Results 51 to 60 of about 19,043 (173)
Investigate the Effect of Resveratrol on Postovulatory Aging of Mouse Oocytes [PDF]
, 2016 大多数辅助生殖技术在体外操作，随着操作时间的延长，未受精的第二次减数分裂中期的卵母细胞会经历老化的过程，此过程限制了卵母细胞发展的潜力和受精的能力，因此如何延缓卵母细胞的老化为操作争取更多的时间是提高辅助生殖技术成功率的关键。然而，至今仍没有合适的方法能克服卵母细胞在体外发生的老化。本文的研究目的是探讨白藜芦醇是否可以改善排卵后老化的卵母细胞在体外发生的不良结局，之前有研究表明白藜芦醇可以提高不同物种在体外受精的概率。我们用小鼠第二次减数分裂中期的卵母细胞作为对照组 ...
刘蕊
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2010 目的探讨白血病免疫分型与FAB分型的关系,以指导临床进行分析与治疗。方法对505例白血病患者分别进行细胞形态学检查和流式细胞术（FCM）免疫分型,并对2种检查结果进行分析。结果①505例白血病患者中FAB初诊急性髓细胞白血病（AML）248例,急性淋巴细胞白血病（ALL）200例,慢性粒细胞白血病（CML）18例,慢性淋巴细胞白血病（CLL）15例,混合型白血病（HAL）14例,少见类型10例;免疫分型初诊单纯型AML163例,变异型AML83例,单纯型ALL108例,变异型ALL106例,双表型32例,
杨峥 +5 more
doaj
The molecular mechanism of antioxidant effect of astaxanthin and preparation of its nanosuspensions [PDF]
, 2012 虾青素(astaxanthin，3，3'-二羟基-4，4'-二酮-β，β'胡萝卜素)属于叶黄素类β-胡萝卜素。研究发现虾青素对人类健康很有益处，对许多疾病都有很好的治疗保护作用。它主要的药理作用包括：抗氧化、抗肿瘤、抗炎、对心血管保护作用及神经保护作用等。 前期研究表明，虾青素的抗溃疡作用与氧化应激密切相关，但未在分子水平进行深入研究。因此，本课题以胃癌细胞为研究对象，采用Westernblot法检测虾青素刺激后氧化还原信号通路关键蛋白的激活情况，通过DCFH-DA法检测细胞内ROS的改变 ...
梁信芳
core
Policy Studies Journal, EarlyView.ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2012 目的探讨不同病因对男性不育患者精子形态的影响。方法 426例男性不育患者根据病因分为7组:精索静脉曲张组（68例）、慢性前列腺炎组（127例）、精索静脉曲张合并慢性前列腺炎组（36例）、特发性弱精子症组（42例）、少精子症组（115例）、小睾丸症组（21例）及其它组（17例）,用瑞-姬氏染色法进行精子形态分析。以78例供精者精液检查结果作为对照。结果不育患者的形态正常精子百分率明显低于对照组 ...
王玉丰, 吴玲, 陈雪银
doaj
Emotion and the Advocacy Coalition Framework: An Affective Dynamics Perspective
Policy Studies Journal, EarlyView.ABSTRACT Despite extensive evidence that emotion and cognition are deeply intertwined, the Advocacy Coalition Framework (ACF) lacks an analytically independent emotional mechanism in its causal architecture—an omission that may be particularly consequential in policy subsystems structured around morally charged, identity‐laden policy disputes.
Moshe Maor
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 乳腺癌是一种具有高度异质性的恶性肿瘤,包括多种分子形态学和分子遗传学个体。它是女性最常见的恶性肿瘤之一,全世界每年约40余万女性死于该病[1]。传统的乳腺癌分类方法有两种,一是按形态学表现分类,二是按激素受体表达与否及HER-
朱秀梅, 林静, 张金库
doaj
Toxic effect of carbon dioxide and water soluble fractions of crude oil on marine madaka’s reproductive system [PDF]
, 2016 海洋酸化和原油污染对海洋鱼类的影响时有报道，但海洋酸化和原油污染及两者联合暴露对海洋鱼类生殖系统的影响却鲜见报道。本实验以黑点青鳉为实验动物模型，分别采用原油组（500μg/LWSF）、酸化组（1500ppmCO2）和混合暴露组（1500ppmCO2+500μg/LWSF）对黑点青鳉从受精卵开始暴露，探究海洋酸化和原油污染对海洋鱼类的生殖系统的毒性作用及可能机制，结果如下： 原油水溶性成分和二氧化碳暴露的雄鱼表现出精细胞的成熟延迟，并且精原细胞的分裂和分化都受到影响；雌鱼则表现出卵细胞的成熟加速 ...
卢梦超
core
ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis
Veterinary Dermatology, EarlyView.ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake +2 more
wiley +1 more source