Results 101 to 110 of about 4,052,823 (334)

A Precise Measurement of the Oxygen Isotope Effect on the Néel Temperature in Cuprates

open access: yesAdvances in Condensed Matter Physics, 2011
A limiting factor in the ability to interpret isotope effect measurements in cuprates is the absence of sufficiently accurate data for the whole phase diagram; there is precise data for 𝑇𝑐, but not for the antiferromagnetic transition temperature 𝑇𝑁 ...
E. Amit, A. Keren, J. S. Lord, P. King
doaj   +1 more source

Developmental Environmental Chronotoxicity by Polystyrene Nanoplastics Exacerbates High‐Fat Diet‐Induced Pediatric MAFLD Through Circadian Disruption and Mitochondrial Dysfunction

open access: yesAdvanced Science, EarlyView.
Polystyrene nanoplastics exacerbate high‐fat diet‐induced metabolic dysfunction in an age‐dependent manner. Juvenile mice exhibit greater susceptibility, characterized by circadian disruption, impaired mitochondrial function, reduced energy metabolism, and enhanced hepatic lipid accumulation.
Peihao Xu   +10 more
wiley   +1 more source

Examination of stable carbon and oxygen isotopic variability in the cellulose and wholewood of Castanea sativa Mill., Fagus sylvatica L., Pinus sylvestris L. and Quercus robur L.

open access: yesActa Silvae et Ligni, 2018
This paper presents results from a comparison of wholewood and cellulose carbon and oxygen isotope ratios for four UK tree species. These species occur within the historic buildings archive as both primary and supplementary construction materials and ...
Sladden Ben   +3 more
doaj   +1 more source

Multi-isotope analysis and the reconstruction of prey species palaeomigrations and palaeoecology [PDF]

open access: yes, 2010
This thesis explores the use of multi-element isotope analysis and intra-tooth sampling to reconstruct prey species ecology and biogeography. Modern caribou (Rangifer tarandus ssp.) and bison (Bison bison) from North America are used to assess the ...
BRITTON, KATE,HELENA
core  

(Table S1) Oxygen isotope ratios of sclerosponge Montego-Bay_Ce96

open access: yes, 2003
(Table S1) Oxygen isotope ratios of sclerosponge Montego ...
Joachimski, Michael M   +13 more
core   +1 more source

Linker‐Locking Strategy for the Rigidification of Flexible Metal–Organic Framework: Structural Stabilization and Controlled ESIPT for H2O/D2O Sensing

open access: yesAdvanced Science, EarlyView.
A linker‐locking strategy rigidifies the flexible metal–organic framework (MOF) MIL‐53‐(OH)2 via the cooperative encapsulation of ligands and structural water. This network significantly enhances the framework's aqueous stability. Crucially, rigidification suppresses enol emission to yield a single keto tautomer state with an extended lifetime ...
Amitosh Sharma   +8 more
wiley   +1 more source

The oxygen isotope enrichment of leaf-exported assimilates – does it always reflect lamina leaf water enrichment?

open access: yesNew Phytologist, 2013
The oxygen stable isotope composition of plant organic matter (OM) (particularly of wood and cellulose in the tree ring archive) is valuable in studies of plant–climate interaction, but there is a lack of information on the transfer of the isotope signal
A. Gessler   +8 more
semanticscholar   +1 more source

(Table 1) Oxygen isotope composition in phosphates from Pacific seamounts

open access: yes, 1985
(Table 1) Oxygen isotope composition in phosphates from Pacific ...
Nikolaev, Sergey D   +7 more
core   +1 more source

High‐Density Type I Collagen Promotes IFN‐γ+ CD8+ T Cell Exhaustion via SAT1‐ASS1‐Mediated Glutamine Accumulation and Ferroptosis in Triple‐Negative Breast Cancer

open access: yesAdvanced Science, EarlyView.
High‐density type I collagen promotes glutamine (Gln) accumulation–related ferroptosis of TNBC cells via the spermidine/spermine N1‐acetyltransferase 1 (SAT1)‐ argininosuccinate synthase (ASS1) signaling pathway, thus depriving immune cells of Gln supply and inducing IFN‐γ+ CD8+ T cell exhaustion in the TME.
Jinyan Wang   +11 more
wiley   +1 more source

ELECTRON PARAMAGNETIC RESONANCE (EPR) SPECTROSCOPY AND GEOCHEMISTRY IN TIN EXPLORATION AT RENISON, TASMANIA AUSTRALIA [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1999
Rock powder of dolomite samples from the Renison mine area of Tasmania, Australia were analyzed by electron paramagnentic resonance spectroscopy (EPR), Atomic Absorption and Mass Spectrometer to identify alteration related to mineralisation.
doaj  

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