layer-by-layer assembly, polyelectrolyte, membrane transport, solution diffusion model, nanofiltration, Science (General), Q1-390, Social sciences (General), and H1-99

Thin Film Composite (TFC) Polyelectrolyte Multilayer (PEM) Nanofiltration (NF) membrane consisting of multilayer of Poly(diallyl dimethyl ammonium chloride) (PDAC) and Poly(sodium 4-styrenesulfonate) (PSS) deposited on polyethersulfone (PES) support was prepared using spin-assisted layer by layer assembly (SA-LbL). This work is an effort to discover new material having better characteristics and performance than commercial polyamide (PA) NF membrane. Two main operating conditions namely temperature and salt concentration were investigated and the effect of both on membrane performance was studied. Solution-diffusion Film Model (SDFM) membrane employing two fitting parameters i.e. membrane salt permeability (PS) and stagnant layer salt permeability PS(d), was used to explain membrane transport across the membrane. The result showed an good agreement between experimental and observed rejection rate suggests PEM membrane behaves similar to typical solution diffusion-type composite membrane and SDFM can be used to predict the membrane performance and behavior.

Science (General), Q1-390, Social sciences (General), and H1-99

Cation and industrial pollutant anions are removed from wastewater using organic cation and anion exchange resin. "Extracellular Polymeric Substance" (EPS) from bacterial extraction can accumulate cation and anion elements through biosorption by adsorption mechanism, ion exchange, formation of complex compounds and hydrogen bonds. EPS can be used as an biosorbent and ion exchange bioresin replacing organic resins, because EPS contains organic functional groups that are negatively charged (RCOOH, ROPO3H, ROPO3Na, ROSO3H, ROSO3Na, etc.) cation absorbers and positively charged (ROH, RCNH2HCOOH, etc.) anion absorber. EPS consists of 40-95% polysaccharide compounds, protein 1-60%, nucleic acids 1-10%, lipids 1-10% and the remaining amino acid polymers and other compounds. The tannery industry produces trivalent (Cr+3) chromium pollutants at levels of 15.2 ppm and hexavalent (CrO4-2 or Cr2O7-2) levels of 0.77 ppm which exceeds the standard quality for a total Cr of 0.6 ppm. Cr pollutants are very dangerous for human health. Research had been done on the use of immobilized EPS bioresin in epoxy polymers for chromium binding. EPS was extracted from bacterial activated sludge by centrifugation at 9000 rpm for 20 minutes at 4°C, the filtrate was EPS. The analysis showed EPS content were 16% fat, 12% carbohydrate, and 16% protein. The functional group analysis results with infrared ray spectroscopy (FTIR) showed EPS containing chemical bonds such as -CH, -OH, -NH, and -C=O which proved that EPS extraction contained RCOOH, ROH, and RCNH2HCOOH functional components which were exchanging components cations and anions. Epoxy polymers were prepared by mixing bisphenol A monomers and 1: 1 ratio epichlorohydrin. Immobilized EPS double ion exchange biorecin in epoxy polymers was prepared by mixing 200 mg EPS and 1800 mg epoxy. The binding of chromium ions in the resin was carried out by recirculating the chromium solution through a burette column filled with 2 rams of bioresin at pH 5, 6 and 7. The optimum results gave chromium ion absorption efficiency of 89.20% at pH 5. Column operations could be optimized by varied the amount of bioresin used.

Science (General), Q1-390, Social sciences (General), and H1-99

A three-dimensional pore structure on activated carbon derived from hierarchically bamboo stem was synthesized in the monolithic form for increased applicability as a supercapacitor electrode. The preparation involved two step carbonizations, using a chemical activation at different concentrations. Subsequently, the morphology, chemical content, specific surface area and pore size distribution, as well as crystalline degree were evaluated with scanning electron microscopy, energy X-ray (EDX), N2 sorption and X-ray diffraction, respectively. Therefore, cyclic voltammetry (CV) was used to assess the electrochemical performance, in a two electrode system. The result shows the significant impact of the three-dimensional structure on electrochemical performance, and the optimized sample exhibited specific capacitance of 168.8 F g-1, energy density of 23.44 Wh kg-1, and power density of 84.46 W kg-1.

adsorption, chitosan, methylene blue, montmorillonite, silylation, Science (General), Q1-390, Social sciences (General), and H1-99

Industrialization plays important role in the economy of developing countries, including increasing community welfare. However, the presence of poorly industries waste disposal system has negative impact to the environment. Therefore, it is necessary to overcome this problem with low-cost technology, called adsorption. In this research, silylated-montmorillonite (sMMt) has been successfully prepared as supporting material for adsorption of methylene blue by chitosan. The sMMt was characterized by FTIR, XRD, and elemental mapping techniques. The chitosan/sMMt composites were prepared through dissolution-precipitation method and produced rod-like morphology as observed by SEM. The adsorption process was carried out in a batch method by studying the pH and the adsorption contact time. The adsorption kinetic mechanism of the chitosan/sMMt nanocomposite followed pseudo-second order rather than Lagergren model indicating chemisorption predominant. The addition of silylated-montmorillonite into chitosan enhanced the methylene blue dye removal performance, which evidenced by improving Qe values by 10% compared to chitosan.

adsorption isotherm, carbon, distribution particles, pineapple peel, Science (General), Q1-390, Social sciences (General), and H1-99

The objective of this study was to investigate isotherm adsorption of carbon microparticles from pineapple peel waste. Carbon microparticles were prepared by carbonizing pineapple peel waste at 215-250°C and grinding using a saw-milling process. To investigate adsorption properties of carbon microparticles, experiments were done by evaluating adsorption of curcumin (as a model of adsorbate) in the ambient temperature and pressure under constant pH condition. To confirm the adsorption characteristics, carbon particles with different sizes (i.e., 100, 125, and 200 ?m) were tested, and the adsorption results were compared with several standard isotherm adsorption models: Langmuir, Freundlich, Temkin, and Dubinin- Radushkevich. To support the adsorption analysis, several characterizations (i.e., optical microscope, sieve test, and Fourier transform infrared analysis) were conducted. The adsorption test showed that the adsorption profile is fit to the Freundlich model for all variations, indicating the multilayer adsorption process on heterogeneous surfaces and interactions between adsorbate molecules. The results from other isotherm models also confirmed that the adsorption process occurs physically via Van der Waals force in binding adsorbate on the surface of adsorbent.

text classification, image classification, text-image classification, convolutional neural network, Science (General), Q1-390, Social sciences (General), and H1-99

File scanned documents are commonly used in this digital era. Text and image extraction of scanned documents play an important role in acquiring information. A document may contain both texts and images. A combination of text-image classification has been previously investigated. The dataset used for those research works the text were digitally provided. In this research, we used a dataset of high school diploma certificate, which the text must be acquired using optical character recognition (OCR) method. There were two categories for this high school diploma certificate, each category has three classes. We used convolutional neural network for both text and image classifications. We then combined those two models by using adaptive fusion model and weight fusion model to find the best fusion model. We come into conclusion that the performance of weight fusion model which is 0.927 is better than that of adaptive fusion model with 0.892.

candida albicans, microencapsulation, propolis, spray drying, Science (General), Q1-390, Social sciences (General), and H1-99

Propolis is a mixture of resin and saliva of Tetragonula spp. that have antifungal activity. The purpose of this study was to develop spray-dried microcapsule propolis (SDMP) and to analyze its antifungal activity to Candida albicans. The SDMP was obtained using a spray drying method by maltodextrin and gum arabic coating. The antifungal activity of SDMP of rough propolis (taken from the outside beehive) and smooth propolis (taken from the inside beehive) was analyzed. The macroscopic characterization showed that SDMP has a powder form with brownish-yellow color. The microscopic characterization showed SDMP has a spherical uniform particle shape with particle size 9.32 - 14.61 µm. The encapsulation efficiency of smooth and rough SDMP was 81.22% and 83.04%; moisture content 5.58% and 5.84%; water solubility 98.19% and 98.31%, respectively. The microbial inhibitory concentration to C. albicans was the diameter of 6.33±1.5 to 10±2.5 mm. SDMP displayed remarkable activity in the assays against C. albicans.

stem cell, transcription factor, recombinant protein, induced pluripotent stem cells, Science (General), Q1-390, Social sciences (General), and H1-99

The four transcription factors OCT4, SOX2, KLF4 and c-MYC are highly expressed in embryonic stem cells (ESC) and their overexpression can induce pluripotency, the ability to differentiate into all cell types of an organism. The ectopic expression such transcription factors could reprogram somatic stem cells become induced pluripotency stem cells (iPSC), an embryonic stem cells-like. Production of recombinant pluripotency factors gain interests due to high demand from generation of induced pluripotent stem cells in regenerative medical therapy recently. This review will focus on demonstrate the recent advances in recombinant pluripotency factor production using various host.

acoso sexual, deporte, educación superior, género, sexual harassment, sport, higher education, gender, Social Sciences, Social sciences (General), and H1-99

El hostigamiento y el acoso sexual (HAS), en las últimas décadas, se han reconocido como problemáticas presentes en las Instituciones de Educación Superior (IES). Sin embargo, los estudios sobre HAS, específicamente, en el deporte universitario, son escasos. El objetivo de este artículo es analizar el tipo de conductas de hostigamiento y acoso sexual que se presentan de manera diferencial por sexo y selección deportiva en la Universidad Autónoma de Yucatán (UADY). Los datos que se presentan se han extraído de las experiencias y percepciones de HAS de una muestra total de 46 estudiantes-deportistas de 5 diferentes selecciones de la UADY. Participaron 23 mujeres y 23 hombres con una media de edad de 20 años. La metodología utilizada es de corte mixto, las técnicas e instrumentos fueron la observación de tipo no participante, la Escala de Acoso Sexual (Tuñón, Evangelista y Tinoco, 2011) y el Cuestionario sobre Hostigamiento Sexual fue elaborado por Volkwein et al. (1997). Los resultados obtenidos muestran que sí existe la presencia de conductas catalogadas como hostigamiento y acoso sexual en las prácticas deportivas de la UADY, sin embargo, no se perciben como tal y son naturalizadas en las interacciones sociales de la población.

gamonal, comunicación, criminalización, movimientos sociales, violencia, communication, criminalization, social movements, violence, Social Sciences, Social sciences (General), and H1-99

El presente trabajo tiene como objetivo analizar la cobertura informativa realizada por el medio de comunicación Antena 3 TV (Grupo Atresmedia) sobre las movilizaciones sociales ocurridas en Gamonal (Burgos) a principios del 2014. A través de una metodología que alterna métodos cuantitativos y cualitativos, se estudian los procesos productivos mediáticos de construcción de la información y los discursos integrados en los 19 vídeo-noticias que dicho corporativo desarrolló para retransmitir los sucesos. Los resultados muestran un proceso de criminalización mediática hacia el movimiento social por medio de un porcentaje alto de tratamiento de contenidos relacionados con la violencia física y como parte de intereses sistémicos latentes que tienden a la reproducción y legitimación del sistema.

imaginación, entorno residencial, clases medias altas, segregación urbana, imagination, residential environment, middle classes, urban segregation, Social Sciences, Social sciences (General), and H1-99

El presente artículo se propone evaluar el papel que desempeña la imaginación dentro de los procesos de formación de la clase social a través de su ocupación del entorno residencial, y lo hace desde el detonante de la construcción de un viaducto para la Línea 3 del Tren Ligero a través del vecindario de clase media alta de Jardines del Country en el Área Metropolitana de Guadalajara. El artículo está basado en la realización de entrevistas en profundidad y observación de campo. En el trabajo se muestra cómo las noticias y primeras intervenciones sobre la construcción de esa infraestructura pusieron en marcha procesos de imaginación que ayudaron a que los habitantes reforzaran su condición de clase media alta como residentes de un entorno residencial privilegiado. En particular, los sujetos de estudio dirigieron sus proyecciones hacia la forma como mantener o recomponer su segregación respecto al resto de clases sociales, y como poder experimentar y practicar los futuros espacios de su vecindario.

desprotección, maltrato físico, maltrato psicológico, negligencia, violencia sexual, child vulnerability, physical abuse, psychological abuse, malpractice, sexual violence, Social Sciences, Social sciences (General), and H1-99

En España, los servicios sociales se caracterizan por la descentralización, por lo que son las distintas comunidades autónomas las que los gestionan. Esta característica provoca, en ocasiones, diferencias territoriales cuando se aborda un asunto social. Cuando se trata de intervenir en una familia con menores en riesgo o en situación de desprotección, a pesar de existir legislación estatal, esta descentralización provoca cierta disparidad entre comunidades. A través de los diferentes manuales que han publicado las distintas comunidades autónomas usados por los profesionales de servicios sociales para detectar e intervenir en casos de desprotección o riesgo en la infancia, en este artículo se analizan cuatro tipos de desprotección infantil –maltrato físico, maltrato psicológico, negligencia física, negligencia psicológica y violencia sexual– con el objetivo de evidenciar las diferencias que existen en definiciones o indicadores de riesgo de unos manuales a otros, lo cual podría provocar diferencias en las la evaluación de los casos entre los diferentes territorios.

sexo comercial, masculinidad, estigma, carrera moral, foros virtuales, commercial sex, masculinity, stigma, moral career, virtual forums, Social Sciences, Social sciences (General), and H1-99

La masificación del feminismo ha puesto nuevamente a la sexualidad en el centro de atención y se ha reavivado el debate sobre la prostitución. En este contexto, la campaña anti-trata responsabiliza a los varones que pagan por sexo, llamándolos “prostituyentes” y cuestionando su masculinidad bajo la idea de que los “hombres de verdad no compran mujeres”. Sin embargo, aun hay poca investigación empírica, en particular en nuestra región no se han estudiado los procesos por los cuales varones que pagan por sexo pasan a convertirse en clientes habituales. A partir de una etnografía virtual en dos foros argentinos de comercio sexual y de entrevistas en profundidad con varones que pagan por sexo, nos proponemos entender no sólo cómo un sujeto se torna un “cliente”, sino cómo se torna un “gatero” –según la jerga local–, es decir, un cliente que se reconoce en esa posición y forma parte de una comunidad. Llegar a ser un “gatero” involucra una serie de aprendizajes, internalización de pautas y valores, en estos procesos analizamos distintas ambivalencias y tensiones que los atraviesan. Buscamos entender cómo se produce una imagen del yo de estos varones que se va desplazando de algunos mandatos que marcan el desarrollo de la “hombría”.

clima laboral, satisfacción laboral, análisis estadístico, laboral climate, job satisfaction, statistical analysis, Social Sciences, Social sciences (General), and H1-99

El objetivo de esta investigación es analizar la relación entre clima y satisfacción laboral en el personal de una dependencia gubernamental, ubicada en la ciudad de Coatzacoalcos, México. El estudio se ha desarrollado de manera descriptiva y correlacional. Se utilizó una cédula de datos y las Escalas de Clima Laboral y de Satisfacción Laboral. Los resultados resaltan que los trabajadores se encuentran en mayor proporción en un clima laboral desfavorable y una satisfacción regular, de acuerdo al género, se observa que las mujeres se encuentran en mayor proporción en un nivel de clima laboral desfavorable. Este estudio permite determinar un método alternativo para la evaluación entre clima y satisfacción laboral, empleando modelos de ajuste que permiten ejercer inferencias de mayor relevancia.

culturas políticas, américa latina, izquierda, derecha, transición política, political cultures, latin america, left, right, political transition, Social Sciences, Social sciences (General), and H1-99

El objetivo del presente artículo es analizar la situación actual de la política representativa en América Latina, en el marco del proceso de restauración de partidos y/o coaliciones pertenecientes a la derecha política, tomando en consideración cambios estructurales proyectados en las siguientes fases del proceso de modernización capitalista. Metodología: estudio descriptivo de carácter teórico y reflexivo, con la revisión de la literatura sobre las culturas políticas, enfocado en el “mito fundacional” de las transiciones a la democracia. La estructura se sostiene sobre una breve contextualización del fenómeno de retroceso electoral de las izquierdas, para posteriormente profundizar, desde la categoría de las culturas políticas, las transiciones a la democracia en la región y su impacto en la consolidación de dispositivos jurídicos, políticos y culturales que favorecieron la desmovilización y la inmovilidad social. Finalmente, los resultados del análisis arrojan que las izquierdas en América Latina se enfrentan a un período de resignificación profundo, debiendo responder al enorme desafío de repensar las relaciones entre el Estado, sociedad y economía, en un esfuerzo por superar definitivamente los relatos explicativos y legitimadores propios del mito fundacional de la derrota de las dictaduras y la transición a las democracias.

conductor, creencia, peatón, normas, infracción, driver, belief, pedestrian, rules, infringement, Social Sciences, Social sciences (General), and H1-99

Este artículo presenta un trabajo de investigación acerca de la problemática de los atropellos a peatones y choques entre vehículos que ocurren como consecuencia de la adopción de conductas violatorias de las normas en Argentina y Chile. Se estima que estos comportamientos desviados de la norma intervienen en el 90% de las muertes de los transeúntes en ocasión del tránsito. El principal objetivo de este trabajo se enfocó en identificar y comprender creencias en torno a la otredad, a partir de las cuales cobra sentido la adopción de comportamientos riesgosos en el tránsito. Se propuso el empleo de una metodología cualitativa cuyo interés se centra en la interpretación de los hechos humanos. En este contexto, se desarrolló el procedimiento analítico propuesto por la teoría fundamentada. Se utilizó una investigación de tipo exploratoria que permitió identificar situaciones en las que los transeúntes adoptan conductas transgresoras de la normativa vial y reconstruir las categorías específicas que los participantes emplearon en la conceptualización de sus propias experiencias viales. El artículo concluye con una reflexión acerca del sentido hegemónico que adquiere la voluntad propia en el incumplimiento de normas por parte de transeúntes.

Knowledge management, Knowledge storage, Knowledge diffusion, Knowledge generation, Firm innovation, Services, History of scholarship and learning. The humanities, AZ20-999, Social sciences (General), and H1-99

This study empirically examines the relationship between knowledge management practices and firm innovation in the context of service firms in developing countries. The research also examines the mediating role of knowledge application in the relationship between knowledge management practices and firm innovation. From the literature review, this research develops a conceptual model that hypothesises a positive and significant relationship between knowledge generation, knowledge storage, knowledge diffusion, knowledge application and firm innovation. This research elicited responses using a questionnaire from a sample of 293 service firms in Nigeria. A drop-off-pick-up (DOPU) technique was used to obtain the data. The data was analysed using Structural Equation Modeling (SEM). The findings show that knowledge management practices contribute to firm innovation, both directly and indirectly. The results show that knowledge generation, storage and application have significant and positive effect on firm innovation. The findings also show that knowledge application mediates the relationship between knowledge generation, diffusion, storage and firm innovation. The findings imply that knowledge management practices contribute to innovation as a hierarchy, with the link through knowledge application having the greatest impact on firm innovation.

Employee branding dimensions, Customer-contact employees, Luxury chain hotels, Northern India, History of scholarship and learning. The humanities, AZ20-999, Social sciences (General), and H1-99

The current research adds to the employee branding literature by building a conceptual framework to identify key employee branding dimensions in the context of the Indian hospitality industry that has been overlooked by the previous literature. A survey-based approach is employed on a sample of 421 customer-contact employees of the top ten luxury chain hotels, operating in five major tourist destinations of Northern India. The main thrust of the study is to gauge employees' perspectives concerning internal and external brand management efforts pursued by luxury chain hotels. Thus, a conceptual model was designed and tested through confirmatory factor analysis using Analysis of Moment Structures (AMOS v. 20). After reviewing the extant literature and conducting an empirical investigation, the study validates employee branding as a five-dimensional first-order reflective construct namely perceived brand-centred human resource management, perceived internal brand communication, perceived brand-specific transformational leadership, perceived brand-oriented support and perceived external brand prestige. The paper concludes with discussion, implications, provides limitations and directions for further research.

Franchising company, Imprinting effect, Dual distribution, History of scholarship and learning. The humanities, AZ20-999, Social sciences (General), and H1-99

This study aims to conceptualize how the initial conditions of firms at the start of franchising affect the equilibrium level of franchising. Based on the study of dual distribution, we suggest testable propositions.The equilibrium proportion of franchised units in a chain might depend on the initial and current system size, the initial capital, and the degree of geographical dispersion. Also is proposed the moderating effect of age between the equilibrium proportion of franchised units in a chain and the initial system size, the initial capital and the degree of geographical dispersion.

Customers’ purchasing intention, Knowledge sharing behavior, Social capital, Social commerce, Social interaction theory, History of scholarship and learning. The humanities, AZ20-999, Social sciences (General), and H1-99

In this research, we identify factors influencing the behavior of knowledge sharing and customer purchasing intention based on two theories of social capital and social interaction. The conceptual model, designed based on theoretical foundations, includes the dimensions of these two theories. Moreover, knowledge/information sharing is considered as a moderate variable and is attempted to examine the relationship between these variables and customers’ purchase intention in the context of social commerce. Statistical sample is 254 individuals, who have bought more than 5 times from social commerce sites. The results show that the dimensions of social capital theory and social interaction theory have a significant relationship with knowledge/information sharing. Additionally, “knowledge/information sharing” has a mediating role in the proposed model.