Results 101 to 110 of about 138,791 (334)

Evolving resistance patterns in Tetranychus urticae and Bemisia tabaci in Greece

open access: yesPest Management Science, EarlyView.
Greek populations of T. urticae and B. tabaci exhibit evolving multi‐resistance, confirmed by bioassays and molecular markers, highlighting the urgent need for evidence‐based resistance monitoring in IPM. Abstract BACKGROUND Pesticide resistance in agricultural pests remains a major barrier to effective and sustainable crop protection.
Anastasia Kampouraki   +8 more
wiley   +1 more source

LA GESTIÓN DE LA CALIDAD EN LA EDUCACIÓN DE POSTGRADO EN CUBA PARA UN DESARROLLO SOSTENIBLE

open access: yesRevista de Innovación Social y Desarrollo, 2023
Se analizó la gestión en la calidad en la educación de postgrado en Cuba y su relación con el cumplimiento delos Objetivos de Desarrollo Sostenible.
Yanet Susel Barzaga Galano   +4 more
doaj  

Synthetic polymer nanocarrier enhances dsRNA stability but not RNAi efficacy in Brassicogethes aeneus

open access: yesPest Management Science, EarlyView.
Experimental setup for dsRNA feeding in Brassicogethes aeneus to evaluate the effect of a synthetic polymer nanocarrier on RNAi efficiency. The experiment assessed whether the nanocarrier enhances RNAi after oral dsRNA delivery. (a) Stability of dsRNA–nanocarrier complexes was tested in simulated gut conditions. (b) Gene expression of αCOP and dre4 was
Triin Kallavus   +13 more
wiley   +1 more source

能单独检测芯体电流的双重密封瓷外套交流无间隙金属氧化物避雷器

open access: yesDianci bileiqi, 2004
对瓷外套无间隙金属氧化物避雷器(以下简称MOA)密封不良的原因进行了分析。实践证明,采用双重密封结构,取消传统MOA中的隔弧筒和引拔棒,提高了MOA的密封可靠性。同时将MOA芯体与瓷套法兰绝缘,可使MOA在线监测仪在任何气候下都能监测单节及多节元件组成的MOA的芯体电流。
闫中华
doaj  

The Migrant-Local Difference in the Relationship Between Social Support, Sleep Disturbance, and Loneliness Among Older Adults in China: Cross-Sectional Study

open access: yesJMIR Public Health and Surveillance
BackgroundDriven by the accelerated aging of the population of China, the number of older adults has increased rapidly in the country. Meanwhile, following children, migrant older adults (MOA) have emerged as a vulnerable group in
Mingli Pang   +7 more
doaj   +1 more source

APRENDIZAJE BASADO EN INVESTIGACIÓN: PROPUESTA METODOLÓGICA EN PREVENCIÓN DE SALUD

open access: yesRevista de Innovación Social y Desarrollo, 2023
Se describió la implementación y los resultados de una metodología desarrollada con estudiantes de medicina que cursan el segundo año en la Facultad de Ciencias Médicas de Holguín, Filial Moa  por insuficientes experiencias y habilidades en la ...
Melba Cutiño Lidanza   +4 more
doaj  

Challenges facing the management of pesticide resistance in weeds, diseases and insect pests in European agriculture and the future of effective IPM implementation

open access: yesPest Management Science, EarlyView.
Opinion on pesticide resistance and management in the European Union (EU) and United Kingdom (UK) is presented cognisant of changes in regulation that impact on mode of action availability and cropping system choice. Abstract In recent times, pesticide resistance has been managed reasonably effectively, either proactively or reactively, by monitoring ...
Julian Smith   +10 more
wiley   +1 more source

金属氧化物避雷器泄漏电流在线测试分析

open access: yesDianci bileiqi, 2008
用在线监测法和定期带电检测法对金属氧化物避雷器(MOA)的泄漏电流进行了测试,影响MOA泄漏电流测试结果的因素有:MOA两端电压中谐波含量的影响;MOA两端电压波动的影响;MOA外表面污秽的影响;温度对MOA泄漏电流的影响;湿度对测试结果的影响;运行中三相MOA的相互影响。判断MOA质量状况时,建议采用标准法、横向比较法、纵向比较法和综合分析法。
孙鹏举
doaj  

Metodología para el diseño de parámetros en una máquina eólica vertical

open access: yesCiencia & Futuro, 2020
Se establecieron los parámetros de diseño de los componentes de un aerogenerador rápido de baja potencia, compuesto por rotor, palas, palas suplementarias y el árbol, combinando materiales de madera, aluminio al 13 % silicio y acero AISI 1045; para ...
Marlo Leyva-Tarafa   +5 more
doaj  

Yearbook of Organic Farming in the Czech Republic 2009 [PDF]

open access: yes, 2010
The yearbook brings summary of situation on field of organic farming, production, sale, distribution, consumption, promotion, education and research in the Czech Republic. The total acreage of organically farmed land at 31. 12.
Hrabalova, Andrea   +6 more
core  

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