bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital Literacy to Improve Pedagogical and Professional Competence of Early Childhood Teacher
Authors: Khotimah Nurul , Reza Muhammad
Published: August 2022

Abstrak: Pada era transisi revolusi industri 4.0 menjadi 5,0, guru memerlukan kemampuan literasi komputer dengan kemampuan untuk mencari dan mengelola data secara digital serta mengoperasikan komputer. Para guru kemudian mengikuti Pendidikan Profesi Guru (PPG) dalam jabatan yang difasilitasi aplikasi google suite untuk guru yang profesional pada era revolusi industri 5.0. Penelitian ini bertujuan untuk mengimplementasikan kemampuan digital pada guru Pendidikan Anak Usia Dini (PAUD) dalam pembelajaran PPG PAUD dan meningkatkan kemampuan pedagogi guru PAUD. Metode yang digunakan adalah mixed method dengan pengumpulan data melalui google form, hasil wawancara, studi literatur, dan relevansi data melalui penelitian yang relevan. Hasil menunjukkan kenaikan yang signifikan pada kemampuan profesional guru PPG dalam jabatan tahap 1. Guru mendapatkan pendalaman materi pedagogi dan profesional, pengembangan perangkat pembelajaran, review perangkat pembelajaran, dan tes komprehensif.Abstract: In the transition era of the industrial revolution 4.0 to 5.0, teachers need computer literacy skills with the ability to search and manage data digitally and operate computers. On these grounds, numerous teachers take part in the teacher professional development program for in-service teachers (PPG dalam Jabatan) facilitated by the Google Suite application for professional teachers in the 5.0 industrial revolution era. This study aims to implement digital skills for early childhood education (PAUD) teachers in PPG and improve the pedagogical abilities of PAUD teachers. The method used is a mixed methods with data collection using Google Forms, interviews, literature studies, and data relevance through relevant research. The results show a significant increase in the professional ability of teachers who join stage 1 of the program. Teachers deepen the pedagogical and professional materials, development of educational materials, examination of learning material, and comprehensive tests.
Investigating Family and Peer Support on Learning Habits and Achievements in Online Learning
Authors: Azhari Septian Cahya , Rosali Ely Satiyasih , Firmansyah Muhamad Ferdy , Maulana Haikal Zulian
Published: August 2022

Abstrak: Penelitian ini bertujuan untuk menganalisis peranan dukungan keluarga dan teman sebaya pada masa pembelajaran daring terhadap prestasi belajar mahasiswa melalui kebiasaan belajar. Metode yang digunakan dalam penelitian ini adalah kuantitatif dengan jenis eksplanatori dan teknik analisis data menggunakan partial least square (PLS) dengan konstruk reflektif. Sampel yang diambil adalah mahasiswa pendidikan geografi angkatan tahun 2020 dan 2021 Universitas Siliwangi sebanyak 100 orang mahasiswa secara proportional random sampling. Penelitian ini menganalisis hubungan dukungan keluarga dan teman sebaya menjadi variabel eksogen, kebiasaan belajar menjadi variabel mediasi dan prestasi belajar menjadi variabel endogen. Hasil dari penelitian ini ditemukan bahwa dukungan keluarga dan teman sebaya memiliki tingkat pengaruh yang signifikan terhadap kebiasaan belajar, selain itu kebiasaan belajar mempengaruhi prestasi belajarAbstract: This study aimed to analyze the role of family and peer support during online learning on the students through study habits. The method used in this research is quantitative with explanatory type and data analysis technique using partial least square (PLS) with reflective construct. The samples taken were students of geography education classes of 2020 and 2021 at Siliwangi University, as many as 100 students by proportional random sampling. This study analyzes the relationship between family and peer support as the exogenous variable, learning habits as the mediating variable, and learning achievement as the endogenous variable. The results of this study are that the support of family and peers has a significant level of influence on study habits and that study habits affect learning achievement.
E-Modul Pembelajaran Pada Kewenangan Lembaga-Lembaga Negara dalam Pembelajaran PPKn
Authors: Ginting Henny Krisnawati , Susanti L.R. Retno , Chotimah Umi
Published: August 2022

This research aimed to develop e-module learning use flipbook maker on the authority of state institutions in learning Civics in the technical implementation unit of senior high school that is valid, practical and effective. This development method used the Rowntree development model which consisted of three stages, namely (1) planning; (2) writing preparation; (3) writing and editing. The evaluation used Tessmer’s evaluation stage, namely self evaluation, expert review, one to one, small group, and field test. The subjects of this research were X IPS 3 students of SMA Xaverius 1 Palembang. The validation results of e-module learning use flipbook maker by material, language and design experts obtained an average of 85,4 percent, so it was categorized as very valid. The practicality test results of e-module use flipbook maker in all groups obtained an average of 90,47 percent on one-to-one stage, and 85,71 percent on small group stage with a very practical category. The e-module learning effectiveness test results on student learning outcomes through an N-gain value was 0,7; it was the high category. Based on the research results, it can be concluded that the development of e-module learning use flipbook maker on the authority of state institutions in learning Civics in the technical implementation unit of senior high school has proven to be valid, practical and effective to be used in learning.
Pengembangan Media Animasi Pada Pembelajaran Elektronika Siswa SMK
Authors: Yusnidah Yusnidah
Published: August 2022

The purpose of this development research is to describe the process of developing electronic learning animation media for SMK students, describe the validation of animation media development from material experts and electronic learning media experts of SMK students, describe the feasibility of electronic learning animation media for SMK students. The data used is descriptive qualitative which is the main data through instruments from material expert respondents and media experts. The research used the Borg and Gall models which were adjusted based on 6 stages due to the situation and conditions of the Covid-19 pandemic, namely needs analysis, product specification planning, product design, product validation, product revision, and dissemination. The use of Canva Pro was used in the animation media development process with the response of material experts obtained an overall average of 79.17%, the category of "very satisfactory". Meanwhile, from media / design experts obtained an overall average of 94.18%, the category is "very satisfactory". Thus, animation learning media as a research product is declared suitable for use in electronic learning for SMK students.
History of Russia: textbook for students of non-historical specialties
Authors: Promyslov Nikolay , Yablokov Boris
Published: August 2022

Данное пособие содержит программу курса «История России», разработанную Государственным академическим университетом гуманитарных наук совместно с Институтом российской истории РАН в целях методического обеспечения преподавания в бакалавриате общеуниверситетского курса истории России на неисторических направлениях подготовки. В пособии представлен аннотированный план 18 тем, каждая из которых сопровождается проверочными вопросами и заданиями для текущего контроля успеваемости, списком источников для работы на семинарах, темами коллоквиумов, а также перечнем научной и учебной литературы по рассматриваемой теме, рекомендованной для самостоятельного изучения обучающимися.
Practical Application of the Results of Pilot Studies on the Purification of High-color Waters of the Northern Territories of the Russian Federation
Authors: Bebikhov Yu.V. , Semenov A.S.
Published: August 2022

Aspects of practical application of pilot studies of the aquatic environment in the Northern Territories on the example of the Republic of Sakha (Yakutia) were considered as a result of which the electrocoagulation method was substantiated and selected for the water cleaning at the surface source of the river Ochchu-Botubuya (Malaya Botuobiya) near the village of Tas-Yurykh. Optimum parameters of the clearing of water rate and precipitation after electrochemical treatment were identified. Revealed dependencies: water sample clarification on current density and processing time; time to clear the sample by power consumption; kinetics of coarse cotton fraction deposition over time. For the practical results' application of the pilot studies, a storage and a stationary coagulation plants were developed and tested.
Comparative Assessment of Heavy Metal Pollution of Snowpack by Iron and Steel Foundries
Authors: Kurbakov D.N. , Kuznetsov V.K. , Sidorova E.V. , Sarukhanov A.V. , Dementieva N.V. , Novikova N.V.
Published: August 2022

Comparative assessments performed on heavy metal pollution of snowpack in 30-km impact zones of Novolipetsk iron and steel foundries PJSC and NLMK-Kaluga electrometallurgical plant. The polyelement composition of the solid and liquid fractions was determined, and geochemical and sanitary-hygienic of snowpack pollution indicators were given.
The Effects of Online Task-Based Learning on the Acquisition of Second Conditional
Authors: Tenezaca Yadaicela Erika
Published: August 2022

The present study shows the effects of online Task-Based Learning on the acquisition of grammar topics in EFL context. It discusses the Willis’ (1996, 2012) TBL methodology focus on using tasks which are developed in three stages: pre-task, task cycle and language focus. The experiment was carried out in a private school in one of the biggest cities of Ecuador with 61 participants. The experimental group was taught using tasks. Meanwhile, the control group was taught using activities different from tasks. The findings are based on the result of pre and post-test between two groups through SPSS program. This study proves that Willis’ TBL framework has a positive effect for teaching online and helps to develop and engage a communicative language teaching. Although, it requires long-term planning and serious organizational considerations. Further researches might be in online TBL methodology for children and its effect in affective filter in virtual environments.
HTLV I/II Infection from Blood Donors of GUAYAQUIL – ECUADOR
Authors: Cadena Alvarado Juan , Orozco-Cerezo José , Morante-Muñoz Gisella , Silvera-Jácome Jair
Published: August 2022

Background: There are two linfo tropic human virus. The HTLV-1 causes the myelopathy which is linked with the HTLV-1 o Tropical spastic paraparesis (TSP) and Adult T-cell leukemia/lymphoma (ATL or ATLL). Therefore, the HTLV-2 has been related with neurological symptoms similar to the TSP. In Ecuador, there are not updated statistics about HTLV I/II infection.
Objective: To determine the seroprevalence of HTLV I/II infection in blood donors who attended to the blood bank in the ”Teodoro Maldonado Carbo” Hospital from Guayaquil, Ecuador, from April 2017 to December 2018.
Materials and methods: The population were twenty-three thousand one hundred ninetyfive (23 195) blood donors. The HTLV I/II antibody detection was done through the Chemiluminescence immunoassay (CLIA) technique.
Results: From 23 195 blood donors, 0.73% (n = 170) had a reactive or positive result for HTLV I/II antibodies. The 72% of donors (n=122) with a positive result were males and 28% (n = 48) were women. The average age of donors with a positive test result was 40 ± 21 years old. From the 170 reactive donors, 97 (57%) were employed, 51 were unemployed, 16 were farmers end 6 were students. From de full positive result donors, the 87% (n=148) lived in Guayaquil and 22 lived in another cities of Ecuador Conclusions: The seroprevalence of HTLV I/II infection in blood donors who participated in the research at ”Teodoro Maldonado Carbo” Hospital in Guayaquil, is 0.73% (n = 170); it means that for every 137 donors, one has reactive or positive test result. It confirms the importance of preventing the disease transmission through transfused blood.
Pedagogical Mediation and Popular Education for Promoters’ Training in Teenager´s Pregnancy Prevention
Authors: Berrones Berrones Oswaldo
Published: August 2022

The paper presents a systematization of the training process of 16 Mediators and 105 Educational Promoters with an emphasis on prevention of adolescent pregnancy. The objective of the experience was to train Community Change Agents through preparing to work for the prevention and reduction of adolescent pregnancy and a culture of heath prevention at the Centro del Muchacho Trabajador. This document was obtained through a systematic review of the De Waal Foundation own monitoring, follow-up and evaluation instruments. Through the methodologies of Pedagogical Mediation and Popular Education supported by ICTs, the skills and competencies of 16 professionals of the Centro del Muchacho Trabajador were strengthened, which generated a cascade effect to raise awareness of the importance of prevention of adolescent pregnancy with 1481 members of the educational community through home visits, community mapping and design of materials for a internet digital fair. It was concluded that, when strengthening the capacities of a group, technical and methodological inputs should be provided to replicate activities each time need it. On the other hand, work through participatory methodologies and involving the entire educational community allows joint actions from different areas to be carried out, which are taught from a socio-ecological model.
Physical Activities at Workplace for Preventing Occupational Diseases
Authors: Orellana-Iñiguez Johanna , Bravo Navarro Wilson
Published: August 2022

The aim of this study is related to the working day is one of the most important factors and with the greatest influence on our state of mind and well-being, illnesses caused by work activities are more frequent and closely linked to absenteeism in the day, a low mood as well as well as health, affecting in a general way, the worker’s lifestyle, which leads to a labor problem for the employer, for this reason this review article focused on the evaluation of the incorporation of physical activity in this exercise, the same that brings benefits to the employer and the employee, by guaranteeing and generating a better quality of life and improving the image of the company by focusing on raising awareness of the health of its staff, within this review evaluated case studies are presented in Ecuador, the same ones that confirm that the addition of physical activity brings positive effects on occupational health.
Academic Performance in Basic Subjects in Higher Education Before and After COVID-19
Authors: Vaca Zambrano Enrique , Morales Rodas Lina , Alzola Tamayo Alberto
Published: August 2022

Due to the COVID-19 pandemic, the study modality changed from face-to-face to virtual, and the teaching-learning process changed drastically. Therefore, it was necessary to determine the effect of this pandemic on the academic performance of essential subjects that are part of the curriculum in most higher education careers. This research used the observational and analytical method on 101 students enrolled in the Mining career and a balanced factorial mathematical model and separation of means according to a significance value of 0.05 (p<0.05). It was possible to determine that the academic performance of the students of the Mining career of the Escuela Superior Politécnica de Chimborazo in the basic subjects is different from the virtual average at least in a partial or in the final exam. In this case, it was significantly different in the second and third midterm, with the virtual performance being higher than the classroom performance.
Soil Quality: The Physical, Chemical, and Biological Parameters
Authors: Estuardo Carrillo-Barahona William , Ángel Osorio-Rivera Miguel , Javier Riera-Guachichullca Erik
Published: August 2022

The present investigation will describe the main properties of tropical soils, as well as the different qualities of the soil, and how they vary during the period of time that the investigation takes, because it is necessary to analyze and describe the different components that influence the changes in soil quality, to evaluate the sensitivity of a series of chemical and biochemical parameters in representative soils of the Amazon region under different management in order to establish the parameters that show in a more sensitive and timely manner the degree of degradation or recovery; compare the information generated from soils under cultivation with the same type of undisturbed soil in order to have a clear and concise perspective of the soil where work will be done and to conclude the present study.
leitura de “Pierre Menard, autor del Quijote”, de Jorge Luis Borges, sob a perspectiva barthesiana da fruição
Authors: Pacheco Raysa Barbosa Corrêa Lima
Published: August 2022

Em O prazer do texto (1973), Roland Barthes propõe uma reflexão em torno dos textos de prazer, que seriam aqueles que estão ligados a uma prática confortável de leitura, e os textos de fruição, que fazem vacilar as bases históricas, culturais e psicológicas do leitor e o fazem entrar em crise com a própria linguagem. Nesse sentido, o objetivo deste trabalho reside em discutir as particularidades dos textos de fruição a partir da análise do conto “Pierre Menard, autor del Quijote”, do escritor argentino Jorge Luis Borges, cuja estrutura pode ser facilmente confundida com a de um ensaio por um leitor mais ingênuo. Para tanto, o aporte teórico utilizado consiste, além na obra barthesiana, nas contribuições de críticos que se debruçam sobre a obra de Borges, como Alcaraz (2005), Barbosa (2001), Moreira (2012) e Piglia (2001). Dessa forma, por meio da análise do conto, é perceptível a ironia de Borges ao sugerir o possível caráter ficcional de um ensaio através problematização das fronteiras entre ficção e realidade. O argentino também conta com a figura de um leitor mais desatento, que se perde entre as diversas pistas deixadas ao longo do texto que apontam para seu caráter fictício.
Palavras-chave: Roland Barthes; Jorge Luis Borges; fruição [jouissance]; literatura latino-americana; conto.
Leveraging Data Communities to Advance Open Science: Findings from an Incubation Workshop Series
Authors: Ruediger Dylan , MacDougall Ruby , Cooper Danielle , Carlson Jake , Herndon Joel , Johnston Lisa
Published: August 2022

Several recent studies have indicated that large numbers of researchers in many STEM fields now accept the value of openly sharing research data. Yet, the actual practice of sharing data—especially in forms that comply with FAIR principles—remains a challenge for many researchers to integrate into their workflows and prioritize among the demands on their time. However, sustained funding from federal agencies in the United States and important initiatives in other countries are creating a growing infrastructure for open sharing of research data. In the US context, the most visible fruits of these efforts are the decentralized network of repositories that have become available to researchers in many fields and are now a vital infrastructure for data sharing across many fields.
Short-Term Changes in Youth Physical Activity Behaviors and Attitudes: The Influence of Summer Camp
Authors: Agans Jennifer , Garbo Caitlin , Panter Giulia
Published: August 2022

Changes in patterns of physical activity are common across adolescence and are often associated with psychological factors such as feelings of athletic competence (Agans et al., 2017; Dawes et al., 2014). However, although physical activity preferences and beliefs about competence and abilities are important contributors to participation (Sallis et al., 2000), these factors are rarely studied over shorter time scales or in the context of specific recreational environments. We therefore assessed the extent to which summer camp experiences may contribute to changes in youth physical activity behavior and attitudes, and examined factors associated with these changes. Data were collected from 309 youth (85% white, 44% female, average age of 11.6) attending three different summer camps in the northeastern United States. Camper survey data were analyzed using multilevel regression models to account for potential camp-level differences in physical activity experiences. Our findings suggest that youth experiences with physical activity at camp are not isolated from prior physical activity behaviors and attitudes, but that even one-week camp sessions can lead to changes for some youth. Specifically, overall physical activity levels increased from pre-camp to the end of camp, but camper demographics and pre-camp physical activity behaviors and beliefs were associated with participants’ self-reported activity levels, self-perceived athletic competence, and eagerness for physical activity at the end of a week of camp. We also found that many campers reported decreases in their enjoyment of physical activities with which they had prior experience, and this was especially true for teens with the lowest levels of physical activity at camp. Finally, we found that youth who tried more new types of physical activity at camp reported decreased self-perceived competence but were more likely to have higher levels of physical activity while at camp. These results suggest that summer camps can enable youth to increase their physical activity levels and change their physical activity-related beliefs, but that recreational camp programs do not affect all youth similarly. Camp staff should therefore be attentive to campers’ prior experiences, and seek to tailor their programs to better support the physical activity behaviors and attitudes of all campers.
Transformation of Islamic education curriculum development policy in the national education system
Authors: Akrim A. , Setiawan Hasrian Rudi , Selamat Selamat , Ginting Nurman
Published: August 2022

The most essential tool in any education system and for any learning process is the educational curriculum. Curriculum orientation is used as a reference to the direction of studies in learning outcomes. In the presence of western-based models in the development of educational techniques, students in Islamic universities are found to be aloof from their religious and cultural norms as they graduate from educational institutions. This paper aims to describe the transformation of Islamic Education in national education programs and curricula. For the purpose of this study, we have taken Islamic pedagogy and research methodology as well as cultural reinvigoration as the independent variable. Whereas the development of national education system along the Islamic model is the dependent variable. State organized curriculum is deemed as the mediator, which affects the later and is affected by the presence of former. Data was collected via questionnaires from a total of 550 respondents where the respondents chosen were experts in curriculum development and Islamic education. The data collected was analyzed using the SPSS and Smart PLS. The results illustrate that with cultural reinvigoration and development of Islamic pedagogy, not only the development of the curriculum will be facilitated in Indonesia, but its implementation will also be expedited.

Keywords: Curriculum, Islamic, education, pedagogy, culture, national
Assertiveness as the predictor of university students’ academic achievement
Authors: Kalzhanova Anar , Kalzhanova Dana , Murzina Saule , Nurmukhanbetova Nurgul , Naviy Liza , Yermentayeva Ardakh
Published: August 2022

The purpose of this research is to evaluate the relationship between the academic success of university students and their assertiveness levels with student opinions. Descriptive analysis, one of the qualitative research methods, was used in the research. The study group of the research consists of 40 university students studying at various universities in Kazakhstan in the 2021–2022 academic year. The data of the study were collected with a semi-structured interview form developed by the researchers. As a result of the research, the vast majority of university students stated that their academic achievement and assertiveness levels are at a moderate level. In addition, the majority of university students participating in the research stated that there is a significant relationship between the level of assertiveness and the level of academic achievement. The majority of students stated that as the level of assertiveness increases, academic success will increase. In line with the results obtained from the research, it has become necessary to add courses related to assertiveness to the curriculum of the education given at universities to improve the assertiveness levels of university students.

Keywords: Assertiveness, academic achievement, university students;
Supporting children with special educational needs as a socio-pedagogical problem
Authors: Zhansulu Sagatbekkyzy , Batima Tazhigulova , Temirov Kuanysh , Shalgynbayeva Kadisha , Shamurat Orazov , Mukhamedzhanov Bakhytzhan
Published: August 2022

The purpose of this research is to determine the professional competencies of primary schoolteachers in order to support inclusion students with special education needs from a socio-pedagogical point of view. In this study, professional competencies of primary schoolteachers were evaluated by using the survey model, which is one of the quantitative research methods, in order to support the inclusion students with special education needs from a socio-pedagogical point of view. The research was conducted with 320 primary schoolteachers who continued their educational activities in the 2021–2022 academic year in various primary schools in Almaty, Kazakhstan. The research data were collected with the teacher professional competencies scale for inclusive students with special education needs developed by the researcher. As a result of the research, it has been determined that the professional competencies of primary schoolteachers for mainstreaming students with special education needs are moderate in the sub-dimensions of teaching methods and techniques, diagnosis and evaluation, cooperation and socialisation. In addition, it has been determined that the general average of the professional competencies of primary schoolteachers for inclusive students with special education needs is at a moderate level. It has been determined that the professional competencies of the primary schoolteachers participating in the research for inclusive students with special education needs do not differ according to the gender variable. It has been determined that the professional competencies of primary schoolteachers for inclusive students with special education needs show a significant difference according to their education status for inclusive students. It has been determined that the significant difference in terms of primary schoolteachers’ education to inclusive students is in favour of the educators.

 

Keywords: Special education, inclusive education, teacher competencies;
Advances in seed priming techniques
Authors:   Incotec Europe, The Netherlands, Bruggink Henry
Published: August 2022

Seed priming is a technique involving seed hydration and drying which aims to increase germination speed and to synchronize germination to ensure a more uniform crop stand and yield. This chapter focusses on recent developments in priming from the point of view of the seed industry. It assesses the strengths and weaknesses on new techniques compared to established priming techniques: drum, osmotic and solid matrix priming.
THE LOCALIZATION OF CD8-POSITIVE CELLS OF THE LYMPH NODES IN DIFFERENT TIMES AFTER THE INJECTION OF THE ALLOGENIC BONE MARROW
Authors: Romanov Vitaly O. , Lyubovtseva Lyubov' A. , Vorob'yova Ol'ga V. , Romanova Lyubov' P.
Published: August 2022

The immune system plays an important role in the formation of an adequate immune response during transplantation of allogeneic bone marrow. The aim of the study was to study the localization of CD8-positive cells in the lymph nodes at the early stages after the venous injection of a suspension of allogeneic bone marrow cells. The experiments were carried out on 50 outbred male rats. The animals were divided into three groups: group 1 - intact rats (n=10), group 2 - control animals (n=10), which were injected 3 ml of 0,85% natrium chloride solution; 3rd group - experimental rats (n=30), which were injected into the tail vein with one ml of a cell suspension of bone marrow extracted from the epiphysis of the femur of another rat and mixed with 2 ml of 0,85% natrium chloride solution. Animals were withdrawn from the experiment after 40, 120 and 240 minutes from the start of the experiment. After 40 minutes from the start of allogeneic bone marrow transplantation in the lymph nodes, CD8+ lymphocytes are detected in the expanded subcapsular, paracortical zones, near the vessels, in the cortical sinuses, and in the medulla. After 120 minutes from the start of transplantation, the number of lymphoid nodules with different numbers of CD8+ lymphocytes and different intensity of their color increases. The reproduction of CD8+-lymphocytes occurs under the capsule in the cortex of some lymphoid nodules, the vessels dilate, fragmentation of the medulla occurs with the appearance of new groups of CD8+-lymphocytes. After 240 minutes from the start of allogeneic bone marrow injection, a small number of CD8+ lymphocytes are detected in the subcapsular zone, in the peripheral layer of single lymphoid nodules, along the lymphatic and blood vessels, and as groups in the medulla. There is a fatty degeneration of the medulla of the lymph nodes. Thus, based on the localization and reproduction of CD8+ lymphocytes in the lymph nodes, it can be assumed that the recognition of allogeneic bone marrow antigens occurs in the subcapsular zone, the peripheral layer of lymphoid nodules, and areas of the medulla.
THE MORPHOMETRIC CHARACTERISTICS OF THE LEFT ATRIAL APPENDAGE IN HEART OF ADULT HUMAN
Authors: Gaponov Anton A. , Yakimov Andrey A.
Published: August 2022

The aim of the study was a morphometric characteristic of the left atrial appendage of a conditionally normal adult heart with a different number of lobes of this structure. We studied 52 preparations of the heart weighing 250-400 grams of people aged 36-89 who died from causes not related to diseases of the heart, blood vessels, muscle or connective tissue. The left atrium of the heart was filled with liquid silicone with a hardener. During the silicone hardening, the preparations were suspended so that the its lower wall was raised above the table plane by 10–15º. After the silicone hardened, the overall dimensions of the heart, left atrial appendage, and its lobes were measured with a caliper. The number of lobes and edges of the atrial appendage was determined. Nonparametric tests were used for statistical analysis of differences. It was established that in 71,1% of cases the left atrial appendages had two lobes, in 21,2% three lobes, in 7,7% it was single-lobed. The proximal lobes of the three-lobed left atrial appendages could be short or long. Three-lobed left atrial appendages were longer than two-lobed ones (U=106,5; p=0,018). The values of the width of the left atrial appendage of the heart did not depend on the number of its lobes (H=0,95; p=0,62). In 98,1% of cases, the atrial appendage had an edge directed towards the pulmonary artery, in 96,1% of cases they had an edge facing the diaphragmatic surface of the heart, in 94,2% of the preparations there was an edge facing the apex of the heart, in 25% of cases there was a left atrial edge directed back and up. Most often, in 65,4% of cases, the left appendage of the heart had three edges: pulmonary, apical and diaphragmatic. Thus, it was established that the left atrial appendage of the heart is characterized by a pronounced anatomical variability in shape. A different number of lobes, edges of the left atrial appendage, a different combination of these features and the ratio of the length and width of the lobes of the atrial appendage and the atrial appendage as a whole are proposed to be considered as criteria for distinguishing anatomical types and structural variants of the human left atrial appendage.
NEURONAL SYNCYTIA IN THE ENTERIC NERVOUS SYSTEM OF THE FELIS CATUS
Authors: Markov Igor I. , Markova Valeriya I. , Sotnikov Oleg S. , Babaeva Ramilya Emil qisi , Lukashin Vladislav G.
Published: August 2022

Syncytial connections between neurites were found using electron microscopy in the nervous system of cats, young pigs, as well as in the culture of mollusk ganglia cells. The possibility of detecting neural syncytia using the method of the unmasking of digital images of arborizations of interneuronal connections in the nervous tissue of the brain was established, but this method was not used to study of the enteric nervous system. The aim of the study was to analyze the submucosal and intermuscular autonomic nerve plexuses of the intestine of the domestic cat (Felis catus) by method of the unmasking of digital images. The material for the study was preparations of the small and large intestines. All manipulations with animals were carried out in compliance with Directive 2010/63/EU of the European Parliament and of the Council of the European Union on the protection of animals used for scientific aims. The experiments were carried out on mature outbred cats (n=45). To obtain preparations, the intestinal vessels of experimental animals were sequentially perfused with solutions of barium hydroxide, then silver nitrate, and hydroquinone. After perfusion, intestinal preparations were taken and fixed. The obtained histological preparations (including ultramicroscopic ones) were studied by the method of unmasking of digital images (of the downscaling of the image resolution). As a result of the study, numerous distant syncytial anastomoses connecting the bodies of neurocytes of all types of Dogiel cells were revealed for the first time, and their properties were established. Widespread multiple morphological mono- and polyvalent ring syncytial structures were found. Their supposed function is the opposite direction of electric and axoplasmic flow. An in vivo feature of the reflex syncytial apparatus of the enteric nervous system is the formation of multi-tiered closed loop-like contacts of nerve fibers and type II Dogiel cells with pronounced local and diffuse receptor branches. Thus, a characteristic feature of the enteric nervous system is the presence of multicellular connections of neurocytes in the form of a network of distant syncytial anastomoses. These anastomoses are real proof of the reticular principle of the structural organization of the autonomic plexuses of the enteric nervous system and the reticular concept in general.
PROFESSOR IGOR MARKOV – TO 80 YEARS ANNIVERSARY
Authors: Lysov LNikolay A. , Khayrullin Radik M.
Published: August 2022

Congratulatory article dedicated to the 80th Anniversary of the Doctor of Medical Sciences, Consultant of the Research Laboratory of Problems of the Morphology, Advisor of the Rector of the Private Medical University REAVIZ, Deputy Editor-in-Chief of the Russian national anatomical scientific journal «Morfologicheskie Vedomosti - Morphological Newsletter», Professor Igor I. Markov.
AGED DYNAMICS OF THE ANATOMОMETRY PARAMETERS OF THE PROSTATE GLAND AND ITS TOPOGRAPHY WITH BENIGN HYPERPLASIA ACCORDING TO MAGNETIC RESONANCE TOMOGRAPHY
Authors: Baryshnikov Ivan A.
Published: August 2022

The study and analysis of intravital magnetic resonance imaging is relevant both from a theoretical and practical point of view as a supplement to the available data on the clinical anatomy of the male pelvis for radiologists and urologists. Purpose of the study: to obtain new data on intravital anatomy and topography of the prostate gland in conditions of its benign hyperplasia according to magnetic resonance imaging. The data of magnetic resonance imaging of 195 urological patients were studied and interpreted, including 100 patients with signs of benign prostatic hyperplasia and 95 patients without it. Linear dimensions were assessed in three orthogonal planes - sagittal, frontal and transverse, the volume of the prostate gland, the distance from it to the bone structures of the pelvis, the area of ​​​​adjacency of the prostate gland to the bladder and the extent of adherence to the rectum. It was revealed that the frequency of patients with benign prostatic hyperplasia increases with age, in the 1st period of adulthood it is 18,2%, in the 2nd mature age period – 46,7%, in the elderly – 81,8%, in old age - 100%. The size and volume of the prostate in such patients also increase with age: in the 1st period of adulthood, the average prostate volume is 30,1 cm3 versus 23,1 cm3 in other patients, in the 2nd period - 41 cm3 versus 26,0 cm3, in the elderly – 58,1 cm3 versus 23,3 cm3 (respectively), in old age – 108,6 cm3. There is a decrease in the distance from the prostate to the bone structures of the pelvis with age, a closer location of its base to the plane of the entrance to the small pelvis. With benign prostatic hyperplasia, there is also an increase in the area of ​​​​adjacency of the prostate gland to the bladder and the length of adherence to the rectum. The presented results can be used in the diagnosis of benign prostatic hyperplasia in males of the first and second age groups.
TO THE MEMORY OF PROFESSOR DINA GORDON – TO 100 YEARS ANNIVERSARY
Authors: Efremova Valentina S. , Golubtsova Natal'ya N. , Gordova Valentina S.
Published: August 2022

Memorial article dedicated to the 100th Anniversary of the Doctor of Medical Sciences, the Corresponding Member of Russian Academy of Natural Sciences, the Honored Scientist of the Chuvash Republic, Professor Dina S. Gordon
THE ANATOMICAL GROUNDING OF ISOLATED LOBAR PORTOCAVAL PERFUSION OF THE LIVER
Authors: Tyagun Valery S. , Gaivoronsky Ivan V. , Surov Dmitry A. , Rybakov Aleksandr S. , Il'ina Viktoriya A. , Anokhin Dmitry Yu.
Published: August 2022

With the development of perfusion technologies in oncology, the problem of finding the optimal ways to perfusates injections has become fundamental, and in this regard, the study of the features of liver angioarchitectonics in normal and pathological conditions does not lose its relevance. The aim of our study was to study the features of the portal architectonics of the liver in relation to the possibility of its isolated lobar perfusion. Using the methods of color perfusion (n=50), separate injections of a hardening mass and the preparation of corrosive preparations (n=3), microfocus angiography (n=8), transparenchymal sections and light microscopy (n=5), 53 liver preparations explanted from non-embalmed corpses of people who died from diseases not directly related to the liver pathology. As a result of the study, it was found that the border of the zones of blood supply by the lobar branches of the portal vein after the introduction of dyes passes along the lateral border of the fourth segment of the liver in the projection of the main trunk of the middle hepatic vein, and not along the falciform ligament. According to the distribution criterion of the portal vein branches, the anatomical and surgical concepts of the interlobar boundaries of the liver do not coincide. Macro- and microscopically visible interlobar intraorgan portal anastomoses are normally absent, which indicates the relative isolation of the lobar portal blood flow of the liver. The intrahepatic bed of the proper hepatic artery has a rich architectonics in the surface layers of the parenchyma and abundantly supplies the liver capsule with blood. When performing transparenchymal sections, the boundaries of the blood supply zones of the lobar branches of the portal vein coincided with the interlobar boundaries in all cases of observation. It was also noted that the topography of the border of the blood supply zones with the lobar branches of the portal vein to match the diaphragmatic surface of the liver and in its parenchyma. Thus, it seems possible to reliably determine the indicated boundary by the pattern on the surface of the liver preparation. The relative autonomy of the channels of the lobar portal vein branches can be used to develop techniques for vascular isolation of the lobar portal blood flow in the liver to assess its selective isolated perfusion.
On the emergence of [n] in the derivation of nasal-final words in brazilian portuguese
Authors: Schwindt Luiz Carlos , Abaurre Maria Bernadete
Published: August 2022

This article deals with the correspondence between words closed by [n] followed by a vowel-initial suffix (e.g., ca[n]al 'channel', tupi[n]ismo 'Tupinism') and their respective bases in Brazilian Portuguese (e.g., cano 'pipe', tupi 'Tupi'). The data sources for the analysis are the Corpus Brasileiro, representing the lexicon in use, and a pseudoword test, representing the potential lexicon. Two representational hypotheses are contrasted in the analysis of this correspondence: the abstract approach, in which the bases are assumed to be closed by a VN structure, and the concrete approach, according to which [n] is part of the base or a product of epenthesis. The selection of the pattern VN was assumed as the response variable in the statistical analysis. According to the logistic regression test, final-stress bases and mid and high vowels preceding [n]Vsuffix are predictors of the VN pattern for the two samples. In the potential lexicon, the interaction between high frequency lexical strings and the suffixes -icV and -ismV as well as the random variables 'participant' and 'pseudoword' also contribute to the selection of the base pattern VN. The results confirm the plausibility of the abstract approach in the analysis of [n]Vsuffix forms in Brazilian Portuguese.
Association of Serum Complement Components (C3 and C4) with Disease Activity in Yemeni Bronchial Asthmatic Patients
Authors: Mahmoud Al-Azab  , Mohammed Safi  , Elina Idiiatullina  , Mohammed Al Shaikh  , Abdulbaki Al-Robasi  , Mohammed Awsh  , Salah Adlat  , Khaled Al-Moyed
Published: August 2022

Objective: To assess the role of the complement components (C3 and C4) in the pathogenesis and severity of bronchial asthma (BA) among Yemeni patients.

Methods: This cross-sectional, clinic-based study was conducted in Sana’a city, Yemen in the period from March to June 2012. It included 100 BA patients, where demographic and clinical data were collected using a pre-designed, structured questionnaire. Blood samples then collected by venipuncture, and sera were then separated and tested for the levels of C3 and C4 by immunoturbidimetry assay. Data were analyzed using suitable statistical tests using IBM SPSS Statistics, version

Results: Of 100 patients, 53% were males and 29% were older than 40 years. The mean age of patients was 34.7± 17.5 years (range: 6–80). The majority of patients had active asthma (81.0%) and experienced asthma for more than two years (66.0%). Dyspnea (81.0%) and cough (65.0%) were the most frequent clinical features, while edema (11.0%) was the least frequent clinical feature among asthmatic patients. The mean level of serum C3 among BA patients was elevated (127.9 ± 21.3 mg/dL) and was significantly higher among females, patients aged 40 years or older and those with active BA, but there was no statistically significant difference with respect to the duration of asthma. In contrast, the mean level of serum C4 was normal (27.6 ± 8.8 mg/dL) but was significantly higher among patients aged 40 years or older and those having asthma for more than two years. Wheezing was significantly associated with the mean level of serum C3 among BA patients. Similarly, the mean level of serum C4 was significantly higher among patients having cough.

Conclusions: The majority of Yemeni patients with BA have elevated levels of serum C3, which can be significantly higher in females, patients older than 40 years and those with active asthma. On the other hand, the levels of serum C4 are normal among the majority of Yemeni patients with BA, but these can be elevated among those with severe clinical features or long-term asthma.

Keywords: Active asthma, Bronchial asthma, Complement, C3, C4, Yemen
Transesophageal Echocardiograph Findings in Patients with Cardiovascular Disorders at Al-Thawrah General Hospital, Sana’a, Yemen
Authors: Al-Jaber Noor-Aldeen , Thabet Ahmed A. K. , Al-Hakeem Manal , Al-Arashi Manae , Sharaf Abdulhakim , Al-Safadi Essam
Published: August 2022

ABSTRACT Objectives: To determine the frequency distribution of different cardiovascular disorders and to describe their associated morphological abnormalities by transesophageal echocardiography among patients referred to the Transesophageal Echocardiography Laboratory of Al-Thawrah General Hospital, Sana’a, in the period 2009– 2011. Methods: This was a retrospective descriptive study of 856 patients with suspected cardiovascular disorders and referred for transesophageal echocardiography over a two-year period. Data about patients’ sex, their refer- ral site and transesophageal echocardiography findings were collected and analyzed according to the type of cardiovascular disorders, valvular affections and lesions, complications and recommended treatments. Results: Of the 856 patients, 63.4% were females and 36.6% were males. The majority of patients diagnosed by transesophageal echocardiography (82.4%) were referred from outpatient departments. Rheumatic heart dis- ease was the most frequent cardiovascular disorder (87.1%), followed by tricuspid valve lesions (62.8%), of which 54% (329/606) were tricuspid regurgitation and 62.6% (114/182) were aortic valve regurgitation. Re- garding the type of valvular lesions detected, mitral valve disease was the most frequent, being found in 69.2% (214/309) of patients. Regarding the severity of valvular lesions, 73.1% (19/26) of mitral valve stenosis cases were severe while 83.3% (35/62) of aortic stenosis cases were mild. Moderate pulmonary hypertension was seen mostly secondary to rheumatic heart disease. The majority of cardiovascular disorder patients (33.6%; 284/844) were recommended for balloon mitral valvotomy. Mitral valve surgery was the most frequently per- formed surgical intervention for affected valves of patients with cardiovascular disorders; being used for the treatment of 31.4% (80/255) of valvular lesions. Conclusions: Transesophageal echocardiography revealed that rheumatic heart disease is the most frequent cardiovascular disorder among Yemeni patients and poses a major health problem. In addition, a high propor- tion of patients with cardiovascular disorders have valvular lesions of the mild degree that require surgical in- tervention.