bluuebunny/crossref_metadata_2025_split huggingface dataset:
Regulation of the mouse ventral tegmental area by melanin-concentrating hormone
Authors: Spencer C Duncan , Miller Persephone A , Williams-Ikhenoba Jesukhogie G , Nikolova Ralitsa G , Chee Melissa J 
Published: September 2023

AbstractMelanin-concentrating hormone (MCH) acts via its sole receptor MCHR1 in rodents and is an important regulator of homeostatic behaviors like feeding, sleep, and mood to impact overall energy balance. The loss of MCH signaling by MCH or MCHR1 deletion produces hyperactive mice with increased energy expenditure, and these effects are consistently associated with a hyperdopaminergic state. We recently showed that MCH suppresses dopamine release in the nucleus accumbens, which principally receives dopaminergic projections from the ventral tegmental area (VTA), but the mechanisms underlying MCH-regulated dopamine release are not clearly defined. MCHR1 expression is widespread and includes dopaminergic VTA cells. However, as the VTA is a neurochemically diverse structure, we assessedMchr1gene expression at glutamatergic, GABAergic, and dopaminergic VTA cells and determined if MCH inhibited the activity of VTA cells and/or their local microcircuit.Mchr1expression was robust in major VTA cell types, including most dopaminergic (78%) or glutamatergic cells (52%) and some GABAergic cells (38%). Interestingly, MCH directly inhibited dopaminergic and GABAergic cells but did not regulate the activity of glutamatergic cells. Rather, MCH produced a delayed increase in excitatory input to dopamine cells and a corresponding decrease in GABAergic input to glutamatergic VTA cells. Our findings suggested that MCH may acutely suppress dopamine release while disinhibiting local glutamatergic signaling to restore dopamine levels. This indicated that the VTA is a target of MCH action, which may provide bidirectional regulation of energy balance.Significance StatementRole of melanin-concentrating hormone (MCH) on energy balance may converge on the dopamine system via the mesolimbic pathway, as loss of MCH or MCH receptor (MCHR1) signaling increases hyperactivity and energy expenditure associated with a hyperdopaminergic state. MCH can suppress dopamine release within the mesolimbic pathway, but its underlying mechanism is not known. We thus determined if MCH could inhibit dopamine release through direct actions within the ventral tegmental area (VTA). We found that MCH directly inhibited dopaminergic VTA cells, but MCH also disinhibited excitatory input to dopamine cells. Therefore, we showed that the VTA is a putative target site supporting dopamine-dependent actions of MCH.
Comparison of damping techniques in non-linear spring-mass systems for power transformers under short-circuit condition
Authors: Koczka Gergely , Leber Gerald 
Published: September 2023

Purpose
The simplified modeling of many physical processes results in a second-order ordinary differential equation (ODE) system. Often the damping of these resonating systems cannot be defined in the same simplified way as the other parameters due to the complexity of the physical effects. The purpose of this paper is to develop a mathematically stable approach for damping resonances in nonlinear ODE systems.

Design/methodology/approach
Modifying the original ODE using the eigenvalues and eigenvectors of a linearized state leads to satisfying results.

Findings
An iterative approach is presented, how to modify the original ODE, to achieve a well-damped solution.

Practical implications
The method can be applied for every physical resonating system, where the model complexity prevents the determination of the damping.

Originality/value
The iterative algorithm to modify the original ODE is novel. It can be used on different fields of the physics, where a second-order ODE is describing the problem, which has only measured or empirical damping.
Case study on the construction path of olfactory space in Jiangsu University Library
Authors: Yu Yingying , Su Wencheng , Liu Guifeng 
Published: September 2023

PurposeThis article explores the scientific construction of library olfactory space, based on the case of the olfactory space in the Jiangsu University library. It specifically focuses on understanding the interaction between the physical architectural space of the library and users’ olfactory perception and behavioral activities, with the ultimate goal of creating a deeply integrated olfactory experience in the Jiangsu University Library.Design/methodology/approachIn this article, an empirical research method was used to gather perceptions from 30 university student users regarding the library olfactory space and to understand their olfactory preferences and requirements for its construction. Through qualitative analysis of the interview texts, the study identified correlations between user perceptions and elements of the library olfactory space.FindingsThe qualitative analysis of user interview texts and results from the library olfactory space design experiment contributed to the design proposal for the Jiangsu University Library olfactory space. The design proposal for the Jiangsu University Library olfactory space is provided and includes library architecture, activity context, functional services, olfactory experience design and technological applications.Research limitations/implicationsThis case study takes the environment, development strategy and user needs of the Jiangsu University Library as its unique research background and as such is not universal or generalizable to other libraries.Originality/valueThis article differs from others by advocating for the innovative architectural spatial design of libraries through olfactory experience, breaking the traditional perception of libraries as solely through visual and auditory senses.
Intention to use technology for micro-credential programs: evidence from technology acceptance and self-determination model
Authors: Miao Miao , Ahmed Mansoora , Ahsan Noman , Qamar Bushra 
Published: September 2023

PurposeThe study aims to investigate students' attitudes toward using technology for micro-credential programs (MCPs) and their behavioral intention toward using MCPs for learning and enhancing their skills. The study also intends to investigate the moderating influence of labor market conditions (LMC).Design/methodology/approachA closed-ended questionnaire is employed to collect data from 474 participants through a convenience sample, from the university students in Karachi. Two theoretical frameworks are used in the study: technology acceptance model (TAM) and self-determination theory (SDT). The partial least squares structural equation modeling (PLS-SEM) technique is used to analyze data.FindingsFindings reveal significant and positive relationships between all variables, except controlled motivation (CM) and perceived challenges. Moreover, the moderation results ascertain that the labor market does not moderate the relationship between attitude toward using technology for MCPs and students' behavioral intention toward using MCPs for learning.Originality/valueThe study seeks to understand students' attitudes and behavioral intentions toward using technology for MCPs. Also, the moderating effect of LMC is highlighted in understanding the impact of the attitude to use technology (AT) for MCPs and behavioral intentions in higher educational institutions (HEIs) in Pakistan. The study highlights intuitive practical implications for students of HEIs, universities and digital credential program providers.
Global responsible leadership traits and employee sustainable performance in Malaysia: a gender comparative analysis
Authors: Chin Chee Hua , Sim Siew Chen , Thong Jun Zhou , Chin Ying Sin 
Published: September 2023

Purpose
This study aims to address existing gaps in the literature and theories by investigating the influence of responsible leadership traits on employees’ sustainable performance (E-SuPer) in the Malaysian service sector. Specifically, the authors focus on three key responsible leadership traits: relationship building, relational governance and sharing orientation. Additionally, the authors explore how these traits interact with leader-member exchange (LMX) and whether gender plays a role in this relationship.

Design/methodology/approach
A total of 235 usable responses were analysed using partial least squares structural equation modelling. Multi-group analysis (MGA) was employed to examine the moderating impact of gender.

Findings
The results showed that both relationship building and relational governance significantly affect E-SuPer among organisations in the service industry. LMX was found to be a significant moderating condition influencing the association between responsible leaders’ sharing orientation and E-SuPer. Interestingly, the MGA results suggest that the effect on male employees was greater than on female employees across the relationships examined. The findings suggest that responsible leadership traits are essential for sustainable employee performance, but there is room for improvement in how these traits are perceived by female employees.

Social implications
The present study contributes to gender equality agenda, supports the sustainable development goals, adds to the growing body of knowledge on the relationship between responsible leadership traits and E-SuPer within one of the most important economic sectors in Malaysia and sheds lights on the moderating effect of LMX.

Originality/value
This study investigates how responsible leadership traits affect E-SuPer in the service industry, particularly among male and female employees. Moreover, this study is one of the early investigations into the significance of responsible leadership within Malaysian service sector and offers valuable information for industry actors to improve their management approaches.
Predicting hotel booking cancelation with machine learning techniques
Authors: Yoo Myongjee , Singh Ashok K. , Loewy Noah 
Published: September 2023

Purpose
The purpose of this study is to develop a model that accurately forecasts hotel room cancelations and further determines the key cancelation drivers.

Design/methodology/approach
Predictive modeling, specifically the machine learning methods, is used to forecast room cancelations and identify the main cancelation factors.

Findings
By using three different classification algorithms, this study demonstrates that hotel room cancelation can be accurately predicted using XGBoost, as well as the ensemble method involving Support Vector Machine, Random Forest and XGBoost.

Originality/value
This study attempted to forecast hotel room cancelations by applying a relatively new method, machine learning. By implementing predictive modeling, one of the most emerging and innovative research methods, this study ultimately provides prediction suggestions in various aspects and levels for hotel management operations.
Are we making progress in developing knowledge management strategies that support organizational performance?
Authors: Kaushal Sanjay , Nyoni Austin Milward , Sharma Aarti 
Published: September 2023

PurposeThe purpose of the present study is to establish the emerging trend of studies on knowledge management (KM) strategy from 2007 to 2021 and identify the most studied constructs, methodologies used and gaps, thereby suggesting future directions.Design/methodology/approachGuided by items on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework, the study analyzed 46 articles published within the 15 years under review.FindingsAn upward trend in KM strategy studies published from 2007 to 2021 emerged, indicating researchers' growing interest in the topic. Further, the studies reaffirmed the essence of having a KM strategy alongside other functional strategies for an organization's outstanding performance. Key KM strategy antecedents were identified: resource availability, communication, business environment, stakeholder participation, organizational culture and incentives. The need to align the KM strategy and other functional strategies with the overall business strategy was also established as critical. Finally, gaps in study methodologies and extant literature were identified, leading to suggestions for future directions.Originality/valueThe study provides valuable insights regarding the emerging trend of studies on KM strategy over the 15 years, identification of methodologies used in the studies and the most studied constructs. To this effect, the study's uniqueness lies in the identified gaps and recommendations made for future research directions as it strives to bridge the identified gaps.
Appraisal of solid waste generation in secondary schools towards sensitisation on environmental quality and education
Authors: Adeniyi Lateef Adeleke , Oladehinde Gbenga John , Oladipupo Abiola Stephen , Adesoye Peter Oluyemi , Folorunso Sikiru Akintunde 
Published: September 2023

PurposeThis study evaluates the quantity and composition of solid waste produce in secondary schools and assesses level of environmental consciousness and management activities. This is aimed for the present and future planning of high schools' environment as well as integrating the system into urban waste management.Design/methodology/approachThis research used primary and secondary data to realize its purpose. Primary data was obtained through measurement of actual waste generation and questionnaire administration. Secondary data was the official information obtained on the schools selected. The primary data collected was analysed with descriptive statistical method such as percentage, mean cross measures of central tendency, frequency distribution and cross tabulation.FindingsThe study established that a total of 375.6 kg of solid waste is generated in the selected schools and daily per capita waste generation is 0.56 kg. Paper material is the waste component with the highest quantity and 88.5% of waste produced is recyclable. Thus, solid waste generated in secondary schools if carefully managed with suitable management options has potential for promoting circular economy and sustainable development. The paper recommends environmental education for stakeholders in secondary schools and waste segregation culture should be enforced in every secondary school.Originality/valueThe paper builds on the reasons for poor environmental quality in secondary schools in developing countries and revealed unscientific means by which resources are wasted and the environment is mismanaged through low understanding of solid waste.
Ethics of care: pedagogical encounters from Oceania
Authors: MacGill Belinda Mary , Jattan Sangeeta , Lal Dropati , Narain Babra , Neill Bec , Nayaca Teupola , Diamond Alexandra , Camaitoga Ufemia 
Published: September 2023

PurposeThe purpose of this paper is to explicate the links between public pedagogy, ethics of care and storying as a methodology and method in Oceania.Design/methodology/approachThis paper explores the role of extended families as First Teachers in iTaukei and Indo-Fijian Early Childhood contexts in Fiji. Using storying as methodology, the authors, three Australian and four Fijian academics, present three portraits to make visible the pedagogical entanglements of public pedagogy research in diverse community contexts. These portraits reveal the intersection and integration of extended family with the authors' community–family–child–informed pedagogical approaches, and the advantages of culturally located standpoints when working with iTaukei and Indo-Fijian communities. This article's unique contribution lies in its demonstration of the importance of an ethics of care approach in site-specific and contextually emerging pedagogical encounters.FindingsThe findings demonstrate the traditional role of First Teachers and carers in iTaukei and Indo-Fijian Early Childhood contexts in Fiji who use arts-based approaches to teaching and learning within a public pedagogical framework.Research limitations/implicationsThe implications of the research highlight the need to address policy interventions that disrupt the value of First Teachers in community context and their role in values formations for young people in community.Practical implicationsThe implications of the research can be addressed at the policy and international level where considerations of educational arrangements need to be understood.Social implicationsThe social implications of this publication are the value of iTaukei and Indo-Fijian Early Childhood educators in Fiji, and their voices being heard and understood via a published academic journal.Originality/valueThis work is original and is a collaborative paper written between Australian and iTaukei and Indo-Fijian Early Childhood educators.
Effects of local density dependence and temperature on the spatial synchrony of marine fish populations
Authors: Marquez Jonatan F. , Herfindal Ivar , Sæther Bernt‐Erik , Aanes Sondre , Salthaug Are , Lee Aline Magdalena 
Published: September 2023

Abstract

Disentangling empirically the many processes affecting spatial population synchrony is a challenge in population ecology. Two processes that could have major effects on the spatial synchrony of wild population dynamics are density dependence and variation in environmental conditions like temperature. Understanding these effects is crucial for predicting the effects of climate change on local and regional population dynamics.

We quantified the direct contribution of local temperature and density dependence to spatial synchrony in the population dynamics of nine fish species inhabiting the Barents Sea. First, we estimated the degree to which the annual spatial autocorrelations in density are influenced by temperature. Second, we estimated and mapped the local effects of temperature and strength of density dependence on annual changes in density. Finally, we measured the relative effects of temperature and density dependence on the spatial synchrony in changes in density.

Temperature influenced the annual spatial autocorrelation in density more in species with greater affinities to the benthos and to warmer waters. Temperature correlated positively with changes in density in the eastern Barents Sea for most species. Temperature had a weak synchronizing effect on density dynamics, while increasing strength of density dependence consistently desynchronised the dynamics.

Quantifying the relative effects of different processes affecting population synchrony is important to better predict how population dynamics might change when environmental conditions change. Here, high degrees of spatial synchrony in the population dynamics remained unexplained by local temperature and density dependence, confirming the presence of additional synchronizing drivers, such as trophic interactions or harvesting.
Distribution and ecology of the generalist lactic acid bacterium Carnobacterium maltaromaticum in different freshwater habitats: Metabolic and antagonistic abilities
Authors: Tang Taya , Martinenghi Laura Daniela , Hounmanou Yaovi Mahuton Gildas , Leisner Jørgen J. 
Published: September 2023

AbstractWe explored the distribution, metabolic and antagonistic activities of Carnobacterium maltaromaticum, isolated from freshwater locations in Denmark during winter or early spring. This species was widely distributed in such habitats although it was relatively rare in low pH locations. Isolates possessed a diverse metabolism, potentially enabling functional capacities independent of habitat. The intraspecies competition showed a relatively high degree of mostly low‐intensity interactions, which overall were not correlated with phylogeny or location. Only a few isolates exhibited broad‐spectrum inhibition activity, targeting species from other genera and families, including one isolate that exhibited a broad inhibitory activity due to H2O2 production. Bioinformatic analyses revealed that the frequency of bacteriocinogenic systems was low, and only one unmodified bacteriocin, piscicolin 126, correlated with phenotypic antagonistic activity. Furthermore, most potential bacteriocin gene complexes were not complete. Overall, this study showed C. maltaromaticum to be a generalist (nomadic) species with a constant presence in freshwater habitats, especially those with pH values >5. General metabolic properties did not suggest a strong degree of adaptation to the freshwater environment, and bacteriocin‐mediated antagonistic activities appeared to play a minimal ecological role.
Risk of recurrent red‐cell transfusion in delivery: A nationwide longitudinal study
Authors: Brynolf Anne , Sandström Anna , Edgren Gustaf 
Published: September 2023

AbstractObjectiveTo investigate the risk of recurrent maternal red‐cell transfusion in delivery.DesignNationwide long‐standing retrospective cohort study.SettingSwedish medical birth register.PopulationAll registered births from 2000 to 2017 in Sweden.MethodsWe included all women with between one and three consecutive registered births from 22 weeks of gestation onwards and all maternal red‐cell transfusions in the peripartum period within the defined period of study. Information on gestational and non‐gestational comorbidity was collected and we identified any female siblings. In our analyses we compared the risk of red‐cell transfusion in delivery in relation to transfusion history and gestational and non‐gestational comorbidity.Main outcome measuresMaternal peripartum red‐cell transfusion, defined as a recorded transfusion in the period from 1 day before and 7 days after delivery.ResultsWe included 825 451 women with a total 1 419 909 deliveries, including 786 097 (55.4%) first, 511 398 (36.0%) second and 122 414 (8.6%) third deliveries. Of women with previous obestric transfusion, 8.7% were transfused in a second delivery, compared with 1.7% of women without transfusion or diagnosis of haemorrhage. A previous diagnosis of haemorrhage did not affect the odds ratio of transfusion recurrence. Among women who were transfused in their first two deliveries, 15.5% were transfused in third delivery, corresponding to an 11‐fold increase, compared with non‐transfused women (adjusted odds ratio aOR 11.5, 95% CI 7.9–16.6). Women with a sister transfused in delivery were at increased risk of transfusion in a second delivery (aOR 1.8, 95% CI 1.6–2.1).ConclusionsWomen with previous red‐cell transfusion are at an increased risk of red‐cell transfusion in a subsequent delivery, compared with women without a history of red‐cell transfusion.