Tech
New research brings to light for the first time the evolution of maternal roles and parenting responsibilities in one of our oldest evolutionary ancestors
Australopithecus africanus mothers breastfed their infants for the first 12 months after birth, and continued to supplement their diets with breastmilk during periods of food shortage
Tooth chemistry analyses enable scientists to 'read' more than two-million-year-old teeth
Finding demonstrates why early human ancestors had fewer offspring and extended parenting role
Ferrofluids, with their mesmeric display of shape-shifting spikes, are a favorite exhibit in science shows. These eye-catching examples of magnetic fields in action could become even more dramatic through computational work that captures their motion.
Tropical Storm Barry made landfall mid-day on July 13, but infrared satellite imagery from NASA early on July 14 continued to show the heaviest rainmaking storms were still off-shore. NASA's Aqua satellite analyzed cloud top temperatures in the storm which gave an indication of the storm's strength.
SAN ANTONIO -- July 15, 2019 -- Southwest Research Institute and The University of Texas at San Antonio are collaborating to acquire data for a computational model for supercritical carbon dioxide (sCO2) energy generation. The work, led by Jacob Delimont of SwRI's Mechanical Engineering Division and Christopher Combs of UTSA's College of Engineering, is supported by a $125,000 grant from the Connecting through Research Partnerships (Connect) Program.
New Rochelle, NY, July 8, 2019--A new expert review highlights the opportunities and methodological challenges at this critical juncture in the growth of the field of metagenomics.
The concept of 'quasiparticles' is a highly successful framework for the description of complex phenomena that emerge in many-body systems. One species of quasiparticles that in particular has attracted interest in recent years are polaritons in semiconductor materials. These are created by shining light onto a semiconductor, where the photons excite electronic polarization waves, called excitons.
A verdant, nearly roadless place, the Western Amazon in South America may be the most biologically diverse place in the world. There, many people live in near isolation, with goods coming in either by river or air. Turning to crops for profit or sustenance, farmers operate small family plots to make a living.
Unfortunately, these farmers and their smallholder agriculture operations pose serious threats to biodiversity in northeastern Peru, according to a team of researchers led by Princeton University.
In spite of increasing demand, the number of newly developed drugs decreased continuously in the past decades. The search for new active substances, their production, characterization, and screening for biological effectiveness are very complex and costly. One of the reasons is that all three steps have been carried out separately so far. Scientists of Karlsruhe Institute of Technology (KIT) have now succeeded in combining these processes on a chip and, hence, facilitating and accelerating the procedures to produce promising substances.
Barry, now a tropical depression, continues moving slowly north through Arkansas and rainfall and flooding remains a concern. NASA-NOAA's Suomi NPP satellite passed over the south central United States yesterday, July 14 and captured a visible image of then Tropical Storm Barry.
Tropical Storm Barry tracked through northwestern Louisiana on July 14, and weakened to a tropical depression. On its track, Barry dropped up to 15 inches (38 cm) of rain in some isolated placed. Barry's rainfall created flooding along the Mississippi River.
New Rochelle, NY, July 15, 2019--Researchers have shown that among users of pre-exposure prophylaxis (PrEP) to prevent against AIDS that includes tenofovir (Truvada), those with daily use - very high adherence - had only about a 1% average decrease in bone mineral density in the spine and a 0.5% decline in the hip.
CORVALLIS, Ore. - In Oregon's fertile Willamette River Basin, where two-thirds of the state's population lives, managing water scarcity would be more effective if conservation measures were introduced in advance and upstream from the locations where droughts are likely to cause shortages, according to a new study.
Metamaterials are artificial materials engineered to have properties not found in naturally occurring materials and they are best known as materials for the 'invisibility cloak' often featured in SF novels or games. By precisely designing artificial atoms that are smaller than the wavelength of light and controlling the polarization and spin of light, new optical properties are made that are not found in nature. However, the current process require numerous trial and failures until the right material is obtained. It is not only time consuming but also compromise efficiency.
DURHAM, N.C. -- Efforts by the FDA and some cities to limit the availability and appeal of e-cigarettes to young users could drive some existing users to smoke more tobacco cigarettes to get their fix, according to new research from Duke Health.
The findings, from a survey of 240 young U.S. adults who use both e-cigarettes and traditional tobacco cigarettes, are scheduled to be published July 15 in the journal Substance Use & Misuse.
A new class of 2D perovskite materials with edges that are conductive like metals and cores that are insulating was found by researchers who said these unique properties have applications in solar cells and nanoelectronics.
"This observation of the metal-like conductive states at the layer edges of these 2D perovskite materials provides a new way to improve the performance of next-generation optoelectronics and develop innovative nanoelectronics," said Kai Wang, assistant research professor in materials science and engineering at Penn State and lead author on the study.
Living a healthy lifestyle may help offset a person's genetic risk of dementia, according to new research.
The study was led by the University of Exeter - simultaneously published today in JAMA and presented at the Alzheimer's Association International Conference 2019 in Los Angeles. The research found that the risk of dementia was 32 per cent lower in people with a high genetic risk if they had followed a healthy lifestyle, compared to those who had an unhealthy lifestyle.