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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, Drees KA, du Rietz R, Durum A, Dutta D, Efremenko YV, El-Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. J/psi production from proton-proton collisions at square root of s=200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:051802. [PMID: 14995296 DOI: 10.1103/physrevlett.92.051802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2003] [Indexed: 05/24/2023]
Abstract
J/psi production has been measured in proton-proton collisions at square root of s=200 GeV over a wide rapidity and transverse momentum range by the PHENIX experiment at the Relativistic Heavy Ion Collider. Distributions of the rapidity and transverse momentum, along with measurements of the mean transverse momentum and total production cross section are presented and compared to available theoretical calculations. The total J/psi cross section is 4.0+/-0.6(stat)+/-0.6(syst)+/-0.4(abs) mu b. The mean transverse momentum is 1.80+/-0.23(stat)+/-0.16(syst) GeV/c.
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, Drees KA, Du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier De Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, Van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Midrapidity neutral-pion production in proton-proton collisions at square root s = 200 GeV. PHYSICAL REVIEW LETTERS 2003; 91:241803. [PMID: 14683109 DOI: 10.1103/physrevlett.91.241803] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2003] [Indexed: 05/24/2023]
Abstract
The invariant differential cross section for inclusive neutral-pion production in p+p collisions at sqrt[s]=200 GeV has been measured at midrapidity (|eta|<0.35) over the range 1<p(T) less, similar 14 GeV/c by the PHENIX experiment at the Relativistic Heavy Ion Collider. Predictions of next-to-leading order perturbative QCD calculations are consistent with these measurements. The precision of our result is sufficient to differentiate between prevailing gluon-to-pion fragmentation functions.
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Miyashita T, Kawakami A, Tamai M, Izumi Y, Mingguo H, Tanaka F, Abiru S, Nakashima K, Iwanaga N, Aratake K, Kamachi M, Arima K, Ida H, Migita K, Origuchi T, Tagashira S, Nishikaku F, Eguchi K. Akt is an endogenous inhibitor toward tumor necrosis factor-related apoptosis inducing ligand-mediated apoptosis in rheumatoid synovial cells. Biochem Biophys Res Commun 2003; 312:397-404. [PMID: 14637151 DOI: 10.1016/j.bbrc.2003.10.141] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Akt is known to be activated in the rheumatoid synovial tissues. We examined here functional role of Akt during tumor necrosis factor-related apoptosis inducing ligand (TRAIL)-mediated apoptosis in rheumatoid synovial cells. Rheumatoid synovial cells in vitro were rapidly committed to apoptosis in response to TRAIL in mitochondria-dependent manner whereas Akt and extracellular signal-regulated kinase (ERK) were also phosphorylated. TRAIL-mediated apoptosis in synovial cells was significantly increased through inactivation of Akt by LY294002, however, that process was not so changed by adding ERK inhibitor, PD98059. Platelet-derived growth factor (PDGF) clearly phosphorylated both Akt and ERK in synovial cells, and PDGF pretreatment markedly suppressed TRAIL-mediated synovial cell apoptosis. The use of not PD98059 but LY294002 abrogated PDGF-mediated inhibitory effect toward TRAIL-induced apoptosis in synovial cells. The above protective effect of Akt was confirmed by the use of short interfering RNA (siRNA)-directed inhibition of Akt. Our data suggest that Akt is an endogenous inhibitor during TRAIL-mediated synovial cell apoptotic pathway, which may explain that synovial cells in situ of the rheumatoid synovial tissues are resistant toward apoptotic cell death in spite of death receptor expression.
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Nakashima K, Kawakami A, Hida A, Yamasaki S, Nakamura H, Kamachi M, Miyashita T, Tanaka F, Izumi Y, Tamai M, Ida H, Furuyama M, Koji T, Nakamura T, Migita K, Origuchi T, Eguchi K. Protection of mitochondrial perturbation by human T-lymphotropic virus type 1 tax through induction of Bcl-xL expression. ACTA ACUST UNITED AC 2003; 142:341-7. [PMID: 14647038 DOI: 10.1016/s0022-2143(03)00134-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This study was designed to determine the inhibitory role of human T-lymphotropic virus type 1 (HTLV-1) tax against apoptotic cell death. We used JPX-9 cells, a Jurkat subclone generated by the stable introduction of a tax expression-plasmid vector, and induced tax expression in JPX-9 cells with CdCl2. Expression of Bcl-2, Bcl-xL, and Bax in JPX-9 cells was assessed with Western blot analysis. Both tax-negative and tax-positive JPX-9 cells were incubated in the presence of several apoptogenic stimuli, and sensitivity to apoptogenic stimuli was also evaluated. Compared with tax-negative JPX-9 cells, Bcl-xL expression was clearly augmented in tax-positive JPX-9 cells. These cells were resistant to both receptor-mediated apoptosis (induced by anti-Fas IgM and tumor necrosis factor-related apoptosis-inducing ligand) and chemical-induced apoptosis (induced by pyrrolidine dithiocarbamate, etoposide, and staurosporine), as evidenced by the presence of hypodiploid DNA-positive cells, activation of caspase-3 and caspase-9, disruption of mitochondrial transmembrane potential (DeltaPsim) and inhibition of cytochrome c release in tax-positive JPX-9 cells compared with tax-negative JPX-9 cells. Our results suggest that tax-mediated Bcl-xL expression inhibits apoptosis of activated T-cells in HTLV-1-seropositive subjects, which consequently promotes the onset of autoimmune disorders such as Sjögren's syndrome.
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower LD, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar A, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Elliptic flow of identified hadrons in Au+Au collisions at sqrt sNN =200 GeV. PHYSICAL REVIEW LETTERS 2003; 91:182301. [PMID: 14611277 DOI: 10.1103/physrevlett.91.182301] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2003] [Indexed: 05/24/2023]
Abstract
The anisotropy parameter (v(2)), the second harmonic of the azimuthal particle distribution, has been measured with the PHENIX detector in Au+Au collisions at sqrt[s(NN)]=200 GeV for identified and inclusive charged particle production at central rapidities (|eta|<0.35) with respect to the reaction plane defined at high rapidities (|eta|=3-4 ). We observe that the v(2) of mesons falls below that of (anti)baryons for p(T)>2 GeV/c, in marked contrast to the predictions of a hydrodynamical model. A quark-coalescence model is also investigated.
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp G, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower LD, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar A, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, Van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Scaling properties of proton and antiproton production in sqrt[s(NN)]=200 GeV Au+Au collisions. PHYSICAL REVIEW LETTERS 2003; 91:172301. [PMID: 14611335 DOI: 10.1103/physrevlett.91.172301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2003] [Indexed: 05/24/2023]
Abstract
We report on the yield of protons and antiprotons, as a function of centrality and transverse momentum, in Au+Au collisions at sqrt[s(NN)]=200 GeV measured at midrapidity by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider. In central collisions at intermediate transverse momenta (1.5<p(T)<4.5 GeV/c) a significant fraction of all produced particles are protons and antiprotons. They show a centrality-scaling behavior different from that of pions. The pmacr;/pi and p/pi ratios are enhanced compared to peripheral Au+Au, p+p, and e(+)e(-) collisions. This enhancement is limited to p(T)<5 GeV/c as deduced from the ratio of charged hadrons to pi(0) measured in the range 1.5<p(T)<9 GeV/c.
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, Drees KA, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Suppressed pi(0) production at large transverse momentum in central Au+Au collisions at sqrt[s(NN)]=200 GeV. PHYSICAL REVIEW LETTERS 2003; 91:072301. [PMID: 12935006 DOI: 10.1103/physrevlett.91.072301] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2003] [Indexed: 05/24/2023]
Abstract
Transverse momentum spectra of neutral pions in the range 1<p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au+Au collisions at sqrt[s(NN)]=200 GeV. The pi(0) multiplicity in central reactions is significantly below the yields measured at the same sqrt[s(NN)] in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is approximately 2.5 at p(T)=2 GeV/c and increases to approximately 4-5 at p(T) approximately 4 GeV/c. At larger p(T), the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
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Nakahira A, Tamai M, Aritani H, Nakamura S, Yamashita K. Biocompatibility of dense hydroxyapatite prepared using an SPS process. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH 2002; 62:550-7. [PMID: 12221703 DOI: 10.1002/jbm.10344] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In the present study, the preparation of dense hydroxyapatite (HAp) materials at relative low temperatures using a spark plasma sintering was carried out. The bioactivity of HAp samples prepared by a spark plasma sintering method was investigated by in vitro tests and compared with HAp obtained by a conventional hot-pressing method. No growth of bone-like HAp crystals on surface of HAp sintered by a conventional hot-pressing method at 1200 degrees C was observed after immersion in a simulated body fluid (SBF) for 2 days. However, many large bone-like HAp crystals were observed on the surface of HAp samples prepared by a spark plasma sintering at 1200 degrees C after 2 days in the SBF immersion test. Especially, the negatively charged surface of the HAp samples prepared by spark plasma sintering was covered with larger HAp crystals compared with the positively charged surface. The electric poling of HAp was measured using a thermally simulated current technique. This rapid growth of bone-like HAp crystals of the HAp samples made by spark plasma sintering was believed to be related with the OH(-) and/or Ca(2(+) ) ion deficiency at the grain boundaries of the HAp matrix grains as well as a small electric poling effect resulting during the spark plasma sintering process.
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Kunikata H, Udono T, Nishikawa S, Tamai M. Bilateral serous macular detachment in a patient with anaemic retinopathy secondary to gall bladder cancer. Br J Ophthalmol 2002; 86:1456-7. [PMID: 12446401 PMCID: PMC1771423 DOI: 10.1136/bjo.86.12.1456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, El Chenawi K, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Perdekamp MG, Gupta SK, Guryn W, Gustafsson HA, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, Van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S. Flow measurements via two-particle azimuthal correlations in Au + Au collisions at sqrt [s(NN)]=130 GeV. PHYSICAL REVIEW LETTERS 2002; 89:212301. [PMID: 12443403 DOI: 10.1103/physrevlett.89.212301] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2002] [Indexed: 05/24/2023]
Abstract
Two-particle azimuthal correlation functions are presented for charged hadrons produced in Au+Au collisions at the Relativistic Heavy Ion Collider (sqrt [s(NN)]=130 GeV). The measurements permit determination of elliptic flow without event-by-event estimation of the reaction plane. The extracted elliptic flow values (v2) show significant sensitivity to both the collision centrality and the transverse momenta of emitted hadrons, suggesting rapid thermalization and relatively strong velocity fields. When scaled by the eccentricity of the collision zone epsilon, the scaled elliptic flow shows little or no dependence on centrality for charged hadrons with relatively low p(T). A breakdown of this epsilon scaling is observed for charged hadrons with pT >1.0 GeV/c.
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, el-Chenawi K, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Grosse Perdekamp M, Gupta SK, Guryn W, Gustafsson HA, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, Van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S, Zhou S. Measurement of Lambda and Lambda(macro) particles in Au+Au collisions at the square root of S(NN) = 130 GeV. PHYSICAL REVIEW LETTERS 2002; 89:092302. [PMID: 12190391 DOI: 10.1103/physrevlett.89.092302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2002] [Indexed: 05/23/2023]
Abstract
We present results on the measurement of Lambda and Lambda(macro) production in Au+Au collisions at square root of (S (NN) = 130 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. The transverse momentum spectra were measured for minimum bias and for the 5% most central events. The Lambda;/Lambda ratios are constant as a function of p(T) and the number of participants. The measured net Lambda density is significantly larger than predicted by models based on hadronic strings (e.g., HIJING) but in approximate agreement with models which include the gluon-junction mechanism.
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, El Chenawi K, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Grosse Perdekamp M, Gupta SK, Guryn W, Gustafsson HA, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S. Net charge fluctuations in Au + Au interactions at sqrt[s(NN)]=130 GeV. PHYSICAL REVIEW LETTERS 2002; 89:082301. [PMID: 12190459 DOI: 10.1103/physrevlett.89.082301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2002] [Indexed: 05/23/2023]
Abstract
Data from Au + Au interactions at sqrt[s(NN)]=130 GeV, obtained with the PHENIX detector at the Relativistic Heavy-Ion Collider, are used to investigate local net charge fluctuations among particles produced near midrapidity. According to recent suggestions, such fluctuations may carry information from the quark-gluon plasma. This analysis shows that the fluctuations are dominated by a stochastic distribution of particles, but are also sensitive to other effects, like global charge conservation and resonance decays.
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Yoshida M, Abe T, Kano T, Tamai M. Two types of optical coherence tomographic images of retinal pigment epithelial detachments with different prognosis. Br J Ophthalmol 2002; 86:737-9. [PMID: 12084740 PMCID: PMC1771214 DOI: 10.1136/bjo.86.7.737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To report the optical coherence tomographic (OCT) findings in retinal pigment epithelium (RPE) detachments. METHODS 24 eyes were analysed by OCT and by fluorescein (FAG) and/or indocyanine green angiography. RESULTS RPE detachments were classified by the OCT images into those with a partial or total highly reflective line in the area of the detachment (nine eyes), and those that showed the same reflex in the detached area as in other parts (15 eyes). The nine eyes had irregular hyperfluorescence by FAG, significantly larger detachments, and lower visual acuity than the 15 eyes. CONCLUSION The OCT showed that two types of RPE detachments are associated with eyes with different characteristics.
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, El Chenawi K, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Grosse Perdekamp M, Gupta SK, Guryn W, Gustafsson HA, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S. Centrality dependence of pi(+/-), K(+/-), p, and (-)p production from sqrt[s(NN)] = 130 GeV Au + Au collisions at RHIC. PHYSICAL REVIEW LETTERS 2002; 88:242301. [PMID: 12059292 DOI: 10.1103/physrevlett.88.242301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2001] [Indexed: 05/23/2023]
Abstract
Identified pi(+/-), K(+/-), p, and (-)p transverse momentum spectra at midrapidity in sqrt[s(NN)] = 130 GeV Au+Au collisions were measured by the PHENIX experiment at RHIC as a function of collision centrality. Average transverse momenta increase with the number of participating nucleons in a similar way for all particle species. Within errors, all midrapidity particle yields per participant are found to be increasing with the number of participating nucleons. There is an indication that K(+/-), p, and (-)p yields per participant increase faster than the pi(+/-) yields. In central collisions at high transverse momenta (p(T) > or =2 GeV/c), (-)p and p yields are comparable to the pi(+/-) yields.
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Saitoh T, Fukushima Y, Otsuka H, Ishikawa M, Tamai M, Takahashi H, Mori H, Asano T, Anai M, Ishikawa T, Katsube T, Ogawa K, Kajiwara T, Omata M, Ohkawa S. Effects of N-alpha-methyl-histamine on human H(2) receptors expressed in CHO cells. Gut 2002; 50:786-9. [PMID: 12010879 PMCID: PMC1773239 DOI: 10.1136/gut.50.6.786] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND Production of N-alpha-methyl-histamine (NAMH), a histamine H(3) receptor (H3R) agonist, is reportedly promoted in Helicobacter pylori infected human gastric mucosa. NAMH was suggested to act directly on histamine H(2) receptors (H2Rs) in animals to stimulate acid secretion and to be a H2R agonist. As H2Rs and H3Rs play different roles in gastric acid secretion, it is very important to verify that NAMH is a H2R agonist. AIMS To determine whether NAMH is a H2R agonist, as well as a H3R agonist. METHODS We used a Chinese hamster ovary (CHO) cell line expressing human H2Rs (CHO-H2R) and control CHO cells. Expression of human H2Rs was confirmed by tiotidine binding. cAMP production in CHO-H2R and control cells in response to histamine or NAMH was measured. cAMP production in response to 10(-7) M NAMH was also measured in the presence or absence of the H2R antagonist famotidine and the H3R antagonist thioperamide. RESULTS NAMH dose dependently stimulated cAMP productions in CHO-H2R cells. This production was inhibited by famotidine but not by thioperamide. Control CHO cells were unresponsive to either histamine or NAMH. In addition, the effect of NAMH, in terms of cAMP production in CHO-H2R cells, was more potent than that of histamine-that is, with a lower EC(50) concentration and higher maximal cAMP production. Both NAMH and histamine, but not R-alpha-methyl-histamine, effectively inhibited [(3)H] tiotidine binding to CHO-H2R cells. CONCLUSIONS NAMH, which is produced in the gastric mucosa by H pylori, is a potent H2R agonist as well as a H3R agonist.
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Grosse Perdekamp M, Gupta SK, Guryn W, Gustafsson HA, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, Van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S. Transverse-mass dependence of two-pion correlations in Au+Au collisions at square root[s(NN)] = 130 GeV. PHYSICAL REVIEW LETTERS 2002; 88:192302. [PMID: 12005626 DOI: 10.1103/physrevlett.88.192302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2002] [Indexed: 05/23/2023]
Abstract
Two-pion correlations in square root[s(NN)] = 130 GeV Au+Au collisions at RHIC have been measured over a broad range of pair transverse momentum k(T) by the PHENIX experiment at RHIC. The k(T) dependent transverse radii are similar to results from heavy-ion collisions at square root[s(NN)] = 4.1, 4.9, and 17.3 GeV, whereas the longitudinal radius increases monotonically with beam energy. The ratio of the outwards to sidewards transverse radii (R(out)/R(side)) is consistent with unity and independent of k(T).
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, El Chenawi K, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Grosse Perdekamp M, Gupta SK, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, Van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S. Measurement of single electrons and implications for charm production in Au+Au collisions at square root[s(NN)] = 130 GeV. PHYSICAL REVIEW LETTERS 2002; 88:192303. [PMID: 12005627 DOI: 10.1103/physrevlett.88.192303] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2002] [Indexed: 05/23/2023]
Abstract
Transverse momentum spectra of electrons from Au+Au collisions at square root[s(NN)] = 130 GeV have been measured at midrapidity by the PHENIX experiment at the Relativistic Heavy Ion Collider. The spectra show an excess above the background from photon conversions and light hadron decays. The electron signal is consistent with that expected from semileptonic decays of charm. The yield of the electron signal dN(e)/dy for p(T) > 0.8 GeV/c is 0.025+/-0.004(stat)+/-0.010(syst) in central collisions, and the corresponding charm cross section is 380+/-60(stat)+/-200(syst) microb per binary nucleon-nucleon collision.
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Yamauchi T, Maeda M, Tamai S, Tamai M, Yajima H, Takakura Y, Haga S, Yamamoto H. Collateral sprouting mechanism after end-to-side nerve repair in the rat. MEDICAL ELECTRON MICROSCOPY : OFFICIAL JOURNAL OF THE CLINICAL ELECTRON MICROSCOPY SOCIETY OF JAPAN 2002; 33:151-6. [PMID: 11810473 DOI: 10.1007/s007950000015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2000] [Accepted: 11/10/2000] [Indexed: 12/28/2022]
Abstract
The collateral sprouting mechanisms of axons from an uninjured donor nerve after end-to-side nerve repair was investigated in motor nerves of rats, with special reference to the neurotrophins related to nerve regeneration. In addition, growth cone formation at the tip of the regenerating nerve was examined. A transected medial gastrocnemius nerve (MGN) was transferred to the side of an intact lateral gastrocnemius nerve (LGN) using a Y-shaped silicone tube. At 3, 7, or 14 days later, the MGN with the LGN was transected and was stained immunohistologically. Expression of neurotrophin-3 (NT-3) and Trk C (receptor of NT-3) was most significantly observed 3 days postoperatively around the site of coaptation. Brain-derived neurotrophic factor (BDNF) and Trk B (receptor of BDNF) was weakly detected at the coaptation site 3 days after-operation. Growth-associated protein 43 (GAP-43), which is a marker of growth cone formation, was observed at the site of coaptation in the LGN 7 days postoperatively and in the MGN at the site of coaptation at 14 days. We concluded that motor nerve regeneration due to collateral sprouting of axons after end-to-side nerve repair is possible. We thus demonstrated the involvement of at least one neurotrophin, NT-3, in the process of collateral sprouting of motor nerves.
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319
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Adcox K, Adler SS, Ajitanand NN, Akiba Y, Alexander J, Aphecetche L, Arai Y, Aronson SH, Averbeck R, Awes TC, Barish KN, Barnes PD, Barrette J, Bassalleck B, Bathe S, Baublis V, Bazilevsky A, Belikov S, Bellaiche FG, Belyaev ST, Bennett MJ, Berdnikov Y, Botelho S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J, Butsyk S, Carey TA, Chand P, Chang J, Chang WC, Chavez LL, Chernichenko S, Chi CY, Chiba J, Chiu M, Choudhury RK, Christ T, Chujo T, Chung MS, Chung P, Cianciolo V, Cole BA, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Dinesh BV, Drees A, Durum A, Dutta D, Ebisu K, Efremenko YV, El Chenawi K, En'yo H, Esumi S, Ewell L, Ferdousi T, Fields DE, Fokin SL, Fraenkel Z, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Godoi AL, Goto Y, Greene SV, Grosse Perdekamp M, Gupta SK, Guryn W, Gustafsson HA, Haggerty JS, Hamagaki H, Hansen AG, Hara H, Hartouni EP, Hayano R, Hayashi N, He X, Hemmick TK, Heuser JM, Hibino M, Hill JC, Ho DS, Homma K, Hong B, Hoover A, Ichihara T, Imai K, Ippolitov MS, Ishihara M, Jacak BV, Jang WY, Jia J, Johnson BM, Johnson SC, Joo KS, Kametani S, Kang JH, Kann M, Kapoor SS, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim HJ, Kim SY, Kim YG, Kinnison WW, Kistenev E, Kiyomichi A, Klein-Boesing C, Klinksiek S, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kotchetkov D, Kozlov A, Kroon PJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lauret J, Lebedev A, Lee DM, Leitch MJ, Li XH, Li Z, Lim DJ, Liu MX, Liu X, Liu Z, Maguire CF, Mahon J, Makdisi YI, Manko VI, Mao Y, Mark SK, Markacs S, Martinez G, Marx MD, Masaike A, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Merschmeyer M, Messer F, Messer M, Miake Y, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Muniruzzaman M, Murata J, Nagamiya S, Nagasaka Y, Nagle JL, Nakada Y, Nandi BK, Newby J, Nikkinen L, Nilsson P, Nishimura S, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Ono M, Onuchin V, Oskarsson A, Osterman L, Otterlund I, Oyama K, Paffrath L, Palounek APT, Pantuev VS, Papavassiliou V, Pate SF, Peitzmann T, Petridis AN, Pinkenburg C, Pisani RP, Pitukhin P, Plasil F, Pollack M, Pope K, Purschke ML, Ravinovich I, Read KF, Reygers K, Riabov V, Riabov Y, Rosati M, Rose AA, Ryu SS, Saito N, Sakaguchi A, Sakaguchi T, Sako H, Sakuma T, Samsonov V, Sangster TC, Santo R, Sato HD, Sato S, Sawada S, Schlei BR, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shin YH, Sibiriak IG, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sorensen S, Stankus PW, Starinsky N, Steinberg P, Stenlund E, Ster A, Stoll SP, Sugioka M, Sugitate T, Sullivan JP, Sumi Y, Sun Z, Suzuki M, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Taniguchi E, Tannenbaum MJ, Thomas J, Thomas JH, Thomas TL, Tian W, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tsvetkov AA, Tuli SK, Tydesjö H, Tyurin N, Ushiroda T, van Hecke HW, Velissaris C, Velkovska J, Velkovsky M, Vinogradov AA, Volkov MA, Vorobyov A, Vznuzdaev E, Wang H, Watanabe Y, White SN, Witzig C, Wohn FK, Woody CL, Xie W, Yagi K, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang Z, Zhou S. Suppression of hadrons with large transverse momentum in central Au+Au collisions at root square[s(NN)] = 130 GeV. PHYSICAL REVIEW LETTERS 2002; 88:022301. [PMID: 11801005 DOI: 10.1103/physrevlett.88.022301] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2001] [Indexed: 05/23/2023]
Abstract
Transverse momentum spectra for charged hadrons and for neutral pions in the range 1 GeV/c<p(T)<5 GeV/c have been measured by the PHENIX experiment at RHIC in Au+Au collisions at root square[s(NN)] = 130 GeV. At high p(T) the spectra from peripheral nuclear collisions are consistent with scaling the spectra from p+p collisions by the average number of binary nucleon-nucleon collisions. The spectra from central collisions are significantly suppressed when compared to the binary-scaled p+p expectation, and also when compared to similarly binary-scaled peripheral collisions, indicating a novel nuclear-medium effect in central nuclear collisions at RHIC energies.
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Naito A, Izumi H, Karita K, Tamai M. Effects of a beta-adrenergic blocking agent timolol on intra ocular pressure responses induced by stimulation of cervical sympathetic nerve in the cat. TOHOKU J EXP MED 2001; 195:219-25. [PMID: 11908823 DOI: 10.1620/tjem.195.219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We clarified whether the intraocular pressure (IOP) response elicited by stimulation of the cervical sympathetic nerve (CSN) is influenced by changes in the baseline of IOP level and by beta-adrenergic blockade. The CSN was stimulated electrically for 30 seconds (10 V, 0.1-100 Hz, 2 milliseconds pulse duration) in urethane (100 mg/kg i.v.)-chloralose (50 mg/kg i.v.)-anesthetized, paralyzed cats. The IOP was monitored manometrically, and a controlled saline infusion was delivered into the anterior chamber to gradually increase IOP. CSN stimulation was delivered at the various baseline IOP levels so obtained. When required, a beta-adrenergic blocker timolol (2%) was delivered into the conjunctival cul-de-sac. The normal IOP in our cats was 25+/-3 mmHg. This value decreased transiently on CSN stimulation. The amplitude of this IOP response depended on stimulus frequency and the pre-stimulus baseline IOP level. Topical administration of timolol increased the IOP response to CSN stimulation at a given baseline level. These results suggest that beta-adrenergic blockade increases the alpha-adrenergic mediated-IOP reduction elicited by CSN stimulation at given baseline IOP level.
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Abe T, Yoshida M, Kano T, Tamai M. Visual function after removal of subretinal neovascular membranes in patients with age-related macular degeneration. Graefes Arch Clin Exp Ophthalmol 2001; 239:927-36. [PMID: 11820698 DOI: 10.1007/s00417-001-0393-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Retinal pigment epithelial (RPE) cells have been transplanted to replace the RPE cells lost after surgical excision of choroidal neovascular membranes (CNV) associated with age-related macular degeneration. The purpose of this study was to analyze the visual function of eyes with altered RPE after surgical excision of choroidal neovascular membranes (CNV) associated with age-related macular degeneration, and to determine the effect of proliferated or migrated RPE cells on visual function. METHODS Forty-seven patients with age-related macular degeneration underwent excision of CNVs following vitrectomy and tamponade with sulfur hexafluoride (SF6) or silicone oil. The appearance of pre- or subretinal fibrosis and pigmentation of the lesion was considered to indicate proliferation and migration of RPE cells. Microperimetry was also performed. RESULTS A significant correlation was found between the size of CNVs removed by surgery and the size estimated by indocyanine green angiography (P=0.0126). The mean number of RPE cells lost was estimated at 1.52 x 10(4). Pre- or subretinal fibrosis or pigmentation was observed in 37 patients (75.5%). The number of eyes with fibrosis was significantly higher in eyes with silicone oil tamponade than with SF6 tamponade (P=0.0016). A statistically significant correlation was not found between the presence of fibrosis or pigmentation and the postoperative visual acuity. Not all patients used the area of pigmentation for fixation, and microperimetry showed that some of the patients had scotomas in well-pigmented areas. CONCLUSIONS Fibrosis and pigmentation after excision of CNVs may not always indicate normal function in these areas. These observations are especially relevant for transplantation of pigment epithelial cells in the future.
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Tamai M. [Birth defect syndrome and bioethics]. RYOIKIBETSU SHOKOGUN SHIRIZU 2001:54-60. [PMID: 11462558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Abe T, Abe K, Tsuda T, Itoyama Y, Tamai M. Ophthalmological findings in patients with spinocerebellar ataxia type 1 are not correlated with neurological anticipation. Graefes Arch Clin Exp Ophthalmol 2001; 239:722-8. [PMID: 11760030 DOI: 10.1007/s004170100342] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Optic atrophy, attenuation of the oscillatory potentials (OPs) of the electroretinogram (ERG), and enlargement of corneal endothelial cells, have been reported in patients with spinocerebellar ataxia type 1 (SCA1). These patients have a trinucleotide repeat expansion in the SCA1 gene and show neurological anticipation. The purpose of this study was to determine whether the ophthalmological findings are correlated with the neurological disorders, and whether ophthalmological anticipation is present in patients with SCA1. METHODS The visual acuity, ERGs, and corneal endothelial cell density were examined in 14 patients whose DNA analysis revealed an expanded trinucleotide repeat in an allele of the SCA1 gene. The results of the tests were compared with the trinucleotide repeat number and the duration of the neuronal disease. RESULTS The neurological disorders in the patients showed anticipation. The negative correlation between the trinucleotide repeat number and the neurological disorder was statistically significant (P<0.0001). However, the correlations between trinucleotide repeat number and visual acuity, amplitude of OPs, and corneal endothelial cell density were not significant. Statistically significant correlations were found between the duration of the neuronal disease and the visual acuity, OPs, and corneal endothelial cell density (P<0.0001, P=0.0004, and P<0.0001, respectively). The ophthalmological disorders were prominent in patients who had neuronal disease for more than 10 years. CONCLUSION Unlike the neurological findings, the ophthalmological disorders in patients with SCA1 were not correlated with the trinucleotide repeat number of the SCA1 gene. The ophthalmological findings were most highly correlated with the duration of the neuronal disease.
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Suzuki T, Takahashi K, Kuwahara S, Wada Y, Abe T, Tamai M. A novel (Pro79Thr) mutation in the FKHL7 gene in a Japanese family with Axenfeld-Rieger syndrome. Am J Ophthalmol 2001; 132:572-5. [PMID: 11589884 DOI: 10.1016/s0002-9394(01)01059-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE To report the ocular and genetic findings of a Japanese family with Axenfeld-Rieger syndrome associated with a novel Pro79Thr mutation in the FKHL7 gene. METHODS Observational case series. Genomic DNA of patients from a family with Axenfeld-Rieger syndrome was extracted from leukocytes, and exons of the FKHL7 gene were amplified by polymerase chain reaction for direct sequencing. RESULTS Molecular genetic analysis disclosed that one Japanese family with Axenfeld-Rieger syndrome had a heterozygous C to A transversion in the first nucleotide at codon 79, designated Pro79Thr mutation in the FKHL7 gene. CONCLUSION Considering this novel Pro79Thr mutation together with previously reported findings, it is indicated that the clinical features of Axenfeld-Rieger syndrome may depend on the portion of the FKHL7 gene affected by the mutation, although more case reports are needed to clarify genotype-phenotype correlations of the FKHL7 gene.
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Wada Y, Abe T, Takeshita T, Sato H, Yanashima K, Tamai M. Mutation of human retinal fascin gene (FSCN2) causes autosomal dominant retinitis pigmentosa. Invest Ophthalmol Vis Sci 2001; 42:2395-400. [PMID: 11527955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
PURPOSE To characterize the clinical features of 14 Japanese patients with autosomal dominant retinitis pigmentosa (ADRP) who were found to have a mutation in the FSCN2 gene. METHODS Mutation screening by single-strand conformation polymorphism (SSCP) was performed in 120 unrelated patients with ADRP, 200 unrelated patients with autosomal recessive retinitis pigmentosa (ARRP), and 100 patients with simplex RP (SRP). The DNA fragment that showed abnormal mobility on SSCP was sequenced. The clinical features of these patients were determined by visual acuity, slit lamp biomicroscopy, electroretinography, fluorescein angiography, and kinetic visual field testing. RESULTS A novel 208delG mutation in the FSCN2 gene was identified in 14 patients from four unrelated families with ADRP. The ophthalmic findings were typical of RP. CONCLUSIONS The findings show that a 208delG mutation in the FSCN2 gene produces ADRP. This mutation was found in 3.3% of the patients with ADRP in Japan, which suggests that it may be relatively common in Japanese patients with ADRP.
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