bluuebunny/crossref_metadata_2025_split huggingface dataset:
Understanding the perceptions of UK COVID-19 contact tracing app in the BAME community in Leicester
Authors: Akintoye Simisola , Ogoh George , Krokida Zoi , Nnadi Juliana , Eke Damian 
Published: December 2021

Purpose
Digital contact tracing technologies are critical to the fight against COVID-19 in many countries including the UK. However, a number of ethical, legal and socio-economic concerns that can affect uptake of the app have been raised. The purpose of this research is to explore the perceptions of the UK digital contact tracing app in the Black, Asian and Minority Ethnic (BAME) community in Leicester and how this can affect its deployment and implementation.

Design/methodology/approach
Data was collected through virtual focus groups in Leicester, UK. A total of 28 participants were recruited for the study. All participants are members of the BAME community, and data was thematically analysed with NVivo 11.

Findings
A majority of the participants were unwilling to download and use the app owing to legal and ethical concerns. A minority were willing to use the app based on the need to protect public health. There was a general understanding that lack of uptake will negatively affect the fight against COVID-19 in BAME communities and an acknowledgement of the need for the government to rebuild trust through transparency and development of regulatory safeguards to enhance privacy and prevent misuse.

Originality/value
To the best of the authors’ knowledge, the research makes original contributions being the first robust study conducted to explore perceptions of marginalised communities, particularly BAME which may be adversely impacted by the deployment of the app. By exploring community-based perceptions, this study further contributes to the emerging citizens’ perceptions on digital contact tracing which is crucial to the effectiveness and the development of an efficient, community-specific response to public attitudes towards the app. The findings can also help the development of responsible innovation approaches that balances the competing interests of digital health interventions with the needs and expectations of the BAME community in the UK.
Highly cited articles in social sciences: an analytical study
Authors: Mahapatra Namita , Sahoo Jyotshna 
Published: December 2021

Purpose
This paper aims at analyzing the distinctive characteristics of highly cited articles (HCAs) in the domain of Social Sciences with respect to chronological growth pattern, productive journals, authorship pattern, prolific authors, top institutions and leading countries, network among institutions and top ranked keywords in social science research.

Design/methodology/approach
The required data has been retrieved from Scopus indexing database and further refined using various limits like document types, subject coverage and total citations, and finally, 839 articles were selected for detail analysis. A set of bibliometric indicators were used to make a quantitative analysis, whereas VOSviewer software tool was used to visualize the institutional network and keywords mapping of the HCAs.

Findings
This study revealed that highest number of HCAs (371) were published during the decade 2001–2010. Degree of collaboration, collaborative index and collaborative coefficient were observed to be 0.513, 1.98 and 0.988, respectively. The highly cited papers were emanated from 397 journals, contributed by 1,556 authors from 1,326 institutions placed in 46 countries. Social Science and Medicine was the most productive journal; J. Urry of Lancaster University, UK, was the most influential author; the USA, the UK and Canada are the torchbearers in social science research. The paper entitled “Five misunderstandings about case-study research,” authored by B. Flyvbjerg, published in 2006 in Qualitative Inquiry, received highest 4,730 citations.

Originality/value
The primary value of this paper lies in extending an understanding of the characteristics of HCAs in the domain of social sciences. It will provide an insight to the researchers to get acquainted with the most influential authors, journals, institutions, countries and major thrust areas of research in social sciences.
Assuring quality of school-based assessment: the perspectives of heads of department in moderating tourism tasks
Authors: Dube-Xaba Zanele , Makae Malehlohonolo Precious 
Published: December 2021

Purpose
The aim of quality assessment is to support the development of learners’ competencies as required in 21st century economies. This paper aims to analyse the role and understanding of heads of department (HoDs) regarding quality assessment and the moderation of school-based assessment (SBA) tasks in tourism, which is a subject in the secondary school curriculum.

Design/methodology/approach
To elicit valid findings in this interpretative study, focus group discussions were conducted with 16 participants. The HoDs who participated in this study were purposively sampled based on their role as managers of tourism in their respective schools.

Findings
Informed by the context, input, process and output theoretical model, this study identified various elements that impacted the enactment of HoDs’ role in the moderation of SBA tasks, with particular reference to tourism. Despite these HoDs’ understanding of the importance of moderation as a key aspect in assuring quality assessment practices, it was found that the moderation of tourism SBA tasks was generally not conducted meticulously and appropriately.

Research limitations/implications
The qualitative case study on which this paper is based used a limited sample within a restricted timeframe and the results may thus not be generalised. However, the methodology produced trustworthy results and may thus be replicated and extended to other subjects with a practical component for enhanced insights into SBA practices.

Practical implications
This paper highlights the necessity for schools to rely on knowledgeable and principled curriculum leaders, particularly HoDs, for the effective management of assessment and moderation strategies to ensure quality outcomes. The qualitative case study on which this paper is based used a limited sample within a restricted timeframe, and the results may thus not be generalised. However, the methodology produced trustworthy results and may thus be replicated and extended to other subjects with a practical component for enhanced insights into SBA practices.

Originality/value
This paper contributes to the discourse on quality assurance and SBA, with particular focus on how quality assessment can be enhanced in the moderation process of tourism. The insights that this paper share may contribute to improved policy decisions regarding the SBA process in tourism.
Understanding the consumer’s intention to use the e-wallet services
Authors: Ariffin Shaizatulaqma Kamalul , Abd Rahman Mohamad Fakhrul Reza , Muhammad Ali Mughal , Zhang Qi 
Published: December 2021

Purpose
The purpose of this paper is to investigate the key factors that explain intention to use e-wallet services (perceived usefulness, perceived ease of use, attitude, subjective norm, positive disconfirmation and perceived behavioral control). The moderating role of perceived value in the relationship between satisfaction and their intention to continue using the e-wallet is also examined.

Methodology
A total of 257 e-wallet users participated in an online survey and hypotheses were tested with SPSS/PLS-SEM.

Findings
The constructs technology acceptance model (TAM), theory of planned behavior (TPB) and user satisfaction affect intention to use. However, perceived value does not strengthen the relationship between user satisfaction and e-wallet usage intention.

Practical implications
The TAM, TPB and expectancy disconfirmation model (EDM) constructs help explain the use of e-wallet services. These results will help the providers of these services to understand user behavior and to design their marketing strategies more appropriately to ensure consumer satisfaction and their intention to use e-wallet services.

Originality
This study adopts a holistic and integrative approach to explain the continued use of e-wallet services. The model integrates three basic adoption theories: TAM, TPB and EDM.
Effectiveness of offline and online rewards in restoring satisfaction and trust
Authors: Tahir Zonaib 
Published: December 2021

Purpose
This paper aims to compare the relative importance of tangible compensation across the offline and online service mediums, and assess tangible compensation as a trust recovery tactic.

Methodology
This study is based on a 3 (compensation level: 20%, 50%, 100%) × 2 (compensation type: refund, coupon) × 2 (service medium: offline, online) scenario-based experimental design.

Findings
The offline and online customers exhibit different satisfaction for the respective values of both the immediate and delayed compensation types. Moreover, offline customers exhibit more trust in the firm when they receive a refund, whereas their online counterparts demonstrate a higher trust when provided with a coupon.

Practical implications
For a service failure such as the one presented in the experimental study’s scenario, a lower (higher) value coupon will generate more (less) satisfaction compared to providing the same value as a refund. Firms will be better off by providing partial compensation in the form of a coupon, rather than a refund.

Originality
Unlike most studies of service recovery, this research takes into account the perceived differences of various tangible compensations to provide a comparison of offline and online customers’ recovery preferences. Furthermore, the previous studies have not focused on trust restoration and assessed causes and effects of trust based on trust at one point in time i.e. trust after recovery. While this study has included restored trust as a variable in the conceptual model.
Review on the wearable health-care monitoring system with robust motion artifacts reduction techniques
Authors: Prabakaran Aarthy , Rufus Elizabeth 
Published: December 2021

Purpose
Wearables are gaining prominence in the health-care industry and their use is growing. The elderly and other patients can use these wearables to monitor their vitals at home and have them sent to their doctors for feedback. Many studies are being conducted to improve wearable health-care monitoring systems to obtain clinically relevant diagnoses. The accuracy of this system is limited by several challenges, such as motion artifacts (MA), power line interference, false detection and acquiring vitals using dry electrodes. This paper aims to focus on wearable health-care monitoring systems in the literature and provides the effect of MA on the wearable system. Also presents the problems faced while tracking the vitals of users.

Design/methodology/approach
MA is a major concern and certainly needs to be suppressed. An analysis of the causes and effects of MA on wearable monitoring systems is conducted. Also, a study from the literature on motion artifact detection and reduction is carried out and presented here. The benefits of a machine learning algorithm in a wearable monitoring system are also presented. Finally, distinct applications of the wearable monitoring system have been explored.

Findings
According to the study reduction of MA and multiple sensor data fusion increases the accuracy of wearable monitoring systems.

Originality/value
This study also presents the outlines of design modification of dry/non-contact electrodes to minimize the MA. Also, discussed few approaches to design an efficient wearable health-care monitoring system.
Not all trees can make a forest: Tree species composition and competition control forest encroachment in a tropical savanna
Authors: Flake Samuel W. , Honda Eliane A. , Pilon Natashi A. L. , Hoffmann William A. , Durigan Giselda 
Published: December 2021

Abstract

Forest encroachment into savannas is a widespread phenomenon, the rate of which may depend on soil conditions, species composition or changes in stand structure. As savanna specialist trees are replaced by generalist species, rates of stand development may increase. Because generalists can persist in forests, they are likely to grow more quickly and survive longer in dense stands, compared to savanna specialists. Furthermore, the faster growth rates of generalists may allow them to overtop and outcompete savanna specialists, causing rapid species turnover.

We measured growth and survival of 6,147 individuals of 112 species of savanna and generalist tree species over a period of 10 years in an ecological reserve in Assis, São Paulo State, Brazil. We modelled growth and mortality as a function of soil texture and nutrients, tree size, competitive neighbourhood, and membership in savanna or generalist (species which can persist in forests and savannas) functional groups.

Tree growth and survival was strongly influenced by competition, as estimated by the basal area of trees taller than a focal tree. At the stand level, savanna species are unable to contribute basal area growth in closed stands, while generalist species continue to increase in basal area even at high stand basal area. This phenomenon is driven by differences in growth and mortality. Generalists grew faster than savanna species, both in height and diameter. This difference in growth rates led to savanna species becoming suppressed more rapidly than generalists. When suppressed, savanna species were more than twice as likely to die than were generalists. Soils had inconsistent and mostly weak effects which were difficult to separate from gradients of stand structure.

Synthesis. We demonstrate that the presence of generalist trees accelerates the rates of basal area accumulation due to their greater growth rates and tolerance of shading. Generalists outcompete savanna trees by growing faster in the open and overtopping savanna specialists. Due to the slow growth and high mortality of savanna species in the shade, they are unable to form closed‐canopy stands. Accounting for differences among functional types and development of vegetation structure is critical for modelling forest encroachment.
Polyploidy promotes divergent evolution across the leaf economics spectrum and plant edaphic niche in the Dianthus broteri complex
Authors: López‐Jurado Javier , Mateos‐Naranjo Enrique , Balao Francisco 
Published: December 2021

Abstract

The evolution of the leaf economics spectrum (LES) is known to be constrained by genetic relatedness but also promoted at small geographical and phylogenetic scales. In those cases, we hypothesized that polyploidy would play a prominent role as an outstanding source of functional divergence and adaptive potential.

We registered leaf‐level nutrient, water‐ and light‐economy‐related traits from the LES as well as edaphic properties in the four cytotypes of the autopolyploid Dianthus broteri complex (2×, 4×, 6× and 12×). We analysed the effect of ploidy level on the integration of the LES network, checked if concerted evolution occurred between LES and soil niche and tested the influence of phylogeny on the variables. Alternative evolutionary models for both sets of traits were compared.

We found higher divergence of polyploids (especially 6× and 12×) compared to diploids in the LES and soil niche, but these traits are not coevolving. 6× and 12× showed opposite ecological strategies regarding resource use and higher uncoupling of the LES network. Early divergence of traits prevailed in both LES and edaphic niche (supported by better fitted evolutionary models with one optimum per cytotype), but post‐polyploidization processes played an important role for the photochemical behaviour.

Synthesis. Our results indicated shifts in ecological strategies across Dianthus broteri cytotypes and suggested a powerful role of polyploidy in overcoming constraints for the evolution of plant functional traits.
Transcriptional organization and regulation of the Pseudomonas putida flagellar system
Authors: Leal‐Morales Antonio , Pulido‐Sánchez Marta , López‐Sánchez Aroa , Govantes Fernando 
Published: December 2021

SummaryA single region of the Pseudomonas putida genome, designated the flagellar cluster, includes 59 genes potentially involved in the biogenesis and function of the flagellar system. Here, we combine bioinformatics and in vivo gene expression analyses to clarify the transcriptional organization and regulation of the flagellar genes in the cluster. We have identified 11 flagellar operons and characterized 22 primary and internal promoter regions. Our results indicate that synthesis of the flagellar apparatus and core chemotaxis machinery is regulated by a three‐tier cascade in which fleQ is a Class I gene, standing at the top of the transcriptional hierarchy. FleQ‐ and σ54‐dependent Class II genes encode most components of the flagellar structure, part of the chemotaxis machinery and multiple regulatory elements, including the flagellar σ factor FliA. FliA activation of Class III genes enables synthesis of the filament, one stator complex and completion of the chemotaxis apparatus. Accessory regulatory proteins and an intricate operon architecture add complexity to the regulation by providing feedback and feed‐forward loops to the main circuit. Because of the high conservation of the gene arrangement and promoter motifs, we believe that the regulatory circuit presented here may also apply to other environmental pseudomonads.
Undesirable discoloration in edible fish muscle: Impact of indigenous pigments, chemical reactions, processing, and its prevention
Authors: Singh Avtar , Mittal Ajay , Benjakul Soottawat 
Published: December 2021

AbstractFish is rich in proteins and lipids, especially those containing polyunsaturated fatty acids, which made them vulnerable to chemical or microbial changes associated with quality loss. Meat color is one of vital criteria indicating the freshness, quality, and acceptability of the meat. Color of meat is governed by the presence of various pigments such as hemoglobin, myoglobin (Mb), and so on. Mb, particularly oxy‐form, is responsible for the bright red color of fish muscle, especially tuna, and dark fleshed fish, while astaxanthin (AXT) directly determines the color of salmonids muscle. Microbial spoilage and chemical changes such as oxidation of lipid/proteins result in the autoxidation of Mb or fading of AXT, leading to undesirable color with lower acceptability. The discoloration has been affected by chemical composition, post‐harvesting handling or storage, processing, cooking, and so on . To tackle discoloration of fish meat, vacuum or modified atmospheric packaging, low‐ or ultralow‐temperature storage, uses of artificial and natural additives have been employed. This review article provides information regarding the factors affecting color and other quality aspects of fish muscle. Moreover, promising methodologies used to control discoloration are also focused.
The effect of platelet apheresis collection on some immunological factors in donors using two different apheresis devices
Authors: Chegini Azita , Fani Parvaneh , Samiee Shahram , Shaiegan Mojgan , Hajati Esmerdis , Maghari Amirhossein 
Published: December 2021

AbstractIntroductionThe aim of this study was to evaluate and compare two different apheresis and changes in some immunological factors in donors.Material and MethodsThe cross‐sectional study was performed from January 2017 to September 2018. Fifty six male blood donors were randomly divided into two groups. CD4, CD8, and CD25 markers by flow cytometry, and TGFBeta by real‐time polymerase chain reaction (RT‐PCR) method were done before and 7 days after the apheresis procedure. Independent Sample t‐test, Mann–Whitney U Test, Wilcoxon signed ranked test, and Fisher exact test were used.ResultsWBC in MCS+ group after donation is significantly higher than before donation (P < 0.05) but no significant difference was seen between MCS+ and Trima groups in these two indicators. But in CD4, CD25, and TGFBeta, there was no significant difference between the two groups.ConclusionThere was no significant difference on CD4, CD25, and TGFBeta gene 7 days after donation.
Efficacy and safety of bevacizumab combined with EGFR‐TKIs in advanced non‐small cell lung cancer: A meta‐analysis
Authors: Yang Yifan , Wang Liming , Li Xu , Zhang Shuai , Yu Jiangyong , Nie Xin , Liu Wenbo , Wu Xiaonan , Zhang Ping , Li Yi , Li Ailing , Ai Bin 
Published: December 2021

AbstractBackgroundThe aim of this study was to estimate the efficacy and safety of bevacizumab combined with epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKIs) in advanced non‐small cell lung cancer (NSCLC) patients.MethodsWe searched randomized controlled trials (RCTs) on bevacizumab combined with EGFR TKIs in the NSCLC Cochrane Library, Web of Science, PubMed and Embase. The data were extracted and assessed according to the Cochrane Handbook. We calculated the hazard ratio (HR), risk ratio (RR), and confidence interval (CI), and accomplished this meta‐analysis with Stata 14 software.ResultsOf 1301 articles scanned, five articles were involved in this meta‐analysis. We determined that compared with using EGFR TKIs alone, combination treatment significantly prolongs progression‐free survival (PFS) (HR = 0.61, 95% CI = 0.52–0.70; p < 0.001), and increases the objective response rate (ORR) (RR = 1.15, 95% CI: 1.01–1.30, p = 0.10). However, there was no significant difference in overall survival (OS) between the two groups (HR = 0.95, 95% CI = 0.78–1.11; p = <0.001) and combination treatment increases the risks of serious adverse events (SAEs) (RR = 1.58, 95% CI: 1.21–2.05, p = 0.002).ConclusionsBevacizumab combined with EGFR‐TKI significantly improves PFS and ORR in patients with advanced NSCLC, but there is no substantial difference in OS and increase the risks of serious adverse events.