bluuebunny/crossref_metadata_2025 huggingface dataset:
OPTIMAL RESIDENTIAL LOAD CONTROL COMPARISON USING LINEAR PROGRAMMING AND SIMULATED ANNEALING FOR ENERGY SCHEDULING
Authors: GÜLER Emre , BAŞARAN FİLİK Ümmühan
Published: March 2020

Many tariffs are used for electricity pricing. Electricity bills can be reduced by choosing the optimal working hours of appliances and for appropriate tariffs in smart homes. In this study, Linear Programming (LP) and Simulated Annealing (SA) methods are realized and compared each other to find minimum bill. The multi-time tariffs that have different energy unit prices at different times of the day are preferred. Energy Management System (EMS) shifts time slots of some appliances to cheap energy unit prices. Optimal load control is applied to prevent high peak demand because there may be overload in system because of shifting of working hours of appliances. Mathematical model of the problem is constructed and LP method is solved by GAMS and SA technique is realized by C# program. The cost table consisting of the energy unit prices of each time slots is used as input. Optimum electricity cost, working hours of the appliances and peak to average ratio are achieved by two different solutions and the results are compared. According to result, LP gives lower cost than SA.
Design and Implementation of P&O Maximum Power Point Tracker Algorithm Based Solar Charge Controller
Authors: Akdeniz Hakan Yahya , Yönetken Ahmet
Published: March 2020

: Solar energy is one of the main
sources of renewable energy. In photovoltaic systems, energy is obtained from
photovoltaic batteries In photovoltaic batteries, the current and voltage do
not increase linearly. This causes the power to take different values. There is
a point where power reaches its peak. Detecting this point called the maximum
power point and transferring the energy to the load at this point, reduces the
losses and increases the efficiency. Many microcontroller controlled circuits
have been designed and algorithms have been developed for maximum power point
trackingPerturb and Observe algorithm is the most widely used algorithm. In
this study; Maximum Power Point Tracker Algorithm Based Solar Charge Controller
is designed. Arduino microcontroller card was used as it has easy
programmability and rapid prototype development. Developed charge regulator
determines the maximum power point by measuring the current voltage values and
charge the battery at this point. The current, voltage, battery charge rate and
charge status information obtained from the charge controller can be monitored
by android mobile devices. The developed charge control circuit has been tested
using a 45 Watt photovoltaic panel under different weather conditions. It was
observed that it followed the maximum power point.
A zero truncated discrete distribution: Theory and applications to count data
Authors: Kiani Tassaddaq Hussain
Published: March 2020

The analysis and modeling of zero truncated count data is of primary interest in many elds such as engineering, public health, sociology, psychology, epidemiology. Therefore, in this article we have proposed a new and simple structure model, named a zero truncated discrete Lindley distribution. Thedistribution contains some submodels and represents a two-component mixture of a zero truncated geometric distribution and a zero truncated negative binomial distribution with certain parameters. Several properties of the distribution are obtained such as mean residual life function, probability generating function, factorial moments, negative moments, moments of residual life function, Bonferroni and Lorenz curves, estimation of parameters, Shannon and Renyi entropies, order statistics with the asymptotic distribution of their extremes and range, a characterization, stochastic ordering and stress-strength parameter. Moreover, the collective risk model is discussed by considering theproposed distribution as primary distribution and exponential and Erlang distributions as secondary ones. Test and evaluation statistics as well as three real data applications are considered to assess the peformance of the distribution among the most frequently zero truncated discrete probability models.
Transient Analysis of M[X1],M[X2]/G1,G2/1 retrial queueing system with priority services, working breakdown, start up close down time, Bernoulli vacation, reneging and balking
Authors: Ayyappan Govindhan , J Udayageetha
Published: March 2020

This paper considers  M[X1],M[X2]/G1,G2/1 general retrial queueing system with priority services. Two types of customers from different classes arrive at the system in different independent compound Poisson processes. The server follows the pre-emptive priority rule subject to working breakdown, startup/closedown time and Bernoulli vacation with general (arbitrary) vacation periods. After completing the service, if there are no priority customers present in the system the server may go for a vacation or close down the system. On completion of the close down, the server needs some time to set up the system. The priority customers who find the server busy are queued in the system. A low-priority customer who find the server busy are routed to a retrial (orbit) queue that attempts to get the service. The system may breakdown at any point of time when it is in operation. However, when the system fails, instead of stopping service completely, the service is continued only to the high priority customers at a slower rate. We consider balking to occur to the low priority customer while the server is busy or idle, and reneging to occur at the high priority customers during serverâ€™s vacation, start up/close down time. Using the supplementary variable technique, we derive the joint distribution of the server state and the number of customers in the system. Finally, some performance measures and numerical examples are presented.
Los canales booktuber como espacio de socialización de prácticas lectoras juveniles.
Authors: Paladines-Paredes Lenin-Vladimir , Margallo Ana-María
Published: March 2020

Este trabajo realiza una aproximación a las prácticas lectoras de jóvenes booktubers que utilizan YouTube para hablar sobre libros. A fin de identificar las transformaciones que la plataforma introduce en las prácticas culturales en torno a las lecturas literarias, se clasifica el contenido de los videos de los canales de 6 booktubers de acuerdo a las funciones que desempeñan en las formas de socialización de las lecturas. Las funciones resultantes son las de analizar las lecturas, mostrar las colecciones literarias personales y seleccionar información literaria a través de retos o juegos que comparten con otros booktubers. El análisis de la distribución de los tipos de prácticas de socialización en estos canales muestra cómo los booktubers organizan y moldean estas categorías, especializándose en una función, de acuerdo a su propio interés, a la edad o la experiencia lectora, o a la facilidad de consolidar una comunidad virtual que genera y produce contenido de interés, consolidándose como mediadores de un proceso lector que evoluciona, aprovechando las herramientas tecnológicas para transformar la práctica lectora.
El contexto sociofamiliar y su incidencia en el rendimiento lector del estudiante en PISA
Authors: Vázquez-Cano Esteban , De-la-Calle-Cabrera Ana-María , Hervás-Gómez Carlos , López-Meneses Eloy
Published: March 2020

Esta investigación pretende analizar la influencia del nivel educativo de los padres y madres, la profesión y el rol educativo de los mismos en el rendimiento lector de sus hijos e hijas de forma comparada entre países de lengua iglesa y española. El estudio se aborda desde un análisis multinivel y de regresión logística binaria. Los resultados muestran que el contexto sociofamiliar aporta una predicción entorno al 20% en países de habla española y el 15% en países de habla inglesa. La incidencia más significativa se produce por el nivel de estudios medio de los padres y la muestra de interés de los padres en las actividades escolares y el apoyo educativo hacia sus hijos en ambos bloques de países.
Integración de la narración y la argumentación en la renarración de textos narrativos
Authors: Gutiérrez Mario-Fernando , Escobar-Altare Andrea
Published: March 2020

En este artículo se tiene como objetivos analizar la presencia de elementos estructurales narrativos de la historia de un texto literario infantil en los relatos de niños y niñas sobre dicha obra y analizar los esquemas argumentativos que implementan cuando justifican tanto las acciones de los personajes como sus propias posiciones en torno a lo sucedido en la historia. Participaron en esta investigación 45 estudiantes, 25 niñas y 20 niños con edades entre los 6 años y los 10 años de edad (M= 8.10; DE= 0.9); inscritos desde primer hasta quinto grado de educación básica primaria de un colegio de la ciudad de Bogotá (Colombia). El corpus utilizado en esta investigación estuvo conformado por 1152 enunciados en 655 turnos de palabra. Los análisis cuantitativos a través de Chi-cuadrado dan cuenta de diferencias significativas para la media de elementos estructurales narrativos, categorías narrativas y esquemas argumentales por grado. Se discuten los resultados resaltando que el uso de la narración y la argumentación convergen paulatinamente y que estos tipos de discurso en conjunto favorecen la renarración de textos narrativos.
Efectividad de coagulantes obtenidos de residuos de papa (Sonalum tuberosum) y plátano (Musa paradisiaca) en la clarificación de aguas.
Authors: Carrasquero Sedolfo Jose , Montiel Flores Stefany , Faría Perche Emily Daniela , Parra Ferrer Paola María , Marin Leal Julio Cesar , Díaz Montiel Altamira Rosa
Published: March 2020

Se evaluó la eficiencia de remoción de turbidez y color utilizando coagulantes obtenidos de cáscaras de papa (Solanum tuberosum) y residuos de plátano (Musa paradisiaca) durante el tratamiento de aguas de baja, media y alta turbidez. Se prepararon soluciones turbias sintéticas con valores iniciales de 10, 15, 25, 75, 100 y 200 UNT. Se caracterizaron fisicoquímicamente las soluciones coagulantes preparadas a partir de cáscaras de papa y residuos de plátano mediante los parámetros: pH, color, turbidez, sólidos totales, disueltos y suspendidos. Se utilizó la prueba de Jarras para la determinación de las dosis óptimas de las soluciones coagulantes preparadas utilizando dosis de 10, 25, 50, 100, 250 y 500 mg/L para cada valor de turbidez inicial. Las mayores remociones de turbidez utilizando las soluciones coagulantes de cáscaras de papa y residuos de plátano fueron de 99,6 y 99,5% en el agua de 200 UNT con dosis de 50 y 25 mg/L, respectivamente. Para todas las pruebas de Jarras realizadas, se obtuvieron valores de pH después del tratamiento dentro del rango establecido en la norma sanitaria venezolana vigente. Se concluyó que las soluciones preparadas a partir de los residuos vegetales pueden ser utilizadas como coagulantes primarios en el tratamiento de aguas como alternativas frente al uso de coagulantes tradicionales.
Cuantificación de tioles libres y superoxido dismutasa (SOD) en extractos metanolicos de plantas de las familias Asteraceae, Euphorbiaceae y Piperaceae
Authors: Betancur Yeimy Lizeth , Mosquera Oscar M.
Published: March 2020

Dada la toxicidad de las especies reactivas de oxígeno (ROS) y la actual importancia de los fitocompuestos, en este trabajo se evaluaron 32 extractos metanólicos obtenidos por maceración pasiva de la parte área de especies pertenecientes a las familias Asteraceae, Euphorbiaceae y Piperaceae.  A estos extractos se les evaluó la concentración de tioles libres de bajo peso molecular, mediante el método de DTNB, usando glutationa (GSH) como tiol de referencia. A los que presentaron mayor concentración se les evaluó la capacidad de disminuir  el radical superóxido a través de la  inhibición de la superoxido dismutasa (SOD) y seguidamente se determinó la capacidad antioxidante por el método del radical DPPH˙.  Las especies de las  familias Asteraceae y Piperaceae se destacaron por su alto contenido de compuestos de naturaleza tiol. Además, estas especies también se destacaron en el ensayo de actividad antioxidante frente al radical DPPH˙ obteniendo valores para el porcentaje de actividad antioxidante similares a la hidroquinona que fue usada como control positivo.
Caracterización química del aceite esencial de hojas de la especie vegetal Senna reticulata (Fabaceae)
Authors: Matulevich Peláez Javier Andrés , Castrillón Cardona William Fernando , Chitiva Chitiva Luis Carlos , Flórez Díaz Edwin Antonio
Published: March 2020

A partir de hojas frescas de la especie vegetal Senna reticulata (Fabaceae) se obtuvo el aceite esencial mediante la técnica de extracción por arrastre de vapor; la identificación y composición química se realizó por medio de cromatografía de gases acoplada a espectrometría de masas (CG-EM), comparación de los índices de retención (IR) y los datos reportados en la literatura. El aceite esencial se obtuvo con un rendimiento del 0.10% en peso, en el cual se identificaron 20 compuestos correspondientes al 80,39% de la composición química total del aceite esencial; dentro de estos fueron identificados un ácido carboxílico, un hidrocarburo alifático, dos ésteres, catorce sesquiterpenos y dos aldehídos entre los cuales se encuentra el compuesto mayoritario correspondiente al miristaldehido (63,84%). Además, se realizó un perfil comparativo mediante un análisis estadístico multivariado de los componentes encontrados frente a los reportados para seis especies de la familia Fabaceae encontrando compuestos comunes como a-copaeno, a-pineno, g-muroleno y d-cadineno.
Propuesta metodológica para construir un algoritmo que determine si un número es perfecto usando programación imperativa
Authors: Trejos Buriticá Omar Iván
Published: March 2020

El presente artículo da cuenta de una propuesta para enseñar programación de computadores a través de la solución de un problema concreto basándose en el paradigma de programación funcional relacionando un tema problema propio de las matemáticas y capitalizando la tecnología computacional a través de lenguaje de programación DrScheme para resolverlo. En esta investigación se utilizó el método de estudio y resolución de un caso determinado desde el enfoque de su formalización matemática y su implementación computacional en el primer curso de programación de computadores de un programa de Ingeniería de Sistemas. Los resultados obtenidos muestran un proceso de apropiación del conocimiento y retroalimentación del ejercicio puntual en el cual se ha podido aplicar, por los alumnos, dicho conocimiento en ejercicios similares fomentando el aprendizaje autónomo y el active learning sobre estos procesos de formación. Se concluye que resolver problemas matemáticos, desde la programación de computadores, es un área que puede explotarse mucho más toda vez que, desde lo didáctico, el docente se capacite para establecer nexos transversales entre matemáticas y programación en favor de los objetivos de aprendizaje trazados.
National competency frameworks for medical graduates: Is it time for the “SudanMeds”?
Authors: Abdullah Ahmad AbdulAzeem
Published: March 2020

Competency-based medical education has emerged recently as a novel model of medical training driven by its ability to reconcile the desired attributes in future physicians and address the overarching and demanding issues of the discipline in this century. The rising concerns of social accountability, patient safety, and cost effectiveness of medical education programs have contributed significantly to the popularity of this paradigm worldwide. This is translated in turn to the evolution of national competency frameworks for medical graduates that are increasingly implemented in different jurisdictions to standardize and ensure equivalent outcomes of medical curricula and readiness of their graduates to better serve their communities. Medical education in Sudan is deeply rooted in the history of the nation and the continent and is tinged with remarkable success and achievements. It is challenged nowadays with unprecedented expansion in basic medical education which may hinder the quality of medical schools’ programs and their graduates. This article explores the feasibility of one such framework in Sudan: the “SudanMeds” to ensure minimum standards and comparability of medical schools’ curricula and their outcomes across the Country. The framework would also arm the regulatory bodies with a tool for accreditation and recognition of basic medical education programs in Sudan and reflect quality assurance in their settings. Once this approach is deemed feasible, the contribution of all stakeholders from the highest top to the bottom – the government, the regulatory bodies, the public and civil organizations, and the medical schools’ community – is required to allow for creation, implementation, and follow-up of the “SudanMeds” framework.
Keywords: Sudan, competency-based medical education, national competency frameworks, medical schools, basic medical education
Improvement of the Medical Education Situation in Sudan: Collegectomy is Not the Only Management Option
Authors: Abdalla Mohamed Elhassan , Taha Mohamed Hassan
Published: March 2020

Sudan witnessed an increase in the number of colleges of medicine after the higher education revolution in the early 1990s. Many authors writing about medical education, both in Sudan and across the world, have described a negative correlation between the increased number of medical colleges and the quality of education provided by those colleges. Many educational leaders in Sudan are calling for action to deal with the issues arising from this great expansion of medical colleges, with opinions varying from collegectomies (closure of the colleges) to merging colleges.
Several strategies have been implemented in Canada, Iran, the Philippines and South Africa to deal with similar situations. These have included college support such as funding or technical support, changing the colleges’ educational strategies, modifying the curriculum, integrating (rather than merging) colleges, and collegectomies.
This paper outlines possible actions to be taken in response to the expansion of medical colleges in the Sudanese context. It explores the international experience with the situation in an attempt to augment the discussion with options that may help to improve medical education. 
Keywords: collegectomy, medical education, Sudan, social accountability
Modeling the effect of dynamic adsorption on the phase behavior of hydrocarbons in shale and tight reservoirs
Authors: Lobanova Olga A. , Indrupskiy Ilya M.
Published: March 2020

It is known that in shale and tight reservoirs, adsorption significantly affects hydrocarbon reserves and the processes of their production. This fact is reflected in the methods for calculating reserves and evaluating the production potential of shale and tight deposits. To calculate the initial content of the components, multi-component adsorption models are used. The impact on hydrocarbon production is taken into account through special dynamic permeability models for shale reservoirs. According to laboratory studies, adsorption can lead to significant changes not only in volume, but also in the composition of the produced fluids and their phase behavior. Previously, this effect could not be reproduced on the basis of mathematical models. The method proposed in this article allows modeling the phase behavior of a hydrocarbon mixture taking into account the dynamic adsorption/desorption of components in the process of pressure change. The method is applicable in the simulations of multi-component (compositional) flow and PVT-modeling on real objects. The phase behavior of hydrocarbons with pressure depletion in shale reservoirs has been simulated. It is shown that the neglect of the dynamic effect of adsorption / desorption leads to significant errors in predicting the saturation pressure, as well as the dynamics of changes in the composition of the produced fluid and of hydrocarbon component recovery.
Pore-scale investigation of the displacement fluid mechanics during two-phase flows in natural porous media under the dominance of capillary forces
Authors: Zakirov Timur R. , Khramchenkov Maxim G.
Published: March 2020

This paper presents the results of numerical simulations of two-phase flows in porous media under capillary forces dominance. For modeling of immiscible two-phase flow, the lattice Boltzmann equations with multi relaxation time operator were applied, and the interface phenomena was described with the color-gradient method. The objective of study is to establish direct links between quantitative characteristics of the flow and invasion events, using high temporal resolution when detecting simulation results. This is one of the few works where Haines jumps (rapid invasion event which occurs at meniscus displacing from narrow pore throat to its wide body) are considered in three-dimensional natural pore space, but the focus is also on the displacement mechanics after jumps. It was revealed the sequence of pore scale events which can be considered as a period of drainage process: rapid invasion event during Haines jump; finish of jump and continuation of uniform invasion in current pore; switching of mobile interfaces and displacement in new region. The detected interface change, along with Haines jump, is another distinctive feature of the capillary forces action. The change of the mobile interfaces is manifested in step-like behavior of the front movement. It was obtained that statistical distributions of pressure drops during Haines jumps obey lognormal law. When investigating the flow rate and surface tension effect on the pressure drop statistics it was revealed that these parameters practically don’t affect on the statistical distribution and influence only on the magnitude of pressure drops and the number of individual Haines jumps.
A model of the deep structure of the Earth’s crust and upper mantle in the area of the Karymshinsky gold-ore cluster according to geophysical data (South Kamchatka)
Authors: Nurmukhamedov Alexandr G. , Sidorov Mikhail D. , Moroz Yury F.
Published: March 2020

In the South of Kamchatka, modern geodynamic processes are actively taking place. A deep geological and geophysical model of the structure of the Earth’s crust and upper mantle along the regional profile of the Apacha Village-Mutnaya Bay in the zone of Tolmachevsky active magmatic center is presented. The profile passes near the South-Western border of the Karymshinskaya volcano-tectonic structure (VTS) and crosses the Ahomtenskaya VTS. The model created on the basis of integrated interpretation of materials of the earthquake converted-wave method (ECWM), gravity and magnetotelluric sounding (MTS). The thickness of the Earth’s crust along the profile varies from 30-33 km at the edges reaching 44-46 km, in its central part. The dominant feature of the model is a high-density formation – a block of the Earth’s crust, saturated with intrusions of the main and ultrabasic composition. The formation of the block is associated with a permeable zone between the crust and the upper mantle. In the block correlation of seismic boundaries is disturbed and in a density model the area with massive heterogeneity is allocated. A significant increase in depth to the M-Boundary in the center of the model is explained by the presence of a “bloated” transition layer between bark and mantle in this place. The thickness of the layer is about 10 km, and the density of the mantle reaches 3.4 g/cm3. It is assumed that this is a site of eklogization of breeds in a zone of paleosubduction of oceanic lithosphere under a continental. The area is favorable for the accumulation of meteor waters, which are in contact with high-temperature environment and postmagmatic solutions of intrusions, which leads to the formation of hydrothermal systems. The genetic connection of Karymshinsky gold-ore cluster with the intrusive array of medium-sour composition, allocated in the zone of the Tolmachevsky active Magmatic Center is shown.
ПОВЫШЕНИЕ ПРОПУСКНОЙ СПОСОБНОСТИ РАСПРЕДЕЛИТЕЛЬНЫХ ЭЛЕКТРИЧЕСКИХ СЕТЕЙ С ВОЗОБНОВЛЯЕМЫМИ ИСТОЧНИКАМИ ЭНЕРГИИ ПУТЕМ ИХ РЕКОНФИГУРАЦИИ
Authors: Черемисин Василий Титович , Третьяков Евгений Александрович
Published: March 2020

Актуальность исследования обусловлена необходимостью разработки технических решений по повышению пропускной способности перспективных распределительных электрических сетей железных дорог с возобновляемыми источниками энергии в темпе процессов изменения спроса на электроэнергию. Цель: повышение пропускной способности перспективных распределительных электрических сетей железных дорог с возобновляемыми источниками энергии путем оптимальной реконфигурации электрических схем. Объекты: распределительные электрические сети, источники распределенной генерации активной и реактивной мощности, методы оптимизации для решения задач в электроэнергетике, повышение пропускной способности электрической сети. Методы: оптимизационная задача решалась методом ветвей и границ, имитационное моделирование режимов электрических сетей выполнялось в Matlab Simulink. Результаты. Разработан алгоритм реконфигурации электрической сети для повышения ее пропускной способности на основе решения задач оптимизации нормальных режимов (статическая реконфигурация) и минимизации потребления электроэнергии без расчета установившихся режимов в темпе процессов изменения спроса на электроэнергию (динамическая реконфигурация). Для обеспечения допустимости режимов распределительных электрических сетей предложены подходы к управлению предложением активных (на базе возобновляемых источников) и реактивных мощностей и спросом активных потребителей. Представлены результаты реализации динамической реконфигурации для тестовой электрической схемы без учета управления предложением мощности и спросом активных потребителей, свидетельствующие об обоснованности предлагаемых подходов к повышению пропускной способности электрической сети.
An evaluation of the news about people with disabilities published in the written media
Authors: Davulcu Gizem Yesilyurt , Tezer Murat
Published: March 2020

The rights of people with disabilities remain a topic that is frequently mentioned by the media, and the media is often criticised for their lack of sensitivity to this issue. The purpose of this study is to analyse the content of the news on people with disabilities in the newspapers published in Northern Cyprus, in order to determine the trends and frequencies of the news published in the newspapers and to provide data based on written documents for awareness. This research uses a descriptive survey model. In this study, the acquisition and analysis of data were conducted through content analysis from qualitative data. It has been determined that these three major circulation newspapers in Northern Cyprus have included disability and special needs news at a certain rate although it has been reported that the news about disability and special needs is rarely published and the amount of news about disabilities is relatively inadequate.

Keywords: Disabled, special needs, written press, content analysis.
Determining the benefits of adventure tourism from a providers’ perspective in Fethiye
Authors: Yetim Ayse Celik
Published: March 2020

There has been a significant growth in adventure tourism globally in recent years including Turkey. Fethiye is a good example of this trend as the resort has great potential for adventure tourism. Adventure tourism helps holiday destinations to attract sustainable tourism management in comparison with the traditional sea, sun and sand form of tourism. The specific aim of this study is to reveal the benefits of adventure tourism for the adventure traveler and for the providing organization too. Questionnaire technique was used to gather data. The questionnaire was directed and employed towards the service providers. Data was collated between May and October 2014 and 161 questionnaires were completed via face to face survey methodology. Adventure travel/ traveler benefits were ascertained from enquiries appertaining to: experience, activity, environment and other miscellaneous factors. Findings of the survey identified that the greatest benefits of adventure tourism for the providing organizations were 'self actualization' and 'supporting culture and environment' both of which, from statistical analysis, appeared to have a direct impact on increased business opportunity and growth market potential. As a result of this study, it is surmised that the provision of serving such destinations with adventure tourism should be of significant benefit to travelers and service providers alike.
Keywords: adventure tourism, benefits of adventure tourism, adventure-based leisure/recreation, service providers
Elders With Anticipatory Trauma
Authors: Morgan Robert F.
Published: March 2020

Chronic institutionalized elders may be iatrogenically misdiagnosed as psychotic when their traumatic fears of present and future bring about a dysfunctional retreat into their past experience. Once physical causes are ruled out, a psychogenic approach for these patients may be indicated, particularly in group settings designed to reverse anticipatory trauma by confronting and resolving catastrophic fears of death and disability. These groups may be intensive, daily, and cover many months. Success will be followed by careful discharge planning with post-discharge support and follow-up. Research and replication on the re-introduction of this intervention holds promise for current 21st-century practice, particularly for these elder patients and their valuable memories. They have much of post-trauma value to contribute.
Psychometric Testing of the Persian Version of Macleod Clark Professional Identity Scale
Authors: Larijani Taraneh Taghavi , Bakhshi Fatemeh , Ghadirian Fataneh
Published: March 2020

Background

Professional identity (PI) is a key factor behind nurses' ability to provide quality care. PI assessment requires valid and reliable tools.

Aim

This study aimed to translate into Persian the 9-item Macleod Clark Professional Identity Scale (MCPIS) and evaluate its psychometric properties among Iranian nursing students.

Methods

In this methodological study, SMCPIS was translated into Persian through forward–backward translation. The face and content validity of the translated scale were respectively assessed by 10 nursing students and a panel of 10 experts. Then, 171 nursing students completed MCPIS and Nurse Self-Concept Questionnaire. Collected data were used for construct validity assessment through confirmatory factor analysis and criterion validity assessment through correlation analysis. Reliability assessment was also performed through the internal consistency and the test-retest methods.

Findings

Confirmatory factor analysis revealed good fit model for the scale. Criterion validity, measuring convergent validity, assessment also showed a significant correlation between the scores of MCPIS and Nurse Self-Concept Questionnaire (r = −0.2, P = .07). Cronbach's alpha and test–retest correlation coefficient were .87 and .72, respectively. Students' MCPIS scores ranged from 15 to 54 with a median of 44 (in the possible range of 9–54).

Conclusion

The Persian MCPIS is a valid and reliable tool for PI assessment. Further studies are recommended to produce evidence supporting the validity and reliability of the scale.
Why Does Social Development Lead to a Discord Between Man and Nature
Authors: Veber Alexander B.
Published: March 2020

The article addresses the questions of social development related to the issue of the relationship between society and nature. The subject of social development is man endowed with reason, that is, the ability to create tools for living, using natural resources for his or her own interests and goals. But in this there is no common purpose accepted in advance, the vector of development is determined by the elemental background, as the combined result of the actions of many people impelled by various motives under circumstances that they themselves did not choose. An unintended consequence of this development is the disruption of the natural environment, first the local, and with the transition to the industrial era, the global. The role of man in this process is due to his dualistic ancestral nature, the dichotomy of private and common interests. Modern society hypertrophies private interests, giving rise to a type of “selfish individual” with consumer expectations, and economic growth which has already gone beyond the biosphere potential of the planet. Awareness of the elemental background of development leads to an understanding of the need for conscious regulation and control. Instead of development aimed at private interests, there should come development aimed at the common interests of survival and the preservation of nature in a condition suitable for life. The concept of sustainable development is aimed at such a perspective. It is impossible to force the biosphere to develop “for man”, but it is possible to change values, behavior, production methods and consumer habits “for nature”. It is a long and difficult path, and the inertia of resistance is great, so the future remains uncertain.
Infeksi Toxocara canis pada Anjing Lokal di Banyuwangi
Authors: Savitri Rahayu Carlis , Oktaviana Vivi , Fikri Faisal
Published: March 2020

Studi kasus ini bertujuan untuk menjelaskan mengenai kasus infeksi penyakit helminthiasis dan siklus hidup parasit pada anjing lokal. Pemeriksaan dilakukan pada feses yang masih segar secara makroskopis dan mikroskopis. Pemeriksaan secara makroskopis dengan mengamati warna, bau, dan konsistensi feses. Pemeriksaan mikroskopis menggunakan uji natif, uji sedimen, dan uji apung. Berdasarkan gejala klinis dan hasil pemeriksaan feses didapatkan hasil bahwa anjing lokal posistif terinfeksi Toxocara canis.
Colangiopancreatografia retrógrada endoscópica por coledocolitíase no Hospital Universitário Walter Cantídio – UFC - avaliação de 56 casos
Authors: Matos Diego da Costa , Tavares Paulo Roberto Veras , Benevides Gustavo Melo , Costa Leonardo José Sales da , Carneiro Fred Olavo Andrade Aragão , Souza Miguel Ângelo Nobre e , Souza Marcellus Henrique Loiola Ponte de
Published: March 2020

A coledocolitíase é a causa mais frequente de obstrução biliar comumente vista na prática gastroenterológica. Objetivo: avaliar taxa e fatores relacionados ao sucesso assim como complicações nos pacientes com coledocolitíase, encaminhados para CPRE no HUWC-UFC. Metodologia: Estudo retrospectivo de 56 pacientes submetidos a 67 CPREs por coledocolitíase de 01/2017 a 04/2018. As informações foram retiradas do banco de dados da unidade de Endoscopia e prontuários. Analisadas as taxas de sucesso (retirada completa dos cálculos), complicações (pancreatite, hemorragia e perfuração) e fatores relacionados a estes desfechos. CEP: 43321014.6.0000.5045. Resultados: Houve predominância de mulheres (80%), com idade média de 51 anos. A taxa sucesso foi 89%. Com complementação terapêutica cirúrgica em 9%. 2% dos casos, estão ainda em seguimento ambulatorial. A complicação mais frequente foi pancreatite (7%), sendo (1) paciente com evolução ao óbito (1,8%). Sem a existência de perfurações ou hemorragias. Houve associação entre a presença de cálculos grandes (p= 0.05) e desproporção da via biliar (p=0.01) com insucesso da CPRE. Não houve nenhuma associação dos fatores avaliados com a presença de complicações. Conclusão: O estudo demonstra que houve alta taxa de sucesso, como descrito na literatura, sendo a presença de cálculos grandes e desproporção fatores relacionados ao insucesso da CPRE.
The Characterization of Black Pigeon Pea (Cajanus cajan) in Gunungkidul, Yogyakarta
Authors: Yuniastuti Endang , Sukaya Sukaya , Dewi Lintang Chandra , Delfianti Marshelina Noor Indah
Published: March 2020

Pigeon pea (Cajanus cajan) is potential as an alternative source of protein other than soybeans and is tolerant to dry conditions, but the cultivation of this plant has not been intensively carried out in Indonesia. This research aims to explore the characteristics of black pigeon pea and investigate the producing areas of black pigeon peas in Gunungkidul. Based on the field survey, 30 types of black pigeon peas were found. They were located in Pringapus and Klopoloro 1 Hamlets. This research was conducted on March-June 2018 in Yogyakarta. The observation variables in this study include research environmental condition and plant morphology, for examples, stems, leaves, flowers, pods and seeds. Morphological data were analyzed using NTSYS program. The results show that the height of pigeon pea plants ranged from 63 to 176 cm, the number of branches ranged from 18 to 35, the colors of stem were green to purple and the stem thickness was >13 mm. The similiarity of the coefficient value of pigeon peas in Pringapus ranged between 84% and 95%, while the similarity in Klopoloro 1 varied between 80% and 97%.
Quality of life and the prevalence of urinary incontinence after surgical treatment for gynecologic cancer: A questionnaire survey
Authors: Nakayama Noriko , Tsuji Tetsuya , Aoyama Makoto , Fujino Takafumi , Liu Meigen
Published: March 2020

Background Although there have been a number of reports on urinary voiding symptoms associated with surgical interventions for gynecologic cancer and post-voiding symptoms, there have been few reports on urinary storage symptoms such as urinary incontinence (UI) and overactive bladder (OAB). The purpose of this study was to examine the rates and impact on quality of life (QOL) of urinary storage symptoms after gynecologic cancer surgery.
Methods A questionnaire survey, including Japanese-language versions of the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), Overactive Bladder Symptom Score (OABSS), and Incontinence Impact Questionnaire-7 (IIQ-7), was distributed to gynecologic cancer patients who underwent hysterectomy between 2008 and 2013.
Results Of the 145 patients analyzed, 49 (33.8%) had UI pre-surgery and 76 (52.4%) had UI post-surgery, including 34 (35.4%) first-time UI patients, with a significant difference between pre- and post-surgery. Of the 49 subjects with UI pre-surgery, 43 (87.7%) had stress incontinence, while of the 76 patients with UI post-surgery, 44 (57.1%) had stress incontinence, and 24 (31.2%) had mixed incontinence. Seven (4.8%) subjects had OAB pre-surgery, whereas 19 (13.1%) had OAB symptoms post-surgery (including 15 first-time OAB patients), with a significant difference between pre- and post-surgery. IIQ-7 scores were markedly higher for patients with mixed incontinence post-surgery than for those with stress incontinence, indicating a lower QOL. Logistic regression analysis identified the number of Cesarean sections and days of urinary bladder catheterization as risk factors for postoperative UI.
Conclusions UI and OAB rates were higher after gynecologic cancer surgery than in the general female population. The mixed incontinence rate was markedly higher post-surgery; QOL was low for such patients due to the combination of urgency and stress incontinence. Multiple Cesarean sections and urinary bladder catheterization post-surgery were risk factors for post-surgical UI.
Psychometric Properties of Measures of substance use: A systematic review and meta-analysis of reliability, validity and diagnostic test accuracy
Authors: Santos Glenn-Milo , Strathdee Steffanie , El-Bassel Nabila , Patel Poonam , Subramanian Divya , Horyniak Danielle Horyniak , Cook Ryan R. , McCullagh Charlotte , Marotta Phillip , Choksi Foram , Kang Brian , Allen Isabel , Shoptaw Steven
Published: March 2020

Background Synthesis of psychometric properties of substance use measures to identify patterns of use and substance use disorders remains limited. To address this gap, we sought to systematically evaluate the psychometric properties of measures to detect substance use and misuse. Methods We conducted a systematic review and meta-analysis of literature on measures of substance classes associated with HIV risk (heroin, methamphetamine, cocaine, ecstasy, alcohol) that were published in English before June 2016 that reported at least one of the following psychometric outcomes of interest: internal consistency (alpha), test-retest/inter-rater reliability (kappa), sensitivity, specificity, positive predictive value, and negative predictive value. We used meta-analytic techniques to generate pooled summary estimates for these outcomes using random effects and hierarchical logistic regression models. Results Findings across 387 paper revealed that overall, 65% of pooled estimates for alpha were in the range of fair-to-excellent; 44% of estimates for kappa were in the range of fair-to-excellent. In addition, 69%, 97%, 37% and 96% of pooled estimates for sensitivity, specificity, positive predictive value, and negative predictive value, respectively, were in the range of moderate-to-excellent. Conclusion We conclude that many substance use measures had pooled summary estimates that were at the fair/moderate-to-excellent range across different psychometric outcomes. Most scales were conducted in English, within the United States, highlighting the need to test and validate these measures in more diverse settings. Additionally, the majority of studies had high risk of bias, indicating a need for more studies with higher methodological quality.
Surgical Workflow Simulation for the Design and Assessment of Operating Room Setups in Orthopedic Surgery
Authors: Neumann Juliane , Angrick Christine , Höhn Celina , Zajonz Dirk , Ghanem Mohamed , Roth Andreas , Neumuth Thomas
Published: March 2020

Background:
The design and internal layout of modern operating rooms (OR) are influencing the surgical team’s collaboration and communication, ergonomics, as well as intraoperative hygiene substantially. Yet, there is no objective method for the assessment and design of operating room setups for different surgical disciplines and intervention types available. The aim of this work is to establish an improved OR setup for common procedures in arthroplasty.
Methods
With the help of computer simulation, a method for the design and assessment of enhanced OR setups was developed. New OR setups were designed, analyzed in a computer simulation environment and evaluated in the actual intraoperative setting. Thereby, a 3D graphical simulation representation enabled the strong involvement of clinical stakeholders in all phases of the design and decision-making process of the new setup alternatives.
Results
The implementation of improved OR setups reduced the instrument handover time between the surgeon and the scrub nurse, the travel paths of the OR team as well as shortened the procedure duration. Additionally, the ergonomics of the OR staff were improved.
Conclusion
The developed simulation method was evaluated in the actual intraoperative setting and proved its benefit for the design and optimization of OR setups for different surgical intervention types. As a clinical result, enhanced setups for total knee arthroplasty and total hip arthroplasty surgeries were established in daily clinical routine and the OR efficiency was improved.
Involvement of ABC-transporters and acyltransferase 1 in intracellular cholesterol-mediated autophagy in bovine alveolar macrophages in response to the Bacillus Calmette-Guerin (BCG) infection
Authors: Xu Jinrui , Zhou Yanbing , Yang Yi , Lv Cuiping , Liu Xiaoming , Wang Yujiong
Published: March 2020

Background: Understanding pathogenic mechanisms is imperative for developing novel treatment to the tuberculosis, an important public health burden worldwide. Recent studies demonstrated that host cholesterol levels have implications in the establishment of Mycobacterium tuberculosis ( M. tuberculosis , Mtb ) i nfection in host cells, in which the intracellular cholesterol-mediated ATP-binding cassette transporters (ABC-transporters) and cholesterol acyltransferase1 (ACAT1) exhibited abilities to regulate macrophage autophagy induced by Mycobacterium bovis Bacillus Calmette–Guérin (BCG).
Methods: In the present report, the involvements of ABC-transporters and ACAT1-mediated intracellular cholesterol in autophagy of bovine alveolar macrophages induced by Mycobacterium bovis BCG were interrogated by enzymatic and biochemistry assays in vitro, including quantitative RT-PCR and immunoblotting assays.
Results: The results showed that a down-regulated expression of the ABC-transporters and ACAT1 in primary bovine alveolar macrophages (AMs) and murine RAW264.7 cells in response to BCG infection. The inhibited expression of ABC-transporters and ACAT1 was associated with the reduction of intracellular free cholesterol, which in turn induced autophagy in macrophages upon to the Mycobacterial infection. These results strongly suggest an involvement of ABC-transporters and ACAT1 in intracellular cholesterol-mediated autophagy in AMs in response to BCG infection.
Conclusion: This study thus provides an insight into into a mechanism by which the cholesterol metabolism regulated the autophagy in macrophages in response to mycobacterial infections .
Differences in factors influencing the use of eRehabilitation after stroke; a cross-sectional comparison between Brazilian and Dutch healthcare professionals
Authors: Brouns Berber , Bodegom-Vos Leti van , de Kloet Arend J. , Vlieland Thea P.M. Vliet , Gil Ingrid L.C. , Souza Lígia M.N. , Braga Lucia W. , Meesters Jorit J.L.
Published: March 2020

Introduction : To improve the use of eRehabilitation after stroke, the identification of barriers and facilitators influencing this use in different healthcare contexts around the world is needed. Therefore, this study aims to investigate differences and similarities in factors influencing the use of eRehabilitation after stroke among Brazilian Healthcare Professionals (BHP) and Dutch Healthcare Professionals (DHP). Method : A cross-sectional survey study including 88 statements about factors related to the use of eRehabilitation (4-point Likert scale; 1-4; unimportant-important/disagree-agree). The survey was conducted among BHP and DHP (physical therapists, rehabilitating physicians and psychologists). Descriptive statistics were used to analyse differences and similarities in factors influencing the use of eRehabilitation. Results : ninety-nine (response rate 30%) BHP and 105 (response rate 37%) DHP participated. Differences were found in the top-10 most influencing statements between BHP and DHP BHP rated the following factors as most important: sufficient support from the organisation (e.g. the rehabilitation centre) concerning resources and time, and potential benefits of the use of eRehabilitation for the patient. DHP rated the feasibility of the use of eRehabilitation for the patient (e.g. a helpdesk and good instructions) as most important for effective uptake. Top-10 least important statements were mostly similar; both BHP and DHP rated problems caused by stroke (e.g. aphasia or cognitive problems) or problems with resources (e.g. hardware and software) as least important for the uptake of eRehabilitation. Conclusion : The results indicate that the use of eRehabilitation after stroke by BHP and DHP is influenced by different factors. A tailored implementation strategy for both countries needs to be developed.