bluuebunny/crossref_metadata_2025_split huggingface dataset:
An optimized queue management system to improve patient flow in the absence of appointment system
Authors: Safdar Komal Aqeel , Emrouznejad Ali , Dey Prasanta Kumar 
Published: November 2020

PurposeThe aim of this research study is to develop a queue assessment model to evaluate the inflow of walk-in outpatients in a busy public hospital of an emerging economy, in the absence of appointment systems, and construct a dynamic framework dedicated towards the practical implementation of the proposed model, for continuous monitoring of the queue system.Design/methodology/approachThe current study utilizes data envelopment analysis (DEA) to develop a combined queuing–DEA model as applied to evaluate the wait times of patients, within different stages of the outpatients' department at the Combined Military Hospital (CMH) in Lahore, Pakistan, over a period of seven weeks (23rd April to 28th May 2014). The number of doctors/personnel and consultation time were considered as outputs, where consultation time was the non-discretionary output. The two inputs were wait time and length of queue. Additionally, VBA programming in Excel has been utilized to develop the dynamic framework for continuous queue monitoring.FindingsThe inadequate availability of personnel was observed as the critical issue for long wait times, along with overcrowding and variable arrival pattern of walk-in patients. The DEA model displayed the “required” number of personnel, corresponding to different wait times, indicating queue build-up.Originality/valueThe current study develops a queue evaluation model for a busy outpatients' department in a public hospital, where “all” patients are walk-in and no appointment systems. This model provides vital information in the form of “required” number of personnel which allows the administrators to control the queue pre-emptively minimizing wait times, with optimal yet dynamic staff allocation. Additionally, the dynamic framework specifically targets practical implementation in resource-poor public hospitals of emerging economies for continuous queue monitoring.
Analysing repeat blood donation behavior via big data
Authors: Chen Xu , Liu Lei , Guo Xinyu 
Published: November 2020

PurposeAlthough blood banks have recently started to recruit blood donors through social media platforms, including WeChat, to increase recruitment effectiveness, few researchers have studied their effects on blood donation behavior. The aim of this study is to examine the influence of using official WeChat accounts on repeat blood donation behavior.Design/methodology/approachThis paper used the backstage operation data of official WeChat accounts and blood supply chain management system data from the blood bank for the study to analyze the changes in repeat blood donation behavior. First, to analyze the changes in the average frequency of blood donation per year, average volume of single blood donation and blood eligible rate of repeat blood donors before and after following the official WeChat accounts by difference-in-differences model combined with propensity score matching (PSM-DID). Second, we examined the impact of official WeChat accounts on the proportion of repeat blood donors through survival analysis.FindingsThe results show that following WeChat accounts increases the average frequency of blood donation and blood eligible rate of repeat blood donors by 14.36% and 1.19%, respectively, and have no significant effect on the average volume of single blood donation. Further, WeChat accounts have a more significant impact on the average frequency of blood donations per year for workers, farmers, medical staff and groups with education levels of junior high school. In addition, official WeChat accounts can effectively increase the proportion of repeat donors.Originality/valueThe results provide a quantitative basis for the influence of official WeChat accounts on repeat blood donation behaviors. On the one hand, it is of great significance to guide the publicity and recruitment of unpaid blood banks. On the other hand, it provides an evidence for the promotion of official WeChat accounts.
Enablers to supply chain performance on the basis of digitization technologies
Authors: Gupta Himanshu , Kumar Sarangdhar , Kusi-Sarpong Simonov , Jabbour Charbel Jose Chiappetta , Agyemang Martin 
Published: November 2020

PurposeThe aim of this study is to identify and prioritize a list of key digitization enablers that can improve supply chain management (SCM). SCM is an important driver for organization's competitive advantage. The fierce competition in the market has forced companies to look the past conventional decision-making process, which is based on intuition and previous experience. The swift evolution of information technologies (ITs) and digitization tools has changed the scenario for many industries, including those involved in SCM.Design/methodology/approachThe Best Worst Method (BWM) has been applied to evaluate, rank and prioritize the key digitization and IT enablers beneficial for the improvement of SC performance. The study also used additive value function to rank the organizations on their SC performance with respect to digitization enablers.FindingsThe total of 25 key enablers have been identified and ranked. The results revealed that “big data/data science skills”, “tracking and localization of products” and “appropriate and feasibility study for aiding the selection and adoption of big data technologies and techniques ” are the top three digitization and IT enablers that organizations need to focus much in order to improve their SC performance. The study also ranked the SC performance of the organizations based on digitization enablers.Practical implicationsThe findings of this study will help the organizations to focus on certain digitization technologies in order to improve their SC performance. This study also provides an original framework for organizations to rank the key digitization enablers according to enablers relevant in their context and also to compare their performance with their counterparts.Originality/valueThis study seems to be the first of its kind in which 25 digitization enablers categorized in four main categories are ranked using a multi-criteria decision-making (MCDM) tool. This study is also first of its kind in ranking the organizations in their SC performance based on weights/ranks of digitization enablers.
Information cultures and strategies for coping with information overload: case of Estonian higher education institutions
Authors: Lauri Liia , Virkus Sirje , Heidmets Mati 
Published: November 2020

PurposeThis paper focuses on the links between information culture and the perception of the information overload on the example of higher education institutions in Estonia. The aim of this study is to understand how different types of information culture affect coping with information overload.Design/methodology/approachTwo focus-group interviews with 14 participants and 17 semi-structured interviews with representatives of four HEIs were conducted. First, the questions on the values, norms and assumptions as well as information related practices were discussed to assess the dominant components of the information culture. Second, the perception of information overload was explored. Further, the strategies for coping with information overload were examined. Constant comparative analysis was used to analyse the interview data.FindingsThe results of the study suggest that the construct of information culture is valuable in understanding information environments and their relation to the perception of information overload. The participants representing the open information culture prefer informal information sharing and are more vulnerable to perceive information overload than the participants representing the integrated information culture. Organisational information management is the key to effective coping with information overload.Originality/valueThe current study sheds light on the perception of information overload in connection with information culture.
How despotic leadership jeopardizes employees' performance: the roles of quality of work life and work withdrawal
Authors: Nauman Shazia , Zheng Connie , Basit Ameer A. 
Published: November 2020

PurposeThis study contributes to the leadership literature by examining how and when despotic leadership jeopardizes employees' performance. Specifically, we examine whether employees' job performance could be harmed by despotic supervision through employees' work withdrawal behaviour. Moreover, we investigate whether the quality of work-life (QWL) helps in toning down the harmful effects of despotic supervision on work withdrawal.Design/methodology/approachWe used a multi-wave research design with data collected from 195 employees and their supervisors working in Pakistan's manufacturing sector. At time 1, we measured the independent variable (i.e. despotic leadership) and moderator (QWL), whereas, at time-2, the mediator (work withdrawal) was tapped by the same respondent with a time interval of three weeks between them. At time 3, the outcome (supervisor-rated job performance) was assessed directly by the supervisors.FindingsThe results support the mediating effect between despotic leadership and employees' performance through an enhanced level of work withdrawal behaviour. The effect of despotic leadership on job performance via work withdrawal behaviour was found to be weaker among employees with a higher level of QWL.Practical implicationsFor individuals, QWL serves as an enhancement of personal resources to deal with despotic leaders at the workplace; for organizations, our study results alert managers and leaders at the workplace to address employees' need for QWL as this positive resource may discourage work withdrawal behaviour and stimulate employees to perform well in their jobs despite facing despotic supervision.Originality/valueThis study contributes to the leadership literature by introducing work withdrawal as an underlying mechanism to explain the despotic leadership – job performance relationship. Further, we examined how the harmful effects of despotic leadership can be toned down through the moderating variable of QWL thus having practical implications for both employers and employees.
Health promotion in care organizations as material-discursive practices
Authors: Segercrantz Beata , Tuori Annamari , Niemistö Charlotta 
Published: November 2020

PurposeDrawing on a performative ontology, this article extends the literature on health promotion in organizations by exploring how health promotion is performed in care work. The focus of the study is on health promotion in a context of illness and/or decline, which form the core of the studied organizational activities. The paper addresses the following question: how do care workers working in elderly care and mental health care organizations accomplish health promotion in the context of illness and/or decline?Design/methodology/approachThe article develops a performative approach and analyses material-discursive practices in health promoting care work. The empirical material includes 36 semi-structured interviews with care workers, observations and organizational documents.FindingsTwo central material-discursive health promoting practices in care work are identified: confirming that celebrates service users as residents and the organizations as a home, and balancing at the limits of health promotion. The practices of balancing make the limitations of health promotion discernible and involve reconciling health promotion with that which does not neatly fit into it (illness, unachievable care aims, the institution and certain organizing). In sum, the study shows how health promotion can structure processes in care homes where illness and decline often are particularly palpable.Originality/valueThe paper explores health promotion in a context rarely explored in organization studies. Previous organization studies have to some extent explored health promotion and care work, but typically separately. Further, the few studies that have adopted a performative approach to material-discursive practices in the context of care work have typically primarily focused on IT. We extend previous organization studies literature by producing new insights: (1) from an important organizational context of health promotion and (2) of under-researched entanglements of human and non-human actors in care work providing a performative theory of reconciling organizational tensions.
Examining the mediating role of work engagement on the relationship between workplace mindfulness and organizational justice and its association with well-being
Authors: Sharma Praveen Kumar , Kumra Rajeev 
Published: November 2020

PurposeEmployee well-being is increasingly relevant and crucial for organizational success. As work engagement and employee well-being affect employee performance, this area is the focus of increasing attention both from scholars and industry professionals. The main objective of the present research study is to investigate the mediating role of work engagement on the relationship between mindfulness at work, organizational justice and employee well-being.Design/methodology/approachThe study was conducted on information technology (IT) employees in India, and 331 complete responses were collected for the data analysis. The cross-sectional data were collected through purposive sampling. Structural equation modeling (SEM) was applied to evaluate the proposed research hypotheses.FindingsThe findings support the convergent and discriminant validities of mindfulness, organizational justice, work engagement and employee well-being. The results indicate that mindfulness and organizational justice have an indirect relationship with employee well-being. In addition, the study demonstrates that work engagement significantly mediates the relationship between mindfulness and employee well-being as well as between organizational justice and employee well-being.Practical implicationsThe findings will help organizations and human resources (HR) departments to understand the importance of work engagement and employee well-being in the workplace.Originality/valueThe mediating effect of work engagement between the workplace mindfulness–organizational justice relationship on employee well-being is addressed by drawing on conservation of resources (COR) and job demand–resource (JD–R) theories. Prior research has exclusively studied the relationship of employee well-being with either mindfulness or organizational justice. This research provides empirical insights regarding the fact that both mindfulness and organizational justice simultaneously have a relationship with employee well-being.
Simvastatin ointment in the treatment of seven childhood diffuse plane xanthomas
Authors: Yu Xia , Yang Lan , Gu Yan , Zhang Wenqing , Zhang Zhen , Guo Yifeng , Yao Zhirong 
Published: November 2020

AbstractDiffuse plane xanthomas (DPX) is a rare, chronic, metabolic skin disease which can seriously affect the appearance of the patients and result in psychological problems. Existing treatments are seriously limited. Our objective was to assess the efficacy of and tolerance to simvastatin ointment for the treatment of skin lesions in seven DPX patients. In this study, patients were treated twice daily on the right side of the lesions for 10 months with the 1% or 5% simvastatin ointment. Meanwhile, the left body was untreated as a contralateral controlled side. Efficacy was assessed via the change of rash and was further confirmed by histological study. For all seven participants, both the 1% and 5% simvastatin ointments were effective. The histological change in DPX showed significant decrease of foam cells in skin lesions. The immunohistochemical staining of CD68, macrophage scavenger receptor type 1, oxidized low‐density lipoprotein receptor 1 and Oil Red O became obviously reduced after treatment. The test medicines were safe with only some skin‐related side‐effects. This is the first research reported on simvastatin ointment treatment in DPX. Our results are the first to suggest that simvastatin ointment is effective in improving skin lesions of DPX clinically and histopathologically.
Nonlinear drought plasticity reveals intraspecific diversity in a dominant grass species
Authors: Hoffman Ava M. , Smith Melinda D. 
Published: November 2020

Abstract

Intraspecific diversity of dominant species in native plant communities can modulate ecosystem function under both optimal and stressful conditions. Yet, few genotype by environment interaction studies quantify differences in the shape of plasticity functions or phenotypic breakpoints across genotypes in natural populations.

Using three genotypes with a history of drought selection, we performed a greenhouse study on the dominant tallgrass prairie species Andropogon gerardii. We investigated phenotypic plasticity and recovery differences among genotypes across a water availability gradient, measuring growth‐related, instantaneous and cumulative phenotypes. To further understand genotype by environment effects, we quantified plasticity functions and breakpoints among genotypes.

Like other studies, we found strong evidence for phenotypic and plasticity differences among genotypes. However, we also found nonlinear plasticity functions and breakpoints were common across phenotypes, especially relative growth rates, biomass allocation and root architecture. Drought selected genotypes were also more likely to flower during recovery, but all genotypes were resilient to drought across treatments.

We demonstrate that plasticity functions may help explain intraspecific diversity, patterns of selection and nonlinear community responses to more variable rainfall within an experimental population. In particular, plasticity functions can help disentangle drought/variability tolerance versus acquisitive strategies. A better understanding of intraspecific diversity in this grass species will provide more mechanistic insight into its ability to buffer ecosystem changes and provide resiliency in the tallgrass prairie under future droughts.

A free Plain Language Summary can be found within the Supporting Information of this article.
Lianas explore the forest canopy more effectively than trees under drier conditions
Authors: Medina‐Vega José A. , Bongers Frans , Schnitzer Stefan A. , Sterck Frank J. 
Published: November 2020

Abstract

Lianas rely on trees for support and access to high‐light positions in the forest canopy, but the implications for how lianas explore the canopy compared to trees remain understudied. We present an in situ forest canopy study to test the hypotheses that: (1) lianas favour leaf display over stem investment compared to trees and (2) lianas have greater potential to colonize non‐shaded, high‐light areas effectively than trees.

We compared branches of 16 liana species with those of 16 sympatric tree species in the canopy of two lowland tropical forests with contrasting rainfall regimes in Panama using 40–50 m tall canopy cranes. One forest was relatively dry and seasonal in rainfall and associated solar radiation. The other forest was relatively wet and had a weaker seasonality.

We observed that lianas were more efficient in leaf display over stem investment than trees, particularly in the forest with lower precipitation and stronger seasonality. Specifically, lianas had a lower LMA (leaf mass per unit leaf area), stronger apical dominance, higher stem slenderness and fewer leaf layers than trees. In the forest with higher precipitation and weaker seasonality, lianas also had stronger apical control and fewer leaf layers than trees, but both lianas and trees were relatively similar in LMA and stem slenderness.

Our study shows that lianas more effectively explore the canopy than trees under drier conditions, but much less so under wetter conditions. We argue that lianas display a functional strategy that allows them to better intercept light than the tree species in forests with low precipitation and strong seasonality, while they are constrained to display such strategy at high precipitation – light‐limited – sites.

A free Plain Language Summary can be found within the Supporting Information of this article.
Eigenrays in 3D heterogeneous anisotropic media, Part II: Dynamics
Authors: Ravve Igor , Koren Zvi 
Published: November 2020

ABSTRACTThis paper is the second in a sequel of two papers and dedicated to the computation of paraxial rays and dynamic characteristics along the stationary rays obtained in the first paper. We start by formulating the linear, second‐order, Jacobi dynamic ray tracing equation. We then apply a similar finite‐element solver, as used for the kinematic ray tracing, to compute the dynamic characteristics between the source and any point along the ray. The dynamic characteristics in our study include the relative geometric spreading and the phase correction due to caustics (i.e. the amplitude and the phase of the asymptotic form of the Green's function for waves propagating in 3D heterogeneous general anisotropic elastic media). The basic solution of the Jacobi equation is a shift vector of a paraxial ray in the plane normal to the ray direction at each point along the central ray. A general paraxial ray is defined by a linear combination of up to four basic vector solutions, each corresponds to specific initial conditions related to the ray coordinates at the source. We define the four basic solutions with two pairs of initial condition sets: point–source and plane‐wave. For the proposed point–source ray coordinates and initial conditions, we derive the ray Jacobian and relate it to the relative geometric spreading for general anisotropy. Finally, we introduce a new dynamic parameter, similar to the endpoint complexity factor, presented in the first paper, used to define the measure of complexity of the propagated wave/ray phenomena. The new weighted propagation complexity accounts for the normalized relative geometric spreading not only at the receiver point, but along the whole stationary ray path. We propose a criterion based on this parameter as a qualifying factor associated with the given ray solution. To demonstrate the implementation of the proposed method, we use several isotropic and anisotropic benchmark models. For all the examples, we first compute the stationary ray paths, and then compute the geometric spreading and analyse these trajectories for possible caustics. Our primary aim is to emphasize the advantages, transparency and simplicity of the proposed approach.