Results 21 to 30 of about 2,341,099 (172)
Pest‐preservation paradox among insects
Conservation Biology, EarlyView.The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways +3 more
wiley +1 more source
Protected areas on international borders show uneven conservation outcomes
Conservation Biology, EarlyView.Abstract Border protected areas (BPAs) are national protected areas that are immediately adjacent to a country's border or span two or more countries; they are characterized by distinctive opportunities and pressures. They play a critical role in protecting carbon‐rich ecosystems, conserving endangered biodiversity, reducing cross‐border environmental ...
Rachakonda Sreekar +10 more
wiley +1 more source
Sexuality, Gender &Policy, Volume 9, Issue 4, November 2026.ABSTRACT This study explores how 2SLGBTQ+ youth in Alberta, Canada—the country's most Conservative province—mobilize queer joy as a form of resistance amid rising anti‐queer and anti‐trans policies under a settler colonial, cisheteropatriarchal regime. Drawing from youth‐produced collages, we demonstrate that this visual arts‐based participatory method
JJ Wright, Gillian Robinson
wiley +1 more source
World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Agricultural development initiatives in sub‐Saharan Africa have emphasized improved crop varieties as a pathway to food security, resilience, and rural poverty reduction. However, empirical evidence often focuses narrowly on plot‐level outcomes and overlooks whole‐farm effects and the substantial heterogeneity in farmers' management practices,
Kodjo Kondo +4 more
wiley +1 more source
, 2014 本发明涉及一种络合铁的微生物催化再生方法，利用微生物的催化作用，加速络合铁的氧化再生，可有效缓解现有技术易杂菌污染、络合剂降解严重、脱硫液再生困难等问题，拓展了络合铁可适用的pH范围，强化络合铁的稳定性，可直接应用于硫化氢脱除 ...
王玉建
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Shuitu Baochi Xuebao, 2011 利用非线性评价模型对28a双季稻种植下连续冬种绿肥对土壤质量的影响进行量化,以农业部衡阳红壤环境重点野外科学观测基地长期冬种绿肥稻田为平台,分析了28a冬种不同绿肥的红壤性水稻土质量的变化情况,选择土壤容重(BD)、最大持水量(MWHC)、孔隙度(POR)、标准化平均重量直径(MNWD)、pH、阳离子交换量(CEC)、有效养分、土壤有机质(SOM)、微生物生物量碳(MBC)、土壤酶和作物生产力等项目作为评价指标,并根据不同指标所具有的功能归纳为:抗物理退化,养分供应和贮藏 ...
杨曾平 +6 more
doaj
World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Prevailing levels of hunger, malnutrition, and food insecurity—driven by conflict, global economic crises, and ecological destruction—are threatening fulfillment of the right to adequate food. The integration of human rights in food systems policies can address these challenges; however, progress in the adoption of human rights–based ...
Ellen Johnson +4 more
wiley +1 more source
, 2007 本发明涉及单重态氧的产生，具体地说是固体过氧化物或超氧化物为化学源产生单重态氧的方法，在室温条件、真空压力条件下，以无机固体的碱金属或碱土金属的过氧化物或超氧化物为化学源，与卤素气体发生化学反应产生单重态氧；其为一系列产生单重态氧的高效、安全、具有可放大性好，适应性强的化学反应体系；该反应体系产生的单重态可应用于氧碘化学激光器中或其它需要单重态氧的领域，这种反应体系避免了使用不稳定的易爆性和强腐蚀性的化学品，如高浓度过氧化氢溶液；这些方法高效、安全、紧凑、操作简单；不需要额外的电能、光能和热能，放大性好；
多丽萍 +4 more
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Zhejiang Daxue xuebao. Lixue ban, 2012 采用不同硅铝比的HZSM-5催化剂，在不同条件下（超临界、亚超临界、非超临界乙醇）催化提质生物油中的高沸点组分(HBF)，应用磷核磁共振(31P-NMR)定量检测了提质前后生物油中醇、酚和羧酸类羟基的质量比（羟基质量/生物油质量）变化，研究和评价了催化剂和超临界条件对生物油催化提质的效果.研究表明，超临界条件有利于生物油中脂肪族羟基的转化，但是不利于非缩合羟基的转化；使用不同酸强度的HZSM-5都能使生物油中的羧基完全转化，增加催化剂的酸强度可以促进脂肪族羟基的转化 ...
WEIWei(魏巍) +3 more
doaj +1 more source
World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT This critical ethnographic study examined the perspectives of service providers and organizational leaders working within charitable food services for people experiencing homelessness in two Canadian cities. Informed by Paulo Freire's writings and a human rights‐based approach, we explored how power is enacted through everyday practices and ...
Corinna Easton +4 more
wiley +1 more source