bluuebunny/crossref_metadata_2025_split huggingface dataset:
Response of gut microbiota to feed-borne bacteria depends on fish growth rate: a snapshot survey of farmed juvenileTakifugu obscurus
Authors: Jin Xingkun , Chen Ziwei , Shi Yan , Gui Jian-Fang , Zhao Zhe 
Published: August 2020

ABSTRACTUnderstanding the ecological processes in controlling the assemblage of gut microbiota becomes an essential prerequisite for a more sustainable aquaculture. Here we used 16S rRNA amplicon sequencing to characterize the hindgut microbiota from cultured obscure pufferTakifugu obscurus. The gut microbiota is featured with lower alpha-diversity, greater beta-dispersion and higher average 16S rRNA copy numbers comparing to water and sediment, but far less so to feed. SourceTracker predicted a notable source signature from feed in gut microbiota. Furthermore, effect of varying degrees of feed-associated bacteria on compositional, functional and phylogenetic diversity of gut microbiota were revealed. Coincidently, considerable increase of species richness and feed source proportions both were observed in slow growth fugu, implying a reduced stability in gut microbiota upon bacterial disturbance from feed. Moreover, quantitative ecological analytic framework was applied and the ecological processes underlying such community shift were determined. In the context of lower degree of feed disturbance, homogeneous selection and dispersal limitation largely contribute to the community stability and partial variations among hosts. Whilst with the degree of feed disturbance increased, variable selection leads to an augmented interaction within gut microbiota, entailing community unstability and shift. Altogether, our findings illustrated a clear diversity-function relationships in fugu gut microbiota, and it has implicated in a strong correlation between feed-borne bacteria and host growth rate. These results provide a new insight into aquaculture of fugu and other economically important fishes, as well as a better understanding of host-microbe interactions in the vertebrate gastrointestinal tract.IMPORTANCEEnvironmental bacteria has a great impact on fish gut microbiota, yet little is known as to where fish acquire their gut symbionts, and how gut microbiota response to environmental bacteria. Through the integrative analysis by community profiling and source tracking, we show that feed-associated bacteria can impose a strong disturbance upon fugu gut microbiota. As a result, marked alterations in the composition and function of gut microbiota in slow growth fugu were observed, which is potentially correlated with the host physiological condition such as gastric evacuation rate. Our findings emphasized the intricate linkage between feed and gut microbiota, and highlighted the importance of resolving the feed source signal before the conclusion of comparative analysis of microbiota can be drawn. Our results provide a deeper insight into aquaculture of fugu and other economically important fishes, and have further implications for an improved understanding of host-microbe interactions in the vertebrate gastrointestinal tract.
Loud noise exposure differentially affects subpopulations of auditory cortex pyramidal cells
Authors: Nogueira Ingrid , Winne Jessica , Lima Thiago Z. , Malfatti Thawann , Leao Richardson N. , Leao Katarina E. 
Published: August 2020

ABSTRACTLoud noise-exposure generates tinnitus in both humans and animals. Macroscopic studies show that noise exposure affects the auditory cortex; however, cellular mechanisms of tinnitus generation are unclear. Here we compare membrane properties of layer 5 (L5) pyramidal cells (PCs) of the primary auditory cortex (A1) from control and noise-exposed mice. PCs were previously classified in type A or type B based on connectivity and firing properties. Our analysis based on a logistic regression model predicted that afterhyperpolatization and afterdepolarization following the injection of inward and outward current are enough to predict cell type and these features are preserved after noise trauma. One week after a noise-exposure (4-18kHz, 90dB, 1.5 hr, followed by 1.5hr silence) no passive membrane properties of type A or B PCs were altered but principal component analysis showed greater separation between control/noise-exposure recordings for type A neurons. When comparing individual firing properties, noise exposure differentially affected type A and B PC firing frequency in response to depolarizing current steps. Specifically, type A PCs decreased both initial and steady state firing frequency and type B PCs significantly increased steady state firing frequency following noise exposure. These results show that loud noise can cause distinct effects on type A and B L5 auditory cortex PCs one week following noise exposure. As the type A PC electrophysiological profile is correlated to corticofugal L5 neurons, and type B PCs correlate to contralateral projecting PCs these alterations could partially explain the reorganization of the auditory cortex observed in tinnitus patients.
Synchronization between keyboard typing and neural oscillations
Authors: Duprez J. , Stokkermans M. , Drijvers L. , Cohen M.X 
Published: August 2020

AbstractRhythmic neural activity synchronizes with certain rhythmic behaviors, such as breathing, sniffing, saccades, and speech. The extent to which neural oscillations synchronize with higher-level and more complex behaviors is largely unknown. Here we investigated electrophysiological synchronization with keyboard typing, which is an omnipresent behavior daily engaged by an uncountably large number of people. Keyboard typing is rhythmic with frequency characteristics roughly the same as neural oscillatory dynamics associated with cognitive control, notably through midfrontal theta (4 -7 Hz) oscillations. We tested the hypothesis that synchronization occurs between typing and midfrontal theta, and breaks down when errors are committed. Thirty healthy participants typed words and sentences on a keyboard without visual feedback, while EEG was recorded. Typing rhythmicity was investigated by inter-keystroke interval analyses and by a kernel density estimation method. We used a multivariate spatial filtering technique to investigate frequency-specific synchronization between typing and neuronal oscillations. Our results demonstrate theta rhythmicity in typing (around 6.5 Hz) through the two different behavioral analyses. Synchronization between typing and neuronal oscillations occurred at frequencies ranging from 4 to 15 Hz, but to a larger extent for lower frequencies. However, peak synchronization frequency was idiosyncratic across subjects, therefore not specific to theta nor to midfrontal regions, and correlated somewhat with peak typing frequency. Errors and trials associated with stronger cognitive control were not associated with changes in synchronization at any frequency. As a whole, this study shows that brain-behavior synchronization does occur during keyboard typing but is not specific to midfrontal theta.Significance statementEvery day, millions of people type on keyboards. Keyboard typing is a rhythmic behavior, with inter-keystroke-intervals of around 135 ms (~7 Hz), which is roughly the same frequency as the brain rhythm implicated in cognitive control (“theta” band, ~6 Hz). Here we investigated the hypothesis that the EEG signature of cognitive control is synchronized with keyboard typing. By recording EEG during typing in 30 healthy subjects we showed that keyboard typing indeed follows theta rhythmicity, and that synchronization between typing and neural oscillations occurs. However, synchronization was not limited to theta but occurred at frequencies ranging from 4 to 15 Hz, and in several regions. Brain-behavior synchronization during typing thus seems more nuanced and complex than we originally hypothesized.
Unpacking the problems behind the limited green construction adoption: towards a theoretical model
Authors: Hammond Samuel Fiifi , Gajendran Thayaparan , Savage David A. , Maund Kim 
Published: August 2020

PurposeGiven the importance of green construction for reducing the negative environmental impact of the construction industry, and the numerous policies instituted by governments around the world to motivate building construction stakeholders, why is there still a limited level of adoption?Design/methodology/approachBuilding on studies that have questioned the dominant framing of the limited adoption of green construction as an inefficient behaviour, this study proposes a theoretical model characterising the two problems in the decision-making process that boost the reluctance of building construction stakeholders to embrace green construction. A traditional literature review, combining deductive and inductive approaches was employed.FindingsThe theoretical model consists of six conceptual variables as follows: social norms, personal dilemma, trust, loss aversion, self-interest and green construction adoption. The expected relationships between them are also provided.Research limitations/implicationsThe theoretical model has not been empirically tested; however, it can be replicated or adapted for empirical investigation in any context.Practical implicationsThis study may help in identifying which factors must be given attention in policy-making in order to promote the adoption of green technologies and practices. Specifically, subjecting the theoretical model to empirical test will reveal the strongest paths that can be used to curtail the reluctance of the industry to embrace green construction.Originality/valueContributes towards the current research agenda on the reasons for the low level of voluntary adoption of green construction. It also provides theoretical answers to the questions regarding the limited impact of the plentiful policy mechanisms instituted by governments around the world to promote green construction adoption.
Mapping the interrelationships between community assets
Authors: McPherson Matthew Q. , Friesner Daniel , Bozman Carl S. 
Published: August 2020

PurposeCommunity asset mapping (CAM) is an evidence-based activity commonly used in local socioeconomic development initiatives. Residents and other stakeholders collaboratively identify the resources that they deem most important to the vitality of their community. Results are depicted qualitatively using maps. While maps are a useful means to convey information, alternate approaches to summarize data drawn from CAM activities may yield additional inferences that better inform community development initiatives.Design/methodology/approachThis study conducted a retrospective analysis of secondary, de-identified data collected from the 2015–2016 Gonzaga University Logan Neighborhood Asset Mapping Project. Hierarchical and nonhierarchical cluster analyses were used to establish interrelationships between the perceived importance of various community assets.FindingsThe hierarchical cluster analysis revealed a very intuitive hierarchical clustering of community assets, with various health care services tightly clustered together. Similarly, farmers’ markets, community gardens and meeting spaces were clustered closely together. Third, community education and care services for all age groups were clustered together. The nonhierarchical cluster analysis revealed intuitive clustering of respondent groups who valued particular sets of assets.Originality/valueBy identifying these clusters and characterizing the linkages between them, it is possible to fund multiple development initiatives that are mutually reinforcing. For example, if the neighborhood obtains funds to invest, then they could be used to facilitate both community gardens and farmers’ markets, two closely related activities. Additional physical locations might also be developed to support (possibly outdoor) meeting space.Peer reviewThe peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-04-2020-0206.
The COVID-19 pandemic and the public health challenges in Bangladesh: a commentary
Authors: Haque Amlan 
Published: August 2020

PurposeThe purpose of this paper is to highlight the current pandemic situation of coronavirus disease 2019 (COVID-19) in Bangladesh, how the Government is managing this unprecedented condition and encountering these increasing public health challenges.Design/methodology/approachThis paper is a viewpoint of the current COVID-19 pandemic situation in Bangladesh.FindingsAs one of the most densely populated countries, Bangladesh is vulnerable to COVID-19. Currently, the infection of COVID-19 is spreading fast and started to capture all the parts of Bangladesh. The Government of Bangladesh has already taken several preventive measures to overcome the pandemic such as declaring hotspots of COVID-19 and setting lockdowns, increasing mass awareness through social media and satellite TV channels. They are also encouraging private and community healthcare initiatives to increase hospital beds and COVID-19 treatment facilities. Besides, the Government has deployed defence force and additional health workers and increased public holidays to reduce the number of coronavirus infections. However, both the number of infected people and the death toll is rising, and there are growing challenges that the Government and public healthcare professions need to overcome.Originality/valueThis paper delivers information about the present developing situation of COVID-19 in Bangladesh, how the Government is handling and public health challenges that have raised. This paper can be helpful for the policymakers and Government officials for effective public health interventions.
The impact of tourists' emotions on satisfaction and destination loyalty – an integrative moderated mediation model: tourists' experience in Switzerland
Authors: Al‐Msallam Samaan 
Published: August 2020

PurposeThe purpose of this paper is to investigate the effect of tourists' emotional responses toward a particular destination on tourists' satisfaction and destination loyalty. Perceived quality adds as a moderator variable.Design/methodology/approachThis study adopted a quantitative data collection method, with distributing the questionnaire to 346 tourists of 43 nationalities in four main tourist attractions in Switzerland. The structural equation modeling approach and bootstrapping technique were used to empirically test the study hypotheses.FindingsThe results confirm the negative impact of negative emotions. The mediating role of the tourists' satisfaction was documented. As expected, perceived quality dampened the negative effect of negative emotions on tourists' satisfaction. However, surprisingly, it does not serve as a moderator in the relationship between positive emotions and tourists' satisfaction.Practical implicationsThis study resulted in a set of practical marketing recommendations. Tourism marketers are encouraged to keep positive emotions high among tourists, aimed to increase their satisfaction toward the destination and revisit it again in the future and also, pay more attention to the quality of the destination as an essential tool to reduce the impact of negative emotions.Originality/valueMany studies in tourism literature studied associations between positive emotions and tourists' behavior. The present study is drawing more attention to negative emotions. In addition, this study tries to address the gap in the tourism literature regarding the modified impact of perceived quality on the relationship between emotions and tourists' satisfaction.
Mitigating loneliness with companion robots in the COVID-19 pandemic and beyond: an integrative framework and research agenda
Authors: Odekerken-Schröder Gaby , Mele Cristina , Russo-Spena Tiziana , Mahr Dominik , Ruggiero Andrea 
Published: August 2020

PurposeLoneliness and isolation are on the rise, globally threatening the well-being across age groups; global social distancing measures during the COVID-19 crisis have intensified this so-called “loneliness virus”. The purpose of this paper is to develop an integrative framework and research agenda on the role of companion robots in mitigating feelings of loneliness.Design/methodology/approachA netnographic analysis of 595 online visual and textual descriptions offer empirical insights about the role of the companion robot Vector during the COVID-19 pandemic.FindingsThe contributions of this study are twofold. First, it postulates that companion robots have the potential of mitigating feelings of loneliness (i.e. indicator of well-being). Second, this study contributes to transformative service by developing an integrative framework introducing the roles (personal assistant, relational peer and intimate buddy) that companion robots can fulfill to mitigate feelings of loneliness through building different types of supportive relationships.Research limitations/implicationsThe proposed research agenda encourages future service scholars to investigate 1) the role of robots in addressing loneliness, 2) design features that drive adoption of robots, 3) social support for different groups, 4) the operationalization and the measurement of loneliness and 5) an impact analysis of companion robots.Practical implicationsService providers and policy makers can leverage the insights about how companion robots can help reduce a sense of loneliness.Originality/valueThe integrative framework on loneliness reduction, based on 595 unprompted online contributions issued during the COVID-19 pandemic, offers initial evidence for the impact of companion robots in reducing people's feelings of loneliness.
Toward a goal-oriented view of customer journeys
Authors: Becker Larissa , Jaakkola Elina , Halinen Aino 
Published: August 2020

PurposeCustomer experience research predominantly anchors the customer journey on a specific offering, implying an inherently firm-centric perspective. Attending calls for a more customer-centric approach, this study aims to develop a goal-oriented view of customer journeys.Design/methodology/approachThis study interprets the results of a phenomenological study of a transformative journey toward a sober life with the self-regulation model of behavior to advance understanding of customer journeys.FindingsThe consumer's journey toward a higher-order goal encompasses various customer journeys toward subordinate goals, through which consumers engage in iterative cognitive and behavioral processes to adjust or maintain their experienced situation vis-à-vis the goal. Experiences drive behavior toward the goal. It follows that negative experiences may contribute to goal attainment.Research limitations/implicationsThis study highlights the importance of looking at the consumers' higher-order goals to obtain a more holistic understanding of the customer journey.Practical implicationsCompanies and organizations should extend their view beyond the immediate goals of their customers to identify relevant touchpoints and other customer journeys that affect the customer experience.Originality/valueThis study proposes conceptualization of the customer journey, comprising goal-oriented processes at different hierarchical levels, and it demonstrates how positive and negative customer experiences spur behaviors toward the higher-order consumer goal. This conceptualization enables a more customer-centric perspective on journeys.
Corporate governance disclosures by Spanish universities: how different variables can affect the level of such disclosures?
Authors: Andrades Javier , Martinez-Martinez Domingo , Larrán Jorge Manuel 
Published: August 2020

Purpose
This paper aims to examine how the level of corporate governance disclosures by Spanish universities is influenced by a set of variables.

Design/methodology/approach
To do this, the authors carried out a content analysis of the website disclosures of all Spanish universities identified by the Universities Rectors’ Conference in Spain.

Findings
Results show that the amount of corporate governance information disclosed by Spanish universities is far from being adequate and does not meet the stakeholders’ demands, as well as those requirements imposed by the law. The findings have revealed that the most influential variables associated with better disclosure levels of corporate governance information are the public–private status and institution size.

Originality/value
Compared to the private sector, the researchers have paid less attention to corporate governance disclosures in universities. In the Spanish university context, there is limited literature on the level of corporate governance disclosures.
Corporate social responsibility, organizational trust and commitment: a moderated mediation model
Authors: George Nimmy A. , Aboobaker Nimitha , Edward Manoj 
Published: August 2020

PurposeDrawing from the deontic justice theory and the social exchange theory, the purpose of this study attempts to identify the relationship between perceived corporate social responsibility (CSR) and employees' affective commitment, mediated through organizational trust. Furthermore, the authors seek to understand how the attitude of employees toward the importance of CSR, moderates the aforementioned relationship.Design/methodology/approachThe respondents for this descriptive study were drawn from a sample of 500 employees working in manufacturing companies in India. Self-reporting questionnaires were administered among the respondents, who were selected through the judgment sampling method. Measurement model analysis was done using IBM AMOS 21.0 and path analytic procedures using PROCESS 3.0 macro was used to test the proposed hypotheses.FindingsResults revealed that there is a significant indirect effect of all three dimensions of CSR on affective commitment, through organizational trust. The conditional indirect effects varied significantly, and it was identified that both employee-CSR and customer-CSR had a significant indirect effect on employee affective commitment. However, social/nonsocial CSR did not have a conditional indirect effect on affective commitment, through attitude toward the importance of CSR and organizational trust.Research limitations/implicationsThe cross-sectional nature of the study does not allow inference of causality and pose limitations for generalization of results. Though the limitation of common method bias is inherent in studies with self-reporting measures, the authors adopted several procedural remedies to minimize its effect. The study results, particularly the role of attitude toward the importance of CSR need to be tested among employees in different industry sectors. Future studies should examine the same theoretical model in different nations, where CSR activities are not mandated by law.Originality/valueThis study is pioneering in conceptualizing and empirically testing a theoretical model that examined the combined influence of perceived CSR, employees' attitude toward the importance of CSR and organizational trust on their affective commitment toward the organization. This study extends the literature by examining the indirect/mechanisms linking CSR and employees' affective commitment. Exploring more on the employee individual differences and its influence on organizational outcomes will definitely improve individual and organizational functioning.