bluuebunny/crossref_metadata_2025_split huggingface dataset:
O Ensino Médio e o ensino da literatura – antes da BNCC
Authors: Figueira Lauro Roberto do Carmo , Silva Cássia Beatriz Feleol , Aguiar Carlos Herique Xavier de 
Published: April 2020

A pesquisa partiu das leituras sobre os fundamentos legais para o Ensino Médio (DCNEM, PCNEMs, OCNEM), com alguns enfoques específicos acerca da área de Linguagens, tangente ao conteúdo Literatura, antes da consolidação da Base Nacional Comum Curricular (BNCC). Os documentos legais consultados orientam a construção de currículos e descrevem a estrutura do Ensino Médio. Neste sentido, investigaram-se as abordagens, dentro dessas diretivas, sobre os norteamentos dirigidos ao ensino da obra literária no contexto do componente curricular Língua Portuguesa. A justificativa para este recorte de estudo advém da prática docente do autor deste texto, que experimenta, no seu labor, na faculdade de Letras, disparidades entre a matriz curricular do curso de Licenciatura em Letras, Língua Portuguesa, com o currículo sobre o ensino da Literatura, no Ensino Médio. Outrossim, justifica-se em razão de professores da Língua Portuguesa/Literatura, do Ensino Médio, com muitos anos de trabalho, desconhecerem as matrizes oficiais que fundamentam a sua profissão. Palavras-chave: Escuela secundaria. Docencia. Literatura.
Alfabetização de crianças: concepções e perspectivas
Authors: Lucon Juliana Stephan , Zibetti Marli Lúcia Tonatto 
Published: April 2020

Neste artigo, expõem-se os resultados de um levantamento bibliográfico, cujo objetivo foi compreender como o campo da alfabetização de crianças tem sido estudado nos últimos anos no Brasil. Nesse levantamento, procurou-se identificar: as concepções teóricas que sustentam os trabalhos publicados, os temas que foram objeto de análise, bem como as lacunas que têm exigido maior atenção dos pesquisadores. No site da Associação Nacional de Pesquisa e Pós-Graduação em Educação (ANPED) e no repositório da Scientific Electronic Library Online (Scielo) estão as bases de dados consultadas para esse levantamento. Delimitando-se ao período de 2011 a 2017, foram lidos integralmente 21 artigos. Os resultados indicam que a maior parte da produção é oriunda das regiões Sudeste e Nordeste, de pesquisas desenvolvidas em programas de pós-graduação. Quanto aos referenciais teóricos, apesar da grande diversidade, constatou-se o predomínio de enfoques da psicogênese da língua escrita e do letramento. Constatou-se também que a perspectiva teórica da psicologia histórico-cultural começa a fundamentar algumas produções. Quanto às temáticas, os dados indicaram grande heterogeneidade: foram mais abordadas, em ordem, a aprendizagem da leitura e da escrita e as práticas pedagógicas utilizadas para alfabetizar. Os resultados evidenciam que os temas que precisam de maior atenção são: a alfabetização de crianças com deficiência, o uso da tecnologia, a alfabetização em contextos de diversidade cultural, como as comunidades indígenas e quilombolas, e a avaliação dos processos de ensino e aprendizagem da língua escrita. Palavras-chave: Aprendizagem. Leitura. Escrita.
A COMPARATIVE STUDY BETWEEN UNIVARIATE AND BIVARIATE TIME SERIES MODELS FOR CRUDE PALM OIL INDUSTRY IN PENINSULAR MALAYSIA
Authors: Mah Pauline Jin Wee , Nanyan Nur Nadhirah 
Published: April 2020

The main purpose of this study is to compare the performances of univariate and bivariate models on four time series variables of the crude palm oil industry in Peninsular Malaysia. The monthly data for the four variables, which are the crude palm oil production, price, import and export, were obtained from Malaysian Palm Oil Board (MPOB) and Malaysian Palm Oil Council (MPOC). In the first part of this study, univariate time series models, namely, the autoregressive integrated moving average (ARIMA), fractionally integrated autoregressive moving average (ARFIMA) and autoregressive autoregressive (ARAR) algorithm were used for modelling and forecasting purposes. Subsequently, the dependence between any two of the four variables were checked using the residuals’ sample cross correlation functions before modelling the bivariate time series. In order to model the bivariate time series and make prediction, the transfer function models were used. The forecast accuracy criteria used to evaluate the performances of the models were the mean absolute error (MAE), root mean square error (RMSE) and mean absolute percentage error (MAPE). The results of the univariate time series showed that the best model for predicting the production was ARIMA while the ARAR algorithm were the best forecast models for predicting both the import and export of crude palm oil. However, ARIMA appeared to be the best forecast model for price based on the MAE and MAPE values while ARFIMA emerged the best model based on the RMSE value. When considering bivariate time series models, the production was dependent on import while the export was dependent on either price or import. The results showed that the bivariate models had better performance compared to the univariate models for production and export of crude palm oil based on the forecast accuracy criteria used.
ON FRIENDSHIP AND LOVE. PHILOSOPHY FOR/WITH CHILDREN AT THE “OCTAVIAN GOGA” CLUJ COUNTY LIBRARY
Authors: KEREKES Erzsébet 
Published: April 2020

This paper presents and analyses the activities in Hungarian language that took place in the spring of 2019, examining the topic of friendship and love, following Matthew Lipman’s methodology. The location of our activities was one of the branches of the Octavian Goga Cluj County Library, with an average number of 8 participants (children aged between 6 and 15 years). These discussions helped children to understand the complexity of friendship as a moral value and phenomenon, the discussion and resolution of potential conflicts, the importance of explaining their views accurately, and their contribution to making things better.
O conhecimento de jovens frente as IST no município de Nhamundá – AM
Authors: Duque Cleane Souza , Cardoso Luana , Lima Luiz Rodrigues , Mazalo João Viriato , Mori Bruno 
Published: April 2020

Os adolescentes estão iniciando sua vida sexual cada vez mais cedo. A adolescência é uma fase caracterizada pela faixa etária de 12 a 18 anos, repleta de descobertas e vulnerabilidades, onde ocorre à expressão própria de escolha individual e questionamentos perante a sociedade, relacionado ao conhecimento do próprio corpo, relações sexuais, uso de drogas e consequentemente exposição às infecções sexualmente transmissíveis (IST). Neste contexto, idealizou-se este estudo com o objetivo de avaliar o grau de conhecimento dos jovens frente às Infecções Sexualmente Transmissíveis (IST) no município de Nhamundá/Am. Trata-se de um estudo descritivo, observacional de caráter quantitativo com amostra de 40 (quarenta) adolescentes regularmente matriculados no 8º e 9º ano do ensino fundamental da Escola Estadual Professor Gilberto Mestrinho, no período entre agosto a setembro de 2015. Os dados foram coletados com auxílio de questionário sobre o conhecimento dos jovens em relação à sexualidade, e utilizou-se a estatística descritiva para análise dos dados. Nos resultados constatou-se que dos 40 adolescentes participantes do estudo, quando questionados se conheciam os métodos de prevenção das IST, a opção respondida por 70% (28) dos alunos foi de: não possuir conhecimentos e apenas 30% (12) alunos responderam: possuir conhecimentos sobre a prevenção e que, entretanto, a falta do diálogo com os pais sobre a vida sexual, foi apontado como o principal motivo de desconhecimento sobre às IST p<0.09172*. Assim, conclui-se que existe ausência de conhecimentos básicos e indispensáveis para prevenir as IST na maioria dos alunos que participaram da entrevista, resultante da falta de diálogo familiar, educação sexual ou até mesmo timidez do próprio adolescente em abordar o assunto.
Palavras-chaves: Adolescente. Doenças sexualmente transmissíveis. Saúde do adolescente.
Quantifying the peak yields of four cellulosic bioenergy crops in the East-Central Poland.
Authors: MOLAS ROMAN , BORKOWSKA HALINA , SKIBA DOMINIKA , GŁOWACKA ALEKSANDRA 
Published: April 2020

Through the six successive years (2010–2015), from the 5th to the 10th year of cultivation, research was carried out on yielding and species characteristics of 4 perennial vegetatively propagated energy crops. These were: 2 species of Miscanthus, Sida hermaphrodita, and 2 Salix viminalis clones (1047 and 1054), cultivated side-by-side. The height and shoot number, yield and biomass moisture were evaluated. The highest shoot density of Miscanthus sacchariflorus was found, while the largest yield of Miscanthus × giganteus. Salix viminalis and Miscanthus × giganteus biomass was characterized by the highest content of accumulated moisture (on average 50%). The Sida hermaphrodita plants were appeared as the tallest ones on the six-year average. It is worth mentioning, we have concluded that yield of Miscanthus, and Sida is high and stable in the long-term study. However, in the average yields of these 2 species (Miscanthus × giganteus and Sida hermaphrodita) no statistically significant differences were found. Results can strengthen the improved species diversity in perennial energy crops cultivation.
Identification of Triticum durum genotypes showing increased tolerance to oxidative stress
Authors: LEŚNIOWSKA-NOWAK JUSTYNA , SOZONIUK MAGDALENA , KAWĘCKA MAGDALENA , MAGA KORNELIA , MROZEK MAŁGORZATA 
Published: April 2020

Oxidative stress can significantly impair the plants growth and development. It can be triggered by various biotic and abiotic factors. The study analyzed durum wheat genotypes aiming at identifying the forms characterized by increased tolerance to stress induced by methyl viologen (paraquat). The presence of paraquat in the medium caused the majority of analyzed forms to reduce the weight and length of the shoot part of seedling. In addition, inhibition of the root system development compared to control forms was observed. In some of the forms studied, oxidative stress caused chlorosis. Six different types of responses to oxidative stress were found. Most genotypes (58.8%) showed a reduction in seedling weight and length, irrespective of the paraquat concentration used. Nine genotypes resistant to stressor (CYP, MEX × 2, ETH, FRA, ITA, POL, SUN, TUN) were identified, which constituted 6.1% of the examined forms.
Higher preoperative left atrial volume index predicts lack of mitral regurgitation improvement after transcatheter aortic valve replacement
Authors: Dominici Carmelo , Salsano Antonio , Nenna Antonio , Spadaccio Cristiano , Barbato Raffaele , Mariscalco Giovanni , Santini Francesco , Bashir Mohamad , El-Dean Zein , Chello Massimo 
Published: April 2020

Background
Moderate-to-severe mitral regurgitation is present in 20–35% of patients undergoing transcatheter aortic valve replacement (TAVR) and the current literature lacks simple echocardiographic parameters, which can predict post-TAVR changes in mitral regurgitation. The aim of this study is to investigate the echocardiographic predictors of improvement or worsening of mitral regurgitation in patients undergoing TAVR with moderate-to-severe mitral regurgitation.

Methods
This retrospective study included 113 patients who underwent TAVR with preoperative mitral regurgitation grade at least 2. Patients with concomitant coronary artery disease requiring treatment were excluded. Mitral regurgitation was related to the annular dilatation or tethering mechanism in all patients. Preoperative and postoperative echocardiographies were compared in terms of mitral regurgitation and other commonly measured parameters.

Results
After TAVR, a reduction in mitral regurgitation was observed in 62.8% of cases. On the basis of the difference between postoperative and preoperative echocardiograms, 71 patients had improved mitral regurgitation, whereas 42 patients had stable or worsened mitral regurgitation. After analyzing preoperative echocardiographic parameters with regard to this group difference, left atrial volume index (LAVI) was the only variable that was different between groups (33.4 ± 4.8 ml/m2 in improved mitral regurgitation vs. 39.8 ± 3.0 ml/m2 in not improved mitral regurgitation, P < 0.001). In a multivariable logistic regression model, a LAVI increase was associated with lack of an acute reduction in mitral regurgitation (odds ratio = 1.41, P < 0.001) after adjustment for age and preoperative serum creatinine.

Conclusion
Higher preoperative LAVI is a determinant predictor of lack of an acute reduction in mitral regurgitation after TAVR, and LAVI could be used as a stratifying tool to tailor the treatment strategy and the timing of the procedures. However, validation of these results and long-term outcomes are warranted to support those conclusions.
Potential forest fire risk evaluation in Poland
Authors: Szczygieł Ryszard , Kwiatkowski Mirosław , Kołakowski Bartłomiej , Piwnicki Józef 
Published: April 2020

Abstract
The term forest fire risk means the existence of such conditions that would make possible the occurrence of a fire in the forest environment. The base for the effectiveness of a forest fire protection system is the evaluation of the forest fire risk followed by adequate organization of the system. This article presents methods for determination of the forest susceptibility to fire known as potential forest fire risk. The below presented methods were developed by Forest Research Institute as the results of the projects commissioned by the General Directorate of State Forests. The forest fire risk category and stand flammability classes are the methods included here. The forest fire risk category was elaborated already in 1975 for the first time. Until today, after the last modification in 2008, it is the fundamental document for the polish forest fire protection system. The purpose of this modification was to increase the determination accuracy of the fire risk category of all polish forest, regardless of its ownership type and at the different administrative level. The categorization method, however, doesn’t reflect the fire risk in micro scale. The attempt to solve that problem was made in 2018 while developing the methodology of stand flammability classes. It was assumed that ground cover fuel models will be developed for the most flammable forest habitat types including ground cover types, dominant species, age class and geographical localisation.
Application of green-extraction technique to evaluate of antioxidative capacity of wild population of fireweed (Epilobium angustifolium)
Authors: Nowak Anna , Klimowicz Adam , Duchnik Wiktoria , Kucharski Łukasz , Florkowska Katarzyna , Muzykiewicz Anna , Wira Daria , Zielonkabrzezicka Joanna , Siedłowska Anita , Nadarzewska Kinga 
Published: April 2020

Summary

Introduction: Fireweed (Epilobium angustifolium (L.) Holub) is a common weed growing on meadows, roadside and agricultural wasteland, creating vast, rapidly spreading fields.

Objective: The aim of the study was to evaluate the antioxidant activity of extracts from fresh fireweed, harvested at three ripening stages.

Methods: Analysis of antioxidative activity was carried out by DPPH, ABTS and FRAP methods. Total polyphenol and total flavonoid content were also determined. Plant material was extracted using ultra-sound-assisted green extraction technique with methanol, ethanol and isopropanol at different concentrations and water.

Results: The highest antioxidant activity evaluated by DPPH, ABTS and FRAP was found for the extracts prepared in 70% ethanol. The highest content of total polyphenols were observed in extracts in 70% ethanol, whereas the highest content of flavonoids extracts in undiluted methanol.

Conclusion:
Epilobium angustifolium harvested at fruit ripening stage seems to be a valuable source of antioxidants.
Medicinal plants for management and alternative therapy of common ailments in Dutsin-Ma (Katsina State) in Nigeria
Authors: Sadiq Idris Zubairu , Abubakar Fatima Sadiq , Ibrahim Bashiru , Usman Mohammed Aliyu , Kudan Zeenat Bello 
Published: April 2020

Summary

Introduction: Nowadays, many synthetic drugs comes with various degrees of side effects, accumulative toxicity and development of resistance by microorganisms. Medicinal plants used worldwide can be developed into modern drugs with little or no side effects and greater efficacy.

Objective: The aim of this paper was to document the alternative therapy used in Dutsin-Ma local community in Katsina state, Nigeria.

Methods: Ethnobotanical survey was carried out among 40 traditional herbalists. Out of 106 plants found, screening was conducted to include only plants that are prescribed simultaneously by the entire herbalists.

Results: We have found 32 species of medicinal plants from 20 families that are used for management and alternative therapy against common ailments such as malaria, diabetes, sickle cell anaemia, hypertension, ulcer, paralysis, typhoid fever and immune deficiency.

Conclusion: Traditional medicinal plants provide the alternative therapy for treatment and management of diseases to significant number of people. Herbal practitioners are still relevant to African healthcare system.
Coreopsis tinctoria Nutt. as a source of many colours
Authors: Schmidt-Przewoźna Katarzyna , Villavicencio Anna Morales , Kicińska-Jakubowska Anna , Zajączek Karolina , Brandys Anna 
Published: April 2020

Summary

Introduction:
Coreopsis tinctoria Nutt. is an annual plant with small flowers in yellow and claret. In dyeing process, a whole range of colours can be obtained using various methods.

Objective: The aim of the study was to present a wide range of colors of the little-known plant C. tinctoria. and its health promoting properties.

Methods: In our research, we selected 3 types of wool: Polish Merino, Żelaźnieńska, and Polish Lowland Sheep and compared the colours obtained on these wools using 6 dyeing methods.

Results: The results indicate that the basic colour of wool influences the intensity of colour after dyeing as well as the type of the used mordant, which determines the obtained colour. A whole range of very intense colours was obtained from very small flowers of C. tinctoria.

Conclusions: Flowers are a very good and efficient raw material that gives intense colors on wool. An additional advantage is the plant's health-promoting properties. The plant is still little explored in this respect.
Variability of composition of essential oil and coumarin compounds of Angelica archangelica L.
Authors: Forycka Anna , Buchwald Waldemar 
Published: April 2020

Summary
The medicinal and culinary properties of Angelica archangelica L. have been known and valued since the Middle Ages. Ingredients of essential oil and coumarins found in this plant are to a large degree responsible for its pharmacological activity. This study is a review of the literature of the most important biologically active compounds present in herbal raw materials: root (rhizome with roots) and angelica fruits. Research shows that the content of individual compounds of the essential oil and coumarin fraction is variable, which may point to a large intraspecific variation. Therefore, these compounds may be good markers for identifying taxa or chemotypes in chemotaxonomic research valuable for the herbal medicine and pharmaceutical industry.
Covid-19 Pandemic; Recession, Virtual Revolution Leading to De-globalization?
Authors: Sułkowski Łukasz 
Published: April 2020

Abstract

Objective: The article is an attempt to make a diagnosis about the impact of the Covid-19 pandemic on global trends, including organizational processes in enterprises, and challenges for organization leaders in many areas. Issues such as recession phase in which the economy will find itself, de-globalization and the increase in virtualization of both the economy and entire societies are discussed in the article.

Methodology: The research method is a review of the literature, not very extensive, on the subject. There is a lack of research on social and cultural consequences of Covid-19 pandemics, and at the same time we are experiencing a flood of media information. The author is aware that impact assessment is subject to uncertainty and that it must be multidimensional.

Findings: The review of the literature, as well as reports from financial institutions, show that the economies of individual countries are entering a phase of stagnation and recession. This will probably lead to a global recession. The text indicates the sectors and types of enterprises that will be most affected by the changes. The article proves that governments’ attitude to health care functions may change, as well as the role of states and international financial institutions. Virtualization of communication seems to be an important change. It is difficult to answer the question whether a pandemic will affect globalization or de-globalization, government decisions at national level are significant, but they draw from international experience.

Value Added: The article becomes an important voice on the impact of a pandemic on the functioning of the economy and globalization.

Recommendations: A question was posed demanding further analyses: whether strengthening the central government would mean de-globalization tendencies. It seems that the virtualization of social and economic life will continue after the pandemic expires, which needs to be confirmed. The impact of the pandemic on the world should be the subject of many research studies in the future.
Understanding Uncertainty and Risk in Management
Authors: Jedynak Piotr , Bąk Sylwia 
Published: April 2020

Abstract

Objective: The purpose of this text is to identify approaches to defining and subsequently reviewing the definitions of uncertainty and risk as interdisciplinary terms which are of key importance in modern management.

Methodology: The work is theoretical. The main method used in the research process was the analysis of scientific literature. A one-dimensional logical classification method was also used, in order to categorize approaches to defining uncertainty and risk, satisfying the exhaustive and mutually exclusive criteria in the selection of categories of approaches.

Findings: The main results of the work are: 1) identification of approaches to defining uncertainty and risk, 2) interdisciplinary review of definitions of uncertainty and risk indicating the criteria to distinguish between the two, and 3) determination of the meaning of the terms uncertainty and risk in modern management.

Value Added: Considering the approaches to defining uncertainty and risk taken from many fields and disciplines of science, this text is a compendium of theoretical knowledge for the proper understanding and meaning of these concepts in management.

Recommendations: The research findings can have implications for both management theory as well as the practice of organization management.
Alveolar proteinosis – disease with unpredictable evolution (series of clinical cases)
Authors: Macri Anca , Stoica Radu 
Published: April 2020

Abstract
Pulmonary alveolar proteinosis (PAP) is a rare disease, certainly underdiagnosed, characterised by the intra-alveolar accumulation of a milky fluid rich in phospholipids and lipoproteins derived from alveolar surfactant, positive in periodic acid-Schiff staining. The alveolar macrophage plays a major role in the pathogenesis of PAP, and its role in the turn-over of alveolar surfactant is being altered by various mechanisms.
More than 90% of cases of PAP are primary autoimmune, characterised by the presence in serum of circulating autoantibodies against granulocyte-macrophages colony-stimulating factor. Other causes of PAP are genetic, secondary to other diseases or to exposure to different agents.
The evolution of the disease is unpredictable, from spontaneous remission to progression despite treatment towards pulmonary fibrosis and chronic severe respiratory failure. The gold standard of therapy is the whole lung lavage, other treatments are being still in evaluation.
The article presents a few cases that illustrate different patterns in the evolution of PAP.