Results 31 to 40 of about 23,264 (218)

Current state and problems of poultry breeding in Russia (review)

open access: yesАграрная наука Евро-Северо-Востока, 2020
Modern poultry breeding in Russia is one of the fastest growing sectors of agriculture, but the prosperity of the industry is almost entirely dependent on supplies of breeding material from abroad.
E. S. Fedorova   +2 more
doaj   +1 more source

Safety and Immunogenicity of Meningococcal Groups A and C Polysaccharide Vaccine in Adults 18–60 years of age

open access: yesЭпидемиология и вакцинопрофилактика, 2023
Relevance. In the Russian Federation, despite the low incidence rate in 2020–2021, there are subjects where the incidence rate of meningococcal infection (MI) exceeds the national average by 2–9 times.
V. V. Romanenko   +3 more
doaj   +1 more source

Strategiczne priorytety bezpieczeństwa Gruzji po konflikcie z Federacją Rosyjską w 2008 roku

open access: yesPoliteja, 2023
GEORGIA’S STRATEGIC SECURITY PRIORITIES AFTER THE 2008 CONFLICT WITH THE RUSSIAN FEDERATION The aim of the article is to present the security determinants as well as changes regarding the strategic priorities of state security of Georgia after the war
Piotr Swoboda, Andrzej Dawidczyk
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

open access: yesAdvanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais   +32 more
wiley   +1 more source

LLM‐Assisted Design of Ultralow‐κ$\kappa$ Chalcogenides

open access: yesAdvanced Science, EarlyView.
An AI assisted, physics guided workflow accelerates the discovery of ultralow thermal conductivity materials by combining Bayesian optimization, evidence conditioned LLM reasoning, and automated physics‐based validation. The framework uncovers dynamically stable Ag based chalcogenides with ultralow thermal conductivity and promising thermoelectric ...
Yujie Liu   +9 more
wiley   +1 more source

The Military Revolution of Peter I – Quantitative Measurement

open access: yesВестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2022
Introduction. The article is devoted to the analysis of the processes related to the modernization of the Russian army in the times of Peter I.
Paweł Krokosz, Karol Łopatecki
doaj   +1 more source

Spatiotemporal Regulation of Hierarchical Assembly of Hydroxyapatite for Enamel Remineralization

open access: yesAdvanced Science, EarlyView.
Biomimetic repair exhibits unique advantages for enamel regeneration compared with conventional clinical treatments. An enzymatic mineralization system (EMS) is developed, where the resulting HAP nanorods hierarchically assemble into a highly ordered structure on the enamel surface through the spatiotemporal modulation of interfacial energies of ...
Zhenhang Tang   +15 more
wiley   +1 more source

Optical Access to Dark Excitons Via Spin–Phonon Fano Interference

open access: yesAdvanced Science, EarlyView.
Dark excitons in quantum dots neither absorb nor emit light and stay hidden from optical spectroscopy. Quantum interference now reveals them: light scattered by acoustic phonons interferes with a phonon‐assisted spin flip between bright and dark exciton, carving a Fano dip into the spectrum whose position gives the bright–dark splitting. Magnetic field,
Janina J. Schindler   +7 more
wiley   +1 more source

A Damage‐Gated Small‐Molecule Chimera Selectively Enhances Mitophagy by Coupling Dysfunctional Mitochondria to Autophagy

open access: yesAdvanced Science, EarlyView.
MG‐1 is a bifunctional small molecule that enhances the removal of damaged mitochondria through autophagy, the cell's recycling pathway. Its activity increases under mitochondrial stress, with minimal effects on basal autophagy. MG‐1 also improves movement in a zebrafish model of mitochondrial dysfunction, supporting further investigation of this ...
Ratislav M. Ozhiganov   +24 more
wiley   +1 more source

The Formation and Development of the Legal Status of a Consumer of Paid Medical Services in the Russian Health Care System in the XVIII – Early XX Centuries

open access: yesСибирское юридическое обозрение, 2020
The socio-economic situation in Russia over the past decades has undergone serious changes that could not but affect the health system. There have been prerequisites for the development of private medicine, which has been supported by the state ...
M. V. Soboleva
doaj   +1 more source

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