bluuebunny/crossref_metadata_2025 huggingface dataset:
Theoretical Study on the Formation of 1-neutron and 2-neutron Halo Nuclei via Decay of Elements in Super-Heavy Region
Authors: R.K. Biju  , K. Prathapan  , K.P. Anjali
Published: November 2020

The possibility for the existence of 1-neutron and 2-neutron halo nuclei through the decay of even-even nuclei 270-316116, 272-318118 and 278-320120 in the super-heavy region is studied within the frame work of the Coulomb and Proximity Potential Model (CPPM). Halo structure in neutron rich nuclei with Z<=20  is identified by calculating the neutron separation energies and on the basis of potential energy considerations. The 1n + core configuration of proposed 1-neutron halo nuclei between z=10  and Z=20 is found shifted to 2n + core configuration in higher angular momentum states. The calculation of half-life of decay is performed by considering the proposed halo nuclei as spherical cluster and as deformed nuclei with a rms radius. Except for 15C, the half-life of decay is found decreased when the rms radius is considered. Only the 1-neutron halo nuclei 26F and 55Ca showed half-lives of decay which are less than the experimental limit. None of the proposed 2-neutron halo nuclei have shown a half-life of decay lower than the experimental limit. Also, the probability for the emission of neutron halo nuclei is found to be less in super-heavy region when compared with the clusters of same isotope family. Further, neutron shell closure at neutron numbers 150, 164 and 184 is identified form the plot of  log10 T1/2 verses the neutron number of parents. The plots of Q-1/2 verses log10 T1/2 and -ln P verses log10 T1/2 for various halo nuclei emitted from the super-heavy elements are found to be linear showing that Geiger-Nuttall law is applicable to the emission of neutron halo also.
Design and Development of a Mini-Orange Magnetic Spectrometer with Multichannel Facility for Conversion Electron Spectroscopy
Authors: K. Venkataramaniah  , M. Sainath  , K.Vijay Sai  , Dwarakarani Rao  , Deepa Seetharaman
Published: November 2020

Background: Conventional magnetic spectrometers used for conversion electron detection are very cumbersome, require strong magnetic fields and the spectra have to be scanned point by point and have very low transmission. A magnetic filter using permanent magnets and an Si(Li) detector would facilitate multichannel analysis with high transmission. The mini-orange is a new type of spectrometer for conversion electrons combining a solid state Si(Li) detector with a filter of permanent magnets around a central absorber of lead.Purpose: An indigenously developed magnetic spectrometer if optimized properly would be of great use in conversion electron spectroscopy for both online and offline experiments. Methods: A Mini-Orange magnetic spectrometer made of small permanent magnets has been designed and developed indigenously and optimized for its best performance condition. The transmission curves for different energy regions are plotted using the conversion electron spectra from the standard gamma transitions from 153Gd, 169Yb and 131Ba decays. The optimized spectrometer facilitates multichannel acquisition of conversion electron spectra for precision electron spectroscopy. The system also can be used in in-beam experiments with minor modifications of the vacuum chamber.Results: The optimized spectrometer was used for precision electron spectroscopy. Experimental transmission curves are then obtained by plotting Transmission (T) against the corresponding electron energy for low energy, medium energy and a broad energy range. Out of the several experiments done the optimum settings for f and g, that resulted in this curve, is identified at f = 7.5 cm and g = 4.5 cm. Conclusions: The optimized spectrometer facilitates multichannel acquisition of conversion electron spectra for precision electron spectroscopy. The system also can be used in in-beam experiments with minor modifications of the vacuum chamber.
Simulation Education for Preterm Infant Delivery Room Management at Community Hospitals
Authors: Barbato Alana L. , Wetzel Elizabeth A. , Li Wenfang , Bo Na , Mayer Lisa , Byrne Bobbi J.
Published: November 2020

BACKGROUND:

Preterm infants are at risk for hypothermia in the delivery room (DR). Hypothermia and community hospital delivery are factors associated with increased morbidities and mortality in preterm infants. Community hospital providers have less experience with preterm deliveries and thermoregulation methods in the DR.

METHODS:

Community hospital DR providers in Indiana completed a cognitive test evaluating preterm infant DR management. A simulation-based team assessment was evaluated by using a scoring tool. After debriefing, the simulation performance was repeated and rescored. Afterward, providers completed a cognitive knowledge posttest. Eleven to eighteen months later, sites were revisited with cognitive knowledge and team simulated scenarios reassessed.

RESULTS:

Twenty-five community hospitals with >400 multidisciplinary providers participated in the initial study visit. Average pre- and posttest scores were 48.8% and 94.1% respectively (P value <.001). Participants performed an average of 22.8 of 36 scoring items during a simulated preterm delivery including 4.4 of 8 thermoregulation related actions. Performance immediately improved in a statistically significant manner during the repeat scenario. When sites were revisited, participants performed an average of 26.7 of 36 scoring items including 6.1 of 8 thermoregulation actions during a simulated preterm delivery a statistically significant (P <.001) improvement from the initial visit.

CONCLUSIONS:

Simulation education regarding preterm infant DR management improved community providers immediate knowledge and skills and also follow-up performance at ∼1 year. In simulation, providers performed thermoregulation maneuvers more often and efficiently, critical to resuscitation because delays in thermoregulation can significantly adversely affect outcomes.
RPEEE (Reasonable Prospects for Eventual Economic Extraction): The critical core to the SAMREC Code
Authors: Lock N.
Published: November 2020

SYNOPSIS Reasonable Prospects for Eventual Economic Extraction (RPEEE) is the critical basis for effective implementation of the SAMREC Code as it applies to Mineral Resources, and implicitly to Mineral Reserves that are derived from Mineral Resources. This implementation follows the founding principles of materiality, transparency, and competence. The SAMREC definition of a Mineral Resource specifically includes RPEEE. SAMREC provides guidance for all minerals on what RPEEE means, with some specific additional guidance for diamonds. SAMREC instructs the Competent Person that RPEEE must be demonstrated through reasoned assessment of multiple technical and non-technical parameters, and with disclosure in reporting. A recommended chapter in a CPR includes a sub-section for RPEEE. SAMREC definitions and guidance are presented with discussion of the factors that must be assessed to demonstrate RPEEE. Comparison with guidance in other reporting countries and examples of actual practice are presented. Keywords: reporting codes, Mineral Resources, definitions, disclosure, SAMREC.
A QUESTÃO DOS DIREITO DA NATUREZA NO VIÉS DA JUSTIÇA ECOLÓGICA: QUAL A TUTELA JURÍDICA A SER BUSCADA?
Authors: Pellenz Mayara , Baldissera Rafela , Baldissera Rafela
Published: November 2020

Esta pesquisa tem por objetivo analisar o Direito da Natureza a partir da questão ecológica dos direitos humanos no viés da Justiça Ecológica como realidade possível. Diante dessas categorias indaga-se: de que modo e possível concretizar o Direito da Natureza, como ser próprio e sujeito de direitos? Aponta-se que para restabelecer as relações de respeito com a Natureza e com complexidade da vida que sustenta os biomas, é necessário mudar valores preestabelecidos, ou seja, o formato hoje dominante do homem de competição predatória e incluir o mudar que requer ampliar a atitude de libertação no modo que reside do agir, do pensar, da ética, na desaceleração da entropia e ampliar as redes comunitárias de sustentabilidade.
Análise dos Marcadores de Adultez em Jovens Brasileiros: Reflexões
Authors: Freire Denilson Aparecida Leite
Published: November 2020

Tornar-se adulto é um processo universal que implica em aspectos fisiológicos, emocionais, econômicos e socioculturais. Para tanto, alguns marcadores podem ser utilizados para se verificar tal processo. O objetivo do trabalho foi investigar essa transição para a idade adulta por meio do Questionário de Marcadores de Adultez (Questionnaire of Markers of Adulthood – QMA) - (Arnett, 2001), junto a jovens estudantes de Psicologia da região do Triângulo Mineiro. Os participantes revelaram que o marcador que mais impacta na passagem do jovem para a maturidade está na independência e maturidade emocional e que, efetivamente, existe um prolongamento da transição da adolescência para a vida adulta, ocasionando reflexos na inserção do mercado do trabalho e na consolidação de carreiras.
EROTISMO EM CONTEXTOS (DÊS) INSTITUCIONAIS: AEROMOÇAS DA VARIG NA PLAYBOY
Authors: Castellitti Carolina
Published: November 2020

O presente artigo realiza uma análise antropológica de um ensaio fotográfico realizado por três aeromoças da Varig para a revista Playboy, em 2006. Além das fotos, o material empírico analisado (jornais e blogs) problematiza a repercussão pública do ensaio, a partir do contraste com os discursos das protagonistas. Em diálogo com os debates do pensamento feminista dos anos 1960 e 70, e recuperando algumas contribuições contemporâneas relativas à noção de agência nos estudos de gênero, dou atenção ao contexto das fotos assim como às falas das protagonistas, para problematizar a imagem de vítimas produzida pela mídia. Espero, desse modo, contribuir com uma perspectiva que, em lugar de pensar as desigualdades de gênero de um modo rígido, considere a posição social dos sujeitos nas hierarquias múltiplas de poder, para enxergar outros tipos de desejos, vontades, estratégias e agências.
ESPAÇOS NÃO-FORMAIS E A EDUCAÇÃO EM CIÊNCIAS: O PROJETO PRAÇAS DA CIÊNCIA NO ESTADO DA BAHIA
Authors: Costa Jean Mário Araujo , Caires de Souza Marta , Siqueira de Freitas Kátia
Published: November 2020

A Educação em Ciências se processa em diversos espaços e contextos. Os espaços não formais tornam-se cada vez mais importantes na Educação Científica na medida em que possibilitam e colaboram para que os conhecimentos científicos e tecnológicos e suas repercussões possam ser acessados por diferentes pessoas e em diferentes perspectivas. Este artigo resultou de revisão bibliográfica e análise documental com o objetivo de discutir as relações entre os espaços não formais e a Educação em Ciências, tendo como foco o projeto Praças da Ciência, implantado no Estado da Bahia-Brasil. Discute-se que o projeto reforça o importante papel das Praças da Ciência como espaços que possibilitam a aproximação da sociedade ao conhecimento científico, bem como com os processos formais de educação, ao mesmo tempo, evidencia a necessidade de maior abrangência do projeto e estratégias didáticas articuladas e regulares no campo do ensino, da divulgação e da popularização da ciência, tendo em vista a relevância que esses espaços desempenham para a Educação em Ciências, seja em âmbito da educação formal ou não.
EM TEMPOS DE CIBERCULTURA, UM PORTAL À MEMÓRIA INSTITUCIONAL
Authors: SOUZA FRANCISCO DAS CHAGAS SILVA , Medeiros Neta Olívia Morais de
Published: November 2020

Diante da popularização da informática, a cibercultura, ou seja, a cultura contemporânea estruturada pelo uso das tecnologias digitais, emerge como uma nova forma de guarda. Neste sentido, o artigo visa compreender o Portal da Memória do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte (IFRN) como um lugar de memória institucional. Para tanto, tomamos à analise elementos presentes no Portal, entendendo-os como fontes e os relacionamos com possíveis temas de estudo em história da educação profissional. História das instituições educativas, cultura escolar, currículo e organização escolar, arquitetura e cultura material escolar e sociabilidades constituíram-se como temas possíveis de investigação a partir do Portal da Memória do IFRN. Nesses termos, destacamos que as fontes presentes no Portal da Memória não falam per se, mas que essas trazem ao Portal a possibilidade de acesso às dimensões da história e da memória da educação institucional. Por isso, o Portal da Memória em sua dimensão da cibercultura é um portal à memória institucional do IFRN.
CONTRIBUIÇÕES DA MONITORIA ACADÊMICA NA FORMAÇÃO DOCENTE DE LICENCIANDOS EM CIÊNCIAS BIOLÓGICAS
Authors: MENEZES JONES BARONI FERREIRA DE , MOTA FRANCISCA DANIELA LIRA
Published: November 2020

A participação em programas de contribuição para a formação docente, como o projeto de monitoria acadêmica contribui para o discente desenvolver sua própria didática e favorecer sua formação, realizando atividades de pesquisa ensino e extensão, complementando o papel do docente e criando uma relação bilateral de aprendizagem. Assim o presente trabalho objetivou analisar as contribuições do programa de monitoria acadêmica na formação docente para os discentes monitores de um curso de Ciências Biológicas. Para isso aplicou-se um questionário aos 10 estudantes que realizaram o exercício da monitoria em disciplinas no curso em questão, durante o ano de 2016. Os monitores alegaram optar pela monitoria devido às horas complementares, afinidade com a disciplina (9 alunos) e oportunidade de aperfeiçoar a formação docente (6 alunos) além de, em unanimidade, corroborarem como importante contribuinte da formação para o fazer docente, propiciando a compreensão da diversificação metodológica e dinamização das aulas das disciplinas contempladas com monitoria. Dessa forma, os resultados apontam para uma positiva contribuição da monitoria acadêmica na formação docente dos futuros professores.
AVALIAÇÃO DE AÇÕES DE PRÁTICAS DE SUSTENTABILIDADE EM ESCOLA MUNICIPAL DE ENSINO INFANTIL NA ZONA SUL DA CIDADE DE SÃO PAULO - SP
Authors: Oliveira Fernandes Renata , Leitão Zajac Maria Antonietta , Portella Ribeiro Andreza , Branco do Nascimento Ana Paula
Published: November 2020

O ambiente escolar é propício à aplicação de programas de educação ambiental, que encorajam mudanças de atitudes e práticas relacionadas à sustentabilidade. Este trabalho apresenta um modelo de projeto ambiental, experimental e integrado, desenvolvido por uma equipe multidisciplinar em parceria com uma Escola Municipal de Ensino Infantil. O objetivo deste trabalho foi verificar qual a importância da sustentabilidade no âmbito escolar, por meio de programas de sensibilização e conscientização, bem como intervenções no espaço físico. Dentre as propostas do projeto destacou-se a implantação de uma Horta Escolar associada à compostagem de resíduos orgânicos. Ocorreu a participação tanto da comunidade escolar como dos educadores, alunos e pais. Essas práticas, quando inseridas no ambiente escolar, tornam-se um novo instrumento, o qual possibilita desenvolver diversas atividades ligadas à Educação Ambiental e alimentar, unindo teoria e prática. Portanto, este relato técnico contribui para apontar os benefícios destas ações e práticas voltadas à sustentabilidade.
EDUCAÇÃO INTEGRAL: CONCEPÇÕES DOCENTES DA REDE MUNICIPAL DE ENSINO DE UBERABA-MINAS GERAIS
Authors: Resende Ribeiro Diovane de César , Silva Diego Gerônimo , Moreira Wagner Wey , Simões Regina Maria Rovigati
Published: November 2020

O artigo versa sobre uma pesquisa de mestrado em andamento vinculada ao Programa de Pós-Graduação em Educação da Universidade Federal do Triângulo Mineiro. Tratou-se nesse trabalho do histórico da concepção de Educação Integral no Brasil e o Programa de Educação em Tempo Integral da Rede Municipal de Ensino de Uberaba/MG. Partindo da problemática de como os professores que atuam nas turmas dos anos iniciais de uma escola de tempo integral, percebem a Educação Integral?, traçou-se como objetivo analisar as percepções dos docentes regentes das turmas e professores responsáveis pelas oficinas dos anos iniciais na escola de tempo integral, possuem quanto à Educação Integral. A pesquisa utilizou como método de coleta para construção do material empírico a “Entrevista Narrativa” e para a análise dos dados a “Técnica de elaboração e análise de unidades de significado” para interpretação dos dados. O trabalho foi desenvolvido com 17 professores da rede municipal de ensino. Identificou-se diferentes concepções de Educação Integral nas respostas dos docentes: ampliação da jornada escolar, e ainda, notou-se a construção de uma identidade municipal para a política de Educação Integral.
PEDAGOGIA SOCIAL COMO FORMA DE RECONHECIMENTO SENSÍVEL ÀS DIFERENÇAS
Authors: Conte Elaine , Habowski Adilson Cristiano , Rios Míriam Benites
Published: November 2020

O estudo apresenta perspectivas formativas e culturais da Pedagogia social à luz de narrativas contemporâneas, tendo como inspiração as novas formas de linguagens, na busca por uma educação que valoriza a diversidade cultural. A educação voltada às demandas de reconhecimento social e igualdade sensível à inclusão dos grupos vulneráveis é algo próprio à pedagogia social, um sentido posto de inclusão das diferenças e responsabilidade solidária pelo outro como condição de possibilidade à democracia. A partir da compreensão hermenêutica enquanto cooperação reflexiva, a ideia é de promover a reinvenção de debates críticos sobre o universo das tecnologias de interação humana, como forma de pensar a Pedagogia social, na dimensão do que é tecido junto com o outro. O conhecimento está em constante transformação e o saber está vinculado ao mundo prático, escolar e não escolar, de vida em comunidade, na articulação com a realidade e com experiências de mundo. Contudo, tecemos uma aproximação com as linguagens tecnológicas no sentido de exercitar a participação crítica na vida democrática e à liberdade cooperativa. Concluímos que a Pedagogia social lança possibilidades para transcender a perspectiva instrumental das tecnologias digitais, em favor do (re)conhecimento recíproco de uma experiência social, tecida em rede de relações sociais no mundo criadora, de comunidades aprendentes, para que os sujeitos tenham condições críticas de intervir na realidade em que estão inseridos.
Priorização de Requisitos Ágeis com PDM
Authors: Dos Santos Silva Luís Antônio , Reis Bruno
Published: November 2020

Resumo. As empresas precisam desenvolver sistemas complexos com rapidez e eficiência. Priorização é uma parte crítica do desenvolvimento e isso envolve analisando a importância dos requisitos das partes interessadas e equipe de desenvolvimento e a seleção dos requisitos a serem implementadas em uma determinada versão do sistema. A decisão errônea sobre quais requisitos priorizar pode afetar o projeto e, consequentemente, sua qualidade perante os clientes. Nesta fase podem ocorrer problemas, porque o cliente pode acreditar que um determinado requisito é mais importante do que ele realmente tem outro ou como você pode não dar importância a outros requisitos necessários. O principal objetivo desta pesquisa é propor um processo de priorização de requisitos para projetos de software ágeis baseados na técnica PDM, que foi originalmente propostas na área de planejamento estratégico.
Revising Frameworks for Developing Mobile Virtual Reality
Authors: Rodriguez Guillermo , Gomes Rocha Fábio
Published: November 2020

The development of mobile virtual environments has been enabled by recent advances in hardware and software for mobile computing. This new trend has resulted from the convergence of wearable computing, wireless networking and mobile virtual reality interfaces. This work provides a survey of different mobile technologies that are useful to build virtual reality applications running through mobile devices. Our aim is to place those technologies into different categories so that it becomes easier to understand the state of art and to help identify new directions of research. A comparison of attributes of each technology is also summarized.
Concept of “sobornist” in public activity of the State Center of Ukrainian People’s Republic in exile in 1920s – 1930s
Authors: Yablonskyi Vasyl
Published: November 2020

In the article author reviews ideological approaches and practical application of the “sobornist” of Ukraine concept by the State Center of Ukrainian People’s Republic (UNR) in exile. The views of leadership of the Ukrainian government in exile about “sobornist” are examined in the context of their debates with the emigrant political opponents and rivals in the occupied territories. Despite different conceptions of restoring Ukraine’s independence in the future, the UNR government’s emigration center was united in the idea that Ukraine would be consolidated into one state only when the Ukrainian government established control over Kyiv and the Dnieper region. Ideas of restoring independence of certain regions were considered unrealistic and harmful.

The obstacle in establishing cooperation between the State Center of UNR and various political groups, including regional ones, was the consequences of the signing of the 1920 Warsaw Pact by the Directory of the UNR.

The author also looks at the policies of the State Center of UNR in the international arena toward protection of rights of the Ukrainians during “pacification” in Poland (1930) and emergence of the Carpathian Ukraine (1938-1939).

It is argued that reframing the concept of “sobornist” of Ukraine in the process of restoring Ukraine’s independence was a complex endeavor, which hindered consolidation of the emigrant Ukrainian parties in the years between two world wars.
Hány barátja van Önnek? : A barátok számának alakulása három évtized alatt (1986–2018)
Authors: Albert Fruzsina , Dávid Beáta , Tóth Gergely
Published: November 2020

A barátnak tekintett kapcsolatok számosságának alakulását vizsgáljuk nyolc reprezentatív lakossági adatfelvétel segítségével az elmúlt 3 évtized során. Az elemzés a baráttal nem rendelkezők, az 1–5 baráttal rendelkezők, illetve a legalább 6 barátot említők jellemzőit vizsgálja. Az életkor növekedésével jelentősen csökken, az iskolai végzettség emelkedésével pedig nő a barátok száma és az aktív munkaerőpiaci részvétel is tágabb baráti körrel jár együtt. A nem differenciáló hatása a vizsgált időszak végére eltűnt. A barát számok eloszlásának és a baráttal egyáltalán nem rendelkezők arányának jelentős ingadozása az adatfelvételi eltéréseken túl összességében a baráti kapcsolatok belső struktúrájának átalakulását és a barátság köznapi definíciójának módosulását jelzi. Az adatok a társadalom teljes spektrumát érintő homogenizációs trendre utalnak: napjainkban néhány baráttal a magyar felnőtt lakosság túlnyomó többsége rendelkezik. A barátot nélkülözők aránya csökken, amit pozitívan értékelhetünk, ugyanakkor a kimondottan kiterjedt baráti körrel rendelkezők számának szintén jelentős csökkenése a szélesebb társadalmi integráció gyengülését mutatja.
Association of alcohol and tobacco with changes in overall cancer mortality
Authors: Jiang Heng , Nofer Lawrence
Published: November 2020

Alcohol use clearly raises the risk of cancer many times more than drinking or smoking alone. Alcohol may also limit how cells can repair damage to their DNA caused by the chemicals in tobacco. However, exactly how alcohol affects cancer risk isn’t completely understood. In fact, there are likely several different ways it can raise risk, and this might depend on the type of cancer. Total cancer mortality data from the 1990s to 2018 were collected from the Bialystok, Poland of Statistics and Cancer Council, the WHO Cancer Mortality Database. The policies with significant relations to changes in alcohol and tobacco consumption were identified in an initial model. Intervention dummies with estimated lags were then developed based on these key alcohol and tobacco policies and events and inserted into time-series models to estimate the relation of the particular policy changes with cancer mortality. The aim of this study is to examine the effectiveness of smoking and alcohol cancer outcomes.
Combined orthopedic and orthodontic correction of class 11 division 1 malocclusion - A case report
Authors: Sindhu Deepak , Kamal Kukreja Manisha , Asija Sakshi
Published: November 2020

Class 11 malocclusion generally occurs as a result of either increased maxillary growth or decreased mandibular growth or a combination of the same. Face bow along with headgear redirects the maxillary growth, where as functional appliances bring about the forward positioning of the mandible. The present case report show case a young girl of 11 years of age who was treated with a combination of high pull face bow attached with the activator, followed by fixed mechanotherapy. The combined headgear activator therapy provides greater cumulative skeletal benefits than a single appliance alone. Meticulous diagnosis and sound knowledge of biomechanics persuades efficient treatment results.
Use of an Indoor Solar Flash Test Device to Evaluate Production Loss Associated to Specific Defects on Photovoltaic Modules
Authors: Luciani Silvia , Coccia Gianluca , Tomassetti Sebastiano , Pierantozzi Mariano , Di Nicola Giovanni
Published: November 2020

During their lifetime, photovoltaic (PV) plants are subject to a normal degradation of their components, and they are consequently characterized by decrease of the expected production. In order to prevent and evaluate failures and loss of production, specific tests can be carried out on the PV modules. Non-destructive methods, such as visual inspection and infrared thermography, can be performed in order to determine production failures or defects on the PV modules. I-V curves allow to estimate the performance of photovoltaic modules and strings, estimating the deviation between the power of the examined module and that declared by the manufacturer. The aim of this work is to evaluate the efficiency loss of photovoltaic modules associated to specific defects, causing in a systematic way some faults on a set of brand-new modules and assessing the relative decrease of power. The set of brand-new photovoltaic modules, after being damaged, was experimentally characterized determining their I-V curves by means of an indoor solar flash test device based on a class A+ AM 1.5 solar simulator. Using the I-V curves as a dataset, it was possible to estimate the incidence of different defects on the power of the photovoltaic module being considered.
Analizy PVT jako skuteczne narzędzie w rękach inżyniera naftowego. Pobór wgłębnych próbek płynów złożowych do badań PVT
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Warnecki Marcin , Wojnicki Mirosław ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Kuśnierczyk Jerzy ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Szuflita Sławomir ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy
Published: November 2020

The most important aspect of laboratory analysis is undoubtedly to acquire data of the highest quality. The worldwide trend of drilling into deeper reservoirs characterised by the high temperature and high pressure (HTHP) conditions makes the newly discovered reservoirs challenging because of bearing fluids with an unprecedented diversity of phase behaviour and variability of phase parameters over time. Due to the high temperature of the deep horizons constituting the reservoir rock, many individual components of the reservoir fluids are located in a region close to their critical temperatures, i.e. gas condensate (retrograde condensation region) or volatile oil. In particular, gas condensate reservoirs are challenging to analyse. They are highly prone to the errors resulting from phase behaviour testing when using samples that are incompatible with the original reservoir in-situ fluid that saturates the reservoir rock pores. Taking the representative samples of reservoir fluid is an essential requirement to obtain reliable data that can characterise such phase-variable multicomponent reservoirs. The primary purpose of hydrocarbon fluid analysis in case of new discoveries is to determine the type of reservoir fluid system. It should also be borne in mind that without a sufficiently long production process from several intervals and/or several wells, it can be challenging to classify the fluid with confidence, especially at the initial analysis stage. The paper presents issues related to sampling of the reservoir fluid (such as crude oil and natural gas) for the physical property and phase behaviour analyses (PVT), usually accompanied by chemical analyses. The importance of representativeness of the samples in performing reliable tests that have a significant impact on the hydrocarbon production was discussed. The data obtained from the PVT laboratory are widely used in economic reports concerning local, regional or finally national hydrocarbon reserves. Other applications of the PVT data include coordination of reservoir exploitation methods related to a particular fluid composition, as well as input to design requirements for the surface facilities development, and selection of the suitable technology for hydrocarbon fluid treatment prior to introduction to the market. Various techniques of downhole sampling were mentioned and characterised with an explanation of their applicability. The criteria for selection of a proper method were also presented.
Asociación entre el consumo de frutas y verduras con la prevalencia de hipertensión arterial en adultos peruanos en el año 2017
Authors:   ,   Universidad Peruana de Ciencias Aplicadas (UPC), Morales Velásquez Martha Sofía
Published: November 2020

Introducción: Las enfermedades cardiovasculares son la cuarta causa de mortalidad y morbilidad en la población. Dentro del grupo, la hipertensión arterial (HTA) es considerada como la más frecuente en la población mundial. Esta patología, caracterizada por el aumento crónico de la presión arterial de una forma mantenida en el tiempo, se puede prevenir modificando factores de riesgo, principalmente los característicos de la HTA primaria. El objetivo del estudio es determinar si existe asociación entre el consumo de frutas y verduras con la prevalencia de hipertensión en adultos del año 2017. Material y métodos: Estudio transversal observacional descriptivo basado en los datos del estudio transversal “Encuesta Nacional Demográfica y de Salud Familiar-ENDES, 2017”. Se incluyeron adultos de 18 a 59 años de edad. La variable exposición fue consumo de frutas y verduras, definida en base a auto-reporte basado en las preguntas del WHO STEPs se consideró el número de frutas y verduras, y la cantidad de días (durante la semana) que fue consumido. Para definir HTA se tomó en cuenta tanto el auto-reporte de HTA como la medida de presión arterial. Así se tiene que para el presente estudio se consideró HTA a aquellos sujetos que: Tenían presión sistólica ≥140 mmHg y/o presión diastólica ≥90 mmHg o tenía diagnóstico previo de HTA; como no hipertenso se consideró a la persona que tenía un promedio de presión sistólica <140 mmHg y promedio de presión diastólica <90 mmHg y además nunca había sido diagnosticada como HTA. Resultados: Se evaluaron 27332 participantes, la edad promedio fue 36,411,69 el 51.72% fueron mujeres y el 48.3% fueron hombres. La prevalencia de HTA fue de 15% hombres y 10% en mujeres. En cuanto al consumo de frutas y verduras, se encontró que el 94.5% de la población no alcanza a consumir las 5 porciones recomendadas. Conclusión: No se encontró asociación entre el consumo de frutas y verduras y la prevalencia de hipertensión arterial en adultos. A pesar de ello, de acuerdo a lo estudiado, se consideró de suma importancia el consumo de frutas y verduras en la dieta diaria, así como la adopción de más hábitos que le permita a la población tener un estilo de vida saludable.
Conocimiento del aporte calórico en la elección de compra de menú en estudiantes universitarios de Lima, Perú
Authors:   ,   Universidad Peruana de Ciencias Aplicadas (UPC), Loo Prevoo Ana Milena , Beretta Gómez Gerardo Enrique
Published: November 2020

El sobrepeso y la obesidad son problemas de salud pública que en los últimos años vienen afectando a países en vías de desarrollo. La compra y consumo de alimentos pueden estar afectados por múltiples factores, entre ellos, el conocimiento del aporte calórico. Nosotros ejecutamos un estudio pre-post para conocer si existe un cambio en la elección de compra de menú en universitarios luego de conocer el aporte calórico. Para ello, a través de un muestreo por conveniencia invitamos a participar a 205 estudiantes. Se seleccionaron seis menús más consumidos y, en dos momentos diferentes, se evaluó la elección siendo la única diferencia, entre la primera y segunda evaluación, la información calórica. Para efectos de evaluar el cambio, ejecutamos una prueba de McNemar. Para tal efecto, se agrupó los menús en hipercalóricos y normo/hipocalóricos. Según esta, 33 personas cambiaron de hipercalórica a normo/hipocalórica y 3, en sentido contrario (p<000.1, ORc=11). Un sub-análisis de otros co-factores nos mostró que aquellos sujetos que hicieron este cambio positivo (de más a menos calorías) fueron los hombres. Estos resultados concuerdan con otras investigaciones, lo que sugiere que el conocimiento sobre el aporte calórico influye en la decisión de compra de menús de manera positiva en universitarios.
Laporan Kasus: Hemobartonella felis pada Kucing Lokal
Authors: Purba Dody Joel , Widyastuti Sri Kayati , Anthara Made Suma
Published: November 2020

Hemobartonella felis adalah bakteri intraseluler Gram negatif yang menyerang eritrosit kucing. Pada kucing kasus ditemukan adanya pinjal (Ctenocephalides felis) yang diduga menjadi vektor dari infeksi Hemobartonella felis. Hasil pemeriksaan klinis pada kucing menunjukkan gejala demam, lemas, mukosa mata dan mulut pucat, penurunan nafsu makan dan minum, serta saat berjalan terkadang terlihat sempoyongan. Pemeriksan darah rutin menunjukkan bahwa kucing mengalami anemia makrositik hipokromik disertai dengan trombositopenia. Pada pemeriksaan preparat ulas darah ditemukan adanya bentukan seperti batang pada eritrosit kucing yang menandakan hasil positif Hemobartonella felis. Terapi yang diberikan yaitu terapi kausatif berupa pemberian antibiotik doksisiklin (5 mg/kgBB, selama 28 hari), terapi simtomatis dengan moxidectin satu tube, terapi suportif diberikan infus ringer laktat, dan pemberian vitamin cyanocobalamin, vitamin C, Fe, asam folat, dengan terapi ini diperoleh hasil yang memuaskan. Kucing sudah mulai aktif bermain, nafsu makan meningkat, warna mukosa merah muda dan suhu tubuh sudah kembali normal.
Morfometri Organ Usus Halus Kerbau Lumpur (Bubalus bubalis) di Pulau Lombok, Nusa Tenggara Barat
Authors: Santi Elysabeth Vanessa Tirta , Susari Ni Nyoman Werdi , Suatha I Ketut , Heryani Luh Gde Sri Surya
Published: November 2020

Kerbau lumpur merupakan jenis kerbau yang berada di Pulau Lombok, yang kerap dimanfaatkan daging dan tenaganya. Penelitian ini bertujuan untuk mengetahui morfometri organ usus halus (duodenum, jejenum, ileum) pada kerbau lumpur di Pulau Lombok, Nusa Tenggara Barat. Pengukuran morfometri berupa panjang, lebar, serta berat organ. Sampel penelitian diambil dari lima ekor kerbau lumpur yang berusia antara 2 - 4 tahun. Organ usus halus didapat dari tempat pemotongan hewan Kecamatan Praya Tengah, Kabupaten Lombok Tengah, Nusa Tenggara Barat. Organ tersebut kemudian ditentukan batas tiap bagiannya dimulai dari duodenum yang diawali dengan akhir pilorus abomasum, berbentuk memanjang menyerupai kurva C dilanjutkan dengan jejenum dengan bentuk bergelombang yang ditandai dengan adanya arteri mesenterika dan diakhiri dengan ileum dengan bentuk lebih lurus serta tidak terdapat penggantung. Organ diukur panjang dan lebar menggunakan pita ukur bersatuan centimeter (cm), selanjunya mengukur berat menggunakan timbangan digital bersatuan gram (g). Data yang diperoleh dianalisis dengan bantuan program Statistical Product and Service Solution (SPSS) secara deskriptif kuantitatif. Hasil pengukuran total panjang usus halus kerbau lumpur di Pulau Lombok yaitu 1.084 cm dengan panjang perbagiannya (duodenum, jejenum, dan ileum) berturut-turut yaitu 109 cm; 791,4 cm; 184,4 cm dan lebar berturut-turut yaitu 2,7 cm; 3,18 cm; dan 3,24 cm dengan rata-rata berat 3,04 kg sehingga jejenum merupakan bagian usus halus terpanjang. Nilai koefisien keragaman panjang dan lebar usus halus berkisar antara 2,53%-18,85% dimana koefisien keragaman lebar lebih besar dibandingkan koefisien keragaman panjang yang menandakan ukuran lebar usus halus lebih bervariasi.
Yerel Börülce (Vigna unguiculata (L.) Walp.) Populasyonlarının Bakla ve Danelerinin Agronomik Özelliklerinin Belirlenmesi
Authors: BİNİCİ Ali , BOZOKALFA Mehmet Kadri
Published: November 2020

Amaç: Fabaceae familyası sebzeleri arasında önemli bir yeri olan börülce insan beslenmesinde taze yaprak, taze bakla, taze dane ve kuru daneleri için yetiştirilmekte ve yüksek bitkisel protein içeriği yönünden sebze türleri arasında ilk sıralarda yer almaktadır. Farklı agro-morfolojik özelliklere sahip populasyonlar agronomik özellikleri nedeniyle yetiştiriciliğin yoğun yapıldığı yörelerde uzun yıllardan beri çiftçiler tarafından tercih edilmektedir. Bu çalışma, Türkiye’nin farklı lokasyonlarında toplanmış ve üretici koşullarında yetiştiriciliği devam eden farklı börülce genotiplerinin agronomik özelliklerinin belirlenmesi amacıyla yürütülmüştür.Materyal ve Metot: Araştırmada toplam 44 farklı börülce genotipi kullanılmış ve bu genotipler üretici ve tüketiciler açısından önemli kalite özelliklerini oluşturan taze bakla ve kuru danelerin agronomik özellikleri incelenmiştir. Bulgular: Elde edilen sonuçlar bitkisel materyali oluşturan gen havuzundaki genotipler arasında değerlendirilen bakla ve dane özellikleri yönünden yüksek düzeyde agro-morfolojik varyasyonu varlığını ortaya koymaktadır. Genotipler arasında özellikle yüksek taze bakla ve dane verimi yönünden mevcut ticari çeşitlerden çok daha üstün genotipler olduğu belirlenmiştir. Sonuç: Börülcenin taze baklaları yanında taze ve kuru danelerinin tüketilmesi, ayrıca farklı ekolojik koşullara adapte olmuş ve uzun yıllar süresinde devam eden tohum eldesi süresince tüketim tercihi göz önünde bulundurularak yapılan seleksiyonların varyabiliteyi artırdığı düşünülürken, gen havuzundaki yüksek varyasyonun umutvar nitelikteki genotiplerin seleksiyonuna katkı sağlayabileceği belirlenmiştir.
Deficiency of Mettl3 in Bladder Cancer Stem Cells inhibits Bladder Cancer Progression and Angiogenesis
Authors: Wang Ganping , Dai Yarong , Li Kang , Cheng Maosheng , Xiong Gan , Wang Xiaochen , Chen Shuang , Chen Zhi , Chen Jianwen , Xu Xiuyun , Peng Liang , Chen Demeng
Published: November 2020

Background: RNA N6-methyladenosine is a key step of post-transcriptional modulation which involves in governing gene expression. The m6A modification catalyzed by Mettl3 has been widely recognized as a critical epigenetic regulation process for tumorigenic properties in various cancer cell lines, including bladder cancer. However, the in vivo function of Mettl3 in bladder cancer remains largely unknown. Methods: Establishment of transgenic mouse model for exploring the role and mechanisms of Mettl3 in bladder cancer. Coupled global transcriptome sequencing and methylated RNA immunoprecipitation sequencing is performed to identify targets modulated by Mettl3.Results: We found that ablation of Mettl3 in bladder urothelial attenuates the oncogenesis and tumor angiogenesis of bladder cancer. In addition, conditional knockout of Mettl3 in K14+ bladder cancer stem cell population leads to inhibition of bladder cancer progression. And deletion of Mettl3 leads to the suppression of TEK and VEGF-A through reduced abundance of m6A peaks on specific region. Conclusions: Taken together, Mettl3-mediated m6A modification is required for the activation of TEK-VEGF-A-mediated tumor progression and angiogenesis. Our findings may provide theoretical basis for bladder cancer treatment targeting Mettl3.
Superhydrophobic Ceramic Hollow Fibre Membranes for Trapping Carbon Dioxide from Natural Gas Via the Membrane Contactor System
Authors: Saud Iltifat Hameed , Othman Mohd Hafiz Dzarfan , Hubadillah Siti Khadijah , Aziz Mohd Haiqal Abd , Pauzan Mohammad Arif Budiman , Ismail Ahmad Fauzi , Jaafar Juhana , Rahman Mukhlis A
Published: November 2020

The membrane contactor system is one of the most important technologies to trap CO2 from natural gas. To apply this technology, hollow fibre membranes with a superhydrophobic surface must be used. Three types of fluoroalkyl silane (FAS) molecules [C6, C8, C10] at different immersion times (6, 24, 48,72 h) were used to modify kaolin hollow fiber membrane into the superhydrophobic property to capture CO2 from natural gas via contacting gas-liquid system. The kaolin was chosen due to its abundantly available at an affordable price as well as a high amount of groups hydroxyl (OH) in the surface which easily reacts with (FAS) during the grafting process. Superhydrophobicity was distinguished by Fourier transforms infrared (FTIR), scanning electron microscope (SEM), liquid entry pressure of water (LEPw) measurement, and contact angle (CA). The chosen superhydrophobic kaolin membrane was tested for carbon dioxide (CO2) capture via the membrane contactor system. With increasing time of immersion, the hydrophobicity phenomena raised gradually until superhydrophobicity property was obtained. It was proved that the 48 hours was sufficient time to obtain the desired superhydrophobicity property to avoid wetting pores of the membranes. Besides, the perfect type of FAS for separation CO2 was C8 based on sufficient LEPw and contact angle. The reduction of pH was observed after testing the performance of using membrane contactor to separate CO2 by water as absorbent where pH value was reduced from 6.6 to 4.3 within one hour, which concludes that the success of the gas-liquid system to remove CO2 from natural gas.
CMV Infection, CD19+ B Cell Depletion, and Lymphopenia as Predictors for Unexpected Admission in the Institutionalized Elderly
Authors: Chen LiangYu , Hwang An-Chun , Huang Chung-Yu , Chen Liang-Kung , Wang Fu-Der , Chan Yu-Jiun
Published: November 2020

Background: Chronic infections played a detrimental role on health outcomes in the aged population, and had complex associations with lymphocyte subsets distribution. Our study aimed to explore the predictive roles of chronic infections, lymphopenia, and lymphocyte subsets on unexpected admission and mortality in the institutionalized elderly during 3 year follow-up period.Results: There were 163 participants enrolled prospectively with median age of 87.3 years (IQR: 83.1-90.2), male of 88.3%, and being followed for 156.4 weeks (IQR: 136.9-156.4 weeks). The unexpected admission and mortality rates were 55.2% and 24.5% respectively. The Cox proportional hazards models demonstrated the 3rd quartile of cytomegalovirus IgG (OR: 3.26, 95% CI: 1.55- 6.84), lymphopenia (OR: 2.85, 95% CI: 1.2- 6.74), and 1st quartile of CD19+ B cell count (OR: 2.84, 95% CI: 1.29- 6.25) predicted elevated risks of unexpected admission after adjusting for potential confounders; while the 3rd quartile of CD3+ T cell indicated a reduced risk of mortality (OR: 0.19, 95% CI: 0.05- 0.71). Negative association between CMV IgG and CD19+ B cell count suggested that CMV infection might lead to B cell depletion rather than clonal expansion.Conclusions: CMV infection, lymphopenia, and CD19+ B cell depletion might predict greater risk of unexpected admission, while more CD3+ T cell would suggest a reduced risk of mortality among the oldest-old population. A non-linear or U-shaped relationship was supposed between health outcomes and CMV infection, CD3+ T cell, or CD19+ B cell counts. Further prospective studies with more participants included would be needed to elucidate above findings.
Radiotherapy Dosimetry Audits in Taiwan Hospitals
Authors: Shiau An-Cheng , Hsu Shih-Ming , Huang Pei-Yun , Chen Chiu-Ping , Huang Yi-Ting , Lien Ke-Yu , Chen Chin-Ping , Fan Shung-Hwei , Jeng Shiu-Chen , Chen Ho-Hsing , Liang Ji-An
Published: November 2020

Purpose: This study examines the practice of the regulation of Standards for Medical Exposure Quality Assurance (SMEQA) in Taiwan based on on-site quality audit for radiation therapy systems from 2016 to 2019. Methods and Materials: about 81 radiation therapy departments, 141 medical linear accelerators, 9 gamma knifes, 34 high dose rate brachytherapy systems, 20 Tomotherapys and 6 Cyberknives were audited yearly. The inspection was implemented in two stages. Data collection and analysis for each institute’s documents including QA operating procedure, ion chamber and electrometer calibration reports, and a questionnaire relating to machine type and staffing, were requested first and reviewed by specially trained auditors. On-site measurements of SMEQA core items, including beam output, beam profile and energy constancy for external beam therapy systems, and the source strength, positioning and timer accuracy for brachytherapy systems were audited second. More than 300 photon beams were measured from linacs, Gamma knives, Cyberknives and Tomotherapys, and more than 400 electron beams from linacs each year.Results: The radiation treatment resource is about 8.9 therapy machines or 7.5 MV/MeV/ion beam therapy machines per million population, respectively, and there are on average about 1.20 medical physicists per radiation therapy unit in Taiwan. There were more than 78% and 75% of photon and electron beams respectively from linacs with deviations measured to the stated reference-point dose within 1.0%. Photon beams have lower beam quality measurement deviations than electron beams, and more than 90% of photon beams from linacs were within 1.0%. Including in-plane and cross-plane measurements, more than 90% and 85% of photon and electron beams respectively with flatness consistency within 1.0%. Beam symmetry as an absolute value has more than 75% of measurements within 1.0%. All audit measurements in this study were within the SMEQA acceptance criteria.Conclusions: On-site machine QA audits have been implemented from 2016 to 2019 for all radiation therapy units each year. The measurement results have shown a high quality machine performance in Taiwan.