bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relationship between environmental indoor conditions of a classroom and the performance of undergraduate students
Authors: Paschoalin Filho João Alexandre , Guerner Dias Antonio Jose , Storopoli João Henrique , Ghermandi Andrea , de Carvalho Hendrio Chaves 
Published: March 2022

PurposeThis research aims at studying the influence of a classroom’s inner environmental conditions on undergraduate students’ performance using an experimental methodology.Design/methodology/approachThe Uchida-Kraepelin test (U-K test) was applied to measure the performance of a group of 47 students in a selected classroom that was arranged according to the following experimental conditions: air-conditioning on, and doors and windows closed (D1); doors and windows open, and air-conditioning off (D2); air-conditioning off, and doors and windows closed (D3). After completing the tests, questionnaires were distributed to evaluate the students’ assessment of each set of environmental conditions.FindingsOn-site measurements of humidity and carbon dioxide levels stress the importance of ensuring good natural ventilation through open doors and windows, independently of whether the air-conditioning system is operated or not. Also, the authors find that the students’ self-assessment regarding the inner environmental conditions for each studied set was entirely accurate, with set D3 being assessed as the worst. The U-K test scores for each environmental set did not show statistically significant differences, which means that, in the studied conditions, the student’s performance in the tests was not affected by the inner environmental conditions.Practical implicationsThere is a direct relationship between the building’s indoor conditions and an occupant’s health. Factors such as poor maintenance, bad indoor environmental quality (IEQ) and building age will worsen the building’s condition and negatively impact the occupant’s health. Educational buildings with poor IEQ can reduce the concentration and performance of occupants.Social implicationsSchool is an important place to help students grow in their various capabilities. They spend approximately 30% of their daily lives in schools for their educational activities. Since most of their activities are performed indoors, indoor environmental attributes, such as light, heat, air and sound, should be maintained as required. In general, schools are not thermally comfortable. The extreme thermal environment of classrooms affects students’ concentration. Thermal discomfort may also cause irritation. In addition to reduced concentration, such an environment could also cause tiredness, sluggishness and health problem.Originality/valueDespite the importance of the issue, scientific investigations of the correlations between students’ performance and the quality of scholar buildings’ inner environmental conditions are still relatively recent. In this context, this research further explores the effect of a classroom’s different environmental inner conditions on the performance of undergraduate students at a university in São Paulo/Brazil.
Nutritional knowledge, eating habits and quality of life of coeliac disease patients
Authors: Ainsworth Dawn , Soon Jan Mei 
Published: March 2022

PurposeCoeliac disease (CD) is a lifelong autoimmune disorder and is managed with a strict gluten-free (GF) diet. At diagnosis, an individual's nutritional status is affected by how long CD has been active, their dietary intake, intestinal inflammation and degree of malabsorption. This study explores if age and time since diagnosis affect nutritional knowledge, eating habits and emotional wellbeing of participants.Design/methodology/approachAn online survey using Qualtrics was conducted. The survey consists of 4 sections exploring (1) demographics, (2) nutritional knowledge, (3) eating habits and (4) quality of life (QoL). A total of 162 valid questionnaires were completed.FindingsThose who'd been diagnosed for more than 5 years demonstrated better knowledge about GF or gluten containing products. Social interactions are limited by concerns about becoming ill, unwanted attention and increased financial costs. Eight-eight % of participants would go hungry at social events. Those aged between 40–59 and above 60 years felt more financially restricted compared to younger adults (χ2(4) = 10.73, p = 0.01). Strong emotions were experienced by participants since diagnosed with CD. Anxiety, feelings of concern, sadness, depression and fear have declined and happiness, confidence and being accepting of CD have increased since diagnosis across all years.Originality/valueThis study is one of the first few studies to investigate time since diagnosis and age-related differences in nutritional knowledge, eating habits and QoL of adults diagnosed with CD. Over time, negative emotions could potentially be alleviated with improved knowledge and experience.
The relationship of physical, digital and social work environment changes with the development of organizational performance in the activity-based work environment
Authors: Lindeberg Peter , Saunila Minna , Lappalainen Pia , Ukko Juhani , Rantanen Hannu 
Published: March 2022

Purpose
Work environments are undergoing a transformation where organizations have various spatial solutions at their disposal. However, organizations may have challenges in making the right decisions in a work environment change, when the spatial solution is only one dimension of the work environment. The purpose of this paper is to approach this problem in a holistic way and explain the relationship between work environment changes and the development of organizational performance in the activity-based work (ABW) environment.

Design/methodology/approach
The results are based on an extensive quantitative survey involving 471 participants. The survey was theory driven and built on former literature. The participants were randomly collected from the largest cities in Finland, and the data were analyzed with a regression analysis.

Findings
The results showed that ABW environments require no more attention to the different work environment dimensions when compared to other office types, with the exception of the social work environment; the changes of which have a relatively strong relationship with the development of organizational well-being. In the ABW environment, a change in the physical work environment has a stronger relationship with the development of organizational productivity and a change in the social work environment has a stronger relationship with the development of organizational well-being than a change in the other work environment dimensions.

Originality/value
This study yields empirical evidence of the relationship of physical, digital and social work environment changes with the development of organizational performance in the ABW environment. The value of this paper is that it offers a simple but holistic research model to distinguish the outcomes between the different work environment dimensions so that relevant expertise is applied to take concrete and targeted action.
Comparative study of different moving mesh strategies for investigating oil flow inside a gearbox
Authors: Li Jing , Qian Xu , Liu Chunbao 
Published: March 2022

Purpose
This study aims to numerically investigate the multi-phase flow and thermal physics inside gearboxes, which is critical to the theoretical analysis of energy transfer.

Design/methodology/approach
To explore the churning power losses, a three-dimensional numerical model of the gearbox is built using the RNG k–e turbulence model and three alternative moving mesh strategies (i.e. the dynamic mesh [DM], sliding mesh and immersion solid methods). The influence of the rotational speed on the transient flow field, including the oil distribution, velocity and pressure distribution and the churning losses, is obtained. Finally, the time-dependent thermo-fluid state of the gearbox is predicted.

Findings
The findings show that the global DM method is preferable for determining the flow structures and power losses. The rotational speed exerts a significant effect on the oil flow and the wheel accounts for most of the churning losses. Based on the instantaneous temperature distribution, the asymmetric configuration leads to the initial bias of the high-temperature region towards the pinion. Additionally, the heat convection efficiency of the tooth tip is slightly higher than that of the tooth root.

Originality/value
An in-depth understanding of the flow dynamics inside the gearbox is essential for its optimisation to decrease the power and enhance heat dissipation during operation.
Capturing the flame structure and the transition process of the fire whirl using two combustion kinetic considerations
Authors: Fang Xiang , Yuen Anthony Chun Yin , Lee Eric Wai Ming , Tu Jiyuan , Cheung Sherman 
Published: March 2022

Purpose
The purpose of this paper is to investigate the development process of the fire whirl in the fixed-frame facility and focus on the impacts of the fire whirl’s vortex core on the formation and flame structure of the fire whirl.

Design/methodology/approach
The complex turbulent reacting flame surface is captured by the large eddy simulation turbulence closure coupled with two sub-grid scale (SGS) kinetic schemes (i.e. the chemistry equilibrium and steady diffusion flamelet). Numerical predictions are validated thoroughly against the measurements by Lei et al. (2015) with excellent agreements. A double maximum tangential velocity refinement approach is proposed to quantify the vortex cores’ instantaneous location and region, addressing the missing definition in other studies.

Findings
The numerical results show that the transition process of the fire whirl is dominated by the vortex core movement, which is related to the centripetal force. The unsteadiness of the fully developed fire whirl was found depending on the instantaneous fluctuation of heat release rate. The steady diffusion flamelet scheme is essential to capture the instantaneous fluctuation. Furthermore, the axial velocity inside the vortex core is the key to determining the state of fire whirl.

Practical implications
Due to intensive interactions between buoyant fires and ambient rotating flow, the on-set and formation of fire whirl still remain largely elusive. This paper focused on the transition process of fire whirl between different development stages. This paper provides insights into the transition process from the inclined flame to the fire whirls based on the centripetal force.

Originality/value
This paper presented and compared two SGS kinetic schemes to resolve the fire whirl development process and the unsteadiness of its vortical structures. The modelling framework addresses the shortcoming of previous numerical studies where RANS turbulence closure and simplified combustion kinetics was adopted. Numerical results also revealed the fire whirl transition process and its relationship to centripetal force.
Problematising philosophical assumptions in EE's Invisible College
Authors: Brentnall Catherine , Higgins David 
Published: March 2022

PurposeThis paper seeks to energise discussion around philosophical assumptions in entrepreneurship education (EE). Far from being abstract considerations, this paper underscores that philosophical assumptions – which are embodied in research products and inherited from others – have practical implications.Design/methodology/approachThe study’s approach is to purposefully unsettle taken-for-granted assumptions implicit within 44 influential articles which have been said to reveal EE's Invisible College. The authors utilise three heuristic tools offered by problematisation – identifying paradigmatic assumptions, (re)conceptualising subject matter and making a reversal – to explore the implications of the meta-theoretical underpinnings of this body of work. The goal of this paper is not to find a definitive answer to the question “what is EE's underlying philosophy?” but rather ask, “what can we learn about philosophical assumptions by reconsidering this particular set of influential articles at a deep level?”FindingsWith some notable expectations, EE's Invisible College is a place where ideas about an external social reality accessible to the dispassionate researcher are implicitly accepted, where assumptions about the possibility of objective knowledge and the superiority of scientific methodology dominate and where functionalist research products reproduce the social status quo. Thus, whilst the EE research studied might appear diverse at a surface level (topics, research design, inter-disciplinary perspective), diversity is less apparent when considering the deeper, philosophical assumptions which underpin this body of work.Originality/valueRevealing assumptions which are embodied within research products may prompt critical thinking about the practical implications of research philosophies in the field of EE. In considering the implications of philosophical assumptions, a connection is made between problems that are observed at surface level – from lack of legitimacy, criticality and taken for grantedness of the field – to the deeper hidden system of ideas which lies beneath. Having highlighted potential problems of these deeper assumptions, the paper concludes by posing questions in relation to the type of research that is pursued and legitimised in the field of EE, the socialisation of researchers and the implications for criticality in the field. Such issues illustrate that, far from philosophical assumptions being an abstract or unimportant concern, they are highly practical and have the power to constrain or empower action and the social impact of research.
Hybrid adaptive control for series elastic actuator of humanoid robot
Authors: Lanh Luu Anh Khoa , Duong Van Tu , Nguyen Huy Hung , Kim Sang Bong , Nguyen Tan Tien 
Published: March 2022

PurposeGenerally, humanoid robots usually suffer significant impact force when walking or running in a non-predefined environment that could easily damage the actuators due to high stiffness. In recent years, the utilization of passive compliant series elastic actuators (SEA) for driving humanoid's joints has proved the capability in many aspects so far. However, despite being widely applied in the biped robot research field, the stable control problem for a humanoid powered by the SEAs, especially in the walking process, is still a challenge. This paper proposes a model reference adaptive control (MRAC) combined with the back-stepping algorithm to deal with the parameter uncertainties in a humanoid's lower limb driven by the SEA system. This is an extension of our previous research (Lanh et al., 2021).Design/methodology/approachFirstly, a dynamic model of SEA is obtained. Secondly, since there are unknown and uncertain parameters in the SEA model, a Model Reference Adaptive Controller (MRAC) is employed to guarantee the robust performance of the humanoid's lower limb. Finally, an experiment is carried out to evaluate the effectiveness of the proposed controller and the SEA mechanism.FindingsThis paper proposes an effective control algorithm that can be widely applied for the humanoid-SEA system. Besides, the effect of the coefficients in the control law is analyzed to further improve the response's quality.Research limitations/implicationsEven though the simulation shows good results with stable system response, the practical experiment has not been implemented to fully evaluate the quality of the controller.Originality/valueThe MRAC is applied to control the humanoid's lower limb and the back-stepping process is utilized to combine with an external SEA system but still maintain stabilization. The simplified model of the lower-limb system proposed in the paper is proven to be appropriate and can be taken for further research in the future.
Managing employees’ health, safety and anxiety in a pandemic
Authors: Obuobisa-Darko Theresa 
Published: March 2022

PurposeThis paper identifies and discusses the strategies adopted by a manufacturing company to manage its national and international employees' anxiety, health and safety with the onset of the COVID-19 pandemic, to fill a current research gap.Design/methodology/approachThis paper uses the qualitative method to identify the strategies employed by a manufacturing company to manage its employees' anxiety, health and safety during the COVID-19 pandemic. Thematic analysis of data from fourteen semi-structured interviews is presented.FindingsResults from the data analysed show that five strategies that help manage employees' health, safety and anxiety are - enhanced communication, formulation and enforcement of policies, rules and regulation, education and training, and management commitment. The findings indicate that the implementation of these strategies does not lead to a negative effect and therefore can conclude that there was no cobra effect.Research limitations/implicationsAlthough exploratory and based on one organisation; the findings lay the foundation for future theoretically grounded research on management of employees' health, safety and anxiety.Practical implicationsFindings could be the basis for training for managers and also be used to modify the strategies applied in managing employees' anxiety, health and safety.Originality/valueThis paper investigates and offers insight into the best strategies to adopt to manage employees' anxiety, safety and health during the COVID-19 pandemic in the manufacturing sector.
Understanding the differential effectiveness of marketer versus user-generated advertisements in closed social networking sites: an empirical study of WeChat
Authors: Teng Teng , Li Huifang , Fang Yulin , Shen Lingzhi 
Published: March 2022

PurposeIn recent years, closed social networking sites (SNSs) have become popular advertising media. Marketer-generated advertisements (MGAs) and user-generated advertisements (UGAs) are the two pillars of advertising businesses. The objective of this research is to investigate and compare how these ad types (i.e. MGA versus UGA) affect advertising effectiveness in closed SNSs.Design/methodology/approachThe authors conducted a scenario-based experiment of 403 WeChat users in China and used partial least squares structural equation modeling (PLS-SEM) to examine the research model.FindingsThe study results indicate that UGAs perform better than MGAs in enhancing consumers' perceived informativeness, credibility and entertainment, while MGAs are more likely to make consumers feel irritated than UGAs in closed SNSs. Moreover, consumers' perceived informativeness, credibility and entertainment positively influence advertising effectiveness, whereas perceived irritation negatively affects it.Originality/valueThis study reveals consumers' psychological response mechanisms to MGA and UGA and sheds light on their differential effectiveness by extending the stimuli-organism-response model to the context of closed SNSs.
Earnings management by family firms to meet the debt covenants: evidence from India
Authors: Avabruth Suhas M. , Padhi Subha Kant 
Published: March 2022

PurposeGiven the unique nature of Indian family firms and the recent failure of many business houses (Bhushan Steel Ltd., Hotel Leela Ventures Ltd. etc.) it is important to understand the relationship between the earnings management practices of the family firms and the debt. In this paper an attempt towards this has been made.Design/methodology/approachThis study makes use of an empirical approach to understand the relationship between earnings management and debt in the Indian context. This study was conducted by considering a large sample data of 16,629 family firm years spread across nine years. This study makes use of fixed effects and Generalized Method of Moments (GMM) regressions to test our hypothesis.FindingsFirst and foremost, this research supports the socioemotional wealth theory. It indicates that maintaining the control of the business is one of the socioemotional factors for the Indian family business and Indian family businesses ladened with debt engage in earnings management to protect their socio emotional wealth (control of the business). Evidence for higher earnings management practices for firms with above average debt has also been documented. Further, the fact that real activity earnings management is the preferred earnings management choice over the accrual-based earnings management as majority of debt is from the banks and financial institutions has also been demonstrated. Finally, the analysis indicates that accrual-based earnings management and real activity earnings management are complementary to each other. However, real activity earnings management can also act as a substitute for the accrual-based earnings management but the reverse is not true. Even among the real activity earnings management, cost-based real activity earnings management was preferred over the revenue-based real activity earnings management as the former is more elusory.Research limitations/implicationsThis research is limited to the listed family firms of India. Since the family firms around the world are heterogeneous the findings from this research might not be extended to other economies.Practical implicationsThe study has meaningful insights for policy making and monitoring of the family firms. It also aides the investors in taking investment decisions with respect to family firms in India.Originality/valueThe study is unique as it integrates the family firms, debt and various types earnings management. Previous studies have focused mainly on accrual-based earnings management. The study also provides insights on the relationship between earnings management practices and debt covenants at various levels of family holdings.
Determinants of financial stress among university students and its impact on their performance
Authors: Hossain Md. Kamrul , Mahfuz Tajmary , Latif Subhenur , Hossain Mohamed Emran 
Published: March 2022

PurposeTo identify the financial stress and associate factors of tertiary level student.Design/methodology/approachTo identify the financial stress and associate factors, a structured questionnaire was developed to collect data from 571 students of different universities of Bangladesh through Google form. Chi square and Cramer's V were applied to find the associated factors with financial stress of students, whereas ordinal regression was performed to evaluate the influence of the associated factors on financial stress.FindingsGender, living status, borrowing loan factors have positive association with financial stress. Tuition fee dues have significant positive association with financial stress. A student who has tuition fee dues feels 1.48 times more stress compared to student who does not have dues. Females were found less likely to be financially stressed (AOR = 1.536) than male students. Students who borrowed loans were more likely to have financial stress than non-borrowed loan groups of students.Practical implicationsResults indicate that financial stress has a strong impact on participation in different academic and personal activities of a student. Therefore, parents, university administration and student counselor should consider the factor to assess stress of a student.Originality/valueThis study identified factors responsible for financial stress of Bangladeshi students of tertiary level.