Results 21 to 30 of about 6,253 (117)

Role of forest edges and other seminatural linear landscape features in structuring wild bee habitat connectivity in intensively managed landscapes

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Pollinator conservation schemes typically focus on conserving existing, restoring degraded, or creating new wild bee habitats. Their effectiveness depends on dispersal corridors enabling habitat colonization by bees. However, the role of seminatural linear landscape structures (LLS) in connecting pollinator communities across intensively ...
Markus A. K. Sydenham   +6 more
wiley   +1 more source

The Future of AI in the GCC Post‐NPM Landscape: A Comparative Analysis of Kuwait and the UAE

open access: yesPolitics &Policy, Volume 53, Issue 6, December 2025.
ABSTRACT Comparative evidence of how two Gulf Cooperation Council (GCC) states translate artificial intelligence (AI) ambitions into post–New Public Management (post‐NPM) outcomes are scarce because most studies focus on Western democracies. To fill this gap, we examine constitutional, collective choice, and operational rules that shape AI uptake in ...
Mohammad Rashed Albous   +2 more
wiley   +1 more source

长链非编码RNA预测头颈部鳞状细胞癌患者预后的研究

open access: yesZhongguo shiyan zhenduanxue, 2020
目的研究长链非编码RNA(long non-coding RNA,lncRNA)预测头颈部鳞状细胞癌(head and neck squamous cell carcinoma,HNSC)患者预后的作用。方法下载癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库中HNSC的lncRNA表达数据,使用edgeR包分析HNSC样本中差异表达的lncRNAs。使用COX回归分析筛选预测预后的关键lncRNAs,使用Kaplan ...
向琳, 徐晓晨, 谭君武, 杜波
doaj  

基于微阵列芯片数据分析中国人冠心病的关键基因和信号通路

open access: yesZhongguo shiyan zhenduanxue, 2023
目的 基于微阵列数据分析筛选中国人冠心病(CHD)的关键基因和信号通路,以期为临床探究潜在的发病机制与治疗靶点。方法 以CHD为检索关键词从基因表达图谱(GEO)数据库下载GSE71226微阵列芯片数据进行进一步分析,利用R Studio软件中“limma”包筛选冠心病患者与正常健康人群的差异基因并对其进行可视化处理,利用R Studio软件中“clusterProfiler”包和“org.Hs.eg.db”包对差异基因进行基因本体(GO)功能富集分析和京都基因与基因组百科全书(KEGG)通路富集分析 ...
王星   +5 more
doaj  

转突变型A53Tα-突触核蛋白基因的帕金森模型小鼠中脑的全基因组甲基化测序分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2020
【目的】研究帕金森氏病(PD)致病基因SNCA在A53T位置突变后对转基因小鼠中脑多巴胺,神经元DNA甲基化修饰的影响。【方法】分别取转突变的人源α-突触核蛋白(hα-syn)即hA53Tα-syn基因小鼠和对照组小鼠的中脑组织,采用重亚硫酸盐测序法(BS-seq)分别对12月龄的转基因小鼠和非转基因(nTg)小鼠进行全基因组甲基化分析,随后筛选出差异甲基化区域(DMR)用于GO富集分析。【结果】通过对比分析,我们总计发现481个DMR,其中高甲基化与低甲基化DMR分别有257和224个 ...
吴婷, 刘琳, 黎昭, 林贤
doaj  

Traditional knowledge promotes the protection of large old trees: A case from China's richest biocultural diversity area

open access: yesPeople and Nature, Volume 7, Issue 11, Page 2700-2713, November 2025.
Abstract Large old trees are important ecological entities in human settlements, providing cultural values and ecological services that are threatened by current and future changes in global climate, land use and disturbance regimes. Some studies suggest incorporating social and cultural significance into the conservation of large old trees.
Zhuo Cheng   +5 more
wiley   +1 more source

空肠弯曲杆菌诱导的结直肠癌的转录组学分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2022
目的探究空肠弯曲杆菌(C. jejuni)的致癌机制。方法将18只雌性的C57BL/6 ApcMin/+小鼠随机分为C. jejuni感染组9只和空白对照组9只。采用灌胃C. jejuni和葡聚糖硫酸盐共同诱导ApcMin/+小鼠产生结直肠癌。实验终点时,取各组小鼠结直肠组织解剖计数肿瘤个数,分别提取C.
李燕, 毛玉丹, 张幸鼎, 牟相宇
doaj  

Institutional Legacies and Governance Models: A Comparative Study of Broadband State Aid in Europe

open access: yesPolitics &Policy, Volume 53, Issue 5, October 2025.
ABSTRACT This article explores how historical legacies and institutional configurations impact the governance models used in implementing State aid policies for broadband in France, Portugal, Spain, and the United Kingdom. The analysis is based on historical institutionalism, focusing on path dependence, critical junctures, and gradual institutional ...
Luís Manica   +2 more
wiley   +1 more source

喀斯特坡地侵蚀泥沙养分流失与粒径分布的关系

open access: yesShuitu Baochi Xuebao, 2019
在丹江口库区喀斯特地区,研究分析自然降雨条件下5种不同植被覆盖类型(疏林地(C1)、乔木林地(C2)、坡耕地(C3)、荒草地(C4)、灌草地(C5))坡面侵蚀泥沙的氮、磷、钾养分流失及泥沙粒径分布特征,探讨泥沙养分流失与粒径分布的关系。结果表明:(1)侵蚀泥沙以粉粒(2~50 μm)、砂粒(50~2 000 μm)为主,0~20 μm颗粒含量随降雨强度的增加而减少。0~2 μm颗粒富集度集中在3.08~6.62,2~20 μm颗粒富集度集中在2.48~3.58,20~2 000 ...
周梦玲   +6 more
doaj  

Spatial Phylogenetic Analysis of Chinese Lizards: Insights Into Ecological Drivers and Conservation Gaps 中国蜥蜴系统发育的空间分析:生态驱动因素与保护空缺

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 430-441, September 2025.
Our study identifies southern China, including mountainous regions and islands, as key areas rich in phylogenetic diversity, and phylogenetic endemism of lizards that are currently under‐protected. Current protected areas however do not adequately cover regions that are critical for preserving the evolutionary history of lizards.
Tao Liang (梁涛)   +8 more
wiley   +1 more source

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