Results 11 to 20 of about 18,080 (163)
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
The effection of regulate AQP-4 on hydrocephalus in rats [PDF]
, 2015 目的：研究调控AQP-4蛋白对大鼠脑积水发生发展的治疗作用。 方法：雄性成年（周龄约8-9周）SD大鼠（250±20g），随机分成4组，脑积水组20只，生理盐水组（假手术组）20只，阴性干预组（予以腹腔注射黄体酮）20只，阳性干预组（予以腹腔注射睾酮）20只。脑积水模型建立方法为：腹腔注射水合氯醛麻醉SD大鼠后，固定于脑立体定位仪上，以微量注射泵调节微量进样器向大鼠脑室内注射30μl的3%高岭土混悬液，使之产生脑积水。生理盐水组的大鼠脑室内注射为生理盐水，其余的脑积水组、阴性干预组 ...
吴剑
core
Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
Flexible reduced field of view imaging and distortion correction via single-shot spatiotemporally encoded MRI [PDF]
, 2015 在众多的超快速成像方法中，单扫描平面回波成像(echoplanarimaging,EPI)，因其在速度和分辨率方面的突出表现，成为最受欢迎的成像方法之一。然而，EPI图像容易受到B0场不均匀和单次k空间采样中相位误差累积的影响而出现严重的几何形状畸变。最近以色列威兹曼研究所的Frydman小组提出了一种基于线性扫频激发的时空编码(spatiotemporallyencoded,SPEN)磁共振成像方法，该方法可以减弱EPI因非均匀场引起的伪影与图像畸变。本文首先基于SPEN成像方法的特点提出了两种小视野(
李敬
core
A link between increased temperature and avian body condition in a logged tropical forest
Conservation Biology, EarlyView.Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi +7 more
wiley +1 more source
Permeability evolution of the thick Cretaceous aquifer and the high-level bed separation water accumulation model during coal mining [PDF]
Bed separation water, as a source of sudden water inrush induced by mining, is characterized by large instantaneous discharge, periodic occurrence, and subtle warning signs, making it highly hazardous and extremely challenging to prevent and control ...
Changmin HAN +8 more
core +1 more source
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Conservation Biology, EarlyView.Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source
Study on Self-assembly Behavior and Multiple-stimuli-responsive Property of Azobenzene-based Amphiphilic Copolymers in Solution [PDF]
, 2016 环境响应聚合物分子链中含有特殊的响应基团，能够对外界环境的改变做出结构和性质的调整。许多科研团队致力于设计这类聚合物，并以此来丰富其在药物传送与释放方面的应用。偶氮苯由于有独特的光响应性和还原响应性，将其嵌入到聚合物中，通过光照或加入还原性物质便可调控其自组装聚集体的结构与实现药物分子的释放等，使其成为自组装领域的研究热点。本文先合成活性的偶氮苯单体，再将其与其他响应性单体通过RAFT法进行共聚，制备出含偶氮苯基团的多重刺激响应双亲共聚物，研究了共聚物的自组装行为、胶束的荧光及控制释放性能 ...
李奇
core
A method for characterizing the flow fluid in a multi-strand tundish [PDF]
, 2016 The residence time distribution(RTD) obtained from a pulse tracer experiment is always used for characterizing the flow fluid in tundishes. However,it is not suit to multi-strand or asymmetric tundishes because of negative volume or deviations calculated
CUI Heng, LI Dong-xia
core +1 more source
Conservation Biology, EarlyView.Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source