Scientists
have created a security protocol to protect smart cars – equipped with GPS, Bluetooth
and internet connections – from being hacked. A car can be fully controlled by
the hackers if it is not protected. Researchers also built an experimental
environment that simulates communication system in a smart car, which allow the
security protocol to be tested through simulations. The research focused on
protection of the Controller Area Network (CAN), an internal communication
system in vehicles. They are proposing to add a layer of security, so if an unauthorized
person accesses it they still would not be able to control your vehicle. The security
protocol protects CAN in two ways. Firstly, it authenticates message sent
through the network by creating an authentication code. This code allows nodes
on the network to differentiate between a valid message and an attacker’s
message. The second feature protects against replay attacks, when a hacker attempts
to breach the network by repeatedly sending messages. The protocol uses a times
tamp to calculate when the network last received message.
Sunday, 11 September 2016
Better And Safer Painkiller than Morphine Soon
Scientists
unveiled a synthetic drug on 18 August that appears to neutralize pain as
effectively as morphine but without side effects that make opioids so dangerous
and addictive. The big data methods used by the researchers also open up a
promising avenue in drug innovation. In experiments with mice, the new compound
– identified after screening “trillions” of candidates – activated a known
molecular pathway in the brain that triggers pain suppression. But unlike
morphine and prescription drugs such as oxycodone or oxycontin, it did not
switch on a second pathway that can slow or block normal breathing.
Respiratory
suppression caused by opioids results in some 30,000 deaths every year in the
United States alone, where opioid use and abuse has taken on epidemic
proportions. Nor did the new drug – dubbed PZM21 – produce addiction in the lab
mice, which get hooked on morphine and pharmaceutical painkillers as easily as
humans. In experiments, the rodents showed no preference between a cubicle in
which they had been administered PZM21 or one in which they received a neutral
saline solution. PZM21, the researchers summed up, offers “long-lasting
analgesia coupled to apparent elimination of respiratory depression.” A third
advantage of the new compound is that it does not cause constipation.
NASA Lauched First Asteroid Sample Return Mission
NASA is
set to launch its first mission to return pristine samples of an asteroid to
Earth, which will study how planets formed and how life began. The finding may
also improve our understanding of asteroids that could impact Earth. The Origins,
Spectral Interpretation, Resource Identification, Security-Regolith Explorer
(OSIRIS-Rex) spacecraft will travel to the near Earth asteroid Bennu and bring
a sample back to Earth for intensive study. Launch was scheduled for September
8 from Cape Canaveral Air Force Station in Florida. The 2,110-Kilogramme
fully-fueled spacecraft will launch aboard and Atlas V
411
rocket during a 34-day launch period that begins September 8, and reach Bennu
in 2018. After a careful survey of Bennu to characterize the asteroid and
locate the most promising sample sited, OSIRIS-Rex will collect between 60 to
2,000 grams of surface material with its robotic arm and return the sample to
Earth via a detachable capsule in 2023
Soon, Your Mobile Could Talk To Your Contact Lenses
Scientists,
including some of Indian origin, have developed a new method of communication
that may allow power constrained devices such as brain implants, contact lenses
and credit cards to ‘talk’ to smart phones and watches. The “inter-scatter
communication” works by converting Bluetooth signals in Wi-Fi transmissions
over the air. Using only reflections, an inter-scatter device such as a smart
contact lens converts Bluetooth signals from a smartwatch, for example, into
Wi-Fi transmissions that can be picked up by a smartphone. Wireless
connectivity for implanted devices can transform how we manage chronic diseases.
For example, a contact lens could monitor a diabetic blood sugar level in tears
and send notifications to the phone when the blood sugar level goes down. Due to
their size and location within the body, these smart contact lenses are too
constrained by power demands to send data using conventional wireless
transmissions.
The team has demonstrated for the
first time that these types of power limited devices can “talk” to others using
standard Wi-Fi communication. The system relies solely on mobile devices
commonly found with users to generate Wi-Fi signals using 10,000 times less
energy than conventional methods. The team process relies on a communication
technique called backscatter, which allows devices to exchange information
simply by reflection existing signals. Because the new technique enables
inter-technology communication, the team calls it “inter-scattering”. Inter-scatter
communication uses the Bluetooth, Wi-Fi or ZigBee radios embedded in common
mobile devices like smartphones, watches, laptops, tablets and headsets, to
serve as both source and receivers for these reflected signals.
Saturday, 10 September 2016
Now, Your Body Odour Can Fatally Trap Mosquitoes
A new
type of mosquito trap running on solar electricity and using human odour as bait
has cut the insect population by 70% on a malaria-ridden island in Kenya. The three
year study, conducted by scientists from Netherlands, along with Kenyan and Swiss
scientists, also found 30% fewer malaria victims in houses that had traps than
in those that did not. Although the traps appeared quite effective at lowering
mosquito populations, they had some significant drawbacks. Because they need
power form solar panels, they are relatively expensive. Still, the panes
appealed to residents who could also use them to power a light bulb or charge a
cell phone.
Also the
traps – which resemble lampshades and hang just outside the house – lured in
Anopheles funestus mosquitoes, the most important malaria vector on Rusinga
Island in Lake Victoria, where the test was conducted. But they did not attract
Anopheles gambiae or Anopheles arabiensis, which are much more important
malaria vectors in most of Africa, where more than 400,000 children die of the
disease each year.
Also, the traps needed regular
rebaiting with a blend of five chemical constituents of human odour along with
a chemical that mimicks carbon dioxide plume created by breath. Mosquito traps
releasing carbon dioxide are available in the US, but they can cost hundreds of
dollars; can sometimes require propane tanks, electricity or dry ice; and may
not be effective. The Centers for Disease Control and Prevention recently
tested simple bucket traps that caught egg-laying females by using water and
hay as bait and sticky paper to kill.
Discovered Closest Ever 'Second Earth'
Scientists
might have found the closest ever candidate for another Earth that could
support life. The new found planet orbits around a now well-investigated star
in Proxima Centauri, near us, according to reports. It is similar to Earth and
could support life, it is claimed. The researchers that found the planet are
expected to show it off at the end of this month. But until then they are
saying nothing about the revolutionary find. One report said the planet will be
the closest ‘second Earth’ ever found. The Proxima Centauri system, which
includes our solar system.
The still nameless planet is
believed to be Earth-like and orbits at a distance to Proxima Centauri that
could allow it to have liquid water on its surface – an important requirement
for the emergence of life. The report didn’t give any mode details on the
planet itself. NASA revealed a second Earth to much fanfare last year. That planet
was called Kepler 452b, and is just 60% larger than Earth and in many other
ways is almost identical to our planet.
But since it is so far away – 1400 light
years – the chance of ever getting there or learning much more about it is
limited. The new discovery is far, far nearer, at just 4.24 light years from
us. But that still makes it too far away to actually visit with today’s space
technology. But it means that we will be able to learn far more about the
planet than we could about further away ones.
New Osteoporosis Drug Could Help Prevent Fractures.
A large
clinical trial of new osteoporosis drug found that it stimulates bone growth and
prevents fractures at least as well as the only other such drug on market. The new
drug, expected to win approval from federal regulators, would offer another
much-needed treatment for people who have a disease that weakens bones and
often leads to years of pain, disability and early death. Experts agree that
new drug is urgently needed for this debilitation disease. People with
osteoporosis have bones that are fragile and break easily. Bone is naturally lost
with age. But osteoporosis is an extreme, abnormal bone loss that can cause
devastating fractures, particularly of the spine and hip.The new drug looks
promising, according to the clinical trial conducted by Radius. The trial
compared the new drug, abaloparatide, with a placebo and with the only other
bone building drug on the market. The new drug is a derivative of hormone that stimulate bone growth and it fill holes in osteoporotic bone
appeared to fill faster.
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