bluuebunny/crossref_metadata_2025_split huggingface dataset:
The establishment and maintenance of dominance hierarchies
Authors: Tibbetts Elizabeth A. , Pardo-Sanchez Juanita , Weise Chloe 
Published: January 2022

Animal groups are often organized hierarchically, with dominant individuals gaining priority access to resources and reproduction over subordinate individuals. Initial dominance hierarchy formation may be influenced by multiple interacting factors, including an animal's individual attributes, conventions and self-organizing social dynamics. After establishment, hierarchies are typically maintained over the long-term because individuals save time, energy and reduce the risk of injury by recognizing and abiding by established dominance relationships. A separate set of behaviours are used to maintain dominance relationships within groups, including behaviours that stabilize ranks (punishment, threats, behavioural asymmetry), as well as signals that provide information about dominance rank (individual identity signals, signals of dominance). In this review, we describe the behaviours used to establish and maintain dominance hierarchies across different taxa and types of societies. We also review opportunities for future research including: testing how self-organizing behavioural dynamics interact with other factors to mediate dominance hierarchy formation, measuring the long-term stability of social hierarchies and the factors that disrupt hierarchy stability, incorporating phenotypic plasticity into our understanding of the behavioural dynamics of hierarchies and considering how cognition coevolves with the behaviours used to establish and maintain hierarchies.This article is part of the theme issue ‘The centennial of the pecking order: current state and future prospects for the study of dominance hierarchies’.
Dominance in humans
Authors: Chen Zeng Tian , Cheng Joey T. , Henrich Joseph 
Published: January 2022

Dominance captures behavioural patterns found in social hierarchies that arise from agonistic interactions in which some individuals coercively exploit their control over costs and benefits to extract deference from others, often through aggression, threats and/or intimidation. Accumulating evidence points to its importance in humans and its separation from prestige—an alternate avenue to high status in which status arises from information (e.g. knowledge, skill, etc.) or other non-rival goods. In this review, we provide an overview of the theoretical underpinnings of dominance as a concept within evolutionary biology, discuss the challenges of applying it to humans and consider alternative theoretical accounts which assert that dominance is relevant to understanding status in humans. We then review empirical evidence for its continued importance in human groups, including the effects of dominance—independently of prestige—on measurable outcomes such as social influence and reproductive fitness, evidence for specialized dominance psychology, and evidence for gender-specific effects. Finally, because human-specific factors such as norms and coalitions may place bounds on purely coercive status-attainment strategies, we end by considering key situations and contexts that increase the likelihood for dominance status to coexist alongside prestige status within the same individual, including how: (i) institutional power and authority tend to elicit dominance; (ii) dominance-enhancing traits can at times generate benefits for others (prestige); and (iii) certain dominance cues and ethology may lead to mis-attributions of prestige.This article is part of the theme issue ‘The centennial of the pecking order: current state and future prospects for the study of dominance hierarchies’.
Durability and cross-reactivity of SARS-CoV-2 mRNA vaccine in adolescent children
Authors: Burns Madeleine D , Boribong Brittany P , Bartsch Yannic C , Loiselle Maggie , Davis Jameson P , Lima Rosiane , Edlow Andrea G , Fasano Alessio , Alter Galit , Yonker Lael M 
Published: January 2022

AbstractEmergent SARS-CoV-2 variants and waning humoral immunity in vaccinated individuals have resulted in increased infections and hospitalizations. Children are not spared from infection nor complications of COVID-19, and the recent recommendation for boosters in individuals ages 12 years or older calls for broader understanding of the adolescent immune profile after mRNA vaccination. We tested the durability and cross-reactivity of anti-SARS-CoV-2 serologic responses over a six-month time course in vaccinated adolescents against the SARS-CoV-2 wild type and Omicron antigens. Serum from 77 adolescents showed that anti-Spike antibodies wane significantly over 6 months. After completion of a two-vaccine series, cross-reactivity against Omicron-specific receptor-binding domain (RBD) was seen. Evidence of waning mRNA-induced vaccine immunity underscores vulnerabilities in long-term pediatric protection against SARS-CoV-2 infection, while cross-reactivity highlights the additional benefits of vaccination. Characterization of adolescent immune signatures post-vaccination will inform guidance on vaccine platforms and timelines, and ultimately optimize immunoprotection of children.
Genetic background of grey matter brain networks related to attention-deficit/hyperactivity disorder
Authors: Schoenmacker Gido H. , Duan Kuaikuai , Rootes-Murdy Kelly , Jiang Wenhao , Hoekstra Pieter J. , Hartman Catharina A. , Oosterlaan Jaap , Hoogman Martine , Franke Barbara , Turner Jessica A. , Liu Jingyu , Claassen Tom , Heskes Tom , Buitelaar Jan K. , Vásquez Alejandro Arias 
Published: January 2022

AbstractAttention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder and is associated with structural grey matter differences in the brain. We investigated the genetic background of some of these brain differences in a sample of 899 adults and adolescents consisting of individuals with ADHD and healthy controls. Previous work in an overlapping sample identified three ADHD-related grey matter brain networks located in areas of the superior, middle, and inferior frontal gyrus as well as the cerebellar tonsil and culmen. We associated these brain networks with protein coding genes using a statistical stability selection approach. We identified ten genes, the most promising of which were NR3C2, TRHDE, SCFD1, GNAO1, and UNC5D. These genes are expressed in brain and linked to neuropsychiatric disorders including ADHD. With our results we aid in the growing understanding of the aetiology of ADHD from genes to brain to behaviour.
The Dynamics of SARS-CoV-2 Infectivity with Changes in Aerosol Microenvironment
Authors: Oswin Henry P. , Haddrell Allen E. , Otero-Fernandez Mara , Mann Jamie F.S. , Cogan Tristan A. , Hilditch Tom , Tian Jianghan , Hardy Dan , Hill Darryl J. , Finn Adam , Davidson Andrew D. , Reid Jonathan P. 
Published: January 2022

AbstractUnderstanding the factors that influence the airborne survival of viruses such as SARS-CoV-2 in aerosols is important for identifying routes of transmission and the value of various mitigation strategies for preventing transmission. We present measurements of the stability of SARS-CoV-2 in aerosol droplets (∼5-10µm equilibrated radius) over timescales spanning from 5 seconds to 20 minutes using a novel instrument to probe survival in a small population of droplets (typically 5-10) containing ∼1 virus/droplet. Measurements of airborne infectivity change are coupled with a detailed physicochemical analysis of the airborne droplets containing the virus. A decrease in infectivity to ∼10 % of the starting value was observable for SARS-CoV-2 over 20 minutes, with a large proportion of the loss occurring within the first 5 minutes after aerosolisation. The initial rate of infectivity loss was found to correlate with physical transformation of the equilibrating droplet; salts within the droplets crystallise at RHs below 50% leading to a near instant loss of infectivity in 50–60% of the virus. However, at 90% RH the droplet remains homogenous and aqueous, and the viral stability is sustained for the first 2 minutes, beyond which it decays to only 10% remaining infectious after 10 minutes. The loss of infectivity at high RH is consistent with an elevation in the pH of the droplets, caused by volatilisation of CO2from bicarbonate buffer within the droplet. Three different variants of SARS-CoV-2 were compared and found to have a similar degree of airborne stability at both high and low RH.SignificanceThe aerosol microenvironment is highly dynamic exposing pathogens, such as the SARS-CoV-2 virus when exhaled in respiratory aerosol, to extreme conditions of solute concentration, pH and evaporative cooling. Yet surviving this environment is a key step in the transmission of such pathogens. Understanding the impact that airborne transport has on pathogens and the influence of environmental conditions on pathogen survival can inform the implementation of strategies to mitigate the spread of diseases such as COVID-19. We report changes in the infectivity of the airborne virus over timescales spanning from 5 s to 20 minutes and demonstrate the role of two microphysical processes in this infectivity loss: particle crystallisation and aerosol droplet pH change.
Population-split-based risk assessment model of venous thromboembolism in Chinese medical inpatients
Authors: Wang Xin , Yang Yu-Qing , Hong Xin-Yu , Liu Si-Hua , Li Jian-Chu , Chen Ting , Shi Ju-Hong 
Published: January 2022

AbstractsObjectiveInpatients with high risk of venous thromboembolism (VTE) usually face serious threats to their health and economic conditions. Many studies using machine learning (ML) models to predict VTE risk neglected an important statistical phenomenon, ‘fuzzy feature’, and achieved inferior results. Considering the effect of ‘fuzzy feature’, our study aims to develop a VTE risk assessment model suitable for Chinese medical inpatients.Materials and MethodsInpatients in the medical department of Peking Union Medical College Hospital (PUMCH) from January 2014 to June 2016 were collected. A new ML VTE risk assessment model was built through population splitting. First patients were classified into different groups based on values of VTE risk factors, then trustless groups were filtered out, and finally ML models were built on training data in unit of groups. Predictive performances of our method, five traditional ML models, and the Padua model were compared.ResultsThe ‘fuzzy feature’ was verified on the whole dataset. Compared with the Padua model, the proposed model showed higher sensitivities and specificities on training data, and higher specificities and similar sensitivities on test data. Standard deviations of predictive validity of five ML models were larger than the proposed model.DiscussionThe proposed model was the only one which showed advantages on both sensitivity and specificity over Padua model. Its robustness was better than traditional ML models.ConclusionThis study built a population-split-based ML model of VTE for Chinese medical inpatients and it may help clinicians stratify VTE risk and guide prevention more efficiently.
Epidemiology of SARS-CoV-2 infection in Italy using real-world data: methodology and cohort description of the second phase of web-based EPICOVID19 study
Authors: Adorni Fulvio , Jesuthasan Nithiya , Perdixi Elena , Sojic Aleksandra , Giacomelli Andrea , Noale Marianna , Trevisan Caterina , Franchini Michela , Pieroni Stefania , Cori Liliana , Mastroiannii Claudio M , Bianchi Fabrizio , Incalzi Raffaele Antonelli , Maggi Stefania , Galli Massimo , Prinelli Federica 
Published: January 2022

ABSTRACTDigital technologies have been extensively employed in response to the SARS-CoV-2 pandemic worldwide. This study describes the methodology of the two-phase internet-based EPICOVID19 survey, and the characteristics of the adult volunteers respondents who lived in Italy during the first (April - May 2020) and the second wave (January - February 2021) of the epidemic. Validated scales and ad-hoc questionnaires were used to collect socio-demographic, medical and behavioural characteristics, as well as information on COVID-19. Among those who provided email addresses during phase I (105,355), 41,473 participated in phase II (mean age 50.7 years ± 13.5 SD, 60.6% females). After a median follow-up of ten months, 52.8% had undergone naso-pharyngeal swab (NPS) testing and 13.2% had positive result. More than 40% had undergone serological test (ST) and 11.9% were positive. Out of the 2,073 participants with at least one positive ST, 72.8% had only negative results from NPS or never performed it. These results indicate that a large fraction of individuals remained undiagnosed, possibly contributing to the spread of the virus in the community. Participatory online surveys offer a unique opportunity to collect relevant data at individual level from large samples during confinement.
Subtypes of early childhood caries predict future caries experience
Authors: Gormley Alexander , Haworth Simon , Simancas-Pallares Miguel , Holgerson Pernilla Lif , Esberg Anders , Shrestha Poojan , Divaris Kimon , Johansson Ingegerd 
Published: January 2022

AbstractObjectivesTo test whether postulated subtypes of early childhood caries (ECC) are predictive of subsequent caries experience in a population-based cohort of Swedish children.MethodsThe study included children aged between 3 and 5 years at study entry with dental records available for at least 5 years of follow-up. Dental record data were retrieved from the Swedish Quality Registry for Caries and Periodontal disease (SKaPa) for the initial and follow-up visits. Participants who had ECC at study entry were assigned to one of five ECC subtypes (termed classes 1 to 5) using latent class modelling of tooth surface-level caries experience. Subsequent experience of caries was assessed using the decayed, missing, and filled surfaces indices (dmfs/DMFS) at follow-up visits, and compared between ECC subtypes using logistic and negative binomial regression modelling.ResultsThe study included 128,355 children who had 3 or more dental visits spanning at least 5 years post baseline. Of these children, 31,919 had caries at the initial visit. Baseline ECC subtype was associated with differences in subsequent disease experience. As an example, 83% of children who had a severe form of ECC at age 5 went on to have caries in the permanent dentition by the end of the study, compared to 51% of children who were caries-free at age 5 (adjusted odds ratio of 4.9 for new disease at their third follow-up).ConclusionsECC subtypes assigned at a baseline visit are associated with differences in subsequent caries experience in both primary and permanent teeth. This suggests that the development and future validation of an ECC classification can be used in addition to current prediction tools to help identify children at high risk of developing new caries lesions throughout childhood and adolescence.
A mixed-method approach to assess users' intention to use mobile health (mHealth) using PLS-SEM and fsQCA
Authors: Hasan Najmul , Bao Yukun 
Published: January 2022

PurposeDespite the enormous potential of mobile health (mHealth), identifying the asymmetric relationship among the predictors towards intention to use (ITU) of mHealth tends to remain unresolved. This study aims to investigate the predictors and their asymmetric effects on ITU of mHealth through patients and healthcare professionals.Design/methodology/approachAn integrated information systems (IS) model with four additional constructs has been developed to analyze symmetric and asymmetric effects on ITU of mHealth. An exploratory survey on 452 mHealth users with prior experience was conducted to evaluate the model using a mixed-method approach including partial least squares-based structural equation modeling (PLS-SEM) and fuzzy-set qualitative comparative analysis (fsQCA) technique.FindingsThe findings show that facilitating conditions, personal awareness building, perceived enjoyment, effort expectancy and perceived usefulness have predictive power for ITU of mHealth. In contrast, fsQCA reveals four more alternative solutions, including the main drivers explored by PLS-SEM. The results indicate that various conditions that were not crucial in PLS-SEM analysis are shown to be sufficient conditions in fsQCA.Research limitations/implicationsThis study contributes to theory by integrating self-actualization factors (i.e. personal awareness building, patients as decision support unit) into the IS model. And practically, this study makes an essential contribution to users' ITU of mHealth, enabling relevant stakeholders to build strategies to implement mHealth successfully.Originality/valueWhile mHealth has revolutionized healthcare and the prior literature only showed linear relationships, this empirical study revealed asymmetrical relationships among the determinants of ITU of mHealth. Thus, this study extends to the growing body of literature on the use of mHealth technology in the least developing nation.
Benchmarking the failure assessment of perishable product supply chain using fault tree approach: insights from apple case study of India
Authors: Bhardwaj Manisha , Agrawal Rajat 
Published: January 2022

PurposeThe purpose of this paper is to facilitate perishable product supply chain (PPSC) managers and practitioners to assess PPSC failure events. The paper proposed fault tree methodology for assessing failures associated with PPSC for evaluating the performance in terms of effective PPSC management adoption.Design/methodology/approachInitially, different failure events were identified from literature and semi-structured interviews from experts. Fault tree model was developed from the identified failure events. Probability of failure events was calculated using Poisson distribution based on the annual reports and interviews conducted from experts. Further, qualitative analysis – minimum cut sets (MCSs), structural importance coefficient (SIC) – and quantitative analysis – Birnbaum importance measure (BIM), criticality importance factor (CIF) and diagnosis importance factor (DIF) – were performed for ranking of failure events. In this study, fault tree development and analysis were conducted on apple supply chain to present the authenticity of this method for failure analysis.FindingsThe findings indicate that the failure events, given as failure at production and procurement (A2), that is, involvement of middleman (BE3), handling and packaging failure (BE4) and transportation failure (A3), hold the highest-ranking scores in analysis of PPSC using fault tree approach.Originality/valueThis research uses the modularization approach for evaluation of failure events of PPSC. This paper explores failures related to PPSC for efficient management initiatives in apple supply chain context. The paper also provides suggestion from managerial perspective with respect to each failure event.
Eyes open and hands on: market knowledge and marketing capabilities in export markets
Authors: Hoque Mohammad Tayeenul , Ahammad Mohammad Faisal , Tzokas Nikolaos , Tarba Shlomo , Nath Prithwiraj 
Published: January 2022

PurposeDrawing on the knowledge-based view of the firm (KBV) and Dynamic Marketing Capabilities (DMC), this paper examines the role of key internationalization knowledge absorption processes as learning strategies, namely market exploitation and market exploration in enabling internationalization knowledge absorption in export-oriented firms involved in manufacturing goods or producing electrical/engineering products.Design/methodology/approachThe data were gathered via a cross-sectional survey using a questionnaire (i.e. n = 315) on a sample of Bangladeshi manufacturing firms exporting in US and European markets.FindingsThe findings suggest that an export firm's internationalization absorption strategies are positively associated with export performance. The authors also found that the mediator, DMC, strengthened the relationship between knowledge absorption and export performance. Moreover, the findings of moderated mediation model revealed that the direct and indirect effects of market exploitation on export performance are more prevalent when competitive intensity is low. While competitive intensity is high, the direct and indirect effects of market exploration on export performance are more prevalent.Practical implicationsBy introducing a higher-level dynamic marketing capability approach and linking it to ambidexterity constructs (learning though exploration and exploitation), export business professionals should appreciate the full spectrum of mid-level marketing capabilities they need to develop alongside their exploration and exploitation strategies to improve their export performance. This study directs attention to the competitive intensity conditions the exporting firm is facing. When export business professionals are faced with high-level of competitive intensity in the market, they should establish a clear focus on their exploration learning strategies if they wish to enhance their export performance.Originality/valueThe authors contribute to two broad domains of literature: organizational learning and DMC strategy. The study results show that how the two components of international ambidexterity as organizational learning constructs (i.e. market exploration and exploitation) influence knowledge management processes within firms through a firm's possession of a fine configuration of higher-level marketing capability. This study also theoretically and empirically examines how higher-level DMC strategy can mediate the consequence of international knowledge absorption mechanism on firm export performance. From a practical perspective, this study provides useful lessons for exporting firms wishing to enhance their performance.
Happiness and pro-environmental consumption behaviors
Authors: Nguyen Hung Vu , Le Mai Thi Thu , Pham Chuong Hong , Cox Susie S. 
Published: January 2022

PurposeThis paper employs the theoretical foundations for subjective well-being to examine the impacts of two underlying dimensions of subjective well-being (psychological well-being and social well-being) on pro-environmental consumption behaviors (PECBs). In this research, the moderating role of exposure to positive environmental messages on media in the relationship between subjective well-being and PECBs is also examined.Design/methodology/approachThis research uses a quantitative research method with data collected from an online survey questionnaire posted in Facebook groups related to PECBs in Vietnam.FindingsPsychological well-being and social well-being are found to be separate significant predictors of PECBs. More importantly, exposure to positive environmental messages on media was found to reinforce the impacts of psychological well-being on PECB but not moderate the relationship between social well-being and PECB.Originality/valueThis research offers a new insight for encouraging PECB from the perspective of subjective well-being. Different from the extant perspectives, which usually examine subjective well-being as a unidimensional antecedent of PECB, the authors highlight that subjective well-being can influence PECB in two separate dimensions. Moreover, this research extends existing literature by accentuating the role of exposure to environmental messages in the association between different types of social well-being and PECB.