Many dinosaur species are known from scant remains, with some estimates suggesting 75% are known from five or fewer individuals. Auroraceratops rugosus was typical in this regard when it was named in 2005 based upon a single skull from the Gobi Desert in northwestern China. But that is no longer the case.
Today, large-scale communication satellite constellations, also known as megaconstellations, have been more and more popular. OneWeb launched the first batch of satellites of an initial 650-satellite constellation in February 2019, and SpaceX also launched the first batch of its 12,000-satellite constellation in May 2019. On July 8, Amazon also filed an application with the FCC for its planned satellite constellation with 3,236 satellites. These satellite constellations are expected to be a game changer by realizing the worldwide satellite Internet service.
New York (July 11, 2019)--As members of the House Committee on Energy & Commerce move to debate, amend, and revise a host of important health proposals, the American Geriatrics Society (AGS) again pledged enthusiastic support for one of the Committee's most important bills under consideration: The Educating Medical Professionals and Optimizing Workforce Efficiency and Readiness (EMPOWER) for Health Act of 2019 (H.R. 2781).
An automated system developed by MIT researchers designs and 3-D prints complex robotic parts called actuators that are optimized according to an enormous number of specifications. In short, the system does automatically what is virtually impossible for humans to do by hand.
The tobacco industry’s court-ordered anti-smoking advertisements reached just 40.6% of U.S. adults and 50.5% of current smokers in 2018, according to new research from The University of Texas MD Anderson Cancer Center. Exposure to the advertisements was even lower among certain ethnic and socioeconomic subgroups historically targeted by tobacco industry marketing.
Scientists have known insects experience something like pain since 2003, but new research published today from Associate Professor Greg Neely and colleagues at the University of Sydney proves for the first time that insects also experience chronic pain that lasts long after an initial injury has healed.
Cells from the rare individuals who naturally control HIV infection have been the focus of investigation for nearly 15 years with the aim of elucidating their specific features. Following research on the ANRS CO21 CODEX and CO6 PRIMO cohorts, scientists from the Institut Pasteur have described the characteristics of CD8 immune cells in these "HIV controller" subjects. The unique antiviral power of these immune cells can be attributed to an optimal metabolic program that confers persistence and the ability to react effectively against infected cells.
In recent years, the idea of life on other planets has become less far-fetched. NASA announced June 27 that it will send a vehicle to Saturn's icy moon, Titan, a celestial body known to harbor surface lakes of methane and an ice-covered ocean of water, boosting its chance for supporting life.
Immune checkpoint blockade (ICB) therapy using the antibody that combats the programmed cell death ligand 1 (PD-L1) shows great potential and is causing a revolution in clinical cancer management. Unfortunately, only a subset of treated patients responds to current ICB therapies, likely due to the immunological tolerance of tumors. Therefore, developing a practical strategy to combat this immunological tolerance and amplify ICB therapies has become a priority.
Gaku Kudo of Hokkaido University and Elisabeth J. Cooper of the Arctic University of Norway have demonstrated that early snowmelt results in the spring ephemeral Corydalis ambigua flowering ahead of the emergence of its pollinator, the bumblebee.