bluuebunny/crossref_metadata_2025 huggingface dataset:
Use of Industrial Waste for the Optimization of Ceramic Construction Materials
Authors: Galhano Carlos , Lamas Pedro , Seixas Diogo
Published: April 2020

The massive growth of the ceramic industry and the consequent demand for construction materials worldwide has motivated the search for alternative solutions aimed at reducing the use of mineral / natural resources as the main source of raw materials. One of the strategies frequently adopted by the scientific community is the reuse of industrial waste. It is beneficial not only to reduce the overexploitation of mineral resources but also to reduce the environmental, economic and social impacts resulting from their incorrect disposal/treatment and consequent deposition on land unsuitable or that purpose. Duetoconsiderationssuchasphysico-mechanical characteristics and the high production rate, two different types of industrial waste were selected for this work, ashes resulting from the burning of coal in thermoelectric power plant, commonly known as bottom ash (B), and the Marble Powder (MP). It was intended to test the technological feasibility of the manufacture of ceramic materials produced from clay mixtures containing these two residues. For this purpose, the fine fraction(<63μm)obtained from the sieving of the marbleresidue(MR)and slag(Bf)was used,aswellasacoarsergrainslagfractionrangingfrom63-125μm(Bg). The resulting test samples were subjected to a firing of 950 °C under an oxidizing atmosphere, following a primary drying process. Faced with the standard values, the new ceramic materials obtained from MP have seen their mechanical and porous characteristics decrease and increase, respectively. Atthesametime,althoughtheadditionofBinno way influenced the mechanical characteristics,a significant improvement the porous characteristic was observed. The incorporation of these residues produced a color very close to the original sample material.
Keywords: industrial waste, ceramic, construction materials, bottom ash, Marble Powder
Low Temperature Glass Sintering Based on Silico Sodium Resins
Authors: Paz Sáez-Pérez María , Martínez-Ramírez Alberto , DuránSuárez Orge Alberto , Villegas-Broncano María Ángeles
Published: April 2020

By using silicate inorganic binders and glass waste it is possible to mould technical and artistic elements which later can be compacted by means of low temperature, and subsequently apply the sintering through high-temperature processing, which is generally lower than current melting glass processes, close to 1250 °C. The experimental phase established thermal ranges from 600°C to 750°C, a fact that allows for an effective sintering temperature (of around 650°C/18 hours). The mixtures and proportions for this experiment were fixed including ethyl silicate as a fluidizer in mixtures,as well as the size of glass grains.The results indicate good compaction of the samples after the initial phase (80°C/24h), allowing proper handling without alterations in samples edges.During heating treatment, mechanical resistance increases gradually (600-750°C), although the volume of porosity was inversely proportional. According to the matrix vs grain size relationship, the partial fusion of both materials is evident in the rounding of the glass grains as well as the resin bonds joined between them. The resins appeared in a homogenous fashion, covering and gluing the grains, a development which improves the joining of sintered samples. Samples with a mixture of sodium silicate and ethyl silicate resins experienced less melting between grains due to a lower volume of fluxing elements, which means a lower percentage volume of sodium (Na). This study concludes that a sintering process for new vitreous composites could be carried out between 650°C and 700°C, offering the opportunity for a substantial reduction in the amount of energy required to produce industrial glass.
Keywords: Water-glass, glass recycling, low temperature
Strength Development and Pore Structure Characterisation of Binary Alkali-activated Binder Based on Tungsten Mining Waste
Authors: Sedira Naim , Castro-Gomes João
Published: April 2020

The mineralogical properties of tungsten mining waste mud (TMWM) make its valorisation and re-usage as an alumino-silicate source material to produce an alkali-activated binder without calcination is a challenge. Moreover, the dissolution of silicate and alumina species from TMWM is very slow. Despite the crystallinity of TMWM, this study demonstrates that its combination with other sources of the alumino-silicate source was the materials–such as red clay brick waste(RCBW),ground granulated blast furnace slag (GGBFS) and electric arc furnace slag (EAFS) – improved the compressive strength and the pore structure of the alkali-activated matrix.Thecombinedprecursors (90 vt.%TMWM+10 vt.%RCBW, 90 vt.%TMWM+10 vt.%GGBFS, and 90 vt.%TMWM+10 vt.%EAFS) were activated using a combination of alkaline activator solutions (sodium silicate and sodium hydroxide) with the ratio of 1:3(66.6wt.%sodiumsilicatecombined with 33.33 wt.% of NaOH 10M). The results show that the compressive strength increased from11.23MPa at 28 days to reach 24.98MPawhentheTMWMwaspartially replacedby10vt.%RCBW. In addition,this study shows that the interconnected porosity decreased where the critical pore size was reduced from 21.28 µm to 0.55 µm for the tungsten mining waste-based alkali-activated binder and the binary alkali-activated binder based on TMWM and RCBW.
Keywords: Mining Waste, Alkali-activated, Microstructure, MIP, Metakaolin
Experimental Investigation on the Properties of a Recycled Aggregate Concrete Based on Waste of the Industrial Mineral Additions
Authors: Belagraa Larbi , Kessal Oussama , Boulaouad Abderrachid , Cherif Mecheri Med , Noui Ammar , Abderrazak Bouzid
Published: April 2020

This study investigates the possible effects of incorporating different industry wastes during manufacturing of concrete, with percentages ranging from 0% to 30%, and assesses the influence of these combinations (mineral additions and recycled aggregates) on the properties of a recycled concrete comprised of these two main constituents products. Recycled concrete samples with different combinations of mineral additions at various dosages were used to determine these properties in the fresh and hardened states. The ”Design-expert” methodology was used to analyse the results after 7, 14 and 28 days, identifying correlations and the effects of the different variables. The results obtained showed the advantageous effect of incorporating the pozzolana and slag into the concrete mixture at dosages of 15% and 30%, they also demonstrated the low optimal percentage of marble fillers of 5%. These findings suggest that replacing clinker with industrial waste could limit the dust and CO2 emissions into the atmosphere during concrete manufacture, offering environmental advantages as well as conserving the natural resources of aggregate recovery from C&D wastes.
Keywords: environmental concrete, mineral additions, recycled aggregate, design expert method.
Development of Alkali-activated Foamed Lightweight Mortar Tungsten Mining Waste Mud-based Incorporating Expanded Cork
Authors: Beghoura Imed , Castro-Gomes Joao
Published: April 2020

In this study, an Alkali-activation of tungsten mining waste mud (TMWM) was combined with aluminium powder (Al) as a blowing agent (gas foaming method). The synthesis of inorganic alkali-activated foamed mortar (AA-FM) and alkali-activated lightweight foamed mortar (AALW-FM) was achieved by incorporating expanded granulated cork (EGC) and one type of river sand < 2 mm. Al powder was added first to the dry mix with the mass used varying from 0.1 g to 0.5 g. Precursors and activators were included to produce a homogeneous mixture, which was placed into a mould (100x100x60 mm3), and cured in the oven at 60° C for 24 hours. The influence of two main parameters (Al powder contents and cork particles) on the AA-FM and AALW-FM properties (compressive strength, density, expansion volume and pore size distribution) were investigated. The compressive strength of the foams in the case of highly porous structures of the AALW-FM and AA-FM achieved 4.1MPa and 13.2MPa respectively, for samples with a larger amount of Al powder (0.5g). Open celled hardened of the AALW-FM and AA-FM with 0.5g Al shows a high porosity of 40% and 81% respectively. Therefore, tungsten mining waste-based alkali-activated foams shows potential as a thermal insulation material in certain situations.
Keywords: Tungsten mining waste, Alkali-activated, Foamed Materials
Study of the Effect of Waste Glass Fibers Incorporation on the Collapsible Soil Stability Behavior
Authors: Bakir Nassima , Abbeche Khelifa , Panczer Gérard , Belagraa Larbi
Published: April 2020

Soil collapse remains a major issue affecting structural foundations, particularly in arid and semi-arid zones where humidification is a key factor contributing to the collapse. Much research has been devoted to identifying treatment methods which enhance the stability and load-bearing capacity of this type of soil. This paper investigates the potential advantages of the addition of milled glass fibers (Fg ). Soil samples were prepared at different compaction energies and various water contents, then treated with different percentages of milled glass fiber, before being submitted to the simple consolidation odometer test. The results obtained in this study showed that soil samples treated with an optimal dosage of 6% of milled glass fibers compacted at 60 blows and humidified at 6% of moisture content. This represents an improvement in the stability of the soil, reducing the collapse potential (Cp) from 11.95% to 1.62%. This treatment method produces soil which can be classified as a moderate risk foundation soil according to the Jennings and Knight evaluation metrics (1975).
Keywords: collapsible soils, arid zones, fiberglass, odometer test.
Marble Quarry Waste Rock Piles and Evaluation of Their Reprocessing Potential for Lime and Cement Production (Marble Zone, Alentejo, Portugal)
Authors: Sá Caetano Paulo , Ribeiro Tatiana , Costa Carlos , Vendas Daniel
Published: April 2020

Approximately 80% to 90% of the total stone extracted by the ornamental stone industry in the Marble Zone (Alentejo, South Portugal) is wasted and discarded in the numerous quarry waste rock piles across the region. This enormous amount of marble waste, representing millions of tons of stone each year, mostly with an expected high chemical composition of calcium carbonate, has significant potential with regards to reprocessing and use in other industries. This study evaluates the potential viability of these marble waste piles for reprocessing. The methodological approach, designed in two phases, firstly selected potential sites and, secondly implemented a sampling plan to allow for the laboratory analyses. In the first phase, a total of 178 waste rock piles were identified, corresponding to an estimated 70mn tons of marble raw material. In the second phase, 30 selected piles were sampled and chemically analysed by calcimetry, XRF and flame emission spectrometry. The results show that 7 of the sampled piles present CaCO3 content above 97%, and another 14 show contents between 95% - 97%. This indicates that the waste could be reprocessed to produce lime and/or cement (clay materials are found in the surrounding schist outcrops in the region). There is also the potential for aggregate production for civil engineering works.
Keywords: marble, waste reprocessing, lime production
Microstructure Features of Ternary Alkali-activated Binder Based on Tungsten Mining Waste, Slag and Metakaolin
Authors: Sedira Naim , Castro-Gomes João
Published: April 2020

This study determines the effect of ground granulated blast furnace slag (GGBFS) and metakaolin (MK) on the microstructural properties of the tungsten mining waste-based alkali-activated binder (TMWM). During this investigation, TMWM was partially replaced with 10 wt.% GGBFS and 10 wt.% MK to improve the microstructure of the binder. In order to understand the effect of the substitutions on the microstructure, two pastes were produced to make a comparative study between the sample contain 100% TMWM and the ternary precursors. Both precursors were activated using a combination of alkaline activator solutions (sodium silicate and sodium hydroxide) with the ratio of 1:3 (66.6 wt.% sodium silicate combined with 33.33 wt.% of NaOH 8M). The alkali-activated mixes were cured in oven at temperature of 60 °C in the first day and at room temperature for the next 27 days. The reaction products N-A-S-H gel and (N,M)-A-S-H gel resulted from the alkaline activation reaction process. In addition, a formation of natrite (Na2CO3) with needles shape occurred as a reaction product of the fluorescence phenomena. However, a dense matrix resulted from the alkline activation of the ternary precursors containg different gels such as N-A-S-H, C-A-S-H and (N,M)-C-A-S-H gel, these results were obtained through SEM-EDS analyses, as well FTIR tests.
Keywords: Mining Waste, Alkali-activated, Microstructure, Slag, Metakaolin
Applying Chemometrics to Evaluate Tungsten Mining Residues Potential As Partial Cement Replacement
Authors: Almeida Joana , Santos Silva António , Faria Paulina , Ribeiro Alexandra
Published: April 2020

Electroremediation and deep eutectic solvents are well-documented clean-up processes for metals extraction from solid matrices. Depending on the purpose, these treatments may generate a residue free of pollutants and critical raw materials. Several studies were conducted to re-insert treated secondary resources in building materials. However, there is a research gap in the improvement of reactive properties of these secondary resources. In addition, there is a lack of pozzolans that can optimize cementitious materials. This study investigates the pozzolanic reactivity of tungsten mining residues after receiving electrodialytic treatment in the presence of natural deep eutectic solvents. In all cases, thermal treatment after electroremediation potentiated the pozzolanic reactivity of tungsten mining residues, between 64% to 87%. The introduction of these pozzolanic resources in cementitious-based materials may increase their performance, enlarge the range of applications in the construction industry, reduce the environmental impact, and contribute to a circular economy.
Keywords: electro-based technology, tungsten mining waste, construction material, pozzolanicity.
Comparación entre la corrección con mallas sintéticas vía vaginal del prolapso genital versus técnicas vaginales tradicionales. Clínica Universitaria Bolivariana, Medellín, Colombia 2006-2007*
Authors: Echavarría-Restrepo Luis G. , Londoño-Montoya Juan A. , Trujillo-Gallego Luis F. , Montoya-Vélez Liliana P.
Published: April 2020

Objetivo: comparar las técnicas de corrección de fallas del sostén del piso pélvico que utilizan mallas, con las técnicas tradicionales.Métodos: cohortes de pacientes intervenidas en la Clínica Universitaria Bolivariana, Medellín, Colombia. Una cohorte utilizó mallas sintéticas y la otra técnica tradicional. Se evaluaron las complicaciones tempranas y tardías, y la recurrencia de defectos de la pared anterior y recidiva del prolapso de cúpula. La evaluación la realizó un ginecólogo que no intervino las pacientes y desconocía la técnica empleada. El seguimiento fue hecho a los 6 y 12 meses de la cirugía. Se compararon los dos grupos mediante el riesgo relativo y los intervalos de confianza. Se solicitó consentimiento informado.Resultados: no hubo recaídas en las cirugías del compartimiento posterior y se observó tendencia a menor falla en las cirugías de la región apical usando mallas. A los seis meses de seguimiento se encontró un riesgo relativo = 0,26, IC 95% = 0,10 - 0,69, p = 0,001 a favor de la técnica con malla en la reparación del compartimiento anterior y al año se confirmó esta técnica como protectora de la recaída (RR = 0,32, IC 95% = 0,12 - 0,81, p = 0,004).Discusión: el reto del cirujano pélvico es el control del compartimiento anterior. Los defectos paravaginales casi nunca son contemplados en las técnicas de corrección tradicional, estos son objeto primordial en el manejo integral con mallas para disminuir la recurrencia. En la cohorte intervenida con mallas se busca la neoformación de tejidos, ubicando el material sintético en los reparos anatómicos para rescatar el mecanismo funcional de la continencia. La revisión sistemática de Cochrane (2007) coincide con los resultados, privilegiando la corrección del compartimiento anterior con material sintético y confirmando la menor tasa de recaídas.
Prevalencia de lesión escamosa intraepitelial (LEI) y malignidad para las atipias escamosas de significado indeterminado (ASC-US), en población perteneciente a una aseguradora pública en Colombia, 2004 - 2005
Authors: Huertas-Pacheco Sandra , Acosta-Forero Jinneth , Cabarcas-Santoya Martha , Sánchez-Merchán Ángel Yobany , Ricaurte-Guerrero Orlando
Published: April 2020

Objetivo: determinar la prevalencia de lesiones escamosas intraepiteliales (LEI) y malignidad de casos referidos con hallazgos citológicos de "atipias escamosas de significado indeterminado" o "atipias escamosas que no permiten excluir lesión de alto grado" (ASC-US o ASC-H, por sus siglas en inglés, respectivamente).  Metodología: se seleccionaron los informes de las pacientes referidas con interpretación citológica de ASC-US o ASC-H y se determinó el resultado del estudio histopatológico de la biopsia de cérvix, en el primer programa de promoción y prevención de cáncer de cuello uterino de la EPS Seguro Social, seccional Cundinamarca y Bogotá, entre junio del 2004 y septiembre del 2005. Se analizaron además las variables de edad y tipo de muestra.Resultados: se encontraron 944 casos, 931 remitidos como ASC-US y 13 como ASC-H, con edades entre 16 y 87 años; se incluyeron 939: 294 (31,3%) casos correspondieron a LEI o malignidad: 228 (24,28%) tuvieron LEI de bajo grado (BG), 62 (6,6%) LEI de alto grado (AG), 3 (0,32%) carcinomas escamocelulares y 1 (0,11%) adenocarcinoma. De los trece casos con ASC-H, 3 (23,1%) correspondieron a LEI-AG y 3 (23,1%) LEI-BG.Conclusiones: los hallazgos citológicos ASC-US o ASC-H en esta serie incluyen una proporción significativa de mujeres con riesgo de tener LEI o malignidad y permiten seleccionar un grupo particular de casos que ameritan un abordaje específico para definir su diagnóstico.
Trastornos del sueño relacionados con el climaterio femenino y su tratamiento
Authors: Escobar-Córdoba Franklin , Chica-Urzola Heydy Luz , Cuevas-Cendales Francisco
Published: April 2020

Objetivo: revisar los aspectos fisiológicos del sueño, el efecto de la menopausia sobre el sueño, el diagnóstico y el tratamiento de las alteraciones del sueño asociadas a la menopausia.Resultados: los trastornos del sueño son patologías cada vez más frecuentes en la población general, con importantes consecuencias sobre la calidad de vida de quien los padece, por esto deben ser juiciosamente estudiados, diagnosticados y tratados. En el caso de la mujer, estos trastornos pueden aparecer ligados a cambios hormonales importantes durante el climaterio y evolucionar hasta modificar su comportamiento habitual, volviéndose sintomáticos.Conclusiones: el tratamiento de estos TS es sintomático y la TRH es la más aceptada para las oleadas de calor. Para el insomnio transitorio se recomienda el uso de hipnóticos y para TS preexistentes, que progresan durante este periodo, se recomienda la interconsulta a medicina del sueño, con miras a que dicho tratamiento sea adecuado y específico. Ante la evidencia controversial o insuficiente de muchos de los tópicos del tratamiento, es necesaria la realización de estudios clínicos adicionales.
Traquelectomía radical vaginal con linfadenectomía pélvica por laparoscopia para cáncer de cérvix temprano: reporte de dos casos
Authors: Rodríguez Jorge Alexander , López José Duván
Published: April 2020

Introducción: el cáncer de cérvix es la neoplasia ginecológica más común en países en desarrollo donde las pacientes con deseo reproductivo no tenían en el pasado posibilidades quirúrgicas de tratar el cáncer y al mismo tiempo conservar la fertilidad. El objetivo de la presentación de estos casos es reportar la factibilidad de realizar el procedimiento en nuestro medio.Casos clínicos: se presentan dos casos de pacientes con cáncer de cérvix IA2 y IB1, de 29 y 24 años respectivamente, con deseo de conservar la fertilidad, a quienes se les realizó traquelectomía radical vaginal y linfadenectomía pélvica por laparoscopia con buen resultado quirúrgico.Conclusión: las técnicas de tratamiento mínimamente invasivas en pacientes con cáncer invasor de cérvix surgen como una alternativa para considerar cuando se quiere conservar la fertilidad.
Violencia contra la mujer. Análisis en el Instituto Materno Infantil de Bogotá, Colombia, 2005. Estudio de corte transversal *
Authors: López Sandra Milena , Gómez-Sánchez Pío Iván , Arévalo-Rodríguez Ingrid
Published: April 2020

Introducción: la violencia contra la mujer ocurre en todos los países y en todos los grupos sociales, culturales, económicos y religiosos. En nuestro país la violencia de pareja que afecta a la mujer ha venido aumentando, pero debido al alto subregistro las cifras oficiales no reflejan la magnitud real del problema.

Objetivos: estimar la prevalencia de violencia conyugal (física, psicológica y sexual) en mujeres atendidas en el Instituto Materno Infantil de Bogotá (IMI), así como examinar los factores relacionados con dicha problemática.

Método: estudio de corte transversal de 215 mujeres hospitalizadas y encuestadas de forma consecutiva desde el 1º de febrero hasta el 31 de agosto del 2005.

Criterios de inclusión: mujeres mayores de 18 años. Se excluyeron mujeres que no supieran leer y/o escribir, que no aceptaran ser parte de la investigación, o que por sus condiciones médicas no estuvieran en capacidad de contestar la encuesta. Se tuvieron en cuenta variables sociodemográficas, hallazgos clínicos y aspectos relacionados con la violencia, causas, expresiones y actitudes de denuncia. Para el procesamiento y el análisis se emplearon los programas Stata 8.0 y SPAD-N 4.5.

Resultados: la prevalencia de violencia física, psicológica y sexual fue de 22, 33 y 3%, respectivamente. Los seis diferentes grupos de pacientes obtenidos en el análisis muestran la aparición de la violencia física con la psicológica, por una parte, y la relación entre la violencia psicológica con la sexual. El consumo de alcohol es el factor más relacionado con la aparición de estos tipos de violencia. Mujeres que no han experimentado episodios de violencia tienen un porcentaje más bajo de amenaza de parto pretérmino que el promedio general.

Conclusiones: las diferentes clases de violencia contra la mujer, reportadas por las pacientes, presentan la complejidad de la problemática e invitan a evaluar los programas de atención que la combaten.
Prevalencia de causas de infertilidad en una clínica de nivel II de Cali, Colombia – 2002 a 2004*
Authors: Mondragón Cedeño Alba Lucía
Published: April 2020

Objetivos: describir la prevalencia de las causas de infertilidad en las usuarias del programa de Profamilia Fértil de Cali, Colombia y el tiempo de seguimiento.Materiales y métodos: estudio de corte transversal, instrumento de recolección de la información: historia clínica.Resultados: se estudiaron 1.389 mujeres entre el 2002 y 2004. El factor causal más frecuente fue el tubo peritoneal (49,4%), de estas el 60% asistió en busca de recanalización de las trompas por oclusión tubárica previa (OTB). El 63% de las mujeres solo consultaron una vez y el 19,3% volvieron a más de una consulta de seguimiento.Conclusiones: predominó el factor tubo peritoneal en esta institución relacionado con la obstrucción tubárica por esterilización quirúrgica.
Trombosis de seno venoso cerebral y posible asociación con anticuerpos antinucleares. Reporte de dos casos y revisión de la literatura
Authors: Cortés Y. Hernán , Herrera M. Mauricio , Rebolledo A. Mario
Published: April 2020

Se presentan dos pacientes posparto, con antecedente de preeclampsia, que consultaron por cefalea y síntomas neurológicos, en quienes se diagnosticó trombosis de los senos venosos cerebrales, con una posible asociación a presencia de anticuerpos antinucleares.Se hace una revisión de la literatura de la trombosis de los senos venosos durante el posparto con énfasis en el diagnóstico y las recomendaciones del tratamiento con anticoagulantes.Se recomienda la terapia anticoagulante por tres a seis meses. En ambas pacientes descritas se presentó un aumento de los títulos de anticuerpos antinucleares, por lo que surge la hipótesis de una posible asociación causal.
Aumento de la translucencia nucal y flujo reverso del ductus venoso en cardiopatía congénita. Reporte de un caso en Caracas, Venezuela
Authors: Sosa Cristian , Gómez Libardo , Bermúdez Carlos , Pérez-Wulff Juan
Published: April 2020

Introducción: el aumento de la translucencia nucal (TN) fetal aumentada, en la gestación entre las 11 y 14 semanas, es una expresión fenotípica común de anormalidades cromosómicas, incluyendo la trisomía 21. Sin embargo, incluso en ausencia de aneuploidía, el engrosamiento nucal es un dato relevante desde el punto de vista clínico, porque se asocia con un aumento en el resultado perinatal adverso causado por una variedad de malformaciones fetales, displasias, deformaciones, disrupciones y de síndromes genéticos. Se presenta este caso con el objetivo de resaltar la importancia de la TN como marcador de patologías diferentes de las aneuploidías cuando la misma se encuentra por encima del percentil 99.Discusión: una vez descartada la aneuploidía, el riesgo del resultado perinatal adverso no disminuye de forma estadística, si este engrosamiento nucal alcanza los3,5 milímetros o más(percentil 99).Este aumento del riesgo ocurre de manera exponencial a medida que aumenta la TN.Sin embargo, si el feto sobrevive, el riesgo de presentar una cardiopatía congénita es elevado. Por lo tanto, un ultrasonido entre las 20 a 22semanas puede revelar las diferentes anormalidades cardiacas.
Pure Elements and Dual Notions of Prime Elements in Lattice Modules
Authors: Aslankarayiğit Uğurlu Emel
Published: April 2020

This paper deals with the pure elements and the dual notions of prime elements (that is, second elements). For this, it introduces the definitions of second element and coprime element. Then it is shown that the concepts of the second element and coprime element are equivalent. Moreover, this study gives us a characterization of comultiplication modules. Finally, it defines pure elements and obtains the relation among pure, idempotent and multiplication elements.
The existence of housewives in the Instagram
Authors: Sjoraida Diah Fatma , Anwar Rully Khairul , Rizal Edwin , Rejeki Diah Sri
Published: April 2020

Background of the study: Social media and housewives have become an inseparable unity, especially in Karawang. Accessing social media is a routine that is always done every day. Existence or self-actualization is the reason housewives have social media accounts, one of the Instagram. The purpose of this study is to determine the motives of housewives have Instagram and to know the forms of interaction and content that are distributed to the public.Purpose: This study aims to determine the impact of the use of Instagram on consumptive behavior of housewives in Karawang.Method: This qualitative research uses a descriptive method by taking a location on a housewife in Karawang.Findings: The motive of housewives using Instagram is quite religious, that is entertainment, selling its business, product, socialization, and self-existence, the form of interaction and content distributed in Instagram is post photo with caption interesting, giving hashtag, and follow the trends in Instagram. The conclusion of this research is through Instagram, the housewife can show their existence to the environment to be seen and accepted well.Conclusion: 1) Instagram is a phenomenal social media among housewives because users are spoiled with various features available on Instagram, 2) the campus provides a large bandwidth so they can access Instagram more easily, and 3) the impact of expanding access to the internet becomes they are more consumptive to do transactions face to face.
LSTM Network and OCR Performance for Classification of Decimal Dewey Classification Code
Authors: Rosita Yesy Diah , Sukmaningtyas Yanuarini Nur
Published: April 2020

Background of the study: Giving book code by a librarian in accordance with the Decimal Dewey Classification system aims to facilitate the search for books on the shelf precisely and quickly. Purpose: The first step in giving code to determine the class of books is the principal division which has 10 classes.Method: This study proposed Optical Character Recognition to read the title text on the book cover, preprocessing the text, and classifying it by Long Short-Term Memory Neural Network. Findings: In general, a librarian labeled a book by reading the book title on the book cover and doing book class matching with the book guide of DDC. Automatically, the task requires time increasingly. We tried to classify the text without OCR and utilize OCR which functions to convert the text in images into text that is editable. BY the experimental result, the level of classification accuracy without utilizing OCR is higher than using OCR. Conclusion: The magnitude of the accuracy is 88.57% and 74.28% respectively. However, the participation of OCR in this classification is quite efficient enough to assist a beginner librarian to overcome this problem because the accuracy difference is less than 15%.
Understanding Perception and Motivation in Sharing Information by Digital Natives in Social Media
Authors: Nurpratama Muhammad Rifky
Published: April 2020

Background of the study: The phenomenon of sharing information by all members of the public, especially digital natives. The phenomenon of sharing information is most visible done on social media such as WhatsApp, Instagram and line. Information sharing activities seem easy to do, especially on social media with a variety of features that have been provided and a variety of information that is spread. Even sharing information can have an impact, both positive like increasing knowledge or negative impacts such as creating information hoaxes.Purpose: Not yet known explicitly actually what lies behind someone, especially the digital generation natives share information on social media. To find out what is the background of someone sharing information on social media, therefore this study wants to find out from the aspect of perception and motivation regarding information sharing activities carried out by digital natives on social media.Method: This research uses quantitative methods, while the test carried out is path analysis. The population and sample of this study were S2 students in Information Management and Library and S1 Faculty of Social and Politics UGM. The population was chosen because they want to know the differences in perceptions and motivations of digital generations from the perspective of the level of education and age, apart from the social aspects of each student in sharing information on social media.Findings: The results of this study found that the perception of MIP students' information sharing was higher than that of FISIPOL students, but on the contrary, the motivation to share information on FISIPOL students was higher than MIP students. The difference is based on the age difference of MIP students who are more mature than FISIPOL students so that their perceptions about sharing information are wiser, but the motivation of FISIPOL students is higher because sharing information is not only for formal matters but also for informal matters such as finding one's reputation and pursuing prizes.Conclusion: Digital natives' perception in sharing information on social media is sharing information because it is seen to be beneficial to other individuals, sharing information is fun and can invite others to jointly understand and discuss together the latest information. For digital natives motivation in sharing information on social media, intrinsically to meet self-satisfaction. Examples such as being able to add insight and can discuss with other individuals. Whereas extrinsically is the motivation to share information because it can help others, especially when the information they have is useful and worth sharing. In terms of information sharing activities themselves, the digital natives really understand and pay attention to the type of information and the quality of information that will be shared before they share it with a wide audience.
Reflection on the Translation Debates in History: Thinking Out of the Dichotomies
Authors: Xie Lili
Published: April 2020

With an overview of translation history, from the ancient Rome to modern times, from Western countries to Eastern countries, there were heated debates over translation principles or strategies, most of which revolved around the matter of literal translation or free translation. Many famous theorists advocated that literal translation was preferred than free translation; others disapproved that. However, either side failed to have a comprehensive prospective towards translation, because translation is actually a complex framework, involving many elements worth our attention. To do translation studies, the theories shall break the irrational mindset and jump out of dichotomies to gain an overall and objective understanding of translation.
The Potential Roles of Protein Functional Motifs in Coronavirus Infection
Authors: Sobhy Haitham
Published: April 2020

Although phylogenetic analysis shows coronaviruses (CoV) share similar genome sequences, CoVs encode different number of proteins (5 to 14). The newly isolated viruses harbour more proteins than the old ones. Therefore, identifying the functional protein unites will benefits to understand the molecular interactions of the virus, and then identify molecular targets for antiviral drug. Here, the comparative in-silico analysis of 33 coronavirus proteomes show that coronaviruses harbour diverse number of protein functional motifs. Coronaviruses harbour wide-range of motifs including those involved in integrin-binding and ESCRT pathway before virus budding. For example, SARS-CoV-2, but not SARS-CoV-1, encodes PPxY motif, which is required for virus entry and budding of HIV, influenza and adenoviruses. The quinolone inulding the antiviral FGI-104 is able to block ESCRT pathway and viral budding and has been used against HIV, HCV and Ebola virus.
Trends in symbiont-induced host cellular differentiation
Authors: Russell Shelbi , Ruelas Castillo Jennie
Published: April 2020

Bacteria participate in a wide diversity of symbiotic associations with eukaryotic hosts that require precise interactions for bacterial recognition and persistence. Most commonly, host-associated bacteria interfere with host gene expression to modulate the immune response to the infection. However, many of these bacteria also interfere with host cellular differentiation pathways to create a hospitable niche, resulting in the formation of novel cell types, tissues, and organs. In both of these situations, bacterial symbionts must interact with eukaryotic regulatory pathways. Here, we detail what is known about how bacterial symbionts, from pathogens to mutualists, control host cellular differentiation across the central dogma, from epigenetic chromatin modifications, to transcription and mRNA processing, to translation and protein modifications. We identify four main trends from this survey. First, mechanisms for controlling host gene expression appear to evolve from symbionts co-opting cross-talk between host signalling pathways. Second, symbiont regulatory capacity is constrained by the processes that drive reductive genome evolution in host-associated bacteria. Third, the regulatory mechanisms symbionts exhibit correlate with the cost/benefit nature of the association. And, fourth symbiont mechanisms for interacting with host genetic regulatory elements are not bound by native bacterial capabilities. Using this knowledge, we explore how the ubiquitous intracellular Wolbachia symbiont of arthropods and nematodes may modulate host cellular differentiation to manipulate host reproduction. Our survey of the literature on how infection alters gene expression in Wolbachia and its hosts revealed that, despite their intermediate-sized genomes, different strains appear capable of a wide diversity of regulatory manipulations. Given this and Wolbachia’s diversity of phenotypes and eukaryotic-like proteins, we expect that many symbiont-induced host differentiation mechanisms will be discovered in this system.
Anti-Angiogenesis and Immunotherapy: Novel Paradigms to Envision Tailored Approaches in Renal Cell-Carcinoma
Authors: Argentiero Antonella , Solimando Antonio Giovanni , Krebs Markus , Leone Patrizia , Susca Nicola , Brunetti Oronzo , Racanelli Vito , Vacca Angelo , Silvestris Nicola
Published: April 2020

Although decision making strategy based on clinico-histopathological criteria is well established, renal cell carcinoma (RCC) represents a spectrum of biological ecosystems characterized by distinct genetic and molecular alterations, diverse clinical courses and potential specific therapeutic vulnerabilities. Given the plethora of drugs available, the subtype-tailored treatment to RCC subtype holds the potential to improve patient outcome, shrinking treatment-related morbidity and cost. The emerging knowledge of the molecular taxonomy of RCC is evolving, whilst the antiangiogenic and immunotherapy landscape maintained and reinforced their potential. Although several prognostic factors of survival in patients with RCC have been described, no reliable predictive biomarkers of treatment individual sensitivity or resistance have been identified. In this review, we summarize the available evidence able to prompt more precise and individualized patient selection in well-designed clinical trials, covering the unmet need of medical choices in the era of next-generation anti-angiogenesis and immunotherapy.
COVID-19 and Crosstalk between the Hallmarks of Aging
Authors: Salimi Shabnam , Hamlyn John M.
Published: April 2020

Within the past several decades, the emergence of new viral diseases with more severe health complications and mortality, primarily in older adults with comorbidities, is evidence of an age-dependent, compromised bodily response to abrupt stress with concomitant reduced immunity. The emergence of new infectious coronaviruses such as SARS-CoV-2 has resulted in the coronavirus disease 2019 (COVID-19). The result is increased morbidity and mortality in persons with underlying chronic diseases and among those with compromised defense mechanisms, regardless of age and among older adults who are more likely to fit these categories. COVID-19 appears to be primarily an upper respiratory disease. While SARS-CoV-2 is highly virulent, there is variability in the severity of the disease and its complications in humans. Severe pneumonia, acute respiratory distress syndrome (ARDS), lung fibrosis, cardiac t complication, acute kidney injury, hospitalization, and high mortality have been reported in older adults with COVID-19, that result from pathogen-host interactions. Here, we review potential interactions of the coronavirus and host cellular responses in relation to hallmarks of aging including genomic instability, telomere attrition, impaired autophagy, mitochondrial dysfunction, innate immunosenescence, inflammation and inflammasomes, adaptive immunosenescence, and epigenetic alterations, that likely contribute to the increased pathophysiological responses to SARS-CoV-2 among older adults.
Feasibility of Known RNA Polymerase Inhibitors as Anti-SARS-CoV-2 Drugs
Authors: Neogi Ujjwal , Hill Kyle J. , Ambikan Anoop T. , Heng Xiao , Quinn Thomas P. , Byrareddy Siddappa N. , Sönnerborg Anders , Sarafianos Stefan G. , Singh Kamal
Published: April 2020

Coronaviruses (CoVs) are positive-stranded RNA viruses that infect humans and animals. Infection by CoVs such as HCoV-229E, -NL63, -OC43 and -HKUI1 leads to the common cold, short lasting rhinitis, cough, sore throat and fever. However, CoVs such as Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV), Middle East Respiratory Syndrome Coronavirus (MERS-CoV), and the newest SARS-CoV-2 (the causative agent of COVID-19) lead to severe and deadly diseases with mortality rates ranging between ~1 to 35% depending on factors such as age and pre-existing conditions. Despite continuous global health threats to human, there are no approved vaccines or drugs targeting human CoVs, and the recent outbreak of COVID-19 emphasizes an urgent need for therapeutic interventions. Using computational and bioinformatics tools, here we present the feasibility of reported broad-spectrum RNA polymerase inhibitors as anti- SARS-CoV-2 drugs targeting its main RNA polymerase, suggesting that investigational and approved nucleoside RNA polymerase inhibitors have potential as anti-SARS-CoV-2 drugs. However, we note that it is also possible for SARS-CoV-2 to evolve and acquire drug resistance mutations against these nucleoside inhibitors.
Experimental Research and Numerical Analysis of the Elastic Properties of Paper Cell Cores Before and After Impregnation
Authors: Słonina Michał , Dziurka Dorota , Smardzewski Jerzy
Published: April 2020

The research hypothesis states that the impregnation of the honeycomb paper core of lightweight sandwich panels with modified starch, sodium silicate and LiquidWood® resin has a significant effect on the elastic properties of it. In the study, a recycled paper was used in three thicknesses, seven types of cell shapes, including two after numerical optimization and three types of impregnating agents. The method of digital image analysis determined the elastic constants of manufactured paper cores, which were subjected to axial compression in two directions. Based on the experimental results, elastic constants of the cores were calculated and compared with the results of numerical calculations. It has been shown that each of the impregnating solutions used improves the stiffness of the paper core. The best results were obtained for LiquidWood® epoxy resin and modified starch. An important parameter of cell geometry affecting their rigidity is the angle of the cell wall φ, as well as the arrangement of the common cell wall in relation to the direction of load. The numerical models developed were positively verified.
Sustainable and Dynamic Competitiveness Towards Technological Leadership of Industry 4.0: Implications for East African Community
Authors: Bongomin Ocident , Nganyi Eric Oyondi , Abswaidi Mfanga Ramadhani , Hitiyise Emmanuel , Tumusiime Godias
Published: April 2020

The war to technology and economic power have been the driver for industrialization in most developed countries. The first industrial revolution (industry 1.0) earned millions for textile mill owners while the second industrial revolution (industry 2.0) opened the way for tycoons and captains of industry like John D. Rockefeller, J.P. Morgan and Henry Ford. The third industrial revolution (industry 3.0) engendered technology giants like Apple and Microsoft, and made magnates of men like Steve Jobs and Bill Gates. Now, the race for the fourth industrial revolution (industry 4.0) is on and there is no option, every country whether developed or developing must participate. Many countries have positively responded to industry 4.0 by developing strategic initiatives to strengthen industry 4.0 implementation. Unlocking the country’s potential to industry 4.0 has been of interest to researchers in the recent past. However, the extent to which industry 4.0 initiatives being launched globally has never been revealed. Therefore, the present study aimed at exploring industry 4.0 initiatives through comprehensive electronic survey of literature to estimate the extend of its launching in different regions. Inferences were drawn from industry 4.0 initiatives in developed nations to be used as the recommendations for East Africa Community. Results of the survey revealed that 117 industry 4.0 initiatives have been launched in 56 countries worldwide consisting of five regions. The country’s percent of industry 4.0 initiatives as per region were: Latin America and the Caribbean (15%), North America (40%), Europe (53%), Asia and Oceania (25%), Middle East and Africa (11%). While the worldwide percent was estimated as 25%. This revealed that the big gap is existing between countries towards the race for industry 4.0.
Coronavirus Disease 2019 (COVID-19): Current Literature and Status in India
Authors: Jamwal Anbesh , Bhatnagar Sumedha , Sharma Prakarti
Published: April 2020

COVID-19 disease outbreak was started in the December, 2019 in the Wuhan city of China which is also known as the largest transportation hub of China. During the spring festival of China the situation become epidemic. Soon, the virus is imported to many regions including the low income countries. Till now, 234073 infected reported cases of the COVID-19 in the world with the total of 9840 deaths (March 20, 2020). The common symptoms of the COVID-19 are the cough, high fever, sore throat, fatigue and breathlessness. The disease is found to be mild in most of the people, some of cases reported to the pneumonia also with multi organ dysfunction and acute ARDS (acute respiratory distress syndrome). It is found that the incubation period for the infection is 2-14 days which is usually 4 days in maximum of cases. India has reported 283 cases of COVID-19 infections till now with 4 deaths. India is still at stage 2 on local transmission as per WHO report 60. WHO reported 60 clearly stated that there is no community transmission occurred in India yet which can be prevented by the avoiding mass gathering and proper screening of the people. Govt. of India has taken many initiatives to minimize the spread of COVID-19 infection in the country. The infection rate of the COVID-19 in India remains low related to population size of the country. It is because of fast government action to quarantine the suspected people and shut down all its borders. There is a great slowdown in the global economy due to COVID-19 attack which is likely to costs around $1 trillion. The spread of COVID-19 infection can be reduced by minimizing the H-H transmissions. Still there is need of Anti-n-CoV drug development which can replace the supporting therapies for the treatment of infection.
Detecting the COVID-19
Authors: Pokhrel Pravin , Hu Changpeng , Mao Hanbin
Published: April 2020

The COVID-19 pandemic has created huge damage to society and brought panics around the world. Such panics can be ascribed to the seemingly deceptive features of the COVID-19: compared to other deadly viral outspreads, it has medium transmission and mortality rates. As a result, the severity of this virus was deeply underestimated by the society at the beginning of the outbreak. Based on this, in this review, we define the viruses with features similar to those of COVID-19 as the Panic Zone viruses. To contain those viruses, accurate and fast diagnosis followed by effective isolation and treatment of patients are pivotal at the early stage of virus breakouts. This is especially true when there is no cure or vaccine available for a transmissible disease, which is the case for current COVID-19 pandemic. As of April 2020, more than one hundred kits for the COVID-19 diagnosis on the market are surveyed in this review. It is of critical importance to rationally use these kits for the efficient management and control of the Panic Zone viruses. Therefore, we discuss guidelines to select diagnostic kits at different outbreak stages of the Panic Zone viruses, COVID-19 in particular. While it is of utmost importance to use detection kits with low false negativity at the early stage of an outbreak, the low false positivity gains its importance at later stages of the outbreak. Finally, since a massive attack from a viral pandemic requires a massive defense from the whole society, we urge both government and private sectors to research and develop affordable point-of-care (POC) detection kits, which can be used massively by the general public (and therefore called as massive POC) to contain Panic Zone viruses in future.