bluuebunny/crossref_metadata_2025_split huggingface dataset:
Role of the constriction angle on the clogging by bridging of suspensions of particles
Authors: Vani Nathan , Escudier Sacha , Jeong Deok-Hoon , Sauret Alban 
Published: September 2024

Confined flows of particles can lead to clogging, and therefore failure, of various fluidic systems across many applications. As a result, design guidelines need to be developed to ensure that clogging is prevented or at least delayed. In this Letter, we investigate the influence of the angle of reduction in the cross section of the channel on the bridging of semidilute and dense non-Brownian suspensions of spherical particles. We observe a decrease of the clogging probability with the reduction of the constriction angle. This effect is more pronounced for dense suspensions close to the maximum packing fraction where particles are in contact in contrast to semidilute suspensions. We rationalize this difference in terms of arch selection. We describe the role of the constriction angle and the flow profile, providing insights into the distinct behavior of semidilute and dense suspensions.

Published by the American Physical Society
2024
Heavy fuel preparation effects on the operation of a spark ignition unmanned aerial vehicle engine
Authors: Hooper Peter 
Published: September 2024

Purpose
This paper aims to conduct an experimental and theoretical investigation into fuel pre-delivery effects for a heavy fuel crankcase scavenged spark ignition two-stroke cycle engine for unmanned aerial vehicle application.

Design/methodology/approach
One-dimensional computational fluid dynamic modelling of the engine system using WAVE software supported by experimental dynamometer testing of the subject engine with kerosene JET A-1 and gasoline and fuels.

Findings
The experimental research has shown performance improvements using fuel preheating via use of auxiliary transfer port fuel injection. Computational simulation has allowed comparisons with auxiliary transfer port injection and direct in-cylinder injection to be made.

Practical implications
While some heavy fuel engines are now available for unmanned aerial vehicles the best solution to meet the military equipment single fuel policy remains an area of evolving research. The findings within this study show possibilities for fuel pre-treatment.

Originality/value
One-dimensional computational fluid dynamic modelling of the engine system using WAVE software supported by experimental dynamometer testing of the subject engine with kerosene JET A-1 and gasoline fuels.
Beeyond Foods: creating a sweet honey revolution
Authors: Boppolige Archana Anand , Fernandez Cledwyn , Saggurti Suneetha 
Published: September 2024

Learning outcomes
After completion of the case study, the students will be able to[1] review the industry analysis using Porter’s five forces and strength, weakness, opportunities, threats framework and understand how a firm can achieve a competitive advantage, analyze the stakeholder theory and the salience of stakeholder mapping for enterprises with large number of stakeholders, apply the Mendelow framework of stakeholder mapping in this context and integrate it with stakeholder engagement for small enterprises and examine and evaluate how new age enterprises can engage better with stakeholders to provide a higher value creation.

Case overview/synopsis
Ayushi Srivastava started her enterprise, Beeyond Foods, in early 2021 with the aim to provide unadulterated, raw honey to consumers. She also wanted to help the beekeeping community by providing the beekeepers with a fair price for the procurement of honey from the bee hives. Beeyond Foods was a small enterprise in India that sold two variants of honey to consumers. The first variant was sourced from the Himalayan region of India, whereas the second was sourced from the Western Ghats of India. The primary distribution channel was trade fairs, where Srivastava would assemble her stall and sell honey to potential customers. Furthermore, a part of the sales was also driven by an electronic channel, which was through the company website. Customers could place their orders, and the honey would directly be delivered to their homes. With a successful start to the business, Srivastava was interested to scale her business and reach more customers. However, she was mindful that there were multiple stakeholders involved in the business. Srivastava had to study the values and needs of each stakeholder, while simultaneously formulate a strategy to expand her reach. This case study is designed to teach the concept of stakeholder value creation for small business enterprises.

Complexity academic level
This case study is well suited for an entrepreneurship and strategy course at the postgraduate (Master of Business Administration) level. This case study can also be taught in a marketing course.

Supplementary materials
Teaching notes are available for educators only.

Subject code
CSS3: Entrepreneurship.
ESG and firm performance: do stakeholder engagement, financial constraints and religiosity matter?
Authors: Ho Ly , Nguyen Van Ha , Dang Tung Lam 
Published: September 2024

PurposeThis study revisits the relationship between environmental, social and governance (ESG) activities and firm performance. More importantly, it tests whether this relationship is moderated by critical yet underexplored factors such as stakeholder engagement, financial constraints, and religiosity.Design/methodology/approachA wide range of estimation techniques, including pooled ordinary least squares (OLS), fixed effects, system generalized method of moments (GMM) and propensity score matching-difference-in-differences (PSM-DiD), are employed to investigate such issues in a large sample of firms from 31 countries.FindingsESG performance has a positive and significant impact on firm performance. While stakeholder engagement positively moderates this relationship, financial constraints and religiosity negatively moderate it. Interestingly, this positive linkage is driven by environmental and social performance rather than governance performance.Practical implicationsFirms should proactively engage in ESG initiatives and consider the intervening influences of stakeholder engagement, financial constraints and religiosity in making decisions to invest in ESG activities. Furthermore, our findings can help policymakers understand the financial consequences of ESG practices, which can be helpful in designing new policies to further promote corporate engagement in ESG practices.Originality/valueFirst, our research findings help reconcile the long-standing debate about the value impact of ESG. Second, our paper investigates relatively new aspects of the ESG-firm performance relationship. Third, our study offers more insight into the ESG literature by showing that not all ESG dimensions equally impact firm performance.
Does export promotion enhance firm-level intensive margin of exports? Evidence from a meta-regression analysis
Authors: Demena Binyam Afewerk 
Published: September 2024

PurposeThe impact of export promotion programs (EPPs) on the intensive margin of exports remains somewhat uncertain. This study tackles a crucial question: does export promotion enhance firm-level intensive margin of exports?Design/methodology/approachWe draw upon comprehensive empirical research conducted up to 2023. We collected 951 estimates, constructed 22 variables, captured diverse contexts and employed a meta-analytical approach to scrutinize the considerable variation in findings.FindingsThe overall meta-effect, after filtering out publication bias, is positive and statistically significant. Firms receiving EPP support exhibit an export intensity that is 1–9% higher than firms not participating in such programs. Assessing the mechanisms through which EPPs bolster this, we observe that support in the form of various services plays a more substantial role compared to assistance in the form of financial resources.Research limitations/implicationsEvaluating EPPs and their activities in terms of social welfare falls beyond the scope of this paper, which specifically focuses on the benefits of EPPs to export intensity. Subsequent research should undertake a comprehensive evaluation, considering both economic impacts and costs for accurate assessments of welfare. We also suggest that future meta-analyses explore other dimensions of firm-level performance linked to EPPs.Practical implicationsPublication bias distorts the impacts of EPPs, leading to an overstatement of their actual effects. Adjusting for publication bias, the practical significance of EPPs for a country’s trade intensity appears to be limited. Additionally, the provision of diverse activities and services primarily contributes to the amplification of export margins as compared to subsidies and grants. While larger firms initially benefit more from EPPs, these effects are found to be transitory.Originality/valueThis is the first meta-analysis scrutinizing the impact of EPPs, specifically concentrating on the firm-level intensive margin of exports.
Second language writing anxiety and ChatGPT adoption as an automated writing evaluation tool
Authors: Liu Zhifang 
Published: September 2024

PurposeThis study examines the relationship between the writing anxiety experienced by English second language learners and their intention to employ ChatGPT for their academic writing as an automated writing evaluation tool. This research integrates writing anxiety as an additional variable to understand how much writing anxiety affects the perceived usefulness of ChatGPT as an automated writing evaluation tool, perceived ease of use of ChatGPT, and attitude towards using ChatGPT as an automated writing evaluation tool for their academic writing with the technology acceptance model (TAM) as a theoretical framework.Design/methodology/approachThis is a cross-sectional study, with SEM PLS to analysis data collected from 639 undergraduate students.FindingsThis study found that writing anxiety significantly affects perceived ease of use of ChatGPT as an automated writing evaluation tool, and attitude towards using ChatGPT. Altogether they both influence students’ intention to use the ChatGPT as an automated writing evaluation tool.Originality/valueThis study contributes to the understanding of students intention to use ChatGPT as an automated writing evaluation tool when they suffer from writing anxiety.
Valeant pharmaceuticals fraud
Authors: Belanger Maude , Hounwanou Dossa Charles , Menah Koffi Sanvee , Sauvageau Isabelle , Smaili Nadia 
Published: September 2024

Purpose
The aim of this study is to examine the patterns of fraud present in Valeant’s 2014 and 2015 financial statements and determine through a risk management analysis whether these frauds could have been prevented. This analysis provides the opportunity to more effectively prevent financial statement fraud.

Design/methodology/approach
Data were collected from Valeant pharmaceuticals annual reports, financial statements reports and financial authority documentation. Based on these documents, this paper analyzes the different fraud schemes and investigate whether fraud could have been detected earlier by governance actors. In particular, this paper examines the firm’s financial statements three years before the fraud was detected by the Securities and Exchange Commission.

Findings
The analysis of financial statements reveals few clues and no alarming red flags three years before detection of the fraud. However, financial statement analyses were complex because of the many acquisitions the firm made in the years before.

Originality/value
This paper aims to contribute to the literature on fraud by investigating a case of financial statement fraud.
Speak, search, and stay: determining customers' intentions to use voice-controlled artificial intelligence (AI) for finding suitable hotels and resorts
Authors: Ahmed Selim , Chowdhury Ujjal Yaman , Ashrafi Dewan Mehrab , Choudhury Musfiq Mannan , Ahmed Rafiuddin , Ahmed Rubina 
Published: September 2024

PurposeThe present study investigates the customers' behavioural intention to use voice-based artificial intelligence (AI) to find the appropriate hotels and resorts in an emerging nation. This study determines the influences of information quality, system quality, privacy, and novelty value on attitude and behavioural intention to use voice-based artificial intelligence to obtain the appropriate information and find the location of the hotels and resorts.Design/methodology/approachThis study used a purposive sampling method for collecting data from the respondents, who are customers of the hotels and resorts in Bangladesh. A self-administered survey questionnaire was used to obtain responses from 378 respondents. After collecting the data, the reliability and validity of the constructs and hypotheses were tested via partial least squares structural equation modelling (PLS-SEM).FindingsThe findings of the study indicate that information quality, system quality, privacy and novelty value have a positive and significant impact on attitude and behavioural intention to use voice-based AI assistant services in an emerging nation. However, system quality does not significantly influence behavioural intention to use voice-based AI assistant but it has an indirect significant influence on behavioural intention through the mediation effect of attitude.Practical implicationsThe study’s findings provide essential guidelines for practitioners to understand the impacts of information quality, system quality, privacy, and novelty value on attitude and behavioural intention to use voice-based artificial intelligence to find the appropriate hotels and resorts to meet customers' needs and expectations.Originality/valueThis study contributes to the existing literature on technology adoption by highlighting the interconnectedness of various factors influencing users' behavioural intentions. The study’s focus on an emerging nation provides a valuable theoretical contribution. It highlights that user perceptions and attitudes towards technology adoption may differ from those in developed nations due to unique contextual factors.
Understanding copycat packaging: a systematic review and research directions
Authors: Oguz Ezgi , Marsden Jamie 
Published: September 2024

Purpose
The literature on copycat packaging has developed intermittently over a 30-year period, resulting in a divergent and fragmented body of knowledge. This paper aims to synthesise the extant literature to highlight the main developments in the marketing, legal and design fields and, in doing so, contributes to a holistic understanding of the research area and suggests directions for future research.

Design/methodology/approach
A systematic literature search retrieved 5,862 articles, and after filtering against explicit criteria, 49 studies were reviewed. These articles were subsequently evaluated and interpreted, producing a synthesis of current research.

Findings
The constructs of copycat packaging, including similarity-related concepts, consequences of copycat packaging and mitigating approaches, have been reported across three disciplines of marketing, legal and design, each having its own distinct focus but nonetheless sharing overlapping themes.

Research limitations/implications
This review discusses future directions and proposes a framework of research themes relating to brand enhancement for online purchasing, measurement of brand confusion, reinforcing design features and approaches to mitigating copycat practices.

Originality/value
To the best of the authors’ knowledge, this study is the first systematic review of the literature on copycat packaging. It brings together the latest thinking on copycat packaging and identifies distinct research issues to be addressed in future studies.
Promoting BMI through organizational culture: the mediating role of strategic flexibility
Authors: Kafetzopoulos Dimitrios , Gotzamani Katerina , Vouzas Fotios 
Published: September 2024

PurposeThe main purpose of this study is to investigate the role of organizational culture in creating a supportive environment for business model innovation (BMI) by focusing on the mediating role of strategic flexibility and the moderating effect of technological capability.Design/methodology/approachTo achieve this objective an empirical survey was conducted among 379 participant firms in Greece. CFA and finally hierarchical regression analysis were performed to validate the data and examine the hypothesized relationships.FindingsThe results show that strategic flexibility mediates the relationship between organizational culture and BMI. The effect of organizational culture on strategic flexibility is stronger for firms with increased technological capability.Research limitations/implicationsData were collected at only one point in time from one country, Greece. This might pose limitations on the generalizability of our results. Furthermore, we did not explore many internal or external mediating or moderating factors in the relationship between organizational culture and BMI.Practical implicationsManagers should consider incorporating a suitable organizational culture into their strategies to enable them improve their strategic flexibility, which further promotes BMI.Originality/valueThe current state of knowledge of both theory and practice for critical organizational factors such as organizational culture, strategic flexibility, BMI and technological capability will be extended.
Dyeing kinetics and thermodynamics of mono-chlorotriazine reactive dye in recycled wastewater
Authors: Li Wanxin , An Fangfang , Shu Dawu , Lian Zengshuai , Han Bo , Cao Shaolei 
Published: September 2024

Purpose
This study aims to elucidate the dyeing kinetics and thermodynamic relationships of CI Reactive Red 24 (RR24) on cotton fabrics, achieve the recycling of inorganic salts and water resources and obtain comprehensive data on color parameters, fastness and other characteristics of fabrics dyed with the recycled dyeing residual wastewater.

Design/methodology/approach
The dyeing wastewater obtained through advanced oxidation technology was used as a medium for dyeing cotton fabrics with RR24. The absorbance value of the dyeing residue served as an evaluation index, and the relevant kinetic and thermodynamic parameters were calculated based on this absorbance. The color parameters and fastness of the fabric samples were measured to compare the performance of different dyeing media.

Findings
Dyeing cotton with RR24 in both media follows pseudo-second-order kinetics. When dyeing with wastewater media, the dye adsorption in the first 45 min increased by 0.082–1.29 g/kg compared with conventional dyeing. Furthermore, the half-dyeing time was shortened by 4.19–11.99 min and the equilibrium adsorption amount was reduced by 0.277–0.302 g/kg. The adsorption of RR24 on cotton fabrics conformed to the Freundlich model. Fabrics dyed using recycled wastewater exhibit a deeper color, with reduced red light and enhanced blue light, resulting in an overall deeper apparent color.

Originality/value
These dyeing kinetics and thermodynamic properties are beneficial for comprehending and interpreting the dyeing performance and behavior of reactive dyes in dyeing wastewater. They lay a theoretical foundation for the treatment and recycling of dyeing wastewater.
Higher phosphorus and water use efficiencies and leaf stoichiometry contribute to legume success in drylands
Authors: Acuña‐Acosta Delia M. , Castellanos Alejandro E. , Llano‐Sotelo José M. , Sardans Jordi , Peñuelas Josep , Romo‐Leon José R. , Koch George W. 
Published: September 2024

Abstract

Legumes are essential plants in dryland ecosystems worldwide because they increase nitrogen availability, so their understanding is vital for improving knowledge and modelling in the face of climate change.
This work studies the differences in resource use efficiency and their relationship with photosynthetic, photochemical, bioelemental, and stoichiometric traits of coexistent legumes and non‐legumes in a Sonoran Desert ecosystem.
We found that legumes had higher photosynthetic rates, intrinsic and seasonal water use efficiency (WUE), phosphorus use efficiency (PPUE), and higher light utilisation mediated by chlorophyll content and active reaction centers, which may increase their photoprotection. Legumes can increase their WUE and PPUE with no changes in nitrogen use efficiency (PNUE). Consequently, observed trait relationships between studied traits in these legumes have significant differences with the non‐legume species in the study.
Stoichiometry is helpful, in some cases, as an indicator of nutrient use efficiency and enables functional group differentiation.
Our results strongly relate legumes' higher resource use efficiency with their success in dryland ecosystems.

Read the free Plain Language Summary for this article on the Journal blog.
‘Good fortune in the camps never lasted’: Gendered experience of carceral labour in the Soviet Union, 1930–1953
Authors: Popova Zhanna 
Published: September 2024

AbstractGendered order in the Soviet camp system shaped women inmates’ experiences of labour and factored in their survival. This article zooms in on the published memoirs of four women political prisoners who survived the Gulag and explores how they experienced and narrated carceral labour. It focuses on three types of labour taking place in the carceral setting – forced labour, care work and clandestine crafts – and investigates the gendered dynamics that surrounded each of these interrelated types of labour. Historically‐situated forms of women inmates’ constrained labour‐related agency, as the memoirs show, were diverse and not always limited to outright resistance or compliance.
miR‐927 regulates insect wing development by targeting the Hippo pathway
Authors: Yu Xuan , Sun Bing , Gao Xuequan , Liu Qingxin , Zhou Zizhang , Zhao Yunhe 
Published: September 2024

AbstractHow organ size is determined is a fundamental question in life sciences. Recent studies have highlighted the importance of the Hippo pathway in regulating organ size. This pathway controls cell proliferation and cell death to maintain the proper number of cells. The activity of the Hippo pathway is tightly fine‐tuned through various post‐translational modifications, such as phosphorylation and ubiquitination. Here, we discover that miR‐927 is a novel regulator of wing size. Overexpression of miR‐927 decreases wing size, which can be rescued by co‐expressing miR‐927‐sponge. Next, we show that miR‐927 stimulates apoptosis and suppresses the expression of Drosophila inhibitor of apoptosis protein 1, a well‐known target gene of the Hippo pathway. Genetic epistatic analyses position miR‐927 upstream of Yorkie (Yki) to modulate the Hippo pathway. In addition, there is a matching miR‐927 seed site in the yki 3′ untranslated region (3′‐UTR), and we demonstrate that yki 3′‐UTR is the direct target of miR‐927. Ultimately, our study reveals that the targeting of yki by miR‐927 to regulate the Hippo pathway is conserved in Helicoverpa armigera. Administration of miR‐927 via star polycation (SPc) nanocarrier effectively inhibits wing development in H. armigera. Taken together, our findings uncover a novel mechanism by which Yki is silenced at the post‐transcriptional level by miR‐927, and provide a new perspective on pest management.