Results 31 to 40 of about 20,201 (116)
Quantitative appraisal and limiting factors analysis of sustainable development(可持续发展的定量评价与限制因子分析)
Zhejiang Daxue xuebao. Lixue ban, 2001 本文探讨了一套可持续发展定量评价中指标体系建立、指标筛选、指标权重确定及可持续发展程度判定模型建立的思路和方法.首先，提出了在主成分分析基础上进一步筛选可持续发展指标和利用主成分指标在第1主成分中的系数绝对值判定指标权重的方法，以减小当前指标筛选和权重确定的主观性影响；其次，提出了利用主成分指标在第1，第2主成分中的系数符号判定可持续发展限制因子的方法；最后，运用上述方法对萧山市可持续发展进行了定量评价.
LINDao-hui(林道辉) +4 more
doaj +1 more source
Evaluating the use of taxonomy in the IUCN Red List
Conservation Biology, Volume 40, Issue 5, October 2026.Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett +8 more
wiley +1 more source
A strengthened version of a Hardy-Hilbert-type inequality(一个加强的Hardy-Hilbert型不等式)
Zhejiang Daxue xuebao. Lixue ban, 2016 引入独立参数，应用权系数的方法及Hadamard不等式，建立了一个加强的具有最佳常数因子的Hardy-Hilbert型不等式及其等价形式.
GUZhaohui(顾朝晖) +1 more
doaj +1 more source
Insights for conservation from the Ecological Knowledge Games project
Conservation Biology, Volume 40, Issue 5, October 2026.Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Assessing and strengthening community‐based coastal governance
Conservation Biology, Volume 40, Issue 5, October 2026.Abstract Community‐based coastal governance is essential for biodiversity conservation and sustainable livelihoods, yet many communities continue to face significant challenges in establishing and sustaining effective governance systems. We sought to improve understanding of the current status of community‐based coastal governance across five countries
Mark Andrachuk +21 more
wiley +1 more source
四川大学学报. 自然科学版, 2003 定义n(n≥2)个正实数x1,x2,…,xn的r阶方差平均Dr(x,p)(x,p∈Rn++,r≥2).证明了:1.min{x}≤Dr(x,p)≤max{x};2.若正整数r>3,则有Dr(x,p)≥D3(x,p);3.若正整数r≥3,则有Dr(x,p)≥2/r1/(r-2)A(x,p),并且系数2/r1/(r-2)是最佳的.此处A(x,p)=∑nk=1pkxk∑nk=1pk为x1,x2,…,xn的带权系数p的加权算术平均.
文家金, 张日新, 张勇
doaj
大数据政务数据标识是建设全国一体化政务大数据体系的一项基础性工作。对数据标识技术的研究进展进行了总结，比较了不同数据标识技术编码规则的异同，并进一步总结了政务数据标识及应用进展。结合政务数据所具有的权责明确、安全性要求高、兼容性需求强等特点，提出了下一代政务数据标识体系Gcode。Gcode由外部码、内部码和安全码3个部分组成。其中，外部码兼容了统一社会信息用代码，内部码建立了“机构部门-系统-数据”的关联关系，安全码通过引入区块链技术实现防伪验真。Gcode具有权责明确、兼容性强、安全性高等特点 ...
王昀, 郭毅峰, 苏晓亮, 周武爱, 张皖哲, 许大虎, 周强, 冯建华
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Zhejiang Daxue xuebao. Lixue ban, 2009 通过估算权系数,建立一个核含2-参数且-2齐次的Hilbert型不等式及其等价式,并考虑了逆向不等式的情形.
YANGBi-cheng(杨必成)
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Bureaucratic Interests: Does Fiscal Decentralization Impede Efficient Governance?
Politics &Policy, Volume 54, Issue 5, October 2026.ABSTRACT This study examines the relationship between fiscal decentralization and administrative unit reduction in China, with particular attention to the political and institutional conditions under which subnational governments resist centrally coordinated streamlining.
Yuxing (Nemo) Chen
wiley +1 more source
Digital Futures Between Participatory Digital Democracy and Participatory Digital Fascism
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT This paper explores one of the defining political questions of the twenty‐first century: will digital technologies strengthen democracy or accelerate new forms of authoritarianism and fascism? Against the backdrop of platform capitalism, AI‐driven communication, surveillance infrastructures, disinformation and democratic crisis, the study asks
Christian Fuchs +2 more
wiley +1 more source