Development of the rat isocortex in antenatal and postnatal ontogenesis

2021 ◽  
Vol 23 (1) ◽  
pp. 31-34
Author(s):  
E. I. Bon ◽  

This paper analyses and summarizes the literature data on the development of the rat isocortex in antenatal and postnatal ontogenesis. Information about the maturation periods of the isocortex neurons provides a fundamental basis for further studies of its development and the influence of various endogenous and exogenous factors on this process.

2020 ◽  
Vol 76 (4) ◽  
pp. 77-80
Author(s):  
E.S. Mishina ◽  
◽  
M.A. Zatolokina ◽  
E.S. Zatolokina ◽  
◽  
...  

The peculiarities of the skin formation as an organ are the basic knowledge for studying the aging and regeneration process. During studying this issue it is necessary to take into account the exogenous factors affecting the skin, which, in turn, is a "barrier organ". The study was carried out on the skin of male Wistar rats in the late prenatal and early postnatal periods. At the initial stages of its formation, the skin undergoes its morphofunctional changes such as thickening of the epidermis and the appearance of the stratum corneum, as well as thickening of the dermis and changes in the collagen fibers shape that make up its structure. The formation of the skin as a full-fledged "barrier organ" occurs in early postnatal ontogenesis.


2012 ◽  
Author(s):  
N. M. Dubrovskaya ◽  
D. S. Vasilev ◽  
N. L. Tumanova ◽  
N. N. Nalivaeva ◽  
O. S. Alexeeva ◽  
...  

Author(s):  
Arwanto Arwanto ◽  
Wike Anggraini

ABSTRACT Understanding policy process involves many distinctive approaches. The most common are institutional, groups or networks, exogenous factors, rational actors, and idea-based approach. This paper discussed the idea-based approach to explain policy process, in this case policy change. It aims to analyse how ideas could assist people to understand policy change. What role do they play and why are they considered as fundamental element? It considers that ideas are belong to every policy actor, whether it is individual or institution. In order to answer these questions, this paper adopts Kingdon’s multi streams approach to analyse academic literatures. Through this approach, the relationship between ideas and policy change can be seen clearer. Ideas only can affect in policy change if it is agreed and accepted by policy makers. Therefore the receptivity of ideas plays significant role and it emerges policy entrepreneurs. They promote ideas (through problem framing, timing, and narrative construction) and manipulate in order to ensure the receptivity of ideas. Although policy entrepreneurs play significant role, political aspects remains the most important element in the policy process. Keywords: policy change, ideas, idea-based approach, Kingdon’s multiple streams, policy entrepreneurs.


2015 ◽  
Vol 63 (1) ◽  

The process by which young talents develop to become top-class players once they reach the age of maximum performance is influenced by numerous factors. Among the exogenous factors, the family plays a central role. In the context of a research project carried out in cooperation with the Swiss Football Association SFV, 159 former members of the national youth football team were interviewed retrospectively, among other things concerning their family circumstances. The study is interested in understanding two issues: 1) It examines which family conditions – compared with average Swiss families – lead to success in adolescence (nomination for a national youth team). 2) Since success in adolescence by no means guarantees top-level performance at the age of maximum performance, the heterogeneity of the sample’s adult level of performance is used to compare players who later achieve greater success to the less successful players. It is found that these players come from families with many chil-dren and a strong affinity to sports. Those players who are particularly successful at the age of maximum performance also felt they received more support from their parents and siblings during childhood and adolescence than the players who went on to be less successful.


2019 ◽  
Vol 21 (1) ◽  
pp. 50-54
Author(s):  
S. M. Zimatkin ◽  
◽  
A. V. Zaerko ◽  
К. M. Phedina ◽  
O. B. Ostrovskaya ◽  
...  

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