Results 11 to 20 of about 350 (105)
Wildlife Letters, Volume 1, Issue 4, Page 163-170, December 2023., 2023 Per‐ and polyfluoroalkyl substances (PFASs), especially long‐chain perfluorinated carboxylates and perfluorinated sulfonic acids, were considered as global environmental contaminants due to their wide industrial and commercial applications and their threat to human and animal health.
Luyao Wang +7 more
wiley +1 more source
Are U‐shaped relationships between risk factors and outcomes artifactual? 风险因素与结果之间的U或J型关系以及分布偏倚的作用
Journal of Diabetes, Volume 14, Issue 12, Page 815-821, December 2022., 2022 Highlights U‐shaped relationships between three common cardiovascular risk factors (weight, systolic blood pressure, and insulin) and hazards of composite cardiovascular outcomes were analyzed in three study samples: entire sample, “high” subgroup, and “low” subgroup.
Reema Shah +2 more
wiley +1 more source
Journal of Advanced Nursing, Volume 77, Issue 3, Page 1567-1577, March 2021., 2021 Abstract Aims We describe an innovative research protocol to: (a) examine patient‐level longitudinal associations between nurse staffing practices and the risk of adverse events in acute care hospitals and; (b) determine possible thresholds for safe nurse staffing.
Christian M. Rochefort +6 more
wiley +1 more source
Journal of Mathematics, Volume 2021, Issue 1, 2021., 2021 Fractional order research has interdisciplinary characteristics and has been widely used in the field of natural sciences. Therefore, fractional order research has become an important area of concern for scholars. This paper used 2854 literatures collected from China National Knowledge Infrastructure (CNKI) database from 2001 to 2020 as the data source
Yunfei Yang +4 more
wiley +1 more source
Conservation Biology, Volume 34, Issue 1, Page 194-206, February 2020., 2020 Abstract Stand structure develops with stand age. Old‐growth forests with well‐developed stand structure support many species. However, development rates of stand structure likely vary with climate and topography. We modeled structural development of 4 key stand variables and a composite old‐growth index as functions of climatic and topographic ...
Yuichi Yamaura +6 more
wiley +1 more source
Conservation Biology, Volume 32, Issue 3, Page 660-671, June 2018., 2018 Abstract Habitat loss is a key driver of biodiversity loss. However, hardly any long‐term time series analyses of habitat loss are available above the local scale for finer‐level habitat categories. We analysed, from a long‐term perspective, the habitat specificity of habitat‐area loss, the change in trends in habitat loss since 1989 (dissolution of ...
Marianna Biró +2 more
wiley +1 more source
Detection of redundant function and linear function based on Haar transform(基于Haar变换的冗余函数和线性函数的检测)
Zhejiang Daxue xuebao. Lixue ban, 2009 给出了归一化Haar变换矩阵元的通式,讨论了归一化Haar变换谱系数与冗余函数和线性函数的关系.在此基础上提出了基于归一化Haar变换的检测冗余函数和线性函数的谱方法.该方法的主要优点是可以同时检测其他特殊逻辑函数以及易于计算机编程操作.
QIUXiao-hua(邱晓华) +1 more
doaj +1 more source
A-Browder′s theorem and property (R1) for bounded linear operators(有界线性算子的a-Browder定理及(R1)性质)
Zhejiang Daxue xuebao. Lixue ban, 2022 给出了有界线性算子满足a-Browder定理且具有(R1)性质的充要条件，研究了算子函数满足a-Browder定理且具有(R1)性质的判定方法，应用所得结论，给出了一类重要算子及其函数满足a-Browder定理且具有(R1)性质的判别定理。
CHEYuhong(车雨红), DAILei(戴磊)
doaj +1 more source
Graphic method of detecting special logic function with arbitrary term(检测含任意项特殊逻辑函数的图形方法)
Zhejiang Daxue xuebao. Lixue ban, 2014 线性函数、冗余特殊、自反函数、自双反函数等特殊逻辑函数在电路设计中具有独特的优点.从特殊逻辑函数的定义出发，提出了基于K图检测含任意项线性函数、冗余函数的方法及基于分解图检测含任意项自反函数、自双反函数的方法，并举例说明了具体检测过程.应用结果表明，该图形方法具有直观，便捷等特点.
LIXiaohua(厉晓华) +1 more
doaj +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2013 布尔差分和布尔e-导数是组合电路故障检测和布尔函数密码学性质研究的一种有效工具.从线性函数、冗余函数、自反函数、自双反函数、部分自反函数、部分自双反函数的定义出发，讨论了这些特殊布尔函数布尔差分和布尔e-导数的性质，并给出了相应的证明，为方便快捷地实现故障检测和密码学函数的构造奠定理论基础.
FANGWei-jie(方伟杰) +2 more
doaj +1 more source