Results 61 to 70 of about 189,173 (351)

Adaptive Macroscopic Ensemble Allocation for Robot Teams Monitoring Spatiotemporal Processes

Advanced Intelligent Systems, EarlyView.
We propose an online, environment feedback‐driven macroscopic ensemble approach to adapt robot team task allocation in spatiotemporal environments by controlling robot populations rather than assigning individual robots, all while maintaining robust team performance even for small teams. Our simulation and experimental results show better or comparable
Victoria Edwards, Thales C. Silva, M. Ani Hsieh   +2 more
wiley   +1 more source

Learning and adaptation in waterfowl conservation: By chance or by design?

Wildlife Society Bulletin, 2016
The most recent revision of the North American Waterfowl Management Plan seeks to increase the adaptive capacity of the management enterprise to cope with accelerating changes in climate, land‐use patterns, agency priorities, and the waterfowl and ...
Fred A. Johnson, David J. Case, Dale D. Humburg   +2 more
doaj   +1 more source

Effect of Goose Parvovirus and Duck Circovirus Coinfection in Ducks

Journal of Veterinary Research, 2020
Introduction Coinfection of goose parvovirus (GPV) and duck circovirus (DuCV) occurs commonly in field cases of short beak and dwarfism syndrome (SBDS). However, whether there is synergism between the two viruses in replication and pathogenicity remains ...
Jie Liu, Xiaoxia Yang, Xiaojing Hao, Yongsheng Feng, Yuli Zhang, Ziqiang Cheng   +5 more
semanticscholar   +1 more source

Spread of HPAIV H5N1 from south china agro-ecosystems through wild birds migration: a multidisciplinary approach [PDF]

, 2012
Agricultural intensification in South China has increased densities of domestic ducks raised on intensively irrigated paddy fields, an important factor of the persistence of H5N1 highly pathogenic avian influenza virus (AIV) persistence.
Cappelle, Julien, Newman, Scott, Takekawa, John Y., Xiao, Xiangming, Zhao, Delong   +4 more
core  

Prenatal Evaluation of RNU4‐2 Variants in Fetuses With Central Nervous System Anomalies

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Fetal central nervous system (CNS) anomalies are among the most common congenital malformations, yet the overall prenatal diagnostic yield of current genetic testing remains below 40%. Variants in RNU4‐2, a non‐coding gene encoding the U4 small nuclear RNA (snRNA), have recently been linked to a novel highly recurrent dominant ...
Yiyao Chen, Li Gao, Xu Han, Yunyun Cao, Lanlan Zhang, Yi Wu, Xinrong Zhao, Wenjing Hu, Ruiyu Ma, Renyi Hua, Niu Li, Yanlin Wang, Jian Wang, Shuyuan Li   +13 more
wiley   +1 more source

Wild birds in south china agro-ecosystems and long-distance spread of H5N1 [PDF]

, 2011
Agricultural intensification in South China has increased densities of domestic ducks raised on intensively irrigated paddy fields, an important factor in the persistence of H5N1 highly pathogenic avian influenza virus (HPAIV).
Cappelle, Julien, Newman, Scott, Takekawa, John Y., Xiao, Xiangming, Zhao, Delong   +4 more
core  

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

The Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano, Aline M. Ghilardi, Jonatan Kaluza, Agustín G. Martinelli   +3 more
wiley   +1 more source

Assessing breeding duck population trends relative to anthropogenic disturbances across the boreal plains of Canada, 1960-2007

Avian Conservation and Ecology, 2020
Impacts of anthropogenic disturbance on duck populations in the boreal forest is largely unknown but hypothesized to negatively influence abundance through top-down and bottom-up processes.
Howard V. Singer, Stuart M. Slattery, Llwellyn Armstrong, Susan Witherly   +3 more
doaj  

Effect of synbiotic plus selenium or betaine on performance, intestinal health, nutrient digestibility, and carcass quality of Tegal ducks

Journal of the Indonesian Tropical Animal Agriculture, 2023
This study aimed to examine the effect of synbiotics and synbiotics plus Selenium or betaine on the performance, intestinal ecology, nutrient digestibility, and carcass quality of Tegal ducks.
I. Mangisah, S. Sugiharto
doaj   +1 more source

Evaluation of agro-industrial by-products as protein sources for duck production in the Mekong Delta of Vietnam [PDF]

, 2005
This thesis is based on four studies to determine the nutritive value and ileal and total tract amino acid digestibility of agro-industrial by-products, and the effects of inclusion of these by-products in diets on the biological performance of growing ...
Nguyen, Thi Kim Dong
core