bluuebunny/crossref_metadata_2025_split huggingface dataset:
Brazilian managers’ ageism: a multiplex perspective
Authors: Rego Arménio , Vitória Andreia , Tupinambá António , Júnior Dálcio Reis , Reis Dálcio , Cunha Miguel Pina e , Lourenço-Gil Rui 
Published: April 2018

PurposeThe purpose of this paper is to explore the Brazilian managers’ attitudes toward older workers, and how those attitudes explain HRM decisions in hypothetical scenarios.Design/methodology/approachBrazilian managers (n=201) reported their attitudes toward older workers and their decisions in scenarios involving an older vs a younger applicant/worker.FindingsIn spite of expressing positive attitudes toward older workers, a significant number of managers chose a younger one even when the older worker is described as more productive. To build a better understanding of how attitudes predict decisions, it is necessary to identify attitudinal profiles and the interplay between attitudinal dimensions, rather than simply studying each dimension separately. Attitudinal profiling also shows that some managers discriminate against younger workers, a finding, that is, ignored when (only) regressions are taken into account. The managers’ attitudes and behavioral intentions relate with their age. Evidence does not support the double jeopardy effect against older women workers.Research limitations/implicationsThe sample is small. The scenarios cover a reduced number of HRM decisions. The data about attitudes and decisions were collected simultaneously from a single source. The findings may be influenced by idiosyncrasies of the context. Future studies should also consider real situations, not hypothetical ones.Practical implicationsEfforts must be made (e.g. via training and development) to raise managers’ awareness about the consequences of ageism in organizations.Originality/valueEmpirical studies about managers’ perceptions/attitudes toward older workers are scarce. Studies in the Brazilian context are even scarcer.
What is the Iron Triangle, and how has it changed?
Authors: Pollack Julien , Helm Jane , Adler Daniel 
Published: April 2018

Purpose
The Iron Triangle, also called the Triple Constraint, is a central concept to project management research and practice, representing the relationship between key performance criteria. However, there is disagreement about which criteria should be represented on the vertices of this triangle. The purpose of this paper is to explore which concepts are part of the Iron Triangle, and how these concepts have changed over time.

Design/methodology/approach
This paper explores 45 years of project management research, drawing on a database of 109,804 records from 1970 to 2015. Three corpora were constructed, representing the project management and Time, Cost, and Quality Management literature. Time and Cost are consistently identified as part of the Iron Triangle. However, the status of quality is contested. Key concepts in the project management literature were explored using scientometric research techniques, to understand the relationship between these concepts.

Findings
Significant links were found between Time, Cost, and Quality, verifying these concepts as the vertices on the Iron Triangle. These links were significantly stronger than links to alternatives, such as Scope, Performance, or Requirements. Other concepts that are core to the Iron Triangle were also identified, and how these have changed over time.

Originality/value
This research develops the understanding of a key project management concept by clarifying which concepts are part of the Iron Triangle, based on evidence of how the concept is used in research. This paper also reveals the context in which this concept is used, and how this has changed over the last 45 years.
Why people participate in the sharing economy: an empirical investigation of Uber
Authors: Lee Zach W.Y. , Chan Tommy K.H. , Balaji M.S. , Chong Alain Yee-Loong 
Published: April 2018

Purpose
The purpose of this paper is to examine the effects of inhibiting, motivating, and technological factors on users’ intention to participate in the sharing economy.

Design/methodology/approach
A self-reported online survey was conducted among Uber users in Hong Kong. A total of 295 valid responses were collected. The research model was empirically tested using the structural equation modeling technique.

Findings
The results suggested that perceived risks, perceived benefits, trust in the platform, and perceived platform qualities were significant predictors of users’ intention to participate in Uber.

Research limitations/implications
This study bridged the research gaps in the sharing economy literature by examining the effects of perceived risks, perceived benefits, and trust in the platform on users’ intention to participate in the sharing economy. Moreover, this study enriched the extended valence framework by incorporating perceived platform qualities into the research model, responding to the calls for the inclusion of technological variables in information systems research.

Practical implications
The findings provided practitioners with insights into enhancing users’ intention to participate in the sharing economy.

Originality/value
This study presented one of the first attempts to systematically examine the effects of inhibiting, motivating, and technological factors on users’ intention to participate in the sharing economy.
The influence of creative accounting on the credibility of accounting reports
Authors: Akpanuko Essien Ekerette , Umoren Ntiedo John 
Published: April 2018

Purpose
The extent to which accounting reports and disclosures provide shareholders and other interested parties with reliable information to permit informed investment decisions and true valuation of firms, has remained in doubts. The presumed bane for the failure of these reports to live up to expectation has been creative accounting. Most studies view this practice as unethical and should be stopped; others admit that although it contributes to enterprise failures, loss of investments and economic crisis, it as a necessary and legitimate practice. This paper aims to evaluate the extent to which this creativity has contributed to the failures of enterprises, identifies motivations for this practices and the challenges to true and fair reporting and transparent disclosures.

Design/methodology/approach
The study adopts the survey method. Questionnaire were administered to 80 accountants in banks and other enterprises with parents companies outside Nigeria and secondary data collected on failed enterprises in the world. The data collected were descriptively analysed.

Findings
The findings were different from findings of previous studies. It was discovered that accounting creativity is euphemism and contributes 90% to the unfair reporting of firms operations. The creativity in those practices is motivated by greed and intended to deceive the public, potential investors and shareholders and increases the rate of enterprise failures at a decreasing rate. However, the study revealed that the many regulations without adequate checks, punishments and rewards complement creative accounting in providing the foundation for make-believe, cosmetic and unfair reporting.

Research limitations/implications
The use of questionnaire and the subjective nature of the responses are the limitations of this study.

Practical implications
Improved reporting and valuation of firms are the practical implications.

Social implications
Reduction in failures may result in loss of employment and other social implications.

Originality/value
The research is original and born out of the desire to improve accounting reports and shareholders value.
Consumers’ perception of usability of product packaging and impulse buying
Authors: Bahrainizad Manijeh , Rajabi Azadeh 
Published: April 2018

Purpose
This paper aims to investigate the impact of consumers’ perception of usability of product packaging on impulse buying in terms of its shape, color, material, label and size.

Design/methodology/approach
A structural equation model was used for testing the conceptual model. The present research is an applied research and a descriptive survey. By using non-probability sampling, 388 customers of different malls in Shiraz City (Iran) were selected and surveyed by using questionnaires.

Findings
Results showed that appropriate material, shape and labeling of packaging have a significant positive influence on consumers’ perception of usability of product packaging, while color and size of packaging do not have an impact on consumers’ perception of a product usability. Moreover, results showed that consumers’ perception of the usability of packaging has a significant positive influence on impulse buying. Consumers’ mood and time pressure had also positive influence on impulse buying, but their moderating role in their influence of consumers’ perception on impulse buying decision was not supported.

Research limitations/implications
Although this research contributes to the product management literature, it has some limitations. For instance, the research model was tested in only one city in Iran (Shiraz). Besides, it is specific to only two product categories and concentrates mainly on consumers’ mood and time pressure as moderating factors.

Originality/value
To the best of authors’ knowledge, this study is the first research which examines the structural relationship of packaging elements on consumers’ perception of reusability of packaging and impulse buying while considering consumers’ moods and time pressure as moderator variables.
Characterizing queries in cross-device OPAC search: a large-scale log study
Authors: Wu Dan , Liang Shaobo , Bi Renmin 
Published: April 2018

Purpose
The study focused on online public access catalog (OPAC) users’ cross-device search behavior. The purpose of this paper is to understand the characteristics of cross-device OPAC searches, and to identify query reformulation (QR) patterns during device transitions.

Design/methodology/approach
The transaction log from a university library, spanning six months, was used to conduct the quantitative analysis. The query vocabulary richness, which refers to the average number of unique words each query contains in a search session, can evaluate query diversity, and contribute to the analysis of QR.

Findings
The results show that PC-PC transition is the most important pattern of device transition. The time interval of device transition was different to the time interval of transitions in web searches. Short device transitions mainly occurred in daytime, and the number of transitions that occurred in less than one minute was higher than on the web. Searches for Industry and Technology triggered the most device transitions, and the users tended to choose the same search field. In addition, the authors made a detailed analysis of the reasons for same-type device transitions and different-type device transitions. Furthermore, the authors focused on the characteristics of adjacent QR patterns. The authors not only refined the concept of cross-device to include the same-type device transition, but also summarized the characteristics of the cross-device QR patterns, which can be used to predict post-switch queries.

Originality/value
This study extends research into cross-device interaction and cross-device search to the domain of digital library research. The authors also introduced QR perspective on cross-device interaction on OPAC.
Stereolithography process optimization for tensile strength improvement of products
Authors: Kazemi Mehdi , Rahimi Abdolreza 
Published: April 2018

Purpose
Stereolithography (SLA) is a broadly used technology in the field of rapid prototyping. One of the disadvantages of SLA is poor mechanical properties of its products. To approach the mechanical properties of original part, the mechanical properties of SLA part, such as tensile strength, should be optimized. In this process, there are many parameters that affect the tensile strength of parts. However, the “layer thickness”, “fabrication orientation” and “post curing time” are the most significant ones. Hence, the purpose of this study is to investigate the influence of these parameters on tensile strength of SLA parts.

Design/methodology/approach
According to the obtained results from experiments based on the “full factorial” method, an empirical equation was developed for the tensile strength in terms of the effective parameters by using regression analysis. Considering this empirical equation, the process parameters were optimized to maximize the tensile strength by using genetic algorithm. Finally, the tensile tests of the specimens were simulated via the general-purpose finite element package of ABAQUS.

Findings
The outputs of the numerical simulations were in good agreement with experimental results. Both experimental and numerical results show that the increase of layer thickness and the decrease in post curing time increase the tensile strength. Furthermore, the tensile strength of parts produced in vertical orientation is higher than that of parts produced in horizontal orientation.

Originality/value
This is a complete study about the tensile strength of the SLA parts from experimental and analytical viewpoints.
A hybrid method for MEMS gyroscope signal error compensation
Authors: Guo Xiaoting , Sun Changku , Wang Peng , Huang Lu 
Published: April 2018

Purpose
This paper aims to propose a hybrid method based on polynomial fitting bias self-compensation, grey forward-backward linear prediction (GFBLP) and moving average filter (MAF) for error compensation in micro-electromechanical system gyroscope signal especially under motion state.

Design/methodology/approach
The error compensation can be divided into two processes: bias correction and noise reduction. A polynomial drift angle fitting algorithm is used to correct bias before denoising processing. For noise reduction, operation can be taken in two stages: detection and processing. First, sample variances are used to judge motion state. According to the detection results, algorithmic system switches between grey GFBLP and MAF to ensure fast convergence rate and small steady-state error.

Findings
Experimental results show that the proposed method can correct bias effectively for practical gyroscope signal, and can eliminate noise effectively for both practical gyroscope signal and synthetic signal, which indicates the effectiveness of the proposed method.

Originality/value
Bias correction and noise reduction are considerations. Noise contained in practical or synthetic signal can be reduced rapidly and effectively, which benefits from the new idea of combination grey GFBLP, MAF and sample variances. And most importantly, it is applicable for signal denoising under arbitrary motion state condition, which is different from other methods where the convergence performance is seldom analyzed.
Quality of Corporate Governance on Dividend Payouts: The Case of Nigeria
Authors: Odeleye Anthonia T. 
Published: April 2018

AbstractCorporate governance (CG) safeguards shareholders’ portfolios and ensures optimal returns in terms of dividend payouts (DPs) on investment. The association between CG and DPs could be significant in relation to risk exposure, operational and financing activities across firms and sectors. The relationship between CG and DPs has been well documented, however; the role of industry classification on the relationship has not been given adequate consideration in the literature. This study, therefore, examines the moderating effects of sector classification of CG on DPs in Nigeria. Agency theory underpins the model which captures the effects of CG on DPs. Governance indicators and dividend per share of 97 non‐financial listed companies in Nigeria from 1995–2012 are utilized. The system generalized method of moments estimation technique is employed in the analysis. The empirical findings indicate a positive association between CG and DP. Additionally, the analysis underlines the importance of the mode of operations (sector classification) in the relationship between CG practices and DPs in Nigeria. Based on the results of the study, it is suggested that more independent directors should be on the boards of corporate firms and the proportion of institutional shareholding also be increased to improve monitoring.
The Effects of Education on Labour Force Participation in Cameroon: A Gender Perspective
Authors: Totouom Armand , Mboutchouang Vincent De Paul , Kaffo Fotio Hervé 
Published: April 2018

AbstractThis paper seeks to understand if education can be an effective tool in achieving gender equality in labour force participation in Cameroon. For this purpose, the multinomial and binary logit models are estimated. The paper accounts for the potential endogeneity of education in the equation of labour force participation by using the instrumental variables approach. Data used are data on employment and the informal sector obtained from the National Institute of Statistics in Cameroon. The findings shed light on the negative impact of being a woman on the probability of getting a job. They also show that education and the interaction term between gender and education has a positive and statistically significant impact on the probability of working in the public and the formal private sectors. These results suggest that education yields a premium skill which offsets the negative effect of being a woman.
The Role of Property Rights in the Relationship between Capital Flows and Economic Growth in SSA: Do Natural Resources Endowment and Country Income Level Matter?
Authors: Coulibaly Sionfou Seydou , Gakpa Lewis Landry , Soumaré Issouf 
Published: April 2018

AbstractThis paper studies the role played by the quality of property rights in the linkages of international capital flows into sub‐Saharan African (SSA) economies. Using panel data of 36 SSA countries over the period 1996–2015 and the ARDL procedure with the Pooled Mean Group regression method appropriate for non‐stationary panel data estimation, we account for the joint effects of property rights quality and openness to foreign capital flows on economic growth. We uncover the existence of a property rights quality threshold beyond which property rights either amplifies the spillovers effects or attenuates the negative effect of capital flows on economic growth. For instance, it takes a level of property rights of at least 60 to have a positive long‐term impact of capital flows on economic growth in natural resource‐poor African countries. The quality of property rights matters more to obtain spillover effects of capital flows on growth in natural resource‐poor countries than in their peer natural resource‐rich countries. Finally, with regard to the countries' income levels, capital flows have significant long‐term spillovers effects on economic growth in advanced African economies than in their low‐income peers.
Theoretical and hands‐on guidance from dental hygienists promotes good oral health in elderly people living in nursing homes, a pilot study
Authors: Seleskog B , Lindqvist L , Wårdh I , Engström A , von Bültzingslöwen I 
Published: April 2018

AbstractObjectivesOral health in nursing homes for elderly is often unsatisfactory, and oral health education to nursing staff has not shown sufficient results why there is need for novel approaches. The aim of the study was to trial a new oral healthcare educational programme and to evaluate the effects on residents’ oral health. In addition, attitudes among the nursing staff in the intervention nursing home were explored.MethodsIn a controlled clinical trial, two comparable nursing homes were randomly assigned for intervention or control. Interventions included weekly theoretical and hands‐on guidance from dental hygienists on oral hygiene procedures and discussions on oral care routines. The residents’ oral health, measured by the Revised Oral Assessment Guide (ROAG), dental plaque and gingival bleeding were evaluated at baseline and after 3 months. Attitudes among the staff to oral health care were measured at the intervention nursing home.ResultsRevised Oral Assessment Guide gums and lips scores showed a tendency to decrease in the intervention group, but remained high in the control group. Plaque levels improved significantly after intervention, and a trend towards less gingival bleeding was observed. The intervention nursing staff seemed to be more aware of their own limitations concerning oral health care after intervention and valued more frequent contact with dental services to a greater extent.ConclusionsThe oral healthcare situation for elderly people today is so complex that theoretical education at the group level regarding different aspects of oral health is not sufficient. Individual hands‐on guidance by dental hygienists on a regular basis in everyday care may be a new approach.
Long‐term persistence with mirabegron in a real‐world clinical setting
Authors: Wada Naoki , Watanabe Masaki , Banjo Hiroko , Tsuchida Miyu , Hori Junichi , Tamaki Gaku , Azumi Makoto , Kita Masafumi , Kakizaki Hidehiro 
Published: April 2018

ObjectivesTo examine the long‐term persistence rate with mirabegron in a real‐world clinical setting.MethodsWe retrospectively collected the data of patients who were prescribed mirabegron. We investigated the persistence rate and the reason for the discontinuation. The analysis included patient's age, diagnosis, Overactive Bladder Symptom Score, prostatic volume, the prescription by specialists for lower urinary tract dysfunction, drug‐naïve patients, replacement of antimuscarinics or add‐on therapy to antimuscarinics.ResultsA total of 556 patients were included. Among them, 401 patients (72%) had overactive bladder and the other 155 (28%) were categorized as having other storage symptoms. During the observation period, 170 patients (42%) with overactive bladder discontinued mirabegron. The reasons for discontinuation in patients with overactive bladder included unmet expectation of treatment (45 patients, 26%), any adverse events (38 patients, 22%) or symptom improvement (37 patients, 22%). The persistence or discontinuation was not related with age, Overactive Bladder Symptom Score, prostatic volume or the prescription by specialists, while older male patients tended to continue mirabegron. The 3‐year persistence rates in female and male overactive bladder patients were 46% and 51%, respectively, and these were better than those in patients with storage symptoms without urgency. In female overactive bladder patients, the persistence rate with mirabegron used as add‐on therapy to antimuscarinics was higher than that in the drug‐naïve patients on the Kaplan–Meier curve.ConclusionsThe present study shows a relatively good long‐term persistence rate with mirabegron in overactive bladder patients, notwithstanding the retrospective study in an academic hospital. The combined treatment with antimuscarinics could result in a good persistence rate with mirabegron.
An aspirational diet for dialysis patients: Evidence and theory
Authors: Uribarri Jaime 
Published: April 2018

AbstractDialytic renal replacement therapy is now entering into its sixth decade in the United States. Despite major advances in dialysis technology, regimens and protocols, and pharmacological treatments, patients’ restricted dietary intake remains the lynchpin to their well‐being and success. Herein, we review current guidelines that limit dietary intake of nutrients and minerals in dialysis patients and explore potential ways to use them in designing a daily food intake that is not only healthy, but also easy to implement and therefore patient friendly. The main theme behind this review is attempting to emphasize that dietary restriction guidelines can be used in such a way that dialysis patients can eat things they really enjoy as long as they follow some relatively simple general rules.