bluuebunny/crossref_metadata_2025 huggingface dataset:
A COVID-19 e os reflexos sociais do fechamento das escolas
Authors: Sobrinho Junior Joao Ferreira , Moraes Cristina de Cássia Pereira
Published: December 2020

Esta pesquisa tem por objetivo apresentar reflexos sociais que foram acarretados pelo fechamento das escolas por conta da pandemia da COVID-19. Para responder a tal cenário, se dispôs de pesquisa bibliográfica e documental a partir de jornais, legislação e documentos oficiais, sites e artigos científicos. E como resultado percebe-se reflexos potenciais nos alunos, professores e pais, tendo em vista que problemáticas derivadas desse fechamento como: a interrupção do aprendizado; alimentação escolar; adaptação dos professores a nova realidade tecnológica; pais sem preparação para as atividades em ensino remoto e em casa; desafio na melhoria e manutenção do ensino remoto; lacunas de assistência às crianças; aumento na taxa de evasão escolar; isolamento social das crianças; e, os desafios para validar e medir o aprendizado, tendem a afetar de forma direta e indiretamente esses indivíduos, principalmente aqueles que vivem em situação de vulnerabilidade e injustiça social. Isto posto, respostas a tais reflexos sociais devem advir das relações que entremeiam o Estado-escola-aluno-família de modo que o apoio mútuo poderá dar o suporte necessário a dirimir as consequências acarretadas pelo fechamento das escolas.
Reinventando a Educação Infantil em tempos de Covid-19: as medidas pedagógicas implementadas no município de Guarulhos/SP
Authors: Silva Luciana Longuini da , Follador Kellen Jacobsen
Published: December 2020

Com a chegada da pandemia da Covid-19, a rotina de pais, crianças e professores precisou se adequar à nova realidade. Sem a possibilidade dos encontros presenciais na sala de aula, as instituições de ensino passaram a recorrer às atividades a distância para dar seguimento ao ano letivo. Diante desse cenário de isolamento social, a Prefeitura Municipal de Guarulhos passou a oferecer atividades pedagógicas por meio do Programa Saberes em Casa, em parceria com a TV Câmara. Este artigo busca apresentar as etapas para a implementação do programa como recurso didático na Rede Municipal de Ensino entre os meses de março a junho de 2020 e as alternativas da equipe gestora de uma escola de Educação Infantil para atender as crianças durante a suspensão das aulas presenciais.
Transição para o ensino remoto de emergência no ensino superior em Portugal – um estudo exploratório
Authors: Seabra Filipa , Aires Luísa , Teixeira António
Published: December 2020

A pandemia de Covid-19 teve impactos profundos no ensino superior. Em Portugal, afetou cerca de 350000 estudantes, envolvidos num processo de transição de emergência para práticas de ensino remoto. Consideramos fundamental identificar práticas adotadas pelas instituições de ensino superior nesse contexto, assim como a forma como têm sido reajustadas ao longo do tempo, e como o processo foi percecionado, quer por professores, quer por estudantes. Para tal, foi aplicado um questionário online dirigido a professores e estudantes do ensino superior presencial entre os dias 22 de abril e 12 de maio de 2020. Os resultados apontam para a adoção de uma pluralidade de estratégias de ensino, com destaque para práticas síncronas, e revistas ao longo do processo. Apesar de aspetos sensíveis como a avaliação, o envolvimento dos estudantes, as atividades práticas ou a gestão do tempo, são reconhecidas potencialidades e limitações ao processo.
“Temos que nos reinventar”: os professores e o ensino da educação física durante a pandemia de COVID-19
Authors: Godoi Marcos , Kawashima Larissa Beraldo , Gomes Luciane De Almeida
Published: December 2020

No cenário de rápida transformação e de alta incerteza provocado pela pandemia de Covid-19, esta pesquisa identificou os desafios e as aprendizagens dos professores de Educação Física relacionadas ao ensino remoto. Para isso, foi realizado um grupo focal com cinco professores de escolas particulares. Os desafios enfrentados pelos docentes foram: sentimentos de medo e ansiedade; a adaptação para as aulas online e o uso das tecnologias no ensino; a inibição dos alunos para abrir as câmeras; encontrar atividades adequadas para o ensino remoto; a dificuldade em avaliar os alunos; a falta de apoio de algumas famílias. Em relação as aprendizagens, eles indicaram: o aprendizado do uso das TDICs; a intensificação da colaboração com colegas; a adaptação das estratégias metodológicas e o uso da criatividade. O ensino remoto emergencial gerou novos desafios para os professores de Educação Física, mas também oportunizou aprendizagens, incluindo o uso das TDICs no ensino.
Estágio de desenvolvimento do arranjo produtivo local de confecções do município Toritama (PE)
Authors: Souza Sandra Maria Araújo de , Bezerra Paloma Rayanne Silva , Gonçalves Gêuda Anazile Da Costa
Published: December 2020

Objetivo do Trabalho: Classificar o estágio de desenvolvimento do Arranjo Produtivo Local de confecções do município de Toritama – PE.Metodologia: A pesquisa é exploratória e descritiva, com abordagem qualitativa conduzida sob a forma de estudo de caso. Os dados primários foram levantados por meio de entrevista semiestruturada e de observação não participante, complementadas com o auxílio do diário de campo. As demais informações foram obtidas por meio de fontes secundárias, em especial, de pesquisas de campo realizadas anteriormente no setor de confecções. O instrumento de coleta de dado foi elaborado a partir do modelo proposto pelo Sebrae (2014), que classifica os Arranjos em: Incipientes, em Desenvolvimento e Desenvolvidos. Quanto à análise dos dados, utilizou-se da técnica de análise de conteúdo (Bardin, 2016). Originalidade: O estudo constata limitações e oportunidades que podem auxiliar no estabelecimento de estratégias de apoio ao APL confeccionista de Toritama (PE) em relação ao ciclo de vida, por meio de entrevista semiestruturada e de observação não participante, complementadas com o auxílio do diário de campo de um modelo desenvolvido especificamente para a realidade brasileira. Principais Resultados: Os resultados demonstraram que o APL está no estágio incipiente, dado que o setor possui um ambiente propício às relações de cooperação. Entretanto, as empresas atuam com foco individual, e as lideranças locais não se envolvem de forma proativa no progresso das organizações.Contribuições Teóricas: Este trabalho contribuiu com a ampliação dos debates sobre o ciclo de vida de APLs, bem como consolidou informações sobre um dos APLs de confecções mais relevantes para a economia do Estado de Pernambuco, possibilitando identificar os aspectos passíveis de melhorias e a redefinição de políticas de apoio à evolução do setor.
On the possibility of Benfordʼs Law application in accounting fraud detection
Authors: Baryła Mateusz
Published: December 2020

Purpose: The purpose of the article is to indicate that, theoretically and practically, Benford’s Law can be applied in order to detect accounting frauds.
Methodology/approach: The paper provides an overview of current regulations and experts’ opinions published in the existing literature and internet sources. Moreover, data analysis was used as a research method.
Findings: The results of assessing the conformity of the first two significant digits of distribution of foreign revenues from the sales of finished products to Benford’s Law (using the chi-square goodness of fit test) showed that in the case of a proper accounting process, one cannot reject the hypothesis that the data conform to Benford’s Law. On the other hand, the analysis of intentionally falsified foreign revenues led to the conclusion that in the case of an improper accounting process, data, in general, does not conform to Benford’s Law.
Research limitations/implications: In the study, it was assumed that the human mind generates false val-ues of accounting entries, and the number of attempts to commit fraud was limited to 10.
Originality/value: The article extends the existing knowledge of using Benfordʼs Law in detecting ac-counting fraud in the Polish literature.
Bankruptcy risk assessment models as a tool for diagnosing the financial condition of capital market companies
Authors: Kopczyński Paweł
Published: December 2020

Purpose: The main purpose of this article is to examine the usefulness of multiple discriminant analysis models in assessing the financial condition of individual enterprises, the state of the economy, and its sectors. The study assessed the financial situation of Polish listed companies at the end of the global economic crisis that started in 2007.
Methodology/approach: Seven discriminant functions were used to assess the actual changes in the finan-cial situation of listed companies during the period of 2009–2014. In order to diagnose the end of the crisis, the period in which countries emerged from the global economic crisis was taken into account. The study covered 175 Polish companies listed on the regulated market operated by the Warsaw Stock Exchange, whose standalone financial statements were used. These companies belong to 22 sectors of the economy. It was assumed that the number of companies at risk of bankruptcy should have decreased during this period.
Findings: The study showed that it is difficult to determine when the crisis ended and stopped affecting Polish listed companies. Their financial condition gradually improved during the period 2013–2014. Multiple discriminant analysis models are useful in assessing the risk of bankruptcy, but the study results show that it is safer to use several models simultaneously and to eliminate outliers.
Research limitations/implications: The discriminant models used in the study are suitable for conducting research on large populations within enterprises and can be used by state and financial institutions (including banks) and authorities in Poland to facilitate the conduct of economic statistics, forecasting economic situation, etc.
Originality/value: In Poland, many studies have been carried out on the usefulness of multiple discrimi-nant analysis models for the purposes of forecasting the bankruptcy of individual enterprises. However, there are few studies devoted to assessing the usefulness of the models in conducting research on large populations within enterprises (i.e., assessing the state of the economy and its sectors). This research helps to explore and fill this research gap.
Personality Determinants of Pro-health Behaviours Among Polish and Spanish Physical Education Students
Authors: Gacek Maria , Kosiba Grażyna , Wojtowicz Agnieszka
Published: December 2020

The aim of the study was to analyse personality determinants related to the level of pro-health-behaviours among Polish and Spanish physical education students. The study was conducted among 219 Polish and 280 Spanish students, using the NEO-FFI Personality Inventory as well as the Pro-health Behaviour Inventory by Juczyński. Statistical analyses were performed using Pearson’s correlation coeffi cient and moderation analysis. Among the prohealth behaviours, students obtained the highest results in terms of positive mental attitude, and among personality traits, for extraversion. A signifi cant increase in the general index and some domains of pro-health behaviours together with an increase of extraversion, conscientiousness, openness and agreeableness, as well as a decrease in neuroticism, were found among all the students. The moderating infl uence of home country on personality relationships with health-promoting behaviours was also confi rmed, with an indication towards an the increase in the general index of health-promoting behaviours and/or individual domains along with the intensifi cation of agreeableness and conscientiousness, and a decrease along with the increase in neuroticism and extraversion, but only among Polish students. Regardless of country of origin, the overall index of health-promoting behaviours increased along with the rise in conscientiousness (notably among Spanish students). Signifi cant relationships between personality traits and the level of pro-health behaviours have been demonstrated, as well as the moderating infl uenceof home country on the relationship between these variables among Polish and Spanish physical education students.
Deklaracje podatkowe – problemy podstawowe
Authors: Modzelewski Witold
Published: December 2020

W niniejszym artykule omówiono podstawową problematykę związaną z zagadnieniem deklaracji podatkowych. Z uwagi na brak ogólnej definicji formalnej autor poddaje analizie funkcję i specyfikę tego najważniejszego, fakultatywnego elementu normatywnej konstrukcji podatku w celu wskazania konstytutywnych cech, jakimi charakteryzuje się każda deklaracja.
Neuroprotective effect of melatonin on nickel-induced affective and cognitive disorders and oxidative damage in rats
Authors: Lamtai Mouloud , Ouakki Sihame , Zghari Oussama , Hamzaoui Abdelghafour El , Benmhammed Hajar , Azirar Sofia , Hessni Aboubaker El , Mesfioui Abdelhalem , Ouichou Ali
Published: December 2020

The present work is carried out to explore the neuroprotective potential of Melatonin(Mel), on Ni-induced neurobehavioral, biochemical and histological alterations in male and female rats. The rats were intraperitoneally administered by nickel chloride (NiCl2, 1 mg/kg) and Mel (4 mg/kg) for 60 days. A neurobehavioral assessment was performed. Biochemical determinations of oxidative stress (OS) levels, and histological analysis of hippocampal tissues were also performed. Results showed that Nickel (Ni) treatment increased anxiety-like and depression-like behavior in rats. Besides, cognitive behavior on the Morris water maze was compromised following Ni treatment. Alongside this, Ni elevated hippocampal OS markers like lipid peroxidation and nitric oxide formation with a decrease in superoxide dismutase and catalase activities. Histological observations confirmed these results. Significantly, Mel administration alleviated neurobehavioral changes in Ni-treated rats of both genders. Also, Mel attenuated Ni-induced OS and increased the activities of antioxidant enzymes. The histopathological studies in the hippocampus supported that Mel markedly reduced the Ni-induced neuronal loss. In conclusion, this study suggests that Mel has a neuroprotective effect against Ni-induced neurobehavioral alterations, which may be related to lowering OS in the hippocampus.
Poder e política nas Minas Gerais
Authors: Toledo Ana Tereza Landolfi
Published: December 2020

A presente comunicação tem por objetivo analisar como se deu as articulações entre a elite política de Minas Gerais e o governador d. Manoel de Portugal e Castro no contexto da independência do Brasil. Dentro deste imbróglio, acreditamos que a nossa personagem se colocava na articulação pela manutenção do equilíbrio entre os constitucionais, absolutistas e autonomistas em meio a uma atmosfera de negociações e disputas política, onde o governador agia em prol de um certo senso de convivência política entre os grupos locais, com o intuito de manter o controle da situação e evitar desordens sociais. Neste sentido, em face aos acontecimentos que se desenrolavam em Minas à época, d. Manoel de Portugal e Castro via-se imerso em um universo onde o novo e o antigo se mesclavam.
O poder e suas representações no interior das comunidades agregas do Vale do Mucuri, Minas Gerais (1850-1950)
Authors: Santos Márcio Achtschin
Published: December 2020

O objetivo desse artigo é analisar as representações formadas a partir  das relações de poder nas comunidades de agregados do Vale do Mucuri, região do nordeste do estado de Minas Gerais, entre o final do século XIX e meados do século XX. A questão é de que modo se estabeleceu a vida política nesses grupos e como essas relações de poder são representadas, tendo como referência o rito da Folia de Reis. A metodologia adotada foi entrevistas semiestruturadas e periódicos da região do Mucuri do período. Como resultado da pesquisa pode-se apontar que o poder no agrego estabelecia nas práticas e vivências do cotidiano, em redes de solidariedade do dia a dia. A Folia de Reis se tornou um ritual político de reforço àqueles que viviam na escassez, mobilizando e legitimando  as regras de convivência a partir da ajuda mútua.
Aspectos da história da infância nas Minas Gerais (Séculos XVIII-XIX)
Authors: Duarte Denise , Rodrigues Weslley Fernandes
Published: December 2020

O texto tem por objetivo analisar as considerações sobre o silêncio em torno da criança na documentação (oficial e cotidiana) produzida nas Minas entre os séculos XVIII e XIX e discutido pela historiografia, e traçar algumas observações acerca dessa constatação. Procuraremos, assim, apresentar reflexões sobre essa ausência de informações relativas à infância naquele contexto, mas sem a pretensão de que com essas consigamos estabelecer respostas conclusivas para tais questões, mas com a intenção de mostrar que elas foram abordadas por essas fontes e que, mesmo quando nos pormenores da documentação, sua importância era demarcada. Para auxiliar na construção de tais questionamentos e exemplificar as hipóteses levantadas utilizaremos diversos tipos de fontes, tais como registros de óbitos de inocentes, devassas, relatos de viajantes, testamentos e discutiremos também a presença pouco comum de crianças nos ex-votos pintados. Essa diversidade de objetos tratados visa apresentar, portanto, as múltiplas possibilidades de abordar a infância no passado.
100 Jahre nichtstaatliche Lehrerausbildung für Waldorfpädagogik
Authors: Boettger Christian
Published: December 2020

100 Jahre Waldorfpädagogik heißt auch 100 Jahre Waldorflehrerausbildung. Die Entwicklung der Lehrerausbildung im nicht-staatlichen Bereich vom ersten Lehrerkurs 1919 bis zu den Freien Hochschulen in Stuttgart und Alfter. Darstellung der Studiengänge und -inhalte. Das Grundgesetz Artikel 7 Abs. 4. Studienabschlüsse, fortlaufende Akkreditierung und Lehrberechtigung.
Klimaeuroparecht zwischen Green Deal und Corona
Authors: Frenz Walter
Published: December 2020

Der Klimaschutz ist zum Kernanliegen der neuen EU-Kommission geworden. Der Green Deal zeigt die Grundlinien auf, bedarf aber noch näherer Ausgestaltung, die sich in ganz verschiedene Bereiche erstreckt: von der Gebäudeeffizienz über die Energiewende (mit Bezügen zum Beihilferecht) bis zur öffentlichen Auftragsvergabe. Welche Auswirkungen hat darauf die Corona-Pandemie? Inwieweit stoppt, verlangsamt bzw. prägt sie die Umsetzung, wie sie vom 27. - 29.4.2020 beim Petersberger Klimadialog diskutiert wurde?
Der EuGH und sein Umgang mit völkerrechtlich umstrittenen Gebieten – Anmerkung zum Urteil des EuGH v. 12.11.2019, Rs. C-363/18 (Organisation juive européenne)
Authors: Hering Laura
Published: December 2020

Mit dem Urteil in der Rechtssache Organisation juive européenne musste die Große Kammer des Europäischen Gerichtshofs (EuGH) einen technischen Streit in einem hochpolitischen Kontext lösen. Sie entschied, dass auf Lebensmitteln, die aus vom Staat Israel besetzten Gebieten stammen, ihr Ursprungsgebiet angegeben werden muss. Stammen die Lebensmittel aus einer israelischen Siedlung in solchen Gebieten, muss diese Herkunft noch zusätzlich ausgewiesen werden. Andernfalls könnten die Verbraucher in die Irre geführt werden. Damit bestätigte der EuGH die Auffassung der Europäischen Kommission. Das Urteil stieß auf heftige Kritik. Den Luxemburger Richtern wurde vorgeworfen, ihre Kompetenzen überschritten und Israel diskriminiert zu haben, da es vergleichbare Kennzeichnungspflichten für andere völkerrechtlich umstrittene Territorien nicht gebe. Diese beiden Vorwürfe lassen sich nach einer rechtlichen Analyse und vergleichenden Betrachtung der Rechtsprechung nicht halten. Erkennbar ist zugleich, dass der Gerichtshof mehr als zuvor gewillt ist, das diplomatische und politische Umfeld eines Rechtsstreits in seiner Entscheidungsbegründung zu berücksichtigen.
Serving the populist agenda. How German public media broadcasters inadvertently facilitate populist movements by evoking fear and anger
Authors: Kieslich Kimon , Marcinkowski Frank
Published: December 2020

The term Media Populism is used to indicate a ‘involuntary complicity’ between news media and populist movements based on the convergence of commercial media logic and populist communication style. It grants populists and their messages a high degree of media visibility. According to the literature, this applies more to tabloid media and infotainment content in commercial television than to upmarket media outlets and news programs. In this paper, we refer to another form of involuntary collaboration between news media and populists that is not based on similar communication styles, but simply on the fact that news media have to report on topics which populists claim issue ownership for. This applies foremost to upmarket media and public service broadcasting, which are obliged by their own quality standards or legal mandate to report completely and comprehensively on all topics of public concern. We are especially interested in the emotional response of German audiences to news coverage on two topics: mass migration and the role of Islam in Germany. With the help of two experiments, we demonstrate that public service news reporting on these issues provokes strong negative emotional reactions. What is more, our results indicate that media induced fear and anger lead to increased support for anti-migration and Islam-critical demands. Hence, German public service broadcasters may not only be ‘secret accomplices’ in creating negative emotions towards Muslim migration, but also facilitate populist movements.
Put down your smartphone – unless you integrate it into the conversation! An experimental investigation of using smartphones during face to face communication
Authors: Lutz Sarah , Knop Karin
Published: December 2020

In times of permanent connectedness, smartphones are used in almost any situation, even during face to face (f2f) communications. Observational studies have shown that smartphone users can either phub their interaction partners or integrate the device into the ongoing co-present conversation. However, research in this field did not sufficiently distinguish between these types of use. Referring to the expectancy violations theory, this experiment (N = 402) investigated the effects of smartphone use more differentiated by manipulating the type of use on four levels (proactive, reactive, integrative, no use). Results indicated that interrupting a conversation proactively and reactively decreased the perceived attentiveness and politeness of the interaction partner as well as the conversational quality. In contrast, an integrative type of use did neither harm nor improve conversation outcomes and seemed to be in line with communicative expectations. Contrary to expectations, individuals’ own phubbing behavior did not influence how they evaluated the smartphone use of their interaction partner.
Regulation of Property Tax in Tanzania: Legal and Administrative Challenges
Authors: MASSAWE Hanifa T.
Published: December 2020

Property tax represents one among the most feasible, conventional, steady and progressive source of revenue. Nonetheless this form of tax has not received the attention it requires for effective contribution towards revenue generation in developing countries. The situation is however different in developed countries which have made concerted efforts to tap the potentials of property tax to achieve both fiscal and non-fiscal advantages for their communities. While taking this into account the current article conceptualizes the basic principles underlying property taxation as one among the forms of direct taxation while underscoring its value to revenue generation in general perspective. Thereafter specific analysis is made towards its practical regulation in a Tanzanian standpoint in terms of specific laws and regulatory machineries in the country. The analysis revolves around the effectiveness of the existing tax laws and regulatory machineries in ensuring optimum contribution by property tax to the country’s revenue basket. On the basis of doctrinal and empirical data it is revealed that despite its potential to contribute to revenue generation, property tax still faces a number of both legal and non- legal challenges in its administration in the country. The legal challenges include poor legal definition on the concept of property, the flat rate structure on property tax, low deterrence effect of the penal sanctions. The non-legal challenges on the other hand include low registration of property owners and properties for identification purposes, irregular valuation process, low taxpayer education on property tax affecting voluntary property tax compliance and lacking resources for property tax administration by the respective regulatory machineries. As a way to remedy the situation the paper provides a number of legal and non-legal intervention measures. The intervention measures take account of the importance of taxation for developing countries Tanzania inclusive, thus recommending solutions which reasonably combine regulatory convenience with equity and effectiveness. The recommendations are an output of theoretical data, empirical findings and specific international best practices on property taxation. The recommendations focus on legal clarification of the tax base, the method and basis for valuation and provision of required resources for enforcement of relevant laws on property taxation.
The Effect of Random Load on Life Prediction of High-Temperature Ceramic Matrix Composites
Authors: Zhang En-Zhong
Published: December 2020

High-temperature ceramic matrix composites (CMCs) are widely used in hot section components of aeroengine, and random loads have an important effect on their safety and reliability during aircraft operation. The current fatigue life prediction model of CMC is divided into macrophenomenon model and microdamage mechanism model. In this chapter, the fatigue life of fiber-reinforced ceramic matrix composites is investigated. The fatigue life of the fiber-reinforced ceramic matrix composites is predicted by micromechanical methods. The effect of random loading on fatigue life is analyzed and compared with constant peak stress fatigue life. The influence of composite constitutive properties on fatigue fracture is also discussed.
Risk Assessment of Civil Aircraft during Operation
Authors: Li Longbiao
Published: December 2020

In this chapter, the risk assessment methods for aircraft system, structure, and aeroengine are investigated. For the aircraft system risk assessment, the probability level is divided into probable, improbable, and extremely improbable, and the hazard level of the failure condition is divided into minor, major, and catastrophic. Using Weibull analysis and Bayesian method to analyze the aircraft operation data, the risk level of aircraft system can be determined by combing methods provided in AC 25.1309-1A. For the aircraft structure risk assessment, the probability fracture mechanics approach can be used to determine the structure failure risk based on the data of material properties, environment, inspection, and so on. For the aeroengine risk assessment, the methods for classification of failure risk level, determination of hazard ratio, and calculation of the risk factor and risk per flight are given. The risk assessment process for aeroengine multi-failure modes based on the Monte Carlo simulation is presented to predict the occurrence of the failure and assess the failure risk.
Risk and Economic Analysis Methods of Commercial Aero Engines
Authors: Aitugan Sherkhan , Li Longbiao
Published: December 2020

This chapter outlines the results of risk analysis and economic analysis of commercial aero engines during aircraft operation. Risk analysis is the procedure for identifying risk factors and assessing their significance, in essence, analysis of the likelihood that certain undesirable events may occur and as such adversely affect operation. Risk analysis includes risk assessment and methods to reduce risks or reduce adverse effects associated with it. Furthermore, economical analysis is a scientific way of understanding the essence of economic phenomena and processes, which in turn are based on dividing them into their constituent parts. In doing so, the variety of relationships and dependencies aimed at improving the associated work through the development and implementation of optimal solutions is studied. The purpose of the economic analysis is to give management of the actual state, and for persons who are not directly working with it, but are interested in its financial condition, the information necessary for an impartial judgment.
The Two Sides of Dietary Antioxidants in Cancer Therapy
Authors: Adewumi Akanji Musbau , Demilade Fatinukun Heritage , Emmanuel Rotimi Damilare , Lawrence Afolabi Boluwatife , Stephen Adeyemi Oluyomi
Published: December 2020

Cancer is a major cause of mortality around the world, representing about 13% of deaths on the planet. Among the available cancer treatments, chemotherapy is most frequently utilized compared to other treatments such as surgery and radiotherapy. Many dietary antioxidants have proven to effectively prevent oxidative stress, which has been noted in many disease pathogeneses, including cancer. However, during chemotherapy or radiotherapy treatment of cancer patients, antioxidants are used as an adjuvant treatment. The use of a proof-based technique is advised in determining the supplements most suited to cancer patients. Though there are numerous opinions about the dangers and advantages of antioxidants, it is reasonable to conclude that side effects caused by antioxidants, for now, remain unclear for patients during cancer treatment, aside from smokers during radiotherapy. In this report, details of the effectiveness of antioxidants on cancer treatment aiding in the reduction of cancer therapy side effects are discussed.
Prognosis of patients with COVID-19 admitted to a tertiary center in Chile: A cohort study
Authors: Araujo Miguel , Ossandón Paola , Abarca Ana María , Menjiba Ana María , Muñoz Ana María
Published: December 2020

Introduction Since the beginning of the COVID-19 pandemic, extensive research has been done on the prognosis of patients with SARS-CoV-2 associated with age, biodemographic conditions, comorbidities, social factors, clinical parameters, inflammatory blood markers, coagulation, biochemical and blood gas parameters, among others. Few studies have addressed this problem in Latin America, so it is of interest to know how the disease plays out in this region. Objective The purpose of our study is to evaluate the course of COVID-19 in patients admitted to a tertiary center in Chile and to assess factors measured close to hospital admission that may be associated with death and the need for invasive mechanical ventilation. Methods We did a retrospective cohort study at Indisa Clinic in Santiago, Chile. We included all patients aged 15 years and older hospitalized between March 11 and July 25, 2020. Hospital mortality and severity of the cases were analyzed, and logistic regression models were applied to identify predictors of outcome variables. Results The sample included 785 subjects. The mean age was 59 years, 59% were men, and 61.3% had comorbidities. Forty five per cent required intensive care, and 24% invasive mechanical ventilation. The overall hospital fatality rate was 18.7%. In intensive care patients, the case fatality was 32.1%, and in those who received invasive mechanical ventilation, it was 59.4%. Independent risk factors for death included age (odds ratio 1.09; 95% confidence interval: 1.07 to 1.12), diabetes (1.68; 1.06 to 2.67), chronic lung disease (2.80; 1.48 to 5.28), increased C-reactive protein, creatinine, and ferritin. No association with sex, public health insurance, history of heart disease, oxygen saturation upon admission, or D-dimer was found. Similar factors were predictors of invasive mechanical ventilation. Discussion The prognosis and predictive factors in this cohort of patients hospitalized in Chile for COVID-19 were comparable to those reported in similar studies from higher-income countries. Male sex was not associated with a poor prognosis in this group of patients.
The work of Primary school 'Branko Radicevic' in Kosovska Mitrovica and success evaluation at the end of 2016/2017 and 2017/2018 school year
Authors: Rajčević Petar
Published: December 2020

Primary school in Kosovska Mitrovica under its current name 'Branko Radicevic' was founded in 1920. It has had successful development in every aspect of education ever since. The school built of solid material with four classrooms and one staffroom was erected by Kosovska Mitrovica citizen's donations. After its completion it turned out to be one of most beautiful buildings in this town. After the World War II it was named as 'Prva osnovna skola' (The First Serbian primary school). Due to the number rise of children and the fact the existing facilities were insufficient a new school was built in Lisic Polje. The school was renamed in 1956 as 'Branko Radicevic' after the famous poet from the Serbian Romantic period. The school is nearing anniversary of a century long successful work. During that time a numerous number of generations of pupils went to the school.
The importance of renewable energy sources for sustainable development
Authors: Petrović-Ranđelović Marija , Kocić Nataša , Stojanović-Ranđelović Branka
Published: December 2020

The accelerated development of the global economy is leading to increasing consumption of natural resources. The exploitation of resources is moving at an accelerated pace, while their availability is decreasing. The biggest problem is the depletion of non-renewable and limited resources that are the carriers of the raw material base of energy and manufacturing industry, which calls into question the preservation of energy stability and efficiency at the global level. Uncontrolled industrial growth, accompanied by increasingly intensive depletion of non-renewable natural resources, especially fossil fuels, has caused enormous pollution of the environment and the entire planet. In the conditions of depletion of natural resources, negative climate changes accompanied by global warming and a serious threat to the survival of life, it is necessary to adopt and implement the concept of sustainable development. The concept of sustainable development explicitly aims to achieve optimal economic results, while preserving and improving the environment and the social component of development. Natural resources play an extremely important role in achieving economic growth and development. The aim of this paper is to point out the importance of renewable energy sources for achieving sustainable development. It is necessary to investigate the importance of renewable and non-renewable natural resources, as well as the factors that affect their exploitation, with the aim of successfully implementing the concept of sustainable development.
The concept and objectives of environmental management
Authors: Živković Snežana , Veljković Milan
Published: December 2020

Environment protection has become a very common subject of discussion all over the world due to the destructive influence of man's economic activities on the environment in the name of sustainable global economy. The purpose of this paper is to address the issue of environmental management as a part of the overall management system. The aim of the paper is to emphasize the significance of environmental management and its concern with the management for environment encompassing a business. Sound environmental management can only be equated with good management and should have sufficient measures for minimizing the environmental damage.
Strategy of water-flooding enhancement for low-permeable polymictic reservoirs
Authors: Palyanitsina Aleksandra , Tananykhin Dmitry , Masoud Riazi
Published: December 2020

This article pays attention to the issues of increasing the efficiency of the development of oil fields with low-permeable polymictic reservoirs. It is possible to increase the efficiency of this process by improving the technology of their artificial water-flooding. This goal is being realized by identifying the features of the development of low-permeable polymictic reservoirs of fields in Western Siberia and creating a strategy to improve the technology of artificial waterflooding, taking into account the impact on the surface molecular properties of the reservoir system by the stages of their development. The developed strategy was substantiated in stages using hydrodynamic modeling. Also, an assessment was made of the effectiveness of the implementation of low-salinity waterflooding at the late stage of development of low-permeability polymictic reservoirs, the optimal time for changing the waterflooding agent from formation water to fresh water was determined.
Strategic studies in the service of hegemony: A view of strategic culture from the perspective of the second generation
Authors: Ajzenhamer Vladimir
Published: December 2020

This paper is dedicated to the second generation of so-called cultural strategists, whose contribution to the development of strategic culture and the study of strategy as a form of discourse is unjustly neglected, especially when it comes to the most prominent representative of the entire generation, Bradley Klein. According to the author of this paper, Klein's NEO-Gramscian approach to strategic studies remains the underused scientific potential, which could, in the future, contribute to a better understanding of international relations and international security. Therefore, the author aims to acquaint the reader with Klein's critical interpretation of strategic culture, seen as a discursive instrument of the hegemony of political and military elites, and to point out the importance of Klein's analysis of strategic discourse, which is intentionally marginalized by other theorists of this subdiscipline.
Contemporary strategic culture and neutrality
Authors: Stojanović Stanislav
Published: December 2020

The practice of neutral states represents an important expression of modern strategic culture, as a specific attitude towards military force and the use of military force, especially when it comes to Europe. Although the international politics seemed to be directed towards the circumstances in which such a collective understanding of reality was difficult to maintain, neutrality, with numerous challenges, continuously proves to be a very dynamic and adaptable concept. The emergence of internationalism after the First World War, especially the intensified integration trends after the end of the Cold War, strengthened the process of creating the basis for a new anti-war security vision of Europe. At the core of such efforts was the promotion of cooperation and dialogue and the suppression of the importance of military force in relations between European countries, which commenced the process of establishing the strategic culture of the European Union as an authentic post-national model. The new strategic culture with its specific view on the nature of relations between European countries, which is completely different from the traditionally understood contents of such concept, suppressed the importance of national security perceptions, as well as the effectiveness of military force in international politics, promoting the idea of security indivisibility. Undoubtedly, the strong integration momentum and the transnational type of threats have influenced the redefinition of neutrality practice, so the approach of neutral states to European and Euro-Atlantic integration was considered a natural course of events. Thus, today, neutrality has been radically modified in some aspects, and it is no longer significantly determined by, among the other things, isolation, but by emphasized international engagement. The abandonment or significant redefinition of the main postulates of neutrality has prompted serious challenges to the importance of neutrality, the authenticity and scope of the strategic culture of neutral states. That is why the value contents of neutrality have begun to be considered debatable, so that for some the concept is outdated, while others believe that it can still contribute to strengthening peace and stability in the world. However, although radically modified, neutrality has not disappeared, and it still represents a concept that is an important segment of international politics. The revival of realpolitik in international relations in recent years, as well as the challenges of the multipolar concept of international relations, represent important incentives for the legitimacy of the choice of neutrality and the affirmation of a strategic culture that favors the value postulates of neutrality.
Analysis of insurance in agriculture of the Republic of Serbia in the period 2009-2018.
Authors: Petrović Mladen , Tomić Vedran , Radišić Robert , Ljiljanić Nikola
Published: December 2020

The subject of this paper is the analysis of agricultural insurance in the Republic of Serbia, which includes the types of agricultural insurance that exist in Serbian insurance market, the subjects that could be insured, as well as the insurance companies that are active in agricultural insurance at national level. The main goal of paper is to define the basic terms in agricultural insurance and to show the products and procedures in agricultural insurance offered by the insurance companies. Additional goal is to show the level of development and coverage of agricultural insurance in Serbia, as well as to point out the importance of insurance for agricultural development. In paper are used descriptive and deduction method, as well as desk research and descriptive statistics methods. Based on the conducted research, it is concluded that the current state in agricultural insurance in Serbia is quite low, while the main factors influencing this situation are underdeveloped agriculture and the fact that agricultural insurance is not mandatory. Insurance is significantly more represented in the crop than in livestock production.
Trends in development of Serbian agriculture after the economic crisis in 2008.
Authors: Aničić Jugoslav , Paraušić Vesna
Published: December 2020

In this paper, the authors analyse the trend of agricultural production, at the agricultural holdings and enterprises active within the mentioned sector, in the period after the economic crisis in 2008., based on the submitted financial reports. The fact is that Serbia has favourable natural resources, but the achieved results are significantly below the average of EU member states. This indicates low labour productivity, as well as low competitiveness of legal entities involved in the agricultural sector. The analysis points out to the basic factors that influenced this state of the sector, but also to the possibilities of its dynamic and sustainable development. There is believe that participants in the production and trade of agricultural products can make a significantly greater contribution to overall economic growth, employment, exports and the creation of new value, but they need an adequate business environment and support of agricultural policy.
Sistema Integrado de Gestão (SIG): Análise da percepção dos docentes e gestores dos cursos do Centro de Ciências Sociais Aplicadas da Universidade Federal de Sergipe
Authors: Lima Rafael Ribeiro de , Luft Maria Conceição Melo Silva , Santos Carla Larisse Ferreira dos
Published: December 2020

Este estudo teve como objetivo analisar o Sistema Integrado de Gestão (SIG) da Universidade Federal de Sergipe (UFS) no tocante a execução de tarefas e tomada de decisões, na percepção dos docentes e gestores dos cursos do Centro de Ciências Sociais Aplicadas (CCSA). Para tanto, a pesquisa foi fundamentada utilizando um embasamento teórico sobre sistemas de informações e Enterprise Resource Planning, mediante os quais buscou-se demonstrar que as organizações vêm identificando a necessidade de incorporar modernos sistemas de informações, dando ênfase a um tipo de abordagem mais sistêmica. Desse modo, a pesquisa foi caracterizada como descritiva com emprego do método quantitativo e qualitativo, junto aos entrevistados, docentes e gestores do CCSA, por meio da estratégia de estudo de caso. A partir dos resultados obtidos, foram evidenciados a caracterização do uso dos principais módulos do sistema, as principais facilidades de uso, as características das informações geradas pelo sistema e os problemas e possíveis soluções, que na percepção dos docentes e dos gestores, interferem diretamente na utilização e nos resultados obtidos através do sistema. Dessa forma, concluiu-se que o SIG atende a grande parte das demandas, porém, na percepção dos seus usuários, ainda necessita de melhorias em quesitos como capacitação, manutenção e flexibilidade.
Where the Meghalayan meets the Anthropocene: Stratigraphic signals of human-environmental interactions on the periphery of Indian civilisation
Authors: Prokop Paweł
Published: December 2020

The aims of this study were to review human-environment interactions during the Meghalayan and to search for the stratigraphic boundary of a new epoch, informally termed the Anthropocene, as well as to determine whether the stratigraphic signals of human activity on the Meghalaya Plateau in Northeast India can be correlated globally. This plateau is the base of the Meghalayan Age that was determined from a speleothem in a cave located on it. Review indicates that study region developed on the periphery of ancient Indian civilisation, with stratigraphic signals of human activity being apparent in only the last few thousand years; that is, substantially later than the neighbouring ancient Indian civilisation. The stratigraphic signals are heterogeneous and diachronous, not only as a result of various human activities, but also in the effect of the diverse sensitivities of the environment to anthropogenic disturbances. A discrete and visible cultural layer that relates to the development of settlements and the production of new materials is still being formed and reworked. The only synchronous stratigraphic signal with a global range seems to be associated with the artificial radionuclide fallout from nuclear weapons testing, which covers a topsoil layer of up to tens of centimetres thick
Investigation of Ferromagnetism and Growth Correlation of Transition Metal Doped ZnO
Authors: SARF Fatma , AŞIKUZUN Elif , YAKAR Emin
Published: December 2020

In this study, a series of 3d transition metal (TM) (Co, Ni and Fe) doped ZnO particles synthesized by simple co-precipitation method. Structural, morphological and magnetic properties were investigated to determine correlation between growth process and ferromagnetism of metal doped ZnO samples. All samples had ZnO hexzagonal würtzite structure and slightly shift of ZnO indexed peaks was observed by TM incorporation in ZnO. Although ZnO samples had granular forms, agglomerative forms had emerged in TM:ZnO samples due to the fast growth process. The pure ZnO sample transformed paramagnetic to ferromagnetic by TM incorporation due to carrier mediated exchange interaction between TM ions. The results demonstated that doping with Fe3+ ions in ZnO structure had enhanced ferromagnetism although fast growth and high particle agglomeration.