bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative Numerical Study between /Steel Fiber Reinforced Concrete and SIFCON on Beam-Column Joint Behavior
Authors: Abdulghani Ali Wathiq , Jaafer Abdulkhaliq A.
Published: February 2021

This paper presents a nonlinear finite element analysis of RC beam-column joints. A numerical study carried out through a simulation on beam-column joints failed in flexure presented by experimental study. A verification procedure was performed on two joints by finite element analysis with ANSYS APDL. The verification with the experimental work revealed a good agreement through the load-displacement relationship, ultimate load, and displacement, and crack pattern. Also, the parametric study was implemented which including strengthening the concrete members by a variable ratio of steel fibers with normal ratios (0.5%, 1%, 1.5%, and 2%) and ratios of slurry infiltrated fiber concrete SIFCON (steel fibers up to 4%, 6%, and 8%) in addition to using of partial and full strengthening with and without stirrups. The test results revealed that steel fibers enhanced the flexural strength and ductility of the tested joint. Increase the ratio of steel fibers increased the flexural capacity by (101%, 153%, 177%, and 193%) for the four normal ratios of steel fibers respectively. SIFCON concrete ratios (4%, 6%m and 8%) enhanced ultimate strength by (521%, 802%, and 906%) respectively. The use of steel fibers reinforcement instead of steel rebar enhanced the ultimate load capacity by (101%) with large displacement. Full strengthening method by use of SIFCON presented pure flexural failure with cracks spread in the joint region but use the SIFCON concrete as a partial strengthening changed the failure mode to the shear failure.
Density and Mechanical Properties of Selective Silicon Materials to Produce 3D Printed Paediatric Brain Model
Authors: Khalid Ghaidaa A.
Published: February 2021

This study presents a step towards exploring the possibility of using silicon materials as a surrogate to produce a multi-material 3D printed soft silicone brain model to be used in the investigation of Traumatic Brain Injury (TBI) in paediatric populations. Silicone represents a popular choice of material due to its viscoelastic properties, 3D printability, and capability to be tuned to possess different properties. Dynamic oscillatory shear tests were carried out for seven types of silicon materials at three different speeds against a different range of frequencies. The mechanical parameters response has been ranked on, which is the most appropriate to try. It also agrees with the range of reported paediatric brain tissue imitating grey and white matter as a surrogate brain material. Utilising of silicone for 3D printing represents a new approach to fabricate surrogate models that closely mimic biofidelic features and advance the medical engineering discipline.
Improvement of Microstructure and Wear resistance of X12 Tool Steel by Using Laser Surface Re-Melting Technique
Authors: Al-Tamimi Haneen M. , Al-Roubaiy Ahmed O. , Dawood Nawal Mohammed
Published: February 2021

Nd-YAG lasers have been successfully used in recent years as reliable heat source to surface modification of engineering materials such as laser surface re-melting. In the present study, X12 tool steel was surface modified by using pulse Nd-YAG laser technique. Laser parameters are selected of 12 J pulse energy, 15 Hz frequency, 20 mm defocus length, 6 ms pulse duration, and 5.6 mm /s mm scanning speed. These parameters were chosen after undertaking trials to give suitable parameters in this process. Optical microscopy and backscattered scanning electron microscopy (SEM) with EDS and X-ray diffraction techniques were used to analyse the microstructure changes of the surface of tool steel. Wear resistance test was achieved by using a pin on disk method. The reason for this work is to improve the wear resistance for surface layer of tool steel after changes the morphology of the structure by rapid solidification during laser re-melting. In general, the structure consists of the dendrite and cellular structures with δ ferrite formed under conditions of rapid solidification without the primary coarse carbides. After laser melting, the results of the structure at the surface layers show an increase in wear resistance.
Fabrication and Characterization of CdO Gas Sensor with Tube Shape
Authors: Othman Farhad M. , Hamead Alaa A. Abul , Wahid M. H. A.
Published: February 2021

The based semiconductor-metal oxide gas 3D-detector of cadmium oxide has been fabricated from cadmium chloride salt upon a glass substrate via the technique of spray pyrolysis with a thickness around (0.5 ± 0.01 μm) utilizing precursors in form of water soluble at a flat glass substrate and a tube hollow design. Three different dimensions were used at temperature 450oC±5, in 0.1 and 0.2 M concentration, and their gas sensing characteristics toward the (CO) and (NO) gases at various concentrations (50, 100, and 500 ppmv) in the air were studied at the room temperature which are related to oil industry. Different inspection distances (0, 1 and 5 m) were carried out. Furthermore, structural and morphology properties were inspected via X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). The results manifested that the composition of the formative oxide CdO is related to the tested oxidation gases sensitivity. And, the installation of hollow design is best from flat to capture the gas molecules.
Interaction between Free-Surface Oscillation and Bubble Translation in a Megasonic Cleaning Bath
Authors: Katano Yu , Ando Keita
Published: February 2021

Visualization experiments were performed to study the relation between free-surface motion and bubble translation in a 1-MHz ultrasonic cleaning bath. From the visualization with a video camera, the characteristic frequencies of the free-surface oscillation (under the acoustic radiation force) and the translational velocity of cavitation bubbles (trapped via the primary Bjerknes force) were extracted, showing that there is a strong correlation between the free-surface oscillation and bubble translation. From the context of megasonic cleaning, such free-surface oscillation is expected to contribute to uniform cleaning performance with cavitation bubbles.
Ultrafine Particle Removal in the Wafer Cleaning Process Using an Aqueous Solution with a High Concentration of Dissolved O3 and HF
Authors: Han Hyeon Joon , Lee Hunhee , Kim Charles , Kim Yongmok , Moon Jinok , Ahn Dukmin , Hong Seokjun , Kim Taesung
Published: February 2021

Sulfuric Peroxide Mixture (SPM, H2SO4 + H2O2) has been widely used in semiconductor manufacturing processes due to its high reactivity and attractive price. However, SPM releases SO42- ions that can be high impact on the environmental contaminations. Therefore, the SPM process requires a high cost wastewater treatment. So, the development of alternative chemicals has been becoming an important task in the semiconductor manufacturing process. In this paper, we evaluated the feasibility of replacing SPM with dissolved ozone water (DIO3) in the wafer cleaning process, and confirmed that the Particle removal efficiency (PRE) was improved around 68% by mixing with diluted hydrofluoric acid (DHF). And, the PRE was also increased when the concentration of ozone in dissolved ozone water increased. Additionally the PRE was improved up to 98% by combining physical cleaning after O3 process.
Copper Catalysis Effect Investigation for TiW Etch Process on Patterned Wafers
Authors: Venegoni Ivan , Votta Annamaria , Bellandi Enrico , Pipia Francesco , Alessandri Mauro
Published: February 2021

The use of various H2O2 based chemistries for TiW etch was studied on single wafer and wet bench tools. The focus of the investigation was put on the different behaviors of these chemicals on blanket and patterned wafers. The results of the etch rate tests showed much higher values on the wafers where copper was exposed, leading to the hypothesis that the etch rate on TiW should be driven by the catalysis effect of the transition metal on the H2O2 decomposition reaction. Additional optical inspections, ToF SIMS, SEM and TEM analyses were carried out to confirm this hypothesis and find the best conditions in terms of morphology for RDL applications. Finally, the collected data were also used to evaluate the process cycle time and cost of ownership.
Experimental Wafer Carrier Contamination Analysis and Monitoring in Fully Automated 300 mm Power Production Lines
Authors: Zängle Clara , Pfeffer Markus , Franze Peter , Schneider Germar , Bauer Anton
Published: February 2021

Contamination control is essential in semiconductor manufacturing to ensure high yield and product quality. Latest power electronic devices are manufactured in fully automated 300 mm production lines, which utilize closed wafer containers called Front Opening Unified Pods (FOUPs). It has been observed, that FOUPs capture airborne molecular contaminants (AMC) outgassing from processed wafers or being transferred from the equipment minienvironment. These AMC might be released afterwards and can lead to defects causing yield and/or reliability issues of the power devices. Specific FOUP cleaning and exchange rules are already being utilized in the fab. But so far, these rules are not validated or adapted by actual concentration values in the FOUPs. In this paper, contamination levels in FOUPs are investigated to identify the sources of different AMC. The contamination data is analysed together with FOUP logistics data in order to establish an optimized FOUP management strategy. In the first part, in-line carrier contamination control is explained and a general overview of the AMC detected is given. In the second part, the data-driven FOUP-monitoring is described using the example of the root cause analysis of hydrofluoric acid (HF) contamination.
Wet Chemical Cleaning of Organosilane Monolayers
Authors: Hinckley Adam P. , Muscat Anthony J.
Published: February 2021

Thin organic self-assembled monolayer films are used to promote adhesion and seal the pores of metal oxides as well as direct the deposition of layers on patterned surfaces. Defects occur as the self-assembled monolayer forms, and the number and type of defects depend on surface preparation, deposition solvent, temperature, time and other parameters. Particles commonly deposit during organosilane self-assembly on metal oxide surfaces. The particles are defects because they are prone to react in subsequent processing, which may not be desirable if the organosilane serves as a pore sealant or passivation layer. Cleaning the organosilane by solvent extraction to remove non-polar agglomerates followed by an aqueous mixture of ammonium hydroxide and hydrogen peroxide, which is Standard Clean 1, a common particle removal step for silicon surfaces, produced monolayers with few agglomerates based on atomic force microscopy without etching the layer. The combined cleaning sequence contained fewer particles than separate cleaning steps, showing that the cleans removed particles with different compositions. The thickness and contact angle of cleaned monolayers was comparable to those made using a costlier solvent.
The Impact of Fiscal and Monetary Policy Changes on Investors' Investment Performance: Empirical Evidence from Investors in the Colombo Stock Exchange in Sri Lanka
Authors: Menike L. M. C. S.
Published: February 2021

The eﬀect of ﬁscal and monetary policy is transmitted in several ways by investor choice and the performance of investments. This study investigates how individual investors perceive government ﬁscal and monetary policy decisions and how they respond to such policy changes to make proﬁtable investments. The data were gathered from a diversiﬁed group of 364 individual investors in the Colombo Stock Exchange (CSE) by administering a structured questionnaire focusing on their opinions of ﬁscal and monetary policy changes. Factor analysis was carried out to identify the meaningful ﬁscal and monetary policy actions that determine individual investment decisions and performance. The results of multiple regression analysis show that the government’s choice of tax instruments has a signiﬁcant inﬂuence on stock returns and all taxes jointly depress investor investment performance. Government expenditure as a ﬁscal policy variable has a positive impact on investor returns, implying that a continual increase in government expenditure will result in the enhancement of ﬁrm proﬁts and returns to investors by allowing stock prices to go up. Thus, market participants might assume that expansionary ﬁscal policy signals an increase in future returns. Further, a decline in interest rates and an increase in money circulation under monetary policy impacts positively on investors’ investment performance. As expected, an increase in money circulation in the economy will persuade investors to invest more in stocks as extra funds are available. These results have important implications for both investors and stock market analysts in their eﬀort to understand the impact of ﬁscal and monetary policies on the stock return expectations of individual investors, but they should consider both ﬁscal and monetary policy decisions and their interactions together rather than in isolation.
Nitrogen Uptake, Utilisation and Use Eciency of Dierent Wheat Species
Authors: Fernando K. M. C. , Sparkes D. L.
Published: February 2021

Breeding wheat (Triticum aestivum L.) for high nitrogen use eﬃciency while maintaining adequate yield, is widely accepted as one of the approaches to maximise farmers’ revenue and minimise pollution risk. However, due to random hybridization events during evaluation and selective breeding for high yield, genetic diversity of existing bread wheat is narrowed down. The present study was conducted to investigate the nitrogen use eﬃciency and its components of ancient wheat species, a potential source to expand the genetic diversity of bread wheat. Three ﬁeld experiments were carried out in 2012, 2013 and 2014 at Sutton Bonington Campus, University of Nottingham, UK. Ten genotypes belonging to einkorn, emmer, spelt and modern bread wheat were used as genetic materials of the experiments and three nitrogen levels were compared. Nitrogen uptake eﬃciency, nitrogen utilisation eﬃciency and nitrogen use eﬃciency were calculated at harvest. Nitrogen use eﬃciency among genotypes varied signiﬁcantly and bread wheat recorded the highest value followed by spelt, emmer and einkorn. However, in general, nitrogen uptake eﬃciency was high in emmer and spelt compared to bread wheat. Nitrogen utilisation eﬃciency of bread wheat was always higher than ancient wheat genotypes resulting in high nitrogen use eﬃciency. Nitrogen supply has a negative relationship with nitrogen uptake eﬃciency. According to the results, it can be concluded that ancient wheat genotypes uptake more nitrogen hence high nitrogen uptake eﬃciency when compared to modern bread wheat. However, the ability to utilise nitrogen in the plants to develop grains is high in modern bread wheat.
Spatial Arrangements on Growth and Yield of Cowpea (Vigna unguiculata L. Walp.) in Intercropping
Authors: Maduwanthi A. K. M. R. B. , Karunarathna B.
Published: February 2021

This experiment was conducted at the Crop Farm of Eastern University, Sri Lanka to evaluate the eﬀect of diﬀerent spatial arrangements on growth and yield of cowpea (Vigna unguiculata L. Walp) under okra (Abelmoschus esculentus L.) cowpea intercropping in sandy regosol. The experiment was laid out in a Randomized Complete Block Design (RCBD) having monocropping and diﬀerent intercropping patterns. The results revealed that there was a signiﬁcant diﬀerence (P<0.05) among treatments for plant height, root length, leaf area, leaf area index, pod length, number of total and eﬀective nodules per plant, dry weight of eﬀective nodules and total pod yield of cowpea. However, seeds per pod was not signiﬁcantly diﬀerent (P>0.05) with diﬀerent plating patterns. The study concluded that 60 cm between two rows with 150 cm between two pairs of rows of okra with three rows of cowpea in between paired rows would be the most suitable planting system to get maximum growth and yield of cowpea.
Students’ Performance in Microeconomics: Evidence from Vavuniya Campus, Sri Lanka
Authors: Thayaparan A. , Gunathilaka G. Y. N.
Published: February 2021

This study examined the factors aﬀecting the performance of undergraduate students in microeconomics at Vavuniya campus, Sri Lanka. For this purpose, a survey is conducted to collect the data using a sample of 85 students, who enrolled in microeconomics during their ﬁrst year ﬁrst semester in the academic year 2015/2016. The data on students’ performance in microeconomics measured in terms of their grades they obtained for the subject, demographic characters with family background and educational factors gathered from the questionnaire. The collected data was analyzed using frequency, chi- square test, ordered probit regression and marginal eﬀects in the study. Frequency of the students’ grades revealed that, nearly 59% of them got grade B while 9.4% of them received grade A and 4.7%of the students received grade D. Chi - square test found that family stress and frequency of the study habits signiﬁcantly associates with the students’ grades in the subject while the grade obtained in general English in G.C.E (A/L) and the usage of library facilities were less associated in the study. Results of ordinal probit model suggested that among the variables related to demographic characteristics with family background, gender and family stress are the good predictors of student performance in microeconomics whereas among educational factors allocation of time, economics as a subject taken by the students in G.C.E (A/L), mathematics knowledge and the usage of library facilities are the other best predictors in students’ performance in the subject.
Oral Rehydration Salts Therapy Use among Children under Five Years of Age with Diarrhea in Ethiopia
Authors: Ebrahim Nasser B. , Atteraya Madhu S.
Published: February 2021

Background

Oral rehydration salts (ORS) therapy for diarrheal diseases is considered an effective therapy that can be applied in many resource-poor settings. Nevertheless, it has been consistently underutilized, and as a result, its potential to reduce child mortality has not been fully exploited. In Ethiopia, the use of ORS therapy for children under five has been inadequate. Like any other health behavior, the provision of ORS therapy to children during diarrheal episodes by caregivers is complex and context dependent. Identifying the factors may help promote wider application.

Design and methods

We used data from the 2016 Ethiopia Demographic and Health Survey (EDHS-2016). Samples were selected by a two-stage stratified cluster sampling method. We used data on children under five years of age whose mothers (aged 15-49 years) reported that the child had had diarrhea within two weeks before the survey was conducted (n=1221). The dependent variable was whether these children received ORS therapy. The contextual independent factors were socio-demographic variables (mothers’ age, child's age, child's sex, child's place of residence, household wealth, and mother/ husband/partner's education levels and work status), as well as media exposure and healthcare utilization.

Results

The prevalence of ORS therapy use among the children was 30%. Mothers who had made at least four prenatal visits during their last pregnancy were 87% more likely to use ORS therapy for their children than those who had fewer prenatal visits (OR=1.874; CI: 1.140-3.082; p=0.013).

Conclusions

Integrating efforts for scaling-up ORS use with prenatal health care services may have an extra benefit of promoting children's wellbeing and survival.
Managing Non-COVID Acute Neurology Amidst the Pandemic
Authors: Gupta Anu , Vishnu Venugopalan Y. , Singh Mamta B. , Bhatia Rohit , Rajan Roopa , Vibha Deepti , Elavarasi Arunmozhimaran , Radhakrishnan Divya , Agarwal Ayush , Ramanujam Bhargavi , Das Animesh , Singh Rajesh K. , Pandit Awadh K. , Srivastava Achal , Tripathi Manjari , Prasad Kameshwar , Srivastava M.V. Padma
Published: February 2021

The ongoing COVID-19 pandemic has precipitated a global health crisis. Non-COVID diseases across specialties have been significantly compromised. The greatest challenge has been to continue providing care to non-COVID cases with minimum transmission risk to health care workers, patients, and caregivers. In this specter, better described as a medical holocaust, we present our experiences of dealing with acute neurological patients who could access our facility. We attempted to work on three key areas – initial screening using a more inclusive, dynamic checklist for COVID suspicion over and above the emergency triage, a mandatory initial holding on a separate floor of our inpatient service equipped with infection control strategies similar to a COVID-designated area, and daily screening of health care workers and caregivers for symptoms and possible exposures. It was a steep learning curve, a couple of close shaves, and many more lessons that went into the development of an algorithm that seems to be working well.
3D digital image microscope system-assisted vasovasostomy and vasoepididymostomy in rats
Authors: Li Peng , Liu Na-Chuan , Zhi Er-Lei , Yao Chen-Cheng , Zhao Zhi-Liang , Yu Zhi-Yong , Li Qi-Meng , Huang Yu-Hua , Ju Jie-Chang , Huang Wen-Bin , Rozi Husanjan , Ji Zhi-Yong , Guo San-Wei , Tian Ru-Hui , Li Zheng
Published: February 2021

Optimal vision and ergonomics are essential factors contributing to the achievement of good results during microsurgery. The three-dimensional (3D) digital image microscope system with a better 3D depth of field can release strain on the surgeon's neck and back, which can improve outcomes in microsurgery. We report a randomized prospective study of vasoepididymostomy and vasovasostomy using a 3D digital image microscope system (3D-DIM) in rats. A total of 16 adult male rats were randomly divided into two groups of 8 each: the standard operating microscope (SOM) group and the 3D-DIM group. The outcomes measured included the operative time, real-time postoperative mechanical patency, and anastomosis leakage. Furthermore, a user-friendly microscope score was designed to evaluate the ergonomic design and equipment characteristics of the microscope. There were no differences in operative time between the two groups. The real-time postoperative mechanical patency rates were 100.0% for both groups. The percentage of vasoepididymostomy anastomosis leakage was 16.7% in the SOM group and 25.0% in the 3D-DIM group; however, no vasovasostomy anastomosis leakage was found in either group. In terms of the ergonomic design, the 3D-DIM group obtained better scores based on the surgeon's feelings; in terms of the equipment characteristics, the 3D-DIM group had lower scores for clarity and higher scores for flexibility and adaptivity. Based on our randomized prospective study in a rat model, we believe that the 3D-DIM can improve surgeon comfort without compromising outcomes in male infertility reconstructive microsurgery, so the 3D-DIM might be widely used in the future.
New Perspectives and Computational Challenges in High Dimensions
Authors: Hinrichs Aicke , Prochno Joscha , Thäle Christoph , Werner Elisabeth
Published: February 2021

High-dimensional systems are frequent in mathematics and applied sciences, and the understanding of high-dimensional phenomena has become increasingly important. The mathematical subdisciplines most strongly related to such phenomena are functional analysis, convex geometry, and probability theory. In fact, a new area emerged, called asymptotic geometric analysis, which is at the very core of these disciplines and bears a number of deep connections to mathematical physics, numerical analysis, and theoretical computer science. The last two decades have seen a tremendous growth in this area. Far reaching results were obtained and various powerful techniques have been developed, which rather often have a probabilistic flavor. The purpose of this workshop was to explored these new perspectives, to reach out to other areas concerned with high-dimensional problems, and to bring together researchers having different angles on high-dimensional phenomena.
Fizik Öğretiminde Manyetik Alan ile İlgili Çalışmaların İncelenmesi: Physics Education Örneği
Authors: Ürek Handan
Published: February 2021

Bu çalışmada, Physics Education isimli dergide, öğrencilerin fizik dersi kapsamında anlamada zorluk yaşadıkları kavramlardan birisi olan manyetik alan kavramını içeren ve 17.10.2019 tarihi itibariyle son bir yılda yayımlanmış olan çalışmaların incelenmesi hedeflenmiştir. Çalışmaya, bahsedilen derginin veri tabanında yapılan tarama sonucunda ulaşılan 33 makale dahil edilmiştir. Çalışmada, bu dergiye yer verilmesinin başlıca sebepleri; derginin uzun yıllardır farklı yaş gruplarının fizik eğitimine yönelik yayın yapması, uluslararası alan eğitimi indekslerinde taranması ve uygulamaya dayanan çalışmalara önem vermesidir. Çalışma, nitel yöntemler çerçevesinde yürütülmüş olup doküman analizi şeklinde gerçekleştirilmiştir. Yapılan analizler sonucunda incelenen makalelerin çoğunun manyetik alan kavramı ile ilgili deneysel uygulamaları ortaya koyduğu tespit edilmiştir. Bu deneylerin, Faraday Yasası, Lenz Yasası, manyetik kuvvet gibi manyetik alan ile doğrudan ilişkili konuların öğretimine yönelik olduğu gibi bazı çalışmaların ise manyetik alan kavramından yararlanarak Newton’un 3. Hareket Yasası, kinematik gibi farklı fizik konularının öğretimini hedeflediği belirlenmiştir. Ayrıca, deney düzeneklerinde akıllı telefon, Arduino gibi çeşitli son teknoloji ürünü araç-gereç ve uygulamalardan yararlanıldığı görülmüştür. Bu çalışmanın gerek güncel uygulamaları sunması gerekse manyetik alan kavramını başka konularla ilişkilendiren çalışmaları derlemesi açısından alan eğitimine katkılarda bulunması beklenmektedir.
PRÁTICA DO BRAZILIAN JIU JITSU E O DESENVOLVIMENTO DAS FUNÇÕES EXECUTIVAS: UMA REVISÃO SISTEMÁTICA DA LITERATURA
Authors: CARMARGO João Pedro , PRAXEDES Jomilto
Published: February 2021

O Brazilian Jiu-Jitsu (BJJ) é uma arte marcial de defesa pessoal que engloba todo o sistemático e complexo corpo humano. Amplamente praticado no Brasil e no mundo, o Jiu-Jitsu apresenta características motoras relacionadas ao desenvolvimento das funções executivas das crianças (FEs). No entanto, ainda não se sabe o processo pelo qual essas contribuições ocorrem e se elas ocorrem. Assim, este artigo tem como objetivo identificar e entender a possível participação da prática do BJJ no processo de desenvolvimento da FE infantil. Este estudo foi realizado através de uma revisão de literatura, buscando artigos de revisão completos indexados nas bases de dados PubMed e ScieElo, publicados de 2011 a 2019. Após a seleção e análise dos cinco artigos (duas revisões de literatura e três metanálises), foi identificado que a prática de exercícios contribui para o desenvolvimento da FE, incluindo controle inibitório, memória de trabalho e flexibilidade cognitiva. De fato, artigos científicos relacionados à prática de BJJ e ao desenvolvimento de FEs são escassos. No entanto, existe uma tendência definida em relação à participação de crianças em programas esportivos com características semelhantes ao BJJ, resultando na melhora da FE. Estudos adicionais são sugeridos para identificar o efeito agudo e crônico da prática do BJJ nas FEs de crianças.

Palavras-chave: Função Executiva, Jiu Jitsu, Cognição, Artes Marciais, Esportes.
NOVOS OLHARES A RESPEITO DO PROCESSO DE ENSINO APRENDIZAGEM NA NATAÇÃO: REVISÃO SISTEMÁTICA
Authors: NUNES Leonardo Geamonond , FRANCO Raquel
Published: February 2021

O objetivo do estudo foi realizar uma revisão sistemática sobre o processo de ensino aprendizagem em natação e consequentemente responder a seguinte pergunta: A pedagogia da natação apresenta conteúdo empírico relevante? Metódos: Foram analisados e lidos na integra artigos publicados entre os anos de 2010 a 2019 nos idiomas português e inglês, nas seguintes bases de dados: SCIELO e ERIC. Resultados: Antes da iniciação aos quatro nados culturalmente determinados os aprendizes deverão dominar fundamentos básicos do nadar e de outros nados alternativos. Os aprendizes deverão apresentar controle do próprio corpo em meio aquático e domínio em manipulação de objetos durante a propulsão, para que consigam ter êxito em técnicas especializadas. Conclusão: Esta revisão sistemática tem como propósito abordar princípios e fundamentos para que o professor que se dedica a iniciação em esportes aquáticos possa desconstruir sua programação de ensino voltada apenas aos quatro nados culturalmente determinados. Devemos apresentar outros caminhos pedagógicos que devem ser trilhados favorecendo o reconhecimento e a interpretação das demandas da tarefa pelo aprendiz, desta forma os novatos apresentarão controle do próprio corpo e do ambiente que estiverem inseridos de forma satisfatória.
ASSOCIAÇÃO ENTRE LETRAMENTO EM SAÚDE E A PRÁTICA DE ATIVIDADES FÍSICAS REGULARES ENTRE IDOSOS: UMA REVISÃO INTEGRATIVA
Authors: NUNES Leonardo Geamonond
Published: February 2021

O objetivo do estudo foi realizar uma revisão sistemática sobre o efeito da prática de exercícios físicos em ambiente aquático sobre a saúde mental de idosos, e responder a seguinte pergunta: O exercício físico em ambiente aquático proporciona benefícios sobre a saúde mental de idosos? Foram analisados e lidos na integra artigos publicados entre os anos de 2015 a 2020 nos idiomas português e inglês, nas seguintes bases de dados: SCIELO, LILACS eGOOGLE SCHOLAR. Os estudos relataram que a prática sistemática de exercícios físicos em ambiente aquático proporcionou benefícios na qualidade do sono, aumento da motivação em promoção da saúde e melhorias sobre a saúde cerebral, aprimorando o desempenho cognitivo em idosos. A prática sistematizada de exercícios físicos é reconhecida por profissionais da área da saúde como ação não farmacológica, potencializando o desempenho cognitivo e prevenindo contra transtornos mentais comuns e possíveis demências. Porém cabe aos profissionais de Educação Física atribuir maior atenção aos fatores de risco e desenvolver estratégias que visem proporcionar maior funcionalidade e qualidade de vida para a população idosa respectivamente.
Palavras-chaves: Exercício Físico. Ambiente Aquático. Saúde Mental. Idosos
ANTONIO LUNARDI: O PRESIDENTE DA CONSTRUÇÃO DO GIGANTE DO HORTO
Authors: Souza Neto Georgino Jorge
Published: February 2021

Este trabalho tenciona ilustrar o papel exercido pelo presidente do clube Sete de Setembro, o vereador Antonio Lunardi, no planejamento e execução do projeto de construção do Estádio Independência, que se tornaria à época a mais importante praça esportiva do estado de Minas Gerais. Através de uma revisão periódica, buscamos referências da atuação de Lunardi, elucidando e comprovando o quão fundamental foi a sua participação como principal dirigente do clube setembrino. Fica evidente o jogo político, bem como a relação competente que Lunardi estabeleceu com os principais atores no processo, a saber: prefeitura municipal, CBD e FIFA. Ressaltamos como principal conclusão o fato de o Estádio Independência não ter sido construído para a Copa do Mundo de 1950, embora tenha se tornado moeda de troca para a efetivação do sediamento da capital mineira no mais importante evento esportivo mundial.
Palavras-Chave: Estádio; Política; Cidade.
Bias in Qualitative Research: Voices from an Online Classroom
Authors: Mehra Beloo
Published: February 2021

The issue of bias in qualitative research is an important one, and demands special attention and discussion in any qualitative research methods class. This reflective paper, written in the tradition of teacher-research, presents an analysis of how my students and I, working in an online classroom environment, learn together about the role researcher self and subjectivity play in designing and conducting qualitative research. While researcher bias and subjectivity are commonly understood as inevitable and important by most qualitative researchers, the beginners in qualitative research classes are generally not very comfortable with the idea of research that is not value-neutral. A systematic and reflective analysis of some of the teaching and learning activities, and of the online exchanges in these classes suggests that issues that require more critical thinking and reflection are dealt better using the power of written word. When students write down how their understanding of an issue is developing, the knowledge gained from the experience of putting the idea in comprehensible sentences is many times the knowledge gained when they make a verbal and often casual comment on the issue being discussed in the classroom. Since online instruction allows students to work at their own pace, factors such as differences in students' ability to communicate - through verbal or written expression, and their level of understanding of the content can be better addressed in an online classroom. The students' and instructor's voices in this paper, and the unique framework in which they are organized convey their increased understanding of qualitative research as a process of self-discovery.
Potensi Masalah Kesehatan Reproduksi Dan Penyimpangan Perilaku Pada Remaja (Potential Problem of Reproduction Health and Distortion of Behavior in Adolescents)
Authors: Ratnawati Eka , Purnamiasih Desak Putu Kristian
Published: February 2021

Early marriage is still common in Temanggung, lead to maternal and child health problem in the future. Several factors of early marriage are deviant behavior in sexuality and lack knowledge of reproductive health. This study aims to identify potential problems of reproductive health and behavioral distortion in adolescent. Study design is quantitative descriptive, data collection by means of survey through the google form application that is distributed to youth community groups in Temanggung, Central Java. There were 206 participants involved in this study. Data analysis uses descriptive statistics. Adolescents who expressed understanding of puberty are still very low (38,3%), reluctant to talk about puberty (18,9%), only 64,1% of them realize that is very important to maintain reproductive health, did  sex before marriage (2,4%). Friends are the favorite information saource about relationship (72,8%), and internet. Adolescents experience severe problems (82,5%) and often tell stories with firends, did exercise (20,4%), but there were who consume cigarettes, alcohol and drugs even though small percentage. Adolescents in Temanggung have potential for reproductive health, sex before marriage, and abuse of alcohol and drugs. Pernikahan usia dini masih banyak terjadi di Temanggung, yang dapat mengakibat masalah kesehatan ibu dan anak. Pernikah usia dini terjadi dengan beberapa faktornya adalah perilaku yang menyimpang dalam pergaulan dan pengetahuan kesehatan reproduksi yang rendah. Penelitian ini bertujuan untuk mengidentifikasi masalah potensia kesehatan reproduksi dan pemyimpangan perilaku pada remaja. Desain penelitian ini kuantitatif deskriptif, pengambilan data dengan cara survei melalui aplikasi google form yang disebarkan pada kelompok komunitas remaja di Temanggung Jawa Tengah. Partisipan yang terlibat dalam penelitian ini sejumlah 206 orang. Analisis data menggunakan statistik deskriptif. Remaja yang menyatakan paham terhadap pubertas masih sangat rendah (38,3%), masih ada remaja yang enggan bercerita tentang pubertasnya (18,9%), baru 64,1% remaja menyadari bahwa sangat penting untuk menjaga kesehatan reproduksi, terdapat tindakan seks di luar nikah (2,4%).Teman merupakan sumber informasi favorit terkait pergaulan (72,8%) dan setelah itu adalah internet. Remaja mengalami masalah berat (82,5%) dan banyak bercerita dengan teman, mencari hiburan dengan berolah raga (20,4%), namun ada yang mengkonsumsi rokok, minuman keras dan narkoba walau prosentasenya kecil. Remaja di Temanggung memiliki potensi terhadap terjadinya masalah kesehatan reproduksi dan penyimpangan perilaku seks di luar nikah dan penyalahgunaan minuman keras dan narkoba.
Colisão entre direitos à privacidade e à informação e expressão: alguns parâmetros interpretativos para ponderação em matéria de direito ao esquecimento
Authors: Ferreira Taveira de Carvalho Oliveira Danilo
Published: February 2021

A pesquisa feita pelo presente trabalho buscou analisar o conflito dos direitos à privacidade/esquecimento e à informação, notadamente a partir do estudo dos direitos fundamentais e com intuito de sugerir possíveis parâmetros para resolução de seus conflitos.
THE 70th ANNIVERSARY OF PROCEEDINGS OF IBIW RAS AS AN OCCASION TO REMEMBER THE HISTORY OF THE ORGANIZATION OF ACADEMIC BIOLOGICAL SCIENCE IN BOROK
Authors: Filippov D.
Published: February 2021

In 2020, the journal “Proceed-ings of Papanin Institute for Biology of Inland Waters Rus-sian Academy of Sciences” celebrates its 70th anniversary. The article discusses the organization of an academic institution in 1938 in Borok to conduct biological research and the role of Aleksandr Petrovich Shennikov, corresponding member of the USSR Academy of Sciences, in this process.
Emancipação Humana: a centralidade das categorias trabalho e liberdade
Authors: Nicácio Natália Silva , Salazar Silvia Neves
Published: February 2021

Este artigo propõe um debate teórico e provocativo sobre a emancipação humana, a partir das categorias trabalho e liberdade, especialmente diante de um contexto das relações sociais capitalistas que, no ano de 2020, escancara a barbárie da vida humana. Objetiva sinalizar algumas aproximações do debate da teoria social crítica marxista, que contribua para pensarmos noutra forma de sociabilidade humana. Nestes termos, o texto traz como elemento central o significado da emancipação humana, a partir de aproximações das categorias: Trabalho e Liberdade, ambas apreendidas numa perspectiva ampliada, que supõe os desafios para a superação da sociabilidade fundada na dinâmica do capital.
Keluarga Sebagai Komunitas Utama Dalam Membentuk Kepribadian Anak
Authors: Manik Novida Dwici Yuanri
Published: February 2021

Abstract: Family is the most important thing for every human being, where the family became a major educational institution that given by God for every person in the world. The family plays a very important for the growth and changesof behavior in human life from childhood to adulthood. Therefore, we need a good family’s care so that people can have a good behavior too. Likewise, the Christian families. It is an important thing for Christian families to pay attention for parenting to their children, especially when they start to enter their teens. Adolescence is the period where a man has begun to want to show his identity, therefore parenting pattern can determine behavioral changes in young Christians. When, the parenting of Christian families well done, the result is the behavior of Christian teens will experience a positive growth and forming a good adolescent behavior that can be a blessing to everyone.

Abstrak: Keluarga adalah hal terpenting bagi setiap manusia, dimana keluarga menjadi institusi pendidikan utama yang diberikan oleh Tuhan untuk setiap orang di dunia. Keluarga memegang peranan yang sangat penting bagi pertumbuhan dan perubahan tingkah laku dalam kehidupan manusia dari masa kanak-kanak hingga dewasa. Oleh karena itu, diperlukan pengasuhan keluarga yang baik agar masyarakat dapat berperilaku baik pula. Begitu pula dengan keluarga Kristen. Penting bagi keluarga Kristen untuk memperhatikan pola asuh kepada anak-anak mereka, terutama ketika mereka mulai memasuki usia remaja. Masa remaja merupakan masa dimana seorang pria mulai ingin menunjukkan jati dirinya, oleh karena itu pola asuh dapat menentukan perubahan perilaku pada anak muda Kristen. Apabila pola asuh keluarga kristiani terlaksana dengan baik, hasilnya perilaku remaja kristen akan mengalami pertumbuhan yang positif dan membentuk tingkah laku remaja yang baik yang dapat menjadi berkat bagi semua orang.
Infiltration and extravasation of intravenous infusions in children-value of high-quality care on outcome
Authors: Huang Litao  , Ren Yuxuan  , Shu Yongxia
Published: February 2021

AbstractObjective: To study the value of high-quality care on the outcome of infiltration and extravasation of peripheral intravenous infusions in children. Methods: After ethical approval for this retrospective cohort study, we conducted secondary data analysis on data collected on children <3 years, hospitalized in the Third Affiliated Hospital of Zunyi Medical University between January 2013 and September 2019. The study population was divided into control and high-quality care groups. The outcomes were severity of infiltration and extravasation of intravenous infusions graded by INS (Infusion Nurses society score). Ordinal logistic regression was used to evaluate the independent relationship of high-quality care and infiltration and extravasation, as well as to identify risk factors associated with the outcome of infiltration and extravasation. Results: During the study period, 2147 and 14121 children were assigned to the control and high-quality care groups, respectively. The ordinal logistic regression analysis showed that, compared with the control group, the high-quality care group had a lower severity of infiltration and extravasation (odds ratio (OR): 0.75, 95% confidence interval (CI): 0.63-0.90). Additionally, the multivariable model also identified that the causes of infiltration and extravasation include agents with high osmolarity, poor condition of veins, guardianship negligence, and allergies to dressing materials.Conclusion: High-quality care was more effective in reducing the incidence and degree of infiltration and extravasation of peripheral intravenous infusions than the routine care given to the controls. Therefore, the high-quality care program is worth continuing.Keywords: Children; extravasation; infiltration; nurse; Continuous...
Assessment of lower urinary tract symptoms among calcium channel blocker-users and its impact on quality of life
Authors: Muhammad Salman  , Amer Hayat Khan  , Syed Azhar Syed Sulaiman  , Jeffery David Hughes  , Junaid Habib Khan  , Naureen Shehzadi  , Khalid Hussain
Published: February 2021

Objective: to investigate the prevalence and severity of lower urinary tract symptoms (LUTS) among calcium channel blocker (CCB) users and its impact on patients’ quality of life (QOL) Methods: This cross-sectional study was conducted among CCB-users, recruited using convenience sampling, at one hospital and 2 community pharmacies at Lahore, Pakistan during November 2017-July 2018. Urdu version of the International Prostate Symptom Score (IPSS) and EQ-5D-3L were used to assess LUTS and QOL, respectively. All data were entered and analyzed using SPSS version 22.Results: The median age of the study participants (N = 410) was 50.84, with majority of males. Around 26% of study participants were on CCB monotherapy whereas 73.7% were on CCB combinations with other antihypertensive agents. Overall prevalence of LUTS was 74.9%, with storage symptoms more common than voiding. The most common troublesome symptom was nocturia (89.5%) followed by increased daytime urinary frequency (87.1%). Median IPSS-QOL index, EQ-5D index and EQVAS score in our participants were 3, 0.621 and 60, respectively. Moreover, LUTS were significantly associated with reduced QOL (mean rank IPSS QOL-index: none-mild = 156.76 and moderate-severe = 221.85, p < 0.001; median EQ 5D index; none-mild = 0.796 and moderate-severe = 0.416; mean rank EQ-VAS: none-mild = 228.51, moderate-severe = 197.78, p = 0.022).Conclusion: Around 75% of CCB-users suffer from clinically significant LUTS which is associated with significant reduction in patient’s QOL. An earlier detection and management of LUTS by healthcare provider among CCB-users may and improve the overall QOL.
Continuous...
Association study of interleukin-1 receptor associated kinase 1 rs3027898 A?C gene polymorphism and preeclampsia in Pakistani population
Authors: Amna Mahmood  , Amena Rahim  , Muhammad Afzal  , Muhammad Imran Bajwa  , Yawar Zaman  , Hira Waqas Cheema
Published: February 2021

Abstract
Objective: To find the association between interleukin- 1 receptor associated kinase 1 rs 3027898 gene polymorphism and preeclampsia in Pakistani population. Preeclampsia (PE) is defined as hypertension with proteinuria, diagnosed after 20 week of gestation up till 2 week postpartum. . It affects 2-8% of all pregnancies and remains a leading cause of maternal and perinatal deaths worldwide  with around  344,000  women  dying  from preeclampsia in the last ten years. Incidence of preeclampsia in pregnant women in Pakistan is 1.2%. The World Health Organization (WHO) estimates that preeclampsia is responsible for 12% of  maternal mortality in Asia. Continuous...
Astrofotografia
Authors: Mululo Lorrayne dos Santos , Oliveira Willians dos Santos , Santos Santana Wanessa , Morais Alessandra Meirelles do Amaral , Oliveira Paula Guimarães de , Barcellos Leandro da Silva , Premoli Beatriz Marangoni , Rodrigues Gabriel Pinto
Published: February 2021

Astrofotografia é a arte e a técnica de fotografar o céu. Apontar câmeras e telescópios para o céu permite capturar imagens surpreendentes e reconhecer diversos objetos astronômicos, além de facilitar a compreensão acerca da estrutura do universo. Sendo assim, o objetivo desse trabalho é mostrar alguns aspectos da astrofotografia, abordando técnicas utilizadas para captura e edição de imagens, localização de objetos astronômicos no céu e, posteriormente, divulgação científica em uma rede social, utilizando como principal recurso o smartphone.
Redescobrindo o sistema solar
Authors: Silva José Jefferson da , Chagas Jardel Francisco Bonfim
Published: February 2021

O presente artigo está inserido no contexto do ensino de física, buscando-se discutir algumas abordagens teóricas e procedimentos metodológicos relacionadas com o ensino de astronomia no ensino fundamental II. Delimitando o objeto de investigação, propõe-se uma unidade didática baseada na teoria histórico-sócio-cultural voltada a alunos do 9º ano do ensino fundamental, utilizando o tema sistema solar como objeto de conhecimento a ser trabalhado durante as aulas, buscamos responder se é possível que tenhamos tempo para ensinar astronomia no 9º ano do ensino fundamental e a possibilidade de elaborar uma estratégia que envolva os alunos e os faça aprender tópicos relacionados a astronomia. Pensando na fundamentação teórica do estudo, optamos em abordar os cincos passos propostos por Galperin visando o aperfeiçoamento da aprendizagem, acreditando que o estudante deve ser o protagonista desse processo.
Intervensi Terapi Akupresure (Titik L14) pada Nyeri Persalinan Kala I Aktif
Authors: Santiasari Retty Nirmala
Published: February 2021

Nyeri adalah bagian integral dari persalinan dan melahirkan. Nyeri selama kala I fase aktif persalinan, diakibatkan oleh dilatasi serviks dan segmen bawah uterus serta distensi korpus uteri. salah satu upaya non-farmakologi untuk menurunkan nyeri persalinan dengan memberikan tindakan terapi akupresur titik L14. Tujuan studi kasus ini adalah melaksanakan asuhan keperawatan pada nyeri persalinan kala I aktif di ruang VK RSUD Bangil Kabupaten Pasuruan. Metode ini adalah study kasus dengan sampel 2 pasien dengan persalinan kala I aktif yang dirawat selama 3 hari. Sehingga study kasus didapatkan diagnosa prioritas adalah nyeri akut berhubungan dengan kontraksi uterus. Implementasi yang dilakukan pada kedua pasien adalah mengobservasi reaksi ketidaknyamanan non-verbal dari raut wajah atau tingkah laku, mengontrol lingkungan pasien dan suhu ruangan, melakukan pengkajian nyeri, memberikan terapi nonfarmakologis yaitu terapi akupresure pada titik L14, mengajarkan tehnik akupresur titik L14. Terapi akupresur titik L14 dapat mengatasi nyeri ibu pada saat persalinan kala I fase aktif dengan cara melakukan penekanan pada titik akupresur pada titik L14 diantara tulang metacarpal pertama dan kedua bagian distal dengan gerakan memutar. Dengan demikian terapi relaksasi akupresur dapat menurunkan nyeri persalinan kala I aktif. Evaluasi pada pasien 1 dan pasien 2 dengan masalah keperawatan nyeri akut ditandai dengan pasien mengatakan sudah tidak merasakan nyeri. Hasil menunjukkan keefektifan implementasi pada kedua pasien mengalami perbaikan kondisi dan masalah keperawatan nyeri kronis pada kedua pasien teratasi.