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As the COVID-19 pandemic and interventions intended to minimize its spread continue to impact daily life, personality research may help to address the different ways in which people respond to a major global health crisis. The present study assessed the role of dark personality traits in predicting different responses to the pandemic. A nationally representative sample of 412 Americans completed measures of the Dark Tetrad as well as perceptions of COVID-19 threat, emergency beliefs, and positive and negative affect in response to COVID-19. Narcissism and Machiavellianism predicted greater negative affect and perceptions of threat during the pandemic, while psychopathy predicted positive affect. Conversely, sadism predicted greater positive affect. Dark personality also showed some predictive ability in explaining pandemic-related behaviors (e.g., more frequent cleaning) but not others (e.g., social distancing). Our findings provide evidence for differences in how dark personality traits predict individual responses to global crises.David Briggs was a surface analysis pioneer. Starting in 1970 and continuing throughout his career, Dave used his expertise, vision and ability to quickly master new surface analysis methods and solve important industrial problems. It certainly helped that he was an outstanding fund raiser in both industrial and academic settings, which ensured he always had an impressive array of the latest, most advanced surface analysis instrumentation at his disposal. He insisted on doing surface analysis correctly and through his publications, databases and books he provided the community with the needed guidelines and methods to do so. In the 1970s Dave's research was largely focused on x-ray photoelectron spectroscopy (XPS, also known as electron spectroscopy for chemical analysis (ESCA)) characterization of polymers and catalysts. He added secondary ion mass spectrometry (SIMS) to his instrumentation arsenal in the 1980s and provided many of the key, pioneering publications that described how to use this method to characterize polymer surfaces. He also did some of the first surface analysis imaging experiments in the 1980s. In the 1990s he continued his XPS and SIMS research on polymers and advanced the surface analysis community's ability to properly interpret surface analysis data through data bases and advanced data processing methods. Dave continued to publish polymer and catalysis surface analysis papers in the 2000s, but also expanded his surface analysis studies to several other topics.One of the most common policy prescriptions to reduce the spread of COVID-19 has been to legally enforce social distancing through shelter-in-place orders (SIPOs). This study examines the role of localized urban SIPO policy in curbing COVID-19 cases. Specifically, we explore (i) the comparative effectiveness of county-level SIPOs in urbanized as compared to non-urbanized areas, (ii) the mechanisms through which SIPO adoption in urban counties yields COVID-related health benefits, and (iii) whether late adoption of a statewide SIPO yields health benefits beyond those achieved from early adopting counties. We exploit the unique laboratory of Texas, a state in which the early adoption of local SIPOs by densely populated counties covered almost two-thirds of the state's population prior to adoption of a statewide SIPO on April 2, 2020. Using an event study framework, we document that countywide SIPO adoption is associated with an 8 percent increase in the percent of residents who remain at home full-time and between a 13 to 19 percent decrease in foot-traffic at venues that may contribute to the spread of COVID-19 such as restaurants, bars, hotels, and entertainment venues. These social distancing effects are largest in urbanized and densely populated counties. https://www.selleckchem.com/ Then, we find that in early adopting urban counties, COVID-19 case growth fell by 21 to 26 percentage points two-and-a-half weeks following adoption of a SIPO, a result robust to controls for county-level heterogeneity in COVID-19 outbreak timing, coronavirus testing, the age distribution, and political preferences. We find that approximately 90 percent of the curbed growth in COVID-19 cases in Texas came from the early adoption of SIPOs by urbanized counties, suggesting that the later statewide shelter-in-place mandate yielded relatively few health benefits.The COVID-19 pandemic has altered the business world in historic proportions. Whereas the short-term effects have been felt by many, the long-term effects of the pandemic will likely create paradigm shifts of unknown impact. The novelty of this situation has had drastic and potentially lasting organizational effects. We use existing research to explore and presage the effects of these paradigm shifts across multiple domains including job security, financial consequences, remote work, worker wellbeing, and career attitudes. By exploring the implications in each area of business, the hope is that researchers and practitioners can better prepare for a post-pandemic future.In this work, we developed a novel "click"-ready pH-cleavable phosphoramidate linker for controlled-release of monomethyl auristantin E (MMAE) in antibody- and small molecule-drug conjugates application. This water-soluble linker was found to have tremendous stability at physiological pHs while rapidly releasing its payload at acidic pH. The linker can also be tailored to release payloads of diverse functional groups, broadening its applications.Efficient approaches that enable the synthesis of analogs of natural product antibiotics are needed to keep up with the emergence of multiply-resistant strains of pathogenic organisms. One promising candidate in this area is fidaxomicin, which boasts impressive in vitro anti-tubercular activity but has poor systemic bioavailability. We designed a flexible synthetic route to this target to enable the exploration of new chemical space and the future development of analogs with superior pharmacokinetics. We developed a robust approach to each of the key macrocyclic and sugar fragments, their union via stereoselective glycosylation, and a convergent late-stage macrolide formation with fully glycosylated fragments. Although we were able to demonstrate that the final Suzuki cross-coupling and ring-closing metathesis steps enabled macrocycle formation in the presence of the northern resorcylic rhamnoside and southern novioside sugars, these final steps were hampered by poor yields and the formation of the unwanted Z-macrocycle as the major stereoisomer.
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