Results 41 to 50 of about 541,246 (311)

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

EFFECT OF LAND DEGRADATION ON SMALLHOLDERS FARMERS’ FOOD SECURITY AND POVERTY STATUS NEXUS LIVELIHOOD DIVERSIFICATION IN NORTH CENTRAL, NIGERIA

AGRISE, 2020
The extent of degraded and impoverished lands suitable for agriculture production in Nigeria is highly uncertain and cannot be established without due consideration of current land use and land tenure. The objective of this study was to assess the effect
Yusuf Usman Oladimeji, Yusuf O, Sani A A, Iyanda A S   +3 more
doaj   +1 more source

Climate change and food security in Sri Lanka: towards food sovereignty

Humanities & Social Sciences Communications, 2021
This study explored food security and climate change issues and assessed how food sovereignty contributes to addressing the climate change impacts on entire food systems.
Mahinda Senevi Gunaratne, R. B. Radin Firdaus, Shamila Indika Rathnasooriya   +2 more
doaj   +1 more source

Injectable Dual‐Network Hydrogel System for Osteochondral Repair Combining Immunomodulation, Mechanical Adaptability, and Enhanced Tissue Integration

Advanced Functional Materials, EarlyView.
A UV‐triggered injectable dual‐network hydrogel is reported as the first application of bletilla striata polysaccharide (BSP) in osteochondral repair. By integrating methacrylamide‐modified BSP and nitrobenzaldehyde‐functionalized hyaluronic acid, the system achieves immunomodulation, mechanical reinforcement, and dynamic tissue adhesion, thereby ...
Jiaming Cui, Feifei Zhou, Yuan Luo, Tao Ouyang, Huiwu Zhang, Songmiao Cheng, Qiang Li, Xu Jiang, Yingying Yu, Yicheng Wang, Hong Ming   +10 more
wiley   +1 more source

Banditry and its implications on Food Security in Northwest, Nigeria: A Reflection on the Roles of the State

Journal of Central and Eastern European African Studies
The major threat to the realization of poverty eradication and food security through adequate domestic food production in Nigeria today is insecurity.
Kamal Olaniyi Lamidi
doaj   +1 more source

Rearing and marketing of livestock in the Hakaluki Haor: Impact on livelihood, food and nutrition security

Journal of Agriculture, Food and Environment, 2020
The study aims at assessing and analyzing the core food security indicators to formulate policy option to improve food and nutrition security of the haor people.
M. A. Hashem
doaj   +1 more source

Poverty, Food Intake, and Malnutrition: Implications for Food Security in Developing Countries [PDF]

American Journal of Agricultural Economics, 1990
The relation between household income food intake and nutritional status in less developed countries is examined and a framework that explicitly relates household behavior patterns with public policy options designed to improve the nutritional status of the rural and urban poor is presented.
Maurice Schiff, Alberto Valdés
openaire   +3 more sources

Dense Nanofibrillar Collagen–Silica Hybrids with High Strength and ECM‐Mimetic Tissue Integration

Advanced Functional Materials, EarlyView.
Dense nanofibrillar collagen–silica hybrids are engineered by synchronizing collagen fibrillogenesis with silica condensation, producing printable scaffolds that unexpectedly approach native extracellular matrix organization and strength. These cell‐free constructs guide endogenous cell‐infiltration, enable localized matrix remodeling, and integrate ...
Norein Norein, Shima Tavakoli, Philipp Wolf, Xie Ling, Veronica Rondahl, Klaus Leifer, Gry Hulsart‐Billström, Jöns Hilborn   +7 more
wiley   +1 more source

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

Advanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan, Matthew P. Confer, Rui Zhang, Siqing Wang, Jeffrey S. Moore, Rohit Bhargava, Ying Diao   +6 more
wiley   +1 more source

KETERKAITAN KETAHANAN PANGAN DENGAN KEMISKINAN BERDASARKAN IMPLEMENTASI KEBIJAKAN PENANGGULANGAN KEMISKINAN DI INDONESIA

Economics Development Analysis Journal, 2017
Jenis penelitian ini adalah kuantitatif dengan data time series  berdasarkan tahun periode 1983-2013. Data diperoleh dari Badan Pusat Statistik, Litbang, Bulog dan world bank.
Suprianto Damanik
doaj   +1 more source