Results 51 to 60 of about 34,334 (249)
Drivers of bat researchers’ intent to adopt field hygiene practices
Conservation Biology, EarlyView.Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 运用分形理论对四川省汶川县土地利用/土地覆被镶嵌体景观类型的分维值进行计算,并讨论了各种景观类型的分维性质。结果表明:土地利用/土地覆被镶嵌体具有统计意义上的自相似性,是一种随机分形结构;景观类型的分维值越大,其形态越复杂,反之越简单。SI(稳定性指数)>0,表示景观在其形态复杂状态下的一种稳定性,SI越大,该景观形态越稳定;反之亦然。SI<0,表示景观在其形态简单状态下的一种稳定性,SI越小,该景观形态越稳定;反之亦然。景观类型的分维值随时间变化而增大,该景观的形态变得复杂,反之 ...
邵怀勇 仙巍 马泽忠 李爱农 周万村
doaj +2 more sources
Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】探讨第五版乳腺影像报告与数据系统（BI-RADS）对可疑钙化评估分类的临床应用价值。【方法】回顾性分析2012年5月至2017年5月乳腺X线检出可疑钙化并切除活检患者的乳腺X线片。依据第五版BI-RADSX线术语词典，分析可疑钙化的形态（不定形，粗糙不均质，细小多形性及线样或线样分枝）和分布（弥漫、区域、成簇、线样及叶段）。以病理为金标准，计算钙化形态、分布及组合分类的阳性预测值（PPV），将其与第五版BI-RADS各分类的PPV范围进行比较。【结果】共170例纳入研究，116例为良性 ...
王红莉 +8 more
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シミュレーション・プログラムの最適化プロセスについて : 宮城ダイナミックス・モデルを事例として [PDF]
, 1979 論
Higuchi Tohru, 樋口 透
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Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery
Conservation Biology, EarlyView.Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar +17 more
wiley +1 more source
, 2016 交通基础设施建设对地区经济和城市群协调发展具有深远的影响。港珠澳大桥是珠江口南部的重要通道,其建成后能提升珠江口西岸地区城市的区位优势,促进城市融合和经济发展,推动珠江口城市群的协调发展;能满足日益增长的区域交通需求,改变珠三角地区的交通空间格局。本文从城市群协调发展的判断标准出发 ...
陈章喜
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT Research on English‐Medium‐Instruction (EMI) highlights inadequate support for students transitioning from L1‐medium‐instruction to EMI. To date, little research has focused on how L2 students’ adaptation to an EMI environment influences their L2 learning motivation (LLM).
Kevin W. H. Tai
wiley +1 more source
Gaoya dianqi, 2001 本文将分形理论应用于局部放电模式识别 ,从统计图谱中提取分形特征。在局部放电模式试验基础上 ,采用计盒数的分形维数算法 ,从大量的局部放电样本中提取分形网格维数特征参数 ,提高了局部放电模式的准确性。
李剑 +4 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Online tutoring platforms (OTPs) are an increasingly popular way for learners to study languages and for teachers to earn money. On many OTPs, individual teachers are responsible for attracting potential students via self‐branding. While scholarship has examined OTP teachers’ self‐branding practices and identified some of the most popular self‐
Wenjing Zeng, Nate Ming Curran
wiley +1 more source
Shuitu Baochi Xuebao, 2016 采集广东省主要成土母质（玄武岩、砂页岩、第四纪红土和花岗岩）发育的林地、耕地和园地土壤剖面各发生层土壤，测定了土壤颗粒组成、有机质、CEC等理化性质，探讨了不同母质发育土壤颗粒分布的分形维数特征及其与土壤理化性质的关系。结果表明，玄武岩、第四纪红土、花岗岩和砂页岩发育土壤分形维数变幅分别为2.923 9～2.981 2，2.858 8～2.937 7，2.769 3～2.923 1和2.544 6～2.885 6；玄武岩和第四纪红土发育土壤颗粒分布分形维数与砂页岩发育土壤存在显著差异 ...
姜 坤 +5 more
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