bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Literatura Africana no Ensino Médio: Análise da Coleção Português Contemporâneo: Diálogo, Reflexão e Uso (2016) / African Literature in High School: Collection Analysis Contemporary Portuguese: Dialogue, Reflection and Use (2016)
Authors: Silva Maria Izabel De Jesus , Sousa Maria do Socorro Cordeiro de 
Published: January 2022

Resumo: Esta pesquisa tem como objetivo analisar como a Literatura africana de língua portuguesa se apresenta na coleção Português Contemporâneo diálogo, reflexão e uso, ensino médio dos autores Cereja; Viena; Damien (2016), adotada pela Escola de Referência Anisio Veras, da cidade de Verdejante-PE. A pesquisa está fundamentada em estudos que abordam a Literatura africana e seu contexto de ensino em livros didáticos no ensino médio, como podemos destacar em Brasil (2008); Abdala Júnior (2006), Souza (2006), Machado (2010) Silva (2003), Sidrim (2019), Lopes (2010), Chaves (2006), Honwana (2006), Fonseca; Moreira (2017), Ferreira (1987), dentre outros. A metodologia utilizada na pesquisa foi de natureza qualitativa, do tipo documental e método dedutivo, Fachin (2006), Prodanov; Freitas (2013) e Cardano (2017). Os resultados indicam que o ensino da literatura africana na coleção analisada é pouco explorado, uma vez que no volume I quase não encontramos nenhum conteúdo; no volume II apenas uma citação por conta de uma entrevista realizada com o cantor Emicida acerca do racismo e, no volume III nos deparamos com apenas um capítulo que apresenta uma pequena discussão de textos e autores. Dessa forma, vemos que os livros didáticos não contemplam em sua totalidade os estudos voltados para as literaturas africanas. --- This research aims to analyze how Portuguese-speaking African Literature is presented in the Contemporary Portuguese collection dialogue, reflection and use, secondary education by the authors Cereja; Vienna; Damien (2016), adopted by the Anisio Veras Reference School, in the city of Verdejante-PE. The research is based on studies that address African Literature and its context of teaching in textbooks in high school, as we can highlight in Brazil (2008); Abdala Júnior (2006), Souza (2006), Machado (2010) Silva (2003), Sidrim (2019), Lopes (2010), Chaves (2006), Honwana (2006), Fonseca; Moreira (2017), Ferreira (1987), among others. The methodology used in the research was qualitative, documental and deductive method, Fachin (2006), Prodanov; Freitas (2013) and Cardano (2017). The results indicate that the teaching of African literature in the analyzed collection is little explored, since in volume I we hardly found any content; in volume II there is only a quote due to an interview carried out with the singer Emicida about racism and in volume III we are faced with only one chapter that presents a small discussion of texts and authors. In this way, we see that textbooks do not fully include studies aimed at African literatures.
Contação de Histórias: Relevância no Processo Ensino/Aprendizagem na Educação Infantil / Storytelling: Relevance in the Teaching-Learning Process in Early Childhood Education
Authors: Silva Marluce Iraneide Da , França Aurênia Pereira de , Menezes Aurelania Maria De Carvalho 
Published: January 2022

Resumo: Este estudo tem como principal objetivo compreender a relevância da contação de histórias durante o processo do ensino e aprendizagem das crianças na etapa da Educação Infantil. Como objetivos específicos procurou: identificar de que forma a contação de história na educação infantil contribui para o desenvolvimento da criança no âmbito escolar; entender que a contação de histórias pode proporcionar às crianças o desenvolvimento do seu imaginário e suas possibilidades de forma ampla e significativa, através de experiências durante toda a vida e identificar os saberes necessárias no fazer pedagógico da contação de histórias na educação infantil. A metodologia adotada foi de forma bibliográfica, descritiva de uma abordagem qualitativa, fundamentado em estudo documental. O aporte teórico foi composto por Abramovich (1997), Faria (2010), Amarilha (1997), Cavalcanti (2002), Cardoso (2016), Silva (2014) entre outros. Espera-se dessa forma contribuir para um relacionamento lúdico e prazeroso da criança com a contação de histórias que tem uma das possibilidades de formação do leitor, sendo na exploração da fantasia e da imaginação que se instiga a criatividade e se fortalece a interação entre texto e leitor, fatores significativos para os processos de ensino/aprendizagem. Palavras-Chave: Contação de histórias. Ensino/aprendizagem. Família e Escola. Prática pedagógica. ---Abstract: This study aims to understand the relevance of storytelling during the teaching and learning process of children in the Early Childhood Education stage. As specific objectives, it sought to: identify how storytelling in early childhood education contributes to the child's development in the school environment; understand that storytelling can provide children with the development of their imagination and its possibilities in a broad and meaningful way, through lifelong experiences and identify the necessary knowledge in the pedagogical practice of storytelling in early childhood education. The methodology adopted was bibliographical, descriptive of a qualitative approach, based on a documentary study. The theoretical contribution was composed by Abramovich (1997), Faria (2010), Amarilha (1997), Cavalcanti (2002), Cardoso (2016), Silva (2014) among others. It is expected in this way to contribute to a playful and pleasurable relationship for the child with storytelling, which has one of the possibilities of educating the reader, being the exploration of fantasy and imagination that instigates creativity and strengthens the interaction between text and reader, significant factors for the teaching/learning processes. Keywords: Storytelling. Teaching/learning. Family and School. Pedagogical practice.
RISK ASSESSMENT OF STOCKS PORTFOLIO THROUGH ENSEMBLE ARMA-GARCH AND VALUE AT RISK (CASE STUDY: INDF.JK AND ICBP.JK STOCK PRICE)
Authors: Tarno Tarno , Trimono Trimono , Maruddani Di Asih I , Wilandari Yuciana , Utami Rianti Siwi 
Published: January 2022

Stocks portfolio is a form of investment that can be used to minimize the risk of loss. In a stock portfolio, the Value at Risk (VaR) can be predicted through the portfolio return. If portfolio return variance is heteroskedastic risk prediction can be done by using VaR with ARIMA-GARCH or Ensemble ARIMA-GARCH model approach. Furthermore, the accuracy of VaR is tested through Backtesting test. In this study, the portfolio is formed from PT Indofood CBP Sukses Makmur (ICBP.JK) and PT Indofood Sukses Makmur Tbk (INDF.JK) stocks from 01/01/2018 to 07/30/2021. The results showed that the best model is Ensemble ARMA-GARCH with MSE 1.3231×10-6. At confidence level of 95% and 1 day holding period, the VaR of the Ensemble ARMA-GARCH was -0.0213. Based on the Backtesting test, it is proven to be very accurate to predict the value of loss risk because the value of the Violation Ratio (VR) is equal to 0.
Study on observation system of seismic forward prospecting in tunnel: A case on tailrace tunnel of Wudongde hydropower station
Authors: Yang Senlin , Cao Hongyi , Zhang Yi , Chen Lei , Xu Xinji , Song Jie , Xu Lei 
Published: January 2022

Abstract
Seismic method is a major approach for detecting the seismic geological features ahead of the tunnel, understanding the distribution of unfavorable geology, and ensuring the safety of tunnel construction. Observation system is the key for seismic detection, many studies have been conducted to optimize the observation system; however, most of them focused on the surface seismic investigation and numerical simulation rather than in tunnel field environment (limited aperture and full space environment). How to obtain better wavefield information with limited observation aperture is a great challenge. In this study numerical simulation and instrumental techniques (GPR, DC, etc.) were implemented to further check the result of seismic detection at the 1# tailrace tunnel at the Wudongde hydropower station. In the field case, observation detectors were arranged spatially in the tunnel and source points were placed in four ways: linearly along a single side, on the tunnel face, in front of the detectors, and behind the detectors. Then, after data acquisition, the data processing is conducted to carry out the migration results. The imaging results indicate that the observation system with sources and detectors in liner arrangement (with equal interval) helps to suppress artifacts, further supporting the advantages of spatial observation system with liner observation line (detectors). Moreover, the study provides suggestions for geological prospecting in similar tunnel projects.
Effect of outlet impeller diameter on performance prediction of centrifugal pump under single-phase and cavitation flow conditions
Authors: Al-Obaidi Ahmed Ramadhan , Qubian Ali 
Published: January 2022

Abstract
In this current study, the transient numerical calculations using CFD code are carried out under different outlet impeller diameters for the flow field within a centrifugal pump under single-phase and cavitation conditions. Both qualitative and quantitative analyses are carried out on all of these results in order to better understand the flow structure within a centrifugal pump. Also, the investigations using different outlet impeller diameters configurations relating to the static pressure, velocity magnitude, vapour volume fraction variations, as well as pressure fluctuations in both time and frequency domain at the impeller and volute of the pump are analysed. Velocity and static pressure variations of the pump under different outlet impeller diameters range (200, 210 and 220 mm) are investigated. Reliable model is developed and validated, at various pump operating conditions, to analyse the characteristics of pressure fluctuations in both time and frequency domain. Cavitation occurrence, under different outlet impeller diameters and flow rates, are detected and correlated, using a CFD model (volume fraction distributions). Based on the developed model’s findings, at the set operating conditions ranges, the distribution and impact (cavitation and head-wises) of both the pressure and velocity are analysed. The average pressure fluctuation in the volute for do = 210 mm is higher than for do = 200 mm by about 6.74%, also the maximum pressure fluctuation for do = 220 mm is higher than for do = 210 mm by around 7.4%. Furthermore, the maximum pressure fluctuation in the impeller for do = 210 mm is higher than for do = 200 mm by 12.48%, also for do = 220 mm is higher than for do = 210 mm by 10.8%. The developed CFD models are proved valuable tools in identifying and optimizing the pump performance and characterization. The head for when do = 220 mm is higher than for when do = 200 mm under both single-phase and cavitation conditions by around 14.13% and 14.69%. The maximum pressure fluctuation for do = 200 mm is lower than for do = 210 mm by 41.58%. Furthermore, the maximum pressure fluctuation at the impeller for do = 220 mm is higher than the two models. There is a small clearance between the impeller and the volute for this model, leading to the pressure fluctuation amplitudes being higher than the other above models.
Optimal balancing of time-dependent confounders for marginal structural models
Authors: Kallus Nathan , Santacatterina Michele 
Published: January 2022

AbstractMarginal structural models (MSMs) can be used to estimate the causal effect of a potentially time-varying treatment in the presence of time-dependent confounding via weighted regression. The standard approach of using inverse probability of treatment weighting (IPTW) can be sensitive to model misspecification and lead to high-variance estimates due to extreme weights. Various methods have been proposed to partially address this, including covariate balancing propensity score (CBPS) to mitigate treatment model misspecification, and truncation and stabilized-IPTW (sIPTW) to temper extreme weights. In this article, we present kernel optimal weighting (KOW), a convex-optimization-based approach that finds weights for fitting the MSMs that flexibly balance time-dependent confounders while simultaneously penalizing extreme weights, directly addressing the above limitations. We further extend KOW to control for informative censoring. We evaluate the performance of KOW in a simulation study, comparing it with IPTW, sIPTW, and CBPS. We demonstrate the use of KOW in studying the effect of treatment initiation on time-to-death among people living with human immunodeficiency virus and the effect of negative advertising on elections in the United States.
Aqueous extract of Pedalium murex D. Royen ex L. leafy stem protects against lead induced testicular toxicity in Wistar rats
Authors: Dossou-Agoin Gerard Bessan , Gbankoto Adam , Azonbakin Simon , Osseni Razack , Yemoa Achille , Lalèyè Anatole 
Published: January 2022

Abstract

Objectives
Lead exposure seriously impairs male reproductive function. The protective capacity of Pedalium murex leafy stem and fruit aqueous extracts against lead testicular toxicity is evaluated to find herbals drugs able to improve semen quality.

Methods
Phytochemical screening were performed according to classical methods. Twenty four male rats were divided into four groups of six rats each and received the following treatments via oral route: distilled water; 0.2% lead acetate in drinking water; 0.2% lead acetate in drinking water with 400 mg/kg P. murex aqueous leafy stem extract; 0.2% leaded water with 400 mg/kg P. murex aqueous fruit extract. Treatments were administered for 70 days. Body and reproductive organs weights, sperm parameters and testicular histological sections of each group were examined.

Results
Flavonoids, tannins, coumarins, alkaloids, and lignans were found in both extracts. Lead intoxication reduced sperm motility and count but increased the percentage of morphologically abnormal sperms. The germinal epithelium of seminiferous tubules histoarchitecture was disorganized by lead. The leafy stem extract was effective in reducing lead induced testicular disruption whereas fruit has not shown any beneficial effect.

Conclusions

P. murex leafy stem aqueous extract is effective against semen alterations caused by lead.
Pulse width shortening combinations (PWSC) for ultra-dense WDM systems and calculation of PWSE
Authors: Kumar Rahul , Sappal Amandeep Singh 
Published: January 2022

Abstract
Optical communication systems introduced paradigm shift in the forte of data transmission at higher speeds and over longer distances where, on contrary electrical transmission systems failed due to higher amplitude degradation, interferences and lower bandwidths. However, pulse width increase (PWI) in the optical fiber limits the overall distance reach and also introduces more bit errors which needs to addressed. So far, pulse width shortening fibers (PFs) and fiber Bragg grating (FG) used individually in most of the reported studies, however pulse width shortening (PWS) took either high cost (in PFs) or lower PWS efficiency (PWSE) (in FG). Therefore, in this research manuscript, we made emphasis on the combined PWS effects of diverse techniques such as optical phase conjugation (OC), FG and PFs in ultra-dense wavelength division multiplexing (WDM) system. Total link length of 400 km has been covered in 128 channels ultra dense wavelength division multiplexing (UDWDM) system at 10 Gbps by incorporating diverse combined organized placements of FG, OC and PFs such as FG-PF, OC-PF and FG-PF-OC. Results revealed that economical and maximum PWSE arrangement for proposed system is FG-PF-OC.
Lymphatic osteopathic manipulative treatment reduces duration of deltoid soreness after Pfizer/BioNTech COVID-19 vaccine
Authors: Marshall Sylvia , Winter Sara , Capobianco John D. 
Published: January 2022

Abstract
Pfizer-BioNTech BNT162b2 is one of the three U.S. Food and Drug Administration (FDA)-approved vaccines for the prevention of COVID-19. Its most common side effect, injection site pain, occurs because of locally recruited inflammatory mediators and is mitigated by the lymphatic system. Side effects may discourage individuals from receiving vaccines; therefore, reducing the duration of injection site pain can promote vaccination compliance. Osteopathic manipulative treatments (OMT) can directly affect the physiology underlying muscle soreness; however, there is currently no literature that supports the use of OMT in this scenario. In this case report, an otherwise healthy male presented with acute left deltoid soreness after receiving the Pfizer COVID-19 vaccine. The pain began 5 h prior to the visit. Three hours after being treated with lymphatic OMT, the severity of the pain was significantly reduced and was alleviated 8h after onset in comparison to the median duration of 24–48 h. He received his second dose 3 weeks later. This case report can provide future studies with the groundwork for further investigating the role of OMT in treating postvaccination muscle soreness, which can improve patient satisfaction and potentially promote vaccination compliance.
Language politics in Nepal: A socio-historical overview
Authors: Gautam Bhim Lal 
Published: January 2022

Abstract
This paper aims to outline the language politics in Nepal by focusing on the influences and expansions shifted from Global North to the Global South. Based on a small-scale case study of interviews and various political movements and legislative documents, this paper discusses linguistic diversity and multilingualism, globalization, and their impacts on Nepal’s linguistic landscapes. It finds that the language politics in Nepal has been shifted and changed throughout history because of different governmental and political changes. Different ideas have emerged because of globalization and neoliberal impacts which are responsible for language contact, shift, and change in Nepalese society. It concludes that the diversified politics and multilingualism in Nepal have been functioning as a double-edged sword, which on the one hand promotes and preserves linguistic and cultural diversity and on the other hand squeezes the size of diversity by vitalizing the Nepali and English languages through contact and globalization.
Half-space albedo problem for the Anlı-Güngör scattering function
Authors: Bozkır Ali Zafer , Türeci Recep Gökhan , Sahni Dinesh Chandra 
Published: January 2022

Abstract
One speed, time-independent and homogeneous medium neutron transport equation is solved for second order scattering using the Anlı-Güngör scattering function which is a recently investigated scattering function. The scattering function depends on Legendre polynomials and the t parameter which is defined on the interval [−1,  1]. A half-space albedo problem is examined with the FN method and the recently developed SVD method. Albedo values are calculated with two methods and tabulated. Thus, the albedo values for the Anlı-Güngör scattering are compared with these methods. The behaviour of the scattering function is similar to İnönü’s scattering function according to calculated results.
Showing Mathematical Flies the Way Out of Foundational Bottles: The Later Wittgenstein as a Forerunner of Lakatos and the Philosophy of Mathematical Practice
Authors: Pérez-Escobar José Antonio 
Published: January 2022

AbstractThis work explores the later Wittgenstein’s philosophy of mathematics in relation to Lakatos’ philosophy of mathematics and the philosophy of mathematical practice. I argue that, while the philosophy of mathematical practice typically identifies Lakatos as its earliest of predecessors, the later Wittgenstein already developed key ideas for this community a few decades before. However, for a variety of reasons, most of this work on philosophy of mathematics has gone relatively unnoticed. Some of these ideas and their significance as precursors for the philosophy of mathematical practice will be presented here, including a brief reconstruction of Lakatos’ considerations on Euler’s conjecture for polyhedra from the lens of late Wittgensteinian philosophy. Overall, this article aims to challenge the received view of the history of the philosophy of mathematical practice and inspire further work in this community drawing from Wittgenstein’s late philosophy.
Cerebellar ataxia, neuropathy and vestibular areflexia syndrome (CANVAS): from clinical diagnosis towards genetic testing
Authors: Thieme Andreas , Depienne Christel , Timmann Dagmar 
Published: January 2022

AbstractThe cerebellar ataxia, neuropathy and vestibular areflexia syndrome (CANVAS) is a late-onset and recessively inherited ataxia. For many years, CANVAS has been diagnosed based on the clinical phenotype. Only recently, a large biallelic pentanucleotide repeat expansion in the replication factor C subunit 1 (RFC1) gene has been identified as the underlying genetic cause for the large majority of CANVAS cases. Subsequently, other phenotypes such as ataxia with chronic cough, incomplete CANVAS and MSA-C-like phenotypes have been associated with biallelicRFC1repeat expansions. Because of this heterogeneity it has been suggested to change the name of the disease to “RFC1 disease”. Chronic cough is characteristic and can precede neurological symptoms by years or decades. In the neurological examination signs of cerebellar, sensory, and vestibular ataxia are frequently observed. Nerve conduction studies usually show absent or markedly reduced sensory nerve action potentials. On brain MRI cerebellar degeneration and spinal cord alterations are common. In later disease stages more widespread neurodegeneration with additional involvement of the brainstem and basal ganglia is possible. As yet, the exact incidence ofRFC1-associated neurological diseases remains uncertain although first studies suggest thatRFC1-related ataxia is common. Moreover, the pathophysiological mechanisms caused by the large biallelic pentanucleotide repeat expansions inRFC1remain elusive. Future molecular and genetic research as well as natural history studies are highly desirable to pave the way towards personalized treatment approaches.
X-linked dystonia-parkinsonism: over and above a repeat disorder
Authors: Pozojevic Jelena , Cruz Joseph Neos , Westenberger Ana 
Published: January 2022

Abstract
X-linked dystonia-parkinsonism (XDP) is an adult-onset neurodegenerative movement disorder, caused by a founder retrotransposon insertion in an intron of the TAF1 gene. This insertion contains a polymorphic hexanucleotide repeat (CCCTCT)n, the length of which inversely correlates with the age at disease onset (AAO) and other clinical parameters, aligning XDP with repeat expansion disorders. Nevertheless, many other pathogenic mechanisms are conceivably at play in XDP, indicating that in contrast to other repeat disorders, the (CCCTCT)n repeat may not be the actual (or only) disease cause. Here, we summarize and discuss genetic and molecular aspects of XDP, highlighting the role of the hexanucleotide repeat in age-related disease penetrance and expressivity.