bluuebunny/crossref_metadata_2025 huggingface dataset:
Developments and Improvements Using Hot Wire Gas Tungsten Arc Welding – A Review
Authors: Magadum Chidanand , Ponnusamy Senthil , Muthukrishnan Manohar , Nair Biju
Published: May 2022

Gas tungsten arc welding (GTAW) is a high quality welding process widely used in most industries. However, the process is limited to higher welding speed and higher deposition rate. To overcome this limitation, the GTAW process is modified in such a way that filler metal is heated prior to entering into the weld pool. This heating is carried out by resistance heating. Hot wire GTAW (HW-GTAW) ensures the availability of arc energy to melt the base metal. This results in an increase in deposition rate and additionally, increases the welding speeds to a large extent. Welding is an important form of joining materials and is most significant for the application of structural components. This paper reviews the application of the hot wire technique during conventional GTA welding, thereby providing the benefits in terms of metallurgical control, energy efficiency and rate of deposition. This process has the potential to achieve high efficiency and welding faster with lower heat input. The HW-GTAW process is widely used in welding various novel materials and it is a promising alternative to the conventional GTAW process with lower heat input and narrower heat affected zones. This process not only eliminates the various defects in the weld joints but also increases productivity in industries.
Implementasi Algoritma K-Means Clustering Seleksi Siswa Berprestasi Berdasarkan Keaktifan dalam Proses Pembelajaran
Authors: Dewi Falih Pramataning , Aryni Priskila Siwi , Umaidah Yuyun
Published: May 2022

The learning process through various interactions and learning experiences has a considerable influence on developing student activity to improve the quality of education. The teacher is the most important factor in determining the success of students in the implementation of the process. The development of the quality and activeness of students in learning is a basic element as a form of success in the learning process which of course not all students have a level of speed in understanding material. This is a concern for schools in improving the quality of education. The purpose of this study was to classify the level of activity of students at SMP ABC using the correlation between grades and the level of student activity who would be recommended to take part in competitions or prospective scholarship recipients. The data source that we used in this study came from the State Junior High School ABC which consists of several variables, including student attendance data, academic scores, psychomotor scores, and affective values. The method used in this research is the Clustering method with the K-means Algorithm. The results of this study can be grouped into 3 clusters including cluster 0 indicating active students as many as 30 students, cluster 1 showing inactive students as many as 8 students, and cluster 2 indicating less active students as many as 21 students.
Analisis Unjuk Kerja TCP Sack Menggunakan Antrian Random Early Detection
Authors: Asasunnaja Rinny , Sugiantoro Bambang
Published: May 2022

As time goes by, the current technology is also developing very rapidly, the rapid development of technology, especially on the internet network is also developing so that it is expected to continue to provide the best quality to meet the growing and fast information needs. An internet network is highly demanded of its best quality, one of which is in the spotlight to be developed, namely TCP Transmission Control Protocol. The efficiency and smoothness of the data transmission process is the most important thing in a communication network. TCP is one aspect that supports today’s fast internet, with TCP we can exchange information accurately, quickly, and well. In this study, researchers are interested in analyzing the performance of TCP Sack using the Random Early Detection queue. By doing this research is expected to know the performance of TCP Sack by looking at the parameter values of packet delivery ratio, throughput, end to end delay, and packet drop. Based on the results of the analysis, it can be concluded that end-to-end delay parameter testing on the TCP Sack still has poor performance, while for testing the packet delivery ratio, throughput, and packet drop TCP Sack already has good performance.
The Therapeutic Potential of Iraqi Cressa Cretica Species on Metabolic Features and Estrous Cycle in PCOS Rat-model
Authors: Abdulhussein Ali Jabbar , Mutlag Shihab Hattab
Published: May 2022

Introduction: Polycystic ovary syndrome is one of the common syndromes in women which is caused by endocrine and metabolic disorder. PCOS is associated with various spectrum consequences in the many aspects, including reproductive dysfunction, endocrine, and metabolic. Aim: assessment of n-butanol fraction of Cressa cretica plant effect on metabolic features like body weight and fasting blood glucose and estrous cycle of rat PCOS-model. Materials and methods: 18 female rats with 21 days old were divided into three group and 6 animals with each group. Control group was treated with propylene glycol S.C while PCOS-model and n-butanol fraction groups were treated with testosterone propionate 10mg/kg/ day for 30 days. Then, 35 days of second treatment with propylene glycol for control and PCOS-model group while n-butanol group was given Cressa cretica n-butanol extract 100mg/kg/day with preliminary screening of n-butanol fraction. Results: body weight and fasting blood glucose were significantly reduced (P*<0.05) and restoring the estrous cycle of rats in compared to PCOS-model. Conclusion: Cressa cretica extract content like flavonoids compounds might have a therapeutic effect on sex hormones and ovary morphology.
Using a New Technique (ZH2) for Finding the Optimal Solution of Assignment Problems
Authors: Zabiba Mohammed S.M , M Alirawani Zahraa Jawad
Published: May 2022

Assignment problems are a category of transportation tricky and one of the linear programming categories in operations research. The assignment problem is used to find one for one among a group of workers, each of whom specializes in one of a set of jobs. The main goal is to reduce gross cost (or gross time) in accordance with user requirements.This study proposes a novel approach for solving the assignment problem, along with numerical examples that compare the results of the new method's solution to the results of the Hungarian method's answer.
Linear Optical Properties of Organic Laser Dye Doped with PMMA Polymer
Authors: Kadhum Shahad H. , Hussainey Afrah M. Al , Naser Ban A. , Mahdi Riyadh S. , Abbas Talib M.
Published: May 2022

In this work, linear optical characteristics of Azure B organic laser dye doped with PMMA polymer dissolved in DMF solvent at concentration (1×10-3 M) were studied. This research includes presenting the results and discussing the absorption spectra and linear optical properties (transmission, linear absorption and refraction coefficient), by studying the effect of adding polymer (PMMA) with different ratios on this pure dye. The result showed that possibility of using this dye in liquid state laser.
Using machine translation as a parallel text to access literature for
modern language learning
Authors: Bavendiek Ulrike
Published: May 2022

Parallel texts in the form of Graded Readers have a long tradition in
foreign language learning. When presenting the translation in the reader’s
first language alongside the target language text, parallel texts offer
access to literary texts, to their stories, characters, plot developments,
and cultural content, without the need for time-consuming vocabulary or
grammar searches, which would otherwise distract from the enjoyment of the
texts. This chapter will describe and evaluate a teaching activity that
makes use of Google translation as parallel text. This activity exploits the
inconsistencies and obvious mistakes of the English machine translation as
incentives to undertake close reading of the affected passages in the
original foreign language text and to suggest a better translation. It
allows beginners and intermediate students to benefit from the aesthetic
qualities of literary texts while developing their grammatical accuracy and
cultural understanding through focus on form. The evaluation of its
effectiveness will be based on class discussions. Pedagogic translation
exercises are used to promote deep engagement with the foreign language. At
the same time, the students learn to appreciate the complexities of
translation both as a process and as a product and develop a critical
understanding of translated, especially machine translated, text. The
opportunity to improve inferior machine translations while engaging with
rich, multi-layered literary texts is shown to be a motivating activity for
language learners, who also develop their digital literacy with an
understanding of the shortcomings of machine translations.
Comparison Analysis of Optimal Portfolio Formation on Jakarta Islamic Index 70 (JII70) (Markowitz Model and Single Index Model Approach)
Authors: Anwar Indah Lestari , Damang Kasman , Pakki Erlina
Published: May 2022

This study analyzes the optimal portfolio formation of Islamic stocks on Jakarta Islamic Index 70 (JII70) with the Markowitz and Single Index models. The analysis then compares the proportion of funds, return, and portfolio risk. The subsequent analysis compares the two models' optimal and non-optimal returns and risks. This study uses data on stock prices, dividends, BI-7 Day Reverse Repo Rate, and Composite Stock Price Index for May 2018-September 2021. The research sample is 37 JII70 stock issuers obtained by the purposive sampling technique. The Markowitz model produces 12 combinations, a certain expected return of 0.66% and the best portfolio risk of 3.22%. In comparison, the Single Index Model produces nine stock combinations, the best-expected return of 2.28%, and a certain portfolio risk of 7.53%. Analysis with the Markowitz Model shows no significant difference between stock returns included in the optimal and non-optimal portfolio. However, there is a significant difference between stock risk. In addition, in the Single Index Model, it was found that there was a significant difference between stock returns, including optimal and non-optimal portfolios. However, there was no significant difference between stock risk. The study results can be an essential reference for JII70 investors and stakeholders before and during the Covid-19 pandemic in Indonesia.
Compatibility between delay functions and highway capacity manual on Iraqi highways
Authors: Mahdi Mohammed Bally , Alrawi Areaj Khairy , Leong Lee Vien
Published: May 2022

Volume delay functions (VDFs) are mathematical relationships used by the traffic allocation step of demand forecasting models to take into account the effect of increased traffic flow on the time spent to travel each possible route between different travel sources and destinations. The VDF is usually applied in static traffic assignment to describe the resultant link travel times, as a function of flow and capacity and free-flow travel time. This study aims to investigate the interface between the delay functions used by demand forecasting models and the highway capacity manual (HCM) model flow-speed relationships. The most commonly used VDFs in transport demand modeling packages in the literature were identified. The Bureau of Public Roads (BPR), conical functions (CF), Akçik and Troutbeck function (ATF), and delay logistics function (LF) were described. The four VDFs and the current HCM models were calibrated for the Iraqi road environment, and their compatibilities were examined. Results show that the best adjustments were obtained using the BPR function (quadratic error 0–0.012) and LF (quadratic error 0–0.002). The roles of CF and ATF were used with care, as both appear to neglect the delay in the condition of small to medium traffic patterns typical to country roads. Particularly, in response to single-lane roads, the LF has proven to be useful due to its potential to represent significant delays for low traffic flows and simultaneously produce more delays in congestion conditions; furthermore, the effect of flow as well as intersection spacing is obviously nonlinear. As flow reaches 600 pcu/h/lane, running time increases quickly. With more intersections per kilometer, the impact is obviously greater.
Molecular docking and molecular dynamics approach to identify potential compounds in Huperzia squarrosa for treating Alzheimer’s disease
Authors: Tung Bui Thanh , Hang Ta Thi Thu , Kim Nguyen Bao , Nhung Nguyen Hong , Linh Vu Khanh , Thu Dang Kim
Published: May 2022

Objectives

Alzheimer’s disease (AD) is a lingering progressive neurodegenerative disorder that causes patients to lose cognitive function. The enzyme Acetylcholinesterase (AChE), Butyrylcholinesterase (BuChE), Monoamine oxidase A (MAO A), Beta-secretase cleavage enzyme (BACE 1) and N-methyl-D-aspartate (NMDA) receptors play an important role in the pathogenesis of Alzheimer’s disease. Therefore, inhibiting enzymes is an effective method to treat Alzheimer disease. In this study, we evaluated in silico inhibitory effects of AChE, BuChE, MAO A, BACE 1 and NMDA enzyme of Huperzia squarrosa’s compounds

Methods

The three-dimensional (3D) of N-methyl-D-aspartate receptor (PDB ID: 1PBQ), enzyme β-secretase 1 (PDB ID: 4X7I), enzyme monoamine oxidase A (PDB ID: 2Z5X), enzyme butyrylcholinesterase (PDB ID: 4BDS) and enzyme acetylcholinesterase (PDB ID: 1EVE) were retrieved from the Protein Data Bank RCSB. Molecular docking was done by Autodock vina software and molecular dynamics (MD) simulation of the ligand-protein complex with the least binding energy pose was perfomed by MOE. Lipinski Rule of Five is used to compare compounds with drug-like and non-drug-like properties. Pharmacokinetic parameters of potential compounds were evaluated using the pkCSM tool.

Results

Based on previous publication of Huperzia squarrosa, we have collected 15 compounds. In these compounds, huperzine B, huperzinine, lycoposerramine U N-oxide, 12-epilycodine N-oxide showed strongly inhibit the five AChE, BuChE, MAO A, BACE 1 and NMDA targets for Alzheimer’s treatment. Lipinski rule of five and ADMET predict have shown that four above compounds have drug-likeness properties, good absorption ability and cross the blood-brain barrier, which have the most potential to become drugs for the treatment of Alzheimer’s in the future. Furthermore, MD study showed that huperzine B and huperzinine have stability of the docking pose with NMDA target.

Conclusions

In this study, we found two natural compounds in Huperzia squarrosa including Huperzine B and Huperzinine have drug-likeness properties, good absorption ability and cross the blood-brain barrier, which have potential to become drugs for the treatment of Alzheimer’s in the future.
Fabrication of self-assembly CNT flexible film and its piezoresistive sensing behaviors
Authors: Zhou Xiaoyang , Luo Jianlin , Zhang Jigang , Wu Xiaoping , Tao Xuejun , Zhu Min
Published: May 2022

Strain sensors are essential for health monitoring of complex-shaped structures. Here, carbon nanotube thin films (CNTFS) with different double-layers were fabricated on a flexible polyethylene terephthalate substrate using layer-by-layer self-assembly technique, and their resistance behaviors and piezoresistive sensing performances were comprehensively conducted. Results show that the assembled layers of CNTFS are evenly and compactly deposited with about 7–15 μm, and the resistance decreases with the increase in the assembly layer number. The piezoresistive sensing behavior increases first and then decreases with the increase in the number of assembly layers along with compression or tension cyclic loading; the nine-double-layer CNTFS shows the best linearity, sensitivity, hysterics, and repeatability of 3.22%, 0.12684/mm, 2.16%, and 3.06%, respectively.
A bacterial effector counteracts host autophagy by promoting degradation of an autophagy component
Authors: Leong Jia Xuan , Raffeiner Margot , Spinti Daniela , Langin Gautier , Franz‐Wachtel Mirita , Guzman Andrew R , Kim Jung‐Gun , Pandey Pooja , Minina Alyona E , Macek Boris , Hafrén Anders , Bozkurt Tolga O , Mudgett Mary Beth , Börnke Frederik , Hofius Daniel , Üstün Suayib
Published: May 2022

Beyond its role in cellular homeostasis, autophagy plays anti‐ and promicrobial roles in host–microbe interactions, both in animals and plants. One prominent role of antimicrobial autophagy is to degrade intracellular pathogens or microbial molecules, in a process termed xenophagy. Consequently, microbes evolved mechanisms to hijack or modulate autophagy to escape elimination. Although well‐described in animals, the extent to which xenophagy contributes to plant–bacteria interactions remains unknown. Here, we provide evidence that Xanthomonas campestris pv. vesicatoria (Xcv) suppresses host autophagy by utilizing type‐III effector XopL. XopL interacts with and degrades the autophagy component SH3P2 via its E3 ligase activity to promote infection. Intriguingly, XopL is targeted for degradation by defense‐related selective autophagy mediated by NBR1/Joka2, revealing a complex antagonistic interplay between XopL and the host autophagy machinery. Our results implicate plant antimicrobial autophagy in the depletion of a bacterial virulence factor and unravel an unprecedented pathogen strategy to counteract defense‐related autophagy in plant–bacteria interactions.
Glyoxalase 1 knockdown induces age‐related β‐cell dysfunction and glucose intolerance in mice
Authors: Prevenzano Immacolata , Leone Alessia , Longo Michele , Nicolò Antonella , Cabaro Serena , Collina Francesca , Panarese Iacopo , Botti Gerardo , Formisano Pietro , Napoli Raffaele , Beguinot Francesco , Miele Claudia , Nigro Cecilia
Published: May 2022

Tight control of glycemia is a major treatment goal for type 2 diabetes mellitus (T2DM). Clinical studies indicated that factors other than poor glycemic control may be important in fostering T2DM progression. Increased levels of methylglyoxal (MGO) associate with complications development, but its role in the early steps of T2DM pathogenesis has not been defined. Here, we show that MGO accumulation induces an age‐dependent impairment of glucose tolerance and glucose‐stimulated insulin secretion in mice knockdown for glyoxalase 1 (Glo1KD). This metabolic alteration associates with the presence of insular inflammatory infiltration (F4/80‐positive staining), the islet expression of senescence markers, and higher levels of cytokines (MCP‐1 and TNF‐α), part of the senescence‐activated secretory profile, in the pancreas from 10‐month‐old Glo1KD mice, compared with their WT littermates. In vitro exposure of INS832/13 β‐cells to MGO confirms its casual role on β‐cell dysfunction, which can be reverted by senolytic treatment. These data indicate that MGO is capable to induce early phenotypes typical of T2D progression, paving the way for novel prevention approaches to T2DM.
CALCULATION OF CUK CONVERTER USING THE AVERAGING METHOD BASED ON LAGRANGE THEOREMS
Authors:   Institute of Electrodynamics of the National Academy of Sciences of Ukraine,  pr. Peremohy, 56, Kyiv, 03057, Ukraine, Rudenko Yu.V.
Published: May 2022

A mathematical model of the Cuk converter has been developed using the state-space averaging method based on La-grange theorems for the mode of continuous currents and voltages at storage reactive elements. Analytical expressions are obtained based on relative variables, making it possible to calculate processes in the converter in a wide range of parame-ters at the control zone of the duration of switching intervals. The limiting dependences of converter parameters between the modes of discontinuous and continuous currents and voltages in storage elements are calculated to determine the effec-tive modes of operation of the device. Analytical dependencies are obtained, making it possible to determine the maximum values of currents and voltages in the elements of the converter over the entire switching range and allowing choosing these elements of the device with acceptable parameters at the stage of its design. Ref. 14, fig 5, table.
Fractional Mathematical Model of Covid-19 with Quarantine
Authors: Nisardi Muhammad Rifki , Kasbawati Kasbawati , Khaeruddin Khaeruddin , Robinet Antonin , Chetehouna Khaled
Published: May 2022

AbstractThis study aims to observe the dynamics of the spread of COVID-19 with the SIR-Model by considering the quarantine (Q) scheme. We also involve a fractional order in the model. Then the basic reproduction numbers were calculated using the generation matrix method, analyzed the local stability of the fractional model for each equilibrium point, and observed its relation to the basic reproduction numbers. We perform the sensitivity analysis to see the effect of parameters on changes in the basic reproduction numbers. We applied the Grunwald-Letnikov method for numerical simulations. Estimation for parameters was also carried out on the existing parameters in the model to obtain parameter values that could represent the actual conditions. Furthermore, with a fractional model, we approximated the model to the data of COVID-19 in West Sulawesi, Indonesia, so that we could obtain a fractional order since it could describe the data more accurately.Keywords: SIR-Q Model; COVID-19; basic reproduction number; Fractional Mathematical Model; Grunwald Letnikov Method. AbstrakPenelitian ini bertujuan untuk mengkaji dinamika penyebaran COVID-19 dengan model matematika orde fraksional penyebaran penyakit SIR-Q dengan mempertimbangkan skema karantina (Q) untuk mengendalikan penyebaran COVID-19. Bilangan reproduksi dasar dihitung menggunakan metode matriks generasi. Kemudian, dianalisa kestabilan lokal model fraksional untuk titik kesetimbangan dan lalu dianalisa kaitannya dengan bilangan reproduksi dasar. Analisis sensitivitas dilakukan untuk mengamati pengaruh parameter terhadap perubahan bilangan reproduksi dasar. Simulasi numerik dilakukan dengan menggunakan metode eksplisit Grunwald-Letnikov. Estimasi juga dilakukan terhadap parameter yang ada pada model untuk memperoleh nilai parameter yang merepresentasikan kondisi aktual penyebaran COVID-19 di Sulawesi Barat. Selanjutnya dengan model fraksional dilakukan pendekatan terhadap data kasus aktif COVID-19 di Sulawesi Barat sehingga diperoleh orde fraksional tertentu yang menghasilkan pendekatan nilai kasus aktif COVID-19 yang lebih akurat terhadap real data.Kata Kunci: Model SIR-Q; COVID-19; bilangan Reproduksi Dasar; Model Matematika Fraksional; Metode Grunwald-Letnikov.
Application of Genetic Algorithm on Inclusive Labeling of a Graph
Authors: Santoso Kiswara Agung , Setiawan Bagus Arief , Kusbudiono Kusbudiono
Published: May 2022

AbstractAs science developed, heuristic methods began to be used in graph coloring. Heuristic methods that have been used for graph coloring include Genetic Algorithm, Tabu Search, and Ant Colony Algorithm. A Genetic Algorithm is a method for solving optimization problems. In this study, the Genetic Algorithm will be used for the issue of labeling irregular vertices of inclusive distances to label any graph inclusively. We restrict an inclusive 1-distance to a simple graph using one-point crossover and mutation. The steps are a generation of random chromosomes, evaluating chromosome fitness values with tournament selection, conducting an evolutionary process consisting of one-point crossover and mutation, repeating the process until the termination criteria are met. The results of implementing the genetic algorithm on inclusive labeling can be determined by the chromatic number based on the adjacency matrix. The results of this labeling can be used as an alternative solution to the problem of inclusive labeling.Keywords: Genetic Algorithm; graph labeling; inclusive labeling. AbstrakSeiring berkembangnya ilmu pengetahuan metode heuristic mulai digunakan dalam pewarnaan graf. Metode heuristic yang telah digunakan untuk pewarnaan graf antara lain Algoritma Genetika, Tabu Search, dan Algoritma Semut (Ant Colony). Algoritma Genetika merupakan metode untuk menyelesaikan masalah optimasi. Pada penelitian ini, Algoritma Genetika digunakan untuk masalah pelabelan titik tak-teratur jarak inclusive agar dapat melabeli sebarang graf secara inclusive. Kami membatasi lingkup penelitian dengan menerapkan jarak inclusive 1 pada graf sederhana, menggunakan crossover satu titik dan mutasi. Metode yang digunakan dalam penelitian ini adalah studi literatur dengan mengkaji penggunaan Algoritma Genetika pada pelabelan titik tak-teratur jarak inclusive suatu graf. Langkah-langkah yang dilakukan adalah: pembangkitan kromosom secara acak, evaluasi nilai fitness kromosom dengan tournament selection, melakukan proses evolusi yang terdiri dari crossover satu titik dan mutasi, perulangan proses sampai kriteria pemerhentian terpenuhi. Hasil implementasi algoritma genetika pada pelabelan inclusive adalah dapat mengetahui bilangan kromatik berdasarkan matriks adjacency. Hasil pelabelan ini dapat dijadikan sebagai salah satu alternatif penyelesaian masalah pelabelan inklusif. Kata Kunci : Algoritma Genetika; pelabelan graf; pelabelan inklusif.
Criteria for Design of Bearing Pads
Authors: Iverson James , Pfeiffer Donald
Published: May 2022

This report is based on a research study conducted by Wiss, Janney, Elstner Associates, Inc., including both site surveys and testing of bearing pads used in building construction. Recommendations are given for design of various types of pads.
Introduction to the Volume: On the State of Identity Research in CALL
Authors: Klimanova Liudmila
Published: May 2022

This volume is about identity and its relationship with language as it is learned and used in digitally mediated spaces. Addressing current research and scholarship on second language (L2) use and development, it aims to give readers a comprehensive overview of key themes, constructs, and contexts that have emerged from language learners’ interactions with and in continuously shifting digital landscapes.
Language, Identity and Positioning in Virtual Exchange
Authors: Helm Francesca , Hauck Mirjam
Published: May 2022

In language education, virtual exchange (VE) is hailed as a form of experiential learning that offers language learners opportunities for (semi)authentic interactions with distant peers, mediated by technology. This conceptual contribution explores how - as a result of often implicit language ideologies - languages are organized in VE and the possibilities offered for identity work in VE by the framing and design of the exchanges. Using two instantiations of VE models - Tandem and Online Facilitated Dialogue (OFD) - as examples, we consider the identity categorizations and language ideologies made salient in the design of the VE.
Multilingual Identities and Intercultural Education during Telecollaboration: A Heritage Language Learner Case Study
Authors: Lesoski Carly M.
Published: May 2022

This case study presents data from a heritage language learner’s telecollaboration interactions in an upper-level German language course, highlighting the participant’s identities as a multilingual speaker of German, English, and Spanish. Increased understanding of language learner identities enables the development of strategies to mitigate impeding factors in intercultural and multilingual education.
Cycles of Translanguaging and Group Identity Performances in Multi-Party Video Mediated Telecollaboration: Triggers, Consequences, and Implications
Authors: Klimanova Liudmila
Published: May 2022

This volume focuses on a range of topics and studies that address the notion of plurilingualism and multilingual identity in computer-mediated language learning (CALL) spaces. Interest in digital multilingual identity in the fields of applied linguistics and language education has been growing exponentially in recent years. New theoretical assumptions and recent global challenges have urged researchers to problematize the traditional notion of virtual identity in the face of increased virtual connectedness and the hybridization of transcultural and translingual practices. The chapters in this collection contribute to this fast-growing body of interdisciplinary research, featuring conceptual papers and research studies of identity performance and multilingual communication in highly complexified digitally mediated social platforms. The volume seeks to (a) contextualize digital multilingual communication as it pertains to language learning and teaching via a historical and conceptual overview of the multilingual movement in technologically mediated SLA; (b) offer in-depth explorations of multilingual practices and digital affordances that affect language learner identities beyond the classroom context, (c) fill the research void by exploring empirically the critical aspects of multilingual identity deployment in digital contexts where language learners actively participate in translingual and plurilingual practices, and (d) illustrate new ways of evaluating and adapting teaching practices to accommodate multilingual subjects, and reflect the increasingly hyperlingual nature of digital communication.
Organização e oferta da assistência fisioterapêutica em resposta à pandemia da COVID-19 no Brasil
Authors: Souza Thiago Santos de , Aleluia Ítalo Ricardo Santos , Pinto Elen Beatriz , Pinto Junior Elzo Pereira , Pedreira Rhaine Borges Santos , Fraga-Maia Helena , Pinto Juliana Martins
Published: May 2022

Resumo A recuperação das pessoas acometidas pela COVID-19 é um processo que continua para além do quadro agudo da infecção pelo Sars-CoV-2. O comprometimento de diversos sistemas corporais pode acarretar impactos funcionais e demandar assistência fisioterapêutica contínua tanto na atenção ambulatorial quanto na atenção primária à saúde (APS). Neste ensaio, busca-se discutir os desafios da organização e da oferta de assistência fisioterapêutica em resposta à pandemia da COVID-19 no Brasil. A análise foi sumarizada em três dimensões: oferta da assistência fisioterapêutica na APS e na atenção ambulatorial, e oferta de atenção fisioterapêutica por telessaúde. Conclui-se que: a reabilitação funcional depende da capacidade de resposta da APS; existe um déficit de serviços de reabilitação que antecede a pandemia, e pode comprometer respostas satisfatórias às demandas do atual contexto epidemiológico; faz-se necessária a articulação entre as equipes de fisioterapia ambulatorial e da APS; embora a telessaúde seja um recurso e uma oportunidade para ampliar o acesso da população à reabilitação funcional, sua utilização exige cautela; o fisioterapeuta possui papel crucial em todo o continuum de cuidados da COVID-19.
Redes, atores e agenciamentos na constituição da Política de Práticas Integrativas e Complementares no Brasil
Authors: Melo Aislan Vieira de , Sant’Ana Graziella Reis de , Bastos Paulo Roberto Haidamus de Oliveira
Published: May 2022

Resumo Como política pública, práticas integrativas e complementares estão disponíveis no sistema público de saúde no Brasil desde 2006. Este texto, de caráter qualitativo e baseado em dados secundários da literatura e de documentos oficiais, tem o objetivo de compreender a Política Nacional de Práticas Integrativas e Complementares, a partir da sua presença por variados espaços da sociedade. Contornando a comparação entre o documento e a prática da política, propõe-se um caminho teórico e metodológico que possibilite novas percepções sobre a política em situações concretas. Aplicando a teoria ator-rede e a abordagem do agenciamento, as análises permitem perceber a política como um emaranhado de ações que faz surgir múltiplas realidades e versões contextuais da política, dependendo dos atores com os quais se associa. Desse modo, os resultados apontam para complexidade escondida por trás da aparente singularidade, revelando a pluralidade de atores que constituem essas realidades e demonstrando a dependência da política com relação à ação de outros atores para que ela se torne realidade. Seguindo esse caminho, é possível gerar novos elementos que contribuam para a análise da política na prática, somando-se aos estudos que enfatizam a comparação entre o documento e a prática.
Physical activity and perceived environment among adults from a city in Southern Brazilian
Authors: Monteiro Luciana Zaranza , Farias Joni Marcio de , Lima Tiago Rodrigues de , Schäfer Antônio Augusto , Meller Fernanda de Oliveira , Silva Diego Augusto Santos
Published: May 2022

Abstract The article aimed to verify the association between physical activity (PA) and perceived environment among adults from a city in southern Brazil. This is a population-based cross-sectional study with 820 adults living in the city of Criciúma-SC. Perceived environment was assessed using the Neighborhood Environmental Walkability scale and PA in the leisure and transportation domains using the long version of the International PA Questionnaire. It was observed that the neighborhood with public spaces for the practice of physical exercises and dog walking was associated with higher prevalence of compliance with moderate-to-vigorous physical activity (MVPA) guidelines. The fact of having an invitation from friends and/or relatives for PA, sporting events and the habit of dog walking were associated with leisure-time walking. Access to places for the purchase of fresh fruits/ vegetables, light/diet foods, to have sidewalks in most streets, to have pedestrian crossings and sporting events in the neighborhood were associated with higher prevalence of active transportation. Conversely, places for snacks or fast food in the neighborhood were associated with lower prevalence of active transportation. The perception of environmental variables was associated with MVPA, walking and active transportation.
Availability of food stores around Brazilian schools
Authors: Novaes Taiane Gonçalves , Mendes Larissa Loures , Almeida Luciene Fátima Fernandes , Ribeiro Andréia Queiroz , Costa Bruna Vieira de Lima , Claro Rafael Moreira , Pessoa Milene Cristine
Published: May 2022

Abstract The aim of this study was to analyze the availability of food stores in the territory of schools. Ecological study conducted in Viçosa, Minas Gerais, Brazil, with all schools (N=42) and food stores (N=656). Data were collected through the objective evaluation of the environment, and the stores were categorized into healthy, unhealthy, mixed and supermarkets. Bivariate Ripley´s K function assessed the existence of clustering of categories of stores in the territory of schools. All the schools had at least one food store in their territory. Unhealthy stores were the most common and closest to the schools. There were more stores around private schools, offering high school education, located in the central region and in the highest per capita income tercile. The bivariate Ripley´s K function showed evidence of clustering of stores at all analyzed distances (400 to 1.5 km) with up to 3 times more establishments than would be expected if they were randomly distributed. Therefore, schoolchildren were likely exposed to unhealthy food environments, regardless of neighborhood income and location, which may contribute to inadequate food choices.
CHANGES IN LOWER LIMB BONE DENSITY IN YOUNG JUMPERS
Authors: Zhang Long
Published: May 2022

ABSTRACT Introduction The research on the exercise effect on the human bone density and skeletal muscle content mainly focuses on the middle-aged and elderly population. However, few studies on different sports’ effects upon bone and muscle density in college students and adolescents. Objective Study the effect of physical training on bone density and lower limb jumping ability in young people. Methods The relationship between bone mineral density and lower limb jumping ability was analyzed by mathematical statistics. Male individuals aged 10-20 years were divided into the early adolescence group (n=26) and late adolescence group (n=37). According to training status, they were divided into preadolescent athletic group (n=11), non-athletic group (n=15); puberty athletic group (n=11) and non-athletic group (n=15). The following indicators were used: bone density, vertical jump test, continuous vertical jump test, RDJ index. Results Athletes’ bone mineral density (BMD) is related to their muscle strength. These results suggest a certain internal connection between the (BMD) of bone tissue and the development of muscle strength. Therefore, there is evidence of differences in lower limb bone mineral density and jumping ability between the two groups. Conclusion Bone mineral density in the lower limbs of adolescents is correlated with jumping ability. Exercise can help improve bone density in adolescents. Evidence level II; Therapeutic Studies - Investigating the results.
INFLUENCE OF PHYSICAL TRAINING ON THE PHYSICAL FITNESS OF YOUNG THROWING ATHLETES
Authors: Yin Zeyu
Published: May 2022

ABSTRACT Introduction The improvement of physical training is a prerequisite to achieving excellent athletic performance in throwing. Following these requirements, it is also necessary to improve the scientificity, effectiveness, and flexibility of the physical training of adolescent athletes. Objective To study the influence of physical training on the physical fitness of young throwing athletes. Methods This article uses mathematical statistics to study the physical fitness of young throwing athletes. We divided the young volunteers included in the experimental study into training and control groups. A comparative analysis of their physical fitness indicators before and after sports practice. Results After physical training, the physical fitness indicators of adolescents showed a more significant impact. The athletics competitions of the young athletes’ results also improved significantly (P<0.05). Conclusion The throwing sport can improve the physical fitness of young athletes. In adolescence, the intervention of physical training can be increased to improve indicators of physical fitness in young practitioners. Evidence level II; Therapeutic Studies - Investigating the results.
ISOKINETIC MUSCLE STRENGTH TESTING AND TECHNOLOGY OF TRAINING IN SPORTS MEDICINE
Authors: Li Zongzhen
Published: May 2022

ABSTRACT Introduction Current research in sports medicine on muscles adjacent to joints in patients with joint instability focuses on functional instability. However, few studies on muscle strength in the muscles adjacent to the joints in typical patients. Objective This study tests the changes in isokinetic muscle strength in flexion-extension muscle groups in common subjects’ knees and elbows. Methods Randomly selected ordinary citizens to perform isokinetic muscle strength testing with grip strength, explosive pedaling force, and elbow and knee joint movement speeds of 60°/s. Results The single work of the normal knee flexors and extensors decreases with test speed at different movement speeds. Conclusion The grip strength test and isokinetic pedaling test can be used as simple muscle strength tests for fitness monitoring. Evidence Level II; Therapeutic Studies - Investigating the result.
CARDIOVASCULAR MONITORING IN THE TRAINING OF LONG-DISTANCE RUNNERS
Authors: Wang Huaiming , Jin Zongqiang
Published: May 2022

ABSTRACT Introduction Strengthening research on cardiac function risk assessment in running sports is beneficial to prevent sport-related cardiovascular injuries and sudden deaths in sports. Objective To study changes in cardiovascular response in athletes after long-distance running. Methods Changes in cardiovascular response indicators of long-distance runners before and after the five-kilometer race were monitored. Analyzed indices included heart rate, blood pressure, hemoglobin, and a cardiac function index. Results There were no statistically significant differences in heart rate, blood pressure, and hemoglobin levels before and after the long-distance run (P>0.05). There was no significant difference in the proportion of sinus arrhythmia before and after long-distance running (P>0.05). Conclusion Long-distance running did not cause abnormal changes in blood indicators. No cardiovascular discomfort or changes in the electrocardiogram, heart rate, blood pressure, hemoglobin, and cardiac function index were reported. These young men were not enlisted, despite undergoing adaptive training. In conclusion, the five-kilometer run is safe for young men in the reserve. Evidence Level II; Therapeutic Studies - Investigating the result.
PHYSIOLOGICAL AND BIOCHEMICAL CHANGES IN ADOLESCENTS AFTER HIGH-INTENSITY TRAINING
Authors: Feng Haili , Liu Weiguo
Published: May 2022

ABSTRACT Introduction Exercise intensity can approach an individual’s maximum capacity rapidly. High-intensity exercise can improve aerobic capacity in obesity, overweight, heart disease, and diabetes. Knowledge of the physiological and biochemical changes in the post-workout period could provide safety indexes for a scientific basis. Objective To evaluate the immediate physiological and biochemical changes in adolescents submitted to high-intensity sports training. Methods The article selects several young athletes for research. They were randomly divided into two groups. Group A did high-intensity exercise, and group B did regular exercise. A statistical analysis of physiological and biochemical indicators of athletes before and after exercise is done. Results The vital capacity in the two groups was significantly different. However, no significant differences were found between the biochemical indicators collected before and after training. Conclusion High-intensity sport can improve cardiopulmonary function with low impact on biochemical indicators. These findings indicate high-intensity physical training can improve sports performance without compromising the health of adolescents. Evidence Level II; Therapeutic Studies - Outcome Research.
EXERCISE FATIGUE INJURY UNDER SPORT RESISTANCE
Authors: Ping Na , Yang Juan
Published: May 2022

ABSTRACT Introduction Athletes are prone to local muscle fatigue due to high-intensity training and to long-term accumulation of musculoskeletal injuries. Musculoskeletal complications represent a large proportion of occupational health problems and, for this reason, have received increased attention from the sports industry. In this sense, studies on muscle fatigue should be intensified. Objective Verify muscle fatigue and injury involving the strain characteristics of lower limb joints in the eccentric and centripetal contraction of the jump. Methods A total of 691 individuals aged 20 to 40 years were selected. Fatigue was caused by active muscle contraction. The characteristic curves of active muscle contraction in different isometric, isotonic, and isokinetic training were analyzed. The degree of fatigue caused by three different sports states was tested by experimentation. The corresponding active muscle contraction characteristics were also analyzed. The potential for homeostasis at different ages was compared. Results The delay in recovery to fatigue is directly proportional to the athlete’s age. The return to post-exercise relief proportion from fatigue gradually decreases. Conclusion The experimental results showed that active muscle contraction could reduce exercise fatigue to some extent. This beneficial biochemical property of active muscle contraction is not found in people with advanced age. The findings have a guiding potential for the relief of sports fatigue. Evidence Level II; Therapeutic Studies - Investigating the result.
CORE MUSCLE STRENGTH TRAINING OF YOUNG SOCCER PLAYERS
Authors: Zhou Guoxia , Zhou Ming , He Chaohu
Published: May 2022

ABSTRACT Introduction Core strength training is a modern method of approach that matches the current demand for a more resilient physique on young players. Although it was initially conceived as complementary training to contribute to strength and agility, other benefits have been observed for soccer athletes nowadays. Among the under-explored benefits is the effect on the athletes’ stability. Objective This article explores core training results on stability in young soccer players. Methods The theoretical applicability of basic stability training for young soccer players with core muscle strength training is discussed using mathematical statistics. The theoretical result is confronted with the practice of the controlled experiment on 18 young soccer players in 32 weeks with stabilization protocols. Results The fitness and soccer skills of the young men improved significantly (P<0.05). Conclusion Core strength training can promote the overall fitness of young soccer players. This training protocol for core strengthening achieves the primary goal of improving athletes’ competitive ability and fitness. Evidence Level II; Therapeutic Studies – Investigating the results.
TAXAS DE MORTALIDADE DE 2005 A 2021 DOS IDOSOS DE BAIXA RENDA BENEFICIÁRIOS DO BPC-IDOSO: Comparação das taxas anuais de mortalidade nos dois primeiros anos da pandemia de COVID-19 em relação às taxas dos anos anteriores
Authors: Custódio Marta Battaglia , Freitas Raquel Maria Soares
Published: May 2022

A partir dos registros administrativos do Benefício de Prestação Continuada (BPC) investiga-se a hipótese de que houve um crescimento da mortalidade entre os beneficiários do BPC-Idoso em 2020 e 2021, devido à pandemia da COVID-19. Metodologicamente, utilizou-se de linguagem SQL para extração dos dados da base “Mantidos” e cálculo das taxas brutas de mortalidade de 2005 a 2021, por sexo e idade (de 65 a 85 anos). Os resultados confirmam que houve um aumento da taxa de óbitos de 18,76%, em 2020, e de 21,64%, em 2021, quando comparadas com a média das taxas de mortalidade ocorridas entre 2005 e 2019. Destaca-se a relevância de se analisar registros históricos do BPC, trazendo à tona dados inéditos desse programa.
Capital social e desenvolvimento territorial na Serra do Brigadeiro, Minas Gerais, Brasil
Authors: Alves Junior Almiro , Ferreira de Freitas Alair , Ferreira de Freitas Alan
Published: May 2022

Este trabalho objetivou compreender como a dinâmica de interação entre atores locais pode condicionar o formato de implementação de políticas públicas, especificamente do Programa Nacional de Desenvolvimento Territorial Rural – PRONAT. Para isso procurou-se verificar que elementos interferem nas opções dos atores locais em relação ao seu engajamento na rede de organizações que operacionaliza o programa e utilizou-se de um estudo de caso no Território Serra do Brigadeiro, Minas Gerais-Brasil, e de dados qualitativos adquiridos por meio de entrevistas. Constatou-se que o engajamento das organizações locais é dependente de seu perfil e de sua história organizativa. As organizações sindicais que vivenciaram o trabalho de organização comunitária da Igreja Católica conseguiram expandir suas redes e ampliar seu foco de atuação, incorporando frentes de trabalho além da questão previdenciária, dando também prioridade ao acesso a inúmeras políticas públicas. Conclusivamente observa-se que a territorialização do espaço e das políticas públicas depende dos arranjos organizacionais e das instituições prevalecentes, da maneira com que os atores interagem entre si e reproduzem as relações de poder.
Aproximaciones conceptuales a la economía solidaria: curso institucional II
Authors: Gamba Barrera Horacio , Rúa Castañeda Sohely , Duran Charris Luis Jorge , Rodríguez Luz Máyele , Ramírez Tovar Luis Eduardo , Pava Gómez Elkin Manuel , Moncayo Muñoz Jesús Enrique
Published: May 2022

La presente nota de clase busca aportar algunas aproximaciones conceptuales para el curso Institucional II: Economía Solidaria, de la Universidad Cooperativa de Colombia, el cual se lleva a cabo en la modalidad virtual. Este curso hace parte del currículo de pregrado en el componente de competencias genéricas, en este caso, en lo relacionado con la denominación y el campo de estudio de la economía solidaria. Este material será de utilidad para que el estudiante reconozca un contexto teórico y algunos conceptos clave que le facilitarán el proceso de aprendizaje y, a la vez, que pueda identificar que se espera de él en el desarrollo de la competencia del curso. Esta nota de clase se integra a la estrategia de actualización periódica de cursos liderada por el departamento de Economía Solidaria.