bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategies, Difficulties, and Written Communication in Solving a Mathematical Problem
Authors: Martins Letícia Gabriela , Martinho Maria Helena
Published: August 2021

Abstract In an age where we live surrounded by technology, it is increasingly important to develop capabilities that differentiate us from “machines”. The habit of solving problems can help us develop some of them, including the ability to solve problems, and stimulate critical thinking. It is, therefore, important to propose tasks of a diverse nature in the classroom, and to invest more in mathematical problem-solving by students. For students to solve those problems, it is essential that they know different strategies to use and it is necessary that the teacher can identify the difficulties experienced by students in solving mathematical problems, so the teacher can help students overcome them. This article aims to identify the strategies students use to solve a problem, acknowledge the difficulties students experience, and characterize students’ written communication in their answers. To achieve these objectives, the answers to a mathematical problem which was solved by students of three 12th grade classes were collected and analyzed. In the resolutions analyzed, the strategy students used the most was the construction of schemes/figures. Regarding the difficulties, they were felt more at the level of information selection, as the students tended to add data that were neither in the statement nor could be deduced from it. Finally, when communicating their answers in writing, over half of the students did it with a high level of clarity, and the most frequently used type of justification was the exclusive use of schemes. In addition, the type of representation most used by the students was iconic representation.
Ciclos de Entendimento de Conceitos Associados ao Desenho de Experimentos Exibidos ao Realizar uma APM
Authors: Orozco-Rodríguez Claudia , Vargas-Alejo Verónica
Published: August 2021

Resumo O objetivo deste artigo é descrever e analisar ciclos progressivos de entendimento que um grupo de alunos universitários exibiram ao realizar uma Atividade Provocadora de Modelos [APM], durante a disciplina Desenho de Experimentos [DE]. O marco teórico foi a Perspectiva de Modelos e Modelação. Houve o interesse de conhecer quais conceitos e procedimentos conformavam cada um dos modelos que os estudantes construíram, com relação ao desenho de experimentos e provas de hipóteses, ao realizar uma APM, no início do curso? Durante a primeira implementação da APM emergiram ideias iniciais de conceitos como: experimento, fator estudado, processo, coleta de dados, variáveis dependentes e independentes, níveis, réplica, tratamentos etc. A segunda pergunta de investigação foi: como se desenvolvem os ciclos progressivos de entendimento referentes aos conceitos de desenhos de experimentos e provas de hipóteses? Para responder isto, foi realizada uma análise qualitativa com enfoque fenomenológico; os resultados mostraram como os sistemas conceituais foram se modificando, ampliando e refinando, a partir de três ciclos iterativos e interativos de entendimento: o ciclo qualitativo, no qual os estudantes usaram variáveis de caráter qualitativo e se expressaram mediante linguagem falada, metáforas e desenhos; o ciclo quantitativo, no qual as variáveis foram descritas mediante informação numérica e expressadas por meio da linguagem falada que fazia referência a operações matemáticas; o ciclo de refinamento, no qual os alunos exibiram os ciclos qualitativos e quantitativos, mas se expressaram usando números, tabelas, gráficos, equações e linguagem falada.
SUSTENTABILIDADE COMO PRÁXIS PEDAGÓGICA PARA A TRANSDISCIPLINARIDADE NA EDUCAÇÃO PROFISSIONAL E TECNOLÓGICA (EPT)
Authors: Pereira Máriam Trierveiler
Published: August 2021

A ideia deste artigo surgiu de inquietações sobre a trajetória e o potencial da Educação Profissional e Tecnológica (EPT) no Brasil em um momento crucial da história da humanidade, a Idade da Complexidade, em que ocorrem rápidas transformações no modo produtivo e com profundas implicações ambientais. Estudos mostram que daqui algumas décadas o indivíduo não terá uma única profissão, serão constantes a criação e o desaparecimento de ofícios. Por esse motivo, há previsões de que até 2050 deva surgir uma nova classe de pessoas: os “inempregáveis”. E, obviamente, os problemas sociais e econômicos provocam problemas ambientais, que é o cerne da sustentabilidade. Com vistas a esse novo cenário, desde o ano 2000, há esforços mundiais para atingimento de metas de desenvolvimento sustentável, inicialmente com oito Objetivos do Milênio (ODM) e, posteriormente, com dezessete Objetivos de Desenvolvimento Sustentável (ODS). Sob esse contexto, o objetivo deste trabalho foi defender as práticas de sustentabilidade como um possível caminho para o alcance da transdisciplinaridade na EPT. Para tanto, foram visitados e discutidos os conceitos e as peculiaridades da EPT, da transdisciplinaridade e da sustentabilidade. Em um momento acelerado de transformações motivadas pela pandemia de COVID-19, é urgente que o projeto da EPT se modifique para acompanhar as rápidas mudanças tecnológicas e de relações econômicas, sociais, políticas e culturais. Devemos aproveitar esse momento ímpar na história da humanidade para uma reforma íntima nos conteúdos e nas metodologias da EPT.
ESTUDANTES SURDOS NA ESCOLA COMUM: DESAFÍOS PARA LA EDUCACIÓN BILINGÜE
Authors: Neves Libéria Rodrigues , Dias Elayne Cristina Rocha
Published: August 2021

Este artigo aborda os desafios para uma educação bilíngue de estudantes surdos na escola comum. Apresenta considerações mediante os resultados de pesquisa desenvolvida em duas escolas públicas de Belo Horizonte – MG: duas circunstâncias de ensino-aprendizagem na área de Língua Portuguesa por parte de duas estudantes surdas no 5º ano do Ensino Fundamental. Utilizou-se de observação direta do contexto e entrevistas curtas semiestruturadas. É possível afirmar que ambas as escolas ofereciam o conjunto do suporte previsto para o atendimento das alunas, entretanto, o trabalho parece ainda estar organizado numa perspectiva de adaptação do estudante surdo aos projetos pedagógicos, a partir do paradigma da surdez apenas enquanto deficiência. Percebeu-se o uso da Libras apenas como mediadora na aprendizagem da Língua Portuguesa; além da desconsideração das particularidades linguísticas dos estudantes surdos; bem como a desatenção com a construção e/ou afirmação de suas identidades. Confirma o quão estamos distantes de um ensino bilíngue e bicultural para os surdos na perspectiva da Educação Inclusiva.
Performance of rocking foundations on unsaturated soil layers with variable groundwater levels
Authors: Turner Matthew M. , Ghayoomi Majid , Ueda Kyohei , Uzuoka Ryosuke
Published: August 2021

An emerging foundation design scheme, termed a rocking foundation, has the potential to limit loads transmitted to the superstructure, with the potential trade-off of increased settlements and rotations at the foundation level. These soil deformations can be significant for foundations with low vertical bearing capacity factors of safety. In this study, a set of dynamic centrifuge tests was performed to assess the response and to develop design considerations for a rocking foundation embedded in soil with varying degrees of saturation. Foundation design procedures dependent on degree of saturation are developed to predict moment capacities and initial rotational stiffness. Experimental data were used to validate the reliability of these procedures, regardless of the degree of saturation in the underlying soil. As the degree of saturation reduced, the moment capacity of the foundation increased, potentially increasing the load transmitted to the superstructure. Further, foundation settlements and rotations in the saturated soils can be reduced by lowering the water table depth in the underlying soil layer, which is beneficial to the performance of rocking foundations. Consequently, the degree of saturation of the supporting soil should be considered in the foundation design to predict the foundation settlement–rotation response and to assess properly the superstructure ductility demands.
AVALIAÇÃO DA DISPERSÃO ATMOSFÉRICA DE COMPOSTOS ODORANTES EMITIDOS NA INDÚSTRIA PAPELEIRA
Authors: Schirmer Waldir Nagel , Belli Tiago José , Kawano Mauricy , Nogueira Júlio César Batista , Balbinot Rafaelo
Published: August 2021

O caráter odorante de compostos reduzidos de enxofre (TRS), tipicamente emitidos na indústria papeleira, tem gerado grande interesse por parte dessas indústrias em predizer a qualidade do ar nas proximidades de suas fontes emissoras. Desse modo, o presente trabalho tem por objetivo avaliar o impacto na atmosfera resultante das emissões de TRS de uma fabricante de papel e celulose de grande porte, por meio da modelagem dos compostos gasosos emitidos a partir de duas fontes pontuais (tomadas como as maiores contribuidoras). Para tanto, foi utilizado o “software” AID (Avaliação Instantânea de Dispersão) baseado no modelo de Gauss para determinação das concentrações (no ar) resultantes dessas emissões. Nessa determinação, foram abordados os principais parâmetros meteorológicos (dos últimos 3 anos) e cinéticos de emissão necessários à modelagem. A máxima concentração de TRS obtida após a modelagem foi de 3,84 ppb (somatório das duas fontes avaliadas), ficando bem abaixo dos limites de percepção odorífera (LPO) recomendado por órgãos internacionais (o Brasil não possui leis específicas para esse caso). Como os limites de toxicidade quase sempre estão bem acima dos LPO, é seguro afirmar que, no caso avaliado, a concentração máxima estimada não apresenta riscos de toxicidade à população exposta, uma vez, pelo valor obtido, nem o odor pode ser percebido.
APLICAÇÃO DO MÉTODO UV/TiO2 PARA TRATAMENTO DE EFLUENTE DE LAVANDERIA DE MANUTENÇÃO MECANICA QUE CONTÉM FENÓIS
Authors: Kist Lourdes Teresinha , Flores Caroline Paiva , Corbellini Valeriano Antonio , Machado Ênio Leandro
Published: August 2021

A contaminação de solos e águas subterrâneas por compostos orgânicos tem mostrado um potencial poluente preocupante. Iniciamos este trabalho caracterizando a amostra proveniente de uma lavanderia de roupas provenientes de posto de gasolina, toalhas utilizadas em manutenção mecânica e cabeceiras de bancos de ônibus. A caracterização mostrou a necessidade de tratamento para a redução de fenóis. Nos últimos anos, os processos oxidativos avançados tem mostrado ser excelente para a degradação através da geração do radical HO. fortemente oxidante que permite a rápida e indiscriminada degradação de uma grande variedade de compostos orgânicos com completa mineralização. Dentre as várias alternativas existentes escolhemos trabalhar com a fotocatálise heterogênea, com a presença de TiO2 e radiação UV. No processo de tratamento aperfeiçou-se o método com o uso de um tipo de reator com rampa suportada com fotocatalisador (TiO2) construído anteriormente por MACHADO et al. (2007). Os resultados mostraram como melhor método conjugado UV/TiO2 com degradação em 60 minutos de 81% para a amostra sintética e de 13% para a efluente real. Do ponto de vista do toxicidade o tratamento foi eficiente, conseqüentemente diminuiu a quantidade de fenol, e não prejudicou, geralmente, o desenvolvimento nem o crescimento dos microrganismos no experimento.
Rapid Rate Intravenous Immunoglobulin Administration: Safety Outcomes in 11,334 Infusions
Authors: Rashid Nazia , Rigas Michael , Piracha Fawad , Alqadri Syeda
Published: August 2021

A national home infusion services provider (KabaFusion, LLC) traditionally administered intravenous immunoglobulin (IVIG) at conservative maximum infusion rates to minimize adverse drug reactions (ADRs).  The objective of this retrospective observational study was to identify the impact of increased on-label infusion rates of a specific, high-purity product (Octagam) on patient safety. The study included all patients who received IVIG over a 10-year period. The study population was composed of both adult and pediatric patients, with neuroimmune, neuromuscular disorders, and primary immune deficiency diseases warranting IVIG treatment.  Patients were divided into two randomized groups to provide an even distribution for analysis: those who received IVIG infusions at a rate of <110 mL/hr (Group 1) and those who received IVIG at ³110 mL/hr (Group 2). There were 489 patients identified for inclusion in Group 1 (n=245) and Group 2 (n=244). Demographics (gender, age) and exposure (number of infusions) were similar between both groups.

 

The study data included 11,334 total IVIG infusions with a total of 392 ADRs (3.5%). ADRs in the high infusion rate group (Group 2) were significantly lower (5.1% vs.1.8%, p<0.0001). In addition, the incidence of non-serious ADRs in Group 2 (1.7%) vs. Group 1 (4.8%) were also significantly lower in the high infusion rate group (p<0.0001). The number of serious adverse drug reactions (SADRs) was lower in Group 2 but did not reach statistical significance (Group 1: 0.3% vs Group 2:0.1%, p=0.0741). Based on these results, infusion rates of specific high-purity IVIG products were associated with statistically and clinically significant lower non serious ADRs in both the adult and pediatric populations, in addition to having an association of clinical significance in both for SADRs.  These results can be of great utility in clinical application if applied within the manufacturer’s recommended guidelines, to ease the burden of time required for patients undergoing IVIG infusions.
DIGITAL TRANSFORMATION OF COMPANIES AS A TOOL OF CRISIS MANAGEMENT: АN EMPIRICAL RESEARCH OF THE IMPACT ON EFFICIENCY
Authors: Kochetkov E. P. , Zabavina A. A. , Gafarov M. G.
Published: August 2021

The economic crisis generated by the coronavirus pandemic has acted as an accelerator for the digital transformation of almost all economic entities, as a result of which it has become a massive phenomenon. However, this situation has shown that the practical development of digital transformation as a tool for business management in the digital economy requires its theoretical understanding, the formation of a theoretical basis and a scientific definition of the essence of digital transformation of companies. In particular, one of the key problems in the implementation of digital transformation at the present time is the assessment of its effectiveness, since in most cases it does not always end successfully. At the same time, knowledge of approaches and criteria for the effectiveness of digital transformation can improve the quality of its implementation. The purpose of the study is to study approaches to assessing the effectiveness of digital transformation, to determine its nature and essence at a theoretical level, as well as to conduct an econometric analysis of the contribution of digital transformation to achieving the company's efficiency.

In the course of the study the existing approaches to defining the essence of digital transformation were studied, its key elements that make up the basis were established, and the existing approaches to assessing the effectiveness of digital transformation of a company and its impact on business efficiency were studied. The absence of a unified approach to assessing the effectiveness of digital transformation and the main reasons for this problem have been established. Based on the results of the regression analysis of a sample of the largest companies of the pre-digital era, implementing digital transformation, the formulated hypothesis about the impact of digital transformation on the short-term performance of the company (profitability) was refuted, which allowed us to assume the strategic nature of this tool, the results of which are formed over a lag of time.

When writing the article, various scientific research methods were used: deduction and induction when conducting empirical analysis of the activities of companies implementing digital transformation, analytical methods and regression analysis.

The obtained results of the study contribute to the development of the theory of assessing the effectiveness of digital transformation of business, anti-crisis management and determine the directions for further theoretical developments.
Effects of distal pancreatectomy and splenectomy on outcomes in patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy with CC/0 resection
Authors: ÖZGÜN Yiğit , ÖTER Volkan , PİŞKİN Erol , ÇOLAKOĞLU Muhammet , AYDIN Osman , BOSTANCI Birol
Published: August 2021

Background and Aim: This study aims to determine the early and late postoperative effects of distal pancreatectomy plus splenectomy in patients who underwent cytoreductive surgery and hyperthermic intraperitoneal chemotherapy and achieved CC0 resection due to peritoneal carcinomatosis. Material and Method: All patients who underwent a cytoreductive surgery and hyperthermic intraperitoneal chemotherapy procedure due to peritoneal carcinomatosis of various tumors in our clinic between 2014 and 2020 were included in the study. Data from all patients who underwent additional distal pancreatectomy plus splenectomy were analyzed retrospectively. Results: The cytoreductive surgery and hyperthermic intraperitoneal chemotherapy procedure with CC/0 resection was performed on 85 of 136 patients diagnosed with peritoneal carcinomatosis. Of these patients, 13 (15.3%) had undergone distal pancreatectomy plus splenectomy together with the main procedure. The mean hospital stay was 15 (range, 5–50) days in patients who underwent distal pancreatectomy plus splenectomy, whereas it was 13 (range, 4–109) days in those who did not, and the difference was statistically insignificant. The most common major complications seen in the distal pancreatectomy plus splenectomy group were an anastomotic leak, enterocutaneous fistula, and intraabdominal abscess. The 30-day mortality was two (15.38%) and one (1.38%) in the group with and the group without distal pancreatectomy plus splenectomy, respectively. When the groups were evaluated, the median survival time was 19 months in the cytoreductive surgery and hyperthermic intraperitoneal chemotherapy group and 18 months in the cytoreductive surgery and hyperthermic intraperitoneal chemotherapy + distal pancreatectomy plus splenectomy group. This difference was statistically insignificant (p = 0.382). Conclusion: The addition of distal pancreatectomy plus splenectomy increased major postoperative complications in patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy but did not affect overall survival. We think distal pancreatectomy plus splenectomy can be performed for a complete cytoreduction if necessary. However, it increases major postoperative complications, and patient follow-up should be done accordingly.
Analisis Kompetensi dan Kesiapan Mahasiswa PGSD dalam Pengelolaan Pembelajaran ABK di Sekolah Inklusi
Authors: Poerwanti Endang , Sulistyani Nawang
Published: August 2021

One of the superior profiles that prospective elementary school teacher students should have is competence in providing inclusive education services. The importance of these competencies is analyzed in this study to describe the competence and readiness of University Muhammadiyah Malang Elementary School Teacher Education Study Program students in managing ABK learning in inclusive schools. The mixed-method research with research subjects was 300 students, five lecturers, and one East Java inclusion development team. The research data were collected through a group discussion forum, questionnaires, and documentation which were analyzed using descriptive qualitative and quantitative techniques. From the research results obtained the formulation of ten competencies in the management of inclusive learning that should be mastered by prospective elementary school teacher students. The results also showed that the majority of UMM PGSD Study Program students had good readiness in mastering the ten competencies, including 85 percent mastering criteria 1, 2, 3, 4, 7, and 8; 65 percent mastered criteria 5 and 6; 80 percent mastered criteria 9 and 10. Salah satu profil unggul yang hendaknya dimiliki mahasiswa calon guru SD adalah kompetensi dalam memberikan layanan pendidikan inklusi. Pentingnya kompetensi tersebut dianalisis dalam penelitian ini dengan tujuan untuk mendeskripsikan kompetensi dan kesiapan mahasiswa Prodi PGSD Universitas Muhammadiyah Malang dalam pengelolaan pembelajaran ABK di sekolah inklusi. Penelitian ini menggunakan mix method dengan subjek penelitian adalah 300 mahasiswa, lima dosen dan satu tim pengembang inklusi Jawa Timur. Data penelitian dikumpulkan melalui forum group discussion, angket dan dokumentasi yang dianalisis dengan teknik deskriptif kualitatif dan kuantitatif. Dari hasil penelitian diperoleh rumusan sepuluh kompetensi pengelolaan pembelajaran inklusi yang hendaknya dapat dikuasai mahasiswa calon guru SD. Hasil penelitian juga menunjukkan bahwa mayoritas mahasiswa Prodi PGSD UMM memiliki kesiapan yang baik dalam menguasai sepuluh kompetensi tersebut, antara lain 85 persen menguasai kriteria 1, 2, 3, 4, 7 dan 8; 65 persen menguasai kriteria 5 dan 6; 80 persen menguasai kriteria 9 dan 10.
Wellbeing index avoiding scaling and weights
Authors: Chakrabartty Satyendra Nath
Published: August 2021

Objective: Existing well-being measures differ in terms of number and format of items, factors being measured, aggregation methods, and are not comparable. A well-being measure involves combining n- number of indicators and quality of the measure depends on properties of combining procedures adopted. The paper proposes two assumption-free aggregation methods to satisfy the desired properties of an index Methods: The paper proposes two indices of well-being in terms of cosine similarity and Geometric mean (GM) avoiding problems associated with scaling of raw data and choosing of weights. Empirical illustration is provided on application of the proposed measures. Results: The proposed indices give better admissibility of operations and satisfy properties like time-reversal test, formation of chain indices, computation of group mean and statistical tests for comparison across time and space. The preferred index can be constructed even for skewed longitudinal data and helps to reflect path of improvement registered by a country/region over time.  Conclusions: The index based on GM is preferred due to wider application areas. The index can further be used for classification of countries, sub-groups and even individuals with morbidity in terms of overall wellbeing values.  Future studies suggested.
El BID: Vol. 21, no. 5, mayo 1994
Authors:   Inter-American Development Bank
Published: August 2021

EL BID informa sobre el desarrollo económico y social de América Latina y el Caribe y sobre las actividades del Banco. Se publica 10 veces al año en ingles, español, portugués y francés.
Investigation of the applicability of the convolutional neural network U-Net to a problem of segmentation of aircraft images
Authors:   Lebedev Institute of Precise Mechanics and Computer Engineering, Russian Academy of Sciences, Gavrilov D.A. ,   Moscow Institute of Physics and Technology
Published: August 2021

The paper investigates the applicability of the convolutional neural network "U-Net" to a problem of segmentation of aircraft images. The neural network image segmentation method is based on the "Carvana" implementation with the "U-Net" architecture. For orientation recognition, a neural network built in the Keras open neural network library based on the pretrained VGG16 neural network is used. The approach considered allows the image segmentation to be conducted. The results of the experiments have shown the possibility of a fairly accurate selection of the object of interest. The resulting binary masks make it possible to visually classify the aircraft in the image.
Numerical study using finite element method for the thermal response of fiber specklegram sensors with changes in the length of the sensing zone
Authors:   Facultad de Ingenierías, Instituto Tecnológico Metropolitano, Arango J.D. , Vélez Y.A. ,   Facultad de Ingenierías, Instituto Tecnológico Metropolitano, Aristizabal V.H. ,   Facultad de Ingeniería, Universidad Cooperativa de Colombia, Vélez F.J. ,   Facultad de Ingeniería, Universidad Cooperativa de Colombia, Gómez J.A. ,   Grupo de investigación de Física Básica y Aplicada, Politécnico Colombiano Jaime Isaza Cadavid, Quijano J.C. ,   Grupo de investigación de Física Básica y Aplicada, Politécnico Colombiano Jaime Isaza Cadavid, Herrera-Ramirez J. ,   Facultad de Ingenierías, Instituto Tecnológico Metropolitano
Published: August 2021

The response of fiber specklegram sensors (FSSs) is given as function of variations in the intensity distribution of the modal interference pattern or speckle pattern induced by external disturbances. In the present work, the behavior of a FSS sensing scheme under thermal perturbations is studied by means of computational simulations of the speckle patterns. These simulations are generated by applying the finite element method (FEM) to the modal interference in optical fibers as a function of the thermal disturbance and the length of the sensing zone. A correlation analysis is performed on the images generated in the simulations to evaluate the dependence between the changes in the speckle pattern grains and the intensity of the applied disturbance. The numerical simulation shows how the building characteristic of the length of sensing zone, combined with image processing, can be manipulated to control the metrological performance of the sensors.
Formation of the Organizational Structure of Managing a Large Project of Oil Field Development
Authors: Zakirova Chulpan , Sadykova Regina , Stroykov Gennady , Zakirov Zinnur
Published: August 2021

The article analyzes the organizational structure of the project management development with regard to the field of traditional oil reserves, functional responsibilities and areas of responsibility of its participants, as well as the mechanisms of their interaction during the implementation of work to form the organizational structure of managing a large and unique project – the development of high-viscosity oil deposits. It has been revealed that in modern business conditions the implementation of projects for the development and recovery of high-viscosity oil fields based on the traditional organizational structure of management is not effective enough. The main reasons that impede the successful implementation of projects for the development of new deposits based on the traditional organizational structure of management are identified. A new organizational structure for managing a field development project is proposed, which includes a single center of responsibility for the field development project. By the example of the Ashalchinskoye field, the economic effect of using the formed organizational structure for managing the project for developing the field in the form of a possible additional annual oil production was calculated.
Inclusão da Pessoa com Deficiência nas Políticas Públicas de Emprego em Moçambique
Authors: Batone Domingos Carlos
Published: August 2021

O artigo discute a inclusão das Pessoas com Deficiência no mercado de trabalho moçambicano através de duas (2) dimensões das políticas públicas de emprego, nomeadamente, as passivas que fornecem suporte de renda para pessoas desempregadas por meio do seguro-desemprego e outros subsídios sociais, bem como as activas, destinadas a ajudar os deficientes desempregados a voltar ao trabalho com novas competências, por meio dos programas de treinamento e criação directa de emprego no sector público e privado. Embora ambas as abordagens tenham as suas valências, serão aplicadas na prática para verificar o nível de inclusão das PcD nas políticas públicas de emprego, identificar as alternativas e desafios para a sua Implementação. Recorrendo a uma metodologia mista, será operacionalizada a consulta bibliográfica, estatísticas do Quarto Censo Geral de 2017 e aplicadas entrevistas aos deficientes que integram a organização TV Surdo, vocacionada na defesa dos direitos das PcD.  No entanto, a continuidade das práticas de descriminação e estigmatização limitam cada vez mais o seu acesso ao mercado de trabalho, demandando assim por medidas que promovam acções afirmativas para este grupo prioritário.  O estudo chegou a conclusão de que, as políticas públicas de emprego em Moçambique são predominantemente passivas, no entanto, dos subsídios alocados desde 2018 até 2021 não sofreram nenhum incremento, apesar do comportamento da inflação demostrar o aumento do alto custo de vida. Assim, recomenda-se que as medidas passivas devem continuar, desde que sejam mais inclusivas e os empregadores precisarão de ser socializados a participar nos programas que revitalizem as políticas activas para este grupo vulnerável.
Metabolically healthy obesity: predictors of transformation to unhealthy phenotype in St Petersburg population (according to the ESSE-RF study)
Authors: Boyarinova M. A. , Rotar O. P. , Erina A. M. , Paskar N. A. , Alieva A. S. , Moguchaia E. V. , Kolesova E. P. , Konradi A. O.
Published: August 2021

Objective. The purpose of the study was to determine the dynamics of the metabolically healthy obesity (MHO) status according to the Meigs criteria, and to establish the predictors of the transformation of healthy obesity phenotype into an unhealthy (MUHO) one in the population of residents of St Petersburg (Russia) at 6,5-year follow-up. Design and methods. Within the epidemiology study ESSE-RF a random sample of 1600 St Petersburg inhabitants stratiﬁed according to gender and age was formed. Examination of participants included anthropometry with measurement of waist circumference and calculation of body mass index (BMI), measurement of blood pressure (BP), fasting blood glucose, insulin (index of insulin resistance was calculated), creatinine, cortisol, lipid spectrum, C-reactive protein, adiponectin, leptin, and uric acid. Meigs MHO criteria (2006) were used in obese subjects (BMI > 30 kg/m²). Obese patients, who were identiﬁed as metabolically healthy in 2012–2013, were invited for follow-up in 2018–2019. Results. At the ﬁrst stage obesity was diagnosed in 430 (26,9 %) participants, according to the BMI, 116 (27,0 %) of them were metabolically healthy according to the Meigs criteria. At follow-up, 44,4% individuals with the MHO phenotype transformed to the MUHO category on average after 6,5 years. Individuals who retained the MHO phenotype over time had signiﬁcantly lower baseline systolic BP and diastolic BP levels, more favorable lipid levels and lower levels of uric acid, insulin, and index of insulin resistance. Glucose increase by every 0,5 mmol/l and higher was associated with elevated probability of transformation MHO to MUHO phenotype by 10,9 times (adjusted for sex and age). Conclusions. Signiﬁcantly higher levels of BP, insulin resistance, low density lipoprotein and uric acid at baseline, as well as an increase in glucose levels over time, were associated with the transformation of the metabolically healthy to the unhealthy phenotype in obese individuals at 6,5-year follow-up. In all individuals with the MHO phenotype, there was a signiﬁcant increase in waist circumference over time, accompanied by an increase in BMI only in those who transformed into the MUHO status.
Przestrzeń turystyczna – cykliczność, „aktorzy", determinanty rozwoju
Authors: Włodarczyk Bogdan
Published: August 2021

Artykuł podejmuje problematykę przestrzeni turystycznej zarówno w ujęciu subiektywnym (indywidualnym, percepcyjnym), jak i obiektywnym (z punktu widzenia miejsca obszaru jej występowania). Omówiono także typy przestrzeni turystycznej ze względu na zajmowane terytorium oraz w układzie dynamicznym, traktując je jako możliwe fazy rozwoju ogólnej przestrzeni turystycznej. Efektem jest zaproponowany cykl rozwoju przestrzeni turystycznej. Ponadto scharakteryzowano rolę różnych grup „aktorów” przestrzeni turystycznej oraz determinanty jej organizacji i funkcjonowania. Zaproponowano również model postępowania badawczego zmierzającego do pełnej charakterystyki przestrzeni turystycznej.
​The Growth Response of Banana cv. Barangan (Musa acuminata L.) from Tissue Culture with Organic Manure and Arbuscular Mycorrhizal Fungi
Authors: . Samanhudi , Widijanto Hery , Muliawati Endang Setia , Favreta Veronika Fira , Hidayanto Muhamad
Published: August 2021

Background: Acclimatization is the last stage of tissue culture that aims to adapt plantlets to environmental conditions. Nutrient availability needs to be considered in this critical phase. This research was conducted to determine the right type of organic manure and AMF dose to support the post-acclimatization growth of banana cv. Barangan. Methods: The study using a completely randomized design (CRD) based on factorial with two treatment factors. The first factor is the type of organic manures: goat manure, cow manure, vermicompost and compost. The second factor is AMF doses: 0, 5, 10, 15 g/plant. Observed variables include the plant height, the pseudo-stem diameter, leaf number, leaf length and width and the percentage of mycorrhiza infections at the plant roots. Result: The results showed an interaction between the type of organic manure and AMF dosage at the leaf length and width, but not on the plant height, the pseudo-stem diameter and leaf number. The application of various organic manures types has a significant effect on the plant height, the pseudo-stem diameter, leaf length and width, but no significant effect on the leaf number. The application of various doses of AMF has no significant impact on all of the observed variables.
​Screening of Chickpea (Cicer arietinum L.) Genotypes for Germination and Early Seedling Growth under PEG 6000 Induced Drought Stress
Authors: Himaja R. , Radhika K. , Reddy K. Bayyapu , Raghavendra M.
Published: August 2021

Background: Drought stress at germination and early growth stages hinders the seedling establishment in chickpea which ultimately affects the economic yield. Such adverse affects of drought can be mitigated by screening and identifying the tolerant genotypes of chickpea which is commonly cultivated under rain-fed conditions during post-rainy season. Methods: Effect of drought stress on germination and early seedling growth of thirty three chickpea genotypes was studied under four different concentrations of PEG 6000 (-0.3, -0.6, -0.9 and -1.2 MPa) along with control and hydration under laboratory conditions during 2018-19. Result: Significant variation was observed among the genotypes for germination, root length, shoot length and seedling vigour index under different concentrations of PEG 6000. Complete inhibition of germination was observed in most of the genotypes at -1.2 MPa. Based on the results obtained, JG 11 and NBeG 3 were considered as tolerant since they showed comparatively higher germination, root length, shoot length and seedling vigour even at -1.2 MPa, while NBeG 723 and NBeG 833 were considered as susceptible genotypes because of their poor germination and seedling growth even at lower levels of drought stress.
​Agro-morphlogical and Quality Characters in two Summer Legume Crops: Mung Bean [Vigna radiata (L.) Wilczek] and Guar [Cyamopsis tetragonoloba (L.) Taub] Genotypes Grown in Mediterranean Climate Conditions
Authors: Ton Aybegün
Published: August 2021

Background: The aim of the present study was to investigate the grain yield, some yield components and quality parameters of mung bean and guar genotypes as summer legumes in East of Mediterranean region of Turkey. Methods: The field experiments were organized in randomized complete blocks design (RCBD) with three replications throughout 2016 and 2018. Result: The greatest the grain yield of mung bean was achieved by genotype KPS1 (3141kg ha-1) and lowest one was obtained from VC6153B6 (2344 kg ha-1) in the average of years. According to the mean years, maximum grain yield of guar was produced by genotype 45 (2354 kg ha-1), while the lowest grain yield was obtained from genotype 37 (1561 kg ha-1). Ash, crude protein, ADF and NDF contents in mung bean genotypes varied beetwen 2.8 and 3.0%, 21.9 and 25.3%, 30.8 and 34.6% and 41.3 and 49.7% in the average of years, respectively. Guar genotypes contain 90.3 to 90.7 drymatter, 4.8 to 5.0% crude ash, 3.8 to 4.6% crude fat, and 33.2 to 35.4% crude protein.
Educación básica y media superior en México y la implementación del Modelo Interdistrital de Calidad Educativa Lasallista (MICEL) en el Distrito Antillas-México Sur
Authors: Linares Callejas Raúl , Sarmiento Marruffo Karen D.
Published: August 2021

A través del tiempo, el sistema educativo mexicano ha evolucionado con la incorporación de una serie de reformas que pretenden dar respuesta a las necesidades sociales de un mundo globalizado; sin embargo, su implementación no siempre ha sido exitosa por diversos motivos derivados del contexto. Asimismo, la calidad ha sido uno de los retos fundamentales de la educación, por ello, las instituciones públicas y privadas han sido reguladas a través de organismos acreditadores y certificadores, pero los resultados obtenidos por estas entidades no siempre han sido los esperados; porque, en general, registran una resistencia al cambio y una limitada capacidad de innovación en los procesos de las instituciones educativas. En el 2019, la oficina para la Asociación y Misión Educativa Lasallista del Distrito Antillas-México Sur reestructuró su Modelo Interdistrital de Calidad Educativa Lasallista, con la finalidad de facilitar su implementación y gestión. Actualmente, existen 27 productos resultado de dicho instrumento, que se comparten a fin de aportar valor a las principales necesidades educativas.
Creación de materiales didácticos digitales para la enseñanza del español como lengua extranjera
Authors: Sandoval Andrés
Published: August 2021

En este artículo se presentan tres elementos fundamentales que favorecen el aprendizaje de idiomas, y que además constituyen la base de la creación de material didáctico digital: la inmersión a través de narraciones interactivas, para generas espacios y contextos específicos; el entretenimiento como vector de motivación; y la interacción entre los elementos y actores. Además, el contexto de este artículo se inscribe en el análisis de las siguientes problemáticas: ¿por qué escoger el juego (video) como elemento pedagógico?, ¿cuál es el contexto del aprendizaje del español como lengua extranjera en Colombia?, y ¿en qué consiste la narración interactiva y cómo estos procesos favorecen un aprendizaje innovador?
Convergencia regional en España, 1980-2003: eficiencia sectorial y estructura productiva
Authors: Sánchez Antonio Rafael Peña , García Mercedes Jiménez
Published: August 2021

En este trabajo se revisa y actualiza la evolución de las disparidades económicas regionales en el periodo 1980-2003, a partir de la descomposición del VABpc en productividad aparente del trabajo, empleos por habitantes, productividad aparente del capital y capitalización del empleo, identificando las posibles causas que las han determinado, igualmente se examina la influencia que la reestructuración de los sectores productivos y la productividad sectorial de las regiones han tenido en la evolución de las desigualdades económicas regionales, y por último, se estudia el impacto que la capitalización del empleo ha ejercido en la eficiencia productiva, y a través de esta, en el nivel de desarrollo económico de las comunidades autónomas españolas.
Estimación y análisis de los gastos e ingresos económicos de la población flotante estudiantil universitaria de pregrado en la ciudad de Tunja, Colombia
Authors: Triana María Isabel Rojas
Published: August 2021

Este artículo muestra la estimación de un modelo de demanda del gasto e ingreso económico que ejercen los estudiantes flotantes en la ciudad de Tunja. Está basado en una aplicación a la función de Engel propuesta por Working-Lesser, tomando datos de una encuesta hecha a una muestra de estudiantes flotantes universitarios de pregrado de la ciudad de Tunja, a quienes se les indaga por algunas variables socioeconómicas, entre ellas el gasto y el ingreso. La demanda más relevante de los estudiantes flotantes está dada por el gasto que ejercen en vivienda, observado a partir del valor de los coeficientes del sistema de ecuaciones planteado en el modelo.
La nueva historia económica, la teoría de la regulación y el análisis histórico social: Notas para un debate
Authors: Reina Danilo Torres
Published: August 2021

El propósito fundamental de este ensayo es demostrar si la nueva historia económica (NHE) es una variante de la historia social, o si la misma tiene un origen en la economía como tal. El artículo demuestra lo último, lo cual lo conduce a considerar el paradigma específico de su génesis, sus debilidades y fortalezas, y la importancia para el historiador económico y para el análisis social. Planteado lo anterior, se esboza una perspectiva alterna que posibilita superar algunas de las falencias de este paradigma, que se ha constituido en una metodología dominante para hacer historia económica. Esta renovada mirada a los fenómenos histórico económicos, recupera la esencia social que caracterizó en sus orígenes la historia económica.
Photocatalytic degradation of the 2,4-dichlorophenoxyacetic acid herbicide using supported iridium materials
Authors: Castañeda Martínez Claudia Patricia , Alvarado Ortega Ignacio Alfonso , Rojas Sarmiento Hugo Alfonso , Tzompantzi Morales Francisco Javier , Gómez Romero José Ricardo
Published: August 2021

In this work, the effect of the addition of iridium on TiO2 and Nb2O5 supports obtained by wet impregnation method was evaluated in the photocatalytic degradation of 2,4-dichlorophenoxiacetic acid under UV irradiation. The synthetized materials were analyzed by different techniques in order to determinate their physicochemical properties. In general, it was observed that the addition of iridium modifies the surface area, band gap energy and it enhances the crystallinity of the materials. Besides, an increase in the photoactivity in the degradation of the herbicide was evidenced using the materials modified. However, the Ir/TiO2 photocatalyst possess the best photocatalytic behavior toward the degradation and possible mineralization of the herbicide. The improved performance of the photocatalyst could be argued by the role of the iridium particles as electron collectors favoring the effective separation of the charge carriers and, as consequence, increasing the degradation of the molecule.
Nanopartículas magnéticas funcionalizadas y modificadas con entrecruzamiento para mejorar la inmovilización de la invertasa
Authors: Vargas Annie Y. , Romanelli Gustavo P. , Martinez Jose J.
Published: August 2021

Se han desarrollado procedimientos de inmovilización con invertasa utilizando diferentes soportes. Sin embargo, las desventajas como el uso de partículas pequeñas para inmovilizaciones de invertasa en reactores de lecho compacto se están resolviendo utilizando partículas magnéticas. En este estudio, los compuestos que contienen Fe3O4 se prepararon mediante la incorporación de una capa de polisiloxano necesaria para la adsorción física de la invertasa. Además, la magnetita funcionalizada se activó con glutaraldehído y polietilenimina (PEI) con el objetivo de realizar una inmovilización covalente. Se analizó el efecto de diferentes condiciones como la relación enzima: soporte, pH y temperatura en la conservación de la invertasa. Los resultados demostraron que la relación enzima: soporte óptima es mayor para la unión covalente que para la adsorción física. El pH ideal para la enzima inmovilizada es 5,0 y la actividad enzimática se mantiene hasta 70 ° C. Los valores de km son similares en ambos métodos de inmovilización. El análisis del efecto del pH y la termoestabilidad mostró que la actividad catalítica de la invertasa no se ve afectada en comparación con la enzima libre. La inmovilización covalente muestra una mayor eficacia en el proceso de inmovilización (Fε), menos inhibición y el doble de estabilidad. Las enzimas inmovilizadas por métodos físicos y covalentes se pueden reutilizar hasta por cuatro ciclos y se pueden eliminar del medio de reacción aplicando un campo magnético externo.
ANÁlISIS DE LOS TEXTOS ESCOLARES DE HISTORIA. ESTuDIO DE CASO SOBRE LA POSGUERRA CIVIl ESPAÑOLA
Authors: Díez Gutiérrez Enrique Javier
Published: August 2021

El objetivo ha sido analizar los libros de texto de la asignatura de Historia. Más concretamente, hemos querido analizar los contenidos que se reflejan actualmente en los contenidos de los libros de texto escolares sobre el período correspondiente a la historia de España, que se ocupa de la posguerra a partir de 1939 y, especialmente, de la represión de la dictadura franquista y la lucha antifranquista que se prolongó hasta bien entrados los 60. Los contenidos correspondientes a este período histórico están ubicados curricularmente sobre todo en los cursos correspondientes a las edades de 15 años y de 17 años. La metodología utilizada es de corte cualitativo, usando como instrumentos de investigación el análisis crítico de contenido y las entrevistas al profesorado. Tras este extenso estudio nos hemos encontrado que en los libros de texto de Historia se sigue ignorando u ocultando buena parte de los hechos que se desarrollaron tras el fracaso de la experiencia republicana en los años 30 en España, especialmente los relacionados con la represión de la dictadura franquista y la resistencia de muchos hombres y mujeres frente a ella. Las conclusiones de esta investigación parecen recordar lo que decía el escritor argentino y víctima de su dictadura militar, Juan Gelman: “Desaparecen los dictadores y aparecen inmediatamente los organizadores del olvido”.Palabras clave: Revista Historia de la Educación Latinoamericana, textos escolares, memoria histórica, historia de España, análisis de contenido, dictadura franquista, lucha antifranquista.
OS MANUAIS DO PROFESSOR DAS COLEÇÕES DIDÁTICAS E OS REFERENCIAIS CURRICULARES COMO FONTES DE PESQUISA EM EDUCAÇÃO
Authors: Luiz Paulilo André
Published: August 2021

Este artigo tem como finalidade apresentar resultados de uma pesquisa acerca do ensino de história. Este estudo busca mostrar os manuais do professor e os referenciais curriculares como fontes de pesquisa em educação. Trata-se de discussão fundamentada na idéia de que, no Brasil, os manuais do professor e os referenciais curriculares trazem representações acerca do ensino. Argumenta-se que os paradigmas organizadores do discurso sobre as práticas de ensino nos manuais didáticos e nas orientações curriculares têm composto bases teóricas e metodológicas específicas. Assim, o artigo expõe e analisa alguns aspectos desses tipos de impressos escolares.Palavras chave: Revista História da Educação Latino-americana, ensino de história, manuais do professor, ensino fundamental, representações.
Información de autores
Authors: Rhela Revista
Published: August 2021

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PERAN GOOD CORPORATE GOVERNANCE DALAM MEMINIMALISIR TERJADINYA FINANCIAL DISTRESS
Authors: Sa’diah Wulan Maulidiss , Utomo Mohamad Nur
Published: August 2021

This study aims to determine the effect of managerial ownership, independent board of commissioners, board of directors, and audit committee on financial distress in banking companies listed on the Indonesia Stock Exchange from 2015 to 2019. This research used the purposive sampling method with a sample of 41 companies consisting of 205 observational data. Data were analyzed using logistic regression. The results showed that independent board of commissioners and board of directors had a significant and negative effect on financial distress. However, managerial ownership and audit committee did not have a significant effect on financial distress. This study supports the agency theory, which states that the monitoring role of the independent board of commissioners and the board of directors can minimize the occurrence of agency conflicts in a company.

Keywords: audit committee, board of directors, financial distress, independent board of commissioners, managerial ownership