Publications by authors named "V N Pokusaeva"
Article Synopsis
- Animals use compensatory actions, based on global visual motion cues called optic-flow, to maintain stability and efficiently navigate their surroundings.
- This study focuses on the fruit fly (Drosophila) to uncover specific neural circuits involved in visual course control, rather than relying solely on the simpler optomotor response traditionally studied in insects.
- The research reveals that electrical coupling between optic-flow-sensitive neurons, along with chemical synapses in the HS-H2 network, is crucial for proper navigation and turning behaviors, highlighting a new role for gap junctions in these processes.
[The birthing chair, obstetric bed and gynecological chair in obstetrics and gynecology in Russia of XVIII-XX centuries].
Probl Sotsialnoi Gig Zdravookhranenniiai Istor Med
March 2024
The purpose of the study is to investigate material culture of obstetrics in New and Modern history of Russia. The most important objective of research is to involve into scientific circulation Russian empirical material in order to study transformation of culture of childbirth during transition from traditional to biomedical model of childbirth exemplified by material culture items (maternity beds, chairs, armchairs). The key approaches were those of historical anthropology, social history of medicine, theory of social control and medicalization.
View Article and Find Full Text PDFBackground: Biases of DNA repair can shape the nucleotide landscape of genomes at evolutionary timescales. The molecular mechanisms of those biases are still poorly understood because it is difficult to isolate the contributions of DNA repair from those of DNA damage.
Results: Here, we develop a genome-wide assay whereby the same DNA lesion is repaired in different genomic contexts.
Background: It has been proven that vitamin D plays an important role in pregnancy. Deficiency of this element may be associated with the risk of developing gestational diabetes mellitus, preeclampsia, placentar insufficiency, low birth weight and premature birth.
Aims: To conduct an epidemiological analysis of vitamin D supply in women at different stages of pregnancy, living in Russia.
Article Synopsis
- Understanding the fitness landscape is crucial for grasping how genetic information results in functional organisms, with this study examining the His3 gene involved in histidine synthesis in various species.
- Only 15% of amino acids in yeast His3 orthologues were consistently neutral, while the other 85% had fitness effects that varied based on the genetic context.
- About 67% of amino acid substitutions exhibited sign epistasis, showing different fitness impacts depending on the genetic background, contributing to a complex fitness landscape where many optimal paths are blocked.