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Synthesis of Highly Substituted Oxaboroles from Oxaboranes via a Selective Petasis Borono-Mannich Reaction.
Org Lett
September 2024
Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.
We present a novel and efficient method for the synthesis of highly substituted non-benzofused oxaboroles. Reactions of oxaboranes, morpholine, and salicylaldehyde in toluene heated to 85 °C for 4 h produce the corresponding oxaborole products in yields up to 93%. The process is effective across a diverse substrate scope and can be scaled to produce gram quantities of densely functionalized oxaboroles in excellent yield.
View Article and Find Full Text PDFEvaluation of Transmission Near the Christiansen Wavelength for Dynamic Sand Samples.
Appl Spectrosc
July 2024
U.S. Naval Research Laboratory, Naval Research Labs-Optical Materials, Washington, District of Columbia, USA.
Many optical applications, including free-space optical communications, lidar, and astronomical measurements, are impacted by the presence of light-scattering particles also known as obscurants. Scattering from particles consisting of sand, dust, dirt, and other substances can significantly degrade optical signals. For many obscurants, the index of refraction is dependent on the wavelength of light, and there exists a Christiansen wavelength (λ) at which scattering is at a minimum.
View Article and Find Full Text PDFQuantifying Intubation Forces on Incisors and Tongue Base Across Exposure Difficulty and Experience in a Simulator.
Cureus
July 2023
Otolaryngology, University of Cincinnati Medical Center, Cincinnati, USA.
Article Synopsis
- The study aims to measure the forces exerted during laryngoscopy across different expertise levels (students, residents, staff) and varying airway difficulties using force gauges attached to a mannequin.
- Results show that as airway difficulty increased, all groups applied more force on the teeth and tongue base, with students exerting the most force overall.
- The findings indicate that the measurement of these forces could serve as valuable indicators for assessing training and competency in laryngoscopy techniques.
Oxidative stress and COVID-19-associated neuronal dysfunction: mechanisms and therapeutic implications.
Acta Biochim Biophys Sin (Shanghai)
June 2023
Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn-AL 36849, USA.
Severe acute respiratory syndrome (SARS)-CoV-2 virus causes novel coronavirus disease 2019 (COVID-19), and there is a possible role for oxidative stress in the pathophysiology of neurological diseases associated with COVID-19. Excessive oxidative stress could be responsible for the thrombosis and other neuronal dysfunctions observed in COVID-19. This review discusses the role of oxidative stress associated with SARS-CoV-2 and the mechanisms involved.
View Article and Find Full Text PDFThe Role of Vitamin C in Human Immunity and Its Treatment Potential Against COVID-19: A Review Article.
Cureus
January 2023
Foundational Sciences, Nova Southeastern University (NSU) Florida, Dr. Kiran C. Patel College of Osteopathic Medicine, Clearwater, USA.
The outbreak of the COVID-19 pandemic has left clinicians around the world searching for viable prevention and treatment options to use against the virus. The important physiologic properties of vitamin C have been well documented regarding its use by immune cells and its role as an antioxidant. It has previously shown potential as a prophylactic and treatment option for other respiratory viruses, and because of this, there has been intrigue into whether these positive outcomes translate into a cost-effective prevention and treatment option for COVID-19.
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