Results 31 to 40 of about 16,500 (146)
, 2022 耕地和草地分别约占地球上无冰土地的12%和26%，是地球上占比最大的两种典型土地利用类型之一，也是我国重要的两种农用地类型。维护耕地和草地土壤质量和健康对我国农牧业绿色可持续性发展、推进生态文明建设具有重要意义。长久以来，施肥是保障和提高耕地和草地生产力的主要农艺措施，但目前关于全面体现施肥对土壤质量和健康变化影响的系统性研究还很有限，对于长期施肥后的土壤质量和健康的整体评价、土壤健康变化的原因与后果等方面的研究仍存在不足。本研究分别基于中国科学院鹰潭红壤生态试验站内（位于亚热带江西省内的丘陵旱作耕地 ...
司绍诚
core
Integrative 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
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 1, Page 41-50, July 2025.ABSTRACT Objectives Monochorionic diamniotic (MCDA) twins with selective fetal growth restriction (sFGR) and either continuous (cAREDF) or intermittent (iAREDF) absent or reversed end‐diastolic flow in the umbilical artery face significant fetal and neonatal risks.
A. T. R. Noll +19 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2022 目的 非小细胞肺癌（NSCLC）是肺癌死亡的最主要原因，本研究通过获取NSCLC组织和正常组织的mRNA和microRNA表达数据集，分析影响NSCLC预后的基因及其可能的致癌机制。方法 从GEO数据库中获取5个mRNA数据集和1个miRNA数据集，利用limma软件包从mRNA数据集中筛选差异表达基因（DEGs），进一步利用ClueGO插件分析其通路富集信息，并利用GEPIA软件分析DEGs与肿瘤分期和预后的相关性。然后通过ENCORI、GENEMANIA和STRING数据库预测相互作用的miRNA ...
孙珊珊, 冯虎, 毕莎杉
doaj
Environmental racism and air pollution: Pre and post the COVID‐19 economic shutdown
Review of Policy Research, Volume 42, Issue 4, Page 949-981, July 2025.Abstract Decades of research demonstrates that minoritized groups are disproportionately affected by swathes of harmful pollutants, including air pollution, even controlling for low income. Would significantly reducing individual car traffic help reduce the EJ gap?
Heather E. Campbell +3 more
wiley +1 more source
Integrative Conservation, Volume 4, Issue 2, Page 246-253, June 2025.After the great Chinese poet Qu Yuan (屈原) was exiled to Xupu (溆浦) county in Hu' nan province, he described the forest there as follows: “mysterious is the deep forest, the place where Yuán yòu dwell (深林杳以冥冥兮,乃猿狖之所居).” What is the referent of the name Yuán yòu in this sentence?
Kefeng Niu
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2021 目的筛选缺血性脑卒中的关键基因及重要信号通路，预测可能对脑卒中有用的药物。方法从GEO数据库下载GSE98319基因芯片数据，该数据包含了假手术组、大脑中动脉梗塞组（MCAO）小鼠的基因芯片检测结果。用R语言的Limma包对数据进行差异表达分析，P<0.05且|log2FC|>0.6的基因为差异表达基因。借助STRING网站构建差异表达基因的蛋白质相互作用网络（PPIN）后由Cytoscape软件进行核心子网络筛选及可视化输出。筛选出核心基因后用实时荧光定量PCR（qRT- PCR ...
于瑜, 王钟兴
doaj
Quantitative Analysis of Wheat Flour Quality using Raman Spectroscopy and Near Infrared Spectroscopy(拉曼光谱和近红外光谱在小麦粉品质定量分析中的应用) [PDF]
Shipin kexue jishu xuebao, 2014 Based on the existing spectral data, the spectral information of wheat flour was selected using the Raman spectroscopy and near infrared spectroscopy combined with the least square method.
SONG Yu(宋 瑜) +4 more
doaj +1 more source
Veterinary Dermatology, Volume 36, Issue 3, Page 234-282, June 2025.Background – Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives – To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler +9 more
wiley +1 more source
智能科学与技术学报, 2021 在以往的地铁列车自动驾驶研究中，驾驶数据通常通过仿真生成单条运行曲线、对人工驾驶数据进行采样得到，不但实现方式比较复杂，而且效率较低、通用性不强。受AlphaZero系统启发，创新性地提出了人工生成虚拟地铁运行数据的思想。首先，根据一种五段式地铁列车速度曲线的运行方法，实现了虚拟数据的计算；然后，结合人类专家的经验设置牵引制动的区间分级、实际运行速度的分级、车站间距及变速距离分级等实际参数，缩小曲线数据范围，使其合理化；最后，通过Python编程得到大量数据，保存为数据集，绘制地铁列车运行时间频次分布图。
芦玉琦, 陈德旺, 赵钊林
doaj