Results 131 to 140 of about 782,631 (300)

Deep Reinforcement Learning Approaches for Sensor Data Collection by a Swarm of UAVs

open access: yesAdvanced Intelligent Systems, EarlyView.
This article presents four decentralized reinforcement learning algorithms for autonomous data harvesting and investigates how collaboration improves collection efficiency. It also presents strategies to minimize training times by improving model flexibility, enabling algorithms to operate with varying number of agents and sensors.
Thiago de Souza Lamenza   +2 more
wiley   +1 more source

Deformable Attention Multiscale Feature Fusion Network‐Dehaze: An Adaptive Image Dehazing Method Based on Deformable Attention Multiscale Fusion Network

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper presents the deformable attention multiscale feature fusion network‐dehaze adaptive image dehazing network, which integrates three core modules (revised residual shrinkage unit, multiscale attention, cross‐scale feature fusion). It incorporates deformable convolution and multiscale attention mechanisms to address the detail loss issue of ...
Ruipeng Wang   +4 more
wiley   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra   +3 more
wiley   +1 more source

Infectious mononucleosis, other infections and prostate-specific antigen concentration as a marker of prostate involvement during infection [PDF]

open access: yes, 2016
Aksoy   +46 more
core   +2 more sources

Food insecurity and unemployment among immigrants in the United States

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Immigrants can be more vulnerable to economic downturns and, during periods of economic hardship, more likely to experience food insecurity compared to natives. This study examines the differential effect of the unemployment rate on the probability of being food insecure among diverse groups of immigrant households relative to natives in the ...
Siwen Zhou   +3 more
wiley   +1 more source

Implementation of Youth Empowerment Services (YES) juvenile justice diversion program: A first‐person account

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract In Santa Barbara County, the Youth Empowerment Services (YES) Program brought together several government and community‐based organizations, as well as a university‐based evaluation team, to provide pre‐adjudication diversion to youth ages 12 to 17.
Angela Pollard   +7 more
wiley   +1 more source

Occurrence of Myopericarditis Following COVID-19 Vaccination Among Adults in the Eastern Region, Saudi Arabia: A Multicenter Study

open access: yesInternational Journal of General Medicine
Eidan M Al Zahrani,1 Salah H Elsafi,2 Rawan S Alkharraz,3 Noureldin H Sahal,4 Mohammed Almansori,5 Ameen I Alhababi,6 Zeyad S Alkharraz2 1Physical Therapy Department, Prince Sultan Military College of Health Sciences, Dhahran, Saudi Arabia; 2Clinical ...
Al Zahrani EM   +6 more
doaj  

Civilian Occupational Exposure to Vapors, Gas, Dust, or Fumes and Respiratory Health Among United States Military Veterans

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background We investigated associations of self‐reported and job exposure matrix (JEM) assigned civilian occupational exposure to vapors, gas, dust, or fumes (VGDF) with respiratory symptoms among previously deployed US Veterans. Methods An interviewer‐administered questionnaire ascertained self‐reported civilian occupational VGDF exposure.
Sahra Mohazzab‐Hosseinian   +14 more
wiley   +1 more source

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