Results 31 to 40 of about 8,690 (146)
Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
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Nations and Nationalism, EarlyView.ABSTRACT This study presents one of the first comparative analyses of digital nationalism on social media. Using a computational mixed‐method approach—combining supervised, computer‐assisted content analysis with network modelling—it analyses 64,541 tweets from Twitter and 91,063 posts from Weibo surrounding a shared geopolitical flashpoint: President ...
Chris Chao Su, Jun Liu
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Zhongguo youzhi, 2022 通过气相色谱和傅里叶红外光谱仪测定86个油茶籽油样本的脂肪酸组成和红外光谱图，采用支持向量机（SVM）和BP人工神经网络（ANN）的非线性建模方法，构建油茶籽油中主要脂肪酸的定量回归模型。结果表明：ANN建立的油酸和棕榈酸定量回归模型精确度比SVM高，校正集的相关系数（R）分别为0.998 7和0.945 1，预测集的相关系数分别为0.955 7和0.926 2，相对标准偏差分别小于1%和5%；SVM和ANN建立的亚油酸定量分析模型精确度都非常高，相对标准偏差均小于1 ...
吴雪辉1,2，何俊华1，王泽富1 WU Xuehui1,2, HE Junhua1, WANG Zefu1
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2016 International Symposium on Galliformes (Beijing, China: October 21-23, 2016): Programme and Abstracts [PDF]
, 2016 Evolutionary relationships among galliforms using 1000’s of unlinked loci, Rebecca Kimball Ecology, behaviour and conservation problems in Siberian grouse Falcipennis falcipennis (Hartlaub 1855), Siegfried Klaus Taxonomy, genetics and evolution in a ...
China Ornithological Society +1 more
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People and Nature, Volume 8, Issue 2, Page 270-282, February 2026.Abstract Chinese consumer demand for ivory threatens vulnerable African elephant populations, despite long‐standing efforts to combat the illegal wildlife trade. Behavioural science approaches have been proposed to address these systemic behaviours. However, their robust use remains uncommon in demand management interventions.
Molly R. C. Brown +3 more
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Zhongguo shiyan zhenduanxue, 2023 目的 研究再生障碍性贫血(AA)病人外周血NK细胞及其受体表达的变化，探讨NK细胞在AA发病机制中的作用。方法 利用流式细胞术检测28例AA病人(其中SAA 9例，NSAA 19例)外周血NK细胞功能，包括NK细胞数量，活化性受体NKG2D,抑制性受体NKG2A,穿孔素，颗粒酶β的表达，T淋巴细胞亚群及与造血指标的相关性分析，另有18例健康志愿者为对照组。结果 AA病人外周血NK细胞数，NKG2D,颗粒酶表达减少，与对照组比较差异有统计学意义 ...
孔令环 +6 more
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Veterinary Dermatology, Volume 37, Issue 1, Page 89-102, February 2026.ABSTRACT Background Recurrent otitis externa (OE) episodes commonly affect dogs with canine atopic dermatitis (cAD) despite ongoing cAD treatment. Objective To determine if a therapeutic diet with active ingredients targeting the skin barrier and allergy pathways reduces the incidence rate of OE.
Adrian Watson +5 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu +8 more
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Shuitu Baochi Xuebao, 2001 应用磁测方法并结合土壤理化指标 ,对相同母质发育但利用方式和熟化程度不同的浙西红壤磁性特征进行研究。结果表明 ,6种利用方式的红壤中 ,耕植年限长、熟化程度高的红壤由于土壤结构、p H值和有机质含量的改善 ,磁性特征有明显变化 ,磁性矿物由亚铁磁性矿物向不完整反铁磁性矿物方向发展 ,且超顺磁性矿物和单畴磁性矿物含量减少。此外 ,耕植年限相同的红壤磁性相近 ,裸地红壤的磁性低值反映了裸地表土强烈侵蚀状况。
韩晓非 柳云龙 等
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Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Structural connectivity affects wildlife movement between habitat patches, contributing to the persistence of wildlife populations and their resilience to human‐induced and environmental changes. However, its importance to wildlife population persistence remains unclear, particularly in fragmented landscapes, where there are additional co ...
Cindy M. Hurtado +12 more
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