bluuebunny/crossref_metadata_2025 huggingface dataset:
Análises de dos escenarios de cambio climático para el 2050 en el Estado de Tabasco, México
Authors: Navarro Lorenzo Armando Aceves , Hernández Benigno Rivera , López José Francisco Juárez , Rivera Agrícola Arrieta
Published: October 2022

Este estudio presenta un análisis de dos escenarios extremos de emisiones de gases de efecto invernadero (el mejor y el peor escenario), y su efecto sobre los incrementos en la temperatura media diaria anual y la precipitación total anual en el estado de Tabasco para el año 2050. Para ello se utilizaron mapas regionales resultantes de ensamblar 23 diferentes modelos de Circulación General de la Atmósfera y Océano Acoplado (MCGAyOA). El análisis de éstos mapas muestra que para la mitad del siglo XXI la temperatura media diaria anual en el estado de Tabasco se puede incrementar entre 1.1 ºC hasta 1.6 ºC para el mejor y el peor escenario respectivamente. En lo que respecta a la precipitación total anual, ambos escenarios muestran que ésta se mantendrá prácticamente sin cambio en la mayor parte del estado; excepto en pequeñas áreas en la subregión de la Chontalpa, donde se esperaría una reducción promedio entre el 5 % y el 7.5 %. Con base en el conocimiento ecofisiológico de cultivos y animales de granja se hacen algunos señalamientos generales de las posibles implicaciones que tendrían esos escenarios en las actividades agropecuarias en el estado de Tabasco.
Chitons (mollusca: polyplacophora: chitonoidea & lepidopleurida) from the coastal waters of Santa Catarina state/ SC, central southern Brazil region: an preliminary review of their knowledge
Authors: Agudo-Padrón Aisur Ignacio
Published: October 2022

Um total de doze (12) espécies válidas, incluídas em 5 Gêneros, 4 Famílias e 2 Ordens, constituem o novo inventário revisado e atualizado dos moluscos poliplacóforos (POLYPLACOPHORA) que ocorrem no território marinho do Estado de Santa Catarina/ SC, região Centro-Sul do Brasil, incluindo onze (11) formas de águas litorâneas rasas e uma (1) de águas profundas, registradas todas para 17 localidades geográficas costeiras.
APAKAH PEMAHAMAN SISTEM INFORMASI AKUNTASI PENENTU KUALITAS LAPORAN KEUANGAN ?
Authors: M Nabhan Shauman Velayadi  , Gunarto Muji
Published: October 2022

The purpose of this study is to obtain empirical evidence whether understanding and utilization of accounting information systems affect the quality of financial reporting. Multiple linear regression analysis was used as the method. 41 employees from 10 BAZNAS agencies throughout the province of South Sumatra were sampled in this study. The results showed that the understanding of the accounting information system was not a determinant of the quality of the financial statements produced by BAZNAS, while the use of the accounting information system had an impact on the quality of the financial statements of BAZNAS.

Abstrak

Tujuan penelitian ini adalah untuk memeroleh bukti empiris apakah pemahaman dan pemanfaatan sistem informasi akuntansi berpengaruh terhadap kualitas pelaporan keuangan. Analisis regresi linier berganda digunakan sebagai metode. 41 pegawai dari 10 instansi BAZNAS se-Provinsi Sumatera Selatan menjadi sampel pada penelitian ini. Hasil penelitian menunjukkan pemahaman sistem informasi akuntansi bukan penentu kualitas laporan keuangan yang dihasilkan BAZNAS, sedangkan pemanfaatan sistem informasi akuntansi memiliki dampak terhadap kualitas laporan keuangan BAZNAS.
Efektivitas Pembelajaran Matematika Menggunakan Multimedia pada Materi Kerucut
Authors: Usman Prasetyo , Yahya Lailany , Bito Nursiya , Takaendengan Bertu Rianto
Published: October 2022

This is descriptive research which aims to describe the effectiveness of learning by using multimedia in the cone materials of class IX MTs Al-Khairat Kwandang in the academic year 2019/2020 in terms of (1) the ability of teachers to manage learning, (2) positive student responses to learning, and (3) student learning outcomes test. Based on the analysis and discussion results, it can be concluded that learning mathematics using multimedia on cone material is effective. This is indicated by the ability of teachers to manage to learn has been categorized as very good, student responses in every aspect during the learning process are categorized as very positive, and the completeness of learning outcomes has reached 80% classically.
Hubungan Gaya Kognitif Siswa Dengan Kemampuan Pemecahan Masalah Matematika
Authors: Patingki Adrian , Mohidin Abdul Djabar , Resmawan Resmawan
Published: October 2022

This article discusses the relationship between students' cognitive style and mathematical problem-solving abilities in the number pattern material carried out at SMP Negeri 1 Botupingge in the odd semester of the 2021/2022 academic year. The research method used is a survey method with a correlational approach, with a questionnaire instrument to determine students' cognitive style and problem-solving tests to measure students' mathematical problem-solving abilities. The results showed that the correlation coefficient between students' cognitive styles and mathematical problem-solving abilities was 0.60, which means that there is a relationship between students' cognitive styles and mathematical problem-solving abilities at a high level. The coefficient of determination of 0.36 indicates that 36% of the contribution of cognitive style to the improvement of mathematical problem-solving abilities, and the remaining 64% is determined by other factors.
Efektivitas Multimedia Interaktif Berbasis Smartphone untuk Pembelajaran Matematika dengan Tatap Muka Terbatas
Authors: Muzakkir Muhamad Ansar , Pomalato Sarson W. Dj. , Katili Muhammad Rifai
Published: October 2022

This research is a type of research and development that aims to develop and test the effectiveness of using smartphone-based interactive multimedia products using smart apps creator (SAC), which was developed through the development of the ADDIE model (Analyze, Design, Development, Implementation, Evaluation). The research subjects were teachers and students of class X IPA 1 SMAN 4 Gorontalo, as many as 28 students. The product is considered suitable for use based on the validity criteria from the assessment of the material, media, and learning design experts. The product is also considered effective based on the learning outcomes of students with a one-group pretest-posttest experimental design. From the results of statistical analysis with the paired sample T-test where the value of  is 12,560 and the value of  is 2,05183, then . So, the hypothesis that there are differences in learning outcomes before using the product and after using the multimedia product is accepted. Then the effectiveness category is determined through the gain score test with the average gain score of 0.62 with a moderate classification and for the average percentage gain score of 62.25% with a fairly effective category.
Pengembangan Instrumen Tes PLSV Berdasarkan Indikator Berpikir Kritis dan Pemecahan Masalah
Authors: Agustiani Nur , Setiani Ana , Lukman Hamidah Suryani
Published: October 2022

This study aims to develop a test instrument of linear equation in one variable based on critical thinking and problem-solving indicators, which validate by experts. The type of this research is R D research with the ADDIE model. This study is limited only to Analysis (Analysis), Design (Design), and Development (Development). The instrument used in this study was an expert validation sheet. This study involved five mathematics lecturers as validators. The expert validation data were analyzed using V'Aiken. The results of the study indicate that the average value of the V'Aiken index for the feasibility of the content aspect is 0.92, with very high criteria. The feasibility of the linguistic aspect is 0.92 with very high criteria; conformity with the critical thinking indicator is very high with a value of 0.90 for questions number 1, 2, and 4, and for item number 3 is 0.91. The suitability of the solution indicator is very high, with a value of 0.89 for questions number 1, 2, and 4, and for item number 3, it is 0.90. Overall, the test instrument developed is very feasible to use.
Meningkatkan Hasil Belajar Siswa Melalui Model Pembelajaran Kooperatif Tipe Team Assisted Individualization
Authors: Taha Riskimar , Badu Syamsu Qamar , Arsyad Arfan
Published: October 2022

This study aims to improve student learning outcomes by using the Team Assisted Individualization (TAI) cooperative learning model in statistical material in class X ATPH-1 SMK Gotong Royong. This type of research is Classroom Action Research (CAR). The research design used is the design of Kemmis and Mc. Taggart. The data collected in each research activity were analyzed descriptively using the percentage technique. The data includes student activity data, student learning outcomes, and teaching activities in implementing the TAI-type cooperative learning model. The results showed that there was an increase in student activity in learning with a percentage of 87.5%, teacher activity also increased by a percentage of 89.46% and student learning outcomes also experienced an increase which scored above 75 as many as 15 people with an average percentage of 85 % while those who scored below 75 or incomplete were 2 people with an average percentage of 15%. So in the first cycle of student activity and the average student learning outcomes have met the indicators of the success of the action.
Meningkatkan Kemampuan Pemahaman Konsep Matematika Melalui Model Pembelajaran Realistic Mathematics Education Menggunakan Alat Peraga Kubus dan Balok
Authors: Hubulo Nurain A , Hulukati Evi , Uno Hamzah B. , Damayanti Taulia
Published: October 2022

The purpose of this study was to improve the understanding of mathematical concepts of students through Realistic Mathematics Education. Learning model assisted by teaching aids on cube and block material. This research is classroom action research. The research subjects were class VIIIA students for the 2021/2022 academic year with 26 people. The techniques used in data collection are observation and tests. The data analysis technique in this study is data analysis of teacher observations, student observations and tests of understanding mathematical concepts. The research procedure includes planning, implementation, observation, and reflection. The study consisted of 2 cycles. Realistic Mathematics Education learning assisted by teaching aids on cube and block material, as long as this research has been running according to the learning implementation plan, has succeeded in creating a conducive learning situation, and increasing students' understanding of concepts. The results showed that the ability to understand mathematical concepts in the first cycle was 50% less criteria, and in the second cycle, 81% good criteria. The results of observations of teachers' teaching skills when managing learning has increased. In the first cycle, it reached 69.12% good criteria, while the second cycle reached 85.28% excellent criteria. The results of observations of student learning activities have increased. From the first cycle, the percentage is 63.75 good criteria, while the second cycle is 83.75% excellent criteria.
Peranan Sarana Masjid Pada Pembentukan Akhlak Siswa Di Mts Darul Ma’ruf Pasawahan Kabupaten Purwakarta
Authors: Nur A. S Adinda , Isty Nuraltsar  , Imam Tabroni
Published: October 2022

Penelitian ini bertujuan untuk mendeskripsikan peranan sarana masjid pada pembentukan akhlak siswa di Mts Darul Ma’arif Pesawahan Kabupaten Purwakarta. Metode yang peneliti gunakan adalah dengan pendekatan Deskriptif Kualitatif. Analisa Deskriptif Kualitatif terdiri atas 3 (tiga) alur kegiatan yang berlangsung secara bersamaan yaitu reduksi data, penyajian data dan penarikan kesimpulan. Tujuan dari teknik analisa yang digunakan adalah sebagai acuan penulisan hasil penelitian yang akan mempermudah dalam memahami deskripsi yang peneliti sajikan sebagai hasil akhir dari penelitian sehingga akan memberikan pemahaman yang semestinya. Sedangkan teknik pengumpulan datanya yaitu dengan menggunakan wawancara, observasi dan dokumentasi. Hasil perolehan dari penelitian ini telah menunjukkan bahwa pembentukan masjid ini digunakan sebagai sorogan, bandungan atau balagan. Biasanya juga dipakai untuk acara santri. Siswa atau santri sudah ditentukan jadwal dari bangun tidur dan sebelum tidur. Tentu adanya shalat berjamaah dan jika tidak dilakukan akan mendapatkan denda. Maka cara mengawali pembentukan akhlak adalah dengan shalat berjamaah sehingga yang akan dihasilkan akan lebih mudah untuk kedepannya. Dengan adanya pengumuman terlebih dahulu ajakan sebelum melaksanakan shalat lima waktu. Upaya yang dilakukan diantaranya, adanya jadwal adzan, jadwal imam, dan jadwal piket. Tidak lupa murajaah setelah shalat lima waktu. Faktor pendukung tersedia kebutuhan untuk memenuhi pembentukan akhlak yang dibutuhkan santri dan faktor penghambatnya adalah kurangnya ketersediaan air, atap genteng masjid yang sedikit bocor.
Analysis of the Factors Affecting the Nutritional Status and Health of the Elderly During the Covid-19 Pandemic
Authors: Anita  , Nurlaili Ramli
Published: October 2022

Nutritional problems are problems that may occur in the elderly which are closely related to food intake and body metabolism and the factors that influence them. Malnutrition represents a potential threat to the health of the elderly. This systematic review wants to learn more about the factors that affect the nutritional status of the elderly and the health of the elderly during the covid pandemic. This study is a systematic review using online databases, namely Scholar, ScienceDirect, ProQuest, and EBSCO. The keywords used are Nutritional Status, Health Elderly, and Covid-19 Pandemic. The selection process used the PRISMA protocol so that 15 articles were obtained that met the inclusion criteria. From the results of a review of several articles, it is known There are associations between emotional support, self-esteem support, appetite, carbohydrate intake, and health and nutritional status in older adults. There is a relationship between factors affecting nutritional needs and nutritional status in older adults, including physical activity, depression and mental status, medication, disease, and biological decline. The indirect causes of nutritional problems in the elderly are environmental factors, income and the availability of information, while the quality of living environment includes information related to living environment, income and nutritional status of the elderly and the quality of living environment. Factors that influence the nutritional status of older adults are food intake and disease, but are also influenced by physical activity and exercise habits.
The Challenges of Early Initiation of Breastfeeding in Post Sectio Caesarea Patients
Authors: Anita  , Lia Lajuna  , Nurlaili Ramli
Published: October 2022

The implementation of initiation of breastfeeding has physiological benefits to help the contraction of the mother's uterus and provide benefits for the survival of the baby. Success and failure in the implementation of initiation of breastfeeding is influenced by many challenges. This systematic review aims to analyze the challenges of implementing Early Breastfeeding Initiation (IMD) in post-SC  patients. This study is a systematic review using online databases, namely Scholar, ScienceDirect, ProQuest, and EBSCO. The keywords used are Early Initiation of Breastfeeding, Post Sectio Caesarea, Patients.. The selection process used the PRISMA protocol so that 15 articles were obtained that met the inclusion criteria. The findings of the review indicated that there are still challenges to early initiation of breastfeeding, such as the development of dedicated health workers, lack of training for early initiation of breastfeeding after implementing SC, discomfort, little support from health workers, and delayed breastfeeding provided by influencers Practice room and advice on infant formula and infant formula from health workers.
Analysis of Factors Affecting Community View on Covid-19 Vaccination
Authors: Manaf Salmiani abdul , Irnawati
Published: October 2022

Indonesia is a country of law and has issued policies related to vaccination during the covid-19 pandemic, as in the Regulation of the Minister of Health Number 84 of 2020 (Concerning the 2019 War Against Corona Virus Disease (Covid-19) in the context of implementing vaccinations) as described in) pandemic.Judging from the prevalence of Covid-19 cases, the current need is to develop a safe and effective COVID-19 vaccine that can trigger an appropriate immune response to stop the COVID-19 pandemic. Objective: The purpose of this Systematic Review is to analyze the influence of public opinion on the covid-19 vaccination. Methods: Database searches include Google Scholar, Science Direct, and Pubmed with keywords. The keywords used are views, perceptions, covid 19 vaccination, Implementation of Covid-19 Vaccination, Vaccine Effectiveness. The next stage is to select articles according to the criteria, which are published in 2019-2022 with the full text of 13 articles that meet the inclusion criteria. Showing public doubts about the covid 19 vaccination, which was reinforced by the slanted news about the vaccine, some said they died, or got the virus again. So it can be said that people do not understand the use of the vaccine itself. That's.  It is hoped that the government's duty is to continue to encourage and campaign about vaccination, because this way we can break the chain of virus spread. The public is asked to be patient in going through this pandemic, because it is not only Indonesia, but the whole world.
Implementation of Clean and Healthy Lifestyle Behavior with Children's Nutritional Status the During Covid-19 Pandemic
Authors: Yuniwati Cut , Fithriany
Published: October 2022

The implementation of Clean and Healthy Lifestyle  in the midst of the COVID-19 pandemic has become a serious problem in society. The application of clean and healthy living behavior in everyday life in the household can reduce the risk of disease and nutritional status in children. Achievement of optimal nutritional status can be influenced by several factors, namely direct, indirect and root causes. Direct factors consist of food consumption and infection status. Indirect factors consist of availability, food consumption patterns, hygiene, sanitation, and environmental health. The purpose of this study was to determine the Clean and Healthy Lifestyle  with Child Nutritional Status in the midst of the Covid-19 Pandemic. This study is a systematic review using online databases, namely Scholar, Sciencedirect, ProQuest, and EBSCO. The keywords used are clean and healthy living behavior, Child Nutrition Status, Covid-19 Pandemic.The selection process used the PRISMA protocol so that 15 articles were obtained that met the inclusion criteria. The findings of the review show that adopting a good, clean and healthy lifestyle affects children's nutritional status. The application of clean and healthy living habits in household arrangements is influenced by knowledge, culture, socioeconomics, beliefs, and the availability of facilities or technologies. During the Covid-19 pandemic, parents can play a role in reminding, educating, providing role models and support, advising, and emphasizing the importance of clean and healthy living.
Knowledge With The Attitude Of Acceptance Of The Covid-19 Vaccine In Tuminting Subject, Manado City
Authors: Faradilla Miftah Suranata  , Rahmat Hidayat Djalil  , Julfiani Sampurna
Published: October 2022

Coronavirus Disease 2019 (Covid-19) is an acute respiratory infection that occurs in droplets containing SARS-CoV-2 so that it enters the body and can be prevented by vaccination. Vaccines are one of the most effective and economical ways to prevent infectious diseases, especially Covid-19. The attitude of accepting the Covid-19 vaccine is a response or acceptance of information as well as a response to the response of whether the community wants to accept vaccination or not. Vaccination will be able to run well and achieve goals evenly if the entire community can accept the Covid-19 vaccination. The purpose of this study is to identify the relationship with the attitude of acceptance in society. The design of this research is descriptive analytical with a cross sectional approach. The sample of this research is the community of Tuminting Environment II Village, Manado City, totaling 40 respondents using the Accidental Sampling Technique. This research instrument was conducted using a questionnaire. Furthermore, it was analyzed by Chi-Square statistical test with a significance level of = 0.05. The results of the study showed poor knowledge 26 (65%), attitude of acceptance who received less vaccination 22 (55%) and the results of the analysis test obtained p value of 0.001. The conclusion in this study is that there is a significant relationship between knowledge and attitudes towards receiving the Covid-19 vaccine in the community of Tuminting Environment II Village, Manado City. Suggestions in this study are that it is hoped that the community can increase existing knowledge in order to deepen knowledge in order to apply a good acceptance attitude.
Motivación y desempeño docente
Authors: Quispe Bacilia , Coacalla-Castillo Carlos , Lima María , Marcilla Hector , Suarez Arturo , Condori Juan
Published: October 2022

Este libro es una adaptación de una investigación presentada a la Universidad Nacional Micaela Bastidas de Apurímac, cuyo objetivo central fue determinar el nivel de asociación de la motivación con el desempeño laboral desde la perspectiva del docente de las Instituciones Educativas Públicas del Nivel Inicial de Tamburco (Perú). El estudio fue desarrollado siguiendo el proceso de una investigación básica de nivel correlacional asociativa. Los datos de cada una de las variables fueron registrados en los cuestionarios de motivación que considero tres dimensiones (necesidad de logro, necesidad de poder y necesidad de afiliación) y desempeño docente también con tres dimensiones (Planificación de trabajo pedagógico, gestión de los procesos de enseñanza - aprendizaje y responsabilidades profesionales). Se trabajo con el total de docentes del nivel inicial de Tamburco. El tratamiento estadístico de acuerdo al diseño de investigación para la contrastación de la hipótesis seleccionada fue el coeficiente de Tau_b de Kendall, que permitió llegar a la conclusión inferencial que existe una asociación entre la motivación con el desempeño docente. Por otro lado, de manera descriptiva se concluye que 16 docentes de 29 individuos de la muestra señalan que no se preocupa en tomar consideración las necesidades de logro, poder o afiliación como fuerza motivadora, y en cuanto al desempeño docente, 23 docentes presentan actitudes y comportamientos que reflejaron que casi nunca planifican el trabajo pedagógico, ni la gestión de los procesos de enseñanza y aprendizaje es baja, 5 docentes a veces participan en sus responsabilidades profesionales y solo un docente por lo general planifica, hace gestión de los procesos pedagógicos y asume sus responsabilidades profesionales.
Percepciones sobre contaminación y actitudes ambientales
Authors: Casa-Coila Manuela-Daishy , Mamani-Jilaja Dometila , Mamani-Quispe Nelly-Edith , Mamani-Vilca Paula-Soledad , Cervantes-Alagón Sheyla , Perez-Argollo Katia
Published: October 2022

El libro fue adecuado a partir de una investigación que se presentó a la Universidad Nacional del Altiplano (UNA). El objetivo consistió en determinar la relación que existe entre las percepciones sobre la problemática de contaminación ambiental con las actitudes ambientales en estudiantes de la Facultad de Ciencias de la Educación (FCEDUC) de la UNA Puno, Perú. El método de investigación fue el enfoque cuantitativo, el tipo no experimental y el diseño fue correlacional. Para tal efecto la población fue conformada por 778 estudiantes, con una muestra intencional de 113 estudiantes. Las técnicas de recolección de datos fueron la técnica de evaluación y test de actitudes de tipo Likert, siendo los instrumentos el test de percepciones de contaminación ambiental y la escala de actitudes de Likert. El diseño estadístico que se aplicó fue el chi cuadrado (X2) para la prueba de hipótesis. Los resultados demuestran que existe relación significativa entre las variables de estudio de percepciones con las actitudes sobre problemas ambientales de acuerdo con la estadística inferencial que fue X2 = 62,534. Se pudo concluir que la problemática de contaminación ambiental es tarea de todos los ciudadanos para poner en práctica el cuidado y preservación del medio ambiente con actitudes que ayuden a no contaminar la naturaleza.
PATHOBIOME TRANSFORMATION AND FEATURES OF ENTERAL INSUFFICIENCY IN PATIENTS WITH PERITONITIS DURING THE COVID-19 PANDEMIC
Authors: Parshin Dmitry , Topchiev Mikhail , Mykhaylichenko Vyacheslav , Kupriyanov Alexandr , Alibekov Ramazan
Published: October 2022

We studied the features of acute enteral failure in patients with peritonitis in the setting of COVID-19 by studying the properties of the enteral pathobiome, biochemical, functional, pro-inflammatory and anti-apoptotic markers in diffuse peritonitis. A retrospective randomized cohort controlled study was conducted; it included 84 patients divided into two groups. Stratified randomization was used. The species composition and properties of the enteral luminal pathobiome were studied. 699 inoculations were made, resulting in 3024 isolates. The enteral morphofunctional coefficient, the level of alkaline phosphatase and its intestinal isoform were dynamically studied. In immunohistochemical studies, we studied the expression of CD-3 and Bcl-2. Patients with COVID-19 in addition to a decrease in the level of saprophytic microflora, showed a significant increase in Klebsiella spp., Candida, Clostridium spp. and Citrobacter (p≤0.05). The rate of antibiotic resistance in the comparison group was 8.3%, in the main group - 36.9%. MRSA pathogens were noted in 86.4% of cases, VRSA strains were found in 20.6% of cases. Patients with COVID-19 had a deficiency of intestinal alkaline phosphatase, which persisted even on the day 5 of treatment. Macro- and microscopic studies showed pronounced inflammatory and apoptotic changes in the intestinal wall of patients in the main group. A specific enteral pathobiome that is multiresistant to antibiotics, pronounced inflammatory and apoptotic changes in the intestinal wall, and a predisposition to perforation of the small intestine are characteristics of enteral failure in diffuse peritonitis in the setting of COVID-19.
MODELING OF RESTENOSIS ON IMPLANTED INTRA-ARTERIAL STENT IN EXPERIMENTAL CARDIOLOGY
Authors: Germanova Olga , Fedorina Marina , Germanov Vladimir , Usenova Asel , Germanov Andrey
Published: October 2022

Aim of investigation is to study the features of the mechanism of restenosis on implanted intravascular stent, using the original device for modeling of intra-arterial circulation. Materials and methods. We use an original device for modeling intra-arterial circulation (document of invention RU 202780). It is a simulation of arterial vessel, made of glass tube rotameter. Its free ends are connected with two silicone tubes, with other ends - to the pump, powered by a 12 Volt battery. We injected the fluid (an aqueous solution of glycerin) into the closed system, diluted corresponding to the viscosity of human blood. A fitting is located at the inlet end of the tube, through which we can introduce a dye (ink), a silk thread or intravascular pressure probe inside the tube. Results. As a prototype of intravascular endoprosthesis, we used a metal device 71 mm length, made in the form of a grid with beams directed in a spiral. We installed a conductor with a 5 cm long silk thread inside the endoprosthesis. The pump works simulating the regular heart rhythm or premature ventricular contractions. We observed an intense pressure effect of the first post-extrasystolic wave on the rotameter tube, with the formation of reflected, standing waves (the pressure increased by 160% compared with the regular heart rhythm). Conclusion. With the spread of the first post-extrasystolic wave, a “hydraulic shock” occurs in the arterial vessel. Its mechanical effect can be the starting point for the onset and progression of restenosis in an implanted intravascular stent.
PREMATURE VENTRICULAR CONTRACTIONS: THE NOVEL INDEPENDENT RISK FACTOR OF CRYPTOGENIC STROKE
Authors: Germanova Olga , Galati Giuseppe , Usenova Asel , Germanov Andrey
Published: October 2022

Background. Premature ventricular contractions (PVCs) are not mentioned in the list of risk factors of stroke. Methods. In our investigation, we included 440 patients with PVCs more than 700 per 24 hours. In control group, there were 88 patients with PVCs less than 700 per 24 hours. Within instrumental methods we performed echocardiography (transthoracic or transesophageal), Doppler ultrasound of brachiocephalic arteries, 24-hours electrocardiography (ECG) monitoring, digital sphygmography of common carotid arteries (SG); computer tomography or magnetic resonance imaging of the brain. Laboratory tests were used to identify lipids level, hemoglobin A1c. The patients of the main group were divided into two subgroups up to the characteristics of the revealed PVCs. The 1st subgroup comprised 120 patients with PVCs whose ventricular systole occurred in the phase before the peak of transmitral blood flow in the cardiac cycle, regardless of the location of ectopic foci. In 320 patients with PVCs of the 2nd subgroup the systole of ventricular contraction occurred in the phase after the peak of transmitral blood flow in the cardiac cycle. We observed the patients during 1 year from the onset of the investigation and analyzed the appearance of stroke or transient ischemic attack (TIA). Results. In most instrumental and laboratory parameters subgroups 1, 2 and control group were identical. The most important differences were in hemodynamic and kinetic parameters in accordance to the quantity of PVCs per 24 hours (700 and more in the main subgroups 1,2) and the moment of the ventricular contraction appearance of the PVCs (before or after the transmitral blood flow peak in cardiac cycle). We revealed the following tendency: the earlier PVCs appeared in cardiac cycle the more an increase in hemodynamic and kinetic parameters was observed. All patients were on the common standard therapy. Despite of that, during 1 year from the beginning of the investigation we remarked the statistically significant different appearance of the stroke and TIA within the groups which was more frequent in the 1 subgroup. Conclusion. PVCs are an additional risk factor of stroke. The most dangerous type is when the ventricular contraction (PVC) appears before the transmitral blood flow peak in cardiac cycle. Increased hemodynamical parameters during the spread of the 1st post-extrasystolic wave cause an additional mechanical trauma of arterial intima and can be the key moment in atherosclerotic plaques non-stability with further defragmentation, embolism and onset of stroke. In patients with PVCs more than 700 per 24 hours the promising research can be using novel oral anticoagulants to prevent the cardiovascular events in the dosages as it is indicated in atrial fibrillation.
PERIODONTAL TISSUE MORPHOLOGY IN CHILDREN WITH ABNORMAL OCCLUSION AND CONNECTIVE TISSUE DYSPLASIA SYNDROME
Authors: Domenyuk Dmitry , Kochkonyan Taisiya , Dmitrienko Sergey , Domenyuk Stanislav
Published: October 2022

The study involved an analysis of the data gum biopsies obtained through light microscopy and polarization microscopy in order to identify pathomorphological features and the collagen Type I & Type III ratio in 56 children with occlusion issues, periodontal diseases and various undifferentiated connective tissue dysplasia (UCTD). 32 healthy children with intact periodontium served as a control group. For the histological examination of gum biopsies, the respective sections were stained with hematoxylin and eosin, while Picro-Sirius Red Stain Kit reagents were used to assess the Type I and Type III collagen distribution in the gum connective tissue. The image processing was performed in the ImageJ 1.47 software, while when analyzing the color histograms, the ratio of the red pixels (Type I collagen) and the green pixels (Type III collagen) was identified. The Type I/III collagen ratio (1.41±0.09) in children with chronic catarrhal gingivitis, occlusion issues and a “prominent” degree of UCTD was found to be significantly lower (p≤0.05) the similar ratio observed in patients with clinically healthy periodontium (2.01±0.09), as well as in patients with “mild” and “moderate” UCTD (1.63 ± 0.17) with homogeneous clinical and morphological dental manifestations. The effectiveness of the developed comprehensive dental treatment program for periodontal issues in children with abnormal occlusion associated with UCTD, including conservative anti-inflammatory treatment, pharmacological correction and orthodontic treatment, is justified by an increase in the amount of mature Type I collagen, a decrease in the developing immature Type III collagen, and inflammation in the periodontal tissues. A sufficient degree of maturity and differentiation of connective tissue was also achieved.
ROLE OF SEPTOPLASTY AS A STRESSOR IN P53 AND DARK NEURONS FORMATION DURING SEPTOPLASTY SIMULATION IN RATS
Authors: Kastyro Igor , Mikhalskaia Polina , Khamidulin Georgy , Dyachenko Yulia , Kostyaeva Margarita , Tsymbal Alexander , Shilin Stepan , Popadyuk Valentin , Mankaeva Olga , Sinelnikova Anna
Published: October 2022

The aim of this study was to determine the role of surgical stress on the formation of p53-positive and dark neurons (DN) in the hippocampus, and to examine the parallelism of their formation in the pyramidal layer of the hippocampus. Simulated septoplasty was performed on 20 Wistar rats. The hippocampus and dentate gyrus (DG) were examined, in which the number of DN and p53-positive neurons was determined at 2, 4 and 6 days after surgery. Compared with the control group (n = 5), the number of DN and p53-positive neurons increased in experimental animals at all periods. A direct relationship was obtained between the increase in the number of DN and p53-positive neurons in the hippocampal formation. Septoplasty simulation in rats results in the pathogenetic cascades onset, which, in its turn, changes the morpho-functional properties of neurons of the pyramidal layer of the hippocampus and contributes to their neuroplasticity. Activation of NMDS receptors of neurons during stress, apparently, initiates two ways of neuron life – the beginning of p53 protein expression and the DN formation. Both ways can finally lead to apoptosis. The formation of dark neurons and the expression of the p53 protein in them are most likely to be interconnected and can probably provide neuroprotective mechanisms.
Síndrome de burnout en cirujanos generales en tiempos de la pandemia COVID-19
Authors: Fonseca Sosa Fernando Karel , Fonseca Sosa Kirenia , Martínez de la Cruz Daniel Yelián , Parra Santana Victor Manuel , Gonzalez Machado Juan Daniel
Published: October 2022

Objetivo:Evaluar el síndrome de burnout(SB) en cirujanos generales.Materiales y método:Se realizó un estudio de corte transversal en nuestro centro hospitalario, en agosto de 2021. La muestra estuvo formada por 56 profesionales de la salud que incluyeron a residentes y especialistas en cirugia general que prestaron servicio en el contexto de la COVID-19.Resultados:La prevalencia del burnoutfue del 71%, la edad media fue de 34 años y los residentes fueron los más afectados (62,5%).La distribución del sexo fue de 82,5% en masculinos y 17,5% en el sexo femenino. Del total de evaluados, 23 son casados y 17 solteros, predominando los cirujanos con hijos (60%).Discusión:Entre los pocos estudios publicados sobre el SB en trabajadores de la salud en tiempos de COVID-19 se ubican como posibles factores predisponentes: a las privaciones de sueño,el riesgo biológico ocupacional intrínseco, la cuarentena obligada a la que tienen que someterse los trabajadores de la salud fuera de casa y los dilemas éticos en la toma de decisiones de atención a pacientes. Sin embargo, un estudio ha mostrado que los estresores vinculados al SB más importantes son la falta de equipo de protección personal, el miedo al contagio de COVID-19 y el miedo de contagiar a los familiares.Conclusión:Existe una alta prevalencia del SB en cirujanos generales en el contexto de la pandemia COVID-19. Los más afectados fueron residentes jóvenes de sexo masculino, casados, con hijos y con bajos ingresos económicos.
Enfermedad Diverticular: análisis de defunciones según sexo, grupo etario y regiones en Chile.
Authors: Meneses Columbie Luis Edmundo , Aldunate González Paula Fernanda , Meneses Peralta Javier , Acuña Martínez Catalina Antonia , Millanao Carvajal Gabriel Alejandro , Schatte Vidal Dominique Arlene
Published: October 2022

Objetivo: Describir las defunciones por enfermedad diverticular de intestino en el período 2016 - 2020 en Chile según sexo, grupo etario y región.Material y Método: Estudio descriptivo. Se describieron 406 defunciones por enfermedad diverticular según sexo, grupo etario y región entre los años 2016-2020, realizando un análisis estadístico con el software IBM SPSS Statistics ® que incluyó una Prueba Binomial para análisis de defunciones según “sexo” y la Prueba de Kruskal Wallis para el estudio de significancia entre las variables “sexo” y “grupo etario”. Se utilizó un intervalo de confianza del 99% (p<0,01).Resultados: se obtuvo una tasa de mortalidad 0,46/100.000 habitantes para el período estudiado. El sexo femenino fue predominante con una relación cercana a 3:1 (p<0,01). Las defunciones aumentaron con la edad y el grupo etario con mayor número de defunciones fue el de 80-89. Se demostró relación entre sexo y grupo etario (p<0,01). Las regiones con mayor tasa de mortalidad observada fueron Magallanes, Valparaíso y Maule.Discusión: La tasa de mortalidad es similar a la reportada a nivel mundial. Las mujeres mueren en una proporción mayor que los hombres, tal como es descrito en otros estudios. La mayor tasa de mortalidad observada en algunas regiones del país se podría asociar a la elevada prevalencia de factores de riesgo para la enfermedad.Conclusión: Las defunciones por enfermedad diverticular disminuyeron desde el año 2018, se evidencia que las mujeres presentan un número significativamente mayor de defunciones que los hombres y que existieron diferencias por región.
Transmission Line Fault Classification using Supervised Machine Learning
Authors:   Department of Electrical and Electronics Engineering, Anurag Group of Institutions, Hyderabad (Telangana), India., Reddy D. Ajay Sai , Divya Sheelam ,   Department of Electrical and Electronics Engineering, Anurag group of Institutions, Hyderabad (Telangana), India., Bhargav Islavath Nikhil ,   Department of Electrical and Electronics Engineering, Anurag Group of Institutions, Hyderabad (Telangana), India., Bhanusree Anjuri ,   Department of Electrical and Electronics Engineering, Anurag Group of Institutions, Hyderabad (Telangana), India., Neha Chiripalli ,   Department of Electrical and Electronics Engineering, Anurag Group of Institutions, Hyderabad (Telangana), India.
Published: October 2022

Among Generation, Transmission and Distribution systems of power systems 80-90 % of faults occur in transmission lines. A small electricity interruption or disturbances can cause major problems in transmission lines. Major faults in transmission lines occur because of environmental events like high temperatures, animals, wind, etc and also faulty devices connected to transmission lines are also a major cause for these faults. In modern power systems line faults are one the major and significant problems leading to high power losses and electrical devices failure. So, it is necessary to recover these problems in transmission lines immediately to avoid major problems and also need to eliminate the faults quickly. There are few tools and protective devices installed in transmission lines to prevent these faults but during any complex and bigger faults they require more time and also these protective devices may sometimes fails or may be damaged because excessive major faults in transmission lines. But a data driven method can be more helpful than conventional proposed methods as they need less installation cost and fast responsive and even system operators or any individual can easily identify the type of fault. This paper analyzes supervised machine learning algorithms for classifying different faults in transmission lines.
Professional Development Effectiveness of E-Learning on Quality of Students’ Performance in Higher Education
Authors:   Assistant Professor, Department of Management Information System, Taif University, Saudi Arabia., Alhazmi Dr. Lamia
Published: October 2022

Technology has played an important role in education, changing the learning environment’s traditional style. Widespread use of technological devices harnesses the educational process and creates opportunities to make education available everywhere and at any time. E-learning provides a way to manage and overcome challenges faced by traditional higher education institutions by allowing them to be more competitive. This research conducted a case study of Taif University to evaluate the effectiveness of e-learning development in the higher education sector, and examined its impact on student performance quality, aiming to identify the important axes for developing higher education e-learning. The study analysed the requirements for developing e-learning and investigated opportunities to build and develop e-learning capabilities in higher education in general and Taif University in particular. Many external and internal influences contribute to e-learning trends in higher education; external funding, tuition fees, technology costs, and education development all influence internal pressure to reduce institutions’ costs. Thus, higher education is turning to e-learning to relieve these pressures, because it significantly reduces costs and improves both learning effectiveness and learning outcomes compared to traditional methods. Despite the advantages of e-learning, some higher education institutions remain in the experimental stages of developing and benefiting from it. This research study the relationships between e-learning difficulties, providing requirements, supporting e-learning, and providing e-learning services in higher education and quality performance.
Performance Evaluation of Approximate Adders: Case Study
Authors:   Department of Electronics and Communication Engineering, Aditya Engineering College, Surampalem (A.P), India, Ykuntam Yamini Devi , Penumutchi Bujjibabu ,   Department of Electronics and Communication Engineering, Aditya Engineering College, Surampalem, (A.P), India., Peteti Bala Srinivas ,   Department of Electronics and Communication Engineering, Aditya Engineering College, Surampalem, (A.P), India., Vella Satyanarayana ,   Department of Electronics and Communication Engineering, Aditya Engineering College, Surampalem (A.P), India.
Published: October 2022

A computing device designed to carry out a variety of arithmetic computations. The adder circuit, whose operation must be quick with a small area of occupancy, performs the addition, which is a necessary operation in many other mathematical operations including subtraction, multiplication, and division. There is a mandate for an adder circuit with minimal power consumption, minimal delay, and minimal size in various real-time applications such as processing of signals, pictures & video, VLSI data pathways, processors, neural networks, and many more. There is a new class of adders called approximation adders that operate inaccurately but with favorable area, speed, and power consumption. Since their output is inaccurate, the other names for approximate adders are imprecise adders. This set of adders operates at a high speed thanks to a circuit critical path design that uses fewer components. Additionally, compared to precise adders, the approximate adder circuit has a relatively low component count, resulting in a small footprint and circuits that use less energy. There are different ways to create approximate adders. The area can be predicted by counting the number of circuit components that are present. By examining a number of the critical path’s components, delay can be predicted. Several errors that appear in the output of the particular circuit can be used to calculate the accuracy percentage. This review compares approximate adders from four different categories across the board in terms of design constraints and makes note of the differences between each adder.
Implementing a Hybrid Deep Learning Approach to Achieve Classic Handwritten Alphanumeric MODI Recognition
Authors:   Student, Department of Electronics and Telecommunication, S.P.I.T., Mumbai (Maharashtra), India., Ekbote Maitreyi , Jadhav Aishwary ,   Student, Department of Electronics and Telecommunication, S.P.I.T., Mumbai (Maharashtra), India., Ambawade Dayanand ,   Associate Professor, Department of Electronics and Telecommunication, S.P.I.T., Mumbai (Maharashtra), India.
Published: October 2022

MODI, synonymous with the Devanagari script, is an ancient script from the 17th century used by the Maratha empire as a symbol of culture and power to propagate Marathi. Due to a decline in its usage, absence of quality script database and an unavailability of good literature, identification and translation of MODI script is demanding. The present work deals with a novel study on the recognition of MODI characters and numerals by using Convolutional Neural Network (CNN) architecture. By using a traditional machine learning classifier, classification is performed, and then through a comparative analysis of Random Forest and XGBoost, the study achieves recognition accuracy of 92% for characters and 93.3% for numerals.
Sustainable Digitalization by Leveraging Digitainability Matrix in Supply Chain
Authors:   College of Management, Walden University, Minneapolis, MN, USA., Shashi Dr. Manish
Published: October 2022

Digitalization, also called digital transformation, applies digital technologies and enablers to bring transparency and intelligence to operations to increase efficiency. Sustainability aims to responsibly control the impact of operations on society and the environment. Digitalization creates new opportunities and possibilities for business but also produces new challenges in sustainability. In most cases, strategies related to digitalization and sustainability operate independently and are driven by separate sub-organizations in a decentralized and sporadic manner. A digital maturity model is a valuable tool to access the current state of the supply chain and guide it toward a better state of digitalization. The digitainability matrix, also knowns as the digital sustainability matrix, serves as a collaborative method to address any potential short-term or long-term undesired effects of digital technology usage. A seamless global supply chain with sustainability at the center of all activities and adopting visibility and integration at all touch points helps organizations. Business managers should adopt green digitalization tools to improve their sustainability performance which is vital to improve an organization's triple bottom line: profit, people, and the planet.