The Importance of Community-Based and Community-Partnered COVID-19 Testing for Reducing Disparities Among African American Populations.

Background: Health inequalities in African American communities have been further exacerbated by COVID-19. Public health departments and other safety-net providers across the United States have partnered with community-based organizations to address barriers to COVID-19 testing in disproportionately impacted communities. This narrative review summarizes lessons learned from published examples of these community-based COVID-19 testing efforts.

Correlates of HIV-Related Stigmas Among African American Church-Affiliated Populations in Kansas City.

HIV-related stigmas contribute to disparities, and contact with HIV-positive individuals has been suggested to reduce stigma. Faith-based organizations have been recognized as important to stigma reduction efforts among African American populations; however, relatively few church-based studies have measured HIV-related stigma. This study uses baseline data ( = 1,448) from a study with 14 African American churches in Kansas City, Missouri and Kansas, to examine correlates of HIV-related stigmas among church members and community members accessing church social services using two previously validated scales that measure discomfort interacting with individuals with HIV and anticipated stigma or rejection.

Dynamic hybrid life cycle assessment of energy and carbon of multicrystalline silicon photovoltaic systems.

This paper advances the life cycle assessment (LCA) of photovoltaic systems by expanding the boundary of the included processes using hybrid LCA and accounting for the technology-driven dynamics of embodied energy and carbon emissions. Hybrid LCA is an extended method that combines bottom-up process-sum and top-down economic input-output (EIO) methods. In 2007, the embodied energy was 4354 MJ/m(2) and the energy payback time (EPBT) was 2.

The 1.7 kilogram microchip: energy and material use in the production of semiconductor devices.

The scale of environmental impacts associated with the manufacture of microchips is characterized through analysis of material and energy inputs into processes in the production chain. The total weight of secondary fossil fuel and chemical inputs to produce and use a single 2-gram 32MB DRAM chip are estimated at 1600 g and 72 g, respectively. Use of water and elemental gases (mainly N2) in the fabrication stage are 32,000 and 700 g per chip, respectively.