bluuebunny/crossref_metadata_2025 huggingface dataset:
The Ultrasound-guided Proximal Intercostal Block: Anatomical study and clinical correlation to analgesia for breast surgery
Authors: Zinbonyahgoon Nantthasorn , Luksanapruksa Panya , Piyaselakul Sitha , Pangthipampai Pawinee , Lohasammakul Suphalerk , Luansritisakul Choopong , Mali-ong Sunsanee , Sateantantikul Nawaporn , Chueaboonchai Theera , Vlassakov Kamen
Published: May 2019

Background:
The ultrasound-guided proximal intercostal block (PICB) is performed at the proximal intercostal space (ICS) between the internal intercostal membrane (IIM) and the endothoracic fascia/parietal pleura (EFPP) complex. Injectate spread may follow several routes and allow for multilevel trunk analgesia. The goal of this study was to examine the anatomical spread of large-volume PICB injections and its relevance to breast surgery analgesia.
Methods:
Fifteen two-level PICBs were performed in ten soft-embalmed cadavers. Radiographic contrast mixed with methylene blue was injected at the 2nd(15ml) and 4th(25ml) ICS, respectively. Fluoroscopy and dissection were performed to examine the injectate spread. Additionally, the medical records of 12 patients who had PICB for breast surgery were reviewed for documented dermatomal levels of clinical hypoesthesia. The records of twelve matched patients who had the same operations without PICB were reviewed to compare analgesia and opioid consumption.
Results:
Median contrast/dye spread was 4(2-8) and 3(2-5) vertebral segments by fluoroscopy and dissection respectively. Dissection revealed injectate spread to the adjacent paravertebral space, T3 (60%) and T5 (27%), and cranio-caudal spread along the endothoracic fascia (80%). Clinically, the median documented area of hypoesthesia was 5(4-7) dermatomes with 100% and 92% of the injections covering adjacent T3 and T5 dermatomes, respectively. The patients with PICB had significantly lower perioperative opioid consumption and trend towards lower pain scores.
Conclusions:
In this anatomical study, PICB at the 2nd and 4th ICS produced lateral spread along the corresponding intercostal space, medial spread to the adjacent paravertebral/epidural space and cranio-caudal spread along the endothoracic fascial plane. Clinically, combined PICBs at the same levels resulted in consistent segmental chest wall analgesia and reduction in perioperative opioid consumption after breast surgery. The incomplete overlap between paravertebral spread in the anatomical study and area of hypoesthesia in our clinical findings, suggests that additional non-paravertebral routes of injectate distribution, such as the endothoracic fascial plane, may play important clinical role in the multi-level coverage provided by this block technique.
Genetic diversity of Plasmodium falciparum and genetic profile after artemisinin-based combination therapy (ACTs) deployment in Cameroon for the management of uncomplicated malaria in Children
Authors: Njuabe Metoh Theresia , Chen Jun-Hu , Gah Philip Fon , Xia Zhou , Moyou Somo.Roger , Zhou Xiao-Nong
Published: May 2019

Background
Plasmodium falciparum is the number one cause of malaria morbidity and mortality. Several methods of intervention have been deployed in Cameroon with an attempt to reduce malaria transmission. But evaluation methods mostly based on microscopy and immunology have proven to be cumbersome and expensive. This study aimed at analyzing the genetic diversity of P.falciparum and the impact of ACTs deployment on MOI
Method
350 clinical isolates were collected between 2012 and 2013 and, three P. falciparum loci namely, msp-1(block2), msp-2 (block3), and glurp, (region II) characterized by nested PCR and DNA sequencing.
Results
From this study, a total of 16 different pfmsp1 were identified, including K1, MAD20 and RO33 allelic families. The K1 and MAD20 were the predominant polymorphic allelic types at the msp-1 gene, whereas alleles belonging to 3D7/IC were more frequent at the msp-2 gene. A peculiarity of this study is that RO33 revealed a monomorphic pattern among the msp-1 allelic type. Msp-1 and msp-2 revealed considerably greater parasite diversity than glurp. A total of 27 different msp-2 genotypes were recorded of which 15 belonged to the 3D7-type and 12 to the FC27 allelic families. Alignment of peptides encoded by pfmsp1 and Pfmsp2 reveals that K1 polymorphism had the highest similarity in the P.fmsp1 and Pfmsp2 clade followed by MAD20 with 93% to 100% homology. Indicating that P. falciparum isolates from Cameroon present high identity with allelic sequences from other areas in Africa, suggesting that vaccine developed with k1 and MAD20 of Pfmsp1 allelic variant could be protective for Africa children. The MOI ranged from 2.51 for msp1 to 3.82 for msp2. The overall heterozygosity ranged from 0.55 for msp-1 to 0.96 for msp-2 consistent with the genetic pattern observed in hyperendemic areas.
Conclusion
The present study reveals that isolates from South West Region of Cameroon are mainly polyclonal with high MOI and highly diverse in respect to both msp-1 and msp-2 despite ACTs deployment aiming at reducing malaria transmission. This study lays emphasis on the use of MOI and genotyping of both msp-1 and msp-2 in the evaluation of malaria control intervention in malaria endemics countries.
Dimensión estética en la enseñanza de la filosofía: posibilidades de sensibilización frente a la diversidad ideológica en el posconflicto colombiano
Authors: Jaramillo Valencia Bairon , Betancur Buitrago Bryan
Published: May 2019

El presente artículo de investigación comprende los resultados y análisis derivados de una investigación que se centró en la dimensión estética de la enseñanza de la Filosofía, concretamente en estudiantes de educación media del Colegio Marco Fidel Suárez, Colombia. Como meta principal se buscó identificar cuál fue la incidencia que tuvieron las prácticas estéticas dentro de la enseñanza de la Filosofía a la hora de sensibilizar frente a la diversidad ideológica en el posconflicto colombiano; y para desarrollar este fin, se llevaron a cabo indagaciones sobre las percepciones de los jóvenes frente al posconflicto, y observaciones sobre los cambios perceptivos que implica observar obras de cine desde el área de la Filosofía. Este estudio fue de corte descriptivo y se fundamentó bajo un paradigma cualitativo con metodología estudio de caso. Las técnicas de recolección fueron: la entrevista semi-estructurada y la observación participante. Entre los hallazgos más representativos, se exhibe la utilidad y eficacia de incorporar nuevos enfoques educativos que dinamizan los procesos de enseñanza y aprendizaje, al igual que las ayudas didácticas y tecnológicas, las cuales demostraron funcionalidad durante la enseñanza de contenidos filosóficos.
Atypical Antipsychotics and Dyslipidemia- Experience at Psychiatry Hospital Hyderabad, Pakistan.
Authors: Khuhro Quratulain , Channa Naseem Aslam , Amur Safdar Ali , Para Muzna , Mugheri Muhammad Haneef , Soomro Najaf Ali
Published: May 2019

Objective: To evaluate effects of atypical antipsychotics on the serum lipid contents of inpatients suffering from psychosis at Psychiatry Hospital Hyderabad, Pakistan. Patients and Methods: Total 160 patients suffering from psychosis were randomly selected from psychiatry hospital Hyderabad, Sindh, Pakistan during October 2014 to September 2015 along with 188 control subjects and they were followed from baseline (drug naïve-first-episode psychosis (FEP) patients); on admission to 3rd month of their treatment with three different antipsychotic drugs (i.e. risperidone, olanzapine and clozapine). Blood samples were collected on admission and after completion of each month for analysis of serum lipid contents. Results: Concentration of serum high-density lipoprotein cholesterol (HDL–C), total cholesterol (TC), triglycerides (TGs), very low-density lipoprotein cholesterol (VLDL–C) as well as total lipids (TL) were significantly reduced in baseline psychotic patients when compared with controls. When 2nd and 3rd months risperidone treated psychotic patients were compared with baseline psychotic patients, TC, TG, VLDL–C and TL were significantly increased. Serum lipid contents in Olanzapine and Clozapine treated psychotic patients were significantly increased in 2nd and 3rd months as compared to baseline psychotic patients, whereas, reverse was true for HDL–C. The low-density lipoprotein cholesterol (LDL–C) was increased in 2nd month treated psychotic patients as compared to baseline psychotic patients. When all three drugs were compared, clozapine was found highly associated with dyslipidemia. Conclusion: Atypical Antipsychotics may play a role in developing dyslipidemia. Among three psychotic drugs Clozapine is the most significant in causing dyslipidemia to the psychotic patients in Pakistan.
Effect of Internet Addiction on Dietary Behavior and Lifestyle Characteristics Among University Students
Authors: Kamran Hafsa , Afreen Asma , Ahmed Zaheer
Published: May 2019

AbstractWith increased use of internet in daily lives, its negative effects are also being observed on physical, psychological and social health of individuals.Objective: To determine the effect of internet addiction (IA) on dietary behavior and lifestyle characteristics among university students.Methods: In this cross-sectional study, the subjects were students selected from four universities in Lahore, Pakistan through two-stage sampling (n = 322). Levels of Internet Addiction (IA) were assessed using Young Internet Addiction Test and demographics, dietary behavior and lifestyle factors using self-reportedquestionnaire.Results: Severe and moderate IA was present in 9.6% and 41.9% of population respectively. High prevalence was found among males, Private Sector University and engineering students. Frequent breakfast skipping, increased meal size and habit of snacking while using internet was found associated with IA. Internet Addicts were also used to eat less than recommended daily servings of dairy and fruit and more servings of meat group than their no internet addict counterparts (p < 0.05). Fast food and fried items were most consumed snacks, while carbonated beverages were most consumed beverages among internet addicts. IA was found associated with lesser physically activity, shorter duration of physical activity, disorganized sleep pattern and less duration of sleep (p < 0.05).Conclusion: Unhealthy dietary behavior and lifestyle habits were exhibited by internet addicts. University students should be educated regarding importance of balanced diet and healthy lifestyle for effectual primary prevention of numerous chronic diseases
Gender Differences in Nutritional Quality of Life of Young and Old Adults.
Authors: Saleem Fatima Javed , Jamil Farhat , Khalid Ruhi
Published: May 2019

Background: Healthy eating is essential for individuals’ physical as well as psychological wellbeing. Women’s focus on achieving thin ideal physique and men’s aspiration for muscular body is likely to impact their food intake and consequently Nutritional Quality of Life (NQoL). Moreover, NQoL varies across different age groups owing to the varying nutritional needs with increasing age. Investigating NQoL across gender and age has useful implications for health counseling and practice. Objectives| To investigate differences in nutritional quality of life among gender and different age groups. To investigate gender and age group differences in knowledge of nutritional value of food. Methodology| A descriptive cross-sectional research was conducted. The sample consisted of 200 participants i.e., 100 younger adults between age range of 18-23 years and 100 older adults between age range of 40-60 years. Gender of participants was equally represented in both age groups. Nutritional Quality of Life (NQoL) Instrument and a self-developed Nutritional Knowledge Questionnaire were administered on the sample to collect data. Results| Mean age of younger adults was 19.17 ± 1.18 and for older adults it was 48.17 ± 5.20. Findings showed that women scored significantly higher on psychological factor and social impact whereas men scored significantly higher on food impact and self-efficacy impact of NQoL. Moreover younger adults scored higher on self-efficacy than older adults and older adults scored higher on food impact, social impact, psychological factor and physical functioning than younger adults. Also interaction of gender and age was significant regarding knowledge of nutritional value of food; older women and younger men had more knowledge of nutritional value of food than younger women and older men. Conclusions| There were significant differences in nutritional quality of life. Also knowledge of nutritional value of food varied across gender and age groups.
Childhood Trauma and Effective Empirically Based Interventions
Authors: Clements Wendy , Williams Larry D. , David Tyrone , Wilson S. Lavi
Published: May 2019

Trauma affects many children in various ways globally. According to SAMHSA (2017), the “occurrence of child trauma is very prevalent, and 75% of children reported experiencing at least one traumatic event by age 16”. Traumatic events consist of “psychological, physical, or sexual abuse; community or school violence; witnessing or experiencing domestic violence; national disasters or terrorism; commercial sexual exploitation; sudden or violent loss of a loved one; refugee or war experiences; military family-related stressors; physical or sexual assault; neglect; and serious accidents or life-threatening illness” (SAMHSA, 2017). This literature review evaluates three different attachment-based, trauma-informed interventions for young children 0-7 years of age which are: Attachment and Bio-Behavioral Catchup (ABC), Child-Parent Psychotherapy (CPP), and Parent-Child Interaction Therapy (PCIT). Throughout this review, childhood trauma will be defined, and the current occurrence rates will be discussed. Furthermore, the descriptions of the above therapies, clinical trials, and research findings will be examined, and a discussion of the literature review findings will follow.
Basics of ICT in Teaching & Learning Process
Authors: Balamurugan K.
Published: May 2019

ICT—Information and Communication Technology is an extensional term for Information Technology (IT) that stresses the role of unified communications and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage, and...ICT helps teacher to pass information to students within a very little time. ICT helps teacher to design educational environment. ICT helps teacher to identify creative child in educational institute. ICT helps teacher to motivate students and growing interest in learning. The paper envisages the maximum or at least optimum utility of ICT for the process of teaching and learning.
Factores que provocan estrés en estudiantes de Enfermería
Authors: Palestina Bautista Carolina , Godínez Rodríguez María De los Ángeles
Published: May 2019

El estrés ha sido abordado desde diversas perspectivas puesto que es un problema de salud que cada día va en aumento, en la actualidad afecta a la mayoría de las personas.

El ambiente escolar influye directamente en el desempeño de los estudiantes por ello esta investigación tuvo el objetivo de conocer los factores que ocasionan estrés en los estudiantes de la Licenciatura de Enfermería de la Facultad de Estudios

Superiores Iztacala UNAM.

Metodología: Estudio cuantitativo, no experimental, descriptivo y transversal. La muestra fue no probabilística conformada por 100 estudiantes.

Se construyó un instrumento con una escala tipo Likert con cinco opciones de respuesta para medir el estrés en estudiantes, con 22 ítems divididos en 4 dimensiones. La validez del instrumento fue de criterio ya que contó con la opinión de expertos. La confiabilidad fue de una Alpha de Cronbrach de 0.85.

Resultados: El ítem “Estrés al no cumplir con tareas por sobrecarga de optativas” fue el mayormente citado por lo que fue el principal factor desencadenante de estrés en los estudiantes de enfermería con un resultado del 60%.

Discusión: los datos obtenidos son muy similares a los reportados por Mendoza y cols. (2010) quienes obtuvieron un 62.8% en las respuestas casi siempre y siempre en el estresor de “Sobrecarga de Trabajo escolar”.

Conclusiones se puede apreciar que la sobrecarga académica es un factor muy importante para que los estudiantes presenten estrés.
Formación científica en Enfermería. Un concepto que debe evolucionar
Authors: Alonso Trujillo Javier
Published: May 2019

Resumen

Los conceptos han evolucionado de manera natural a través de la historia de la humanidad. Cuando en investigación estos conceptos se convierten en variables subjetivas, es necesario contar con una definición conceptual. El diccionario de la Real Academia Española orienta el significado de las palabras que permiten definir un concepto. El objetivo de este ensayo es proponer una definición del concepto “Formación científica en Enfermería” que esté acorde con el contexto del siglo XXI. En la actualidad, los avances tecnológicos están promoviendo a gran velocidad cambios en las distintas esferas de la actividad humana. En las escuelas de todos los niveles, se presenta el dilema de enfrentar el aprendizaje escolar contra el aprendizaje experiencial extraescolar. El profesorado deberá ser capaz de propiciar aprendizajes, competencias y motivaciones que se traduzcan en el aula en acciones del alumnado que lo conduzcan a asumir valores y una formación sólida. La definición aquí propuesta, enfatiza el hecho de que las dimensiones que constituyen al concepto primero y constructo después son las competencias para la investigación y los indicadores dependen del plan de estudios.

Palabras clave: Formación científica, Enfermería, Competencias investigativas.

Abstract

The concepts have evolved in a natural way across the history of the humanity. When in investigation these concepts turn into subjective variables, it is necessary to possess a conceptual definition. The dictionary of the Royal Spanish Academy orientates the meaning of the words that allow to define a concept. The aim of this paper is to analyze and to propose a definition of the concept “scientific formation to nursing” that is according to the society of the 21st century. At present, the technological advances are promoting to great speed changes in the different spheres of the human activity. In the schools of all the levels, one presents the dilemma of facing the school learning against the learning out-of-school. The teachers will have to be capable of propitiating learnings, competitions and motivations that are translated in the classroom in actions of the student body that drive it to assume values and a solid formation. The definition here proposed,  it emphasizes the fact that the dimensions that they constitute to the first concept and constructo later they are the competitions for the investigation and the indicators depend on the study plan.

Key words: Scientific formation, Nursing, Competitions to research.
Teorías educativas en la enseñanza de enfermería
Authors: Acevedo Peña Margarita , Beltrán Lugo Norma Ivette
Published: May 2019

esumen

El estudiantado de Enfermería aprende los procedimientos encaminados al cuidado de la persona mediante varios métodos:  la observación, la ejecución-acción y la repetición técnica de los mismos en escenarios clínicos reales. Actualmente, la enseñanza de la Enfermería se encuentra sustentada en algunas corrientes educativas y teorías del aprendizaje. Debemos propiciar que la/el estudiante de Enfermería aprenda significativamente, lo que implica  atribuirle significado al material objeto de aprendizaje a partir de los conocimientos previos y la actualización de esquemas de conocimiento congruentes con cada situación. La teoría del aprendizaje social de Albert Bandura es clara y adecuada a la forma en que aprendemos las/los profesionales de Enfermería, de la misma forma que Ausubel aporta los aprendizajes significativos que han sido retomados en los planes y programas de estudio de enfermería.

Palabras clave: Procedimiento, Aprendizaje, Conocimiento, Enfermería, Estudiante.

Abstract

The nursing student will learn the procedures directed towards caring of patients through several methods: the observation, the execution-action and technical repetition of these in clinic scenarios. Currently, nursing teaching is supported by different teaching currents and learning theories. We’ve got to promote that nursing students learn meaningfully, which implies attributing meaning to the learning object material through previous knowledge and the updating learning schemes congruent to each situation.  Albert Bandura’s theory of social learning that is clear and adequate to the way nursing professionists learn, as well as Ausubel provides significative knowledge that has been re-taken in nursing study plans and programs.

Key words: Procedure, Learning, Knowledge, Nursing, Student
Actitud hacia la investigación científica de estudiantes de enfermería
Authors: Alonso Trujillo Javier , Alonso Ricardez Abraham , Valadez Díaz Dinora
Published: May 2019

Resumen 

El plan de estudios de la carrera de Enfermería en la Facultad de Estudios Superiores Iztacala, se orienta con mayor énfasis hacia el desempeño asistencial, y con menor intensidad hacia otros roles profesionales como el investigativo, eso puede representar un obstáculo para el aprendizaje de los contenidos de los módulos de metodología de la investigación e investigación en Enfermería. Esta investigación tiene como objetivo analizar el nivel de actitud hacia la investigación científica que presentan estudiantes de Enfermería y su relación con la evaluación diagnóstica y sumativa.

Metodología. Estudio observacional, transversal, prospectivo y analítico. El nivel investigativo es relacional. Nuestras variables de interés fueron la actitud hacia la investigación científica, la evaluación diagnóstica y la sumativa. Se diseñó y validó un instrumento que fue aplicado a una muestra de 32 estudiantes seleccionada por conveniencia. Se concluye que la actitud hacia la investigación no se correlaciona con el resultado de la evaluación diagnóstica ni sumativa por lo que el rendimiento académico está determinado por factores tradicionales como el esfuerzo individual y el aprendizaje autónomo más que por la actitud hacia la investigación.

Abstract 

The study plan of Nursing in the Faculty of Top Studies Iztacala, is orientated by major emphasis towards the welfare performance, and by minor intensity towards other professional roles as the researching, it can represent an obstacle for the learning of the contents of the modules of methodology of research and nursing research.

This study has as aim analyze the level of attitude towards the scientific research that there present nursing students and his relation with the diagnostic evaluation and formal.

Methodology. Study non-experimental, cross sectional, prospective and analytical. Research level relational. Our variables of interest were the attitude towards the scientific research, the diagnostic evaluation and formal. There was designed and validated an instrument that was applied to a sample of 32 students selected by convenience. We concludes that the attitude towards the research is not correlated by results of diagnostic evaluation and formal, therefore the academic performance is determined by traditional factors as the individual effort and the autonomous learning more than for the attitude towards research.
VALIDACIÓN DE UN INSTRUMENTO PARA EL AUTOMANEJO DEL DOLOR EN EL ADULTO MAYOR CON OSTEOARTRITIS
Authors: Muñoz Morales Alejandra , Peñarrieta María Isabel
Published: May 2019

Objetivo: Validar un instrumento que evalúe el Automanejo del Dolor en el Adulto Mayor con Osteoartritis. Método: Se realizó la validación en 100 Adultos Mayores con Osteoartritis, pacientes del Centro Estatal del Adulto Mayor de la ciudad de Saltillo; Coahuila de Zaragoza, México. Se empleó la validación de constructo y contenido mediante el consenso de juicio de expertos, adaptación cultural, Alpha de Cronbach y Análisis Factorial. Resultados: Los resultados del método de máxima verosimilitud mostró una prueba de bondad de ajuste de KMO (0,769) y prueba de Bartlett adecuada con 3 factores; identificándose las dimensiones de signos y síntomas, adherencia al tratamiento y el conocimiento de las características de dolor crónico en la osteoartritis; con una varianza que explica el 62%. Para demostrar la confiabilidad del constructo, se realizó la medición del test mediante la relación entre cada ítem, obteniéndose un Alpha de Cronbach de .812. El coeficiente de confiabilidad del constructo relacionada con la estabilidad en el tiempo entre el test y el retest está expresada con una correlación “r” de Pearson de 1 a .794 respectivamente, lo cual indica que tiene una correlación significativa al nivel 0.01 positiva bilateral dependiente entre las

variables. Conclusiones: El instrumento es una herramienta válida y confiable en idioma español para ser empleada no sólo por Enfermería sino por todo el personal del área de la Salud para realizar tamizaje del Automanejo del Dolor en Adulto Mayor con Osteoartritis. Se sugiere continuar con el proceso de validación en poblaciones diferentes o similares.
Dilema ético en la evacuación de un hospital ante un movimiento telúrico
Authors: Peralta Muñoz Ana Teresa , Godínez Rodríguez María De los Ángeles , Piña Mora Erick
Published: May 2019

Introducción. México está expuesto a una gran variedad de fenómenos geológicos, considerado como uno de los países con mayor actividad sísmica en el mundo por experimentar anualmente más de 90 sismos de una magnitud 4 o más en la escala de Richter, según datos del Fondo de Desastres Naturales.1 La OMS2 creó las Estrategias para la Reducción de Desastres, en las que integró en 2004 el término “Hospitales Seguros” con la finalidad de lograr que las personas tuvieran acceso a establecimientos de salud en correcto funcionamiento durante y después de un desastre natural. Desarrollo. En los hospitales conviven personas con afecciones en su salud, las cuales las limitan en movilidad y/o en sus funciones y merman su capacidad de toma de decisiones. De ellas, los pacientes en áreas críticas (quirófanos, cuidados intensivos) y pediátricas son los más vulnerables ante una contingencia. Por lo que es responsabilidad del personal de salud y brigadistas el prudente seguimiento de los protocolos de Protección Civil para su evacuación. Conclusiones. En el presente ensayo se exponen los principios éticos que el personal de salud enfrenta al momento de una emergencia de desastre natural, así como se contextualiza, en un marco normativo y también moral, las respuestas que permitan la ágil y oportuna acción ante estas situaciones, donde no existan juicios sobre la decisión tomada en el instante de la contingencia, pues es preciso definir con bases legales y éticas las responsabilidades a las que está comprometido para actuar durante y después de un siniestro. 
The effect of downward counterfactual thinking on organizational citizenship behavior
Authors: Shin Jaehyun , Lee Suran , Sohn YoungWoo
Published: May 2019

This study examined the effect of downward counterfactual thinking that imaging alternative relationships to the actual positive experiences with coworkers in the past on organizational citizenship behavior (OCB), through a moderated mediation model of positive meaning in work and perceived organizational support (POS). To address this mechanism, we conducted an experiment with 106 Korean employees, working in a variety of organizations, by assigning them to either counterfactual or factual conditions randomly. The results showed that participants who were in downward counterfactual thinking condition, manipulated to assume the alternative relationships to the actual positive experiences of helping other employees, evaluated more OCB than those who were in factual thinking condition. Positive meaning in work fully mediated the relationship between counterfactual reflection and OCB. There was also a significant interaction effect between positive meaning in work and POS on OCB. Specifically, positive meaning in work was more strongly associated with OCB as POS increased. Then, the result of examining the conditional indirect effect for a moderated mediation model showed that POS significantly moderated indirect path between positive meaning in work and OCB. Specifically, the mediating effect of positive meaning in work on OCB became stronger as POS increased. Limitations and further directions were discussed.
The effect of emotional intelligence on turnover behaviors among call center employees
Authors: Kim Sanghee , Lee Sangeun , Chang JaeYoon , Choi HaeYoun
Published: May 2019

The purpose of this study is to examine the effect of emotional intelligence (EI) on turnover behaviors among call center employees. We investigated the relationship between EI and turnover behaviors during 190 days at two call centers located in Korea. Survival analyses revealed that EI significantly reduced turnover rate after controlling for the Big 5 personality traits. Specifically, most of the employees with low EI quit their jobs within the first 2 months while only half of the employees with high EI did. The importance of EI in the emotional labor settings and suggestions for the future research are discussed.
Effects of proactive personality, openness to experience, Future time perspective, protean career orientation on future career design
Authors: Kim Sujin , Rie Juil
Published: May 2019

The Purpose of this study is to analyze psychological factors which be able to have an effect on Future career design. In our study, Future career design is consisted of Career planning, Career development, and Active-ageing. Based on personality-beliefs-behavior model, proactive personality and openness to experience are selected. as personality traits that have an effect on Future career design. Protean career orientation and Career future time perspective which are belief variables are chosen as mediation factors between two personalities and Future career design. In order to demonstrate mediation effects of beliefs factors, between Future career design and personalities, multi mediation analysis is used. Followings are results of analysis of data for 203 baby boomers having a jobs. First, protean career orientation, future time perspective, career future time perspective have full mediation effects, between two personalities and career plan. Second, protean career orientation and career future time perspective have partial mediation effects, between two personalities and career development. Third, between proactive personality and active ageing intention, future time perspective and career future time perspective have partial mediation effects. On the other hand, between openness to experience and active ageing intention, there are full mediation effects of 3 belief factors. As a result, our study demonstrate effects of personality factors and mediating factors of 3 beliefs for Future career designs. Our research also suggests that career management behavior be organized by personality-belief-behavior model. Lastly, this study suggests importance of psychological traits in career design for aged baby boomers.
Emotional labor actors, well-being, and objective performance
Authors: Park ChoonShin , Chang JaeYoon
Published: May 2019

To manage the emotional labor demands, employees may primarily rely on one strategy or the other while they may use surface and deep acting in conjunction. However, most research on emotional labor have investigated how two emotional labor strategies function to predict employee well-being separately. This variable-centered perspective is difficult to capture subpopulations of employees who may differ in their combined use of surface and deep acting. Using latent profile analysis, the current study examined potential emotional labor profiles from a person-centered perspective. We identified 5 emotional labor profiles: trying yet faking, some faking, high deep actors, high regulators, and moderates. Also this profiles differently predicted employee well-being (emotional exhaustion and job satisfaction) and objective performance (new sales and member increase). The present study captured the particular conditions in which emotional labor may lead to positive or negative outcomes for employees and organizations.
Who suffers the most from abusive supervision?
Authors: Gwak YeonSun , Jung Yeseul , Sohn YoungWoo
Published: May 2019

We examined the interactive effects of calling and competitive climate on the relationship between abusive supervision and turnover intention via organizational cynicism. We hypothesized that high levels of calling would strengthen, and high levels of competitive climate would mitigate, the negative indirect effects of abusive supervision on turnover intention via organizational cynicism. We conducted a survey using a sample of U.S. employees (N = 236) to test five hypotheses. As predicted, results demonstrate that under a high level of abusive supervision, individuals were more likely to become cynical about the organization, which in turn heightened turnover intention. Moderated mediation analyses found that calling exacerbated, but competitive climate attenuated, the mediating effect of organizational cynicism on the relationship between abusive supervision and turnover intention. Underlying mechanisms and implications, as well as avenues for future research, are discussed.
The effects of power distance orientation difference between leaders and followers on attitudes and behaviors in military organizations
Authors: Choi YoungNam , Sohn YoungWoo , Kang EunKyoung
Published: May 2019

The purpose of this study was to examine the effect of (in)congruence between leaders' and followers' power distance orientation(PDO) on organizational level variables and mediating effect of leader trust and cohesion in military organizations. A total of 288 ROK Army soldiers participated in this research and data were collected through survey. Inconsistent with previous research findings from person-supervisor fit studies, the results from polynomial regressions showed that congruence between leaders' and followers' PDO did not have a significant effect on organizational level variables in military organizations. Rather, when leaders' PDO was lower than followers', leader trust and cohesion decreased, and counterproductive work behavior(CWB) increased. Moreover, a double mediation estimate technique was conducted to investigate the impact of the PDO difference between leaders and followers on organizational level variables. We found that the relationship between the PDO difference and CWB was sequentially mediated by leader trust and cohesion. Based on the results, we discussed the implications and limitations of the study, and the directions for the future research.
The influence of newcomers’ proactive personality on their psychological contract
Authors: Kim Kyungmin
Published: May 2019

This study investigates the influence of newcomers’ personality on their psychological contract. Especially, we focused on the proactive personality of the newcomers who have worked less than one-year in the current organization. We hypothesized that the extent to which newcomers have proactive personality would have a positive effect on the perception of promise in the relationship with the organization. Also, we expected that this relationship would be mediated by the leader-member exchange. 433 newcomers participated in the survey, and structural equation modeling (SEM) has been adopted to test the hypotheses. As the result, individuals’ proactive personality had a positive influence on the perception of promises, and this relationship was partially mediated by the leader-member exchange level. These results imply that individuals’ psychological contract could be affected by personality factors as well as organizational factors. Also, it shows that the relationship newcomers make with their supervisor has an important role in perceiving psychological contract with the organization.
Fubini’s Theorem
Authors: Endou Noboru
Published: May 2019

Fubini theorem is an essential tool for the analysis of high-dimensional space [8], [2], [3], a theorem about the multiple integral and iterated integral. The author has been working on formalizing Fubini’s theorem over the past few years [4], [6] in the Mizar system [7], [1]. As a result, Fubini’s theorem (30) was proved in complete form by this article.
Minimally Empirical Double Hybrid Functionals Trained Against the GMTKN55 Database: revDSD-PBEP86-D4, revDOD-PBE-D4, and DOD-SCAN-D4
Authors: Santra Golokesh , Sylvetsky Nitai , Martin Gershom
Published: May 2019

We present a family of minimally empirical double-hybrid DFT functionals parametrized against the very large and diverse GMTKN55 benchmark. The very recently proposed wB97M(2) empirical double hybrid (with 16 empirical parameters) has the lowest WTMAD2 (weighted mean absolute deviation over GMTKN55) ever reported at 2.19 kcal/mol. However, our xrevDSD-PBEP86-D4 functional reaches a statistically equivalent WTMAD2=2.22 kcal/mol, using just a handful of empirical parameters, and the xrevDOD-PBEP86-D4 functional reaches 2.25 kcal/mol with just opposite-spin MP2 correlation, making it amenable to reduced-scaling algorithms. In general, the D4 empirical dispersion correction is clearly superior to D3BJ. If one eschews dispersion corrections of any kind, noDispSD-SCAN offers a viable alternative. Parametrization over the entire GMTKN55 dataset yields substantial improvement over the small training set previously employed in the DSD papers.
Rapid and Accurate Automatic Temperature Calibration of Disposable Screen-printed Heated Gold Electrodes
Authors: Colón-Rodríguez Sonivette , Schönhoff Martin , Abdulkhalek Juhaina , Quiñones-Ruíz Tatiana , Bentham Stephen W. , Bhowmik Gourav , Huang Mengbing , Langer Peter , Lednev Igor K. , Flechsig Gerd-Uwe
Published: May 2019

Joule-heated electrodes have been used to enhance electrochemical analysis. Due to such direct heating, a steep temperature gradient is created near the electrode surface. The heating device that provides the high-frequency AC (50 kHz or more) has to be calibrated, in order to apply the desired temperature during analysis. The applied temperature of the working electrode influences both its electrical resistance and the electrochemical potential of a redox couple. Open circuit potentiometric (OCP) measurements were performed automatically with screen-printed gold loop electrodes (Au-LE), while applying 50 kHz AC heating pulses of increasing intensity provided by a ThermaLab® AC generator. Potentiometric temperature calibrations were performed using 5 mM equimolar ferri/ferrocyanide in 0.1 M of potassium chloride at 20 °C bulk temperature. Potential differences produced during each heat pulse were used to automatically calculate the electrode temperature using the temperature coefficient of this redox couple (-1.6 mV/K). The electrode resistance values at each heating pulse were obtained by measuring the heating voltage and heating current. The automatic temperature calibration experiments with five Au-LEs were shown to be highly reproducible and precise, with an RSD for the temperature of 0.24% and 4% for resistance. The average margin error of OCP temperatures were ±0.66 K at a 95% confidence level. The temperature coefficient (α) of electrical resistivity of the screen-printed gold layers was found to be 0.0025 °C-1, which is 27% lower than the theoretical value for gold metal. These findings were confirmed by DC resistance measurements using a potentiostat. Comparing the OCP temperature with the resistivity method, the temperature difference was about 0.94 °C (2.8%). Both methods enable quick, reproducible and accurate temperature calibration for disposable Au-LE, which were also used for trace mercury detection in lake water samples
An Electrochemical Investigation of Interfacial Electron Uptake by the Sulfur Oxidizing Bacterium Thioclava electrotropha ElOx9
Authors: Karbelkar Amruta , Rowe Annette R , El-Naggar Moh
Published: May 2019

Extracellular electron transfer (EET) allows microbes to acquire energy from solid state electron acceptors and donors, such as environmental minerals. This process can also be harnessed at electrode interfaces in bioelectrochemical technologies including microbial fuel cells, microbial electrosynthesis, bioremediation, and wastewater treatment. Improving the performance of these technologies will benefit from a better fundamental understanding of EET in diverse microbial systems. While the mechanisms of outward (i.e. microbe-to-anode) EET is relatively well characterized, specifically in a few metal-reducing bacteria, the reverse process of inward EET from redox-active minerals or cathodes to bacteria remains poorly understood. This knowledge gap stems, at least partly, from the lack of well-established model organisms and general difficulties associated with laboratory studies in existing model systems. Recently, a sulfur oxidizing marine microbe, Thioclava electrotropha ElOx9, was demonstrated to perform electron uptake from cathodes. However, a detailed analysis of the electron uptake pathways has yet to be established, and electrochemical characterization has been limited to aerobic conditions. Here, we report a detailed amperometric and voltammetric characterization of ElOx9 cells coupling cathodic electron uptake to reduction of nitrate as the sole electron acceptor. We demonstrate that this inward EET by ElOx9 is facilitated by a direct-contact mechanism through a redox center with a formal potential of -94 mV vs SHE, rather than soluble intermediate electron carriers. In addition to the implications for understanding microbial sulfur oxidation in marine environments, this study highlights the potential for ElOx9 to serve as a convenient and readily culturable model organism for understanding the molecular mechanisms of inward EET.
MEMBANDINGKAN KINERJA MESIN BENSIN DUA LANGKAH SATU SILINDER PADA SEPEDA MOTOR MENGGUNAKAN VARIASI CAMPURAN BAHAN BAKAR MINYAK HASIL PROSES PIROLISIS SAMPAH PLASTIK DAN PREMIUM DENGAN PREMIUM MURNI
Authors: Wardoyo Wardoyo
Published: May 2019

This research was aimed to know the performance of engine using variation of plastic waste pyrolysis and premium process result-gasoline fuel mix and pure premium and comparing with pure premium. The fuel mix variation used consisted of 20% plastic waste pyrolysis process result oil, 80% premium and 49%plastic waste pyrolysis process result oil, 60%premium. The research procedures included firstly the tested engine given pure premium fuel and the engine was run for 2-3 minutes by installing a transmission gear in 4th position, then rotation, torsion, power and specific fuel consumption was measured. Furthermore, the engine was stopped and the fuel was substituted with varied plastic waste pyrolysis process result oil mix, the engine was re-run. The measurement rotations, torsion, power and specific fuel construction was conducted by the same way with pure premium fuel testing. Out of test results for the same rotation of 5000-8000 engine RPM using fuel mix of 20% plastic waste pyrolysis process result oil the average power was 10.04 HP, average torsion of 11.10 Nm, specific fuel consumption of 0.100 kg/hour HP and engine using fuel mix of 40% plastic waste pyrolysis process result oil the average power was 9.7 HP, average torsion of 10.82 NM, specific fuel consumption o f 0.068 kg/hour HP. While using pure premium the average power was 9.8 HP, average torsion of 10.94 Nm, specific fuel consumption was 0.103 kg/hour HP. If compared, so that engine performance using fuel mix of 40% plastic waste pyrolysis process result oil and 60% premium almost approached engine performance using pure premium fuel and actually 20% fuel mix of plastic waste pyrolysis process result oil and 80% premium was better.
PERANCANGAN AWAL SCALE MODEL GLIDER STTA-25-02_SAILPLANE
Authors: Firmansyah Hendrix Novianto , Junaidin Buyung , Mauliadi M. Fatha
Published: May 2019

The knowledge and experience in aircraft design, especially for glider or sailplane are very important to have. Today, process of designing glider developed so rapidly, especially in America and Europe, one of the significant achievement is the performance aspect of glider. For example, the German-built Eta has a wingspan 30.78 m, aspect ratio 51 and wing loading 50.97 kg/m2, with glide angle of 0.8 degree and 3 km altitude, the glider able to fly 213 km in horizontal direction. Therefore, as the first step to understand the preliminary design of glider, it is important to start with designing a scale model glider STTA-25-02_Sailplane. The goals of this design are to get geometry and configuration of the glider, to obtained stability of glider and to gain performance data that meet with design requirements and objectives data (DR&O). The conclusions from the preliminary design of scale model glider STTA-25-02_Sailplane are the geometry and configuration are good, for example the achivement in performance, the minimum sink rate 0.52 m/s, the glide ratio more than 20 at a cruising speed over 13 m/s, stall speed 11.45 m/s at angle of attack 0 degree. In addition glider STTA-25-02_Sailplane has static and dynamic stability, the static stability condition is indicated by the value of trim angle is positive 1 degree, curve of Cma and Clfi has negative slope, Cnfi curve has positive slope. The dynamic stability condition is indicated by the eigen value for each mode o f movement are negative except on phugoid and spiral mode, eigen value for short period -5.7681 ± 7.0010, phugoid 0.0403 ± 1.1136, rool damping -32.6243, dutch roll -1.0468 ± 3.4891 and spiral 0.1467. Positive eigen value on phugoid and spiral mode can be solved by adding a control parameter of the controlsurfaces.
SISTEM PAKAR DIAGNOSA PERMASALAHAN PADA PESAWAT CESSNA GRAND CARAVAN 208B MENGGUNAKAN METODE BACKWARD CHAINING
Authors: Rianto Rianto
Published: May 2019

Success of an aircraft mechanic is to find a problem and solve it. Analysis of the problems in the Cessna Grand Caravan 208B needed someone expert in the field of aircraft mechanics. In this research expert system is used to provide easily diagnose problems with the Cessna Grand Caravan 208B by adopting the knowledge possessed from a professional mechanic, then take it into the software, that will be called by the expert system. Backward Chaining method used to obtain the results as expected by a professional mechanic. Search tecniques used to supplement the backward chaining method is a Best-First Search technique. Best-First Search Techniques is a search technique to that used to perform a search based on the knowledge gained to conduct a proper solution where it is located.