bluuebunny/crossref_metadata_2025_split huggingface dataset:
Trends in Prevention of Mother-to-Child Transmission of HIV at PEPFAR-Supported Sites in Mozambique, 2017–2023
Authors: Langa Judite , de Deus Maria Inês , Arciniegas Sarah , Wate Argentina , Bila Erica , Alfândega Arla , Mate Nelice , Rungo Irene , Azambuja Gizela , Tibana Kwalila , Eliseu Námita 
Published: November 2024

BackgroundMozambique has implemented Prevention of Vertical Transmission (PVT) of HIV as part of national programming since 2002. Despite gains, vertical transmission rates remain high, estimated at 9% in 2023. We describe PVT progress at PEPFAR-supported sites.MethodsWe analyzed routine data from 656 PEPFAR-supported sites reported for fiscal years (October–September) 2017–2023. We calculated the proportion of pregnant women (PW) at first antenatal care (ANC1) who knew their status, HIV test positivity (positive tests divided by the total number of tests conducted); the proportion of PW on antiretroviral therapy (ART); the proportion of PW on ART with documented viral load (VL) test; the proportion of PW and breastfeeding women (BFW) with viral load suppression (VLS, defined as <1,000 copies/mL); the proportion of HIV-exposed infants (HEI) tested by 12 months who tested HIV positive; and the proportion of HEI-positives on ART. Data were analyzed by fiscal year.ResultsDuring 2017–2023, the proportion of PW who knew their HIV status at ANC1 increased from 90.4% (863,181/954,933) to 99.9% (1,047,870/1,049,225); HIV-positivity among PW at ANC1 decreased from 9.7% (84,038/863,181) to 8.1% (84,429/1,047,870); PW on ART remained above 99%; the proportion of PW who received a VL test increased from 24.5% (9,862/40,293) to 74.9% (46,292/61,818); and VLS increased from 51.4% (5,073/9,862) to 88.5% (40,950/46,292) and 60.8% (8,643/14,205) to 92.7% (149,893/161,695) among PW and BFW, respectively. During 2017–2023, HEI testing coverage increased from 76.5% (64,322/84,038) to 96.0% (82,689/86,132), and HEI HIV positivity declined from 8.5% (5,487/64,322) to 2.5% (2,075/82,689); during 2018–2023, the proportion of HIV positive HEI on ART increased from 82.7% (3,521/4,256) to 93.3% (1,936/2,075).ConclusionPEPFAR-supported sites have achieved progress in PVT. Continued implementation of sound interventions to improve ART initiation and retention, VLS, and HEI treatment linkage can lead to further reductions in vertical transmission and the elimination of mother-to-child transmission of HIV as a public health problem in the country.
Multi-Scale Characterization of Distance-dependent Functional Dysconnections in Major Depressive Disorder Across Two Asian Cohorts: A Genomic, Neurochemical, and Cellular Perspective
Authors: Qian Rui , Gao Huaijin , Qiu Bowen , Li Zichao , Gu Baorong , Ye Tongmei ,   the DIRECT Consortium, Wu Dan , Zhao Zhiyong 
Published: November 2024

AbstractMajor Depressive Disorder (MDD) is a prevalent, chronic, and multidimensional mental disorder characterized by widespread functional dysconnectivity in the whole brain. However, the potential molecular, cellular, and neural mechanisms, contributing to the diverse symptomatology and heterogeneity of MDD remain poorly understood. This study aims to elucidate the multi-scale pathophysiological mechanisms underlying MDD subtypes by integrating functional connectivity, transcriptomic, neurotransmitter, and cell-type analyses across two Asian cohorts: the Chinese REST-meta-MDD Consortium (Discovery) and the Japanese Decoded Neurofeedback Project (Validation). The discovery cohort identified distinct patterns of distance-dependent functional connectivity strength (FCS) alterations in MDD, revealing short- to medium-range hyperconnectivity in both total MDD and recurrent MDD (RMDD) patients, with long-range hyperconnectivity specifically observed in RMDD. In contrast, first-episode drug-naïve (FEDN) patients did not exhibit significant distance-dependent alterations in FCS. Genes associated with the FCS differences between FEDN and RMDD were enriched in pathways related to chemical synaptic transmission, neuron projection, and synaptic signaling. Moreover, FCS alterations in MDD subtypes were correlated with neurotransmitter receptor densities, particularly in the monoaminergic (e.g., 5HT1a, 5HT2a, and KappaOp) and GABAergic (GABAa) systems. Distinctive cell-type associations were observed, with astrocytes, endothelial cells, and oligodendrocyte precursor cells (OPCs) linked to FCS changes in RMDD, while only OPCs were associated with alterations in FEDN. The validation cohort partially replicated the key findings regarding distance-dependent FCS alterations, transcriptomic signatures, neurotransmitter associations, and cell-type specific relationships. These findings provide novel insights into the neurobiological underpinnings of functional dysconnections in MDD subtypes.
Single-dose avian influenza A(H5N1) Clade 2.3.4.4b hemagglutinin–Matrix-M nanoparticle vaccine induces neutralizing responses in nonhuman primates
Authors: Patel Nita , Rehman Asma , Trost Jessica F. , Flores Rhonda , Longacre Zach , Guebre-Xabier Mimi , Zhou Haixia , Zhou Bin , Jacobson Kelsey , Jiang Desheng , Bai Xiaoyun , Khatoon Rafia , Kort Thomas , Norton Jim , Madhangi M. , Hersey Melinda , Greene Ann M. , Dubovsky Filip , Smith Gale 
Published: November 2024

ABSTRACTWith the recent rise in cases of highly pathogenic avian influenza (HPAI) A(H5N1) clade 2.3.4.4b infection in humans and animals, there is an associated increase in the risk of human-to-human transmission. In this study, we characterize recombinant A(H5N1) A/American Wigeon/South Carolina/22/000345-001/2021 (A/AW/SC/2021) clade 2.3.4.4b vaccine. Purified recombinant A/AW/SC/2021 HA trimers upon formulation with Matrix-M™ adjuvant, saponin-cholesterol-phospholipid icosahedral particles, non-covalently anchored to the vertices of the Matrix-M forming A(H5N1) HA–Matrix-M nanoparticles (H5-MNPs). In naïve mice, two intranasal (IN) or intramuscular (IM) doses of A/AW/SC/2021 H5-MNP vaccine induced robust antibody- and cell-mediated immune responses, including neutralizing antibodies against A(H5N1). In non-human primates (NHPs) primed with seasonal influenza vaccine, a single IM or IN dose of the A/AW/SC/2021 H5-MNP vaccine induced geometric mean serum A(H5N1) clade 2.3.4.4b pseudovirus neutralizing titers of 1:1160 and 1:54, respectively; above the generally accepted seroconverting neutralizing titer of 1:40. Immunization with H5-MNP vaccine induced antibody responses against conserved epitopes in the A(H5N1) HA stem, vestigial esterase subdomain, and receptor binding site. This novel A(H5N1) H5-MNP IN and IM vaccine was immunogenic in rodents and NHPs as a potential A(H5N1) pandemic single-dose vaccine.
Consumers’ healthy lifestyle as a determinant of the influence of microcelebrities and microinfluencers
Authors: Palazón Mariola , Alarcón-del-Amo María del Carmen , Martínez Borja , López Manuela 
Published: November 2024

PurposeThis study analyzes what type of influencer – microcelebrity or microinfluencer – is best suited to promoting healthy food brands and how that influence depends on consumers’ healthy lifestyles.Design/methodology/approachAn empirical study with a real healthy food brand was developed in which three real influencers from Instagram collaborated and posted a story showing the company’s products. A total of 148 individuals participated in the study. The proposed model was tested using the PROCESS macro.FindingsDrawing on the celebrity endorsement literature and the meaning transfer model, this study proposes that microcelebrities’ and microinfluencers’ influence on consumers’ perception and behavior in terms of post relevance, brand attitude and purchase intention toward healthy food brands depends on the consumers’ healthy lifestyle. Thus, microcelebrities have more influence on individuals with unhealthy lifestyles, while microinfluencers have more influence on individuals that pursue a healthy lifestyle.Originality/valueIt is one of the first studies to examine the different roles of microinfluencers versus microcelebrities in promoting consumers’ attitudes and behaviors toward healthy food brands. In addition, this is one of the few studies to show a higher effect of microcelebrities over microinfluencers.
Unveiling dimensions of social security research: a comprehensive bibliometric analysis and collaborative landscape
Authors: Rahimi Mohammad , Moshiri Hossein , Otarkhani Ali 
Published: November 2024

Purpose
This study aims to evaluate patterns, trends and knowledge networks within social security research. By using bibliometric analysis, the research seeks to provide a comprehensive perspective on the evolution of global social security research. The purpose extends to identifying significant contributors, collaborative clusters and multifaceted issues addressed in the field.

Design/methodology/approach
This study uses bibliometric analysis to assess social security research trends and knowledge networks from 2015 to 2023. Using the Web of Science database, 6,152 relevant articles are analyzed. Quantitative techniques such as coauthorship network analysis, institutional productivity rankings and keyword clustering are applied for a comprehensive understanding.

Findings
The findings indicate a rising trajectory of publications in social security research, with the USA, China and Europe emerging as top contributors. Coauthorship patterns reveal collaborative clusters with focused research interests. Prominent authors emphasize key aspects like public policy, economics, health and labor dynamics related to social security. Keyword clustering identifies nine thematic clusters, ranging from inequality and poverty to retirement and disability reforms. A thematic map visualizes overarching categories, including motor themes, basic themes, niche themes and emerging themes.

Originality/value
This bibliometric study offers original insights into global social security research, providing a comprehensive understanding of its evolution, significant contributors and diverse thematic issues addressed. The originality lies in the application of quantitative techniques, including coauthorship network analysis and keyword clustering, to reveal collaborative patterns and thematic clusters. The study’s value extends to facilitating evidence-based decision-making for advancing the critical domain of social security through international collaboration and impactful research aligned with societal needs.
Investor sentiment and stock markets during the war in pandemic time
Authors: Bouteska A. , Hassan Mohamad Kabir , Safa M. Faisal 
Published: November 2024

Purpose
This paper aims to use three proxy variables – initial public offerings, trading volume and business confidence index (BCI) to construct an investor sentiment index both for the USA and China, taking into account the challenging periods of the COVID-19 pandemic and the Russo-Ukrainian conflict.

Design/methodology/approach
Based on monthly data for a period from January 2009 to June 2022, this paper uses data of BCI, consumer confidence index (CCI), gross domestic product, trading volume and Fama and French (1993) factor data; linear regression of single and multifactor model; and EGARCH-M model for analyzing the effect of investor sentiment on stock market return and volatility, both in the USA and China.

Findings
The empirical results indicate the suitability of BCI over CCI as a measure of investor sentiment, both in the USA and China. The results indicate that investor sentiment has a significant positive effect on the excess returns in the stock market in both countries. Moreover, the effect of investor sentiment is higher in China than it is in the USA. Such an effect of investor sentiment is significant and fluctuates asymmetrically in the short run but loses its significance in the long run. Optimistic investor sentiment has a larger effect on the stock market volatility in the USA, while the pessimistic investor sentiment has a larger effect in the Chinese stock market.

Originality/value
This paper focuses on finding a more suitable proxy for investor sentiment from BCI or CCI. This paper also contributes by including both optimism and pessimism in explaining the stock return and volatility in both markets. The overall findings are important for understanding investor behavior in different market conditions.
Assessing ambidextrous leadership in organizations: review and future scope for research
Authors: Jain Sarika , Badra Shailja , Vichore Sarita 
Published: November 2024

Purpose
The purpose of this paper is to explore ambidextrous leadership, a complex and multifaceted domain within leadership studies. This study examines the concept of ‘ambidextrous leadership’ from its inception, employing bibliometric analysis and the Theory–Context–Characteristics–Methods (TCCM) framework to address critical research questions and identify pathways for future investigation in leadership research.

Design/methodology/approach
To accomplish this objective, the authors conduct a bibliometric analysis and TCCM analysis of ambidextrous leadership, using data sourced from Scopus, the most extensive scientific database for review purposes. By examining 99 documents (spanning from 2007 through September 2023) related to ambidextrous leadership research from Scopus, this paper unveils insights into the performance analysis (such as publication year, noteworthy articles, prominent journals, influential authors and geographic distribution) and the evolution of scientific exploration (including key topics and themes) within the field of ambidextrous leadership over two decades. The investigation used various science mapping tools like keyword analysis, three-field plots, bibliographic coupling, co-occurrence network analysis and thematic mapping analysis. To evaluate the Bibliometric Coupling and Co-occurrence Network, a VOS viewer was used. TCCM analysis guides the future directions of research.

Findings
The bibliometric analysis reveals the publication trends, most influential authors, articles, journals, countries and important keywords. Subsequently, it presents the network connections in the field of ambidextrous leadership. TCCM analysis recognized emerging research diversifications in the literature on ambidextrous leadership.

Research limitations/implications
A single database, i.e. Scopus, was used to extract the data which poses a limitation for the current study. This study provides insights to the researchers and practitioners on a comprehensive understanding of the emerging concept of “ambidextrous leadership,” an overview of the publication trends and emerging research themes identified in the clusters, and suggests possible directions for further study using TCCM analysis.

Originality/value
This study provides the intellectual structure of ambidextrous leadership literature and its advancement over the years using bibliometric analysis and TCCM analysis.
Sustainability communication: a content analysis of websites of higher education institutions in the UK
Authors: Abuzeinab Amal , Muhammad Abdulrahman Haruna , Awuzie Bankole , Letten Karl , Zairi Adel 
Published: November 2024

Purpose
Websites of higher education institutions (HEIs) have been identified as veritable platforms for communicating sustainability. However, studies seeking to assess the correlation between the degree of communication and the sustainability performance of HEIs, based on their rankings specifically in the UK, remain limited. As its contribution towards bridging this gap, this study aims to examine how members of the Environmental Association of Universities and Colleges (EAUC) communicate sustainability through their websites. It focuses on 27 EAUC members that received first-class awards in the People and Planet University League.

Design/methodology/approach
An intensive Web-based content analysis was used to analyse the degree of sustainability communication carried out by HEIs that are EAUC members through their respective websites. To analyse the content of these websites, 16 existing indicators were adopted covering three categories: sustainability management strategies and policies; location of sustainability-related information on the websites; and sustainability communication techniques.

Findings
All the HEIs examined in this study demonstrate some level of engagement in sustainability on their respective websites. Although EAUC members appear to be making significant effort in communicating their commitment to sustainability, this study recommends improvements in the visibility of sustainability messages on homepages of institutional websites, as only a small percentage of institutions mention sustainability-related matters there.

Practical implications
With HEIs increasingly taking actions towards sustainability, this study presents a valuable contribution to the growing body of knowledge in this field, encouraging HEIs to effectively communicate their sustainability practices to stakeholders.

Originality/value
As far as the authors are aware, this study represents the first endeavour to evaluate the sustainability content available on the EAUC members websites of HEIs in the UK.
Strategies for promoting sustainable development in higher education institutions of the QualEnv Consortium: a focus on teaching, research and outreach
Authors: Fuchs Paulo Guilherme , Aver Gisleine , da Rocha Junior Valdemiro , Cembranel Priscila , Cubas Anelise Leal Vieira , Dutra Ana Regina Aguiar , Salgueirinho Osório de Andrade Guerra José Baltazar 
Published: November 2024

Purpose
This study explores the strategies for promoting sustainable development (SD) adopted by the higher education institutions (HEIs) associated with the QualEnv University Consortium (QualEnv). The research examines actions in three main domains: teaching, research and outreach. This study aims to understand better how these strategies are applied and their impact on achieving the Sustainable Development Goals (SDGs). The results of this study can potentially contribute to the effectiveness of action plans for SD in HEIs and provide valuable insights for other institutions and stakeholders.

Design/methodology/approach
The study was based on institutionalizing sustainability research and practices in QualEnv HEIs. In this process, the research used participant observation for data collection. Data was collected through documentary research and a literature review. The data were analyzed qualitatively.

Findings
The results allowed understanding sustainability in all three areas. In teaching, most attention was paid to implementing the SDGs in the curricula and various courses at the institutions. Strategies for qualifying publications and greater dissemination and involvement of research initiatives with the SDGs were sought in research. In outreach, the means and activities the HEIs adopt to reach out to the internal and external (surrounding) communities concerning the SDGs and the search for their propagation and implementation were notable. Many of the actions result from changes to existing processes, which have been given a close look by the institutions with a view to improvement.

Originality/value
This study discusses the practical implications for HEIs to plan and implement SD in their teaching, research and outreach activities. It also demonstrates the effort to improve initiatives to work on education for sustainability, as it shows how the institutions belonging to the QualEnv consortium have planned their strategies to contribute to SD.
Potential of Islamic banking: focus on the Tunisian market
Authors: Ammar Rym , Saidane Dhafer 
Published: November 2024

Purpose
The purpose of this study is to assess the social utility of the Islamic banking system, with a focus on the Tunisian market as a case example.

Design/methodology/approach
The authors study individuals’ potential demand for Islamic financial products in different Tunisian regions. To do that, the authors conducted a national survey based on the quota sampling method to select the number of interviewed by governorate and sex. The authors then obtained a sample that included 1,600 persons from different social categories with a minimum age of 18 years.

Findings
The survey results show that this potential demand is significant but Tunisian Islamic Banks should work more to enlarge their existing customer base. Indeed, they should consider the level of Islamic finance knowledge and the sociodemographic characteristics (such as governorate, level of education and annual income) to ensure social welfare. They should also supply Islamic microfinance products to ensure the inclusion of poorer agents. In addition, Islamic banks should provide competitive products and services at lower cost and higher quality that are compliant with the Sharia principles to encourage entrepreneurs or richer agents to invest in profitable and innovative projects, especially in economically disadvantaged regions. This would strengthen accountable decentralization and fight income inequality in Tunisia.

Originality/value
This work reflects the behavior and preferences of all Tunisians (adopters or non-adopters of IFPS) including the Tunisian inland areas inhabitants. To do this, we include the socio-demographic factors in our analysis.
Safety costs in Arctic shipping: a proposal classification and estimation
Authors: Wan Junjie , Baumler Raphael 
Published: November 2024

PurposeThis study classifies and estimates safety costs in Arctic shipping.Design/methodology/approachBased on the literature review, the paper details shipping prevention costs into five categories (infrastructure and facilities, measures, technologies, personnel and management) and groups marine accidents into injury and death, property damage, environmental damage and others.FindingsThe proposed classification and estimation allow for a comparison of prevention costs and accident expenses. Estimating safety expenses in the Arctic presents challenges, such as data inadequacies. However, the method has been tested with data provided by an Arctic ship operator.Practical implicationsThus, shipping companies can verify the effectiveness of their investments and reorientate whenever necessary, becoming a decision-support system to best allocate safety investments. Combined with company safety performance, the tool can help identify the safety areas requiring enhanced attention.Originality/valueThis paper presents the first classification and a tool to assess safety costs in relation to Arctic shipping, potentially supporting safety investment decisions.