Results 61 to 70 of about 66,293 (247)

Development of a Zebrafish Embryo‐Based Test System for Thyroid Hormone System Disruption: 3Rs in Ecotoxicological Research

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract There is increasing concern regarding pollutants disrupting the vertebrate thyroid hormone (TH) system, which is crucial for development. Thus, identification of TH system–disrupting chemicals (THSDCs) is an important requirement in the Organisation for Economic Co‐operation and Development (OECD) testing framework.
Lisa Gölz   +9 more
wiley   +1 more source

Magnetofossil Spike During the Paleocene-Eocene Thermal Maximum: Ferromagnetic Resonance, Rock Magnetic, and Electron Microscopy Evidence from Ancora, New Jersey, USA [PDF]

open access: yes, 2007
Previous workers identified a magnetically anomalous clay layer deposited on the northern United States Atlantic Coastal Plain during the Paleocene-Eocene Thermal Maximum (PETM).
Kirschvink, Joseph L.   +5 more
core   +4 more sources

Investigation on type and origin of iron mineralization at Mesgar occurrence, south of Zanjan, using petrological, mineralogical and geochemical data

open access: yesJournal of Economic Geology, 2015
Introduction Mesgar iron occurrence is located in northwestern part of the Central Iran, 115 km south of Zanjan. Although there is a sequence of volcanic-pyroclastic rocks accompanied by iron mineralization, no detailed works had been conducted in the ...
Mohammad Ebrahimi   +2 more
doaj  

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

open access: yesGeological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu   +3 more
wiley   +1 more source

Gigantism in unique biogenic magnetite at the Paleocene-Eocene Thermal Maximum [PDF]

open access: yes, 2008
We report the discovery of exceptionally large biogenic magnetite crystals in clay-rich sediments spanning the Paleocene-Eocene Thermal Maximum (PETM) in a borehole at Ancora, New Jersey. Aside from previously-described abundant bacterial magnetofossils,
Guerquin-Kern, Jean-Luc   +12 more
core   +2 more sources

Axiology of Life Experience: 20th-21st Centuries in the Prism of the Fate of a Titled Russian Nobleman

open access: yesКонцепт: философия, религия, культура
The biography genre was initially focused on the life stories of great people, kings and generals who decided the fate of countries and peoples. However, as the culture of memory became more democratized and numerous archives, documents, diaries, etc ...
V. S. Glagolev
doaj   +1 more source

Analysing the Drivers of Cropland Footprint in Leading Agricultural Nations: Evidence From MMQR Approach

open access: yesGeological Journal, EarlyView.
ABSTRACT Climate change represents the biggest current challenge for us and for future generations. Its impact on agriculture is undeniable, considering the food security goal. Thus, the cropland footprint has been distinguished as a comprehensive index for assessing the impact of environmental changes in agricultural areas determined by the increased ...
Ibrahim Cutcu, Magdalena Radulescu
wiley   +1 more source

Types and characteristics of vulnerable eco-geological environments on the Yunnan plateau and countermeasures for ecological restoration

open access: yesCarsologica Sinica
The geological background of the Yunnan plateau in the study area is complex, with significant uplift caused by the Himalayan orogeny, intense neotectonic movements, and pronounced variations in fault block elevation.
Qin LI   +4 more
doaj   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

open access: yesGeological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang   +3 more
wiley   +1 more source

Mass wasting at the base of the South central Chilean continental margin: the Reloca Slide [PDF]

open access: yes, 2009
Offshore south central Chile (35° S–42° S), the morphology of the lowermost continental slope and trench floor witnesses a voluminous submarine mass-wasting event.
Behrmann, Jan Hinrich   +4 more
core   +1 more source

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