Results 191 to 200 of about 70,896 (263)

Continuous Cropping Differentially Regulates Nitrogen Metabolism and Nodulation in Soybean Cultivars with Contrasting Continuous Cropping Tolerance Under Varied Nitrogen Levels. [PDF]

Plants (Basel)
Liu W, Meng F, Rao D, Yao X.
europepmc   +1 more source

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

Advanced 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, Yuanwen Zhang, Xiangdong Meng, Guangyu Zhang, Huiwen Zhang, Yuquan Leng   +5 more
wiley   +1 more source

Hybrid fuzzy clustering with Golden Eagle Optimization Algorithm for fault tolerant load balancing in fog computing environment. [PDF]

Sci Rep
Kaur H, Malik S, Baggan V, Harnal S, Tyagi N.   +4 more
europepmc   +1 more source

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

American 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, Gashaw T. Abate, Seid Yimam, Rui Benfica, David J. Spielman, Frank Place   +5 more
wiley   +1 more source

From rhizome diffusion to programmable architecture: a systems framework for controllable spatial expansion in bamboo and other clonal plants. [PDF]

Front Plant Sci
Huang W, Hu C, Zheng S, Lu J, Chen B, Chen X, Hu J, Ouyang Z, Shu D.   +8 more
europepmc   +1 more source

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

American 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, Francisca N. Muteti, Annemie Maertens, Michael Ndegwa, Hope Michelson, Mercy Mbugua, Jason Donovan   +6 more
wiley   +1 more source

Wolf Predation Likely Eliminated a Beaver Colony in a Drought-Stressed Pond. [PDF]

Ecol Evol
Diserens TA, Brzeziński M, Churski M, Kuijper DPJ, Zalewski A.   +4 more
europepmc   +1 more source

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

American Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard, Elissa Harb, Stacy D. Holt Jr., Courtney M. Patterson, Nicholas J. Kooyers   +4 more
wiley   +1 more source

Effects of Different Electroacupuncture Frequencies in Young Adults with Chronic Neck Pain: A Randomized Controlled Trial. [PDF]

J Pain Res
Tu QY, He ZY, Huang JP, Liu JH.
europepmc   +1 more source

Transcript modification: A potential nutrient‐conserving strategy for polyploid plants

American Journal of Botany, EarlyView.
Abstract Premise Due to greater cell and nucleic acid nutrient requirements, polyploids have been hypothesized to be more constrained than related diploids in terms of cell synthesis and biomass accumulation when soil nutrients are limited. Methods Here, we grew autotetraploid and diploid Solidago gigantea plants in soils enriched or limited with ...
Erika I. Hersch‐Green, Carsten Külheim, Angela M. Walczyk   +2 more
wiley   +1 more source