Human performance in the rail freight yard.

Human performance in the rail freight yard has been identified as a source of risk for rail freight operations. This is both within the yard itself, and also with train preparation issues leading to incidents on the network. The rail freight yard is an area that has received limited research attention.

Impact of influenza and pneumococcal vaccines on HIV persistence and immune dynamics during suppressive antiretroviral therapy.

Objective: We sought to determine if standard influenza and pneumococcal vaccines can be used to stimulate HIV reservoirs during antiretroviral therapy (ART).

Design: A prospective, randomized, double-blinded, placebo-controlled, crossover trial of two clinically recommended vaccines (influenza and pneumococcal).

Methods: Persons with HIV on ART ( N  = 54) were enrolled in the clinical trial.

COVID-19 Telemedicine and Vaccination at an Urban Safety Net HIV Medicine Clinic.

In response to the emerging coronavirus disease 2019 (COVID-19) pandemic in March 2020, the Owen Clinic at UC San Diego Health scaled up telemedicine to ensure the continuity of human immunodeficiency virus primary care. A group of nurse practitioners, physicians, and a physician assistant developed a dedicated COVID-19 telemedicine clinic to provide virtual health care services to patients with or at risk for severe acute respiratory syndrome coronavirus 2 infection. This effort contributed to successful health outcomes for the clinic's 476 patients diagnosed with COVID-19.

A new non-diffusional gas bubble production route in used nuclear fuel: implications for fission gas release, cladding corrosion, and next generation fuel design.

A novel relationship between noble metal phase particles and fission gas bubble production in used nuclear fuel is described. The majority of Te atoms within noble metal phase undergo radioactive decay to form stable Xe within a few hours after particle formation. This results in the production of clusters of Xe atoms contained within the solid metal matrix exhibiting an equivalent gas bubble pressure approaching 1 GPa.