bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence of Financial Literacy, Financial Behavior, and Income on Investment Decisions (2018 Student Case Study for Management Study Program Universitas Muhammadiyah Sumatera Utara)
Authors: Wahyuni Sri Fitri , Radiman Radiman , Nara Rita
Published: August 2022

An investment decision is to set aside some stages to try to obtain investment returns or profits in the future. One of the factors needed to make an investment is capital or funds. The author's goal is to see the effect of financial literacy, financial behavior, income from decisions on students of the faculty of economics, management study program class of 2018. The number of samples in this study were 84 and using the Slovin formula. The technical analysis in this study uses multiple linear regression analysis, multiple correlation, termination, t test and F test. The results of this study indicate that financial literacy (X1) has a positive and significant effect on entry decisions (Y). Financial behavior (X2) has no effect on successful decisions (Y). Income (X3) has no effect on successful decisions (Y). Financial literacy, financial behavior, income simultaneously have a significant effect on investing decisions (a case study of students of the 2018 class of management study program at the Muhammadiyah University of North Sumatra).
The Effect of Return on Investment, Basic Earning Power and Investment Opportunity Set on Dividend Payout Ratio (Study of Infrastructure Firm Listed at Indonesia Stock Exchange In 2017- 2021)
Authors: Fauziah Rahma Lia , Norisanti Nor , Daniel Deni Muhammad
Published: August 2022

The aim of this research is to find out how influential the of Return on Investment (ROI), Basic Earning Power (BEP) and Investment Opportunity Set (IOS) on the Dividend Payout Ratio (DPR) of infrastructure companies listed in Indonesia Stock Exchange in the periode 2017-2021. The sample used in this study was 7 companies that had been selected using the purposive sampling technique. The method used in this study is descriptive and associative research methods with a quantitative. The data analysis technique used multiple linear regression through the SPSS version 16 application. Simultaneously, from the researches showed that Return on Investment, Basic Earning Power and Investment Opportunity Set with proxy Market to Book Value of Equity Ratio did not significantly affect on the Dividend Payout Ratio. Based on the coefficient of determination test is 0.372, it can be interpreted that the effect of Return on Investment (ROI), Basic Earning Power (BEP) and Investment Opportunity Set (IOS) on the Dividend Payout Ratio (DPR) is 13.83%. The remaining 86.17% was influenced by other factors that were not addressed in this study.
Islamic Perspectives in the Provision of Wages (Ujrah) (Empirical Study of The Qur'an and Interpretation)
Authors: Julita Julita , Hasibuan Lailan Safina
Published: August 2022

Economic wages are the price that must be paid to employees for their services in the production of wealth, like other factors of production, in other words, wages are the price of labor paid for their services and production. To clarify the position of wages, the Ministry of Manpower through the Decree of the Minister of Manpower No. 13 of 2003 concerning the minimum wage explains several functions of wages, including; First, wages function to meet minimum basic needs for workers and their families. Second, employers in providing labor wages are calculated based on the results of production. Third, in industrial relations Pancasila, labor wages are not only part of the production costs but also have a social function, namely to meet the needs of a decent life for workers and their families. Fourth, realizing a sense of justice in the context of humanizing humans. Fifth, as an effort to equalize income.
Recruitment needs of the Russian Arctic economy: Future outlook
Authors: Efimov I. P. , Gurtov V. A. , Stepus I. S.
Published: August 2022

The article presents the results of a large­scale study devoted to the formation of forecast indicators of recruitment needs of the Russian Arctic economy as the most important geostrategic territory of the country. Information about them is presented in regional, industry and professional terms. The basic and additional sources to ensure these needs of the Russian Arctic economy have been identified. It is concluded that there is a serious shortage of the internal labor resources of the Arctic territories, hence the need to attract additional labor force, including for the implementation of investment projects. It is shown that the current situation in the system of training qualified specialists in the Arctic territories contradicts the long­term plans for the Russian Arctic development. In the context of the implementation of the state’s new Arctic strategy, the importance of building a well­thought­out state policy for staffing the Arctic territories, development of human capital sectors, and diversification of the Arctic economy is noted.
Nowcasting Russia’s key macroeconomic variables using machine learning
Authors: Gareev M. Y. , Polbin A. V.
Published: August 2022

The article developed a methodology for nowcasting and short-term forecasting key Russian macroeconomic aggregates: real GDP, consumption, investment, export, import, using machine learning methods: boosting, elastic net, and random forest. The set of predictors included indicators of the stock market, money market, surveys, world prices for resources, price indices, and other statistical indicators of different frequency, from daily to quarterly. Our approach makes available a detailed examination of the changes in forecasts with the flow of new information. For most of the considered variables, a monotonic non-deterioration of the forecast quality was obtained with an expansion of available information. Furthermore, machine learning methods have shown significant superiority in predictive performance over naive prediction. The considered methods within the framework of the pseudo-experiment quickly showed a strong drop in real GDP, household consumption, and other variables in the context of the spread of the COVID-19 pandemic in the 2nd and 3rd quarters of 2020.
Is the Russian system of compulsory health insurance an insurance one?
Authors: Shishkin S. V.
Published: August 2022

The subject of the article is a discussion of the grounds for qualifying the system of compulsory health insurance (CHI) created in Russia as an insurance system, which is questioned by many experts. The article sys tematizes theoretical and methodological approaches to the description of social health insurance systems. A comparative analysis of the evolution of national systems of compulsory health insurance and systems of budgetary financing of health care was carried out from the standpoint of considering institutional changes as strengthening or weakening three types of regulation (state, societal, private), which ensure the performance of the functions of revenue collection, pooling of funds, purchasing of services. On this basis, general characteristics of modern models of social health insurance, which distinguish them from budgetary systems, are highlighted. The Russian CHI system can be qualified as a social insurance system in terms of the formation and pooling of financial resources, but as a hybrid, combining elements of the insurance and budgetary systems, in terms of the purchase of medical care.
Social protection in Russia: Choices of the future
Authors: Ovcharova L. N. , Sinyavskaya O. V. , Biryukova S. S. , Gorina E. A. , Nagernyak M. A. , Pishnyak A. I.
Published: August 2022

The role of social protection in supporting people’s well‑being, reducing poverty and inequality is difficult to overestimate in stable times, but its importance increases especially in times of crisis, as confirmed by the global shock of the COVID‑19 pandemic. Under the conditions of increasing uncertainty, a social protection system turns into a “safety cushion” — a macroeconomic and sociopolitical stabilizer. The purpose of the article is to show, based on the analysis of the main trends in the development of the Russian social protection system and considering the challenges of the current moment, possible alternative choices in its development in the mid‑term period. Authors use a broad definition of the social protection system, which includes non‑contributory measures of social protection (social assistance), contributory and non‑contributory pensions, minimum wages, and social services (long‑term care). The article contributes to the literature on economics and public administration, which focuses on social policy in times of economic crises. The article discusses the turn in social protection associated with the adoption of the national development goals in 2018. The authors analyze to what extent has the coronavirus pandemic affected the main challenges and problems facing Russian social protection; what were the key decisions in the field of anticrisis support for the population, and how they affected indicators of poverty and inequality. The article also presents recent research results on changes in public attitudes toward social protection as well as issues of using the time‑budget as a component of a comprehensive assessment of the population’s quality of life. In conclusion, the article discusses lessons which can be learned from the experience of the pandemic‑related crisis for the future development of the Russian social protection system, including in the conditions of turbulence that have arisen in 2022.
Work routines and risks of automation in the Russian labor market
Authors: Gimpelson V. E. , Kapeliushnikov R. I.
Published: August 2022

The study explores routine and non-routine content of job tasks across occupations in the Russian labor market. Each occupation contains a bundle of job tasks, which can be routine or non-routine, cognitive or manual. Occupations, in which most job tasks are routine, are under the risk of automation, and therefore their future is of concern. Our empirical analysis uses three main data sources that contain information in the detailed occupational breakdown: on employment, on the extent of routinization, and on annual labor incomes. This data set allows to estimate task indices for disaggregated occupations and different socio-economic groups and also present empirical estimates of wage penalties and premiums for workers with different job content. The calculations suggest that the proportion of jobs in which routine tasks tend to prevail is not large and hardly exceeds 10%. From this follows that a massive substitution of labor by machines or AI in foreseeable future does not look like a plausible option. Content of job tasks is expectedly associated with the level of pay: workers with non-routine cognitive tasks are better rewarded, and non-routine manual tasks are the most penalized. A polarization scenario feared by some observers does not seem a likely option in Russia for years to come.
A Terapêutica Cirúrgica e o Protocolo DH-II-90 no Tratamento da Doença de Hodgkin em Jovens e Adultos: um Estudo Ecológico
Authors: Oliveira Barbara Cardoso de , Zica Carlos Daniel Vaz Alves , Santos Giovana Carolina Canto dos , Faria Giovana Fernandes , Freire Guilherme Soares , Paim Helena Oliveira , Rezende Lucas Nunes Pimenta , Alencar Mayra da Silva Gonçalves , Faria Sabrina Thalita dos Reis
Published: August 2022

Introdução: A doença de Hodgkin (DH) e uma patologia que se inicia nos linfonodos, desenvolve-se nos tecidos neoplásicos e manifesta-se, majoritariamente, em jovens adultos. Objetivo: Correlacionar os resultados da terapêutica cirúrgica e do protocolo DH-II-90 em jovens adultos acometidos pela DH, e associa-los ao perfil epidemiológico, aos dados de mortalidade pela doença e a distribuição de recursos físicos no Brasil. Método: Estudo ecológico exploratório, com informações coletadas do Departamento de Informática do Sistema Único de Saúde (DATASUS), do Instituto Nacional de Câncer Jose Alencar Gomes da Silva (INCA), do Cadastro Nacional de Estabelecimentos de Saúde (CNES) e do Sistema de Informações Ambulatoriais do SUS (SIA/SUS), entre 2013 e 2021. O estudo, portanto, compara os resultados da terapêutica cirúrgica e do protocolo DH-II-90 associados a dados epidemiológicos, sendo o protocolo considerado o método mais eficiente, por apresentar melhores resultados quando comparado a métodos mais invasivos. Resultados: A Região Sudeste concentra maior número de leitos e procedimentos com números mais expressivos de pacientes diagnosticados de 0 a 29 anos. Em resumo, as taxas de mortalidade bruta por DH reduziram-se a partir de 1990, período no qual o protocolo DH-II-90 foi aplicado. Conclusão: O presente estudo fornece uma visão relevante sobre o perfil epidemiológico da DH e contribui para a comparação entre a terapêutica cirúrgica e o protocolo DH-II-90, sendo possível concluir que, apos a aplicação do protocolo, houve redução da taxa de mortalidade por DH no Brasil e no mundo.
Implementación de la política social focalizada y universal: salud y renta básica en México, 2008 - 2021
Authors: Santacruz Montealegre Christian Vaslaf
Published: August 2022

La política social pretende generar situaciones homogéneas en los sectores sociales más vulnerables, su finalidad es disminuir la brecha de desigualdad social que el sistema neoliberal trajo consigo. Que los individuos puedan acceder a los mínimos requerimientos para vivir dignamente es una de sus premisas, así el Estado focaliza los escasos recursos para lograr una universalidad de derechos básicos para las clases sociales más vulnerables. La pertinencia de la implementación de las políticas focalizadas en conjunto con la universal de salud y renta básica para para combatir la desigualdad en México es motivo del presente análisis de corte descriptivo - cuantitativo. Mediante estas políticas sociales se han disminuido algunos indicadores respecto a la pobreza, sin embargo, esta sigue incrementándose ante la precariedad laboral y servicios básicos insuficientes, pendientes que el Estado mexicano tiene para garantizar la plenitud y universalidad de los derechos humanos básicos en su población.
Estado de Bienestar Habilitante, política social solidaria y “Vida Ética” en América Latina
Authors: Valenzuela L. Iván
Published: August 2022

La pandemia del coronavirus 19, en América Latina, conlleva la oportunidad de una reconceptualización de un conjunto de problemas sociales a la luz de debates acerca de política social solidaria y renta básica universal. El presente artículo sostiene que lo anterior hace necesario reconsiderar las características centrales del Estado de Bienestar Habilitante nórdico y sus implicancias para América Latina, especialmente en términos del desarrollo humano y las capacidades de las personas, profundizando en la relación entre estos y los contextos sociales asociados. El artículo propone un robusto marco conceptual para abordar este desafío desde el enfoque sociocultural y la elaboración crítica de la teoría social de Hegel, contribuyendo a la revitalización intelectual de la socialdemocracia en los debates latinoamericanos.
Правові засади формування національної армії на початковому етапі Української революції (весна – осінь 1917 року)
Authors: Myshchak  I. M.
Published: August 2022

Метою статті є аналіз політики Української Центральної Ради, Генерального Секретаріату та військових організаційних структур щодо правового забезпечення формування національної армії на початковому етапі Української революції.
Методологія дослідження побудована на принципах історизму, об’єктивності й усебічного аналізу, а також міждисциплінарних підходах (зокрема, методах історії та правознавства).
Основні результати дослідження. Революційне піднесення першої половини 1917 р. призвело до формування численних патріотично налаштованих організацій українських військових. Більшість із них заявила про готовність формувати власні збройні сили і виступити на захист української державності. Основою легітимності подібних рішень стало визнання військових комітетів спочатку Тимчасовим урядом, а згодом і Українською Центральною Радою. При цьому додатковим елементом легалізації та легітимізації рішень військових про формування Української армії стали ухвали всеукраїнських військових з’їздів та визнання їх резолюцій Центральною Радою, а також включення військових делегатів до складу УЦР. Водночас політика УЦР та УГВК навесні – влітку 1917 р. була дуже обережною по відношенню до центральної російської влади та не виходила за межі окремих вимог національно-культурної автономії. Також керівництво УГВК намагалося погоджувати власні дії із військовим міністром Тимчасового уряду, боячись звинувачення у розвалі фронту та відповідальності за можливу окупацію України військами Четверного союзу. При цьому одним із головних прорахунків УЦР у військовому питанні стала відмова під тиском соціалістичних партій від створення професійної армії та бажання замінити її напівпрофесійними формуваннями «Вільного козацтва» й народною міліцією. Така політика значною мірою деморалізувала боєздатні українські військові частини, тож коли постала нагальна потреба захищати Україну та її владу в особі УЦР від більшовицької армії, – проукраїнських збройних сил залишилося обмаль, що, зрештою, і призвело до поразки українських визвольних змагань.
Legal protection against crime victims from social media Facebook over Roleplayer’s behavior
Authors: Rahmawati R. Yu. D. , Michael  T.
Published: August 2022

Індонезія є однією з країн з найбільшою кількістю користувачів Інтернету у світі. З розвитком Інтернет-світу людина окрім реального життя включається в кіберспільноту. Соціальні мережі стали необхідністю для сучасного суспільства. Однією з найбільш популярних є Facebook, який надає переваги комунікаційного майбутнього. Facebook містить багато спільнот чи асоціацій, однією з яких є асоціація Рольових гравців (Roleplayers). У Рольовій грі гравці грають ролі уявних або реальних персонажів, спільно створюючи історію.
Метою цього дослідження є з’ясування того, яким чином юридично захищений рольовий гравець, який став жертвою злочину в соціальній мережі Facebook.
Наукова новизна полягає в аналізі законодавчої політики щодо захисту жертв кібербулінгу на основі використання результатів емпіричного дослідження.
Емпіричне дослідження проведене з використанням якісних методів. Застосовано цілеспрямовану техніку вибірки, зосереджену на дослідженні рольового гравця (Roleplayer) у соціальній мережі Facebook.
Висновки. Виходячи з цього дослідження, рольовий гравець (Roleplayer), фанатично ставлячись до певної персони, ідолізує її, створює обліковий запис у соціальній мережі Facebook, ідентифікуючи себе з особою бажаного ідола, після чого взаємодіє та розігрує ролі з іншими рольовими гравцями. Таким чином, рольові ігри є фанатичною діяльністю для своїх кумирів. Розвиток і легкість рольових ігор у Facebook може мати негативні наслідки, одним із яких є поява злочинів, які можуть завдати шкоди іншим гравцям. Злочини, які поширені в рольовій грі, включають: кіберзалякування, словесні сексуальні домагання та шахрайство. Формою правового захисту рольових гравців, які стали жертвами злочинів у соціальних мережах Facebook, є ув’язнення та штрафи для винних.
Положення, що стосуються кібербулінгу, регулюються п. (3) ст. 27 і ст. 45 Закону № 19 від 2016 р., словесні сексуальні домагання в соціальних мережах регулюються п. (1) і (2) ст. 14 Закону № 12 від 2022 р., і шахрайство – п. (1) ст. 28 і п. (2) ст. 45 Закону № 19 від 2016 р., ст. 378 Кримінального кодексу Індонезії.
Однак перешкоди протидії злочинам у цій рольовій грі полягають в анонімності, яка є головною вимогою гри, адже жертва та злочинець не використовують свою справжню особу. Дослідженням робиться акцент на тому, що відсутня спеціальна політики, яка б регулювала безпеку у світі рольових ігор.
Удосконалення організації закупівельної логістики при управлінні ланцюгами постачань в умовах COVID-19
Authors: Sopotsko  O. Yu.
Published: August 2022

Метою статті є визначення впливу COVID-19 на закупівельну діяльність підприємств та стійкість ланцюгів постачань, а також надання відповідних рекомендацій по удосконаленню закупівельної діяльності за таких умов.
Наукова новизна статті полягає в обґрунтуванні в умовах COVID-19 можливостей більш широкого використання системи електронних закупівель, що дозволяє проводити більш ефективний пошук постачальників та забезпечує стійкість ланцюгів постачань; визначено вплив COVID-19 на зміни у функції роботи працівників, що призвело до активної цифровізації документообігу, цифрової діяльності підприємств у цілому та вплинуло на функціонування ланцюгів постачань.
Методологія. Теоретичну та методологічну основу дослідження становлять концептуальні положення менеджменту та теорії логістики. Використано метод порівняльного аналізу, синтезу й узагальнення для визначення стану закупівель за умов COVID-19 та метод системного і процесного підходу для обґрунтування актуального інструментарію по забезпеченню ефективності закупівельної логістики за сучасних умов.
Висновки. COVID-19 викликав кризу по всьому світу та вплинув на стійкість ланцюгів постачань, виникли збої у функціонуванні глобальних закупівель.
Підприємства зіштовхнулися з проблемою недостатньої кількості необхідних деталей та сировини для подальшого виробництва, що поставило нові виклики для закупівельної логістики.
COVID-19 вплинув і на виробництво та постачання продуктів харчування, але приватні підприємства й торговельні мережі почали більш широко використовувати систему електронних закупівель, що дозволило підвищити ефективність закупівельної логістики за таких умов.
Крім збільшення використання електронних закупівель, поширення набув й електронний документообіг, однією із причин цього стала зумовлена впливом COVID-19 трансформація функцій працівників, більшість із яких були змушені працювати дистанційно.
Отже, цифрові технології та постійні нововведення впливають на стійкість ланцюга постачань та ефективне функціонування закупівельної логістики при виникненні таких непередбачуваних ситуацій, як COVID-19.
Optimal time intervals for vaginal breech births: a case-control study
Authors: Spillane Emma , Walker Shawn , McCourt Christine
Published: August 2022

Background: Breech births are associated with a high rate of hypoxic injury, in part due to cord occlusion during emergence. Maximum time intervals and guidelines oriented toward earlier intervention have been proposed in a Physiological Breech Birth Algorithm. We wished to further test and refine the Algorithm for use in a clinical trial.

Methods: We conducted a retrospective case-control study conducted in a London teaching hospital, including 15 cases and 30 controls, during the period of April 2012 to April 2020. Our sample size was powered to test the hypothesis that exceeding recommended time limits is associated with neonatal admission or death. Data collected from intrapartum care records was analysed using SPSS v26 statistical software. Variables were intervals between the stages of labour and various stages of emergence (presenting part, buttocks, pelvis, arms, head). The chi-square test and odds ratios were used to determine association between exposure to the variables of interest and composite outcome.  Multiple logistic regression was used to test the predictive value of delays defined as non-adherence the Algorithm.

Results: Logistic regression modelling using the Algorithm time frames had an 86.8% accuracy, a sensitivity of 66.7% and a specificity of 92.3% for predicting the primary outcome. Delays between umbilicus and head >3 minutes (OR: 9.508 [95% CI: 1.390-65.046] p=0.022) and from buttocks on the perineum to head >7 minutes (OR: 6.682 [95% CI: 0.940-41.990] p=0.058) showed the most effect. Lengths of time until the first intervention were consistently longer among the cases. Delay in intervention was more common among cases than head or arm entrapment.

Conclusion: Emergence taking longer than the limits recommended in the Physiological Breech Birth algorithm is predictive of adverse outcomes. Some of this delay is potentially avoidable. Improved recognition of the boundaries of normality in vaginal breech births may help improve outcomes.
Innovative Learning Arts and Culture during the Pandemic in Junior High School
Authors: Fahruddin Ari Irfan , Cahyono Agus
Published: August 2022

The online learning is a new thing in learning cultural arts at Islamic Junior High School Al-Azhar BSB City Semarang, it is an interesting and challenging things because of the presence of students who come from several different places. During the COVID-19 pandemic, the teacher applied several different methods to make students more pro-active and think critically. Innovation begins with changing learning strategies, learning patterns and assessments in the learning process. This study aims to determine learning innovations in cultural arts subjects during the COVID-19 pandemic by using a qualitative descriptive approach method which interviews directly with teacher at Al-Azhar 29 Islamic Junior High School, BSB City Semarang. Data analysis using data triangulation with data processing techniques using data reduction, display data and conclusions. The results of this study indicate the existence of innovations in learning cultural arts at Al-Azhar 29 Islamic Junior High School, BSB City Semarang, including; improving learning strategies, learning media, learning management, and critical assessment systems for students.
Early expression of CD94 and loss of CD96 on CD8+ T cells after allogeneic stem cell tranplantation is predictive of subsequent relapse and survival
Authors: Verma Kriti , Croft Wayne , Pearce Hayden , Zuo Jianmin , Stephens Christine , Nunnick Jane , Kinsella Francesca AM , Malladi Ram , Moss Paul
Published: August 2022

Allogeneic stem cell transplantation is used widely in the treatment of hematopoietic malignancy. However, relapse of malignant disease is the primary cause of treatment failure and reflects loss of immunological graft-versus-leukemia effect. We studied the transcriptional and phenotypic profile of CD8+ T cells in the first month following transplantation and related this to risk of subsequent relapse. Single cell transcriptional profiling identified five discrete CD8+ T-cell clusters. High levels of T-cell activation and acquisition of a regulatory transcriptome were apparent in patients who went on to suffer disease relapse. A relapse-associated gene signature of 47 genes was then assessed in a confirmation cohort of 34 patients. High expression of the inhibitory receptor CD94/NKG2A on CD8+ T cells within the first month was associated with 4.8 fold increased risk of relapse and 2.7 fold reduction in survival. Furthermore, reduced expression of the activatory molecule CD96 was associated with 2.2 fold increased risk of relapse and 1.9 fold reduction in survival. This work identifies CD94 and CD96 as potential targets for CD8-directed immunotherapy in the very early phase following allogeneic transplantation with the potential to reduce long term relapse rates and improve patient survival.
La malnutrición infantil en Azuay: un problema social y sus determinantes
Authors: Rivera Jairo , Olarte Stephany , Rivera Nadya
Published: August 2022

La malnutrición infantil está compuesta por desnutrición y sobrepeso. En Ecuador, la desnutrición crónica es un tema alarmante, con más del doble del promedio de América Latina, y con sobrepeso superior al promedio; en este contexto, Azuay es una provincia preocupante ya que presenta indicadores de desnutrición y sobrepeso más altos que el promedio nacional. El objetivo de esta investigación es analizar los determinantes de la malnutrición infantil en Azuay, su evolución y particularidades. El estudio es cuantitativo, basado en datos de las Encuestas de Condiciones de vida 1999-2006-2014, y emplea metodología de análisis de regresión probabilística. Los resultados del estudio indican que la malnutrición infantil presenta determinantes diversos en desnutrición y sobrepeso, con variaciones en el tiempo, por ello se recomienda el desarrollo de políticas públicas específicas
Clima escolar: conducta violenta manifiesta y relacional entre los estudiantes en instituciones educativas en el Ecuador
Authors: Almeida Monje Elka , Jiménez Bonilla Dennis , Ochoa Fernández Carlos , Zambrano Villalva Carmen
Published: August 2022

El Ecuador está viviendo, en lo político, económico, social y educativo procesos de cambios, y es en este último transitar por donde se centrará esta investigación para intentar de cierta manera dar una explicación al analizar el clima escolar en las instituciones educativas de la zona 5 de Milagro y sus alrededores y las conductas manifiestas de los estudiantes, cambio a nivel del sistema educativo. En el plan nacional del buen vivir en el objetivo 4 que se refiere a fortalecer las capacidades y potencialidades de la ciudadanía, hace referencia a cómo mejorar los procesos educativos en su aspecto bio-psico-social y la salud mental de quienes conforman el sistema educativo en especial atención a los estudiantes. Es por esta razón que este estudio es de relevancia para el estudio de las conductas y su relación con el entorno que lo rodeo.
Hábitos de uso de las fuentes de información de los turistas canadienses que visitan La Habana
Authors: Cespedes Pavot Suleena , Abreu Rodríguez Daikel , Sánchez Borges Yennifer
Published: August 2022

La búsqueda de información supone activar el conocimiento almacenado en la mente del individuo o adquirir nuevos conocimientos del entorno. Este proceso es esencial para poder incrementar el conocimiento sobre un destino turístico básicamente, según Gitelson y Crompton (1983) por tres razones: (1) las vacaciones se consideran compras de alto riesgo, (2) el producto turístico es intangible, y (3) falta de conocimiento del destino. Los turistas han aprendido a utilizar de manera especializada los diferentes canales y herramientas en función del objetivo comunicativo, resultandos cruciales los hábitos de búsqueda de información en el proceso de selección del destino turístico, de manera especial si se trata de la primera visita al lugar y no de una visita repetida. En esta investigación se analiza el comportamiento de uso de las fuentes de información por los turistas canadienses que visitan el destino La Habana y su incidencia en las diferentes etapas su viaje.
Steroid Response in Autoimmune Hemolytic Anemia
Authors: Nazneen Shahela , Mahbub Mohammad Imtiaj , Choudhury Zulfia Zinat
Published: August 2022

Background: Auto-immune hemolytic anemia is an uncommon but not rare disorder. Steroid is the best and commonly used drug for this disorder because it is cheap, easily available and less toxic. But there are a few studies on evaluation of response of steroids in auto-immune hemolytic anemia in our country.
Objectives: The purpose of the study was to find out the mean duration for attaining response with prednisolone at the dose of 1 mg/kg body weight, to categorize the patients according to response criteria and to find out the adverse effects due to prednisolone.
Methodology: This was a longitudinal and prospective study done in Hematology department of Dhaka Medical College Hospital, Dhaka over a period of one and half year from January 2011 to July 2012. All diagnosed cases of auto-immune hemolytic anemia attending in the hematology department full filling the inclusion and exclusion criteria were included in the study. Data were collected by using a structured questionnaire after taking written consent and history and doing physical examination and relevant baseline investigations. Patients were followed up for two weeks and further physical examination and investigations were done during this time.
Result: Mean age of the patient was 33.08 year. Most of the patients (33.33%) belonged to <20 year age group. Progressive pallor, weakness and anemia were the most prominent clinical features (100%), followed by jaundice (50%), splenomegaly (50%), dyspnea (45.8%), hepatosplenomegaly (33.33%), palpable lymph nodes (8.33%) purpuric spot (2%), bleeding manifestation (2%) and bloody diarrhea (2%). No cause of autoimmune hemolytic anemia was found in 43 (89.5%) patients. Among 5 patients with autoimmune hemolytic anemia 3 (6.25%) had non-Hodgkin’s lymphoma, 1 (2.08%) had chronic lymphocytic leukemia and 1 (2.08%) had ulcerative colitis. DAT (Direct antiglobulin test) was found positive in 36 patients (75%) and both DAT and indirect antiglobulin test were found positive in 12 patients (25%). Out of 48 patients 32 patients (66.66%) responded within one week and the rest 16 patients (33.34%) responded within two weeks of starting treatment. 43 patients (89.58%) showed complete response and the rest 5 patients (10.42%) showed partial response.
Conclusion: Most of the patients responded completely within one week and no patients were found without response. So, Steroid (prednisolone) is very cheap and effective drug for the vast poor people of Bangladesh.
J Shaheed Suhrawardy Med Coll 2021; 13(1): 41-45
Tales of Hysteroscopic Evaluation of PPIUD with Missing String in a Tertiary Care Government Hospital
Authors: Perveen Ayesa , Zakaria Rooh E , Begum Hasina
Published: August 2022

Background: The safety and efficacy of the postpartum intrauterine device (PPIUD) has been documented worldwide with increasing institutional deliveries. It was relative new concept therefore a close observation should be kept on potential complication arising from it. Removal of an IUD can be easily done when the string is visible during speculum examination but the task become challenging when the string no longer visible.
Objectives: To evaluate the role of hysteroscopy for removal of PPIUD with missing string.
Methods: This descriptive study was conducted in tertiary government hospital over six months from July 2020 to December 2020. PPIUD clients with lost strings were included in this study. Before the procedure complete history about reason for retrieval, duration of insertion, complication related to IUD was recorded. Furthermore, speculum examination & USG was performed then decided for hysteroscopic evaluation and removal. Per-operative location of PPIUD in uterine cavity and any complication & associated pathology encountered were recorded. The size and model of hysteroscope also noted.
Results: Thirty one patients were included among them more than two third of PPIUD given following caesarean section (LSCS). Reason for PPIUD removal of most clients due to menstrual irregularities 29% displaced & fragmented CuT on USG 25.8% and desires for pregnancy. Nineteen respondents removed within three years due to complication like irregular menses ,displaced IUD on ultrasonography.. Most of the PPIUD 64.5% in normal location rest of them deviated from normal among those three PPIUD were inverted & tip of the five PPIUD near the external os. Arms of cu-T were embeded in five clients, some difficulties faces to remove those. Polyp were found in two clients with menstrual irregularities. Postoperative outcome of all patients were uneventful.
Conclusion: Hysteroscopy is a good modality for the removal of PPIUD with lost strings.
J Shaheed Suhrawardy Med Coll 2021; 13(1): 63-67
Modelado del Perfil de Temperatura para el Vuelo Suborbital EMIDSS-1
Authors: Padrón-Godínez Alejandro , Prieto-Meléndez Rafael , Mendoza-Bárcenas Mario Alberto
Published: August 2022

La medición física de las principales variables involucradas en las diferentes capas de la atmósfera ante un eminente cambio climático puede proporcionar registros que coadyuven al modelado, pronóstico, predicción y simulación del clima. En particular, el propósito de este trabajo se centra en el modelado del perfil de temperatura en diferentes etapas del vuelo, haciendo énfasis en la Tropopausa. El perfil fue obtenido por varios termómetros dentro y fuera del módulo “Experimental Module for the Iterative Design for Satellite Subsystems version 1” por sus siglas en inglés (EMIDSS-1) y registrados en la computadora de abordo. Este es un Proyecto de colaboración entre el Centro de Desarrollo Aeroespacial del Instituto Politécnico Nacional y del Instituto de Ciencias Aplicadas y Tecnología de la Universidad Nacional Autónoma de México. El módulo fue lanzado con la ayuda de la NASA en la misión FY19-FTS dentro de la plataforma 11MCF#697N en septiembre 2019 desde Fort Sumner, Nuevo México-EUA dentro del Programa Columbia Scientific Balloon Facility. Los perfiles se comparan con vuelos suborbitales similares con plataformas de grandes altitudes y estándares internacionales de la atmósfera para el estudio y predicciones entre la tropósfera y la estratósfera.
Obtención y Validación de Modelos de Presión Diferencial en la Sección de Impulsión de una Unidad Manejadora de Aire
Authors: García Vázquez Carlos Alberto , González Santos Ana Isabel
Published: August 2022

Este artículo aborda el problema de la identificación de la presión diferencial en una unidad manejadora de aire (UMA), haciendo especial énfasis en la validación de los modelos obtenidos. A pesar de que muchos autores se concentran solo en las variables: temperatura y humedad, por el probado ahorro energético de la aplicación de diversas estrategias de control avanzado sobre las mismas, otros estudios también muestran las oportunidades de ahorro a partir del control del flujo de aire. Todos estos trabajos tienen como denominador común el uso de modelos tanto en el diseño como en la evaluación de las estrategias de control propuestas. El trabajo aquí presentado destaca los aspectos tomados en cuenta durante la aplicación de la metodología de la identificación de sistemas en el proceso estudiado. Se exponen algunas de las principales dificultades que conlleva la aplicación de la misma en la industria y se proponen variantes, para, a pesar de ellas, obtener modelos que satisfagan las expectativas de sus futuros usuarios. En la validación se recomiendan, además de las pruebas que típicamente se hacen en la práctica de la identificación de sistemas, otros análisis sobre los modelos obtenidos, dada la variabilidad estocástica de la variable presión diferencial.
Análisis Comparativo de los Algoritmos Basados en Abejas y Hormigas en el Problema de la Esfera
Authors: Hernández-Ocaña Betania , Hernández-Torruco José , Chávez-Bosquez Oscar , Montané-Jiménez Luis G.
Published: August 2022

Dos algoritmos bio-inspirados en la naturaleza se implementaron con el fin de conocer y analizar su comportamiento al buscar una solución a un problema de optimización numérica bien conocido en el estado del arte como problema de la esfera. Asimismo, se buscó detectar aspectos comunes y particulares de ambos algoritmos que derivan en una convergencia prematura. Estos algoritmos son: el Algoritmo de Optimización de Colonia de Hormigas (ACO) y Colonia Artificial de Abejas (ABC). Ambos pertenecen al grupo de Algoritmos de Inteligencia Colectiva, los cuales simulan el comportamiento colaborativo de ciertas especies simples e inteligentes. ACO y ABC son escasamente utilizados debido a su poca popularidad en la solución de problemas de optimización numérica puesto que en un principio fueron desarrollados para problemas combinatorios. Los resultados de cinco experimentos son presentados dando como mejor algoritmo a ACO para el problema de la esfera.
Exposición al Default: Estimación para un Portafolio de Tarjeta de Crédito
Authors: Bambino-Contreras Carlos , Morales-Oñate Víctor
Published: August 2022

Este trabajo estima la exposición al incumplimiento sin hacer uso del factor de conversión de crédito, mecanismo habitual empleado en la literatura de estimación de pérdidas y sugerido por el Comité de Basilea. Para lograr este objetivo se ha identificado la distribución de probabilidad de esta variable (exposición al default), que posteriormente es estimada en partes (EAD = 0 y EAD > 0) mediante modelos lineales generalizados (logit y GLM-Gamma). Los resultados obtenidos son competitivos con los que se encuentran en la literatura. Esto muestra que la estimación simultánea de parámetros, así como la estimación separada arrojan resultados prometedores. Adicionalmente, el caso EAD > 0 es contrastado con un modelo MARS cuyo rendimiento es superior al GLM-Gamma. Estos modelos se aplicaron a un conjunto de datos de un portafolio de tarjeta de crédito de una entidad financiera del Ecuador.
Reestablishing Lacrimal Drainage by Canaliculorhinostomy after Dacryocystectomy: A Viable Option in Symptomatic Patients
Authors: Tara Shruthi , Panickar Neha , Puthur Derin
Published: August 2022

Purpose: To evaluate the outcome and efficacy of a modified technique of canaliculo-dacryocystorhinostomy (canaliculo-DCR) in the complete absence of lacrimal sac, as a means to reestablish lacrimal drainage in postdacryocystectomy (post-DCT) patients.Methods: A retrospective, nonrandomized interventional study including 15 proven and established post-DCT patients with intact canaliculi of at least 7 to 8 mm. The patients presented with bothersome tearing to the oculoplastic clinic from January 2017 to January 2018. Patients were operated by a single surgeon (ST). Procedure involved creating a bony ostium of optimum size, internal membranectomy and the nasal mucosal flap anchored appropriately to create a passage in line with the common canaliculus. Adjunctively bicanalicular intubation and mitomycin-C were used.Results: Of the 15 patients who were operated (10 female and five male patients), 14 (93.33%) had functionally and anatomically patent lacrimal passage after the modified canaliculo-DCR, one (6.66%) was symptomatically better with partial regurgitation of clear fluid. Three (20%) had tube prolapse after 1st month postoperatively, which although significant, was not related to the technique. They were repositioned as an office procedure and retained thereafter till removal, no other tube related or mitomycin-C related sequelae was seen. No intraoperative complication was encountered.Conclusions: With a success rate of 93.33% and a resultant patent lacrimal tear drainage passage and trivial complication such as tube prolapse, we can conclude, this technique of modified canaliculo-DCR in post-DCT patients is a safe and effective procedure with promising results, thereby avoiding cumbersome methods and maintenance of Jones tube while at the same time providing symptomatic relief to the patients.
The Effect of Wire Rope Material on Vibration Characteristics
Authors: DAL Hüseyin , BAKLACI Murat
Published: August 2022

Wire rope vibration isolators (WRI) are used to protect particularly sensitive and high technology products from severe dynamic loads such as shock and vibration. WRI is widely used in many industries, especially in the defense and space industry. In this study, the effect of rope material used in WRIs on vibration characteristics was experimentally investigated. WRIs were fabricated using nuflex, stainless steel and galvanized steel ropes as the main material component of the rope. Design and fabrication of 3 identical WRI models each with a rope diameter of 3 mm, namely Nufleks (NWRI), stainless (SWRI) and galvanized steel rope vibration isolator (GWRI), were performed. The produced WRI models were subjected to tensile-compression tests under different speed and pre-load conditions and then, force-displacement responses were obtained. In addition, dynamic vibration tests of WRI models were performed using the shaker system and accelerometers. As a result of the studies, it was observed that the rope material used in the WRIs significantly affected the vibration characteristics. When the quasi-static test results are examined, it is clearly understood that GWRI exhibits a more rigid characteristic compared to other models. At the same time, when the damping ratios obtained from hysteretic cycles are compared, it is clearly seen SWRI has the highest damping ratio. When the dynamic tests performed by shaker are examined, it is clearly seen that the isolator with the best vibration isolation characteristics is SWRI.
Experimental Approach to Monitoring the Degradation Status of Pipelines Transporting Hydrocarbons
Authors: Yahi Sarah , Bensmaili Aicha , Haddad Ahmed , Benmohamed Manel
Published: August 2022

Improve the reliability of the gas and oil transportation process is a primary objective of the pipeline designers because it interests the safety of the goods and the people, the availability and the performance of pipelines as well as the economy of the hydrocarbon transport. Corrosion is a present phenomenon that occurs inside and outside of buried pipes, causing the pipeline to be pierced, leading to gas and oil leaks and causes consequences of the major economic losses. In this context, our study focused on the corrosion monitoring of metals used in the transport of hydrocarbons by two approaches based on electrochemical techniques. Monitoring the evolution of the corrosion potential using an elaborated reference instead of a commercial reference electrode, and by electrochemical impedance spectroscopy (EIS) coupled with the gravimetric method. The obtained results showed the efficiency of our approach for the realization of a corrosion sensor intended for the monitoring of corrosion in pipelines.
Effect of Molasses on the Strength and Workability of Concrete with Cement Partially Replaced by Saw Dust Ash (SDA)
Authors: HARRIET NANDUGWA , JOEL MUBIRU , GEORGE IZIMBA , Jonas Byamukama
Published: August 2022

This study aimed at investigating the effect of molasses on the workability of concrete with Saw Dust Ash (SDA) as partial replacement of Ordinary Portland Cement (OPC) in normal strength concrete of C25/30. Concrete samples with varying percentages of SDA, Molasses by weight of cement was made, cured at 28 days and tested for workability and strength. Results of the study indicated that the slump values increased linearly with increase in percentage of molasses from 0.1% to 0.20% respectively. The 0.15% of molasses added to 10% replacement of cement with SDA gave a slump of 110 mm along with the highest Cylinder strength result of 30.2 Mpa at 28days. From the study, it was seen that the slump values remained in the range of 100-110mm for 0.10% and 0.15% of molasses added and this implied that molasses can maintain acceptable workability of concrete up to 0.15% by mass of cement.
Dispositions of Technological Knowledge in Teacher Candidates – An Analysis of Predictors
Authors: Johnson Frederick , Koβmann Joanna
Published: August 2022

In this paper, the impact of broader and more specific dispositions on technological knowledge (TK) in teacher candidates is analyzed. TK is the fundament on which the technological pedagogical and content knowledge (TPACK) model is built on. According to contemporary behavioral competence theory, the predictors will be tested as cognitive, affective and conative dispositions for TK. Thus, multiple regression models are utilized to test according predictors of performance based and self-reported TK as criteria (n = 460). In the first model, broader sense predictors such as general self-efficacy, basic motives, intelligence and personality are introduced as predictors. The second model adds more specific predictors such as technology commitment, motives, attitudes concerning information and communications technology (ICT). The third model adds private and study related technology use with different devices. A precedent base model controls for gender and age. For performance-based TK as dependent measure, the third model (R2 = .261) indicates that intelligence, extraversion, negative attitudes towards ICT and the private use of a PC function as the most powerful predictors. In explaining self-reported TK, the second model (R2 = .280) indicates that technology commitment  and negative attitudes towards ICT are predictors. In conclusion, the prediction pattern between performance-based and self-reported TK differs. An explanation might be a practice effect from actual technology use.