Results 111 to 120 of about 6,266,802 (357)

“The purpose of activism is to educate”: Young people's climate activism as and for education in the youth strike movement in England

open access: yesBritish Educational Research Journal, EarlyView.
Abstract By skipping school for their cause, young climate strikers repeatedly demonstrated their priorities in 2019 and 2020. They regularly chose to sacrifice a day of their formal education in favour of collective action. This study asks what we can learn from the reflections of former youth strikers.
Loz J. Hennessy
wiley   +1 more source

500kV GIL三支柱绝缘子炸裂故障分析与防范措施

open access: yesDianci bileiqi, 2019
为了解决一起500 kV GIL三支柱绝缘子炸裂故障,对故障GIL开展现场检查、返厂解体、应力仿真计算、缺陷模拟研究,采用同站运行的GIL单元为试品,开展GIL整体和关键部件工频耐压局放测试分析。研究结果表明:GIL三支柱绝缘子炸裂原因为三支柱绝缘子低电位金属嵌件与环氧树脂交界面存在小间隙,在运行过程中,小间隙逐渐劣化,导致交界面电场畸变,从局放异常发展为三支柱绝缘子炸裂。最后结合GIL三支柱绝缘子炸裂原因和三支柱绝缘子生产工艺流程提出了预防性的措施,为后续工程GIL生产运维提供借鉴。
黎卫国   +5 more
doaj  

San Gil, Santander ein paradies für die reisenden [PDF]

open access: yes, 2017
San Gil liegt in Santander, Kolumbien. Dieser Dorf ist ein ökologischer und warmer Platz . San Gil ist anerkannt, wegen der Outdoor-Aktivitäten und seiner wunderschönen Landschaften.
Alvarado Fisco, Stefanía   +1 more
core  

Extent, characteristics and policy applications of Key Biodiversity Areas

open access: yesBiological Reviews, EarlyView.
ABSTRACT A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persistence of biodiversity’. We review the initiative's origins, the KBA identification process, characteristics of the current network, threats, policy
Stuart H. M. Butchart   +57 more
wiley   +1 more source

Loss, persistence and reversal of phenotypic traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni   +4 more
wiley   +1 more source

气体绝缘金属封闭输电线路(GIL)接地问题探讨

open access: yesGaoya dianqi, 2016
气体绝缘金属封闭输电线路(GIL)凭借着自身优势,在近年来得到很大发展。为了保证GIL使用安全,需要对其外壳接地进行合理的设计和布置。笔者介绍了GIL两种接地方式及各自特点,利用MATLAB Simulink建立三相分体式GIL等值计算模型,结合某800 kV/4 000 A GIL产品参数进行仿真计算,研究了GIL外壳电位分布特征,探究了导流排布置数量、接地点间距对外壳电位及接地点入地电流的影响。计算结果表明,GIL外壳电位呈现出端部高中间低的"V"字形分布;在GIL端部设置导流排对降低外壳电位 ...
王亚楠   +6 more
doaj  

Emilio Portes Gil acompañado de Genaro Estrada y otros funcionarios

open access: yes, 1929
Al fondo se observa un retrato de Emilio Portes ...
Casasola (photographer)
core  

Waders in a sea of debris: a global overview

open access: yesBiological Reviews, EarlyView.
ABSTRACT The impact of plastic pollution on ecosystems and marine fauna is well documented, although research into its effects on waders (also known as shorebirds) remains limited. Given that waders are exposed to coastal marine litter, this exposure could be a significant factor in the decline of their populations. This study aims to assess the global
Yada Trapletti‐Lanti   +3 more
wiley   +1 more source

Fernando Torres-Gil interview, 2014

open access: yes, 2014
Torres-Gil, Fernando - Oral History Interview - CSWA ❧ Fernando M. Torres-Gil, PhD – Oral History Interview for the California Social Welfare Archives (CSWA). Interview by Rino Patti, PhD. Interview Date: 10/25/2014.
Torres-Gil, Fernando, interviewee
core  

Media Attention to Climate Change and Investor Flows in US Equity Mutual Funds

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper investigates how climate‐related news influences mutual fund investor behaviour in the United States. Although prior research has documented the financial relevance of climate risks, little is known about how media attention to climate change shapes capital allocation across mutual funds.
Laura Andreu   +3 more
wiley   +1 more source

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