The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

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

Visual Narrative and Temporal Relevance: Segueing Instant Replay into Live Broadcast TV

Professional production of live TV combines real-time and recorded video into a single broadcast stream. In "live" TV, non-live "instant replay" footage can help viewers to make sense of what has just happened. This article shows how multi-person TV production teams assemble timely and relevant instant replays that can be seamlessly combined with real-time footage during live broadcasts. Detailed interaction analysis demonstrates how this work is dependent on coordinated practices, and how team members achieve this by orienting to narrative concerns across multiple temporalities to produce topically useful instant replays, displaying clip relevance, and help segueing transitions between the ongoing action and replay. We conclude by examining the interrelationships between the sequential flow of visual content, the role of talk in mediating time-shifted visual alignments, and how members make their work visible and accountable to one another and to their intended audience

Anti Anything: 486th Antiaircraft Artillery (aw) Battalion (sp)

A history and directory of the World War II Antiaircraft Artillery Battalion 486. Created by members of the Battalion. Includes indexes of names and towns of origin for the members. as well as numerous photographic portraits of personnel.https://digitalmaine.com/books/1115/thumbnail.jp

Anti Anything: 486th Antiaircraft Artillery (aw) Battalion (sp)

A history and directory of the World War II Antiaircraft Artillery Battalion 486. Created by members of the Battalion. Includes indexes of names and towns of origin for the members. as well as numerous photographic portraits of personnel.https://digitalmaine.com/books/1115/thumbnail.jp