Results 91 to 100 of about 21,090,198 (171)

Cerebral microbleeds in geriatric patients with non-valvular atrial fibrillation

open access: yesКардиоваскулярная терапия и профилактика
Aim. To study the prevalence and structure of cerebral microbleeds (CMBs) in patients ≥80 years old with non-valvular atrial fibrillation in real-world practice.Material and methods.
M. S. Chernyaeva   +9 more
doaj   +1 more source

Geriatric factors affecting the safety of direct oral anticoagulants in atrial fibrillation patients aged 80 years and older: An observational prospective cohort study

open access: yesКубанский научный медицинский вестник
Background. Older age is associated with the presence of geriatric syndromes, whose effect on the safety of direct oral anticoagulants in atrial fibrillation patients is studied extensively.
M. S. Cherniaeva   +9 more
doaj   +1 more source

Distinct stage s of protein evolution as suggested by protein sequence analysis

open access: yes, 2001
. Evolution of proteins encoded in nucleotide sequences began with the advent of the triplet code. The chronological order of the appearance of amino acids on the evolution scene and the steps in the evolution of the triplet code have been recently ...
Valery M. Kirzhner   +3 more
core   +1 more source

Historical dessidence of Yury Trifonov in the novel The Impatient Ones

open access: yes, 2012
Статья посвящена роману Юрия Трифонова "Нетерпение". написанному для издательской серии "Пламенные революционеры". в контексте отечественного разномыслия 1970-х годов анализируются способы включения в текст исторического романа проблематике ...
Жукова, В. А., Zhukova, V.
core   +1 more source

Heteromorphism of “Homomorphic” Sex Chromosomes in Two Anole Species (Squamata, Dactyloidae) Revealed by Synaptonemal Complex Analysis

open access: yes, 2017
Iguanians (Pleurodonta) are one of the reptile lineages that, like birds and mammals, have sex chromosomes of ancient origin. In most iguanians these are microchromosomes, making a distinction between the X and Y as well as between homeologous sex ...
Pavel M. Borodin   +9 more
core   +1 more source

Prevalence of Coxiella burnetii infection (the causative agent of Q-fever) in the residents of the republic of Tatarstan

open access: yesЖурнал инфектологии
The official statistic data on Q fever cases in Russia do not reflect the real spread of this infection. One of the reasons for Q fever significant underdiagnosis is the difficulty of its clinical diagnosis due to the pronounced polymorphism of the ...
N. K. Tokarevich   +13 more
doaj   +1 more source

Du « dialogisme » et de la « polyphonie » dans deux ouvrages russes des années soixante : Une semaine comme une autre de Natal´ja Baranskaja et Bilan préalable de Jurij Trifonov

open access: yes, 1986
Lahusen Thomas. Du « dialogisme » et de la « polyphonie » dans deux ouvrages russes des années soixante : Une semaine comme une autre de Natal´ja Baranskaja et Bilan préalable de Jurij Trifonov.
Thomas Lahusen, Lahusen, Thomas
core   +1 more source

Trifonov, S. I.

open access: yes, 2023
Trifonov, S. I.
core  

Amplitude Estimate of the Radio Signal with Unknown Duration and Initial Phase

open access: yes, 2014
Quasi-likelihood and maximum likelihood estimate algorithms of the amplitude of a radio signal with free-form envelope and unknown duration and initial phase are synthesized. Characteristics of the synthesized algorithms are found.
A A Artemenko   +4 more
core  

Thiazole Containing Amidopyridinate Organolanthanides: Synthesis and Catalytic Activity in the Intramolecular Hydroamination and Isoprene Polymerization

open access: yes, 2015
Neutral dialkyl organolanthanide (YIII, LuIII, ErIII, YbIII) complexes stabilized by tridentate ?N-,N,N? monoanionic thiazole amidopyridinate ligands have been synthesized and completely characterized.
Giambastiani Giuliano   +3 more
core  

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