bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigating accommodation experience in budget hotels
Authors: Ren Lianping , Qiu Hanqin , Ma Caiwei , Lin Pearl M.C.
Published: August 2018

Purpose

This paper aims to explore the accommodation experience of customers in the budget hotel sector – a less explored but rapidly expanding sector in the hospitality industry. This study investigates the effects of such experience on customer behavior.

Design/methodology/approach

The study adopts a quantitative approach and draws on a comprehensive data set (N = 414) by using a quota sampling approach. The context of the study is the Chinese market, where budget hotels and the number of mass tourists (inbound and outbound) have increased tremendously.

Findings

This study identifies a behavioral pattern that differs from trends reported in prior studies. The finding shows that the relationship between customer experience and behavioral intentions is mediated by customer satisfaction, which similarly mediates the relationship between perceived value and behavioral intentions.

Research limitations/implications

The results provide significant implications for hoteliers in the budget hotel industry by calling for a differentiated marketing approach for this segment of customers. Furthermore, the study provides insights into the accommodation behavior of Chinese mass tourists. These findings can serve as reference for international budget hotel practitioners, especially those involved in hotels that target the increasing number of travelers from China.

Originality/value

The budget hotel sector is the first accommodation choice for many Chinese mass tourists. This study is the first to conduct a systematic exploration of the behavioral patterns of customers toward budget hotels in this context. Moreover, this study adopts a holistic approach by adopting an experiential view in measuring the overall experience of customers in budget hotels.
Post-migratory risk factors and asylum seekers’ mental health
Authors: Korup Kjærgaard Thomas , Koitzsch Jensen Natasja
Published: August 2018

Purpose

The purpose of this paper is to examine if the post-migrational risk factors, namely length of stay and number of relocations, are associated with asylum seekers’ mental health.

Design/methodology/approach

The review includes seven main studies published later than 2006 examining the effect of the asylum procedure on the mental health of asylum seekers. The articles were identified through the search databases PubMed, Embase and PsycINFO. A systematic search strategy based on the concepts of Patient, Intervention, Comparison, and Outcome has laid the groundwork for the findings of relevant articles.

Findings

Two out of three articles investigating the association between number of relocations and mental health among asylum seekers observed an effect on mental health. Three out of six studies found associations between length of stay in asylum centres and poor mental health. The overall assessment of the studies indicates an effect of the post-migrational risk factors.

Research limitations/implications

The included studies vary in study populations, outcome measures and methodical soundness.

Practical implications

The review suggests that length of stay in asylum centres and the number of relocations should be considered as risk factors for poor mental health of asylum seekers and, hence, considered in the organisational procedures in the asylum process.

Originality/value

To the best of the authors’ knowledge, this is the first review to specifically examine the literature on the association between the post-migratory risk factors, number of relocations and length of stay, in asylum centres and mental health among non-detained asylum seekers in Europe.
Do the heterogeneous determinants of life satisfaction affect differently across borrowers of diverse credit sources? A propensity score approach
Authors: Das Tiken , Choubey Manesh
Published: August 2018

Purpose

The purpose of this paper is to evaluate the non-monetary effect of credit access by providing an econometric framework which controls the problem of selection bias.

Design/methodology/approach

The study is conducted in Assam, India and uses a quasi-experiment design to gather primary data. The ordered probit model is used to evaluate the non-monetary impact of credit access. The paper uses a propensity score approach to check the robustness of the ordered probit model.

Findings

The study confirms the positive association of credit access to life satisfaction of borrowers. It is found that, in general, rural borrower’s life satisfaction is influenced by the ability and capacity to work, the value of physical assets of the borrowers as well as some other lenders’ and borrowers’ specific factors. But, the direction of causality of the factors influencing borrowers’ life satisfaction is remarkably different across credit sources.

Research limitations/implications

The study argues to provide productive investment opportunities to semiformal and informal borrowers while improving their life satisfaction score. Although the results are adjusted for selection and survivorship biases, it is impossible with the available data to assess which non-income factors explain the findings, and therefore this limitation is left to future research.

Originality/value

The study contributes to the literature of rural credit by assessing the probable differences among formal, semiformal and informal credit sources with respect to non-monetary impacts.
The US gender pay gap: the way forward
Authors: Pham Xuan , Fitzpatrick Laura , Wagner Richard
Published: August 2018

Purpose

The purpose of this paper is to examine why the gender pay gap (GPG) – with its significant social costs generated through disadvantaging half of the population – persists in the USA despite decades-long efforts toward eradication.

Design/methodology/approach

A social provisioning approach, rooted in heterodox economics, is used to examine institutions that create and maintain the US GPG. The GPG is not a natural phenomenon, and, thus, must be examined within a specific social and historical context.

Findings

The analysis finds that the institutions of capitalism and patriarchy have created and perpetuated the GPG; however, mainstream economic theory does not consider these institutions and goes as far as explaining away the problem. Current US policies are formulated from this mainstream economic perspective, and, thus, are inherently flawed. The authors propose a reorientation toward a social provisioning theoretical perspective to analyze the GPG, which provides a more meaningful and practical foundation for policy formulation.

Originality/value

This paper provides a comprehensive examination of effective and ineffective theories and policies for addressing the GPG. Additionally, the authors provide concrete policy recommendations to eradicate the GPG.
Work value orientations and worker well-being in the new economy
Authors: Shevchuk Andrey , Strebkov Denis , Davis Shannon N.
Published: August 2018

Purpose

The purpose of this paper is to integrate work values research with the Job Demands–Resources model to assess the role that work value orientations play in self-employed workers’ subjective well-being.

Design/methodology/approach

The paper analyzes unique data on freelancers participating in an online labor market (n=9,984).

Findings

Intrinsic work values are associated with greater subjective well-being, whereas extrinsic work values are associated with lower subjective well-being. Consistent with the buffer hypothesis, intrinsic work value orientation reduces the negative effect of working hours on worker’s well-being, and extrinsic orientation enhances the negative effect.

Originality/value

This paper calls into question the importance of working conditions relative to worker values when assessing the role that job demands and resources play in the new economy. As work becomes more demanding and employment relations more flexible, personal resources such as work value orientations may become increasingly important for worker’s well-being.
Tax morale and institutional theory: a systematic review
Authors: Horodnic Ioana Alexandra
Published: August 2018

Purpose

The purpose of this paper is to conduct a systematic review of the factors that shape tax morale. A large range of random explanatory variables identified in the literature as determinants of tax morale are synthesised and structured by drawing inspiration from the institutional theory.

Design/methodology/approach

To do this, a systematic search has been conducted using a library catalogue which provides access to more than 400 databases.

Findings

The finding is that the institutional theory provides a suitable theoretical basis to explore tax morale. Indeed, all the factors until now identified as determinants of tax morale (except the control variables/socio-demographic characteristics) can be categorised either as belonging to formal institutions or to informal institutions. The most salient factor is trust, with both vertical and horizontal trust positively related to tax morale.

Research limitations/implications

The outcome is a call for a more nuanced understanding of not only the effect of formal and informal institutions on tax morale but also how formal and informal institutions interact and alter each other and, consequently, affect tax morale.

Practical implications

The paper seeks to encourage governments to start recognising that as low tax morale arises when a gap exists between formal and informal institutions, they need to design policy measures aimed to reduce this gap, rather than persisting with deterrence measures.

Originality/value

This is the first systematic review of the factors that influence tax morale using an institutionalist lens.
Unequal at the college door
Authors: Tian Felicia F. , Chen Lin
Published: August 2018

Purpose

The purpose of this paper is to investigate the inequality in career constructions among freshmen in an elite university in Shanghai, China. The authors first investigated whether rural students and those from municipalities (zhi xia shi) and provincial capitals differ in their career awareness when arriving at college. After finding the difference, the authors explored how this initial difference in career awareness evolves and influences the career construction process in the freshman year.

Design/methodology/approach

This study used a complementary mixed-methods approach to monitor a cohort of students’ career construction process and the evolvement of their career awareness throughout the freshman year (n=210). Data collection included two surveys: students’ self-reflections and in-depth interviews to capture a holistic story.

Findings

The findings revealed that students differed in career awareness when arriving at college. This initial difference further evolved in the first year of college: students from municipalities and provincial capitals considered college a part of their career paths and began timely to construct their careers, whereas students from rural areas lagged behind. This study suggests that college maintains inequality, reinforcing the initial gap in career construction based on students’ family background.

Originality/value

College students differ in career prospects and associated skills when transitioning from school to work. Only a few studies have explored the role of college in shaping the career construction process during the college years. By exploring the process of career construction among freshmen, this study contributes to the growing literature on school-to-work transition and educational inequality in China.
Combining diaries and interviews in time-use studies
Authors: Nichols Leslie
Published: August 2018

Purpose

The purpose of this paper is to demonstrate the combined use of time-use diaries and interviews to get a fuller understanding of how people use their time, the factors that influence their time use, and their subjective perceptions of their time pressures. This paper focuses on how the methodology influenced the findings.

Design/methodology/approach

Participants kept a diary of their time use for one week and then participated in interviews to discuss their time use.

Findings

While the diaries yielded numerical data about participants’ time use, the interviews revealed the reasons behind their time choices. The complexity of Pakistani food preparation and the presence of in-laws in the home emerged as major factors. All participants expressed frustration with their time poverty.

Research limitations/implications

This was a small pilot study limited to eight participants.

Practical implications

This method gives researchers a more powerful tool for understanding not only how people use their time, but the social, cultural and economic forces behind their choices.

Social implications

Time poverty creates social inequities, especially among women and marginalized people. The methodology presented allows participants to have a voice in time-use studies and can help policy makers create policies that correct time poverty for disadvantaged groups.

Originality/value

This paper illustrates the usefulness of combining two existing methods for time-use studies in a new way for more powerful results.
Fabrication laboratories
Authors: Santos Gilberto , Murmura Federica , Bravi Laura
Published: August 2018

Purpose

The purpose of this paper is to analyze the current state of fabrication laboratories (Fab Lab), an international network of digital laboratories, which provides new technological tools for digital manufacturing that can be used from individual users, to small businesses and schools. The aim is to understand similarities and differences of skills, technologies used and customers served among the main European laboratories (Italy, France, Germany, the Netherlands and Spain) and the American ones.

Design/methodology/approach

Data from European and American Fab Labs were collected using a questionnaire survey performed on a total sample ofn=493 Fab Labs. The administration of the survey took place through e-mail; 73 Fab Labs participated to the survey, reaching a total response rate of 14.81 percent.

Findings

The results show that Italian laboratories are characterized by ample space available, but limited capacity for investment in machinery and technology. European Fab Labs are similar to the Italian Fab Labs, while the American ones are more heterogeneous in size. However, a fact that emerges clearly from the results is how American Fab Labs are more important realities than European ones in terms of turnover and investments. They are more similar to businesses with an independent financial support.

Originality/value

The novelty of the study resides in the issue considered and the experimental techniques used. Some qualitative case studies have been developed in the field, but no previous quantitative analyses have been developed on a large sample of Fab Labs, developing comparisons between European and American realities of these digital laboratories.
Developing a Decision Making Grid for determining proactive maintenance tactics
Authors: Shahin Arash , Aminsabouri Nahid , Kianfar Kamran
Published: August 2018

Purpose

The purpose of this paper is to further develop the Decision Making Grid (DMG) proposed by Ashraf Labib (e.g. Labib, 1998, 2004; Fernandez et al., 2003; Aslam-Zainudeen and Labib, 2011; Stephen and Labib, 2018; Seecharan et al., 2018) by proposing an innovative solution for determining proactive maintenance tactics based on mean time between failures (MTBF) and mean time to repair (MTTR) indicators.

Design/methodology/approach

First, the influence of MTTR and MTBF indicators on proactive maintenance tactics was computed. The tactics included risk-based maintenance (RBM), reliability-centered maintenance (RCM), total productive maintenance (TPM), design out maintenance (DOM), accessibility-centered maintenance (ACM) and business-centered maintenance (BCM). Then, the tactics were allocated to the cells of a DMG with MTTR and MTBF axes. The proposed approach was examined on 32 pieces of equipment of the Esfahan Steel Company and appropriate maintenance tactics were consequently determined.

Findings

The findings indicate that the DOM, BCM, RBM and ACM tactics with weights of 0.86, 0.94, 0.68 and 1.00 are located at the corners of the DMG, respectively. The two remaining tactics of TPM and RCM are located at the middle corners. Also, the results indicate that the share of tactics per spotted equipment in the grid as 62, 22 and 16 percent for RCM, DOM and BCM, respectively.

Research limitations/implications

While reactive and preventive maintenance strategies include corrective, prospective, predetermined, proactive and predictive policies, the focus of this study was merely on the tactics of proactive maintenance policy. The advantage of the developed DMG over Labib’s DMG lies in its application for equipment with the unique condition of the bathtub curve.

Originality/value

While the basic DMG has been mostly used regardless of the type of maintenance policies, this study provides a DMG for a specific application regarding the proactive policy. In addition, the heuristic approach proposed for the development of DMG distinguishes this study from other studies.
Family eJournal: benefits of online guided group journaling for women
Authors: Asbury Edward Titus , Casey Jennifer , Desai Krishna
Published: August 2018

Purpose

The purpose of this paper is to examine the benefits of online guided group journaling for an individual’s mental health. The authors focused on a specific social networking platform called Family eJournal.

Design/methodology/approach

In total, 51 female participants were recruited from an American university with an average age of 20 years. Participants completed an online survey called the Relationship and Lifestyle Questionnaire. The questionnaire utilized two subscales, the Multidimensional Scale of Perceived Social Support (Diener et al., 1985) and the Depression and Anxiety Stress Scale (Lovibond & Lovibond, 1995). In addition, the questionnaire also measured several items related to an individual’s health choices such as smoking or dieting. Half of the participants in the study were randomly assigned to the Family eJournal user group.

Findings

Following the ten-week time period, the Family eJournal group reported significantly higher social support and lower scores of depression compared to the non-Family eJournal control group. However, there was no difference between groups in regard to anxiety or health choices. Implications of online group journaling and future directions are discussed.

Research limitations/implications

Current findings suggest that online journal sharing may provide a buffer from depression. For those who experience a negative perception of social experiences, building and maintaining interpersonal relationships becomes increasingly difficult, furthering the experiences of social isolation. Therefore, the ability to self-disclose and share personal experiences is crucial, albeit difficult to express (Heinrich and Gullone, 2006; Wei et al., 2005). As depression increases, individuals may alter the types of social, cognitive and emotional behaviors they employ. In turn, online asynchronous communication platforms may foster a reduction in discomfort in self-disclosure and increase positive perceptions of social experiences.

Practical implications

The findings suggest that the SNS platform FamilyeJournal may provide a simple opportunity to improve family relationships. Asynchronous online communication is immune to drawbacks and barriers associated with traditional means of communication such as busy schedules and geographic disparity (Perron, 2002).

Social implications

Online social networking may be a beneficial way to connect with others and facilitate positive mental health.

Originality/value

While the authors have known the benefits of journaling for some time, few studies to date have examined the potential benefits of asynchronous communication via online journaling. Online journaling platforms may provide an attractive avenue for enhancing the well-being for individuals who have limited opportunities to communicate in real time.
Public policies for entrepreneurship and internationalization
Authors: Campos João , Braga Vitor , Correia Aldina
Published: August 2018

Purpose

The main concern of policymakers is to avoid the problems resulting from the economic crisis. One way to avoid these problems is to stimulate economic growth, as well as the economic activity, needed to reduce unemployment and increase well-being. Recent academic literature shows entrepreneurship as a key factor to increase economic growth, so it is important to understand a set of concepts related to this topic and their relevance to the economic growth of these firms. The purpose of this paper is to analyse some concepts about public policies associated with entrepreneurship and the internationalization processes of firms.

Design/methodology/approach

The findings result from a number of multivariate techniques based on the Global Entrepreneurship Monitor 2012 survey.

Findings

The data allowed calculating a coherence index that shows that respondents tend to associate the different responses, which suggests that there is a reputation effect when experts evaluate public policies.

Research limitations/implications

This paper takes advantages of one of the GEM limitations, i.e. data refer to perceptions, rather than on real data, to explore how different countries see a more or less dispersed perception of public policies effectiveness.

Practical implications

This paper informs policymaking and sheds light into the importance of building on a reputation to make policies more effective.

Originality/value

The coherence index developed in this paper is an original contribution, based on the dispersion of experts' perceptions on the effectiveness of public policies.
Academic libraries in Romania
Authors: Madge Octavia-Luciana
Published: August 2018

Purpose

The purpose of this paper is to investigate the results obtained from a study on cooperation, collaboration and partnerships between academic libraries in Romania.

Design/methodology/approach

The study is limited to the answers received from interviews with 11 of the 15 invited directors/heads of academic libraries from Romanian universities, but the findings can be extrapolated to assess the overall situation in this country.

Findings

The results’ analysis indicates that 73 percent of the participants (8 participants) consider cooperation in the activities of Romanian academic libraries as being at a low to medium level. National cooperation can be found only in relation to access to electronic information resources. Collaboration between libraries and other departments and services within universities exists, but collaboration with students and the teaching staff is less developed. Despite the small number of partnerships and collaborative projects in which Romanian academic libraries are involved, there is a desire to further develop such activities.

Originality/value

The study is the first of its kind undertaken in Romania and paves the way for further research on this issue.
A review of Gadamerian and Ricoeurian hermeneutics and its application to interpretive accounting research
Authors: Farooq Muhammad Bilal
Published: August 2018

Purpose

The study seeks to address the research question: “How can Gadamerian and Ricoeurian hermeneutics be operationalized in an interpretive accounting research project”? The purpose of this paper is twofold: first, to review the key hermeneutic concepts of philosophers Gadamer and Ricoeur; and second, to share insights from the researcher’s experience of applying Gadamerian and Ricoeurian hermeneutics to an interpretive accounting research project.

Design/methodology/approach

The paper draws on the extant literature and the researcher’s own experience using hermeneutics theory in an interpretive accounting research project involving in-depth interviews with organisational managers.

Findings

The process of interpretation is described using the core concept of the hermeneutic circle where the reader and the text engage in dialogue. The readers’ pre-understandings play a key role in this dialogue and assist in drawing meaning from the text. However, it is necessary for the reader to adopt a critically reflexive approach remaining alert for both unproductive pre-understandings and hidden power structures and ideologies in the text being interpreted. Each reading of a text involves the completion of one cycle of the hermeneutic circle in which the reader transitions from pre-configuration to configuration and ultimately re-configuration concluding with the reader acquiring new horizons of understanding. The researcher’s experience of applying hermeneutic theory to an interpretive accounting research project are reflected on and nine lessons are offered.

Originality/value

These insights will prove valuable to interpretive researchers within the social sciences, including accounting and management studies, as well as those working in the natural sciences.
Symbol error rate of MIMO single and double-Weibull fading channels with OSTBC and MRC
Authors: Tiwari Keerti , Saini Davinder S. , Bhooshan Sunil V.
Published: August 2018

Purpose

This paper aims to exploit an orthogonal space-time block code (OSTBC) and maximal ratio combining (MRC) techniques to evaluate error rate performance of multiple-input multiple-output system for different modulation schemes operating over single- and double-Weibull fading channels.

Design/methodology/approach

The authors provided a novel analytical expression for cumulative distribution function (CDF) of double-Weibull distribution in the form of Meijer-G function. They also evaluated probability density function (PDF) and CDF for single- and double-Weibull random variables. CDF-based closed-form expressions of symbol error rate (SER) are computed for the proposed systems’ design.

Findings

Based on simulation and analytical results, the authors have shown that double-Weibull fading which shows the cascaded nature of channel gives significantly poor SER performance compared to that of single-Weibull fading. Moreover, MRC offers an improved error rate performance compared to that of OSTBC. As the fading parameter increases for any modulation technique, the required signal-to-noise ratio (SNR) gap between single- and double-Weibull fading decreases. Finally, it is observed that the analytical results are a good approximation to simulation results.

Practical implications

For practical implication, the authors use a number of antennas at the base station, but solely to maximize performance, one can use receive diversity, i.e. MRC.

Originality/value

Using higher-order modulation (i.e. 16-QAM), 4 and 1 dB less SNR is required at high and less fading, respectively, in single-Weibull fading as compared to double-Weibull fading. Hence, at higher-order modulation, double-Weibull channel model performs better as compared to lower-order modulation.
Application of desirability function based response surface methodology (DRSM) for investigating the plasma arc cutting process of sailhard steel
Authors: Naik Deepak Kumar , Maity Kalipada
Published: August 2018

Purpose

Plasma arc cutting (PAC) is extensively applicable for cutting the materials in faster speed with better accuracy in different manufacturing industries. The cutting of sailhard steel plate plays a great challenge in plasma arc cutting process.

Design/methodology/approach

In this investigation, a special abrasion-resistant steel known as sailhard of 20 mm thickness plate has been cut by PAC machine. Cutting current, stand-off distance, cutting speed and gas pressure were selected as cutting parameters. The corresponding responses focused for this study are material removal rate, kerf and chamfer. L30 orthogonal array based on a central composite design (CCD) of response surface methodology (RSM) was used to design the run of the experiment. For predicting and modeling of optimal cutting conditions, a hybrid approach of desirability function-based response surface methodology (DRSM) was acquainted.

Findings

The result of this study determines that desirability index (DI) was affected significantly with the machining parameter as well as their interaction. A confirmation test was carried out to analyze the degree of effectiveness of DRSM technique.

Originality/value

In PAC, the selection of process parameters and effect of that parameter on the output responses is of greater value because of the selection of best cutting condition.
Investigating the effect of helix angle and pressure angle on bending stress in helical gear under dynamic state
Authors: Patil Prashant Jaysing , Patil Maharudra , Joshi Krishnakumar
Published: August 2018

Purpose

The aim of this paper is to study the effect of pressure angle and helix angle on bending stress at the root of helical gear tooth under dynamic state. Gear design is a highly complex process. The consistent demand to build low-cost, quieter and efficient machinery has resulted in a gradual change in gear design. Gear parameters such as pressure angle, helix angle, etc. affect the load-carrying capacity of gear teeth. Adequate load-carrying capacity of a gear is a prime requirement. The failure at the critical section because of bending stress is an unavoidable phenomenon. Besides this fact, the extent of these failures can be reduced by a proper gear design. The stresses produced under dynamic loading conditions in machine member differ considerably from those produced under static loading.

Design/methodology/approach

The present work is intended to study the effect of pressure angle and helix angle on the bending stress at the root of helical gear tooth under dynamic state. The photostress method has been used as experimental methods. Theoretical analysis was carried out by velocity factor method and Spott’s equation. LS DYNA has been used for finite element (FE) analysis.

Findings

The results show that experimental method gives a bending stress value that is closer to the true value, and bending stress varies with pressure angle and helix angle. The photostress technique gives clear knowledge of stress pattern at root of tooth.

Originality/value

The outcomes of this work help the designer use optimum weight-to-torque ratio of gear; this is ultimately going to reduce the total bulk of the gear box.
Enoch Powell's ‘Rivers of Blood’ Speech: Fifty Years On
Authors: Hickson Kevin
Published: August 2018

Fifty years ago, Enoch Powell made what still is one of the most notorious speeches in postwar British politics. Its tone was shocking for its use of inflammatory references to ethnic minority immigrants. Immigration continues to be divisive and references to it by politicians inevitably lead to comparisons with Powell. The aim of the collection is to examine Powell's speech from a number of perspectives, exploring how it was viewed both by contemporaries and in the light of subsequent developments. The objective of this article is to examine Powell's motivations, impact and legacy.
Becoming “Us”: Marital Name, Gender, and Agentic Work in Transition to Marriage
Authors: Castrén Anna‐Maija
Published: August 2018

Objective

The article examines gendered expectations in marital naming and gender differences in how Finnish couples of the opposite sex engage in agentic work when negotiating names in the transition to marriage.

Background

Whereas most literature focuses on women, this study investigates the decision‐making as a process participated in by both partners. Negotiation on names illustrates the process of becoming “us,” a new family unit in which the name is an important symbol. In this process, the Nordic ideal of gender equality effectuated by the Finnish Names Act, which treats partners symmetrically, collides with the practice of patrilineal surnaming considered as being the “traditional way.”

Method

A total of 19 couple interviews were analyzed from the perspective of gender reflexivity and agentic work engaged in by two partners.

Results

Qualitative analysis highlighted the following three patterns in couples' reasoning: patrilineal naming as self‐evident, “it's her choice,” and equivalence. In most cases, however, the couples resolved the ambivalence between gender equality and patrilineal naming practices by the agentic work of women, whereas men were privileged to withdraw from the negotiations.

Conclusion

Gendered dynamics of decision‐making point out the subtle ways in which a patriarchal mind‐set continues to have a hold on family formation at the micro‐level of family relationships despite the widespread acceptance of gender equality in society.
Displasia cleidocraneal: presentación de un caso
Authors: Ortega Rita Iris , Suárez Obando Fernando
Published: August 2018

La displasia cleidocraneal es una displasia esquelética de herencia autosómicadominante caracterizada por anomalías craneales, claviculares y dentales, causada por mutaciones o deleciones en el gen RUNX2. Se presenta el caso de una niña de 6,5 años que acude remitida por un retraso en el cierre de la fontanela anterior y en la osificación de la pelvis, en quien se realiza el diagnóstico por hallazgos clínicos y radiológicos.
Glomerulonefritis asociada a derivación de líquido cefalorraquídeo
Authors: Córdoba Juan Pablo , Pinto Ramírez Jessica Liliana , González González Camilo Alberto , González Martha Patricia , García Padilla Paola Karina , Contreras Villamizar Kateir Mariel , Hurtado Iriarte Maite Estibalitz
Published: August 2018

La nefritis por derivación es una glomerulonefritis mediada por inmunocomplejos,que saturan el sistema reticuloendotelial y se depositan en los capilares glomerulares,con lo que activan la cascada del complemento y la reacción inflamatoria crónica que lleva a una lesión renal. El diagnóstico clínico de las infecciones no es fácil; se da por gérmenes de baja virulencia que producen una infección crónica. Sin embargo, los cultivos pueden ser negativos. En este artículo se presenta un caso de nefritis por derivación tras dos años de colocación de una válvula ventriculoatrial, confirmada con biopsia renal, con posterior resolución tras su retiro. Los cultivos del paciente, así como los de la válvula, fueron negativos.
Incidencia de náusea y vómito postoperatorio y factores asociados en el Hospital Universitario de San Ignacio
Authors: Gempeler Rueda Fritz Eduardo , Miranda Pineda Nelcy , Garrido Hartmann Adriana , Echeverry Lombana Maria De La Paz , Tobos González Laura Margarita , Acosta Fernández Christian Fernando
Published: August 2018

Introducción: A pesar de los adelantos en la anestesiología actual, aún continúan presentándosenáuseas y vómito en el postoperatorio (NVPO) como una de las complicacionesmás frecuentes con una incidencia que oscila entre el 4,6 % y el 49,0 %. Objetivos:Describir la incidencia de náuseas y vómitos en el postoperatorio, e identificar posiblesfactores de riesgo y el tratamiento utilizado. Material y métodos: Se diseñó un estudioobservacional, para lo cual se recolectó información de 1191 pacientes mayores de 15años de edad, programados para procedimientos electivos. Resultados: La incidenciade NVPO encontrada fue del 8,1 %, (7,8 % para náuseas y 3,6 % para vómito) y supresentación se relacionó especialmente con el sexo femenino, cirugía laparoscópica ytiempo de anestesia mayor de 180 minutos.
Factores clínicos asociados con masa cerebral de novo en pacientes que ingresan con cefalea al departamento de urgencias
Authors: Ávila Álvarez Albert Alejandro , Pérez-Fernandez Jose Leonardo , Naranjo Millan Julian Alberto , Beltrán Carrascal Elkin José , Apráez Alvaro Andrés Montenegro , Aguiar Martínez Leonar Giovanni , Pinto Andres Felipe , Gómez Luisa Fernanda , Bravo Adriana Carolina , Cabrera Maria Carolina , Acosta Naranjo Maria Paula
Published: August 2018

La cefalea constituye uno de los principales síntomas de consulta en el servicio deurgencias y constituye un desafío para el médico. Objetivo: Determinar los factoresclínicos que están asociados con la presencia de masa cerebral en pacientes que debutancon cefalea. Metodología: Estudio retrospectivo de casos y controles. Se definió como caso cada paciente que consultó por cefalea con evidencia imagenológica por tomografía axial computarizada (TAC) o resonancia nuclear magnética (RMN)de masa cerebral. Los controles fueron pacientes con cefalea sin evidencia imagenológica de masa cerebral. El tamaño de muestra fue de 272 pacientes (62 casos y 210 controles).Para determinar los factores asociados al desenlace se realizó un análisis de regresión logística binaria, incluyendo variables plausibles con p < 0,2 en el análisis bivariado y aquellas biológicamente plausibles. Se calcularon los odds ratio ajustados (ORA) y sus respectivos intervalos de confianza. Se consideró significativo un valor de p < 0,5. Resultados: Las variables clínicas asociadas con la presencia de masa cerebral fueron: 1) antecedente de cáncer fuera del sistema nervioso central, 2) cefalea que empeora con las maniobras de Valsalva, 3) alteraciones en el examen motor y 4) cefalea que despierta al paciente en la noche. Conclusiones: Se encontró que las variables mencionadas constituyen signos de alarma predictivos de la presencia de cefalea secundaria a masa cerebral y son importantes en la evaluación de todo paciente que consultapor cefalea en el servicio de urgencias y pueden orientar para la toma de decisiones.
Exposición prenatal a misoprostol y malformaciones congénitas asociadas. Serie de casos
Authors: García Robles Reggie , Suárez Obando Fernando , López María Catalina , Zarante Montoya Ignacio
Published: August 2018

El misoprostol es una sustancia análoga de la prostaglandina E1 con propiedades abortivas de eficacia limitada, que se ha asociado con la presencia de alteraciones congénitas en recién nacidos expuestos in utero. Este artículo presenta cinco casos de recién nacidos con defectos congénitos captados a través del proyecto ECLAMC-Colombia y un caso valorado por interconsulta al servicio de Genética en el Hospital Universitario San Ignacio con antecedente de exposición in utero a misoprostol. En esta serie, las alteraciones más frecuentemente descritas asociadas a la exposición a misoprostol fueron pies equinovaros, afección de pares craneales y defectos por reducción de miembros. Aunque persiste la polémica sobre los efectos teratogénicos de este medicamento, es necesario reportar los casos en los que se encuentre al menos una asociación temporal entre exposición y malformaciones congénitas, con el objetivo de recabar evidencia sobre sus potenciales efectos teratogénicos.
Regulación epigenética en cáncer de pulmón: implicaciones para el clínico
Authors: Rojas Moreno Adriana Patricia , Bruges Ricardo Elias , Cañas Arboleda Alejandra , Jaramillo García Luis Fernando
Published: August 2018

En el mundo, el cáncer de pulmón es la principal causa de muerte por neoplasias, yello se debe a que su detección ocurre en los estadios más avanzados de la enfermedad(III o IV). Dentro de los factores de riesgo descritos en la generación de este cáncerse encuentran el consumo de tabaco, la inhalación y posterior acumulación de radón yasbestos en el tejido pulmonar, la contaminación ambiental y la presencia de alteracionesgenéticas y de factores epigenéticos que regulan la expresión o represión de genesinvolucrados con el desarrollo tumoral. Los mecanismos de regulación epigenética quepueden intervenir en la progresión tumoral son: la metilación del ADN, la modificacióncovalente de histonas y la presencia de ARN no codificantes. En las diferentes etapasde progresión tumoral se ha descrito la participación de los mecanismos epigenéticoscomo reguladores de procesos relacionados con proliferación, transición epiteliomesénquima,metástasis, apoptosis, entre otros. Esta revisión de tema se enfoca endescribir el papel de la epigenética en la progresión tumoral pulmonar y plantea laimportancia de ampliar el conocimiento en esta disciplina con fines de diagnóstico ytratamiento.
Síndrome hemofagocítico secundario a infección por tuberculosis extrapulmonar en población pediátrica, una patología de difícil diagnóstico
Authors: Brun Rocha Ernesto , Bedoya Henao Paula , Escobar Moriano Elena Patricia , Aguilar Mejía Javier Alfonso
Published: August 2018

El síndrome hemofagocítico (SHF) o linfohistiocitosis hemofagocítica (LHH) se caracteriza por una activación y proliferación de linfocitos o histiocitos, los cuales secundariamente presentan hemofagocitosis no controlada y sobreproducción de citocinas. Síntomas como fiebre de inicio agudo, linfadenopatía generalizada, hepatoesplenomegalia, hipofibrinogenemia e hipertrigliceridemia caracterizan el síndrome. Su etiología puede ser primaria o secundaria. La LHH primaria está relacionada con factores genéticos; la secundaria está asociada a procesos infecciosos, neoplásicos o autoinmunes. Es un síndrome clínico potencialmente mortal que se produce en todos los grupos de edad. La LHH es la consecuencia de una reacción hiperinflamatoria aguda e incontrolada, que en la mayoría de los casos es provocada por un agente infeccioso. Ocurre con predominio en pacientes inmunocomprometidos y habitualmente es fatal. La gran mayoría de casos están reportados con infecciones por herpes virus. Sin embargo, una gran cantidad de microrganismos se asocian a su etiología. La tuberculosis es una infección poco descrita como causa de LHH secundario. Su diagnóstico como etiología asociada es complejo y muy difícil. La posibilidad de  encontrar el Mycobacterium tuberculosis en los cultivos de muestras de tejido y líquido pleural es muy limitada, dado que la tuberculosis extrapulmonar es un proceso paucibacilar. Dentro de las herramientas diagnósticas disponibles, la medición de las concentraciones de adenosindeaminasa en el líquido pleural tiene una sensibilidad diagnóstica adecuada. Sus valores de corte siguen siendo materia de controversia.
Hearing triangles: Perceptual clarity, opacity, and symmetry of spectrotemporal sound shapes
Authors: Lembke Sven-Amin
Published: August 2018

In electroacoustic music, the spectromorphological approach commonly employs analogies to non-sonic phenomena like shapes, gestures, or textures. In acoustical terms, sound shapes can concern simple geometries on the spectrotemporal plane, for instance, a triangle that widens in frequency over time. To test the auditory relevance of such triangular sound shapes, two psychoacoustic experiments assessed if and how these shapes are perceived. Triangular sound-shape stimuli, created through granular synthesis, varied across the factors grain density, frequency and amplitude scales, and widening vs narrowing orientations. The perceptual investigation focused on three auditory qualities, derived in analogy to the visual description of a triangle: the clarity of the triangular outline, the opacity of the area enclosed by the outline, and the symmetry along the vertical dimension. These morphological qualities seemed to capture distinct perceptual aspects, each linked to different acoustical factors. Clarity of shape was conveyed even for sparse grain densities, while also exhibiting a perceptual bias for widening orientations. Opacity varied as a function of grain texture, whereas symmetry strongly depended on frequency and amplitude scales. The perception of sound shapes could relate to common perceptual cross-modal correspondences and share the same principles of perceptual grouping with vision.
Isometric Cervical Muscle Strength Does Not Affect Head Impact Kinematics in High School Boys’ Lacrosse
Authors: Kelshaw Patricia , Cortes Nelson , Caswell Amanda , Caswell Shane V.
Published: August 2018

A growing topic in research is that of cervical strength to potentially mitigate head impact kinematics (HIK) and concussion risk. The purpose of this research was two-fold: (a) Assess the effects of isometric cervical muscle strength (ICMS) on HIK in high school boys’ lacrosse, and (b) investigate the relationship between cervical anthropometrics and ICMS, to create greater feasibility to approximate ICMS. All participants wore accelerometers during the season, and had their ICMS measured. No significant differences existed among ICMS classifications and HIK measures (p > .05). Cervical circumference showed a positive, moderately strong relationship with ICMS in extension (r = .63, p = .02). Our findings do not support previous research that has identified ICMS as a modifiable risk factor for mitigating HIK.
Physical Education Graduate Student Socialization in a Research-Focused Master’s Program
Authors: Richards K. Andrew R. , Gaudreault Karen Lux , Simonton Kelly L. , Simonton Angela
Published: August 2018

Researchers have begun using occupational socialization theory to understand the experiences of physical education teacher education doctoral students and faculty members. Comparatively little work has been done with graduate students pursuing research-focused masters’ degrees. These programs can serve as pipelines into PhD programs and have implications for the process of becoming a faculty member. Using a qualitative methodology grounded in existential phenomenology, this 2-year longitudinal study sought to understand the perspectives of Angela and Kelly as they navigated the master’s degree program. Data were collected through interviews, an online discussion forum, and text message conversations. Data analysis resulted in the construction of three themes and associated subthemes to describe the data. The primary themes included: (a) adjusting to graduate student life, (b) the importance of relationships, and (c) preparing for life after graduate school. Results are discussed using occupational socialization theory, and implications for research and practice are suggested.
An Investigation Into the Reasons Physical Education Professionals Use Twitter
Authors: Harvey Stephen , Hyndman Brendon
Published: August 2018

Purpose: To date, there have been limited investigations relating to physical education (PE) professionals’ engagement in the use of Twitter. Consequently, the aim of the study was to investigate the reasons PE professionals use Twitter, with questions underpinned by Casey, Goodyear, and Armour’s three-level conceptual classification framework of Pedagogies of Technology. Method: The application of Leximancer text mining software was uniquely employed to text mine the survey data to determine the key themes and concepts. Results: It was discovered that PE professionals perceived the Twitter platform to be highly valuable to connect with others in the profession, learn from others, and share ideas (both within schools and more broadly) via a convenient, usable form of technology. Discussion/Conclusions: Understanding the reasons PE professionals use Twitter can provide a broader understanding for those contemplating the utilization of this platform and inform future Twitter/social media research directions for the field of PE.
Gestalt Psychological Principles in Developing Meaningful Understanding of Games and Sport in Physical Education
Authors: Pill Shane , Hyndman Brendon
Published: August 2018

In a games-based approach, the idea of understanding is located within the concept of games as decision-laden, problem-solving contexts. However, the concept of “understanding” is largely implicit in much of the germane literature. We are arguing for a more deliberate framework to approach the concept of understanding. We propose that the game-based approach to teaching physical education can be underpinned by the Gestalt psychological theoretical principles to provide students with more meaningful engagement in the process of learning to play games. The Gestalt psychological principles underpin the learning of games and sport through the Principle of Totality and the Principle of Psychological Isomorphism (Reproductive Thinking). The Gestalt psychological principles are underpinned by meaning-making, which is proposed as much “deeper” knowledge, developed over time, involving reflection, and agency. Although game-based approaches provide an alternative to technical and mechanical (progressive part) notions of what players need to know and do to be “skilled players,” in this paper, we question whether game-based approaches also encompass how students in physical education are learning with understanding.