scholarly journals Bronchial Glands: Age, Regional and Individual Structural Features

2021 ◽  
Vol 10 (3) ◽  
pp. 47-52
Author(s):  
S. V. Klochkova ◽  
T. A. Akmatov ◽  
N. T. Alexeeva ◽  
D. B. Nikityuk

The aim was to study the quantitative indicators and structure of the distribution of the glands in human main bronchi in the age aspect.Material and methods. The object of the study was the glands in the walls of the main bronchi, obtained as a single complex together with the lower part of the trachea, including the area of bifurcation. Samples were taken from 110 corpses of people in the age range from the neonatal period to 87 years (10 observations in each age group), who died from causes not related to the pathology of the respiratory system and did not have pathological changes in the respiratory system at autopsy. For micro-macroscopy using an MBS-9 binocular microscope, the glands in the walls of the main bronchi were selectively stained with methylene blue according to R.D. Sinelnikov, followed by fixation in a saturated solution of ammonium picric acid. The following characteristics were analyzed: the shape of the glands, their total number on the total preparation, the density of their location (the number of the mouths of the excretory ducts per 1 cm2), the width of their initial section. Due to the normal distribution of the data, the methods of parametric statistics based on the Statistica 6.0 program were used for statistical data processing. Statistical data processing included the calculation of the arithmetic mean indicators, their errors, the analysis of the amplitude of the variation series of each indicator was carried out.Results. The performed macro-microscopic examination revealed an asymmetry in the distribution of glands – the number and density of distribution of glands was 1.50–2.10 times higher (p <0.05) for the left bronchus than for the right and 1.56–2.91 (p <0.05) times more in the cartilaginous than in the membranous part. At the same time, the width of the orifice of the gland showed opposite patterns. In terms of age, there was an increase in the number of glands and their size with a maximum by the age of 21–35 and a subsequent decrease by senil age. The distribution density decreased throughout the entire period of life.Conclusion. The revealed age, regional and individual features of the structure of the glandular apparatus of the main human bronchi may be of interest both in scientific research and in clinical practice, forming a basic description of the structural norm.

2021 ◽  
Vol 10 (1) ◽  
pp. 21-26
Author(s):  
S. V. Klochkova ◽  
M. K. Allakhverdiev ◽  
N. T. Alexeeva ◽  
A. G. Kvaratskhelia ◽  
S. O. Fetisov ◽  
...  

The aim was to study the macro-microanatomy and morphometric characteristics of the glands of the right, left and common hepatic ducts in people of different ages under conditions of relative norm.Material and methods. The experimental material included a complex consisting of the left, right and common hepatic ducts obtained from the corpses of 126 persons of different age groups who died from causes not related to the pathology of the digestive system. The glands of the hepatic ducts were selectively stained with methylene blue according to R.D. Sinelnikov, followed by fixation in a saturated solution of ammonium picric acid. The macroscopic structure and microstructure of gels were studied using an MBS-9 stereomicroscope. The analysis included the percentage of glands with different numbers of initial divisions. The studied morphometric parameters included the total number of glands, the length and width of their initial part. Methods of parametric statistics based on the Statistica 6.0 software were used for statistical data processing. Statistical data processing included the calculation of the arithmetic mean indicators, their errors, the analysis of the amplitude of the variation series of each indicator was carried out.Results. According to the results of the study, the number of glands in the walls of the common hepatic duct during postnatal ontogenesis was 1.30–1.84 times higher (p<0.05) compared to the right hepatic duct and 1.39–2.13 times higher (p<0.05) than the same indicator in the walls of the left hepatic duct. There was also a tendency according to which the size of the initial section of the glands of the common hepatic duct was larger than that of the right and left hepatic ducts. The minimum and maximum individual values of the total number of glands, the length and width of the initial section in the walls of the common hepatic duct were also higher in comparison with the analogous parameters of the right and left hepatic ducts.Conclusion. Age-related, regional and individual characteristics of the number and size of the glands of the hepatic ducts have been revealed; variants of the shape of the glands in different age periods have been determined, which is important not only for the development of a new scientific direction – morphological exocrinology, but also for gastroenterology, surgery of the extrahepatic biliary tract.


2020 ◽  
pp. 5-9
Author(s):  
A.Yu. Sentsov ◽  
◽  
I.V. Ryabov ◽  
A.A. Ankudinov ◽  
Yu.E. Radevich ◽  
...  

2016 ◽  
Vol 870 ◽  
pp. 191-195
Author(s):  
N.A. Vil'bitskaya ◽  
S.A. Vilbitsky ◽  
A.G. Avakyan

The peculiarities of using mathematical and statistical data processing methods in studying the intensification in the process of sintering a ceramic material with a high content of high-calcium waste, and mineralizing sintering lithium-containing waste were studied. The region of optimal ceramic masses composition, which allows obtaining ceramic tiles with high functional properties, was defined.


2020 ◽  
Vol 15 ◽  
pp. 59-62
Author(s):  
Tamara Grubi

Increased interest in the study of perfectionism of a person is becoming more and more relevant, it can be explained by the rapid pace of life, increasing competition, the cult of perfectionism and individual accomplishments. To diagnose perfectionism they use questionnaires, however, the vast majority of them have two scales. In the «Great Triennial Scale of Perfectionism», perfectionism is viewed as a richly varied construct that combines three types – «hard», «self-critical» and «narcissistic». In turn, each of these types is composed of several scales, which are included in the inventory in order to increase reliability and accuracy in the assessment. The results of the process of translation, adaptation and standardization of the quantifier are presented. Data on primary statistical data processing, reliability, validity of the technique, correlation and factor analysis of its indicators according to psychometric requirements are given. The reliability and validity of the instrument and the possibility to use it for investigative and psychodiagnostic purposes has been proved.


2021 ◽  
pp. 36-49
Author(s):  
Halyna Zelenchuk ◽  
Natalia Kozan ◽  
Valeriya Chadiuk

The article presents materials and research methods that are used both to identify an unknown person and to predict a person's susceptibility to illegal actions of varying severity. In particular, this article describes anthroposcopic, anthropometric, dermatoglyphic methods, statistical data processing and neural network forecasting, which are widely used in modern forensics and forensic science. The relevance and objectives of the above research methods are formulated in order to predict a person's propensity to illegal actions of varying severity.


2021 ◽  
Vol 12 (3) ◽  
pp. 397-404
Author(s):  
Dekky SI Efendi ◽  
Sonny Hersonna ◽  
DJ Suyaman

Competence in an organization or company is important in supporting the performance produced by employees. The management of course will make efforts to increase the competence of its employees with the hope that the performance of the employees will make their work complete and the output produced is of high quality. Recognizing the importance of competence on performance, the authors helped by examining these variables. In this study the researchers collected data by distributing it to all employees at PT Batang Bumi Mandiri with a total of 25, of which the entire population will also be sampled because the sampling method used is the saturated sample technique. In processing this data used statistical data processing tools in the form of SPSS version 26 to assist the author in processing research data. The result of the research is that competence has an effect on performance. The competency variable also has a coefficient of determination of 16.5% to affect performance, while the remaining 83.5% is influenced by other variables not examined in this study.


1969 ◽  
Vol 64 (328) ◽  
pp. 1679
Author(s):  
J. Wanzer Drane ◽  
Joan S. Reisch ◽  
Theodor D. Sterling ◽  
Seymour V. Pollack

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