bluuebunny/crossref_metadata_2025_split huggingface dataset:
How can The Left-Out Store get it right?
Authors: Prasad S. Shyam , Desai Rajendra , Wadher Maitri 
Published: October 2023

Learning outcomes
This case study will allow students to learn about effective segmentation and how to choose an appropriate segment, analyse the attractiveness of the target market by using five-forces analysis and explore business growth alternatives by using Ansoff’s growth matrix.

Case overview/synopsis
The Left-Out Store was an online shop that sold products exclusively for left-handers. Maitri Wadher, the proprietor of the store, being a left-handed person and driven by her childhood experiences, started the store to help left-handed people find products for their use. She started the online-only store in September 2018, and in October 2022, she found that, despite the COVID-19 pandemic having abated, her store had not grown as expected. How, then, should she push for growth? Was the niche segment substantial enough? Was her target market attractive? Should she penetrate the market or go for market development? What should she do?

Complexity academic level
PG level (MBA/PGDM).

Supplementary materials
Teaching Notes are available for educators only.

Subject code
CSS 8: Marketing.
If managers feel safe, budget control becomes enabling. Evidence from a large local government organization in Sweden
Authors: Johansson-Berg Tobias , Wennblom Gabriella 
Published: October 2023

Purpose The authors study how enabling perceptions (flexibility, reparability and internal and global transparency) of a budgetary control system are formed, and whether enabling perceptions empower lower-level managers and make them form less negative attitudes about red tape in the organization. This study research is warranted because of the lack of knowledge on how perceptual variation in flexibility, repairability and transparency of a control system within an organization, where managers experiencing the same control system design, can be explained.Design/methodology/approachSurvey data with answers from 211 managers from a large local government organization in Sweden is analyzed with structural equation modeling.FindingsThe extent to which the budget system is perceived as having enabling qualities (being flexible, reparable and transparent) is explained by the safeness of the individual manager's psychological climate. This climate is characterized by trust and fairness perceptions in upper management. In turn, enabling perceptions positively affect a sense of psychological empowerment and reduces attitudes toward red tape in the organization.Originality/valueThe authors contribute by identifying an important factor explaining individual-level variability in enabling perceptions of control systems within organizations. Compared to previous research that has taken an interest in the organizational-level climate, the authors theorize about and investigate (parts of) the individual-level psychological climate as an explanation of within-system variability.
Design of UWB MIMO antenna using lean wearable textile substrate for reduced SAR
Authors: Perumalsamy Sasireka , G. Kavya , S. Rajkumar 
Published: October 2023

Purpose
This paper aims to propose a two-element dual fed ultra-wideband (UWB) multiple input multiple output (MIMO) antenna system with no additional decoupling structures. The antenna operates from 3.1 to 10.6 GHz. The antenna finds its usage in on-body wearable device applications.

Design/methodology/approach
The antenna system measures 63.80 × 29.80 × 0.7 mm. The antenna radiating element is designed by using a modified dumbbell-shaped structure. Jean cloth material is used as substrate. The isolation improvement is achieved through spacing between two elements.

Findings
The proposed antenna has a very low mutual coupling of S21 < −20 dB and impedance matching of S11 < −10 dB. The radiation characteristics are stable in the antenna operating region. It provides as ECC < 0.01, diversity gain >9.9 dB. The antenna offers low average specific absorption rate (SAR) of 0.169 W/kg. The simulated and measured results are found to be in reasonable match.

Originality/value
The MIMO antenna is proposed for on-body communication, hence, a very thin jean cloth material is used as substrate. This negates the necessity of additional material usage in antenna design and the result range indicates good diversity performance and with a low SAR of 0.169 W/kg for on-body performance. This makes it a suitable candidate for textile antenna application.
Measuring the effects of electronic government services and corrupt practices on information exchange: a comparison of public and private hospitals
Authors: Shrivastava Utkarsh , Han Bernard , Daneshvar Kakhki Mohammad , Tarn J. Michael 
Published: October 2023

Purpose
Health Information Exchange (HIE) is essential for the efficient and cost-effective delivery of health-care services. The provider’s administrative structure and external environment can substantially influence adopting technologies involving inter-organizational linkages, such as HIE. Using the theoretical lens of institutional theory, this study aims to compare how public and private hospitals' engagement in HIE is influenced by corruption and government online services or e-government usage.

Design/methodology/approach
The study uses the positivist research design of secondary data analysis to test the six hypotheses proposed. Data from multiple third-party reliable sources, including the European Commission and World Bank, are combined into the final dataset consisting of observations from 1,442 hospitals across 30 countries in Europe. A multilevel modeling approach is used to associate country and hospital-level variables and test the hypothesis.

Findings
The study finds that, on average, a 10% increase in corruption leads to a 6.3% decrease, while a 10% increase in e-government leads to a 7% increase in the probability of HIE engagement for a hospital. The negative impact of corruption on average is 18% more in public than private hospitals, while the positive impact of e-government is 75% stronger in public in comparison to private hospitals. The study also finds that HIE engagements in health systems with predominantly public hospitals are more sensitive to corruption and e-government.

Originality/value
To the best of the authors’ knowledge, the study is one of the first to use the institutional view to test the influence of government actions and public providers' concentration on HIE engagement. The comparison of public and private institutions enriches our understanding of promoters and inhibitors of HIE.
Transcatheter arterial embolisation for the relief of shoulder and elbow chronic joint pain refractory to conventional treatment: Systematic review
Authors: Aly Mohamed , Fashina Chelsea , Hagiga Ahmed , Hafez Ahmed , Di Mascio Livio 
Published: October 2023

AbstractAngiogenesis and accompanying nerve fibres might cause unsettling joint pain. Studies have suggested that transcatheter arterial embolisation (TAE) of these abnormal neovessels could relieve pain and symptoms in patients with upper limb joint pain refractory to conventional treatment. This study aims to investigate the efficacy and safety of TAE in treating chronic pain of shoulder and elbow joints that have been resistant to other treatments. Using six databases, a systematic review was performed following Preferred Reporting Items for Systematic Reviews and Meta‐analyses (PRISMA) guidelines. The primary outcome involved changes in the visual analogue scale (VAS) after TAE; while secondary outcomes involved comparing other parameters where relevant. Average VAS decreased from baseline, then at 1 day, 1 week, 1 month, 3 months, 4 months, 6 months, 1 year, 2 years and 44 months (7.5 at baseline vs. 4.7, 4.3, 3.4, 2.1, 2.5, 1.2, 0.7, 1.1 and 0.1, respectively). Average Quick‐DASH scores decreased from baseline, then at 1, 3 and 6 months (61.3 at baseline vs. 30.6, 19.3 and 6.9, respectively). Minor adverse events were reported in 27/143 (18.9%) patients, where they resolved spontaneously or with oral analgesia. TAE is a possible treatment option for refractory shoulder and elbow joint pain; however, randomised controlled trials are still required.
Effects of simultaneous and sequential mixed fermentation of non‐Saccharomyces strains and a Saccharomyces cerevisiae strain on the fermentation process and volatile compounds of Mijiu
Authors: Li Rou , Xu Yan , Wang Dong 
Published: October 2023

SummaryThe combined use of non‐Saccharomyces yeasts and Saccharomyces cerevisiae in mixed fermentation is considering as a potential way to improve the flavour characteristics of Mijiu (a traditional rice wine in China). In this study, we investigated the effects of mixed fermentation, including simultaneous and sequential inoculation fermentation, of typical non‐Saccharomyces yeast strains (Saccharomycopsis fibuligera; Candida glabrata) and an S. cerevisiae strain on the fermentation process and volatile compounds of Mijiu. The results showed that the fermentation rate of Mijiu was improved by the simultaneous inoculation fermentation of different non‐Saccharomyces yeasts and S. cerevisiae. However, the increase of volatile compounds in the simultaneous inoculation fermentation depended on non‐Saccharomyces yeast species, although the positive contribution of non‐Saccharomyces yeasts to volatile compounds of Mijiu was confirmed in their pure fermentation. The sequential inoculation fermentation significantly enhanced the content or complexity of volatile compounds of Mijiu but with low‐fermentation rate. This could be attributed to the change of the number of non‐Saccharomyces yeast cells during the mixed fermentation possibly caused by the inhibition of S. cerevisiae with high concentration on non‐Saccharomyces yeasts. Our work provided useful information on the mixed inoculation fermentation strategy combining suitable non‐Saccharomyces yeasts and S. cerevisiae for improving the fermentation rate and the aroma quality of Mijiu.
Improving gelling properties of fish gelatin by γ‐polyglutamic acid with four different molecular weights
Authors: Shu Sheng , Sha Xiao‐Mei , Hu Zi‐Zi , Ma Qing‐Ling , Qiao Juan‐Juan , Fang Ting , Jiang Wen‐Li , Tu Zong‐Cai 
Published: October 2023

SummaryThis work investigated gelling properties and structural characteristics of fish gelatin (FG) modified by four different molecular weights of γ‐polyglutamic acid (γ‐PGA) with 700, 1000, 2000 and 3000 kDa, respectively. Gelation‐melting transition temperature and gel strength increased with the increase of molecular weight in γ‐PGA. Especially, γ‐PGA in 3000 kDa made gel strength, gelation and melting temperatures reaching to 628.08 g (P < 0.05), 22.30 °C and 30.17 °C (P < 0.05), respectively. Non‐covalent interactions existed in FG and γ‐PGA. Such as, new hydrogen bonds were generated between them. Moreover, γ‐PGA with increased molecular weight enhanced three‐stranded helical structure and microscopic meshwork of FG. Finally, a schematic model was described to illustrate the interaction between FG and γ‐PGA in different molecular weights. On the whole, γ‐PGA with high molecular weight significantly improved gelling properties of FG, and could be a potential modifier of FG in the future.
Horizontal transmission of Metarhizium brunneum conidia from sporulating cadavers to Agriotes obscurus adults
Authors: Janmaat Alida F. , Hinz Chris , Kabaluk Todd , Cory Jenny S. 
Published: October 2023

AbstractThe application of fungal entomopathogens, such as Metarhizium brunneum, has the potential to continue to impact targeted host populations through secondary cycling. In the present study, we examined the horizontal transmission of M. brunneum conidia from conspecific mycosed cadavers or soil on which the cadavers sporulated to Agriotes obscurus beetles. Close contact between the susceptible hosts and sporulating cadavers or contaminated soil was required for increased mortality of hosts and subsequent production of mycosed cadavers.
Green industrial policy, information asymmetry, and repayable advance
Authors: Meunier Guy , Ponssard Jean‐Pierre 
Published: October 2023

AbstractThe energy transition requires the deployment of risky research and development programs, most of which are partially financed by public funding. Recent recovery plans, associated with the COVID‐19 pandemic and the energy transition, increased the funding available to finance innovative low‐carbon projects and called for an economic evaluation of their allocation. This paper analyzes the potential benefit of using repayable advance: a lump‐sum payment to finance the project that is paid back in case of success. The relationship between the state and innovative firms is formalized in the principal‐agent framework. Investing in an innovative project requires an initial observable capital outlay. We introduce asymmetric information on the probability of success, which is known to the firm but not to the state agency. The outcome of the project, if successful, delivers a private benefit to the firm and an external social benefit to the state. In this context a repayable advance consists in rewarding failure. We prove that it is a superior strategy in the presence of pure adverse selection. We investigate under what conditions this result could be extended in the presence of moral hazard. Implications for green industrial policy are discussed.
Body‐worn cameras and representation: What matters when evaluating police use of force?
Authors: Wright James E. , Gaozhao Dongfang , Houston Brittany 
Published: October 2023

AbstractPublic administration scholarship seeks to understand ways to increase accountability within the policing profession. We employ an online conjoint experiment to disentangle the effects of both representation and body‐worn cameras (BWC) on police accountability and legitimacy. In the experiment, we ask participants to rate the likelihood that a police use of force incident prompts an investigation when there is a BWC present and racial and gender representation matches between the officer and the civilian in the use of force incident. We find that Caucasian officers who use force are more likely to be investigated. Our findings also reveal that civilians believe male officers who use force should be investigated and there is no need for further investigation when a BWC is utilized during a use of force situation. The implications of this study show that civilians view BWCs as the most important tool in providing accurate and honest assessment of police‐civilian encounters.
Does collective citizen input impact government service provision? Evidence from SeeClickFix requests
Authors: Schiff Kaylyn Jackson 
Published: October 2023

AbstractDoes collective citizen input impact government priorities and performance in service provision? As cities increasingly offer interactive issue reporting options through online platforms and mobile apps, I investigate whether comments and follows on requests drive faster issue resolution. I theorize that this input signals issue validity, severity, or scrutiny, assisting city administrators in prioritizing and responding to requests. Leveraging a novel dataset of requests from 100 cities, I find that comments and follows double the probability of request closure and that collaborative requests are resolved up to 5 days faster on average than non‐collaborative requests. By comparing two cities that use the same platform but that differ in the observability of citizen collaboration, I isolate a distinct and significant influence of collective citizen input on government responsiveness. The findings speak to how technological advances enable information‐sharing from citizens that can shape service delivery rules and outcomes.
‘Feeling out’ the rules: A psychological process theory of red tape
Authors: Davis Randall S. , Pandey Sanjay K. 
Published: October 2023

AbstractOver the past 30 years, red tape has emerged as a key concept in public management. Yet, researchers continue to debate the relative merits of system‐centric versus individual‐centric approaches. In this article, we articulate an individual‐centric psychological process theory, a theory that confronts the ‘modularity assumption’ relegating the subjective individual experience as inconsequential in much red tape research. We theorize that the appraisal mechanism influences the meaning attached to external compliance demands. Our process theory advances the claim that experience, emotion, and expectancy influence one's perceptions of, and behavioral response to, red tape. Thus, compliance expectations in rules are informed by other social demands embedded in roles, identities, and collective interests in ways that influence the perceived legitimacy of rules and the compliance burdens they impose. The psychological process theory offers a holistic perspective on red tape by treating the subjective individual experience as consequential for understanding red tape.
It's not merely about the content: How rules are communicated matters to administrative burden
Authors: Baekgaard Martin , Döring Matthias , Thomsen Mette Kjærgaard 
Published: October 2023

AbstractResearch suggests that citizens often abstain from taking up benefits for which they are eligible because of the costs of learning about how to apply for and the compliance and psychological costs associated with taking up benefits. But to what extent can such burdens be altered simply by changing the way rules are communicated? Bridging literatures on administrative burden, communication theory, and cognitive psychology, we theorize and test the causal impact (using a pre‐registered randomized survey experiment (N = 2243)) of two prominent aspects of rule communication: information structure and bureaucratic language. Our findings lend support to the expectation that bureaucratic language influences citizens' learning costs as well as their compliance – and to a lesser extent psychological – costs, even when the content of the rules communicated is the same.
A primary oral mucosal melanoma of the hard palate with no recurrence: Report of a 10 years follow‐up
Authors: Correia‐Neto Ivan José , Correa Marcelo Brum , Araújo Anna Luíza Damaceno , Penafort Paulo Victor Mendes , Colafemina Ana Carolina Evangelista , Elias Rogério de Andrade , Santos‐Silva Alan Roger , Vargas Pablo Agustin , Lopes Márcio Ajudarte 
Published: October 2023

AbstractBackgroundPrimary oral mucosal melanoma (OMM) represents an extremely rare and aggressive tumor that arises from malignant transformation and clonal expansion of melanocytes in the oral cavity. The prognosis of patients affected by OMM is quite unfavorable, with survival rates lower than those described for patients with cutaneous melanoma.Case reportHere, we report a case of OMM in a 59‐year‐old Caucasian woman, who was referred for evaluation of a large asymptomatic pigmented lesion on the left side of the hard palate under the removable total denture. Incisional biopsy was performed, and histopathological analysis revealed the proliferation of spindle‐shaped and pigmented epithelioid cells, with cellular pleomorphism. These cells were positive for Melan A, S‐100, HMB‐45, SOX‐10, and Ki‐67 confirming the diagnosis of OMM. The patient underwent partial maxillectomy and adjuvant radiotherapy. After treatment, she was rehabilitated with a palatal obturator prosthesis and has been in follow‐up for 10 years with no evidence of disease. Due to the rarity in the oral cavity and the nonspecific signs and symptoms, the diagnosis of OMM is difficult and often overlooked.ConclusionTherefore, multidisciplinary management from diagnosis, treatment, and rehabilitation is important to increase the expectation of cure.
Development of a Hydrogen Micro Gas Turbine Combustor: Atmospheric Pressure Testing
Authors: Tanneberger Tom , Mundstock Johannes , Rex Christoph , Rösch Sebastian , Paschereit Christian Oliver 
Published: October 2023

Abstract
The vision of a carbon-neutral world implies the shift from fossil to clean fuels for combustion-driven processes and machines like gas turbines. Green hydrogen is a promising alternative to substitute natural gas and other fossil fuels. In the H2mGT project, funded by the German BMWK, a microgas turbine (mGT) burner with 100% hydrogen firing is developed and validated. The project is collaboration between Technische Universität Berlin (TUB) and the manufacturer Euro-K GmbH. The project consists of three phases: (1). Atmospheric pressure tests with a fused silica combustion chamber; (2). Atmospheric pressure tests with counterflow-cooled steel combustion chamber and secondary air injection; (3). Validation of the burner in the micro gas turbine at elevated pressure levels. This paper will present the results of Phase 1. The hydrogen burner is based on a swirl-stabilized burner of TUB and was scaled to match the requirements of the mGT with its 130 kW thermal power. The burner design features multiple geometrical parameters to enable the optimization of the flame towards low NOx emissions. Therefore, a variable swirl intensity, additional axial momentum of air in the mixing tube, a movable center-body and different fuel injection locations are implemented. Phase 1 investigates the parameter space in terms of flame stability, operational range, and parameter impact on flame shape and emissions. Therefore, temperature, pressure, and emission measurements as well as OH* imaging are carried out. It is found that the flame can be operated over a large range of equivalence ratios and preheating temperatures up to 500 ∘C for many parameter settings. However, at some configurations, flashback into the mixing tube is triggered. As expected, the NOx emissions are mainly influenced by the equivalence ratio, the fuel distribution, and the swirl intensity. Single-digit emissions are reached up to an equivalence ratio of 0.4 at atmospheric pressure conditions. Furthermore, at low air mass flow, the burner can be operated at 100% natural gas or 100% hydrogen without any geometry changes. The fuel switch, thereby, does not change the NOx emissions significantly if reasonable normalization is used.
Kinetic- and Strain-Energy Approaches in the Thermal Analysis of Constrained Mechanical Systems: A Comparative Study
Authors: Abdalla Moataz , Shabana Ahmed A. 
Published: October 2023

Abstract
Despite the unconstrained thermal expansion is assumed stress-free, the conventional FE approach requires formulating elastic forces, and this in turn leads to elastic stresses. A displacement-based formulation, on the other hand, can be used to address this limitation by converting the thermal energy to kinetic energy instead of strain energy. The fundamental differences between the strain- and kinetic-energy approaches are discussed. It is shown that the unconstrained thermal expansion predicted using the kinetic-energy approach is independent of the continuum constitutive model, and consequently, such a formulation can be used for both solids and fluids. The displacement (kinetic) and strain (stress) formulations are discussed to shed light on the mechanism of thermal expansion at the macroscopic level. The thermal-expansion displacement formulation (TEDF) and position-gradient multiplicative decomposition into thermal and mechanical parts are used to compute the thermal stresses due to boundary and motion constraints (BMC). TEDF implementation issues are discussed and constant matrices evaluated at a preprocessing stage after applying sweeping matrix technique to eliminate rigid-body thermal-displacement translational modes are identified. Furthermore, the softening effect due to the constitutive-model dependence on the temperature is investigated at high temperatures. Numerical results are presented to show fundamental differences between the TEDF approach that converts heat energy to kinetic energy and conventional FE approach that converts heat energy to strain energy that produces elastic stresses.