Results 41 to 50 of about 11,790 (175)
Effect of soybean supplementation and parasite control on the iron status of rural adolescent girls [PDF]
, 2015 目的 缺铁性贫血是发展中国家常见的营养缺乏病之一，铁摄入量不足或铁丢失过多是导致缺铁性贫血的主要原因。青春期女孩因特殊的生理特点是缺铁性贫血的高危人群之一。本项目旨在探讨补充大豆和控制寄生虫感染对农村青春期女孩缺铁性贫血的改善作用。 方法 在青岛市农村地区选取两所小学，募集10~14岁女孩264名，血红蛋白浓度均大于70g/L。收集粪便，检测肠道寄生虫卵感染情况，给予阳性感染者药物驱虫治疗，确保实验开始前所有研究对象均未感染寄生虫。将研究对象分为三组：豆芽豆浆组（86人）：补充100mL豆芽豆浆 ...
江玲玲
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Profiling Metacognitive Knowledge and Growth Mindset in EFL Vocabulary Learning
International Journal of Applied Linguistics, EarlyView.ABSTRACT Guided by the self‐regulated learning (SRL) framework, the present study investigates the associations between metacognitive knowledge and growth mindset in EFL (English as a Foreign Language) vocabulary learning, addressing a critical gap in the literature. While metacognitive knowledge, comprising person, task, and strategy dimensions, plays
Weili (Allen) Xing, Mark Feng Teng
wiley +1 more source
野生动物学报, 2012 为了分析各种行为的时间预算分配以及小（辟鸟）（?）的亲代育雏行为,2010年10月11日～2011年1月11日共93 d,以曲靖师范学院南湖的所有小（辟鸟）（?）为研究对象进行观察。结果表明,冬季日各种行为的活动时间分配分为觅食行为、游动行为、休息行为、理羽行为、争斗行为、振羽行为、飞行行为和起舞行为,所占比例依次为36.9%、30.2%、17.7%、9.7%、2.9%、1.3%、1.0%、0.4%,都呈明显的节律性变化,其中觅食行为与游动行为、休息行为与理羽行为的发生呈显著的负相关 ...
杨乐, 丁伟, 李斯
doaj
Heavy Metal Distribution in the Feathers of Egretta garzetta [PDF]
, 2010 本研究采用电感耦合等离子质谱（ICP-MS）对江苏盐城和广东汕头的白鹭亚成鸟羽毛中的重金属含量进行检测，测定了钒（V）、铬（Cr）、锰（Mn）、镍（Ni）、铜（Cu）、锌（Zn）、砷（As）、硒（Se）和镉（Cd）等9种重金属元素。研究结果显示： 1.在所有羽毛样本中，除了硒（Se）均没有检出外，其它8种元素都能检测到。 2．在盐城、汕头两地白鹭羽毛中，V、Cr、Mn、Ni、Cu、Zn、As、Cd等8种重金属元素的含量均呈现Zn＞Cu＞Mn、Ni、Cr＞As、V、Cd的富集规律。 3 ...
韩寒
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Genomic responses to increased temperature and pollinator selection in Brassica rapa L.
New Phytologist, EarlyView.Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley +1 more source
Comparative Study on Lipid Dynamics in Maternal Breast Milk between Preterm and Term Infants of Han Ethnicity in Northwestern China [PDF]
Objective: To conduct comparative analysis of the dynamic trend of breast milk lipid composition across different lactation stages in mothers of preterm and term infants with the aim of providing a basis for optimizing feeding strategies for preterm ...
FENG Yan, WANG Xinyue, XUE Jianlan, LUO Xiaoqin, SU Li, LI Ting, DUAN Sufang, LIU Biao, SITU Wenyou
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Journal of Linguistic Anthropology, Volume 36, Issue 1, May 2026.Abstract Native speakerism in English language teaching (ELT) has become associated with Whiteness. However, how this association is sustained in everyday practices within China's unique socio‐cultural‐political context remains underexplored. This study examines the raciolinguistic construct of Mubai, a central recruitment criterion in China's ELT ...
Shuling Wang, Raviv Litman
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为探究生物结皮发育驱动下土壤水蚀特征及机理,选取苔藓发育为优势种的退耕样地,设计5个盖度等级(1%~20%,20%~40%,40%~60%,60%~80%,80%~100%),以裸地为对照,在不同水流剪切力(6.12~19.64 Pa)下进行冲刷试验。结果表明:结皮发育显著影响土壤养分含量,且高盖度结皮覆盖下养分表聚效应更加明显。生物结皮发育显著影响土壤分离能力,裸地土壤分离能力为生物结皮的3.58~348.95倍,裸地细沟可蚀性(0.293 5 s/m)为生物结皮(0.001 0~0.082 2 s ...
平原 +6 more
doaj
Policy &Internet, Volume 18, Issue 1, March 2026.ABSTRACT Over the past two decades, Voting Advice Applications (VAAs) have become widely used tools that provide personalized political information to help voters make informed choices and strengthen democratic processes. However, little research has examined their potential unintended effects.
Marius Fröhle +4 more
wiley +1 more source
野生动物学报, 1996 本文记述１例笼养川金丝猴幼仔“粒粒”，从出生至１６９日龄成功地放归笼养群体的全人工哺育技术，同时对幼仔个体行为与母乳哺育幼仔进行了对比观察，结果表明：（１）以优质人工乳哺育金丝猴幼仔，补加适量维生素和活性钙，于１１１日龄添加固体食物以后，随着日龄增长哺乳量递减，固体食物的种类、数量逐渐增加，２０６日龄断奶，幼仔健康成活；（２）主要护理技术为育幼期严格调控育幼箱内温、湿度，适度通风、日照，严格消毒和保育人员的精心爱抚：（３）２０日龄开始社群行为驯化，１４５日龄开始放归训练，并逐渐延长放归时间 ...
梁冰
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