Results 71 to 80 of about 17,058 (187)
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
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Effect of Laminaria japonica Powder on Physicochemical Properties, Rheological Properties and Protein Structure of Silver Carp Surimi Gel [PDF]
In order to improve the gel properties of surimi, the surimi gel was prepared by adding Laminaria japonica powder (LJP) with a mass fraction of 2%~10% in silver carp surimi. The effect of amount of LJP on the gel strength, texture, water holding capacity,
Fengchao ZHOU +11 more
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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
Shuitu Baochi Xuebao, 2019 以福建省西部宁化县紫色土区梯田+杨梅+百喜草（C1）、山边沟+鱼鳞坑+金银花（C2）、隔坡梯田+鱼鳞坑+油茶（C3）、鱼鳞坑+油茶（C4）、竹节沟+乔灌草（C5）5种水土保持措施和无水土保持措施（CK）的紫色土坡地为研究对象，对比分析不同水土保持措施下闽西紫色土速效养分含量及可蚀性特征差异，并揭示土壤速效养分与可蚀性特征间的相互关系。结果表明：5种水土保持措施下紫色土速效养分含量除硝态氮外均高于CK，其中，铵态氮（NH4+-N）、硝态氮（NO3--N）、速效磷（AP）、速效钾（AK）含量分别呈现C2 >
陈俊佳 +6 more
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Shuitu Baochi Xuebao, 2022 以亚热带常绿阔叶林建群种米槠(Castanopsis carlesii)凋落叶为研究对象,对照地表环境,研究了溪流和间歇性溪流凋落叶分解过程中水溶性有机碳、氮、磷含量变化及其累积损失特征。结果表明:(1)3种生境中凋落叶水溶性有机碳的含量在分解过程中均表现出逐渐降低的趋势,但在溪流中降低程度最大,损失率达92.18%;水溶性氮含量在溪流和间歇性溪流释放时间提前,其变化程度相对较小;相比于地表和间歇性溪流,溪流中的凋落叶水溶性磷含量在分解过程中持续降低,损失率达86.75%。(2)相对于地表 ...
郑旭灵 +4 more
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Theoretical Studies of Structures and Properties of Coals [PDF]
, 2013 煤炭是我国的主体能源，但煤炭资源总量的40%为低品质煤，针对这部分资源开展计算模拟研究，对煤化学的发展和煤资源提质与优化利用具有积极意义。煤是由多个结构相似的基本结构单元通过桥键连接而成的大分子网状结构的混合物，其分子结构和相关的物理化学性质还不是很清楚。量子化学计算作为原子分子水平上研究复杂体系的理论工具，在煤结构与性质的研究中逐渐获得应用。本文通过密度泛函计算，对几类代表性煤分子的结构、光谱性质、裂解性质和持水性质进行了计算研究，获得的主要结果如下: (1)通过理论计算 ...
郭娟娟
core
Effects of Storage Conditions on Gel Characteristics of Soft-Boiled Egg White and Underlying Mechanisms [PDF]
In this study, the effects and underlying mechanisms of storage conditions on the gel properties of soft-boiled egg white prepared from fresh eggs stored at 4 or 25 ℃ for 0–12 days were investigated.
XIANG Cong, ZHONG Mengzhen, HUO Jiaying, LI Shugang, MA Lulu
core +1 more source
Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Conservation Biology, EarlyView.Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2009 【目的】 观察周期性与持续性营养输注方式对内科呼吸衰竭机械通气病人血糖及血清炎症因子的影响。【方法】 采用交叉的自身对照方式测定60例内科呼吸衰竭机械通气患者周期性与持续性营养输注方式过程中血糖水平的变化及营养输注前后血清炎症因子水平变化,比较两种输注方式对机械通气患者血糖及血清炎症因子的影响。【结果】 24 h持续输注组总体血糖水平低于16 h周期性输注组,分别为[(8.37 ± 2.30)mmol/L,(8.89 ± 2.77)mmol/L,P = 0.000 ...
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Shuitu Baochi Xuebao, 2002 黄土高原生态脆弱，沟壑纵横，水土流失非常严重，究其原因主要是长期以来人们破坏植被的结果。西部大开发，水土保持特别是生态环境建设要先行，而水土保持又离不开植被建设。长期以来，人们已经认识到植被的重要性，但是关于植被在水土保持中的地位和作用，人们尚不太明确。为此，探讨了植被破坏对水土流失、生态环境的危害以及植被的各部分在保持水土方面的功效，认为植被措施具有极强的生态效益和社会效益，在水土保持中的地位是无可替代的，是水土保持的根本性措施。
卢金伟 李占斌
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