Results 81 to 90 of about 121,629 (140)

Resident and Migratory Falcons' Breeding Phenology and Productivity Respond Differently to Weather and Climate Change Across the Arctic

open access: yesGlobal Change Biology, Volume 32, Issue 8, August 2026.
Climate change is altering breeding phenology and productivity of peregrine falcons and gyrfalcons across the circumpolar Arctic. Long‐term monitoring shows that responses vary among study areas and Arctic regions, with some populations advancing hatch dates while others show weaker or contrasting trends, highlighting spatially variable effects of ...
Nick A. Gulotta   +27 more
wiley   +1 more source

INFLUENCE OF MINERAL FERTILIZERS ON THE INCOME AND RESERVES OF ORGANIC CARBON IN THE GRAIN FALLOW CROP ROTATION OF THE FOREST-STEPPE ZONE OF THE TRANS-URALS

open access: yesSiberian Journal of Life Sciences and Agriculture
Background. Organic carbon, which is part of humic substances, is the basis for the fertility of arable soils. The intensity of agriculture has led to an increase in the use of mineral fertilizers, which have a significant impact on soil formation ...
Evgeniy A. Demin, Stanislav S. Miller
doaj   +1 more source

Lead isotopic systematics of massive sulphide deposits in the Urals: Applications for geodynamic setting and metal sources

open access: yes, 2016
Lead isotopic compositions of 61 samples (55 galena, one cerussite [PbCO3] and five whole ore samples) from 16 Volcanic Hosted Massive Sulphide (VHMS) deposits in the Urals Orogeny show an isotopic range between 17.437 and 18.111 for 206Pb/204Pb; 15.484 ...
S. Tessalina   +5 more
semanticscholar   +1 more source

Complementary Insights From Range Size and Range Structure in Explaining Species Distributions

open access: yesJournal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim To assess the relationship between measures of species' range size and range structure, and to analyse how these measures differ in their relationships to species' intrinsic characteristics and external geographic drivers. Location Europe. Taxon 813 vascular plant taxa endemic to Europe.
Anna M. Csergő   +4 more
wiley   +1 more source

LifeMet: Report on the 2024–2025 meteorite recovery expedition in Dronning Maud Land, Antarctica for the study of microbe–meteorite interactions

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 8, Page 1847-1860, August 2026.
Abstract Since the discovery of nine meteorites near the Yamato mountains in 1969, Antarctica has been recognized as a superb location for meteorite recovery. While Antarctic recovery expeditions prioritize meteorite preservation for mineralogical and planetary studies, meteorites are not typically collected for biological applications.
Rachael Lappan   +2 more
wiley   +1 more source

Influence of N‐Functionalization of Amiridine on the Biological Activity of Its Conjugates as Multitarget Agents for Potential Treatment of Alzheimer's Disease

open access: yesChemMedChem, Volume 21, Issue 14, 29 July 2026.
New conjugates of amiridine and salicylimine/amine with an N‐acylalkylene spacer were synthesized. N‐acylation of amiridine conjugates leads to a decrease in their protonation, resulting in a substantial reduction in anticholinesterase activity and relative inability to block Aβ42 self‐aggregation compared to previously studied analogs with an N ...
Galina F. Makhaeva   +14 more
wiley   +1 more source

Assessing the applicability of a special model of plutonium behavior in presence of chelates in cases of wound intake of industrial compounds of plutonium in the FSUE Mayak PA workers

open access: yesРадиационная гигиена
In cases of intake of higher levels of plutonium, a chelate diethylenetriaminepentaacetic acid is used to enhance the elimination and reduce deposition rate in the organs of major deposit in the form of calcium compound Ca-DTPA (pentacinum). To interpret
A. B. Sokolova   +2 more
doaj   +1 more source

Soft Medical Form with Nanoparticles to Stop Bleeding: Substantiation of Composition and Technology of Obtaining

open access: yesРазработка и регистрация лекарственных средств, 2019
Introduction. Due to the growth of general surgical diseases, the treatment and cessation of bleeding is an important problem of medicine and pharmacy.
Yu. N. Barsukova, O. A. Melnikova
doaj   +1 more source

Model of the structure of the Earth’s crust and Upper Mantle along the Middle Ural transect (Based on the results of Volumetric seismic Density Modeling)

open access: yesGeoresursy
A geological and geophysical model of the structure of the earth’s crust and upper mantle along the Middle Ural transect is presented (as a vertical section of a three-dimensional seismic density model).
P. S. Martyshko   +2 more
doaj   +1 more source

Comparative analysis of inductively coupled plasma mass spectrometry and alpha spectrometry methods to measure plutonium activity in biosubstrates

open access: yesРадиационная гигиена
Currently, the most common methods to measure the activity of transuranium elements in biological samples are alpha radiometry and alpha spectrometry. Of these, alpha spectrometry is the most sensitive and selective method.
V. R. Batalov   +3 more
doaj   +1 more source

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