Results 11 to 20 of about 2,231,763 (313)

Ownership concentration and the change of media character and role [PDF]

open access: yesSociološki 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
doaj   +1 more source

Assessment of climate change impact on maize yield and yield attributes under different climate change scenarios in eastern India

open access: yesEcological 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
doaj   +1 more source

Changes Of Atmospheric Methane Concentration Parallel To Climatic Changes [PDF]

open access: yesAnnals 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
openaire   +1 more source

Impacts of 21st century climate change on global air pollution-related premature mortality [PDF]

open access: yes, 2013
Climate change modulates surface concentrations of fine particulate matter (PM2.5) and ozone (O-3), indirectly affecting premature mortality attributed to air pollution.
Horowitz, Larry W.   +9 more
core   +1 more source

Impacts of climate change and increasing carbon dioxide levels on yield changes of major crops in suitable planting areas in China by the 2050s

open access: yesEcological 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
doaj   +1 more source

Change in Transferrin Receptor Concentrations with Age [PDF]

open access: yesClinical 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
openaire   +2 more sources

And then there were four: a study of UK market concentration - causes, consequences and the scope for market adjustment [PDF]

open access: yes, 2003
While concentration measures are a good indicator of market structure, the link with competitiveness is more complex than often assumed. In particular, the modern theory of industrial organisation makes no clear statement regarding the impact of ...
Goodacre, Alan   +5 more
core   +1 more source

Detecting Concentration Changes with Cooperative Receptors [PDF]

open access: yesJournal of Statistical Physics, 2015
20 pages, 7 ...
Bo, Stefano, Celani, Antonio
openaire   +3 more sources

Structural changes in the German agri-food complex: the end of small and medium enterprises?

open access: yesAgricultural 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
doaj   +1 more source

Analysis of Climate Change Projections for Mozambique under the Representative Concentration Pathways

open access: yesAtmosphere, 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
doaj   +1 more source

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