Results 21 to 30 of about 841,541 (166)

A new method for broad‐scale modeling and projection of plant assemblages under climatic, biotic, and environmental cofiltering

Conservation Biology, Volume 36, Issue 2, April 2022., 2022
Abstract There is increasing interestin broad‐scale analysis, modeling, and prediction of the distribution and composition of plant species assemblages under climatic, environmental, and biotic change, particularly for conservation purposes. We devised a method to reliably predict the impact of climate change on large assemblages of plant communities ...
Alessandro Ferrarini, Yang Bai, Junhu Dai, Juha M. Alatalo   +3 more
wiley   +1 more source

Participation Disenchants: How Online Political Participation Decreases Online Political Efficacy in China

Regulation &Governance, Volume 20, Issue 1, Page 35-63, January 2026.
ABSTRACT Existing literature largely agrees that authoritarian regimes establish channels for political participation to gather valuable information on citizens' anti‐regime sentiments and policy preferences and to supervise lower‐level bureaucrats and firms.
Anton Bogs
wiley   +1 more source

Interpregnancy interval and risk of recurrence following tubal ectopic pregnancy: retrospective cohort study from UK tertiary center

Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 1, Page 89-95, July 2025.
ABSTRACT Objective To assess the effect of interpregnancy interval on the odds of recurrence of tubal ectopic pregnancy (TEP) following expectant or surgical management. Methods This was a retrospective cohort study conducted at a tertiary early pregnancy unit (EPU) in London, UK.
W. M. Dooley, J. Farren, L. V. de Braud, S. A. Solangon, N. Thanatsis, B. H. Al Wattar, D. Jurkovic   +6 more
wiley   +1 more source

Using life history traits to assess climate change vulnerability in understudied species 利用生活史特征评估研究不足物种的气候变化脆弱性

Integrative Conservation, Volume 3, Issue 4, Page 368-381, December 2024.
Lack of species information complicates understanding climate change vulnerability, but life history traits can be proxies for missing information. In the north‐central United States, useful traits for discriminating vulnerability of amphibians include range size, clutch size, diel activity patterns, and habitat breadth.
Ross K. Hinderer, Blake R. Hossack, Lisa A. Eby   +2 more
wiley   +1 more source

Evaluating cryptographic vulnerabilities created by quantum computing in industrial control systems

Journal of Critical Infrastructure Policy, Volume 5, Issue 2, Page 88-110, Fall/Winter 2024.
Abstract Quantum computing is expected to eventually be able to break the public‐key cryptography algorithms currently used throughout information technology (IT) infrastructure, undermining foundational tools used to maintain information security across the country's critical infrastructure.
Michael J. D. Vermeer, Chad Heitzenrater, Edward Parker, Alvin Moon, Domenique Lumpkin, Jalal Awan   +5 more
wiley   +1 more source

An assessment of future rewilding potential in the United Kingdom

Conservation Biology, Volume 38, Issue 4, August 2024.
Abstract Restoring ecosystems is an imperative for addressing biodiversity loss and climate change, and achieving the targets of the Kunming–Montreal Global Biodiversity Framework. One form of restoration, rewilding, may have particular promise but may also be precluded by requirements for other forms of land use now or in the future.
C. Brown, R. Prestele, M. Rounsevell
wiley   +1 more source

Empirical research on polycentric governance: Critical gaps and a framework for studying long‐term change

Policy Studies Journal, Volume 52, Issue 2, Page 319-348, May 2024.
Abstract Polycentric governance (PG) describes governance systems characterized by multiple, interdependent centers of decision‐making, offering an alternative to centralized governance models. PG is often assumed to be effective at helping policy actors address complex collective action problems, but burgeoning empirical literature on PG shows that it
Elizabeth Baldwin, Andreas Thiel, Michael McGinnis, Elke Kellner   +3 more
wiley   +1 more source

2値シフトレジスタ系列を用いた準同期CDMA方式 [PDF]

, 1996
本論文では，スペクトル拡散通信方式に基づいた同期アクセスのずれの許容範囲をもつ準同期CDMA方式（QS-CDMA）について検討を行う．2値シフトレジスタ系列のGold系列とM系列を用い，相互・自己相関特性を考慮してアクセスタイミングずれの許容範囲の広い準同期拡散符号群（QS-sequences）を導く．これらのQS-sequencesを用いたQS-CDMA方式について検討し，その有効性を明らかにすることを目的とする．その結果として本論文で示したQS ...
片山, 正昭, 久野, 誠史, 山里, 敬也, 小川, 明   +3 more
core  

Achieving cross‐sectoral policy integration in multilevel structures—Loosely coupled coordination of “energy transition” in the German “Bundesrat”

Review of Policy Research, Volume 41, Issue 1, Page 160-183, January 2024.
Abstract The big policy challenges of our times are complex problems cutting across policy sectors and levels of government. To answer the question how cross‐sectoral policy coordination in multilevel structures can be achieved, we argue in line with policy integration and multilevel governance scholarship that “loosely coupled” institutions create the
Nathalie Behnke, Yvonne Hegele
wiley   +1 more source

多回HVDC输电线路地面离子流场的计算

Gaoya dianqi, 2012
HVDC输电线路离子流场的计算对于输电线路的设计和电磁分析具有重要意义,为此,笔者在Deutsch假设的基础上对地面离子流场进行解析求解。根据输电线路电力线分布特点,建立了适用于多回输电线路的离子流场算法并探讨了输电线路极性排列方式对于离子流场的影响。该算法可考虑正、负极性导线的起晕差异,实例计算表明:该方法的计算结果与实测值有较高的吻合度,并对各种线路结构具有良好的适应性;双回线路极性排列方式对于合成电场最大值影响不大,而离子流密度则受到较大影响;在不考虑输电线其他结构参数的情况下,双回输电线路以--/
龙兆芝, 鲁非, 雷民, 刘少波
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