Results 41 to 50 of about 846,192 (167)
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Recognition and engagement of Indigenous Peoples and local communities (IP&LCs) and other traditional knowledge (TK) holders in formal biodiversity governance remain limited, despite their significant contribution to the conservation and sustainable use of biodiversity through their knowledge, innovations, practices, and land stewardship.
Kinga Öllerer +8 more
wiley +1 more source
Geographic risks to functional groups of mammals and birds from habitat loss in Mexico
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás +4 more
wiley +1 more source
A new Hilbert-type inequality and its extensions(一个新的Hilbert型不等式及其推广)
Zhejiang Daxue xuebao. Lixue ban, 2007 利用权系数及实分析的方法，建立一个新的、不含参量的Hilbert型不等式，并证明其常数因子为最佳值.还考虑了其等价式及含参量的最佳推广情形.
YANGBi-cheng(杨必成)
doaj +1 more source
Review of Policy Research, Volume 43, Issue 3, May 2026.ABSTRACT In the face of increasingly complex environmental challenges, subnational governments play a critical role in implementing climate policies. This study investigates how intergovernmental interactions—specifically formal authority interactions and informal competitive interactions—shape the adoption of climate policies by Chinese provincial ...
Shiming Zheng, Alex Jingwei He, Yujie He
wiley +1 more source
, 1981 本文对于裂纹体应力和位移的Williams展开式的各项系数定义了权函数,这是Bucckner对于应力强度因子定义的权函数的一个推广,本文证明了这样定义的权函数的一系列性质 ...
王克仁
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四川大学学报. 自然科学版, 1995 加权移位的乘积丁宣浩石刚（数学系）（广西右江师专）设Ｈ为复可分无穷维Ｈｉｌｂｅｒｔ空间，Ｂ（Ｈ）为Ｈ上有界线性算子全体。对Ｈ上的向前与向后的单侧加权移位，向左与向右的双侧加权移位，不论重数，都统称为加权移位。美国数学家Ｈａｌｍｏｓ在文［１］中问：“哪...
丁宣浩, 石刚
doaj
Asian Politics &Policy, Volume 18, Issue 2, April 2026.ABSTRACT To complement the emergent inquiry into the threats and opportunities that new technologies pose to political institutions and behavior, this study draws on the emergent scholarly literature on Digital Authoritarianism to shed light on the factors leading to Hong Kong's newly acquired penchant for adopting the digital and information ...
Kenneth Ka‐Lok Chan
wiley +1 more source
Asian Politics &Policy, Volume 18, Issue 2, April 2026.ABSTRACT This study reframes Hong Kong's Legislative Council geographical constituency elections as a case of limited competition produced by institutional design. Using candidate‐level data, we examine how organizational resources and competition structure shape electoral outcomes under a mixed system that combines proportional representation in GCs ...
Pei ZHI, Fen LIN
wiley +1 more source
四川大学学报. 自然科学版, 1958 1.设fn=sum from i,j=1 to n(aijxixj) (aij=aji)是一个系数aij为整数,行列式为Dn的恒正二次型。对于已给的n和Dn我们用Cn,Dn来表示他们的类数。行列式等于±|的整系数线性变换能够把fn变成它自己的叫做一个自守变换。二次型fn的自守变换的个数的倒数叫做fn所代表的这个类的权,而同一个目内所有不同各类的权的和叫做这个目的权。
柯召
doaj