Phys.org - latest science and technology news stories
Why male and female cells behave differently after being reprogrammed into stem cells
Vincent Pasque from KU Leuven, Belgium, and Kathrin Plath from UCLA led an international study into how specialized cells are reprogrammed to induced pluripotent stem cells (iPS). The researchers discovered that female and male cells behave differently after the reprogramming process and that this is due to their different number of X chromosomes.
Using the right plants can reduce indoor pollution and save energy
People in industrialized countries spend more than 80% of their lives indoors, increasingly in air-tight buildings. These structures require less energy for heating, ventilating, and air conditioning, but can be hazardous to human health if particulate matter and potentially toxic gases, including carbon monoxide, ozone, and volatile organic compounds, from sources such as furniture, paints, carpets, and office equipment accumulate. Plants absorb toxins and can improve indoor air quality, but surprisingly little is known about what plants are best for the job and how we can make plants perform better indoor.
Human protein important for cellular communication resembles bacterial toxin
A protein that plays an important role in embryonic development and nervous system wiring in humans appears to have been borrowed from bacteria. In a study published April 19, 2018, in Cell, scientists from the University of Chicago and Stanford University describe the three-dimensional structure of proteins called teneurins for the first time.
Genetic adaptations to diving discovered in humans for the first time
Evidence that humans can genetically adapt to diving has been identified for the first time in a new study. The evidence suggests that the Bajau, a people group indigenous to parts of Indonesia, have genetically enlarged spleens which enable them to free dive to depths of up to 70m.
Optogenetic study shows that male flies find ejaculation pleasurable
Researchers reporting in Current Biology on April 19 show that male fruit flies find sex—and more specifically ejaculation—to be an inherently rewarding experience. The study is the first to show that the rewarding nature of ejaculation is conserved among animals, from flies and mammals. It also adds to evidence that manipulating sexual experience in flies affects their interest in consuming alcohol, the researchers say.
Image: Lagoon Nebula (visible-light view)
This mayhem is all happening at the heart of the Lagoon Nebula, a vast stellar nursery located 4,000 light-years away and visible in binoculars simply as a smudge of light with a bright core.
Source: https://phys.org/
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