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A multifactorial, evidence-based analysis of pathophysiology in Spaceflight Associated Neuro-Ocular Syndrome (SANS).
Eye (Lond)
January 2025
Department of Ophthalmology, Houston Methodist Hospital, Houston, TX, USA.
The National Aeronautics and Space Administration (NASA) in the United States has been studying a fascinating and unique constellation of neuro-ophthalmic findings collectively known as Spaceflight Associated Neuro-Ocular Syndrome (SANS). SANS is unique to the space environment of microgravity and produces novel physiological and pathological findings that have no direct terrestrial equivalent. The neuro-ophthalmic phenomenon is a major physiologic barrier to future planetary spaceflight.
View Article and Find Full Text PDFPredictive Forwarding Rule Caching for Latency Reduction in Dynamic SDN.
Sensors (Basel)
December 2024
Department of Electrical Engineering & Computer Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
In mission-critical environments such as industrial and military settings, the use of unmanned vehicles is on the rise. These scenarios typically involve a ground control system (GCS) and nodes such as unmanned ground vehicles (UGVs) and unmanned aerial vehicles (UAVs). The GCS and nodes exchange different types of information, including control data that direct unmanned vehicle movements and sensor data that capture real-world environmental conditions.
View Article and Find Full Text PDFDynamic treeline and cryosphere response to pronounced mid-Holocene climatic variability in the US Rocky Mountains.
Proc Natl Acad Sci U S A
January 2025
Department of Earth Sciences, Montana State University, Bozeman, MT 59717.
Climate-driven changes in high-elevation forest distribution and reductions in snow and ice cover have major implications for ecosystems and global water security. In the Greater Yellowstone Ecosystem of the Rocky Mountains (United States), recent melting of a high-elevation (3,091 m asl) ice patch exposed a mature stand of whitebark pine () trees, located ~180 m in elevation above modern treeline, that date to the mid-Holocene (c. 5,950 to 5,440 cal y BP).
View Article and Find Full Text PDFTrends in the epidemiology of intravascular device-associated bacteremia among French hematology patients: insights from the SPIADI prospective multicenter study, 2020-2024.
Ann Hematol
January 2025
Mission Nationale Surveillance et Prévention des Infections Associées aux Dispositifs Invasifs (SPIADI), Centre d'Appui pour la Prévention des Infections Associées aux Soins en région Centre val de Loire, Centre Hospitalier Régional Universitaire, Hôpital Bretonneau, Tours, France.
Hematology patients require central venous catheters for cancer treatment and nutrition, which increases their risk of intravascular device-associated bacteremia. In the absence of recent data, we investigated intravascular device-associated bacteremia in this specific context. A three-month surveillance was conducted annually in 27 hematology wards, using a protocol derived from the HAI-Net ICU ECDC protocol (2020-2024).
View Article and Find Full Text PDFPublic advocates, private advisors: the autonomy, function, and influence of the President's Council of Advisors on Science and Technology.
Front Res Metr Anal
December 2024
Science and Technology Policy Program, Baker Institute for Public Policy, Rice University, Houston, TX, United States.
US national expert advisory bodies related to science, technology, and innovation (STI) policy have a wide range of missions, governing structures, operational practices, cultures, and impact on federal policymaking. This paper offers an analytical framework for assessing the autonomy, function, and influence of of the President's Council of Advisors on Science and Technology (PCAST), a federal advisory committee consisting of 30 elite scientists, engineers, and industry leaders appointed by and advising the president. We demonstrate that PCAST carries both a strong instrumental advisory role, providing substantive advice to White House STI policy development, and a significant symbolic advisory role, offering visible public support to presidential decisions and initiatives related to STI.
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