New discovery hints ancient Egypt and Israel had ties during Early Bronze Age

Jerusalem, Sept 2 (ANI): The discovery of a rare, four-centimeter-long stone fragment at the point where the Jordan River exits Lake Kinneret, has suggested a link between ancient Egypt and Israel around 3,000 BCE during the Early Bronze Age.

According to a report in the Jerusalem Post, Tel Aviv University (TAU) and University College London archeologists found the fragment.

The piece, part of a carved stone plaque bearing archaic Egyptian signs, was the highlight of the second season of excavations at Tel Bet Yerah (Khirbet el-Kerak). he site lies along an ancient highway that connected Egypt to the wider world of the ancient Near East.

The dig, carried out within the Beit Yerah National Park, was completed there last week by a joint team headed by TAU’s Raphael Greenberg and David Wengrow from England.

Earlier discoveries, both in Egypt and at Bet Yerah, have indicated that there was direct interaction between the site – then one of the largest in the Jordan Valley – and the Egyptian royal court.

The new discovery suggests that these contacts were of far greater local significance than had been suspected.

The archeologists noted that the fragment, which depicts an arm and hand grasping a scepter and an early form of the ankh sign, was the first artifact of its type ever found in an archaeological site outside Egypt.

It has been attributed to the period of Egypt’s First Dynasty, at around 3000 BCE.

Finds of this nature are rare even within Egypt itself, and the signs are executed to a high quality, as good as those on royal cosmetic palettes and other monuments dating to the origins of Egyptian kingship.

This year’s excavations also provided new insights into contacts between the early town and the distant north, when large quantities of “Khirbet Kerak Ware” (a distinctive kind of red/black burnished pottery first found at Tel Bet Yerah) were found in association with portable ceramic hearths, some of them bearing decorations in the form of human features.

“The hearths are very similar to objects found in Anatolia and the southern Caucasus, and most were found in open spaces where there was other evidence for fire-related activities,” noted Greenberg.

“The people using this pottery appear to have been migrants or descendants of migrants, and its distribution on the site, as well as the study of other cultural aspects, such as what they ate and the way they organized their households, could tell us about their interaction with local people and their adaptation to new surroundings,” he added. (ANI)

Dead Sea shrinking by 1 meter every year

Washington, August 27 (ANI): Reports indicate that the Dead Sea is still shrinking fast, with water levels continuing to drop at the rate of about 1 meter per year.

Praised far and wide for the reputed healing powers of its minerals and waters, the Dead Sea has been luring visitors for thousands of years.

But these days, tourists see a very different lake from the one that others would have witnessed a few decades ago.

According to a report in National Geographic News, the sea sits in the lowest place on earth, and for years, the water level was 1280 feet below sea level. However, in the last 40 years, it’s dropped more than 80 feet.

Today, the Dead Sea continues to drop at the rate of about 1 meter per year.

This dramatic shortage is particularly evident at Israel’s Ein Gedi Spa, on the southern shores of the Dead Sea.

“The beach was here, and now (it’s) far away. You can see it’s more than one kilometre from here. In 30 years, the beach (will have) disappeared,” said Alon Shachal, Ein Gedi Spa Manager.

The need to change the status quo and find a solution to the Dead Sea’s alarming shrinking has been a concern for years for ‘Friends of the Earth Middle East’, a non-governmental organization that brings together Palestinian, Israeli and Jordanian environmentalists.

“After the ’60′s, we started to see a dramatic decrease in the surface area of the Dead Sea. And according to the different studies, in 50 years from now, at the same rate, which is 1 meter per year of drop in the surface level of the Dead Sea, means that this sea will not be the same. It will be more of a very small lake; not the same area that we have today,” said Iyad Aburdeieneh, Project Coordinator, Friends of the Earth Middle East Bethlehem.

According to Gidon Bromberg, from Friends of the Earth Middle East Tel Aviv, “The Dead Sea has had its taps closed from both ends. From the North, in fact here in front of us is where the Jordan River should be flowing to the Dead Sea, but the Jordan River basically doesn’t flow anymore.”

“Ninety-five per cent of its waters have been diverted by Israel, by Syria, by Jordan, so that what’s left in the Jordan River – a river holy to half of humanity – is little more than agriculture runoff, fish farm waste and, mostly, untreated sewage waters,” he said. (ANI)

Novel device to wash away bedsores, chronic ulcers

Washington, Aug 27 (ANI): Researchers at Tel Aviv University have developed a unique device, called Dermastream, which could heal bedsores and chronic ulcers in bedridden elderly and infirm.

When ill, such people are prone to painful and dangerous pressure ulcers, and diabetics are susceptible to wounds caused by a lack of blood flow to the extremities.

“The problem is chronic,” said Prof. Amihay Freeman of TAU’s Department of Molecular Microbiology and Biotechnology.

And thus, he developed Dermastream, that uses a solution to whisk away dead tissue, bathing the wound while keeping dangerous bacteria away.

The device provides an enzyme-based solution that flows continuously over the wound, offering an alternative treatment to combat a problem for which current treatments are costly and labour-intensive.

Freeman said that Dermastream has already passed clinical trials in Israeli hospitals and may be available in the U.S. within the next year.

Dermastream employs a special solution developed at Freeman’s TAU laboratory, thus offering a new approach to chronic wound care- a specialty known as “continuous streaming therapy.”

“Our basic idea is simple. We treat the wound by streaming a solution in a continuous manner. Traditional methods require wound scraping to remove necrotic tissue. That is expensive, painful and extremely uncomfortable to the patient.

And while active ingredients applied with bandages on a wound may work for a couple of hours, after that the wound fights back. The bacteria build up again, creating a tedious and long battle,” said Freeman.

Dermastream “flows” under a plastic cover that seals the wound, providing negative pressure that promotes faster healing.

The active biological ingredient, delivered in a hypertonic medium, works to heal hard-to-shake chronic wounds.

Freeman said that while traditional bandaging methods may take months to become fully effective, Dermastream can heal chronic wounds in weeks.

Dermastream is intended for use in hospitals, nursing homes, outpatient clinics and homecare.

Freeman has founded a company that is currently collaborating with a Veterans Association hospital in Tucson, AZ, to bring the technology to the U.S. market.

“My solution helps doctors regain control of the chronic wound, making management more efficient, and vastly improving the quality of their patients’ lives,” concluded Freeman. (ANI)

MRI methods can show bone marrow stem cells’ viability as brain-repairing therapy

Washington, August 20 (ANI): Researchers at Tel Aviv University have offered new hope for people with incurable neurodegenerative diseases like Huntington’s, Alzheimer’s, and Parkinson’s by showing that the viability of stem cells created from a patient’s own bone marrow can be determined using MRI tracking methods.

Dr. Yoram Cohen, of TAU’s School of Chemistry, claims that he has been able to track the progress of the innovative cells called mesenchymal stem cells within the brain.

He says that initial studies indicate that it is possible to identify unhealthy or damaged tissues, migrate to them, and potentially repair or halt cell degeneration.

“By monitoring the motion of these cells, you get information about how viable they are, and how they can benefit the tissue. We have been able to prove that these stem cells travel within the brain, and only travel where they are needed. They read the chemical signalling of the tissue, which indicate areas of stress. And then they go and try to repair the situation,” he says.

During the study, Dr. Cohen and his colleagues tracked the activity of the live cells within the brain using the in-vivo MRI at the Strauss Centre for Computational Neuro-Imaging, with a view to establishing their viability as a therapy for neurodegenerative disease.

The researchers used magnetic iron oxide nanoparticles to label the stem cells, so that they could be identified as clear black dots on an MRI picture after being injected into the brain.

The stem cells were then injected into the brain of an animal that had an experimental model of Huntington’s disease, which suffered from a similar neuropathology as the one seen in human patients.

On MRI, it was possible to watch the stem cells migrating towards the diseased area of the brain.

“Cells that go toward a certain position that needs to be rescued are the best indirect proof that they are live and viable. If they can migrate towards the target, they are alive and can read chemical signalling,” says Dr. Cohen.

He believes that the benefits of using differentiated mesenchymal cells (MSC) may be numerous.

“Bone marrow-derived MSCs bypass ethical and production complications, and in the long run, the cells are less likely to be rejected because they come from the patients themselves. This means you don’t need immunosuppressant therapy,” he says.

Dr. Cohen has revealed that the next step in his research will be to develop a real-life therapy for those suffering from neurodegenerative diseases.

A researcher article on his study has been published in the journal Stem Cells. (ANI)

Novel implant coating technique created

Washington, June 30 (ANI): An electrochemical process for coating metal implants which vastly improves their functionality, longevity and integration into the body has been developed by a Tel Aviv University researcher.

Brainchild of Prof. Noam Eliaz of the TAU School of Mechanical Engineering, the new process could vastly improve the lives of people who have undergone complicated total joint replacement surgeries so they can better walk, run and ultimately avoid rejection of the implant by their bodies.

“The surface chemistry, structure and morphology of our new coatings resemble biological material,” explains Prof. Eliaz.

“We’ve been able to enhance the integration of the coating with the mineralized tissue of the body, allowing more peoples’ bodies to accept implants,” the expert added.

His new coating resulted in a 33 percent decrease in the level of materials failure, or delamination, in these implants.

Prof. Eliaz presented his findings to the 215th meeting of the Electrochemical Society in San Francisco in May 2009. (ANI)

Soon, a breath mint made from coffee

Washington, June 25 (ANI): A coffee extract can inhibit the growth of bacteria that leads to bad breath, according to a new research from Tel Aviv University.

New laboratory tests have shown that the extract prevents malodorous bacteria from making their presence felt – or smelt.

“Everybody thinks that coffee causes bad breath and it’s often true, because coffee, which has a dehydrating effect in the mouth, becomes potent when mixed with milk, and can ferment into smelly substances,” says breath specialist Prof. Mel Rosenberg of TAU’s Sackler Faculty of Medicine.

But that is not always true. “Contrary to our expectations, we found some components in coffee that actually inhibit bad breath,” Rosenberg added.

In the laboratory, the researchers monitored the bacterial odour production of coffee in saliva.

In the study, three different brands of coffee were tested: the Israeli brand Elite coffee, Landwer Turkish coffee, and Taster’s Choice.

Rosenberg expected to demonstrate the malodour-causing effect of coffee in an in vitro saliva assay developed by Dr. Sarit Levitan in his laboratory. To his surprise, the extracts had the opposite effect.

“The lesson we learned here is one of humility. We expected coffee would cause bad breath, but there is something inside this magic brew that has the opposite effect,” Rosenberg.

Rosenberg would love to isolate the bacterial-inhibiting molecule in order to reap the biggest anti-bacterial benefits from coffee.

According to researchers, the new study could be the foundation for an entirely new class of mouthwash, breath mints and gum.

Purified coffee extract can be added to a breath mint to stop bacteria from forming, stopping bad breath at its source, instead of masking the smell with a mint flavour, the authors said.

The findings were presented to members of the International Society for Breath Odour Research in Germany. (ANI)

Coming soon, a joystick to treat “lazy eyes” in kids

Washington, June 23 (ANI): Children suffering from lazy eye syndrome may soon get rid of the ugly eye patch, courtesy a new computer therapy developed by researchers from Tel Aviv University.

Traditional treatment for amblyopia also known as lazy eye syndrome requires the use of an eye patch, often for months at a time, before the eye is corrected.

This, according to the researchers, can lead to social stigma during a formative part of childhood; moreover it’s not 100 pct effective.

Dr. Uri Polat, Tel Aviv University’s eye and brain specialist has developed a computer therapy that could spare kids from the ugly eye patch, letting them enjoy themselves during therapy.

And, this treatment, currently available for adults only, corrects the activity of the neurons in the brain, the main operator of eye function.

The study showed that twenty hours in front of Dr. Polat’s computer treatment had the same effect as about 500 hours of wearing an eye patch.

In new treatment, special and random objects appear, keeping the patient constantly alert and expecting the unexpected.

However, the researchers have now collaborated with gaming specialists from Rochester University for developing a version of the therapy for kids.

“You see these poor kids in kindergarten wearing the patch. Everyone hates it, especially the parents who know what it’s doing to their kid’s self-esteem,” said Dr. Polat.

“As far as I know this is really a one-of-a-kind, non-invasive and effective way to treat lazy eye, without the use of an embarrassing eye patch.

“This is probably the first treatment that attempts to correct lazy eyes in adults, something that doctors had previously given up on. Doctors don’t suggest intervention after the age of nine, because it usually doesn’t work,” he Polat added.

The review was published recently in Vision Research. (ANI)

South Korea Incheon is World’s Best Airport – Photo Shoot

South Korea Incheon is World's Best Airport - Photo Shoot

South Korea’s Incheon International Airport was voted the best in the world for 2009 in an annual survey dominated by Asian airports. The survey, by British-based consultancy Skytrax, covered more than 190 airports and is based on the results from 8.6 million passenger questionnaires completed from 2008 to 2009. ‘Incheon is an airport that has been in the global top 5 ranking for the World Airport Awards during the past 5-6 years, and it is a great achievement for them to secure this premier mark of customer satisfaction,’Skytrax CEO Edward Plaisted said. (Text courtesy: Reuters)

South Korea Incheon is World's Best Airport - Photo Shoot

Incheon narrowly beat Hong Kong International Airport, last year’s number one which came in second. The Hong Kong airport is an important transit point and the gateway to China. The Hong Kong airport has infact won seven Skytrax World Airports Awards.

South Korea Incheon is World's Best Airport - Photo Shoot

Singapore’s Changi, fell to third place this year from number 2 in 2008. Skytrax said in a statement that the final margins between the top three airports were so narrow that at one stage the company thought it would have a three-way tie for first place in the “World Airport Awards’.The survey evaluates traveller experiences across 39 different airport service and products, ranging from check-in, arrivals, transfer through to departure at the gate.

South Korea Incheon is World's Best Airport - Photo Shoot

Japan’s Kansai is among the top 10. Japan’s Kansai Airport is located in the middle of Osaka Bay on an artificial island. This airport has consistently been among the top Airports in the world by Skytrax.

South Korea Incheon is World's Best Airport - Photo Shoot

Malaysia’s Kuala Lumpur airport also comes in the first 10. Malaysia’s main airport KL International Airport is situated in Sepang. It’s among the world’s busiest airports and is capable of handling around 35 million passengers annually.

South Korea Incheon is World's Best Airport - Photo Shoot

New Zealand’s Auckland airport, which was also voted the best in the Australia-Pacific region, rounded up the top 10. New Zealand’s top airport is located in the western suburb of Manukau City. Auckland airport handles 5-15 million passengers annually.

South Korea Incheon is World's Best Airport - Photo Shoot

Japan’s Centrair Nagoya airports was also among the top 10. A new entrant to the list of the best airports in the world, Centrair Nagoya airport is a first class airport that is also built on an artificial island in Ise Bay region.

South Korea Incheon is World's Best Airport - Photo Shoot

Tel Aviv was voted the Middle East’s best airport. Also known as the Ben Gurion International airport is Israel’s largest and busiest airports that handled over 11.5 million passengers last year.

South Korea Incheon is World's Best Airport - Photo Shoot

Cape Town is the best in Africa. A major gateway to tourists, South Africa’s second largest airports Cape Town International Airport is also a hub for the South African national carrier.

Israel confirms first case of swine flu

Tel Aviv- Israel Tuesday confirmed its first case of the lethal swine flu, with a 26-year-old man who recently returned from Mexico and has been in quarantine in a hospital in the coastal city of Netanya tested diagnosed as having the lethal virus. Another Israeli, who also recently returned from Mexico is in quarantine in a hospital in Kfar Saba, north-east of Tel Aviv, after displaying flu-like symptoms.

Israel’s health ministry raised its alert level to 4 on a scale of 1 to 6 in the wake of the virus.(dpa)

Introducing ‘congestion pricing’ at airports could help avoid delays

Washington, Apr 23 (ANI): London’s “congestion pricing”-the fee motorists pay to drive into certain parts of the city during peak traffic hours- could solve the problem of flight delays, says an economist at Tel Aviv University.

Dr. Itai Ater, from TAU’s Faculty of Management, is suggesting that introducing “congestion pricing” at airports could save travellers time and airlines money.

“What I propose is a policy to reduce the amount of delays in the airline industry,” said Ater.

In his opinion, airlines that want to use an airport’s runways during the busiest times of the day should pay an additional fee.

And such premium access fee to the runway could reduce airport congestion – and the inevitable delays, as well as the risks, linked with crowded skies.

His suggestions are aimed to save airlines from future catastrophes as airports, and skies, get busier.

He said: “Airport congestion is a big problem in the U.S. and around the world. The estimated annual costs of delays are $10 billion. When there are delays on take off or landing, a cascading effect is created, with lots of associated problems, risks and financial costs.”

Ater, who evaluated flight records from America’s busiest airports for his doctoral thesis at Stanford University, said that some airlines would prefer not to pay the charge and operate during non-congested periods.

As a result, overall congestion would drop.

Currently, airlines at most airports pay for runway use depending on the weight of the aircraft, except for a few such as Chicago O’Hare, where airports use pre-determined slots to determine charges and time of operation.

Ater has warned that not all airports can benefit from his plan.

“At airports where there is a monopoly or almost a monopoly by a single airline, charging a tariff during peak hours has less meaning. In these airports, like those in Atlanta, Charlotte, or Detroit, we already find fewer delays. So why intervene? Individual airlines that dominate an airport do a better job of organizing flights more intelligently and efficiently to reduce the level of delays,” he said.

He will present his advice at the National Bureau of Economic Research conference in Boston this May. (ANI)

Introducing ‘congestion pricing’ at airports could help avoid delays

Washington, Apr 23 (ANI): London’s “congestion pricing”-the fee motorists pay to drive into certain parts of the city during peak traffic hours- could solve the problem of flight delays, says an economist at Tel Aviv University.

Dr. Itai Ater, from TAU’s Faculty of Management, is suggesting that introducing “congestion pricing” at airports could save travellers time and airlines money.

“What I propose is a policy to reduce the amount of delays in the airline industry,” said Ater.

In his opinion, airlines that want to use an airport’s runways during the busiest times of the day should pay an additional fee.

And such premium access fee to the runway could reduce airport congestion – and the inevitable delays, as well as the risks, linked with crowded skies.

His suggestions are aimed to save airlines from future catastrophes as airports, and skies, get busier.

He said: “Airport congestion is a big problem in the U.S. and around the world. The estimated annual costs of delays are $10 billion. When there are delays on take off or landing, a cascading effect is created, with lots of associated problems, risks and financial costs.”

Ater, who evaluated flight records from America’s busiest airports for his doctoral thesis at Stanford University, said that some airlines would prefer not to pay the charge and operate during non-congested periods.

As a result, overall congestion would drop.

Currently, airlines at most airports pay for runway use depending on the weight of the aircraft, except for a few such as Chicago O’Hare, where airports use pre-determined slots to determine charges and time of operation.

Ater has warned that not all airports can benefit from his plan.

“At airports where there is a monopoly or almost a monopoly by a single airline, charging a tariff during peak hours has less meaning. In these airports, like those in Atlanta, Charlotte, or Detroit, we already find fewer delays. So why intervene? Individual airlines that dominate an airport do a better job of organizing flights more intelligently and efficiently to reduce the level of delays,” he said.

He will present his advice at the National Bureau of Economic Research conference in Boston this May. (ANI)

Men, not women, are the weaker sex

Washington, Apr 1 (ANI): While women are often considered the weaker sex, a Tel Aviv University study has offered scientific evidence to show that it’s the other way round.

The study has shown that male baby comes with a bigger package of associated risks than his female counterparts.

In a study of 66,000 births, Prof. Marek Glezerman, chairman of the Department of Obstetrics and Gynecology at the Sackler School of Medicine, Tel Aviv University, along with Dr. Yariv Yogev and Dr. Nir Melamed, found that while girls were at a higher risk for restricted growth in utero and for breech presentation at birth, risks associated with boy foetuses were more abundant.

“Pregnancies with a male foetus are more often complicated. They’re more likely to result in a premature rupture of the embryonic sac and suffer from premature delivery. And those male foetuses which make it to term are more likely to suffer from excessive growth in the uterus, making delivery more difficult and leading to more cesarian section deliveries,” said Glezerman.

Researchers concluded that male foetuses come with ‘a higher association of risks,’ but note that the findings should be viewed in the proper light.

Glezerman said that ‘boys are riskier to an extent’ but pregnancies involving boys should not be classified as ‘high-risk’ for that reason alone.

He said that it’s only one factor for doctors to consider when looking at the whole picture.

“But in general, boys are more vulnerable in their life in utero, and this vulnerability continues to exist throughout their lives,” said Glezerman,.

“Men are known to have a shorter lifespan, are more susceptible to infections, and have less chance of withstanding disease than women. In short, men are the weaker sex,” he added,

Glezerman noted that this new evidence has confirmed the old wives’ tale that boy foetuses are more troublesome in the womb and the delivery room. He also takes the notion one step further.

“This research not only confirms an old wives’ tale, but adds to what we know about the male gender. Males are also associated with higher risk in the neonatal period after birth, and are more likely to expose themselves to risky behaviour later in life,” Glezerman said.

The study has been presented to the Israel Society for Gender Based Medicine. (ANI)

Diabetes linked to dementia

Washington, Mar 6 (ANI): Blindness, renal failure, stroke and heart disease are potential complications of type 2 diabetes. Now, a new study has found that diabetes can be a risk factor accelerating cognitive decline and dementia too.

In the study, Dr. Tali Cukierman-Yaffe, a physician and researcher from research from Tel Aviv University’s Sackler School of Medicine, found that people with diabetes were 1.5 more likely to experience cognitive decline, and 1.6 more likely to suffer from dementia than people without diabetes.

The study suggests that higher-than-average levels of blood glucose (blood sugar) may have a role in this relationship.

“Our results send an important message to the public. We have shown conclusively that there is a relationship between diabetes and cognitive dysfunction. This should be known by diabetics and their doctors. Knowledge is the first step towards action,” said Dr. Cukierman-Yaffe.

“Intact thinking is essential for managing the disease,” Dr. Cukierman-Yaffe added

The study has shown that in people with type 2 diabetes, higher levels of haemoglobin A1C (a measure of average blood glucose) are significantly associated with poorer performance on three cognitive tasks which require memory, speed and ability to manage multiple tasks at the same time.

A higher A1C level was also associated with a lower score on a test of global cognitive function.

The results of the study suggest that lowering A1C levels could slow the accelerated rate of cognitive decline experienced by people with diabetes.

However, prospective studies and clinical trials are needed in order to prove this.

The study has been published in the journal Diabetes Care. (ANI)

Diabetes linked to dementia

Washington, Mar 6 (ANI): Blindness, renal failure, stroke and heart disease are potential complications of type 2 diabetes. Now, a new study has found that diabetes can be a risk factor accelerating cognitive decline and dementia too.

In the study, Dr. Tali Cukierman-Yaffe, a physician and researcher from research from Tel Aviv University’s Sackler School of Medicine, found that people with diabetes were 1.5 more likely to experience cognitive decline, and 1.6 more likely to suffer from dementia than people without diabetes.

The study suggests that higher-than-average levels of blood glucose (blood sugar) may have a role in this relationship.

“Our results send an important message to the public. We have shown conclusively that there is a relationship between diabetes and cognitive dysfunction. This should be known by diabetics and their doctors. Knowledge is the first step towards action,” said Dr. Cukierman-Yaffe.

“Intact thinking is essential for managing the disease,” Dr. Cukierman-Yaffe added

The study has shown that in people with type 2 diabetes, higher levels of haemoglobin A1C (a measure of average blood glucose) are significantly associated with poorer performance on three cognitive tasks which require memory, speed and ability to manage multiple tasks at the same time.

A higher A1C level was also associated with a lower score on a test of global cognitive function.

The results of the study suggest that lowering A1C levels could slow the accelerated rate of cognitive decline experienced by people with diabetes.

However, prospective studies and clinical trials are needed in order to prove this.

The study has been published in the journal Diabetes Care. (ANI)

Could mythical “sprites” be mysterious UFOs?

Washington, Feb 24 (ANI): Scientists at Tel Aviv University in Israel have discovered mysterious flashes, named “sprites”, zipping across the atmosphere, which may well provide a possible explanation for the sightings of UFOs (Unidentified Flying Objects).

In legend, sprites are trolls, elves and other spirits that dance high above our ozone layer.

But, scientists at Tel Aviv University have discovered that some very real “sprites” are zipping across the atmosphere as well, providing a possible explanation for those other legendary denizens of the skies, UFOs.

According to Professor Colin Price, head of the Geophysics and Planetary Sciences Department at Tel Aviv University, thunderstorms are the catalyst for a newly discovered natural phenomenon he calls “sprites.”

He and his colleagues are one of the leading teams in the world studying the phenomenon, and Professor Price leads the study of “winter sprites” ? those that appear only in the northern hemisphere’s winter months.

“Sprites appear above most thunderstorms, but we didn’t see them until recently. They are high in the sky and last for only a fraction of a second,” explained Professor Price.

While there is much debate over the cause or function of these mysterious flashes in the sky, they may explain some bizarre reports of UFO sightings, he added.

Sprites are described as flashes high in the atmosphere, between 35 and 80 miles from the ground, much higher than the 7 to 10 miles where regular lightning bolts usually occur.

“Lightning from the thunderstorm excites the electric field above, producing a flash of light called a sprite,” explained Prof. Price. “We now understand that only a specific type of lightning is the trigger that initiates sprites aloft,” he added.

Though sprites have existed for millions of years, they were first discovered and documented only by accident in 1989 when a researcher studying stars was calibrating a camera pointed at the distant atmosphere where sprites occur.

“Sprites, which only occur in conjunction with thunderstorms, never occur on their own, and are cousins to similar natural phenomenon dubbed by atmospheric electricians as ‘elves’, ‘goblins’ and ‘trolls’,” Prof. Price said.

These flashes are so named because they appear to “dance” in the sky, which may explain some UFO sightings. (ANI)

“Sex switching” key to coral survival during global warming

Washington, Feb 20 (ANI): It has been found in a new research that Japanese sea corals engage in “sex switching”, which may be the key to the survival of the fragile marine species that are currently threatened by global warming.

The research has been undertaken by Professor Yossi Loya from Tel Aviv University’s Department of Zoology.

It was found that in times of stress like extreme hot spells, the female mushroom coral (known as a fungiid coral) switches its sex so that most of the population becomes male.

The advantage of doing so is that male corals can more readily cope with stress when resources are limited, Loya determined.

“We believe, as with orchids and some trees, sex change in corals increases their overall fitness, reinforcing the important role of reproductive plasticity in determining their evolutionary success,” he said.

According to Loya, “One of the evolutionary strategies that some corals use to survive seems to be their ability to change from female to male.”

“As males, they can pass through the bad years, then, when circumstances become more favorable, change back to overt females. Being a female takes more energy. And having the ability to change gender periodically enables a species to maximize its reproductive effort,” he said.

Corals, though a part of the animal kingdom, can act like plants. Both are sedentary life forms, unable to move when times get tough.

In stressful environmental conditions, male corals can “ride out the storm,” so to speak, said Loya.

“Males are less expensive – in the evolutionary sense – to maintain. They are cheaper in terms of their gonads and the energy needed to maintain their bodies,” he added.

Loya’s finding may give new insight to scientists into developing coral breeding strategies for the time when the massive climate changes predicted by scientists set in.

“This knowledge can help coral breeders. Fungiid corals are a hardy coral variety which can be grown in captivity. Once you know its mode of reproduction, we can grow hundreds of thousands f them,” he said. (ANI)

Now, tiny “lab-on-a-chip” to detect pollutants, disease and biological weapons

Washington, Feb 18 (ANI): Taking a huge leap in the detection of pollutants, Tel Aviv University researchers have developed a highly accurate nano-scale biomonitoring laboratory to keep water safe from pollution and bioterrorist threats.

Developed by a team led by Prof. Yosi Shacham-Diamand, vice-dean of TAU’s Faculty of Engineering, the “lab on a chip” is a breakthrough because it has combined biology with the cutting-edge capabilities of nanotechnology.

The nanolab complete with a microscopic workbench can measure water quality in real time.

“We’ve developed a platform – essentially a micro-sized, quarter-inch square ‘lab’ – employing genetically engineered bacteria that light up when presented with a stressor in water,” said Prof. Shacham-Diamand.

Equipment on the little chip can work to help detect very tiny light levels produced by the bacteria.

Shacham-Diamand also said that instead of using animals to help detect threats to a water supply, “our system is based on a plastic chip that is more humane, much faster, more sensitive and much cheaper.”

“Basically, ours is an innovative advance in the ‘lab on a chip’ system. It’s an ingenious nano-scale platform designed to get information out of biological events. Our solution can monitor water with never-before-achieved levels of accuracy. But as a platform, it can also be used for unlimited purposes, such as investigating stem cell therapies or treating cancer.”

The nanolabs can be used to evaluate several biological processes with practical applications, such as microbes in water, stem cells, or breast cancer development.

Now, researchers are joining hands with other Israeli scientists for building and commercialising its water-testing mini-labs to measure and monitor how genetically engineered bacteria respond to pollution such as E. coli in water.

Also, the researchers are exploring other uses of the method-the new lab-on-a-chip could become a defensive weapon that protects America from biological warfare.

Shacham-Diamand said that his system could be also modified to react to chemical threats and pollution and could also be updated as new threats are detected.

The study was recently published in the journal Nano Letters. (ANI)

Ehud Barak – hoping for political rehabilitation

Ehud Barak - hoping for political rehabilitation Tel Aviv – Israel Labour Party leader Ehud Barak is the most decorated soldier in Israel’s history, but doesn’t look the part.

He is pudgy, speaks with a slight lisp, appears stiff and ill-at- ease when facing the television cameras, is regarded as smug, aloof and even – say his many critics – arrogant.

Faced with this perception of their candidate, Barak’s advisors have tried to turn his perceived disadvantages into campaign strengths.

“He’s not trendy, he’s a leader,” proclaim the election posters, which also state that Barak is not, among other qualities “sexy,” “chummy,” or even “nice”.

The attempt to re-market the candidate has not worked. Nor did Barak’s appearance on “Wonderful Country,” Israel’s top-rated television satire show, although his stiff performance as he played himself perfectly suited a woefully unfunny skit.

Even Israel’s three-week-long offensive in the Gaza Strip which had high public backing and which Barak, as defence minister, oversaw, did not significantly boost his popularity.

According to the latest polls, under Barak the Labour Party, once Israel’s automatic party of government, will plunge to its lowest- ever Knesset representation.

It is not so much the candidate’s views, so much as the baggage Barak brings with him.

He was slammed because, as head of a social democratic party, advocating a fair deal for all Israelis, he lived in a luxury apartment in a prestigious Tel Aviv adress.

His decision to sell the apartment only resulted in more scorn being heaped on him, when it transpired that he planned to sell the apartment for around 9 million dollars, quite possibly more money than the average Israeli can hope to see in his lifetime.

His hectoring of unpopular prime minister Ehud Olmert, who was under investigation for alleged corruption, also backfired, when it turned out that Barak’s wife ran a public relations company which offered to introduce clients to some of Israel’s top decision- makers, for 30,000 dollars.

For most Israelis, however, what Barak has against him is his 1999-2001 term as prime minister, which began in almost unlimited hope and ended with a humiliated Barak seeking a “time out” from politics after being trounced in prime ministerial elections.

His 1999 victory was due in no small part to disillusionment with then-prime minister Benjamin Netanyahu, and to Barak’s image as a pro-peace candidate with an almost legendary military record would ensure that he would not compromise on Israel’s security.

But in office he quickly alienated even his most ardent supporters, and critics accused him of being arrogant, incapable of working with others, and unable to adjust to the realities of political life, where compromise and consensus are the tools needed to advance policies.

The prime minister who was sworn into office in July 1999 after scoring the most decisive victory in any Israeli election, left office less than two years later bereft of political allies and with his plans to bring about a lasting peace between Israel and the Palestinians, and then reshape Israeli society, in tatters.

Returning to politics after his brief time out, he assured supporters he had learned his lessons from his first tenure as premier.

But unlike his political rival and former military subordinate, Likud Leader Benjamin Netanyahu, his political rehabilitation, it seems will not extend all the way back to the prime minister’s office, despite the kudos he earned at the helm of the defence ministry during the Gaza offensive.

Barak was born on February 12, 1942 and entered the Israeli army in 1959, serving in a variety of command and combat portfolios, including heading the army’s elite anti-terrorism unit.

He was appointed chief of staff in 1991, on on his retirement from the army in 1995 joined the Labour Party, serving briefly as minister of the interior and then as foreign minister. He took over the leadership of the Labour Party in 1997, resigned after losing the 2001 elections, and then was reelected party head in 2007.

Barak has been married twice, has three children, and has an undergraduate degree in physics and mathematics and a graduate degree in systems analysis. (dpa)

Tzipi Livni’s meteoric rise from obscurity

Tzipi Livni's meteoric rise from obscurityTel Aviv – Ten years ago Tzipi Livni was a novice legislator, entering parliament for the first time. Now, three general elections later, she finds herself within grasping distance of the prime minister’s chair at the centre of the horseshoe-shaped cabinet table in the centre of the Knesset.

By Israeli standards, it has been a meteoric rise. While her two main opponents in Tuesday’s election, Benjamin Netanyahu and Ehud

Barak, have also enjoyed similar fast-tracks to the top, the former entered politics after several high-profile public service jobs, while the latter “parachuted” into politics (to use the Israeli term) directly from a distinguished military career.

Livni’s rise to the top is in no small part due to a shift in her ideological thinking, which has seen her abandon the hawkish, hardline ideology of the Likud Party, in favour of the political centre.

In an interview with The New York Times in June, she said she was raised on two key values, which she later found contradictory – “that the whole (Biblical) land of Israel was our heritage,” and “the need to respect others, not to control others’ lives.”

“I reached my own conclusion, that there is a need to divide the land,” she said. “I still believe in our right to the whole land, but felt it was more important to make a compromise.”

Livni was one of the first to follow former premier Ariel Sharon when he broke away from the Likud to form the Kadima party in late 2005.

When Sharon was felled by a massive hemorrhagic stroke several weeks before the March 2006 elections, she was briefly touted as a possible replacement at the head of the centrist party, but when Ehud Olmert was chosen, she was quick to declare her support for him.

Her reward was the foreign ministry, and when Israel renewed negotiations with the Palestinians at the end of 2007, she was appointed head of the Israeli negotiating team, even though her relations with Olmert had by then soured dramatically.

She won the leadership of Kadima after Olmert, besieged by investigations into his alleged corruption, quit the party leadership, and she won by emphasizing that she represented a new, cleaner style of politics, in contrast to her unpopular predecessor.

This was to have been the fulcrum of her election campaign, but events, in the form of Israel’s three-week-long offensive in the Gaza Strip, intervened.

The offensive was a boon to Netanyahu, who had for months been demanding that Israel take tough measures against Hamas and other militant groups in the enclave.

The offensive, launched after repeated rocket barrages on Israel from the salient, was popular among the Israeli public, and Livni, mindful of losing votes to Netanyahu, who for months had been advocating a harsh Israeli response to the rockets, began adopting an increasingly belligerent tone.

She has thus urged a harsh response to continued rocket attacks from Gaza, and even spoke of a new offensive in the enclave if necessary.

But at the same time, she has been careful not to alienate the more moderate among her supporters, letting it be known, for example, that she had been in favour of an early end to the offensive in the Strip.

These seemingly contradictory attitudes provide ammunition to her detractors, who say is a sphinx, liked by many not because they know who she is, but because they do not know.

Other critics also say she at times appears cold and shows no emotion, while supporters stress her integrity, authenticity and her analytical and decision-making abilities.

She prefers to call herself a pragmatist.

Livni was born in Tel Aviv on July 5, 1958. Her roots are in the “aristocracy” of Israeli right wing politics. Both her parents were in the pre-State armed group Irgun. Her father Eitan served as the group’s operations officer and, after being captured by the British mandate authorities, led a daring breakout from Acre jail in 1947. He served three terms in parliament after Israel was founded in 1948.

Livni graduated in law at Bar Ilan University, near Tel Aviv, served as a lieutenant in the Israeli army and was an agent in the Mossad intelligence organization.

Her public life began when she was appointed Director General of the Government Companies Authority, placed in charge privatizing government companies and monopolies.

She entered parliament in 1999, on behalf of the Likud, and quickly caught the eye of then-Likud leader Ariel Sharon. When Sharon was elected premier in 2001, Livni found herself in the cabinet, holding a succession of portfolios, culminating in her appointment as foreign minister.

Livni, who plays the drums for relaxation , says she prefers jeans to a suit and sneakers to high heels, has been a vegetarian since age 12. She is married to a Tel Aviv attorney, and is the mother of two sons. (dpa)

Benjamin Netanyahu – Silver-tongued hawk ahead in polls

Benjamin Netanyahu - Silver-tongued hawk ahead in polls Tel Aviv – Few people feel neutral about Israeli prime ministerial hopeful and Likud Party leader Benjamin Netanyahu.

His enemies accuse him of being untrustworthy, duplicitous, devious, unscrupulous and of having been an incompetent premier during his 1996 to 1999 tenure.

They point to the fact that while he began his tenure in the prime minister’s office with comparisons to John F Kennedy (mainly because of his young age), he ended it abandoned by coalition allies and castigated by just about everyone else.

His supporters, on the other hand, regard him as intelligent, professional and highly proficient, able to defend Israel’s interests in a hostile, even anti-Semitic, world.

They point out that his tough approach to peace-making during his premiership ended the spate of suicide bombings by Palestinian militants against Israelis, and lowered Palestinian expectations in the peace process.

Even during his brief timeout from politics following his premiership, and then his return to the cabinet of then-premier Ariel Sharon, Netanyahu remained a vocal and hardline critic of Israeli peace moves, resigning from the government to protest Sharon’s plan to unilaterally withdraw Israeli troops and settlers from the Gaza Strip.

He took over the Likud when Sharon bolted to form the centrist Kadima faction, and although the Likud scored its lowest-ever Knesset representation in the 2006 elections, it is now – according to the polls at least – positioned to return to power.

The renaissance is due in no small part to the perception that Netanyahu was right when he warned that unilateral Israeli withdrawals from south Lebanon and the Gaza Strip would enable those territories to serve as springboards for attacks on Israel.

Netanyahu has been particularly vocal on the subject of the Islamist Hamas movement which controls the Gaza Strip, telling an audience at a conference near Tel Aviv that if Israel wanted to remove the missiles militants fire regularly from the salient, “we have no choice but to remove the regime in Gaza.”

At the same time, while campaigning for premier, Netanyahu has moderated somewhat his formerly maximalist approach to the peace process, saying he will continue searching for a political solution to the conflict, but adding the rider that that any such solution has to be accompanied by the economic development of the Palestinian territories and the strengthening of the moderates in the Palestinian Authority.

He has also sworn not to relinquish Israeli control over East Jerusalem which Palestinians want as the capital of their future state.

When he won his extremely narrow victory in the 1996 prime ministerial race, the articulate Netanyahu was seen as representing something different, almost unique, in Israeli politics, and not just because he was the first prime minister to have been born after the creation of the state.

American-oriented, he gave off an appearance of slick professionalism, unlike the dour, colourless Israeli politicians of previous generations.

Born on October 21, 1949 in an affluent suburb of Jerusalem, the son a respected academic, he served as an officer in an elite Israeli army commando unit, like his elder brother Jonathan, who became a national hero when was killed in the daring Israeli rescue of hijacked hostages at Entebbe, Uganda, on the night of July 3-4, 1976.

He was educated in the United States and graduated from the Massachusetts Institute of Technology, with a masters in business management.

Plucked from obscurity in the early 1980s when he was working as a marketing manager at a Jerusalem furniture company, to become information attache at the Israeli embassy in Washington, he was soon appointed Israeli ambassador to the United Nations.

There his media skills and fluent speaking style – which awe even his critics even if not convincing them – ensured he became a star not only on US television, but among the Israeli public.

He had no trouble getting elected to parliament for the Likud Party in 1988, and served as deputy foreign minister and then a deputy minister in the Prime Minister’s office.

When the Likud lost the 1992 elections, Netanyahu was instrumental in instituting American-style primaries to determine the next party leader, and to no-one’s surprise won handsomely.

He is married and has three children. (dpa)