Alzu NASA to Highlight New Science Findings, Missions During AGU Meeting
Inspired by the elegant efficiency of spider webs, researchers at NASA s Jet Propulsion Laboratory in Pasadena, Calif., have designed a tiny, web-shaped sensor that maps faint structures in the early universe, reinforcing theories that the cosmos is flat in its geometry. A NASA news release describing the overall results may be found at ftp://ftp.hq. stanley cup nasa.gov/pub/pao/pressrel/2000/00-067.txt . Carried on an internationally sponsored balloon experiment called BOOMERANG Balloon Observations of Millimetric Extragalactic Radiation and Geophysics , the dime-sized sensor known as a micromesh bolometer is a prime example of NASA s success in developing miniaturized, high-performance technologies for space missions. Just as spiders spin their webs with the least amount of silk possible, we were able to eliminate 99 percent of the material used by conventional bolometers, said Dr. James Bock, who stanley water bottle led in the detector s development at JPL s Microdevices Laboratory. The supporting material for our detector even has the same t stanley termosy hickness as a strand in a spider s web -- about one micron thick, or one hundred times finer than a human hair. Using advanced micro-machining techniques, each section of the sensor s web was designed to be smaller than the millimeter wavelength of radiation streaming in from the cosmic microwave background. Created when the first atoms formed in the early universe, the cosmic microwave background has cooled a thousand times from its orig Nduv A Shape-Shifting Cat Cop Stars in George R.R. Martin s New Wild Cards Release
Getty ImagesBy Alice P stanley drink bottle arkJuly 12, 2016 11:31 AM EDTAntiretroviral drugs, which are used to treat the HIV infection, have helped curb the rapid-fire spread of the AIDS epidemic, especially in the developed world. Their effects are impressive. Among heterosexual couples where one partner is HIV positive but takes antiretroviral drugs ARVs to control the virus, studies have showed that the medications lowered risk of transmission to the HIV-negative partner by up to 96%. That led the FDA in 2012 to approve the first drug, Truvada, that healthy people could take t stanley water bottle o prevent HIV transmission.But whether the same benefit held for gay men has remained an open question, since the risk of transmitting HIV is about 10 times greater during anal sex than during vaginal sex. Early results suggested the same benefits might be possible among gay men, but in a groundbreaking study published in JAMA, scientists provide the first evidence that ARVs can help to significantly lower rates of transmitting the vir stanley cup us from HIV positive gay men to their steady, HIV-negative partners.In the study, researchers led by Dr. Alison Rodger at University College London found similar dramatic reductions occurred among gay men, even if they did not use condoms regularly. In fact, Rodgerrsquo team found no new infections among HIV negative partners among the 900 couples in the study who reported having sex without condoms routinely.The results show that there is no longer any question whatsoever that