Results 111 to 120 of about 32,077 (249)
Wildlife Letters, EarlyView.In this study we analyze the role of phylogeny, environment, and community structure on sociality. Using structural equation modeling (SEM) we aim to quantify the direct and indirect impacts of variables on behaviors including social grouping, reproduction, and space use among Carnivora species.
Jessica Ward +3 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2013 【目的】 分析畸形精子症患者行卵胞浆内单精子注射(ICSI)后的妊娠结局?【方法】 回顾性分析因男性因素行ICSI治疗的445个新鲜取卵周期,根据精子形态学分析结果将研究对象分为:精子形态正常组(A组,正常形态率≥4%,n = 296),非极度畸形精子症组(B组,正常形态率≥1%且 0.05)?在3组中,极度畸形精子症组有最高的优质胚胎率(67.6% ,405/599),种植率(32.1%,53/165)和临床妊娠率(46.7%,35/75)?【结论】 ICSI可用于畸形精子症的治疗 ...
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Wildlife Letters, EarlyView.This review summarizes the status of musk deer in China, highlighting severe population declines due to illegal hunting and habitat loss, and proposes integrated conservation strategies including habitat protection, captive breeding, and law enforcement to support the recovery and sustainable management of this ecologically and economically important ...
Feng Jiang +8 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2011 【目的】分析64名子宫畸形患者行IVF/ICSI治疗的临床资料，对子宫畸形患者的助孕结局做出分析总结，以期为临床提供借鉴。【方法】回顾性分析2002年1月1日到2009年12月31日因不孕行IVF/ICSI治疗的子宫畸形患者，按照子宫畸形的类型进行分组，比较各组病人的基本资料及ART治疗结局。妊娠的患者追踪至分娩，比较自然流产率、早产率、活婴分娩率、新生儿体重和分娩孕周以及有无合并畸形。【结果】因子宫畸形行ART治疗患者共64人，按照子宫畸形的类型分为4组，鞍形子宫13人，不完全纵隔子宫14人 ...
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
The Hour that Never Comes and the Time that Remains
Journal of Analytical Psychology, EarlyView.Abstract This essay proposes a symbolic and clinical investigation of psychic temporality through two archetypal experiences of time: the hour that never comes and the time that remains. Drawing on analytical psychology, trauma theory and aesthetic philosophy, text explores how certain forms of suffering resist chronological resolution and persist as ...
Daniel Françoli Yago
wiley +1 more source
不同经济发展水平区域物流与经济增长的协整关系研究 [PDF]
根据协整检验和因果关系检验等计量方法,利用中国各省1991～2007年物流发展水平和国内生产总值的年度数据,将31个省(市、自治区)按经济密集度不同分成三大类地区,并对其物流和经济增长的关系分析进行了实证分析。实证结果表明:三个区域的物流与经济增长均存在协整关系,发达的一类地区两个变量存在双向Granger因果关系,而后两类地区两个变量仅存在单向的Granger原因。国家自然科学重点资助项目“中国城市化进程的资源环境基础研究 ...
张雷, 杨志梁, 程晓凌
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Methods in Ecology and Evolution, EarlyView.Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye +4 more
wiley +1 more source
Gaoya dianqi, 2017 为研究长棒形瓷绝缘子电位与电场分布,以指导现有运维策略。文中采用有限元法,建立500 kV长棒形瓷绝缘子串三维模型,仿真并分析其电位和电场分布。结果表明:沿绝缘子串高度方向,长棒形瓷绝缘子串表面电位呈现三段式曲线,绝缘子串两端电位变化较快;其表面电场强度随高度变化呈U形曲线分布,场强最大值在高压端第1片伞裙与棒芯连接处。相比于普通悬式绝缘子串,长棒形瓷绝缘子串金具较少,其电位和电场分布更不均匀。
张佰庆 +5 more
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