Results 31 to 40 of about 2,074,354 (157)
Zhongguo shiyan zhenduanxue, 2022 目的 探讨呼吸道疾病患儿抗生素使用情况以及家长焦虑、抑郁的发生现状，并探讨患儿抗生素使用情况与父母焦虑、抑郁的相关性。方法 选取2019年1月-2020年12月就诊于长春市儿童医院儿科的呼吸道疾病患儿父母514例，采用自制“患儿及家长调查问卷”、焦虑自评量表（SAS）和抑郁自评量表（SDS）收集患儿及其父母的一般情况，对患儿父母的焦虑和抑郁进行评估，分析影响患儿父母的焦虑、抑郁情绪的因素，以及患儿抗生素使用情况与父母焦虑、抑郁的相关性。结果 入组的514例父母SDS和SAS量表调查结果显示 ...
胡亮 +5 more
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Integrative Conservation, Volume 5, Issue 3, Page 306-316, September 2026.ABSTRACT In today's rapidly urbanizing world, the survival of wildlife in cities faces significant challenges, and the attitudes of urban residents toward wildlife play a crucial role in their survival. Otters, as top predators in freshwater ecosystems who are highly sensitive to environmental changes, had once gone extinct in Shenzhen—a megacity ...
Changning Liu +5 more
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New Phytologist, Volume 251, Issue 3, Page 1267-1282, August 2026.Biosynthesis and accumulation of tanshinones in the periderm of Salvia miltiorrhiza during secondary root growth. Summary Perennial herbs develop long‐lived roots that undergo repeated cycles of secondary growth, during which the periderm functions as a protective barrier and a major site of specialized metabolite accumulation.
Licheng Liu +19 more
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野生动物学报, 2017 郑州市动物园饲养5只豹,2雄3雌。2014年3月27日,其中1只母豹进入生育期,且第一次怀孕,该怀孕母豹生下1只小豹。通过监控发现,母豹分娩后十分惊恐,叼着小豹四处躲藏,拒绝哺乳,于是将幼豹拿出,进行人工育幼。新出生的小豹发育正常,个体较小,体重约500 g。每天用刚挤出的新鲜山羊奶代替母乳进行人工育幼。经过60多天的人工哺育,小豹体重和体长增加明显,由初生时的450 g增加至1 900 g,体长(含尾长)由37 cm增长至62 cm。根据幼豹的生长发育特点及观察结果,总结出幼豹在不同发育时期对温度 ...
丁爱萍 李德中 袁 丽 刘智明
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Root hair plasticity in cereals under abiotic stress
New Phytologist, Volume 251, Issue 4, Page 1684-1693, August 2026.An integrative perspective on how to study the regulation of root hair plasticity to increase the resilience of cereals to abiotic stress. Summary Abiotic stress is a constant threat to crop growth and yield in the context of climate change. Root systems that can best adapt their architecture to environmental challenges contribute to enhanced ...
Yaping Zhou, Frank Hochholdinger
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Zhejiang Daxue xuebao. Lixue ban, 2019 采用解剖镜、扫描电镜技术，对长白山早春类短命植物牡丹草地下芽形态分化进行了观察，并采用游标卡尺测定各阶段芽体大小，研究地下芽的生长发育节律。发现牡丹草地上生活周期结束后，地下贮藏器官需要休眠2 个月左右，于7 月中下旬，地下芽开始出现形态分化和发育。其进程可分为萌芽期、花序原基分化期、花序形成期和花器官分化期4 个时期，历经2 个月左右，最终以发育成熟的花序进行越冬休眠。连续测定和相关分析表明，在整个夏眠期，牡丹草地下芽的茎高、芽长、芽径均随时间指数生长，茎高和芽长 ...
LIUXuelian(刘雪莲) +4 more
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Functional Ecology, Volume 40, Issue 7, Page 2221-2236, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li +11 more
wiley +1 more source
Journal of Animal Ecology, Volume 95, Issue 7, Page 1178-1193, July 2026.This population‐comparative study reveals that male and female parents respond differently to social and ecological conditions. This sex‐specific responsive strategy is related to the incongruent parental care systems across populations in Chinese penduline tits.
Jia Zheng +5 more
wiley +1 more source
, 2004 MC RR抑制大型沉水植物苦草 (Vallisnerianatans (Lour.)Hara .)的生长和发育。在 0 0 0 0 1— 10mg/L的浓度下 ,苦草种子的发芽、子叶生长、真叶的形成和生长、不定根的形成和生长以及根毛的生长都受到了一定的抑制作用。当MC RR浓度≥ 0 .1mg/L时 ,处理第 30d ,MC RR对苦草鲜重和第一片真叶的生长有极显著的抑制作用 ,当MC RR浓度为 10mg/L时 ...
尹黎燕,黄家权,李敦海,胡智泉,刘永定
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Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】研究生后营养过剩对SD雌性大鼠生后生长的影响，从而指导临床对儿童的营养干预。【方法】通过孕期限食法建立宫内发育迟缓（IUGR）大鼠模型，选择符合标准的雌性新生仔鼠作为实验组（即I组），I组随机分成对照组（即IC组）和小窝组（IS组）；选择宫内未干预的雌性新生仔鼠作为对照组（即宫内发育正常组，C组），随机分成正常喂养组（CC组）和小窝组（CS组）。21d断乳后，IC组及CC组分别随机分成4只一笼，后正常饲料喂养，IS组及CS组高脂饮食喂养。每周测量各大鼠体质量及鼻肛长，并在不同生长发育周期 ...
陈丹纯 +5 more
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