27 research outputs found

    Who Has a Better Idea? Innovation, Shared Capitalism, and HR Policies

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    We investigate the relationship of "shared capitalist" compensation systems - profit/gainsharing, employee ownership, and stock options - to the culture for innovation and employees' ability and willingness to engage in innovative activity. Using a large dataset with over 25,000 employee surveys in over 200 worksites of a large multinational organization, we find that both shared capitalism compensation and high performance work policies contribute to these innovation outcomes. Owning company stock is the most consistently positive compensation variable in predicting both an innovation culture and willingness to engage in innovative activity. We also find that shared capitalism and high performance work policies have stronger effects in predicting an innovation culture when they are combined, and that the effects of shared capitalism and high performance work policies are partially, but not wholly, mediated through greater employee alignment with company strategy. The findings are consistent with agency theories predicting that the principal agent problem can be addressed by a combination of shared incentives and cooperative culture which encourages mutual monitoring and opportunities to share information.

    Ready or not? Expectations of faculty and medical students for clinical skills preparation for clerkships

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    Background: Preclerkship clinical-skills training has received increasing attention as a foundational preparation for clerkships. Expectations among medical students and faculty regarding the clinical skills and level of skill mastery needed for starting clerkships are unknown. Medical students, faculty teaching in the preclinical setting, and clinical clerkship faculty may have differing expectations of students entering clerkships. If students' expectations differ from faculty expectations, students may experience anxiety. Alternately, congruent expectations among students and faculty may facilitate integrated and seamless student transitions to clerkships. Aims: To assess the congruence of expectations among preclerkship faculty, clerkship faculty, and medical students for the clinical skills and appropriate level of clinical-skills preparation needed to begin clerkships. Methods: Investigators surveyed preclinical faculty, clerkship faculty, and medical students early in their basic clerkships at a North American medical school that focuses on preclerkship clinical-skills development. Survey questions assessed expectations for the appropriate level of preparation in basic and advanced clinical skills for students entering clerkships. Results: Preclinical faculty and students had higher expectations than clerkship faculty for degree of preparation in most basic skills. Students had higher expectations than both faculty groups for advanced skills preparation. Conclusions: Preclinical faculty, clerkship faculty, and medical students appear to have different expectations of clinical-skills training needed for clerkships. As American medical schools increasingly introduce clinical-skills training prior to clerkships, more attention to alignment, communication, and integration between preclinical and clerkship faculty will be important to establish common curricular agendas and increase integration of student learning. Clarification of skills expectations may also alleviate student anxiety about clerkships and enhance their learning

    An open-source database for the synthesis of soil radiocarbon data: International Soil Radiocarbon Database (ISRaD) version 1.0

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    Radiocarbon is a critical constraint on our estimates of the timescales of soil carbon cycling that can aid in identifying mechanisms of carbon stabilization and destabilization and improve the forecast of soil carbon response to management or environmental change. Despite the wealth of soil radiocarbon data that have been reported over the past 75 years, the ability to apply these data to global-scale questions is limited by our capacity to synthesize and compare measurements generated using a variety of methods. Here, we present the International Soil Radiocarbon Database (ISRaD; http://soilradiocarbon.org, last access: 16 December 2019), an open-source archive of soil data that include reported measurements from bulk soils, distinct soil carbon pools isolated in the laboratory by a variety of soil fractionation methods, samples of soil gas or water collected interstitially from within an intact soil profile, CO2 gas isolated from laboratory soil incubations, and fluxes collected in situ from a soil profile. The core of ISRaD is a relational database structured around individual datasets (entries) and organized hierarchically to report soil radiocarbon data, measured at different physical and temporal scales as well as other soil or environmental properties that may also be measured and may assist with interpretation and context. Anyone may contribute their own data to the database by entering it into the ISRaD template and subjecting it to quality assurance protocols. ISRaD can be accessed through (1) a web-based interface, (2) an R package (ISRaD), or (3) direct access to code and data through the GitHub repository, which hosts both code and data. The design of ISRaD allows for participants to become directly involved in the management, design, and application of ISRaD data. The synthesized dataset is available in two forms: the original data as reported by the authors of the datasets and an enhanced dataset that includes ancillary geospatial data calculated within the ISRaD framework. ISRaD also provides data management tools in the ISRaD-R package that provide a starting point for data analysis; as an open-source project, the broader soil community is invited and encouraged to add data, tools, and ideas for improvement. As a whole, ISRaD provides resources to aid our evaluation of soil dynamics across a range of spatial and temporal scales. The ISRaD v1.0 dataset is archived and freely available at https://doi.org/10.5281/zenodo.2613911 (Lawrence et al., 2019).Max Planck Institute for Biogeochemistry; European Research CouncilEuropean Research Council (ERC) [695101]; USGS Land Change Science mission area; US Department of AgricultureUnited States Department of Agriculture (USDA) [2018-67003-27935]; US Geological Survey Powell Center for the working group on Soil Carbon Storage and FeedbacksOpen access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

    Effect of angiotensin-converting enzyme inhibitor and angiotensin receptor blocker initiation on organ support-free days in patients hospitalized with COVID-19

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    IMPORTANCE Overactivation of the renin-angiotensin system (RAS) may contribute to poor clinical outcomes in patients with COVID-19. Objective To determine whether angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) initiation improves outcomes in patients hospitalized for COVID-19. DESIGN, SETTING, AND PARTICIPANTS In an ongoing, adaptive platform randomized clinical trial, 721 critically ill and 58 non–critically ill hospitalized adults were randomized to receive an RAS inhibitor or control between March 16, 2021, and February 25, 2022, at 69 sites in 7 countries (final follow-up on June 1, 2022). INTERVENTIONS Patients were randomized to receive open-label initiation of an ACE inhibitor (n = 257), ARB (n = 248), ARB in combination with DMX-200 (a chemokine receptor-2 inhibitor; n = 10), or no RAS inhibitor (control; n = 264) for up to 10 days. MAIN OUTCOMES AND MEASURES The primary outcome was organ support–free days, a composite of hospital survival and days alive without cardiovascular or respiratory organ support through 21 days. The primary analysis was a bayesian cumulative logistic model. Odds ratios (ORs) greater than 1 represent improved outcomes. RESULTS On February 25, 2022, enrollment was discontinued due to safety concerns. Among 679 critically ill patients with available primary outcome data, the median age was 56 years and 239 participants (35.2%) were women. Median (IQR) organ support–free days among critically ill patients was 10 (–1 to 16) in the ACE inhibitor group (n = 231), 8 (–1 to 17) in the ARB group (n = 217), and 12 (0 to 17) in the control group (n = 231) (median adjusted odds ratios of 0.77 [95% bayesian credible interval, 0.58-1.06] for improvement for ACE inhibitor and 0.76 [95% credible interval, 0.56-1.05] for ARB compared with control). The posterior probabilities that ACE inhibitors and ARBs worsened organ support–free days compared with control were 94.9% and 95.4%, respectively. Hospital survival occurred in 166 of 231 critically ill participants (71.9%) in the ACE inhibitor group, 152 of 217 (70.0%) in the ARB group, and 182 of 231 (78.8%) in the control group (posterior probabilities that ACE inhibitor and ARB worsened hospital survival compared with control were 95.3% and 98.1%, respectively). CONCLUSIONS AND RELEVANCE In this trial, among critically ill adults with COVID-19, initiation of an ACE inhibitor or ARB did not improve, and likely worsened, clinical outcomes. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT0273570

    Team innovation: the role of intangible assets and exploratory search

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    This dissertation examines the impact of team intangible assets on radical and incremental innovation through the process mechanism of exploratory search. A research framework is developed that examines the unique effects of team social capital (intra-relational and inter-informational), human capital (level and heterogeneity), and codified capital on exploratory search activities. Further, the complex dynamics of the interrelationships between intangible assets and exploratory search are delineated. The results indicate that the intangible assets, human capital and codified capital individually have a positive relationship with exploratory search activities. Additionally, by examining the combination of codified capital and human capital, we are better able to understand the factors which stimulate exploratory search. Finally, exploratory search was identified as a process mechanism between intangible assets and innovation outcomes. However, the direction and magnitude of the results were unexpected - exploratory search being positively related to incremental innovation and no relationship to radical innovation. The results were discussed and explanations provided for unexpected and non-significant results.Ph.D.Includes bibliographical references (p. 69-84)by Erika Harde

    Shoreface Morphodynamics, Back Beach Variability, and Implications of Future Sea-Level Rise for California's Sandy Shorelines

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    California's sandy shorelines are important resources in terms of ecological habitat, recreation and tourism, and aesthetic beauty. They also serve as important natural buffers, often protecting back-beach development and infrastructure from wave attack. Encroachment or fixing of the back beach in conjunction with sea-level rise will reduce the accommodation space of beaches and subsequently increase the vulnerability of the back beach to extreme water level events associated with storms. Understanding the present state of California's sandy shorelines in terms of landward migration potential, vulnerability to extreme water events, and local morphodynamic variability is important for coastal policymakers and managers to make informed decisions regarding the future of the California coastline. In this study, the landward migration potential of California's beaches was assessed through a statewide cataloging and classification of all sandy shorelines in the context of back beach immobility and restrictions to landward migration. Beach inundation vulnerability from increased frequency of high water events with rising sea level was determined with extreme water level exceedance distributions from historic tide gauge records and sea-level rise projections of 18 cm, 79 cm, and 140 cm by 2100. Finally, alongshore variability and the influence of high wave events and berm overtopping on beach profile morphodynamics were analyzed through seasonal beach surveying of a coastal lagoon pocket beach. Fifty-eight percent of the total length of sandy shoreline in California is restricted in the back beach from landward migration. This is primarily due (in Central and Southern California) to anthropogenic coastal development and infrastructure. Beach inundation potential from extreme high water events is highly variable and is a function of berm height and backshore morphology. Backshore morphology influences foreshore and berm morphodynamics by modifying swash sediment transport. The growth and persistence of a berm on a bar-built coastal lagoon beach is dependent on berm overtopping; however, overtopping beyond a threshold frequency becomes destructive and can lead to berm erosion. While statewide more than half of California's sandy shorelines are being threatened by reduced accommodation space through terrestrial and marine encroachment, understanding local variability is essential for determining the future of these highly valued resources

    Laquinimod, a prototypic quinoline-3-carboxamide and aryl hydrocarbon receptor agonist, utilizes a CD155-mediated natural killer/dendritic cell interaction to suppress CNS autoimmunity

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    Abstract Background Quinoline-3-carboxamides, such as laquinimod, ameliorate CNS autoimmunity in patients and reduce tumor cell metastasis experimentally. Previous studies have focused on the immunomodulatory effect of laquinimod on myeloid cells. The data contained herein suggest that quinoline-3-carboxamides improve the immunomodulatory and anti-tumor effects of NK cells by upregulating the adhesion molecule DNAX accessory molecule-1 (DNAM-1). Methods We explored how NK cell activation by laquinimod inhibits CNS autoimmunity in experimental autoimmune encephalomyelitis (EAE), the most utilized model of MS, and improves immunosurveillance of experimental lung melanoma metastasis. Functional manipulations included in vivo NK and DC depletion experiments and in vitro assays of NK cell function. Clinical, histological, and flow cytometric read-outs were assessed. Results We demonstrate that laquinimod activates natural killer (NK) cells via the aryl hydrocarbon receptor and increases their DNAM-1 cell surface expression. This activation improves the cytotoxicity of NK cells against B16F10 melanoma cells and augments their immunoregulatory functions in EAE by interacting with CD155+ dendritic cells (DC). Noteworthy, the immunosuppressive effect of laquinimod-activated NK cells was due to decreasing MHC class II antigen presentation by DC and not by increasing DC killing. Conclusions This study clarifies how DNAM-1 modifies the bidirectional crosstalk of NK cells with CD155+ DC, which can be exploited to suppress CNS autoimmunity and strengthen tumor surveillance
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