bluuebunny/crossref_metadata_2025_split huggingface dataset:
Withholding effort in sharing knowledge in online space: differential effects of task characteristics
Authors: Wu Dongming 
Published: September 2020

Purpose
Knowledge withholding is an important but under-studied topic, which refers to the phenomenon that individuals give less than full effort to contributing knowledge. This study aims to investigate the differential effects of task characteristics on individuals’ knowledge withholding behavior in online space, this study develops and empirically verifies a theoretical model that covers the five core task characteristics in job characteristics model (autonomy, identity, feedback, skill variety and significance), knowledge sharing self-inefficacy and withholding effort in sharing knowledge.

Design/methodology/approach
Using an online survey method, this study collected empirical data from 351 general internet users from 30 provincial administrative units in China. The data were analyzed using the structural equation modeling technique of partial least squares.

Findings
The analysis results indicate that autonomy negatively affects, while identity, skill variety and significance positively affect users’ knowledge withholding behavior in online space through the mediation of knowledge sharing self-inefficacy, and that three task characteristics (autonomy, identity and feedback) strengthen the relationship between knowledge sharing self-inefficacy and knowledge withholding.

Practical implications
This study provides valuable insights for reducing knowledge withholding behavior in online space. Operationally, different levels of task characteristics such as autonomy, identity and feedback can be set to prevent users from perceiving themselves as inefficacious, and to weaken the behavioral expression of knowledge sharing self-inefficacy.

Originality/value
This study provides a comprehensive understanding of the differential effects of task characteristics on knowledge withholding in online space, and improves the cognition of the boundaries of withholding effort in sharing knowledge in online space.
Imagery makes social media captivating! Aesthetic value in a consumer-as-value-maximizer framework
Authors: Aljukhadar Muhammad , Bériault Poirier Amélie , Senecal Sylvain 
Published: September 2020

Purpose
Social media bring about the imagery of people, places and products. Showing particular success in attracting women and millennials, these media (e.g. Instagram, Snapchat and Pinterest) are built around imagery consumption. This paper follows a qualitative theory building approach to extend the theory of consumption values and develop a framework based on the values social media deliver to consumers that explain their use outcomes.

Design/methodology/approach
The framework was analytically developed based on a review of the literature. In contrast to frameworks such as stimulus-organism-response (S-O-R), the framework proposes that people consume social media to maximize relevant values, namely, the aesthetic, social and learning value. Then, a study based on semi-structured interviews is performed to elaborate on the values and their undertakings.

Findings
The paper defines the consumption’s aesthetic value and underscores it as a focal driver of social media use and a key concept in social commerce. Data analysis suggests that aesthetic value engenders such responses as consumer’s inspiration, infinity sensation and habitual entertainment. Additional drivers of social media users are social and learning values. The social value engenders self-expression and social privacy, whereas the learning value engenders resourcefulness and parallel shopping.

Originality/value
This paper stipulates that people consume (i.e. use) social media to maximize relevant values, which, in turn, result in two groups of responses (inner and outer responses). The framework indicates that the relevant values mediate the relation between a stimulus (e.g. social media use) and response (e.g. entertainment, inspiration and behavioral intent). It highlights the centrality of aesthetic value in digital marketing and social commerce environments. The framework, thus, contrary to S-O-R, views the consumer as a maximizer of values rather than (a) processor of emotional and cognitive rejoinders.
Corporate innovation in a world of common ownership
Authors: Chiao Cheng-Huei , Qiu Bin , Wang Bin 
Published: September 2020

PurposeThe purpose of this paper is to examine the impact of common ownership on corporate innovation, including innovation input, innovation output and postgrant patents.Design/methodology/approachThis paper uses the ordinary least square model and the difference-in-differences technique to evaluate the effect of institutional interlocking shareholdings on the life cycle of corporate innovation.FindingsThe results show that common ownership impedes innovation measured by patent grants and citations through reduced R&D expenditures. However, common ownership protects postgrant patents by lowering the likelihood that a co-owned firm gets involved in patent litigation and by accelerating the settlement of lawsuits between co-owned firms.Practical implicationsFrom a regulatory perspective, common ownership in younger firms that rely heavily on R&D investment to produce innovation outputs is detrimental and needs to be regulated. However, common ownership in mature firms, which hold a big pool of patents or rely on acquiring patents to compete, is of less concern because of the protective role detected.Originality/valueThe paper provides a first comprehensive look into how same-industry common ownership affects innovation input, innovation output and postgrant patents. The research also reconciles the anticompetitive effect and the coordinative effect of common ownership documented in the literature.
Racial and ethnic disparities in youth perceptions of police in the community and school: considering the effects of multilevel factors
Authors: Zhang Gary , Nakamoto Jonathan , Cerna Rebeca 
Published: September 2020

PurposeRecent publicized incidents involving police and youth, particularly minorities, may undermine attitudes toward police. This research examines the effect of race/ethnicity on youth attitudes toward police in two contexts.Design/methodology/approachThis study utilizes survey data from 17,000 youth in California aggregated with data on poverty and crime. Hierarchical linear modeling (HLM) is used to examine the effects of individual and structural factors on perceptions of the police in the community and in school.FindingsRace/ethnicity is related to perceptions of police in both contexts even after accounting for structural factors, with Blacks and Hispanics having less positive perceptions than Whites and Asians. Differences in perceptions between racial/ethnic groups were larger for police in the community than school police. Structural factors were associated with perceptions of police in the community but not at school.Originality/valueThis study differs from much of the previous literature examining race and attitudes toward police, which has largely focused on adults. The current study examines youth attitudes toward the police in two separate contexts and considers the influence of structural factors.
Scale development and validation of shared mental models of information and communication technology (ICT SMM)
Authors: Müller Rebecca , Antoni Conny H. 
Published: September 2020

Purpose
Virtual teams are on the rise and many companies are implementing them to compete for the most talented experts. However, the use of information and communication technology (ICT), on which virtual teams depend, often ends in communication chaos. Research has shown that shared mental models (SMM), which are knowledge structures on team level, enhance team communication. In teams, which use ICTs, shared mental models of ICTs (ICT SMM) seem to be important. However, few studies that investigated ICT SMM have used different measurements that restrict their generalization. The purpose of this study is to define ICT SMM as well as develop and validate an ICT SMM scale.

Design/methodology/approach
This study used a cross-sectional questionnaire in two different samples (N1 = 117 students and N2 = 165 employees).

Findings
The results of item and factor analyses indicated that ICT SMM contain at least two facets, ICT functionalities and task-specific ICT use and are distinct from teamwork, taskwork and temporal SMM. The ICT SMM scale reached good validity and reliability. On an individual level, ICT SMM were positively associated with perceived team performance and coordination and negatively with ineffective communication, workload and frustration.

Research limitations/implications
Future research using teams as sample to validate the ICT SMM scale seems to be promising.

Originality/value
To the best of authors’ knowledge, this is the first study that developed and validated a rating scale to measure SMM of ICT in different samples.
Relative accuracy of social and medical determinants of suicide in electronic health records
Authors: Alemi Farrokh , Avramovic Sanja , Renshaw Keith D. , Kanchi Rania , Schwartz Mark 
Published: September 2020

AbstractObjectiveThis paper compares the accuracy of predicting suicide from Social Determinants of Health (SDoH) or history of illness.Population Studied5 313 965 Veterans who at least had two primary care visits between 2008 and 2016.Study DesignThe dependent variable was suicide or intentional self‐injury. The independent variables were 10 495 International Classification of Disease (ICD) Version 9 codes, age, and gender. The ICD codes included 40 V‐codes used for measuring SDoH, such as family disruption, family history of substance abuse, lack of education, legal impediments, social isolation, unemployment, and homelessness. The sample was randomly divided into training (90 percent) and validation (10 percent) sets. Area under the receiver operating characteristic (AROC) was used to measure accuracy of predictions in the validation set.Principal FindingsSeparate analyses were done for inpatient and outpatient codes; the results were similar. In the hospitalized group, the mean age was 67.2 years, and 92.1 percent were male. The mean number of medical diagnostic codes during the study period was 37; and 12.9 percent had at least one SDoH V‐code. At least one episode of suicide or intentional self‐injury occurred in 1.89 percent of cases. SDoH V‐codes, on average, elevated the risk of suicide or intentional self‐injury by 24‐fold (ranging from 4‐ to 86‐fold). An index of 40 SDoH codes predicted suicide or intentional self‐injury with an AROC of 0.64. An index of 10 445 medical diagnoses, without SDoH V‐codes, had AROC of 0.77. The combined SDoH and medical diagnoses codes also had AROC of 0.77.ConclusionIn predicting suicide or intentional self‐harm, SDoH V‐codes add negligible information beyond what is already available in medical diagnosis codes.Implications for PracticePolicies that affect SDoH (eg, housing policies, resilience training) may not have an impact on suicide rates, if they do not change the underlying medical causes of SDoH.
Hyperferritinemia in patients with COVID‐19: An opportunity for iron chelation?
Authors: Vlahakos Vassilios D. , Marathias Katerina P. , Arkadopoulos Nikolaos , Vlahakos Demetrios V. 
Published: September 2020

AbstractStudies from China on COVID‐19 revealed that nonsurvivors had cytokine storm with high IL‐6 and hyperferritinemia. Iron liberated from necrotic cells may catalyze free radical production and amplify lipid peroxidation causing membrane dysfunction and multiorgan failure. Consequently, iron chelators have been successfully utilized in various experimental and clinical models of cytokine storm and multiorgan damage, such as in ischemia‐reperfusion injury, sepsis, and infections. Since viral replication may be influenced by iron accumulation, iron chelation has been proven beneficial in a variety of viral infections, such as HIV‐1, hepatitis B virus, Mengovirus, Marburg hemorrhagic fever, Enterovirus 71, and West Nile virus. In this commentary, we elaborate on the idea of considering iron chelation as a therapeutic modality in patients with severe COVID‐19 infection. For critically ill patients in the ICU, intravenous deferoxamine would provide sufficient and rapid iron chelation to ameliorate cytokine storm, whereas in less severe cases an oral chelator could prevent the development of excessive inflammatory response.
Reutilisation of hydrothermal vent complexes for focused fluid flow on continental margins (Modgunn Arch, Norwegian Sea)
Authors: Roelofse Chantelle , Alves Tiago M. , Omosanya Kamal’deen O. 
Published: September 2020

AbstractConventional three‐dimensional (3D) seismic data reveal abundant igneous activity on the Modgunn Arch, mid‐Norwegian margin. Magmatic sills and associated hydrothermal vent complexes located at various depths prove the repeated utilisation of Paleocene‐Eocene magmatic conduits. In total, 125 sills and 85 hydrothermal vent complexes were identified and mapped, with vent complexes ranging in diameter from 300 to 3,100 m and sills from 0.5 to 50 km. Three examples of stacked vent complexes are presented, revealing large eruptions of hydrothermal fluids vertically through the same conduit, from sills to the palaeo‐sea floor. The vent complexes are found throughout Paleocene strata (66–56 Ma), whilst at least ten (10) vents were active during the Eocene. This study emphasises the importance of characterising ancient magmatic structures, as hydrothermal conduits and vent structures were, and may still be, reutilised as preferential fluid flow pathways to shallower strata. A minimum of four phases of hydrothermal vent complex formation are inferred. Cretaceous faults are both bypassed and used for magma and fluid flow. The reutilisation of magmatic structures here described may bring to light previously overlooked plays and renew interest in exploring magma‐rich continental margins.
The relationship between the Family Empowerment Scale and Gross Motor Function Measure‐66 in Young Children with cerebral palsy
Authors: Pierce Samuel R. , Skorup Julie , Paremski Athylia C. , Prosser Laura A. 
Published: September 2020

AbstractBackgroundCerebral palsy (CP) is the most common cause of motor disability in children. A concept to consider in order to meet the needs of children with CP and their families is family empowerment. Family empowerment can be defined as the process by which families acquire the skills, knowledge and resources to allow them to gain control and improve the quality of their lives. The relationship between gross motor function and family empowerment may be important because children with CP vary so widely in their ability to perform motor skills, which may affect their family's levels of empowerment. The purpose of this research was to investigate the relationship between the Family Empowerment Scale (FES) and Gross Motor Function Measure‐66 (GMFM‐66) in children with CP who were under 3 years of age.MethodsForty‐one children with a mean age of 23.8 months participated in this study. The FES was completed by the participants' parents or regular caregivers and includes a total score and subscales of empowerment in the family, in service situations and in community/political environments. The GMFM‐66 was administered by a physical therapist and consists of a total score of gross motor function (GMFM‐66) and subscores for Dimension B (sitting), Dimension C (crawling and kneeling), Dimension D (standing) and Dimension E (walking, running and jumping).ResultsStatistically significant positive correlations were found between the FES total and GMFM (total score and Dimensions B–E) with coefficients varying from 0.43–0.62. Significant relationships were also found between most subscales of the FES and the GMFM‐66.ConclusionsThis study provides evidence of a relationship between family empowerment and gross motor function in young children with CP and suggests that caregivers of children with higher gross motor function report higher levels of self‐efficacy.
Promoting family well‐being and social cohesion: The networking and relational approach of an innovative welfare service in the Italian context
Authors: Balenzano Caterina 
Published: September 2020

AbstractThis evaluation study examined a Family Services Centre (FSC) operating in a socio‐culturally deprived suburban area of Southern Italy to explore how promoting innovative practices to meet increasingly complex family needs. The research used a case study approach and a mixed‐methods design: the service's documents underwent a documentary analysis; users' trends and satisfaction levels were examined using quantitative data; service's identity and changes in the perceptions of professionals were analysed by qualitative techniques. Overall, the data highlighted the fact that the FSC can be considered an effective prevention instrument: its family support practices, oriented to the ASPIRE model, ensure accessibility, empowerment and a strengths‐based approach. Thanks to its strengthened mediator role, client participation and caseworkers' ideas, it represents an environment conducive to the development of innovation in social practices, influencing local social policies regarding child and family welfare. Despite its changes, the FSC still promotes family well‐being and social cohesion within the community with its innovative multilevel and multimethod approach. Considerations and lessons learned by this case study could stimulate decision makers and social practitioners to reflect on innovative models to meet families' needs.
Differences between Australian adolescents with eating disorder symptoms who are in treatment or not in treatment for an eating disorder
Authors: Trompeter Nora , Bussey Kay , Forbes Miriam K. , Mond Jonathan , Hay Phillipa , Basten Christopher , Goldstein Mandy , Thornton Christopher , Heruc Gabriella , Byrne Susan , Griffiths Scott , Lonergan Alexandra , Touyz Stephen , Mitchison Deborah 
Published: September 2020

AbstractBackgroundMental health problems frequently occur during adolescence, however, few adolescents seek treatment for these problems, especially for eating disorders. The current study aimed to quantify how adolescents in a clinical sample (ie, those receiving treatment for an eating disorder), differ in terms of psychological factors (eating disorder symptoms and psychological distress), compared to adolescents with eating pathology in a community sample (ie, those not receiving treatment).MethodData were used from a community sample of adolescents with eating disorder pathology who have not sought treatment (n = 1011) and a clinical sample of adolescents presenting at eating disorder services for treatment (n = 153). Participants reported demographics and completed questionnaires assessing weight/shape concerns, disordered eating and psychological distress.ResultsAdolescents with a lower BMI, more frequent purging and higher weight/shape concerns were more common in the clinical sample, while those engaging in more frequent driven exercise were less common in the clinical sample. The samples did not differ in severity of psychological distress.ConclusionsThe findings highlight the need for increasing mental health literacy about the role of BMI and driven exercise in eating disorder symptom presentation to increase early detection of these disorders among adolescents.
Melatonin for Acute Treatment of Migraine in Children and Adolescents: A Pilot Randomized Trial
Authors: Gelfand Amy A. , Ross Alexandra C. , Irwin Samantha L. , Greene Kaitlin A. , Qubty William F. , Allen I. Elaine 
Published: September 2020

ObjectiveTo determine what dose of melatonin is most effective for treating migraine acutely in children and adolescents.BackgroundAcute migraine medications may not work for all patients and may cause side effects. Melatonin is effective for migraine prevention in adults and has been used acutely for procedural pain in children. Our goal was to determine whether a “high” or “low” dose of melatonin is more effective for treating migraine acutely in youth.MethodsIn this pilot, randomized, open‐label, single‐center, dose‐finding trial, children and adolescents aged 4‐17 years with episodic migraine were randomized to “high‐dose” or “low‐dose” dose melatonin (<40 kg: 4 mg vs. 1 mg; ≥40 kg: 8 mg vs. 2 mg). The primary outcome measure was change in mean pain score between time 0 and 2 hours. Secondary outcomes included 2‐hour pain‐relief and pain‐freedom rates.ResultsEighty‐four participants (n = 42 per group) were enrolled in this study. Mean (SD) participant age was 11.8 (3.5) years and 55% (46/84) were female. Mean (SD) headache days/month was 5.6 (3.8). Sixty‐six (79%) participants provided outcome data and were included in the analyses,n = 24 in the high‐dose group andn = 22 in the low‐dose group. The drop‐out rate was 43% (18/42) in the high‐dose group vs. 48% (20/42) in the low‐dose group. Mean (SD) change in pain intensity at 2 hours was −2.7 (2.1) cm in the high‐dose group vs. −2.3 (2.1) cm in the low‐dose group (p = .581), a difference of 0.4 cm (95% CI: −1.17 to 1.92). Two‐hour pain‐freedom rate was 41% (7/17) vs. 27% (4/15) in the high‐dose vs. low‐dose groups (p = .415), and 2‐hour pain‐relief rate was 94% (16/17) vs. 80% (12/15), (p = .482). There were no serious adverse events. Napping occurred in the majority (67% (14/21) high dose vs. 47% (9/19) low dose). Higher mg/kg dose of melatonin and napping were each independently associated with greater headache benefit.ConclusionsAs an acute treatment for pediatric migraine, both low and high doses of melatonin were associated with pain reduction; however, study drop‐out was high. Higher dose and napping after treatment predicted greater benefit.
What do the changing patterns of comorbidity burden in people living with HIV mean for long‐term management? Perspectives from European HIV cohorts
Authors: d'Arminio Monforte A , Bonnet F , Bucher HC , Pourcher V , Pantazis N , Pelchen‐Matthews A , Touloumi G , Wolf E 
Published: September 2020

AbstractUndoubtedly, comorbidities complicate long‐term HIV management and have significant cost implications for healthcare systems. A better understanding of these comorbidities and underlying causes would allow for a more considered and proactive approach to the long‐term management of HIV. This review examines cross‐sectional analyses of six European cohort studies (Athens Multicenter AIDS Cohort Study, Aquitaine Cohort, EuroSIDA Cohort study, French claims EGB, German InGef Cohort and the Italian Cohort of Individuals, Naïve for Antiretrovirals), which included individuals with HIV followed over a certain period of time. Based on these cohorts, we examined how comorbidities have changed over time; how they compromise HIV management; and how much of a financial burden they impart. These data also provided a framework to explore the major issues of ageing and HIV and the practical implications of managing such issues in real‐life practice.