bluuebunny/crossref_metadata_2025 huggingface dataset:
An Internet-Based HIV Self-Testing Program to Increase HIV Testing Uptake Among Men Who Have Sex With Men in Brazil: Descriptive Cross-Sectional Analysis
Authors: De Boni Raquel Brandini , Veloso Valdilea Gonçalves , Fernandes Nilo Martinez , Lessa Flavia , Corrêa Renato Girade , Lima Renato De Souza , Cruz Marly , Oliveira Juliane , Nogueira Simone Muniz , de Jesus Beto , Reis Toni , Lentini Nena , Miranda Raquel Lima , Bingham Trista , Johnson Cheryl C , Barbosa Junior Aristides , Grinsztejn Beatriz
Published: June 2019

Background

Approximately 30% of people living with HIV worldwide are estimated to be unaware of their infection. HIV self-testing (HIVST) is a strategy recommended by the World Health Organization to increase access to and uptake of testing among key populations who are at high risk for HIV infection.

Objective

This study aimed to describe the development and feasibility of a free, anonymous, internet-based HIVST strategy designed for men who have sex with men in Curitiba, Brazil (electronic testing [e-testing]).

Methods

The project was developed under the scope of the “A Hora é Agora” (The Time is Now) program. Individuals aiming to request an HIVST package (two tests each) answered an anonymous 5-minute questionnaire regarding inclusion criteria and sexual risk behavior. Eligible individuals could receive one package every 6 months for free. Website analytics, response to online questionnaires, package distribution, and return of test results were monitored via a platform-integrated system.

Results

Between February 2015 and January 2016, the website documented 17,786 unique visitors and 3218 completed online questionnaires. Most individuals self-reported being white (77.0%), young (median age: 25 years, interquartile range: 22-31 years), educated (87.3% completed secondary education or more), and previously tested for HIV (62.5%). Overall, 2526 HIVST packages were delivered; of those, 542 (21.4%) reported a result online or by mail (23 reactive and 11 invalid). During the study period, 37 individuals who reported using e-testing visited the prespecified health facility for confirmatory testing (30 positive, 7 negative).

Conclusions

E-testing proved highly feasible and acceptable in this study, thus supporting scale-up to additional centers for men who have sex with men in Brazil.
The Impact of Monetary Incentives on Physician Prosocial Behavior in Online Medical Consulting Platforms: Evidence From China
Authors: Jing Dong , Jin Yu , Liu Jianwei
Published: June 2019

Background

In online medical consulting platforms, physicians can get both economic and social returns by offering online medical services, such as answering questions or sharing health care knowledge with patients. Physicians’ online prosocial behavior could bring many benefits to the health care industry. Monetary incentives could encourage physicians to engage more in online medical communities. However, little research has studied the impact of monetary incentives on physician prosocial behavior and the heterogeneity of this effect.

Objective

This study aims to explore the effects of monetary incentives on physician prosocial behavior and investigate the moderation effects of self-recognition and recognition from others of physician competence.

Methods

This study was a fixed-effect specification-regression model based on a difference-in-differences design with robust standard errors clustered at the physician level using monthly panel data. It included 26,543 physicians in 3851 hospitals over 133 months (November 2006-December 2017) from a leading online health care platform in China. We used the pricing strategy of physicians and satisfaction levels to measure their own and patients’ degree of recognition, respectively. Physicians’ prosocial behavior was measured by free services offered.

Results

The introduction of monetary incentives had a positive effect on physician prosocial behavior (β=1.057, P<.01). Higher self-recognition and others’ recognition level of physician competence increased this promotion effect (γ=0.275, P<.01 and γ=0.325, P<.01).

Conclusions

This study explored the positive effect of the introduction of monetary incentives on physician prosocial behavior. We found this effect was enhanced for physicians with a high level of self-recognition and others’ recognition of their competence. We provide evidence of the effect of monetary incentives on physicians’ prosocial behaviors in the telemedicine markets and insight for relevant stakeholders into how to design an effective incentive mechanism to improve physicians’ prosocial engagements.
Tracking knowledge evolution in cloud healthcare literature: a cybermetrics study (Preprint)
Authors: Gu Dongxiao , Yang Xuejie , Deng Shuyuan , Wang Xiaoyu , Wu Jiao , Guo Jingjing
Published: June 2019

BACKGROUND

With the continuous development of the Internet and the explosive growth of data, big data technology emerged. The development and application of cloud computing technology provides better storage and analysis of data. The development of cloud healthcare provides a more convenient and effective solution for people’s health. To study the knowledge evolution in the field of cloud healthcare and the research hot topics is becoming one of important issues in medical informatics area. The scholars in medical informatics community need to understand the panorama of the evolution of cloud healthcare research, as well as possible trends in cloud healthcare field as important reference for their future research work.

OBJECTIVE

Drawing on the cloud healthcare literature, this paper aims at revealing the development and evolution of research themes in cloud healthcare through knowledge map and common word analysis.

METHODS

A total of 2878 articles in the cloud healthcare literature were retrieved from the Web of Science database. We used cybermetrics to analyze and visualize the keywords in these articles. In particular, we create a knowledge map to show the evolution of cloud healthcare research. We use co-word analysis to reveal the hot topics in cloud healthcare research and their evolution process.

RESULTS

The evolution and development of cloud healthcare services are shown. And From 2007 to 2009 (Phase I), most scholars applied cloud computing to the medical field mainly to reduce cost; and the technologies used are primarily grid computing and cloud computing. During 2010-2012 (Phase II), scholars began to pay attention to the security of cloud systems. During 2013-2015 (Phase III), the medical informatization created the big data for health services. During 2016-2017 (Phase IV), machine learning and mobile technologies are introduced into the medical field.

CONCLUSIONS

The research of cloud healthcare has been vigorously developing worldwide, and technologies used in cloud health research are becoming diverged and smart simultaneously. Cloud-based mobile health, cloud-based smart health, as well as the security of cloud health data and systems will be three possible trends in the future development of the cloud healthcare field.
Exploring an Existing Weight Management App for Use With Adolescents and Young Adults With Spina Bifida: Usability Study (Preprint)
Authors: Stiles-Shields Colleen , Garcia Brittney , Villota Kimberly , Wartman Elicia , Winning Adrien M , Holmbeck Grayson N
Published: June 2019

BACKGROUND

Adolescents and young adults with spina bifida (AYA-SBs) have unique user needs, given their variable and complex symptom profile. Owing to multiple barriers to prevention and intervention treatments for secondary conditions (eg, obesity), AYA-SBs may benefit from the use of behavioral intervention technologies (BITs). However, as BITs are often designed and tested with typically developing individuals, it is unclear if existing BITs may be usable for AYA-SBs.

OBJECTIVE

This study aimed to evaluate the usability of a high-quality, publicly available, weight management–focused mobile BIT (smartphone app) for AYA-SBs.

METHODS

Overall, 28 AYA-SBs attending a Young Men’s Christian Association–based summer camp completed 4 structured usability tasks using a weight management app designed for the general public called My Diet Coach (Bending Spoons). Learnability was measured by (1) time to complete task, (2) number of user errors, and (3) correct entry of data when requested by the app. Satisfaction and general usability were measured via self-reported questionnaires and qualitative feedback following interactions with the app.

RESULTS

The majority of the sample were able to complete the tasks, with increased completion rates and improved times on second attempts of the tasks (Ps<.05). Errors were common, and discrepancies emerged between quantitative and qualitative feedback such that self-reported measures indicated dissatisfaction but qualitative feedback was generally positive. Suggested improvements to the app included (1) tutorials, (2) simplifying the design, (3) more activity options for those who ambulate by wheelchair, and (4) notifications to prompt use.

CONCLUSIONS

AYA-SBs were able to learn how to complete specific tasks independently on a weight management app, but design changes consistent with previously proposed user needs were recommended. Rather than designing entirely new BITs, it may be possible to adapt existing technologies to personalize BITs for specific populations such as AYA-SBs.
Association of Initiation of Maintenance Dialysis with Functional Status and Caregiver Burden
Authors: Goto Namiko A. , van Loon Ismay N. , Boereboom Franciscus T.J. , Emmelot-Vonk Marielle H. , Willems Hanna C. , Bots Michiel L. , Gamadia Laila E. , van Bommel Eric F.H. , Van de Ven Peter J.G. , Douma Caroline E. , Vincent Hieronymus H. , Schrama Yvonne C. , Lips Joy , Hoogeveen Ellen K. , Siezenga Machiel A. , Abrahams Alferso C. , Verhaar Marianne C. , Hamaker Marije E.
Published: June 2019

Background and objectives

Little is known about the functional course after initiating dialysis in elderly patients with ESKD. The aim of this study was to assess the association of the initiation of dialysis in an elderly population with functional status and caregiver burden.

Design, setting, participants & measurements

This study included participants aged ≥65 years with ESKD who were enrolled in the Geriatric Assessment in Older Patients Starting Dialysis study. All underwent a geriatric assessment and a frailty screening (Fried Frailty Index and Groningen Frailty Indicator) at dialysis initiation. Functional status (activities of daily life and instrumental activities of daily life) and caregiver burden were assessed at baseline and after 6 months. Decline was defined as loss of one or more domains in functional status, stable as no difference between baseline and follow-up, and improvement as gain of one or more domains in functional status. Logistic regression was performed to assess the association between the combined outcome functional decline/death and potential risk factors.

Results

Of the 196 included participants functional data were available for 187 participants. Mean age was 75±7 years and 33% were women. At the start of dialysis, 79% were care dependent in functional status. After 6 months, 40% experienced a decline in functional status, 34% remained stable, 18% improved, and 8% died. The prevalence of high caregiver burden increased from 23%–38% (P=0.004). In the multivariable analysis age (odds ratio, 1.05; 95% confidence interval, 1.00 to 1.10 per year older at baseline) and a high Groningen Frailty Indicator compared with low score (odds ratio, 1.97; 95% confidence interval, 1.05 to 3.68) were associated with functional decline/death.

Conclusions

In patients aged ≥65 years, functional decline within the first 6 months after initiating dialysis is highly prevalent. The risk is higher in older and frail patients. Loss in functional status was mainly driven by decline in instrumental activities of daily life. Moreover, initiation of dialysis is accompanied by an increase in caregiver burden.
Palatability of Beef Strip Loin Steaks Representing Various Marbling and Maturity Levels from Grain-Fed Beef
Authors: Cashman D. A. , Hall H. R. , Garmyn A. J. , O’Quinn T. G. , Brooks J. C. , Miller M. F.
Published: June 2019

This study compared palatability traits of beef strip loin steaks with varying marbling scores from young and mature grain-fed beef. Strip loins (n = 150) were selected from grain fed cattle representing ten treatments with the following USDA marbling scores: Slightly Abundant or greater (SLAB+), Moderate or Modest (MD/MT), Small (SM), Slight (SL), and Traces or Practically Devoid (TR/PD) from young “A” maturity carcasses (Y) and mature “C” or greater maturity carcasses (M). Subprimals were fabricated into 2.5-cm steaks at 21 d postmortem and stored frozen until further analysis. Consumer (n = 120) sensory panelists evaluated cooked steaks for tenderness, juiciness, flavor liking, and overall liking. Trained panelists (n = 15 sessions) evaluated each sample for initial and sustained juiciness, initial and sustained tenderness, flavor intensity, and off-flavor intensity. For all traits, consumer and trained panelists’ scores generally decreased with decreasing marbling score, regardless of maturity. According to consumers, maturity had no effect on juiciness or flavor liking within each marbling score, except flavor liking of SLAB+ was greater (P < 0.05) for young than mature carcasses. Conversely, young carcasses had greater tenderness scores than mature within all marbling categories except SM, which translated to greater overall liking of MD/MT, SL, and TR/PD of young compared to their mature counterparts (P < 0.05). Trained panelists detected very few differences between young and mature samples within their respective marbling score; however, M-MD/MT had lower initial and sustained tenderness coupled with greater off-flavor intensity than Y-MD/MT (P < 0.05). Mature samples with SLAB+ and MD/MT marbling were rated greater than or equal to Y-SM for all traits, indicating the presence of marbling from feeding a grain diet prior to harvest may elicit a similar eating experience to young beef by offsetting negative palatability traits often associated with mature beef.
ESTRUCTURA PRODUCTIVA Y CRECIMIENTO ECONÓMICO EN MÉXICO: UNA PERSPECTIVA MULTISECTORIAL
Authors: Aroche Reyes Fidel
Published: June 2019

La economía mexicana ha registrado cuatro décadas de lento crecimiento; no obstante, es razonable esperar que su estructura productiva haya cambiado en ese largo horizonte temporal como resultado del cambio técnico incorporado o de las políticas económicas centradas en la integración con la economía de Estados Unidos, entre otras causas. De acuerdo con la llamada “ley Kaldor-Verdoorn”, el crecimiento de la economía se explica por el comportamiento del producto y la productividad en el sector manufacturero. Luego, se deduce que este sector ha perdido la capacidad de generar crecimiento. En este artículo se examina esta hipótesis desde una perspectiva estructural y desde la de esa ley, estimando también los multiplicadores del producto al modo de Miyazawa.

 

PRODUCTIVE STRUCTURE AND ECONOMIC GROWTH IN MEXICO: A MULTISECTORAL PERSPECTIVE

ABSTRACT
The Mexican economy has shown four decades of slow growth; still it would be reasonable to expect changes in its productive structure along such a long period of time considered, as a result either of the embodied technical change or as a result of the economic policies, that have sought the integration with the US economy, among other causes. According to the so called “Kaldor-Verdoorn law”, growth is explained by the behaviour of both output and the manufacturing productivity; hence, in Mexico this sector must have lost its ability to induce growth in the economy as a whole. This paper examines such hypothesis from a structural perspective, considering such law, estimating also the output multipliers á la mode de Miyazawa.
EFECTOS DE LA INCERTIDUMBRE DE LOS PRECIOS DEL PETRÓLEO EN EL CRECIMIENTO ECONÓMICO DE MÉXICO
Authors: Rodríguez Benavides Domingo , López Herrera Francisco
Published: June 2019

En este trabajo investigamos si la incertidumbre del precio internacional del petróleo incidió en la actividad económica de México durante 1983:2-2017:4. Empleamos un modelo de vectores autorregresivos (VAR) estructural bivariado con un proceso generalizado autorregresivo de heterocedasticidad condicional (GARCH) en media que captura el impacto de la volatilidad del petróleo en el crecimiento económico y la formación bruta de capital fijo. Nuestros resultados muestran que la incertidumbre del mercado petrolero tiene una influencia negativa en la actividad económica. Además, revelan la presencia de efectos asimétricos: la tasa de crecimiento de la producción aumenta (disminuye) después de un choque negativo (positivo) en el precio del petróleo. Estos resultados destacan la importancia de políticas públicas que mitiguen el efecto de la incertidumbre del mercado petrolero y contribuyan a la estabilidad económica.

 

EFFECTS OF OIL PRICES UNCERTAINTY ON MEXICO’S ECONOMIC GROWTH

ABSTRACT

We inquire whether the uncertainty of international oil prices affected Mexico’s economic activity during 1983:2-2017:4. To measure such impact we use a bivariate structural vector autoregressive (VAR) model with a generalized autoregressive conditional heteroskedasticity (GARCH) in-mean process that captures the impact of oil price volatility on economic growth and gross fixed capital formation. Our results show that the said uncertainty has a negative influence on Mexico’s economic activity. Further, they reveal the presence of asymmetric effects, as the output growth rate increases (decreases) after a negative (positive) oil price shock. These results highlight the importance of adopting public policies aimed at mitigating the effects of oil market uncertainty and help stabilize economic activity.
Modelo de orquestación dinámica para flujos de trabajo del software como servicio
Authors: Ruiz Paz Sergio Fabián , Santaolaya Salgado René , Fragoso Díaz Olivia Graciela , Álvarez Rodríguez Francisco Javier , Rojas Pérez Juan Carlos
Published: June 2019

Uno de los modelos de despliegue con mayor uso de la Nube Computacional es el software como servicio, en el cual, el software es desplegado como servicio a través de Internet para poder ser utilizado por los clientes en un modelo de pago por uso. Para poder atender de forma eficiente y dinámica a los clientes de la nube, este tipo de software se compone de un conjunto de servicios atómicos, o microservicios, alojados geográficamente en lugares diferentes, que han sido orquestados y coreografiados en un flujo de trabajo denominado Software como Servicio (SaaS) para representar un proceso de negocios. Bajo este tipo de composición el SaaS, en tiempo de ejecución, puede dar pie a fallos o comportamientos anormales en los resultados, lo que dificulta al proveedor de servicios identificar la falla para aplicar la reparación necesaria al problema y desplegar un SaaS funcional al cliente que lo requiere. Este artículo presenta un modelo de orquestación dinámica aplicado al flujo de trabajo del SaaS. El objetivo es anticipar las fallas que se puedan presentar en los servicios atómicos que lo conforman, en tiempo de ejecución, y orquestar dinámicamente los servicios atómicos con el grado de disponibilidad y confiabilidad necesaria para la ejecución exitosa del flujo de trabajo, asegurando con ello la ejecución en tiempo y forma del SaaS utilizado por el cliente. Este modelo fue implementado en el lenguaje Java con el objetivo de probar su funcionalidad.
Análisis exergético convencional aplicado a una planta de poligeneración operando en cascada geotérmica
Authors: Ambríz Díaz Víctor Manuel , Rubio Maya Carlos , Pacheco Ibarra J. Jesús , Pastor Martínez Edgar
Published: June 2019

En este trabajo se presenta un análisis exergético convencional aplicado a una planta de poligeneración que utiliza energía geotérmica para producir electricidad, enfriamiento y calor útil para deshidratación. La planta de poligeneración opera mediante energía geotérmica de media entalpia y está conformada por varias tecnologías de conversión de energía que operan en tres niveles en una cascada geotérmica. El primer nivel térmico lo constituye un Ciclo de Rankine Orgánico (ORC) con el que se produce electricidad. El segundo nivel térmico está compuesto por una máquina de refrigeración por absorción mediante la que se produce un efecto de enfriamiento para conservación de productos a baja temperatura dentro de una cámara fría, así como para mantener más estable la temperatura de condensación del ORC. La energía térmica del último nivel de la cascada geotérmica se destina para operar un deshidratador. Para determinar las prestaciones energéticas del sistema, la planta de poligeneración se sometió a un análisis de exergía convencional para determinar la exergía destruida en cada componente y de toda la planta. La planta se modeló trabajando bajo parámetros operativos reales, inevitables e ideales para obtener el comportamiento termodinámico bajo diferentes criterios de eficiencia. Los resultados muestran que la planta de poligeneración operando bajo condiciones reales presenta la mayor destrucción de exergía (124.1 kW), la más baja eficiencia exergética (26.9%), y la menor producción de productos energéticos. Los resultados también muestran que teniendo en cuenta las condiciones inevitables, el rendimiento de la planta aumenta hasta alcanzar una eficiencia exergética de 29.6%. Por último, la planta de poligeneración tiene un límite de eficiencia exergética de 77.5%, que corresponde a la operación en condiciones ideales. Los valores obtenidos en este estudio son importantes, ya que marcan una pauta para proponer mejoras de manera individual en componentes y en la planta en general.
La paulatina adopción de ORCID para la mejora de la identidad digital de las revistas científicas españolas en acceso abierto
Authors: Martínez-Méndez Francisco-Javier , Lopez-Carreño Rosana
Published: June 2019

Este trabajo reflexiona sobre la necesidad de adoptar un identificador digital para autores o investigadores, el cual facilite el control de autoridades, así como parala actualización de la currícula y la determinación de métricas en la producción científica, concluyendo que el ORCID puede ser el indicador más recomendable en la actualidad. Teniendo en cuenta la importancia de las revistas científicas en la comunicación de los resultados de la investigación, se ha analizado el uso de este indicador en las publicaciones españolas editadas en acceso abierto, verificando como resultado una tendencia a propiciar el empleo del ORCID en estas publicaciones, debido a la facilidad de su adopción, a través de los sistemas de gestión editorial como OJS, su interoperabilidad y su presencia en las revistas de mayor impacto.
Modelo de intervención para competencias digitales del Programa Bibliotecas Públicas de Aguascalientes
Authors: González Sandoval José Luis , Álvarez-Rodríguez Francisco Javier , Arteaga Jaime Muñoz
Published: June 2019

El presente artículo describe, de manera general, un modelo de intervención para el desarrollo de la sociedad del conocimiento del estado de Aguascalientes, particularmente enfocado en las bibliotecas públicas en las que se aplicaron estrategias para capacitar al personal bibliotecario que labora en las unidades de información. En dicha intervención, se describen los cursos, objetivos y logística, así como los resultados que se obtuvieron, con la finalidad de fortalecer las competencias digitales del personal bibliotecario, además de las etapas que se cubrieron en dicho proceso. El modelo se justifica y adquiere valor por sus características de flexibilidad, adaptabilidad e interdisciplinariedad de cursos, especialmente diseñados para reducir la brecha digital en los bibliotecarios y en la sociedad. Se exponen también en los siguientes apartados el contexto e importancia de las habilidades y competencias obtenidas a lo largo del programa, así como datos cualitativos; más aún, esta propuesta permitió analizar las condiciones del sistema bibliotecario de la entidad y conocer las características de infraestructura que posee.
Modelling of single degree of freedom SMA oscillators by using rheological schemes
Authors: Artur Zbiciak  , Kacper Wasilewski
Published: June 2019

Introduction. The interest to the SMA elements in civil engineering is constantly increasing. Regarding the field of civil engineering, the devices incorporating SMA elements mostly find applications in mitigation of natural disaster hazards, such as earthquakes. The promising results of applications are possible due to unique properties of SMA, such as shape memory effect (recovering of relatively high strains while material is heated) and superelasticity (recovering of strains upon load removal). The most common approach to the formulation of SMAs constitutive relations is a thermomechanical modelling, in which constitutive equations are dependent on internal state variables.
Materials and methods. The article describes the phenomenological approach to modelling of single degree of freedom SMA oscillators by using rheological schemes.
Results. Certain sets of rheological components are presented and their influence on the oscillator response is examined. As an example of numerical application of presented approach, the simple one-dimensional oscillator is used in order to solve the case of forced vibrations of a cantilever with embedded SMA reinforcement.
Conclusions. One of the advantages of the phenomenological modelling approach presented in the article is a possibility of formulation of constitutive relationships as a set of explicit differential equations. Such system of equations can be easily implemented in mathematical software or in the commercial FEM codes as a user’s subroutines.
The calculation of building cooling under emergency conditions to ensure their heating reliability
Authors: Samarin Oleg D.
Published: June 2019

Introduction. Continuation of research in the area of premise cooling rate calculation with the aim of obtaining dependencies, which are sufficiently accurate and take into account the most of the factors essential for the problem, but at the same time having an engineering form, is still relevant. The purpose of the study is the search for a dependence of the temperature in the building premises on time in the initial period after heat supply shutdown at emergency mode. Exponential nature of this dependence is considered as a scientific hypothesis. Materials and methods. The basic equations connecting the most important components of a heat flow in a cooling room under condition of the termination of heat supply from heating devices are used and analysed in the study. A numerical model of non-stationary thermal regime of the ventilated room is implemented on the base of the solution of a differential equations system of heat conduction and heat transfer on the surfaces of the room. Results. An analytical expression is obtained for the room cooling rate when the heat supply is disconnected, which has the form of an exponential function of square root of time since the accident. The cooling time before the condensation on the inner surface of the enclosure is determined by the example of a currently existing residential building under climatic conditions of Moscow, accounting the structural characteristics of the building and normalized fresh-air flow rate. Conclusions. It is shown that the building cooling in the initial period is influenced mainly by the ratio of the heat flux associated with unorganized air exchange and the heat loss to the environment through “light” enclosure. It was found that the decrease of natural air exchange in the building cooling process leads to a certain slowdown in the decrease of temperature, but it is not decisive. It is understood that the use of airtight light opening fillers, for example, in plastic casement, under normal conditions aggravating the sanitary and hygienic situation in the premises, under emergency conditions increases the available time interval for the restoration of heat supply.
The sustainability of micropolar concrete plasticity model to the finite element size
Authors: Pertseva Olga N. , Martynov Gleb V. , Monastyreva Daria E. , Pereladova Ekaterina I. , Daurov Zaur S. , Tikhonov Roman S.
Published: June 2019

Introduction. As it is known, deformation of concrete can be divided into several stages. The first stage is characterized by a linear dependence of deformations and stresses, elastic deformations and small loads that, as they increase, lead to the second stage. At the second stage, the dependence becomes curvilinear, while deformations are irreversible, since micro-cracks are formed. Further consolidation of the micro-cracks into meso- and main cracks refers to the third stage and is accompanied by a redistribution of energy to the area of the main crack mouth. However, reaching the ultimate strength is not accompanied by an instant loss of bearing capacity due to the effect of decompression. This phenomenon should be taken into account in the numerical simulation of concrete and reinforced concrete structures, because it significantly affects their strength characteristics. The introduction of such a refinement in the design models will allow reducing cross-sections of the construction components and accordingly getting rid of material overruns.

Materials and methods. A digital sample is created for the study using the ANSYS software. A beam model is simulated as a single-span beam with longitudinal reinforcement in the bending zone. The load is applied as a 70 mm offset to the nodes in the line along the application point. Reinforcement is simulated as bilinear isotropic strengthening elements (LINK180). For uniform load distribution, load plates with linear elastic properties are specified at the points where boundary conditions and load are applied.

Results. According to the obtained data, stress-deformation curves are constructed identically to the concrete deformation diagram. The values of loads when the first cracking occurs (end of the linear-elastic state), peak loads when the main crack is formed (maximum load for the unreinforced case and the beginning of the steel softening for the reinforced case) as well as ultimate loads and maximum deflections at the mid-span are compared.

Conclusions. The results give insignificant (up to 5 %) discrepancies when changing the finite element size. Therefore, when working with calculation software, developers will be able to create correct models with any spacing of the finite element mesh depending on the available computational capabilities. Micropolar theory for simulating the concrete decompression can be considered sustainable to the size of the finite elements.
Safe usage of external enclosures under adverse environmental exposure
Authors: Elchishcheva Tatiana F.
Published: June 2019

Introduction. The study considers the issue of safety of the human vital activity environment in the field of construction and usage of buildings, which includes, along with other types of safety, thermal, biological and mechanical safety. The last ones cannot be provided if there are inorganic hygroscopic salts in construction materials of external enclosures due to influence of the salts on the thermal, mechanical and other properties of the materials. Thermal conductivity coefficient of damped saline construction materials is determined on a developed experimental facility operating according to the principle of unsteady thermal conditions. A statistical analysis of the experimental results on thermal conductivity of materials possessing various structures and densities is carried out. Significance of the influence of the “salt content” factor on the thermal conductivity of saline materials in comparison with control non-saline samples is revealed. Materials and methods. Construction materials for the study are selected as follows: autoclave lime-and-sand brick and burnt brick with a density of 1800 kg/m3, autoclave foamed silicate with a density of 650 kg/m3, wood concrete with a density of 616 kg/m3 and mineral wool slabs with a density of 150 kg/m3. The generally accepted methods of laboratory research and statistical processing of experimental results are used. Laboratory methods include preparation, salinization with sodium chloride, potassium sulfate and calcium chloride, and measurements of the thermal conductivity coefficient of construction material samples. Results. The determination of thermal conductivity of wetted saline materials under unsteady thermal conditions makes it possible to eliminate drying of the samples and migration of salts and moisture. The presence of salt crystals increases the thermal conductivity of dry materials up to 80 % (rel.). Damping the samples promotes the dissolution of the crystals and lowering the thermal conductivity of the samples to values lower than those of non-saline samples with the same moisture content. Conclusions. The study proves the significance of the salinization effect on the thermal and physical characteristics of construction materials that must be taken into account when thermal engineering calculating external enclosures and predicting their moisture state during usage.
La gestión participativa y sostenible del patrimonio mundial a través de los foros híbridos. El caso del centro histórico de Santa Ana de Cuenca
Authors: Molina Bárbara
Published: June 2019

La gobernanza participativa se considera un tema clave en las agendas para el desarrollo sostenible de la época actual. En este contexto, la UNESCO ha buscado incorporar a la sostenibilidad en la gestión de las Ciudades Históricas Patrimonio Mundial. Sin embargo, estos esfuerzos se han visto limitados por la falta de metodologías que permitan la gestión participativa del patrimonio de acuerdo con las características de cada contexto. Por ello, se propone el uso de los denominados foros híbridos como mecanismos de participación, utilizando como caso de estudio al sitio Patrimonio Mundial de Cuenca (Ecuador). A partir de los datos aquí generados, se busca establecer si esta metodología es efectiva para la gestión sostenible del patrimonio mundial a largo plazo.
Christian personalism as a source of the universal declaration of human rights
Authors: Djurkovic Misa
Published: June 2019

To mark the 70th anniversary of the adoption of the Universal Declaration of
Human Rights, the author embarked on an attempt to analyze the theoretical
and historical framework that contributed to the adoption of the document.
The first part of the article discusses the development of the philosophy of
personalism from Mounier to Maritain and analyzes Maritain?s views on human
rights. In the second part of the article, the author shows the decisive
influence of the personalists Charles Malik and Rene Cassin on the adoption
of the document, which clearly bears the mark of the Christian personalistic
discourse and notions.
Diseño de estrategia de apertura para la interpretación gráfica-analítica a través de Desmos como preparación para el aprendizaje del cálculo diferencial
Authors: Rojas Maldonado Erick Radaí
Published: June 2019

El dibujo fomenta la creatividad del alumno porque le permite documentar información y representar con claridad la comprensión de conceptos abstractos, de ahí que resulte muy útil el uso de la aplicación educativa Desmos, una herramienta didáctica que no solo se puede emplear en cualquier smartphone, sino que también permite un acercamiento ameno del estudiante hacia la geometría analítica. Por ese motivo, en el presente proyecto se ha usado el referido software para contribuir a la comprensión estudiantil del cálculo diferencial e integral. El objetivo final fue diseñar una estrategia de actividad de apertura/inicio para la secuencia didáctica desarrollada por Rojas Maldonado (2015), y de esa manera favorecer la creatividad y la comprensión gráfica-analítica de la matemática para el aprendizaje del cálculo diferencial y para preparar la construcción del concepto de límite. Este proyecto, basado en el programa BYOD (Bring Your Own Device), se desarrolló en el lapso 2018-2019 cuando se explicaba la unidad temática funciones en la asignatura de Cálculo Diferencial. En el estudio participaron 123 alumnos tanto del bachillerato de Ingeniería y Arquitectura del Colegio Primitivo y Nacional de San Nicolás de Hidalgo como del segundo semestre de la licenciatura en Biotecnología, ambos grupos pertenecientes a la Universidad Michoacana de San Nicolás de Hidalgo. Los resultados demuestran que se pudo promover un desarrollo matemático y aplicar un modelo didáctico a figuras estructurales, las cuales se vincularon con situaciones cotidianas o fenómenos naturales que ayudaron a disminuir las dificultades entre el mundo matemático analítico y gráfico.
Penerapan Reproducible Research pada RStudio dengan Bahasa R dan Paket Knitr
Authors: Budiaji Weksi
Published: June 2019

Reproducible Research (RR) atau penelitian yang hasilnya dapat diulang sangat penting dalam sebuah penelitian karena dengan demikian peneliti lain akan dapat menjalankan ulang atau mengembangkan hasil penelitian sebelumnya dengan data dan kode yang telah tersedia. RStudio sebagai integrated development environment (IDE) software R dan paket Knitr menawarkan kemudahan untuk RR karena data dan kode dapat tersedia dengan mudah. Langkah pembuatan RR adalah pembuatan file .rmd, penyesuaian meta data, penulisan teks dan kode (chunk), dan rendering. Penerapan teks-kode, teks-tabel, dan teks-gambar pada sebuah contoh kasus artikel dengan RStudio, software R dan paket Knitr memberikan keuntungan yaitu penyesuaian hasil dan pengecekan yang lebih menghemat waktu jika terjadi perubahan data, cross reference yang mudah pada tabel dan gambar, dan kemudahan peneliti lain memanfaatkan data dan kode yang telah tersedia. Pengadopsian reproducible research (data dan kode tersedia) menjadi penting bagi seorang peneliti agar kontribusi terhadap keilmuan lebih efektif.
Berebut Wacana: Hilangnya Etika Komunikasi di Ruang Publik Dunia Maya
Authors: Mustofa Saiful
Published: June 2019

This article starts from the phenomenon of how communication ethics seems to no longer apply in public space of cyberspace. Social media - as one of the products of digital revolution - becomes a free stage to spread anxiety, hate narratives wrapped in SARA and the legitimacy of the truth authority. By using Jürgen Habermas's critical hermeneutic analysis, this article wants to examine the phenomenon of discourse struggling, which is dominated by hate speech wrapped in religion and hoax on social media during the period 2017-2018, which on average loses communication ethics. The discourse struggling in cyberspace public space showed the existence of strong political penetration by utilizing religious symbols as "weapons" so that the consensus of mutual understanding did not occur anymore.
PENGARUH PENGGUNAAN STRATEGI SOCIO SCIENTIFIC ISSUES TERHADAP REFLECTIVE JUDGMENT SISWA KELAS IX DI SMP NEGERI 11 BANDAR LAMPUNG
Authors: Wulandarai Fitria , Handoko Akbar , Sri Anggoro Bambang
Published: June 2019

Abstrak: Penelitian yang telah dilakukan merupakan jenis penelitian quasy eksperimen. Penelitian  dilaksanakan di SMPN 11 Bandar Lampung yang bertempat di Jl. Sentot Kel. Ketapang Kec. Panjang Bandar Lampung. Penelitian bertujuan untuk mengetahui pengaruh strategi socio scientific issues terhadap reflective judgment siswa kelas IX SMPN 11 Bandar Lampung pada materi sistem reproduksi. Desaian penelitian yang digunakan adalah The Matching only posttest control group design. Alat pengumpulan data yang digunakan adalah tes, lembar observasi dan dokumentasi. Sedangkan untuk instrument pada penelitian terdiri dari tes essay yang indikator disesuaikan dengan tahapan pemikiran reflective. Hasil penelitian berupa data kuantitaif, data yang digunakan dalam penelitian yaitu tes berupa soal essay yang digunakan untuk mengetahui reflective judgment siswa. Uji hipotesis penelitian menggunakan ujit, sebelum dilakukan uji t data diuji dulu menggunakan uji prasyarat  yaitu uji normalitas dan uji homogenitas. Dari hasil penelitian didapatkan bahwa pembelajaran dengan menggunakan strategi Socio scientific issues kelas eksperimen diperoleh nilai posttestrata-rata 74,42 dan pada kelas kontrol diperoleh nilai rata-rata 70,73. Untuk uji t pada posttes diperoleh data  thitung = 10,0882523 ttabel(0,05) = 1,6669.  Jadi dapat disimpulkan bahwa strategi pembelajaran Socio scientific issues berpengaruh positif terhadap hasil nilai posttes, dengan pembelajaran berbasis SSI dapat mempengaruhi Reflective judgment siswa sehingga saat disajikan suatu masalah atau isu-isu sosial lebih bijaksana dalam pengambilan keputusan yang baik.
Karakteristik Alelopati Ekstrak Daun Jarak Pagar (Jatropha curcas L.) Terhadap Pertumbuhan Kecambah Jagung Hibrida (Zea mays L.) Varietas Bisi 18
Authors: Adyatma Rengga , Lande Martha Lulus , Zulkifli Zulkifli , Wahyuningsih Sri
Published: June 2019

Penelitian ini bertujuan untuk mengetahui apakah ekstrak daun jarak pagar dapat menghambat pertumbuhan jagung hibrida varietas bisi 18, serta untuk mengetahui variabel mana yang lebih sensitif terhadap pengaruh ekstrak air daun jarak pagar. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 taraf konsentrasi ekstrak air daun jarak pagar yaitu 0% b/v (kontrol) 5% b/v  10% b/v 15% b/v 20% b/v dengan 5 kali ulangan. Variabel yang diamati dalam percobaan ini adalah panjang tunas, berat segar dan berat kering kecambah, kadar air relatif,  dan kandungan klorofil a, b, dan total. Data hasil penelitian ini dianalisis ragam pada taraf 5% jika hasilnya berpengaruh maka di lanjutkan dengan uji BNT pada taraf nyata 5%. Hasil penelitian menunjukan bahwa ekstak daun jarak pagar konsentrasi 20% menurunkan panjang tunas dan berat kering secara signifikan kecambah jagung hibrida varietas bisi 18. Dari hasil penelitian ini dapat disimpulkan bahwa ekstrak daun jarak pagar mempengaruhi panjang tunas dan berat kering, tetapi tidak mempengaruhi berat segar kecambah, kadar air relatif, rasio tunas akar dan klorofil jagung hibrida varietas bisi 18.
Analisis Keterampilan Proses Sains Dan Sikap Ilmiah Peserta Didik Kelas XI Mata Pelajaran Biologi Di SMA Al-Azhar 3 Bandar Lampung
Authors: Guswita Serly , Anggoro Bambang Sri , Haka Nukhbatul Bidayati , Handoko Akbar
Published: June 2019

Kurangnya kemampuan keterampilan proses sains dan sikap ilmiah akan menyulitkan peserta didik memahami pelajaran Biologi itu sendiri. Hal ini terjadi pada peserta didik kelas XI SMA Al-Azhar 3 Bandar Lampung, mereka belum sepenuhnya memahami konsep Biologi. Oleh karena itu, penulis melakukan penelitian untuk mengetahui (1) bagaimana profil Keterampilan Proses Sains yang dominan muncul didalam praktikum biologi kelas XI IPA di SMA Al-Azhar 3 Bandar Lampung  (2) bagaimana profil Sikap Ilmiah yang dominan muncul didalam praktikum biologi kelas XI IPA di SMA Al-Azhar 3 Bandar Lampung (3) bagaimana hubungan Keterampilan Proses Sains dan Sikap Ilmiah dalam pembelajaran biologi. Penelitian ini merupakan penelitian kualitatif deskriptif. Sampel yang digunakan sebanyak 3 kelas yang dipilih dengan teknik acak kelas, yaitu kelas XI IPA 2, kelas XI IPA 5 dan kelas XI IPA 6. Teknik pengumpulan data yang digunakan adalah tes, observasi, angket dan dokumentasi. Teknik analisis data penelitian ini menggunkan data reduction (reduksi data), data display (Penyajian data), dan consclusion drawing/verivication (kesimpulan). Hasil analisis (1) profil Keterampilan Proses Sains yang dominan muncul yaitu mengajukan pertanyaan, mengamati/observasi, merencanakan percobaan, dan melakukan percobaan , (2) sikap ilmiah yang dominan muncul yaitu mengutamakan bukti, menerima perbedaan dan bersikap positif terhadap kegagalan, (3) hubungan Keterampilan Proses Sains dan Sikap Ilmiah yakni membantu peserta didik memahami konsep pembelajaran biologi
TERPAAN TAYANGAN BERITA MENGENAI KASUS KORUPSI KADER PARTAI DEMOKRAT TERHADAP KEPERCAYAAN MAHASISWA FAKULTAS ILMU SOSIAL DAN POLITIK UNIVERSITAS PADJAJARAN KEPADA PRESIDEN RI
Authors: Fitra Azka Haria , Dick Rubahatie HS , Setiaman Agus
Published: June 2019

Penelitian dilakukan di Fakultas Ilmu Sosial dan Ilmu Politik Padjajaran Jl. Jatinangor-Sumedang Km 21 bertujuan untuk mengetahui bagaimana perhatian, Kapasitas, strategi fokus dan keterlibatan saat menonton berita tentang kasus-kasus korupsi yang menyebabkan kader Demokrat di legislatif yang ditayangkan oleh Metro TV tentang mahasiswa kepercayaan FISIP Unpad kepada Presiden RI. Penelitian ini menggunakan deskriptif kuantitatif dengan teknik deskriptif dan analisis tabulasi silang. Penelitian ini menggunakan teknik pengumpulan data melalui kuesioner, wawancara, dan studi literatur. Sampel dari penelitian ini adalah mahasiswa jurusan Ilmu Pemerintahan Fakultas Ilmu Sosial dan Ilmu Politik Universitas Padjajaran angkatan B 2009. Hasil penelitian ini adalah terpaannya berita di Metro TV tentang kasus korupsi yang menjerat kader Partai Demokrat dapat mempengaruhi tingkat kepercayaan mahasiswa FISIP Unpad menjadi Presiden RI. Dari variabel kapasitas penelitian ini, fokus strategis, serta keterlibatan responden untuk menunjukkan dalam kategori sedang, hanya perhatian yang ada di kategori tinggi. Peneliti menyarankan agar siswa harus lebih berhati-hati dan kritis ketika mereka menonton berita di setiap media. Berpikir kritis memungkinkan kita untuk memilah informasi mana yang perlu kita jelajahi. Penting untuk menghindari dampak buruk jika kita tidak secara selektif menentukan informasi yang kita dapatkan dari televisi
HUBUNGAN ATMOSFIR RESTORAN DENGAN KEPUTUSAN PEMBELIAN DI RESTORAN KFC CIREBON
Authors: Kuswara Ibnu , Karimah Kismiyati El , Widyowati Wenny
Published: June 2019

Tujuan penelitian ini adalah mengetahui ada tidaknya hubungan atmosfir restoran yang termasuk sight appeal, scent appeal, sound appeal dan touch appeal dengan keputusan pembelian pada anggota membership Restoran Kentucky Fried Chicken di Cirebon. Metode penelitian yang digunakan adalah metode korelasional yang bertujuan untuk meneliti hubungan variasi pada suatu faktor dengan variasi pada faktor lain. Data penelitian diperoleh melalui kuisioner yang dibagikan pada anggota membership restoran KFC di Cirebon, wawancara dengan pihak terkait mengenai KFC dan studi kepustakaan. Objek dari penelitian ini adalah atmosfir restoran KFC. Populasi dalam penelitian ini adalah Membership KFC Cirebon yang berjumlah 420 orang. Dengan teknik sampling acak sederhana dan menggunakan pecahan 0.1 didapatkan ukuran sampel sebanyak 84 orang. Hasil penelitian menunjukan adanya hubungan yang signifikan antara variabel X dan variabel Y yaitu Atmosfir restoran yang meliputi Sight appeal,scent appeal,sound appeal, touch appeal dengan keputusan pembelian. Kesimpulan dalam penelitian ini adalah bahwa terdapat hubungan yang signifikan antara atmosfir restoran dengan keputusan pembelian pada anggota membership Restoran Kentucky Fried Chicken di Cirebon.
Capitalism and Religious Behavior: The Case of Tumpang Pitu Gold Mining In Banyuwangi
Authors: Alfian Anang Gunaifi
Published: June 2019

In the discourse of globalization, religious agency plays an important role ranging from supporter to the opposition of the globalization. However, the understanding of globalization should involve its encounter with localities. In religious studies, religious responses can be an entry point to see how global issues impact the practice of religion. Selecting the case of the conflict over gold mine at Tumpang Pitu near Banyuwangi, East Java, as a place of conflict and encounter between capitalism and religious behavior is significant in portraying the dynamics within religious agency. Here, capitalism is discussed as the popular term among the rejecters of the mining, together with religious behavior as expression, logic, attitudes of religion. Therefore, this research is aimed to investigate the effects of gold mining project Tumpang Pitu toward religious behavior. To emphasize the study on the working of global issues and religious locality, the research employed ethnography of global connection proposed by Anna L Tsing (2005) added with religious account. The result shows that the conflict within traditionalist religious affiliation as seen in the debate over its position on the mine, a conflict extending from the grassroots to the highest level, reflects the struggle within Indonesian Islam over effective and ethical relations with global capitalism.