Results 101 to 110 of about 3,308,677 (360)
Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe [PDF]
, 2010 Variability of soil fertility within, and across farms, poses a major challenge for increasing crop productivity in smallholder systems of sub-Saharan Africa.
Delve, R.J. +5 more
core +2 more sources
Advanced Science, EarlyView.Utilizing molecular engineering for network design, three pesticide‐loaded organogels (PLOs) carriers exhibiting varying degrees of flexibility were prepared. The mechanical properties of these carriers, tunable via their network molecular structures, enhance their structural adaptability and retention stability at biological interfaces, thereby ...
Yue Wang +6 more
wiley +1 more source
Ecology and EvolutionForest rodents are important mediators of plant seed dispersal and their seed caching tactics are influenced by a variety of environmental factors; however, the role of terrain slope remains uninvestigated.
Ning Han +6 more
doaj +1 more source
Security in the anthropocene: Environment, ecology, escape [PDF]
European Journal of International Relations, 2016 The anthropocene poses a set of conceptual challenges for the study of security in the discipline of International Relations. By complicating the distinction between human and nature, the concept of the anthropocene puts into question one of the key organizing logics of upon which much security discourse is built; what would a security look like whose ...
openaire +1 more source
Recent Developments in Fisheries Science and Their Prospects for Improving Fisheries Contributions to Food Security [PDF]
, 2011 Marine reserves, areas permanently closed to all fishing, are frequently proposed as a tool for managing fisheries. Fishery benefits claimed for reserves include increases in spawning stock size, animal body size, and reproductive output of exploited ...
Callum M. Roberts, Fiona R. Gell
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Advanced Science, EarlyView.A resonant frequency engineering strategy is proposed to modulate the sensibility of piezoresistive textile‐based tactile sensor. It achieves simultaneous detection of static pressure and dynamic vibrations across an unprecedented bandwidth of 5–600 Hz, surpassing human sensation, therefore enables rapid and precise braille recognition.
Xianhong Zheng +17 more
wiley +1 more source
In the Vacuum of Public Action Social Security in Orissa: A Long Way to Go [PDF]
This paper is part of a large study on the Social Protection in Rural India and China. In this paper, we attempt at a critical appraisal of the historical development and experience of social security initiatives in Orissa, India.
K P, Kannan, Pillai N., Vijayamohanan
core +1 more source
Citizen Science in Disaster and Conflict Resilience [PDF]
, 2010 *Background/Question/Methods* Within the disaster and conflict response communities, concern about lack of effectiveness of outside responses has led to a debate about the role of local people in developing the capacity to prepare for ...
Keith G Tidball, Marianne Krasny
core +2 more sources
Advanced Science, EarlyView.Solution structures of a series of cyclic lipodepsipeptides from Pseudomonas reveal that these specialized metabolites adopt left‐handed alpha helical conformations of only two types, being either ‘stapled’ or ‘catch‐pole’ helix. The particular modular distribution of the biosynthetic gene clusters is found to determine the extent of their conserved ...
Benjámin Kovács +9 more
wiley +1 more source
"China's Energy Security: National Security, Ecological Balance and Regional Co-operation" [PDF]
This paper analyzes both global and regional approaches to solving problems of energy security and ecological imbalance by addressing specifically the problems of China's energy security.
Haider A. Khan, Mariko Frame
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