51
|
Prabhakar G, Gregg P, Rishoj L, Kristensen P, Ramachandran S. Octave-wide supercontinuum generation of light-carrying orbital angular momentum. OPTICS EXPRESS 2019; 27:11547-11556. [PMID: 31052998 DOI: 10.1364/oe.27.011547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
Nonlinear frequency generation of light-carrying orbital angular momentum (OAM), which facilitates realization of on-demand, frequency-diverse optical vortices, would have utility in fields such as super-resolution microscopy, space-division multiplexing and quantum hyper-entanglement. In bulk media, OAM beams primarily differ in spatial phase, so the nonlinear overlap integral for self-phase matched χ(3) processes remains the same across the 4-fold degenerate subspace of beams (formed by different combinations of spin and orbital angular momentum) carrying the same OAM magnitude. This indistinguishable nature of nonlinear coupling implies that supercontinuum generation, which substantially relies on self/cross-phase modulation, and Raman soliton shifting of ultrashort pulses typically results in multimode outputs that do not conserve OAM. Here, using specially designed optical fibers that support OAM modes whose group velocity can be tailored, we demonstrate Raman solitons in OAM modes as well as the first supercontinuum spanning more than an octave (630 nm to 1430 nm), with the entire spectrum in the same polarization as well as OAM state. This is fundamentally possible because spin-orbit interactions in suitably designed fibers lead to large effective index and group velocity splitting of modes, and this helps tailoring nonlinear mode selectivity such that all nonlinearly generated frequencies reside in modes with high spatial mode purity.
Collapse
|
52
|
Sigmund EE, Baete SH, Luo T, Patel K, Wang D, Rossi I, Duarte A, Bruno M, Mossa D, Femia A, Ramachandran S, Stoffel D, Babb JS, Franks AG, Bencardino J. Correction to: MRI assessment of the thigh musculature in dermatomyositis and healthy subjects using diffusion tensor imaging, intravoxel incoherent motion and dynamic DTI. Eur Radiol 2019; 29:1061. [DOI: 10.1007/s00330-018-5606-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
53
|
Antikainen A, Rishøj L, Tai B, Ramachandran S, Agrawal GP. Fate of a Soliton in a High Order Spatial Mode of a Multimode Fiber. PHYSICAL REVIEW LETTERS 2019; 122:023901. [PMID: 30720303 DOI: 10.1103/physrevlett.122.023901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Indexed: 06/09/2023]
Abstract
We show numerically that under certain conditions noise-induced soliton self-mode conversion dominates over soliton self-frequency shift for a soliton in a high order spatial mode of a multimode optical fiber. The input soliton has to be group index matched to a lower order mode for a frequency separation for which the Raman gain is non-negligible, and this condition determines the wavelength of the pulse growing from noise. The phenomenon has no known analogs in single-mode or graded-index fibers. The results demonstrate that it is possible for a noise-induced physical process to dominate over a seeded one even for noise levels at the fundamental limit.
Collapse
|
54
|
Adam J, Adamczyk L, Adams J, Adkins J, Agakishiev G, Aggarwal M, Ahammed Z, Alekseev I, Anderson D, Aoyama R, Aparin A, Arkhipkin D, Aschenauer E, Ashraf M, Atetalla F, Attri A, Averichev G, Bai X, Bairathi V, Barish K, Bassill A, Behera A, Bellwied R, Bhasin A, Bhati A, Bielcik J, Bielcikova J, Bland L, Bordyuzhin I, Brandenburg J, Brandin A, Brown D, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Chakaberia I, Chaloupka P, Chan B, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen J, Chen X, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford H, Csanad M, Das S, Dedovich T, Deng J, Deppner I, Derevschikov A, Didenko L, Dilks C, Dong X, Drachenberg J, Dunlop J, Efimov L, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Federicova P, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores C, Fulek L, Gagliardi C, Galatyuk T, Geurts F, Gibson A, Grosnick D, Gunarathne D, Guo Y, Gupta A, Guryn W, Hamad A, Hamed A, Harlenderova A, Harris J, He L, Heppelmann S, Heppelmann S, Herrmann N, Hirsch A, Holub L, Hong Y, Horvat S, Huang B, Huang H, Huang S, Huang T, Huang X, Humanic T, Huo P, Igo G, Jacobs W, Jentsch A, Jia J, Jiang K, Jowzaee S, Ju X, Judd E, Kabana S, Kagamaster S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke H, Keane D, Kechechyan A, Kikoła D, Kim C, Kinghorn T, Kisel I, Kisiel A, Kochenda L, Kosarzewski L, Kraishan A, Kramarik L, Krauth L, Kravtsov P, Krueger K, Kulathunga N, Kumar L, Kunnawalkam Elayavalli R, Kvapil J, Kwasizur J, Lacey R, Landgraf J, Lauret J, Lebedev A, Lednicky R, Lee J, Li C, Li W, Li X, Li Y, Liang Y, Lidrych J, Lin T, Lipiec A, Lisa M, Liu F, Liu H, Liu P, Liu P, Liu Y, Liu Z, Ljubicic T, Llope W, Lomnitz M, Longacre R, Luo S, Luo X, Ma G, Ma L, Ma R, Ma Y, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis H, Matonoha O, Mazer J, Meehan K, Mei J, Minaev N, Mioduszewski S, Mishra D, Mohanty B, Mondal M, Mooney I, Morozov D, Nasim M, Negrete J, Nelson J, Nemes D, Nie M, Nigmatkulov G, Niida T, Nogach L, Nonaka T, Odyniec G, Ogawa A, Oh K, Oh S, Okorokov V, Olvitt D, Page B, Pak R, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pinter R, Pluta J, Porter J, Posik M, Pruthi N, Przybycien M, Putschke J, Quintero A, Radhakrishnan S, Ramachandran S, Ray R, Reed R, Ritter H, Roberts J, Rogachevskiy O, Romero J, Ruan L, Rusnak J, Rusnakova O, Sahoo N, Sahu P, Salur S, Sandweiss J, Schambach J, Schmah A, Schmidke W, Schmitz N, Schweid B, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan P, Shao M, Shen F, Shen W, Shi S, Shou Q, Sichtermann E, Siejka S, Sikora R, Simko M, Singh J, Singha S, Smirnov D, Smirnov N, Solyst W, Sorensen P, Spinka H, Srivastava B, Stanislaus T, Stewart D, Strikhanov M, Stringfellow B, Suaide A, Sugiura T, Sumbera M, Summa B, Sun X, Sun X, Sun Y, Surrow B, Svirida D, Szymanski P, Tang A, Tang Z, Taranenko A, Tarnowsky T, Thomas J, Timmins A, Tlusty D, Todoroki T, Tokarev M, Tomkiel C, Trentalange S, Tribble R, Tribedy P, Tripathy S, Tsai O, Tu B, Ullrich T, Underwood D, Upsal I, Van Buren G, Vanek J, Vasiliev A, Vassiliev I, Videbæk F, Vokal S, Voloshin S, Vossen A, Wang F, Wang G, Wang P, Wang Y, Wang Y, Webb J, Wen L, Westfall G, Wieman H, Wissink S, Witt R, Wu Y, Xiao Z, Xie G, Xie W, Xu J, Xu N, Xu Q, Xu Y, Xu Z, Yang C, Yang Q, Yang S, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang J, Zhang J, Zhang L, Zhang S, Zhang S, Zhang X, Zhang Y, Zhang Z, Zhao J, Zhong C, Zhou C, Zhu X, Zhu Z, Zyzak M. Improved measurement of the longitudinal spin transfer to
Λ
and
Λ¯
hyperons in polarized proton-proton collisions at
s=200 GeV. Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.98.112009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
55
|
Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Erratum: Observation of D^{0} Meson Nuclear Modifications in Au+Au Collisions at sqrt[s_{NN}]=200 GeV [Phys. Rev. Lett. 113, 142301 (2014)]. PHYSICAL REVIEW LETTERS 2018; 121:229901. [PMID: 30547623 DOI: 10.1103/physrevlett.121.229901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Indexed: 06/09/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.113.142301.
Collapse
|
56
|
Adam J, Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Ajitanand NN, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Atetalla F, Attri A, Averichev GS, Bai X, Bairathi V, Barish K, Bassill AJ, Behera A, Bellwied R, Bhasin A, Bhati AK, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Brandenburg JD, Brandin AV, Brown D, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, Dedovich TG, Deppner IM, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Dunlop JC, Efimov LG, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Federicova P, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Galatyuk T, Geurts F, Gibson A, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Guryn W, Hamad AI, Hamed A, Harlenderova A, Harris JW, He L, Heppelmann S, Heppelmann S, Herrmann N, Hirsch A, Holub L, Horvat S, Huang X, Huang B, Huang SL, Huang HZ, Huang T, Humanic TJ, Huo P, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Judd EG, Kabana S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Kikoła DP, Kim C, Kinghorn TA, Kisel I, Kisiel A, Klein SR, Kochenda L, Kosarzewski LK, Kraishan AF, Kramarik L, Krauth L, Kravtsov P, Krueger K, Kulathunga N, Kumar S, Kumar L, Kvapil J, Kwasizur JH, Lacey R, Landgraf JM, Lauret J, Lebedev A, Lednicky R, Lee JH, Li X, Li C, Li W, Li Y, Liang Y, Lidrych J, Lin T, Lipiec A, Lisa MA, Liu F, Liu P, Liu H, Liu Y, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Luo S, Ma GL, Ma YG, Ma L, Ma R, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Matonoha O, Mayes D, Mazer JA, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Mooney I, Morozov DA, Nasim M, Negrete JD, Nelson JM, Nemes DB, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Nurushev SB, Odyniec G, Ogawa A, Oh K, Oh S, Okorokov VA, Olvitt D, Page BS, Pak R, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pluta J, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Quintero A, Radhakrishnan SK, Ramachandran S, Ray RL, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Schambach J, Schmah AM, Schmidke WB, Schmitz N, Schweid BR, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Shen WQ, Shen F, Shi SS, Shou QY, Sichtermann EP, Siejka S, Sikora R, Simko M, Singha S, Smirnov N, Smirnov D, Solyst W, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stewart DJ, Strikhanov M, Stringfellow B, Suaide AAP, Sugiura T, Sumbera M, Summa B, Sun Y, Sun X, Sun XM, Surrow B, Svirida DN, Szymanski P, Tang Z, Tang AH, Taranenko A, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Tomkiel CA, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Tu B, Ullrich T, Underwood DG, Upsal I, Van Buren G, Vanek J, Vasiliev AN, Vassiliev I, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang G, Wang Y, Wang F, Wang Y, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu QH, Xu Z, Xu J, Xu YF, Xu N, Yang S, Yang C, Yang Q, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang Z, Zhang L, Zhang Y, Zhang XP, Zhang J, Zhang S, Zhang S, Zhang J, Zhao J, Zhong C, Zhou C, Zhou L, Zhu Z, Zhu X, Zyzak M. Low-p_{T} e^{+}e^{-} Pair Production in Au+Au Collisions at sqrt[s_{NN}]=200 GeV and U+U Collisions at sqrt[s_{NN}]=193 GeV at STAR. PHYSICAL REVIEW LETTERS 2018; 121:132301. [PMID: 30312102 DOI: 10.1103/physrevlett.121.132301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/30/2018] [Indexed: 06/08/2023]
Abstract
We report first measurements of e^{+}e^{-} pair production in the mass region 0.4<M_{ee}<2.6 GeV/c^{2} at low transverse momentum (p_{T}<0.15 GeV/c) in noncentral Au+Au collisions at sqrt[s_{NN}]=200 GeV and U+U collisions at sqrt[s_{NN}]=193 GeV. Significant enhancement factors, expressed as ratios of data over known hadronic contributions, are observed in the 40%-80% centrality of these collisions. The excess yields peak distinctly at low p_{T} with a width (sqrt[⟨p_{T}^{2}⟩]) between 40 and 60 MeV/c. The absolute cross section of the excess depends weakly on centrality, while those from a theoretical model calculation incorporating an in-medium broadened ρ spectral function and radiation from a quark gluon plasma or hadronic cocktail contributions increase dramatically with an increasing number of participant nucleons. Model calculations of photon-photon interactions generated by the initial projectile and target nuclei describe the observed excess yields but fail to reproduce the p_{T}^{2} distributions.
Collapse
|
57
|
Ramachandran S, Gottlieb D, Mayberry JM, Fergus CL, Mallette MF, Jenkins AE, Watson AJ, Petersen RH. Notes and Brief Articles. Mycologia 2018. [DOI: 10.1080/00275514.1962.12025038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
58
|
Gottlieb D, Ramachandran S. The Nature of Production of the Glyoxylate Pathway Enzymes in Germinating Spores of Penicillium Oxalicum (F-56). Mycologia 2018. [DOI: 10.1080/00275514.1960.12024932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
59
|
Carruthers RD, Ahmed SU, Ramachandran S, Strathdee K, Kurian KM, Hedley A, Gomez-Roman N, Kalna G, Neilson M, Gilmour L, Stevenson KH, Hammond EM, Chalmers AJ. Replication Stress Drives Constitutive Activation of the DNA Damage Response and Radioresistance in Glioblastoma Stem-like Cells. Cancer Res 2018; 78:5060-5071. [PMID: 29976574 PMCID: PMC6128404 DOI: 10.1158/0008-5472.can-18-0569] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/25/2018] [Accepted: 06/28/2018] [Indexed: 11/16/2022]
Abstract
Glioblastoma (GBM) is a lethal primary brain tumor characterized by treatment resistance and inevitable tumor recurrence, both of which are driven by a subpopulation of GBM cancer stem-like cells (GSC) with tumorigenic and self-renewal properties. Despite having broad implications for understanding GSC phenotype, the determinants of upregulated DNA-damage response (DDR) and subsequent radiation resistance in GSC are unknown and represent a significant barrier to developing effective GBM treatments. In this study, we show that constitutive DDR activation and radiation resistance are driven by high levels of DNA replication stress (RS). CD133+ GSC exhibited reduced DNA replication velocity and a higher frequency of stalled replication forks than CD133- non-GSC in vitro; immunofluorescence studies confirmed these observations in a panel of orthotopic xenografts and human GBM specimens. Exposure of non-GSC to low-level exogenous RS generated radiation resistance in vitro, confirming RS as a novel determinant of radiation resistance in tumor cells. GSC exhibited DNA double-strand breaks, which colocalized with "replication factories" and RNA: DNA hybrids. GSC also demonstrated increased expression of long neural genes (>1 Mbp) containing common fragile sites, supporting the hypothesis that replication/transcription collisions are the likely cause of RS in GSC. Targeting RS by combined inhibition of ATR and PARP (CAiPi) provided GSC-specific cytotoxicity and complete abrogation of GSC radiation resistance in vitro These data identify RS as a cancer stem cell-specific target with significant clinical potential.Significance: These findings shed new light on cancer stem cell biology and reveal novel therapeutics with the potential to improve clinical outcomes by overcoming inherent radioresistance in GBM. Cancer Res; 78(17); 5060-71. ©2018 AACR.
Collapse
|
60
|
Adam J, Adamczyk L, Adams J, Adkins J, Agakishiev G, Aggarwal M, Ahammed Z, Ajitanand N, Alekseev I, Anderson D, Aoyama R, Aparin A, Arkhipkin D, Aschenauer E, Ashraf M, Atetalla F, Attri A, Averichev G, Bai X, Bairathi V, Barish K, Bassill A, Behera A, Bellwied R, Bhasin A, Bhati A, Bielcik J, Bielcikova J, Bland L, Bordyuzhin I, Brandenburg J, Brandin A, Brown D, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell J, Cebra D, Chakaberia I, Chaloupka P, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen J, Chen X, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford H, Das S, Dedovich T, Deppner I, Derevschikov A, Didenko L, Dilks C, Dong X, Drachenberg J, Dunlop J, Efimov L, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Federicova P, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores C, Fulek L, Gagliardi C, Galatyuk T, Geurts F, Gibson A, Grosnick D, Gunarathne D, Guo Y, Gupta A, Guryn W, Hamad A, Hamed A, Harlenderova A, Harris J, He L, Heppelmann S, Heppelmann S, Herrmann N, Hirsch A, Holub L, Horvat S, Huang X, Huang B, Huang S, Huang H, Huang T, Humanic T, Huo P, Igo G, Jacobs W, Jentsch A, Jia J, Jiang K, Jowzaee S, Judd E, Kabana S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke H, Keane D, Kechechyan A, Kikoła D, Kim C, Kinghorn T, Kisel I, Kisiel A, Kochenda L, Kosarzewski L, Kraishan A, Kramarik L, Krauth L, Kravtsov P, Krueger K, Kulathunga N, Kumar S, Kumar L, Kvapil J, Kwasizur J, Lacey R, Landgraf J, Lauret J, Lebedev A, Lednicky R, Lee J, Li X, Li C, Li W, Li Y, Liang Y, Lidrych J, Lin T, Lipiec A, Lisa M, Liu F, Liu P, Liu H, Liu Y, Ljubicic T, Llope W, Lomnitz M, Longacre R, Luo X, Luo S, Ma G, Ma Y, Ma L, Ma R, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis H, Matonoha O, Mayes D, Mazer J, Meehan K, Mei J, Minaev N, Mioduszewski S, Mishra D, Mohanty B, Mondal M, Mooney I, Morozov D, Nasim M, Negrete J, Nelson J, Nemes D, Nie M, Nigmatkulov G, Niida T, Nogach L, Nonaka T, Nurushev S, Odyniec G, Ogawa A, Oh K, Oh S, Okorokov V, Olvitt D, Page B, Pak R, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pluta J, Porter J, Posik M, Pruthi N, Przybycien M, Putschke J, Quintero A, Radhakrishnan S, Ramachandran S, Ray R, Reed R, Ritter H, Roberts J, Rogachevskiy O, Romero J, Ruan L, Rusnak J, Rusnakova O, Sahoo N, Sahu P, Salur S, Sandweiss J, Schambach J, Schmah A, Schmidke W, Schmitz N, Schweid B, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan P, Shao M, Shen W, Shen F, Shi S, Shou Q, Sichtermann E, Siejka S, Sikora R, Simko M, Singha S, Smirnov N, Smirnov D, Solyst W, Sorensen P, Spinka H, Srivastava B, Stanislaus T, Stewart D, Strikhanov M, Stringfellow B, Suaide A, Sugiura T, Sumbera M, Summa B, Sun Y, Sun X, Sun X, Surrow B, Svirida D, Szymanski P, Tang Z, Tang A, Taranenko A, Tarnowsky T, Thomas J, Timmins A, Tlusty D, Todoroki T, Tokarev M, Tomkiel C, Trentalange S, Tribble R, Tribedy P, Tripathy S, Tsai O, Tu B, Ullrich T, Underwood D, Upsal I, Van Buren G, Vanek J, Vasiliev A, Vassiliev I, Videbæk F, Vokal S, Voloshin S, Vossen A, Wang G, Wang Y, Wang F, Wang Y, Webb J, Wen L, Westfall G, Wieman H, Wissink S, Witt R, Wu Y, Xiao Z, Xie G, Xie W, Xu Q, Xu Z, Xu J, Xu Y, Xu N, Yang S, Yang C, Yang Q, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang Z, Zhang L, Zhang Y, Zhang X, Zhang J, Zhang S, Zhang S, Zhang J, Zhao J, Zhong C, Zhou C, Zhou L, Zhu Z, Zhu X, Zyzak M. Longitudinal double-spin asymmetries for
π0s
in the forward direction for 510 GeV polarized
pp
collisions. Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.98.032013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
61
|
Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Ajitanand NN, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Attri A, Averichev GS, Bai X, Bairathi V, Barish K, Behera A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg JD, Brandin AV, Brown D, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Dunkelberger LE, Dunlop JC, Efimov LG, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Federicova P, Fedorisin J, Feng Z, Filip P, Finch E, Fisyak Y, Flores CE, Fujita J, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Grosnick D, Gunarathne DS, Guo Y, Gupta S, Gupta A, Guryn W, Hamad AI, Hamed A, Harlenderova A, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Horvat S, Huang X, Huang HZ, Huang T, Huang B, Humanic TJ, Huo P, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Judd EG, Kabana S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Khan Z, Kikoła DP, Kim C, Kisel I, Kisiel A, Kochenda L, Kocmanek M, Kollegger T, Kosarzewski LK, Kraishan AF, Krauth L, Kravtsov P, Krueger K, Kulathunga N, Kumar L, Kvapil J, Kwasizur JH, Lacey R, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li W, Li Y, Li X, Lidrych J, Lin T, Lisa MA, Liu P, Liu F, Liu H, Liu Y, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Luo S, Ma GL, Ma L, Ma YG, Ma R, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Meehan K, Mei JC, Miller ZW, Minaev NG, Mioduszewski S, Mishra D, Mizuno S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nasim M, Nayak TK, Nelson JM, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov VA, Olvitt D, Page BS, Pak R, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pile P, Pluta J, Poniatowska K, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Qiu H, Quintero A, Ramachandran S, Ray RL, Reed R, Rehbein MJ, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roth JD, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Sangaline E, Saur M, Schambach J, Schmah AM, Schmidke WB, Schmitz N, Schweid BR, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma MK, Sharma A, Shen WQ, Shi Z, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov D, Smirnov N, Solyst W, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Strikhanov M, Stringfellow B, Sugiura T, Sumbera M, Summa B, Sun XM, Sun Y, Sun X, Surrow B, Svirida DN, Tang AH, Tang Z, Taranenko A, Tarnowsky T, Tawfik A, Thäder J, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vasiliev AN, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang F, Wang Y, Wang G, Wang Y, Webb JC, Webb G, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu Z, Xu N, Xu YF, Xu QH, Xu J, Yang Q, Yang C, Yang S, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang XP, Zhang S, Zhang JB, Zhang J, Zhang Z, Zhang S, Zhang J, Zhang Y, Zhao J, Zhong C, Zhou L, Zhou C, Zhu Z, Zhu X, Zyzak M. Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV. PHYSICAL REVIEW LETTERS 2018; 121:032301. [PMID: 30085817 DOI: 10.1103/physrevlett.121.032301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 03/29/2018] [Indexed: 06/08/2023]
Abstract
We report measurements of the nuclear modification factor R_{CP} for charged hadrons as well as identified π^{+(-)}, K^{+(-)}, and p(p[over ¯]) for Au+Au collision energies of sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV. We observe a clear high-p_{T} net suppression in central collisions at 62.4 GeV for charged hadrons which evolves smoothly to a large net enhancement at lower energies. This trend is driven by the evolution of the pion spectra but is also very similar for the kaon spectra. While the magnitude of the proton R_{CP} at high p_{T} does depend on the collision energy, neither the proton nor the antiproton R_{CP} at high p_{T} exhibit net suppression at any energy. A study of how the binary collision-scaled high-p_{T} yield evolves with centrality reveals a nonmonotonic shape that is consistent with the idea that jet quenching is increasing faster than the combined phenomena that lead to enhancement.
Collapse
|
62
|
Ramachandran S, Strange RC, Fryer AA, Saad F, Hackett GI. The association of sex hormone-binding globulin with mortality is mediated by age and testosterone in men with type 2 diabetes. Andrology 2018; 6:846-853. [PMID: 30006962 DOI: 10.1111/andr.12520] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/06/2018] [Accepted: 06/12/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Serum sex hormone-binding globulin levels have been associated with mortality in adult men with type 2 diabetes (T2DM). OBJECTIVES To confirm the association of serum sex hormone-binding globulin with mortality and then determine whether this association is mediated by age and total testosterone concentration. MATERIALS AND METHODS We studied 364 men (median age: 66 years) with T2DM over a median follow-up of 4.3 years using the Cox regression to study associations between sex hormone-binding globulin, age, total testosterone, and mortality. RESULTS Mortality was significantly and independently associated with sex hormone-binding globulin, age, and total testosterone. In pairwise combinations of age and sex hormone-binding globulin dichotomized by median values, the association of sex hormone-binding globulin with mortality was age-dependent. Relative to the combination of age >66 years/SHBG >35 nmol/L (mortality 22.5%), the other combinations were associated with significantly less mortality (mortality in men ≤66 years/SHBG ≤ 35 nmol/L was 3.23%). In men >66 years, SHBG ≤ 35 nmol/L was associated with decreased mortality (HR: 0.41, p = 0.037) compared with SHBG > 35 nmol/L. In men ≤66 years, there was no significant difference between those with sex hormone-binding globulin above or below the median (HR: 1.73, p = 0.56, reference: SHBG ≤ 35 nmol/L). TT < 12 nmol/L was associated with increased mortality in both age categories. Men >66 years with the reference combination of SHBG > 35 nmol/L and TT < 12 nmol/L (36.84%) nmol/L had significantly higher mortality than those with SHBG > 35 nmol/L and TT ≥ 12 (18.06%) and those with SHBG ≤ 35 nmol/L and TT < 12 nmol/L (13.79%). DISCUSSION Our data suggest sex hormone-binding globulin and total testosterone have particular impact on mortality in men aged over 66 years. Further, in older men, the combination of high sex hormone-binding globulin levels and low total testosterone is associated with greater risk than either high sex hormone-binding globulin or low total testosterone individually. CONCLUSIONS Our findings are compatible with data suggesting the importance of sex hormone-binding globulin lies in mediating free testosterone levels.
Collapse
|
63
|
Ramachandran S, Strange R, Fryer A, Hackett G. 243 The association of sex hormone binding globulin with mortality is mediated by age in men with type 2 diabetes. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
64
|
Sigmund EE, Baete SH, Luo T, Patel K, Wang D, Rossi I, Duarte A, Bruno M, Mossa D, Femia A, Ramachandran S, Stoffel D, Babb JS, Franks AG, Bencardino J. MRI assessment of the thigh musculature in dermatomyositis and healthy subjects using diffusion tensor imaging, intravoxel incoherent motion and dynamic DTI. Eur Radiol 2018; 28:5304-5315. [DOI: 10.1007/s00330-018-5458-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/23/2018] [Accepted: 04/03/2018] [Indexed: 12/20/2022]
|
65
|
Sakellakis M, Ramachandran S, Zhang X, Logothetis C, Titus M. PO-017 Androgen deprivation and oxidative phosporylation inhibition pose synergistic antitumor effects in subsets of prostate tumours in vitro. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
66
|
Sakellakis M, Ramachandran S, Efstathiou E, Mao X, Hoang A, Navone N, Logothetis C, Titus M. PO-259 Identification of a clinically meaningful site-specific steroid roadmap in prostate cancer. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
67
|
Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Ajitanand NN, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Attri A, Averichev GS, Bai X, Bairathi V, Barish K, Behera A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg JD, Brandin AV, Brown D, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen X, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Dedovich TG, Deng J, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Dunkelberger LE, Dunlop JC, Efimov LG, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Federicova P, Fedorisin J, Feng Z, Filip P, Finch E, Fisyak Y, Flores CE, Fujita J, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Hamad AI, Hamed A, Harlenderova A, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Horvat S, Huang X, Huang B, Huang T, Huang HZ, Humanic TJ, Huo P, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Judd EG, Kabana S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Khan Z, Kikoła DP, Kim C, Kisel I, Kisiel A, Kochenda L, Kocmanek M, Kollegger T, Kosarzewski LK, Kraishan AF, Krauth L, Kravtsov P, Krueger K, Kulathunga N, Kumar L, Kvapil J, Kwasizur JH, Lacey R, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li X, Li Y, Li W, Lidrych J, Lin T, Lisa MA, Liu P, Liu H, Liu Y, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo S, Luo X, Ma YG, Ma L, Ma R, Ma GL, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Meehan K, Mei JC, Miller ZW, Minaev NG, Mioduszewski S, Mishra D, Mizuno S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nasim M, Nayak TK, Nelson JM, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov VA, Olvitt D, Page BS, Pak R, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pile P, Pluta J, Poniatowska K, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Qiu H, Quintero A, Ramachandran S, Ray RL, Reed R, Rehbein MJ, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roth JD, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Saur M, Schambach J, Schmah AM, Schmidke WB, Schmitz N, Schweid BR, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma A, Sharma MK, Shen WQ, Shi SS, Shi Z, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov N, Smirnov D, Solyst W, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Strikhanov M, Stringfellow B, Suaide AAP, Sugiura T, Sumbera M, Summa B, Sun Y, Sun XM, Sun X, Surrow B, Svirida DN, Tang Z, Tang AH, Taranenko A, Tarnowsky T, Tawfik A, Thäder J, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vasiliev AN, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang G, Wang Y, Wang F, Wang Y, Webb JC, Webb G, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu J, Xu Z, Xu QH, Xu YF, Xu N, Yang S, Yang Y, Yang C, Yang Q, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang Z, Zhang JB, Zhang J, Zhang S, Zhang Y, Zhang XP, Zhang J, Zhang S, Zhao J, Zhong C, Zhou C, Zhou L, Zhu X, Zhu Z, Zyzak M. Beam-Energy Dependence of Directed Flow of Λ, Λ[over ¯], K^{±}, K_{s}^{0}, and ϕ in Au+Au Collisions. PHYSICAL REVIEW LETTERS 2018; 120:062301. [PMID: 29481217 DOI: 10.1103/physrevlett.120.062301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Indexed: 06/08/2023]
Abstract
Rapidity-odd directed-flow measurements at midrapidity are presented for Λ, Λ[over ¯], K^{±}, K_{s}^{0}, and ϕ at sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV in Au+Au collisions recorded by the Solenoidal Tracker detector at the Relativistic Heavy Ion Collider. These measurements greatly expand the scope of data available to constrain models with differing prescriptions for the equation of state of quantum chromodynamics. Results show good sensitivity for testing a picture where flow is assumed to be imposed before hadron formation and the observed particles are assumed to form via coalescence of constituent quarks. The pattern of departure from a coalescence-inspired sum rule can be a valuable new tool for probing the collision dynamics.
Collapse
|
68
|
Carruthers R, Ahmed S, Ramachandran S, Hammond E, Chalmers A. Replication stress drives constitutive activation of the DNA damage response and consequent radioresistance in glioblastoma cancer stem cells. Neuro Oncol 2018. [DOI: 10.1093/neuonc/nox237.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
69
|
Sudhakar S, Kirthika V, Padmanabhan K, Ramachandran S, Kumar M. Efficacy of combined proprioceptive exercises and conventional physiotherapy in patients with knee osteoarthritis: A double-blinded two-group pretest–posttest design. JOURNAL OF ORTHOPEDICS, TRAUMATOLOGY AND REHABILITATION 2018. [DOI: 10.4103/jotr.jotr_40_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
70
|
Ramachandran S, Sudhakar S, Thaslim F, Kirthika SV, Padmanabhan K, Samuel AJ. Beware! Reduced Functional Capacity and Quality of Life with Increased Fatigue Level among the Breast Cancer Survivors Undergoing Chemotherapy in India. Indian J Palliat Care 2018; 24:117-118. [PMID: 29440820 PMCID: PMC5801618 DOI: 10.4103/ijpc.ijpc_170_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
71
|
Sudhakar S, Kirthika SV, Padmanabhan K, Senthil Nathan CV, Ramachandran S. Efficacy of progressive relaxation technique and yoga in patients with stress-induced asthma: A randomized controlled trial. MULLER JOURNAL OF MEDICAL SCIENCES AND RESEARCH 2018. [DOI: 10.4103/mjmsr.mjmsr_36_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
72
|
Gulistan A, Ghosh S, Ramachandran S, Rahman BMA. Efficient strategy to increase higher order inter-modal stability of a step index multimode fiber. OPTICS EXPRESS 2017; 25:29714-29723. [PMID: 29221008 DOI: 10.1364/oe.25.029714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 11/07/2017] [Indexed: 06/07/2023]
Abstract
We demonstrate a novel approach to enhance the mode stability through increased effective index difference (Δneff) between the higher-order modes (LP18, LP09 and LP19) of a multimode fiber. Fibers with large diameters have bigger effective mode areas (Aeff) and can be useful for high power lasers and amplifiers. However, a large mode area (LMA) results in an increased number of modes that can be more susceptible to mode coupling. The modal effective index difference (Δneff) strongly correlates with mode stability and this increases as the modal order (m) increases. We report here that the mode spacing between the higher order modes can be further enhanced by introducing doped concentric rings in the core. In our work, we have shown a more than 35% increase in the mode spacing between the higher order modes by optimizing the doping profile of a LMA fiber. The proposed design technique is also scalable and can be applied to improve the mode spacing between different higher order modes and their neighboring antisymmetric modes, as necessary.
Collapse
|
73
|
Pidishety S, Pachava S, Gregg P, Ramachandran S, Brambilla G, Srinivasan B. Orbital angular momentum beam excitation using an all-fiber weakly fused mode selective coupler. OPTICS LETTERS 2017; 42:4347-4350. [PMID: 29088160 DOI: 10.1364/ol.42.004347] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
Orbital angular momentum beam excitation through direct phase-matched coupling is experimentally demonstrated using an all-fiber weakly fused mode selective coupler consisting of a single-mode fiber and a ring-core fiber. Experimental results showing the excited OAM mode purity of up to 75% measured through the standard ring technique not only demonstrate the proof of concept but also provide a baseline for further improvement.
Collapse
|
74
|
Dobrynin G, McAllister TE, Leszczynska KB, Ramachandran S, Krieg AJ, Kawamura A, Hammond EM. KDM4A regulates HIF-1 levels through H3K9me3. Sci Rep 2017; 7:11094. [PMID: 28894274 PMCID: PMC5593970 DOI: 10.1038/s41598-017-11658-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/25/2017] [Indexed: 01/11/2023] Open
Abstract
Regions of hypoxia (low oxygen) occur in most solid tumours and cells in these areas are the most aggressive and therapy resistant. In response to decreased oxygen, extensive changes in gene expression mediated by Hypoxia-Inducible Factors (HIFs) contribute significantly to the aggressive hypoxic tumour phenotype. In addition to HIFs, multiple histone demethylases are altered in their expression and activity, providing a secondary mechanism to extend the hypoxic signalling response. In this study, we demonstrate that the levels of HIF-1α are directly controlled by the repressive chromatin mark, H3K9me3. In conditions where the histone demethylase KDM4A is depleted or inactive, H3K9me3 accumulates at the HIF-1α locus, leading to a decrease in HIF-1α mRNA and a reduction in HIF-1α stabilisation. Loss of KDM4A in hypoxic conditions leads to a decreased HIF-1α mediated transcriptional response and correlates with a reduction in the characteristics associated with tumour aggressiveness, including invasion, migration, and oxygen consumption. The contribution of KDM4A to the regulation of HIF-1α is most robust in conditions of mild hypoxia. This suggests that KDM4A can enhance the function of HIF-1α by increasing the total available protein to counteract any residual activity of prolyl hydroxylases.
Collapse
|
75
|
Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Attri A, Averichev GS, Bai X, Bairathi V, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg JD, Brandin AV, Brown D, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang Z, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Finch E, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Hamad AI, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Horvat S, Huang X, Huang B, Huang HZ, Huang T, Huck P, Humanic TJ, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan Z, Kikoła DP, Kisel I, Kisiel A, Kochenda L, Koetke DD, Kosarzewski LK, Kraishan AF, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li W, Li X, Li X, Li Y, Li C, Lin T, Lisa MA, Liu Y, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Luo S, Ma GL, Ma L, Ma R, Ma YG, Magdy N, Majka R, Manion A, Margetis S, Markert C, Matis HS, McDonald D, McKinzie S, Meehan K, Mei JC, Miller ZW, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nasim M, Nayak TK, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov VA, Olvitt D, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pile P, Pluta J, Poniatowska K, Porter J, Posik M, Poskanzer AM, Pruthi NK, Przybycien M, Putschke J, Qiu H, Quintero A, Ramachandran S, Ray RL, Reed R, Rehbein MJ, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roth JD, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma MK, Sharma A, Sharma B, Shen WQ, Shi SS, Shi Z, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov D, Smirnov N, Solyst W, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sugiura T, Sumbera M, Summa B, Sun XM, Sun Z, Sun Y, Surrow B, Svirida DN, Tang Z, Tang AH, Tarnowsky T, Tawfik A, Thäder J, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vasiliev AN, Vertesi R, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang F, Wang JS, Wang G, Wang Y, Wang Y, Webb G, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xin K, Xu QH, Xu H, Xu YF, Xu Z, Xu J, Xu N, Yang S, Yang Q, Yang Y, Yang C, Yang Y, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang XP, Zhang J, Zhang J, Zhang Z, Zhang S, Zhang JB, Zhang Y, Zhang S, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Dijet imbalance measurements in Au+Au and pp collisions at sqrt[s_{NN}]=200 GeV at STAR. PHYSICAL REVIEW LETTERS 2017; 119:062301. [PMID: 28949601 DOI: 10.1103/physrevlett.119.062301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Indexed: 06/07/2023]
Abstract
We report the first dijet transverse momentum asymmetry measurements from Au+Au and pp collisions at RHIC. The two highest-energy back-to-back jets reconstructed from fragments with transverse momenta above 2 GeV/c display a significantly higher momentum imbalance in heavy-ion collisions than in the pp reference. When reexamined with correlated soft particles included, we observe that these dijets then exhibit a unique new feature-momentum balance is restored to that observed in pp for a jet resolution parameter of R=0.4, while rebalancing is not attained with a smaller value of R=0.2.
Collapse
|