bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of red ceramic residues as pigments in matrices based on white Portland cement
Authors: Dias Letícia Andreolli , Birck Fernanda Boll , Kaefer Lucas , Arnold Daiana Cristina Metz , de Vargas Alexandre Silva
Published: July 2021

ABSTRACT: The present study evaluated the use of red ceramic residues (RCR) as pigments in matrices based on White Portland cement. Five mortars were prepared for the present study: control mortar (M0), at 1:2,3 ratio (cement: sand) and water/cement ratio of 0.60, other four mortars were prepared containing RCR in 10% (M10), 20% (M20), 50% (M50), 100% (M100) of volume in replace to the sand. Colorimetric tests indicated a significant increase in the coloring, due to the increase of the RCR used. Tests of resistance to compression strength indicated a significant increase in the results as there was an increase in the substitution content of the sand by RCR. In the flexural tensile strength was no significant influence for contents of up to 50%. Therefore, the RCR showed potential as a pigmentation product and can contribute to the increase in compressive strength in Portland cement-based matrices.
Рецензия на книгу «”Дети девяностых” в современной Российской Арктике»
Authors: Гаврилова Софья Андреевна
Published: July 2021

Рецензия
Соборы в пустыне или опорные базы? Типология населенных пунктов Российской Арктики по характеру взаимосвязи с окружающей территорией
Authors: Гончаров Руслан Вячеславович , Данькин Максим Андреевич , Замятина Надежда Юрьевна , Молодцова Варвара Александровна
Published: July 2021

Впервые разработана типология населенных пунктов Арктической зоны Российской Федерации с численностью населения более 500 человек. Типология основана на оценке характера связи населенных пунктов с окружающей территорией. В силу недостатка статистических данных в основу работы положены косвенные количественные и качественные показатели.

В их числе особенности транспортно-географического положения, место населенного пункта в системе расселения, потенциал развития добывающей промышленности, качественные параметры культурно-досуговой сферы, характеристика сферы высшего образования как драйвера инновационного развития, а также индекс дискомфортности окружающей среды как фоновый фактор, ограничивающий потенциал социально-экономического развития поселений. В результате анализа были выделены восемь типов арктических населенных пунктов. Основу системы расселения составляют опорные населенные пункты, выполняющие функции центров обслуживания арктических территорий разного масштаба (ключевые многофункциональные центры): арктические столицы (1) и арктические субцентры (2). В зоне влияния более крупных городов находятся населенные пункты субпериферии (3) и привилегированной периферии (4), обладающие относительно хорошей транспортной доступностью и насыщенной сферой услуг, а также «обделенной» периферии (5). К последней относятся города и поселки, хотя и расположенные на транспортных путях, но отличающиеся низким качеством среды (из-за небольшого спектра доступных в них услуг для таких населенных пунктов уместно название «обделенной» периферии, в функциональном отношении это в большинстве классические рабочие поселки при том или ином предприятии). В удаленных и преимущественно бездорожных районах Арктики находятся удаленные субрегиональные центры (6) — небольшие по численности населения города и поселки, предоставляющие населению окружающей территории (как правило, в масштабе одного или нескольких муниципальных районов) минимально необходимый набор услуг, который важен с точки зрения обеспечения элементарной базы хозяйственного освоения. Также выделены поселкиизоляты в районах реализации ресурсных проектов (7) и автономные поселки-изоляты (8). Разработанная типология позволяет предварительно оценить перспективы социально-экономического развития, сильные и слабые стороны большинства населенных пунктов Российской Арктики. При этом конкретные управленческие решения, безусловно, должны приниматься по результатам дополнительных экспертных оценок и обсуждения с местными сообществами.
CERRAHİ REZEKSİYON YAPILAN KÜÇÜK HÜCRELİ DIŞI AKCİĞER KANSERLİ KADIN HASTALARDA SAĞKALIMA ETKİ EDEN PROGNOSTİK FAKTÖRLER
Authors: AKER Cemal , SEZEN Celal Buğra , DOGRU Mustafa Vedat , DEMİRKOL Ece Yasemin , ERDUHAN Semih , ERK Melek , SÖNMEZOĞLU Yaşar , SAYDAM Özkan , CANSEVER Levent , METİN Muzaffer
Published: July 2021

Amaç

Bu çalışmadaki amacımız, küçük hücreli dışı akciğer

kanseri (KHDAK) nedeniyle rezeksiyon uygulanmış

hastalarda prognostik faktörlerin cinsiyete bağlı olarak

etkilerinin ve kadınlarda sağkalıma etki eden faktörlerin

literatür eşliğinde değerlendirilmesidir.

Gereç ve Yöntem

Çalışmaya Ocak 2007-Aralık 2018 yılları arasında

hastanemizde KHDAK nedeniyle akciğer rezeksiyonu

uygulanmış hastalar dahil edilmiştir.1491 hasta çalışmaya

dahil edilmiştir.

Bulgular

Hastaların ortalama yaşı 60,0±8,41 (aralık:26-84)

yıl idi. 1324 (%88,8) erkek hasta, 167 (%11,2) kadın

hasta çalışmada mevcuttu. 406 (%27,2) hastaya

pnömonektomi, 1077 (%72,2) hastaya lobektomi ve 8

hastaya (%0,5) segmentektomi yapılmıştır. Ortalama

5 yıllık sağkalım süresi % 57.5 idi. Çalışmada kadın

hastaların 5 yıllık sağkalım oranı %66,8 iken erkeklerde

%56,4 idi (p=0.005). pN2 durumu değerlendirildiğinde

5 yıllık sağkalım oranı %34,3 iken, pN0 olan

hastalarda sağkalım oranı %64,1 olarak saptanmıştır(

p
Prognostic significance of CD204 and IDO1 expression in esophageal tumors
Authors: Kovaleva O. V. , Rashidova O. V. , Mochalnikova V. V. , Samoilova D. V. , Podlesnaya P. A. , Gratchev A. N.
Published: July 2021

Introduction. Cancer of the esophagus ranks sixth in mortality among malignant neoplastic diseases. To understand the molecular mechanisms of its progression, it is necessary to study not only tumor cells directly, but also cells of the microenvironment. In this work, we studied tumor-associated macrophages and their different phenotypes using membrane protein, indoleamine 2,3‑dioxygenase-1 (IDO1) as a marker for type 1 macrophages and macrophage scavenger receptor (CD204) as a marker for type 2 macrophages.

The objective of this work was to study the expression of IDO1 and CD204 in tumors of squamous cell carcinoma of the esophagus and to assess its prognostic value.

Materials and methods. The study included tumor samples obtained from 48 patients with squamous cell carcinoma of the esophagus. The expression of CD204 and IDO1 was assessed by immunohistochemistry. Survival analysis was carried out by constructing survival curves using the Kaplan–Meier method. Comparison of the significance of differences was performed using the logarithmic rank test. Differences were considered statistically significant at p <0.05.

Results. We analyzed the expression of CD204 and IDO1 in esophageal squamous cell carcinoma tumors. Expression of CD204 was detected in stromal macrophages in 100 % of cases and was not detected in tumor cells. We have shown that in esophageal cancer, IDO1 is expressed in both stromal and tumor cells. In tumor cells, the expression of IDO1 was found in 44 % of the samples, in stromal cells, IDO1 was expressed in 92 % of cases. No association with clinical and morphological characteristics was observed for CD204 in stromal cells and IDO1 in tumor cells. For IDO1 expressed in stromal cells, an association with the stage of the disease (p = 0.0450) and the presence of regional metastases (p = 0.0279) was observed. Survival analysis showed that CD204 is a marker of a favorable prognosis for esophageal cancer (hazard ratio 0.455, p = 0.0419).

Conclusion. This study has shown that the expression of IDO1 in the tumor stroma is associated with more favorable clinical characteristics. It has also been shown that an increased content of CD204+ macrophages is a marker of a good prognosis for esophageal cancer.
Implementation of KOHA Integrated Library Management System in Wollega University Main Library, Nekemte, Ethiopia: A Study
Authors: Kantappa Niranjana , Desta Tolessa , Paul M. , Vijaya Kumar N.
Published: July 2021

KOHA is widely used library automation software in the world with provisions for all library operations. This paper examines the implementation of Koha in Wollega University Library the challenges faced in the implementation of Koha and provides solutions to some of the challenges faced. This paper aims to elaborate the method of installation of KohaKoha, steps for data migration from Excel to KOHA and upgrading process of KOHA version from 17.05 to 19.05.05. This is a case study conducted at Wollega University, Nekemte. The paper identifies several issues concerning data migration within a local scenario and elaborates how Koha software installed and customised for university needs. The lesson learnt and the experience gained would help in similar exercises elsewhere.
Role of Information and Library Network (INFLIBNET) Centre in Online Education during CORONA Period
Authors: Kabra Neelam , Gupta Dinesh K. , Kumar Vijendra
Published: July 2021

The role and sphere of online education is growing at all levels of education. The outbreak of COVID-19 has put on hold the classroom education as students are away from campuses. Online education is the only method to continue teaching-learning during the present time. The Ministry of Human Resources and Development (MHRD), Government of India and the University Grants Commission (UGC) have taken many steps to implement and popularise online education in the country in the past and have increased the focus in the circumstances caused due to COVID-19. The INFLIBNET Centre of the UGC has taken numerous initiatives for delivering education online to the doorsteps of the learners in the country even during the lock down period caused due to COVID-19. The present paper elaborates the role INFLIBNET Centre played for delivering education online.
Data in Doctoral Research in Social Sciences: A Case Study of Karnataka
Authors: Ramesha  , Asundi A. Y. , Chand B. B. , Chaithra A. M.
Published: July 2021

Data are assuming new magnitude, since the concept of big data emerged. Data is a prominent component in social science research. The Social Science data are variable in nature from region to region. The nature of social sciences data was compared to ‘iceberg’ by DEVSIS and its capture and management was given importance. A project was undertaken on Research Data Management in social sciences focusing on use of data in doctoral research. The study covers five premier universities of Karnataka has observed clear distinct features of data in the disciplines of social sciences. Researchers from Sociology, Economics, Commerce and Management disciplines use tables and figures heavily to present research data, whereas History, Geography use visual data. The uses of data are low in disciplines like History, Political science, Law and Women’s studies. The amount of data generated by doctoral researchers has immense potential for re-packaging and reuse. It is essential to build a data repository platform to share and reuse research data and train researchers to compile and upload the data for future use.
A Correlation Comparative Analysis of Top Articles in Library and Information Science using Citation and Altmetric Attention Scores
Authors: Rangaswamy B. , Rajendra Babu H.
Published: July 2021

A comparative analysis of the top articles published in library and information science journals has been carried out using correlation comparison between the traditional citations v/s modern score derived by the approach of altmetrics score. The common approach points for the study are: finding the most popular social media platform for Altmetric studies; the most popular LIS articles grabbed social media attention; and conducting the correlation comparison of citation and altmetric attention scores. Top 10 LIS journals with the highest Google scholar metrics in terms of h5-index were selected. After analysis, the top ten articles were selected on the basis of highly cited articles, altmetrics attention score, countrywise twitting. The first article has got the highest citations and AAS with 1528 and 1972 respectively and also got highest online attentions from Mendeley with 1930 readers and featured in 31 tweets. Paper-9 has got the highest of 196 tweets, followed by paper 3 & 7 with 99 and 59 tweets respectively. Overall the AAA score, outscored the citations for all articles considered for the study. USA tops the list in the tweeting these top articles with 73, with 51 UK secured second position in twitting scholarly literature. The results found that a significant difference with a negative correlation at r (9) =-.106, p=.770. The study suggests that Indian scholars need to use social media sites such as Blogs, Tweets, Facebook, Wiki, Mendeley and others to enable the scholarly literature to reach the wider audience efficiently and effectively.
Bibliometric Study of CSIR- Institute of Himalayan Bioresource Technology (CSIR-IHBT) during 1990 – 2019” published in SRELS Journal of Information Management volume 57 (6) December 2020 pages 309-318
Authors: Garg K. C. , Kumar S. , Kinwar Deobardhan
Published: July 2021

No Abstract.
Do que se cria: im/potência e sobredeterminação
Authors: Kurz Giovani T.
Published: July 2021

Em busca de novas articulações para se pensar linguagem e criação, propõe-se aqui uma leitura em cotejo dos pensamentos de Giorgio Agamben — especialmente de O que é o ato de criação?; Bartleby, ou da contingência; Infância e história; Estâncias — e de Patrice Maniglier — especialmente de Sobredeterminação e duplicidade dos signos; A ontologia do negativo; Do modo de existência dos objetos literários —, de modo a se sublinhar interfaces produtivas. A partir das noções de potência (e, por extensão, de impotência) e de sobredeterminação, encontra-se possibilidade de se discutir novos caminhos para se pensar o manuscrito literário — e, assim, a criação em literatura. Para tanto, retoma-se a crítica genética — olhar privilegiado sobre os bastidores da obra — em busca de um diálogo que produza novos horizontes, com o intuito de cobrir ou contornar lacunas com que a teoria contemporânea tem se deparado.
A importância e a utilidade da literatura para a vida: três perspectivas em diálogo
Authors: Rodrigues Talita Jordina
Published: July 2021

Este trabalho propõe um olhar relativo à valoração da literatura, especialmente seu caráter extrínseco, ou seja, sua importância para as pessoas e para o mundo. Assim, coloca-se em diálogo três autores que tratam dessa questão de maneiras distintas: o mexicano Jorge Volpi, o brasileiro Antonio Candido e a francesa Michele Petit. O primeiro desses autores busca na neurociência as possíveis explicações para que continuemos produzindo e consumindo literatura e é por essa abordagem que partiremos. Em seguida, observaremos também o que os três autores pensam a respeito de funções gerais e funções específicas do texto literário, tendo a ideia principal de que a literatura é humanizadora. Por fim, pensaremos à inter-relação estabelecida entre as obras, o sujeito e o mundo ao qual ele faz parte. Conseguiremos pensar, a partir dessas categorias, de que maneira a literatura opera transformações e o que faz com que ela seja importante e necessária.
Emma ou o amor infeliz
Authors: Thessier Ulric-Joseph , Costa Leila De Aguiar
Published: July 2021

Emma ou o amor infeliz. Episódio de cólera no Québec em 1832, título do conto publicado pelo jurista, professor de Direito e prefeito da cidade do Québec em princípio do século XIX, o canadense Ulric-Joseph Thessier, é narrativa que encena o flagelo que acomete uma comunidade quebequense em geral e uma família abastada em particular. Suas poucas dez páginas representam os horrores advindos do cólera que, flagelo mal administrado pelas autoridades locais, ataca diversas classes sociais, sem distinção. A anedota que emoldura o conto conta o fracasso da paixão amorosa do casal Emma e Eugène, pois que o cólera atinge a jovem e conduz a um desfecho irremediável e bastante trágico.
Perspectivas sobre a argumentação
Authors: De Lima Helcira Maria Rodrigues , Vitale María Alejandra
Published: July 2021

A Retórica de Aristóteles (1998) foi retomada e ressignificada pelas teorias da argumentação contemporâneas. Cada uma delas se apropria dessa herança de modo a alavancar, a partir dos anos de 1990, uma intensa produção de pesquisas. Na atualidade, em um movimento que visa à melhor compreensão dos discursos sociais, em especial, da polêmica, do papel das emoções no discurso, da violência verbal, de discursos de ódio, entre outros, assistimos ao resgate do pensamento aristotélico em problemáticas da argumentação, a partir de um necessário diálogo com os trabalhos produzidos sobre o discurso midiático, político e, em especial, sobre o discurso digital. Nessa seara, sem a pretensão de esgotar o assunto, nosso propósito é apresentar no artigo um panorama dos estudos em argumentação que circulam nas pesquisas contemporâneas, além de lançar algumas luzes à reflexão sobre o papel da argumentação nesse espaço digital, assim como na configuração e na circulação desses discursos.
Argumentação em discursos de ódio no Facebook
Authors: E Silva Welton Pereira
Published: July 2021

este artigo objetiva analisar estratégias argumentativas empregadas na veiculação de discursos de ódio contra minorias étnicas, de gênero/orientação sexual e religiosas no Facebook. Foi feita a coleta manual de comentários potencialmente ofensivos, sendo o corpus composto por 225 comentários de ódio com caráter lgbtfóbico, 194 comentários com teor racista e 181 comentários que apresentam intolerância religiosa, somando 600 comentários. Os dados foram analisados, levando-se em conta alguns trabalhos que tratam da argumentação como prática discursiva (AMOSSY, 2018; CHARAUDEAU, 2008, 2010), bem como trabalhos sobre o discurso de ódio (FORTUNA; NUNES, 2018). Ao final, apresentamos algumas categorias argumentativas para o discurso de ódio, visando à aplicação a análises periciais no âmbito da Linguística Forense e a tarefas de anotação de corpus no âmbito da Linguística Computacional.
“Tudo é e não é” entre sertão e gerais rosianos
Authors: Cruz Edinilia Nascimento
Published: July 2021

Este artigo busca analisar as formas de tensões e distensões na relação significativa de aproximação e distanciamento entre o sertão e os gerais rosianos, a partir de Corpo de baile (1956). Nesse livro, composto por sete narrativas, o processo de elaboração do espaço ficcional surge de maneira difusa gerando especificidades que recolocam em discussão as representações do espaço que se estruturara por meio da impossibilidade de fixar limites entre eles. Discute-se o sertão como um sistema móvel, cenário central da obra rosiana, e seus desdobramentos em gerais e veredas, categorias fundamentais na construção da narrativa e nas delimitações das singularidades das personagens viajantes. Nos textos rosianos, a construção do espaço é colocada em constante processo de ressignificação e aparece como lugares que estão paradoxalmente dentro e fora do mapa. Com base nesta problematização, propõe-se investigar como se configuram as manifestações de semelhanças e diferenças nesses espaços polissêmicos.
Pelo direito à voz
Authors: Fonseca Cíntia Borges Almeida
Published: July 2021

O presente artigo investiga o conceito de literatura a partir do diálogo entre as obras de duas autoras que utilizaram a palavra como resistência à condição de privação a que estavam submetidas: Carolina Maria de Jesus (1914-1977) e Stella do Patrocínio (1941- 1997). Neste percurso, buscam-se instantes poéticos construídos por duas mulheres determinadas a criar para si um lugar no mundo a partir dos abismos subjetivos e da atmosfera opressiva em que viviam. O presente estudo parte do legado deixado por essas mulheres apesar – e a partir – do desamparo, da fome, do delírio ou das privações para indagar sobre a potência da palavra como abrigo contra o aniquilamento da subjetividade.
análise sobre a subjetividade do “eu” nas metáforas da cor na obra O menino marrom, de Ziraldo
Authors: Pereira José Gomes , Daibert Bárbara Inês Ribeiro Simões
Published: July 2021

Este trabalho desenvolve uma abordagem crítica sobre a obra literária O menino marrom, do escritor Ziraldo. Publicado pela primeira vez em 1986, o livro apresentou como protagonista o menino marrom, que acabou conhecendo e fazendo amizade com o chamado menino cor-de-rosa. Tal obra descreveu os detalhes dessa amizade, frente às curiosidades pessoais, diferenças, valores humanos e questões raciais. O contexto da dúvida favoreceu, a cada um dos dois meninos, a construção de suas próprias identidades. Essa construção pode ser descrita sob três níveis: observação, comparação e relacionamento. Os personagens se observaram, compararam suas diferenças e conseguiram estabelecer um relacionamento de amizade, descobrindo traços de humanidade, respeito e convivência harmônica nas diversidades étnico-raciais. Considerando que o autor desenvolveu uma linguagem figurada, o propósito desta pesquisa é analisar as metáforas da cor, que permitem nivelar e tipificar as marcas de subjetividade do “eu”. Um “eu” em constante expansão, em torno de si, e na perspectiva do outro. Para tanto, serão utilizados, dentro de um quadro teórico-metodológico, os conceitos de identidade e alteridade de Zilá Bernd (1987, 1988) e os estudos pós-coloniais de Frantz Fanon (2008). Portanto, O menino marrom, de Ziraldo, é uma interessante ferramenta pedagógica da literatura infantil para ser desenvolvida em sala de aula, pois desarma a expectativa pré-estabelecida pela cultura europeia, do branco prevalecendo sobre o negro, e apresenta novas relações de ressignificação do mundo a partir da visão de duas crianças.
Helicobacter pylori ve inflamatuvar bağırsak hastalığı arasındaki ilişki
Authors: GERÇEKER Emre , CERRAH Serkan , BAYKAN Ahmet
Published: July 2021

Giriş ve Amaç: Kronik Helicobacter pylori enfeksiyonunun, sistematik immün toleransı indükleyerek ve inflamatuvar tepkileri baskılayarak inflamatuvar bağırsak hastalığına karşı korumada bir rol oynadığı ileri sürülmektedir. Çalışmanın birincil amacı inflamatuvar bağırsak hastalığı olgularında Helicobacter pylori sıklığını saptamaktır. İkincil amacı ise inflamatuvar bağırsak hastalığı ve Helicobacter pylori enfeksiyonu arasındaki ilişkiyi araştırmaktır. Gereç ve Yöntem: İnflamatuvar bağırsak hastalığı tanısı ile takip edilen, dispepsi nedeni ile üst gastrointestinal sistem endoskopisi yapılan 18 yaş üzeri hastaların verileri retrospektif olarak incelenerek olgular çalışmaya dahil edildi. Kontrol grubu inflamatuvar bağırsak hastalığı tanısı olmayan ve dispepsi nedeni ile üst gastrointestinal sistem endoskopisi yapılan olgulardan oluşturuldu. Tüm hastaların yaş, cinsiyet, üst gastrointestinal sistem endoskopide alınan biyopsi örneklerinin patolojik değerlendirme sonucundaki Helicobacter pylori varlığı, atrofik gastrit ve intestinal metaplazi varlığı bulguları kaydedildi. Her iki grup Helicobacter pylori sıklığı ve histopatolojik bulgular (intestinal metaplazi ve atrofik gastrit varlığı) yönünden karşılaştırıldı. Bulgular: Yüz altmış inflamatuvar bağırsak hastası ve 60 kontrol olmak üzere toplam 220 olgu çalışmaya dahil edildi. İnflamatuvar bağırsak hastalığı olgularının %53.8’i (n=86) ülseratif kolit, %46.2’si (n=74) Crohn hastalığı tanılı olgulardı. İnflamatuvar bağırsak hastalığı grubunda Helicobacter pylori oranı kontrol grubu ile karşılaştırıldığında anlamlı olarak daha düşük saptandı (%52.5’e karşı %73.3 ve p = 0.005). İnflamatuvar bağırsak hastalığı grubunda atrofik gastrit oranı kontrol grubu ile karşılaştırıldığında anlamlı olarak daha düşük bulundu (%3.1’e karşı %15 ve p = 0.001). İnflamatuvar bağırsak hastalığı grubunda intestinal metaplazi oranı kontrol grubu ile karşılaştırıldığında anlamlı olarak daha düşüktü (%1.9’a karşı %11.7 ve p = 0.002). Sonuç: İnflamatuvar bağırsak hastalığı grubunda anlamlı olarak daha düşük oranda Helicobacter pylori pozitifliği saptanmıştır. Aynı şekilde, inflamatuvar bağırsak hastalığı grubunda daha düşük oranda atrofik gastrit ve intestinal metaplazi varlığı saptanmıştır. İnflamatuvar bağırsak hastalığı olgularında tedavide kullanılan antibiyotiklerin Helicobacter pylori sıklığını azaltarak daha az sıklıkta atrofik gastrit ve intestinal metaplazi gelişimine yol açtığını düşünmekteyiz.
Electrochemical Corrosion Properties of Ternary Al and Quaternary Zr Added Bell Metal in 0.1M NaCl Solution
Authors: Khan Sakib Al Razi , Hossain Mohammad Ashfaq , Al Nur Maglub , Kaiser Mohammad Salim
Published: July 2021

The electrochemical corrosion property of ternary Al and quaternary Zr added Bell metal in 0.1M Sodium Chloride solution has been experimentally conducted at room temperature. Electrochemical impedance spectroscopy (EIS) method and Potentiodynamic polarization technique are used to carry out the electrochemical investigation. Microhardness test is also conducted for all three alloys and it reveals that Al addition increases the hardness of bell metal due to the formation of different intermetallic precipitates of Cu and Al. Optical Micrograph as well as Scanning Electron Micrograph have also been studied to characterize their surface condition. It is found that Zr addition refines the grain structure of the alloy and results in increase of hardness. The EIS study reveals that the corrosion resistance is seem to be augmented with the addition of ternary Al and quaternary Zr to bell metal. The potentiodynamic polarization curves disclose that both ternary Al added and quaternary Zr added alloy show better corrosion performance than the base bell metal alloy due to the formation of stable aluminium oxide film. The currentdensity (Icorr) of base bell metal showed higher value than both ternary Al added and quaternary Zr added bell metal alloys. The corrosion potential (Ecorr) and the open circuit potential (OCP) were seen to be moved to the more positive direction for the Al and Zr added alloys. Microstructure and SEM study of the alloys after corrosion revealed a formation of an oxide film on the surface of the ternary A and quaternary Zr added alloys, the probable cause of which is the presence of Al in the respective alloys.
Asociacionismo como Instrumento de Participación y Ejercicio del Poder en Maracaibo, Venezuela (1880-1910)
Authors: Boscán-Fernández Jairo Enrique , Guanipa-De Dávila Xiomara Emilia
Published: July 2021

En el artículo se interpreta el fenómeno del asociacionismo como instrumento de poder en los actores económicos de Maracaibo (Venezuela) en el período 1880-1910, sustentado en el adelantamiento de una política de modernización y el otorgamiento de mayor amplitud a la libertad individual. Desde estas prácticas se configura una estrecha relación entre los funcionarios del Estado e inversionistas ingleses, alemanes, y franceses, planteando el financiamiento y ejecución de obras para el bienestar público. Esta realidad expresa el desarrollo ideológico de los maracaiberos de la época, vinculado con la penetración del liberalismo y el positivismo como corrientes del pensamiento. La investigación es de naturaleza hermenéutica explicativa, cuyos datos emanan del Archivo Histórico del Zulia (Venezuela), Centro de Investigaciones Documentales Históricas del Zulia y fuentes secundarias. Los resultados permiten comprender el significado del asociacionismo en la región geo-histórica marabina como herramienta promotora de prácticas sociales y patrones culturales, desde los cuales emerge una concepción del espacio público para el disfrute, la realización de obras y el ejercicio del poder, amparado en un discurso altruista alineado con la prédica del bien común. Se concluye en una noción de poder asociado a términos de producción que sobrepone la libertad a la represión, la promoción a la prohibición y la recompensa al castigo.
A kitöltési idő és az adatminőség közötti összefüggések vizsgálata az ESS 9. hullámának adatain
Authors: Stefkovics Ádám , Wurm Viktor
Published: July 2021

Egy kérdőív hossza sok egyéb mellett befolyásolja a válaszadási hajlandóságot, a költségeket és a kérdezőbiztosok motivációját. Mindezek mellett ritkábban esik szó arról, hogy a kitöltési idő, avagy a kitöltés sebessége milyen hatással van az adatminőségre. Feltételezhető, hogy a válaszadásnak létezik egy egyénenként eltérő optimális sebessége, amely sebességtől való bármilyen irányú eltérés az adatminőség romlásához vezethet. Korábbi, European Social Survey (ESS) adatokat elemző kutatások már találtak összefüggést a kitöltés sebessége és az adatminőség között, ám ezek a vizsgálatok nem elsősorban az adatminőségre, hanem a kérdezőbiztosok szerepére fókuszáltak. Jelen tanulmány célja feltérképezni a kitöltési idő és az adatminőség kapcsolatát a korábbiaknál részletesebb, komplexebb adatminőség- indikátorok használatával. Elemzésünkben az ESS kilencedik, 2018-as hullámának adatait használjuk. Az országok mintegy felében gyenge, de szignifikáns összefüggést találtunk a kitöltési idő és az adatminőség között, a szociodemográfiai jellemzők kontroll alatt tartása mellett is. A hanyag válaszadói attitűd (magas részleges nemválaszolás, magas nem-differenciált válaszadás) túl gyors kitöltéssel párosul, míg a társadalmilag elvárt válaszadás túl lassú kitöltéssel. Az eredmények felhívják a figyelmet arra, hogy az ESS-nek fontos monitoroznia a kitöltés hosszát, továbbá a kérdezőbiztosok képzése során figyelmet kell fordítani a fenti válaszadói (vagy kérdezőbiztosi) hibák kezelésére és az optimális kérdezési sebesség betartatására.
The effect of health promotion in overcoming dengue hemorrhagic fever in public senior high school one Bitung city, North Sulawesi, Indonesia
Authors: Engkeng Sulaemana , Punuh Maureen Irinne , Asrifuddin Afnal
Published: July 2021

Background: Dengue hemorrhagic fever is a health problem in Indonesia because both the virus that causes it and the mosquitoes that transmit it are widespread in residential areas and public facilities throughout Indonesia. This study aims to determine the level of knowledge before and after counselling.Methods: The type of research used is quantitative research with a quasi-experimental approach in one group pre-test post-test which was held at State high school 1, Bitung city. The population in this study were all students at the State high school 1, Bitung city with a total sample of 89 students using the Lemeshow formula. The sampling technique used was stratified random sampling with the inclusion criteria being willing to be respondents and being present at the time of the research, while the exclusive criteria were transfer students from other schools.Results: Based on the results of the study, it was found that there was an increase in respondents' knowledge about dengue prevention. The results of the analysis of student knowledge in the pre-test showed mean=13.17 with a standard deviation of 1.848 and in the post-test showed mean = 16.08 with a standard deviation of 2.341. There is a significant increase in knowledge of student's knowledge with the results obtained, namely the difference in the mean of -2,910 and p<0.05.Conclusions: The outcomes achieved by the counselling given to students can provide increased knowledge through the media of posters, stickers, brochures, videos and banners.
Stroke recognition efficiency by emergency medical dispatchers
Authors: Tippayanate Nantawan , Chaleepad Supalak , Intarut Nirun
Published: July 2021

Background: Delaying treatment for an acute stroke can typically lead to further severity and disastrous consequences. The majority of patients, however, did not arrive at the hospital in time to get thrombolysis. While the accuracy of stroke diagnosis by emergency medical dispatchers (EMDs) remains uncertain. The focus of this research was to assess the accuracy of the stroke detection (face-arm-speech-time tool) (FAST) utilized by EMDs for the management of acute stroke was as well as how it affected patients' time from door to CT and door-to-needle time.Methods: From 1 January 2020 to 31 December 2020, this research was performed retrospectively. We included all patients over the age of 18 who had an acute stroke identified by incident dispatch code 18. Data was gathered using pre-hospital forms and hospital records. The CT scan findings were used to predict the overall diagnosis.Results: Overall 244 patients, only 143 likely cases (62.4%) were identified by EMDs out of 181 final stroke diagnosis. Conversely, the specificity was 44.4 percent and the sensitivity was 63.5 percent. Only 19 patients (10.5%) obtained a CT scan within 60 minutes, per the data from acute stroke patients, whereas only 40 patients with acute ischemic stroke acquired r-TPA (22.1%).Conclusions: It remains undecided if the failure to use FAST, the inability to recognize positive FAST indicators, or the failure to report FAST findings involves issues with EMDs assessments.
A study of morbidities among electronic equipment manufacturing workers in Goa
Authors: Mhalshekar Vishwaraj K. , Kunkolienkar Rudra Prasad , Naik Saideep Deepak , Rodrigues Eli Jonathan , Chauhan Pradeep Singh , Cacodcar Jagadish Anil
Published: July 2021

Background: Electronic equipment manufacturing units are among the most common industries all over the world. It involves a large amount of employees required for processing, manufacturing, building and setting up electronic equipments. Workers are usually sedentary and involve very less physical movement. Chronic illnesses are common among these sedentary workers of which most important are cardiovascular diseases, hypertension, obesity and diabetes. Considering the importance of the subject and the lack of published evidence on health status of electronic manufacturing workers, our study was done with an aim of assessing selected morbidities among electronic equipment manufacturing units in Goa.Methods: Our retrospective record based cross-sectional study was conducted over a period of one month in March 2019. The study was done in electronic equipment manufacturing workers. Data included sociodemographic details of the workers and details of periodic medical check-up. The data analysis was done using and analyzed using SPSS version 22. Chi square test was used to assess association between qualitative variables.Results: Among the 109 electronic manufacturing workers, it was observed that 10.1% (11) had obesity with a BMI >30, 24.8% (27) had hypertension (>140/90) and 31.2% (34) had diabetes mellitus with HbA1c >6.5. In addition, 24.8% (27) had far vision defect and 39.4% (43) had near vision defect. 42.2% (46) had abnormal lung function tests, 0.9% (1) had hearing disability and 4.6% (5) had abnormal ECG findings. Among male workers 0.9% (1) had elevated PSA levels, whereas all PAPs smear reports were normal among female workers.Conclusions: This study highlights the need of periodic medical check-up of the electronic manufacturing workers for timely detection and early management of their health problems.
Burden of undernutrition among children of 12-59 months living in a slum of Kolkata: a cross-sectional study
Authors: Dasgupta Aparajita , Shree Nidhi , Paul Bobby , Bandyopadhyay Lina , Roy Soumit , Maurya Neelam , Pyrbot Foulisa
Published: July 2021

Background: Children living in slums are often deprived of good health. Their predisposition to malnutrition, makes them vulnerable to various infections and deficiency disorders affecting their growth. The objective of the study was to assess the nutritional status of 12-59 months children using Composite Index of Anthropometric Failure, to find out their morbidity profile, dietary diversity scores and to determine factors associated with CIAF.Methods: Study was conducted among 115 children of 12-59 months age, living in Chetla slum, Kolkata, West Bengal from July to October 2019. A pre-designed, pre-tested schedule containing their sociodemographic characteristics, morbidity profile, dietary diversity and anthropometric measurements were used to collect the data. World Health Organization (WHO) Anthro. Ink 11 software was used to calculate the z scores Data was analysed in Microsoft Excel 2016 and Statistical package for social sciences (SPSS) version 16.Results: Mean age (SD) of study participants was 30.77 (7) months. 43.5% children had CIAF. Proportion of underweight, stunting, weight for height and mid upper arm circumference wise malnutrition were 16.5%, 27.8%, 14.8% and 43% respectively. Majority, 87.8% had low dietary diversity and 38% had morbidity.Conclusions: The proportion of CIAF was found high in the study. Low birth weight, single living child, absence of exclusive breastfeeding practice and dietary diversity were significantly associated in univariate analysis. CIAF gives a single convenient complete picture for malnutrition compared to other conventional interpretation methods, this it can be included in child health programmes. Enlightening the care givers of under-five by health education and health promotional programmes can prevent malnutrition from occurring.
The prevalence of myopia among school-going children (6-14 years) in Chidambaram, Tamil Nadu: a cross-sectional study
Authors: Dhivyaa T. , Kalyani P. , Felix A. John William
Published: July 2021

Background: Refractive errors are one of the most common causes of visual impairment worldwide. Uncorrected, under corrected and undetected refractive errors among school-going children are the most significant problem in developing countries like India. Schools are the best place for early detection of ocular morbidity. Myopia, hypermetropia and astigmatism are the three main types of refractive errors, of which myopia is the most common type in school-going children.Methods: This descriptive cross-sectional study was carried out for the period of 6 months from October 2019 to March 2020 among school-going children in the field practice area of Chidambaram. 575 students from two government and 2 private schools were selected conveniently. Data were collected using a pre-tested, semi-structured questionnaire and analysed using Statistical Package for social sciences (SPSS) software version 23. Descriptive statistics were used and a Chi-square test of significance was applied.Results: The prevalence of myopia was found to be 12.9%. There is a significant association between the frequency of reading hours, time spent on outdoor activities and mobile usage and the presence of myopia (p<0.05).Conclusions: The risk factors like hours of reading books, time spent on outdoor activities and mobile usage are the contributing factors for the development of refractive error like myopia. They are easily detectable through the program on eye screening of school children.
Impact of pandemic control measures on physical activities and sedentary behaviour of medical students in Kozhikode
Authors: K. Ajith S. , Gangadaran Alan , Pradeep Prabin , Purushothaman Pranav K. , Thayyil Jayakrishnan
Published: July 2021

Background: For a highly contagious disease like COVID-19, restriction of movement and public gatherings is an age-old control measure. But these measures can have some physical and psychological impact on people. This study aimed at investigating the impact of such restrictions on the physical activities (PA) and sedentary behaviour (SB) of students at a medical college in Kozhikode. The objective was to find out the changes in PA and SB among the medical students at government medical college, Kozhikode before and after COVID-19 restrictions.Methods: Cross-sectional study was conducted using modified WHO GPAQ questionnaire sent as google form to potential candidates through whatsapp messenger. Collected data were analysed using Microsoft excel software and statistical comparison was done using the paired t test. Quantitative data was expressed as mean and SD and qualitative data as percentage.Results: The average BMI of the candidates was 21.1 kg/m2 and 21.7 kg/m2 pre and post COVID-19 restrictions, respectively. The PA was 1790.2 and 1445.4 MET minutes before and after the period of study. There is significant reduction in PA (p=0.033) and increment in SB (p<0.01). Weight gain was significant in females (p=0.02).Conclusions: There was decline in the total PA and increase in SB significantly post restriction. There was also an increase in the self-reported weight and BMI of medical students. Almost half of the students made effort to change their physical activity pattern indicating their awareness of increasing SB.
Water quality at the source and incidence of water borne diseases in rural households of South India
Authors: Jayakrishnan Thayyil , Rao Bhaskar , Cyriac Milu Elizabath , Harikumar P. S. , Cherumanalil Jeeja Mathummal
Published: July 2021

Background: The relation of water quality indicators and water borne diseases (WBD) is not properly studied in tropical countries like India. Most of the studies done were cross sectional which reported only point prevalence. This tends to under-estimate and is not adequate to explain the relation. In this context to assess the incidence of water born diseases in relation to household drinking water quality, a longitudinal prospective study was conducted.Methods: The study was conducted in a South Indian state, in a rural area among the members of 300 households by weekly data collection for one year. Water samples were collected and analysis was done thrice corresponding to the climate. Bacterial quality indicators - Total coliform count (TCC), Faecal coliform count (FCC) and E. coli were estimated. The data were processed and analyzed.Results: From 300 households, total 1459 persons were enrolled. During the 12 months period, 72 episodes of WBDs were recorded with incidence rate of 49/1000 person years. Proportional morbidity due to WBD was 11.9%. The WBD reported were ADD, dysentery and hepatitis A. Up to 30% water sources contained E. coli in summer and winter samples and more than 60% in rainy samples. Faecal coliform count was >10 MPN/100 ml in all the seasons in more than 60% water sourcesConclusions: Most of the main water source wells were contaminated. Contamination was more in rainy season. Incidence of WBD has no correlation with water quality indicators in all the seasons (p≥0.05).
Internet usage among medical students: prevalence, addiction and health issues
Authors: Raveendran Rini , Jose Rajany , Jacob Sabitha Rose , George Ancy S. , N. Vinayak , K. Mubashir Muhyudheen , S. Greeshma , Unni Revathi , S. Aswani K.
Published: July 2021

Background: Among students worldwide, internet addiction is becoming a major problem. As the number of internet users continue to grow explosively, social networking too grows exponentially. Therefore, it is important to study internet behaviour patterns. The aim of the study was to estimate the prevalence and characteristics of internet usage, addiction among medical students.Methods: A cross-sectional study was done among 227 medical students. Students aged between 17-24 years was selected by simple random sampling technique from the college. A self-administered questionnaire was used. It includes questions pertaining to sociodemographic status, attitude, practice based and Young’s internet addiction test.Results: The prevalence of internet addiction was 59%.113 (49.8%) students were average online users (mild addiction), 19 (8.4%) students were experiencing occasional and frequent problems (moderate addiction) and 2 (0.8%) severely addicted students Most of the study population initiated internet use between the ages of 16 -18 years, 89 (39%). Our study revealed that 196 (86.3%) students were using internet for educational purposes, 135 (59.5%) for entertainment and 189 (83.2%) for socialising. Headache was the commonest health problem 102 (44%) followed by sleep disturbances in 40 (17.6%), back pain in 14 (6.1%) and anxiety, stress, visual difficulties in 29 (15%) students.Conclusions: This research provides an insight into the current trend towards usage of the internet for academic as well as non-academic purposes among medical students. Health issues are a long term concern which need to be addressed on a war footing. Ergonomically placed interventional strategies are pertinent as a primary level of prevention.
COVID-19: sudden and dramatic upsurge in the number of cases in India
Authors: Barot Ketul S. , Naik Saloni H. , Patel Mehrie H. , Mankad Saptak P. , Patel Akash A. , Pandya Pankti S. , Patel Vishwa V. , Nimbalkar Somashekhar M.
Published: July 2021

The second wave of coronavirus disease 2019 (COVID-19) in India, which commenced in March’21, continues to create a major crisis of medications, hospital beds, oxygen, and Intensive Care Units at very rapid rate which has placed the country on the verge of a humanitarian crisis. While no definite treatment for SARS-CoV-2 has been found, different types of vaccines have been manufactured which have shown some effectiveness in preventing disease progression and severity. The objective of this manuscript is to review the available data from the pandemic and highlight the factors that have contributed to the development of second wave in India which has led to crisis. In this review, using available scientific literature on various indexes such as PubMed, Google Scholar, Medline and news articles- where appropriate, we dive into understanding newer virus variants, vaccines and their effectiveness against new strains, overwhelming burden on the Indian healthcare system and socio-politico-environmental factors responsible for upsurge. The sudden upsurge in the number of cases is multifactorial, which includes virus variants, complacency in following COVID-19 appropriate behaviour, burden over the health care system, various socio-politico-environmental factors. As the definitive treatment is yet to be discovered, vaccination remains at the top.
Techniques of hollow maxillary dentures: a literature review
Authors: Haroub Anas Omar , Alaidarous Alaa Mohammad , Alshahrani Mazen Thabet , Alrasheedi Naif Mayouf , Almodahi Abdulhakeem Nasier , Alnahdi Alanoud Abdullah , Alanazi Bashayr Habbas , Alghamdi Aljawharah Talal , Alkhashrami Shuruq Suhaim , Ashour Zeyad Tariq
Published: July 2021

Clinically, the management of severy atrophic maxilla might represent a significant challenge for the attending dentists and surgeons to successfully perform and achieve fabricated complete maxillary dentures. Making a hollow denture base for these defects has also been previously reported as a valid approach that can be used to decrease the weight of the maxillary prosthesis. Many modalities have been proposed for these procedures with favorable outcomes, and variable events of disadvantages and adverse events. This literature review aims to collect enough evidence regarding the different reported techniques of the hollow maxillary denture, according to the different studies. Many techniques have been previously reported as using magnets, using implants, intramucosal inserts, springs, suction disks, lightweight dentures, and modified impression techniques. Many materials have been previously used with the 3D spacers of the lightweight denture techniques as dental stone, silicon putty, cellophane-wrapped asbestos, light-body coated gauze, modeling clay, salt, thermocol, caramel, and glycerine soap. Favoring one of the modalities over the other requires the inauguration of future studies with an adequate sample size to validate the efficacy and safety of these modalities. All of this information is furtherly discussed within the manuscript based on the collected evidence from the different studies in the literature.