Showing papers by "University of North Carolina at Greensboro published in 2018"
TL;DR: This paper examines how blockchain is likely to affect key supply chain management objectives such as cost, quality, speed, dependability, risk reduction, sustainability and flexibility and illustrates the various mechanisms by which blockchain help achieve the above supply chain objectives.
1,076 citations
TL;DR: A whole-brain network associated with high-creative ability comprised of cortical hubs within default, salience, and executive systems—intrinsic functional networks that tend to work in opposition is identified, suggesting that highly creative people are characterized by the ability to simultaneously engage these large-scale brain networks.
Abstract: People’s ability to think creatively is a primary means of technological and cultural progress, yet the neural architecture of the highly creative brain remains largely undefined. Here, we employed a recently developed method in functional brain imaging analysis—connectome-based predictive modeling—to identify a brain network associated with high-creative ability, using functional magnetic resonance imaging (fMRI) data acquired from 163 participants engaged in a classic divergent thinking task. At the behavioral level, we found a strong correlation between creative thinking ability and self-reported creative behavior and accomplishment in the arts and sciences (r = 0.54). At the neural level, we found a pattern of functional brain connectivity related to high-creative thinking ability consisting of frontal and parietal regions within default, salience, and executive brain systems. In a leave-one-out cross-validation analysis, we show that this neural model can reliably predict the creative quality of ideas generated by novel participants within the sample. Furthermore, in a series of external validation analyses using data from two independent task fMRI samples and a large task-free resting-state fMRI sample, we demonstrate robust prediction of individual creative thinking ability from the same pattern of brain connectivity. The findings thus reveal a whole-brain network associated with high-creative ability comprised of cortical hubs within default, salience, and executive systems—intrinsic functional networks that tend to work in opposition—suggesting that highly creative people are characterized by the ability to simultaneously engage these large-scale brain networks.
490 citations
TL;DR: Some blockchain-enabled e-voting implementations and the approach’s potential benefits and challenges are highlighted.
Abstract: Blockchain-enabled e-voting (BEV) could reduce voter fraud and increase voter access. Eligible voters cast a ballot anonymously using a computer or smartphone. BEV uses an encrypted key and tamper-proof personal IDs. This article highlights some BEV implementations and the approach’s potential benefits and challenges.
284 citations
TL;DR: This work suggests that mind-wandering is best considered from a family-resemblances perspective, which entails treating it as a graded, heterogeneous construct and clearly measuring and describing the specific aspect(s) of mind-Wandering that researchers are investigating.
240 citations
TL;DR: While microplastic concentration in theseEstuaries was comparable to that reported for other estuaries worldwide, Charleston Harbor contained a high abundance of black microplastics fragments believed to be tire wear particles, and Winyah Bay contained significantly moremicroplastics in the sea surface microlayer.
199 citations
University College London1, University of Massachusetts Boston2, International Institute for Applied Systems Analysis3, Leiden University4, University of North Carolina at Greensboro5, National University of Singapore6, Columbia University7, Potsdam Institute for Climate Impact Research8, Utrecht University9, Netherlands Environmental Assessment Agency10
TL;DR: In this paper, the authors discuss a five-nodes definition of a nexus and propose perspectives that may lead to a reload of climate policy with buy-in from supply-chain managers and resource-rich developing countries.
Abstract: Debate around increasing demand for natural resources is often framed in terms of a ‘nexus’, which is perhaps at risk of becoming a buzz word. A nexus between what? Over what scales? And what are the consequences of such a nexus? This article analyses why readers should care about the nexus concept in relation to the United Nations Sustainable Development Goals (SDGs). We discuss a five-nodes definition and propose perspectives that may lead to a reload of climate policy with buy-in from supply-chain managers and resource-rich developing countries. Our research perspectives address modelling approaches and scenarios at the interface of bio-physical inputs and the human dimensions of security and governance.
193 citations
TL;DR: In this paper, a cross-day relationship between creative activity, affect, and flourishing was examined, and it was found that people felt higher activated positive affect and flourishing following days when they reported more creative activity than usual.
Abstract: Recent experience sampling and diary studies have shown that spending time on creative goals during a day is associated with higher activated positive affect (PA) on that day. Based on models of creativity as a tool for promoting well-being, the present study examined cross-day relationships between creative activity, affect, and flourishing. A large sample of young adults (n = 658) took part in a 13-day daily diary study. Each day, they reported how much time they spent on creative activities, daily positive and negative affect, and daily flourishing. Lagged multilevel models revealed that people felt higher activated PA and flourishing following days when they reported more creative activity than usual. The other direction – PA predicting next-day creative activity – was not supported, suggesting that the cross-day effect was specific to creative activity predicting well-being. Overall, these findings support the emerging emphasis on everyday creativity as a means of cultivating positive psychol...
165 citations
TL;DR: A recently developed in virtual reality (VR) and augmented reality (AR) starting of the dental history to the progress of the dentist skill and the augmented reality simulator used to evaluate.
Abstract: The OSCE is a reliable evaluation method to estimate the preclinical examination of dental students. The most ideal assessment for OSCE is used the augmented reality simulator to evaluate. This literature review investigated a recently developed in virtual reality (VR) and augmented reality (AR) starting of the dental history to the progress of the dental skill. As result of the lacking of technology, it needs to depend on other device increasing the success rate and decreasing the risk of the surgery. The development of tracking unit changed the surgical and educational way. Clinical surgery is based on mature education. VR and AR simultaneously affected the skill of the training lesson and navigation system. Widely, the VR and AR not only applied in the dental training lesson and surgery, but also improved all field in our life.
158 citations
University of Pretoria1, Biotec2, Universidade Federal de Viçosa3, Federal University of Rio Grande do Norte4, Rovira i Virgili University5, Spanish National Research Council6, Russian Academy of Sciences7, Royal Botanic Gardens8, Eötvös Loránd University9, University of the Free State10, State University of Feira de Santana11, Naturalis12, Federal University of Pernambuco13, Ministry for Primary Industries14, Uppsala University15, University of Tartu16, Franklin & Marshall College17, Florida Museum of Natural History18, CABI19, Pontificia Universidad Católica del Ecuador20, University of Maryland College of Agriculture and Natural Resources21, Moscow State University22, University of Vienna23, Chinese Academy of Sciences24, Universidad Mayor25, University of Illinois at Urbana–Champaign26, Valparaiso University27, United States Department of Agriculture28, Harvard University29, University of North Carolina at Greensboro30, University of Oslo31, University of Palermo32, Agriculture and Agri-Food Canada33, Federal University of Bahia34, University of Antofagasta35
TL;DR: Novel species of fungi described in this study include those from various countries as follows: Angola, Gnomoniopsis angolensis and Pseudopithomyces anglensis on unknown host plants.
Abstract: Novel species of fungi described in this study include those from various countries as follows: Angola, Gnomoniopsis angolensis and Pseudopithomyces angolensis on unknown host plants. Australia, Dothiora corymbiae on Corymbia citriodora, Neoeucasphaeria eucalypti (incl. Neoeucasphaeria gen. nov.) on Eucalyptus sp., Fumagopsis stellae on Eucalyptus sp., Fusculina eucalyptorum (incl. Fusculinaceae fam. nov.) on Eucalyptus socialis, Harknessia corymbiicola on Corymbia maculata, Neocelosporium eucalypti (incl. Neocelosporium gen. nov., Neocelosporiaceae fam. nov. and Neocelosporiales ord. nov.) on Eucalyptus cyanophylla, Neophaeomoniella corymbiae on Corymbia citriodora, Neophaeomoniella eucalyptigena on Eucalyptus pilularis, Pseudoplagiostoma corymbiicola on Corymbia citriodora, Teratosphaeria gracilis on Eucalyptus gracilis, Zasmidium corymbiae on Corymbia citriodora. Brazil, Calonectria hemileiae on pustules of Hemileia vastatrix formed on leaves of Coffea arabica, Calvatia caatinguensis on soil, Cercospora solani-betacei on Solanum betaceum, Clathrus natalensis on soil, Diaporthe poincianellae on Poincianella pyramidalis, Geastrum piquiriunense on soil, Geosmithia carolliae on wing of Carollia perspicillata, Henningsia resupinata on wood, Penicillium guaibinense from soil, Periconia caespitosa from leaf litter, Pseudocercospora styracina on Styrax sp., Simplicillium filiforme as endophyte from Citrullus lanatus, Thozetella pindobacuensis on leaf litter, Xenosonderhenia coussapoae on Coussapoa floccosa. Canary Islands (Spain), Orbilia amarilla on Euphorbia canariensis. Cape Verde Islands, Xylodon jacobaeus on Eucalyptus camaldulensis. Chile, Colletotrichum arboricola on Fuchsia magellanica. Costa Rica, Lasiosphaeria miniovina on tree branch. Ecuador, Ganoderma chocoense on tree trunk. France, Neofitzroyomyces nerii (incl. Neofitzroyomyces gen. nov.) on Nerium oleander. Ghana, Castanediella tereticornis on Eucalyptus tereticornis, Falcocladium africanum on Eucalyptus brassiana, Rachicladosporium corymbiae on Corymbia citriodora. Hungary, Entoloma silvae-frondosae in Carpinus betulus-Pinus sylvestris mixed forest. Iran, Pseudopyricularia persiana on Cyperus sp. Italy, Inocybe roseascens on soil in mixed forest. Laos, Ophiocordyceps houaynhangensis on Coleoptera larva. Malaysia, Monilochaetes melastomae on Melastoma sp. Mexico, Absidia terrestris from soil. Netherlands, Acaulium pannemaniae, Conioscypha boutwelliae, Fusicolla septimanifiniscientiae, Gibellulopsis simonii, Lasionectria hilhorstii, Lectera nordwiniana, Leptodiscella rintelii, Parasarocladium debruynii and Sarocladium dejongiae (incl. Sarocladiaceae fam. nov.) from soil. New Zealand, Gnomoniopsis rosae on Rosa sp. and Neodevriesia metrosideri on Metrosideros sp. Puerto Rico, Neodevriesia coccolobae on Coccoloba uvifera, Neodevriesia tabebuiae and Alfaria tabebuiae on Tabebuia chrysantha. Russia, Amanita paludosa on bogged soil in mixed deciduous forest, Entoloma tiliae in forest of Tilia × europaea, Kwoniella endophytica on Pyrus communis. South Africa, Coniella diospyri on Diospyros mespiliformis, Neomelanconiella combreti (incl. Neomelanconiellaceae fam. nov. and Neomelanconiella gen. nov.) on Combretum sp., Polyphialoseptoria natalensis on unidentified plant host, Pseudorobillarda bolusanthi on Bolusanthus speciosus, Thelonectria pelargonii on Pelargonium sp. Spain, Vermiculariopsiella lauracearum and Anungitopsis lauri on Laurus novocanariensis, Geosmithia xerotolerans from a darkened wall of a house, Pseudopenidiella gallaica on leaf litter. Thailand, Corynespora thailandica on wood, Lareunionomyces loeiensis on leaf litter, Neocochlearomyces chromolaenae (incl. Neocochlearomyces gen. nov.) on Chromolaena odorata, Neomyrmecridium septatum (incl. Neomyrmecridium gen. nov.), Pararamichloridium caricicola on Carex sp., Xenodactylaria thailandica (incl. Xenodactylariaceae fam. nov. and Xenodactylaria gen. nov.), Neomyrmecridium asiaticum and Cymostachys thailandica from unidentified vine. USA, Carolinigaster bonitoi (incl. Carolinigaster gen. nov.) from soil, Penicillium fortuitum from house dust, Phaeotheca shathenatiana (incl. Phaeothecaceae fam. nov.) from twig and cone litter, Pythium wohlseniorum from stream water, Superstratomyces tardicrescens from human eye, Talaromyces iowaense from office air. Vietnam, Fistulinella olivaceoalba on soil. Morphological and culture characteristics along with DNA barcodes are provided.
137 citations
University of Pretoria1, Murdoch University2, Federal University of Rio Grande do Norte3, State University of Feira de Santana4, Federal University of Pernambuco5, Ministry for Primary Industries6, Slovak Academy of Sciences7, Pontificia Universidad Católica del Ecuador8, University of Murcia9, University of Turin10, Charles University in Prague11, Spanish National Research Council12, Lille University of Science and Technology13, University of Kurdistan14, Universidade Federal de Viçosa15, Moscow State University16, University of Chile17, University of Saskatchewan18, University of Montpellier19, National Institute of Amazonian Research20, American Museum of Natural History21, Federal University of Bahia22, Universidade de Pernambuco23, Eötvös Loránd University24, University of Sydney25, La Trobe University26, Federal University of Alagoas27, University of Illinois at Urbana–Champaign28, Universidad Mayor29, Illinois Natural History Survey30, Russian Academy of Sciences31, Kitasato University32, University of North Carolina at Greensboro33, Szent István University34, United States Department of Agriculture35, Silesian Museum36, University of Gujrat37, University of Southern Queensland38, Royal Botanic Gardens39, Pedagogical University40, Hazara University41, Universidade Federal do Rio Grande do Sul42, University of Antofagasta43, Urmia University44
TL;DR: Novel species of fungi described in this study include those from various countries as follows: Australia, Chaetopsina eucalyPTi on Eucalyptus leaf litter, Colletotrichum cobbittiense from Cordyline stricta × C. australis hybrid.
Abstract: Novel species of fungi described in this study include those from various countries as follows: Australia, Chaetopsina eucalypti on Eucalyptus leaf litter, Colletotrichum cobbittiense from Cordyline stricta × C. australis hybrid, Cyanodermella banksiae on Banksia ericifolia subsp. macrantha, Discosia macrozamiae on Macrozamia miquelii, Elsinoe banksiigena on Banksia marginata, Elsinoe elaeocarpi on Elaeocarpus sp., Elsinoe leucopogonis on Leucopogon sp., Helminthosporium livistonae on Livistona australis, Idriellomyces eucalypti (incl. Idriellomyces gen. nov.) on Eucalyptus obliqua, Lareunionomyces eucalypti on Eucalyptus sp., Myrotheciomyces corymbiae (incl. Myrotheciomyces gen. nov., Myrotheciomycetaceae fam. nov.), Neolauriomyces eucalypti (incl. Neolauriomyces gen. nov., Neolauriomycetaceae fam. nov.) on Eucalyptus sp., Nullicamyces eucalypti (incl. Nullicamyces gen. nov.) on Eucalyptus leaf litter, Oidiodendron eucalypti on Eucalyptus maidenii, Paracladophialophora cyperacearum (incl. Paracladophialophoraceae fam. nov.) and Periconia cyperacearum on leaves of Cyperaceae, Porodiplodia livistonae (incl. Porodiplodia gen. nov., Porodiplodiaceae fam. nov.) on Livistona australis, Sporidesmium melaleucae (incl. Sporidesmiales ord. nov.) on Melaleuca sp., Teratosphaeria sieberi on Eucalyptus sieberi, Thecaphora australiensis in capsules of a variant of Oxalis exilis. Brazil, Aspergillus serratalhadensis from soil, Diaporthe pseudoinconspicua from Poincianella pyramidalis, Fomitiporella pertenuis on dead wood, Geastrum magnosporum on soil, Marquesius aquaticus (incl. Marquesius gen. nov.) from submerged decaying twig and leaves of unidentified plant, Mastigosporella pigmentata from leaves of Qualea parviflorae, Mucor souzae from soil, Mycocalia aquaphila on decaying wood from tidal detritus, Preussia citrullina as endophyte from leaves of Citrullus lanatus, Queiroziella brasiliensis (incl. Queiroziella gen. nov.) as epiphytic yeast on leaves of Portea leptantha, Quixadomyces cearensis (incl. Quixadomyces gen. nov.) on decaying bark, Xylophallus clavatus on rotten wood. Canada, Didymella cari on Carum carvi and Coriandrum sativum. Chile, Araucasphaeria foliorum (incl. Araucasphaeria gen. nov.) on Araucaria araucana, Aspergillus tumidus from soil, Lomentospora valparaisensis from soil. Colombia, Corynespora pseudocassiicola on Byrsonima sp., Eucalyptostroma eucalyptorum on Eucalyptus pellita, Neometulocladosporiella eucalypti (incl. Neometulocladosporiella gen. nov.) on Eucalyptus grandis × urophylla, Tracylla eucalypti (incl. Tracyllaceae fam. nov., Tracyllalales ord. nov.) on Eucalyptus urophylla. Cyprus, Gyromitra anthracobia (incl. Gyromitra subg. Pseudoverpa) on burned soil. Czech Republic, Lecanicillium restrictum from the surface of the wooden barrel, Lecanicillium testudineum from scales of Trachemys scripta elegans. Ecuador, Entoloma yanacolor and Saproamanita quitensis on soil. France, Lentithecium carbonneanum from submerged decorticated Populus branch. Hungary, Pleuromyces hungaricus (incl. Pleuromyces gen. nov.) from a large Fagus sylvatica log. Iran, Zymoseptoria crescenta on Aegilops triuncialis. Malaysia, Ochroconis musicola on Musa sp. Mexico, Cladosporium michoacanense from soil. New Zealand, Acrodontium metrosideri on Metrosideros excelsa, Polynema podocarpi on Podocarpus totara, Pseudoarthrographis phlogis (incl. Pseudoarthrographis gen. nov.) on Phlox subulata. Nigeria, Coprinopsis afrocinerea on soil. Pakistan, Russula mansehraensis on soil under Pinus roxburghii. Russia, Baorangia alexandri on soil in deciduous forests with Quercus mongolica. South Africa, Didymocyrtis brachylaenae on Brachylaena discolor. Spain, Alfaria dactylis from fruit of Phoenix dactylifera, Dothiora infuscans from a blackened wall, Exophiala nidicola from the nest of an unidentified bird, Matsushimaea monilioides from soil, Terfezia morenoi on soil. United Arab Emirates, Tirmania honrubiae on soil. USA, Arxotrichum wyomingense (incl. Arxotrichum gen. nov.) from soil, Hongkongmyces snookiorum from submerged detritus from a fresh water fen, Leratiomyces tesquorum from soil, Talaromyces tabacinus on leaves of Nicotiana tabacum. Vietnam, Afroboletus vietnamensis on soil in an evergreen tropical forest, Colletotrichum condaoense from Ipomoea pes-caprae. Morphological and culture characteristics along with DNA barcodes are provided.
137 citations
TL;DR: Key concerns that have been raised regarding institutions in the developing world are discussed and the potential role of blockchain to address them is evaluated.
Abstract: A large proportion of the population in the developing world can benefit from blockchain. In this article, the authors discuss key concerns that have been raised regarding institutions in the developing world and evaluate the potential role of blockchain to address them.
TL;DR: In this paper, a longitudinal critical ethnographic study traces the development of 41 youth maker projects in two community-centered making programs and discusses the ways in which making with and in community opened opportunities for youth to project their communities' rich culture knowledge and wisdom onto their making while also troubling and negotiating the historicized injustices they experience.
Abstract: The maker movement has evoked interest for its role in breaking down barriers to STEM learning. However, few empirical studies document how youth are supported over time in STEM-rich making projects or their outcomes. This longitudinal critical ethnographic study traces the development of 41 youth maker projects in two community-centered making programs. Building a conceptual argument for an equity-oriented culture of making, the authors discuss the ways in which making with and in community opened opportunities for youth to project their communities’ rich culture knowledge and wisdom onto their making while also troubling and negotiating the historicized injustices they experience. The authors also discuss how community engagement legitimized a practice of co-making, which supported equity-oriented goals and outcomes.
TL;DR: Implementing ACL injury-prevention training programs may improve an individual's neuromuscular control and lower extremity biomechanics and thereby reduce the risk of injury.
Abstract: Objective: To provide certified athletic trainers, physicians, and other health care and fitness professionals with recommendations based on current evidence regarding the prevention of noncontact and indirect-contact anterior cruciate ligament (ACL) injuries in athletes and physically active individuals. Background: Preventing ACL injuries during sport and physical activity may dramatically decrease medical costs and long-term disability. Implementing ACL injury-prevention training programs may improve an individual's neuromuscular control and lower extremity biomechanics and thereby reduce the risk of injury. Recent evidence indicates that ACL injuries may be prevented through the use of multicomponent neuromuscular-training programs. Recommendations: Multicomponent injury-prevention training programs are recommended for reducing noncontact and indirect-contact ACL injuries and strongly recommended for reducing noncontact and indirect-contact knee injuries during physical activity. These programs are...
University of North Carolina at Greensboro1, Colorado State University2, University of California, Santa Barbara3, New Mexico State University4, Johns Hopkins University5, University of New Mexico6, University of California, Davis7, Northeastern University8, University of the Witwatersrand9, Wake Forest University10, University of Agriculture, Faisalabad11, Hawassa University12, Indian Institute of Science13, Utah State University14, Montana State University15, United States Geological Survey16, University of Central Florida17, Archbold Biological Station18, International Trademark Association19, University of Buenos Aires20, Northwest A&F University21, University of Grenoble22, Office of Environment and Heritage23, University of New South Wales24, University of Texas at Austin25, University of La Laguna26, Thompson Rivers University27, Dalhousie University28, University of Wyoming29, University of Nebraska–Lincoln30, Nelson Mandela Metropolitan University31, University of Jyväskylä32, University of the Republic33, National Scientific and Technical Research Council34, La Trobe University35, University of Groningen36, University of Florida37, University of Alcalá38, The Nature Conservancy39, Swiss Federal Institute for Forest, Snow and Landscape Research40, Spanish National Research Council41, National Centre for Biological Sciences42, University of Leeds43, Yokohama National University44, Federation University Australia45, Technische Universität Darmstadt46, North-West University47, University of Wisconsin–Green Bay48, Agricultural Research Service49, Ghent University50, Kent State University51, Chinese Academy of Sciences52
TL;DR: It is shown that herbivore-induced change in dominance, independent of site productivity or precipitation (a proxy for productivity), is the best predictor of Herbivore effects on biodiversity in grassland and savannah sites.
Abstract: Herbivores alter plant biodiversity (species richness) in many of the world's ecosystems, but the magnitude and the direction of herbivore effects on biodiversity vary widely within and among ecosystems. One current theory predicts that herbivores enhance plant biodiversity at high productivity but have the opposite effect at low productivity. Yet, empirical support for the importance of site productivity as a mediator of these herbivore impacts is equivocal. Here, we synthesize data from 252 large-herbivore exclusion studies, spanning a 20-fold range in site productivity, to test an alternative hypothesis-that herbivore-induced changes in the competitive environment determine the response of plant biodiversity to herbivory irrespective of productivity. Under this hypothesis, when herbivores reduce the abundance (biomass, cover) of dominant species (for example, because the dominant plant is palatable), additional resources become available to support new species, thereby increasing biodiversity. By contrast, if herbivores promote high dominance by increasing the abundance of herbivory-resistant, unpalatable species, then resource availability for other species decreases reducing biodiversity. We show that herbivore-induced change in dominance, independent of site productivity or precipitation (a proxy for productivity), is the best predictor of herbivore effects on biodiversity in grassland and savannah sites. Given that most herbaceous ecosystems are dominated by one or a few species, altering the competitive environment via herbivores or by other means may be an effective strategy for conserving biodiversity in grasslands and savannahs globally.
TL;DR: The happy nation has low power distance and low uncertainty avoidance, but is high in femininity and individualism, and these effects are interrelated but still partially independent from political and economic institutions.
Abstract: Do cultural values enhance financial and subjective well-being (SWB)? Taking a multidisciplinary approach, we meta-analytically reviewed the field, found it thinly covered, and focused on individualism. In counter, we collected a broad array of individual-level data, specifically an Internet sample of 8,438 adult respondents. Individual SWB was most strongly associated with cultural values that foster relationships and social capital, which typically accounted for more unique variance in life satisfaction than an individual's salary. At a national level, we used mean-based meta-analysis to construct a comprehensive cultural and SWB database. Results show some reversals from the individual level, particularly masculinity's facet of achievement orientation. In all, the happy nation has low power distance and low uncertainty avoidance, but is high in femininity and individualism, and these effects are interrelated but still partially independent from political and economic institutions. In short, culture matters for individual and national well-being.
TL;DR: This paper proposes a scheme called cooperative caching based on mobility prediction (CCMP) for VCCNs, and designs a cache replacement based on content popularity to guarantee that only popular contents are cached at a set of mobile nodes that may visit the same hot spot areas repeatedly.
Abstract: Vehicular content centric networks (VCCNs) emerge as a strong candidate to be deployed in information-rich applications of vehicular communications. Due to vehicles’ mobility, it becomes rather inefficient to establish end-to-end connections in VCCNs. Consequently, content packets are usually sent back to the requesting node via different paths in VCCNs. To improve network performance of VCCNs, node mobility should be exploited for vehicles to serve as relays and to carry data for delivery. In this paper, we propose a scheme called cooperative caching based on mobility prediction (CCMP) for VCCNs. The main idea of CCMP is to cache popular contents at a set of mobile nodes that may visit the same hot spot areas repeatedly. In our CCMP scheme, we use prediction based on partial matching to predict mobile nodes’ probability of reaching different hot spot regions based on their past trajectories. Vehicles with longer sojourn time in a hot region can provide more services and should be preferred as caching nodes. To solve the problem of limited buffer at each node, we design a cache replacement based on content popularity to guarantee that only popular contents are cached. We evaluate CCMP through the opportunistic network environment simulator for its salient features in success ratio and content access delay compared to other state-of-the-art schemes.
TL;DR: The findings suggest that Openness to Experience is associated with increased functional connectivity between default and cognitive control systems, a connectivity profile that may account for the enhanced imaginative and creative abilities of people high in Opennessto Experience.
Abstract: Imagination and creative cognition are often associated with the brain's default network (DN). Recent evidence has also linked cognitive control systems to performance on tasks involving imagination and creativity, with a growing number of studies reporting functional interactions between cognitive control and DN regions. We sought to extend the emerging literature on brain dynamics supporting imagination by examining individual differences in large-scale network connectivity in relation to Openness to Experience, a personality trait typified by imagination and creativity. To this end, we obtained personality and resting-state fMRI data from two large samples of participants recruited from the United States and China, and we examined contributions of Openness to temporal shifts in default and cognitive control network interactions using multivariate structural equation modeling and dynamic functional network connectivity analysis. In Study 1, we found that Openness was related to the proportion of scan time (i.e., “dwell time”) that participants spent in a brain state characterized by positive correlations among the default, executive, salience, and dorsal attention networks. Study 2 replicated and extended the effect of Openness on dwell time in a correlated brain state comparable to the state found in Study 1, and further demonstrated the robustness of this effect in latent variable models including fluid intelligence and other major personality factors. The findings suggest that Openness to Experience is associated with increased functional connectivity between default and cognitive control systems, a connectivity profile that may account for the enhanced imaginative and creative abilities of people high in Openness to Experience.
TL;DR: The authors analyzes the dynamic absorption of remittances at the macroeconomic level, contrasting two possible effects on economic activity, depending on whether these accrue to hand-to-mouth wage earners or credit-constrained entrepreneurs.
University of La Rioja1, University College London2, University of Geneva3, University of Hawaii at Manoa4, University of British Columbia5, University of Wollongong6, University of Otago7, University of North Carolina at Greensboro8, Autonomous University of Barcelona9, Louisiana State University10, University of Pennsylvania11, Lenox Hill Hospital12, Georgia State University13, Ohio University14, University of La Laguna15, University of Crete16, Southern Methodist University17, University of Oslo18, University of Bergen19, University of Liège20, Macquarie University21, University of Western Australia22
TL;DR: The results are consistent with the conceptual notion that schizotypal personality is a multifaceted construct and support the validity and utility of SPQ in cross-cultural research.
Abstract: Background: Schizotypal traits are considered a phenotypic-indicator of schizotypy, a latent personality organization reflecting a putative liability for psychosis. To date, no previous study has examined the comparability of factorial structures across samples originating from different countries and cultures. The main goal was to evaluate the factorial structure and reliability of the Schizotypal Personality Questionnaire (SPQ) scores by amalgamating data from studies conducted in 12 countries and across 21 sites. Method: The overall sample consisted of 27 001 participants (37.5% males, n = 4251 drawn from the general population). The mean age was 22.12 years (s.d. = 6.28, range 16–55 years). The SPQ was used. Confirmatory factor analysis (CFA) and Multilevel CFA (ML-CFA) were used to evaluate the factor structure underlying the SPQ scores. Results: At the SPQ item level, the nine factor and second-order factor models showed adequate goodness-of-fit. At the SPQ subscale level, three- and four-factor models displayed better goodness-of-fit indices than other CFA models. ML-CFA showed that the intraclass correlation coefficients values were lower than 0.106. The three-factor model showed adequate goodness of fit indices in multilevel analysis. The ordinal a coefficients were high, ranging from 0.73 to 0.94 across individual samples, and from 0.84 to 0.91 for the combined sample. Conclusions: The results are consistent with the conceptual notion that schizotypal personality is a multifaceted construct and support the validity and utility of SPQ in cross-cultural research. We discuss theoretical and clinical implications of our results for diagnostic systems, psychosis models and cross-national mental health strategies.
TL;DR: In this article, the authors explore the internationalization of family firms based on a sample of S&P 1500 manufacturing firms from 2002 to 2008 and explore the role of goals, governance, and resources as important drivers of differences in internationalization between family and non-family firms, as well as of variations in internationalisation among family firms.
Abstract: Research Summary: We argue that willingness (attitude toward risk, return, and socioemotional wealth), ability (extent of control), and resource availability influence the internationalization of family firms. We hypothesize that the internationalization of family firms led by founding and later generation family members differs from the internationalization of nonfamily firms and from each other and that knowledge-based resources moderate the relationship. Longitudinal analysis of 4,925 firm-year observations of S&P 1500 manufacturing firms from 2002 to 2008 shows that compared to nonfamily firms, family firms run by founding (later generation) family members internationalize less (more). Knowledge resources increase (decrease) the internationalization of founder-led (later generation) family firms. Overall, how family ownership influences firm behavior is likely to vary as much by its type as its amount.Managerial Summary: We explore the internationalization of family firms based on a sample of S&P 1500 manufacturing firms from 2002 to 2008. Compared to nonfamily firms, family firms run by founding family members internationalize less, and family firms run by later generation members internationalize more. However, as knowledge resources increase, the internationalization of founder-led family firms increases, whereas the internationalization of firms led by later generation family members decreases. Therefore, our findings suggest that knowledge resources can facilitate or hamper international expansion in family firms, depending on the generation of family control. These findings underscore the role of goals, governance, and resources as important drivers of differences in internationalization between family and nonfamily firms, as well as of variations in internationalization among family firms.
TL;DR: Significantly higher rates of overall comorbidity were found among college students with well-defined ADHD, relative to the corresponding rates of non-ADHD diagnoses among Comparison students, which were 11.2% and 4.0%, respectively.
Abstract: The purpose of this study was to examine rates and patterns of non-attention-deficit/hyperactivity disorder (non-ADHD) psychiatric diagnoses among a large group of 1st-year college students with and without ADHD. A total of 443 participants, including 214 men and 229 women ranging in age from 18 to 22 years of age (M = 18.2), were recruited from 9 colleges involved in a large-scale, multisite longitudinal investigation. Non-Hispanic Caucasian students represented 67.5% of the total sample. A comprehensive multimethod assessment approach was used in conjunction with expert panel review to determine both ADHD and comorbidity status. Significantly higher rates of overall comorbidity were found among college students with well-defined ADHD, with 55.0% exhibiting at least one comorbid diagnosis and 31.8% displaying two or more, relative to the corresponding rates of non-ADHD diagnoses among Comparison students, which were 11.2% and 4.0%, respectively. These differences in overall comorbidity rates were, in large part, attributable to the increased presence of depressive and anxiety disorders, especially major depressive disorder (active or in partial remission) and generalized anxiety disorder, among the students with ADHD. Within the ADHD group, differential comorbidity rates were observed as a function of ADHD presentation type and gender but not ethnic/racial diversity status. The current findings fill a gap in the literature and shed new light on the rates and patterns of comorbidity among emerging adults with ADHD in their 1st year of college. Implications for providing clinical and support services to college students with ADHD are discussed.
TL;DR: The purpose of this document is to present a paradigm for prehospital healthcare systems to minimize the risk of morbidity and mortality for EHS patients.
TL;DR: A new model of genome architecture evolution in prokaryotes is pointed to, in which pan-genome sizes, not individual genome sizes, are governed by drift-barrier evolution.
Abstract: Knowledge of population-level processes is essential to understanding the efficacy of selection operating within a species. However, attempts at estimating effective population sizes (Ne) are particularly challenging in bacteria due to their extremely large census populations sizes, varying rates of recombination and arbitrary species boundaries. In this study, we estimated Ne for 153 species (152 bacteria and one archaeon) defined under a common framework and found that ecological lifestyle and growth rate were major predictors of Ne; and that contrary to theoretical expectations, Ne was unaffected by recombination rate. Additionally, we found that Ne shapes the evolution and diversity of total gene repertoires of prokaryotic species. Together, these results point to a new model of genome architecture evolution in prokaryotes, in which pan-genome sizes, not individual genome sizes, are governed by drift-barrier evolution.
TL;DR: It is suggested that S. marcescens is a widespread opportunistic pathogen of adult honey bees and that it may be highly virulent under some conditions such as perturbation of the normal gut microbiota or the presence of Varroa mites that puncture the integument, thereby enabling entry of bacterial cells.
Abstract: Although few honey bee diseases are known to be caused by bacteria, pathogens of adult worker bees may be underrecognized due to social immunity mechanisms. Specifically, infected adult bees typically abandon the hive or are removed by guards. Serratia marcescens, an opportunistic pathogen of many plants and animals, is often present at low abundance in the guts of honey bee workers and has recently been isolated from Varroa mites and from the hemolymph of dead and dying honey bees. However, the severity and prevalence of S. marcescens pathogenicity in honey bees have not been fully investigated. Here we characterized three S. marcescens strains isolated from the guts of honey bees and one previously isolated from hemolymph. In vivo tests confirmed that S. marcescens is pathogenic in workers. All strains caused mortality when a few cells were injected into the hemocoel, and the gut-isolated strains caused mortality when administered orally. In vitro assays and comparative genomics identified possible mechanisms of virulence of gut-associated strains. Expression of antimicrobial peptide and phenoloxidase genes was not elevated following infection, suggesting that these S. marcescens strains derived from honey bees can evade the immune response in their hosts. Finally, surveys from four locations in the United States indicated the presence of S. marcescens in the guts of over 60% of the worker bees evaluated. Taken together, these results suggest that S. marcescens is a widespread opportunistic pathogen of adult honey bees and that it may be highly virulent under some conditions such as perturbation of the normal gut microbiota or the presence of Varroa mites that puncture the integument, thereby enabling entry of bacterial cells.IMPORTANCE Recently, it has become apparent that multiple factors are responsible for honey bee decline, including climate change, pests and pathogens, pesticides, and loss of foraging habitat. Of the large number of pathogens known to infect honey bees, very few are bacteria. Because adult workers abandon hives when diseased, many of their pathogens may go unnoticed. Here we characterized the virulence of Serratia marcescens strains isolated from honey bee guts and hemolymph. Our results indicate that S. marcescens, an opportunistic pathogen of many plants and animals, including humans, is a virulent opportunistic pathogen of honey bees, which could contribute to bee decline. Aside from the implications for honey bee health, the discovery of pathogenic S. marcescens strains in honey bees presents an opportunity to better understand how opportunistic pathogens infect and invade hosts.
TL;DR: In this article, the specific ways in which teachers experience and navigate stressors associated with their work are discussed. But, less is known about how teachers cope with stressors in their work.
Abstract: Teaching has been characterised as a stressful profession that is prone to burnout. Less is known about the specific ways in which teachers experience and navigate stressors associated with their w...
TL;DR: Investigation of a pro-ED community on Reddit, an anonymous social networking platform with topical forums, found that the content aligned with expressions of clinically relevant ED psychopathology, with eating concerns and shape concerns being most prevalent.
TL;DR: This meta-analysis is the first to establish a unique association of the community ladder with health and supports social comparison theories highlighting the importance of comparisons with proximal others and may promote greater use of thecommunity ladder in future research.
Abstract: Objective To derive a robust estimate of the relation between health and subjective status in society versus subjective status in one's community, and to identify moderators of these effects, using meta-analysis. Method Thirty-eight independent studies, which included both subjective status ladders and collectively provided data from 142,836 participants, met criteria for inclusion. Information on sample characteristics (e.g., age, gender, continent), methodological factors (e.g., scale type, methodological quality), and statistical factors (e.g., model type, inclusion of objective socioeconomic status covariates) were extracted from each study. Random-effects meta-analysis was used to aggregate data across studies. Results Both the community ladder and the society ladder yielded small but statistically significant associations with health behavior (r = .06 and r = .06), mental health (r = .13 and r = .11), physical health (r = .05 and r = .04), and self-rated health (r = .08 and r = .09) that were comparable in size and were qualified in a similar way by the type of health outcome, sample age, continent, and methodological quality. Additionally, community and society ladders remained significantly associated with health both when considered simultaneously and following the inclusion of objective socioeconomic status covariates. Conclusions This meta-analysis is the first to establish a unique association of the community ladder with health. It also supports social comparison theories highlighting the importance of comparisons with proximal others and may promote greater use of the community ladder in future research. (PsycINFO Database Record
TL;DR: In this paper, the authors quantify the construct of inhibitory control (inhibition-disinhibition) as the individual difference dimension tapped by self-report, task-behavioral, and brain response indicators of susceptibility to disinhibitory problems.
Abstract: Recent mental health initiatives have called for a shift away from purely report-based conceptualizations of psychopathology toward a biobehaviorally oriented framework. The current work illustrates a measurement-oriented approach to challenges inherent in efforts to integrate biological and behavioral indicators with psychological-report variables. Specifically, we undertook to quantify the construct of inhibitory control (inhibition-disinhibition) as the individual difference dimension tapped by self-report, task-behavioral, and brain response indicators of susceptibility to disinhibitory problems (externalizing proneness). In line with prediction, measures of each type cohered to form domain-specific factors, and these factors loaded in turn onto a cross-domain inhibitory control factor reflecting the variance in common among the domain factors. Cross-domain scores predicted behavioral-performance and brain-response criterion measures as well as clinical problems (i.e., antisocial behaviors and substance abuse). Implications of this new cross-domain model for research on neurobiological mechanisms of inhibitory control and health/performance outcomes associated with this dispositional characteristic are discussed.
TL;DR: In this paper, the authors define public-sector entrepreneurship as having three distinct components: actions that are innovative, that transform a status quo social and economic environment, and that are characterized by uncertainty.
Abstract: We define public-sector entrepreneurship as having three distinct components: actions that are innovative, that transform a status quo social and economic environment, and that are characterized by uncertainty. While the literature on public-sector entrepreneurship dates to the mid-1960s, the scholarly foundations on which public-sector entrepreneurship is based date to the writings of Cantillon and Baudeau in the midand late-1700s and to Schumpeter in the late-1930s and early-1940s. After summarizing the academic and policy literatures on public-sector entrepreneurship, we illustrate the concept using examples of public-sector initiatives. We conclude the paper with an emphasis on the dynamic nature of public-sector entrepreneurship, and we offer insight into additional areas to which the concept applies as well as policy suggestions for incentivizing further public-sector entrepreneurial actions.
TL;DR: In this article, a theoretical model of the direct negative effects of family ownership on the adoption of sustainability practices was developed to examine the socio-emotional wealth perspective of family firms.
Abstract: Sustainability practices are critical for family firms, as they relate directly to the continuity of the business and relationships with important stakeholders, such as members of the local community. Nevertheless, not all family firms wish to adopt sustainability practices. To examine this, we draw upon the socioemotional wealth perspective in order to develop a theoretical model of the direct negative effects of family ownership on the adoption of sustainability practices. We also suggest moderating effects of long-term orientation (LTO) on this link. Our model is tested on a sample of 195 family firms in the tourism and hospitality sector. The results support our hypothesis that family ownership negatively influences the adoption of sustainability practices. Additionally, LTO moderates the relationship between family ownership and the adoption of sustainability practices, such that family owners with a high LTO are more likely to adopt this particular practice compared to those with a low LTO.