Thursday, October 11, 2007

After lots of speculations and speculative London betting on the outcome it has been announced that British author Doris Lessing (“The Golden Notebook”, 1962) is the winner of the 2007 Nobel Prize for Literature.

At the International Book Fair at Frankfurt, Germany, which is currently underway, this decision has met with general approval, as a decision awarding the literary work of an author well established beyond her native country, rather than a political statement. The reason given for giving the prestigious award to Doris Lessing was to honour “that epicist of the female experience, who with skepticism, fire and visionary power has subjected a divided civilisation to scrutiny”.

Lessing herself, who will turn 88 on October 22, has been named a potential candidate over the last 30 years – so long in fact, that she herself once exclaimed: “I’ll never get it”. Finally, on December 10, 2007, the Nobel Prize including 10 million Swedish Kronor (€1.1 million) will be awarded to her in Stockholm, Sweden.

Thursday, October 19, 2017

On Monday, digital security researchers Mathy Vanhoef and Frank Piessens of Belgium’s KU Leuven university publicly disclosed a security vulnerability in the WPA2 Wi-Fi (wireless local-area networking) protocol, which they called KRACK (for Key Reinstallation Attack). Their study claimed KRACK affects every modern device using Wi-Fi; it can be fixed by a software update, researchers said.

Vanhoef wrote, “Attackers can use this novel attack technique to read information that was previously assumed to be safely encrypted. This can be abused to steal sensitive information such as credit card numbers, passwords, chat messages, emails, photos and so on.” Vanhoef notified vendors about the flaw in July, including UNIX-like operating system OpenBSD. “If your device supports Wi-Fi, it is most likely affected. […] In general, any data or information that the victim transmits can be decrypted”, he wrote.

The study papers, which were submitted for review on May 19, were kept in confidence allowing companies to fix the security flaw. The United States-based Computer Emergency Response Team (CERT) informed vendors on August 28. The Wi-Fi Alliance said it “could be resolved through a straightforward software update.” OpenBSD released their software patch on August 30.

Exploring the flaw which affected every device the researchers had tested, National Cyber Security Centre of the UK said “the attacker would have to be physically close to the target”. But due to this flaw, an attacker can send malware or ransomware on the websites, Vanhoef claimed.

Linux-based operating systems including Android v6.0 and higher are especially affected by this flaw, while Windows and iOS are not as vulnerable as Android by this flaw as they do not fully implement WPA2.

Microsoft reportedly has released security patches for Windows 7, 8, 8.1 and 10. Google said Android operating systems would receive the updates in the software update scheduled to be made available on November 6. Apple has implemented the patch in the beta versions of their operating system iOS, macOS, tvOS and watchOS, however it is yet to roll out patches for stable operating systems.

WPA2 protocol has been used for more than a decade, and has been compulsory for Wi-Fi since 2006. KRACK would also affect various home appliances which can be controlled over Wi-Fi, within the so-called “Internet of things”. Andrew Martin from Oxford University said, “We can be sure a lot of these devices won’t be patched[…] Whether that matters for this attack or only for some future attack is yet to be seen.”

The study and its findings are scheduled for presentation at the ACM (Association for Computing Machinery) Computer and Communications Security conference on November 1.

Wednesday, September 19, 2007

NASA is beginning the final preparations for next Wednesday’s launch of the Dawn probe, aboard a Delta II rocket. The Dawn probe, costing over US$250 million, will visit the dwarf planet Ceres and the asteroid Vesta. The launch was originally planned for mid-June, however due to a damaged crate, shipping delays, and a damaged solar panel, NASA chose to delay it until now. Last week the spacecraft was delivered to the launch pad, and engineers performed tests to ensure that it is ready for launch. Today, the payload fairings were installed, and the probe is ready for its launch next week onto its 5 billion kilometer (3.2 billion mile) mission.

As the Delta II launches, three stages of rockets will propel the probe towards its first target. With the help of ion thrusters, it will reach Mars in mid-2009. Using Mars’ gravity, the probe will speed up and proceed towards the first asteroid, Vesta, in late 2011. After orbiting for seven months, it will leave Vesta in mid-2012, and arrive at Ceres in 2015. After making scans of Ceres, it will enter an orbit around Ceres that will ensure that it does not impact the asteroid for half a century. This is required due to the United Nations’ “Outer Space Treaty”, which states that “harmful contamination” of these asteroids must be avoided.

The targets of this mission, Ceres and Vesta, couldn’t be less alike. Ceres (diameter 975 km, 600 miles) is larger than Vesta (578 km, 350 miles). This makes Ceres approximately the size of Texas. NASA believes Ceres could contain water beneath its outer crust because, like Earth, its inner layers are heavier than the outer layers, and Ceres’ outer layer is lighter than water. Vesta, on the other hand, is the size of Arizona, and has a surface of volcanic rock, which astronomers believe came from its hot inner layers. Vesta also has a large crater – almost 500 km (300 miles) across – on its southern pole. The collision that caused this likely blasted enough rock into space to fill a container 160 by 160 by 80 km (100 by 100 by 50 miles).

The probe will make several observations of these asteroids: it will compare the makeup, shape, size, and densities, analyze craters, and determine mass, gravity, rotation. To determine the makeup, the probe carries a mapping spectrometer, and tools to map emissions of neutrons and gamma rays. Using this information, NASA can compare the formation of these bodies to learn more about our solar system, for example, to test a theory which states that a number of stony meteorites may be debris from Vesta.

There’s one more piece of equipment aboard the probe: A small silicon chip containing the names of 350,000 people who submitted their names to the “Send Your Name to the Asteroid Belt” campaign. After next week’s launch, the spacecraft will deploy its solar panels and undergo two months of testing before it begins the cruise to Mars.

Saturday, March 5, 2005Simply massaging low birth weight babies with sunflower seed oil can protect them from potentially fatal infections.

Infections and complications from preterm birth cause more than half of all neonatal deaths, and very low birth weight babies are particularly vulnerable.

Preterm babies have immature skin that lacks a protective film called vernix that has antimicrobial properties.

In some countries, such as India, newborns are routinely massaged with mustard oil.

But mustard oil, says Gary Darmstadt of John Hopkins University in Baltimore, Maryland, can delay recovery of the skin barrier and have a toxic effect on skin.

Seeking an alternative low-cost product, Darmstadt and colleagues experimented with sunflower oil and an ointment called Aquaphor that comprises petrolatum, mineral oil, mineral wax and lanolin.

The researchers tested the treatments on 497 newborns (72 hours old or less) and preterm babies (less than 33 weeks gestation) between 1998 and 2003 in Bangladesh.

They applied the treatments to the entire body besides the scalp and face three times daily for the first 14 days and then twice daily until discharge.

Babies treated with sunflower oil were found 41% less likely to develop infections than controls.

“Evidence is emerging that the skin is much more important as a barrier to infection than previously recognized, particularly in preterm infants whose skin is underdeveloped,” says Darmstadt. “The good news is that treatment is available to strengthen the function of the skin as a barrier in these vulnerable newborns.”

Sunday, May 22, 2011

Pope Benedict XVI spoke with astronauts aboard the International Space Station yesterday, marking the first time a pope has conversed with astronauts in orbit.

Organized by the European Space Agency (ESA), the call originated from the Vatican Library at 7:11 am Eastern time. German ESA astronaut Thomas Reiter, president of the Italian Space Agency Enrico Saggese, and General Giuseppe Bernardis of the Italian Air Force were also in the room at the Vatican. Aboard the spacecraft were Italian, U.S., and Russian crew members of the Endeavour STS-134 mission and Expedition 27.

Endeavour commander and U.S. astronaut Mark Kelly greeted His Holiness aboard the spacecraft. The Pope wished Kelly’s wife, Arizona Rep. Gabrielle Giffords, well as she recovers from an assassination attempt that took place in January. Doctors inserted a hard plastic implant, or a bone flap, into Giffords’s skull last Wednesday. The Pope also asked of the astronauts’ impressions of the planet from space.

“We fly over most of the world and we don’t see borders, but at the same time we realize that people fight with each other and there is a lot of violence in this world,” Kelly said. The Pope sent his condolences to Italian astronaut Paolo Nespoli, whose mother died earlier this month while he was in space.

Friday, February 10, 2006

The Council of Australian Governments (COAG) will meet in Canberra today for its first meeting of 2006. Members of COAG are the Prime Minister, State Premiers, Australian Capital and Northern Territory Chief Ministers, and the President of the Australian Local Government Association. COAG is chaired by the Prime Minister.

On the agenda is a wide range of issues such as health, economic reform, regulation, and education.

The state leaders (all of whom are members of the Australian Labor Party), met last night to develop a strategy for dealing with John Howard, Australia’s Prime Minister.

Friday, July 23, 2021

With five active cases of the Delta variant of COVID-19, South Australia begun a one-week lockdown on Monday. Announcing the lockdown, state Premier Steven Marshall declared “we have no alternative but to impose some fairly heavy and immediate restrictions”.

The first case out of South Australia’s active cases was presented to Modbury Hospital on Sunday night, having returned from Argentina earlier this month. The fifth, which Premier Marshall noted as “far more worrying”, visited The Greek on Halifax restaurant at the same time as someone who was later confirmed to be carrying the virus. Chief Public Health Officer for the state Nicola Spurrier said “if anyone has been at The Greek on Halifax they need to get into quarantine and get tested”.

In accordance with new regulations, there are only five reasons for South Australians to leave home: essential work, shopping for essential goods such as food, exercise, but only with people from the same household and within 2.5 kilometers (2 mi) of home, medical reasons (which includes testing and vaccination against the coronavirus, but excludes elective and cosmetic surgery), and caregiving.

Schools have closed for all but children of essential workers, with online learning having begun on Thursday. Face masks are also be mandated for those who leave home. ABC News reported that “support for businesses is expected to be announced…”, with all non-essential retail required to close under the new regulations.