Results 101 to 110 of about 432,041 (254)

Autonomous Charging and Battery Swapping for Unmanned Aerial Vehicles: A Review

open access: yesAdvanced Intelligent Systems, EarlyView.
This review evaluates major autonomous charging and battery swapping methods for unmanned aerial vehicles (UAVs) against a single question: how close each is to sustained unattended operation. Rather than ranking them by charging performance, it identifies the limitation that most restricts each method, and briefly outlines the supporting technologies ...
Zelin Wu   +5 more
wiley   +1 more source

Flight tracks of homing pigeons measured with GPS [PDF]

open access: yes, 2006
Flight paths of homing pigeons were measured with a newly developed recorder based on GPS. The device consists of a GPS receiver board, a logging facility, an antenna, a power supply, a DCDC converter and a casing.
Rüter, Eckhard   +2 more
core  

Rapid displacement determination with a stand-alone multi-GNSS receiver: GPS, Beidou, GLONASS, and Galileo

open access: yes, 2019
Global Navigation Satellite System (GNSS) is an effective tool to retrieve displacement with high precision. Relative positioning and precise point positioning (PPP) are two basic techniques.
Jin, Shuanggen   +5 more
core   +1 more source

Improving access to new technologies: An experiment with Kenyan input sellers

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Agrodealers play a critical role in rural economies, selling essential inputs for agricultural production, stocking new products, and providing farmers with technical advice. However, uncertainty can discourage them from stocking newer, less familiar products, limiting the availability of innovative technologies and leading to market failures ...
Sarah W. Kariuki   +6 more
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

Floral traits and hermaphrodite abundance shape female advantage in a gynodioecious plant

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Gynodioecy is maintained through female advantage in seed fitness that depends on the sex ratio of a population. We hypothesized that females of Silene acaulis would exhibit floral traits associated with elevated outcross pollination and that sex ratio would impact pollen limitation and inbreeding depression such that female advantage ...
Emma K. Chandler, Megan L. DeMarche
wiley   +1 more source

ANÁLISE DA PERCEPÇÃO DOS ESTUDANTES DA ÁREA DA SAÚDE ACERCA DA ANEMIA FALCIFORME

open access: yesHematology, Transfusion and Cell Therapy
Objetivo: Analisar a percepção dos estudantes da área da saúde acerca da Anemia Falciforme. Material e métodos: : O estudo foi realizado através de uma análise transversal, analítica e descritiva, aprovação em comitê de ética em pesquisa com número de ...
ICLS Lordêlo   +3 more
doaj   +1 more source

Sitting in Many Camps—Innovative Approaches and Methods for First Nations‐Led Research Into Indigenous Peacebuilding

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT In 2021, a desktop review was conducted of published references to First Nations peoples' approaches to conflict and its management in Australia (Project Stage One), culminating in a report published in 2024. This article focuses on Project Stage Two, a complex, innovative research undertaking building on the findings of Stage One, and being ...
Helen Bishop   +3 more
wiley   +1 more source

General Practice Utilisation for Adults With Neurological Disability Who Are National Disability Insurance Scheme Participants in Australia

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT Most adults with neurological disability rely on general practitioners for managing and preventing health complications. This study analysed patterns of general practice service utilisation among National Disability Insurance Scheme (NDIS) participants with neurological disability and compared these with people who are not NDIS participants ...
Stacey Oliver   +8 more
wiley   +1 more source

Genetic Resilience and Resistance in Alzheimer's Disease Diagnosis and Pathology

open access: yesAnnals of Neurology, EarlyView.
Objective Some individuals avoid Alzheimer's disease (AD) pathology as they age, or retain cognition despite substantial pathology, suggesting mechanisms of resistance or resilience to neurodegeneration. Educational attainment (EA) is associated with reduced risk of cognitive decline, although the underlying mechanisms remain unclear.
Ganna Leonenko   +8 more
wiley   +1 more source

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