bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simple HPLC method for simultaneous quantification of nicotine and cotinine levels in rat plasma after exposure to two different tobacco products
Authors: Alhusban Ala A. , Hammad Alaa M. , Alzaghari Lujain F. 
Published: May 2022

AbstractPurposeDevelopment and validation of a selective analytical method to accurately and precisely quantify nicotine and cotinine levels in rat's plasma after exposure to tobacco cigarettes and tobacco water-pipe.MethodsAn easy HPLC-Photodiode-Array Detection (PDA) method was developed and validated for simultaneous determination of nicotine and cotinine levels in plasma of 15 rats (10 rats after tobacco products exposure and 5 control rats). Nicotine and cotinine were extracted in one step from plasma using acetonitrile and concentrated to lowest volume using nitrogen stream.ResultsThe developed method offered a rapid analysis time of 14 min with single step of analytes extraction from rat's plasma with recovery percentage range between 93 and 95% and excellent linearity with correlation factor more than 0.994 with analytical range between 50 and 1000 ng mL−1 and LOD of 25 ng mL−1 and 23 ng mL−1 for nicotine and cotinine, respectively. The analysis of rat's plasma after 28 days of exposure to tobacco cigarettes and tobacco water-pipe revealed that the average concentrations of 376 ng mL−1 for cotinine and 223 ng mL−1 for nicotine were obtained after tobacco cigarettes exposure, and 220 ng mL−1 for cotinine and 192 ng mL−1 for nicotine after tobacco water-pipe exposure.ConclusionHigher nicotine and cotinine levels were found in plasma after tobacco cigarettes exposure than water-pipe exposure which may have potential undesirable effects on passive smokers in both cases.
EFFECT OF Al, Zr AND Mo ON CORROSION RESISTANCE OF AlXCrFeNiMo AND AlXCrFeNiZr (X=1, 1.2 AND 1.4) AS FUEL CLADDING MATERIALS
Authors: Firmansyah Teguh , Dilasari Bonita , Setiawan Jan , Prajitno Djoko Hadi 
Published: May 2022

EFFECT OF Al, Zr AND Mo ON CORROSION RESISTANCE OF AlXCrFeNiMo AND AlXCrFeNiZr (X=1, 1.2 AND 1.4) AS FUEL CLADDING MATERIALS. The high entropy alloy of AlxCrFeNiM (with x = 1, 1,2 and 1,4; M = Mo and Zr) was successfully synthesized using powder metallurgy technique with sintering process at 1000 oC in an inert atmosphere. These alloys were designated as fuel cladding for research reactor with high U-density fuel such as U-Mo. One of the critical in-service properties of nuclear fuel cladding is its corrosion behavior. In this study, some properties of the HEA of AlxCrFeNiM such as the phases, microstructures, hardness, and corrosion resistance in 3 wt.% NaCl solution at room temperature were investigated. The results show that the phases in the HEA of AlxCrFeNiMo are FeNi, AlNi and Mo. The HEA of AlxCrFeNiZr has more complex phases compared to the AlxCrFeNiMo. The microstructure of HEA samples show fine grains with some micropores that imperfect the solidification during the sintering process. The hardness value of the HEA of AlxCrFeNiMo has a trend of decreasing as the x value increases. The opposite trend occurs to the HEA of AlxCrFeNiZr that the hardness value increases with increasing x value. The lowest hardness value is Al1.4CrFeNiMo at 262.2 HV, and the highest hardness value of Al1.4CrFeNiZr is at 756.7 HV. The corrosion rate of the AlxCrFeNiMo does not show a specific trend with increasing x value; however, the AlxCrFeNiZr shows decreasing value with increasing x value. The lowest value for the all-HEA samples is 0.20 mmpy for the Al1.4CrFeNiZr. The results of hardness and corrosion tests show that the Zr element combined with the Al element affects not only its hardness but also its corrosion resistance.Keywords: Fuel cladding, high entropy alloy, corrosion
EFFECTS OF FUEL DENSITY ON REACTIVITY COEFFICIENTS AND KINETIC PARAMETERS OF PEBBLE BED REACTOR
Authors: Suwoto Suwoto , Dwijayanto R. Andika Putra , Luthfi Wahid , Zuhair Zuhair 
Published: May 2022

EFFECTS OF FUEL DENSITY ON REACTIVITY COEFFICIENTS AND KINETIC PARAMETERS OF PEBBLE BED REACTOR. Few decades ago a large number of nuclear reactors were designed to use HEU as the fuel. But the use of HEU is being discouraged since it can be used as a nuclear explosive material which makes its proliferation potential. Most of the HEU-fueled nuclear reactors in the world are either closed or converted into other types that have LEU fuel with 235U enrichment below 20%. To extend lifetime, LEU fuel with high density is developed. The change in fuel density from low to high will also change core neutronics and thermal-hydraulics of the reactor, and as a result, it affects the transient response of the reactor. This paper studies the effects of fuel density on reactivity coefficients and kinetic parameters of pebble bed reactor through several calculations with MCNP6 code combine with ENDF/B-VII.1 continuous energy cross-section nuclear data library. The overall calculation results show that the Doppler temperature coefficient (DTC) increases with increasing fuel density, but the moderator temperature coefficient (MTC) decreases due to hardening of neutron spectrum. Kinetic parameters such as effective delayed neutron fraction (βeff), prompt neutron lifetime(ℓ) and neutron generation time (Ʌ) which significantly reduced with increasing fuel density will strongly affect the reactor control and safety. The results of this work conclude that the selection of 9–15 g/cm3 fuel density should be considered carefully given that its effect on reactor controllability.Keywords: Fuel density, reactivity coefficients, kinetic parameters, MCNP6, ENDF/B-VII.1.
New therapy option: Maisonneuve fracture without transsyndesmotic fixation
Authors: Dachang Feng , Zhaofa Liu , Haitao Chen 
Published: May 2022

Ankle fracture is one of the common injuries in the orthopedic department, the Maisonneuve fracture is a specific type of ankle injury. This fracture is usually caused by rotational force. According to the Lauge -Hansen classification, it is a pronation and external rotation type injury, often resulting in inferior tibiofibular injury. Because it is extremely unstable, it is usually treated surgically. Operative treatment includes medial malleolus fixation, reduction of the inferior tibiofibular joint and screw fixation. When the fibula fractured is without shortening or dislocation, it is still controversial if the inferior tibiofibular joint needs fixation. This study aims to introduce a new method-Maisonneuve without transsyndesmotic fixation and analysis the follow-up result.
SALA DE AULA EM MOVIMENTO: PRÁTICAS INTERDISCIPLINARES NA FORMAÇÃO DE NUTRICIONISTAS
Authors: Aguiar Amália Gabriela Rocha , Do Amaral Ana Julia Mourão Salheb , Simões Aquiles , Aviz Larissa Beatriz da Silva 
Published: May 2022

O objetivo desse artigo é estimular a reflexão dos profissionais da área da saúde e docentes sobre a construção do conhecimento agroecológico no processo de ensino-aprendizagem de discentes nos cursos de nutrição. Como aporte teórico foram considerados os autores Altieri (1989) para agroecologia, Freire (2016) e a prática educativa e Thiollent (2011) na reflexão-na-ação que articulados possibilitaram a interação entre os sujeitos da ação pautada na razão situada. Através da pesquisa-ação foi possível descrever a percepção dos discentes da Universidade Federal do Pará acerca das diferentes estratégias pedagógicas e seus efeitos no ensino. Os resultados mostraram que a experiência social contribuiu para uma participação ativa com aperfeiçoado senso crítico dos discentes e na constituição da identidade profissional de nutricionista. Conclui-se que as práticas interdisciplinaridades da agroecologia podem servir como instrumento teórico-metodológico no processo de ensino-aprendizagem nas instituições públicas de ensino, em especial no curso de nutrição.
O LÚDICO NO PROCESSO DIDÁTICO PEDAGÓGICO NO ENSINO FUNDAMENTAL I EM BELÉM DO PARÁ
Authors: Santos Denilson Marques dos , Costa Maria Cecilia Fagundes da , Santos Denise Marques dos , Grando Beleni Salete 
Published: May 2022

Este trabalho versa sobre a importância do lúdico no processo ensino aprendizagem no Ensino Fundamental I (EFI) e como aportes teóricos foram considerados os autores: Tessaro (2007) que discute a importância do uso de jogos em sala de aula e Vygotsky (2008) que debate o desenvolvimento psíquico da criança. As técnicas e instrumentos foram aplicados aos docentes das turmas do terceiro ano do EFI, sendo realizado um questionário contendo dez questões semiestruturadas realizadas a três (03) professores e dez (10) alunos do Centro Educacional Infantil e Fundamental “Margarida Bruno de Avelar”, escola particular da cidade de Belém do Pará. Também, utilizou-se de uma ficha guia para observação contendo seis itens a serem observados. Logo após a coleta de dados procedeu-se a etapa de analise e tabulação dos resultados obtidos, na qual revela-se que a prática da ludicidade ainda é algo limitado no contexto escolar, por isso que as brincadeiras e os jogos no processo pedagógico podem ser inseridos no currículo escolar (conteúdos de disciplinas) favorecendo o processo de ensino aprendizagem e tornando o sujeito mais consciente de seu papel na sociedade.
REVISITANDO AS POLÍTICAS DE AÇÕES AFIRMATIVAS NO ENSINO SUPERIOR: (RE) AFIRMANDO DIREITOS
Authors: Cruz Ricardo Alexandre da , Herneck Heloisa Raimunda 
Published: May 2022

Este trabalho tem como objetivo revisitar as discussões sobre as Políticas de Ações Afirmativas com o intuito de (re) afirmar a necessidade de sua continuação como mecanismo que tem se mostrado importante no combate ao racismo e à desigualdade sociorracial. Essa discussão ganha maior relevo pelo momento atual que nosso país vem atravessando, com sérios ataques à democracia e aos direitos das minorias. Desta forma, é pertinente e urgente revistar a temática das Políticas de Ações Afirmativas explicando seu significado teórico e prático, seus objetivos, suas metas, suas finalidades e sua metodologia de aplicação. Nessa perspectiva, é debatido no texto conceitos de Ações Afirmativas, Políticas Públicas, Sistema de Cotas e de autores como Walters (1995), Ribeiro (1997), Weber (2007), dentre outros. A metodologia é a pesquisa bibliográfica, lançando mão de publicações que tratam direta e indiretamente do tema proposto. Os resultados alcançados reafirmam a necessidade e a urgência de defender a manutenção das Políticas de Ações Afirmativas no país, uma vez que sem a continuidade dessas políticas não teremos como almejar e alcançar uma sociedade plenamente democrática no Brasil.
Modified ‘S’ shape ring for reactivation of open coil spring: A clinical pearl
Authors: Mahajan Akshay S , Verulkar Amol A. , Lohakpure Ratnadip A. , Bajaj Twinkle D , Dhope Shweta A. , Bhurani Sara R. 
Published: May 2022

Ni-Ti open coil springs are often used for opening spaces for crowded or for distalization of the molar teeth. Predetermining the length of open coil spring required to open up the exact amount of space is rather difficult, and sometimes, the length of the open coil spring falls short to open up the entire space required. Open coil spring usually requires reactivation to gain enough space in the arch or between two adjacent teeth. This paper highlights the chairside method of reactivation of NiTi open coil spring with the use of modified ‘S’ shape ring without removing the base archwire.
Radiografía de la provincia de Buenos Aires. Crisis de un territorio en disputa
Authors: Lanzetta Máximo 
Published: May 2022

La figura de la “radiografía” nos remite a una perspectiva de aproximación epistemológica que caracterizó a una etapa de las ciencias sociales, apoyada en las metáforas o alegorías, primero de la biología y más tarde la medicina. La construcción de una anatomía del territorio, al igual que entonces, preanuncia en cierto modo una terapia. El libro que aquí se reseña es cruzado en todos sus artí- culos por una hipótesis central, el modo en que incidió el gobierno de Cambiemos en el empeoramiento de las condiciones de los ejes tratados, en muchos casos aportando indicadores numéricos, especialmente económicos. En esa dirección encamina un diagnóstico.
Axel Kicillof, Cecilia Rodríguez, Eduardo M. Basualdo, Silvina Batakis, Roberto Baradel, Daniel Gollan, Pablo Manzanelli, Laura V. Alonso.
Más y Mejor Estado: una Administración Pública al servicio del Proyecto Nacional
Authors: Pando Diego 
Published: May 2022

Más y Mejor Estado: una Administración Pública al serviciodel Proyecto Nacional, constituye un aporte valiosopara reflexionar sobre la imperiosa necesidadde fortalecer el aparato estatal en nuestro país. Setrata de un tema clave para el bienestar de una sociedad,dado que el Estado es la llave indispensablepara los derechos de la ciudadanía, en particular paraaquellos sectores que menos tienen y más sufren, loscuales son los que más necesitan de un Estado fuerte.
Compilado por Beatriz de Anchorena; editado por Beatriz de Anchorena y Pablo ArielCampos. Prefacio de Claudia Bernazza; Beatriz de Anchorena ; prólogo de Carlos M.Vilas. Ciudad Autónoma de Buenos Aires, 2019. 253 págs. 1a edición. Libro digital. ArchivoDigital: descarga y online. ISBN 978-987-86-2514-0
El populismo argentino
Authors: Errecalde Juan Martín 
Published: May 2022

La traducción del título se presta a equívocos. Eltítulo original es Populismo progressivo. Una riflessionesulla crisi della democrazia europea, o sea El populismoprogresivo. Una reflexión sobre la crisis de la democraciaeuropea. La “crisis de la democracia europea” sóloindirectamente forma parte del volumen, que presentauna interpretación de la sociología de GinoGermani sobre el peronismo. La “crisis de la democraciaeuropea” aparece como telón de fondo dela formación intelectual de Germani; en realidad,fue parte del desafío político-existencial a la quese enfrentó toda una generación de intelectuales:Polanyi, Arendt, Mannheim, Neuman, Heller, Laskientre los más conocidos. El Primer CongresoNacional de Filosofía reunido en San Juan en 1949es ilustrativo del impacto de esa crisis en lo másgranado de la intelectualidad de nuestro país.
Buenos Aires. Prometeo libros. Primera edición 2019. 168 págs. Traducción de AlejandroGutiérrez. Prólogo de Mario Greco. ISBN 978-987-8331-21-8
Non-institutionalized frail elderly: are there any medications associated with falls? A case-control study.
Authors: Botelho Fábio Rogério da Silva , Enes Thais Bueno , Sanches Cristina , Rocha Gustavo Machado , Schneider Carl , Morato Ygor Colen , Ayres Lorena Rocha , Reis Tiago Marques , Baldoni André De Oliveira 
Published: May 2022

Objetivo: Analisar a associação entre queda e o uso de medicamentos em idosos frágeis não institucionalizados.Materiais e Métodos: Trata-se de um estudo caso-controle realizado com usuários da Atenção Básica do Sistema Único de Saúde (SUS) na cidade de Divinópolis, interior de Minas Gerais, Brasil. Os casos eram idosos frágeis com queda autorreferida no último ano e os controles eram idosos frágeis sem relato de queda, pareados por sexo, idade e centro de saúde. A variável de desfecho foi a ocorrência de queda no último ano. As variáveis de exposição foram o uso de medicamentos por classe de medicamentos, o uso de terapia medicamentosa combinada, início e interrupção e ajuste de dose nos últimos 12 meses. A magnitude das associações foi estimada por Odds Ratio (OR).Resultados: Na análise univariada, o uso de medicamentos antianêmicos, antiinfl amatórios, antiepilépticos e a suspensão e iniciação da medicação estiveram associados à queda. Após ajuste pelas demais variáveis de exposição e covariáveis, houve associação signifi cativa entre quedas e uso de medicação antianêmica (OR = 6,10; IC95% 1,72 - 21,58).Conclusão: A queda de idosos frágeis não institucionalizados esteve associada ao uso de medicamentos antianêmicos, associação não descrita em outros estudos.
Fitormônios Esteroidais: Uma Revisão
Authors: Dos Passos Thaís Couto , Mendes Tátilla Putumujú Santana , Cedro Pâmala Évelin Pires , Miranda Alana Caise Dos Anjos , Valasques Júnior Gildomar Lima , Lima Danyo Maia 
Published: May 2022

Objetivo: O presente trabalho tem como finalidade investigar os estudos realizados na literatura, buscando evidências científicas que corroborem o uso dos fitoterápicos citados, com ação anabolizante, atestando seus riscos e benefícios.Método: Trata-se de uma revisão integrativa, utilizando o método PRISMA (Principais Itens para Relatar Revisões Sistemáticas e Meta-análise) como exemplo, onde foram buscados nas bases de dados estudos clínicos em animais e humanos.Resultados e discussão: Verificando as informações obtidas, observou-se que alguns fitoterápicos obtiveram efeito ergogênico positivo elevando os níveis de testosterona livre e força muscular, mas não induziram o aumento de massa corporal magra. Também houve aumento na libido, motilidade e qualidade de esperma, bem como outros efeitos benéficos a saúde. Conclusão: Desta forma, não possuem estudos conclusivos que comprovem a efetividade dos mesmos para o aumento de massa muscular decorrente da indução de produção de testosterona. Mucuna pruriens e Eurycoma longifolia (long jack) obtiveram os melhores resultados no que diz respeito ao efeito ergogênico e testosterona sérica, ainda assim mais ensaios clínicos em humanos são necessários para comprovar sua completa incontestabilidade.
Experimental investigations on mechanical properties of normal and high strength high calcium geopolymer concrete
Authors: Trivedi Amit , Ohja P N , Singh Abhishek , Singh Brijesh , Bansal Shivang , Sengupta Lopamudra 
Published: May 2022

Alkali activated (Geopolymer) concrete is an excellent and viable alternative to Portland cement based concrete as it can be produced using industrial by-products such as Ground Granulated Blast Furnace Slag (GGBS) and fly ash (source of reactive alumino-silicates) along with less energy craving ingredients such as alkali activators. In this study, slag based geopolymeric concrete mixes of M40 and M80 grade were prepared using GGBS and fly ash in proportion of 70:30 by weight. Geopolymeric binder was activated using combination of Sodium hydroxide and Sodium Silicate. Activator modulus (i.e. SiO2 / Na2O) was maintained as 1 and Na2O was kept as 7% and 8% by weight of total binder respectively for M40 and M80 grade geopolymeric concrete mixes. Both the concrete mixes were evaluated for fresh properties of concrete (slump and air content) along with mechanical properties of hardened concrete. Performance of geopolymeric mixes was compared with two conventional concrete mixes of equivalent grade (i.e. M40 and M80) in terms of aforementioned mechanical properties. Study concludes that slag based geopolymer concrete mixes of a particular strength were developed at significantly lower total binder content in comparison to cementitious binder required for development of conventional Portland cement based concrete of equivalent strength. Early age compressive strength of normal strength geopolymeric concrete mixes is higher in comparison to conventional concrete mix. Modulus of elasticity and Poisson’s ratio of geopolymeric mixes of both normal and high grade are observed to be lower in comparison to their corresponding conventional concrete mixes of equivalent strength.
A Case Study on Condition Assessment of Fire-Damaged RC Members of Turbo-Generator
Authors: Mundra Sanjay , Reddy T V G , Kumar Nitesh , Bansal Shivang , Ohja P N 
Published: May 2022

Many researchers across the globe have carried out fire safety risk analysis to gather evidence and pertinent data for different Reinforced Cement Concrete (RCC) members exposed to fire. Assessment of fire-damaged structures furnishes the minute details of the effect of fire on the properties of concrete.The study indicates the condition assessment of the turbo-generator (TG) unit, comprises of concrete bearing pedestals, deck and supporting columns. The research was conducted using Non-Destructive Testing (NDT) techniques using Rebound hammer test, Ultrasonic Pulse Velocity (UPV) test, Concrete Cover measurement, Carbonation and Crack depth measurements followed by microstructural studies using an X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Optical Microscope (OM), and Mercury Intrusion Porosimetry (MIP). The samples were taken from a fire-damaged concrete bearing pedestal B2 and a non-fire-damaged concrete bearing pedestal B4 of the TG unit. The approach enabled us to find the extent of damage to the RCC members exposed to fire. The above mentioned test witnessed that the concrete bearing pedestal B2 was the moderately distressed member, expressed doubtful quality of concrete, higher porosity, reduced residual compressive strength and reduction in yield strength of steel. However minor distress in form of crushing at the top grout portion was observed in concrete bearing pedestal B4, and no apparent distress was observed in supporting columns of TG unit. Based on the distress identified, repair and remedial measures were proposed to concrete bearing pedestals in order to improve the performance of the TG unit.
Design clarity learning model to improve advanced clarification ability on physics courses
Authors: Saputro Sigit Dwi , Tukiran Tukiran , Supardi Zainal Arifin Imam 
Published: May 2022

Advanced clarification is an essential part of thinking skills relevant to students, which contains the ability evaluate, make decisions and make arguments. This ability is needed to prepare students to face the VUCA era. Clarity Learning Model (CLM) is a formulation of IBL, and the strengthening of reasoning abilities aims to improve advanced clarification abilities in physics courses. The purpose of this study is to test the validity and reliability of Clarity Learning Model. The method used in this study is a validation technique which is part of the research and development model. The results of this study are valid and reliable Clarity Learning Model as an instructional design to develop further clarification on critical thinking skills. This model is still valid and reliable as instructional design in theory and material substance. Clarity Learning Model needs to be empirically tested to determine the practicality and effectiveness of the learning model.

Keywords: Inquiry-based learning, reasoning, validation technique, advanced clarification, physics courses
Western influence in the creation of sculpture education and monuments
Authors: Keser Sezer Cihaner , Yuksel Hanife Neris 
Published: May 2022

Many powers use art as a mean to transform social and political culture. The aim of this study is to examine approach and relationship between the ideological and social conditions of arts, culture and education policy with regard the power in the example of Sculpture Art Education in a eurasia state. This research has been done in accordance with document analysis, which is one of the qualitative research methods. In this direction, the document analysis covers the years 1923-1956. In the study, art education policies were set out based on the political and cultural influences of the period. In addition, the spread of revolution was examined from the point of how the art of sculpture come true and its interaction with western. The relationship between sculpture education and applied sculptures has been handled with the defined ideological dynamics.
Key Words: Art; Education; Ideology, Sculpture Education; Westernization,