bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimating student ability and problem difficulty using item response theory (IRT) and TrueSkill
Authors: Lee Youngjin 
Published: February 2019

Purpose
The purpose of this paper is to investigate an efficient means of estimating the ability of students solving problems in the computer-based learning environment.

Design/methodology/approach
Item response theory (IRT) and TrueSkill were applied to simulated and real problem solving data to estimate the ability of students solving homework problems in the massive open online course (MOOC). Based on the estimated ability, data mining models predicting whether students can correctly solve homework and quiz problems in the MOOC were developed. The predictive power of IRT- and TrueSkill-based data mining models was compared in terms of Area Under the receiver operating characteristic Curve.

Findings
The correlation between students’ ability estimated from IRT and TrueSkill was strong. In addition, IRT- and TrueSkill-based data mining models showed a comparable predictive power when the data included a large number of students. While IRT failed to estimate students’ ability and could not predict their problem solving performance when the data included a small number of students, TrueSkill did not experience such problems.

Originality/value
Estimating students’ ability is critical to determine the most appropriate time for providing instructional scaffolding in the computer-based learning environment. The findings of this study suggest that TrueSkill can be an efficient means for estimating the ability of students solving problems in the computer-based learning environment regardless of the number of students.
Ownership, tax and intercorporate loans in China
Authors: Huang Wei 
Published: February 2019

Purpose
This paper aims to investigate the interconnections between corporate ownership, tax system and controlling shareholder tunneling through intercorporate loans in an emerging market setting.

Design/methodology/approach
China’s Enterprises Income Tax reform in 2008 abolished its previous multiple-tiers tax system under which foreign direct investment (FDI) firms enjoyed preferential tax rates than domestic firms by introducing a new unified-rate tax system. Using difference-in-differences tests, the author analyzes changes of controlling shareholders tunneling through intercorporate loans among Chinese listed companies around this reform.

Findings
The author documents significant reductions of intercorporate loans after the reform. More importantly, the author reveals that foreign-invested firms experienced larger reductions of intercorporate loans than domestic firms. The author also shows that state association matters for domestic firms’ response to the reform. In addition, the author documents positive stock market reaction to the tax reform announcement for firms that exhibited higher level of tunneling prior to the reform, indicating market expectation of reduced principal-principal conflict post-reform.

Research limitations/implications
The findings suggest effective corporate governance system is warranted to constrain intercorporate fund transfers in emerging markets where tax incentives are used for attracting inward foreign direct investments. Institutional reforms in emerging markets aimed at removing market frictions can alleviate the problem of controlling shareholder expropriations of minority interests or tunneling.

Originality/value
This is a pioneering study that reveals the role of tax as a public governance mechanism in weak minority investor protection environment.
Context, gender and entrepreneurial intentions
Authors: van Ewijk Anne Rienke , Belghiti-Mahut Sophia 
Published: February 2019

PurposeThis paper aims to explore how gender differences in entrepreneurial intentions (EI) change when entrepreneurship education (EE) is added to the force field of macro-social stimulants and inhibitors of female EI in the particular context of the United Arab Emirates (UAE).Design/methodology/approachThe study is based on a pre-post survey with entrepreneurship students and students with a similar profile enrolled in other courses (N = 246) at three universities. The three main hypotheses are evaluated through independent-samplest-tests and a hierarchical multiple regression analysis.FindingsThe findings indicate a negative effect of gender stereotypes on female students’ EI in the UAE, regardless of the course type. Furthermore, entrepreneurship courses appear to be more successful than other courses in raising the EI of students in general and female students in particular. Finally, adding EE to the equation of macro-social inhibitors and stimulants of female EI in the UAE seems to tip the balance in favor of the influence of economic affluence, rapid modernization and proactive governmental policies to stimulate the entrepreneurial spirit among female residents. That is, at the end of the entrepreneurship courses, there was no significant gender difference in EI anymore and female students are significantly more likely to experience a positive change in EI than male students.Research limitations/implicationsThe literature review identifies the need for future studies to evaluate the impact of variability in sampling and methods among previous studies on gender effects in EE. Building on the findings, future studies could identify which aspects of EE are pivotal for customizing female students’ specific local interests and needs. The study is limited in the sense that the data set did not enable tests of moderators at the course level (which mostly requires more qualitative data) and individual level. In addition, the sample is not representative for all female residents in the UAE at large.Practical implicationsThis study might stimulate (UAE) policymakers to increase the scope and quality of EE. In turn, university administrators are recommended to find ways to compensate the self-selection effect (overcome likely opt-out by female students) when entrepreneurship courses are elective.Originality/valueThis exploration was inspired by the strong emphasis that Julie Weeks put on the gendered impact of macro-level factors in business enabling environments (Weeks, 2011). The empirical analysis builds on a conceptual framework that integrates Krueger’s model of EI, theory on gender stereotypes in entrepreneurship and previous literature on the role of EE (reinforcing or mitigating stereotypes). The study is executed in the relatively unexplored context of the UAE, which offers strong macro-social inhibitors for ánd stimulants of female entrepreneurship.
Agenda-setting on traditional vs social media
Authors: Chen Liang , Shi Jingyuan , Guo Yu , Wang Pianpian , Li Yiwei 
Published: February 2019

PurposeThe purpose of this paper is to explore and compare haze-related content between traditional and social media in China by applying agenda-setting theory and the extended parallel process model (EPPM). Specifically, this paper examines the correlation between the two forms of media in terms of the ranking of the attributes of haze (i.e. the EPPM components) and the interrelationships among the attributes.Design/methodology/approachContent analysis and semantic network analysis were employed to address the research aims.FindingsThe results revealed that more than half of the total messages on both types of media reflected the EPPM components, either threat or efficacy information. However, the imbalance between the threat and efficacy information was more prominent in the haze-related content presented in thePeople’s Dailythan it was on Weibo. In addition, the results from a Spearman’s rank-order correlation and a quadratic assignment procedure (QAP) indicated that there was no significant correlation between thePeople’s Dailyand Weibo in terms of the rankings of the attributes of haze (i.e. the EPPM components) or the interrelationships among the attributes.Originality/valueThis study is the first to apply a theoretical approach to examine and compare the nature of haze-related messages on traditional and social media.
Consumer psychological motivations to customer brand engagement: a case of brand community
Authors: Kumar Jitender , Nayak Jogendra Kumar 
Published: February 2019

PurposeThis paper aims to explore the psychological motivations behind customers’ engagement with the brands and further investigate the effect of brand engagement on brand attachment and brand loyalty.Design/methodology/approachThe theoretical model is tested with the data collected from 282 brand community members during offline brand community events, and structural equation modeling technique is used for statistical analysis.FindingsThe results indicate that brand psychological ownership and value-congruity act as important psychological motivations for customers to engage with the brands. A sense of brand attachment mediates the relationship between brand engagement and brand loyalty.Research limitations/implicationsCurrent study was conducted on a single brand community. Future research testing and validating the proposed model for multiple brands across different product categories is suggested for the generalization of current study results. The identification and validation of psychological drivers of engagement can have major implications on the ongoing research on customer engagement concept.Practical implicationsAn effectively instilled sense of psychological ownership and value similarity notion in customers can help managers in engaging customers and capitalize on their repurchases and recommendations along with their attachment to the brands.Originality/valueThe study is unique in terms of the brand engagement model depicting the psychological antecedents to engagement with the brands and identifying the mediating role of brand attachment between brand engagement and behavioral loyalty.
Pushing for partnership: physician engagement and resistance in primary care renewal
Authors: Kreindler Sara A. , Struthers Ashley , Metge Colleen J. , Charette Catherine , Harlos Karen , Beaudin Paul , Bapuji Sunita B. , Botting Ingrid , Francois Jose 
Published: February 2019

Purpose
Healthcare policymakers and managers struggle to engage private physicians, who tend to view themselves as independent of the system, in new models of primary care. The purpose of this paper is to examine this issue through a social identity lens.

Design/methodology/approach
Through in-depth interviews with 33 decision-makers and 31 fee-for-service family physicians, supplemented by document review and participant observation, the authors studied a Canadian province’s early efforts to engage physicians in primary care renewal initiatives.

Findings
Recognizing that the existing physician–system relationship was generally distant, decision-makers invested effort in relationship-building. However, decision-makers’ rhetoric, as well as the design of their flagship initiative, evinced an attempt to proceed directly from interpersonal relationship-building to the establishment of formal intergroup partnership, with no intervening phase of supporting physicians’ group identity and empowering them to assume equal partnership. The invitation to partnership did not resonate with most physicians: many viewed it as an inauthentic offer from an out-group (“bureaucrats”) with discordant values; others interpreted partnership as a mere transactional exchange. Such perceptions posed barriers to physician participation in renewal activities.

Practical implications
The pursuit of a premature degree of intergroup closeness can be counterproductive, heightening physician resistance.

Originality/value
This study revealed that even a relatively subtle misalignment between a particular social identity management strategy and its intergroup context can have highly problematic ramifications. Findings advance the literature on social identity management and may facilitate the development of more effective engagement strategies.
Green product attributes and green purchase behavior
Authors: Sharma Aasha , Foropon Cyril 
Published: February 2019

PurposeNowadays, understanding green consumers has become very critical given its implications for marketers to understand and communicate green purchase patterns on the one hand, and to design and strategize both product offerings and customer services on the other hand. The purpose of this paper is to examine the interaction effect of product attributes on the degree of environment concern, the intention of green purchase and a series of green purchase proposed patterns. This paper is built on the theory of planned behavior, and expands it by replacing subjective norms and perceived behavioral control with respectively environmental knowledge and perceived consumer effectiveness, and also by extending purchase behavior to three types of purchase patterns, namely, unconditional purchase, conditional purchase and accidental purchase.Design/methodology/approachThe interaction effect is analyzed through ANOVA, whereas path analysis is used to understand path strengths of proposed model, which is assessed through standardized regression weights and significance throughp-value.FindingsOverall, this study reveals the importance of product attributes in the decision-making process of green purchasers.Research limitations/implicationsThis study deals with environmental behavior in general, and further research with a focus on specific behaviors is needed in this field investigating the rise of green consumption.Practical implicationsProduct attributes play a role in the decision making of consumers willing to buy green products, and both communication and promotion of green products should integrate product attributes accordingly.Originality/valueWorldwide, consumers are buying more and more green products, and this study leads to a better understanding of the decision-making process of consumers’ green products.
Impact of carbonation on neurogenic dysphagia and an exploration of the clinical predictors of a response to carbonation
Authors: Turkington Leisa , Ward Elizabeth C. , Farrell Anna , Porter Linda , Wall Laurelie R. 
Published: February 2019

AbstractBackgroundThe need for effective compensatory strategies in neurogenic dysphagia management has led to the exploration of sensory enhancement strategies (SES), such as carbonated liquids. Despite some positive findings, evidence related to the efficacy of carbonation as an SES is limited.AimsTo determine if carbonated thin liquids reduced dysphagia symptoms and to explore clinical factors associated with response to carbonation.Methods & ProceduresParticipants (n = 29) with neurogenic dysphagia demonstrating deep penetration or aspiration on thin liquids during videofluoroscopic swallow studies (VFSS) completed a set protocol: discrete sips of non‐carbonated thin fluids (DS‐NC) followed by discrete sips of carbonated thin fluids (DS‐C) and then consecutive sips of carbonated fluids (CS‐C). The impact of carbonation was identified through changes to swallow physiology (videofluoroscopy dysphagia scale—VDS) and depth of airway compromise (penetration‐aspiration scale—PAS). Demographic variables including genetic taste type, cranial nerve function and key results from the VDS were examined for association with carbonation response using both individual parameter analysis and exploratory cluster analysis.Outcomes & ResultsSignificant (p < 0.05) improvements in PAS scores were noted in DS‐C and CS‐C conditions compared with DS‐NC. Total VDS score was also significantly (p < 0.05) reduced (i.e., improved function) in the DS‐NC condition. Individual variability in response to carbonation was noted and no clear clinical factors associated with carbonation response in the current set of parameters were identified.Conclusion & ImplicationsFindings support that carbonated thin fluids sometimes result in neurogenic dysphagia symptom reduction. However, identifying the clinical characteristics of patients who may benefit from trials of carbonation needs further investigation.
Impacts of a shared book‐reading intervention for Italian‐speaking children with developmental language disorder
Authors: Lavelli Manuela , Barachetti Chiara , Majorano Marinella , Florit Elena , Brotto Cristina , Miottello Piergiorgio 
Published: February 2019

AbstractBackgroundThe regular practice of shared book reading (SBR) at home may play a key role in fostering the linguistic development of children with developmental language disorder (DLD). However, more evidence is needed of the benefits of home‐based SBR interventions on the parents’ conversational strategies and on the communicative and linguistic production of children with DLD.AimsTo examine the impacts of a parent‐based SBR intervention on the parent's use of conversational strategies, and on the engagement, conversational participation and linguistic production of Italian‐speaking children with DLD. The mothers trained in the use of SBR strategies were expected to increase their use of these strategies. The children were expected to show gains in their level of engagement and conversational participation during SBR; in turn, moderate increments of the indices of language production were expected.Methods & ProceduresThirty‐two preschool children with DLD participated in the study; all were receiving speech language therapy. Using a non‐randomized pre‐post‐test control trial, 20 mother–child dyads implemented an 8‐week SBR programme (the SBR intervention group), while 12 dyads acted as a comparison group. Based on the ‘dialogic reading’ method, eight verbal and non‐verbal SBR strategies were employed during individual and small‐group parent training sessions. Speech–language therapists were involved in the individual parent training sessions to provide suggestions focused on the specific characteristics of each mother–child dyad. Measures of parents’ intervention strategies, children's engagement, conversational participation and oral language were included.Outcomes & ResultsAt post‐test, mothers in the SBR intervention group used three of the eight SBR strategies—Shared Book Handling, Captivating Talking, and Utterances with a familiar topic—significantly more than the comparison group. Children whose mothers implemented the intervention showed significant gains in terms of time spent in engagement and amount of verbal production during shared reading. No effects were found for the children's communicative initiatives and answers, or for indices of language complexity and diversity.Conclusions & ImplicationsThe present parent‐based SBR intervention for Italian‐speaking preschoolers with DLD showed effects, albeit modest, on both maternal and child communicative behaviours. The results suggest that extralinguistic strategies may be implemented successfully by parents and may be effective in enhancing children's engagement and language production in the short term. Further investigations are needed that provide a longer intervention period and examine the joint impact of therapist‐ and parent‐based intervention for children with DLD.
The relationship between pre‐pregnancy dietary patterns adherence and risk of gestational diabetes mellitus in Iran: A case–control study
Authors: Asadi Maryam , Shahzeidi Maedeh , Nadjarzadeh Azadeh , Hashemi Yusefabad Hadiseh , Mansoori Anahita 
Published: February 2019

AimThe present study aimed to investigate major dietary patterns and their association with risk of gestational diabetes mellitus (GDM) in Yazd city located in Iran.MethodsThis case–control designed study was conducted at six healthcare centres. Two hundred and seventy‐eight pregnant women who referred for GDM screening participated. Dietary assessment was carried out by using a 67‐item validated food frequency questionnaire to evaluate dietary history of participants during the last year. Principal component analysis was used to identify major food patterns. Multivariable logistic regression model was employed to identify the association between dietary patterns and risk of GDM.ResultsTwo major dietary patterns were detected. The Western dietary pattern was associated with higher intakes of sugar‐sweetened beverages, refined grain products, fast foods, salty snacks, sweets and biscuit, mayonnaise and saturated oils, while the prudent dietary pattern was associated with higher intakes of fruits, low‐fat dairy, potato, egg, fish, poultry, nuts, organs meat and red meat. Furthermore, prudent dietary pattern was negatively associated with GDM risk (OR = 0.88, 95% CI: 0.44–0.99). However, there was no significant association between adherence of the Western dietary pattern and risk of GDM.ConclusionsPre‐pregnancy adherence of the prudent dietary pattern was significantly associated with reduced risk of GDM.
Phenolics and Antioxidant Capacity of Pitted Olive Pomace Affected by Three Drying Technologies
Authors: Sinrod Amanda J.G. , Avena‐Bustillos Roberto J. , Olson Donald A. , Crawford Lauren M. , Wang Selina C. , McHugh Tara H. 
Published: February 2019

AbstractThis study investigated drum‐drying's ability to produce dried food‐grade olive pomace as a potential food ingredient that is more nutritionally dense than its freeze‐dried and hot‐air dried counterparts. The pits and skin were removed from fresh olive pomace, and the remaining pulp was dried to <5% moisture through freeze‐drying, hot‐air drying, and drum‐drying at two rotational speeds. The drying treatments had no significant (P ≤ 0.05) effect on the olive pomace's fat or dietary fiber contents but did increase the L*, a*, and b* color parameter values. Although all the drying treatments significantly (P ≤ 0.05) decreased the fresh olive pomace's antioxidant capacity, drum‐drying preserved the olive pomace's antioxidant capacity significantly (P ≤ 0.05) better than freeze‐drying and hot‐air drying. The drum‐dried samples had concentrations of caffeic acid and verbascoside that were significantly (P ≤ 0.05) higher than the other dried pomace samples and were not significantly (P ≤ 0.05) different from the fresh pomace. The drum‐dried olive pomace contained concentrations of hydroxytyrosol, tyrosol, vanillic acid, luteolin‐7‐glucoside, and rutin that were not significantly (P ≤ 0.05) different from the dried sample with the highest concentration of each respective phenolic compound. No oleuropein was found in the fresh or dried olive pomace. The results of this study show that drum‐drying is an energy efficient method for converting olive pomace into a stable food‐grade supplement that preserves its high phenolic, antioxidant, and dietary fiber contents to potentially benefit human health when incorporated into food or supplement products.Practical ApplicationPitting and drying converts the olive pomace into a stable form that is free of physical hazards and could be incorporated into food products to increase their nutritional quality through olive pomaces’ high fiber, antioxidant, and phenolic contents. Drum‐drying allows food‐grade olive pomace to retain higher amounts of beneficial soluble phenolics and a higher antioxidant capacity than conventional drying methods, thus furthering olive pomace's potential valorization as a food ingredient.