LSST Science Book, Version 2.0

A survey that can cover the sky in optical bands over wide fields to faint magnitudes with a fast cadence will enable many of the exciting science opportunities of the next decade. The Large Synoptic Survey Telescope (LSST) will have an effective aperture of 6.7 meters and an imaging camera with field of view of 9.6 deg^2, and will be devoted to a ten-year imaging survey over 20,000 deg^2 south of +15 deg. Each pointing will be imaged 2000 times with fifteen second exposures in six broad bands from 0.35 to 1.1 microns, to a total point-source depth of r~27.5. The LSST Science Book describes the basic parameters of the LSST hardware, software, and observing plans. The book discusses educational and outreach opportunities, then goes on to describe a broad range of science that LSST will revolutionize: mapping the inner and outer Solar System, stellar populations in the Milky Way and nearby galaxies, the structure of the Milky Way disk and halo and other objects in the Local Volume, transient and variable objects both at low and high redshift, and the properties of normal and active galaxies at low and high redshift. It then turns to far-field cosmological topics, exploring properties of supernovae to z~1, strong and weak lensing, the large-scale distribution of galaxies and baryon oscillations, and how these different probes may be combined to constrain cosmological models and the physics of dark energy.Comment: 596 pages. Also available at full resolution at http://www.lsst.org/lsst/sciboo

Supplement: "Localization and broadband follow-up of the gravitational-wave transient GW150914" (2016, ApJL, 826, L13)

This Supplement provides supporting material for Abbott et al. (2016a). We briefly summarize past electromagnetic (EM) follow-up efforts as well as the organization and policy of the current EM follow-up program. We compare the four probability sky maps produced for the gravitational-wave transient GW150914, and provide additional details of the EM follow-up observations that were performed in the different bands

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Snap out stigma photovoice project in the U.S. South

Background: The purpose of SNAP Out Stigma (SOS) was to design and implement a community-based intervention to reduce HIV-related stigma for people living with HIV (PLWH) in the Deep South. This region is a subset of 9 states including Memphis, Tennessee (project site) driving the epidemic in the United States. The purpose of this paper is to explain how PLWH in the U.S. South used Photovoice to communicate stigmatizing lived experiences and contextualize their intersection with multi-level sources of support. Methods: PLWH attended one-on-one and/or group sessions with other PLWH. In Session 1, PLWH received a project overview, met other participants, received a camera and camera training, completed a standardized internalized stigma scale, discussed experiences of internalized stigma, and were instructed to take 3–10 pictures that captured stigma. In Session 2, PLWH discussed the pictures and their meaning. In Session 3, PLWH expanded on what they shared in previous sessions in a one-on-one interview. Thematic analysis captured key patterns of how PLWH experienced stigma. Results: Forty-seven PLWH attended Session 1 and were issued a camera. Of those, 35 completed sessions 2 and 3. Participants self-identified as cis man who has sex with men (n = 18), ciswoman (n = 5), transwoman (n = 10), and non-binary (n = 2). Four emergent themes intersecting with internalizations of stigma were identified including: medical, social support, church, and self. Conclusions: The SOS intervention created a safe space for PLWH to share lived experiences of stigmatization. Photovoice facilitated discussion topics ranging from healing and recovery to overcoming factors of social determinants of HIV. We identified trauma-informed growth as an area of future programs for PLWH

An exploration of U.S. Southern faith leaders’ perspectives of hiv prevention, sexuality, and sexual health teachings

Reducing human immunodeficiency viruses (HIV) and acquired immune deficiency syndrome (AIDS) racial/ethnic disparities in the Deep South has been a critical objective of the U.S. National HIV/AIDS Strategy. This finding, originally published in 2010 by the Office of National AIDS Policy, serves as a complement to the Health and Human Resources and Services Administration’s Ending the HIV Epidemic (EtHE): A Plan for America. The EtHE plan, released in 2019, emphasizes community stakeholder involvement to achieve the planning goals of decreasing new HIV infections in key U.S. geographic areas. According to the plan, an important stakeholder is faith leaders, especially around stigma reduction. This paper focuses on a community–academic research partnership’s exploration of southern Black faith leaders’ teaching perspectives regarding HIV prevention, sexuality, and sexual health in predominantly Black congregations in Memphis, Tennessee. The partnership conducted four focus groups using a semi-structured discussion interview. Any adult faith leader involved in ministry work in a predominantly Black church was eligible to participate in the discussion. A total of 26 faith leaders with a mean age of 54, representing four Christian denominations, consented to participate in the study. Emerging themes included: (1) restriction of scripture to teach prevention and address sexuality, (2) role of secrecy and silence in living with HIV, and (3) impact of the stigma of HIV and sexuality. Findings may inform nationwide jurisdictional implementation plans, particularly for faith-based interventions in southern churches working toward ending the HIV epidemic

Sustaining an HIV Prevention and Wellness Program for Sexual Gender Minorities during the COVID-19 Pandemic

Improving mental health, body image, and financial stability is paramount to achieving viral suppression and maintaining HIV-negative status for minoritized communities. The purpose of this paper is to describe the lessons learned from maintenance of an HIV prevention and wellness program during the COVID-19 pandemic. A three-session program was implemented in a hybrid format to account for county-wide restrictions and reopening processes. Lessons learned include the utility of a hybrid format, importance of CBPR partnership, innovation in virtual platform, value of social media presence and upkeep, and use of multiple methods to ascertain evaluative data. Sustaining an HIV prevention and wellness program requires strong research collaborations and ongoing engagement with priority populations and the flexibility to pivot as needed

An Engaged Community of Faith to Decrease HIV Stigma in the U.S. South

Community members from a city in the U.S. Deep South identified root causes of HIV racial disparities, including stigma. This meeting report describes how we developed and implemented a conference series to address HIV stigma. We used community feedback and bidirectional learning to host two meetings in observance of National HIV Testing Day (June 2021) and National Southern HIV/AIDS Awareness Day (August 2021). We established a 10-member organizing committee workgroup that met monthly to plan the Faith Summit in honor of National Black HIV Awareness Day (February 2022). Lessons learned include (a) the effectiveness of different community engagement strategies, including participatory evaluative approaches, and (b) strategies to maintain engagement and increase participation, such as reliance on personal and professional networks and prompting the community about forthcoming interventions. Sustaining a conference series to end HIV stigma requires commitment and inclusive participation. This collaborative project offers additional evidence that faith communities can be a part of the solution to ending the HIV epidemic and related health disparities

An Engaged Community of Faith to Decrease HIV Stigma in the U.S. South

Community members from a city in the U.S. Deep South identified root causes of HIV racial disparities, including stigma. This meeting report describes how we developed and implemented a conference series to address HIV stigma. We used community feedback and bidirectional learning to host two meetings in observance of National HIV Testing Day (June 2021) and National Southern HIV/AIDS Awareness Day (August 2021). We established a 10-member organizing committee workgroup that met monthly to plan the Faith Summit in honor of National Black HIV Awareness Day (February 2022). Lessons learned include (a) the effectiveness of different community engagement strategies, including participatory evaluative approaches, and (b) strategies to maintain engagement and increase participation, such as reliance on personal and professional networks and prompting the community about forthcoming interventions. Sustaining a conference series to end HIV stigma requires commitment and inclusive participation. This collaborative project offers additional evidence that faith communities can be a part of the solution to ending the HIV epidemic and related health disparities