bluuebunny/crossref_metadata_2025 huggingface dataset:
ВЫБОР ОБОРУДОВАНИЯ ДЛЯ РЕШЕНИЯ ИЗМЕРИТЕЛЬНЫХ ЗАДАЧ
Authors: Белоусов А. , Архипов И.
Published: April 2021

Рассмотрены измерительные системы, которые позволяют контролировать геометрические параметры на степень износа и годность используемых ручных средств измерений и средств допускового контроля.
УВЕЛИЧЕНИЕ ДАЛЬНОСТИ ОБНАРУЖЕНИЯ ОБЪЕКТОВ ЛИДАРОМ С ПРИМЕНЕНИЕМ МЕТОДА СЛЕЖЕНИЯ
Authors: Йеллепедди А.
Published: April 2021

Важнейшим параметром лидара является дальность обнаружения объектов, от которого зависит безопасность автомобиля. В статье описан эффективный метод улучшения характеристик лидара, позволяющий повысить качество обнаружения объектов и надежность системы.
Opinión de estudiantes de Odontología sobre mentorías como preparación para la clínica
Authors: Espinoza Droguett Daniela , Segura Solano Cristina , Navarro Hernández Nancy
Published: April 2021

Introducción: La mentoría es el proceso en el cual una persona experimentada (mentor) guía a otra (mentoreado), con el objetivo de mejorar sus habilidades y/o conocimientos, para desarrollar sus capacidades profesionales. Se implementó el Programa de Mentorías previo y durante el inicio de asignaturas clínicas de la carrera de Odontología de la Universidad Austral de Chile.Objetivo: Conocer la opinión de los estudiantes que participaron, respecto al desarrollo del Programa.Método: Se realizó un estudio enmarcado en el paradigma cualitativo, a través de un estudio de caso intrínseco. El muestreo fue no probabilístico, intencionado, por criterio, conformado por 20 estudiantes. La recolección de datos fue mediante 8 entrevistas en profundidad y 2 grupos focales de 6 estudiantes cada uno. El análisis de datos se realizó por método de comparación constante de Glaser y Strauss, siguiendo la secuencia de Miles y Huberman: reducción de datos, disposición/transformación y obtención/verificación de conclusiones, y se utilizó el programa Atlas Ti como recurso computacional.Resultados: Se identificaron 403 unidades de significado, 24 categorías descriptivas, agrupadas en 9 metacategorías, emergiendo 3 dominios “significado de las mentorías”, “relación mentor-mentoreado”, “factores influyentes en el desarrollo del programa”.Conclusiones: El programa para la mayoría de los mentoreados fue significativo y beneficioso en los ámbitos académicos, profesional y personal, aumentando su autoconfianza. También evidenció una transición en la relación docente/estudiante, de una lejana a un vínculo cercano, de acompañamiento y guía constante. Ellos hubiesen esperado un acompañamiento permanente en todo el ciclo clínico y sugieren que los docentes participantes tengan formación pedagógica.
Aprendizaje autorregulado en médicos de pregrado en época de COVID-19
Authors: García-Montalvo Iván Antonio
Published: April 2021

Introducción: El aprendizaje autorregulado se identifica como un proceso activo, independiente, autónomo, crítico, adaptativo, reflexivo y estratégico, para lograr una formación integral, superación continua, autodeterminación, autonomía y actualización permanente.Objetivo: El objetivo de este trabajo fue el de analizar las estrategias de autorregulación de los estudiantes de pregrado durante la pandemia por COVID-19 adscritos a la Facultad de Medicina y Cirugía de la Universidad Regional Sureste para el ciclo lectivo 2020-A.Método: Se trata de un estudio descriptivo-transversal, la muestra se obtuvo mediante un muestreo aleatorio simple entre estudiantes de primero a quinto año, con sustitución de elementos de exclusión, el instrumento utilizado fue el cuestionario Torre adaptado (2007) y validado para este estudio.Resultados: Los sujetos de estudio demostraron una adecuada conciencia, control y verificación metacognitiva, además de tener un procesamiento activo durante las clases virtuales; sin embargo, presentan poco esfuerzo en la realización de las tareas, lo que nos lleva a establecer recomendaciones para la práctica educativa que refuerce sobre todo la enseñanza en el ámbito universitario de las ciencias de la salud.Conclusiones: El 70% de los estudiantes de pregrado de la Facultad de Medicina y Cirugía de la Universidad Regional del Sureste, se consideran autorreguladores en su proceso de aprendizaje durante este confinamiento derivado por la pandemia.
La evaluación de la competencia clínica a través de un Web-ECOE: una experiencia de aplicación
Authors: Rivero-López Carlos Alonso , Vega-Rodríguez Magali Fabiola , Yap-Campos Kweilan , Jiménez-Galván Irma , Ponce-Rosas Efrén Raúl , Martínez-González Adrián
Published: April 2021

Introducción: La pandemia ocasionada por el SARS-Cov-2 ha modificado la enseñanza de la medicina. El Examen Clínico Objetivo Estructurado (ECOE), es una de las estrategias que cuenta con mayor evidencia de validez para evaluar la competencia clínica; sin embargo, en México no hay experiencia en aplicarla a distancia (Web-ECOE).Objetivo: Evaluar el grado de competencia clínica de los médicos residentes de primer año de la especialidad de medicina familiar a través de un Web-ECOE comparando la procedencia de ingreso (ENARM vs ECA) y acorde con los resultados poder implementar esta evaluación a distancia.Método: Estudio observacional comparativo. La población estuvo compuesta de 20 médicos residentes, se conformaron dos grupos, 10 provenientes del ENARM y 10 del ECA, de diversas instituciones de salud reconocidas por la Subdivisión de Medicina Familiar de la UNAM. El instrumento utilizado fue un Web-ECOE de 4 estaciones.Resultados: Los residentes de primer año de medicina familiar muestran en general un grado aceptable de competencia clínica en cuatro enfermedades frecuentes de la consulta médica en el primer nivel de atención. Las puntuaciones mayores fueron para las estaciones de diabetes mellitus e hipertensión arterial; y las de menor puntuación, depresión y obesidad. Los residentes del programa ENARM tienen tendencia a obtener mayores puntuaciones que los residentes del programa ECA.Conclusiones: Los residentes provenientes del ENARM tuvieron mejores puntuaciones en las competencias clínicas que los residentes del ECA. Realizar un Web-ECOE permitió evaluar la competencia clínica de los residentes. Se recomienda continuar con el uso del Web-ECOE en los programas de posgrado para evaluar la competencia clínica en forma más integral.
A PULSATING FLARE STAR IN THE NEW PLANETARY SYSTEM: KOI-258
Authors: Yoldaş E. , Dal H. A.
Published: April 2021

We present findings about the nature of KOI-258. Its temperature was found to be 6500 ± 200 K from its spectrum, which also indicates that the target is a single main sequence star despite the existence of a radial velocity variation with a small amplitude. Ca II H, K lines indicate the existence of magnetic activity, though there is no remarkable excess or variation in the Hα line. We found 51 flares with a frequency of 0.00186 h−1, whose plateau value is 0.659 s. Apart from the flares, we found 420 frequencies due to solar-like oscillations at out-of-eclipses. Removing these 420 frequencies, we demonstrated three different transits caused by three exo-planets. Their radii were found to be 2.33 R_⊕ for the first planet, 0.53 R_⊕ for the second one, and 1.15 R_⊕ for the third planet. Consequently, KOI-258 is an oscillating, single, main sequence star, with in a planetary system and remarkable flare activity.
COMPARATIVE ANALYSIS OF SKY QUALITY AND METEOROLOGICAL VARIABLES DURING THE TOTAL LUNAR ECLIPSE ON 14-15 APRIL 2014 AND THEIR EFFECT ON QUALITATIVE MEASUREMENTS OF THE BORTLE SCALE
Authors: Góez Therán C. , Vargas Domínguez S.
Published: April 2021

A total lunar eclipse plausibly has an influence on the variation of some environmental physical parameters, specifically on the conditions of the sky brightness, humidity and temperature. During the eclipse on 14th - 15th April 2014, these parameters were measured with a photometer and a weather station. The obtained results allow the comparison, practically, of the optimal conditions for observational astronomy work in the Tatacoa desert and, therefore, to certify it as suitable place to develop night sky astronomical observations. This investigation determined, to some extent, the suitability of this place to carry out astronomical work and research within the optical range. Thus, the changes recorded during the astronomical phenomenon allowed the classification of the sky based on the Bortle Scale.
X-RAY FLUX AND SPECTRAL VARIABILITY OF BL LACERTAE OBJECTS MRK 421, MRK 501, AND 1ES1426+428 WITH SUZAKU SATELLITE
Authors: Saad A. Ata , Nasser Ahmed M. , Abdelbar Ahmed M. , Beheary M. M
Published: April 2021

We present a detailed spectral study of Suzaku observations of three blazars (Mrk 421, Mrk 501, and 1ES1426+428). The X-ray properties of our sample are derived by extracting the BL Lacertae sample spectra, and fitted by five models. The fit was in the soft X-ray band (0.8 - 10.0 keV). These models give similar results. By comparing the fits from the different models, we find that the (zbremss+zpowerlw) model is the best one to represent the data. An F-test is applied to compare the (zbremss+zpowerlw) model with the simple one zpower law. To test the X-ray variability of our BL Lacertae sample, we fit their spectra extracted from the same instrument with the same procedure by the same model to estimate their X-ray flux and luminosity. The estimated fluxes are compared to check their variability. We find that the flux variability ranges are 3.06, 0.12, 0.37 × 10−10 erg s−1 cm−2 for Mrk 421, Mrk 501, and 1ES1426+428, respectively.
ASYMPTOTIC INTERNAL WORKING SURFACES OF PERIODICALLY VARIABLE JETS
Authors: Raga A. C. , Cantó J. , Castellanos-Ramírez A.
Published: April 2021

We present a derivation based on the “center of mass formalism”; of the asymptotic behaviour of internal working surfaces produced in a variable HerbigHaro (HH) jet. We obtain the general solution for an arbitrary periodic ejection time-variability, and then show examples for a limited set of functional forms for the velocity and density time-evolutions. Finally, we derive a prescription for obtaining the time-averaged mass loss rate from observations of knots along an HH jet (based on the asymptotic solution), and apply it to derive the mass loss rate of the HH 1 jet.
CONNECTING THE FORMATION OF STARS AND PLANETS. II: COUPLING THE ANGULAR MOMENTUM OF STARS WITH THE ANGULAR MOMENTUM OF PLANETS
Authors: Flor-Torres L. M. , Coziol R. , Schröder K.-P. , Jack D. , Schmitt J. H. M. M.
Published: April 2021

A sample of 46 stars, host of exoplanets, is used to search for a connection between their formation process and the formation of the planets rotating around them. Separating our sample into two, stars hosting high-mass exoplanets (HMEs) and low-mass exoplanets (LMEs), we found the former to be more massive and to rotate faster than the latter. We also found the HMEs to have higher orbital angular momentum than the LMEs and to have lost more angular momentum through migration. These results are consistent with the view that the more massive the star and the higher its rotation, the more massive was its protoplanetarys disk and rotation, and the more efficient was the extraction of angular momentum from the planets.
Pengembangan program psikoedukasi untuk mengelola stres, cemas, dan depresi pada mahasiswa yang sedang menempuh skripsi
Authors: Anwar Zainul , Djudiyah Djudiyah
Published: April 2021

Some students, working on a thesis is a ”scourge” because they have to do it themselves and interact personallywith other people. This is where students sometimes feel depressed, anxious, and depressed because of the variousproblems they face. One of the strategies used is to provide psychoeducation programs that are relevant to theproblem. The research objective is to find a problem and a psychoeducation model for that problem. The researchmethod used is descriptive quantitative, the subject was taken purposively as many as 63 respondents and descriptiveanalysis. The results found includes: (a) The main problems are communication with supervisors, self-management andtime, looking for references, low motivation, writing a thesis according to APA Style, and economic and family issues,and (b) Psychoeducation program model with achievement motivation training material, persuasive communicationtraining, training program applications quotes, and especially for those who need special treatment, the counseling orpsychotherapy process is carried out individually.
Visualization of road networks remote sensing data for environmental monitoring and socio-environmental analysis of road surface impacts
Authors: Chelnokov V.V. , Meshalkin V.P. , Strelkov S.P. , Kondrashin K.G.
Published: April 2021

The analysis of changing the volume of urban cargo flows under conditions of the city transport and road complex development is made, and its danger to the environment is determined. The method of decoding satellite images at different times and cartographic processing the data were applied, the result of which is a simplified and accessible form of visualization and recording a number of changes in road transport networks. In particular, this method enables creating an algorithm for predicting changes in roads and identifying the most dangerous sources of pollution in large-scale urban areas. Chemical analysis of sweep-off samples taken in 2019 for the period of spring cleaning of roads in the city of Astrakhan, in the neighbourhood of people mass gatherings, according to the required indicators was carried out. An algorithm to identify correlations between the content of pollutants in road estimates and anomalies in the intensity of traffic, the choice of chemical reagents used, etc. was developed. As a result of the research, the urgent need for environmental monitoring of the roadbed with recording the results in the database of geo-information systems was identified.
The mystery of Copernicus’ star catalogue (Part III)
Authors: Tolchelnikova S.A.
Published: April 2021

The author of “The Catalog of Zodiac signs and stars” published in De Revolutionibus, was Ptolemy. Copernicus used this catalog and all available observations of the Sun, Moon and planets, for improvement of the theory and tables of their motions. E. P. Fedorov wants to support with the authoritative opinion of Copernicus the idea of replacing the main optic reference frame to radio system JCRF. Having mastered the experience of previous generations Copernicus knew that the principles of establishing coordinate systems do not change along with opinions on the structure of the universe. Had the places of stars in catalogs not been dependent on the location of the Sun, Copernicus would have had no opportunity to prepare the time and coordinate systems required for solution of his problem. In his manuscript he preserved the idea the principles of compiling star catalogs, which were not included in the published edition along with excerpts from the originally conceived chapters. The words irrefutably prove that the idea of establishing the main reference system from VLBJ observations without the place of vernal equinox could not be supported by reference to Copernicus`s opinion.
O USO DA REALIDADE VIRTUAL NO PROCESSO DE ENSINO-APRENDIZAGEM DA REAÇÃO DE COMBUSTÃO
Authors: Nunes Renata Cristina , Furtado Priscila Garcia Ribeiro
Published: April 2021

A partir da notória revolução tecnológica que temos vivido e da inserção dessas tecnologias no cotidiano de grande parte da população, tem se tornado inevitável uma reflexão sobre como estas podem ser utilizadas no processo de ensino-aprendizagem no ambiente escolar.  Uma das empresas que têm investido em tecnologias destinadas à educação é o Google. Tecnologias estas que vão desde plataformas que facilitam a comunicação do professor com alunos até aplicativos que colaboram com a aprendizagem do estudante dentro e fora da sala de aula. Dentre as tecnologias que têm se destacado estão os óculos de realidade virtual que proporcionam ao usuário a sensação de imersão no conteúdo que ele está visualizando, que foram desenvolvidos para serem utilizados em sala de aula. Este artigo tem o objetivo de analisar a utilização da realidade virtual através do Google CardBoard e do aplicativo Google Expedições. Os dados foram coletados durante as aulas sobre combustão utilizando as tecnologias em questão. Foram aplicados questionários contendo perguntas objetivas e dissertativas antes e após essas aulas. Participaram da atividade 18 alunos do 1º e 3º anos do Ensino Médio dos cursos técnicos integrados ao Médio de Hospedagem e Petróleo e Gás. Além disso, preencheram uma pesquisa a respeito do perfil de utilização do celular e internet. Os resultados mostraram que houve uma melhora significativa na compreensão do conteúdo após as aulas utilizando a realidade virtual; logo, a tecnologia empregada mostrou-se muito eficaz no processo de aprendizagem. O uso das tecnologias como ferramentas pedagógicas aproxima a escola do universo dos alunos nativos digitais, o que pode tornar o processo de ensino-aprendizagem mais atrativo e, no caso da Química, menos abstrato.
UMA SEQUÊNCIA DIDÁTICA PARA A PERCEPÇÃO DE CONTROVÉRSIAS EM SALA DE AULA: PREPARANDO PROFESSORES
Authors: Veneu Fernanda Azevedo , Rocha Marcelo Borges
Published: April 2021

O objetivo desta pesquisa foi desenvolver e aplicar uma sequência didática como forma de sensibilizar os docentes sobre a importância de inserir controvérsias da ciência e na ciência em sala de aula. Esta sequência foi aplicada durante uma disciplina eletiva de pós-graduação em Ciências, Tecnologia e Educação de uma instituição federal na cidade do Rio de Janeiro (RJ). A disciplina teve nove professores dos diversos segmentos de ensino como participantes, sendo eles não apenas do Rio de Janeiro, mas também de outros estados. Todas as atividades foram presenciais. Com este estudo, foi possível oferecer aos professores oportunidades de aprofundamento teórico sobre o tema e momentos de reflexão sobre suas práticas. Como forma de proporcionar uma discussão mais ampla sobre a inclusão das controvérsias em sala de aula, foram trabalhados materiais diversos, tais como recursos audiovisuais, artigos científicos e textos de divulgação científica. Como resultados desta pesquisa, destacamos a importância de se pensar em mais momentos práticos que contribuam para a formação continuada de professores. No caso das controvérsias, observou-se que alguns professores ainda não se sentem seguros para trabalhar um tema que, em muitos momentos, não está explícito nos conteúdos curriculares. Assim, recomenda-se que mais propostas como esta sejam incentivadas.
BIOMAS BRASILEIROS: A LUDICIDADE DE FORMA SIGNIFICATIVA POR MEIO DO JOGO DA AMARELINHA
Authors: Cunha Elisangela Souza , Vieira Valéria
Published: April 2021

Para que na atualidade, marcada pela presença de artefatos tecnológicos, a aprendizagem de conteúdos se torne efetiva e significativa, é necessário que o ensino se reinvente. A inserção da ludicidade por meio de materiais potencialmente significativos podem ser uma das soluções para a construção de novos conhecimentos, alicerçados na aquisição de conceitos científicos, sem perder o prazer em aprender. O jogo pode representar uma atividade dinâmica e construtiva de conhecimentos, podendo ampliar cada vez mais o contexto cognitivo dos discentes. Esse trabalho teve como objetivo reforçar conceitos importantes sobre Biomas brasileiros de forma dinâmica, tendo como proposta uma atividade lúdica que não gere competições e acirramentos entre as equipes, e, que torne significativa a aprendizagem. Este trabalho é o relato de uma experiência docente de caráter descritivo, embasado na observação sistemática em sala de aula, tendo como metodologia de análise uma abordagem qualitativa do tipo participativa. Os participantes foram alunos das turmas do 7º ano do Ensino Fundamental de um colégio militar da cidade do Rio de Janeiro. Uma diversidade de atividades foi oferecida a este público, como seminários, palestras, oficinas, no intuito de adquirirem embasamento teórico para atuarem na atividade lúdica que seria posteriormente proposta, um jogo, sobre Biomas brasileiros. O jogo oferecia um tabuleiro no formato de amarelinha com dozes casas, duas imagens referentes a cada um dos biomas, sendo considerados, ao todo, seis biomas; continha 60 cartas de perguntas conceituais para esses biomas. Os alunos participantes demonstraram satisfação em relação ao contexto apresentado, o que faz as autoras considerarem que o jogo atingiu a meta de ensino, estimulando os alunos a seguirem sem medo de errar. O jogo por ser cooperativo, estabeleceu uma relação de jogar sem se preocupar em ganhar, pois a intenção era chegar ao céu, respeitando o tempo que foi estipulado pela docente, além disso foi satisfatório, tendo atingido a aquisição de conceitos e construção de conhecimentos significativos.
DOUTORADO PROFISSIONAL – DESAFIOS DA IMPLANTAÇÃO DOS QUATRO PRIMEIROS CURSOS DA ÁREA DE ENSINO
Authors: Curi Edda , Gazire Eliane Scheid , Rôças Giselle , Rizzatti Ivanise Maria , Alves João Amadeus Pereira , De Oliveira Maria Cristina Araújo , Quartieri Marli Teresinha , Domingues Robson José de Souza
Published: April 2021

Neste relato de experiência, buscou-se explicitar as ações em quatro programas de pós-graduação stricto sensu, em nível de Doutorado Profissional, de instituições distintas e que se encontram em fase inicial de desenvolvimento. Foram pesquisadas as especificidades do produto educacional, do acompanhamento da prática profissional, do perfil do egresso e a produção intelectual pretendida pelos programas. Entende-se que o doutorado profissional na área de ensino contribuirá para formar um profissional pesquisador capaz de intervir em seu campo de atuação com habilidade em identificar problemas, retomar os passos metodológicos realizados no decorrer do processo de pesquisa, além da possibilidade de ampliar suas ações de inserção social na educação.
Um século de Alberto Guerreiro Ramos – teórico das organizações
Authors: Juliano Rosane Aurore Romao , Juliano Rani Aurore , Juliano Filipe Romão
Published: April 2021

Este trabalho visa conhecer o homem e o pensador Alberto Guerreiro Ramos, poeta, sociólogo, advogado, administrador, professor, político, jornalista, e a importância de sua Teoria Organizacional. Busca dar uma visão inicial aos acadêmicos e chegar aos mais diversos e plurais públicos de nosso país, aumentando, assim, a visibilidade de seu pensamento e de suas obras, visto ser um importante intelectual brasileiro, reconhecido mundialmente, porém, ainda pouco conhecido em nosso país. Nesse sentido, realizou-se uma pesquisa bibliográfica, elencando algumas de suas obras, dentre sua vasta produção, como: A redução sociológica, A nova ciência das organizações, Administração e contexto brasileiro, O drama de ser dois, Introdução crítica à sociologia brasileira, Patologia “social” do branco brasileiro. Neste estudo, também foram incluídos artigos de estudiosos de Guerreiro Ramos, além de estudos realizados por instituições como o Centro de Pesquisa e Documentação de História Contemporânea do Brasil da Fundação Getúlio Vargas (FGV-CPDOC), que analisou a Teoria das Organizações de Guerreiro Ramos. Por meio deste trabalho, foi demonstrada a relevância de sua construção teórica, ratificando a sua contemporaneidade e, assim, o quanto ele estava à frente de seu tempo. Conclui-se, também, que há ainda muitos campos a serem desvendados e muito a se fazer “em mangas de camisa”.
Temporal Trends in Prognosis of Patients with Acute Coronary Syndrome Complicated by Ventricular Tachyarrhythmia
Authors: Yahud Ella , Farkash Avishag Laish , Shlomo Nir , Fink Noam , Goldenberg Ilan , Lev Eli I. , Asher Elad
Published: April 2021

Objectives: To evaluate clinical characteristics and prognosis of
patients presented with ventricular tachyarrhythmia (VTA) during the
course of acute coronary syndrome (ACS) and to analyze it according to
period of presentation. Background: VTA is an infrequent yet serious
complication of ACS. There is limited data regarding the incidence and
prognostic implications of VTA in the last decade as compared with the
previous decade. Methods: We evaluated clinical characteristics, major
adverse cardiovascular events, short and long- term mortality of
patients hospitalized with ACS who were enrolled in the Acute Coronary
Syndrome Israeli Survey (ACSIS) during the years 2000-2016. Patients
were classified into three groups: no VTA, early VTA (≤48h of onset) and
late VTA (>48h of onset). Data were analyzed according to
decades of presentation (current decade vs. previous decade). Results:
The study population comprised 15,200 patients. VTA occurred in 487
(3.2%) of patients. Early VTA presented in 373/487 (77%) patients and
late VTA in 114/487 (23%) patients. VTA’s, occurring in ACS patients
were associated with increased risk of in-hospital, 30-days, 1-year and
5-year mortality rates during both early and late periods in compared
with no VTA. Moreover, late VTA was associated with the highest
mortality rate with up to 65% in 5-year follow up (p<0.001).
Nevertheless, late VTA was associated with lower mortality rate in the
current decade (2008-2016) compared with last decade (2000-2006).
Conclusions: Any VTA following ACS was associated with high short and
long-term mortality rate. However, over the past decade there has been a
significant improvement in survival rates, especially in patients with
late VTA. This may be attributed to early and invasive reperfusion
therapy, implantable cardioverter defibrillator implantation and better
medical treatment.
Simplified calculation method for coupled thermal--mechanical stress of drum using beam elements
Authors: Li yanjun , Zhang zhenhua , Zeng qingpeng , Li chenshuo , Shi jianxin , Zhang guolei
Published: April 2021

The drum is the core part of a supercharged boiler that is prone to
fatigue damage due to the dual action of thermal and mechanical stress.
However, owing to its complex structure, complete modeling calculation
of the drum requires considerable computational resources. Therefore,
based on the basic theory of beam elements, we propose a simplified
method using beam elements in place of solid tubes and evaluate the
feasibility of this method. The results demonstrate that the simplified
method reduced the overall mesh number of the model by 67.19% and the
calculation time by 68.08%. Moreover, compared to the solid model, the
maximum relative errors of stress and displacement were only 3.44% and
5.16%. Considering the dispersion of low-cycle fatigue life, we applied
a statistical approach to the fatigue life assessment of the drum, and
obtained the probability of failure corresponding to the fatigue life of
the drum under the given operating conditions. This method provides an
important basis for the systematic evaluation of fatigue life under
various operating conditions and the prediction of failure occurrence.
Comparative evaluation of paranasal sinus volumes between maxillary deficiency requiring Le Fort osteotomy patients and control patients
Authors: BOZKURT Poyzan , Orhan Kaan , VURAL Çağıl
Published: April 2021

Introduction: The anatomy of the paranasal sinuses is important for many
surgeon groups. The precise knowledge of such structures with variable
anatomy will be important for the preservation of these structures and
the management of complications in surgeries such as endoscopic sinus
surgery and osteotomies involving the maxilla. Objective: The purpose of
the present study is to investigate volumetric differences between
ethmoid, sphenoid and maxillary sinus volumes in patients with maxillary
deficiency requiring Le Fort osteotomy and healthy patients, by
employing computed tomography imaging. Methods: Computed tomography
scans of 120 patients (59 maxillary deficiency patients and 61 control
patients) were included in the study. Images were processed, the
paranasal sinuses were sculpted out from 3D images and measured. All
measurements were taken twice by the same observers. The observers
performed the study twice with an interval of 2 weeks to detect
intra-observer variability. Results: Ethmoid and left and right
maxillary sinus volumes were smaller in the Le Fort group, although no
differences were observed for sphenoid sinus volumes. Conclusion:
Paranasal sinus volumes varied between maxillary deficiency patients and
control patients. This condition may be crucial for the surgeon
operating in these areas and should be taken into consideration during
surgeries.
The United Kingdom Thyroid Multi-Disciplinary Team; a National Survey of Services and Comparison to Guidelines.
Authors: Selwyn Anya , Davis Jeremy , Hone Robert
Published: April 2021

Key Points: 1. We have identified ambiguity in the current guidance on
thyroid MDT’s, and have also found nationwide variation in compliance
with this. 2. We recommend: a. All surgeons undertaking thyroid surgery
should complete a minimum of 20 thyroid procedures per year, and this
should also form part of surgeons’ annual appraisal. b. All surgeons
should contribute data to UKRETS (unless prevented by local legal
frameworks) and this should form part of surgeons’ annual appraisal and
be audited by individual MDT’s and regional cancer networks. c. Thyroid
MDT’s should be held weekly where possible, with a minimum frequency of
fortnightly. d. The core membership of a thyroid MDT (stand alone and
joint) should include thyroid surgeons, specialist radiology,
endocrinology, nuclear medicine, nurse specialists, histopathology +/-
cytology and clinical oncology.
Cardiovascular findings in Echocardiography in post Covid-19 mild infection population in Argentina
Authors: Bianqui Carolina Torres , Cueto Abigail , Soto Romina , Urbano Pablo , Amenabar Agustina , Carnevalini Mariana , Tonetti Luciana , Deschle Hector
Published: April 2021

Objectives: The aim of this study was to assess differences in
echocardiographic findings between a normal adult and a post Covid-19
population. Background: Coronavirus disease (Covid-19) is known to
produce a systemic inflammatory syndrome, with pulmonary and cardiac
involvement. However, the cardiovascular impact in patients with mild
clinical forms of the disease is uncertain. There is small evidence
supporting the finding of global ventricular longitudinal strain (GLS)
alterations in these patients. Methods: One hundred and five consecutive
patients admitted to an ambulatory care center, underwent a conventional
transthoracic echocardiographic (TTE) study with acquisition of GLS.
Patients were included if they underwent a positive diagnostic reverse
transcriptase polymerase chain reaction (PCR) test, having no relevant
preexisting conditions, with exception of obesity. Demographic and
clinical data were prospectively obtained. For this purpose, we
considered a normal cut off point of -17,09%, based on previous
studies. Echocardiographic findings were compared with those of 67
healthy individuals. Results: Out of 172 patients, 105 correspond to
Covid-19 group, and 67 to healthy individuals. There were no significant
differences in GLS regarding age, left ventricular mass index (LVMI) and
E/e’ ratio. The multivariate analysis showed that the percentage of
patients with pathological GLS values was significantly higher within
the Covid-19 and male groups (OR 6.02 IC 1.88-22.57; p 0.004 and OR 3.17
IC 1.03-10.50; p 0.05, respectively). Conclusion: These data support
that Covid-19 infection could affect ventricular GLS and encourage the
use of conventional TTE with GLS measurements in patients with
non-significant forms of the disease.
Alexithymia and physical outcomes in psychosomatic subjects: a cross-sectional study
Authors: Myles Liam , Merlo Emanuele
Published: April 2021

Backgrounds. Alexithymia is a relevant phenomenon, occurring transversally to healthy subjects and individuals affected by several conditions. Its role is considerable, according to current state of the art several conditions emerged as influenced, maintained and worsened by alexithymic structures and figures. The present study was aimed at highlighting the existing relations, the differences and the directions assumed by alexithymic factors and health status in patients affected by psychosomatic conditions. Methods. The sample consisted of 150 participants, 42 males (28.0%) and 108 females (72.0%), aged 26 to 78 years old with a mean of 42.24 years old (SD = 12.39). Subjects were previously assessed through DCPR-SI, in order to identify psychosomatic issues. The study evaluated measures related to alexithymia (Tas-20) and health status (SF-36), and considered demographic characteristics such as age, gender, and education. Results and Conclusions. The analyses demonstrated a number of significant relationships between alexithymia, psychological outcomes, and physical outcomes, including psychosomatic disorders. In addition, sex differences were found in gastrointestinal outcomes, as well as outcomes related to energy/fatigue and physical functioning. The study of alexithymia may provide a fruitful approach in understanding various issues related to pathology and general health. Further studies are needed to expand the understanding of alexithymia to other groups and health-related outcomes.
Revista Geon Vol 4 No 2 julio diciembre 2017
Authors: GEON Revista
Published: April 2021

Revista Geon Vol 4 No 2 julio diciembre 2017  Revista Completa
Audit Office Labor Market Proximity and Audit Quality
Authors: Lee Gladys , Naiker Vic , Stewart Christopher R.
Published: April 2021

This study examines whether the audit quality of Big 4 audit firms is affected by an audit office's proximity to more target universities for appointing staff auditors. We identify these target universities using a recruitment map of a Big 4 audit firm and unique office-level hiring data hand-collected from LinkedIn. Our findings suggest that audit offices closer to more of their key feeder schools and universities with accredited business schools are associated with higher audit quality, as observed by a lower likelihood of financial accounting misstatements. Our results are robust across alternative measures of labor market proximity and audit quality, and to a battery of sensitivity tests, including controlling for client firms' proximity to universities. Overall, our results suggest that audit offices benefit from being proximate to more key suppliers of staff auditors.

JEL Classifications: M42; J21.
Brown Adipose Tissue Volume and Fat Content Are Positively Associated With Whole-Body Adiposity in Young Men—Not in Women
Authors: Sanchez-Delgado Guillermo , Martinez-Tellez Borja , Acosta Francisco M. , Virtue Samuel , Vidal-Puig Antonio , Gil Angel , Llamas-Elvira Jose M. , Ruiz Jonatan R.
Published: April 2021

Human brown adipose tissue (BAT) volume has consistently been claimed to be inversely associated with whole-body adiposity. However, recent advances in the assessment of human BAT suggest that previously reported associations may have been biased. The present cross-sectional study investigates the association of BAT volume, mean radiodensity, and 18F-fluorodeoxyglucose (18F-FDG) uptake (assessed via a static positron emission tomography [PET]–computed tomography [CT] scan after a 2-h personalized cold exposure) with whole-body adiposity (measured by DXA) in 126 young adults (42 men and 84 women; mean ± SD BMI 24.9 ± 4.7 kg/m2). BAT volume, but not 18F-FDG uptake, was positively associated with BMI, fat mass, and visceral adipose tissue (VAT) mass in men but not in women. These associations were independent of the date when the PET-CT was performed, insulin sensitivity, and body surface area. BAT mean radiodensity, an inverse proxy of BAT fat content, was negatively associated with BMI, fat mass, and VAT mass in men and in women. These results refute the widely held belief that human BAT volume is reduced in obese persons, at least in young adults, and suggest that it might even be the opposite in young men.
Autoantibodies Against Methylglyoxal-Modified Apolipoprotein B100 and ApoB100 Peptide Are Associated With Less Coronary Artery Atherosclerosis and Retinopathy in Long-Term Type 1 Diabetes
Authors: Sveen Kari Anne , Bech Holte Kristine , Svanteson Mona , Hanssen Kristian F. , Nilsson Jan , Bengtsson Eva , Julsrud Berg Tore
Published: April 2021

OBJECTIVE

Methylglyoxal (MGO), a reactive aldehyde forming advanced glycation end products (AGEs), is increased in diabetes and recognized by the immune system, resulting in anti-AGE–specific autoantibodies. The association of these immune responses with macro- and microvascular complications in type 1 diabetes remains unclarified. We investigated associations between MGO-modified apolipoprotein B100 (apoB100) and apoB100 peptide 5 (MGO-p5) autoantibodies and coronary atherosclerosis and retinopathy in type 1 diabetes.

RESEARCH DESIGN AND METHODS

IgM and IgG against MGO-apoB100 and MGO-p5 were measured by ELISA in plasma from 103 subjects with type 1 diabetes and 63 control subjects (Dialong study) and in a replication cohort of 27 subjects with type 1 diabetes (Oslo study). Coronary atherosclerosis was assessed by computed tomography coronary angiography or intravascular ultrasound. Retinopathy was classified by retinal photos.

RESULTS

MGO-apoB100 IgM and MGO-p5 IgM levels were higher in subjects with diabetes with no coronary artery stenosis compared with subjects with significant stenosis (median [interquartile range]: 96.2 arbitrary units [AU] [71–126.8] vs. 54 AU [36.1–85.4], P = 0.003 for MGO-apoB100; and 77.4 AU [58–106] vs. 36.9 AU [28.9–57.4], P = 0.005 for MGO-p5). MGO-apoB100 IgM and MGO-p5 IgM were associated with less severe coronary stenosis after adjusting for confounders (odds ratio 0.2 [95% CI 0.05–0.6], P = 0.01; and 0.22 [0.06–0.75], P = 0.02). The inverse association of MGO-p5 IgM and coronary stenosis was confirmed in the replication cohort. Subjects with proliferative retinopathy had significantly lower MGO-apoB100 IgM and MGO-p5 IgM than those with background retinopathy.

CONCLUSIONS

Autoantibodies against AGE-modified apoB100 are inversely associated with coronary atherosclerosis and proliferative retinopathy, suggesting vascular protective effects of these autoantibodies in type 1 diabetes.
Autoantibodies Against Methylglyoxal-Modified Apolipoprotein B100 and ApoB100 Peptide Are Associated With Less Coronary Artery Atherosclerosis and Retinopathy in Long-Term Type 1 Diabetes
Authors: Sveen Kari Anne , Holte Kristine Bech , Svanteson Mona , Hanssen Kristian F , Nilsson Jan , Bengtsson Eva , Berg Tore Julsrud
Published: April 2021

Objectives: Methylglyoxal
(MGO), a reactive aldehyde forming advanced glycation end products (AGEs), is increased in diabetes and recognized by the
immune system, resulting in anti-AGE-specific autoantibodies. The association
of these immune responses with macro-and microvascular complications in type 1
diabetes remains unclarified. We investigated associations between MGO-modified
ApoB100 and ApoB100 peptide (MGO-p5) autoantibodies and coronary
atherosclerosis and retinopathy in type 1 diabetes.

Research Design and Methods:
IgM and IgG against MGO-apoB100 and MGO-p5 were measured by ELISA in plasma
from 103 type 1 diabetessubjects and 63 controls (Dialong study) and in a
replication cohort of 27 type 1 diabetes
subjects (Oslo study). Coronary atherosclerosis was assessed by computer
tomography coronary angiography or
intravascular ultrasound. Retinopathy was classified by retinal photos.

Results: MGO-ApoB100 IgM
and MGO-p5 IgM levels were higher in diabetes subjects with no coronary artery
stenosis compared to subjects with significant stenosis (median (IQR): 96.2 AU
(71-126.8) vs. 54 AU (36.1-85.4), p=0.003 for MGO-ApoB100, and 77.4 AU (58-106)
vs 36.9 AU (28.9-57.4), p=0.005 for MGO-p5). MGO-ApoB100 IgM and MGO-p5 IgM
were associated with less severe coronary stenosis after adjusting for
confounders (odds ratio (95% CI): 0.2 (0.05-0.6), p=0.01
and 0.22 (0.06-0.75), p=0.02. The inverse association of MGO-p5 IgM and
coronary stenosis was confirmed in the replication cohort. Subjects with
proliferative retinopathy had significantly lower MGO-ApoB100 IgM and MGO-p5
IgM than those with background retinopathy.

Conclusions: Autoantibodies
against AGE-modified apoB100 are inversely associated with coronary atherosclerosis
and proliferative retinopathy,
suggesting vascular protective effects of these autoantibodies in type 1
diabetes.
Repülőgépek elektromos meghajtása – szükségszerűség kompromisszumokkal III. rész
Authors: Óvári Gyula , Fehér Krisztina
Published: April 2021

Napjaink egyik legnagyobb technikai kihívása az egyre csökkenő mennyiségben kitermelhető hagyományos, fosszilis eredetű energiahordozók kiváltása. A légi közlekedésben erre megnyugtató, hosszú távú megoldás eddig még nem született, jelenleg csak az elektromos meghajtású repülőeszközök jöhetnek számításba, amelyek ez irányú fejlesztése már tart, és az USAF is támogatja a koncepciót. A tanulmány korábbi részeiben a szerzők áttekintették repülőeszközök működtetéséhez alkalmazott energiahordozók fajtáit, a környezetszennyezés csökkentése érdekében szóba jöhető alternatív energiaforrások kiválasztásának szempontjait, majd a repülés környezeti hatásait. Felvetették a dinamikusan növekvő légi forgalom és a környezetvédelemi szabályozás ellentmondásait, elemezték az alternatívenergia-bevezetés kényszerű lassulásának okait, valamint aggályokat fogalmaztak meg a 2050-ig tartó fejlődés lehetőségeiről. A tanulmány III. része a katonai repülés és környezetszennyezés arányait vizsgálja, majd bemutatja a nemzetközi társadalmi, politikai, katonai válságok, illetve a koronavírus-járvány hatásait a repülőiparra és a légi közlekedésre. Ezt követően önálló rész foglalkozik az elektromos meghajtású repülőeszközök gyors bevezetésének kényszerhelyzetével, valamint az azzal járó kompromisszumokkal.
Lenyűgöző tűzerő egy könnyű terepjárón
Authors: Vincze Gyula
Published: April 2021

Az izraeli Rafael Advanced Defense Systems 2019 februárjában nyilvánosságra hozott egy Spike NLOS többcélú, többplatformos elektro-optikai irányzású rakétarendszerhez fejlesztett, új moduláris rakétaindító tesztlövészetéről készült videót. A látóhatáron túli földi célpontok megsemmisítésére képes könnyű hordozójárműre épített, légi szállítható rakétaindító rendszer javítja a szárazföldi kötelékek és a különleges műveleti erők harci képességét.
A Lynx harcjárműcsalád fejlesztése, technikai leírása és jövője III. rész
Authors: Ocskay István
Published: April 2021

A Lynx (Hiúz) a 21. századi elvek alapján épített egyik legkorszerűbb lánctalpas gyalogsági harcjármű. A tanulmány első része részletesen ismertette a Lynx harcjárművek fejlesztésének történetét, főbb technikai paramétereit, jellemző technikai megoldásait és meghatározó részegységeit. A második részben a motor és az erőátviteli berendezések, a futómű és a felfüggesztés bemutatására került sor. A szerző ismertette a moduláris Lance torony szerepét, képességeit, valamint a fő fegyverzetként beépíthető gépágyúk, illetve a javasolt lőszerek típusait. A harmadik rész az elektro-optikai érzékelőrendszerek működéséről, valamint az irányzó és a parancsnok toronyban elhelyezett munkaállomásairól ad áttekintést; majd a rakétatároló egységeket, a szenzorrendszereket és az érzékelőket ismerteti. Végül a Magyar Honvédség Lynx-szel kapcsolatos terveiről és a harcjármű hazai gyártásáról olvashatnak az érdeklődők. A Zrínyi Honvédelmi és Haderőfejlesztési Program keretében beszerzett harcjárművek 2022-től a Magyar Honvédség nehézdandár képességét erősítik.
MOLECULAR IDENTIFICATION OF Diplodia seriata De Not. CAUSING DIEBACK EFFECT ON GRAPEVINES AND EVALUATION OF in vitro EFFICACY OF FIVE DIFFERENT SYNTHETIC FUNGICIDES AGAINST THIS DISEASE
Authors: GÜNGÖR SAVAŞ Nurdan , YILDIZ Murat
Published: April 2021

The aim of this study was to realize the molecular identification of Diplodia seriata De Not., a member of the Botryosphaericea family, isolated from 2-10 years old vines in vineyards showing symptoms of dieback disease. The susceptibility of the pathogen against the fungicides with the fosetyl-Al+triadimenol, azoxystorbin+difecanozole, fludioxanil+cyprodinil, metrafenone, fluopyram+tebuconazole combinations were evaluated. The isolates obtained from the root and crown parts of the vine samples were identified as D. seriata according to the morphological and molecular methods. In molecular identification, the ITS (Internal Transcribed Spacer) and TUB2 (β-tubulin) gene regions of the isolates were amplified by Real-Time PCR and the nucleotide sequences were obtained in these gene regions. After using the MEGA 7 software, ITS and TUB2 sequences were aligned and a combined phylogenetic tree was made. It has been molecularly confirmed that the D. seriata isolate has a 100% similarity index with Diplodia species according to the phylogenetic analyses. The mean effective concentration (EC50) values of fungicides used with different concentrations (0, 1, 3, 10, 30, 50, 100 μL mL-1) were determined by Probit analysis. Cyprodinil + fludioxonil showed the highest efficacy (100%) at a concentration of 1 μL mL-1. According to EC50 values, cyprodinil + fludioxonil (0.001 μL mL-1) was recorded as the most effective fungicide followed by fluopyram + tebuconazole (0.520 μL mL-1) and, azoxystrobin + difenoconazole (2.958 μL mL-1), respectively.
Recreational Participation of Children with Autism Spectrum Disorder (ASD)
Authors: Ahmad Che Bon , Ramzi Nurul Raihana
Published: April 2021

Nature recreation is the recreation which require engagement with natural environment and settings. Previous research proven that recreation is important for people including the disabilities, towards achieving the quality of life. However, little is knownabout the development of recreation for People with Autism Spectrum Disorder (ASD. Thus, this research aimed to determine the effectiveness of nature recreation for children with ASD in a family with the objectives were to compare the changes in development of children with ASD in a family before and after participating in the nature recreation, and to identify the most preferable nature recreation activity for children with ASD in a family. A set of questionnaire surveys were distributed to a focus group called ‘Autism Malaysia’. This study showed, nature recreation can benefit children with ASD (aged from 0 to 12 years) and it is important for children development (social, intellectual, emotional and also physical). The children with ASD have positive changes in terms of communication and sociability components. However, for the physical behaviour, it showed the opposite findings; more risk and sign of ASD after participating in nature recreation. The result for each child may vary depending on the factors and nature recreation may not help to cure the ASD children completely. However, this study may help the family and caretaker of the children with ASD to use the nature recreation as the early intervention for their growth development. This research may help the planning development process in line with the Sustainable Development Goal which is social inclusion.

Keywords: nature recreation, active recreation, passive recreation, Autism Spectrum Disorder (ASD), SDG 10-2, social inclusion