Staphylococcus aureus remains a leading global cause of bacterial infection-associated mortality and has eluded prior vaccine development efforts. S. aureus α-toxin (Hla) is an essential virulence factor in disease, impairing the T cell response to infection.
View Article and Find Full Text PDFBackground: Pediatric oncology patients have increased risk for critical illness; outcomes are well described in high-income countries (HICs); however, data is limited for low- and middle-income countries (LMICs).
Methods: We systematically searched PubMed, EMBASE, Web of Science, CINAHL and Global Health databases for articles in 6 languages describing mortality in children with cancer admitted to intensive care units (ICUs) in LMICs. Two investigators independently assessed eligibility, data quality, and extracted data.
Background: Adopting high-value, cost-conscious care (HVCCC) principles into medical education is growing in importance due to soaring global healthcare costs and the recognition that efficient care can enhance patient outcomes and control costs. Understanding the current opportunities and challenges doctors face concerning HVCCC in healthcare systems is crucial to tailor education to doctors' needs. Hence, this study aimed to explore medical students, junior doctors, and senior doctors' experiences with HVCCC, and to seek senior doctors' viewpoints on how education can foster HVCCC in clinical environments.
View Article and Find Full Text PDFAsbestos identification is a complex environmental and economic challenge. Typical commercial identification of asbestos involves sending samples to a laboratory where someone learned in the field uses light microscopy and specialized mounting to identify the morphologically distinct signatures of Asbestos. In this work we investigate the use of a portable (30x) microscope which works with a smart phone camera to develop an image recognition system.
View Article and Find Full Text PDFHuman neutrophils respond to multiple chemoattractants to guide their migration from the vasculature to sites of infection and injury, where they clear pathogens and amplify inflammation. To properly focus their responses during this complex navigation, neutrophils prioritize pathogen- and injury-derived signals over long-range inflammatory signals, such as the leukotriene LTB4, secreted by host cells. Different chemoattractants can also drive qualitatively different modes of migration even though their receptors couple to the same Gα family of G proteins.
View Article and Find Full Text PDFPLoS One
October 2022
Objective: To determine whether modified K-12 student quarantine policies that allow some students to continue in-person education during their quarantine period increase schoolwide SARS-CoV-2 transmission risk following the increase in cases in winter 2020-2021.
Methods: We conducted a prospective cohort study of COVID-19 cases and close contacts among students and staff (n = 65,621) in 103 Missouri public schools. Participants were offered free, saliva-based RT-PCR testing.
Background: The current study investigated the experience of sexual harassment as a risk factor for weight gain and weight/shape concerns in a community sample of adolescents, with potential mediating factors self-objectification and psychological distress.
Method: 1034 Australian adolescents (aged 11 to 19 years) from the EveryBODY longitudinal study of disordered eating pathology participated. Data were collected through online surveys annually for 3 years.
Background: Since March 2020, COVID-19 has disproportionately impacted communities of color within the United States. As schools have shifted from virtual to in-person learning, continual guidance is necessary to understand appropriate interventions to prevent SARS-CoV-2 transmission. Weekly testing of students and staff for SARS-CoV-2 within K-12 school setting could provide an additional barrier to school-based transmission, especially within schools unable to implement additional mitigation strategies and/or are in areas of high transmission.
View Article and Find Full Text PDFBackground: New York City was among the earliest and hardest hit areas during the COVID-19 pandemic. Prior to the peak of the surge in April 2020, a makeshift hospital was opened to address the growing need of overflow beds in Brooklyn, New York. A rehabilitation center was converted into a satellite hospital with a capacity of up to 425 patient beds in 10 days.
View Article and Find Full Text PDFObjective: The experience of sexual harassment (SH) may exacerbate the drive toward an ideal and often unattainable physical appearance, creating the foundation of unhealthy eating, and greater shape and weight concerns. This systematic review aimed to synthesize evidence on the relationship between SH and eating disorder psychopathology, as well as mediating and moderating factors that contribute to this relationship.
Method: Six key databases were searched from inception to August 2020; including CINAHL, PsycInfo, PubMed, Medline, Scopus, and Web of Science.
Amidst the inter-related challenges of climate change, resource scarcity, and population growth, the built environment must be designed in a way that recognises its role in shaping and being shaped by complex social and ecological systems. This includes avoiding the degradation of living systems in the design and construction of buildings and infrastructure, as well as enhancing the built environment's resilience to disturbance by those systems. This paper explores the potential for biomimetic place-based design (BPD) to inform resilient and regenerative built environment outcomes by learning from local ecosystems.
View Article and Find Full Text PDFBiomimetics (Basel)
November 2019
Complex systems challenges like those facing 21-century humanity, require system-level solutions that avoid siloed or unnecessarily narrow responses. System-level biomimicry aims to identify and adopt design approaches that have been developed and refined within ecosystems over 3.8 billion years of evolution.
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