Results 51 to 60 of about 155,012 (310)

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Collective Farms of Black-Earth Villages in Russia during the New Economic Policy Period

open access: yesRUDN Journal of Russian History
The authors consider the problem of the development of collective farms in the villages of the provinces of the Central Black Earth Region. The peculiarities of the peasants’ perception of the new forms of agricultural production are shown with their ...
Vadim P. Nikolashin   +2 more
doaj   +1 more source

The review of publications from the fields of plant protection and agrarian history

open access: yesActa Agriculturae Slovenica, 2007
The present paper is a review of publications on plant protection, agrarian history and on related fields of the author Academician Prof. Emer., Dddr. Jože Maček for the period 1948-2007.
Jože MAČEK*
doaj   +1 more source

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

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

“Dejen que el diablo haga lo demás”: la promoción de productos complementarios en América Latina durante la década de 1940

open access: yesHistoria Crítica, 2011
During the 1940s, the United States undertook a series of ambitious programs to exploit raw materials —mineral, vegetable, and animal— in Latin America. These programs, which required the United States to use all its scientific, economic, and diplomatic ...
Nicolás Cuvi
doaj  

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Interaction of Central and Local Authorities with the Kazakh Population of the Steppe Region in the Field of Land Use in Late ХIХ - Early ХХ Century

open access: yesRUDN Journal of Russian History
The authors analyze the interaction between the central and regional authorities and the Kazakhs of the Steppe Region at the turn of the XX century on land use issues.
Yuliya A. Lysenko   +2 more
doaj   +1 more source

Analysing (In)Justice in the Interplay of Urbanisation and Transport: The Case of Agrarian Extractivism in the Region of Urabá in Colombia

open access: yesQuaestiones Geographicae, 2021
Infrastructural design, transport and mobility policies are strong instruments for interpreting historical urban and regional transformation processes. The paper addresses the intercausalities between both of them.
Toro López Maritza   +1 more
doaj   +1 more source

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