Scientists have developed three
simple and inexpensive additives to stabilize vaccines at room temperature for
a long time, an advance that will allow them to be shipped to remote areas in
developing countries. Researchers from Supramolecular Nanomaterials and
Interfaces Laboratory (SUNMIL) in Switzerland were able to achieve this by
using minute quantities of nanoparticles, polyethylene glycol, or higher
amounts of sucrose. The study addressed viral vector vaccines, the most common
type of vaccine, which normally only last a few days at room temperature. At that
point, the viral components of the vaccines lose their structural integrity. The
researchers applied their methods to vaccines that are currently in
development. They were able to stabilize a vaccine against Chikungunya for 10
days, and then successfully inoculated mice with it.
Sunday, 4 December 2016
Now, Shout In 3 Languages With Japanese Megaphone
Japan’s obsession with keeping
order, and its tech prowess, has reached its natural conclusion with an
intelligent megaphone that can issue commands in Chinese, English and Korean.
Panasonic Corp. recently unveiled the device – essentially a smartphone paired
with a handheld loudspeaker – betting that police, event organizers and
transport staff seeking to control crowds will be eager to get their hands on
something that lets them bark orders to a disparate group of people at once. While
the gadget might fall into the category of another Japanese invention in search
of a problem – a net gun debuted in 2002 to control soccer fans – there’s a
decent chance it might succeed. Tourism is climbing in Japan. More than 20
million people have visited this year, up 23% from a year earlier, according to
the Japan National Tourism Organisation. The megaphone is able to match spoken
Japanese to 300 preset expressions in English, Korean and Chinese with a press
of a button. It goes on sale on December 20. A prototype on display at a
showroom is already quite capable: it can tell you to get off the grass in
three languages. Still, some things get lost in translation. A warning not to
use drones ended up saying “the thief shocking is not permitted here”,
(mistaking drone for the Japanese word for burglar, or dorobo), Panasonic says
it will iron out the kinks.
Japan To Test 'Fishing Mesh' To Catch Space Junk
Space isn’t so empty these days. Earth’s
orbit is cluttered with more than half a million bits of debris, mostly rocket
and satellite remnants that can wreck anything in their flight path. A 106-year
old Japanese fishing net maker may have a solution. Nitto Seimo Co. is working
with Japan’s space agency to develop a mesh material to tether and drag bussize
pieces of space junk into the atmosphere for incineration. Scientists will get their
first indication of whether the metallic line will work when it’s tested in
orbit next month, said project chief Koichi Inoue, an associate principal
researcher at the Japan Aerospace Exploration Agency. The experiment is part of
an international cleanup effort planning to safeguard astronauts and about $900
billion worth of space stations, satellites and other infrastructure relied on
for telecommunications, weather forecasting, Earth-monitoring and navigation. With
debris traveling at up to 17,500 miles an hour (approx. 28,163kmph), the impact
of even a marble-sixe projectile can cause catastrophic damage as portrayed in
the Academy Award winning movie ‘Gravity’. “We need to take action of this
massive amount of debris,” Inoue said at the JAXA campus in Tsukuba, north of Tokyo.
“People haven’t been injured by the debris yet, but satellites have. We have to
act.” Space faring nations around the world are pursuing different strategies
for harpooning, sweeping, lassoing and dragging debris and redundant gear of
varying sexes into the atmosphere for burning or into a so-called graveyard
orbit, where they can’t collide with operational equipment. NASA’s Hubble
Telescope has a 1cm hole in one of its dish antennas, and solar panels have
been cracked and chipped by tiny debris, according to its website. “There’s a
significant value to the industry of mitigating that risk,” said Ben Greene,
chief executive officer of Sydney-based Electro Optic Systems Holdings Ltd,
which is developing land-based laser technology to track and alter the course
of space debris smaller than a flat screen TV. Nitto Seimo was asked by the space
agency about a decade ago to develop a metal mesh line, said Katsuya Suzuki, a
subsection chief who previously oversaw the project. JAXA wanted mesh, instead
of single cable, because it would be harder to break. “it was extremely
difficult,” said Suzuki. “At first, we could only make 20 or 30 cm. It took us
until about 2010 until we could finally make several hundred metres.” The aluminum-containing
line is designed to harness Earth’s electromagnetic forces to propel tethered
objects out of orbit and into the atmosphere for destruction. Nitto Seimo may
build a line as long as 10km if next month’s experiment using a 700-meter piece
is successful, Suzuki said.
This Gene Limits Desire For Alcohol
Researchers have identified a gene
variant that suppresses the desire to drink alcohol, an advance that could lead
to development of drugs to regulate liquor consumption. The findings are based
on the largest genome wide association meta analysis and replication study to
date, mapping and comparing the genetic of over 105,000 light and heavy social
drinkers, researchers said. The study identified a variation in the beta-Klotho
gene linked to the regulation of social alcohol consumption. The less frequent
variant – seen in approximately 40% of the people in this study – is associated
with a decreased desire to drink alcohol. Excessive alcohol consumption is a
major public health problem worldwide, causing more than 3 million deaths per
year. Researchers worked on beta-Klotho and the liver hormone fibroblast growth
factor 21 (FGF21) that binds to the beta-Klotho-FGF21 receptor complex. They conducted
experiments in mice to better understand the role of beta-Klotho in alcohol
drinking behavior. The beta-Klotho gene directs the production of the beta-Klotho
protein that forms part of a receptor complex in the brain. The study could
lead to development of drugs to regulate alcohol consumption – possibly even in
those with drinking problems, researchers said. A shift from heavy to moderate social
drinking could have major public health benefits, such as reduced
cardiovascular disease risk. The study compared the genetics of light and heavy
social drinkers of European ancestry participating in nearly four dozen other
large population studies worldwide. In addition to providing samples for
genetic analysis, the participants answered questionnaires on their weekly
drinking habits. Heavy drinking was defined as more than 21 drinks per week for
women. Light drinking was considered to be 14 drinks or less per week for men
and seven drinks or less per week for women.
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