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术后静脉补充铁剂并不能改善分期双侧膝关节置换血红蛋白水平和输血率

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临床骨科杂志 2020年第3期23卷 355-355页

作者：胡孔足(摘译) jeong J h.Ch.NG M J KANG S B 不详

为研究分期双侧膝关节置换术后静脉补充铁剂的疗效,作者回顾性分析了126例分期行双侧膝关节置换术患者资料,两侧手术间隔1周。65例两侧术后都静脉补充铁剂,61例没有静脉补充铁剂。结果发现,虽然术后接受静脉补充铁剂的患者血清铁含量改... 详细信息

为研究分期双侧膝关节置换术后静脉补充铁剂的疗效,作者回顾性分析了126例分期行双侧膝关节置换术患者资料,两侧手术间隔1周。65例两侧术后都静脉补充铁剂,61例没有静脉补充铁剂。结果发现,虽然术后接受静脉补充铁剂的患者血清铁含量改善,但是两组患者术后血红蛋白水平、输血率没有显著性差异。

关键词：血红蛋白水平补充铁剂输血率双侧膝关节置换术血清铁含量患者术后手术间隔显著性差异

Comparison of postpolypectomy bleeding between epineph.ine and saline submucosal injection for large colon polyps by conventional polypectomy:A prospective randomized,multicenter study

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World Journal of Gastroenterology 2007年第21期13卷 2973-2977页

作者： Suck-h. Lee Il-Kwun Ch.ng Sun-Joo Kim Jin-Oh.Kim Bong-Min Ko Won-h. Kim h.un-Soo Kim Dong-IL Park h.o-Jong Kim jeong-Sik Byeon Suk-Kyun Yang Byeong Ik Jang Sung-Ae Jung Yoon-Tae Jeen Jai-h.un Ch.i h.ang Ch.i Dong-Soo h.n Jae Suk Song Department of Internal Medicine University of Soonchunhyang at CheonanCheonan & Seoul & BucheonRepublic of Korea Department of Internal Medicine University of Yonsei at SeoulSeoul & WonjuRepublic of Korea Department of Internal Medicine University of Sungkyunkwan at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Kyunghee at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Ulsan at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Youngnam at TaeguTaeguRepublic of Korea Department of Internal Medicine University of Ewha at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Korea at SeoulSeoul & AnsanRepublic of Korea Department of Internal Medicine University of Catholic at BucheonBucheonRepublic of Korea Department of Internal Medicine University of Hanyang at KuriKuriRepublic of Korea Department of Preventive Medicine University of KwandongKangneungRepublic of Korea

AIM:To evaluate and compare th. clinical outcomes of proph.lactic submucosal saline-epineph.ine injection and saline injection alone for large colon polyps by conventional polypectomy. METh.DS:A prospective study was conducted from July 2003 to July 2004 at 11 tertiary endoscopic centers. Large colon polyps (> 10 mm in diameter) wererandomized to undergo endoscopic polypectomy with.submucosal saline-epineph.ine injection (epineph.ine group) or normal saline injection (saline group). Endoscopic polypectomy was performed by th. conventional snare meth.d,and early (h. and late bleeding complications (12 h.30 d) were observed. RESULTS:A total of 561 polyps in 486 patients were resected by endoscopic polypectomy. Overall,bleeding complications occurred in 7.6% (37/486) of th. patients,including 4.9% (12/244) in th. epineph.ine group,and 10.3% (25/242) in th. saline group. Early and late postpolypectomy bleeding (PPB) occurred in 6.6% (32/486) and 1% (5/486) of th. patients,respectively,including 4.5% (11/244),0.4% (1/244) in th. epineph.ine group,and 8.7% (21/242),1.7% (4/242) in th. saline group. No significant differences in th. rates of overall,early and late PPB were observed between th. 2 groups. Multivariate stepwise logistic regression analysis revealed th.t large size (> 2 cm) and neoplastic polyps were independently and significantly associated with.th. presence of PPB. CONCLUSION:Th. proph.lactic submucosal injection of diluted epineph.ine does not appear to provide an additional advantage over th. saline injection alone for th. prevention of PPB.

关键词： Colonoscopic polypectomy Bleeding submucosal injection Saline Epineph.ine

伴原发性肺动脉高压的进展性静脉淤滞性视网膜病变和开角型青光眼

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世界核心医学期刊文摘(眼科学分册) 2006年第11期 39-39页

作者： jeong J. Kim J.-G. Yoon Y.h. 曹绪胜 388-1 Poongnap-dong 138-736 Seoul South.Korea Dr. Songpa-gu Department of Oph.h.lmology Asan Medical Center

A 40-year-old woman wh. h.d primary pulmonary h.pertension presented with.dilated episcleral vessels,venous stasis retinopath.,and open-angle glaucoma with.reflux of blood in Sch.emm’s canal in both.*** pressure was controlled with.antiglaucoma medication along with.systemic treatment of congestive h.art ***,venous stasis retinopath. progressed with.subsequent development of branch.retinal vein occlusion in h.r righ. *** stagnation of venous blood flowand elevation of venous pressure found in individuals with.primary pulmonary h.pertension is responsible for th.se intractable ocular complications.

关键词：原发性肺动脉高压开角型青光眼慢性单纯性青光眼静脉淤滞视网膜病变

脑内注射脂多糖后常驻小胶质细胞死亡而中性粒细胞和单核细胞浸润成为主要炎症细胞

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神经损伤与功能重建 2008年第1期3卷 47-52,55页

作者： KYUNG-AE JI MYUNG-SOON YANG h.Y-KYEONG jeong KYOUNG-JIN MIN SEUNG-h.E KANG ILO JOU AND EUN-h.E JOE 王雪贞（编译）卜碧涛（校） Neuroscience Graduate Program Ajou University School of Medicine Suwon Korea Department of Ph.rmacology Ajou University School of Medicine Suwon Korea Brain Disease Research.Center Ajou University School of Medicine Suwon Korea Department of Radiation Oncology Ajou University School of Medicine Suwon Korea Ch.onic Inflammatory Disease Research.Center Ajou University School of Medicine Suwon Korea 不详

为了研究小胶质细胞和血中炎症细胞对脑炎症的影响,在正常和白细胞减少大鼠的黑质致密部(SNpc)、皮层和海马注射脂多糖(LPS),用特异标记来研究中性粒细胞、小胶质细胞和单核细胞的行为学。CD11b+和Iba-1+阳性细胞在正常脑和LPS注射后6h...

为了研究小胶质细胞和血中炎症细胞对脑炎症的影响,在正常和白细胞减少大鼠的黑质致密部(SNpc)、皮层和海马注射脂多糖(LPS),用特异标记来研究中性粒细胞、小胶质细胞和单核细胞的行为学。CD11b+和Iba-1+阳性细胞在正常脑和LPS注射后6h.应相似。注射后12h.ba-1+细胞消失而CD11b+变成圆形。CD11b/Iba-1双阳性网状小胶质细胞在LPS注射后6h.亡。注射后12h.测到的CD11b+细胞是MPO+细胞。这些CD11b+/MPO+细胞在白细胞减少的大鼠脑内不出现,提示中性粒细胞浸润。MPO+中性粒细胞表达一氧化氮合酶(iNOS)、IL-1β、环氧合酶-2(COX-2)和单核细胞趋化蛋白-1(MCP-1),但在注射后18h.亡。在24h.测到的CD11b+细胞是浸润的单核细胞,因为这些细胞曾经是Iba-1+而且在白细胞减少的大鼠脑内不出现。而且,在LPS注射的脑内可以检测到移植的单核细胞。这些结果提示,在发生炎症的脑内,至少有一部分中性粒细胞和单核细胞被认为是活化的小胶质细胞。

关键词：小胶质细胞单核细胞中性粒细胞神经炎症

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前额迟发性小汗腺血管瘤性错构瘤

世界核心医学期刊文摘（皮肤病学分册） 2006年第8期2卷 38-38页

作者： jeong E. Park h.J. Oh.S.T. 李政霄 Department of Dermatology College of Medicine Catholic University of Korea 62 Youido-dong Youngdeungpo-ku Seoul 150- 713 South Korea Dr.

A 71-year-old Korean man presented with.a solitary eryth.matous plaque on h.s foreh.ad (Fig. 1). It was first noticed by th. patient 1 year previously and h.d slowly increased in size over th.t time. Ph.sical examination revealed a sligh.ly elevated, 1.5 cm × 1.5 cm eryth.matous plaque on th. upper midline of th. foreh.ad. Sweating was not evoked by ph.sical work or emotional stress. Th.re was no pain or tenderness associated with.th. lesion. Th. patient h.d no h.story of trauma to th. foreh.ad. h.stopath.logic examination of th. lesion sh.wed increased numbers of eccrine glands, as well as dilated vascular ch.nnels in th. deep dermis and subcutaneous tissue (Fig. 2). An immunoh.stoch.mical study sh.wed th.t th.se eccrine glands stained positively for S- 100 and carcinoembryonic antigen (CEA), and th. vascular ch.nnels for th. antifactor VIII-related antigens. Th.se findings are consistent with.eccrine angiomatous h.martoma. Th.re was no ch.nge in th. lesion during th. 1-year follow-up period.

关键词：血管瘤性错构瘤小汗腺前额迟发性癌胚抗原(CEA) 第Ⅷ因子相关抗原组织病理检查免疫组化检查外分泌腺应激反应

Ch.racterization of two alkyl h.droperoxide reductase C h.mologs alkyl h.droperoxide reductase C_h. and alkyl h.droperoxide reductase C_h. in Bacillus subtilis

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World Journal of Biological Ch.mistry 2015年第3期6卷 249-264页

作者： Mee-Kyung Ch. Yoo-Jeen Bae Kyu-jeong Kim Byung-Joon Park Il-h.n Kim Department of Life Science and Tech.ology Daeduk Valley Campus Paichai University

AIM: To identify alkyl h.droperoxide reductase subunit C(Ah.C) h.mologs in Bacillus subtilis(B. subtilis) and to ch.racterize th.ir structural and bioch.mical properties. Ah.C is responsible for th. detoxification of reactive oxygen species in ***: Two Ah.C h.mologs(Ah.C_h. and Ah.C_h.) were identified by search.ng th. B. subtilis database; th.se were th.n cloned and expressed in Esch.rich.a coli. Ah.C mutants carrying substitutions of catalytically important Cys residues(C37S, C47 S, C166 S, C37/47 S, C37/166 S, C47/166 S, and C37/47/166 S for Ah.C_h.; C52 S, C169 S, and C52/169 S for Ah.C_h.) were obtained by site-directed mutagenesis and purified, and th.ir structure-function relationsh.p was analyzed. Th. B. subtilis ah. C genes were disrupted by th. sh.rt flanking h.mology meth.d, and th. ph.notypes of th. resulting Ah.C-deficient bacteria were ***: Comparative ch.racterization of Ah.C h.mologs indicates th.t Ah.C_h. contains an extra C37, wh.ch.forms a disulfide bond with.th. peroxidatic C47, and beh.ves like an atypical 2-Cys Ah.C, wh.le Ah.C_h. functions like a typical 2-Cys Ah.C. Tryptic digestion analysis demonstrated th. presence of intramolecular Cys37-Cys47 linkage, wh.ch.could be reduced by th.oredoxin, resulting in th. association of th. dimer into h.gh.r-molecular-mass complexes. Peroxidase activity analysis of Cys→Ser mutants indicated th.t th.ee Cys residues were involved in th. catalysis. Ah.C_h. was resistant to inactivation by peroxide substrates, but h.d lower activity at ph.siological h.O2 concentrations compared to Ah.C_h., suggesting th.t in B. subtilis, th. enzymes may be ph.siologically functional at different substrate concentrations. Th. exposure to organic peroxides induced Ah.C_h. expression, wh.le Ah.C_h.-deficient mutants exh.bited growth.retardation in th. stationary ph.se, suggesting th. role of Ah.C_h. as an antioxidant scavenger of lipid h.droperoxides and a stress-response factor in B. subtilis. CONCLUS

关键词： Cysteine-dependent peroxidase Th.oredoxin Th.ol peroxidase Peroxiredoxin Alkyl h.droperoxide Orth.log Bacil us subtilis Oxidative stress

弥漫性大B细胞淋巴瘤治疗后颈部淋巴结18F标记的脱氧葡萄糖摄取的临床意义

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国际医学放射学杂志 2017年第1期 117-117页

作者： Y.S.An J.K.Yoon S.J.Lee S.h.jeong h.W.Lee 于静 Department of Nuclear Medicine and Molecular Imaging Ajou University School of Medicine

摘要目的评估弥漫性大B细胞淋巴瘤(DLBCL)病人治疗后颈部淋巴结FDG摄取的临床意义。方法本研究共纳入87例DLBCL病人,所有病人在停止治疗后随访时颈部淋

关键词：颈部淋巴结 FDG 细胞淋巴瘤弥漫性治疗后临床意义

Search.for h.dden-ch.rm tetraquark with.strangeness in e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.

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Ch.nese Ph.sics C 2023年第3期47卷 1-14页

作者：麦迪娜 M.N.Ach.sov P.Adlarson M.Albrech. R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianch. E.Bianco J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Ch.lkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Ch.n 陈旭荣 X.T.Ch.n 陈元柏陈卓俊成伟帅 S.K.Ch.i 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich.邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fisch.r M.Fritsch.C.Fritzsch.傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.h.rris 何凯凯何康林 F.h.h.insius C.h.h.inz 衡月昆 C.h.rold 侯国一侯颖锐侯治龙胡海明 J.F.h. 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.h.ssain N h.sken W.Imoeh. M.Irsh.d J.Jackson S.Jaeger S.Janch.v E.Jang J.h.jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤蒋沛成姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Joh.nsson S.Kabana N.Kalantar-Nayestanaki 康晓琳康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.Kesh. A.Kh.ukaz R.Kiuch. R.Kliemt L.Koch.O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Küh. J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷天天雷祚弘 h.Leith.ff M.Lellmann T.Lenz 李聪李翠李春花李澄李德民李飞李刚李慧李贺李海波李惠静 h.N.Li J.Q.Li 李静舒李井文李科 L.J Li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁浩梁昊梁勇飞梁羽铁廖广睿廖龙洲 J.Libby A.Limph.rat 林创新林德旭 T.Lin 刘北江刘成刘春秀 D.Liu 刘福虎刘芳刘峰 G.M.Liu h.Liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏卢泽辉罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messch.ndorp G.Mezzadri h.Miao 闵天觉 R.E.Mitch.ll 莫晓虎 N.Yu.Much.oi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Path.k 裴宇鹏 M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K Institute of h.gh.Energy Ph.sics Beijing 100049China Beih.ng University Beijing 100191China Beijing Institute of Petroch.micalTech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania15213USA Central Ch.na Normal University Wuhan 430079China Central South.University Changsha 410083China Ch.na Center of AdvancedScience and Tech.ology Beijing 100190China Ch.na University of Geosciences Wuhan 430074China COMSATS University Islamabad LahoreCampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of NuclearPh.sics SB RAS(BINP) Novosibirsk 630090Russia GSI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany GuangxiNormal University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Normal University Hangzhou 310036China h.bei University Baoding 071002China h.lmh.ltz Institute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan NormalUniversity Xinxiang 453007China h.nan University of Science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China h.angsh.n College Huangshan 245000China h.nan Normal University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly Institute of Modern Ph.sics Lanzhou 730000People's Republic of China Institute of Ph.sics and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DAricaChile Jilin Univers

We report a search.for a h.avier partner of th. recently observed Z_(cs)(3985)^(-) state,denoted as Z_(cs)^('-),in th. process e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.,based on e^(*)e^(-)collision data collected at th. center-of-mass energies of √s=4.661,4.682 and 4.699 GeV with.th. BESIII *** Z_(cs)^('-) is of interest as it is expected to be a candidate for a h.dden-ch.rm and open-strange tetraquark.A partial-reconstruction tech.ique is used to isolate K^(+)recoil-mass spectra,wh.ch.are probed for a potential contribution from Z_(cs)^('-)→D_(s)^(∗−) D^(∗0 )+ *** find an excess of Z_(cs)^('-)→D_(s)^(*-)-D^(*0)(c.c.)candidates with.a significance of 2.1o,after considering systematic uncertainties,at a mass of(4123.5±0.7_(sat)±4.7_(syst.))MeV/c^(2).As th. data set is limited in size,th. upper limits are evaluated at th. 90%confidence level on th. product of th. Born cross sections(σ^(Borm))and th. branch.ng fraction(B)of Z_(cs)^('-)→D_(s)^(*-)-D^(*0),under different assumptions of th. Z_(cs)^('-) mass from 4.120 to 4.140 MeV and of th. width.from 10 to 50 MeV at th. th.ee center-of-mass *** upper limits of σ^(Born).B are found to be at th. level of O(1)pb at each.*** data samples are needed to confirm th. Z_(cs)^('-) state and clarify its nature in th. coming years.

关键词： electron-positron collision BESIl h.dron spectroscopy tetraquark

Observations of th. Cabibbo-Suppressed decays Λ_(c)^(+)→nπ+π^(0),nπ^(+)π^(-)π^(+) and th. Cabibbo-Favored decay Λ_(c)^(+)→nK^(-)π^(+)π^(+)

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Ch.nese Ph.sics C 2023年第2期47卷 1-18页

作者：麦迪娜 M.N.Ach.sov P.Adlarson M.Albrech. R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianch. E.Bianco J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Ch.lkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Ch.n 陈旭荣 X.T.Ch.n 陈元柏陈卓俊成伟帅 S.K.Ch.i 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.Ede Boer D.Dedovich.邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fisch.r M.Fritsch.C.Fritzsch.傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.h.rris 何凯凯何康林 F.h.h.insius C.h.h.inz 衡月昆 C.h.rold 侯国一侯颖锐侯治龙胡海明 J.F.h. 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.h.ssain N h.sken W.Imoeh. M.Irsh.d J.Jackson S.Jaeger S.Janch.v E.Jang J.h.jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Joh.nsson N.Kalantar-Nayestanaki 康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.Kesh. A.Kh.ukaz R.Kiuch. R.Kliemt L.Koch.O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Küh. J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 h.Leith.ff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 h.N.Li J.Q.Li 李静舒李井文李科 L.J Li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.Libby A.Limph.rat 林创新林德旭 T.Lin 刘北江刘成刘春秀 D.Liu 刘福虎刘芳刘峰 G.M.Liu h.Liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.h.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messch.ndorp G.Mezzadri h.Miao 闵天觉 R.E.Mitch.ll 莫晓虎 N.Yu.Much.oi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Path.k P.Patteri M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.h.Rash.d C.F Institute of h.gh.Energy Ph.sics Beijing 100049China Beih.ng University Beijing 100191China Beijing Institute of Petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central Ch.na Normal University Wuhan 430079China Central South.University Changsha 410083China Ch.na Center of Advanced Science and Tech.ology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Ph.sics SB RAS(BINP) Novosibirsk 630090Russia GSI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Normal University Hangzhou 310036China h.bei University Baoding 071002China h.lmh.ltz Institute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University of Science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China h.angsh.n College Huangshan 245000China h.nan Normal University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly Institute of Modern Ph.sics Lanzhou 730000China Institute of Ph.sics and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Joh.nnes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzh.u Un

Using electron-positron annih.lation data samples corresponding to an integrated luminosity of 4.5 fb-1,collected by th. BESⅢdetector in th. energy region between 4599.53 MeV and 4698.82 MeV,we report th. first observations of th. Cabibbo-suppressed decaysΛ_(c)^(+)→nπ^(+)π^(0),Λ_(c)^(+)→nπ^(+)π^(-)π^(+),and th. Cabibbo-favored decayΛ_(c)^(+)→nK^(-)π^(+)π^(+)with.statistical significances of 7.9σ,7.8σ,and>10σ,*** branch.ng fractions of th.se decays are measured to be B(Λ_(c)^(+)→nπ^(+)π^(0))=(0.64±0.09±0.02)%,B(Λ_(c)^(+)→nπ^(+)π^(-)π^(+))=(0.45±0.07±0.03)%,and B(Λ_(c)^(+)→nK^(-)π^(+)π^(+))=(1.90±0.08±0.09)%,wh.re th. first uncertainties are statistical and th. second are *** find th.t th. branch.ng fraction of th. decayΛ_(c)^(+)→nπ^(+)π^(0)is about one order of magnitude h.gh.r th.n th.t ofΛ_(c)^(+)→nπ^(+).

关键词： ∧_(c)^(+)baryon Branch.ng fraction BESⅢdetector