235 research outputs found

    Health Perception and Behavior Changes in Survivors of the Acute Respiratory Distress Syndrome

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    The Acute Respiratory Distress Syndrome (ARDS) is a severe illness with a 40% mortality rate. Improvements in care have reduced deaths but led to an increasing number of survivors who experience chronic adverse effects. However, there are no published studies that have evaluated changes in health perceptions and behavior in ARDS survivors. We sought to determine changes in health-related perceptions and behaviors in ARDS survivors. A sequential mixed methods study was conducted to examine changes in health perceptions and behaviors in ARDS survivors. Respondents were registrants at the ARDS Foundation, a non-profit patient support and education organization. Findings from interviews conducted with ARDS survivors during the initial qualitative phase were used to construct a quantitative survey instrument, which was completed by 229/513 (45%) registrants. Changes were reported in the following behaviors before and after ARDS: diet (34% and 31% consumed more fruits and vegetables, respectively, now than before ARDS, while 4% and 6%, respectively, said they consume less), physical activity (64% exercise now vs. 50% before, p\u3c0.01), alcohol use (2.3+7.6 drinks/week now vs.4.2+10.6 before, p\u3c0.001), and medical care needs (10.6+15.5 doctor visits now vs. 3.7+6.8 before, p\u3c0.001). ARDS survivors reported mostly positive health perception and behavior changes after their illness.https://scholarworks.waldenu.edu/archivedposters/1012/thumbnail.jp

    Nurturing International Business research through Global Value Chains literature: A review and discussion of future research opportunities

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    This article offers a comprehensive and systematic review of the literature on Global Value Chains (GVCs). The GVC framework has received growing attention in the last decade, providing theoretical concepts and analytical tools to understand and assess patterns of value creation in view of the new international division of labour. In this area, a broad overlap of research interest exists with the international business (IB) literature. Yet, few interactions between the two fields of study have been recorded so far. Performing a quantitative content analysis on all academic publications on GVCs in the period 1994−2018, this paper describes the evolution of GVC studies, emphasizing points of contact and potential synergies with the IB literature. It also identifies research opportunities along the four key dimensions of the GVC framework: geographical and industrial scope, governance, upgrading, and institutional context

    The impact of country culture on the adoption of new forms of work organization

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    Purpose – This paper aims at understanding the relationship between the adoption of new forms of work organizations (NFWOs) and measures of country impact, in terms of national culture and economic development. Design/methodology/approach – The adoption of NFWO practices is measured through data from the fourth edition of the International Manufacturing Strategy Survey, while Hofstede’s measures are adopted for national culture, and gross national income (GNI) per capita is used as an economic development variable. Multivariate linear regression is applied to investigate relationships, using company size as a control variable. A cluster analysis is utilized to identify groups of countries with similar cultural characteristics and to highlight different patterns of adoption of NFWO practices. Findings – The authors show that it is possible to explain different patterns in the adoption of NFWO practices when considering company size and cultural variables. GNI is instead only significant for some practices and does not always positively influence the adoption of NFWO. On the other hand, cultural variables are linked to all the practices, but there is no dominant dimension to explain higher or lower NFWO adoption. Research limitations/implications – Results are limited because only Hofstede’s cultural variables are used and manufacturing performance is not considered. Therefore, it is not possible to discriminate between more or less successful NFWO variations. Practical implications – This paper provides managers with insights on how to take into account cultural variables when transferring organizational models to different countries. Originality/value – This paper contributes to previous studies showing the importance of including several contextual variables, country impact in particular, in the study of operations management

    Social distancing in chronic migraine during the covid-19 outbreak: Results from a multicenter observational study

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    Background: The restrictions taken to control the rapid spread of COVID-19 resulted in a sudden, unprecedented change in people’s lifestyle, leading to negative consequences on general health. This study aimed to estimate the impact of such changes on migraine severity during 2020 March–May lockdown. Methods: Patients affected by migraine with or without aura, diagnosed by expert physicians, completed a detailed interview comprehensive of: assessment of migraine characteristics; measure of physical activity (PA) levels; measure of the intake frequency of main Italian foods; the Insomnia Severity Index (ISI) questionnaire investigating sleep disorders. Results: We included 261 patients with a mean age of 44.5 ± 12.3 years. During social distancing, 72 patients (28%) reported a headache worsening, 86 (33%) an improvement, and 103 (39%) a stable headache frequency. A significant decrease of the PA levels during COVID-19 quarantine in the whole study sample was observed (median total metabolic equivalent task (METs) decreased from 1170 to 510; p < 0.001). Additionally, a significant difference was reported on median ISI scores (from 7 to 8; p < 0.001), which were increased in patients who presented a stable or worsening headache. Conclusions: Our study confirmed that the restrictions taken during the pandemic have affected the practice of PA levels and sleep quality in migraine. Hence, PA and sleep quality should be assessed to find strategies for an improvement in quality of life

    The legacy of Corrado Gini in population studies

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    This volume contains 12 papers that range over many different research subjects, taking in many of the population questions that, directly or indirectly, absorbed Corrado Gini as demographer and social scientist over several decades. They vary from the analysis of the living conditions and behaviours of the growing foreign population (measurements and methods of analysis, socio-economic conditions and health, ethnic residential segregation, sex-ratio at birth), to studies on the homogamy of couples; from population theories (with reference to the cyclical theory of populations) to the modelling approach to estimating mortality in adult ages or estimating time transfers, by age and sex, related to informal child care and adult care; from historical studies that take up themes dear to Gini (such as the estimates of Italian military deaths in WWI), to the application of Gini’s classical measurements to studying significant phenomena today (transition to adulthood and leaving the parental home, health care, disabled persons and social integration). The subjects and measurements that appear here are not intended to exhaust the broad spectrum of Gini’s research work in the demographic and social field (nor could they), but they can make up a part of the intersection between his vast legacy and some interesting topics in current research, some of which were not even imaginable in the mid twentieth century. Looking at the many contributions that celebrated Gini in Treviso and thinking about his legacy, it seems possible to identify at least two typologies of approach, to be found in this issue of the journal, too. On the one hand, there are contributions that aim to retrieve and discuss themes, methodologies and measurements dealt with or used by Gini so as to evaluate their present relevance and importance in the current scholarly debate. On the other, there are contributions that deal with topics that are far from Gini’s work, as they study very recent phenomena, but actually, among other things, make use of methods and indicators devised by Gini that are now so much part of the common currency of methodology, so they don’t require explicit reference to their Author

    A large scale hearing loss screen reveals an extensive unexplored genetic landscape for auditory dysfunction

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    The developmental and physiological complexity of the auditory system is likely reflected in the underlying set of genes involved in auditory function. In humans, over 150 non-syndromic loci have been identified, and there are more than 400 human genetic syndromes with a hearing loss component. Over 100 non-syndromic hearing loss genes have been identified in mouse and human, but we remain ignorant of the full extent of the genetic landscape involved in auditory dysfunction. As part of the International Mouse Phenotyping Consortium, we undertook a hearing loss screen in a cohort of 3006 mouse knockout strains. In total, we identify 67 candidate hearing loss genes. We detect known hearing loss genes, but the vast majority, 52, of the candidate genes were novel. Our analysis reveals a large and unexplored genetic landscape involved with auditory function

    Engineered Picornavirus VPg-RNA Substrates: Analysis of a Tyrosyl-RNA Phosphodiesterase Activity

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    Using poliovirus, the prototypic member of Picornaviridae, we have further characterized a host cell enzymatic activity found in uninfected cells, termed “unlinkase,” that recognizes and cleaves the unique 5â€Č tyrosyl-RNA phosphodiester bond found at the 5â€Č end of picornavirus virion RNAs. This bond connects VPg, a viral-encoded protein primer essential for RNA replication, to the viral RNA; it is cleaved from virion RNA prior to its engaging in protein synthesis as mRNA. Due to VPg retention on nascent RNA strands and replication templates, but not on viral mRNA, we hypothesize that picornaviruses utilize unlinkase activity as a means of controlling the ratio of viral RNAs that are translated versus those that either serve as RNA replication templates or are encapsidated. To test our hypothesis and further characterize this enzyme, we have developed a novel assay to detect unlinkase activity. We demonstrate that unlinkase activity can be detected using this assay, that this unique activity remains unchanged over the course of a poliovirus infection in HeLa cells, and that unlinkase activity is unaffected by the presence of exogenous VPg or anti-VPg antibodies. Furthermore, we have determined that unlinkase recognizes and cleaves a human rhinovirus-poliovirus chimeric substrate with the same efficiency as the poliovirus substrate

    MicroRNA degradation by a conserved target RNA regulates animal behavior

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    International audiencemicroRNAs (miRNAs) repress target transcripts through partial complementarity. By contrast, highly complementary miRNA-binding sites within viral and artificially engineered transcripts induce miRNA degradation in vitro and in cell lines. Here, we show that a genome-encoded transcript harboring a near-perfect and deeply conserved miRNA-binding site for miR-29 controls zebrafish and mouse behavior. This transcript originated in basal vertebrates as a long noncoding RNA (lncRNA) and evolved to the protein-coding gene NREP in mammals, where the miR-29-binding site is located within the 3â€Č UTR. We show that the near-perfect miRNA site selectively triggers miR-29b destabilization through 3â€Č trimming and restricts its spatial expression in the cerebellum. Genetic disruption of the miR-29 site within mouse Nrep results in ectopic expression of cerebellar miR-29b and impaired coordination and motor learning. Thus, we demonstrate an endogenous target-RNA-directed miRNA degradation event and its requirement for animal behavio
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