bluuebunny/crossref_metadata_2025_split huggingface dataset:
Forecasting Islamic equity indices alpha
Authors: Anjum Nadia , Rajput Suresh Kumar Oad 
Published: September 2020

Purpose
This paper aims to investigate whether Islamic and conventional equity indices offer some alpha. These indices are expected to offer no alpha being value-weighted, passive and unmanaged.

Design/methodology/approach
This paper used monthly data from 1996 to 2016 of four Dow Jones (DJ) and one financial times stock exchange (FTSE) Islamic equity indices and five conventional Morgan Stanley Capital International (MSCI) equity indices. This study used a simple ordinary least square (OLS) rolling window regressions to generate the alphas and risk loadings when adjusting for prominent pricing factor models.

Findings
The findings from OLS regressions suggest that DJ Islamic indices of Japan, Europe and World generate significant alphas, whereas, MSCI conventional indices of Asia/Pacific, USA and World generate significant alpha when risk-adjusted for pricing factor models. However, in 36-month rolling window regressions, all Islamic indices generate significant alpha and factor loading. The magnitude of alpha and factor loading changes over time.

Research limitations/implications
The finding shows that the Shari’ah-compliant investment fund’s alpha must be adjusted with the respective benchmark index alpha to measure the fund manager’s skill performance quantitatively.

Originality/value
To the best of the author’s knowledge, this is the first study that investigates and compares the Islamic, as well as conventional indices for abnormal returns, which are adjusted for both Fama–French five and q-theory-based four assets pricing risk factors and as a benchmark for Shari’ah-compliant fund’s performance.
Diffusion simulation of innovative products based on Lotka-Volterra
Authors: Li Chunfa , Wang Shengkai , Tao Jianqiang 
Published: September 2020

PurposeIn view of the particularity of innovative product diffusion under the background of market competition, this paper firstly uses consumer behavior theory to logically deduce the dynamic process of consumer behavior from the perspective of experience theory.Design/methodology/approachBass and Lotka-Volterra model are used to describe and model the consumers' perceptual behavior in competitive environment. On this basis, interactive modeling technology is used to model and simulate the diffusion process of innovative products. Finally, the validity of the model is verified by comparing two scenarios with an example.FindingsThe research shows that the stronger the enterprise's competitiveness, the higher the market share of innovative products, and the positive impact on consumer perceived value, consumer perceived value can promote consumers' second purchase behavior. Positive word-of-mouth and advertising positively affect consumers' purchasing decisions; negative word-of-mouth negatively affects consumers' purchasing decisions.Originality/valueThe interaction modeling technology and AnyLogic software platform are used to simulate the complexity of consumers' experiential perception so as to build the interaction and competition mechanism among different Agent, which realizes the dynamic simulation of the diffusion process of innovative products. This study provides guidance for enterprises to formulate effective marketing strategies.
The social political role of Muslim scholars (ulamas) in the Acehnese society
Authors: Rasyidin Rasyidin 
Published: September 2020

Purpose
The purpose of this study is to critically understand and to find out the social political role of the Acehnese ulamas (Muslim scholars) in solving and coping with social issues faced by contemporary Acehnese society.

Design/methodology/approach
This study was conducted in the province of Nanggroe Aceh Darussalam, especially in the districts of Aceh Utara, Pidie, Aceh Besar, Aceh Selatan and Aceh Timur. The locations were chosen based on the consideration of the objective conditions that many ulamas are dwelling and easily be found within these areas. Besides, the locations are historically believed as the origins of the Acehnese that are so diverse. In addition, a large number of social problems frequently arose within those regions. The subjects of this research study were a number of community determined by purposive sampling technique. The instruments used for the data collection in this research were observation, in-depth interview and library study; and interpretative understanding was also used to analyze the data.

Findings
The existence of the Acehnese ulamas represents the government’s recognition to word the traditional institutional in Aceh. However, some people think that institutions are used by government to exploit ulama as the mediator between government and society. For the Acehnese ulamas, the presence of the institution could be used to consolidate their power for the benefit of the people.

Originality/value
The originality of this research can be seen from the effort to explain how contemporary Acehnese society views Theologian (ulama) in solving social problems, which were little studied by previous researchers. This question is important to examine, given the position of ulama in people’s lives since the pre-independence period and during the social revolution that had occurred in Aceh until the early 1970s was very dominant. That is, even the symbolic world of Acehnese society formed through the dominance of ulama discourse has structured how people’s responses typically must be expressed.
Engaging customers with hospitality brands in social commerce activities
Authors: Zhang Tingting , Jahromi Melissa F. , Hua Nan , Lu Lu 
Published: September 2020

Purpose
Social commerce is relatively a nascent notion that highlights the transactions of e-commerce facilitated through social media. This study aims to investigate the motivational factors driving customer brand engagement in social commerce activities within the hospitality sectors.

Design/methodology/approach
Guided by self-determination theory, this research examined both intrinsic and extrinsic motivation factors by surveying 588 hospitality customers in a structured questionnaire.

Findings
The results showed that intrinsically customers were motivated by knowledge, accomplishment and stimulation; while extrinsically customers were motivated by external and introjected regulation to affect their cognitive, affectional and behavioral engagement with hospitality brands through social commerce activities.

Originality/value
Given the emerging trends in customer brand engagement practices within the context of social commerce, this study investigates an understudied phenomenon and its relational drivers, which reveals its theoretical significance.
Elderly customers’ reactions to service failures: the role of future time perspective, wisdom and emotional intelligence
Authors: Chaouali Walid , Souiden Nizar , Ringle Christian M. 
Published: September 2020

PurposeConsidering the scant scholarly research on elderly customers’ behaviors, this study aims to investigate elderly customers’ reactions to service failure. Additionally, it takes into account customers’ emotions and abilities to cope with stressful situations and achieve successful problem-solving complaining. In particular, future time perspective, wisdom and emotional intelligence were examined to delineate their impacts on the elderly’s responses to service failures.Design/methodology/approachData were collected in a French city through mall-intercept interviewing. In total, 240 respondents participated, based on their retrospective service failure experience. PLS-SEM was used to analyze the data.FindingsBoth wisdom and emotional intelligence were found to directly and positively impact problem-solving complaining. Future time perspective, however, only had an indirect effect on problem-solving complaining through wisdom and emotional intelligence.Originality/valueTo the best of the authors’ knowledge, this is the first study to shed some light on how elderly customers constructively react to service failures. To this end, it uses future time perspective, wisdom and emotional intelligence, as well as their interrelationships, to explain elderly customers’ problem-solving complaining.
Analogical reasoning guidelines: a review and application to sustainable supply chains
Authors: Gruner Richard L. , Power Damien 
Published: September 2020

PurposeThis paper aims to review analogical reasoning work to distil and apply procedural guidelines that aid theoreticians to develop novel analogies.Design/methodology/approachThe authors reviewed 189 studies from 1980 to 2020 to identify analogical reasoning guidelines.FindingsResults revealed four procedural steps for the introduction of novel analogies: target and source domain selection; domain image mapping; relevance assessment; and proposition drafting. […] shallow lakes constitute the source domain and sustainable supply chain management represents the target domain.Research limitations/implicationsThe identified procedural guidelines can help future scholars to develop novel analogies with rigor and structure. The paper provides an agenda for new research that addresses gaps in current studies that reason by analogy.Originality/valueThis paper distils and applies analogical reasoning guidelines for the development of novel analogies, extending and complementing much existing theorizing on reasoning by analogy. Additionally, disjointed and fragmented research findings are synthesized to yield a comprehensive understanding of analogical reasoning, which can serve as a foundation for future theorizing in sustainable supply chain management and beyond.
Affective actions recognition in dyadic interactions based on generative and discriminative models
Authors: Yang Ning , Wang Zhelong , Zhao Hongyu , Li Jie , Qiu Sen 
Published: September 2020

Purpose
Dyadic interactions are significant for human life. Most body sensor networks-based research studies focus on daily actions, but few works have been done to recognize affective actions during interactions. The purpose of this paper is to analyze and recognize affective actions collected from dyadic interactions.

Design/methodology/approach
A framework that combines hidden Markov models (HMMs) and k-nearest neighbor (kNN) using Fisher kernel learning is presented in this paper. Furthermore, different features are considered according to the interaction situations (positive situation and negative situation).

Findings
Three experiments are conducted in this paper. Experimental results demonstrate that the proposed Fisher kernel learning-based framework outperforms methods using Fisher kernel-based approach, using only HMMs and kNN.

Practical implications
The research may help to facilitate nonverbal communication. Moreover, it is important to equip social robots and animated agents with affective communication abilities.

Originality/value
The presented framework may gain strengths from both generative and discriminative models. Further, different features are considered based on the interaction situations.
CSR Implementations in refugee education: the case of Syrians in Turkey
Authors: Sunata Ulaş , Özdemir Alper Cezmi 
Published: September 2020

PurposeGlobal governmentality to deal with refugee crises and related cohesion problems suggests the private sector’s activation. The purpose of this study is to theoretically understand this preference together with the global increase of corporate social responsibility (CSR) and empirically access the CSR implementation in Turkey by focussing on government policy towards refugee education for Syrian children in Turkey.Design/methodology/approachThis study offers insights into the picture of CSR implementation in Turkey deriving from an analysis of secondary data, obtained from multiple sources. This analysis is examined in the context of refugee education with the position of Turkish Government.FindingsThis study reveals an increase of the private sector’s role in refugee education at the global level by CSR implementations besides privatization of national education. It determines Turkish CSR picture is still developing, but bodies of Turkish government persisting its “soft power” are seen as CSR projects’ indispensable partner. It discusses the meaning of digital solutions in refugee education and attempts at using technological innovations to supply language training in the CSR context.Originality/valueAlthough plenty of research has been conducted on the refugee education, CSR in the countries faced with large refugee influxes has not received enough attention in the literature. This study attempts to fill the gap in literature dealing with CSR implementations in refugee education. It also contributes to the understanding of the Turkish context of CSR.
On the correct mathematical derivation and ecological application of unbiased estimators in biodiversity research
Authors: Pillai Pradeep , Gouhier Tarik C. 
Published: September 2020

Abstract

Clark et al. (2019) sought to extend the Loreau–Hector partitioning scheme by showing how to estimate selection and complementarity effects from an incomplete sample of species. We demonstrate that their approach suffers from serious conceptual and mathematical errors. Instead of finding unbiased estimators for a finite population, they inserted ad hoc correction factors into unbiased parameter estimators for an infinite population without any mathematical justification in order to force the sample estimators of an infinite population to converge to the true finite population parameter values as sample size n approached population size N. In doing so, they confused the unbiasedness of a sample estimator with its equivalence to the true population parameter value when .

Additionally, we show that their estimators of complementarity, selection and the net biodiversity effect are incorrect. We then derive the correct unbiased estimators but caution that, contrary to what Clark et al. claim, these quantities will not approximate the corresponding population parameters without significant repeated random sampling, something that would likely be unfeasible in most if not all biodiversity experiments.

Clark et al. also state that their method can be used to compare distinct experiments characterized by different species and diversity levels, or extrapolate from biodiversity experiments to natural systems. This is incorrect because relative yields are not a property of individual species like monoculture yields but an emergent and specific feature of an experimental community. As such, two experimental communities, even when overlapping significantly in species, are incommensurable for the purpose of predicting relative yields. In other words, different experimental communities are not equivalent to different samples taken from the same statistical population.

Finally, Clark et al. incorrectly claim that both the original Loreau–Hector partitioning scheme and their extension work for any baseline despite the fact that recent research has shown that a nonlinear relationship between monoculture density and ecosystem functioning will likely inflate the net biodiversity effect in plant systems, and will always lead to spurious measurements of complementarity and selection.
Outcomes of heart transplantation in patients bridged with Impella 5.0: Comparison with native chest transplanted patients without preoperative mechanical circulatory support
Authors: Monteagudo‐Vela María , Panoulas Vasileios , García‐Saez Diana , de Robertis Fabio , Stock Ulrich , Simon Andre Rudiger 
Published: September 2020

ABSTRACTThe Impella (Abiomed, Danvers, MA, USA) has become an important adjunct treatment modality in bridging patients with end‐stage heart failure to recovery or orthotopic heart transplantation (HTx). We compared the outcome of patients directly bridged to HTx with the Impella 5.0 versus patients without mechanical circulatory support (MCS). Patients with no previous sternotomy or MCS, who were transplanted between September 2014 and March 2019 were included in this retrospective analysis. Impella 5.0 was implanted using surgical access and transesophageal echocardiography guidance. Forty‐two out of 155 transplanted patients fulfilled the insertion criteria. Eight (19%) were bridged with Impella 5.0 to HTx. Recipient and donor baseline characteristics were comparable in both groups. There were no significant differences in survival between the groups at 30‐day (94% no MCS vs. 87.5% Impella group, P = .47) or 6 months (94% vs. 87.5%, P = .51). Patients on Impella 5.0 showed a significant recovery of hemodynamic parameters and end‐organ function. Average duration of support to HTx was 16 ± 17 days. Impella 5.0, when used in suitable patients in a timely fashion can be a good strategy for bridging patients to HTx. The axillary approach allows for early extubation and mobilization. Outcomes of patients bridged to HTx with Impella 5.0 in acute cardiogenic shock are comparable to those of patients with no MCS.
Adolescent Family Conflict as a Predictor of Relationship Quality in Emerging Adulthood
Authors: Heinze Justin E. , Hsieh Hsing‐Fang , Aiyer Sophie M. , Buu Anne , Zimmerman Marc A. 
Published: September 2020

ObjectiveThis research examines the influence of adolescent family conflict on relationship quality in early and later emerging adulthood, while considering the interpersonal resources that protect youth against the intergenerational transmission of negative relationship quality.BackgroundFamily conflict during adolescence can impede the development of skills needed to maintain future productive interpersonal relationships. Positive peer and romantic relationships in emerging adulthood may buffer the negative ramifications of earlier family conflict.MethodA longitudinal design was used to follow a sample of 850 at‐risk adolescents (50% female, 50% male) who were predominantly (80%) African American. Binary logistic and ordinary least‐squares regressions were run to test hypotheses.ResultsAdolescents who reported higher levels of family conflict in adolescence were less likely to report closeness or support from both their parents and spouses or partners during both early and late emerging adulthood. These adolescents also reported higher levels of perceived daily stressors. Positive relationships in emerging adulthood did not affect the relationship between family conflict and later relationship outcomes.ConclusionFamily conflict in adolescence is associated with unhealthy relationship patterns in emerging adulthood.ImplicationsAdolescents from high‐conflict homes are unlikely to learn adaptive relationship strategies through natural maturation or exposure to positive interpersonal relationships in emerging adulthood. Direct intervention (e.g., conflict resolution skills) in emerging adulthood should be explored.
For the Future of the Children? The Onward Migration of Italian Bangladeshis in Europe
Authors: Morad Mohammad , Sacchetto Devi 
Published: September 2020

AbstractIn this study, we analyse the reasons for the onward migration of Bangladeshis in Italy to the UK after they obtain Italian citizenship. The findings of 51 in‐depth interviews and participant observation with Bangladeshi migrants with Italian citizenship in three cities of north‐eastern Italy and two cities of the UK indicate that Italian Bangladeshis move to the UK, not only for economic reasons, but also, to better manage the cultural and social reproduction of their family, particularly the second generation. This is indicative of the centrality of colonial legacy from a cultural and economic point of view. Since the UK has the biggest Bangladeshi diaspora, there are more opportunities for reproducing Bengali traditions and religious upbringing for their children. Additionally, Italian Bangladeshis also mentioned that providing British education to the next generation can increase their social status in their home country.
Survey and electronic health record‐based medication use agreement in children with cystic fibrosis: A retrospective cross‐sectional study
Authors: Banks Jordan T. , Rosenfeld Margaret , Mancl Lloyd , Chi Donald L. 
Published: September 2020

AbstractBackgroundMedication use is important to collect accurately in medically complex patients in both clinical and research settings.AimWe assessed patient‐level agreement for medication use between self‐reported survey and electronic health record (EHR) for children with cystic fibrosis (CF).MethodsOur retrospective cross‐sectional study focused on children with CF ages 6‐20 years from Seattle Children's Hospital in Washington state, USA (N = 85). A self‐ or parent‐reported survey included questions on current use of specific medications and antibiotic use in the past 2 months. We compared survey data with data abstracted from the individual's EHR and derived Cohen's Kappa statistics to estimate the level of agreement between the two methods.ResultsSelf‐reported medication use was generally higher in the survey than in the EHR. The level of agreement ranged from slight for probiotics (74.1% agreement; 95% confidence interval [CI]: 64.6%‐83.6%; kappa: 0.07), pancreatic enzymes (80% agreement; 95% CI: 71.3%‐88.7%; kappa: 0.12), and vitamin D (55.3% agreement; 95% CI: 44.5%‐66.1%; kappa: 0.20) to moderate for chronic azithromycin (80% agreement; 95% CI: 7.13%‐88.7%; kappa: 0.50), proton pump inhibitors (76.5% agreement; 95% CI: 67.3%‐85.7%; kappa: 0.46), and oral antibiotics (70.6% agreement; 95% CI: 60.7%‐80.5%; kappa: 0.42).ConclusionThere is considerable heterogeneity in level of agreement in medication use between self‐reported survey and EHR data for children with CF. Standardized approaches are needed to improve the accuracy of medication data collected in clinical practice and research.
Why We Should Avoid Artists Who Cause Harm: Support as Enabling Harm
Authors: Elicker Bradley 
Published: September 2020

AbstractThis article examines our ethical responsibility toward artists engaged in harmful behaviors. Specifically, I demonstrate when and why we are morally obligated to withdraw our public and financial support from Artists Who Cause Harm such as Louis C.K., Terry Richardson, and Ryan Adams. Using a moral distinction presented by Philippa Foot and others, I identify this support as enabling harm when the wealth and influence that we support removes typical barriers that protect victims from harm and interposes barriers that prevent victims from avoiding harm. I proceed to demonstrate that our personal support is morally significant, and we have a moral responsibility to make contributions to collective action when the cost is low or the degree of belief that others will contribute is high. Here we have both a strong belief that others will withdraw support and a relatively low cost to ourselves to do so. I acknowledge that enabling current harms is only a sufficient condition to withdrawing support from an artist and should not minimize other reasons for avoiding certain artists and their works. However, when we do believe that our support enables an artist engaged in harmful behaviors, we have an obligation to withdraw that support.
Enhancing peripheral nerve regeneration with neurotrophic factors and bioengineered scaffolds: A basic science and clinical perspective
Authors: Lien Brian V. , Brown Nolan J. , Ransom Seth C. , Lehrich Brandon M. , Shahrestani Shane , Tafreshi Ali R. , Ransom Ryan C. , Sahyouni Ronald 
Published: September 2020

AbstractDespite the peripheral nervous systems (PNS) capacity to regenerate, functional restoration is highly variable following peripheral nerve injury (PNI), oftentimes leading to persistent functional deficits. In the preclinical arena, advances in the therapeutic use of exogenous neurotrophic factors and synthetic neural scaffold technology hold promise in augmenting endogenous PNS regeneration following PNI. Clinical trials utilizing neurotrophic factors for other indications (eg, peripheral neuropathy) may provide insight into their role in PNI. Here we provide an updated review of progress made toward enhancing regeneration after PNI with a focus on neurotrophic factors and bioengineered scaffolds.