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不同种公牛精液对牛卵母细胞体外受精效果影响的研究

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内蒙古大学学报（自然科学版） 2000年第3期31卷 307-310页

作者：刘东军廛洪武 Mal Brandon 旭日干内蒙古大学实验动物研究中心内蒙古呼和浩特010021 澳大利亚墨尔本大学兽医学院动物生物工程中心

分别利用不同个体的海伏特、安格斯和荷斯坦种公牛精液进行体外受精 ,观察了不同品种不同个体种公牛精液的体外受精效果 .利用五种海伏特种公牛精液进行体外受精后卵裂率为 1 7.6%～ 74 .7% ,囊胚发育率为 1 .0 %～ 3 2 .6% ,不同个体... 详细信息

分别利用不同个体的海伏特、安格斯和荷斯坦种公牛精液进行体外受精 ,观察了不同品种不同个体种公牛精液的体外受精效果 .利用五种海伏特种公牛精液进行体外受精后卵裂率为 1 7.6%～ 74 .7% ,囊胚发育率为 1 .0 %～ 3 2 .6% ,不同个体间差异极显著 ( P<0 .0 1 ) .利用五种安格斯种公牛精液进行体外受精后卵裂率为 3 4 .7%～ 85.3 % ,囊胚发育率为 6.2 %～4 0 .5% ,不同个体间具极显著差异 ( P<0 .0 1 ) .利用三种荷斯坦种公牛精液进行体外受精后卵裂率为 61 .6%～ 76.4 % ,囊胚发育率为 1 2 .8%～ 1 5.6% ,无显著差异 .结果表明不同种公牛精液的体外受精效果具有显著差异 ,在用于体外受精时需认真选择 .

关键词：体外受精体外发育牛卵母细胞公牛精液

伴先兆偏头痛和不伴先兆偏头痛大学生患者合并焦虑抑郁症状的差异性比较

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中国临床神经科学 2020年第6期28卷 633-640页

作者：杨皓迪刘恩卓王青云伍易艳蒋成冉敬丹谢雨欣王蔚东魏作霖林薇薇彭程钰罗家明川北医学院附属医院神经内科南充市637000 川北医学院精神卫生学院南充市637000

目的探讨伴先兆偏头痛(MA)和不伴先兆偏头痛(MOA)大学生患者合并焦虑、抑郁症状的情况及差异。方法2018年7月至2019年7月,将中国四川省北部川北医学院通过整群抽样的方式,应用头痛筛查量表(ID-Migraine)初步筛选偏头痛病例,对ID-Migrain... 详细信息

目的探讨伴先兆偏头痛(MA)和不伴先兆偏头痛(MOA)大学生患者合并焦虑、抑郁症状的情况及差异。方法2018年7月至2019年7月,将中国四川省北部川北医学院通过整群抽样的方式,应用头痛筛查量表(ID-Migraine)初步筛选偏头痛病例,对ID-Migraine初筛结果阳性的大学生进一步通过神经内科医生根据ICHD-3beta量表明确诊断为偏头痛患者纳入研究,按照是否伴先兆症状分为MA组和MOA组。伦理审核后采集个人信息和头痛基本信息,使用汉密尔顿焦虑(HAMA)量表、汉密尔顿抑郁(HAMD)量表进行头痛和精神状况评估。结果1037例大学生完成了ID-Migraine评估,其中579例诊断为偏头痛,纳入统计分析数据的有561例。MA组患者75例,合并一种及以上精神障碍的有65/75例(86.67%);MOA组患者486例,合并焦虑或者抑郁的有369/486例(75.92%),两组间比较差异有统计学意义(P=0.039)。MA组的头痛持续时间及偏头痛家族史与MOA组比较,差异有显著统计学意义(分别P<0.001和=0.018),MA组的HAMA量表(P=0.005)和HAMD量表(P=0.000)评分均高于MOA组。结论医学院学生偏头痛患者合并焦虑、抑郁发病率高,MA组高于MOA组,MA对患者精神情绪的影响程度更重。

关键词：伴先兆偏头痛不伴先兆偏头痛焦虑抑郁大学生

基于单中心的中国人群自发性冠状动脉夹层临床特征与治疗策略

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中国临床医学 2018年第2期25卷 188-193页

作者：黄浙勇杨虹波宋亚楠石洪涛戴宇翔李晨光陆浩徐世坤黄东马剑英姚康张峰王齐兵钱菊英葛均波复旦大学附属中山医院心内科上海200032

目的:基于单中心的临床资料探讨中国人群自发性冠状动脉夹层(spontaneous coronary artery dissection,SCAD)的临床特点、治疗选择和临床转归。方法:对2015年3月至2016年12月复旦大学附属中山医院单中心行冠状动脉造影(coronary angiogr... 详细信息

目的:基于单中心的临床资料探讨中国人群自发性冠状动脉夹层(spontaneous coronary artery dissection,SCAD)的临床特点、治疗选择和临床转归。方法:对2015年3月至2016年12月复旦大学附属中山医院单中心行冠状动脉造影(coronary angiography,CAG)的16 526例连续性患者进行回顾性分析,筛选出17例SCAD患者。分析其危险因素、临床表现、病变特点、治疗方案和临床转归。结果:17例SCAD患者年龄26~67岁,平均(49.06±10.73)岁;男性4例、女性13例。所有患者均以急性冠脉综合征起病,其中ST段抬高型心肌梗死10例、非ST段抬高型心肌梗死3例、不稳定型心绞痛4例。17例患者共发现20处夹层,夹层主要发生于左前降支(10例,50%)和右冠状动脉(7例,35%),少数累及对角支(2例,10%)和回旋支(1例,5%)。20处夹层Ⅰ型5处、ⅡA型7处、ⅡB型6处、Ⅲ型2处。夹层远段的心肌梗死溶栓治疗(TIMI)血流分级0级4处、1级2处、3级14处。7例患者保守治疗,1例患者行单纯球囊扩张治疗,临床随访均无心绞痛发作。9例患者接受支架植入,每例平均(2.44±1.13)枚。介入过程中共5例患者出现血肿扩展,其中1例出现新发急性心肌梗死,另1例死亡。结论:缺乏冠心病危险因素的中青年女性急性冠脉综合征患者要考虑SCAD可能;临床应熟悉SCAD的造影表现,必要时行血管内超声确诊;确诊后一般采用药物保守治疗,高危患者接受经皮冠状动脉介入治疗(PCI)时要慎防夹层扩展。

关键词：自发性冠状动脉夹层急性冠脉综合征经皮冠状动脉介入治疗血管内超声

粗厚山羊草(***)细胞质普通小麦核代换系在中国不同光温条件地点的雄性育性变异

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西北植物学报 1999年第6期19卷 10-16页

作者：何蓓如孟荣华宋喜悦胡银刚马翎建奚亚军徐浩刘曙东杨存义西北农业大学农学系陕西杨陵712100

5个普通小麦品系的粗厚山羊草 4X、6X种细胞质的 7个核代换系在中国昆明、元谋、杨陵、互助、依安 5个不同纬度地点种植的自交结实率 ,结合各点光温条件的分析表明 :粗厚山羊草细胞质普通小麦核代换系的雄性育性随日长增加而下降 ,6X种... 详细信息

5个普通小麦品系的粗厚山羊草 4X、6X种细胞质的 7个核代换系在中国昆明、元谋、杨陵、互助、依安 5个不同纬度地点种植的自交结实率 ,结合各点光温条件的分析表明 :粗厚山羊草细胞质普通小麦核代换系的雄性育性随日长增加而下降 ,6X种细胞质核代换系在日长≥ 1 4.2 8h开始出现完全雄性不育 ,4X种细胞质核代换系在日长≥ 1 5.38h开始出现完全雄性不育 ;该细胞质核代换系的雄性育性在日长因子主控下 ,对温度变化也表现一定敏感性。粗厚山羊草细胞质背景下不同核基因型对光、温条件的敏感性有显著差异 ,核质互作效应是这种敏感性的遗传方式 ;粗厚山羊草 4X、6X种细胞质的光、温敏感性存在差异 ,6X种细胞质的光、温敏感性高于 4X种细胞质。

关键词：粗厚山羊草细胞质普通小麦核代换系中国光温条件雄性育性变异

关于中国风电和光伏发电补贴缺口和大比例弃电问题的研究

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国际经济评论 2018年第4期 67-85页

作者：北京大学国家发展研究院能源安全与国家发展研究中心中国人民大学经济学院能源经济系联合课题组陈醒(课题组成员) 郭巍(课题组成员) 黄滢(课题组成员) 黄卓(课题组成员) 胡大源(课题组成员) 刘满平(课题组成员) 唐·罗伯特(课题组成员) 宋枫(课题组成员) 夏凡(课题组成员) 谢伦裕(课题组成员) 徐晋涛(课题组成员) 王敏(文章执笔人) 俞秀梅(课题组成员) 北京大学·国家发展研究院能源安全与国家发展研究中心

中国当下可再生能源发展面临补贴资金缺口急剧膨胀以及"弃风弃光"居高不下的双重挑战。本研究在实地调研基础上,讨论分析了现有固定上网电价制度如何在制度层面上形成"地方请客、中央埋单"的资源配置逻辑,并与僵化的电力市场体制产生种... 详细信息

中国当下可再生能源发展面临补贴资金缺口急剧膨胀以及"弃风弃光"居高不下的双重挑战。本研究在实地调研基础上,讨论分析了现有固定上网电价制度如何在制度层面上形成"地方请客、中央埋单"的资源配置逻辑,并与僵化的电力市场体制产生种种摩擦和矛盾,进而形成上述发展困局的。在进一步分析总结当前经济新形势和可再生能源发展国际经验的基础上,本文提出解决问题的思路,并立足还原风电和光伏发电的商品和环境属性,对如何调整和过渡当前的可再生能源补贴政策提出相应政策建议。

关键词：可再生能源风电光伏发电补贴政策可再生能源弃电电力市场

Decline in subarachnoid haemorrhage volumes associated with the first wave of the COVID- 19 pandemic

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Stroke & Vascular Neurology 2021年第4期6卷 542-552,I0026-I0032页

作者： Thanh N Nguyen Diogo C Haussen Muhammad M Qureshi Hiroshi Yamagami Toshiyuki Fujinaka Ossama Y Mansour Mohamad Abdalkader Michael Frankel Zhongming Qiu Allan Taylor Pedro Lylyk Omer F Eker Laura Mechtouff Michel Piotin Fabricio Oliveira Lima Francisco Mont'Alverne Wazim Izzath Nobuyuki Sakai Mahmoud Mohammaden Alhamza R Al-Bayati Leonardo Renieri Salvatore Mangiafico David Ozretic Vanessa Chalumeau Saima Ahmad Umair Rashid Syed Irteza Hussain Seby John Emma Griffin John Thornton Jose Antonio Fiorot Rodrigo Rivera Nadia Hammami Anna M Cervantes-Arslanian Hormuzdiyar H Dasenbrock Huynh Le Vu Viet Quy Nguyen Steven Hetts Romain Bourcier Romain Guile Melanie Walker Malveeka Sharma don Frei Pascal Jabbour Nabeel Herial Fawaz Al-Mufti Atilla Ozcan Ozdemir Ozlem Aykac Dheeraj Gandhi Chandril Chugh Charles Matouk Pascale Lavoie Randall Edgell Andre Beer-Furlan Michael Chen Monika Killer-Oberpfalzer Vitor Mendes Pereira Patrick Nicholson Vikram Huded Nobuyuki Ohara Daisuke Watanabe dong Hun Shin Pedro SC Magalhaes Raghid Kikano Santiago Ortega-Gutierrez Mudassir Farooqui Amal Abou-Hamden Tatsuo Amano Ryoo Yamamoto Adrienne Weeks Elena A Cora Rotem Sivan-Hoffmann Roberto Crosa Markus Möhlenbruch Simon Nagel Hosam Al-Jehani Sunil A Sheth Victor S Lopez Rivera James E Siegler Achmad Fidaus Sani Ajit S Puri Anna Luisa Kuhn Gianmarco Bernava Paolo Machi Daniel G Abud Octavio M Pontes-Neto Ajay K Wakhloo Barbara Voetsch Eytan Raz Shadi Yaghi Brijesh P Mehta Naoto Kimura Mamoru Murakami Jin Soo Lee Ji Man Hong Robert Fahed Gregory Walker Eiji Hagashi Steve M Cordina Hong Gee Roh Ken Wong Juan F Arenillas Mario Martinez-Galdamez Jordi Blasco Alejandro Rodriguez Vasquez Luisa Fonseca M Luis Silva Teddy Y Wu Simon John Alex Brehm Marios Psychogios William J Mack Matthew Tenser Tatemi Todaka Miki Fujimura Roberta Novakovic Jun Deguchi Yuri Sugiura Hiroshi Tokimura Rakesh Khatri Michael Kelly Lissa Peeling Yuichi Murayama Hugh Stephen Winters Johnny Wong Mohamed Teleb Jeremy Payne Hiroki Fukuda Kosuke Miyake Junsuke Shimbo Yusuke Sug Neurology RadiologyBoston Medical CenterBostonMassachusettsUSA Neurology Marcus Stroke&Neuroscience CenterGrady Memorial HospitalEmory University School of MedicineAtlantaGAUSA Radiology Radiation OncologyBoston University School of MedicineBostonMassachusettsUSA Neurology National Hospital Organization Osaka National HospitalOsakaJapan Neurosurgery National Hospital Organization Osaka National HospitalOsakaJapan Neurology Alexandria UniversityAlexandriaEgypt Radiology Boston Medical CenterBostonMassachusettsUSA Department of Neurology Xinqiao HospitalChongqingChina Neurosurgery University of Cape TownRondeboschWestern CapeSouth Africa Neurosurgery Interventional NeuroradiologyClinica La Sagrada FamiliaBuenos AiresArgentina Neuroradiologie Neurologie VasculaireHospices Civils de LyonLyonAuvergne-Rhône AlpesFrance Neurologie Vasculaire Hospices Civils de LyonLyonAuvergne-Rhône AlpesFrance Interventional Neuroradiology Fondation Ophtalmologique Adolphe de RothschildParisÎle-de FranceFrance Neurology Hospital Geral de FortalezaFortalezaBrazil Interventional Neuroradiology Hospital Geral de FortalezaFortalezaBrazil Neuroradiology Nottingham University Hospitals NHS TrustNottinghamUK Department of Neurosurgery Kobe City Medical Center General HospitalKobeHyogoJapan Interventional Neurovascular Unit University Hospital CareggiFirenzeToscanaItaly Neuroradiology University Hospital Centre ZagrebZagrebCroatia Interventional Neuroradiology Hopital BicetreLe Kremlin-BicetreFrance Stroke and Interventional Neuroradiology Lahore General HospitalLahorePakistan Neurological Institute Cleveland Clinic Abu DhabiAbu DhabiUAE Department of Radiology Beaumont HospitalDublinIreland Neurology Stroke UnitHospital-Estadual CentralVitoriaBrazil Neuroradiology Instituto de Neurocirugia Dr AsengoSantiagoChile Interventional Neuroradiology Institut National de NeurologieTunisTunisia Neurology Boston Medical CenterBostonMassachusettsUSA Neurosurgery Boston Medical Center

Background During the COVID-19 pandemic,decreased volumes of stroke admissions and mechanical thrombectomy were *** study’s objective was to examine whether subarachnoid haemorrhage(SAH)hospitalisations and ruptured aneurysm coiling interventions demonstrated similar *** We conducted a cross-sectional,retrospective,observational study across 6 continents,37 countries and 140 comprehensive stroke *** with the diagnosis of SAH,aneurysmal SAH,ruptured aneurysm coiling interventions and COVID-19 were identified by prospective aneurysm databases or by International Classification of Diseases,10th Revision,*** 3-month cumulative volume,monthly volumes for SAH hospitalisations and ruptured aneurysm coiling procedures were compared for the period before(1 year and immediately before)and during the pandemic,defined as 1 March-31 May *** prior 1-year control period(1 March-31 May 2019)was obtained to account for seasonal *** There was a significant decline in SAH hospitalisations,with 2044 admissions in the 3 months immediately before and 1585 admissions during the pandemic,representing a relative decline of 22.5%(95%CI−24.3%to−20.7%,p<0.0001).Embolisation of ruptured aneurysms declined with 1170-1035 procedures,respectively,representing an 11.5%(95%CI−13.5%to−9.8%,p=0.002)relative *** analysis was noted for aneurysmal SAH hospitalisation decline from 834 to 626 hospitalisations,a 24.9%relative decline(95%CI−28.0%to−22.1%,p<0.0001).A relative increase in ruptured aneurysm coiling was noted in low coiling volume hospitals of 41.1%(95%CI 32.3%to 50.6%,p=0.008)despite a decrease in SAH admissions in this *** There was a relative decrease in the volume of SAH hospitalisations,aneurysmal SAH hospitalisations and ruptured aneurysm embolisations during the COVID-19 *** findings in SAH are consistent with a decrease in other emergencies,such as stroke and myocardial infarction.

关键词： diagnosis representing subarachnoid

Line-of-shower trigger method to lower energy threshold for GRB detection using LHAASO-WCDA

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Radiation Detection Technology and Methods 2021年第4期5卷 531-541页

作者： F.Aharonian Q.An Axikegu L.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi H.Cai J.T.Cai Z.Cao Z.Cao J.Chang J.F.Chang X.C.Chan B.M.Chen J.Chen L.Chen L.Chen L.Chen M.J.Chen M.L.Chen Q.H.Chen S.H.Chen S.Z.Chen T.L.Chen X.L.Chen Y.Chen N.Chen Y.D.Chen S.W.Cui X.H.Cui Y.D.Cui B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu D.della Volpe B.D’Ettorre Piazzoli X.J.don J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fan C.F.Feng L.Feng S.H.Fen Y.L.Feng B.Gao C.D.Gao Q.Gao W.Gao M.M.Ge L.S.Gen G.H.Gong Q.B.Gou M.H.Gu J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.L.He X.B.He Y.He M.Heller Y.K.Hor C.Hou X.Hou H.B.Hu S.Hu S.C.Hu X.J.Hu D.H.Huang Q.L.Huan W.H.Huang X.T.Huang Z.C.Huang F.Ji X.L.Ji H.Y.Jia K.Jiang Z.J.Jiang C.Jin D.Kuleshov K.Levochkin B.B.Li C.Li C.Li F.Li H.B.Li H.C.Li H.Y.Li J.Li K.Li W.L.Li X.Li X.Li X.R.Li Y.Li Y.Z.Li Z.Li Z.Li E.W.Liang Y.F.Liang S.J.Lin B.Liu C.Liu D.Liu H.Liu H.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu M.Y.Liu R.Y.Liu S.M.Liu W.Liu Y.N.Liu Z.X.Liu W.J.Long R.Lu H.K.Lv B.Q.Ma L.L.Ma X.H.Ma J.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y.Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi D.Ruffolo V.Rulev A.Sáiz L.Shao O.Shchegolev X.D.Shen J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wan C.Wang H.Wang H.G.Wang J.C.Wang J.S.Wang L.P.Wang L.Y.Wan R.N.Wang W.Wang W.Wang X.G.Wang X.J.Wan X.Y.Wang Y.D.Wan Y.J.Wan Y.P.Wang Z.Wang Z.Wang Z.H.Wang Z.X.Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.X.Wu X.F.Wu S.Q.Xi J.Xia J.J.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.L.Xin Y.Xing D.L.Xu R.X.Xu L.Xue D.H.Yan C.W.Yang F.F.Yang J.Y.Yang L.L.Yang M.J.Yan R.Z.Yang S.B.Yang Y.H.Yao Z.G.Yao Y.M.Ye L.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.Zhang H.M.Zhang H.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang L.Zhang L.X.Zhang P.F.Zhang P.P.Zhang R.Zhang S.R.Zhang S.S.Zhan X.Zhang X.P.Zhan Y.Zhan Y.Zhang Y.F.Zhang Y.L.Zhan B.Zhao J.Zhao L.Zhao L.Z.Zhao S.P.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou J.N.Zhou P.Zhou R.Zhou X.X.Zhou C.G. Key Laboratory of Particle Astrophysics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key Laboratory of Particle Detection and Electronics BeijingChina University of Science and Technology of China Hefei 230026AnhuiChina Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina School of Physical Science and Technology Guangxi UniversityNanning 530004GuangxiChina Hebei Normal University Shijiazhuang 050024HebeiChina School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001HenanChina School of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237ShandongChina Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Physics Sichuan UniversityChengdu 610065SichuanChina Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina School of Physic

Purpose Observation of high energy and very high emission from Gamma Ray Bursts(GRBs)is crucial to study the gigantic explosion and the underline *** a large field-of-view and almost full duty cycle,the Water Cherenkov Detector Array(WCDA),a sub-array of the Large High Altitude Air Shower Observatory(LHAASO),is appropriate to monitor the very high energy emission from unpredictable transients such as *** Nevertheless,the main issue for an extensive air shower array is the high energy threshold which limits the horizon of the *** address this issue a new trigger method is developed in this article to lower the energy threshold of WCDA for GRB *** The proposed method significantly improves the detection efficiency of WCDA for gamma-rays around the GRB direction at 10-300 *** sensitivity of the WCDA for GRB detection with the new trigger method is *** achieved sensitivity of the quarter WCDA array above 10 GeV is comparable with that of *** data analysis process and corresponding fluence upper limit for GRB 190719C is presented as an example.

关键词： LHAASO WCDA GRB