bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of the strengthening effects of Nb, V, and Ti on the mechanical properties of 20MnSi low-alloy steel
Authors: Zhang Qingxiao , Yuan Qing , Qiao Wenwei , Chen Guanghui , Xu Guang 
Published: May 2020

Abstract
Three alloys, containing niobium, vanadium and titanium, respectively, were refined and the strengthening effect attained after adding them individually in a 20MnSi low-alloy rebar steel was investigated. The results show that the strengthening effect attained due to the addition of niobium is the best, whereas that due to the addition of titanium is the poorest. Grain refinement and precipitation strengthening are the main strengthening mechanisms observed in niobium-steel and vanadium-steel, whereas only precipitation strengthening is observed in titanium-steel. Moreover, the average grain size of niobium-steel is the smallest among the four types of steels, while the size of ferrite and pearlite microstructures show almost no obvious change as compared to the base steel in the case of titanium-steel. Furthermore, the volume fractions of ferrite and pearlite in the four tested steels have no noticeable change.
Effect of NbC on the microstructure, mechanical properties, and oxidation resistance of Ti(C,N)-based cermets
Authors: Lin Fuping , Du Yong , Lv Jian , Zhang Cong , Liu Xin , Tan Zhuopeng 
Published: May 2020

Abstract
A comprehensive investigation of the effects of NbC on the microstructure and properties of Ti(C,N)-based cermets has been performed. Cermet samples were obtained via liquid-phase sintering under the guidance of thermodynamic calculations, and the amount of NbC was varied. The results showed that when the NbC content exceeded 12 wt.%, a hard phase with an NbC core appeared due to the lattice mismatch between the core and rim. NbC was not completely consumed by dissolution and precipitation, causing it to form a residual NbC core. As the NbC content increased, the grain size was refined, and the hardness of the cermet increased, but the fracture toughness decreased. When NbC was introduced into the cermet, a relatively dense protective layer was formed on the surface during oxidation, which restricted the diffusion of oxygen and improved the oxidation resistance of the cermet.
"Las Comunidades autónomas españolas y América Latina: una nueva dimensión de la conexión iberoamericana" (Recensión)
Authors: Rodero Franganillo Adolfo 
Published: May 2020

Recensión de la obra de: FRERES, C. y SANZ, A. (Ed.) (2002), Las Comunidades autónomas españolas y América Latina: una nueva dimensión de la conexión iberoamericana, Madrid, Ed. Sociedad Editorial Síntesis, 410 págs.
Isolation and Characterization of Antibiotic-Resistant Bacteria from Urinary Tract Infection on Diabetic Mellitus Patients
Authors: Kumar M. , Prince L. 
Published: May 2020

Diabetes mellitus is a chronic disease-which occurs when the pancreas does not produce enough insulin, or when the body cannot effectively use the insulin it produces. This leads to an increased concentration of glucose in the blood (hyperglycemia). Diabetes mellitus is one of the most challenging health problems in India. The present study was investigated for isolation and characterization of antibiotic-resistant bacteria from urinary tract infection on diabetic mellitus patients. The 118 diabetic urine samples were collected and UTI bacteria using HiChrome UTI Agar was isolated. The diabetic UTI isolates were confirmed as Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, Staphylococcus saprophyticus, Proteus mirabilis and Klebsiella aerogenes based on morphological and biochemical characteristics. Our study identified that almost all the bacteria were highly sensitive to Cefoperazone/Sulbactam (75/30 mcg), Gentamicin (10 mcg), Meropenem (30 mcg), Piperacillin/Tazobactam (100/10 mcg) and Nitrofurantoin (100 mcg) antibiotics. Interestingly Klebsiella aerogenes alone was found to be more resistant to the entire antibiotics used in this study. The antibiotic resistant Klebsiella aerogenes is one of the biggest treats to human health, antibiotic resistance occurs naturally, but misuse of antibiotics in humans is accelerating the process.
Volumetric Properties of Secondary Butanol and Tertiary Butanol in Water and Aqueous Micellar Systems of Sodium Dodecyl Sulphate
Authors: Alauddin J. , Pande S. , Mohanta S. C. , Alauddin M. 
Published: May 2020

The apparent molal volumes of sec-butanol and t-butanol in water and in aqueous micellar system of sodium dodecyl sulphate have been determined from density measurements at different surfactant concentrations and temperatures. The partial molal volumes of the alcohols in aqueous micellar system at infinite dilution, V20 (mean, mic) were obtained from apparent molal volume data and compared with the corresponding values in aqueous solvent, V20 (mean, aq). The standard partial molal expansibilities, E20 (mean) of the alcohols were evaluated from V20 (mean) data at various temperatures. The transfer apparent molal volumes, ∆φtr0 for the alcohols from water to surfactant-water system are determined from apparent molal volume data. The sign and magnitude of these parameters are used to analyze the location of the solubilizate (alcohols) in the micellar system and the nature of interactions between alcohols and the micellar aggregates.
Desafios metodológicos da pesquisa “jovem e consumo midiático em tempos de convergência” no “Brasil profundo”
Authors: Felizola Matheus Pereira Mattos , Gomes Vitor José Braga Mota , Marques Jane Aparecida 
Published: May 2020

Resumo: O objetivo é apresentar os caminhos metodológicos do projeto “Jovem e Consumo Midiático em Tempos de Convergência” durante os anos de 2015 a 2020. As experiências científicas perpassaram um processo evolutivo que foi iniciado com pesquisas anteriores até o momento desta, e envolveu pesquisadores (docentes e discentes de pós-graduação e graduação) da Universidade Federal de Sergipe (UFS), da Universidade Federal do Rio Grande do Sul (UFRGS) e da Universidade Federal do Pará (UFPA). A pesquisa teve inspiração etnográfica, seguindo a proposição de Angrosino (2009) e Flick (2009). Dentre os resultados, percebemos como esses jovens são bastante ativos nas mídias sociais, especialmente através dos dispositivos móveis, apesar da pequena cobertura dos serviços de telefonia; além da centralidade do Facebook e do WhatsApp para esse público ao consumir conteúdos imagéticos, audiovisuais e textuais, e fazer a interlocução nas suas redes sociais para troca de mensagens, e pelas performances adotadas em seus perfis.Palavras-chave: Metodologia; Etnografia; Pesquisa Qualitativa; Pesquisa Quantitativa. Methodological challenges of the research “youth and media consumption in times of convergence in “deep Brazil”Abstract: The purpose of the article is to present the methodological paths of the project “Youth and Media Consumption in Times of Convergence”, during the years 2015 to 2020. The scientific experiences have passed through an evolutionary process that started with previous research until the moment of this one, which involves researchers (teachers, graduate and undergraduate students) at the Federal University of Sergipe (UFS), Federal University of Rio Grande do Sul (UFRGS) and Federal University of Pará (UFPA). The research had ethnographic inspiration, following the proposition of Angrosino (2009) and Flick (2009). Among the results, we see how these young people are very active on social media, especially through mobile devices, despite the small coverage of telephone services; in addition to the centrality of Facebook and WhatsApp for this audience by consuming imagery, audiovisual and textual content and making interlocution with their networks through messages and in the performances adopted in their created profiles.Keywords: Methodology; Ethnography; Qualitative Research; Quantitative Research.
A imagem como ferramenta na pesquisa qualitativa em saúde: relato de experiência
Authors: Fonseca Elaine De Oliveira Souza , Pedreira Larissa Chaves , Rodrigues Ana Isabel , Pereira Roberta Góes , Gomes Nildete Pereira 
Published: May 2020

Resumo: A imagem é uma relevante ferramenta em pesquisas qualitativas. Este trabalho objetivou descrever a experiência do uso da imagem como método de coleta de dados por meio da Técnica de Associação Livre de Palavras, em um estudo sobre cuidados em saúde bucal de idosos hospitalizados. A pesquisa ocorreu em um hospital universitário situado em Salvador, Bahia, Brasil, tendo a equipe de enfermagem como colaboradora do estudo. Por se tratar de pesquisa com seres humanos, todos os cuidados éticos foram respeitados. O relato reflete sobre a utilização de uma imagem fixa na coleta de dados, que não foi idealmente representativa aos colaboradores, necessitando de adaptação na metodologia do trabalho. Conclui-se que a utilização da imagem como recurso em pesquisas na saúde permite maior aproximação aos sujeitos da pesquisa, alcançando mais profundamente os seus pensamentos e manifestações.Palavras-chave: Pesquisa qualitativa; Imagem; Saúde bucal; Enfermagem. Image as a tool in qualitative research in health: experience reportAbstract: Image is an relevant tool in qualitative research. This study aims to describe the experience of using the image as a method of data collection through the Free Word Association Technique in a research on oral health care of hospitalized elderly patients. The research took place in a university hospital located in Salvador, Bahia, Brazil, with the nursing team as collaborator of the study. Due to this research is related to human beings, all ethical caution was respected. The report reflects on the use of a fixed image in the data collection, which was not ideally representative of the researched population, necessitating adaptation in the work methodology. It is concluded that the use of the image as a resource in health research allows a closer approximation to the subjects of the research, reaching deeper their thoughts and manifestation.Keywords: Qualitative research; Image; Oral health; Nursing.
Preceptoria na residência médica em hospital público de emergência além das atividades prescritas: relato por meio de incidentes críticos
Authors: Wanderley Camille Lemos Cavalcanti , Vieira Maria De Lourdes Fonseca , Vasconcelos Maria Viviane Lisboa de 
Published: May 2020

Resumo: As Diretrizes Curriculares Nacionais da Medicina enfatizam a lacuna existente no ensino de emergência e a especificidade da preceptoria nesse cenário. Este estudo analisa a influência dos fatores psicossociais do trabalho no fazer pedagógico do preceptor, numa abordagem qualitativa, na modalidade estudo de caso. Foi desenvolvido em hospital público de emergência do nordeste do Brasil. Participaram cinco preceptores de Residência Médica, submetidos à entrevista individual através da técnica do incidente crítico. Os dados foram submetidos à análise de conteúdo, a partir da qual foram identificados os fatores psicossociais inerentes ao trabalhador e internos ao trabalho que influenciam a preceptoria. As evidências destacam ainda a reduzida formação pedagógica e a imobilização do poder de agir em competência dos preceptores, sendo necessário o fortalecimento da formação pedagógica e da identidade profissional. Ressalta-se a necessidade de problematizar o cotidiano do processo de trabalho em saúde para transformar a formação de quem forma.Palavras-chave: Preceptoria; Residência médica; Análise e Desempenho de Tarefa; Hospital de emergência; Clínica da Atividade. Medical residency preceptorship at a public emergency hospital beyond prescribed activities: report of critical incidentesAbstract: The National Curricular Guidelines of Medicine emphasize the gap in emergency teaching and the specificity of the role of preceptor in this setting. The present study analyzes the influence of the psychosocial factors of work on the pedagogic performance of preceptors, using a qualitative approach and a case study. The research was conducted at a public emergency hospital in Northeastern Brazil. The five preceptors from the medical residency that participated were interviewed individually using the critical incident technique. The data were submitted to content analysis and the psychosocial factors inherent to the worker and specifically to the work that influences preceptors were identified. The evidence highlights insufficient pedagogic training and the lack of action on behalf of preceptors, demonstrating the need for strengthening pedagogical training and professional identity. It is important to investigate the daily work process in health, in order to transform training procedures.Keywords: Preceptorship; Medical residency; Task and performance analysis; Emergency hospital; Activity clinic.
KRONİK OBSTRÜKTİF AKCİĞER HASTALIĞINDA FENOTİPLERE GÖRE KAN BİYOBELİRTEÇLERİNİN KARŞILAŞTIRILMASI
Authors: MUTLU Pınar , AYLANÇ Nilüfer , MİRİCİ N.arzu , İLÇİN GÜVEN Merve 
Published: May 2020

Amaç: Kronik
obstrüktif akciğer hastalığı (KOAH)'nda hava yolu inflamasyonu, biyobelirteçler
kullanılarak ölçülebilir. Bu çalışma, sistemik inflamasyonun biyobelirteçlerini
kullanarak KOAH'ın heterojenliğini araştırmak için yapılmıştır.Gereç ve Yöntem: 19
KOAH'lı hastanın toraks bilgisayar tomografisi amfizem baskın ve kronik bronşit
baskın olmasına göre değerlendirildi ve kan biyobelirteçleriyle
karşılaştırıldı.Bulgular: Çalışma
grubunun yaş ortalaması 72,1±8,0 yıldı. KOAH fenotipiyle kan biyobelirteçleri
arasında bir fark saptanmazken, amfizem baskın ile kronik bronşit arasında, toraks
anteroposterior (AP) ve transvers çap açısından istatistiksel olarak anlamlı
fark saptanmıştır. AP çap/transvers çap oranı ile TNF-alfa arasında pozitif
yönlü güçlü istatistiksel olarak anlamlı korelasyon saptandı.

Sonuç: Yaygın kronik
bronşitli hastalar ile yaygın pulmoner amfizemi olan hastalar arasında inflamatuar
biyobelirteçler açısından anlamlı fark bulunmaması, bu iki klinik ve
fonksiyonel fenotipin benzer inflamatuar bir paterne sahip olabileceğini
düşündürmüştür. Sonuç olarak, KOAH'ın fenotipik ayrımı ya da tedaviye yanıtın
değerlendirilmesi için biyobelirteçlerin kullanımına büyük bir ilgi vardır.
Sonuçlarımızın, daha büyük klinik çalışmaların planlanmasında fayda
sağlayacağını düşünüyoruz.
OVER KANSERİ HÜCRELERİNDE PRİMA-1 Met TEDAVİSİNE YANIT OLARAK DEĞİŞEN miRNA EKSPRESYON ANALİZİ
Authors: İMİR Nilüfer , AYDEMİR Esra , ŞİMŞEK Ece 
Published: May 2020

Tümör hücrelerinde p53
fonksiyonunun restorasyonu, over kanseri tedavisinde çekici bir strateji olacağı
düşünülmektedir, çünkü p53 mutasyonlarının over kanserlerinde görülme
sıklığı %50-60 arasındadır. Küçük
molekül Prima-1Met'in, p53'ün tümör baskılama fonksiyonunu geri
kazandığı ve insan tümör hücrelerinde hücre
büyümesini inhibe ettiği ve apoptozu indüklediği gösterilmiştir. MikroRNA'lar hem transkripsiyonel hem de translasyonel
seviyelerde gen ekspresyonunu düzenler ve hücre proliferasyonu, farklılaşma ve
hematopoez gibi çok çeşitli fizyolojik ve biyolojik süreçlerde etki yapar.
Epitelyal over kanserinde yapılan çok sayıdaki miRNA profillemesi
çalışmalarında, kemoterapi direnci ve hastalık progresyonu ile ilişkili
miRNA'lar tanımlanmıştır, fakat, Prima-1Met'e yanıt olarak
miRNA'ların tutulumu hakkında çok az şey bilinmektedir. Bu çalışmada, apoptotik
etkisi olduğu bilinen Prima-1Met ile
muamele edilmiş over kanseri hücre hatlarında, bu ilaca yanıt olarak
ekspresyonu değişen miRNA’ların belirlenmesini hedeflendi ve bunun için ilaç
verilen hücre hatlarında hem kanser hem de apoptosis yolaklarını hedefleyen
miRNA’ların ekspresyonları miScript PCR array ile belirlenip analiz edilmiştir.
Analiz sonucunda, her iki hücre hattında da hem over kanseri hem de
apoptosisle ilişkili olarak Prima-1Metuygulamasıyla
ekspresyonu artan miRNA’lar; miRNA-1, miRNA-134, miRNA-141, miRNA-143,
miRNA-145, miRNA-204, miRNA-205, miRNA-214, miRNA-29a ve miRNA-29c olarak
belirlenmiştir. Ekspresyonu azalan miRNA’lar ise miRNA-21, miRNA-221 ve
miRNA-222 olarak tespit edilmiştir. Bu çalışma Prima-1Met indüklü
apoptosisin moleküler mekanizmasının aydınlatılması için bir temel
oluşturmaktadır.
İMPLANT CERRAHİSİNDE HAYATI TEHDİT EDEN HEMATOM: OLGU SUNUMU VE LİTERATÜR TARAMASI
Authors: ÜLKER Ömer , DEMİRBAŞ Ahmet Emin 
Published: May 2020

Dental implantlar
günümüzde dişsiz çenelerde sıklıkla ve başarılı bir şekilde uygulanan güncel
bir tedavi yöntemidir. Maksillo-mandibular alanlarda uygulanan bu tedavi yöntemi
özellikle antikoagülan ilaç kullanımı olan hastalarda ciddi komplikasyonların
meydana gelmesine sebep olabilir. Bu komplikasyonlardan en önemlisi majör
cerrahi işlemler sırasında veya sonrasında görülen hayatı tehdit eden
kanamadır. Bu tip kanamalar sonrasında ağız tabanı ve çevresinde hematom
gelişmesi ile hava yolunun tam veya kısmi olarak tıkanmasına kadar giden ciddi
problemlere yol açabilir. Sonuçta hastaların hava yolu güvenliğinin sağlanması
için acil olarak entübe edilmesi ya da trakeotomi yapılması gerekmektedir. Bu vaka
raporunda, 65 yaşında kalp kapak replasmanı nedeniyle varfarin sodyum kullanan
erkek hasta protetik tedavi için kliniğimize başvurdu. Lokal anestezi altında
çoklu diş çekimlerini takiben maksilla ve mandibulaya 9 adet implant yerleştirildi.
Cerrahi işlemden bir gün sonra görülen yaygın ve diffüz tipte hematom yaklaşık
on gün sürdü. Hastanın kan hemoglobin
değerindeki ani düşüş nedeniyle iki defa acil olarak kan replasmanı yapıldı.
Kanama kontrolü için lokal hemostatik ajanlar ile bimanuel kompresyon ve
elektrokoter kullanıldı. İyileşme tamamlandıktan dört ay sonra hastanın
protezleri yapılarak tedavisi sorunsuz bitirildi.
ASSESSMENT OF FINANCIAL EFFICIENCY OF PLANT MODEL ADAPTATION IN SALINITY ZONES IN THANH PHU DISTRICT, BEN TRE PROVINCE
Authors: Ta Phieu Qui , Lam Hung Thai 
Published: May 2020

This research was conducted to evaluate the financial efficiency of some crop production models for adaptation in salinity zones in Thanh Phu District, Ben Tre Province. This research is imperative to offer effective sustainable production solutions that are suitable to the current situation of the salinity zone. The total number of samples surveyed at the households were 136 using the convenient sampling method. The multivariate regression model has been applied to determine the factors affecting financial performance. The analysis shows that there is a linear relationship between profitability and the dependent variables of the farmerswho are farming the Shrimp - Rice; Coconut; Mango models in Thanh Phu District with at least one of the factors being an independent variable included in the model; and the independent variables selected in the model are quite high R2 = 0,648; R2 = 0,745; R2 = 0,474 respectively. Variance inflation factor (VIF) was within the limit (VIF <10). Factors such as the number of laborers involved in the farm production, with technical sciencetraining, farming experience and seed origin knowledge were identified as having a majorimpact on the various farms income.
TRANSFORMATIONS IN SOCIAL – CULTURAL LIFE OF THE CO TU ETHNIC GROUP IN QUANG NAM PROVINCE NOWADAYS
Authors: Nguyen Dung Van 
Published: May 2020

Social – cultural transformations are the changes of element, structure and social and cultural value by politicaland economic factors. This is common development rule of any ethnic group. Currently, the traditional social – cultural life of Co Tu ethnic group in Quang Nam Province has been gradually changed due to different factors. This study applied, ethnographic fieldwork, interdisciplinary method to clarify the transformations in the social – cultural life of Co Tu ethnic group in Quang Nam Province through costumes, residence and housing, folk art and social organization.
A Formação Profissional em Lazer na Cidade de Belém e o Olhar Discente
Authors: Montenegro Gustavo Maneschy 
Published: May 2020

Este artigo objetiva analisar o entendimento de lazer sustentado pelos acadêmicos que cursaram, em 2011, o último semestre de Educação Física nas Universidades Públicas da Cidade de Belém e identificar se as disciplinas sobre lazer, frequentadas na graduação, atenderam as expectativas profissionais dos alunos. Participaram da pesquisa 12 discentes, sendo 7 estudantes da Universidade do Estado do Pará – UEPA e 5 da Universidade Federal do Pará – UFPA. As falas produzidas pelos acadêmicos foram capturadas a partir de entrevista semiestruturada com posterior análise por meio da Técnica de Elaboração e Análise de Unidades de Significado. Com esta pesquisa, constatou-se que 58,33% dos alunos apresentaram um entendimento funcionalista do lazer e 25% indicou a necessidade de ampliação de discussões sobre o lazer no currículo das instituições investigadas.
Teoría y retos de la educación
Authors: Naranjo Sánchez Bertha Alice 
Published: May 2020

Este número de la revista Boletín Redipe aborda, por un lado, las reflexiones mesoaxiológicas del profesor Touriñán con relación al grado de penetración de la teoría de la educación en la Carrera de Pedagogía. Por otra parte está el tema de los retos de la educación, en el cual confluyen los demás artículos de investigación, incluido aquel: indagaciones que derivan en la formulación de retos en materia metodológica, didáctica, formativa, epistemológica, curricular, pedagógica y digital. Se reseña a continuación uno y otros trabajos.
Alcance de ‘teoría de la educación’ en la carrera de pedagogía
Authors: Touriñán López José Manuel 
Published: May 2020

El foco de este artículo no es la educación como tarea o actividad. Tampoco es el objetivo de este artículo responder a la pregunta cómo educar nuestro modo de conocer y pensar (Cognitive Education or Knowledge Education or Education of Knowledge). El objetivo de este artículo está integrado en el tópico “la educación como objeto de conocimiento” (educación como disciplina y como conocimiento de la educación: “Education as a discipline”, Education Knowledge or Knowledge of Education). De manera específica, el objetivo de este artículo es entender el lugar de la teoría dentro del conocimiento de la educación, su diversidad como disciplina y como investigación.
Es posible realizar ese objetivo, porque la teoría de la educación es conocimiento de la educación; hay una relación entre teoría y educación por medio del conocimiento de la educación. Cada modo de entender el conocimiento de la educación, permite entender el significado de la teoría en relación con la ‘educación’. El objetivo en este artículo es integrar las diversas posiciones que existen en la pluralidad semántica del concepto de “teoría” en relación con “educación”, como disciplina y asignatura de plan de estudios y como investigación.
Analizando a los estudiosos de Leonidas Proaño
Authors: Ramos Rómulo Arteño , Carretero Poblete Pedro Antonio , Vallejo Villalva Mónica Del Pilar 
Published: May 2020

El ser humano a lo largo de su vida deja huellas de su accionar, sean estas positivas o negativas. En estas etapas de la vida muchos de ellos han pasado desapercibidos, de la misma manera hay personas que por sus actos han dejado rastros imborrables en beneficio de la sociedad, tal es el caso de Monseñor Leonidas Proaño. En el presente artículo se hace un recorrido de su accionar en su misión de Obispo de Riobamba, donde a pesar de haber transcurrido 109 años de su natalicio, su pensamiento y obras siguen latentes, no solo en la práctica viva del evangelio, sino en la enseñanza del valor, del respeto a la dignidad del ser humano, con un gran sentido de humildad, solidaridad e identidad, siendo parte de nuestra memoria, nuestras vidas y nuestros corazones. Mediante el análisis de textos y entrevistas demostraremos por qué se lo denomina el “Obispo de los pobres”. En el análisis realizado se intenta captar el interés para que interesados en conocer y difundir su pensamiento tengan como herramienta de consulta.