Results 91 to 100 of about 70,075 (318)

Fractionation of carbon and oxygen isotopes in 13C-rich Palaeoproterozoic dolostones in the transition from medium-gradegreenschist facies: a case study from the Kola Superdeep Drillhole [PDF]

open access: yes, 2003
Samples from the Kola Superdeep Drillhole (12 262 m), a deep drillhole (1060 m), and from the surface, seaprated by only around 10 km, provided a unique opportunity for direct tracing of delta(13)C and delta(18)O changes through a low- to high-grade ...
Fallick, A.E.   +3 more
core  

(Table 2) Chemical composition of authigenic carbonates from bottom sediments of Northwest Pacific marginal seas

open access: yes, 1999
(Table 2) Chemical composition of authigenic carbonates from bottom sediments of Northwest Pacific marginal ...
A V Sorochinskaya (6971387)   +3 more
core   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Modélisation et analyse d’un milieu granulaire carbonaté à haute température

open access: yesRevue des Énergies Renouvelables, 2010
La compréhension et la maîtrise des facteurs qui gouvernent le traitement thermique des milieux granulaires sont nécessaires dans plusieurs applications de l’industrie chimique et pharmaceutique.
M. El Ouardi
doaj  

Drilling challenges and technological solutions in the development of oil deposits in fractured carbonate reservoirs [PDF]

open access: yesНанотехнологии в строительстве
Introduction. Currently, carbonate reservoirs play an increasingly significant role in the global hydrocarbon balance. Most of the deposits discovered in recent years are fractured carbonate reservoirs.
Alexander V. Melnikov   +3 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Impact of anthropogenic factor on changes in physical and chemical properties of chernozems in the lake Sevan basin of the republic of Armenia [PDF]

open access: yesBIO Web of Conferences
This article focuses on the study of changes in the physical and chemical composition of mountain chernozems of the Republic of Armenia under the influence of an anthropogenic factor.
Kroyan Samvel   +2 more
doaj   +1 more source

Fluid-Rock Interactions in Carbonates: Applications to CO2 Storage [PDF]

open access: yes, 2014
It is well established that more than half of the world’s hydrocarbon reserves are contained in carbonate reservoirs. In a global context, which is characterized by an increasing demand in energy, population growth and overall economic development, it is
Gharbi, Oussama
core   +1 more source

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