bluuebunny/crossref_metadata_2025_split huggingface dataset:
A systematic review of conceptual models and methodologies in research on school principals in Iran
Authors: Hosseingholizadeh Rezvan , Sharif Atefeh , Taghizadeh Kerman Nafiseh 
Published: June 2021

PurposeThis study aims to present a review of topics, conceptual models and methodologies in research on Iranian school principals over the past four decades.Design/methodology/approachThe study adopted a descriptive quantitative form of a systematic review of research to analyze topics, conceptual models and methodologies employed in 565 studies published by Iranian scholars in the national and international databases.FindingsThe content analysis of the studies revealed the increasing interest of the Iranian scholars in the two topical foci, namely, the school leadership models and principal profile, with a focus on the direct-effects (Model B) and the antecedent-effects (Model A). The evidence also suggests the disinclination of the researchers to study leadership concerning student learning outcomes. The most frequently used school leadership model in the Iranian schools has been transformational leadership, while the distributive/collaborative and instructional leadership studies were few. The scholars have mostly relied on a survey-based quantitative research approach, using correlation analysis techniques.Practical implicationsThe findings suggest that despite the increasing global acceptance of school leadership, its implementation in practice is inevitably shaped by the institutional policies and cultural values of different societies.Social implicationsThe findings of this study strengthen the supposition that the differences in school leadership across societies are influenced by various cultural and contextual factors.Originality/valueThis paper is the first systematic review of the empirical studies that present insight into topics, conceptual models and methodologies in research on school principals in Iran.
Resilient companies in the time of Covid-19 pandemic: a case study approach
Authors: Acciarini Chiara , Boccardelli Paolo , Vitale Mario 
Published: June 2021

PurposeThe Covid-19 pandemic represents an extraordinary and unpredictable event influencing the whole economy and society. Using a case study approach, the authors explored how big companies operating in Italy were able to respond to the crisis to ensure business continuity. Therefore, the authors discussed different business disruptions caused by Covid-19; in addition, they developed an integrated policy framework in which they proposed specific strategic responses for increasing the level of organizational resilience. The aim of the paper is to discuss and reflect on the ability of specific companies to increase their level of organizational resilience when unexpected events happen.Design/methodology/approachThe authors conducted semi-structured interviews with target CEOs of four major companies operating in Italy in different industries. Especially, the authors focused on multiutilities, media and communications, investment banking and mobile telecommunications. The interviews were based on questions dealing with Covid-19 implications and strategic responses to navigate this complex scenario.FindingsBased on the CEOs' contributions, the authors presented short-term actions and long-term strategies planned and implemented by each Italian company. In particular, the authors emphasized similarities and dissimilarities in terms of strategic responses and future business development.Originality/valueThe analysis of practical cases was helpful for increasing their knowledge on organizational resilience and for providing the managerial community with a policy framework to navigate unexpected events like the Covid-19 pandemic.
The misunderstanding of halal tourism in Bandung city - Indonesia: Muslim tourist arrivals are increasing in the obscurity of concepts
Authors: Wahyudin Uud , Randa Agrian Ratu , El Karimah Kismiyati , Santoso Imelia Martinovita 
Published: June 2021

Purpose
This paper aims to find out what causes differences in understanding the concept of halal tourism between the government and stakeholders, which results in the slow development of halal tourism and the emergence of doubts for stakeholders who want to be part of halal tourism in Bandung.

Design/methodology/approach
This study used a qualitative research method, and then the results presented the Fishbone Diagram (Cause and Effect) of halal tourism concept in the City of Bandung. A case study approach is in accordance with the Bandung City branding as the halal tourism destination in Indonesia. The informants are the halal tourism stakeholders, consumers, the government and the tourism community.

Findings
Even though the level of Muslim tourist's arrival in Bandung has always been increasing, what was proclaimed by the government is unclear related to the halal tourism concept. The ambiguity of the halal tourism concept spread in Bandung impacts the absence of clear standardization of supporting facilities and accommodation and the emergence of anxiety and mistrust of stakeholders in applying the halal concept into their tourism business in Bandung.

Research limitations/implications
This study was only conducted in Bandung City, Indonesia; hence, it lacks generality. Accordingly, future studies can expand to several potential halal tourism cities in Indonesia and halal tourists outside Bandung as informants.

Originality/value
To the best of the authors’ knowledge, this is the first practical paper that provides a detailed and comprehensive description of the different concepts of halal tourism in the city of Bandung.
Servant leadership and employee voice: a moderated mediation
Authors: Song Yang , Tian Qi-tao , Kwan Ho Kwong 
Published: June 2021

PurposeThe purpose of this paper is to examine the effects of servant leadership on employees' promotive voice behavior and prohibitive voice behavior by focusing on the mediating role of job engagement and the moderating role of proactive personality.Design/methodology/approachTime-lagged data were collected using a field survey research design. The participants included 216 employees and 23 supervisors in two commercial banks in China.FindingsPerceived servant leadership was positively related to employees' promotive and prohibitive voice behavior, and these relationships were mediated by enhanced job engagement. In addition, employees' proactive personality amplified the relationship between perceived servant leadership and job engagement, and the mediating effect of job engagement on the relationship between perceived servant leadership and voice behavior.Research limitations/implicationsThis study enhances understanding of the mechanisms underlying the servant leadership – voice model by identifying the mediating role of job engagement. The results also demonstrate the moderating role of proactive personality in enhancing the effects of servant leadership. However, the survey design was not longitudinal, which limits the study's ability to confirm causality.Practical implicationsThe findings reveal that servant leadership, employees' job engagement, and proactive personality can facilitate employees' promotive and prohibitive voice behavior.Originality/valueThis study addresses the unexplored mediating mechanism of the relationship between servant leadership and voice behavior, and offers new directions for servant leadership and voice research.
Ordered weighted logarithmic averaging distance-based pattern recognition for the recommendation of traditional Chinese medicine against COVID-19 under a complex environment
Authors: Fu Yuhe , Zhang Chonghui , Chen Yujuan , Gu Fengjuan , Baležentis Tomas , Streimikiene Dalia 
Published: June 2021

PurposeThe proposed DHHFLOWLAD is used to design a recommendation system, which aims to provide the most appropriate treatment to the patient under a double hierarchy hesitant fuzzy linguistic environment.Design/methodology/approachBased on the ordered weighted distance measure and logarithmic aggregation, we first propose a double hierarchy hesitant fuzzy linguistic ordered weighted logarithmic averaging distance (DHHFLOWLAD) measure in this paper.FindingsA case study is presented to illustrate the practicability and efficiency of the proposed approach. The results show that the recommendation system can prioritize TCM treatment plans effectively. Moreover, it can cope with pattern recognition problems efficiently under uncertain information environments.Originality/valueAn expert system is proposed to combat COVID-19 that is an emerging infectious disease causing disruptions globally. Traditional Chinese medicine (TCM) has been proved to relieve symptoms, improve the cure rate, and reduce the death rate in clinical cases of COVID-19.
An exploratory study of heuristics for anticipating prices
Authors: Ehrig Timo , Katsikopoulos Konstantinos V. , Jost Jürgen , Gigerenzer Gerd 
Published: June 2021

PurposeThis research explores how investment and central bankers cope with strategic uncertainty when they anticipate prices. The uncertainty originates from others' decisions and their consequences, and cannot be meaningfully reduced to risk. The authors postulate that, in order to cope with this type of uncertainty, bankers use simple rules, also called heuristics. This study aims to identify such heuristics and the psychological processes that underlie them.Design/methodology/approachThe authors interviewed 22 managers of teams tasked to anticipate prices, in two leading investment and central banks. The primary data came from in-depth, semi-structured interviews lasting 30–60 min, supplemented by our observations during the on-site visits, emails and phone calls when preparing the interviews, and reports published by the banks. Data were coded and heuristics were induced over multiple rounds by multiple researchers.FindingsBankers (1) construct simple game representations of markets, (2) make inferences to gauge opponents, (3) become alert when they see too much agreement and (4) communicate coherent narratives. Heuristics (1)–(3) are employed when the pace of decision-making is fast, whereas (4) is used for longer time scales. In sum, bankers exhibit reciprocal bounded rationality, wherein interaction partners are mutually aware of and adapted to the fundamental uncertainty of the task and their limited resources.Originality/valueHeuristics for anticipating prices have not been studied empirically outside the lab. The findings may help integrate conceptualizations of heuristics in the simple-rules and fast-and-frugal-heuristics research programs and improve market efficiency.
Analyzing Zoombombing as a new communication tool of cyberhate in the COVID-19 era
Authors: Lee Claire Seungeun 
Published: June 2021

PurposeThe aims of this paper are to explore the rise of cyberhate on the Zoom video conferencing platform at the outset of the coronavirus disease 2019 (COVID-19) pandemic and to examine victimized cases of Zoombombing where it was used as a cyberhate tool. The COVID-19 pandemic has not only impacted our lives and modes of working and studying, but also created new environments for cybercriminals to engage in cybercrime, cyberhate and hacking by exploiting tools such as Zoom. This new phenomenon called “Zoombombing” was first reported in mid-March 2020, when the social distancing and stay-at-home policies in the United States were nationally introduced.Design/methodology/approachThis research conducted a news media content analysis on cases of Zoombombing. To conduct this analysis empirically, a dataset with all of the reported Zoombombing cases from March to April 2020 was created. Google Trends, news media and tweets were used to analyze Zoombombing as a form of cyberhate, particularly digital racism.FindingsThe results reveal prevalent Zoom-mediated racism toward Asian Americans, African Americans and Jewish Americans. This study understands Zoombombing from a sociopolitical/cultural perspective through news reporting of victimized cases and explores various ways that Zoombombing shapes, mediates, transforms and escalates racism.Originality/valueThis study is one of the very first studies to analyze Zoombombing in a way that builds upon an emerging body of literature on cyberhate. This paper considers Zoom as a space where curious young people, cybercriminals, extremists and hackers impose their ideologies and beliefs upon newly established online learning and working environments and engage in a struggle for identity recognition in the midst of increasingly accessible vulnerable software and cyberspace.
Property rights and reputation in the dairy agro-industrial system
Authors: Sudré Carolina Andrea Gómez Winkler , Souza José Paulo de , Bouroullec Melise Dantas Machado 
Published: June 2021

Purpose
The purpose of this study is to understand the effect of governance structure alignment, property rights protection, and reputation in generating efficiency in dairy agro-industrial system in Paraná, Brazil, and Midi-Pyrénées, France.

Design/methodology/approach
Descriptive qualitative research, comprising semi-structured interviews with producers, processors and key agents of the dairy agrindustrial system in Brazil and France, in 2016/2017.

Findings
As a result, it was identified that measurement generates information about transacted dimensions and when it is shared can generate affect reputation in transactions that leads to system improvement. It was also observed that, in the dairy agro-industrial system, reputation acquired does not reduce all the measurement costs, as the product requires measurement in each all collection, regardless of the reputation created.

Research limitations/implications
As a limitation of the study, there is a difference in the moments when the interviews were done. In 2016, in France, the context was low prices, while in 2017, in Brazil, there was a rise in prices. This difference could have influenced some responses to the interviews, mainly about efficiency by producers.

Practical implications
Reputation, protecion of property rights by measurement and information sharing allows reduction costs (transaction, measurement and negotiation costs). This efficiency implies improvement to the system, in cases of milk producers and processors.

Social implications
Improvements in the dairy system can have repercussions on several other improvements such as better distribution of income among agents in the chain; better-paid producers, which implies the improving quality of lives of these people; better products offered to consumers.

Originality/value
From a complementary perspective of transaction cost economics and measurement cost economics, reputation and protection of property rights are discussed with a focus on efficiency. Empirically, the paper contains heterogeneous data collected from two countries: Brasil and France.
Impact of upward and downward earnings management on stock returns
Authors: Ali Asgar , Bansal Manish 
Published: June 2021

PurposeThe current study aims at examining the impact of upward and downward earnings management on the cross-sections of stock return. The study also examines the moderating role of cross-sectional effects on the association between earnings management and stock returns.Design/methodology/approachThe study employed univariate and bivariate-sorted portfolio-level analysis to investigate the issue. Fama–Macbeth cross-sectional regression is used to analyze the moderating role of different cross-sectional effects. The study used a sample of 3085 Bombay Stock Exchange (BSE) listed stocks spanning over 20 years from January 2000 to December 2019.FindingsThe findings suggest that investors have different perceptions toward different forms of earnings management. In other words, results exhibit that investors perceive downward earnings management as an element of risk; hence, they discount the returns at a higher rate. On the contrary, results show that upward earnings management is positively perceived by the investors; hence, they hold the stocks even at a lower rate of return. This relation is found to be consistent even after controlling the impact of marker effect, size effect, value effect and momentum effect.Originality/valueThis study is among pioneering studies that consider the direction of earnings management while examining its impact on the stock return. This study is also among the earlier attempts to examine the moderating role of four different cross-sectional effects by taking a uniform sample of stocks over the same period.
CD‐g‐CS nanoparticles for enhanced antibiotic treatment of Staphylococcus xylosus infection
Authors: Zheng Si‐Di , Zhang Zhi‐Yun , Ma Jin‐Xin , Qu Qian‐Wei , God'spowe Bello‐Onaghise , Qin Yue , Chen Xue‐Ying , Li LU , Zhou Dong‐Fang , Ding Wen‐Ya , Li Yan‐Hua 
Published: June 2021

SummaryStaphylococcus xylosus (S. xylosus)‐induced cow mastitis is an extremely serious clinical problem. However, antibiotic therapy does not successfully treat S. xylosus infection because these bacteria possess a strong biofilm formation ability, which significantly reduces the efficacy of antibiotic treatments. In this study, we developed ceftiofur‐loaded chitosan grafted with β‐cyclodextrins (CD‐g‐CS) nanoparticles (CT‐NPs) using host–guest interaction. These positively charged nanoparticles improved bacterial internalization, thereby significantly improving the effectiveness of antibacterial treatments for planktonic S. xylosus. Moreover, CT‐NPs effectively inhibited biofilm formation and eradicated mature biofilms. After mammary injection in a murine model of S. xylosus‐induced mastitis, CT‐NPs significantly reduced bacterial burden and alleviated inflammation, thereby achieving optimized therapeutic efficiency for S. xylosus infection. In conclusion, this treatment strategy could improve the efficiency of antibiotic therapeutics and shows great potential in the treatment of S. xylosus infections.
Species‐specific differences of the avian oesophagus: Histological and Ultrastructural study
Authors: El‐naseery Nesma I. , Mohammed Asmaa A. A. , Abuel‐Atta Ahmed Awad , Ghonimi Wael A. M. 
Published: June 2021

AbstractThe oesophagus is a muscular tube comprised of cervical and thoracic regions. Several studies have clarified the histological structure of the oesophagus. However, its histoarchitecture in relation to variable dietary habits of each species is still unclear. In the current study, 21 pigeons, cattle egrets and ducks, n = 7, each was used. Macroscopically, the oesophagus of cattle egrets either the cervical or thoracic parts was the longest among the pigeons and ducks. Histologically, the oesophagus comprised of four distinct tunicae: mucosa, propria submucosa, musculosa and adventitia or serosa. A great structural variation in these layers among the three investigated species was recorded. In the cervical oesophagus of pigeons, the superficial squamous cells showed perinuclear halo zone, the propria submucosa was characteristically lacked any gland. Moreover, its musculosa was very thick. On the other hand, the intraepithelial glands were characteristically distributed along the whole length of the cattle egret’s oesophagus. Interestingly, the cervical esophagus of the ducks showed submucosal associated lymphatic tissue; diffuse and nodular Ultrastructurally, the oesophageal glands showed secretory granules of variable electron densities, electron‐lucent in the pigeons and ducks and electron‐dense in the cattle egrets.
Reliability and validity of the Cancer Health Literacy Test – Chinese versions: CHLT‐30‐Chinese and CHLT‐6‐Chinese
Authors: Chan Wing‐Lok , Pun Jack , Dong Dong , Siminoff Laura , Dumenci Levent 
Published: June 2021

AbstractAimsThe Cancer Health Literacy – 30 (CHLT‐30) and Cancer Health Literacy – 6 (CHLT‐6) are widely used instruments to measure cancer health literacy and to identify individuals with limited cancer health literacy, respectively. This study evaluated the psychometric performance of both instruments in Chinese cancer patient population.MethodsThe back‐translation method was used in cross‐cultural adaptation. Chinese versions, labeled as CHLT‐30‐Chinese and CHLT‐6‐Chinese, were administered to a diverse cross‐sectional sample of 602 cancer patients. Of these, 30 patients retook the instruments over a 2‐week interval to estimate test‐retest reliability. Classical and modern psychometric methods were used to estimate the item and test properties.ResultsModel fit statistics confirmed the original measurement structures of CHLT‐30‐Chinese (one‐factor model) and CHLT‐6‐Chinese (latent class model with limited and adequate cancer health literacy classes) providing construct validity evidence. The CHLT‐30‐Chinese showed high internal consistency (Cronbach's α = 0.83; McDonald's Ω = 0.93) and 2‐week test‐retest reliability (r = 0.78). The CHLT‐6‐Chinese separated limited and adequate cancer health literacy classes well (entropy = 0.77) with the estimated prevalence rates of 19% and 81%, respectively. The CHLT‐6‐Chinese was highly precise in assigning cancer patients into two categories: limited and adequate cancer health literacy classes with probability of 0.95 and 0.90, respectively. Invariant measurement properties of both instruments were supported between male and female patients as well as patients with and without high school diploma.ConclusionsThe findings support the psychometric properties of the CHLT‐30‐Chinese for measuring cancer health literacy as a continuous trait and CHLT‐6‐Chinese for identifying patients with limited cancer health literacy with high precision. The two tools are recommended for use in both daily practice and clinical trials.
Endoscopic trans‐ethmosphenoid optic canal decompression is an optimal choice to save vision for indirect traumatic optic neuropathy
Authors: Gao Yang , Li Jinmiao , Ma Huan , Nie Cong , Lv Xi , Lin Xiaofeng , Shi Jianbo , Lu Rong 
Published: June 2021

AbstractPurposeTo evaluate and compare the effectiveness of endoscopic trans‐ethmosphenoid optic canal decompression (ETOCD) and steroid pulse therapy (SPT) for indirect traumatic optic neuropathy (ITON).DesignProspective interventional case series.MethodsTotal 140 monocular ITON patients from January 2017 to June 2019 were recruited, including 100 patients received ETOCD (56 patients received ETOCD only and 44 patients received ETOCD combined with SPT before surgery), and 40 patients received SPT only. Their visual acuity (VA) and visual evoked potential (VEP) were analysed before and after treatments. Initial VA, lag time, causes of injuries and age were analysed for evaluating prognosis of treatment.ResultsIn contrast with patients received SPT only (15/40 = 38%), the effective rate of patients received ETOCD only and patients received ETOCD combined with SPT were both significantly better (46/56 = 82%, p < 0.001 and 30/44 = 68%, p = 0.005). Whether with SPT before ETOCD or not, after ETOCD, patients with VA improvement showed no significant difference. And 59/76 (77.6%) patients showed improvement within 24 hours. Patients who had residual visions achieved higher effective rate than those with no light perception (56/58 = 97% and 20/42 = 48%; p < 0.001) after ETOCD. For patients with long lag time of 21–90 days, 23/32 (72%) patients presented with vision improvement. Moreover, VEP was significantly improved after ETOCD. No severe complications were observed.ConclusionsEndoscopic trans‐ethmosphenoid optic canal decompression (ETOCD) is an effective and safe therapy for ITON, which is more effective than SPT. Even for patients with failure in responding to SPT, the successfully physical decompression is the most effective way to rescue optical nerve from permanent damage.