Results 31 to 40 of about 30,694 (239)
Role of testicular serine protease Tesp5 in fertilization [PDF]
"January 2007"--CoverThesis (Ph. D.)--University of Tsukuba, (A), no.
山下 美鈴
core
Abstract There are considerable data documenting the importance of early experiences for healthy human development. Though widely accepted amongst mental health clinicians, developmental researchers and early childhood policymakers, this information is not well known by much of the public.
Sarah Hinshaw+5 more
wiley +1 more source
季节性繁殖是哺乳动物在长期的进化过程中,为了应对外界环境的变化,选择合适的季节进行繁殖的行为。雄性哺乳动物在非繁殖季节表现为睾丸退化,精子发生的减数分裂过程受阻,进入繁殖季节性腺恢复,重新启动精原细胞的分裂和分化,这种季节性精原细胞分裂和分化与精子发生受到环境因子和多种体内激素的调节。就光周期信号分子——褪黑激素通过TSH-DIO2/DIO3-T3逆行通路和HPG轴—睾酮—视黄酸信号系统对雄性哺乳动物繁殖季节性调控的研究综述可知:褪黑激素通过调控HPG轴的功能促进精子的发生 ...
杨 笛, 陈婉依, 宫泽儒, 杨 明
doaj
マウス精子の凍結保存感受性に関する量的形質遺伝子座(QTL)解析 [PDF]
筑波大学 (University of Tsukuba ...
LIU JINSHA, 刘 金莎
core +1 more source
Uncovering Xi Jinping's Policy Agenda: Text As Data Approach
How many agendas has Xi Jinping put forth and promoted since taking office in 2012, and what are the types of agendas? How much of political attention has each agenda received, and how has the allocation of attention changed over time? We utilize a dataset of presidential statements, speeches, and reports from 2012 to 2022 and employed automated text ...
Jaehwan Lim, Asei Ito, Hongyong Zhang
wiley +1 more source
1994~1996年经连续3a对丹顶鹤换羽与产卵关系的观察研究表明,在沈阳地区产卵期为4月初至6月中旬,最晚可到7月初;其中产受精卵时间是从4月初至5月末(45~49d)。丹顶鹤换羽前受精率较高(70%~100%),换羽后受精率低或基本不受精。
宋艳珠, 谭桂芹
doaj
A spatially explicit assessment of factors shaping attitudes toward African elephant conservation
Abstract Conservation plans that explicitly account for the social landscape where people and wildlife co‐occur can yield more effective and equitable conservation practices and outcomes. Yet, social data remain underutilized, often because social data are treated as aspatial or are analyzed with approaches that do not quantify uncertainty or address ...
Sarah L. Carroll+9 more
wiley +1 more source
ABSTRACT Growing attention to “degenderization” reforms that aim to encourage men's caregiving roles may generate opposition from groups advocating to prioritize mothers' right to care. This article seeks to understand the politics of degenderization through the case of Spain, the only state with equal non‐transferable parental leave entitlements for ...
Manuel Alvariño
wiley +1 more source
カサカイ ノ ハッセイ カテイ ト ジュギョウ デノ カツヨウ [PDF]
Limpets (Mollusca: Gastropoda) are some of the most abundant animals in the intertidal zone of rocky shores. Here I report methods for collecting and culturing the limpets, especially Nipponacmea fuscoviridis, and describe developmental processes in this
出口 竜作
core +1 more source
ABSTRACT Objective Accurate differentiation between placenta accreta spectrum (PAS) and uterine‐scar dehiscence with underlying non‐adherent placenta is often challenging, even for PAS experts, both prenatally and intraoperatively. We investigated the use of standardized two‐dimensional grayscale ultrasound and Doppler imaging markers in ...
T. Adu‐Bredu+3 more
wiley +1 more source