Results 61 to 70 of about 96,551 (305)

Participatory cropping and farming system design among multiple stakeholders to contribute to sustainable agricultural production. Experiences and lessons with the agrarian reform sector in the brazilian cerrados [PDF]

open access: yes, 2008
Involving users in the development of innovations has become not only legitimate, but necessary, especially when users face strong constraints. The Unai project in the Brazilian Cerrados is using such an approach for accompanying small holders of the ...
Hocdé, Henri   +7 more
core  

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

The Impact of the Protectionist Politics over the Increase of Foreign Commerce [PDF]

open access: yes
This article presents the evolution of foreign commerce between 1865 up to First World War. After 1863 until the first World War, the foreign trade of Romania increases its volume permanently (between 1863-1913 - 6,5 times, from a 72,1 million gold lei ...
Chiru Gheorghe
core   +1 more source

‘It Takes Two Hands to Clap’: How Gaddi Shepherds in the Indian Himalayas Negotiate Access to Grazing [PDF]

open access: yes, 2006
This article examines the effects of state intervention on the workings of informal institutions that coordinate the communal use and management of natural resources.
Agarwal Anil   +55 more
core   +1 more source

Electro‐Chemo‐Mechanical Coupling in Hf0.5Zr0.5O2 Ferroionic Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Schematic of a ferroionic HZO heterostructure where epitaxial interfaces enable dynamic oxygen‐vacancy exchange, coupling ionic and ferroelectric degrees of freedom. Vacancy‐mediated polarization modulation biases HZO polymorphism, suppresses leakage, and enhances piezoelectric response, yielding distinct butterfly‐loop evolution and diode‐like ...
Achilles Bergne   +17 more
wiley   +1 more source

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

open access: yesAdvanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

El sistema agrario de las haciendas en la cuenca alta del río Lerma, estado de México, un análisis histórico territorial

open access: yesEspacio y Desarrollo, 2009
Historic geopolitics as method of spatial analysis allows the understanding of the internal relationships of time, space and society; explaining the socio-spatial transformations of the agrarian systems where there is the intervention of the physical ...
Fernando Carreto Bernal
doaj  

Cooperative Agricultural Farms in Bulgaria during Communism (1944-1989): an Institutional Reconstruction [PDF]

open access: yesRomanian Economic Journal, 2019
The main task of the study is to reconstruct the evolution of the agrarian cooperative sector in Bulgaria in the years of communism (1944-1989) from the standpoint of a long-term historical perspective and as a result of the accumulation of two leading ...
Tsvetelina Marinova, Nikolay Nenovsky
doaj  

Into their land and labours : a comparative and global analysis of trajectories of peasant transformation [PDF]

open access: yes, 2017
The fate of rural societies in the past and today cannot be understood in a singular manner. Peasantries across the world have followed different trajectories of change and have developed divergent repertoires of accommodation, adaptation and resistance.
Cottyn, Hanne, Vanhaute, Eric
core   +1 more source

Evolution and Impact of Agrarian and Revenue Systems: A Study of Hyderabad State

open access: yesInternational Journal For Multidisciplinary Research, 2023
This article based on the ‘evolution and impact of agrarian and revenue systems: A study of Hyderabad state’ during the second half of the 19th century important changes have taken place in the agricultural sector. The new land revenue reforms and the land tenure systems introduced by Salar Jung contributed to the growth of agriculture cultivation and
openaire   +1 more source

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