Results 51 to 60 of about 20,590 (257)

Optimization of leaf morphology in relation to leaf water status: A theory

Ecology and Evolution, 2020
The leaf economic traits such as leaf area, maximum carbon assimilation rate, and venation are all correlated and related to water availability. Furthermore, leaves are often broad and large in humid areas and narrower in arid/semiarid and hot and cold ...
Junyan Ding, Edward A. Johnson, Yvonne E. Martin   +2 more
doaj   +1 more source

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

Food insecurity and unemployment among immigrants in the United States

American 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, Joshua Berning, Alessandro Bonanno, Jude Bayham   +3 more
wiley   +1 more source

Leaf area of common bean genotypes during early pod filling as related to plant adaptation to limited phosphorus supply Área foliar de genótipos de feijoeiro no início de enchimento de vagens e sua relação com a adaptação vegetal ao suprimento limitado de fósforo

Revista Brasileira de Ciência do Solo, 2010
Low phosphorus supply markedly limits leaf growth and genotypes able to maintain adequate leaf area at low P could adapt better to limited-P conditions.
Roberto Santos Trindade, Adelson Paulo Araújo, Marcelo Grandi Teixeira   +2 more
doaj   +1 more source

The Estimation of Maize Grain Protein Content and Yield by Assimilating LAI and LNA, Retrieved from Canopy Remote Sensing Data, into the DSSAT Model

Remote Sensing, 2023
The assimilation of remote sensing data into mechanistic models of crop growth has become an available method for estimating yield. The objective of this study was to explore an effective assimilation approach for estimating maize grain protein content ...
Bingxue Zhu, Shengbo Chen, Zhengyuan Xu, Yinghui Ye, Cheng Han, Peng Lu, Kaishan Song   +6 more
doaj   +1 more source

Additives Enhancing Biodegradability in Plastics and Potential Implications for Textiles: A Mechanistic Review

Journal of Applied Polymer Science, EarlyView.
Mechanistic insights from additive‐assisted plastic degradation guide the design of environmentally adaptive textile fibers. Functional additives enhance oxidative, hydrolytic, enzymatic, and microbial degradation pathways. Translating these strategies requires control of fiber architecture, additive distribution, and environmental interactions ...
Julia Cunniffe, Joel Pawlak, Richard Venditti   +2 more
wiley   +1 more source

Growth Analysis of Glyphosate‐Resistant and Susceptible Amaranthus palmeri Biotypes

Plant-Environment Interactions
This study examined the growth parameters of both glyphosate‐susceptible and glyphosate‐resistant biotypes of Amaranthus palmeri, designated as GA2005 and GA2017, respectively.
Juliana deSouza Rodrigues, Nicholas T. Basinger, Ramon G. Leon, Allan L. Bacha, Renata Thaysa daSilva Santos, Kayla M. Eason, Donn Shilling, Timothy L. Grey   +7 more
doaj   +1 more source

Gas exchange and photosynthetic efficiency in common bean ecotypes grown in a semiarid environment

Pesquisa Agropecuária Tropical, 2012
Common bean has a significant economic and social importance, although its yield is considered low in Brazil, due to environmental conditions and low technology level on farming.
Rener Luciano de Souza Ferraz, Alberto Soares de Melo, Janivan Fernandes Suassuna, Marcos Eric Barbosa de Brito, Pedro Dantas Fernandes, Edivan da Silva Nunes Júnior   +5 more
doaj   +1 more source

Cooperative learning in anatomy: Comparing virtual avatars and human specimens

Anatomical Sciences Education, EarlyView.
Abstract Contemporary research demonstrated that undergraduate medical students rated an augmented reality learning tool entitled “human muscular arm avatar” as useful for their self‐directed individual learning. Beyond this subjective assessment, it was largely unknown whether avatar‐based study would also improve knowledge test scores at an objective
Christa Maurer, Annika H. Meuser, Simone Manhal, Niels Hammer, Sarah J. Löcker, Yusuf O. Cakmak, Katharina Erlbacher   +6 more
wiley   +1 more source

Spatially and Temporally Continuous Leaf Area Index Mapping for Crops through Assimilation of Multi-resolution Satellite Data [PDF]

Remote Sensing, 2019
As a key parameter that represents the structural characteristics and biophysical changes of crop canopy, the leaf area index (LAI) plays a significant role in monitoring crop growth and mapping yield. A considerable amount of farmland is dispersed with strong spatial heterogeneity.
Huaan Jin, Weixing Xu, Ainong Li, Xinyao Xie, Zhengjian Zhang, Haoming Xia   +5 more
openaire   +2 more sources