bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical study of surface radiation and combined natural convection heat transfer in a solar cavity receiver
Authors: Milani Shirvan Kamel , Mamourian Mojtaba , Mirzakhanlari Soroush , Rahimi A.B. , Ellahi R. 
Published: August 2017

Purpose
The purpose of this paper is to present the numerical solutions of surface radiation and combined natural convection heat transfer in a solar cavity receiver. The paper aims to discuss sundry issues that take place in the said model.

Design/methodology/approach
The numerical solutions are developed by means of second-order upwind scheme using the SIMPLE algorithm.

Findings
The effects of physical factors such as Rayleigh number (104 ≤ Ra ≤ 106), inclination angels of insulated walls (0º ≤ θ ≤ 10º) and the wall surface emissivity (0 ≤ ε ≤ 1) on natural convection-surface radiation heat transfer rate are analyzed. Impact of sundry parameters on flow quantities are discussed and displayed via graphs and tables. Stream lines and isothermal lines have also been drawn in the region of cavity. The numerical results reveal that increasing the Rayleigh number, wall surface emissivity and inclination angels of insulated walls in an open cavity enhances the mean total Nusselt number. The variations of the surface radiation and natural convection heat transfer mean Nusselt numbers are very small to the inclination angle of θ, while a significant change is noted for the case of Rayleigh number and emissivity.

Originality/value
To the best of authors’ knowledge, this model is reported for the first time.
Application of the Delphi technique in healthcare maintenance
Authors: Njuangang Stanley , Liyanage Champika , Akintoye Akintola 
Published: August 2017

Purpose
The purpose of this paper is to examine the research design, issues and considerations in the application of the Delphi technique to identify, refine and rate the critical success factors and performance measures in maintenance-associated infections.

Design/methodology/approach
In-depth literature review through the application of open and axial coding were applied to formulate the interview and research questions. These were used to conduct an exploratory case study of two healthcare maintenance managers, randomly selected from two National Health Service Foundation Trusts in England. The results of exploratory case study provided the rationale for the application of the Delphi technique in this research. The different processes in the application of the Delphi technique in healthcare research are examined thoroughly.

Findings
This research demonstrates the need to apply and integrate different research methods to enhance the validity of the Delphi technique. The rationale for the application of the Delphi technique in this research is because some healthcare maintenance managers lack knowledge about basic infection control (IC) principles to make hospitals safe for patient care. The result of first round of the Delphi exercise is a useful contribution in its own rights. It identified a number of salient issues and differences in the opinions of the Delphi participants, noticeably between healthcare maintenance managers and members of the infection control team. It also resulted in useful suggestions and comments to improve the quality and presentation of the second- and third-round Delphi instruments.

Practical implications
This research provides a research methodology that can be adopted by researchers investigating new and emerging issues in the healthcare sector. As this research demonstrates, the Delphi technique is relevant in soliciting expert knowledge and opinion to identify performance measures to control maintenance-associated infections in hospitals. The methodology provided here could be applied by other researchers elsewhere to probe, investigate and generate rich information about new and emerging healthcare research topics.

Originality/value
The authors demonstrate how different research methods can be integrated to enhance the validity of the Delphi technique. For example, the results of an exploratory case study provided the rationale for the application of the Delphi technique investigating the key performance measures in maintenance-associated infections. The different processes involved in the application of the Delphi technique are also carefully explored and discussed in depth.
Service quality in public health clinics: perceptions of users and health professionals
Authors: Campos Domingos Fernandes , Negromonte Filho Rinaldo Bezerra , Castro Felipe Nalon 
Published: August 2017

Purpose
The purpose of this paper is to investigate the expectations and quality gaps in services provided at city public health clinics in the city of Natal, Brazil, from the perspective of patients and healthcare service providers.

Design/methodology/approach
The research sample consisted of 1,200 patients who used public health services and 265 providers – doctors, nutritionists, physiotherapists, psychologists, pharmacists and managers at three health clinics in the city of Natal, Brazil. A scale with 25 health service attributes was used in data collection. Summary statistics and t-test were used to analyze the data.

Findings
The results show that the providers think that users have lower levels of expectations than those indicated by the users in all attributes. Providers and users have the most approximate insights into what attributes are considered most important: explanations, level of knowledge and attention dispensed by health professionals. Users and providers perceived similar quality gaps for most of the attributes. The gaps were statistically the same, when comparing the mean quality shortcomings by means of a Student’s test, considering a significance level of 5 percent, obtained independently by the manifestation of users and providers.

Research limitations/implications
The results reveal only a photograph of the moment. The study did not consider the differences that may exist between groups with different income levels, genders or age groups. A qualitative study could improve the understanding of the differences and coincidences of the diverse points of views. A more advanced research could even study possibilities so that health managers could promote changes in the service, some of them low cost, as the health professionals training for contact with patients.

Practical implications
The evaluation of the service quality complemented by the matrix of opportunities, importance × quality gaps generates information to help make decisions in the rational allocation of available resources and improvement of the quality of the service delivered to patients. Besides, it offers a focus to prioritize specific actions.

Originality/value
It is important to compare the perceptions of service quality between patients and the healthcare service providers who work in direct contact with them. The managers can smooth out these differences and ensure, over time, customer satisfaction. In this study, providers were asked to express what they think about the expectations of patients and about their own service performance delivered. Thus, not only the traditional gap 5 was measured, but it was also possible to evaluate the distance between what providers think that patients need and their actual needs.
Development and psychometric evaluation of the breast size satisfaction scale
Authors: Pahlevan Sharif Saeed 
Published: August 2017

Purpose
The purpose of this paper is to develop and evaluate psychometrically an instrument named the Breast Size Satisfaction Scale (BSSS) to assess breast size satisfaction.

Design/methodology/approach
The present scale was developed using a set of 16 computer-generated 3D images of breasts to overcome some of the limitations of existing instruments. The images were presented to participants and they were asked to select the figure that most accurately depicted their actual breast size and the figure that most closely represented their ideal breast size. Breast size satisfaction was computed by subtracting the absolute value of the difference between ideal and actual perceived size from 16, such that higher values indicate greater breast size satisfaction.

Findings
Study 1 (n=65 female undergraduate students) showed good test-retest reliability and study 2 (n=1,000 Iranian women, aged 18 years and above) provided support for convergent validity using a nomological network approach.

Originality/value
The BSSS demonstrated good psychometric properties and thus can be used in future studies to assess breast size satisfaction among women.
Measures in curbing poor compliance to building control regulation among renovated terrace houses
Authors: Sabri Bibi Khairani Mohamed , Ujang Norsidah , Arif Afida Mastura Muhammad , Aripin Srazali 
Published: August 2017

Purpose
The purpose of this study is to explore measures taken by local authorities in curbing poor compliance among renovated terrace houses in the state of Selangor, Malaysia.

Design/methodology/approach
A qualitative methodology was selected in the data collection and analysis of the study. Seven local authority officers from seven selected local authorities were invited to participate in a face-to-face interview session to share their experience. A focus group was conducted for the purpose of confirming the validity of the data collected during the interview session. The focus group consisted of 32 officers in charge of building control enforcement invited from 11 local authorities within Selangor State.

Findings
The results show that collecting revenue rather than ensuring compliance is the main objective among the authorities responsible for enforcing the regulations. There are four common tools adopted to penalize the offenders, which are compounds, demolition, prosecution and court orders, with a mix of opinions on their objective achievement. Major obstacles identified in the implementation of the enforcement task are low staffing capacity in monitoring and inspection, difficulties in preparing investigation paper and problems carrying out the demolition of illegal extensions.

Originality/value
The study uncovers obstacles to enforcing regulations on home renovations. The findings contribute toward improving the enforcement practices of local building control authorities.
Controlling the failure of marine structures attached to the bottom of the sea under dynamic loading
Authors: Nematiyan Jelodar Hossein 
Published: August 2017

PurposeAnalysis of designing and controlling the failure of marine structures attached to the bottom of the sea under dynamic load obtained from the sea waves is one of the main engineering challenges in recent years. The circumstances of the onshore marine structures have their own complexity and the difficulty due to the effect of hydrodynamic factors and dynamic responses which are dominant in the marine environment. The paper aims to discuss these issues.Design/methodology/approachThe structure elements are composed of the metal pipe with a length of 5 m, outside diameter of 20 cm and thickness of 1.5 mm. the failure control with a safety factor of 2 indicates the absence of the above marine structure failure. It has been diagnosed to be trustworthy and reliable.FindingsIn this study, the control of marine steel structure failure with the height of 60 m under the dynamic load of the sea water waves having sinusoidal shape in the Caspian Sea has been studied and analyzed.Originality/valueIn this paper, the minimum and maximum internal force and movement in six directions of freedom were obtained for each element. To analyze and control the failure, the combination of stresses caused by static and dynamic loads has been used. According to the regulation of 10-360-AISC, the control was conducted.
Highly orthotropic panels structural stability, Farrar and Bloch waves theory
Authors: Castillo Acero Miguel 
Published: August 2017

Purpose
The purpose of this paper is to present the studies to develop structural highly orthotropic panels. These types of panels provide the capabilities required for structural morphing. They are highly deformable in one given direction; and in the perpendicular direction, one must be compliant to sustain the internal loads per certification stiffness and strength requirements.

Design/methodology/approach
Neither classic orthotropic panels nor regular cellular solids Bloch wave theories are strictly applicable on their study. A combination of computational method, MATLAB-coded, to analyze stability and classic structural beam theory is studied. Then, non-linear finite element method models are developed for an aerospace control surface application; their results are compared with reported Bloch wave sequences on periodic cellular solid panels.

Findings
The stability along stiffer direction is a requirement to obtain a continuous deformation and plasticization sequence of the cell rows in the perpendicular direction. A sample panel is sized and 3D modeled, and then produced using additive layer manufacturing process to demonstrate the initial stages of a validation and verification campaign.

Originality/value
This paper provides a new method to mechanical characterize highly orthotropic panels.
Earnings management and ownership structure in emerging market
Authors: Lassoued Naima , Ben Rejeb Attia Mouna , Sassi Houda 
Published: August 2017

Purpose
The purpose of this paper is to investigate whether ownership structure affects earnings management in the banking industry of emerging markets.

Design/methodology/approach
The empirical study is conducted using a sample of 134 banks from 12 Middle Eastern and North African countries. Econometrically speaking, the study used a panel data regression analysis.

Findings
The authors found convincing evidence that banks with more concentrated ownership use discretionary loan loss provisions to manage their earnings. The authors also found that state and institutional owners encourage earnings management, while family owners reduce this practice.

Practical implications
The findings would be valuable for investors since they should take into account ownership structure in order to reach a better investment decision. Moreover, regulatory reforms in emerging markets should push for more transparency about ownership structure, high levels of supervision, and external audit quality.

Originality/value
This study presents international evidence on the prominent role of owners in earnings management in emerging markets with weak shareholder rights protection.
A life in research
Authors: Ibarreche Santiago 
Published: August 2017

Purpose
This paper aims to be a conversation with Joan Enric Ricart, conducted by Santiago Ibarreche, about his career as a successful scholar, prolific author and founder of many organizations that have contributed to the enhancement of the academic profession in the area of management.

Design/methodology/approach
This paper is an interview.

Findings
The interview explores Ricart’s career, his achievements and continued search for excellence in terms of teaching, research and service in academia and society. It highlights his experiences as a faculty member, a prolific author and a founder of many organizations. It also highlights his collaborations with different institutions and professional organizations and his contributions to new areas of research such as the future of cities.

Originality/value
The interview in this special section, A Life in Research, brings out an individual scholar’s experience and history, not only as recognition of scholarly impact but also as recognition of the person.
Knowledge behavior model of e-government social media users
Authors: Shwartz-Asher Daphna , Chun Soon Ae , Adam Nabil R. 
Published: August 2017

Purpose
A social media user behavior model is presented as a function of different user types, i.e. light and heavy users. The users’ behaviors are analyzed in terms of knowledge creation, framing and targeting.

Design/methodological approach
Data consisting of 160,000 tweets by nearly 40,000 twitter users in the city of Newark (NJ, USA) were collected during the year 2014. An analysis was conducted to examine the hypothesis that different user types exhibit distinct behaviors driven from different motivations.

Findings
There are three important findings of this study. First, light users reuse existing content more often, while heavy and automated users create original content more often. Light users also use more sentiments than the heavy and automated users. Second, automated users frame more than heavy users, who frame more than light users. Third, light users tend to target a specific audience, while heavy and automated users broadcast to a general audience.

Research implications
Decision-makers can use this study to improve communication with their customers (the public) and allocate resources more effectively for better public services. For example, they can better identify subsets of users and then share and track specialized content to these subsets more effectively.

Originality/value
Despite the broad interest, there is insufficient research on many aspects of social media use, and very limited empirical research examining the relevance and impact of social media within the public sector. The social media user behavior model was established as a framework that can provide explanations for different social media knowledge behaviors exhibited by various subsets of users, in an e-government context.
Enteral feeding and its impact on family mealtime routines for caregivers of children with cerebral palsy: A mixed method study
Authors: Russell Marion , Jewell Vanessa , Poskey Gail A. , Russell Asa 
Published: August 2017

Background/aimEnteral feedings are part of the daily mealtime experience for many caregivers of children with cerebral palsy. The scope of occupational therapy practice incorporates multiple aspects of the enteral feeding process. Yet, the research in this area is very limited. The purpose of this study was to provide practitioners with better understanding of the impact enteral feedings of children with cerebral palsy have on family mealtime routines.MethodsUsing a complimentary mixed method approach, data were obtained through an online survey containing the Satisfaction Questionnaire with Gastrostomy Feeding (SAGA‐8) and supplementary questions, and qualitative semi‐structured phone interviews. Participants were caregivers of children with cerebral palsy who receive their primary nutrition through a gastrostomy tube.ResultsThis study's cohort consisted of n = 36, SAGA‐8, and n = 6 in‐depth interviews. The mean age of children of was 9.4 (6.94 SD) with a mean age of 3.4 (5.35 SD) when enteral feeding was introduced. While families' overall situations positively changed after the gastronomy tube placement, environmental barriers and length of feeding time continued to present a challenge to mealtime routines. The mixed methods data analysis revealed that successful adjustment to having a child with a gastronomy tube and problem solving are closely linked and a consistent part of mealtime experience.ConclusionFindings highlighted the necessity of comprehensive support from health professionals in achieving positive mealtime experience. Themes in this study indicated that caregivers would benefit from a professional with knowledge in the development and integration of rituals and routines to support positive outcomes.
Pregabalin reduces opioid consumption and hyperalgesia but not pain intensity after laparoscopic donor nephrectomy
Authors: Myhre M. , Romundstad L. , Stubhaug A. 
Published: August 2017

BackgroundGabapentinoids are increasingly used to reduce acute postoperative pain, opioid consumption and opioid‐related adverse effects. We explored the opioid‐sparing, analgesic and anti‐hyperalgesic effect of perioperative administered pregabalin in laparoscopic living donor nephrectomy.MethodsIn this randomized controlled trial, 80 patients were recruited and randomized to receive pregabalin 150 mg twice daily or placebo on the day of surgery and the first postoperative day as part of a multimodal analgesic regimen. Primary outcome was opioid consumption 0–48 h after surgery. Secondary outcomes were pain intensity at rest and with movement 0–48 h after surgery using the 0–10 Numeric Rating Scale and incisional hyperalgesia measured 24 h post‐surgery and at hospital discharge. Further secondary outcomes were adverse effects. Persistent post‐surgical pain was registered 6 weeks, 6 and 12 months after surgery.ResultsPregabalin significantly reduced opioid consumption compared with placebo 0–48 h after surgery (median mg [25th, 75th percentile]); 29.0 (22.0–45.5) vs. 41.8 (25.8–63.6) (P = 0.04). Pain intensity 0–48 h after surgery calculated as area under the pain (NRS) vs. time curve was not statistically different between groups at rest (P = 0.12) or with movement (P = 0.21). Pregabalin decreased incisional hyperalgesia 24 h after surgery (median cm [25th, 75th percentile] 8.5 (1.0–18.5) vs. 15.5 (9.5–24.0) (P = 0.02). Nausea (P ≤ 0.01), use of antiemetics (P ≤ 0.01) and pain‐related sleep interference (P = 0.02) were reduced with pregabalin.ConclusionsPerioperative pregabalin added to a multimodal analgesic regimen was opioid‐sparing, but made no difference to pain intensity score 0–48 h after surgery. Pregabalin may reduce incisional hyperalgesia on the first day after surgery.
The effect of adjunctive telmisartan treatment on psychopathology and cognition in patients with schizophrenia
Authors: Fan X. , Song X. , Zhao M. , Jarskog L. F. , Natarajan R. , Shukair N. , Freudenreich O. , Henderson D. C. , Goff D. C. 
Published: August 2017

ObjectiveThis study examined the effect of adjunctive telmisartan on psychopathology and cognition in olanzapine‐ or clozapine‐treated patients with schizophrenia.MethodIn a 12‐week randomized, double‐blind, placebo‐controlled study, patients diagnosed with schizophrenia or schizoaffective disorder received either telmisartan (80 mg once per day) or placebo. Psychopathology was assessed using the Positive and Negative Syndrome Scale (PANSS) and the Scale for Assessment of Negative Symptoms (SANS), and a neuropsychological battery was used to assess cognitive performance. Assessments for psychopathology and cognition were conducted at baseline and week 12.ResultsFifty‐four subjects were randomized, and 43 completed the study (22 in the telmisartan group, 21 in the placebo group). After 12‐weeks of treatment, the telmisartan group had a significant decrease in PANSS total score compared withthe placebo group (mean ± SD: ‐ 4.1 ± 8.1 vs. 0.4 ± 7.5, P = 0.038, SCohen's d = 0.57). There were no significant differences between the two groups in change from baseline to week 12 in PANSS subscale scores, SANS total score, or any cognitive measures (P > 0.100).ConclusionThe present study suggests that adjunctive treatment with telmisartan may improve schizophrenia symptoms. Future trials with larger sample sizes and longer treatment durations are warranted.