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Tripathi J, Gupta S, Mishra BB. Synthesis of guar gum maleate under dry conditions: Reaction kinetics and characterization. Int J Biol Macromol 2024; 267:131591. [PMID: 38621574 DOI: 10.1016/j.ijbiomac.2024.131591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/04/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
In the present study, a novel environment friendly dry method for preparation of guar gum maleate (GGM) with varying degrees of substitution (DS; 0.02-1.04) was optimized. GGM with a maximum DS of 1.04 was successfully synthesized using guar gum (GG) and maleic anhydride (MA) in proportion of 1: 1 at 80 °C with 4 h of reaction time. The activation energy for the reaction was determined to be 36.91 ± 3.61 kJ mol-1 with pre-exponential factor of 1392 min-1. Esterification of GG was confirmed by FT-IR and 13C NMR. Analysis using size exclusion chromatography (SEC) indicated a decrease in weight average molecular weight (Mw) of the polymer with an increase in polydispersity index (PDI) due to esterification. In comparison with GG, GGM displayed increased hydrophobicity and reduced thermal stability, as analysed by differential scanning calorimetry (DSC). Rheological studies of GGM revealed that initial apparent viscosity decreased with increasing DS. For the first time, the study offered valuable insights on GGM synthesis under dry solvent-less reaction conditions enabling simpler and scalable synthesis process.
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Affiliation(s)
- J Tripathi
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Trombay, Mumbai 400094, India.
| | - S Gupta
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Trombay, Mumbai 400094, India.
| | - B B Mishra
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Trombay, Mumbai 400094, India.
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Saxena B, Patel RI, Tripathi J, Sharma A. Visible light-assisted chemistry of vinyl azides and its applications in organic synthesis. Org Biomol Chem 2023. [PMID: 37231951 DOI: 10.1039/d3ob00588g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Vinyl azides have emerged as highly versatile precursors in organic synthesis due to their rich reactivity driven by the excellent leaving-group ability of molecular nitrogen. Over the years, significant advancement has been achieved in the manipulation of vinyl azides for the construction of C-C and C-X bonds. Typical methods involve the application of transition metals and strong oxidants for the conversion of vinyl azides into useful compounds employing harsh reaction conditions coupled with intense product purification. In this regard, visible light chemistry has become one of the most exciting fields in organic synthesis for being mild, sustainable, and often orthogonal to conventional approaches. Visible light-induced reactions involving vinyl azides generate either 2H-azirines or iminyl radicals as key intermediates, which may undergo further useful transformations to form the desired cyclic or acyclic products. Herein, we provide the most significant transformations of vinyl azides as versatile synthetic precursors or transient intermediates for compounds of synthetic and biological significance under visible light photocatalysis. We have classified this review into two parts: (i) formation of an iminyl radical intermediate and (ii) formation of 2H-azirine intermediate-based reactions.
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Affiliation(s)
- Barakha Saxena
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India.
| | - Roshan I Patel
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India.
| | - Jaya Tripathi
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India.
| | - Anuj Sharma
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India.
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3
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Acero MA, Adamson P, Aliaga L, Anfimov N, Antoshkin A, Arrieta-Diaz E, Asquith L, Aurisano A, Back A, Baird M, Balashov N, Baldi P, Bambah BA, Bashar S, Bays K, Bernstein R, Bhatnagar V, Bhattarai D, Bhuyan B, Bian J, Booth AC, Bowles R, Brahma B, Bromberg C, Buchanan N, Butkevich A, Calvez S, Carroll TJ, Catano-Mur E, Childress S, Chatla A, Chirco R, Choudhary BC, Christensen A, Coan TE, Colo M, Cremonesi L, Davies GS, Derwent PF, Ding P, Djurcic Z, Dolce M, Doyle D, Dueñas Tonguino D, Dukes EC, Ehrlich R, Elkins M, Ewart E, Feldman GJ, Filip P, Franc J, Frank MJ, Gallagher HR, Gandrajula R, Gao F, Giri A, Gomes RA, Goodman MC, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hall A, Hartnell J, Hatcher R, Hausner H, He M, Heller K, Hewes V, Himmel A, Jargowsky B, Jarosz J, Jediny F, Johnson C, Judah M, Kakorin I, Kaplan DM, Kalitkina A, Keloth R, Klimov O, Koerner LW, Kolupaeva L, Kotelnikov S, Kralik R, Kullenberg C, Kubu M, Kumar A, Kuruppu CD, Kus V, Lackey T, Lang K, Lasorak P, Lesmeister J, Lin S, Lister A, Liu J, Lokajicek M, Lopez JMC, Mahji R, Magill S, Manrique Plata M, Mann WA, Manoharan MT, Marshak ML, Martinez-Casales M, Matveev V, Mayes B, Messier MD, Meyer H, Miao T, Mikola V, Miller WH, Mishra S, Mishra SR, Mislivec A, Mohanta R, Moren A, Morozova A, Mu W, Mualem L, Muether M, Mulder K, Naples D, Nath A, Nayak N, Nelleri S, Nelson JK, Nichol R, Niner E, Norman A, Norrick A, Nosek T, Oh H, Olshevskiy A, Olson T, Ott J, Pal A, Paley J, Panda L, Patterson RB, Pawloski G, Petrova O, Petti R, Phan DD, Plunkett RK, Pobedimov A, Porter JCC, Rafique A, Prais LR, Raj V, Rajaoalisoa M, Ramson B, Rebel B, Rojas P, Roy P, Ryabov V, Samoylov O, Sanchez MC, Sánchez Falero S, Shanahan P, Shukla S, Sheshukov A, Singh I, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Swain S, Sweeney C, Sztuc A, Talaga RL, Tapia Oregui B, Tas P, Temizel BN, Thakore T, Thayyullathil RB, Thomas J, Tiras E, Tripathi J, Trokan-Tenorio J, Torun Y, Urheim J, Vahle P, Vallari Z, Vasel J, Vrba T, Wallbank M, Warburton TK, Wetstein M, Whittington D, Wickremasinghe DA, Wieber T, Wolcott J, Wu W, Xiao Y, Yaeggy B, Yallappa Dombara A, Yankelevich A, Yonehara K, Yu S, Yu Y, Zadorozhnyy S, Zalesak J, Zhang Y, Zwaska R. Measurement of the ν_{e}-Nucleus Charged-Current Double-Differential Cross Section at ⟨E_{ν}⟩=2.4 GeV Using NOvA. Phys Rev Lett 2023; 130:051802. [PMID: 36800478 DOI: 10.1103/physrevlett.130.051802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/13/2022] [Accepted: 11/08/2022] [Indexed: 06/18/2023]
Abstract
The inclusive electron neutrino charged-current cross section is measured in the NOvA near detector using 8.02×10^{20} protons-on-target in the NuMI beam. The sample of GeV electron neutrino interactions is the largest analyzed to date and is limited by ≃17% systematic rather than the ≃7.4% statistical uncertainties. The double-differential cross section in final-state electron energy and angle is presented for the first time, together with the single-differential dependence on Q^{2} (squared four-momentum transfer) and energy, in the range 1 GeV≤E_{ν}<6 GeV. Detailed comparisons are made to the predictions of the GENIE, GiBUU, NEUT, and NuWro neutrino event generators. The data do not strongly favor a model over the others consistently across all three cross sections measured, though some models have especially good or poor agreement in the single differential cross section vs Q^{2}.
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Affiliation(s)
- M A Acero
- Universidad del Atlantico, Carrera 30 No. 8-49, Puerto Colombia, Atlantico, Colombia
| | - P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Aliaga
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - N Anfimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - A Antoshkin
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - E Arrieta-Diaz
- Universidad del Magdalena, Carrera 32 No 22-08 Santa Marta, Colombia
| | - L Asquith
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Aurisano
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Back
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - M Baird
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Balashov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - P Baldi
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - B A Bambah
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - S Bashar
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - K Bays
- California Institute of Technology, Pasadena, California 91125, USA
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - R Bernstein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bhatnagar
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - D Bhattarai
- University of Mississippi, University, Mississippi 38677, USA
| | - B Bhuyan
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - J Bian
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - A C Booth
- Particle Physics Research Centre, Department of Physics and Astronomy, Queen Mary University of London, London E1 4NS, United Kingdom
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Bowles
- Indiana University, Bloomington, Indiana 47405, USA
| | - B Brahma
- Department of Physics, IIT Hyderabad, Hyderabad 502 205, India
| | - C Bromberg
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - N Buchanan
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - A Butkevich
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - S Calvez
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - T J Carroll
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Catano-Mur
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - S Childress
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Chatla
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - R Chirco
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - B C Choudhary
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - A Christensen
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - T E Coan
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - M Colo
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - L Cremonesi
- Particle Physics Research Centre, Department of Physics and Astronomy, Queen Mary University of London, London E1 4NS, United Kingdom
| | - G S Davies
- Indiana University, Bloomington, Indiana 47405, USA
- University of Mississippi, University, Mississippi 38677, USA
| | - P F Derwent
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Ding
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Dolce
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - D Doyle
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - D Dueñas Tonguino
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - E C Dukes
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - R Ehrlich
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Elkins
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - E Ewart
- Indiana University, Bloomington, Indiana 47405, USA
| | - G J Feldman
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - P Filip
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - J Franc
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - M J Frank
- Department of Physics, University of South Alabama, Mobile, Alabama 36688, USA
| | - H R Gallagher
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - R Gandrajula
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Gao
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - A Giri
- Department of Physics, IIT Hyderabad, Hyderabad 502 205, India
| | - R A Gomes
- Instituto de Física, Universidade Federal de Goiás, Goiânia, Goiás 74690-900, Brazil
| | - M C Goodman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Grichine
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - M Groh
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
- Indiana University, Bloomington, Indiana 47405, USA
| | - R Group
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Guo
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Habig
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - F Hakl
- Institute of Computer Science, The Czech Academy of Sciences, 182 07 Prague, Czech Republic
| | - A Hall
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Hartnell
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Hatcher
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Hausner
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M He
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - K Heller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - V Hewes
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Himmel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Jargowsky
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - J Jarosz
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - F Jediny
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - C Johnson
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - M Judah
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - I Kakorin
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - D M Kaplan
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - A Kalitkina
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - R Keloth
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - O Klimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - L W Koerner
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - L Kolupaeva
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - S Kotelnikov
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - R Kralik
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - Ch Kullenberg
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - M Kubu
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - A Kumar
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - C D Kuruppu
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - V Kus
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - T Lackey
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Indiana University, Bloomington, Indiana 47405, USA
| | - K Lang
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - P Lasorak
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - J Lesmeister
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - S Lin
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - A Lister
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Liu
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - M Lokajicek
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - J M C Lopez
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R Mahji
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - S Magill
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | | | - W A Mann
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M T Manoharan
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - M L Marshak
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - M Martinez-Casales
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - V Matveev
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - B Mayes
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - M D Messier
- Indiana University, Bloomington, Indiana 47405, USA
| | - H Meyer
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - T Miao
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Mikola
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - W H Miller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S Mishra
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - S R Mishra
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Mislivec
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Mohanta
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - A Moren
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - A Morozova
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - W Mu
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Mualem
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Muether
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - K Mulder
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - D Naples
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - A Nath
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - N Nayak
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - S Nelleri
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - J K Nelson
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - R Nichol
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - E Niner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Norman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Norrick
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Nosek
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - H Oh
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Olshevskiy
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - T Olson
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - J Ott
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - A Pal
- National Institute of Science Education and Research, Khurda 752050, Odisha, India
| | - J Paley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Panda
- National Institute of Science Education and Research, Khurda 752050, Odisha, India
| | - R B Patterson
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Pawloski
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - O Petrova
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - R Petti
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - D D Phan
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R K Plunkett
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Pobedimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - J C C Porter
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Rafique
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - L R Prais
- University of Mississippi, University, Mississippi 38677, USA
| | - V Raj
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Rajaoalisoa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - B Ramson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Rebel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - P Rojas
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - P Roy
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - V Ryabov
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - M C Sanchez
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - S Sánchez Falero
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - P Shanahan
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Shukla
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - I Singh
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - P Singh
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
- Particle Physics Research Centre, Department of Physics and Astronomy, Queen Mary University of London, London E1 4NS, United Kingdom
| | - V Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - E Smith
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Smolik
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - P Snopok
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - N Solomey
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - A Sousa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - K Soustruznik
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - M Strait
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - L Suter
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Sutton
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Swain
- National Institute of Science Education and Research, Khurda 752050, Odisha, India
| | - C Sweeney
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - A Sztuc
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R L Talaga
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B Tapia Oregui
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - P Tas
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - B N Temizel
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - T Thakore
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - R B Thayyullathil
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - J Thomas
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Tiras
- Department of Physics, Erciyes University, Kayseri 38030, Turkey
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - J Tripathi
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - J Trokan-Tenorio
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - Y Torun
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - J Urheim
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Vahle
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - Z Vallari
- California Institute of Technology, Pasadena, California 91125, USA
| | - J Vasel
- Indiana University, Bloomington, Indiana 47405, USA
| | - T Vrba
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - M Wallbank
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - T K Warburton
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - M Wetstein
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - D Whittington
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics, Syracuse University, Syracuse New York 13210, USA
| | | | - T Wieber
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - J Wolcott
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - W Wu
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - Y Xiao
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - B Yaeggy
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Yallappa Dombara
- Department of Physics, Syracuse University, Syracuse New York 13210, USA
| | - A Yankelevich
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - K Yonehara
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Yu
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - Y Yu
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - S Zadorozhnyy
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - J Zalesak
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - Y Zhang
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Zwaska
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Acero MA, Adamson P, Aliaga L, Anfimov N, Antoshkin A, Arrieta-Diaz E, Asquith L, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah BA, Bashar S, Bays K, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blair J, Booth AC, Bowles R, Bromberg C, Buchanan N, Butkevich A, Calvez S, Carroll TJ, Catano-Mur E, Choudhary BC, Christensen A, Coan TE, Colo M, Cremonesi L, Davies GS, Derwent PF, Ding P, Djurcic Z, Dolce M, Doyle D, Dueñas Tonguino D, Dukes EC, Duyang H, Edayath S, Ehrlich R, Elkins M, Ewart E, Feldman GJ, Filip P, Franc J, Frank MJ, Gallagher HR, Gandrajula R, Gao F, Giri A, Gomes RA, Goodman MC, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hall A, Hartnell J, Hatcher R, Hausner H, Heller K, Hewes J, Himmel A, Holin A, Huang J, Jargowsky B, Jarosz J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kalitkina A, Kaplan DM, Keloth R, Klimov O, Koerner LW, Kolupaeva L, Kotelnikov S, Kralik R, Kullenberg C, Kubu M, Kumar A, Kuruppu CD, Kus V, Lackey T, Lasorak P, Lang K, Lesmeister J, Lin S, Lister A, Liu J, Lokajicek M, Magill S, Manrique Plata M, Mann WA, Marshak ML, Martinez-Casales M, Matveev V, Mayes B, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mislivec A, Mohanta R, Moren A, Morozova A, Mu W, Mualem L, Muether M, Mulder K, Naples D, Nayak N, Nelson JK, Nichol R, Niner E, Norman A, Norrick A, Nosek T, Oh H, Olshevskiy A, Olson T, Ott J, Paley J, Patterson RB, Pawloski G, Petrova O, Petti R, Phan DD, Plunkett RK, Porter JCC, Rafique A, Raj V, Rajaoalisoa M, Ramson B, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez MC, Sánchez Falero S, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Swain S, Sweeney C, Tapia Oregui B, Tas P, Thakore T, Thayyullathil RB, Thomas J, Tiras E, Tripathi J, Trokan-Tenorio J, Tsaris A, Torun Y, Urheim J, Vahle P, Vallari Z, Vasel J, Vokac P, Vrba T, Wallbank M, Warburton TK, Wetstein M, Whittington D, Wickremasinghe DA, Wojcicki SG, Wolcott J, Wu W, Xiao Y, Yallappa Dombara A, Yonehara K, Yu S, Yu Y, Zadorozhnyy S, Zalesak J, Zhang Y, Zwaska R. Search for Active-Sterile Antineutrino Mixing Using Neutral-Current Interactions with the NOvA Experiment. Phys Rev Lett 2021; 127:201801. [PMID: 34860065 DOI: 10.1103/physrevlett.127.201801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
This Letter reports results from the first long-baseline search for sterile antineutrinos mixing in an accelerator-based antineutrino-dominated beam. The rate of neutral-current interactions in the two NOvA detectors, at distances of 1 and 810 km from the beam source, is analyzed using an exposure of 12.51×10^{20} protons-on-target from the NuMI beam at Fermilab running in antineutrino mode. A total of 121 of neutral-current candidates are observed at the far detector, compared to a prediction of 122±11(stat.)±15(syst.) assuming mixing only between three active flavors. No evidence for ν[over ¯]_{μ}→ν[over ¯]_{s} oscillation is observed. Interpreting this result within a 3+1 model, constraints are placed on the mixing angles θ_{24}<25° and θ_{34}<32° at the 90% C.L. for 0.05 eV^{2}≤Δm_{41}^{2}≤0.5 eV^{2}, the range of mass splittings that produces no significant oscillations at the near detector. These are the first 3+1 confidence limits set using long-baseline accelerator antineutrinos.
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Affiliation(s)
- M A Acero
- Universidad del Atlantico, Carrera 30 No. 8-49, Puerto Colombia, Atlantico, Colombia
| | - P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Aliaga
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - N Anfimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - A Antoshkin
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - E Arrieta-Diaz
- Universidad del Magdalena, Carrera 32 No 22 - 08 Santa Marta, Colombia
| | - L Asquith
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Aurisano
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Back
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - C Backhouse
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - M Baird
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Balashov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - P Baldi
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - B A Bambah
- School of Physics, University of Hyderabad, Hyderabad, 500 046, India
| | - S Bashar
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - K Bays
- California Institute of Technology, Pasadena, California 91125, USA
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - R Bernstein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bhatnagar
- Department of Physics, Panjab University, Chandigarh, 160 014, India
| | - B Bhuyan
- Department of Physics, IIT Guwahati, Guwahati, 781 039, India
| | - J Bian
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - J Blair
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A C Booth
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Bowles
- Indiana University, Bloomington, Indiana 47405, USA
| | - C Bromberg
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - N Buchanan
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - A Butkevich
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - S Calvez
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - T J Carroll
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Catano-Mur
- Department of Physics, William and Mary, Williamsburg, Virginia 23187, USA
| | - B C Choudhary
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - A Christensen
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - T E Coan
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - M Colo
- Department of Physics, William and Mary, Williamsburg, Virginia 23187, USA
| | - L Cremonesi
- School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, United Kingdom
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - G S Davies
- Indiana University, Bloomington, Indiana 47405, USA
- University of Mississippi, University, Mississippi 38677, USA
| | - P F Derwent
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Ding
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Dolce
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - D Doyle
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - D Dueñas Tonguino
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - E C Dukes
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Duyang
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Edayath
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - R Ehrlich
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Elkins
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - E Ewart
- Indiana University, Bloomington, Indiana 47405, USA
| | - G J Feldman
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - P Filip
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - J Franc
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - M J Frank
- Department of Physics, University of South Alabama, Mobile, Alabama 36688, USA
| | - H R Gallagher
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - R Gandrajula
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Gao
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - A Giri
- Department of Physics, IIT Hyderabad, Hyderabad, 502 205, India
| | - R A Gomes
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás, 74690-900, Brazil
| | - M C Goodman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Grichine
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - M Groh
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
- Indiana University, Bloomington, Indiana 47405, USA
| | - R Group
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Guo
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Habig
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - F Hakl
- Institute of Computer Science, The Czech Academy of Sciences, 182 07 Prague, Czech Republic
| | - A Hall
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Hartnell
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Hatcher
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Hausner
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K Heller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - J Hewes
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Himmel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Holin
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - J Huang
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - B Jargowsky
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - J Jarosz
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - F Jediny
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - C Johnson
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - M Judah
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - I Kakorin
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - D Kalra
- Department of Physics, Panjab University, Chandigarh, 160 014, India
| | - A Kalitkina
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - D M Kaplan
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - R Keloth
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - O Klimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - L W Koerner
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - L Kolupaeva
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - S Kotelnikov
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - R Kralik
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - Ch Kullenberg
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - M Kubu
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - A Kumar
- Department of Physics, Panjab University, Chandigarh, 160 014, India
| | - C D Kuruppu
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - V Kus
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - T Lackey
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Lasorak
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - K Lang
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - J Lesmeister
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - S Lin
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - A Lister
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Liu
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - M Lokajicek
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - S Magill
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | | | - W A Mann
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M L Marshak
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - M Martinez-Casales
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - V Matveev
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - B Mayes
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - D P Méndez
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - M D Messier
- Indiana University, Bloomington, Indiana 47405, USA
| | - H Meyer
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - T Miao
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W H Miller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S R Mishra
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Mislivec
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Mohanta
- School of Physics, University of Hyderabad, Hyderabad, 500 046, India
| | - A Moren
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - A Morozova
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - W Mu
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Mualem
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Muether
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - K Mulder
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - D Naples
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - N Nayak
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - J K Nelson
- Department of Physics, William and Mary, Williamsburg, Virginia 23187, USA
| | - R Nichol
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - E Niner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Norman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Norrick
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Nosek
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - H Oh
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Olshevskiy
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - T Olson
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - J Ott
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - J Paley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R B Patterson
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Pawloski
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - O Petrova
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - R Petti
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - D D Phan
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R K Plunkett
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J C C Porter
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Rafique
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Raj
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Rajaoalisoa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - B Ramson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Rebel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - P Rojas
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - V Ryabov
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - M C Sanchez
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - S Sánchez Falero
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - P Shanahan
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - P Singh
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - V Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221 005, India
| | - E Smith
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Smolik
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - P Snopok
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - N Solomey
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - A Sousa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - K Soustruznik
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - M Strait
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - L Suter
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Sutton
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Swain
- National Institute of Science Education and Research, Khurda, 752050, Odisha, India
| | - C Sweeney
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - B Tapia Oregui
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - P Tas
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - T Thakore
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - R B Thayyullathil
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - J Thomas
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Tiras
- Department of Physics, Erciyes University, Kayseri 38030, Turkey
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - J Tripathi
- Department of Physics, Panjab University, Chandigarh, 160 014, India
| | - J Trokan-Tenorio
- Department of Physics, William and Mary, Williamsburg, Virginia 23187, USA
| | - A Tsaris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Y Torun
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - J Urheim
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Vahle
- Department of Physics, William and Mary, Williamsburg, Virginia 23187, USA
| | - Z Vallari
- California Institute of Technology, Pasadena, California 91125, USA
| | - J Vasel
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Vokac
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - T Vrba
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - M Wallbank
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - T K Warburton
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - M Wetstein
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - D Whittington
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics, Syracuse University, Syracuse New York 13210, USA
| | | | - S G Wojcicki
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J Wolcott
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - W Wu
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - Y Xiao
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - A Yallappa Dombara
- Department of Physics, Syracuse University, Syracuse New York 13210, USA
| | - K Yonehara
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Yu
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - Y Yu
- Illinois Institute of Technology, Chicago Illinois 60616, USA
| | - S Zadorozhnyy
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - J Zalesak
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - Y Zhang
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Zwaska
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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5
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Nadeau N, Monuteaux MC, Tripathi J, Stack AM, Perron C, Neuman MI. Does Timing Matter?: Timing and Outcomes Among Early Unplanned PICU Transfers. Hosp Pediatr 2021; 11:896-901. [PMID: 34234009 DOI: 10.1542/hpeds.2020-004978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Many institutions track early ICU transfers (transfer from an inpatient floor to an ICU within 24 hours of admission) as a marker of quality of emergency department (ED) care. There are limited data evaluating whether patient characteristics or clinical outcomes differ on the basis of timing of ICU transfer within this 24-hour window. METHODS We conducted a retrospective cohort study examining all patients ≤21 years old admitted to an inpatient pediatric floor from the ED and subsequently transferred to an ICU within 24 hours of hospitalization. Patient characteristics and clinical outcomes were compared on the basis of timing (0-6 hours, 6-12 hours, 12-24 hours) of ICU transfer. Outcomes assessed included receipt of critical intervention, timing of intervention with respect to transfer, type of intervention received, hospital and ICU length of stay, and mortality at 72 hours and during hospitalization. RESULTS A total of 841 patients were transferred to an ICU within 24 hours from admission to a pediatric ward from the ED; 266 patients (32%) transferred within 6 hours of admission, 269 patients (32%) transferred between 6 and 12 hours, and 306 patients (36%) transferred between 12 and 24 hours. Patient characteristics did not materially differ on the basis of timing of ICU transfer, nor did clinical outcomes. CONCLUSIONS Among children transferred to an ICU within 24 hours of hospitalization, patient characteristics and clinical outcomes did not materially differ based on the timing of transfer relative to admission from the ED.
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Affiliation(s)
| | - Michael C Monuteaux
- Department of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Jaya Tripathi
- Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts
| | - Anne M Stack
- Department of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Catherine Perron
- Department of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Mark I Neuman
- Department of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
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6
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Tripathi J, Arya A, Ciolkosz D. Switchgrass as oil and water-spill sorbent: Effect of particle size, torrefaction, and regeneration methods. J Environ Manage 2021; 281:111908. [PMID: 33421938 DOI: 10.1016/j.jenvman.2020.111908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/15/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Switchgrass, both raw and torrefied, was tested for its ability to sorb water or oil. The cyclic performance was also examined, utilizing centrifugal extraction as the regeneration method. Both oil and water sorption capacity increase with the decreasing size of raw switchgrass particles. Results indicate that 3 mm raw switchgrass can sorb water at a capacity of about 6 times its mass and can sorb oil at a capacity of about 3 times its mass, which makes it a suitable biodegradable sorbent. Torrefaction at 220 °C for 30 min reduces water sorption capacity by an average of 55% but does not have a statistically significant impact on oil sorption. Sorption of liquid is negatively correlated to particle size. Centrifugation is able to partially desorb either liquid from the sorbent, and subsequent sorption cycles do not display lower sorption capacity than the first cycle when calculated on a dry mass basis.
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Affiliation(s)
- Jaya Tripathi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 105 Agricultural Engineering Building, Shortlidge Road University Park, PA, 16802, USA.
| | - Aditi Arya
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 105 Agricultural Engineering Building, Shortlidge Road University Park, PA, 16802, USA.
| | - Daniel Ciolkosz
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 105 Agricultural Engineering Building, Shortlidge Road University Park, PA, 16802, USA.
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7
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Acero M, Adamson P, Aliaga L, Alion T, Allakhverdian V, Anfimov N, Antoshkin A, Arrieta-Diaz E, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah B, Basher S, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blair J, Booth A, Bolshakova A, Bour P, Bromberg C, Buchanan N, Butkevich A, Campbell M, Carroll T, Catano-Mur E, Childress S, Choudhary B, Chowdhury B, Coan T, Colo M, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies G, Derwent P, Ding P, Djurcic Z, Doyle D, Dukes E, Dung P, Duyang H, Edayath S, Ehrlich R, Feldman G, Flanagan W, Frank M, Gallagher H, Gandrajula R, Gao F, Germani S, Giri A, Gomes R, Goodman M, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Howard B, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan D, Keloth R, Klimov O, Koerner L, Kolupaeva L, Kotelnikov S, Kreymer A, Kullenberg C, Kumar A, Kuruppu C, Kus V, Lackey T, Lang K, Lin S, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann W, Marshak M, Matveev V, Méndez D, Messier M, Meyer H, Miao T, Miller W, Mishra S, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mulder K, Mufson S, Murphy R, Musser J, Naples D, Nayak N, Nelson J, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Patterson R, Pawloski G, Pershey D, Petrova O, Petti R, Plunkett R, Potukuchi B, Principato C, Psihas F, Raj V, Radovic A, Rameika R, Rebel B, Rojas P, Ryabov V, Sachdev K, Samoylov O, Sanchez M, Seong I, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga R, Tas P, Thayyullathil R, Thomas J, Tiras E, Torbunov D, Tripathi J, Tsaris A, Torun Y, Urheim J, Vahle P, Vasel J, Vinton L, Vokac P, Vrba T, Wang B, Warburton T, Wetstein M, While M, Whittington D, Wojcicki S, Wolcott J, Yadav N, Yallappa Dombara A, Yang S, Yonehara K, Yu S, Zalesak J, Zamorano B, Zwaska R. Measurement of neutrino-induced neutral-current coherent
π0
production in the NOvA near detector. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.102.012004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Acero M, Adamson P, Aliaga L, Alion T, Allakhverdian V, Anfimov N, Antoshkin A, Asquith L, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah B, Bashar S, Bays K, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blair J, Booth A, Bour P, Bromberg C, Buchanan N, Butkevich A, Calvez S, Carroll T, Catano-Mur E, Childress S, Choudhary B, Coan T, Colo M, Corwin L, Cremonesi L, Davies G, Derwent P, Dharmapalan R, Ding P, Djurcic Z, Doyle D, Dukes E, Dung P, Duyang H, Edayath S, Ehrlich R, Feldman G, Filip P, Flanagan W, Frank M, Gallagher H, Gandrajula R, Gao F, Germani S, Giri A, Gomes R, Goodman M, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Heller K, Hewes J, Himmel A, Holin A, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan D, Keloth R, Klimov O, Koerner L, Kolupaeva L, Kotelnikov S, Kullenberg C, Kumar A, Kuruppu C, Kus V, Lackey T, Lang K, Li L, Lin S, Lokajicek M, Luchuk S, Magill S, Mann W, Marshak M, Martinez-Casales M, Matveev V, Mayes B, Méndez D, Messier M, Meyer H, Miao T, Miller W, Mishra S, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Mulder K, Murphy R, Musser J, Naples D, Nayak N, Nelson J, Nichol R, Niner E, Norman A, Norrick A, Nosek T, Olshevskiy A, Olson T, Paley J, Patterson R, Pawloski G, Petrova O, Petti R, Plunkett R, Rafique A, Psihas F, Raj V, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez M, Sánchez Falero S, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Talaga R, Tapia Oregui B, Tas P, Thayyullathil R, Thomas J, Tiras E, Torbunov D, Tripathi J, Torun Y, Urheim J, Vahle P, Vasel J, Vokac P, Vrba T, Wallbank M, Warburton T, Wetstein M, Whittington D, Wojcicki S, Wolcott J, Yallappa Dombara A, Yonehara K, Yu S, Yu Y, Zadorozhnyy S, Zalesak J, Zhang Y, Zwaska R. Search for multimessenger signals in NOvA coincident with LIGO/Virgo detections. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.101.112006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Nadeau N, Monuteaux MC, Tripathi J, Stack AM, Perron C, Neuman MI. Pediatric ICU Transfers Within 24 Hours of Admission From the Emergency Department: Rate of Transfer, Outcomes, and Clinical Characteristics. Hosp Pediatr 2020; 9:393-397. [PMID: 31023788 DOI: 10.1542/hpeds.2018-0235] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND There is a paucity of data describing pediatric patients transferred to an ICU within 24 hours of hospital admission from the emergency department (ED). METHODS We conducted a retrospective cohort study of patients ≤21 years old transferred from an inpatient floor to an ICU within 24 hours of ED disposition from 2007 to 2016 in a tertiary children's hospital. Patients transferred to an ICU after planned operative procedures were excluded. Rate of transfer, clinical course, and baseline demographic and/or clinical characteristics of these patients are described. RESULTS The study cohort consisted of 841 children, representing 1% of 82 397 non-ICU ED admissions over the 10-year period. Median age was 5.1 years, 43% had ≥1 complex chronic condition, and 47% were hospitalized within the previous year (27% in the ICU). The majority of transfers were for respiratory conditions (65%) and cardiovascular compromise (18%). Median time from hospitalization to ICU transfer was 9.1 hours (interquartile range 5.1-14.9 hours). Thirty-eight percent of transfers received 1 or more critical interventions within 72 hours of hospitalization, most commonly positive pressure ventilation (29%) and vasoactive infusion (9%). Median time to intervention from hospitalization was 13.6 hours (interquartile range 7.5-21.6 hours), 0.8% of children died within 72 hours of hospitalization, and 2.4% died overall. CONCLUSIONS In this single pediatric academic center, 1% of hospitalized children were transferred to an ICU within 24 hours of ED disposition. One-third of patients received a critical intervention, and 2.4% died. Although most ED dispositions are appropriate, future efforts to identify patients at the highest risk of deterioration are warranted.
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Affiliation(s)
- Nicole Nadeau
- Division of Pediatric Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; and
| | - Michael C Monuteaux
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Jaya Tripathi
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Anne M Stack
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Catherine Perron
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Mark I Neuman
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
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10
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Acero MA, Adamson P, Aliaga L, Alion T, Allakhverdian V, Altakarli S, Anfimov N, Antoshkin A, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah BA, Bashar S, Bays K, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Blair J, Booth AC, Bour P, Bromberg C, Buchanan N, Butkevich A, Calvez S, Campbell M, Carroll TJ, Catano-Mur E, Cedeno A, Childress S, Choudhary BC, Chowdhury B, Coan TE, Colo M, Cooper J, Corwin L, Cremonesi L, Davies GS, Derwent PF, Ding P, Djurcic Z, Doyle D, Dukes EC, Duyang H, Edayath S, Ehrlich R, Elkins M, Feldman GJ, Filip P, Flanagan W, Frank MJ, Gallagher HR, Gandrajula R, Gao F, Germani S, Giri A, Gomes RA, Goodman MC, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Hewes J, Himmel A, Holin A, Howard B, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan DM, Keloth R, Klimov O, Koerner LW, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kulenberg C, Kumar A, Kuruppu CD, Kus V, Lackey T, Lang K, Lin S, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Martinez-Casales M, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Mulder K, Murphy R, Musser J, Naples D, Nayak N, Nelson JK, Nichol R, Nikseresht G, Niner E, Norman A, Nosek T, Olshevskiy A, Olson T, Paley J, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan DD, Plunkett RK, Potukuchi B, Principato C, Psihas F, Radovic A, Raj V, Rameika RA, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez MC, Sánchez Falero S, Seong IS, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Talaga RL, Tapia Oregui B, Tas P, Thayyullathil RB, Thomas J, Tiras E, Torbunov D, Tripathi J, Tsaris A, Torun Y, Urheim J, Vahle P, Vasel J, Vinton L, Vokac P, Vrba T, Wallbank M, Wang B, Warburton TK, Wetstein M, While M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yallappa Dombara A, Yonehara K, Yu S, Zadorozhnyy S, Zalesak J, Zamorano B, Zwaska R. First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. Phys Rev Lett 2019; 123:151803. [PMID: 31702305 DOI: 10.1103/physrevlett.123.151803] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Indexed: 06/10/2023]
Abstract
The NOvA experiment has seen a 4.4σ signal of ν[over ¯]_{e} appearance in a 2 GeV ν[over ¯]_{μ} beam at a distance of 810 km. Using 12.33×10^{20} protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν[over ¯]_{μ}→ν[over ¯]_{e} candidates with a background of 10.3 and 102 ν[over ¯]_{μ}→ν[over ¯]_{μ} candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm_{32}^{2}|=2.48_{-0.06}^{+0.11}×10^{-3} eV^{2}/c^{4} and sin^{2}θ_{23} in the ranges from (0.53-0.60) and (0.45-0.48) in the normal neutrino mass hierarchy. The data exclude most values near δ_{CP}=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ_{23} values in the upper octant by 1.6σ.
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Affiliation(s)
- M A Acero
- Universidad del Atlantico, Km. 7 antigua via a Puerto Colombia, Barranquilla, Colombia
| | - P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Aliaga
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Alion
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - V Allakhverdian
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - S Altakarli
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - N Anfimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - A Antoshkin
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - A Aurisano
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Back
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - C Backhouse
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - M Baird
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Balashov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - P Baldi
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - B A Bambah
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - S Bashar
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - K Bays
- California Institute of Technology, Pasadena, California 91125, USA
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - S Bending
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R Bernstein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bhatnagar
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - B Bhuyan
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - J Bian
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - T Blackburn
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - J Blair
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A C Booth
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - P Bour
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - C Bromberg
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - N Buchanan
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - A Butkevich
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - S Calvez
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - M Campbell
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - T J Carroll
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - E Catano-Mur
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - A Cedeno
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - S Childress
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B C Choudhary
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - B Chowdhury
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - T E Coan
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - M Colo
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Cooper
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Corwin
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - L Cremonesi
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - G S Davies
- Indiana University, Bloomington, Indiana 47405, USA
| | - P F Derwent
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Ding
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Doyle
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - E C Dukes
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Duyang
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Edayath
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - R Ehrlich
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Elkins
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - G J Feldman
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - P Filip
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - W Flanagan
- University of Dallas, 1845 E Northgate Drive, Irving, Texas 75062 USA
| | - M J Frank
- Department of Physics, University of South Alabama, Mobile, Alabama 36688, USA
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - H R Gallagher
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - R Gandrajula
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - F Gao
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - S Germani
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - A Giri
- Department of Physics, IIT Hyderabad, Hyderabad 502 205, India
| | - R A Gomes
- Instituto de Física, Universidade Federal de Goiás, Goiânia, Goiás 74690-900, Brazil
| | - M C Goodman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Grichine
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - M Groh
- Indiana University, Bloomington, Indiana 47405, USA
| | - R Group
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Guo
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Habig
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - F Hakl
- Institute of Computer Science, The Czech Academy of Sciences, 182 07 Prague, Czech Republic
| | - J Hartnell
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Hatcher
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Hatzikoutelis
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - K Heller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - J Hewes
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Himmel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Holin
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - B Howard
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Huang
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - J Hylen
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F Jediny
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - C Johnson
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - M Judah
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - I Kakorin
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - D Kalra
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - D M Kaplan
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - R Keloth
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - O Klimov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - L W Koerner
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - L Kolupaeva
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - S Kotelnikov
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - I Kourbanis
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Kreymer
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Ch Kulenberg
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - A Kumar
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - C D Kuruppu
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - V Kus
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - T Lackey
- Indiana University, Bloomington, Indiana 47405, USA
| | - K Lang
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - S Lin
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - M Lokajicek
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - J Lozier
- California Institute of Technology, Pasadena, California 91125, USA
| | - S Luchuk
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - K Maan
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - S Magill
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - W A Mann
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M L Marshak
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - M Martinez-Casales
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - V Matveev
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - D P Méndez
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - M D Messier
- Indiana University, Bloomington, Indiana 47405, USA
| | - H Meyer
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - T Miao
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W H Miller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S R Mishra
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Mislivec
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Mohanta
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - A Moren
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - L Mualem
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Muether
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - S Mufson
- Indiana University, Bloomington, Indiana 47405, USA
| | - K Mulder
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R Murphy
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Musser
- Indiana University, Bloomington, Indiana 47405, USA
| | - D Naples
- Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - N Nayak
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - J K Nelson
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - R Nichol
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - G Nikseresht
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - E Niner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Norman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Nosek
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague 116 36, Czech Republic
| | - A Olshevskiy
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - T Olson
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - J Paley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R B Patterson
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Pawloski
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - D Pershey
- California Institute of Technology, Pasadena, California 91125, USA
| | - O Petrova
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - R Petti
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - D D Phan
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - R K Plunkett
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Potukuchi
- Department of Physics and Electronics, University of Jammu, Jammu Tawi 180 006, Jammu and Kashmir, India
| | - C Principato
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Psihas
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - A Radovic
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - V Raj
- California Institute of Technology, Pasadena, California 91125, USA
| | - R A Rameika
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Rebel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - P Rojas
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - V Ryabov
- Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - M C Sanchez
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - S Sánchez Falero
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - I S Seong
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
| | - P Shanahan
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - P Singh
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - V Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221 005, India
| | - E Smith
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Smolik
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - P Snopok
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - N Solomey
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - E Song
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Sousa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - K Soustruznik
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague 116 36, Czech Republic
| | - M Strait
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - L Suter
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Sutton
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - R L Talaga
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B Tapia Oregui
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - P Tas
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague 116 36, Czech Republic
| | - R B Thayyullathil
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - J Thomas
- Physics and Astronomy Dept., University College London, Gower Street, London WC1E 6BT, United Kingdom
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Tiras
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - D Torbunov
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - J Tripathi
- Department of Physics, Panjab University, Chandigarh 160 014, India
| | - A Tsaris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Y Torun
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - J Urheim
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Vahle
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Vasel
- Indiana University, Bloomington, Indiana 47405, USA
| | - L Vinton
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - P Vokac
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - T Vrba
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - M Wallbank
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - B Wang
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - T K Warburton
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - M Wetstein
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - M While
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - D Whittington
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics, Syracuse University, Syracuse, New York 13210, USA
| | - S G Wojcicki
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J Wolcott
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - N Yadav
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - A Yallappa Dombara
- Department of Physics, Syracuse University, Syracuse, New York 13210, USA
| | - K Yonehara
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Yu
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - S Zadorozhnyy
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary prospect, Moscow 117312, Russia
| | - J Zalesak
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - B Zamorano
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Zwaska
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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11
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Weiner SG, Sherritt KM, Tseng Z, Tripathi J. Advanced visualizations to interpret prescription drug monitoring program information. Drug Alcohol Depend 2019; 201:260-265. [PMID: 31276986 PMCID: PMC6737934 DOI: 10.1016/j.drugalcdep.2019.03.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Prescription drug monitoring programs (PDMPs) are state-based databases that contain information about controlled substance prescriptions dispensed by pharmacies. Many states now mandate PDMP use by prescribers, despite unclear effectiveness. We hypothesize that it is possible to improve the interpretability, and hence effectiveness, of PDMPs by enhancing them. METHODS This was a real-time simulation of an enhanced PDMP. Fifty practicing physicians (25 primary care, 25 emergency medicine) were randomized to see three cases with a standard profile or an enhanced profile that included graphical representation of prescriptions and identified risky prescribing patterns. After a two-month washout period, participants were placed in the opposite group. RESULTS Physicians presented with the enhanced profile were more likely to correctly identify patients with multiple providers (97.0% vs. 85.8%, p = 0.002), overlapping opioid and benzodiazepine prescriptions (94.7% vs. 87.5%, p = 0.03), overlapping opioid prescriptions (89.5% vs. 70.8%, p < 0.01), high daily dosages of opioids (99.2% vs. 25.0%, p = 0.02), and traveling to distant pharmacies (79.7% vs. 2.5%, p < 0.01). There was no difference in interpretation time for the three cases (standard profile 657.3 s vs. enhanced profile 686.3 s, p = 0.31). CONCLUSIONS A simulated PDMP with graphical displays and interpretation of findings was, for this cohort of emergency physicians and primary care physicians, associated with an increased ability to determine high-risk features on PDMP profiles.
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Affiliation(s)
- Scott G. Weiner
- Department of Emergency Medicine, Brigham and Women’s Hospital, 75 Francis Street, NH-226, Boston, MA 02115 United States
| | - Karen M. Sherritt
- Department of Medicine, The Phyllis Jen Center for Primary Care, Brigham and Women’s Hospital, 75 Francis Street, Boston, MA 02115 United States
| | - Zoe Tseng
- Department of Medicine, Brigham and Women's Hospital, 272 Centre Street, Newton, MA 02458, United States.
| | - Jaya Tripathi
- MITRE Corporation, 202 Burlington Road, Bedford, MA 01730, United States.
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12
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Adamson P, Aliaga L, Ambrose D, Anfimov N, Antoshkin A, Arrieta-Diaz E, Augsten K, Aurisano A, Backhouse C, Baird M, Bambah BA, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Bolshakova A, Bromberg C, Brown J, Brunetti G, Buchanan N, Butkevich A, Bychkov V, Campbell M, Catano-Mur E, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies GS, Davies JP, Derwent PF, Desai S, Dharmapalan R, Ding P, Djurcic Z, Dukes EC, Duyang H, Edayath S, Ehrlich R, Feldman GJ, Frank MJ, Gabrielyan M, Gallagher HR, Germani S, Ghosh T, Giri A, Gomes RA, Goodman MC, Grichine V, Group R, Grover D, Guo B, Habig A, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Hylen J, Jediny F, Judah M, Kafka GK, Kalra D, Kasahara SMS, Kasetti S, Keloth R, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kumar A, Kurbanov S, Lang K, Lee WM, Lin S, Liu J, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Matera K, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Murphy R, Musser J, Nelson JK, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Pandey P, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan-Budd S, Plunkett RK, Poling R, Potukuchi B, Principato C, Psihas F, Radovic A, Rameika RA, Rebel B, Reed B, Rocco D, Rojas P, Ryabov V, Sachdev K, Sail P, Samoylov O, Sanchez MC, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sheshukov A, Singh J, Singh J, Singh P, Singh V, Smolik J, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga RL, Tamsett MC, Tas P, Thayyullathil RB, Thomas J, Tian X, Tognini SC, Tripathi J, Tsaris A, Urheim J, Vahle P, Vasel J, Vinton L, Vold A, Vrba T, Wang B, Wetstein M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yang S, Zalesak J, Zamorano B, Zwaska R. Measurement of the Neutrino Mixing Angle θ_{23} in NOvA. Phys Rev Lett 2017; 118:151802. [PMID: 28452513 DOI: 10.1103/physrevlett.118.151802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 06/07/2023]
Abstract
This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×10^{20} protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ_{23} mixing (θ_{23}=π/4). Assuming the normal mass hierarchy, we find Δm_{32}^{2}=(2.67±0.11)×10^{-3} eV^{2} and sin^{2}θ_{23} at the two statistically degenerate values 0.404_{-0.022}^{+0.030} and 0.624_{-0.030}^{+0.022}, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.
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Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Aliaga
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Ambrose
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - N Anfimov
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - A Antoshkin
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - E Arrieta-Diaz
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - K Augsten
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - A Aurisano
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - C Backhouse
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Baird
- Indiana University, Bloomington, Indiana 47405, USA
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - B A Bambah
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - K Bays
- California Institute of Technology, Pasadena, California 91125, USA
| | - B Behera
- Department of Physics, IIT Hyderabad, Hyderabad 502 205, India
| | - S Bending
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - R Bernstein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bhatnagar
- Department of Physics, Panjab University, Chandigarh, 106 014, India
| | - B Bhuyan
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - J Bian
- Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697, USA
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - T Blackburn
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Bolshakova
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - C Bromberg
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Brown
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - G Brunetti
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - N Buchanan
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - A Butkevich
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary Prospect, Moscow 117312, Russia
| | - V Bychkov
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - M Campbell
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - E Catano-Mur
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - S Childress
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B C Choudhary
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - B Chowdhury
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - T E Coan
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - J A B Coelho
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M Colo
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Cooper
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Corwin
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - L Cremonesi
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - D Cronin-Hennessy
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - G S Davies
- Indiana University, Bloomington, Indiana 47405, USA
| | - J P Davies
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - P F Derwent
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Desai
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Dharmapalan
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Ding
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - E C Dukes
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Duyang
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Edayath
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - R Ehrlich
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - G J Feldman
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - M J Frank
- Department of Physics, University of South Alabama, Mobile, Alabama 36688, USA
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Gabrielyan
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - H R Gallagher
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - S Germani
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - T Ghosh
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás 74690-900, Brazil
| | - A Giri
- Department of Physics, IIT Hyderabad, Hyderabad 502 205, India
| | - R A Gomes
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás 74690-900, Brazil
| | - M C Goodman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Grichine
- Nuclear Physics Department, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - R Group
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Grover
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - B Guo
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Habig
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - J Hartnell
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Hatcher
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Hatzikoutelis
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - K Heller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - A Himmel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Holin
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - J Hylen
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F Jediny
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - M Judah
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - G K Kafka
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - D Kalra
- Department of Physics, Panjab University, Chandigarh, 106 014, India
| | - S M S Kasahara
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S Kasetti
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - R Keloth
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - L Kolupaeva
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - S Kotelnikov
- Nuclear Physics Department, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - I Kourbanis
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Kreymer
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Kumar
- Department of Physics, Panjab University, Chandigarh, 106 014, India
| | - S Kurbanov
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - K Lang
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - W M Lee
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Lin
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - J Liu
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - M Lokajicek
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - J Lozier
- California Institute of Technology, Pasadena, California 91125, USA
| | - S Luchuk
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary Prospect, Moscow 117312, Russia
| | - K Maan
- Department of Physics, Panjab University, Chandigarh, 106 014, India
| | - S Magill
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - W A Mann
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M L Marshak
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - K Matera
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Matveev
- Institute for Nuclear Research of Russia, Academy of Sciences 7a, 60th October Anniversary Prospect, Moscow 117312, Russia
| | - D P Méndez
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - M D Messier
- Indiana University, Bloomington, Indiana 47405, USA
| | - H Meyer
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - T Miao
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W H Miller
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S R Mishra
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Mohanta
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - A Moren
- Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
| | - L Mualem
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Muether
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - S Mufson
- Indiana University, Bloomington, Indiana 47405, USA
| | - R Murphy
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Musser
- Indiana University, Bloomington, Indiana 47405, USA
| | - J K Nelson
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - R Nichol
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - E Niner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Indiana University, Bloomington, Indiana 47405, USA
| | - A Norman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Nosek
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague 116 36, Czech Republic
| | - Y Oksuzian
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Olshevskiy
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - T Olson
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - J Paley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Pandey
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - R B Patterson
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Pawloski
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - D Pershey
- California Institute of Technology, Pasadena, California 91125, USA
| | - O Petrova
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - R Petti
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Phan-Budd
- Department of Physics, Winona State University, P.O. Box 5838, Winona, Minnesota 55987, USA
| | - R K Plunkett
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Poling
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - B Potukuchi
- Department of Physics and Electronics, University of Jammu, Jammu Tawi, 180 006 Jammu and Kashmir, India
| | - C Principato
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Psihas
- Indiana University, Bloomington, Indiana 47405, USA
| | - A Radovic
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - R A Rameika
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Rebel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Reed
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - D Rocco
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - P Rojas
- Department of Physics, Colorado State University, Fort Collins, Colorado 80523-1875, USA
| | - V Ryabov
- Nuclear Physics Department, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - K Sachdev
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - P Sail
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - M C Sanchez
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - R Schroeter
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J Sepulveda-Quiroz
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - P Shanahan
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - J Singh
- Department of Physics, Panjab University, Chandigarh, 106 014, India
| | - J Singh
- Department of Physics and Electronics, University of Jammu, Jammu Tawi, 180 006 Jammu and Kashmir, India
| | - P Singh
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
| | - V Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - J Smolik
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - N Solomey
- Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, Kansas 67206, USA
| | - E Song
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Sousa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - K Soustruznik
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague 116 36, Czech Republic
| | - M Strait
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - L Suter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R L Talaga
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M C Tamsett
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - P Tas
- Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague 116 36, Czech Republic
| | - R B Thayyullathil
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - J Thomas
- Physics and Astronomy Department, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - X Tian
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S C Tognini
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás 74690-900, Brazil
| | - J Tripathi
- Department of Physics, Panjab University, Chandigarh, 106 014, India
| | - A Tsaris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Urheim
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Vahle
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Vasel
- Indiana University, Bloomington, Indiana 47405, USA
| | - L Vinton
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Vold
- School of Physics and Astronomy, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, USA
| | - T Vrba
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - B Wang
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - M Wetstein
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | | | - S G Wojcicki
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J Wolcott
- Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA
| | - N Yadav
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - S Yang
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - J Zalesak
- Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic
| | - B Zamorano
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Zwaska
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Srivastava A, Singh VK, Patnaik S, Tripathi J, Singh P, Nath G, Asthana RK. Antimicrobial assay and genetic screening of selected freshwater Cyanobacteria and identification of a biomolecule dihydro-2H-pyran-2-one derivative. J Appl Microbiol 2017; 122:881-892. [PMID: 28004519 DOI: 10.1111/jam.13385] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 11/24/2016] [Accepted: 12/16/2016] [Indexed: 12/19/2022]
Abstract
AIMS Explorations of freshwater Cyanobacteria as antimicrobial (bacteria, fungi and methicillin-resistant Staphylococcus aureus (MRSA) strains) drug resource using bioassay, NRPS (non-ribosomal polypeptide synthetase) and PKS (polyketide synthase) genes, as well as in silico approach. METHODS AND RESULTS We have bioassayed the extracts of Phormidium CCC727, Geitlerinema CCC728, Arthrospira CCC729, Leptolyngbya CCC732, Phormidium CCC730, Phormidium CCC731 against six pathogenic bacteria comprising Gram (+ve): S. aureus including seven clinical MRSA and Enterococcus faecalis, Gram (-ve): Escherichia coli, Salmonella Typhimurium, Klebsiella pneumoniae and Shigella boydii along with non-pathogenic Enterobacter aerogenes as well as fungal strains (Cryptococcus neoformans and Candida albicans, C. krusei, C. tropicalis and Aspergillus niger) exhibiting antimicrobial potential. The NRPS and PKS genes of the target strains were also amplified and sequenced. The putative protein structures were predicted using bioinformatics approach. CONCLUSION PKS gene expression indicated β keto-acyl synthase as one of the important active domains in the biomolecules related to antitumour and antifungal group. The simultaneous identification of the biomolecule (dihydro-2H-pyran-2-one derivative) was also inferred spectroscopically. SIGNIFICANCE AND IMPACT OF THE STUDY Freshwater Cyanobacteria are prolific producers of secondary metabolite(s) that may act as the antimicrobial drug resource in addition to their much explored marine counterpart.
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Affiliation(s)
- A Srivastava
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - V K Singh
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - S Patnaik
- Council of Scientific and Industrial Research - Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India
| | - J Tripathi
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - P Singh
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - G Nath
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - R K Asthana
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Kumar M, Singh P, Tripathi J, Srivastava A, Tripathi MK, Ravi AK, Asthana RK. Identification and structure elucidation of antimicrobial compounds from Lyngbya aestuarii and Aphanothece bullosa. Cell Mol Biol (Noisy-le-grand) 2014; 60:82-89. [PMID: 25535717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Accepted: 09/07/2014] [Indexed: 06/04/2023]
Abstract
Cyanobacteria are known to produce array of compounds. In an earlier report, we reported antibacterial and antifungal activities in methanolic crude extracts of laboratory grown Lyngbya aestuarii and Aphanothece bullosa isolated from Chilka Lake and local paddy field respectively. In this report the same methanolic crude extracts were subjected to TLC purification twice by altering the solvents and UV—illuminated bands bioassayed. Such UV illuminated potent bands obtained after 2nd TLC were subjected to spectroscopic analysis (UV, IR, 1H NMR and LCMS/MS). We have screened malyngolide and dragonamide C from L. aestuarii and a diterpenoid and majusculoic acid from A. bullosa. Dragonamide C and malyngolide were found to be antifungal while majusculoic acid and a diterpenoid as antibacterial. As far as our knowledge goes, this is the first ever report where fresh water A. bullosa was found to be a source of diterpenoid and majusculoic acid. Likewise, L. aestuarii was also established as a source of malyngolide and dragonamide C. This again indicated that cyanobacteria are inherently endowed with the capacity to produce metabolites according to niche and species specific manner emphasising fresh water cyanobacterial strain are as important as marine one.
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Affiliation(s)
- M Kumar
- Banaras Hindu University Centre of Advanced Study in Botany, Faculty of Science Varanasi India
| | - P Singh
- Banaras Hindu University Centre of Advanced Study in Botany, Faculty of Science Varanasi India
| | - J Tripathi
- Banaras Hindu University Centre of Advanced Study in Botany, Faculty of Science Varanasi India
| | - A Srivastava
- Banaras Hindu University Centre of Advanced Study in Botany, Faculty of Science Varanasi India
| | - M K Tripathi
- Banaras Hindu University Centre of Advanced Study in Botany, Faculty of Science Varanasi India
| | - A K Ravi
- All India Institute of Medical Sciences Department of Ocular Pharmacology and Pharmacy, Dr. R.P. Centre for Ophthalmic Sciences New Delhi India
| | - R K Asthana
- Banaras Hindu University Centre of Advanced Study in Botany, Faculty of Science Varanasi India asthana.ravi@gmail.com
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Selot A, Tripathi J, Tripathi S, Aynyas M. Structural and photoluminescence study of Mn2+-activated CaYAl3 O7 blue phosphors. LUMINESCENCE 2013; 29:362-6. [PMID: 23881552 DOI: 10.1002/bio.2553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/05/2013] [Accepted: 05/23/2013] [Indexed: 11/10/2022]
Abstract
The structural and photoluminescence properties of CaYAl3 O7 phosphor material doped with varying concentration of Mn(2+) have been studied. The phosphor material was synthesized by the combustion method at 500 °C and was characterized using X-ray diffraction, Fourier transform infrared spectroscopy and photoluminescence spectroscopy (PL). X-ray diffraction showed that the crystallites have average sizes in the range of ~58-70 nm. Corresponding Fourier transform infrared spectroscopy investigations confirm the phase formation and the presence of aluminate group (Al-O bands) in CaYAl3 O7 :Mn(2+) phosphor. Under the excitation at 356 nm wavelength, the PL spectra show the occurrence of two emission peaks obtained in the blue region at 389 nm and 412 nm, which is attributed to the 4 T1(G) → 6A1 transition of Mn(2+) ion. Upon increasing Mn(2+) concentration, the relative PL intensity shows an initial decrement followed by an increase displaying the effect of concentration quenching. Overall the results suggest the possibility of using this material in white lighting devices and plasma display panels.
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Affiliation(s)
- Anupam Selot
- Department of Physics, Sadhu Vaswani PG College, Bhopal, 462020, (M.P.), India
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Abstract
The rice-wheat cropping system is critically important for food security, employment and livelihood of the people in the country. This cropping system is generally practiced in lowland ecosystem where heavier soil texture and excess soil moisture cause serious problems in the establishment of winter crops. Consequently, it increases tillage and land preparation cost and delays planting that resulted into very low yield and income. Conventional tillage and crop establishment methods require more resources, time, labor and energy which are increasingly becoming scarce and expensive. This paper illustrates the results of farmer participatory research on resource conservation technologies (RCTs) implemented in the farmers field of Rupendehi district for two successive years (2006/07 and 2007/08) with the purpose of enhancing adoption of such technologies that would sustain higher and more stable yields with the use of less resources and costs. The results of different RCTs such as zero tillage (ZT), reduced tillage with power tiller seed drill (PTSD) and power tiller rotary (PTR) and surface seeding (SS) revealed great saving in seed, land preparation/ seeding and irrigation costs with significant increment in yield and income indicating their suitability and superiority over conventional tillage (CT) in the given ecosystems. DOI: http://dx.doi.org/10.3126/ajn.v1i0.7540 Agronomy Journal of Nepal (Agron JN) Vol. 1: 2010 pp.28-39
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Tripathi J, Tripathi S, Keller J, Das K, Shripathi T. Degradation study on structural and optical properties of annealed Rhodamine B doped poly(vinyl) alcohol films. Polym Degrad Stab 2013. [DOI: 10.1016/j.polymdegradstab.2012.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tripathi J, Agrawal UR, Tewari RR. Chromosomal Response to Chemical Stress in Flesh Fly Sarcophaga ruficornis (Fab.) (Sarcophagidae: Diptera). CYTOLOGIA 2009. [DOI: 10.1508/cytologia.74.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | - Uma Rani Agrawal
- Department of Zoology, C.M.P. Degree College, University of Allahabad
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Marathe A, Tripathi J, Handa V, Date V. Human babesiosis--a case report. Indian J Med Microbiol 2005; 23:267-9. [PMID: 16327127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Babesiosis is an emerging, tick-transmitted, zoonotic disease caused by hematotropic parasites of the genus Babesia. Most cases of Babesial infections in humans have been acquired in temperate regions of the United States, Europe, France and England. A few cases of Babesiosis have been described in other parts of the world, including China, Taiwan, Egypt, South Africa, and Mexico.1,2 We report the first case of human Babesiosis, in a normosplenic, previously healthy individual from India.
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Affiliation(s)
- A Marathe
- Pranav Pathology Laboratory, Raopura, Baroda - 390 001, Gujarat, India.
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Rajavashisth TB, Liao JK, Galis ZS, Tripathi S, Laufs U, Tripathi J, Chai NN, Xu XP, Jovinge S, Shah PK, Libby P. Inflammatory cytokines and oxidized low density lipoproteins increase endothelial cell expression of membrane type 1-matrix metalloproteinase. J Biol Chem 1999; 274:11924-9. [PMID: 10207013 DOI: 10.1074/jbc.274.17.11924] [Citation(s) in RCA: 147] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We investigated whether inflammatory cytokines or oxidized low density lipoproteins (Ox-LDL) present in human atheroma modulate extracellular matrix degradation by inducing membrane type 1-matrix metalloproteinase (MT1-MMP) expression. Cultured human endothelial cells (EC) constitutively expressed MT1-MMP mRNA and protein with enzymatic activity. Tumor necrosis factor-alpha (TNF-alpha), interleukin-1alpha, or interleukin-1beta caused a time-dependent increase in the steady-state MT1-MMP mRNA levels within 4 h of exposure, peaking about 4-fold by 6 h, and remaining elevated for 12 h. Increased MT1-MMP mRNA correlated with a 2.5-fold increase in MT1-MMP protein in EC membranes. Ox-LDL also increased MT1-MMP mRNA levels that varied with the duration of exposure and degree of LDL oxidation. The increase in MT1-MMP mRNA occurred within 6 h of exposure to Ox-LDL and peaked over 3-fold by 6 h. Ox-LDL, but not native LDL, increased MT1-MMP protein by 2-fold in EC membranes. A combination of TNF-alpha and Ox-LDL was additive in increasing MT1-MMP expression. Nuclear run-on assays showed that TNF-alpha or Ox-LDL augmented steady-state mRNA levels by increased transcription of the MT1-MMP gene. These findings indicate that activation of EC by inflammatory cytokines and/or Ox-LDL increase MT1-MMP expression. Since MT1-MMP promotes matrix degradation by activating pro-MMP-2, these results suggest a novel mechanism whereby cytokines or Ox-LDL may influence extracellular matrix remodeling.
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Affiliation(s)
- T B Rajavashisth
- Atherosclerosis Research Center, Division of Cardiology, Cedars-Sinai Medical Center, UCLA School of Medicine, Los Angeles, California 90048, USA.
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Sengupta S, Tripathi J, Tandon R, Raje M, Roy RP, Basu SK, Mukhopadhyay A. Hemoglobin endocytosis in Leishmania is mediated through a 46-kDa protein located in the flagellar pocket. J Biol Chem 1999; 274:2758-65. [PMID: 9915807 DOI: 10.1074/jbc.274.5.2758] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Four lines of evidence indicate that a specific high affinity binding site on the surface of Leishmania donovani promastigotes mediates rapid internalization and degradation of hemoglobin. 1) Binding and uptake of 125I-hemoglobin by Leishmania followed saturation kinetics and were competed by unlabeled hemoglobin but not by globin or hemin or other heme- or iron-containing proteins. 2) Immunogold labeling studies revealed that, at 4 degreesC, hemoglobin binding was localized in the flagellar pocket of the promastigotes. Indirect immunofluorescence assays showed that, at 37 degreesC, the bound hemoglobin in such cells entered an endocytic compartment within 2 min and dispersed throughout the cell body by 15 min. 3) After incubation with hemoglobin-gold conjugates at 25 degreesC or 37 degreesC, the particles accumulated in discrete intracellular vesicles. 4) A single biotinylated protein of 46 kDa was revealed when solubilized membranes from surface biotinylated intact Leishmania adsorbed by hemoglobin-agarose beads were subjected to SDS-polyacrylamide gel electrophoresis and Western blotting with avidin-horseradish peroxidase. Considered together, these data indicate that this 46-kDa protein on the cell surface of L. donovani promastigotes mediates the binding of hemoglobin and its rapid internalization through a vesicular pathway characteristic of receptor-mediated endocytosis.
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Affiliation(s)
- S Sengupta
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
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Rajavashisth T, Qiao JH, Tripathi S, Tripathi J, Mishra N, Hua M, Wang XP, Loussararian A, Clinton S, Libby P, Lusis A. Heterozygous osteopetrotic (op) mutation reduces atherosclerosis in LDL receptor- deficient mice. J Clin Invest 1998; 101:2702-10. [PMID: 9637704 PMCID: PMC508861 DOI: 10.1172/jci119891] [Citation(s) in RCA: 191] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Previous studies of osteopetrotic (op) mice lacking macrophage colony-stimulating factor (M-CSF) have revealed an inhibition of atherosclerosis development in the apolipoprotein E (apo E)-deficient model and in a diet-induced model. Using LDL receptor-deficient mice, we now show that atheroma development depends on M-CSF concentration, as not only did homozygous osteopetrotic (op/op) mice have dramatically reduced lesions (approximately 0.3% of control lesion size) but heterozygous (op/+) mice had lesions < 1% of controls. Mice heterozygous for the op mutation (op/+) had plasma levels of M-CSF about half those in controls (+/+). The finding that an approximately 2-fold reduction in M-CSF expression reduced lesion size approximately 100-fold suggests the requirement for a threshold level of M-CSF. The effect of M-CSF on atherosclerosis did not appear to be mediated either by changes in plasma lipoprotein levels or alterations in the number of circulating monocytes, since both op/op and op/+ mice exhibited higher levels of atherogenic lipoprotein particles and (op/+) mice showed a near normal number of circulating monocytes. LDL receptor-null littermates of genotypes from op/op, op/+, to +/+ showed monocyte differentials of approximately 4.5, 8, and 10%, respectively. Taken together, these results suggest that the effects of M-CSF on atherogenesis may not be mediated by expression of M-CSF systemically or by modulation of the number of circulating monocytes. These studies support the conclusion that M-CSF participates critically in fatty streak formation and progression to a complex fibrous lesion.
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Affiliation(s)
- T Rajavashisth
- Atherosclerosis Research Center, Division of Cardiology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA.
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23
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Qiao JH, Tripathi J, Mishra NK, Cai Y, Tripathi S, Wang XP, Imes S, Fishbein MC, Clinton SK, Libby P, Lusis AJ, Rajavashisth TB. Role of macrophage colony-stimulating factor in atherosclerosis: studies of osteopetrotic mice. Am J Pathol 1997; 150:1687-99. [PMID: 9137093 PMCID: PMC1858194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Previous in vitro and in vivo studies have suggested that macrophage colony-stimulating factor (M-CSF) plays a role in atherogenesis. To examine this hypothesis, we have studied atherogenesis in osteopetrotic (op/op) mice, which lack M-CSF due to a structural gene mutation. Atherogenesis was induced either by feeding the mice a high fat, high cholesterol diet or by crossing op mice with apolipoprotein E (apo E) knockout mice to generate mice lacking both M-CSF and apo E. In both the dietary and apo E knockout models, M-CSF deficiency resulted in significantly reduced atherogenesis. For example, in the apo E knockout model, homozygosity for the op mutation totally abolished aortic atherogenesis in male mice and reduced the size of the lesions approximately 97% in female mice. Mice heterozygous for the op mutation also exhibited a significant decrease in lesion size. Among apo E knockout mice, the frequency of atherosclerosis in aortic arch was 0/6 (op/op), 1/15 (op/+), and 12/16 (+/+). The effect of the M-CSF on atherosclerosis did not appear to be mediated by changes in plasma lipoproteins, as the op mice exhibited higher levels of atherogenic lipoprotein particles. The effects of the op mutation on atherogenesis may have resulted from decreased circulating monocytes, reduced tissue macrophages, or diminished arterial M-CSF.
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Affiliation(s)
- J H Qiao
- Department of Medicine, Molecular Biology Institute, University of California, Los Angeles, USA
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24
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Brahmachari SK, Meera G, Sarkar PS, Balagurumoorthy P, Tripathi J, Raghavan S, Shaligram U, Pataskar S. Simple repetitive sequences in the genome: structure and functional significance. Electrophoresis 1995; 16:1705-14. [PMID: 8582360 DOI: 10.1002/elps.11501601283] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The current explosion of DNA sequence information has generated increasing evidence for the claim that noncoding repetitive DNA sequences present within and around different genes could play an important role in genetic control processes, although the precise role and mechanism by which these sequences function are poorly understood. Several of the simple repetitive sequences which occur in a large number of loci throughout the human and other eukaryotic genomes satisfy the sequence criteria for forming non-B DNA structures in vitro. We have summarized some of the features of three different types of simple repeats that highlight the importance of repetitive DNA in the control of gene expression and chromatin organization. (i) (TG/CA)n repeats are widespread and conserved in many loci. These sequences are associated with nucleosomes of varying linker length and may play a role in chromatin organization. These Z-potential sequences can help absorb superhelical stress during transcription and aid in recombination. (ii) Human telomeric repeat (TTAGGG)n adopts a novel quadruplex structure and exhibits unusual chromatin organization. This unusual structural motif could explain chromosome pairing and stability. (iii) Intragenic amplification of (CTG)n/(CAG)n trinucleotide repeat, which is now known to be associated with several genetic disorders, could down-regulate gene expression in vivo. The overall implications of these findings vis-à-vis repetitive sequences in the genome are summarized.
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Affiliation(s)
- S K Brahmachari
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India
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Abstract
Sixteen million nucleotide sequence of genome of various organisms have been analysed to detect and study the extent of occurrence of simple repetitive sequences. Two sequence motifs (TG/CA)n and (CT/AG)n capable of adopting unusual DNA structures, left handed Z-conformation and triple-helical conformation respectively, are found to be abundant in rodent and human genomes, but almost completely absent in bacterial genome. (TG/CA)n and (CT/AG)n sequences are present mostly in the intron or 5'/3' flanking regions of the genes. The presence of such repeat motifs in genomic sequence of higher eukaryotes has been correlated with their possible functional significance in nucleosome organization, recombination and gene expression.
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Affiliation(s)
- J Tripathi
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore
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26
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Affiliation(s)
- J Tripathi
- Department of Chemistry, University of Allahabad, Allahabad-211002, India
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Tripathi J, Joshi T. Phytochemical investigation of roots of Pterocarpus marsupium. Isolation and structural studies of two new flavanone glycosides. Z NATURFORSCH C 1988; 43:184-6. [PMID: 3388955 DOI: 10.1515/znc-1988-3-406] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
From the roots of Pterocarpus marsupium 7-Hydroxy-6, 8-dimethyl flavanone-7-O-alpha-L-arabinopyranoside and 7,8,4'-trihydroxy-3', 5'-dimethoxy flavanone-4'-O-beta-D-glucopyranoside have been isolated and their structure elucidated.
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Affiliation(s)
- J Tripathi
- Department of Chemistry, University of Allahabad, India
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Allen G, Chai Z, Chong C, Higgins J, Tripathi J. Thermodynamics of oligomeric binary mixtures of polyethylene glycol and polypropylene glycol methylethers. POLYMER 1984. [DOI: 10.1016/0032-3861(84)90331-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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