Results 51 to 60 of about 2,558,890 (361)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Strategies for Solving World Food Crisis: Lessons, Constraints and Opportunities for Nigeria

open access: yesJournal of Agricultural Extension, 2010
The two-sided economic down-turn and food crisis being experienced in many parts of the world has become a concern of many world leaders and peoples. The Malthusian theory is gradually steering many pessimists in the face as food production is nothing to
T O Fadiji, D F Omokore
doaj   +2 more sources

Reconnaissance politique des savoirs professionnels

open access: yesRevue d'anthropologie des connaissances, 2018
This paper combines an anthropology of knowledge and a sociology of public policy, in order to analyze the impacts of public support provided to a group of French farmers to promote production and formalization of knowledge activities.
Jessica Thomas
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco   +7 more
wiley   +1 more source

How the Farmers Educational Background Affects Their Drought Management Policies: The Case of Miandoab, West Azarbaijan [PDF]

open access: yesمهندسی منابع آب, 2015
Drought management is a holistic approach applied by farmers can significantly reduce the outcomes of the drought. The farmers' knowledge about the drought management is essential in framers’ policy.
J. Yaghoubi, S. Poormand
doaj  

Contribution of the EIARD Working Group on Restructuring of the CGIAR. [PDF]

open access: yes, 2000
A contribution by a working group of the European Initiative for Agricultural Research and Development (EIARD) to the discussion on restructuring the CGIAR.
European Initiative for Agricultural Research for Development
core  

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

open access: yesAdvanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu   +11 more
wiley   +1 more source

Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design

open access: yesAdvanced Functional Materials, EarlyView.
Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan   +10 more
wiley   +1 more source

Coating Artificial Spider Silk Fiber with Magnetic FeCo: An Effective Strategy for Creating a Flexible Magneto‐Responsive Material

open access: yesAdvanced Functional Materials, EarlyView.
An original method is presented for producing artificial spider silk fibers with magnetic and magnetomechanical responsiveness, which consists in coating them with a nanometer‐thick layer of FeCo alloy by sputtering deposition. The challenge of combining organic materials and inorganic magnetic nanostructures is addressed, thus taking a step forward ...
Filippo Lanaro   +5 more
wiley   +1 more source

THE POTENTIAL OF A MULTI-MEDIA OPEN EDUCATIONAL RESOURCE MODULE IN ENHANCING EFFECTIVE TEACHING AND LEARNING IN POST GRADUATE AGRICULTURAL PROGRAM: EXPERIENCE FROM AGSHARE PROJECT MODEL

open access: yesOnline Learning, 2013
Graduate programs in agriculture in developing countries such as in Ethiopia are often designed in cognizance of the need for skilled manpower for agricultural development.
Jemal Yousuf Hassen
doaj   +1 more source

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