Results 11 to 20 of about 2,298 (142)
MMC celebrating 6 years of experience and expansion 庆祝MMC六年的经验和壮大
, 2022 Journal of Diabetes, Volume 14, Issue 5, Page 356-357, May 2022.
Itamar Raz
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Conservation Biology, Volume 34, Issue 6, Page 1536-1548, December 2020., 2020 Abstract Present biodiversity comprises the evolutionary heritage of Earth's epochs. Lineages from particular epochs are often found in particular habitats, but whether current habitat decline threatens the heritage from particular epochs is unknown. We hypothesized that within a given region, humans threaten specifically habitats that harbor lineages ...
Igor V. Bartish +6 more
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Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
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Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
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Assessing Closed Hydroponic Subsystems for Batavia Lettuce Growth Under Different Planting Densities
World Water Policy, Volume 11, Issue 2, Page 427-438, May 2025.ABSTRACT Hydroponic systems have the potential to be sustainable and alternative methods for food production that confer advantages of high production and better control of growth. However, only a few studies have focused on leafy vegetable growth in different subsystems and environmental variables.
Demet Çekin +6 more
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Seasonal variation and implications of the concentration of different phosphorus species and phosphate oxygen isotope composition in Jiulong River estuary [PDF]
, 2015 磷是生物生长所必须的营养元素，在天然水体环境中，磷的浓度比较低，可能会限制生物的生长。而若环境中的磷浓度过高，就会造成富营养化，甚至引发赤潮。磷在自然界中一般以磷酸盐的形式存在，主要分为溶解态磷和颗粒态磷，溶解态磷分为溶解无机磷和溶解有机磷，颗粒态磷又分为颗粒无机磷和颗粒有机磷。 磷是一种颗粒活性元素，它只有一种稳定同位素（31P），因此无法利用稳定同位素技术研究磷循环。研究发现磷酸盐氧同位素在生物或酶的作用下会与水发生氧交换，而非生物作用磷酸盐和水间不会发生氧交换。因此一些研究用磷酸盐氧同位素 ...
王娟
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Linking extinction risk to the economic and nutritional value of sharks in small‐scale fisheries
Conservation Biology, Volume 38, Issue 6, December 2024.Abstract To achieve sustainable shark fisheries, it is key to understand not only the biological drivers and environmental consequences of overfishing, but also the social and economic drivers of fisher behavior. The extinction risk of sharks is highest in coastal tropical waters, where small‐scale fisheries are most prevalent.
Andrew J. Temple +7 more
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Zhongguo shiyan zhenduanxue, 2021 目的通过对近几年东莞地区儿童全血6种微量元素检测结果的分析研究,了解儿童全血中各元素含量的现状,更好地为当地儿童的营养指导提供理论依据。方法采用原子吸收法对28986名在东莞市儿童医院进行健康体检的0-14岁儿童的全血进行6种微量元素检测并对结果进行分析。结果儿童6种元素中锌和铁的缺乏检出率较高,分别为17.957%和14.12%,铅超标率为0.640%;不同性别钙的缺乏率有显著差异 ...
程庆秋 +4 more
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Study of the expression of alkaline phosphatase in Amphidinium carterae Hulbert and Cofactor requirement [PDF]
, 2015 磷(P)是浮游植物生长发育必须的营养元素之一，当环境中的无机磷浓度不足时(磷限制)，浮游植物就会通过表达碱性磷酸酶(AP)，以分解环境中的有机磷来维持自己的生长所需。甲藻是海洋生态系统中重要的浮游植物类群，同时也是形成有害藻藻华的主要类群，开展对AP的研究可以帮助我们更清楚地了解在自然海区和形成水华过程中，甲藻利用磷的分子机制及对其自身生长的影响。碱性磷酸酶基因表达的分子机制研究在甲藻中的研究目前刚刚起步，目前该基因的报道仅限于甲藻中个别代表种，如强壮前沟藻 ...
郭辰涛
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野生动物学报, 2021 2017年冬季，为检验杭州动物园黑猩猩冬季饲料是否在行为和营养上满足需求，粗略计算黑猩猩冬季饲料营养成分，与日本、阿根廷、上海野生动物园、国内动物园的日粮营养成分对比，同时参照中国营养学会推荐的人类膳食营养平衡标准和AZA黑猩猩饲养指南，结合杭州动物园黑猩猩实际生长发育情况，评估黑猩猩冬季饲料。结果显示，杭州动物园冬季黑猩猩饲料在营养成分上，总能量（105—159 MJ），高于黑猩猩维持能量（711—8372 MJ），蛋白质（79—119 g）、脂肪（55—83 g）、碳水化合物（401—602
刘龙海江志楼毅黄淑芳应志豪陈玎玎龚利洋俞红燕
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