Results 121 to 130 of about 57,668 (300)

Polarization vision and the physiological basis for trichromatic vision in Philaenus spumarius: Understanding host‐seeking behaviour in insect vectors for Xylella fastidiosa control

Annals of Applied Biology, EarlyView.
We investigated the role of vision in host‐seeking behaviour by Philaenus spumarius, the main European vector of Xylella fastidiosa, through an integrated anatomical, optical, physiological, and behavioural study. Our data highlight that the spittlebug uses visual cues, including polarized light, which may aid in detecting the polarized reflections ...
Domen Lazar, Elizabeth Clark, Andrej Meglič, Daniele Cornara, Gregor Belušič   +4 more
wiley   +1 more source

A Lightning Very-High-Frequency Mapping DOA Method Based on L Array and 2D-MUSIC

Atmosphere
Lightning Very-High-Frequency (VHF) radiation source mapping technology represents a pivotal advancement in the study of lightning discharge processes and their underlying physical mechanisms.
Chuansheng Wang, Nianwen Xiang, Zhaokun Li, Zengwei Lyu, Yu Yang, Huaifei Chen   +5 more
doaj   +1 more source

The Issue of Pre‐Islamic Arabic Christian Poetry Revisited

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT Is only very little Arabic Christian poetry extant from pre‐Islamic times? While distancing myself from Louis Cheikho's (1859–1927) view that almost all pre‐Islamic poets were Christians, I contend in this article that some of them indeed were.
Ilkka Lindstedt
wiley   +1 more source

Market regulation and productivity: The case of the Canadian Wheat Board

American Journal of Agricultural Economics, EarlyView.
Abstract Changes to regulatory environments influence firm‐level incentives, which can move the productivity frontier or reposition firms within an existing frontier. Estimating causal effects of policy changes requires a credible counterfactual for productivity in the absence of policy change.
Ryan Cardwell, Pascal L. Ghazalian
wiley   +1 more source

Lightning Imaging with LOFAR

EPJ Web of Conferences, 2017
We show that LOFAR can be used as a lightning mapping array with a resolution that is orders of magnitude better than existing arrays. In addition the polarization of the radiation can be used to track the direction of the stepping discharges.
Scholten Olaf, Buitink Stijn, Dina Roxana, Dorosti Hasankiadeh Qader, Frieswijk Wilfred, Hendriks Freddie, Muller Jeroen, Sardjan Danny, Trinh Gia, Bonardi Antonio, Corstanje Arthur, Ebert Ute, Falcke Heino, Hörandel Jörg, Mitra Pragati, Mulrey Katharine, Nelles Anna, Rachen Jörg, Rossetto Laura, Rutjes Casper, Schellart Pim, Thoudam Satyendra, ter Veen Sander, Winchen Tobias   +23 more
doaj   +1 more source

Decentralized propaganda in the era of digital media: The massive presence of the Chinese state on Douyin

American Journal of Political Science, EarlyView.
Abstract The rise of social media in the digital era poses unprecedented challenges to authoritarian regimes that aim to influence public attitudes and behaviors. To address these challenges, we argue that authoritarian regimes have adopted a decentralized approach to produce and disseminate propaganda on social media.
Yingdan Lu, Jennifer Pan, Xu Xu, Yiqing Xu   +3 more
wiley   +1 more source

Characteristics of Lightning Within Electrified Snowfall Events Using Lightning Mapping Arrays [PDF]

This study examined 34 lightning flashes within four separate thundersnow events derived from lightning mapping arrays (LMAs) in northern Alabama, central Oklahoma, and Washington, DC.
Bruning, Eric C., Calhoun, Kristin M., Curtis, Nathan, Harkema, Sebastian, Lang, Timothy J., Schultz, Christopher J.   +5 more
core   +1 more source

Automated analysis and statistics of lightning leader speed, local flash rates and electric charge structure in thunderstorms [PDF]

, 2018
We introduce new methods for the analysis of complex three-dimensional lightning data produced by Lightning Mapping Arrays and illustrate them by cases of a mid-latitude severe weather producing thunderstorm and a tropical thunderstorm in Colombia. The
López Trujillo, Jesús Alberto, Montanya, Joan, Van der Velde, Oscar Arnoud   +2 more
core  

Wildfires and Atopic Diseases: A Review

Allergy, EarlyView.
ABSTRACT Wildfire smoke is a major environmental health threat that has increased in frequency and severity in recent years. A hazardous component of wildfire smoke is particulate matter ≤ 2.5 μm (PM2.5). There is evidence to suggest that exposure to wildfire PM2.5 may increase the risk of developing or exacerbating atopic diseases, such as asthma ...
Alex Ha, John R. Balmes, Maria L. Wei
wiley   +1 more source

Improving prediction of short-duration heavy rainfall in Guangxi, China during the pre-summer rainy season based on Fengyun-4A lightning frequency and a machine learning algorithm

Frontiers in Earth Science
IntroductionThis study investigated the relationships between short-duration heavy rainfall (SDHR) events and lightning activity over Guangxi, China, during the pre-summer rainy season from 2019 to 2023.MethodsThe analysis was conducted using the ...
Weixiang Huang, Xiaoli Luo, Wei Zhang, Bo Feng, Xiaofei Xia, Chenying Yi, Weijun Hu   +6 more
doaj   +1 more source