Results 81 to 90 of about 660,923 (315)

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Intra-household decision-making, production diversity, and dietary quality: a panel data analysis of Ethiopian rural households

Food Security, 2020
Considering that rural poor are mostly subsistence farmers, it seems plausible that production diversity could lead to better nutrition for these farmers.
O. Sariyev, T. Loos, L. Khor
semanticscholar   +1 more source

The diversity of livestock systems and definition of animal welfare (2nd NAHWOA Workshop) [PDF]

, 2000
content: Part A: Livestock in organic farming: role and research methodologies Part B: The diversity of organic livestock systems – Austria and Spain Part C: Organic livestock production standards Part D: Organic livestock production and animal ...

core  

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Agricultural Food Production Diversity and Dietary Diversity among Female Small Holder Farmers in a Region of the Ecuadorian Andes Experiencing Nutrition Transition

Nutrients, 2020
Some rural areas of Ecuador, including the Imbabura Province of the Andes Highlands, are experiencing a double burden of malnutrition where micronutrient deficiencies persist at the same time obesity is increasing as many traditional home-grown foods are
C. Melby, Fadya Orozco, Jenni Averett, Fabián Muñoz, M. Romero, Amparito Barahona   +5 more
semanticscholar   +1 more source

The interplay between food market access and farm household dietary diversity in low and middle income countries: A systematic review of literature

, 2021
A significant share of undernourished people are smallholder farmers in low and middle-income countries. Recent studies advocate improving market access as an important pathway towards improving the dietary diversity of farm households over increasing ...
R. Nandi, S. Nedumaran, P. Ravula
semanticscholar   +1 more source

Selective Deposition of Charged Droplets for Programmable and Rewritable Printing of Patterned Microstructure Arrays

Advanced Science, EarlyView.
A residual‐charge‐induced electric field control (SDREC) strategy enables the fabrication of patterned microstructure arrays with a resolution of 20 µm via the selective deposition of charged droplets. The resulting arrays exhibit reversible writing/erasing, optical encryption, and selective silver electrode formation, offering a versatile route to ...
Yuechen Pei, Li Wang, Zhaofa Zhang, Yulin Zheng, Tianxue Yin, Jiaye Chen, Juntao Zhang, Yujie Qi, Bingheng Lu   +8 more
wiley   +1 more source

Combining satellite and farm-collected data to assess ecosystem functions in family-run cocoa production systems: a case study from the Abras de Mantequilla Ramsar site in Ecuador

Environmental and Sustainability Indicators
Family farming systems are widespread in tropical cocoa production, supporting rural livelihoods while providing ecosystem services such as carbon storage and soil protection.
Malena Torres-Ulloa, Vladimir Verner, Ramón Espinel, Diego Portalanza, Eduardo Álava, María Jiménez Feijoó, Omar Ruiz-Barzola, Patrick Van Damme   +7 more
doaj   +1 more source

Food security in rural Burkina Faso: the importance of consumption of own-farm sourced food versus purchased food

Agriculture & Food Security, 2020
Background The number of undernourished people and the risk of micro-nutrient deficiency remain high in sub-Saharan Africa (SSA). Decades of policy designed to reverse the trends of food insecurity have illustrated that the causal pathways of ...
Simon Fraval, Viviane Yameogo, Augustine Ayantunde, James Hammond, Imke J. M. de Boer, Simon J. Oosting, Mark T. van Wijk   +6 more
doaj   +1 more source

The Faraday Scalpel: Electrochemical Nerve Lesioning Mechanisms Studied in Invertebrate Models

Advanced Science, EarlyView.
Direct‐current produces nerve lesioning through discrete electrochemical reactions. Using hypoxia‐sensitive locust nerves and hypoxia‐tolerant leech nerves, we map three injury pathways: cathodic oxygen reduction, cathodic alkalization, and anodic chloride oxidation. These findings establish electrochemical lesioning—the “Faraday Scalpel”—as a precise,
Petra Ondráčková, Jan Švec, Marie Jakešová, Jiří Ehlich, Imrich Gablech, Eric Daniel Głowacki   +5 more
wiley   +1 more source