Results 11 to 20 of about 2,090,212 (264)
CHANGES IN THE CONCENTRATION OF ANIMAL PRODUCTION IN POLAND [PDF]
Annals of the Polish Association of Agricultural and Agribusiness Economists, 2020 The main purpose of the paper was to present changes in the concentration level of individual animal production in Poland. All Polish voivodships were selected for research purposefully. The research period concerned the years 2005-2019. The source of material was the literature on the subject and data from the Central Statistical Office.
Tomasz Rokicki +2 more
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Ownership concentration and the change of media character and role [PDF]
Sociološki Pregled, 2013 When media ownership evolved from private companies headed by clearly visible entrepreneurs into 'faceless' corporate giants, the media had lost the role of 'the fourth pillar of democracy' and had transformed into purely profit-seeking organizations ...
Reljić Slobodan
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Ecological Indicators, 2021 Global climate change can harm the food production globally by varying intensity and frequency of rainfall, occurrence of extreme weather and increment in greenhouse gases.
R.K. Srivastava +2 more
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Changes Of Atmospheric Methane Concentration Parallel To Climatic Changes [PDF]
Annals of Glaciology, 1990 Measurements on ice-core samples showed that atmospheric methane concentration changed with the large climatic cycles during the last two glaciations (Stauffer and others, 1988; Raynaud and others, 1988). The methane concentration is lower in cold periods and higher in warm periods. In this paper we discuss the results of CH
Stauffer, Bernhard +2 more
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Ecological Indicators, 2021 Maize, rice, and wheat are the major staple food crops in China and are crucial components of national food security and economic development. The cultivation and production of these crops are expected to be affected by climate change and elevated ...
Yajie Zhang, Haishan Niu, Qiang Yu
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Change in Transferrin Receptor Concentrations with Age [PDF]
Clinical Chemistry, 1999 The common laboratory tests for evaluating iron status are serum iron, total iron-binding capacity, transferrin saturation, and ferritin (1). However, ferritin is one of the acute phase reactants, and its concentration is influenced by various clinical conditions (2).
J W, Choi, S H, Pai, M W, Im, S K, Kim
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Mapping the concentration changes during the dynamic processes of crevice corrosion by digital [PDF]
Journal of the Serbian Chemical Society, 2009 The dynamic process of crevice corrosion during anodic dissolution of a crevice electrode in a 5.0 mmol dm-3 NaCl solution has been studied by digital holographic reconstruction.
HENGLEI JIA +4 more
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In-line digital holography for the study of localized corrosion and dynamic processes of electrochemical reactions [PDF]
Journal of the Serbian Chemical Society, 2011 Digital holographic reconstruction has been used to map the transient concentration field within the diffusion layer, detect the dynamic processes of localized corrosion, such as pitting corrosion, crevice corrosion and scratch corrosion crack.
SHENHAO CHEN
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Structural changes in the German agri-food complex: the end of small and medium enterprises?
Agricultural Economics (AGRICECON), 2010 The article describes the concentration process, structural changes and competitiveness in the German agri-food sector over the last decade. This descriptive analysis aims to outline the developments at the individual stages of the food chain and to ...
Miroslava BAVOROVÁ
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Atmosphere, 2021 Despite having contributed the least to global warming and having the lowest emissions, the African region is the most vulnerable continent to climate change impacts.
Alberto F. Mavume +3 more
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