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Arrazola JM, Bergholm V, Brádler K, Bromley TR, Collins MJ, Dhand I, Fumagalli A, Gerrits T, Goussev A, Helt LG, Hundal J, Isacsson T, Israel RB, Izaac J, Jahangiri S, Janik R, Killoran N, Kumar SP, Lavoie J, Lita AE, Mahler DH, Menotti M, Morrison B, Nam SW, Neuhaus L, Qi HY, Quesada N, Repingon A, Sabapathy KK, Schuld M, Su D, Swinarton J, Száva A, Tan K, Tan P, Vaidya VD, Vernon Z, Zabaneh Z, Zhang Y. Quantum circuits with many photons on a programmable nanophotonic chip. Nature 2021; 591:54-60. [PMID: 33658692 PMCID: PMC11008968 DOI: 10.1038/s41586-021-03202-1] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 01/04/2021] [Indexed: 01/31/2023]
Abstract
Growing interest in quantum computing for practical applications has led to a surge in the availability of programmable machines for executing quantum algorithms1,2. Present-day photonic quantum computers3-7 have been limited either to non-deterministic operation, low photon numbers and rates, or fixed random gate sequences. Here we introduce a full-stack hardware-software system for executing many-photon quantum circuit operations using integrated nanophotonics: a programmable chip, operating at room temperature and interfaced with a fully automated control system. The system enables remote users to execute quantum algorithms that require up to eight modes of strongly squeezed vacuum initialized as two-mode squeezed states in single temporal modes, a fully general and programmable four-mode interferometer, and photon number-resolving readout on all outputs. Detection of multi-photon events with photon numbers and rates exceeding any previous programmable quantum optical demonstration is made possible by strong squeezing and high sampling rates. We verify the non-classicality of the device output, and use the platform to carry out proof-of-principle demonstrations of three quantum algorithms: Gaussian boson sampling, molecular vibronic spectra and graph similarity8. These demonstrations validate the platform as a launchpad for scaling photonic technologies for quantum information processing.
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Abba A, Accorsi C, Agnes P, Alessi E, Amaudruz P, Annovi A, Desages FA, Back S, Badia C, Bagger J, Basile V, Batignani G, Bayo A, Bell B, Beschi M, Biagini D, Bianchi G, Bicelli S, Bishop D, Boccali T, Bombarda A, Bonfanti S, Bonivento WM, Bouchard M, Breviario M, Brice S, Brown R, Calvo-Mozota JM, Camozzi L, Camozzi M, Capra A, Caravati M, Carlini M, Ceccanti A, Celano B, Cela Ruiz JM, Charette C, Cogliati G, Constable M, Crippa C, Croci G, Cudmore S, Dahl CE, Dal Molin A, Daley M, Di Guardo C, D'Avenio G, Davignon O, Del Tutto M, De Ruiter J, Devoto A, Diaz Gomez Maqueo P, Di Francesco F, Dossi M, Druszkiewicz E, Duma C, Elliott E, Farina D, Fernandes C, Ferroni F, Finocchiaro G, Fiorillo G, Ford R, Foti G, Fournier RD, Franco D, Fricbergs C, Gabriele F, Galbiati C, Garcia Abia P, Gargantini A, Giacomelli L, Giacomini F, Giacomini F, Giarratana LS, Gillespie S, Giorgi D, Girma T, Gobui R, Goeldi D, Golf F, Gorel P, Gorini G, Gramellini E, Grosso G, Guescini F, Guetre E, Hackman G, Hadden T, Hawkins W, Hayashi K, Heavey A, Hersak G, Hessey N, Hockin G, Hudson K, Ianni A, Ienzi C, Ippolito V, James CC, Jillings C, Kendziora C, Khan S, Kim E, King M, King S, Kittmer A, Kochanek I, Kowalkowski J, Krücken R, Kushoro M, Kuula S, Laclaustra M, Leblond G, Lee L, Lennarz A, Leyton M, Li X, Liimatainen P, Lim C, Lindner T, Lomonaco T, Lu P, Lubna R, Lukhanin GA, Luzón G, MacDonald M, Magni G, Maharaj R, Manni S, Mapelli C, Margetak P, Martin L, Martin S, Martínez M, Massacret N, McClurg P, McDonald AB, Meazzi E, Migalla R, Mohayai T, Tosatti LM, Monzani G, Moretti C, Morrison B, Mountaniol M, Muraro A, Napoli P, Nati F, Natzke CR, Noble AJ, Norrick A, Olchanski K, Ortiz de Solorzano A, Padula F, Pallavicini M, Palumbo I, Panontin E, Papini N, Parmeggiano L, Parmeggiano S, Patel K, Patel A, Paterno M, Pellegrino C, Pelliccione P, Pesudo V, Pocar A, Pope A, Pordes S, Prelz F, Putignano O, Raaf JL, Ratti C, Razeti M, Razeto A, Reed D, Refsgaard J, Reilly T, Renshaw A, Retriere F, Riccobene E, Rigamonti D, Rizzi A, Rode J, Romualdez J, Russel L, Sablone D, Sala S, Salomoni D, Salvo P, Sandoval A, Sansoucy E, Santorelli R, Savarese C, Scapparone E, Schaubel T, Scorza S, Settimo M, Shaw B, Shawyer S, Sher A, Shi A, Skensved P, Slutsky A, Smith B, Smith NJT, Stenzler A, Straubel C, Stringari P, Suchenek M, Sur B, Tacchino S, Takeuchi L, Tardocchi M, Tartaglia R, Thomas E, Trask D, Tseng J, Tseng L, VanPagee L, Vedia V, Velghe B, Viel S, Visioli A, Viviani L, Vonica D, Wada M, Walter D, Wang H, Wang MHLS, Westerdale S, Wood D, Yates D, Yue S, Zambrano V. The novel Mechanical Ventilator Milano for the COVID-19 pandemic. PHYSICS OF FLUIDS (WOODBURY, N.Y. : 1994) 2021; 33:037122. [PMID: 33897243 PMCID: PMC8060010 DOI: 10.1063/5.0044445] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/14/2021] [Indexed: 06/12/2023]
Abstract
This paper presents the Mechanical Ventilator Milano (MVM), a novel intensive therapy mechanical ventilator designed for rapid, large-scale, low-cost production for the COVID-19 pandemic. Free of moving mechanical parts and requiring only a source of compressed oxygen and medical air to operate, the MVM is designed to support the long-term invasive ventilation often required for COVID-19 patients and operates in pressure-regulated ventilation modes, which minimize the risk of furthering lung trauma. The MVM was extensively tested against ISO standards in the laboratory using a breathing simulator, with good agreement between input and measured breathing parameters and performing correctly in response to fault conditions and stability tests. The MVM has obtained Emergency Use Authorization by U.S. Food and Drug Administration (FDA) for use in healthcare settings during the COVID-19 pandemic and Health Canada Medical Device Authorization for Importation or Sale, under Interim Order for Use in Relation to COVID-19. Following these certifications, mass production is ongoing and distribution is under way in several countries. The MVM was designed, tested, prepared for certification, and mass produced in the space of a few months by a unique collaboration of respiratory healthcare professionals and experimental physicists, working with industrial partners, and is an excellent ventilator candidate for this pandemic anywhere in the world.
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Vaidya VD, Morrison B, Helt LG, Shahrokshahi R, Mahler DH, Collins MJ, Tan K, Lavoie J, Repingon A, Menotti M, Quesada N, Pooser RC, Lita AE, Gerrits T, Nam SW, Vernon Z. Broadband quadrature-squeezed vacuum and nonclassical photon number correlations from a nanophotonic device. SCIENCE ADVANCES 2020; 6:6/39/eaba9186. [PMID: 32967824 PMCID: PMC7531882 DOI: 10.1126/sciadv.aba9186] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 08/06/2020] [Indexed: 05/27/2023]
Abstract
We report demonstrations of both quadrature-squeezed vacuum and photon number difference squeezing generated in an integrated nanophotonic device. Squeezed light is generated via strongly driven spontaneous four-wave mixing below threshold in silicon nitride microring resonators. The generated light is characterized with both homodyne detection and direct measurements of photon statistics using photon number-resolving transition-edge sensors. We measure 1.0(1) decibels of broadband quadrature squeezing (~4 decibels inferred on-chip) and 1.5(3) decibels of photon number difference squeezing (~7 decibels inferred on-chip). Nearly single temporal mode operation is achieved, with measured raw unheralded second-order correlations g (2) as high as 1.95(1). Multiphoton events of over 10 photons are directly detected with rates exceeding any previous quantum optical demonstration using integrated nanophotonics. These results will have an enabling impact on scaling continuous variable quantum technology.
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Larin I, Zhang Y, Gasparian A, Gan L, Miskimen R, Khandaker M, Dale D, Danagoulian S, Pasyuk E, Gao H, Ahmidouch A, Ambrozewicz P, Baturin V, Burkert V, Clinton E, Deur A, Dolgolenko A, Dutta D, Fedotov G, Feng J, Gevorkyan S, Glamazdin A, Guo L, Isupov E, Ito MM, Klein F, Kowalski S, Kubarovsky A, Kubarovsky V, Lawrence D, Lu H, Ma L, Matveev V, Morrison B, Micherdzinska A, Nakagawa I, Park K, Pedroni R, Phelps W, Protopopescu D, Rimal D, Romanov D, Salgado C, Shahinyan A, Sober D, Stepanyan S, Tarasov VV, Taylor S, Vasiliev A, Wood M, Ye L, Zihlmann B. Precision measurement of the neutral pion lifetime. Science 2020; 368:506-509. [PMID: 32355026 DOI: 10.1126/science.aay6641] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 03/30/2020] [Indexed: 11/02/2022]
Abstract
The explicit breaking of the axial symmetry by quantum fluctuations gives rise to the so-called axial anomaly. This phenomenon is solely responsible for the decay of the neutral pion π0 into two photons (γγ), leading to its unusually short lifetime. We precisely measured the decay width Γ of the [Formula: see text] process. The differential cross sections for π0 photoproduction at forward angles were measured on two targets, carbon-12 and silicon-28, yielding [Formula: see text], where stat. denotes the statistical uncertainty and syst. the systematic uncertainty. We combined the results of this and an earlier experiment to generate a weighted average of [Formula: see text] Our final result has a total uncertainty of 1.50% and confirms the prediction based on the chiral anomaly in quantum chromodynamics.
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Blondeau LD, Rubin JE, Deneer H, Kanthan R, Morrison B, Sanche S, Rypien C, Dueck D, Beck G, Blondeau JM. Persistent infection with Staphylococcus pseudintermedius in an adult oncology patient with transmission from a family dog. J Chemother 2020; 32:151-155. [PMID: 32124685 DOI: 10.1080/1120009x.2020.1735142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Staphylococcus pseudintermedius is a well known commensal organism of dogs but also a canine opportunistic pathogen. Reports of this organism being recovered from specimens from humans might suggest an increase prevalence in human infections and/or improved diagnostic leading to more accurate identification. Here we report a case of persistent S. pseudintermedius infection in an adult female oncology patient including colonization of the tip of an indwelling catheter. Diligence by laboratories in correctly isolating and identifying this pathogen (including susceptibility testing) is essential for optimal patient care.
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Tan K, Menotti M, Vernon Z, Sipe JE, Liscidini M, Morrison B. Stimulated four-wave mixing in linearly uncoupled resonators. OPTICS LETTERS 2020; 45:873-876. [PMID: 32058493 DOI: 10.1364/ol.381563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
We experimentally demonstrate stimulated four-wave mixing in two linearly uncoupled integrated $ {{\rm Si}_3}{{\rm N}_4} $Si3N4 micro-resonators. In our structure, the resonance combs of each resonator can be tuned independently, with the energy transfer from one resonator to the other occurring in the presence of a nonlinear interaction. This method allows flexible and efficient on-chip control of the nonlinear interaction, and is readily applicable to other third-order nonlinear phenomena.
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Wong D, Aiken W, Reid G, Mayhew R, Brooks M, Dassado C, Williams A, Morrison B. 089 Penile Fracture: A Prospective Randomized Study Comparing Erectile Function at 12 Months after Immediate Degloving Repair versus Delayed Localized Repair. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.01.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Menotti M, Morrison B, Tan K, Vernon Z, Sipe JE, Liscidini M. Nonlinear Coupling of Linearly Uncoupled Resonators. PHYSICAL REVIEW LETTERS 2019; 122:013904. [PMID: 31012691 DOI: 10.1103/physrevlett.122.013904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Indexed: 06/09/2023]
Abstract
We demonstrate a system composed of two resonators that are coupled solely through a nonlinear interaction, and where the linear properties of each resonator can be controlled locally. We show that this class of dynamical systems has peculiar properties with important consequences for the study of classical and quantum nonlinear optical phenomena. As an example we discuss the case of dual-pump spontaneous four-wave mixing.
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Smith JS, Rushworth R, Morrison B, Grant D. THE TREATMENT OF SEVERE ANXIETY WITH CHRONICALLY IMPLANTED INTRACEREBRAL ELECTRODES. Med J Aust 2019. [DOI: 10.5694/j.1326-5377.1975.tb95137.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Morrison B, Burden-Teh E, Batchelor J, Mead E, Grindlay D, Ratib S. Quality of life in people with vitiligo: a systematic review and meta-analysis. Br J Dermatol 2017; 177:e338-e339. [DOI: 10.1111/bjd.15933] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lithwick D, Chu K, Morrison B, Isserow S, McKinney J. A COST-EFFECTIVENESS ANALYSIS OF PRE-PARTICIPATION SCREENING OF YOUNG CANADIAN ATHLETES. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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12
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Metzger S, Morrison B, Trock B, Burnett A. 186 Analysis of the Priapism Impact Profile in a Sample of Jamaican Men. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Morrison B, Madden W, Gabay L. 136 Testosterone Replacement Therapy in Adolescents with Sickle Cell Disease Reverses Hypogonadism without Promoting Priapism. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.02.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Morrison B, Hamilton P, Reid M. 013 Effect of Hydroxyurea on Recurrent Ischemic Priapism in Jamaican Men with Sickle Cell Disease. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Morrison B, Anele U, Metzger S, Madden W, Burnett A. 038 Validation of the Priapism Profile Impact Questionnaire. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.02.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Baillie N, Tkachenko S, Zhang J, Bosted P, Bültmann S, Christy ME, Fenker H, Griffioen KA, Keppel CE, Kuhn SE, Melnitchouk W, Tvaskis V, Adhikari KP, Adikaram D, Aghasyan M, Amaryan MJ, Anghinolfi M, Arrington J, Avakian H, Baghdasaryan H, Battaglieri M, Biselli AS, Branford D, Briscoe WJ, Brooks WK, Burkert VD, Carman DS, Celentano A, Chandavar S, Charles G, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Daniel A, Dashyan N, De Vita R, De Sanctis E, Deur A, Dey B, Djalali C, Dodge G, Domingo J, Doughty D, Dupre R, Dutta D, Ent R, Egiyan H, El Alaoui A, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Fradi A, Gabrielyan MY, Gevorgyan N, Gilfoyle GP, Giovanetti KL, Girod FX, Gohn W, Golovatch E, Gothe RW, Graham L, Guegan B, Guidal M, Guler N, Guo L, Hafidi K, Heddle D, Hicks K, Holtrop M, Hungerford E, Hyde CE, Ilieva Y, Ireland DG, Ispiryan M, Isupov EL, Jawalkar SS, Jo HS, Kalantarians N, Khandaker M, Khetarpal P, Kim A, Kim W, King PM, Klein A, Klein FJ, Klimenko A, Kubarovsky V, Kuleshov SV, Kvaltine ND, Livingston K, Lu HY, MacGregor IJD, Mao Y, Markov N, McKinnon B, Mineeva T, Morrison B, Moutarde H, Munevar E, Nadel-Turonski P, Ni A, Niccolai S, Niculescu I, Niculescu G, Osipenko M, Ostrovidov AI, Pappalardo L, Park K, Park S, Pasyuk E, Anefalos Pereira S, Pisano S, Pozdniakov S, Price JW, Procureur S, Prok Y, Protopopescu D, Raue BA, Ricco G, Rimal D, Ripani M, Rosner G, Rossi P, Sabatié F, Saini MS, Salgado C, Schott D, Schumacher RA, Seder E, Sharabian YG, Sober DI, Sokhan D, Stepanyan S, Stepanyan SS, Stoler P, Strauch S, Taiuti M, Tang W, Ungaro M, Vineyard MF, Voutier E, Watts DP, Weinstein LB, Weygand DP, Wood MH, Zana L, Zhao B. Measurement of the neutron F2 structure function via spectator tagging with CLAS. PHYSICAL REVIEW LETTERS 2012; 108:142001. [PMID: 22540786 DOI: 10.1103/physrevlett.108.142001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Indexed: 05/31/2023]
Abstract
We report on the first measurement of the F(2) structure function of the neutron from the semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the backward hemisphere. Restricting the momentum of the spectator protons to ≲100 MeV/c and their angles to ≳100° relative to the momentum transfer allows an interpretation of the process in terms of scattering from nearly on-shell neutrons. The F(2)(n) data collected cover the nucleon-resonance and deep-inelastic regions over a wide range of Bjorken x for 0.65<Q(2)<4.52 GeV(2), with uncertainties from nuclear corrections estimated to be less than a few percent. These measurements provide the first determination of the neutron to proton structure function ratio F(2)(n)/F(2)(p) at 0.2≲x≲0.8 with little uncertainty due to nuclear effects.
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Loharikar A, Briere E, Schwensohn C, Weninger S, Wagendorf J, Scheftel J, Garvey A, Warren K, Villamil E, Rudroff JA, Kurkjian K, Levine S, Colby K, Morrison B, May A, Anderson S, Daly E, Marsden-Haug N, Erdman MM, Gomez T, Rhorer A, Castleman J, Adams JK, Theobald L, Lafon P, Trees E, Mitchell J, Sotir MJ, Behravesh CB. Four Multistate Outbreaks of Human Salmonella Infections Associated with Live Poultry Contact, United States, 2009. Zoonoses Public Health 2012; 59:347-54. [DOI: 10.1111/j.1863-2378.2012.01461.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hindmarsh TA, Stewart AW, Morrison B. Resection Operation for Gangrenous Intussusception in Infants. BRITISH MEDICAL JOURNAL 2011; 2:382-4. [PMID: 20786291 DOI: 10.1136/bmj.2.4420.382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Holtkamp DJ, Polson DD, Torremorell M, Morrison B, Classen DM, Becton L, Henry S, Rodibaugh MT, Rowland RR, Snelson H, Straw B, Yeske P, Zimmerman J. [Terminology for classifying the porcine reproductive and respiratory syndrome virus (PRRSV) status of swine herds]. Tierarztl Prax Ausg G Grosstiere Nutztiere 2011; 39:101-112. [PMID: 22138772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Standardized terminology for the porcine reproductive and respiratory syndrome virus (PRRSV) status of swine herds is necessary to facilitate communication between veterinarians, swine producers, genetic companies, and other industry participants. It is also required for implementation of regional and national efforts towards PRRSV control and elimination. The purpose of this paper is to provide a herd classification system for describing the PRRSV status of herds, based upon a set of definitions reflecting the biology and ecology of PRRSV. The herd classification system was developed by a definitions committee formed jointly by the American Association of Swine Veterinarians (AASV) and the United States Department of Agriculture PRRS-Coordinated Agricultural Project, and was approved by the AASV Board of Directors on March 9, 2010. The committee included veterinarians from private practice and industry, researchers, and representatives from AASV and the National Pork Board. Breeding herds, with or without growing pigs on the same premises, are categorized as Positive Unstable (Category I), Positive Stable (Category II), Provisional Negative (Category III), or Negative (Category IV) on the basis of herd shedding and exposure status. Growing-pig herds are categorized as Positive or Negative. Recommended testing procedures and decision rules for herd classification are detailed.
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Avakian H, Bosted P, Burkert VD, Elouadrhiri L, Adhikari KP, Aghasyan M, Amaryan M, Anghinolfi M, Baghdasaryan H, Ball J, Battaglieri M, Bedlinskiy I, Biselli AS, Branford D, Briscoe WJ, Brooks W, Carman DS, Casey L, Cole PL, Collins P, Crabb D, Crede V, D'Angelo A, Daniel A, Dashyan N, De Vita R, De Sanctis E, Deur A, Dey B, Dhamija S, Dickson R, Djalali C, Dodge G, Doughty D, Dupre R, El Alaoui A, Eugenio P, Fegan S, Fersch R, Forest TA, Fradi A, Gabrielyan MY, Gavalian G, Gevorgyan N, Gilfoyle GP, Giovanetti KL, Girod FX, Gohn W, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Hafidi K, Hakobyan H, Hanretty C, Hassall N, Heddle D, Hicks K, Holtrop M, Ilieva Y, Ireland DG, Isupov EL, Jawalkar SS, Jo HS, Joo K, Keller D, Khandaker M, Khetarpal P, Kim W, Klein A, Klein FJ, Konczykowski P, Kubarovsky V, Kuhn SE, Kuleshov SV, Kuznetsov V, Livingston K, Lu HY, Markov N, Mayer M, Martinez D, McAndrew J, McCracken ME, McKinnon B, Meyer CA, Mineeva T, Mirazita M, Mokeev V, Moreno B, Moriya K, Morrison B, Moutarde H, Munevar E, Nadel-Turonski P, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niroula MR, Osipenko M, Ostrovidov AI, Paremuzyan R, Park K, Park S, Pasyuk E, Pereira SA, Perrin Y, Pisano S, Pogorelko O, Price JW, Procureur S, Prok Y, Protopopescu D, Raue BA, Ricco G, Ripani M, Rosner G, Rossi P, Sabatié F, Saini MS, Salamanca J, Salgado C, Schumacher RA, Seder E, Seraydaryan H, Sharabian YG, Sober DI, Sokhan D, Stepanyan SS, Stepanyan S, Stoler P, Strauch S, Suleiman R, Taiuti M, Tedeschi DJ, Tkachenko S, Ungaro M, Vernarsky B, Vineyard MF, Voutier E, Watts DP, Weinstein LB, Weygand DP, Wood MH, Zhang J, Zhao B, Zhao ZW. Measurement of single- and double-spin asymmetries in deep inelastic pion electroproduction with a longitudinally polarized target. PHYSICAL REVIEW LETTERS 2010; 105:262002. [PMID: 21231647 DOI: 10.1103/physrevlett.105.262002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Indexed: 05/30/2023]
Abstract
We report the first measurement of the transverse momentum dependence of double-spin asymmetries in semi-inclusive production of pions in deep-inelastic scattering off the longitudinally polarized proton. Data have been obtained using a polarized electron beam of 5.7 GeV with the CLAS detector at the Jefferson Lab (JLab). Modulations of single spin asymmetries over the azimuthal angle between lepton scattering and hadron production planes ϕ have been measured over a wide kinematic range in Bjorken x and virtual photon squared four-momentum Q2. A significant nonzero sin2ϕ single spin asymmetry was observed for the first time indicating strong spin-orbit correlations for transversely polarized quarks in the longitudinally polarized proton.
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Baghdasaryan H, Weinstein LB, Laget JM, Adhikari KP, Aghasyan M, Amarian M, Anghinolfi M, Avakian H, Ball J, Battaglieri M, Bedlinskiy I, Bennett RP, Berman BL, Biselli AS, Bookwalter C, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Carman DS, Crede V, D'Angelo A, Daniel A, Dashyan N, De Vita R, De Sanctis E, Deur A, Dey B, Dickson R, Djalali C, Dodge GE, Doughty D, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Eugenio P, Fegan S, Gabrielyan MY, Gilfoyle GP, Giovanetti KL, Gohn W, Gothe RW, Griffioen KA, Guidal M, Guo L, Gyurjyan V, Hakobyan H, Hanretty C, Hyde CE, Hicks K, Holtrop M, Ilieva Y, Ireland DG, Joo K, Keller D, Khandaker M, Khetarpal P, Kim A, Kim W, Klein A, Klein FJ, Konczykowski P, Kubarovsky V, Kuhn SE, Kuleshov SV, Kuznetsov V, Kvaltine ND, Livingston K, Lu HY, Macgregor IJD, Markov N, Mayer M, McAndrew J, McKinnon B, Meyer CA, Mikhailov K, Mokeev V, Moreno B, Moriya K, Morrison B, Moutarde H, Munevar E, Nadel-Turonski P, Nepali C, Niccolai S, Niculescu G, Niculescu I, Osipenko M, Ostrovidov AI, Paremuzyan R, Park K, Park S, Pasyuk E, Pereira SA, Pisano S, Pogorelko O, Pozdniakov S, Price JW, Procureur S, Protopopescu D, Ricco G, Ripani M, Rosner G, Rossi P, Sabatié F, Salgado C, Schumacher RA, Seraydaryan H, Smith GD, Sober DI, Sokhan D, Stepanyan SS, Stepanyan S, Stoler P, Strauch S, Taiuti M, Tang W, Taylor CE, Tedeschi DJ, Ungaro M, Vineyard MF, Voutier E, Watts DP, Weygand DP, Wood MH, Zhao B, Zhao ZW. Tensor correlations measured in 3He(e,e' pp)n. PHYSICAL REVIEW LETTERS 2010; 105:222501. [PMID: 21231381 DOI: 10.1103/physrevlett.105.222501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Indexed: 05/30/2023]
Abstract
We have measured the 3He(e,e' pp)n reaction at an incident energy of 4.7 GeV over a wide kinematic range. We identified spectator correlated pp and pn nucleon pairs by using kinematic cuts and measured their relative and total momentum distributions. This is the first measurement of the ratio of pp to pn pairs as a function of pair total momentum p(tot). For pair relative momenta between 0.3 and 0.5 GeV/c, the ratio is very small at low p(tot) and rises to approximately 0.5 at large p(tot). This shows the dominance of tensor over central correlations at this relative momentum.
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Wood MH, Nasseripour R, Paolone M, Djalali C, Weygand DP, Adhikari KP, Anghinolfi M, Ball J, Battaglieri M, Batourine V, Bedlinskiy I, Bellis M, Berman BL, Biselli AS, Branford D, Briscoe WJ, Brooks WK, Burkert VD, Careccia SL, Carman DS, Cole PL, Collins P, Crede V, D'Angelo A, Daniel A, De Vita R, De Sanctis E, Deur A, Dey B, Dhamija S, Dickson R, Doughty D, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Eugenio P, Fegan S, Gabrielyan MY, Garçon M, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gohn W, Gothe RW, Graham L, Guidal M, Guo L, Hafidi K, Hakobyan H, Hanretty C, Hassall N, Hicks K, Holtrop M, Ilieva Y, Ireland DG, Ishkhanov BS, Jawalkar SS, Jo HS, Joo K, Keller D, Khandaker M, Khetarpal P, Kim A, Kim W, Klein A, Klein FJ, Konczykowski P, Kubarovsky V, Kuleshov SV, Kuznetsov V, Livingston K, Martinez D, Mayer M, McAndrew J, McCracken ME, McKinnon B, Meyer CA, Mineeva T, Mirazita M, Mokeev V, Moreno B, Moriya K, Morrison B, Munevar E, Nadel-Turonski P, Ni A, Niccolai S, Niculescu G, Niculescu I, Niroula MR, Osipenko M, Ostrovidov AI, Paremuzyan R, Park K, Park S, Pasyuk E, Anefalos Pereira S, Pisano S, Pogorelko O, Pozdniakov S, Price JW, Procureur S, Prok Y, Protopopescu D, Raue BA, Ricco G, Ripani M, Rosner G, Rossi P, Sabatié F, Saini MS, Salamanca J, Salgado C, Schott D, Schumacher RA, Seder E, Seraydaryan H, Sharabian YG, Smith GD, Sober DI, Sokhan D, Stepanyan S, Stepanyan SS, Stoler P, Strakovsky II, Strauch S, Taiuti M, Tang W, Taylor CE, Tedeschi DJ, Tkachenko S, Ungaro M, Vernarsky B, Vineyard MF, Voutier E, Watts DP, Weinstein LB, Zhang J, Zhao B, Zhao ZW. Absorption of the ω and ϕ mesons in nuclei. PHYSICAL REVIEW LETTERS 2010; 105:112301. [PMID: 20867566 DOI: 10.1103/physrevlett.105.112301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2010] [Indexed: 05/29/2023]
Abstract
Because of their long lifetimes, the ω and ϕ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112 experiment at the Thomas Jefferson National Accelerator Facility, the mesons were photoproduced from 2H, C, Ti, Fe, and Pb targets. This Letter reports the first measurement of the ratio of nuclear transparencies for the e+e- channel. The ratios indicate larger in-medium widths compared with what have been reported in other reaction channels. The absorption of the ω meson is stronger than that reported by the CBELSA-TAPS experiment and cannot be explained by recent theoretical models.
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Morrison B, Mendoza I, Delgado D, Reyes Jaimes O, Aranzazu N, Paniz Mondolfi AE. Diffuse (anergic) cutaneous leishmaniasis responding to amphotericin B. Clin Exp Dermatol 2009; 35:e116-9. [PMID: 19886959 DOI: 10.1111/j.1365-2230.2009.03737.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
American cutaneous leishmaniasis is an important endemic zoonotic disease in the New World that comprises a spectrum of clinical manifestations. Diffuse cutaneous leishmaniasis (DCL) is a rare form of the disease characterized by antigen-specific immunodeficiency that often presents with multiple disfiguring non-ulcerated confluent nodules or plaques that involve large areas of the skin, resembling lepromatous leprosy. Relapse is invariable in advanced stages, despite aggressive chemotherapy, and a plethora of drugs has been tested with unchanging results. We report on a severe an exceptional case that resolved after treatment with amphotericin B, a drug considered only mildly effective, and discuss the therapeutic approach to this disease.
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Lumsden JS, Morrison B, Yason C, Russell S, Young K, Yazdanpanah A, Huber P, Al-Hussinee L, Stone D, Way K. Mortality event in freshwater drum Aplodinotus grunniens from Lake Ontario, Canada, associated with viral haemorrhagic septicemia virus, type IV. DISEASES OF AQUATIC ORGANISMS 2007; 76:99-111. [PMID: 17760383 DOI: 10.3354/dao076099] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A mortality event primarily affecting freshwater drum Aplodinotus grunniens was noted during April and May 2005 in the Bay of Quinte, Lake Ontario, Canada. A conservative estimate of the number of dead drum was approximately 100 metric tonnes. Large numbers of dead round goby Neogobius melanostomus were also seen, as well as a few muskellunge Esox masquinongy. In the drum, there was a consistent histological pattern of variably severe panvasculitis, a necrotising myocarditis, meningoencephalitis and a segmental enteritis. Moderate numbers of bullet-shaped viral particles consistent with a rhabdovirus were identified by transmission electron microscopy (TEM) in affected heart tissue. Following primary isolation from pooled tissues on fathead minnow (FHM) cells, a morphologically similar virus, approximately 165 x 60 nm in size, was visualised. Identification of the isolate as viral haemorrhagic septicemia virus (VHSV) was confirmed by enzyme immunoassay and by polymerase chain reaction. An appropriately sized product (468 bp) of the G-glycoprotein gene (nucleotides [nt] 340 to 807) was generated with RNA extracted from FHM cell supernatant. Analysis of a 360 nt partial glycoprotein gene sequence (nt 360 to 720) indicated a 96.4 to 97.2% nucleotide identity with known strains of North American (NA) VHSV. Analysis using Neighbour-joining distance methods assigned the isolate to the same lineage as the NA and Japanese isolates (Genogroup IV). However, there was sufficient sequence divergence from known NA VHSV isolates to suggest that this isolate may represent a distinct subgroup. The effects of ongoing mortality in freshwater drum and in multiple species during spring 2006 suggest that this newly recognised virus in the Great Lakes will have continued impact in the near future.
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Berenson JR, Matous JV, Ferretti D, Swift RA, Mapes RA, Morrison B, Yeh HS. A phase I/II study of arsenic trioxide, bortezomib, and ascorbic acid in relapsed or refractory multiple myeloma. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.7611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7611 Background: The combination of arsenic trioxide (ATO) and bortezomib (B) has shown synergistic anti-tumor activity against human multiple myeloma (MM) cells in preclinical studies, suggesting that this combination may effectively treat patients with MM. In addition, ascorbic acid (AA) can sensitize MM cells to the cytotoxic effects of ATO. Methods: Patients with relapsed or refractory MM were enrolled in this phase I/II dose-escalation trial in 6 cohorts. Patients were given ATO (0.125 or 0.250 mg/kg), B (0.7, 1.0, or 1.3 mg/m2), and a fixed dose of AA (1000 mg) IV on days 1, 4, 8, and 11 of a 21-day cycle for a maximum of 8 cycles. The planned sample size was a maximum of 27 evaluable patients. The primary endpoint was safety and tolerability of the ATO/B/AA regimen in patients with relapsed or refractory MM. Results: At the time of this interim analysis, 22 patients (median age, 63 years) have been enrolled, and accrual has been completed on all cohorts. This group had failed a median of 4 (range, 3–9) prior therapies. One occurrence of grade 4 thrombocytopenia was observed. One occurrence of asymptomatic arrhythmia led to patient withdrawal. All other adverse events were grade 1 or 2. For the 21 patients evaluable for efficacy, objective responses were observed in 10 patients (43%), including 2 complete (CR), 2 partial (PR), and 5 minor (MR) responses. Only 1 (1 MR) of 6 patients receiving the lowest dose of B (0.7 mg/m2) showed a response, whereas 8 (2 CR, 2 PR, and 4 MR) of 15 patients receiving the higher doses (1.0 or 1.3 mg/m2) responded. Conclusions: The ATO/B/AA regimen was well tolerated by the majority of patients, and produced objective responses in 43% of the patients in this heavily pretreated group. The results of this phase I/II study warrant further clinical evaluation of the ATO/B/AA combination regimen for the treatment of patients with relapsed or refractory MM. [Table: see text]
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