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Found 37769 matches. Displaying 5281-5290
Zhu SJ, Stein RA, Yoshioka C, Lee CH, Goehring A, Mchaourab HS, Gouaux E
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Mechanism of NMDA Receptor Inhibition and Activation
CELL 2016 APR 21; 165(3):704-714
N-methyl-D-aspartate receptors (NMDARs) are gluta-mate-gated, calcium-permeable ion channels that mediate synaptic transmission and underpin learning and memory. NMDAR dysfunction is directly implicated in diseases ranging from seizure to ischemia. Despite its fundamental importance, little is known about how the NMDAR transitions between inactive and active states and how small molecules inhibit or activate ion channel gating. Here, we report electron cryo-microscopy structures of the GluN1-GluN2B NMDA receptor in an ensemble of competitive antagonist-bound states, an agonist-bound form, and a state bound with agonists and the allosteric inhibitor Ro25-6981. Together with double electron-electron resonance experiments, we show how competitive antagonists rupture the ligand binding domain (LBD) gating "ring,'' how agonists retain the ring in a dimer-of- dimers configuration, and how allosteric inhibitors, acting within the amino terminal domain, further stabilize the LBD layer. These studies illuminate how the LBD gating ring is fundamental to signal transduction and gating in NMDARs.
Jia MX, Lu H, Markowitz M, Cheng-Mayer C, Wu XL
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Development of Broadly Neutralizing Antibodies and Their Mapping by Monomeric gp120 in Human Immunodeficiency Virus Type 1-Infected Humans and Simian-Human Immunodeficiency Virus SHIVSF162P3N-Infected Macaques
JOURNAL OF VIROLOGY 2016 APR; 90(8):4017-4031
To improve our understanding of the similarities and differences between neutralizing antibodies elicited by simian-human immunodeficiency virus (SHIV)-infected rhesus macaques and human immunodeficiency virus type 1 (HIV-1)-infected humans, we examined the plasma of 13 viremic macaques infected with SHIVSF162P3N and 85 HIV-1-infected humans with known times of infection. We identified 5 macaques (38%) from 1 to 2 years postinfection (p.i.) with broadly neutralizing antibodies (bnAbs) against tier 2 HIV-1. In comparison, only 2 out of 42 (5%) human plasma samples collected in a similar time frame of 1 to 3 years p.i. exhibited comparable neutralizing breadths and potencies, with the number increasing to 7 out of 21 (30%) after 3 years p.i. Plasma mapping with monomeric gp120 identified only 2 out of 9 humans and 2 out of 4 macaques that contained gp120-reactive neutralizing antibodies, indicating distinct specificities in these plasma samples, with most of them recognizing the envelope trimer (including gp41) rather than the gp120 monomer. Indeed, a total of 20 gp120-directed monoclonal antibodies (MAbs) isolated from a human subject (AD358) and a Chinese rhesus macaque (GB40) displayed no or limited neutralizing activity against tier 2 strains. These isolated MAbs, mapped to the CD4-binding site, the V3 loop, the inner domain, and the C5 region of gp120, revealed genetic similarity between the human and macaque immunoglobulin genes used to encode some V3-directed MAbs. These results also support the use of envelope trimer probes for efficient isolation of HIV-1 bnAbs. IMPORTANCE HIV-1 vaccine research can benefit from understanding the development of broadly neutralizing antibodies (bnAbs) in rhesus macaques, commonly used to assess vaccine immunogenicity and efficacy. Here, we examined 85 HIV-1-infected humans and 13 SHIVSF162P3N-infected macaques for bnAbs and found that, similar to HIV-1-infected humans, bnAbs in SHIV-infected macaques are also rare, but their development might have been faster in some of the studied macaques. Plasma mapping with monomeric gp120 indicated that most bnAbs bind to the envelope trimer rather than the gp120 monomer. In support of this, none of the isolated gp120-reactive monoclonal antibodies (MAbs) displayed the neutralization breadth observed in the corresponding plasma. However, the MAb sequences revealed similarity between human and macaque genes used to encode some V3-directed MAbs. Our study sheds light on the timing and development of bnAbs in SHIV-infected macaques in comparison to HIV-1-infected humans and highlights the use of envelope trimer probes for efficient recovery of bnAbs.
Rahi SJ, Pecani K, Ondracka A, Oikonomou C, Cross FR
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The CDK-APC/C Oscillator Predominantly Entrains Periodic Cell-Cycle Transcription
CELL 2016 APR 7; 165(2):475-487
Throughout cell-cycle progression, the expression of multiple transcripts oscillate, and whether these are under the centralized control of the CDK-APC/C proteins or can be driven by a de-centralized transcription factor (TF) cascade is a fundamental question for understanding cell-cycle regulation. In budding yeast, we find that the transcription of nearly all genes, as assessed by RNA-seq or fluorescence microscopy in single cells, is dictated by CDK-APC/C. Three exceptional genes are transcribed in a pulsatile pattern in a variety of CDK-APC/C arrests. Pursuing one of these transcripts, the SIC1 inhibitor of B-type cyclins, we use a combination of mathematical modeling and experimentation to provide evidence that, counter-intuitively, Sic1 provides a failsafe mechanism promoting nuclear division when levels of mitotic cyclins are low.
Sreetama SC, Takano T, Nedergaard M, Simon SM, Jaiswal JK
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Injured astrocytes are repaired by Synaptotagmin XI-regulated lysosome exocytosis
CELL DEATH AND DIFFERENTIATION 2016 APR; 23(4):596-607
Astrocytes are known to facilitate repair following brain injury; however, little is known about how injured astrocytes repair themselves. Repair of cell membrane injury requires Ca2+-triggered vesicle exocytosis. In astrocytes, lysosomes are the main Ca2+-regulated exocytic vesicles. Here we show that astrocyte cell membrane injury results in a large and rapid calcium increase. This triggers robust lysosome exocytosis where the fusing lysosomes release all luminal contents and merge fully with the plasma membrane. In contrast to this, receptor stimulation produces a small sustained calcium increase, which is associated with partial release of the lysosomal luminal content, and the lysosome membrane does not merge into the plasma membrane. In most cells, lysosomes express the synaptotagmin (Syt) isoform Syt VII; however, this isoform is not present on astrocyte lysosomes and exogenous expression of Syt VII on lysosome inhibits their exocytosis. Deletion of one of the most abundant Syt isoform in astrocyte - Syt XI - suppresses astrocyte lysosome exocytosis. This identifies lysosome as Syt XI-regulated exocytic vesicle in astrocytes. Further, inhibition of lysosome exocytosis (by Syt XI depletion or Syt VII expression) prevents repair of injured astrocytes. These results identify the lysosomes and Syt XI as the sub-cellular and molecular regulators, respectively of astrocyte cell membrane repair.
Jin K, Su KK, Li T, Zhu XQ, Wang Q, Ge RS, Pan ZF, Wu BW, Ge LJ, Zhang YH, Wang YF, Shen GF, Zhu DY, Xiang CS, Li LJ, Lou YJ
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Hepatic Premalignant Alterations Triggered by Human Nephrotoxin Aristolochic Acid I in Canines
CANCER PREVENTION RESEARCH 2016 APR; 9(4):324-334
Aristolochic acid I (AM) existing in plant drugs from Aristolochia species is an environmental human carcinogen associated with urothelial cancer. Although gene association network analysis demonstrated gene expression profile changes in the liver of human T253 knock-in mice after acute AAI exposure, to date, whether AM causes hepatic tumorigenesis is still not confirmed. Here, we show that hepatic premalignant alterations appeared in canines after a 10 -day AAI oral administration (3 mg/kg/day). We observed c-Myc oncoprotein and oncofeta] RNA-binding protein Lin28B overexpressions accompanied by cancer progenitor-like cell formation in the liver by AM exposure, Meanwhile, we found that forkhead box 01 (FOXO1) was robustly phosphorylated, thereby shuttling into the cytoplasm of hepatocytes. Furthermore, utilizing microarray and qRT-PCR analysis, we confirmed that microRNA expression significantly dysregulated hi the liver treated with AAI. Among them, we particularly focused on the members in let-7 miRNAs and rniR23a clusters, the downstream of c-Myc and 1L6 receptor (IL6R,611) signaling pathway linking the premalignant alteration. Strikingly, when IL6 was added in vitro, 11,614,/111NF-kappa B signaling activation contributed to the increase of FOXO1 phosphorylalion by the let -7b inhibitor. Therefore, it highlights the new insight into the interplay of the network in hepatic turnorigenesis by AA1 exposure, and also suggests that anti-premalignant therapy may be crucial for preventing AAI-induced hepatocarcinogenesis. Cancer Prev Res (C) 2016 AACR
Li YY, Sabari BR, Panchenko T, Wen H, Zhao D, Guan HP, Wan LL, Huang H, Tang ZY, Zhao YM, Roeder RG, Shi XB, Allis CD, Li HT
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Molecular Coupling of Histone Crotonylation and Active Transcription by AF9 YEATS Domain
MOLECULAR CELL 2016 APR 21; 62(2):181-193
Recognition of histone covalent modifications by chromatin-binding protein modules ("readers") constitutes a major mechanism for epigenetic regulation, typified by bromodomains that bind acetyllysine. Non-acetyl histone lysine acylations (e.g., crotonylation, butyrylation, propionylation) have been recently identified, but readers that prefer these acylations have not been characterized. Here we report that the AF9 YEATS domain displays selectively higher binding affinity for crotonyllysine over acetyllysine. Structural studies revealed an extended aromatic sandwiching cage with crotonyl specificity arising from pi-aromatic and hydrophobic interactions between crotonyl and aromatic rings. These features are conserved among the YEATS, but not the bromodomains. Using a cell-based model, we showed that AF9 co-localizes with crotonylated histone H3 and positively regulates gene expression in a YEATS domain-dependent manner. Our studies define the evolutionarily conserved YEATS domain as a family of crotonyllysine readers and specifically demonstrate that the YEATS domain of AF9 directly links histone crotonylation to active transcription.
Fourel G, Flajolet M
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Just like a fish in water Oliver Sacks (1933-2015) an hommage On the importance of swimming from infancy
M S-MEDECINE SCIENCES 2016 APR; 32(4):408-411
Birsoy K, Sabatini DM
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A Different Way of Doing Things
SCIENTIST 2016 APR; 30(4):47-51
Khachatryan V, Sirunyan AM, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Ero J, Friedl M, Fruhwirth R, Ghete VM, Hartl C, Hormann N, Hrubec J, Jeitler M, Kiesenhofer W, Knunz V, Krammer M, Kratschmer I, Liko D, Mikulec I, Rabady D, Rahbaran B, Rohringer H, Schofbeck R, Strauss J, Treberer-Treberspurg W, Waltenberger W, Wulz CE, Mossolov V, Shumeiko N, Gonzalez JS, Alderweireldt S, Bansal M, Bansal S, Cornelis T, De Wolf EA, Janssen X, Knutsson A, Lauwers J, Luyckx S, Ochesanu S, Rougny R, Van De Klundert M, Van Haevermaet H, Van Mechelen P, Van Remortel N, Van Spilbeeck A, Van Remortel N, Van Spilbeeck A, Blekman F, Blyweert S, D'Hondt J, Daci N, Heracleous N, Keaveney J, Lowette S, Maes M, Olbrechts A, Python Q, Strom D, Tavernier S, Van Doninck W, Van Mulders P, Van Onsem GP, Villella I, Caillol C, Clerbaux B, De Lentdecker G, Dobur D, Favart L, Gay APR, Grebenyuk A, Leonard A, Mohammadi A, Pernie L, Reis T, Seva T, Thomas L, Velde CV, Vanlaer P, Wang J, Zenoni F, Adler V, Beernaert K, Benucci L, Cimmino A, Costantini S, Crucy S, Dildick S, Fagot A, Garcia G, Mccartin J, Rios AAO, Ryckbosch D, Diblen SS, Sigamani M, Strobbe N, Thyssen F, Tytgat M, Yazgan E, Zaganidis N, Basegmez S, Beluffi C, Bruno G, Castello R, Caudron A, Ceard L, Da Silveira GG, Delaere C, du Pree T, Favart D, Forthomme L, Giammanco A, Hollar J, Jafari A, Jez P, Komm M, Lemaitre V, Nuttens C, Pagano D, Perrini L, Pin A, Piotrzkowski K, Popov A, Quertenmont L, Selvaggi M, Marono MV, Garcia JMV, Beliy N, Caebergs T, Daubie E, Hammad GH, Alda WL, Alves GA, Brito L, Martins MC, Martins TD, Herrera CM, Pol ME, Carvalho W, Chinellato J, Custodio A, Da Costa EM, Damiao DD, Martins CD, De Souza SF, Malbouisson H, Figueiredo DM, Mundim L, Nogima H, Da Silva WLP, Santaolalla J, Santoro A, Sznajder A, Manganote EJT, Pereira AV, Bernardes CA, Dogra S, Tomei TRFP, Gregores EM, Mercadante PG, Novaes SF, Padula SS, Aleksandrov A, Genchev V, Iaydjiev P, Marinov A, Piperov S, Rodozov M, Sultanov G, Vutova M, Dimitrov A, Glushkov I, Hadjiiska R, Litov L, Pavlov B, Petkov P, Bian JG, Chen GM, Chen HS, Chen M, Cheng T, Du R, Jiang CH, Plestina R, Romeo F, Tao J, Wang Z, Asawatangtrakuldee C, Ban Y, Li Q, Liu S, Mao Y, Qian SJ, Wang D, Zou W, Avila C, Sierra LFC, Florez C, Gomez JP, Moreno BG, Sanabria JC, Godinovic N, Lelas D, Polic D, Puljak I, Antunovic Z, Kovac M, Brigljevic V, Kadija K, Luetic J, Mekterovic D, Sudic L, Attikis A, Mavromanolakis G, Mousa J, Nicolaou C, Ptochos F, Razis PA, Bodlak M, Finger M, Finger M, Assran Y, Elgammal S, Mahmoud MA, Radi A, Kadastik M, Murumaa M, Raidal M, Tiko A, Eerola P, Fedi G, Voutilainen M, Harkonen J, Karimaki V, Kinnunen R, Kortelainen MJ, Lampen T, Lassila-Perini K, Lehti S, Linden T, Luukka P, Maenpaa T, Peltola T, Tuominen E, Tuominiemi J, Tuovinen E, Wendland L, Talvitie J, Tuuva T, Besancon M, Couderc F, Dejardin M, Denegri D, Fabbro B, Faure JL, Favaro C, Ferri F, Ganjour S, Givernaud A, Gras P, de Monchenault GH, Jarry P, Locci E, Malcles J, Neveu J, Rander J, Rosowsky A, Titov M, Baffioni S, Beaudette F, Busson P, Charlot C, Dahms T, Dalchenko M, Dobrzynski L, Filipovic N, Florent A, de Cassagnac RG, Mastrolorenzo L, Mine P, Mironov C, Naranjo IN, Nguyen M, Ochando C, Paganini P, Regnard S, Salerno R, Sauvan JB, Sirois Y, Veelken C, Yilmaz Y, Zabi A, Agram JL, Andrea J, Aubin A, Bloch D, Brom JM, Chabert EC, Collard C, Conte E, Fontaine JC, Gele D, Goerlach U, Goetzmann C, Le Bihan AC, Van Hove P, Gadrat S, Beauceron S, Beaupere N, Boudoul G, Bouvier E, Brochet S, Montoya CAC, Chasserat J, Chierici R, Contardo D, Depasse P, El Mamouni H, Fan J, Fay J, Gascon S, Gouzevitch M, Ille B, Kurca T, Lethuillier M, Mirabito L, Perries S, Alvarez JDR, Sabes D, Sgandurra L, Sordini V, Donckt MV, Verdier P, Viret S, Xiao H, Rurua L, Autermann C, Beranek S, Bontenackels M, Edelhoff M, Feld L, Heister A, Hindrichs O, Klein K, Ostapchuk A, Raupach F, Sammet J, Schael S, Weber H, Wittmer B, Zhukov V, Ata M, Brodski M, Dietz-Laursonn E, Duchardt D, Erdmann M, Fischer R, Guth A, Hebbeker T, Heidemann C, Hoepfner K, Klingebiel D, Knutzen S, Kreuzer P, Merschmeyer M, Meyer A, Millet P, Olschewski M, Padeken K, Papacz P, Reithler H, Schmitz SA, Sonnenschein L, Teyssier D, Thuer S, Weber M, Cherepanov V, Erdogan Y, Flugge G, Geenen H, Geisler M, Ahmad WH, Hoehle F, Kargoll B, Kress T, Kuessel Y, Kuunsken A, Lingemann J, Nowack A, Nugent IM, Perchalla L, Pooth O, Stahl A, Asin I, Bartosik N, Behr J, Behrenhoff W, Behrens U, Bell AJ, Bergholz M, Bethani A, Borras K, Burgmeier A, Cakir A, Calligaris L, Campbell A, Choudhury S, Costanza F, Pardos CD, Dolinska G, Dooling S, Dorland T, Eckerlin G, Eckstein D, Eichhorn T, Flucke G, Garcia JG, Geiser A, Gunnellini P, Hauk J, Hempel M, Horton D, Jung H, Kalogeropoulos A, Kasemann M, Katsas P, Kieseler J, Kleinwort C, Korol I, Krucker D, Lange W, Leonard J, Lipka K, Lobanov A, Lohmann W, Lutz B, Mankel R, Marfin I, Melzer-Pellmann IA, Meyer AB, Mittag G, Mnich J, Mussgiller A, Naumann-Emme S, Nayak A, Novgorodova O, Ntomari E, Perrey H, Pitzl D, Placakyte R, Raspereza A, Cipriano PMR, Roland B, Ron E, Sahin MO, Salfeld-Nebgen J, Saxena P, Schmidt R, Schoerner-Sadenius T, Schroder M, Seitz C, Spannagel S, Vargas Trevino ADR, Walsh R, Wissing C, Martin MA, Blobel V, Vignali MC, Draeger AR, Erfle J, Garutti E, Goebel K, Gorner M, Haller J, Hoffmann M, Hooing RS, Kirschenmann H, Klanner R, Kogler R, Lange J, Lapsien T, Lenz T, Marchesini I, Ott J, Peiffer T, Perieanu A, Pietsch N, Poehlsen J, Poehlsen T, Rathjens D, Sander C, Schettler H, Schleper P, Schlieckau E, Schmidt A, Seidel M, Sola V, Stadie H, Steinbruck G, Troendle D, Usai E, Vanelderen L, Vanhoefer A, Barth C, Baus C, Berger J, Boser C, Butz E, Chwalek T, De Boer W, Descroix A, Dierlamm A, Frensch F, Giffels M, Gilbert A, Hartmann F, Hauth T, Husemann U, Katkov I, Kornmayer A, Kuznetsova E, Pardo PL, Mozer MU, Muller T, Nurnberg A, Quast G, Rabbertz K, Rocker S, Simonis HJ, Stober FM, Ulrich R, Wagner-Kuhr J, Wayand S, Weiler T, Wolf R, Anagnostou G, Daskalakis G, Geralis T, Giakoumopoulou VA, Kyriakis A, Loukas D, Markou A, Markou C, Psallidas A, Topsis-Giotis I, Agapitos A, Kesisoglou S, Panagiotou A, Saoulidou N, Stiliaris E, Aslanoglou X, Evangelou I, Flouris G, Foudas C, Kokkas P, Manthos N, Papadopoulos I, Paradas E, Strologas J, Bencze G, Hajdu C, Hidas P, Horvath D, Sikler F, Veszpremi V, Vesztergombi G, Zsigmond AJ, Beni N, Czellar S, Karancsi J, Molnar J, Palinkas J, Szillasi Z, Makovec A, Raics P, Trocsanyi ZL, Ujvari B, Swain SK, Beri SB, Bhatnagar V, Gupta R, Bhawandeep U, Kalsi AK, Kaur M, Kumar R, Mittal M, Nishu N, Singh JB, Kumar A, Kumar A, Ahuja S, Bhardwaj A, Choudhary BC, Kumar A, Malhotra S, Naimuddin M, Ranjan K, Sharma V, Banerjee S, Bhattacharya S, Chatterjee K, Dutta S, Gomber B, Jain S, Jain S, Khurana R, Modak A, Mukherjee S, Roy D, Sarkar S, Sharan M, Abdulsalam A, Dutta D, Kailas S, Kumar V, Mohanty AK, Pant LM, Shukla P, Topkar A, Aziz T, Banerjee S, Bhowmik S, Chatterjee RM, Dewanjee RK, Dugad S, Ganguly S, Ghosh S, Guchait M, Gurtu A, Kole G, Kumar S, Maity M, Majumder G, Mazumdar K, Mohanty GB, Parida B, Sudhakar K, Wickramage N, Bakhshiansohi H, Behnamian H, Etesami SM, Fahim A, Goldouzian R, Khakzad M, Najafabadi MM, Naseri M, Mehdiabadi SP, Hosseinabadi FR, Safarzadeh B, Zeinali M, Felcini M, Grunewald M, Abbrescia M, Calabria C, Chhibra SS, Colaleo A, Creanza D, De Filippis N, De Palmaa M, Fiore L, Iaselli G, Maggi G, Maggi M, My S, Nuzzo S, Pompili A, Pugliese G, Radogna R, Selvaggi G, Sharma A, Silvestris L, Venditti R, Abbiendi G, Benvenuti AC, Bonacorsi D, Braibant-Giacomelli S, Brigliadori L, Campanini R, Capiluppi P, Castro A, Cavallo FR, Codispoti G, Cuffiani M, Dallavalle GM, Fabbri F, Fanfani A, Fasanella D, Giacomelli P, Grandi C, Guiducci L, Marcellini S, Masetti G, Montanari A, Navarria FL, Perrotta A, Primavera F, Rossi AM, Rovelli T, Siroli GP, Tosi N, Travaglini R, Albergo S, Cappello G, Chiorboli M, Costa S, Giordano F, Potenza R, Tricomi A, Tuve C, Barbagli G, Ciulli V, Civinini C, D'Alessandro R, Focardi E, Gallo E, Gonzi S, Gori V, Lenzi P, Meschini M, Paoletti S, Sguazzoni G, Tropiano A, Benussi L, Bianco S, Fabbri F, Piccolo D, Ferretti R, Ferro F, Lo Vetere M, Robutti E, Tosi S, Dinardo ME, Fiorendi S, Gennai S, Gerosa R, Ghezzi A, Govoni P, Lucchini MT, Malvezzi S, Manzoni RA, Martelli A, Marzocchi B, Menasce D, Moroni L, Paganoni M, Pedrini D, Ragazzi S, Redaelli N, de Fatis TT, Buontempo S, Cavallo N, Di Guida S, Fabozzi F, Iorio AOM, Lista L, Meola S, Merola M, Paolucci P, Azzi P, Bacchetta N, Bisello D, Branca A, Carlin R, Checchia P, Dall'Osso M, Dorigo T, Galanti M, Gasparini U, Giubilato P, Gozzelino A, Kanishchev K, Lacaprara S, Margoni M, Meneguzzo AT, Pazzini J, Pozzobon N, Ronchese P, Simonetto F, Torassa E, Tosi M, Vanini S, Ventura S, Zotto P, Zucchetta A, Zumerle G, Gabusi M, Ratti SP, Re V, Riccardi C, Salvini P, Vitulo P, Biasini M, Bilei GM, Ciangottini D, Fano L, Lariccia P, Mantovani G, Menichelli M, Saha A, Santocchia A, Spiezia A, Androsov K, Azzurri P, Bagliesi G, Bernardini J, Boccali T, Broccolo G, Castaldi R, Ciocci MA, Dell'Orso R, Donato S, Fiori F, Foa L, Giassi A, Grippo MT, Ligabue F, Lomtadze T, Martini L, Messineo A, Moon CS, Palla F, Rizzi A, Savoy-Navarro A, Serban AT, Spagnolo P, Squillacioti P, Tenchini R, Tonelli G, Venturi A, Verdini PG, Vernieri C, Barone L, Cavallari F, D'imperio G, Del Re D, Diemoz M, Jorda C, Longo E, Margaroli F, Meridiani P, Micheli F, Nourbakhsh S, Organtini G, Paramatti R, Rahatlou S, Rovelli C, Santanastasio F, Soffi L, Traczyk P, Amapane N, Arcidiacono R, Argiro S, Arneodo M, Bellan R, Biino C, Cartiglia N, Casasso S, Costa M, Degano A, Demaria N, Finco L, Mariotti C, Maselli S, Migliore E, Monaco V, Musich M, Obertino MM, Ortona G, Pacher L, Pastrone N, Pelliccioni M, Angioni GLP, Potenza A, Romero A, Ruspa M, Sacchi R, Solano A, Staiano A, Tamponi U, Belforte S, Candelise V, Casarsa M, Cossutti F, Della Ricca G, Gobbo B, La Licata C, Marone M, Schizzi A, Umer T, Zanetti A, Chang S, Kropivnitskaya A, Nam SK, Kim DH, Kim GN, Kim MS, Kong DJ, Lee S, Oh YD, Park H, Sakharov A, Son DC, Kim TJ, Kim JY, Song S, Choi S, Gyun D, Hong B, Jo M, Kim H, Kim Y, Lee B, Lee KS, Park SK, Roh Y, Choi M, Kim JH, Park IC, Ryu G, Ryu MS, Choi Y, Choi YK, Goh J, Kim D, Kwon E, Lee J, Seo H, Yu I, Juodagalvis A, Komaragiri JR, Ali MABM, Linares EC, Castilla-Valdez H, De La Cruz-Burelo E, Heredia-de La Cruz I, Hernandez-Almada A, Lopez-Fernandez R, Sanchez-Hernandez A, Moreno SC, Valencia FV, Pedraza I, Ibarguen HAS, Pineda AM, Krofcheck D, Butler PH, Reucroft S, Ahmad A, Ahmad M, Hassan Q, Hoorani HR, Khan WA, Khurshid T, Shoaib M, Bialkowska H, Bluj M, Boimska B, Frueboes T, Gorski M, Kazana M, Nawrocki K, Romanowska-Rybinska K, Szleper M, Zalewski P, Brona G, Bunkowski K, Cwiok M, Dominik W, Doroba K, Kalinowski A, Konecki M, Krolikowski J, Misiura M, Olszewski M, Wolszczak W, Bargassa P, Silva CBDE, Faccioli P, Parracho PGF, Gallinaro M, Iglesias LL, Nguyen F, Antunes JR, Seixas J, Varela J, Vischia P, Afanasiev S, Bunin P, Golutvin I, Karjavin V, Konoplyanikov V, Kozlov G, Lanev A, Malakhov A, Matveev V, Moisenz P, Palichik V, Perelygin V, Savina M, Shmatov S, Shulha S, Skatchkov N, Smirnov V, Zarubin A, Golovtsov V, Ivanov Y, Kim V, Levchenko P, Murzin V, Oreshkin V, Smirnov I, Sulimov V, Uvarov L, Vavilov S, Vorobyev A, Vorobyev A, Andreev Y, Dermenev A, Gninenko S, Golubev N, Kirsanov M, Krasnikov N, Pashenkov A, Tlisov D, Toropin A, Epshteyn V, Gavrilov V, Lychkovskaya N, Popov V, Pozdnyakov I, Safronov G, Semenov S, Spiridonov A, Stolin V, Vlasov E, Zhokin A, Andreev V, Azarkin M, Dremin I, Kirakosyan M, Leonidov A, Mesyats G, Rusakov SV, Vinogradov A, Belyaev A, Boos E, Bunichev V, Dubinin M, Dudko L, Ershov A, Gribushin A, Klyukhin V, Kodolova O, Lokhtin I, Obraztsov S, Savrin V, Snigirev A, Azhgirey I, Bayshev I, Bitioukov S, Kachanov V, Kalinin A, 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Search for new phenomena in monophoton final states in proton-proton collisions at root s=8 TeV
PHYSICS LETTERS B 2016 APR 10; 755(?):102-124
Results are presented from a search for new physics in final states containing a photon and missing transverse momentum. The data correspond to an integrated luminosity of 19.6 fb(-1) collected in proton-proton collisions at root s = 8 TeV with the CMS experiment at the LHC. Nodeviation from the standard model predictions is observed for these final states. New, improved limits are set on dark matter production and on parameters of models with large extra dimensions. In particular, the first limits from the LHC on branon production are found and significantly extend previous limits from LEP and the Tevatron. An upper limit of 14.0 fb on the cross section is set at the 95% confidence level for events with a monophoton final state with photon transverse momentum greater than 145 GeV and missing transverse momentum greater than 140 GeV. (C) 2016 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V.
Belousov R, Cohen EGD, Wong CS, Goree JA, Feng Y
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Skewness of steady-state current fluctuations in nonequilibrium systems
PHYSICAL REVIEW E 2016 APR 21; 93(4):? Article 042125
A skewness of the probability for instantaneous current fluctuations, in a nonequilibrium steady state, is observed experimentally in a dusty plasma. This skewness is attributed to the spatial asymmetry, which is imminent to the nonequilibrium systems due to the external hydrodynamic gradient. Using the modern framework of the large deviation theory, we extend the Onsager-Machlup ansatz for equilibrium fluctuations to systems with a preferred spatial direction, and provide a modulated Gaussian probability distribution, which is tested by simulations. This probability distribution is also of potential interest for other statistical disciplines. Connections with the principles of statistical mechanics, due to Boltzmann and Gibbs, are discussed as well.