Results 31 to 40 of about 11,258 (258)

Potassium isotopes evidence reveals agricultural practices accelerate soil erosion

open access: yesGeoderma
Stable potassium (K) isotopes, denoted as δ41K, are increasingly utilized for tracing geogenic processes and anthropogenic effects in terrestrial ecosystems.
Rui Qu, Guilin Han
doaj   +1 more source

Ecological and toxicological features of the effect of stable cesium on striated muscle tissue (myocardium and skeletal muscles) of mammals

open access: yesRegulatory Mechanisms in Biosystems, 2023
Recently, the risks of radiation danger have significantly increased. This is connected with the start of a full-scale war against Ukraine and the seizure of the Zaporizhzhya NPP by the Russian Federation, which has the second most powerful arsenal of ...
O. Yermishev
doaj   +1 more source

Calcium Isotopes and the Problem of Potassium [PDF]

open access: yesNature, 1934
BY the systematic use of the purest materials, I have succeeded in reducing the effect of potassium in the mass-spectrum of calcium to a negligible quantity. Under these conditions, the line 41 disappears completely and it is quite safe to conclude that the isotope Ca 41 does not exist, at least to 1 part in 1000, in the element.
openaire   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

open access: yesFEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana   +5 more
wiley   +1 more source

Efficacy of Trophic Transfer of Radioactive and Stable Isotopes of Metals to Zoobenthos-Feeding Fish of the Yenisei River [PDF]

open access: yesЖурнал Сибирского федерального университета: Серия Биология, 2013
Accumulation of radioactive and stable isotopes of metals in trophic chain of the Yenisei River leading to zoobenthivorous fish species, dace (Leuciscus leuciscus baicalensis) and grayling (Thymallus arcticus), have been investigated.
Tatiana A. Zotina   +3 more
doaj  

De novo synthesis of short‐chain aldehydes and hydrocarbons secreted by the brown marmorated stink bug Halyomorpha halys

open access: yesFEBS Open Bio, EarlyView.
The brown marmorated stink bug, Halyomorpha halys, mainly secretes 4‐oxo‐(E)‐2‐hexenal, (E)‐2‐decenal, dodecane and tridecane, a mixture representative of that released by many heteropterans. We demonstrated that H. halys can synthesise these secretory components de novo using dietary glucose.
Haruna Fujimori, Koji Noge
wiley   +1 more source

Geothermal field of the Grodno region of the Republic of Belarus

open access: yesЖурнал Белорусского государственного университета: География, геология, 2023
The geothermal field of the platform cover within the Grodno region is considered. The cover rests on a crystalline basement of Precambrian rocks. Temperature distribution maps for depths of 100; 200 and 300 m below ground level were compiled based on ...
Владимир Игнатьевич Зуй
doaj  

Deciphering Degassing and Source Effects in Cl Isotopes in Melt Inclusions: The Possible Role of Amphibole in the Magma Source of Stromboli (Aeolian Island Arc)

open access: yesFrontiers in Earth Science, 2022
Chlorine isotopes have emerged as a new geochemical tool over the past 15 years. Most of the data consist of bulk rock data, with a minority carried out in situ on melt inclusions using secondary ion mass spectrometry.
Anne-Sophie Bouvier   +2 more
doaj   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Using Stable Isotopes of Carbon and Nitrogen to Mark Wild Populations of Anopheles and Aedes Mosquitoes in South-Eastern Tanzania.

open access: yesPLoS ONE, 2016
BackgroundMarking wild mosquitoes is important for understanding their ecology, behaviours and role in disease transmission. Traditional insect marking techniques include using fluorescent dyes, protein labels, radioactive labels and tags, but such ...
Mercy A Opiyo   +5 more
doaj   +1 more source

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