bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical simulation of natural convection within wavy square enclosure filled with nanofluid under magnetic field using EFGM with parallel algorithm
Authors: Nishad Surabhi , Jain Sapna , Bhargava Rama 
Published: February 2021

Purpose
This paper aims to study the flow and heat transfer inside a wavy enclosure filled with Cu-water nanofluid under magnetic field effect by parallel implemented meshfree approach.

Design/methodology/approach
The simulation has been carried out for a two-dimensional model with steady, laminar and incompressible flow of the nanofluid filled inside wavy enclosure in which one of the walls is sinusoidal such that the amplitude (A = 0.15) and number of undulations (n = 2) are fixed. A uniform magnetic field B0 has been applied at an inclination angle γ. The governing equations for the transport phenomena have been solved numerically by implementing element-free Galerkin method (EFGM) with the sequential as well as parallel approach. The effect of various parameters, namely, nanoparticle volume fraction (φ), Rayleigh number (Ra), Hartmann number (Ha) and magnetic field inclination angle (γ) has been studied on the natural convection flow of nanofluid.

Findings
The results are obtained in terms of average Nusselt number calculated at the cold wavy wall, streamlines and isotherms. It has been observed that the increasing value of Rayleigh number results in increased heat transfer rate while the Hartmann number retards the fluid motion. On the other hand, the magnetic field inclination angle gives rise to the heat transfer rate up to its critical value. Above this value, the heat transfer rate starts to decrease.

Originality/value
The implementation of the magnetic field and its inclination has provided very interesting results on heat and fluid flow which can be used in the drug delivery where nanofluids are used in many physiological problems. Another important novelty of the paper is that meshfree method (EFGM) has been used here because the domain is irregular. The results have been found to be very satisfactory. In addition, parallelization of the scheme (which has not been implemented earlier in such problems) improves the computational efficiency.
Develop artificial neural network numerical modeling to study fluid flow and heat transfer of dispersed nanoparticles through base liquid
Authors: Alkanhal Tawfeeq Abdullah 
Published: February 2021

Purpose
This paper aims to disperse the silicon dioxide in water (as the mono nanofluid [MN]) and then, carbon nanotube (CNT)-silica composite in water (as the hybrid nanofluid [HN]).

Design/methodology/approach
Nanofluids have gained lots of attention through the recent years. Due to their usage in the industries and also medical applications, they have high protentional to be studied in different aspects. The most common study for the nanofluids is to understand the heat transfer capacity for each material in each fluid. These material(s) or fluid(s) can be one (mono nanofluid) or more than one (hybrid nanofluid).

Findings
The mixture of two solids is to assess the unique properties of each material and also to decrease the cost of experiments. The heat transfers for both MN and HN were measured at volume fractions up to 1.0%, and temperatures up to 50°C. Also, the heat transfers were compared. By more CNT, thermal conductivity was enhanced about 17.39% (from 12.42% of MN to 29.81% of HN).

Originality/value
X-Ray diffraction and field emission scanning electron microscope (FESEM) were examined for mono solids and the composite. After the experimental study, for MN and HN, four novel correlations calculated.
Assessment of information literacy skills and information-seeking behavior of medical students in the age of technology: a study of Pakistan
Authors: Haider Mohammad Sohail , Ya Chen 
Published: February 2021

PurposeInformation literacy skills (ILSs) and information-seeking behavior (ISB) is a widespread topic that needs modern technologies to improve the technical skills of the students. The purpose of this study is to assess the usage of library resources for medical college students. To explore and understand the student’s level of satisfaction, learning and seeking behavior by efficient information retrieval systems.Design/methodology/approachThe study is based on a quantitative research method and data was collected from the undergraduate students of medical colleges Islamabad Pakistan. The data were analyzed by Statistical Package for Social Science (SPSS) version 25 using Pearson correlation statistical test to identify the level of proficiency of correlation of variables and testing of the proposed hypothesis.FindingsThe finding of the study shows that the medical students can enhance their IT skills to seek the information in this technology era. The medical institutional administration can develop the education development policy, traditional health education policy, funds allocating policy, health information literacy and collaborate with library staff for enhancing the services and to meet the information need of medical students.Practical implicationsThe conclusion of this study is very helpful to reduce the barriers between the students and the library staff. The findings of the study are also beneficial for the administration to improve and develop the strategies for enhancing the ILSs of medical students to achieve medical educational information in the age of technology. Therefore, all significant structures want to improve and to develop the environment of information seeking by medical students to achieve medical educational information.Social implicationsMedical college library administrative management must be design useful a durable policy to come up with the technology development for digital literacy. The study reduces the barriers between the students and the library staff.Originality/valueThe study is based on quantitative research method to find out ISB of medical students.
An analysis of attitude of general public toward COVID-19 crises – sentimental analysis and a topic modeling study
Authors: S.V. Praveen , Ittamalla Rajesh 
Published: February 2021

Purpose
It has been eight months into the global pandemic health crises COVID-19, yet the severity of the crises is just getting worse in many parts of the world. At this stage, it is essential to understand and observe the general attitude of the public toward COVID crises and the major concerns the public has voiced out and how it varies across months. Understanding the impact that the COVID-19 crises have created also helps policymakers and health-care organizations access the primary steps that need to be taken for the welfare of the community. The purpose of this study is to understand the general public's response towards COVID-19 crises and the major issues that concerns them.

Design/methodology/approach
For the analysis, data were collected from Twitter. Tweets regarding COVID-19 crises were collected from February 1, 2020, to June 27, 2020. In all, 433,195 tweets were used for this study. Natural language processing (NLP), which is a part of Machine learning, was used for this study. NLP was used to track the changes in the general public's sentiment toward COVID-19 crises and LDA was used to understand the issues that shape the general public's sentiments the crises time. Using Python library Wordcloud, the authors further derived how the primary concerns regarding COVID crises various from February to June of the year 2020.

Findings
This study was conducted in two parts. Study 1 results showed that the attitude of the general public toward COVID crises was reasonably neutral at the beginning of the crises (Month of February). As the crises become severe, the sentiments toward COVID increasingly become negative yet a considerable percentage of neutral sentiments existed even at the peak time of the crises. Study 2 finds out that issues including the severity of the disease, Precautionary measures need to be taken, and Personal issues like unemployment and traveling during the pandemic time were identified as the public's primary concerns.

Originality/value
The research adds value to the literature on understanding the major issues and concerns, the public voices out about the current ongoing pandemic. To the best of the authors’ knowledge, this is the first study with an extended period of timeframe (Five months). In this research, the authors have collected data till June for analysis that makes the results and findings more relevant to the current time.
Is Caribbean tourism in overdrive? Investigating the antecedents and effects of overtourism in sovereign and nonsovereign small island tourism economies (SITEs)
Authors: Peterson Ryan , DiPietro Robin B. 
Published: February 2021

PurposeDrawing on theories of development economics and sustainable tourism, this research explores the differences between sovereign and nonsovereign small island tourism economies (SITEs) and identifies the antecedents and effects of overtourism in the Caribbean.Design/methodology/approachThe research design is based on a comparative case study of selected Caribbean SITEs. Case study research involves a detailed empirical inquiry that investigates a contemporary phenomenon within its real-life context. The main purpose of a case study is to provide a contextual analysis of the conditions and processes involved in the phenomenon under study. A comparative case study is an appropriate research methodology to explore new multi-faceted concepts with limited empirical evidence.FindingsThe results confirm previous studies that nonsovereign SITEs have a distinctive overdrive toward tourism specialization. Moreover, the findings indicate that overtourism is driven by both global and domestic policy factors and generates significant economic volatility, social inequality and ecological stress. The paper discusses the tourism policy implications of the evolving economic disconnectedness, environmental decay and social tensions in SITEs in the Caribbean.Originality/valuePolicy recommendations are presented for transitioning toward a more inclusive development and strengthening the resilience of small island tourism development in the Caribbean.
How infomediaries on Twitter influence business outcomes of a bank
Authors: Illia Laura , Colleoni Elanor , Meggiorin Katia 
Published: February 2021

PurposeThe purpose of this paper is to empirically explore under which conditions Tweets of infomediaries (i.e. ordinary users having few or no followers on Twitter) might nevertheless promote a negative sentiment toward a corporation to the point of having a negative impact on the corporation's outcomes.Design/methodology/approachThe empirical study is based on a unique database that combines a sample of one year of Twitter conversations about an Italian bank and its daily business performances (i.e. number of closures and openings). The relationship between these two is analyzed using autoregressive time series models (VAR).FindingsFindings indicate that a tweet affects a bank’s outcomes only when embedded in a larger conversation about the bank, rather than simply repetitively shared. These findings contribute to two debates within bank marketing literature. First is the debate about the role of infomediaries in banks' outcomes, as it urges to reconsider the way banks' online reputation is conceptualized and measured. Second is the debate on opportunities and threats of social media for the banking industry, as it indicates that negative sentiment expressed by the general public influences not only stock markets but also directly banks' outcomes.Originality/valueThis study allows managers and corporations to understand what to do when conversations of unknown individuals become threatening for the company. To influence such situations, the company should identify not only the actors that are influencers but also the communications that have been popular in the past for their brand or the brand of their competitors and monitor the conversational volume and broadness.
The impact of religiosity on political skill: evidence from Muslim hotel employees in Turkey
Authors: Wang Yao-Chin , Chi Christina Geng-Qing , Erkılıç Eren 
Published: February 2021

Purpose
While former literature has shown that people have a strong tendency to seek religious support during difficult times, knowledge gaps exist in how the mechanism of religiosity works to support employees’ mental status and performance. Therefore, based on self-categorization theory, this study aims to examine the effects of employees’ intrinsic and extrinsic religiosity on building their mental toughness and mindfulness and the further formation of employees’ political skills.

Design/methodology/approach
Data was collected from 404 full-time hotel employees working in 34 hotels in Turkey during the coronavirus (COVID-19) pandemic in spring 2020. Structural equation modeling was used to examine the proposed hypotheses.

Findings
Results of this study show that intrinsic religiosity improves employees’ mental toughness, while extrinsic religiosity enhances employee mindfulness. Additionally, both mental toughness and mindfulness help employees to develop political skill.

Research limitations/implications
This study enriches knowledge to workplace religiosity literature and expands the research scope of religion-related research in hospitality and tourism literature. Future studies are recommended to consider religious heterogeneity and longitudinal design.

Practical implications
To foster employee mental well-being, hotel firms should create a religious-friendly workplace and develop religion-friendly policies. Opportunities should be created within hospitality organizations for employees to develop and use their political skills in needed work aspects.

Originality/value
The findings of this study contribute to valuable theoretical and practical implications. To the best of the knowledge, this study is one of the first attempts to study hotel employees’ religiosity during the COVID-19 pandemic.
Investigating facemask problems associated with wearing comfort and fit
Authors: Morishima Mika , Kishida Koya , Fukagawa Miho 
Published: February 2021

PurposeA facemask is used to cover the nose and mouth to protect a wearer's health in daily life. The authors’ long-term goal aimed to ensure more people with different physical characteristics and different attitudes can wear a high performance and comfortable facemask. In the present paper, wearers were surveyed by a questionnaire. Additionally, a prototype improvement pattern with a fit performance was investigated.Design/methodology/approachThe survey of facemask wearers was conducted with local students and international students in Japan. A basic pattern with high fit performance was analyzed using a combination of triangles based on the measured three-dimensional coordinates of the head shape of a Japanese mannequin.FindingsThe aggregated survey data indicated that 85.0% of the Japanese female students, 77.2% of international female students, 70.8% of Japanese male students and 54.3% of international male students were facemask wearers. Wearers had problems related to their masks' thermal, hygroscopic and airflow properties. Japanese nonusers did not wear them due to dislike related to the problems above. International nonusers had no experience of wearing them. It was concerned that these discomfort factors influence fit performance and reduction of wearing effects. Therefore, the authors analyzed a sheet pattern with a high fit performance for a Japanese head mannequin.Originality/valueThese results will contribute in improving hygienic facemasks for people at the global level. The survey results and pattern analysis provide of necessary conditions of development of the mask with comfortable and high fit performance.
Experimental study of heat and moisture transfer in vertical air gap under protective clothing against dry and wet heat exposures
Authors: Su Yun , Tian Miao , Wang Yunyi , Zhang Xianghui , Li Jun 
Published: February 2021

PurposeThe purpose of this paper is to study heat and steam transfer in a vertical air gap and improve thermal protective performance of protective clothing under thermal radiation and hot steam.Design/methodology/approachAn experiment-based model was introduced to analyze heat and moisture transfer in the vertical air gap between the protective clothing and human body. A developed test apparatus was used to simulate different air gap sizes (3, 6, 9, 12, 15, 18, 21 and 24 mm). The protective clothing with different air gap sizes was subjected to dry and wet heat exposures.FindingsThe increase of the air gap size reduced the heat and moisture transfer from the protective clothing to the skin surface under both heat exposures. The minimum air gap size for the initiation of natural convection in the dry heat exposure was between 6 and 9 mm, while the air gap size for the occurrence of natural convection was increased in the wet heat exposure. In addition, the steam mass flux presented a sharp decrease with the rising of the air gap size, followed by a stable state, mainly depending on the molecular diffusion and the convection mass transfer.Originality/valueThis research provides a better understanding of the optimum air gap under the protective clothing, which contributes to the design of optimum air gap size that provided higher thermal protection against dry and wet heat exposures.
Intracultural differences in dining behavior and preferences among Hong Kong and Taiwan tourists
Authors: Wan Yim King Penny , Kim Seongseop (Sam) 
Published: February 2021

Purpose
This paper aims to investigate the perceptions by owners and staff working in causal full-service restaurants in Macao of their two major subcultures of customers: Hong Kong Chinese and Taiwan Chinese in terms of their dining behavior and preferences.

Design/methodology/approach
Face-to-face interviews with 36 service staff of casual dining restaurants in Macao were conducted through the purposive convenience sampling method. Thematic content analysis was conducted in the data analysis.

Findings
The results reveal that although the customers from the two Chinese subcultures have a similar appearance, use the same Chinese characters and share common cultural inheritances; their dining behavior and preferences are perceived as being different.

Practical implications
Practical implications are given on how to better design the products and services to meet each subgroup’s needs for enhancing customers’ experience and service quality in restaurant settings.

Originality/value
This study focuses on examining if there are any sub-cultural differences in food behaviors and preferences among Hong Kong and Taiwan visitors, who are the major tourist sources in the world market. It contributes to the scarce literature on intracultural dining variances of sub-groups within Chinese.
Is employee-client matching good for firms targeting the bottom of the pyramid? A study of microfinance institutions
Authors: Otiti Naome , Andersson Kjetil , Mersland Roy 
Published: February 2021

PurposeThe purpose of this study is to determine whether there exists employee-client matching at the bottom of the pyramid (BOP) and the most favourable employee-client categorization in terms of employee productivity when serving the BOP market. This is important in a bid to determine how to effectively operate at the BOP given the market’s unique characteristics.Design/methodology/approachThis study uses two methods depending on the research question. First, a one-way analysis of variance (ANOVA) is used to determine the different employee-client categories based on socio-economic status. Second, fixed effects analyses are performed based on these categories to determine the most suitable employee-client category.FindingsThe results show the existence of employee-client matching based on similar socio-economic status. However, multivariate testing reveals that the mismatch category, where employees are of higher socioeconomic status than the clients, generates more favourable employee productivity. Moreover, this result may be contingent on the geographical location of the firm.Practical implicationsThe findings are important for human resource management particularly the employment strategy of BOP firms. It suggests the need to consider employee profiles and client profiles when deciding which new markets to target.Originality/valueThe paper uses a global database of microfinance institutions as a case of BOP firms to investigate employee-client matching at the bottom of the pyramid.
Authentic leadership as a mediator between professional identity, ethical climate, citizenship behavior and political behavior
Authors: Milon Libi , Shapira-Lishchinsky Orly 
Published: February 2021

PurposeThe purpose of this paper is to explore the mediating effect authentic leadership (AL) has on professional identity (PI), ethical climate (EC) and organizational citizenship behaviors (OCB) and political behavior (PB) among elementary school principals in Israel.Design/methodology/approachFour hundred and ten elementary principals from various Israeli districts participated in the study. The research is based on principals' self-report questionnaires. The analysis focused on SEM using AMOS software.FindingsResults indicated that AL fully mediates the relationships between PI and OCB and PB while partially mediates the relationships between EC and OCB and PB.Research limitations/implicationsThis study could contribute to the design of an integrative model not previously researched, while exploring relationships between behaviors perceived as mutually opposite. This study suggested that to increase OCB and decrease PB, authentic leadership among elementary school principals should be enhanced by educational leaders.Originality/valueThe new model is likely to help school principals to deal with political behaviors while fostering citizenship behaviors during their work. Educational leaders may design professional training for principals in order to encourage the development of the positive aspects of OCB and PB.