Results 41 to 50 of about 12,320 (118)

Barriers to public engagement with biodiversity conservation

Conservation Biology, Volume 39, Issue 4, August 2025.
Abstract Addressing biodiversity loss requires public engagement and action, including changes to individual consumption habits, support for on‐the‐ground conservation actions, and advocacy for government action and policy change. Conservation organizations are increasingly focused on encouraging probiodiversity attitudes and behaviors through ...
Emily A. Gregg, Georgia E. Garrard, Sarah A. Bekessy, Alexander M. Kusmanoff, Jen K. Martin, Matthew J. Selinske, Lindall R. Kidd, Jennifer A. Robinson   +7 more
wiley   +1 more source

Patriotic rabbits or toxic men? Media ideology, entextualization, and enregisterment on Chinese interfaces

Journal of Linguistic Anthropology, Volume 35, Issue 2, August 2025.
Abstract This article argues that social actors' media ideologies about digital interfaces are key to the enregisterment of online activities. Focusing on an online register emergent from user activities around Year, Hare, Affair (YHA)—a state‐aligned Chinese animation—I explore how different metadiscourses evaluate this register by entextualizing ...
Jiarui Sun
wiley   +1 more source

关于行列式D≦25的六元恒正二次型

四川大学学报. 自然科学版, 1964
设fn=sum from i‘j=1 to n(asum from n=1 to n(aijxixj)(aij=aji)是一个系数aij均为整数,行列式为Dn=|aij|的n元二次型,如果对xi取任何一组不全为零的实数值时,都使fn取正值,我们称为fn为恒正二次型。两个二次型fn与gn,如果能经行列式等于±1的线性变换可以互相转化的,称为等价。根据等价性将二次型分成若干类,同一类的二次型都等价,不同类的二次型彼此不等价,用hn（Dn）表fn具有行列式为Dn的类数。
柯召, 陈度, 何治国, 余文洲
doaj  

Some Insects Are More Equal Than Others: A Comparison of Popular Large Language Model Chatbots' Treatment of Different Insect Groups 昆虫间的不平等——主流大语言模型 (LLM) 对不同昆虫评价的比较研究

Integrative Conservation, Volume 4, Issue 2, Page 254-267, June 2025.
Our research demonstrates that in mirroring prevailing human biases towards different insect groups, LLM chatbots oversimplify insect diversity by predominantly restricting “bees” to honeybees and “wasps” to yellowjackets, neglecting the majority of biodiversity that includes wild bees and parasitoid wasps, while also favouring Nearctic species in ...
Marina Moser, Lars Krogmann, Dominic Wanke   +2 more
wiley   +1 more source

关于a（x²+y²）+bz²表数相同的问题

四川大学学报. 自然科学版, 1983
熟知,两个等价的型（即可经行列式为±1之整系数齐次线性变换互变的型）必表数相同。然而其逆不真.1938年,证明,在所有实二元恒正二次型中,除常数因子外,有且仅有一对表数相同但互不等价的型x2+xy+y2与x2+3y2.1963年,给出了三组表数相同但行列式互异（从而互不等价）的三元恒正型.
柯召, 郑德勋
doaj  

Identification of Priority Areas for Conservation of Threatened Agamid Lizards of Sri Lanka Using Species Distribution Modeling 斯里兰卡濒危蜥蜴 (鬣蜥科) 保护优先区域的识别:基于物种分布模型的研究

Integrative Conservation, Volume 4, Issue 2, Page 188-204, June 2025.
We assessed the distribution of 14 threatened agamid lizard species using Species Distribution Modeling to identify hotspots for these species' conservation. Based on the results, high‐priority areas of threatened agamids were projected to occur specially in the wet zone.
Iresha Wijerathne, Suranjan Karunarathna, Thilina Sursinghe, Dulan R. Vidanapathirana, Kanishka Ukuwela, Sriyani Wickramasinghe, Chaya Sarathchandra, Jagath Gunatilake, Aiwu Jiang, Eben Goodale, Suranjan Fernando   +10 more
wiley   +1 more source

关于Pian-Sumihara杂交应力四边形元的一个等价形式

四川大学学报. 自然科学版, 2009
基于修正的Hellinger-Reissner变分原理,利用Wilson非协调位移和9参完全线性应力模式,作者得到了Pian-Sumihara五参杂交应力四边形元(P-S)的一个等价形式.这一等价性关系使P-S元的三维推广大大简化,然后作者给出了收敛性结果和数值算例.
童蓓蕾, 张世全, 冯印江
doaj  

Z-空间中的连续选择定理及其应用(英文)

四川大学学报. 自然科学版, 1999
在Z 空间的框架下证明了一个连续选择定理 ,推广了Tarafdar的连续选择定理 .作为应用 ,证明了Z 空间中的一个不动点定理及其等价形式 :极大极小定理 ,极大元的存在定理 ,极大极小定理的几何形式 ,并给出了它们的等价性的证明 ,推广了许多已知的结果 .
唐亚勇, 刘亚平
doaj  

在线翻译定价问题

Revista Tradumàtica, 2018
翻译平台、众包和神经机器翻译等信息技术破坏了翻译经济模式。九家全球语言服务公司的定价政策分析表明，向在线商业模式的转变有助于改进基于数量和内容的翻译模式，以提供一系列专注于用户体验的语言服务。
Claire Béatrice Larsonneur
doaj   +1 more source

Equivalent representations of generalized quasi-Sugeno fuzzy integral in supremum forms(广义拟Sugeno模糊积分的确界式等价表示)

Zhejiang Daxue xuebao. Lixue ban, 2014
通过减弱公理化条件给出新拟乘算子，并按照拟乘运算针对实函数正（负）部建立了广义拟Sugeno模糊积分.依据演化的确界概念获得了该积分的3种表达形式，并给出了其等价表示及其证明.最后，通过实例验证了该广义拟Sugeno模糊积分3种等价表示的正确性.
LIYanhong(李艳红)
doaj   +1 more source