257 research outputs found
Human flourishing from eudaimonic balance of values in entrepreneurs
Much of the focus in the entrepreneurial literature is on the primacy of financial values but in this paper, we argue that this is misplaced. Instead, we propose that entrepreneurs pursue an eudaimonic balance of values to achieve human flourishing. Using insights from the institutional logics perspective, we present findings from an empirical, qualitative, cross-cultural, multi-case study in Taiwan and Vietnam. We show how entrepreneurs strive for a range of goals from different facets of life, demonstrating the importance of non-financial goals for eudaimonia, or human flourishing. We contribute insights from outside the commonly studied North American and European contexts, showing the importance of culture and tradition in shaping the influences operating upon individuals and the value-laden objectives they pursue. Consequently, we illustrate the need for a more complex and complete framing of entrepreneurial values that contradicts much of the literature employing rational-actor theory, economic models, and quantitative analysis
Different Thymosin Beta 4 Immunoreactivity in Foetal and Adult Gastrointestinal Tract
Background: Thymosin beta 4 (T beta(4)) is a member of beta-thymosins, a family of peptides that play essential roles in many cellular functions. A recent study from our group suggested a role for T beta(4) in the development of human salivary glands. The aim of this study was to analyze the expression of T beta(4) in the human gut during development, and in the adult.
Methodology/Principal Findings: Immunolocalization of T beta(4) was studied in autoptic samples of tongue, oesophagus, stomach, ileum, colon, liver and pancreas obtained from two human foetuses and two adults. T beta(4) appeared unevenly distributed, with marked differences between foetuses and adults. In the stomach, superficial epithelium was positive in foetuses and negative in adults. Ileal enterocytes were strongly positive in the adult and weakly positive in the foetuses. An increase in reactivity for T beta(4) was observed in superficial colon epithelium of adults as compared with the foetuses. Striking differences were found between foetal and adult liver: the former showed a very low reactivity for T beta(4) while in the adult we observed a strong reactivity in the vast majority of the hepatocytes. A peculiar pattern was found in the pancreas, with the strongest reactivity observed in foetal and adult islet cells.
Significance: Our data show a strong expression of T beta(4) in the human gut and in endocrine pancreas during development. The observed differential expression of T beta(4) suggests specific roles of the peptide in the gut of foetuses and adults. The observed heterogeneity of T beta(4) expression in the foetal life, ranging from a very rare detection in liver cells up to a diffuse reactivity in endocrine pancreas, should be taken into account when the role of T beta(4) in the development of human embryo is assessed. Future studies are needed to shed light on the link between T beta(4) and organogenesis
Low-dimensional perovskite nanoplatelet synthesis using in situ photophysical monitoring to establish controlled growth.
Perovskite nanoparticles have attracted the attention of research groups around the world for their impressive photophysical properties, facile synthesis and versatile surface chemistry. Here, we report a synthetic route that takes advantage of a suite of soluble precursors to generate CsPbBr3 perovskite nanoplatelets with fine control over size, thickness and optical properties. We demonstrate near unit cell precision, creating well characterized materials with sharp, narrow emission lines at 430, 460 and 490 nm corresponding to nanoplatelets that are 2, 4, and 6 unit cells thick, respectively. Nanoplatelets were characterized with optical spectroscopy, atomic force microscopy, scanning electron microscopy and transmission electron microscopy to explicitly correlate growth conditions, thickness and resulting photophysical properties. Detailed in situ photoluminescence spectroscopic studies were carried out to understand and optimize particle growth by correlating light emission with nanoplatelet growth across a range of synthetic conditions. It was found that nanoplatelet thickness and emission wavelength increase as the ratio of oleic acid to oleyl amine or the reaction temperature is increased. Using this information, we control the lateral size, width and corresponding emission wavelength of the desired nanoplatelets by modulating the temperature and ratios of the ligand
Multipolymer microsphere delivery of SARS-CoV-2 antigens
Effective antigen delivery facilitates antiviral vaccine success defined by effective immune protective responses against viral exposures. To improve severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) antigen delivery, a controlled biodegradable, stable, biocompatible, and nontoxic polymeric microsphere system was developed for chemically inactivated viral proteins. SARS-CoV-2 proteins encapsulated in polymeric microspheres induced robust antiviral immunity. The viral antigen-loaded microsphere system can preclude the need for repeat administrations, highlighting its potential as an effective vaccine.
Statement of significance
Successful SARS-CoV-2 vaccines were developed and quickly approved by the US Food and Drug Administration (FDA). However, each of the vaccines requires boosting as new variants arise. We posit that injectable biodegradable polymers represent a means for the sustained release of emerging viral antigens. The approach offers a means to reduce immunization frequency by predicting viral genomic variability. This strategy could lead to longer-lasting antiviral protective immunity. The current proof-of-concept multipolymer study for SARS-CoV-2 achieve these metrics.
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Multipolymer microsphere delivery of SARS-CoV-2 antigens
Effective antigen delivery facilitates antiviral vaccine success defined by effective immune protective re- sponses against viral exposures. To improve severe acute respiratory syndrome coronavirus-2 (SARS-CoV- 2) antigen delivery, a controlled biodegradable, stable, biocompatible, and nontoxic polymeric micro- sphere system was developed for chemically inactivated viral proteins. SARS-CoV-2 proteins encapsulated in polymeric microspheres induced robust antiviral immunity. The viral antigen-loaded microsphere sys- tem can preclude the need for repeat administrations, highlighting its potential as an effective vaccine
Associations between unit workloads and outcomes of first extubation attempts in extremely premature infants below a gestational age of 26 weeks
Objective: The objective was to explore whether high workloads in neonatal intensive care units were associated with short-term respiratory outcomes of extremely premature (EP) infants born <26 weeks of gestational age.
Methods: This was a population-based study using data from the Norwegian Neonatal Network supplemented by data extracted from the medical records of EP infants <26 weeks GA born from 2013 to 2018. To describe the unit workloads, measurements of daily patient volume and unit acuity at each NICU were used. The effect of weekend and summer holiday was also explored.
Results: We analyzed 316 first planned extubation attempts. There were no associations between unit workloads and the duration of mechanical ventilation until each infant’s first extubation or the outcomes of these attempts. Additionally, there were no weekend or summer holiday effects on the outcomes explored. Workloads did not affect the causes of reintubation for infants who failed their first extubation attempt.
Conclusion: Our finding that there was no association between the organizational factors explored and short-term respiratory outcomes can be interpreted as indicating resilience in Norwegian neonatal intensive care units.publishedVersio
Integrated Short-term Palliative Rehabilitation to improve quality of life and equitable care access in incurable cancer (INSPIRE):A multi-national European research project
Trans-ancestry genome-wide association study identifies 12 genetic loci influencing blood pressure and implicates a role for DNA methylation
10.1038/ng.3405Nature Genetics47111282-1293GUSTO (Growing up towards Healthy Outcomes
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