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Sat, 23 Oct 2021
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Butterfly

Envisioning a World Without Men

Imagine a world without men: Lauren Bacall but no Bogie, Hillary Clinton but no Bill, no Starsky or Hutch.

This isn't just an unlikely sci-fi scenario. This could be reality, according to Bryan Sykes, an eminent professor of genetics at Oxford University and author of Adam's Curse: A Future Without Men.

"The Y chromosome is deteriorating and will, in my belief, disappear," Sykes told me. A world-renowned authority on genetic material, Sykes is called upon to investigate DNA evidence from crime scenes. His team of researchers is currently compiling a DNA family tree for our species.

Newspaper

How the Brain Learns to Read Can Depend on the Language

For generations, scholars have debated whether language constrains the ways we think. Now, neuroscientists studying reading disorders have begun to wonder whether the actual character of the text itself may shape the brain.

Studies of schoolchildren who read in varying alphabets and characters suggest that those who are dyslexic in one language, say Chinese or English, may not be in another, such as Italian.

Evil Rays

Fertile women 'have sexier voice'



Fertility & voice

A woman's voice becomes more alluring when she is at her most fertile, according to US research. Recordings of women taken at different points in their menstrual cycle were played to people of both sexes.

New Scientist magazine reports that the voices rated as most attractive belonged to women at peak fertility.

Magnify

Scientists to capture DNA of trees worldwide for database

New York - The New York Botanical Garden may be best known for its orchid shows and colorful blossoms, but its researchers are about to lead a global effort to capture DNA from thousands of tree species from around the world.

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Why male pharaoh had feminine physique

Despite genetic mutation, Akhenaten fathered at least six children

Star

Study suggests link between comet bombardment and movement through the galaxy, causing mass extinctions on earth

The sun's movement through the Milky Way regularly sends comets hurtling into the inner solar system -- coinciding with mass life extinctions on earth, a new study claims. The study suggests a link between comet bombardment and the movement through the galaxy.

Comets
©Artby Don Davis / Courtesy of NASA
A large body of scientific evidence now exists that support the hypothesis that a major asteroid or comet impact occurred in the Caribbean region at the boundary of the Cretaceous and Tertiary periods in Earth's geologic history. Such an impact is suspected to be responsible for the mass extinction of many floral and faunal species, including the large dinosaurs, that marked the end of the Cretaceous period.

Calculator

UK computing Grid warming up for world's largest experiment

UK scientists building a computing Grid for particle physics have launched the next phase of their project, in advance of the start of the world's largest experiment. Over the last six years, the GridPP collaboration has successfully built a distributed computer system for scientists working on the world's biggest experiment, the Large Hadron Collider (LHC) at CERN near Geneva. The Science and Technology Facilities Council (STFC), has extended the project for another three years which ensures that the expertise built up in the UK will be there for the start of the LHC later this year and for the crucial first years of data taking. The data crunching and storage capabilities of the Grid are essential to the LHC's science mission of exploring the fundamental particles and forces of nature.

GridPP
©Unknown
Cluster and racks at Queen Mary, University of London

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Graphene Gazing Gives Glimpse of Foundations of Universe

Researchers at The University of Manchester have used graphene to measure an important and mysterious fundamental constant - and glimpse the foundations of the universe.

Graphene
©MatterNews
Magnified image of research samples with small holes covered by graphene. One can see light passing through them by the naked eye.

Document

Researchers find gene defect that boosts glucose

LONDON - An international research team has pinpointed a genetic mutation that can raise a healthy person's blood sugar to harmful levels, putting them at higher risk of serious problems like heart disease.

The defect could cause an increase of around 5 percent that can prove dangerous even for people without diabetes, the researchers reported in the journal Science said on Thursday.

Too much glucose in the blood can damage the eyes, kidneys and nerves, and also lead to heart disease, stroke and limb amputations. It is also a sign of diabetes, though the findings did not link the gene directly to the disease.

Star

Astronomers Discover New Type of Pulsating White Dwarf Star

University of Texas at Austin astronomers Michael H. Montgomery and Kurtis A. Williams, along with graduate student Steven DeGennaro, have predicted and confirmed the existence of a new type of variable star, with the help of the 2.1-meter Otto Struve Telescope at McDonald Observatory. The discovery is announced in today's issue of Astrophysical Journal Letters.

This research was funded by the National Science Foundation and the Delaware Asteroseismic Research Center.

Called a "pulsating carbon white dwarf," this is the first new class of variable white dwarf star discovered in more than 25 years. Because the overwhelming majority of stars in the universe--including the sun--will end their lives as white dwarfs, studying the pulsations (i.e., variations in light output) of these newly discovered examples gives astronomers a window on an important end point in the lives of most stars.

Image
©NSF
Changes in light output over time of the first-discovered pulsating carbon white dwarf star.