bluuebunny/crossref_metadata_2025_split huggingface dataset:
A systematic literature review on the relationship between servant leadership and its team and organizational level outcomes
Authors: Lu Jin , Falahat Mohammad , Cheah Phaik Kin 
Published: November 2023

PurposeThis study aimed to develop an in-depth understanding of the outcomes of servant leadership at the team and organizational levels. It reviews the relationship between servant leadership and its team- and organizational-level outcomes, and examines the mediation and moderation effect of the relationship. It further identifies the mechanism by which servant leadership is beneficial to the organization.Design/methodology/approachA systematic literature review is conducted, focused on 52 articles published between 2012 and 2022. Content analysis and descriptive analysis were used to respond to the research questions.FindingsA new conceptual model was developed to better understand the outcomes, mediators and moderators of servant leadership at team and organization level.Research limitations/implicationsFuture research should further explore outcomes of servant leadership at team and organizational levels and test how mediators affect the relationship between servant leadership and associated outcomes.Practical implicationsThis study provides a framework for leaders on how servant leadership contributes to teams and organizations, and how a leader applies servant leadership.Originality/valueThis systematic review presents a new model that builds on existing research into servant leadership and its impact on team and organizational levels completed in the past decade. To date, there have been no reviews of servant leadership that focus only on outcomes at the team and organizational levels using a widely recognized database.
Listening to unheard voices: exploring salespeople’s perspectives on the value of corporate heritage
Authors: Al-Amad Amjad H. , Ali Sa’ad , Al-Haddad Hadeel B. 
Published: November 2023

Purpose
This study aims to examine salespeople’s perspectives on the value of corporate heritage to relationship selling and the issue of trust in personal selling situations in the context of emerging markets.

Design/methodology/approach
An interpretive approach was adopted, and 16 semi-structured interviews were conducted with senior salespeople in heritage institutions operating in Jordan.

Findings
This study reveals that corporate heritage is a valuable organizational resource for relationship selling. Reflecting the values of “trust” and “affinity,” corporate heritage confers trust to salespeople and their products in personal selling situations. Sales managers are advised to use corporate heritage to strengthen sales activities and empower salespeople.

Originality/value
While previous research has explained the significance of corporate heritage to relationship marketing, the significance of corporate heritage to relationship selling and the issue of trust in personal selling situations remain unexplored. Jordan represents a context that has been largely neglected despite being typical of the corporate heritage phenomenon.
Agency motives and the corporate diversification decision: perspectives of corporate executives in Nigeria
Authors: Ibekwe Ibeawuchi 
Published: November 2023

Purpose
The purpose of this study was to explore the motives (especially the agency motives) for corporate diversification from the perspective of corporate executives who make such strategic decisions and manage the diversified firms daily.

Design/methodology/approach
A qualitative research approach was adopted, and 12 chief executive officers (CEOs) of diversified firms in Nigeria were interviewed for their perspectives on the motives for corporate diversification.

Findings
Stewardship motives – diversification to use excess capacities in assets and resources to exploit opportunities in the market and defend against adverse environmental developments – were the most cited reasons for diversification. The relevant agency problem related to corporate diversification motive in Nigeria is the principal–principal (majority shareholder-minority shareholder) one. CEOs with substantial holdings in their firms indicated that they use diversification to reduce their investment risk and retain control of their portfolio.

Practical implications
The findings suggest that in corporate environments such as Nigeria that feature blockholding prominently, the corporate strategy-related agency problem that policymakers should pay greater attention to is the principal–principal conflict rather than the traditional agent–principal problem that has influenced corporate governance over the years. There is also a need to revise the dominant view that diversification is a value-destroying strategy motivated by the self-seeking behavior of managers who have little or no shares in the companies they manage.

Originality/value
The few studies on motives for corporate diversification that incorporated the perspectives of corporate executives did not address the agency motives of diversification. To the best of the authors’ knowledge, this is the first study that has done so.
Juxtaposition, encounter and drift: transformative social innovation through culture and the arts
Authors: Kruglanski Aviv 
Published: November 2023

PurposeThis paper aims to tentatively explore the benefits of placing art’s knowledge-building tradition, with its capacity to disrupt and reframe, at the centre of how we look at alternative organizing and alternative economic spaces, positioning lived experience, its uncertainties intact, at the heart of researching and practicing social enterprise (SE).Design/methodology/approachThe paper explores indeterminacy through two case-study narratives, one of an academic arts-based research project and the other of a unique organization it encountered.FindingsThe paper describes the way juxtaposition, encounter and drift value indeterminacy as central to generative processes, challenging the control central to management and its research.Research limitations/implicationsThe paper proposes that adopting an arts-based approach that challenges control can create a research instrument sensitive to similar tendencies in case studies, thus highlighting what is different and alternative about them. This responds to concerns about the diminishing centrality of SE’s democratizing ethic expressed in its scholarship, about creativity in its research and about its socially transformative potential.Practical implicationsThe practice, by SEs of an approach welcoming chance, encounter, meandering paths and place-making with porous boundaries, proliferates transformative possibilities and is linked to democratization and participation.Originality/valueThough dangerously challenging to accepted notions of academic rigour, this paper proposes an unusual thought experiment tied in with lived experiences, in themselves experimental in practice.
Temperature and current density prediction in solder joints using artificial neural network method
Authors: Liu Yang , Xu Xin , Lv Shiqing , Zhao Xuewei , Xue Yuxiong , Zhang Shuye , Li Xingji , Xing Chaoyang 
Published: November 2023

Purpose
Due to the miniaturization of electronic devices, the increased current density through solder joints leads to the occurrence of electromigration failure, thereby reducing the reliability of electronic devices. The purpose of this study is to propose a finite element-artificial neural network method for the prediction of temperature and current density of solder joints, and thus provide reference information for the reliability evaluation of solder joints.

Design/methodology/approach
The temperature distribution and current density distribution of the interconnect structure of electronic devices were investigated through finite element simulations. During the experimental process, the actual temperature of the solder joints was measured and was used to optimize the finite element model. A large amount of simulation data was obtained to analyze the neural network by varying the height of solder joints, the diameter of solder pads and the magnitude of current loads. The constructed neural network was trained, tested and optimized using this data.

Findings
Based on the finite element simulation results, the current is more concentrated in the corners of the solder joints, generating a significant amount of Joule heating, which leads to localized temperature rise. The constructed neural network is trained, tested and optimized using the simulation results. The ANN 1, used for predicting solder joint temperature, achieves a prediction accuracy of 96.9%, while the ANN 2, used for predicting solder joint current density, achieves a prediction accuracy of 93.4%.

Originality/value
The proposed method can effectively improve the estimation efficiency of temperature and current density in the packaging structure. This method prevails in the field of packaging, and other factors that affect the thermal, mechanical and electrical properties of the packaging structure can be introduced into the model.
Addressing the shortage of African American male teachers in minority-serving school districts with innovative partnerships
Authors: Rivers Jesse 
Published: November 2023

PurposeThe paper discusses a partnership between Huston–Tillotson University (HT), a Historically Black College and University (HBCU) and the Austin Independent School District (AISD), a minority-serving school district, both in Austin, Texas, with a grant provided by Apple Inc. (Apple). The purpose of the partnerships is that valuable relationships can increase the number of African American male teachers in primary and secondary education in minority-serving public schools. The African American Male Teacher Initiative (AAMTI) at HT was created as an innovative approach to recruit and select 20 African American males each year of a four-year grant provided by Apple.Design/methodology/approachThis paper reviewed the literature on the lack and need for African American male public school teachers. Once the data is established during a three-to-four-year period, a mixed-method approach will be utilized to examine data retrieved from interviews, surveys, demographics of student participants, numerical data and retention and graduation rates. This will establish whether strategic partnerships can successfully increase the number of qualified African American males in public education.FindingsThis paper proposes and provides research evidence that African American male teachers can positively impact all students in the classroom setting.Research limitations/implicationsThere is limited data to test a hypothesis on the effectiveness of a partnership between the university and public school to increase the number of African American male teachers through recruitment – selection and retention efforts. Therefore, follow-up research is needed for the first graduating class of 2024.Practical implicationsThe broader impact of this paper is to show that partnerships between universities and public schools with corporate sponsorship can positively increase the number of African American male teachers prepared to teach in public schools through strategic recruitment and selection efforts.Social implicationsThis paper can serve as a model for universities and school districts to implement. High placement of prepared Black male teachers in public schools can reduce the school-to-prison pipeline and juvenile homicides and defeat generational poverty.Originality/valueMuch research highlights the problems associated with a lack of African American male teachers. This paper includes the challenges but offers a sound basis for practical solutions.
Genetic mutations in pyoderma gangrenosum, hidradenitis suppurativa, and associated autoinflammatory syndromes: Insights into pathogenic mechanisms and shared pathways
Authors: Satoh Takashi K. 
Published: November 2023

AbstractPyoderma gangrenosum (PG), hidradenitis suppurativa (HS), and the associated autoinflammatory syndromes, including pyogenic arthritis, pyoderma gangrenosum, and acne (PAPA) syndrome, PSTPIP1‐associated myeloid‐related proteinemia inflammatory (PAMI) syndrome, pyoderma gangrenosum, acne, and hidradenitis suppurativa (PASH) syndrome, and pyogenic arthritis, pyoderma gangrenosum, acne, and suppurative hidradenitis (PAPASH) syndrome are dermatological conditions characterized by chronic inflammation and tissue damage. Recent advances in genetic research have identified specific mutations associated with these disorders, shedding light on their underlying pathogenic mechanisms. This review aims to summarize the current knowledge of identified mutations and presumed pathophysiology in PG, HS, and the associated autoinflammatory syndromes.
Functional redundancy of seasonal vitamin B12 biosynthesis pathways in coastal marine microbial communities
Authors: Beauvais Maxime , Schatt Philippe , Montiel Lidia , Logares Ramiro , Galand Pierre E. , Bouget François‐Yves 
Published: November 2023

AbstractVitamin B12 (cobalamin) is a major cofactor required by most marine microbes, but only produced by a few prokaryotes in the ocean, which is globally B12‐depleted. Despite the ecological importance of B12, the seasonality of B12 metabolisms and the organisms involved in its synthesis in the ocean remain poorly known. Here we use metagenomics to assess the monthly dynamics of B12‐related pathways and the functional diversity of associated microbial communities in the coastal NW Mediterranean Sea over 7 years. We show that genes related to potential B12 metabolisms were characterized by an annual succession of different organisms carrying distinct production pathways. During the most productive winter months, archaea (Nitrosopumilus and Nitrosopelagicus) were the main contributors to B12 synthesis potential through the anaerobic pathway (cbi genes). In turn, Alphaproteobacteria (HIMB11, UBA8309, Puniceispirillum) contributed to B12 synthesis potential in spring and summer through the aerobic pathway (cob genes). Cyanobacteria could produce pseudo‐cobalamin from spring to autumn. Finally, we show that during years with environmental perturbations, the organisms usually carrying B12 synthesis genes were replaced by others having the same gene, thus maintaining the potential for B12 production. Such ecological insurance could contribute to the long‐term functional resilience of marine microbial communities exposed to contrasting inter‐annual environmental conditions.
‘Trips are the thing we all remember from our school days’: The learning value of school trips for children with special educational needs from the perspective of primary school teachers
Authors: Wythe Jessica 
Published: November 2023

AbstractVarious childhood and education theorists affirm the benefits of hands‐on and contextual learning opportunities for children and young people. Learners with special educational needs and disability (SEND) often display low levels of engagement. Teachers may utilise innovative pedagogical approaches to increase learning engagement and participation, such as taking their classes on a school trip. This study explores primary school teachers' views of using school trips to enhance learning and development for learners with SEND in the United Kingdom (UK). A questionnaire was distributed through Microsoft Forms, and 54 primary school teachers from the United Kingdom participated in this study. A range of open‐ended and closed questions facilitated the opportunity for the teachers to discuss the benefits and challenges of educational school trips for learners with SEND. The primary school teachers identified extensive affordances of educational school trips, with 100% of participants responding that school trips can have learning and developmental benefits for learners with SEND. Additionally, various skills were identified that the teachers believe school trips facilitate children with SEND to acquire and develop, including social skills. However, the teachers identified challenges and limitations to planning and implementing school trips, including accessibility and socio‐economic barriers.
Derivation of a clinical decision rule to exclude cerebral venous sinus thrombosis in emergency department patients: A retrospective cohort study
Authors: Asha Stephen Edward , Prageshan Janani , Seidman Zachariah 
Published: November 2023

AbstractObjectiveTo derive a clinical decision rule to exclude cerebral venous sinus thrombosis (CVST) in the ED. A secondary aim was to derive a rule that incorporated clinical parameters and the non‐contrast CT brain.MethodsSingle‐centre, retrospective cohort study. Patients suspected of CVST were identified from the radiology database for CT/MR venograms. Clinical features included in the rule were determined by literature review. The presence of these features in participants was determined by chart review. Variables were tested for univariate association with CVST using logistic regression. Variable selection was accomplished using a forward‐stepwise process, calculating the sensitivity/specificity of a rule containing the variable of most significance, then repeating the process after adding the next most significant variable.ResultsForty‐five out of 912 participants had confirmed CVST. The primary clinical rule was answering ‘no’ to all the following: any prothrombotic risk factor, age ≥54 years, confusion: sensitivity 95.6% (95% confidence interval [CI] 84.9–99.5%), specificity 40.9% (95% CI 37.6–44.2%), negative predictive value 99.4% (95% CI 97.9–99.9%) and positive predictive value 7.7% (95% CI 7.1–8.3%). The rule classified 39.5% of participants as CVST ruled out. The rule incorporating the non‐contrast CT brain was answering ‘no’ to all the following: abnormal non‐contrast CT brain, any prothrombotic risk‐factor, age ≥54 years, confusion: sensitivity 100.0% (95% CI 91.6–100.0%), specificity 42.0% (95% CI 38.7–45.4%), negative predictive value 100.0% (95% CI not calculated) and positive predictive value 7.8% (95% CI 7.4–8.2%). The rule classified 40.0% of participants as CVST ruled out.ConclusionsA clinical decision rule was derived to rule out CVST. These results require validation before adoption into clinical practice.
Modelling a two‐stream emergency department segregation and admission system from COVID‐19 early rapid antigen testing: A pilot study
Authors: Johnston Amy , Wong Andy , Appo Casey , Eley Robert , Staib Andrew 
Published: November 2023

AbstractObjectiveMany factors influence patient flow through an ED, including streaming, treatment spaces and staff resources. This pilot study explored and compared real time patient flow using a single‐stream system versus varying configurations of possible two‐stream systems using computer simulation.MethodsSimulation modelling was used to assess the delay in treatment of a rapid‐antigen‐tested‐based, two‐stream model for patient flow through ED during the peak phase of the COVID pandemic.ResultsModelling two‐stream configuration for all patients (minimum time to be seen for both COVID‐positive and COVID‐negative patients) showed that in the case study ED, a two‐stream system and linked changes in bed configuration for managing the risks of infection can impact delays in treatment.ConclusionsData‐driven modelling within specific clinical settings can inform the (in)efficiency of patient flow processes and help clinicians and managers make evidence‐based decisions about patient transition through EDs. This can assist with reconfiguration of ED patient streaming particularly during periods of unique need, such as the recent COVID‐19 pandemic.
Morbid obesity influences the nocturnal electrocardiogram wave and interval durations among suspected sleep apnea patients
Authors: Kainulainen Samu , Suni Aaron , Lipponen Jukka A. , Kulkas Antti , Duce Brett , Korkalainen Henri , Nikkonen Sami , Sillanmäki Saara 
Published: November 2023

AbstractBackgroundObesity is a global issue with a major impact on cardiovascular health. This study explores how obesity influences nocturnal cardiac electrophysiology in suspected obstructive sleep apnea (OSA) patients.MethodsWe randomly selected 12 patients from each of the five World Health Organization body mass index (BMI) classifications groups (ntotal = 60) while keeping the group's age and sex matched. We evaluated 1965 nocturnal electrocardiography (ECG) samples (10 s) using modified lead II recorded during normal saturation conditions. R‐wave peaks were detected and confirmed using dedicated software, with the exclusion of ventricular extrasystoles and artifacts. The duration of waves and intervals was manually marked. The average electric potential graphs were computed for each segment. Thresholds for abnormal ECG waveforms were P‐wave > 120 ms, PQ interval > 200 ms, QRS complex > 120 ms for, and QTc > 440 ms.ResultsObesity was significantly (p < .05) associated with prolonged conduction times. Compared to the normal weight (18.5 ≤ BMI < 25) group, the morbidly obese patients (BMI ≥ 40) had a significantly longer P‐wave duration (101.7 vs. 117.2 ms), PQ interval (175.8 vs. 198.0 ms), QRS interval (89.9 vs. 97.7 ms), and QTc interval (402.8 vs. 421.2 ms). We further examined ECG waveform prolongations related to BMI. Compared to other patient groups, the morbidly obese patients had the highest number of ECG segments with PQ interval (44% of the ECG samples), QRS duration (14%), and QTc duration (20%) above the normal limits.ConclusionsMorbid obesity predisposes patients to prolongation of cardiac conduction times. This might increase the risk of arrhythmias, stroke, and even sudden cardiac death.
Effects of alpha lipoic acid treatment during in vitro maturation on the development of porcine somatic cell nuclear transfer embryos
Authors: Himaki Takehiro , Hano Kazuki 
Published: November 2023

AbstractOxidative stress influences the embryo production efficiency in vitro. We investigated the effects of alpha lipoic acid (ALA) treatment during the in vitro maturation (IVM) period on the porcine somatic cell nuclear transfer (SCNT) embryo production. After IVM, maturation rates of the 12.5‐ and 25‐μM ALA‐treated groups were not significantly different from those of the 0‐μM ALA‐treated group. Compared to those in the 0‐μM ALA‐treated group, the reactive oxygen species and glutathione levels were significantly decreased and increased, respectively, in the cytoplasm of matured oocytes in the 12.5–50‐μM ALA‐treated groups. Apoptosis rate in cumulus cells after IVM was significantly lower in the 12.5–50‐μM ALA‐treated groups than in the 0‐μM ALA‐treated group. Blastocyst formation rate was significantly higher in parthenogenetic oocytes treated with 12.5‐μM ALA than in the 0‐, 25‐, and 50‐μM ALA‐treated groups. Similarly, in SCNT embryos, the 12.5‐μM ALA‐treated group showed a significantly higher blastocyst formation rate than the 0‐μM ALA‐treated group. Apoptosis rate in SCNT blastocysts was significantly decreased by 12.5‐μM ALA treatment. The results showed that treatment with 12.5‐μM ALA during IVM improves porcine SCNT embryo development and partial quality.