bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of the adecuacy of KIM-LHC method in assessing the risk level based on biomechanical loads for manual lifting tasks: A laboratory study
Authors: Afshari Davood , Kord Samira , Taheri Seyedeh Maryam , Latifi Seyed Mahmood
Published: September 2022

Introduction: Manual Material handling includes activities in which pushing, pulling, lifting, lowering, carrying, and holding the load, the most common of which is lifting. This study aimed to evaluate the reliability of the KIM-LHC method to identify high-risk manual load lifting tasks.
Material and Methods: This cross-sectional study was performed on healthy male workers with a history of manual material handling in a laboratory setting. The sample size was determined according to previous studies of 15 people. The participants were required to perform 25 tasks with four iterations randomly. An inclinometer device was used to determine the forward bending angle at the waist. Compression loads exerted on L5/S1 were estimated using 3DSSPP software using participants' postural and anthropometric information. Also, the tasks were evaluated using the KIM-LHC method, and their final scores and levels of MSD risks were determined. Data were analyzed using SPSS.20 software and the Chi-square test.
Results: The results of compression load estimation for lifting tasks showed that 92% of the tasks had a low-risk level (less than 3400 N), and 8% of the tasks had a medium-risk level (3400 to 6800 N). While the results of the KIM-LHC method showed that 28% of tasks had a low-risk level, 64% had a medium level, and 8% had a high-risk level. 
Conclusion: The results of this study showed no correlation between the risk levels of the KIM-LHC method and the estimated compression load for some designed lifting tasks. Therefore, there is a possibility of error in estimating the risk level of some lifting tasks by the KIM-LHC method, and more biomechanical studies should be performed on kinetics and kinematics.
Determining the relationship between burnout and general health among health workers working in Arak health center
Authors: Solhi Mahnaz , Majidi Zahra , Paykari Armin
Published: September 2022

Introduction:Work environments have harmful physical, social, and workplace psychological factors that can affect people's health and disrupt other areas of people's lives. Workplace human resources spend at least a third of their lives at work, and the pressures and stresses of work can jeopardize their health and, consequently, threaten organizational interests and goals. Decreasing the performance of the individual, the amount of productivity of the organization also decreases. In recent years, one of the most critical issues and problems in administrative systems, including occupational hazards that have attracted the attention of researchers, is the issue of public health and burnout of individuals in an organization. Due to the recorded adverse effects of burnout, this syndrome can affect job performance, such as quality of work, general health, and job satisfaction. One of the main inevitable consequences of job stress is burnout, affecting the quality of care provided by health workers. This study aimed to determine the relationship between burnout and general health in health workers in Arak health centers.
Materials and Methods: In this descriptive-analytical study, 110 health workers working in the Arak health center were studied. The number of samples was done using census, and all health workers working in Arak Health Center were selected. Data collection tools in this study were a 22-item Maslach burnout questionnaire and a 28-item general health questionnaire. The data of this study were analyzed using descriptive data and one-way ANOVA, and Pearson correlation coefficient by SPSS22 software.
Results: According to the findings of this study, there was a significant relationship between general health and burnout, meaning that people with higher general health experienced lower rates of burnout. The status of burnout was moderate among the health workers studied. The burnout scores of male and female health workers were almost the same, and there was no significant difference between them. There was a statistically significant direct relationship between general health and emotional fatigue and depersonalization using Kendall, Pearson, and Spearman test. A statistically significant inverse relationship was observed between general health and personal inadequacy.
Conclusion: Considering the relationship between burnout and public health, the Arak city health center managers must implement programs to promote and improve job motivation, human relations, and a sense of self-efficacy. Promoting general health and reducing the burnout rate of health workers should be a priority for the University of Medical Sciences managers.
Hepatitis B and Hepatitis C in large vehicle drivers in center of Iran (Yazd)
Authors: Amirbeigy Tafti Mohammad Kazem , Baghbanian Mahmud , Nagafabadi Farzane Jafari
Published: September 2022

Introduction: Hepatitis B and C are major health problems in many countries, especially developing areas. The frequency of hepatitis B is less than 0.8%, and chronic hepatitis C is less than 0.5% in the general population of Yazd in the center of Iran. Large vehicle drivers have some risk factors for acquiring hepatitis B and C infection. This is important because viral hepatitis complications, including cirrhosis and encephalopathy, may lead to road accidents. This study aims to determine the frequency of hepatitis B and C in large vehicle drivers.
Material and Methods:In this cross-sectional descriptive study, 516 inter-province large vehicle drivers were tested for HBS Ag and HCV Ab in 2018. Liver function tests, physical examination, and abdominal sonography were done for all subjects with positive HBS Ag and/or anti- HCV.
Results: Eight drivers (1.6%) had HBS Ag, and 7 cases (1.4%) had HCV Ab. There was a significant relation between hepatitis B and journey numbers in the month (P-value=0.048); when the drivers have more journeys, they are at higher risk for hepatitis B. None of the patients had cirrhosis.
Conclusion: The hepatitis B and C frequency among large vehicle drivers was 1.6% and 1.4%, respectively. Our findings indicate that hepatitis B and C frequency is significantly higher than in the general Iranian population (P-value=0.014 (.  Hepatitis complication such as Cirrhosis and hepatic encephalopathy cause traffic accidents. So prevention, diagnosis, and treatment of viral hepatitis are important in this group.
A manufacturing industry's perspective on Covid-19 survivors in Harare, Zimbabwe
Authors: Tarisayi Daniel
Published: September 2022

The Covid-19 pandemic has had devastating mental health effects on most people mainly as a result of measures being used to contain it like self-quarantine, self-isolation, and social distancing. This study seeks to explore the lived experiences of Covid-19 survivors at a manufacturing company in Harare, Zimbabwe. The objectives of the study were to describe the psychosocial experiences of Covid-19 survivors, explore the coping mechanisms employed by the Survivors, and come up with a psychosocial support model for Covid-19 management. A qualitative research approach was used. A total of 8 participants took part in the study. The researcher utilized purposive sampling to select study participants. Data was collected using a semi-structured interview guide. Data were analyzed using thematic analysis. Major findings of the study were that participants had near-death experiences accompanied by grief experiences shock and panic in the first three days post-diagnosis with Covid-19 which altered the mental state of individuals.

Keywords: Covid-19; Manufacturing Industry; Psychosocial; Survivors.
Expediente
Authors: Carmo Felipe Silva
Published: September 2022

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influência do exercício físico na Microbiata Intestinal
Authors: Tomasi Gravato Gabriella , Calixto de Campos Daniela , Setaro Luciana
Published: September 2022

A microbiota intestinal é constituída por trilhões de micróbios que desempenham diversas funções para a saúde do hospedeiro. Para obter esses benefícios, a proporção entre as espécies das bactérias que constituem esse aglomerado deve estar em equilíbrio. Junto a isso, existem alguns fatores que influenciam direta e indiretamente na composição da microbiota, sendo o exercício físico um deles. Sendo assim, o presente estudo objetiva explicar por meio da literatura os efeitos que o exercício físico exerce na microbiota intestinal de atletas e de pessoas ativas. Trata-se de uma pesquisa de revisão da literatura da base de dados Pubmed, considerando o período de 2016 até abril de 2021. Foram incluídos 23 estudos de revisão da literatura e de revisão sistemática. Alguns estudos sobre a relação exercício físico e microbiota propõem que o tipo, o tempo e a intensidade do exercício influenciam de formas distintas, tanto positiva quando negativamente, essa diversidade. O exercício de baixa intensidade proporciona benefícios para a saúde da microbiota. Em compensação, nos exercícios de alta intensidade são liberados componentes que estão relacionados com o aumento da inflamação e com a disbiose intestinal, que podem, além disso, diminuir o desempenho físico de atletas de elite. Dessa forma, mais estudos devem ser realizados a fim de encontrar resultados mais robustos sobre o tema, que se mostra de extrema importância para a saúde dos indivíduos e para melhora do desempenho de atletas de alta performance.
Efeitos da terapia do espelho em amputação de membro superior
Authors: Zonta Sergio Junior , Haetinger Michele Dariva , Costa Nathalie da , Silva Rafael Kniphoff da , Carvalho Lisiane Lisboa , Silva Angela Cristina Ferreira da
Published: September 2022

O ato de amputar um membro ou parte dele é um recurso terapêutico utilizado na medicina a fim de salvar a vida do paciente e/ou melhorar sua qualidade de vida diminuindo a comorbidade. Objetivos: Investigar a melhora da dor e da sensação fantasma, refletidas na funcionalidade e na qualidade de vida em um amputado transradial. Métodos: Estudo de caso observacional exploratório, com um indivíduo que possui amputação transradial em membro superior direito. Foi realizada a avaliação da dor fantasma, da sensação fantasma e da funcionalidade por meio do TEMPA e da escala visual analógica (EVA) e da qualidade de vida mediante o Questionário SF-36. Resultados: Comparando a EVA inicial (7) com a final (3), o TEMPA e o SF-36 não mostraram melhora na funcionalidade e qualidade de vida do indivíduo. Considerações finais: A terapia do espelho mostrou-se capaz de diminuir a dor e sensação fantasma em amputado de membro superior.
Novas descobertas
Authors: Ferreira Maurício Lamano , Silva Natália Cristina de Oliveira Vargas e
Published: September 2022

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Perception of Residents in Manaus on the Urban Afforestation
Authors: Maria Boaventura Corrêa Arruda Yêda , Paula Rebouças de Souza Ana , Pereira de Vasconcelos Júlia , Lopes Neto David
Published: September 2022

The municipal governments, through their Environmental Secretariats, seek to invest in afforestation through public policies, educational campaigns and seedling distribution. However, the actions are inefficient, as studies on afforestation are based on inventories of species planted in public places, few studies seek to understand the population on the subject of afforestation. It is believed that the work of environmental education is of paramount importance. This study aimed to analyze the perception of afforestation of residents from different areas of Manaus, Amazonas state through an interview in the city of Manaus. Most participants were women aged 18-28 years. Most residents have completed primary education. Residents understand what urban afforestation is and the benefits of planting trees can bring, but they are not aware of the most suitable species to be buried in the city.
Brazilian National Urban Forest Policy
Authors: Tonelli Caiche Daniel
Published: September 2022

Despite the growing knowledge on the benefits of the Urban Trees, there is a gap related to the dimension related to the dimension of governance, normative instruments and public policies. In an attempt to improve this context, the Brazilian Society of Urban Forest instituted the Urban Forest National Policy Work Group (GTPNAU) inserted in the scope of the Standardization and Certification Brazilian Committee. GTPNAU had as its goal to elaborate a public policy proposal at national level, capable of offering guidelines and instruments, based on principles that acknowledge the urban forest as a public utility service. Another important expected result with the advance of the Brazilian National Urban Forest Policy consists on the understanding of Urban Trees as essential infrastructure for life in cities, on behalf of the several urban stakeholders, public managers, decision makers, real estate investors and companies that provide services; in order to correct the distortions in the urbanization process, that currently transform the green areas in urban cities in something that just a little piece of the population can enjoy which should be available for everyone.
Editorial
Authors: Lamano Ferreira Maurício , Cristina de Oliveira Vargas e Silva Natália , Aoki Camila , Periotto Fernando , Zabotto Alessandro
Published: September 2022

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The Social Construction of the Urban Trees Law in Chile
Authors: Michea Valenzuela Cecilia
Published: September 2022

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Analysis and Classification of Squares within the Urban Frame of the City of Manaus - Amazonas
Authors: Paula Boaventura Corrêa Cavalcanti Brenna , Maria Boaventura Corrêa Arruda Yêda , Rogério Bastos Cavalcanti Lúcio
Published: September 2022

The squares are a strategic place to invest in the afforestation of a city, as they are less confronted with buildings and energy transmission networks, but mainly because they are a place of social interaction and recreational activities. Therefore, knowing its spatial configuration and its access by the surrounding population will allow for better planning by public agencies regarding the implementation, maintenance and floristic composition of the squares. Therefore, the main objective of the study was to analyze the design of squares within the urban frame of the city of Manaus - Amazonas, Brazil. Twenty-four squares were studied through mapping and visual analysis of satellite images from the Google Earth software. Subsequently, the classification according to the type of square proposed by De Angelis and De Angelis Neto (2000) was used. A total inventory of tree specimens (DBH > 10 cm) was carried out, being registered 513 trees distributed in 13 families, 31 genus and 35 species. Of the cataloged species, 51.4% (n=18 species) are classified as exotic to Brazil and 48.6% (n=17 species) are native to Brazil. However, of the 17 native species, 15 are native to the Amazon. The insertion of Manauaras squares in its urban frame is not standardized, so it was necessary to create four subtypes of squares to meet the specific reality of Manaus. It was found that the dominant type of classification of square, regarding insertion in the urban frame, is type 3 (54.2%), followed by type 2 (29.2%) and type 4 (16.6%).
O perfil sociocultural dos estudantes da licenciatura em educação do campo da Universidade Federal Rural do Semi-árido
Authors: Medeiros Emerson Augusto de , Amorim Giovana Carla Cardoso
Published: September 2022

Este texto apresenta uma análise acerca do perfil sociocultural dos estudantes da Licenciatura Interdisciplinar em Educação do Campo da Universidade Federal Rural do Semi-Árido (LEDOC/UFERSA). Com base em um levantamento documental, toma para análise informações de 257 discentes da referida graduação. A análise se encontra sistematizada em cinco “eixos temáticos”, a saber: a) número de discentes homens e mulheres; b) faixa etária dos formandos; c) pertença étnico-racial; d) faixa de renda familiar; e) naturalidade dos estudantes. Como conclusão, sobrelevamos que a maior parte do alunado é constituída por mulheres, possui faixa etária entre 17 e 25 anos, se autodeclara parda ou preta, tem como renda familiar até dois salários mínimos e possui naturalidade referente a cidades circunscritas na Mesorregião do Oeste Potiguar do Estado do Rio Grande do Norte. Esses aspectos, entre outros, apontam para a feminização na formação de professores da Educação do Campo e para a inclusão de grupos sociais do semiárido potiguar na Educação Superior, os quais foram marginalizados na formação da sociedade brasileira.
Desafios ao engajamento acadêmico no ensino superior
Authors: Santos Leandro da Costa , Severo Leonardo Rolim , Correia Lindinalva de Alcântara
Published: September 2022

O objetivo do texto consiste em discutir, a partir de uma pesquisa com estudantes da Educação Superior, a satisfação acadêmica como fator para a promoção do engajamento acadêmico. Além disso, examinou fatores sociodemográficos capazes de afetar a satisfação acadêmica dos alunos. A pesquisa foi realizada com a utilização de um questionário virtual que contou com 320 respostas válidas de estudantes de instituições públicas e privadas. Na análise dos dados obtidos, foram utilizados três tipos de exames estatísticos: estatística descritiva, análise de variância multivariada (MANOVA - Multivariate Analysis of Variance) e análise de variância (ANOVA). Os resultados evidenciaram que, de modo geral, os/as estudantes sentem-se satisfeitos academicamente com as oportunidades formativas no Ensino Superior e que as variáveis sociodemográficas conclusão do ensino médio, exercício de atividade laboral e exercício de atividade de pesquisa na Instituição de Ensino afetam, de maneira significativa, a satisfação acadêmica. Estes resultados são importantes, pois com base nas informações sobre fatores sociodemográficos de seus alunos, as Instituições de Ensino Superior podem promover ações eficientes para a promoção da satisfação acadêmica e o consequente engajamento do/a estudante, através da geração de um ambiente educacional capaz de gerar sentido e vínculo.
Adölesanlar arasında internet bağımlılığı prevalansı ve etkili faktörler: Erzurum ili örneği
Authors: KÖYCEĞİZ Edanur , VANÇELİK Serhat , YILMAZ Sinan
Published: September 2022

Amaç: Adölesan çağın özellikleri göz önüne alındığında adölesanların internetin olumsuz etkilerine karşı savunmasız ve internet bağımlılığı açısından oldukça duyarlı bir grup oldukları bilinmektedir. Bu çalışmada, adölesanların internet bağımlılığı düzeylerinin ve etkili faktörlerin belirlenmesi amaçlanmıştır.Yöntem: Kesitsel nitelikteki bu çalışmaya, Erzurum il merkezi ortaöğretim kurumlarında öğrenim gören 798 öğrenci katıldı. Çalışma verilerinin toplanmasında kişisel bilgi formu ve Young İnternet Bağımlılığı Ölçeği kullanıldı.Bulgular: Çalışmada adölesanların %18.9’u (K: %20.6, E: %17.1) patolojik internet kullanıcısıydı. Katılımcılar interneti en sık film/video vb. izleme (%16.9), sosyal medya (%16.1) ve eğitim ve/veya araştırma (%15.6) amaçlı kullanıyordu. Sigara içenöğrencilerde (%17.0) internet bağımlılığı anlamlı düzeyde yüksekti (p<0.001).Sonuç: Yaklaşık her beş öğrenciden birinin patolojik düzeyde internet kullanıcısı olarak saptanması, adölesanlarda önemli bir halk sağlığı sorunu olduğuna işaret etmektedir. İnternet bağımlılığı düzeylerinin ve belirleyicilerinin kapsamlı çalışmalar ile ortaya konulması, etkili müdahalelerin belirlenmesinde önemlidir.
The Covid-19 effect on medical students’ perceptions of their profession: A mixed methods study from South India
Authors: Vaz Manjulika , S Sumithra , Ravindra Rashma , Chandran Suhas , Ramachandra Sandhya , Timms Olinda
Published: September 2022

Covid-19 has devastated human lives and stretched the limits of the medical profession and health systems. Using the mixed methods of online survey and online focus group discussions, we assessed how medical students and interns of two medical colleges in South India viewed the profession they had chosen. Of the 900 participants, 571(63.4%) had a positive perception of the medical profession, 77(8.6%) a negative perception and 252(28%) were undecided. The year of study in medical school was significantly associated with their perception of the medical profession, with interns more likely to have a negative perception (p<0.001). An overwhelming 823(91.4%) participants remained confident of their career choice, but a higher proportion of interns were less confident or regretful about their choice of profession compared to first to fourth year students (p<0.001). Most participants experienced moral distress; they acknowledged a duty to care but were troubled by personal risk, inadequate protection, and limited resources. Gaps were identified in medical and ethics training particularly regarding uncertainties and coping with deficiencies of the health system as encountered in the pandemic. The essential role played by doctors with its required competence, care and ethics cannot be assumed or expected without investment in the making of the future doctor through more socially embedded medical education imparting the skills of understanding the public, responding to them and being the advocate for their equitable and optimal care. An ethics of responsiveness emerges as important for healthcare, also for medical education in preparation for future health crises.
The Transformation From Leadership Behavior to Leadership Thinking
Authors: Xu Lanqing
Published: September 2022

Foreign research on teacher leadership has experienced three waves, from the personal behavior of teacher leaders to teaching ability and then to a position or a way of thinking. The behavior theory of teacher leadership mainly focuses on the formal position of teacher leaders, and sees the specific tasks of teacher leaders. The theory of teacher leadership mainly points to the classroom teaching leadership of teachers. Both see teacher leadership as an individual effort. On the other hand, the thinking mode of teacher leadership regards teacher leadership as a process of changing schools, a way and strategy to change organizational culture structure, and a collective effort. The research on teacher leadership has potential value for school improvement, which requires further clarifying the purpose of improving teacher leadership. The root of teacher leadership is to cultivate teachers’ sense of responsibility, promote the growth and development of teacher leadership from an appreciation perspective, and cultivate teachers’ appreciation eyes and appreciation ability.
RELEVANCE ANALYSIS OF CIVIL ENGINEERING COMPETENCY ACCORDING TO THE CONSTRUCTION INDUSTRY NEEDS IN VOCATIONAL HIGH SCHOOL
Authors: Wit Daryono Rihab , Bachrawi Luthfi Muhammad , Eka Tuah Yayan Adrianova
Published: September 2022

Vocational High School (VHS) graduates as new workers are expected to be able to enter the workforce immediately after completing their education with the skills they have. But in reality, many graduates from vocational students do not work according to their field of expertise. This study aims to reveal competencies according to standards and needed by the construction industry and how much relevance is the level of competence in the curriculum and implemented in schools. The study was conducted in 15 construction industries with the characteristics of the respondents, namely directors, project and site managers, estimators, senior engineers and drafters, and architects. This type of research is quantitative descriptive research. The instrument, which consisted of 37 competency items, was validated using Exploratory Factor Analysis (EFA) techniques and the reliability was based on the Average Variance Extracted and Construct Reliability (CR) values. Overall, the competency instrument has met the Goodness of Fit (GoF) of construct validity and reliability. The results of the study reveal the level of relevance of civil engineering competencies based on three aspects, namely basic knowledge, work skills, and personal, obtaining results of 80.856% with relevant categories. These results are a reflection of the percentage of the construction service industry's needs for the competencies mastered by civil engineering graduates. This can be interpreted that the curriculum used in schools has taken into account the needs of the industry.
Analisis Karakter Pelajar Abad 21 Dalam Studi Kasus di SMA Kristen Makedonia
Authors: Anugrah Meisakh , Astuti Indri , Afandi Afandi
Published: September 2022

Kemajuan teknologi yang sangat pesat berpengaruh pada karakter siswa. Karakter pelajar abad 21 diperlukan untuk mempesiapkan siswa dalam menghadapi kemajuan teknologi. Penelitian ini bertujuan untuk menilai karakter abad 21 pada siswa SMA Kristen Makedonia. Sampel sebanyak 114 orang siswa di SMA Kristen Makedonia menyelesaikan survei menggunakan angket. Pengambilan angket ini melingkupi 6 indikator yaitu iman dan katakutan akan Tuhan Yang Maha Besar, keberagaman global, gotong royong, mandiri, kritis dan kreatif. penilaian karakter abad 21 sangat membantu para pendidik untuk mengarahkan dan memimbing para siswa untuk bisa terus berjuang mempertahankan nilai -nilai positif dari karakter tersebut. Selain itu bisa dijadikan gambaran tentang keberadaan karakter pelajar abad 21 di SMA Kristen Makedonia. Temuan pada penelitian ini mencerminkan bahwa siswa di SMA Kristen Makedonia memiliki karakter pelajar abad 21 dengan kriteria sangat baik (mean = 85.95)
THE EFFECT OF AUTHENTIC LEARNING APPROACHES AND ASSESSMENT TECHNIQUES ON STUDENTS' STATISTICS BASIC TEST RESULTS BY INTELLIGENCE CONTROL
Authors: Iskandar Isak , Ahmad Ahmad
Published: September 2022

The purpose of this study is to determine the effect of authentic learning approaches and assessment techniques on students' basic statistical learning outcomes by controlling intelligence. This research is a quasi-experimental research using a 2x2 factorial design which includes 80 samples of KPI students. The results are (1) the results of the basic statistical basic test of students who use a scientific approach are higher than students who use a contextual learning approach (2) the results of the basic statistical test of students who use essay tests are higher than students who use portfolio assessment (3) there are the effect of the interaction between the learning approach and authentic assessment techniques on the results of the basic statistical basic test of students (4) especially for students who learn to use essay assessment, the results of the basic statistical test of student groups with a scientific approach are higher than contextual learning (5) especially for students who learn to use portfolio assessment, the results of the basic statistical test of student groups with a contextual approach are lower than scientific learning (6) especially for students who learn to use a scientific approach, the results of the basic statistical test of student groups with essay assessments are more higher score than using portfolio assessment (7) especially for students who learn to use a contextual approach, the results of the basic statistical test for groups of students with portfolio assessment are lower than using essay assessment. Therefore, it is recommended for lecturers to know the success of students in receiving the material, it is better to use a scientific approach and form of essay assessment.
NAKED EYE ESTIMATES OF MORNING PRAYER AT TUBRUQ OF LIBYA
Authors: Hassan Amir Hussein , Abdel-Hadi Yasser Abdel-Fattah , Rahoma Usama Ali , Issa I. A.
Published: September 2022

Naked eye observations at Tubruq sky (φ = 32° 05´, λ = 23° 59´) in Libya at the Mediterranean coast (see-desert background) during the two years (2008 – 2009) of morning twilight have been recorded.  These observations led us to get some estimates about morning twilight, as it is necessary to determine the time of the True Dawn (Al-Fajr Prayer Time).  this research aims to determine the correct time of Al-Fajr Prayer by finding the accurate angle of the sun vertical depression below the horizon that is associated with legitimate mark. The Methode used in this research was field research while the observations have been recorded by monitoring the first white thread on the eastern horizon (True Dawn) that announces the time of the Morning Prayer (Al-Fajr Prayer).  The azimuthally range of observation about the solar vertical extends from 0° up to ±20°, while the phenomenon was followed from 0° up to 20° along the altitudinal range.  This research gives a result that a beginning of the morning twilight is estimated to be around 13.5° depression of the sun below the horizon.  This value can reach a minimum depression around 11.5° at low visibility and a maximum around 13.5° at a very god visibility.
educação e a narração da vida
Authors: Santos Claudecir dos
Published: September 2022

Esse artigo é fruto de diferentes experiências no campo da educação, entre elas, uma pesquisa Stricto sensu que fez aproximações de alguns conceitos benjaminianos para com a educação. Fundamentado, portanto, na obra do filósofo alemão Walter Benjamin, o artigo discute sobre a educação e a narração da vida, procurando mostrar que a rememoração é um ato educativo que precisa ser aprimorado. O objetivo do artigo é perceber como, em tempos de pandemia, a educação e a narração da vida se articulam e são rememoradas nas e através das experiências humanas.
estado da arte das políticas de atendimento educacional em ambiente hospitalar e domiciliar no Brasil
Authors: Fernandes Edicléa Mascarenhas , Medeiros Jucélia Linhares Granemann de , Orrico Helio Ferreira
Published: September 2022

O estudo discute o estado da arte das políticas educacionais brasileiras para o atendimento educacional em ambiente hospitalar e domiciliar nos contextos nacional, governamental e municipal. Fundamenta-se em teóricos da filosofia, sociologia, políticas públicas e educação especial. A metodologia é descritiva, exploratória. Os dados foram catalogados em ordem temporal, com base em fontes documentais contidas em leis, decretos, resoluções e pareceres. Após análise, verificaram-se referências descontínuas a estas modalidades nas legislações nacionais, causando invisibilidade e falta de monitoramento de dados, em contraste com estados e municípios que apresentaram nos planos municipais e normativas. Sugere-se a necessidade de ações intersetoriais para implantar diretrizes nacionais, definir formas de financiamento, monitoramento e formação de recursos humanos para garantia do direito à educação de crianças e jovens que, por motivos de saúde, não possam frequentar as classes comuns das escolas em que estão matriculados, reduzindo o fracasso escolar, evasão e garantindo a plena cidadania.
Educação histórica, pandemia e ensino de história
Authors: Gonçalves Rita de Cássia , Sobanski Adriane de Quadros
Published: September 2022

No contexto da pandemia de Covid-19, os desafios para o ensino de História encontraram, na tecnologia, novo respaldo, mas também contradições. Com nova perspectiva do ensino da disciplina, ancorada no campo teórico da Educação Histórica, o trabalho a partir da epistemologia da História passou a exigir dos professores historiadores uma prática em que a relação com as fontes históricas é fundamental. Desse modo, a ideia de fonte histórica foi ainda mais ampliada, já que a web contém uma infinidade de materiais que podem ser concebidos como documentos históricos. Além disso, a utilização da internet como meio de interação entre os diferentes sujeitos no processo de escolarização pressupôs uma relação em que a tecnologia precisou ser ressignificada devido à possibilidade de apoio, mas também pela sua influência como disseminadora de informações superficiais e céticas com relação ao conhecimento científico.
Formação para uma personalidade antirracista
Authors: Mwewa Christian Muleka , Matos Patrícia Ferraz de
Published: September 2022

Este artigo aborda o racismo no contexto da formação da personalidade. A análise do conteúdo e da forma de uma miniconferência (realizada em 2017 no Teatro Maria Matos de Lisboa) será baseada em três pressupostos: o racismo existe, não se nasce racista e é preciso apostar numa educação antirracista desde a infância. O ensaio, que inclui a conferência dirigida a crianças e a entrevista com um dos palestrantes, apoiou-se em literatura sobre “raça”, racismo, colonialismo e diversidade cultural, sobretudo no que diz respeito aos contextos português e brasileiro. Esta iniciativa lançou luz sobre relações sociais subalternizantes que inferiorizam uns indivíduos em detrimento de outros, principalmente em função do seu fenótipo. Os resultados indicam a pertinência de iniciativas como esta, pois nelas germina um potencial para a formação de uma personalidade antirracista com vistas à equidade social e ao respeito pelas diferenças (nacionais, étnicas, fenotípicas e econômicas, entre outras).
Autoestima educando desde y para la paz
Authors: Rubilar Yasna
Published: September 2022

La autoestima es un constructo clave en el desarrollo del ser humano, a lo largo de toda la vida, su trascendencia tiene directa influencia sobre la calidad de vida, productividad y salud mental de las personas. El objetivo de esta investigación es dar a conocer programas de intervención que se utilizaron para fortalecer la autoestima de los estudiantes, con resultados verificables y que puedan ser replicados en diversas Instituciones educativas. Para tal efecto, se realiza una revisión sistemática en SciELO, Redalyc, Dialnet. Los resultados evidencian que todos los programas de intervención implementados según criterios de inclusión presentaron un aumento en la autoestima de los estudiantes. En este escenario todos los esfuerzos deben propender a este autoconocimiento, que propicia una cultura de paz y no violencia, tan necesaria en estos días.
Light bullets with Bessel cross section in the environment carbon nanotubes
Authors: Belonenko A. M.  , Dvuzhilov I. S.  , Dvuzhilova Yu. V.  , Belonenko M. B.
Published: September 2022

The propagation of three-dimensional extremely short optical pulses (light bullets) with a Bessel cross section in a medium of carbon nanotubes placed in an optical resonator is considered. As a result of numerical calculations, it was found that such pulses propagate stably with conservation of energy in a limited region of space, including at large times of the order of 100 ps. Keywords: extremely short optical pulses, nonlinear medium, light bullets, carbon nanotubes.
New optical method to study oxygen activity in flowing liquid
Authors: Davydov P. V.  , Logunov S. E.  , Dudkin V. I.  , Davydov V. V.
Published: September 2022

The necessity to study the oxygen activity of aqueous media in the flowing state to solve various problems has been substantiated. It has been found that emitted γ-quanta as a result of decay of 16N nuclei with energy more than 9 MeV cause the formation of additional color centers and reversible optical defects in the fiber. Their appearance leads to increased radiation-induced losses in the optical fiber, which reduce the power of laser radiation transmitted through it. A new optical method has been developed that makes it possible to study the nature of oxygen activity change by the number of γ-quanta emitted by 16N nuclei when the liquid moves along the pipeline. For the first time, the nature of the change in the spectral distribution of the number of 16N nuclei emitted as a result of oxygen activity was investigated, and its features in the current flow were determined. In order to realize long-term studies of oxygen activity, a method was proposed to restore optical properties of fiber in the presence of background radioactive radiation. Keywords:
Recombination in gapless HgTe/CdHgTe quantum well heterostructure
Authors: Aleshkin V. Ya.  , Dubinov A. A.  , Gavrilenko V. I.  , Pavlov S. G.  , H.-W.Hübers H. -W.
Published: September 2022

Three recombination mechanisms of nonequilibrium carriers in gapless undoped quantum well in HgTe/CdHgTe heterostructure are considered. Dependencies of ensemble-average probability of recombination (inverse of recombination time) on concentration of nonequilibrium carriers for recombination with emission of optical phonons, recombination with emission of two-dimensional plasmons, and radiative recombination have been calculated. Key words: gapless HgTe quantum well, recombination mechanisms of nonequilibrium carriers.
Ferromagnetic resonance in a single-domain particle with uniaxial anisotropy under longitudinal excitation
Authors: Vasilevskaya T. M  , Sementsov D. I.  , Shutyi A. M.
Published: September 2022

An additional resonance peak near the effective anisotropy field HKN is identified on the basis of analysis of magnetization precession dynamics of single-domain uniaxial magnetic ellipsoid particle in the spectrum of ferromagnetic resonance, corresponding to bias along the "hard" axis, under longitudinal excitation by a weak high-frequency field. This peak is related to manifestation of the angular bistability arising due-to the presence of two symmetrical angular equilibrium positions of particle magnetization in a field that is weaker than the HKN field. Key words: ferromagnetic resonance, "hard" plane, longitudinal excitation, bistability, effective anisotropy, precession trajectory, high-frequency response.
Energy Spectrum and Optical Absorption Spectraof endohedral Fullerenes Lu-=SUB=-3-=/SUB=-N\@C-=SUB=-80-=/SUB=- and Y-=SUB=-3-=/SUB=-N\@C-=SUB=-80-=/SUB=-within the Hubbard Model
Authors: Silant'ev A. V.
Published: September 2022

Anticommutator Green's functions and energy spectra of fullerene C80,endohedral fullerenes Lu3N@C80 and Y3N@C80 with the Ih symmetry groups have been obtained in an analytical form within the Hubbard model and static fluctuation approximation. The energy states have been classified using the methods of group theory, and the allowed transitions in the energy spectra of molecules C80, Lu3N@C80 andY3N@C80 have been determined. On the basis ofthese spectra, an interpretation of experimentally observed opticalabsorption bands endohedral fullerenes Lu3N@C80 andY3N@C80. Keywords: Hubbard model, Green's functions, energy spectrum,nanosystems, fullerene C80, endohedral fullerene Lu3N@C80, endohedral fullerene Y3N@C80.\
The change in the thermal conductivity of a multilayer array of carbon nanotubes during its lateral compression
Authors: Savin A. V.
Published: September 2022

Numerical simulation of thermal conductivity across a multilayer array of single-walled carbon nanotubes is carried out. The effect of transverse compression of the array on thermal conductivity has been studied. It is shown that the compression of the array can occur uniformly when all the nanotubes of the array are compressed equally, and it can occur inhomogeneously when a part of the nanotubes is strongly compressed, and the other part is weakly compressed. With homogeneous compression, the thermal conductivity of the array increases, but with inhomogeneous compression, it does not change and may even decrease in case of a large number of layers. This effect is especially pronounced for arrays of nanotubes of small diameter (D<2 nm). Keywords: carbon nanotubes, nanotube arrays, transverse compression, heat conductivity.
Thermoelectric properties of (CuInSe-=SUB=-2-=/SUB=-)-=SUB=-1-x-=/SUB=-(In-=SUB=-2-=/SUB=-Te-=SUB=-3-=/SUB=-)-=SUB=-x-=/SUB=- solid solutions
Authors: Abilov Ch. I.  , Hasanova M. Sh.  , Huseynova N. T.  , Kasumova E. K.
Published: September 2022

The results of studying the temperature dependences of electrical conductivity, thermoelectric coefficient, Hall mobility of charge carriers, total and electronic thermal conductivity, as well as the phonon thermal resistance of alloys of solid solutions (CuInSe2)1-x(In2Te3)x, where x=0.005 and 0.0075. The values of these parameters for certain temperatures were used to calculate the values of the thermoelectric figure of merit of the indicated compositions. It turned out that with an increase in temperature, the thermoelectric figure of merit tends to grow strongly, which is why it can be concluded that these materials can be used in the manufacture of thermoelements. Keywords: solid solutions, scattering mechanisms, three-phonon processes, thermoelectric efficiency.
Contribution of the distributed Peltier effect to the efficiency of the thermoelectric cooler branch
Authors: Markov O.I.
Published: September 2022

An attempt is made to calculate the contribution of the distributed Peltier effect to the efficiency of the branch of the thermoelement Z for various types of impurity distribution. For this purpose, the boundary problem of thermal balance in the branch of the thermoelectric element was solved numerically, taking into account the distributed Peltier effect. The case of non-degenerate charge carriers was considered within the framework of the standard two-band model. The parameters of charge carriers were selected close to thermoelectrics based on bismuth and antimony tellurides. As the calculation in the framework of the two-zone model showed, the use of the distributed Peltier effect leads only to partial absorption of Joule heat, which contributes to an increase in the overall efficiency of the branch. In this case, the Z parameter along a significant part of the branch takes values significantly less than the maximum value. Keywords: thermoelement, Peltier effect, thermoelectric efficiency parameter, standard two-zone model.
Peculiarities of magnetic oscillations in HgSe monocrystal with Co impurities of low concentration (<1 at%)
Authors: Veinger A. I.  , Kochman  I. V.  , Okulov V. .  , Govorkova T. E.
Published: September 2022

The results of experimental studies of magnetoresistance oscillations are described for a HgSe monocrystal with Co impurities of low concentration (<1 at%). It has been discovered that at such impurity concentrations (~1018 cm-3) there exists two types of magnetic oscillations: Shubnikov de Haas oscillations at low temperatures (T<10 K) and magnetophonon oscillations at higher temperatures (T>10 K). The first ones are caused by the interaction of electrons with magnetic fieled inside of a Landau sublevel and the latter --- by the interaction with longitudinal optical phonons. The differences of these oscillations are characterized. A hypothesis of a nature of magnetophonon oscillations in such structures is proposed. Keywords: 3d-impurities of low concentration, zero-gap semiconductors, magnetophonon oscillations, SdH oscillations, optical and acoustic phonons.
Torque transfer to conductive particle using the Lorentz force
Authors: Grachev A.I.
Published: September 2022

In the paper the concept of conductive particle rotation in DC electric field with including the Lorentz force providing generation of electric dipole moment of the particle is for the first time discussed. Some models of the torque transfer to spherical and cylindrical particles based on of the Hall effect at usual geometry and with additional electric field application and also in the case of implementation of the photoelectromagnetic effect are presented. Keywords: Lorentz force, Hall effect, electric dipole, torque.
Effect of annealing atmosphere on the luminescence characteristics of CVD-ZnSe
Authors: Kalinushkin V. P.  , Gladilin A. A.  , Uvarov O. V.  , Mironov S. A.  , Chapnin V. A.  , Studenikin M. I.  , Il’ichev N. N.  , Gavrishchuk E. M.  , Rodin S. A.  , Timofeeva N. A.
Published: September 2022

The influence of the atmosphere of CVD-ZnSe annealing carried out in modes close to the procedure of their doping with iron on the luminescent characteristics of these crystals is investigated. It was found that annealing in the atmosphere of argon and selenium leads to a qualitative change in the impurity-defect composition and to a complex spatial distribution of the luminescent characteristics of CVD-ZnSe, especially in the crystal region at a distance of up to 400 microns from the surface. In the case of annealing in zinc, the luminescent characteristics are more uniform, with the exception of the near-surface zone with a width of about 100 microns, which has a high luminescence intensity in the entire spectral range under study (0.44-0.72 microns). The obtained results are interpreted on the basis of the assumption about the evaporation of zinc during annealing in argon and selenium. Based on the analysis of the spatial distribution of luminescence, assumptions are made about the nature of the observed impurity-defect centers. Keywords: two-photon confocal microscopy, CVD-ZnSe, impurity-defect composition, high temperature annealing.
31
Authors: Suslov A. V.  , Gerega V. A.  , Grabov V. M.  , Demidov E. V.  , Komarov V. A.
Published: September 2022

The results of a study of the semimetal films deformation produced by dome bending of the substrate are presented. Deformation control was carried out by means of X-ray diffraction analysis. It is shown that the dome bending method can be used to study films under planar deformation in a film-substrate system with different thermal expansion coefficients. The maximum in-plane deformation for bismuth films of 1 mkm
thickness order was found. It was shown that the deformation created by the dome bending of the substrate in combination with the use of substrates with different temperature expansion makes it possible to obtain a relative in-plane deformation of bismuth films up to 0.8% at 300 K.
Microstructure and phase composition of an alloy of iron and chrome disilicides
Authors: Suvorova E. I.  , Solomkin F. Yu.  , Arkharova N. A.  , Sharenkova N. V.  , Isachenko G. N.
Published: September 2022

The phase composition, microstructure, and interphase interfaces of the disordered CrSi2-FeSi2 solid solution obtained by spontaneous crystallization (before and after annealing) have been investigated by scanning, transmission electron microscopy, electron diffraction, and X-ray energy dispersive spectrometry. The as-grown samples contained the phases of CrSi2 with the P6422 hexagonal structure and FeSi2 with the P4/mmm tetragonal structure. Annealing of the samples led to the phase transformation of tetragonal FeSi2 into the orthorhombic modification Cmca. Precipitates of cubic iron monosilicide FeSi with space group P213, nano-precipitates of Si and silicon silicide Cr5Si3 with a tetragonal structure I4/mcm were observed inside the FeSi2 grains. Impurities of interstitial Cr atoms with a concentration up to 2.0 at% are found in iron (di)silicides grains in all samples. The structure of the CrSi2 phase remains unchanged after annealing; the concentration of impurity iron atoms is about 0.7 at%. Orientation relationships between the crystal lattices of the phases are established and strains due to the mismatch of the crystal lattices are determined. Keywords: chromium disilicide, iron disilicide, interphase interfaces, transmission electron microscopy, energy dispersive X-ray spectrometry.
9740
Authors: Tyschenko I. E.  , Khmelnitsky R. A.  , Saraykin V. V.  , Volodin V. A.  , Popov V. P.
Published: September 2022

The Ge diffusivity from the buried SiO2 layer of
silicon-on-insulator structure as a function of annealing temper-
ature was studied. It was shown that at an annealing temperature
below 900◦C, almost all Ge is localized in the implantation region
in the SiO2 layer. As annealing temperature reached 1100◦ C,
the migration of ion-implanted Ge is accompanied by several
processes: diffusion in SiO2, accumulation at the Si/SiO2 interface,
diffusion into Si as well as evaporation from silicon. The Ge
diffuses from SiO2 to the bonding interface of the silicon-on-insu-
lator structure with the diffusion coefficient of ∼ 2 · 10−15 cm2/s
that is two orders of magnitude higher than its equilibrium value.
Depending on the thickness of the silicon layer, the formation of
the Ge or SiGe phase after annealing at a temperature of 1100◦C
was detected.
Electron states of atoms in monolayers adsorbed on silicon carbide
Authors: Davydov S. Yu.  , Posrednik O. V.
Published: September 2022

Estimates of charge transfer between adsorbate monolayer and SiC substrate based on account of the dipole-dipole repulsion and exchange interactions are presented. It is demonstrated that all the interaction channels lead to adlayer depolarization. Role of the band and local adatoms states are analyzed. Methods of experimental verification of the obtained results are proposed. Keywords: dipole-dipole interaction, direct and indirect exchange couplings.