bluuebunny/crossref_metadata_2025 huggingface dataset:
Cuidado à criança na atenção primária à saúde: conflitos (bio)éticos
Authors: Brito Mirna Peçanha , Silva Eugênio , Siqueira-Batista Rodrigo
Published: October 2021

Resumo Os conflitos bioéticos no cotidiano do cuidado à criança e ao adolescente na atenção primária à saúde, embora bastante complexos, têm sido pouco abordados, diferentemente do que ocorre no nível de atenção terciária. O amparo a essa população especialmente vulnerável envolve conflitos que demandam do profissional de saúde, além de competência técnica, uma série de conhecimentos legais e atributos éticos indispensáveis. É importante, portanto, reconhecer e analisar as questões (bio)éticas envolvidas, a fim de possibilitar uma tomada de decisão que contemple o melhor interesse da criança. O objetivo do artigo é delimitar, com base em revisão de literatura, os principais conflitos éticos relacionados ao cuidado da criança na atenção primária.
Nutricionistas e cuidados paliativos no fim de vida: revisão integrativa
Authors: Amorim Ginetta Kelly Dantas , Silva Geórgia Sibele Nogueira da
Published: October 2021

Resumo O suporte nutricional nos cuidados paliativos visa melhorar a qualidade de vida do paciente por meio do controle de sintomas associados à alimentação, priorizando os desejos do indivíduo. Há controvérsias quanto à real contribuição da alimentação para o conforto de pacientes em cuidados paliativos na terminalidade de vida, e ainda é preciso esclarecer as competências específicas do nutricionista nessa área. Tendo em vista essas lacunas, a presente revisão integrativa objetiva conhecer como nutricionistas atuam com pacientes em cuidados paliativos no fim de vida. A amostra final foi composta por sete artigos que apontam diferenças entre o cuidado nutricional convencional e em cuidados paliativos e apresentam dilemas bioéticos relacionados à alimentação. Conclui-se que é preciso conhecer melhor o modo de atuar dos nutricionistas na assistência paliativa. Mais estudos sobre o tema devem ser desenvolvidos, considerando não só aspectos nutricionais, mas também o caráter simbólico da alimentação.
Hanseníase: crenças e tabus de agentes comunitários de saúde
Authors: Alencar Olga Maria de , Pereira Thayza Miranda , Heukelbach Jorg , Barbosa Jaqueline Caracas , Cavalcante Ana Suelen Pedroza , Silva Maria Rocineide Ferreira da
Published: October 2021

Resumo Por meio da análise crítica do discurso, este artigo busca compreender na prática de agentes comunitários de saúde os discursos sobre a hanseníase/lepra, doença estigmatizada e envolta em saberes e práticas, tendo como premissa que esses profissionais incorporam representações preconcebidas ao trabalho. A pesquisa está estruturada de modo a familiarizar o leitor com os aspectos teóricos dessa análise e o percurso histórico dos profissionais na formação do discurso. Do corpus empírico emergiram as categorias: “comida reimosa: crenças e tabus alimentares”; “crenças e tabus relacionados ao álcool”; e “hanseníase, a doença que cai os pedaços”. Foi revelado que os agentes acreditam na existência de alimentos reimosos e na culpabilização do álcool para o prolongamento do tratamento e que ainda circula a concepção de que a doença faz cair pedaços do corpo da pessoa acometida. Os conhecimentos técnicos equivocados dos agentes podem estar relacionados à forma como se dá a educação permanente.
Ética e autoria nas revistas brasileiras de psicologia
Authors: Freitas Caio Mendes de , Mainieri Alessandra Ghinato , Mármora Cláudia Helena Cerqueira
Published: October 2021

Resumo O crédito e a responsabilidade pela autoria científica são assuntos discutidos na literatura nacional e internacional. Em 1978 foi criado o International Committee of Medical Journal Editors, que estabeleceu regras gerais para determinar a autoria em publicações científicas. Ao discutir aspectos éticos da produção científica, este artigo busca apresentar essas diretrizes, bem como o percentual de revistas nacionais de psicologia que as adotam. A partir do sistema da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, foram avaliadas publicações nacionais de psicologia com Qualis A1, A2, B1 e B2. Identificou-se que as políticas editoriais das 292 revistas encontradas, estão em consonância com os critérios de autoria do comitê, sugerindo que publicações nacionais de psicologia evidenciam qualidade e credibilidade por cumprirem regras de responsabilidade pela autoria.
Distribution of load effects and reliability of reinforced concrete frames: intact and with columns removed
Authors: Facholli Pedro Henrique Preto , Beck André Teófilo
Published: October 2021

abstract: The design of reinforced concrete (RC) frames is made on a member-by-member basis. Similarly, in the literature, the reliability of RC beams and columns is often studied in isolation from the rest of the structure. Yet, in the construction of regular frames, symmetry and regularity are often exploited, resulting in the same design for each element type. This is despite of different load effects on different parts of the structure, which leads to significant variations in the failure probability of the elements. Hence, in this paper, we investigate the reliability of members and the distribution of load effects in regular RC frame buildings, considering intact and column loss cases, where symmetry is lost. Results show that the ratios of normal-to-bending loads change significantly along building height, and this has a significant impact on reliability of individual columns.
Record of aquatic invertebrates associated with the bromeliads Aechmea ornata (Baker) and Aechmea recurvata (Klotzsch) L. B. Sm in two Atlantic Rainforest fragments of south Brazil
Authors: Silva Yuri Kataoka , Moser Anderson de Souza , Ceneviva-Bastos Mônica , Affonso Ana Lucia Suriani
Published: October 2021

Abstract: Bromeliads are numerous both in diversity and abundance in the Atlantic Rainforest, one of the most threatened biomes on Earth. They are also an important habitat for several animal species that live in the water retained by its rosette structure. In this study, we aimed to characterize and compare the macroinvertebrate community of two bromeliad species from Atlantic forest fragments. One is characteristic of Dense Ombrophilous Forests, Aechmea ornata, and the other occurs in Mixed Ombrophilous Forests, Aechmea recurvata. We sampled and identified macroinvertebrates form 24 bromeliads, 12 of each species. A total of 19 taxa and 656 specimens were sampled. In both bromeliad species, Diptera was the most abundant insect order (n=417), represented mostly by mosquitoes (n=227) and non-biting midges (n=107), followed by Scirtidae marsh beetles (n=216). Aechmea ornata presented higher abundance and lower invertebrate richness compared to Aechmea recurvata. Seven taxa were exclusive of A. recurvata, eight were common to both, and four, including a sponge, occurred only in A. ornata. The most abundant invertebrate taxa were common to both bromeliads and are regarded as typical of lentic environments. On the other hand, the high number of exclusive species indicates that conservation efforts should include bromeliads from these two phytophysiognomies to secure protecting the diversity of phytotelmata communities.
From Urban Façade to Green Foundation: Re-Imagining the Garden City to Manage Climate Risks
Authors: Swart Rob , Timmermans Wim , Jonkhof Jos , Goosen Hasse
Published: October 2021

Climate risk management evolves rapidly from one additional challenge for urban planning into a radical driver of urban development. In addition to fundamental changes in urban planning to increase long-term resilience, the creation of new opportunities for sustainable transformation is imperative. While urban planners increasingly add climate risks to their menu, implementation of effective action is lagging. To reduce urban infrastructure’s vulnerability to heat and flooding, cities often rely on short-term incremental adjustments rather than considering longer-term transformative solutions. The transdisciplinary co-development of inspiring urban visions with local stakeholders over timescales of decades or more, can provide an appealing prospect of the city we desire—a city that is attractive to live and work in, and simultaneously resilient to climate hazards. Taking an historic perspective, we argue that re-imagining historical urban planning concepts, such as the late 19th-century garden city until early 21st century urban greening through nature-based solutions, is a pertinent example of how climate risk management can be combined with a wide-range of socio-economic and environmental goals. Climate knowledge has expanded rapidly over the last decades. However, climate experts mainly focus on the refinement of and access to observations and model results, rather than on translating their knowledge effectively to meet today’s urban planning needs. In this commentary we discuss how the two associated areas (urban planning and climate expertise) should be more fully integrated to address today’s long-term challenges effectively.
Towards Green(er) Cities: Contextualizing Green Benefits for Urban Spaces and Contemporary Societies
Authors: Cilliers Juaneé
Published: October 2021

There is an expanding understanding of the value and critical need for green(er) cities. It comes at a time when green spaces are depleting on a global scale, in order for cities to host the majority of the world’s population. The contest between diverse land-uses is inflating the pressure on already strained resources, intensifying the growing carbon footprint and impairing water quality, and compromising health and overall quality of life. Soon our cities will be far removed from the safe, clean, and liveable environments, as envisioned in planning theory, if we continue with business-as-usual. There is an increasing scientific appreciation of the interrelated role of green land-uses, the value of our environment and its related ecosystem services, which acts as catalyst to realise the objectives of broader sustainability. Although literature is clear on the importance, role, benefits, and impact of green(er) cities, the realisation of the greening initiatives in practice is still limited, and more should be done to embed green(er) thinking as part of mainstream urban planning. Urban spatial transformation is needed to reclaim nature for cities and to enhance the direct and indirect benefits that nature provides to contemporary societies. This thematic issue considered various trans-disciplinary approaches to provide a way forward in the quest of prioritising the notion of green(er) cities, while drawing on a range of evidence-led initiatives.
JOHANNES ITTEN: THE SEVEN COLOR CONTRASTS
Authors: SAMOGOROV Vitaly A. , KONKINA Ekaterina D.
Published: October 2021

Seven color contrasts are considered in the article; they were described in the book «The Elements of Colour» by Johannes Itt en. In the fi rst part the theory of color contrasts is perceived to be a specifi c phenomenon, which shows how the colors interact with each other. In the second part of article there is the analysis of the architectural elements based on the Itt en‘s theory of color contrasts. So, the interaction of color contrasts and their infl uence on building and its perception and forms are identifi ed by the color contrasts.
GARDEN AND PARK ENSEMBLES IN THE TOWNS’ HISTORY
Authors: VOLOGDINA Nataliya N. , VOLODIN Mikhail A.
Published: October 2021

The narrative motive of the study is the fact of the infl uence of the garden and park ensembles’ construction on the development of cities. The historical periods of the highest fl owering of culture, philosophy, aesthetic ideas, and the development of construction skills have been selected for the work. The authors of the article draw att ention to the theoretical works of the 20th century in Western civilization, considering the city as a natural system. Their connection with the concepts of the 16th- 19th centuries in England, France, Italy, and France is affi rmed. The idea of the city as a natural system is revealed through images and metaphors, which help to understand the place of public landscapes in the history of civilization. The article presents the garden-park complexes, the creation of which changed the urban planning paradigm, initiated the construction of new cities, promoted the replacement of obsolete or lost elements of urban structure. The author suggests the classifi cation of landscape complexes according to their role in the development of urban planning and their infl uence on the artistic culture, architecture and morphology of the city.
PEDESTRAIN OVERPASSES IN THE COMPLEX TRANSFORMATION OF DEVASTED CITY TERRITORIES
Authors: MEDVEDEVA Tatiana A.
Published: October 2021

The preservation of the historical, urban planning and architectural heritage of historical cities requires a special approach to the environment modernization. The modern period is characterized by the search for new safe waste management algorithms. It often leads to the construction of large-scale discordant objects. This process puts forward new requirements for the preservation of the visual protection zones of cultural heritage objects. The article is devoted to a promising strategy for optimizing of devastated territories. It includes the creation of overpass pedestrian links, which can be an additional source of landscaping, as well as open up new opportunities for the transit of engineering networks. The article analyzes the possibility of using such architectural and spatial solutions to modernize the waste management infrastructure of urban devastated.
Questionnaire for initial self-assessment in post-COVID period: Recommendations of Multidisciplinary expert board on screening of post-COVID syndrome during an expanded medical check-up
Authors: Chuchalin Alexander G. , Ametov Alexander S. , Arutyunov Gregory P. , Drapkina Oksana M. , Martynov Mikhail Yu. , Mishlanov Vitaliy Yu. , Mosolov Sergey N. , Potekaev Nikolay N. , Soldatov Dmitry G.
Published: October 2021

The post-COVID symptom complex is wide enough and requires special vigilance during clinical examination of patients after the novel coronavirus infection.

The aim of the Multidisciplinary Expert Board study was to develop a standardized questionnaire for initial self-assessment by patients who had had COVID-19 before the expanded medical check-up.

Methods. The existing validated international and national questionnaires and scales were analyzed to assess their relevance, convenience, and ease of filling out. Results of the analysis were used to set up a screening for post-COVID symptoms.

Results. The work of the Multidisciplinary Expert Board in June-August 2021 resulted in a new screening questionnaire for the initial assessment of the health status of patients who have COVID-19. The questionnaire is intended for self-filling before the further clinical examination.

Conclusion. A new standardized patient questionnaire to screen for post-COVID symptoms may significantly optimize the doctor’s working time, increase the efficiency of diagnosis, improve the principles of selection and formation of risk groups of patients during an expanded medical check-up.
Infrastructure, Gross Regional Domestic Product, and Convergence of Human Development Index
Authors: Susanto Joko
Published: October 2021

Due to a disparity in Human Development Index (HDI) among regencies and cities in Special Region of Yogyakarta, this study aimed to examine whether HDI convergence occurred in this province. The data were sourced from the Statistics of Special Region of Yogyakarta, including HDI, infrastructure, and gross regional domestic product in four regencies and one city from 2001 to 2019. The infrastructure consists of installed electricity, education, and health facilities. The results showed an absence of HDI convergence between regions in the Special Region of Yogyakarta. Furthermore, HDI growth in the impoverished region was slower than in leading ones, resulting in a gap. The infrastructure gap made the impoverished region unable to catch up with leading ones, causing an HDI divergence. In contrast, Gross Regional Domestic Product (GRDP) has no impact on HDI. Therefore, the government needs to improve infrastructure in disadvantaged areas to increase HDI.
Nexus Between FDI and Production Indices: Evidence from Asian Countries
Authors: Paul Sujan Chandra , Jahan Nusrat , Hassan Md. Mehedi , Mondal Tandra
Published: October 2021

This study aims to explore the effect of foreign direct investment on different types of production indices and some other variables. For this, panel data of 46 countries from Asia was accumulated for the time frame of 1991 to 2018. This paper employed the OLS, POLS, 2SLS, and GMM models. The study reveals that there is a favorable association between foreign direct investment and food production index and fertilizer consumption in all the models used in the study. Livestock production index has significant positive association with foreign direct investment in POLS and GMM models. Crop yield has major positive association with regards to foreign direct investment in all mentioned models except GMM. Land under cereal production has significant positive association in respect of foreign direct investment in OLS and 2SLS models. Crop production index has significant mixed association with foreign direct investment in different models. In POLS model, crop production index and foreign direct investment has significant inverse relationship and in GMM model, crop production index and foreign direct investment has significant positive correlation. Finally, permanent cropland has significant negative relationship with regards to foreign direct investment derived from OLS and 2SLS models.
Examination of the Causes and Consequences of International Migration in Nigeria
Authors: Duru Innocent U
Published: October 2021

This study examined the leading causes and consequences of international migration in Nigeria. A survey research design was utilized for the study. The data was collected through a structured questionnaire. The opinions of 100 respondents selected through the purposive sampling technique were obtained on the principal causes and consequences of international migration in Nigeria. The findings revealed that the principal causes of international migration in Nigeria were job opportunities, unemployment, wealth prospects, safety and security, better conditions of service, low salaries and higher standards of living. These foremost causes of international migration in Nigeria were mostly economic factors. Furthermore, the findings showed that the foremost positive and negative effects of international migration in Nigeria were integrated development, increase in remittances, cheap and surplus labour, urban services and social infrastructure under stress, stricter immigration norms, multi-ethnic society and increased tolerance, Xenophobia, close gaps in skills and cultural dilution. These effects were economic, social and political. Among others, the study, thus, recommends that: the strategies of the government for stemming international migration should address push factors of unemployment, safety and security and low salaries and pull factors such as job opportunities, wealth prospects, better conditions of service and higher standards of living since they are the root causes of international migration. Furthermore, migration, a long-standing poverty reduction and strategy for human development need to be mainstreamed into policies of development in Nigeria at the Federal, State and Local Governments.
Irrationality of managers’ behavior in corporate financial decision making
Authors: Banaszek Marcin
Published: October 2021

Purpose of the study: The subject of consideration is the behavioral aspects of corporate finance. The consideration is devoted to the basic inclinations of psychological nature characteristic of managers. The main purpose of the article is to characterize the irrational behavior of managers in the process of financial decision-making in the enterprise.

Methodology: The paper was prepared with the use the critical literature review method mainly in the field of behavioral corporate finance.

Main findings: The discussion shows that behavioral corporate finance focuses mainly on cognitive and motivational-emotional processes in managers, which may occur in various decision areas within which managers make choices. There are three groups of psychological phenomena and inclinations that are characteristic of managers who manage business entities, namely predispositions to systematic inference errors, heuristics, and the presentation effect.

Application of the study: The presented article refers to the irrational behavior of managers in the process of making financial decisions in the company. It implies reflections in such scientific fields as, among others, economics and finance, management and psychology. The use of the tools of psychology allows analyzing the problems of financial decision-making of managers in the enterprise, noticing in them some deviations from rationality that can affect the efficiency of the enterprise. The content of the article can be useful for managers making financial decisions in an enterprise.

Originality/Novelty of the study: Behavioral finance is a young discipline of finance, the scientific output of which in Poland is still small. Behavioral aspects are just beginning to gain importance in the decision-making process, especially the financial one. The tendencies of managers to irrationality in the decision-making process presented in this article allow us to better understand the errors, psychological factors that may cause wrong decisions, which in turn may translate into poorer financial condition of the whole enterprise. The article can inspire further research and inquiry in the field of behavioral finance and contribute to other interesting scientific studies.
Sortilin as a marker of atherosclerosis: biological and pathophysiological aspects
Authors: Gubareva I. V. , Vukolova Y. Y.
Published: October 2021

Subclinical atherosclerosis is an independent predictor of increased cardiovascular risk, including patients with hypertension. The article provides an overview of the pathogenetic role in atherogenesis and cardiovascular risk stratification of sortilin peptide which belongs to the family of vacuolar sorting receptors of type I. Circulating sortilin impacts both lipid and non-lipid pathogenetic mechanisms of atherogenesis. It can serve as an early biomarker of cardiovascular risk and a potential therapeutic target for dyslipidemia management and atherosclerosis at subclinical level.
Hypokalemia and the renin-angiotensinaldosterone system activity in COVID-19 patients
Authors: Tsiberkin A. I. , Golovatyuk K. А. , Bykova E. S. , Andreeva A. T. , Vashukova M. A. , Tsoy U. A. , Karonova T. L.
Published: October 2021

Background. Hypokalemia is a common electrolyte complication among hospitalized patients with pneumonia caused by a new coronavirus SARS-CoV-2. Hyperactivation of the renin-angiotensin-aldosterone system (RAAS) is suggested as a possible cause of hypokalemia in patients with COVID-19.

Objective. To investigate the RAAS activity in COVID-19 patients with and without hypokalemia and its possible association with treatment outcomes.

Design and methods. The cross-sectional cohort study included 172 patients with COVID-19 pneumonia. Potassium, aldosterone and venous renin were measured in 77 patients. The differences in the levels of acute phase proteins, the degree of lung damage and the severity of COVID-19 were compared between patients with and without hypokalemia.

Results. Hypokalemia was found in 19 of 77 patients (25%): the median potassium level in hypokalemia and eukalemia group was 3,1 [2,8–3,3] and 4,1 [3,9–4,5] mmol/L, respectively (p = 0,001). Plasma aldosterone and renin levels in patients with and without hypokalemia did not differ significantly: aldosterone 76,0 [57,7–121,5] and 70,9 [26,3–113,8] pg/ml (p = 0,23), renin 17,0 [8,5–47,2] and 11,0 [6,5–38,1] pg/ml (p = 0,35), respectively. Differences in the degree of lung tissue damage, acute phase proteins, severity of COVID-19, length of hospitalization and mortality in patients with and without identified electrolyte disturbances were also not significant.

Conclusions. Our results showed that there were no laboratory signs of RAAS hyperactivation in COVID-19 patients with registered hypokalemia. Identification of the cause and clinical significance of hypokalemia among patients with COVID-19 needs to be specified.
Metabolic effects of ramipril and indapamide in hypertensive patients with non-alcoholic fatty liver disease
Authors: Statsenko M. E. , Streltsova A. M.
Published: October 2021

Objective. To assess the effects of combined antihypertensive therapy with ramipril and indapamide on insulin resistance, carbohydrate, lipid and purine metabolism, as well as the structure and function of the liver in hypertensive patients with non-alcoholic fatty liver disease (NAFLD).

Design and methods. In a pre-post study, we included 30 patients with hypertension (HTN) 1–2 degrees in combination with NAFLD (Fatty Liver Index (FLI) > 60) aged 45 to 65 years. Patients discontinued antihypertensive therapy 5–7 days before the initial examination. After that one of the fixed combinations of ramipril (2,5/5 mg/day) and indapamide (0,625/1,25 mg) were prescribed along with the lifestyle and weight reduction recommendations (the Mediterranean type of diet, a decrease in calorie intake by 500–1000 kcal from baseline, and physical aerobic exercise at least 150 minutes per week). All patients underwent clinical examination, measurement of office blood pressure (BP), ambulatory BP monitoring (ABPM), anthropometric parameters, assessment of the visceral obesity index (VAI), anthropometric parameters, VAI, the degree of adipose tissue dysfunction (ATD), the percentage of visceral and subcutaneous fat by the bioelectrical impedance method. We also assessed lipid, carbohydrate, purine metabolism and the structural and functional state of the liver before and after the treatment.

Results. After 24-week therapy with a fixed combination of ramipril and indapamide (average dosage of 4,04 ± 1,24 and 1,01 ± 0,31 mg, respectively) HTN patients with NAFLD achieved target BP. There was a decrease in both office systolic BP (SBP) (p < 0,001) and office diastolic BP (DBP) (p = 0,007) in 100 % of patients, as well as in ABPM indices. We observed a decrease in waist and hip circumferences (p ≤ 0,001 and p ≤ 0,001, respectively), the proportion of subcutaneous (p = 0,0134) and visceral (p = 0,002) fat. The number of patients with normal ATD increased (p = 0,030), while the proportion of patients with dysfunction decreased (p = 0,039). There was also a significant increase in high-density lipoprotein cholesterol (p = 0,027) and a decrease in insulin resistance (p = 0,002) and metabolic index (p = 0,030). We also found an improvement in carbohydrate metabolism with no change in purine metabolism. There was a favorable effect on the liver structure and function, and the number of patients with high alaninaminotransferase > 40 U/L decreased (5 (16,7 %) vs 0, p = 0,026).

Conclusions. Twenty-fourweek treatment with a fixed combination of ramipril and indapamide, together with recommendations for lifestyle changes and weight loss, led to a significant decrease in BP levels, the severity of insulin resistance, and visceral obesity. In addition, the treatment had a beneficial effect on the parameters of carbohydrate and lipid metabolism, as well as liver structure and function (decreased severity of steatosis and fibrosis).
EXPERIÊNCIA DE PROFESSORES-TUTORES NA MUDANÇA METODOLÓGICA DO CURSO DE ADMINISTRAÇÃO 100% EAD EM UMA IES PRIVADA
Authors: Kuabara Flávia Harumi Souza , Coelho Tavany Cibele , Bustamante Ana Carolina de Melo
Published: October 2021

A pesquisa discorre sobre o desenvolvimento do ensino à distância e as possibilidades dialógicas no processo de ensino-aprendizagem por meio da tecnologia da informação, bem como a inserção de uma tecnologia estabelecendo uma nova dinâmica no processo de comunicação. Objetiva-se apresentar a mudança metodológica do curso de Administração 100% a distância de uma IES privada a partir da perspectiva dos professores-tutores. Para tanto, este trabalho caracteriza-se como um relato de experiência como método de pesquisa qualitativa. Segundo Domingues (2016), caracteriza-se como uma narrativa trazendo vivências educacionais contribuindo para conhecimentos pedagógicos. Os processos da mudança da metodologia do curso de Administração 100% EaD, foram acessados por meio de entrevistas aplicadas a professores-tutores que vivenciaram as duas metodologias, e professores-tutores que apenas conheceram a experiência dos encontros virtuais, além de dados secundários que demonstram a adesão dos estudantes às aulas virtuais. Após as mudanças realizadas, o encontro virtual é visto pelos professores-tutores como um recurso que trouxe aspectos positivos, pois é de fácil acesso e o aluno não precisa estar síncrono no momento de sua realização em função da possibilidade de assistir ao encontro gravado, além de fazer com que o professor-tutor inove com didáticas pedagógicas e tecnológicas. Porém, por outro lado, a transformação da videoconferência em videoaula pode indicar conflitos estruturais dos recursos afetando a fluidez da comunicação, até mesmo podendo ser a causa do desinteresse por parte do aluno.
 
Palavras-chave: EaD. TICs. Encontro Virtual. Papel do Professor-tutor.
Diseño de una herramienta para la detección de fallos en sistemas multirrotores
Authors: Loría-Quesada Dilan Andrey
Published: October 2021

Los vehículos no tripulados (UAV) con multirrotores, cuentan con un sistema de control que se enfoca principalmente en buscar la estabilidad del vehículo durante el vuelo, sin embargo, no le permite detectar o prever cuando se presenta un fallo, y muchas veces no responde de la mejor manera. En este artículo se presenta inicialmente 9 categorías de fallos que se podrían encontrar durante el vuelo de un UAV, además se presenta el diseño de una red neuronal recurrente capaz de detectar patrones en las series de datos tomadas de un conjunto de sensores, montados sobre el dron. Se presenta la comparación de dos redes diferentes, la LSTM y la GRU, donde se demuestra que la red GRU es la más apropiada para este tipo de problema, obteniéndose hasta un 97% de éxito con los datos de entrenamiento utilizados. Además, se propone una respuesta a los fallos por medio de un protocolo de comunicación llamado MAVLink, que informaría al usuario de la presencia del fallo, además de desconectar el motor de ser necesario.
Efecto de una dieta sin antibióticos, coccidiostatos y aminoácidos sintéticos en pollos sexados Cobb 500
Authors: Sánchez Quinche Angel Roberto , Muñoz Izquierdo Carla Dennisse , Jurado Correa Juan Marcelo , León Armijos Erika María , Pimbosa Ortiz Dioselina Esmeralda
Published: October 2021

La presente investigación se desarrolló en el área experimental de la Granja Santa Inés perteneciente a la Facultad de Ciencias Agropecuarias de la Universidad Técnica de Machala-Ecuador, con la finalidad de evaluar el efecto de una dieta sin antibióticos, coccidiostatos y aminoácidos sintéticos, administrada a pollos Cobb 500 sexados sobre los parámetros productivos: Peso vivo, consumo de agua y alimento acumulado, conversión alimenticia, mortalidad, peso ante mortem, peso de la canal y porcentaje de rendimiento de la canal. Se empleó un DCA, en el cual se utilizó un único factor a manipular, el balanceado, separando los machos de las hembras, de una muestra de 100 aves, aplicando una réplica por sexo, dando como resultado 4 unidades experimentales (jaulas), con 25 unidades muestrales (pollos) por replica, las jaulas fueron distribuidas con un número 1 y 4 (hembras), 2 y 3 (machos),  cuyos datos se procesaron semanalmente. Para el análisis estadístico, se empleó el programa Statgraphics Centurión XV.I.®, aplicando un ANOVA y para establecer las diferencias entre las medias se usó el procedimiento de comparación múltiple de Bonferroni con un nivel del 95,0% de confianza. Los resultados muestran que los machos a partir de la 2da semana presentan los mejores pesos, así como el mejor peso de la canal, mientras que en el porcentaje de rendimiento de la canal y consumo de agua de bebida destacan las hembras sobre todo en los  últimos días del experimento. Demostrando un efecto marcado en algunas variables, al someter a los sexos a una dieta especial.
Análisis de alternativas de producción de semilla vegetativa de Arracacia xanthorrhiza Bancroft en Tolima, Colombia
Authors: Atencio Solano Liliana Margarita , Villamil Carvajal Jorge Enrique , Garnica Montaña Johanna Paola , Martínez Reina Antonio María
Published: October 2021

La propagación de material vegetal en el cultivo de arracacha se realiza comúnmente de forma vegetativa a través de semilla asexual, esta actividad ha permitido su multiplicación y conservación en el tiempo. El material vegetal disponible es de baja calidad, afectando el desarrollo y rendimiento potencial del cultivo y por ende los ingresos del productor. El objetivo de la investigación fue el de analizar comparativamente dos tecnologías de producción de semilla de arracacha: Tecnología local y tecnología Agrosavia. La información para la tecnología local se obtuvo de encuestas aplicadas a los agricultores y la selección se hizo mediante la técnica de muestreo determinístico y para la tecnología Agrosavia a través de registro de datos y costos de producción en lotes de investigación a escala comercial. Se aplicaron estadísticas descriptivas y cálculo de los indicadores de retorno económico para las dos situaciones. Los resultados muestran que el uso de semilla de calidad permite obtener mayor producción de semillas (251.559 unidad ha-1) y raíces tuberosas (25.875 kg ha-1), siendo superior a la tecnología local en 14% y 28% respectivamente; de esta forma, el productor de arracacha adquiere mayor eficiencia económica al obtener menor costo unitario por kilo producido y mejor ingreso neto con una tasa de retorno marginal de 316,45. Los resultados alcanzados son de utilidad para agricultores, empresas y entidades que deseen producir semilla de calidad y apoyen el sistema productivo de arracacha en Colombia.
Produção de semijoias em Limeira - SP: conexões entre vida, trabalho e família
Authors:   Universidade Estadual de Campinas,   Universidade Estadual de Campinas,   Universidade Estadual de Campinas
Published: October 2021

Baseado em pesquisas acadêmicas o livro apresenta as múltiplas facetas do trabalho na produção de semijoias de Limeira-SP. No contexto da modernidade, das mudanças tecnológicas o mundo do trabalho é apresentado, revelando as cadeias produtivas de semijoias e seus arranjos, com a existência de trabalho formal que geralmente se interconecta ao trabalho informal, doméstico e precarizado. O “trabalho de rua” desvela “as diferentes camadas das semijoias”. No entanto, não é menos importante a constituição dos saberes de ofício, da experiência e da criatividade das mulheres, majoritárias neste contexto, apesar do cenário de dificuldades e pressões internas e externas, mostrando facetas de beleza, delicadeza e criação. A mobilização da inteligência e a iniciativa permitem suplantar o que não está previsto, as insuficiências e contradições dos sistemas técnicos.
KLASIFIKASI KAIN KHAS BATIK DAN KAIN KHAS SASIRANGAN DENGAN MENGGUNAKAN METODE CONVOLUTIONAL NEURAL NETWORK
Authors: Ihdal Ihdalhubbi Maulida
Published: October 2021

Di Indonesia terdapat 33 macam jenis kain khas, diantaranya adalah kain batik dan sasirangan. Kain batik dibuat dengan cara mempola, melukis menggunakan lilin yang sudah dicairkan, pewarnaan, membatik Kembali dan mencucinya untuk menghilangkan lapisan lilinya, sedangkan kain sasirangan yaitu dengan dijelujur dengan pola dan dicelupkan ke pewarna kain. Banyak jenis dari kain batik dan kain sasirangan sehingga tidak mudah membedakan yang mana kain sasirangan atau kain batik. Selain itu banyak bentuk pola batik yang hampir mirip dengan motif sasirangan. Pada kasus ini perlu dilakukan penelitian yang dapat mengklasifikasikan antara kain batik dan kain sasirangan agar masyarakat tidak menyamakan pola batik dengan pola sasirangan. Metode yang dipergunakan untuk melakukan klasifikasi ini yatu dengan model deep learning pada metode Convolution Neural Network (CNN). Deep Learning memiliki kemampuan sangat baik dalam melakukan klas-ifikasi objek pada sebuah citra dalam perkembangan teknologi GPU acceleration. Kemampuan klasifikasi yang dilakukan deep learning menerapkan metode CNN dengan dua tahap yaitu melakukan feedforward pada klasifikasi citra dan melakukan tahap pembelajaran menggunakan metode backpropagation. Sebelum melakukan dua tahap dari metode CNN tersebut perlu melakukan praproses yaitu dengan menerapkan metode wrapping dan cropping agar objek yang diklasifikasi dapat lebih terfokus dan selanjutnya metode feedforward dan backpropagation melakukan training. Setelah melakukan training maka dilakukan testing dengan metode feedforward dimana bobot dan bias diperbaharui sehingga menghasilkan akurasi sebesar 91,84% dengan melakukan iterasi sebanyak 20 pada data training dan hasil akurasi pada saat melakukan testing sebesar 99,73%.
PENDEKATAN BERBASIS KECERDASAN BUATAN DENGAN METODE NAÏVE BAYES UNTUK WEBSITE BAZNAS
Authors: Gunawan Endi , Wahyudi Johan , Sari Yuslena
Published: October 2021

Badan amil zakat nasional (BAZNAS) adalah badan resmi nasional dalam menyalurkan zakat. Zakat adalah kewajiban umat Islam. Hal tersebut dijelaskan dalam kitab suci Alquran. Zakat perlu disalurkan dengan adil. Banyaknya data penerima zakat menyebabkan penyaluran sering terkendala. Dengan klasifikasi zakat antara fakir dan miskin akan menjadi solusi untuk kendala data yang banyak. Teknik kecerdasan buatan yang digunakan pada penelitian ini adalah Naïve Bayes Classifier. Ini adalah teknik klasifikasi berdasarkan Teorema Bayes dengan asumsi independensi antar prediktor. Secara sederhana, pengklasifikasian Naive Bayes mengasumsikan bahwa keberadaan fitur tertentu di kelas tidak terkait dengan keberadaan fitur lainnya. Label data penerima zakat ini ada dua, yaitu fakir dan miskin. Kecerdasan buatan sebagai metode dalam pembuatan prototype sistem pada website BAZNAS dalam penentuan penerima zakat. Pengukuran performa metode naïve bayes classifier menggunakan confusion matrix. Hasil dari metode naïve bayes classifier dalam mengklasifikasi penerima zakat cukup baik yaitu 96%.
ANALISIS PERBANDINGAN PERFORMA PEMROGRAMAN SEKUENSIAL DAN PARALEL DENGAN SKEMA UJI MATRIX, FILTER DAN QUICK SORT
Authors: Rahmatullah Griffani Megiyanto , Fajar Zulkarnain Andry , Reza Hidayat M.
Published: October 2021

Komputasi sekuensial merupakan sebuah proses untuk melakukan pemecahan masalah dengan melakukan setiap langkah secara berurutan. Konsekuensi pemecahan sebuah masalah dengan menggunakan komputasi sekuensial adalah sebuah hasil akan muncul apabila langkah pengerjaan telah dilakukan. Pengembangan teknologi dari komputasi sekuensial adalah kom-putasi paralel yang melibatkan penggunaan sumber daya secara bersamaan. Khusus pada bidang IT, sumber daya tersebut dapat berupa core processor atau juga dimungkinkan untuk melibatkan graphical unit. Skema uji yang dilakukan yaitu ber-fokus pada perbandingan performa komputasi sekuensial dan komputasi paralel. Skema uji tersebut terdiri dari pengujian perkalian matrix, proses filter sebuah gambar, dan proses quick sort. Hasil skema uji 1 menunjukkan bahwa komputasi paralel dapat melakukan perkalian dengan dimensi 2000x2000 dengan hasil berkisar 4x lebih cepat dibandingkan komputasi serial. Berikutnya, hasil skema uji 2 menunjukkan proses filter dapat dilakukan oleh komputasi paralel dengan efisiensi 50% lebih baik menggunakan 4 buah core. Terakhir, hasil skema uji 3 menghasilkan nilai efektivitas tertinggi menggunakan CUDA yaitu berkisar 96% dengan proses quick sort pada data sebesar 32Mb.
Social Criticism in Hijaz Yamani's Poetry Literature entitled Human Rights (HAM)
Authors: Subiyakto Bambang , Putra Muhammad Adhitya Hidayat , Handy Muhammad Rezky Noor , Syaharuddin Syaharuddin
Published: October 2021

Keberadaan karya sastra mampu mengkomunikasikan pengalaman masyarakat dalam kondisi dan situasi tertentu. Adapun satu diantara karya sastra tersebut adalah puisi. Puisi dapat tergolong dalam suara kritik sosial ditangan seorang penyair. Penelitian ini bertujuan untuk mendeskripsikan bagaimana kritik sosial dari penyair lokal Hijaz Yamani. Kritik sosial yang diinternalisasikan dalam puisi yang berjudul Hak Asasi Manusia (HAM). Metode yang digunakan untuk menguraikan subjek penelitian adalah metode deskriptif. Namun, demikian, penelitian ini menekankan pada seleksi dokumen sekunder untuk menunjang hasil penelitian. Hasil penelitian mendeskripsikan dalam Puisi Hak Asasi Manusia (HAM), Hijaz Yamani, beberapa puisinya memuat kritik sosial terhadap berbagai penyimpangan yang terjadi dalam pembangunan dan perlu kita terima secara adil sebagai masukan untuk menyegarkan kehidupan bermasyarakat, berbangsa dan bernegara. hak asasi manusia sebenarnya memiliki keterbatasan, yaitu bahwa hak asasi manusia adalah hak asasi manusia lainnya. Hak asasi manusia memiliki topeng yang harus diwaspadai. Penyair mengungkapkan kritiknya sekaligus mengingatkannya akan hak asasi manusia yang sesungguhnya.
Experience in Selection of Cavitation-Resistant Steels for Inducers of Centrifugal Pumps of JSC "VNIIAEN" Specialization
Authors: Kostornoi Oleksandr , Kucenko Valentyna , Laktionov Michail , Tkach Pavlo , Pidopryhora Nataliia , Makhanova Тetiana
Published: October 2021

To formulate the problems of increasing the resistance to cavitation erosion of the hydraulic parts of centrifugal pumps by selecting the most suitable steel grades and to review the experience of using cavitation-resistant steels for inducers of centrifugal pumps of JSC “VNIIAEN” specialization. Analytical and statistical analyses were carried out using research and experimental development data of cavitation-resistant steels for inducers of centrifugal pumps at JSC "VNIIAEN", as well as using data from open access publications. The article deals with the problem of centrifugal pump hydraulic part failure caused by cavitation. It has been actually demonstrated that the most effective way to improve the cavitation performance of centrifugal pumps is to use an inducer upstream of the first stage impeller. Therefore, the study of cavitation-resistant steels was carried out on inducers which are most exposed to cavitation when operating under condition of developed cavitation. The results of tests carried out on experimental model test rig and full – scale pumps are presented. The selection of steels resistant to cavitation has been optimized. The relationship between the chemical and mechanical properties of steels and resistance to cavitation is shown. In addition, the essential role of structural properties of steel is shown in terms of heat of steel 08Х15Н4ДМЛ. The article provides a rationale for the fact that the potential for improving the cavitation-erosion properties of the hydraulic parts of centrifugal pumps solely by improving their hydrodynamic characteristics is practically exhausted; therefore, more attention should be paid to the search for cavitation-resistant steels used for the manufacture of hydraulic parts. It is shown that in order to achieve the best cavitation-erosion properties, it is necessary to provide a certain interaction of the selected chemical and mechanical properties of materials. The possibility of achieving better resistance to cavitation erosion by modifying the melting process is shown in terms of steel 08Х15Н4ДМЛ.
Investigation of shape stability of semi-finished samples in the form of a ring made of plastic ceramic material based on SiC, obtained by injection molding
Authors: Psiarnetska Tetiana , Tsysar Maksym , Lyeshchuk Oleksandr
Published: October 2021

The concept of form stability is considered. A semifinished product in the form of a ring from a thermoplastic mass based on SiC powder has been made on the installation for injection molding developed at the Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine  in accordance with the established technological parameters optimized by the results of computer modeling. Schemes of loading and dividing the ring into samples in the form of prismatic segments are presented. A technique for the preparation of experimental samples is proposed. The study of the compressive strength of the samples from the injected semi-finished product has been carried out on the FP-5 mechanical test machine and a corresponding здще of its change has been constructed. The formation of a barrel shape during compression tests of samples, both along the radial and tangential directions, has been established. The values of the minimum and maximum loads at which the samples are destroyed have been determined. An increase in the compaction of the thermoplastic mass around the injection point has been experimentally proved. The scheme and the actual image of crack distribution as a result of destruction of samples have been presented. It is shown that the failure occurs in the area of the presence of the calculated parting lines, which have become stress concentrators.
Аппроксимация кумулятивного распределения огибающей сигналов в радиоканалах с произвольным рассеянием
Authors: Калюжный Александр Яковлевич
Published: October 2021

Предложен метод аппроксимации кумулятивной функции распределения (КФР) огибающей сигнала на выходе произвольного радиоканала на основе гамма-распределения. Частным случаем предложенного подхода является известный метод аппроксимации Накагами. Однако, в отличие от метода Накагами, в работе строго показана сходимость КФР произвольной неотрицательной статистики к предлагаемой асимптотической КФР, и определены условия такой сходимости. Предложенный метод обеспечивает возможность учета вида обработки приемного устройства. Использование предлагаемой аппроксимации проиллюстрировано на примере канала с аддитивным белым гауссовским шумом без памяти, однако возможности его применения значительно шире. Показано, что специфика модели канала сводится к единому параметру, который в работе назван индексом мерцаний канала. Выполнены расчеты индекса мерцаний для нескольких моделей каналов, на основе которых проведен анализ погрешностей предлагаемой аппроксимации КФР. Анализ показал, что в практически значимом диапазоне значений КФР і 0,5 относительная погрешность аппроксимации находится в пределах нескольких процентов. Проиллюстрирована возможность относительно простого статистического описания новых моделей каналов, традиционное описание которых наталкивается на существенные математические трудности. Предложено многолучевое обобщение модели канала TWDP, названное в работе каналом MWDP.
Улучшение внеполосных характеристик волноводно-планарных Е-плоскостных фильтров
Authors: Омельяненко Михаил Юрьевич , Романенко Тарас Владимирович , Жук Сергей Яковлевич , Туреева Ольга Васильевна
Published: October 2021

В статье представлены результаты разработки новых волноводно-планарных фильтров с высокими параметрами избирательности. Новые фильтры на свернутых металлических структурах с полюсами характеристики затухания, ориентированные на улучшение селективности вблизи полосы пропускания фильтра, выполнены по полностью симметричной топологии, что улучшает воспроизводимость характеристик, технологичность, и снижает стоимость при производстве. Предложенные в работе фильтры на металло-диэлектрических структурах построены на резонаторах со ступенчатым изменением импеданса с сохранением топологии типа «in-line». Они позволяют гарантированно расширить полосу заграждения до границ рабочей полосы частот волновода и значительно увеличить уровень вносимого заграждения, по сравнению с исходными фильтрами на однородных резонаторах. При этом типичная степень сокращения линейных размеров фильтра составляет ~30%. Также показано, что предложенные фильтры формируют полюс характеристики затухания вдали от полосы пропускания фильтра, что позволяет достичь высокой степени заграждения при малом числе резонаторов. Измеренные характеристики изготовленных образцов фильтров хорошо согласуются с результатами симуляции.