Results 21 to 30 of about 96,551 (305)

Habitat conditions of Desmana moschata (Talpidae, Eulipotyphla, Mammalia) in the buffer zone of the Prisurskiy State Nature Reserve (Russia)

open access: yesNature Conservation Research: Заповедная наука, 2020
The study of bathymetry, macrozoobenthos abundance and the Russian desman population has been performed in the water bodies located in the Prisurskiy State Nature Reserve buffer zone (River Sura lower reaches floodplain).
Marina V. Rutovskaya   +4 more
doaj   +1 more source

Romania's Current Agrarian Structure: A Great (and Unsolved) Social and Economic Problem of the Country [PDF]

open access: yesRevista Română de Sociologie, 2012
The present paper is based on the idea according to which the present situation of the Romanian agriculture, its development level and the development of rural area in its most part, are largely determined by Romania's agrarian structure.
PĂUN ION OTIMAN
doaj  

PATTERNS OF DEVELOPMENT OF RELATIONS OF LAND OWNERSHIP IN THE AGRARIAN SECTOR OF THE ECONOMY [PDF]

open access: yesBaltic Journal of Economic Studies, 2017
Every economic system is based on a certain system of relations of property that answers the certain level of development of productive forces. When this system of relations of property stops to provide progress of economic development, there is a ...
Olga Shulga
doaj   +1 more source

The food security under another look: analysis on the evolution of the Brazilian population occupied in activities of self-consumption

open access: yesInvestigaciones Geográficas, 2011
The article analyzes the evolution of the Brazilian active population occupied in activities of self-consumption between 2001 and 2006 years. The date used come from the National Research on Sample of Domiciles.
Flávio Sacco dos Anjos   +2 more
doaj   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia

open access: yesEnvironmental Research Letters, 2013
Soil, tree stems, and ecosystem carbon dioxide fluxes were measured by chambers and eddy covariance methods in a paludified shallow-peat spruce forest in the southern taiga of European Russia (Tver region, 56° N 33° E) during the growing seasons of 2002 ...
J Kurbatova   +7 more
doaj   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

Consideraciones sobre la renta de la tierra y la comercialización de excedentes agrarios en la España del Antiguo Régimen [PDF]

open access: yes, 1993
This text tackles the various problems concerning with the variety of agrarian contracts, the income evolution and the specific mechanisms which ruled the commercialization of agrarian surplus from the 16th to the 19th century. The author points out that
Saavedra, Pegerto
core  

Research on the Geography of Agricultural Change: Redundant or Revitalized? [PDF]

open access: yes, 1999
Future research directions for agricultural geography were the subject of debate in Area in the late 1980s. The subsequent application of political economy ideas undoubtedly revived interest in agricultural research.
Atkins P   +88 more
core   +2 more sources

An Analysis Of The Temporal Evolution Of Agrarian Prices

open access: yesInternational Journal of Management & Information Systems (IJMIS), 2011
At the end of 2007 and principles of 2008 took place the greater nourishing crisis of the last decades. This crisis was caused by a spectacular increase in the prices of some agricultural raw materials and in the costs of the agrarian production. Since the end of 2008 the prices of the agricultural raw materials have decreased with similar intensity as
Maria-Encarnacion Andres-Martinez   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy