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Rubbish gives clues to ocean currents

Rubbish collected from Tasmania’s rugged south-west coast will be used to analyse ocean currents.

A team of environmental volunteers from the group Wildcare will collect the rubbish from the beaches off Tasmania’s World Heritage Wilderness Area.

Clean-up organiser Matt Dell says scientists can use rubbish washed up on Tasmania’s beaches to calculate how the earth’s ocean currents circulate.

“They can model the ocean currents, they have little tags that they throw out all round the world that are called drift cards and they can use them to model where stuff comes from and where it’s going to end up,” he said.

“So they combine that with the ocean currents and they can backtrack and work out where materials come from,” Mr Dell said.

Robotic seals uncovering Tasmania’s deep ocean secrets

A robotic sea glider operating in waters off southern Tasmania promises to revolutionise oceanography in Australia.

A team of Tasmanian scientists has just begun a three-year project, monitoring the information collected by the $200,000 glider.

It measures ocean temperature, salinity, plant life and oxygen levels and uses electronic sensors to take measurements which are then transmitted back to base in close to real time.

Peter Thompson from the CSIRO says the glider will provide information about marine environments and climate change that has never before been accessible.

“We believe it will really assist people who have to make decisions about how to manage the marine industries, the industries that impact on the marine environment better going forward,” Dr Thompson said.

“It will be probably the first time in Australia that anyone’s managed to bring together such a range of studies to ask the question how can you better manage the marine environment,” he said.

The scientists hope to expand the fleet of gliders so similar research can be undertaken around the country.

Landmark ruling deems cancer gene patents invalid

A district court judge in the United States has ruled that patents should not have been awarded over the breast and ovarian cancer genes BRCA1 and 2.

The decision raises serious concerns about whether patents should be awarded on human and other genes and proteins found in nature.

It is the first time a court has found patents on genes unlawful and calls into question the validity of patents now held on about 2,000 human genes.

The case, brought by the American Civil Liberties Union (ACLU), was prompted by the actions of patent owner Myriad Genetics who claims the exclusive right to test for BRCA1 and BRCA2.

The tests show whether a woman is more susceptible to developing breast and ovarian cancer.

ACLU attorney Chris Hansen said: “Today’s ruling is a victory for the free flow of ideas in scientific research.”

Myriad Genetics charges women in the US around $3,700 for the test and the company does not allow second opinions.

The exclusive licence for the tests in Australia is owned by Genetic Technologies Limited which has “gifted” its intellectual property rights to Australian institutions and does not impose royalties here.

In 2003 and 2008, however, Genetic Technologies Limited sent legal letters to Westmead Hospital and the Peter MacCallum Cancer Institute in Victoria to cease testing for the BRCA1 and 2 genes.

In the district court in New York, Judge Robert Sweet found that certain respects of the seven patents awarded over the human genes are invalid.

Judge Sweet found that removing the gene from its natural environment, the body, is not sufficiently different to what is found in nature, therefore such processes are a “discovery” and not an “invention”, making any patent invalid.

On the diagnostic side, the judgment also says the use of the gene material in the test does not make the test patentable.

There is no transformation that happens to the biological materials themselves that means the company can claim an “invention” and therefore be awarded a patent over the genes.

Myriad Genetics has yet to announce whether it will appeal the decision.

In Australia, a Senate inquiry into gene patents is expected to report in June.

It has heard evidence from both sides of the argument including from Australia’s biotech industry, which says any moves to ban patents on genes will be disastrous for investment and the biotech industry as a whole.

Sowing hope in hungry East Timor

There are two distinct seasons in East Timor – the wet season and the dry season.

For many East Timorese, the time in between includes three to four months known as the hungry months, when last year’s supplies of rice and maize have run out and the new season’s crops have yet to yield.

East Timor president Jose Ramos-Horta is acutely aware of his country’s annual famine.

“This for me is a most pressing and heartbreaking situation. I see people who cannot even afford to have a proper meal a day,” he said.

“The number one priority for us is food security to eliminate malnourishment.

“Children who are stunted because of malnutrition in the first few years of their lives, they cannot perform too well in school because they are malnourished.

“It takes time, it takes years for us to improve agriculture with better productivity, better seeds, better farming techniques and better roads for the goods to circulate faster and cheaply.”

It’s almost 10 years since East Timor gained its independence from Indonesia.

The steps on its march to nationhood have often been faltering. The departing Indonesian forces left a country in ruins, its infrastructure in tatters.

Political unrest has further stymied progress.

So the impending wet season makes the farmers restless. Everything depends on good rains and bountiful crops.

In the mountains south of the capital, Dili, a woman stabs the earth with a digging stick, bobbing as she flicks seeds into the thin jungle soils, a method unchanged in centuries.

East Timor’s demographics are staggering.

This farmer has five children aged under 10. The national average is eight children per family. Half of East Timor’s population is less than 10 years old.

Of East Timor’s 1 million people, about three quarters live in rural areas and subsist on about one hectare of land.

Infant and maternal mortality rates are among the highest in the world.

Children are seen not so much as burdens but as essential labourers, and most endure hard physical work from the age of six, lumping firewood from the forest or produce to and from market.

Fighting famine

Of the many hundreds of aid organisations that have worked in East Timor during the past decade, it would be hard to find one more elemental or effective than Seeds of Life.

Rob Williams is an agronomist with the aid agency, which is funded by the Australian Government.

“Seeds of Life aims to do two things,” he said. “One is to increase yields on farms.

“The second is to train East Timorese scientists, East Timorese researchers to a level where they can solve their own agricultural problems so they can do research that assists their farmers.”

Seeds of Life scientists have identified and propagated the best strains of the country’s staple food crops of corn, rice, peanut, sweet potato and cassava.

“We’ve tested these new varieties on thousands of farmers,” Mr Williams said.

“And as a result of this, last year we distributed about 100 tonnes of seed in five-kilogram lots that have gone out to more than 20,000 farming families, so it’s starting to have a large impact on farming families in East Timor.

“The varieties are public domain varieties, which means the farmer can plant them, keep the seed and plant them again the next year.”

In East Timor’s Alieu district, Senor Zacharias Mouzinho Gusmao proudly shows us his flourishing corn crop, a high-yielding variety with large cobs.

It is one of two new corn varieties introduced, tested and released by Seeds of Life in partnership with the ministry of agriculture.

Sold as fresh corn, it has made Senor Gusmao a tidy sum.

Demand for crops

Throughout the country’s farming districts, word has spread of the new, superior varieties, and Seeds of Life cannot meet demand.

In Baucau province in the country’s east, newly installed seed cleaning and bagging machines have revolutionised the process of seed distribution.

And nearby, in a communally planted field, local dignitaries attending a field day are pulling large sweet potato tubers from the red soil.

The new variety is yielding about 18 tonnes per hectare – double the traditional varieties and on par with world standards.

These sweet potatoes are being sold in Dili and for the first time families have some disposable income. Some say they will now be able to send their children to school.

In Dili, agriculture minister Senor Mariano Assanami Sabino says his most pressing duty is overcoming rural poverty.

“And how to realise the dream of the majority of people in Timor Leste,” he said.

“We fight for the independence and continue the fight of how to reduce the poverty in Timor Leste.”

Local workers

Locally trained staff members are crucial to the success of Seeds of Life.

“We currently have a group of 40 young researchers, mostly graduated from the University of East Timor as agronomists,” Mr Williams said.

“We’ve taken them on board and we’re training them in many, many skills. Some never knew how to ride a motorbike when they started with Seeds of Life.

“Some now can interview in English. They can go out and run a field day by themselves. They work with farmers testing the new innovations. They can conduct their own research experiments to choose the best varieties for their own country.”

One of those trainees, Luis Perriera, distributes the new varieties in the Maubisse region of the country’s central highlands.

“The farmers really like it. I’ve been working with them for the last two years in this district,” he said.

“They can see with their own eyes that the yields are better and they prefer to keep growing the new varieties.

“The farmers themselves will be producing more seed so that they can grow their own seed in future years.

“I think it’s very important work, very worthwhile work because I am working for the development of my own country through agriculture, and in this way we can marry the hard work of the farmers together with the new varieties to get better yields for farmers.”

Rebuilding research stations

Seeds of Life is working closely with East Timor’s ministry of agriculture to rebuild research stations.

“After the violence in 1999 when Indonesians left East Timor, all the research stations in this country were destroyed,” Mr Williams said.

“Many of the trained, professional staff in East Timor were Indonesians who then moved back to Indonesia, so there was a large gap of trained people in East Timor.

“Seeds of Life has a mandate of rebuilding and re-establishing three agricultural research stations in this country.”

Loes Research Station is a 12-hectare site on a fertile river plain several hours’ drive west of Dili.

“The research stations are important to Seeds of Life,” Mr Williams said.

“That’s the locations where we test a large number of varieties on a small number of locations before choosing a small number of varieties to test on a large number of locations.”

Rowan Clarke and his fiancee Rebecca Andersen are Australian agronomists based at Loes with Seeds of Life.

After the violence and civil unrest in 1999, the complex lay abandoned and derelict for almost a decade.

Now it is undergoing a spectacular revival. The land and buildings are being repaired under Mr Clarke’s guidance.

“The story is there was only one building that had been burnt and that was probably accidental,” Mr Clarke said.

“But the rest had just been robbed of anything of any value. All the roofing iron went with the Indonesians. The copper was all taken out of the wiring. The white ants had been through any wood and they were just shells.”

Ms Andersen trained in horticulture and decided to work in East Timor after a holiday there.

She says their work is important for the country’s food security.

“We’ve got about 15 varieties of maize that we’ve got on station at the moment and about another 15 peanut varieties, and about 20 cassava varieties, and we’re also beginning to test kava crops and different types of legumes,” she said.

“I think the ministry of agriculture has the leading priority in the country and so places like this are making a really big impact on food security.”

Watch the full Landline report at 12:00pm Sunday on ABC 1.

Adelaide part of golden staph vaccine trial

Adelaide’s Women’s and Children’s Hospital is after volunteers for a trial of a vaccine aimed at preventing potentially-deadly golden staph infection.

The bacteria live on the skin of about 30 per cent of the population and are usually harmless.

But if they enter the bloodstream, it can lead to pneumonia and joint infections.

Hospital patients are susceptible if they are recovering from surgical or other wounds.

Dr Helen Marshall says the hospital wants to recruit about 50 people for the trial.

“We’re hoping to enrol adults particularly for the study, 18 to 25-year-old adults and then 50 to 85 years,” she said.

“The study is being done in many centres around Australia, we’re just one of the study centres participating.”

The hospital can be contacted on 8161 6328.

Wild and wonderful discoveries in the Tasmanian bush

Scientists studying Tasmanian wildlife say one of their discoveries could have implications for the pharmaceutical industry.

The researchers have identified 60 new spider species under a Federally-funded program to document plants and animals in Australia’s natural reserves.

Among the findings are a large, web-throwing spider and a Tasmanian funnel-web spider which has not been seen since the 1920s.

Spider expert Doctor Robert Raven says the funnel-web will be of great interest to pharmaceutical companies that use spider venom to develop new drugs.

“With funnel webs any animal that has an effect on vertebrates, animals with backbones including humans, is always very significant from the pharmaceutical point of view,” he said.

“Every funnel web has a different venom, so that every venom has a potential to produce something more interesting and valuable to pharmaceutical companies.”

The researchers have also found new moths and snails.

Doctor Catherine Young from the Tasmanian Museum and Art Gallery says the research is unusual because of its focus on discovering new species.

“This is a fantastic way of actually getting a lot of the species that are hitherto unknown or undescribed actually known and that has quite significant scientific implications,” she said.

Hypersonic plane passes latest test

The Federal Government says Australian and US defence scientists have successfully tested a hypersonic aircraft for the second time in South Australia’s outback.

The aircraft soared through the atmosphere at more than 5,000 kilometres per hour after taking off from the Woomera Test Range.

The experiment was first conducted in May last year and more tests are planned.

Hypersonic flight could potentially allow people to travel between Sydney and London in just two hours.

Science to allow graziers to track stock

Scientists says real-time tracking devices should be commercially available within five years to let farmers know exactly where their herds are grazing.

A research team from the University of New England has conducted a trial in western New South Wales using GPS cattle collars.

It showed steers only used 10 to 20 per cent of the paddock available to them for grazing.

Spokesman Mark Trotter says the team is looking at the benefits of real-time tracking, where farmers would know instantly what their herds are doing.

“There are several companies out there at the moment developing real-time tracking systems that will enable producers to see where their livestock are grazing at any given point in time – they can look it up on their computer at home or say on their iPhone,” he said.

“We’re sort of talking about three to five years before we start to see some of these systems filtering through into a commercial situation.”

Dr Trotter says several companies are working on the systems.

“A lot of these are developing something that will be the size of an ear tag that would give the positional data,” he said.

“Obviously a collar is not necessarily practical for a lot of agricultural enterprises.

“It might be okay for some dairy situations or some intensive systems but certainly we need to get it down to an ear tag form factor to be applied in a wider livestock sense.”

Researchers study cane farm innovation

A north Queensland cane farm is leading the way in new and innovative farming practices.

Researchers at a demonstration farm at Tully are looking at two different projects – an improved farming system and a conventional system.

Demonstration Science project officer Mark Whitten says researchers are studying the differences in surface water run-off between the two systems, for water quality improvement and the economic value.

“One component we’re looking at … is improved record keeping through computer software,” he said.

“That’s definitely a component of farming systems which is overlooked and one that we really want to get going.”

Forensics database set up in Perth

Researchers in Perth are building a database of skeletons to help identify bodies more quickly and accurately.

The University of Western Australia has been given a $400,000 grant for the project, which involves mapping the shape and co-ordinates of bones.

Assistant Professor Daniel Franklin has told WA’s Stateline program, police will then use the database to identify specific features of skeletons such as the age, sex and ethnicity.

“They could digitise various parts of the skeleton whether it be the skull, hip bone or various leg bones, we should have data for all of that,” he said.

“The police should be able to get an answer as to whether the individual was a male or a female, potentially how old they were.”

WA Police Superintendent, Haydn Green, was in charge of identifying the victims in Phuket from the 2004 Boxing Day Tsunami.

He says the database will be extremely helpful in the future.

US army set for “hopping rotochut” that hops to avoid rubble trouble

London, September 19 (ANI): The U.S. army’s fleet of robots will soon be enhanced with the addition of forthcoming reconnaissance craft called the ‘hopping rotochute’, which will be capable of travelling deep into obstacle-ridden spaces like caves and rubble-laden buildings to video what it finds.

The self-righting probe is being developed for the Army Research Lab in Aberdeen, Maryland, by Eric Beyer and Mark Costello, a pair of robotics engineers at Georgia Institute of Technology in Atlanta.

The project attains significance because present-day military robots, which run on small tank-style tracks, cannot cope with irregular surfaces and obstacles such as rubble or boulders.

“They usually have trouble and get stuck with even low obstacles and walls a couple of feet high,” says Costello.

Although small helicopters are one alternative, continuous flying drains the batteries fast.

Thus, Costello stresses the need for a rotor-powered, bottom-heavy, self-righting vehicle that spends most of its time on the ground, conserving battery power.

AS to whether repeated hopping might harm the craft, a spokesman for the Impact Centre at Cranfield University in Bedfordshire, UK, said: “From a crashworthiness point of view this concept looks perfectly feasible. There should be no problem with the vehicle surviving hundreds of impacts, which is roughly equivalent to dropping a mobile phone from waist height.” (ANI)

HIV uses several routes to escape immune system pressure

Washington, September 19 (ANI): Researchers at the Emory Vaccine Center have shown that HIV relies upon a number of strategies rather than use any preferred escape route to escape immune system pressure.

The human immune system has the ability to temporarily overpower HIV in early infection.

Studies conducted in the recent past have shown that most newly infected patients develop neutralizing antibodies. These are blood proteins that glob onto the virus and would allow patients to defend themselves – if they were facing only one target.

However, the problem occurs when HIV mutates, and disguises itself enough to get away from the antibodies. The virus eventually wears down the immune system into exhaustion.

The Emory team’s findings attain significance as they suggest that even if any scientist succeeds in identifying a vaccine component that can stimulate neutralizing antibodies, HIV’s capacity for rapid mutation could still be a confounding factor.

Dr. Cynthia Derdeyn, associate professor of pathology at Emory University School of Medicine, Emory Vaccine Center and Yerkes National Primate Research Center, says that a single type of neutralizing antibody may not be enough to contain HIV.

“These neutralizing antibodies work really well – they hit the virus fast and hard. But so far, every time we look, the virus escapes,” she says.

During the study, the researchers took blood samples from the participants a few weeks after infection occurred, and then later as two participants’ immune responses continued.

They isolated individual viruses over the first two years of HIV infection, and tested how well the patients’ own antibodies could neutralize them.

“In one patient where we had very early samples, there was evidence that neutralizing antibody came up within weeks, and that’s earlier than what was previously thought,” Derdeyn says.

In both patients, some viruses mutated part of their outer proteins so that after the mutation, an enzyme would be likely to attach a sugar molecule to it.

Though the sugar molecule interferes with antibody attack, this tactic, known as the “glycan shield”, was not observed in all cases.

Other viruses mutated the part of the outer protein that the neutralizing antibodies stick to directly. In both patients, many changes in the virus’ genetic code were necessary for escape.

“We need to understand early events in the immune response if we are going to figure out what a potential vaccine should have in it. What we can show is that even in one patient, several escape strategies are going on,” Derdeyn says.

According to her, that means that in order to be immune to HIV infection, someone may need to have several types of neutralizing antibodies ready to go.

Seeing how the virus mutates will allow researchers to choose the best parts to put in a vaccine, she says.

The results are online and scheduled for publication in the September issue of the journal Public Library of Science Pathogens.(ANI)

Pak inks 220-million-dollar satellite deal with China

Islamabad, Sep. 19 (ANI): Pakistan has signed an agreement with China to provide a 220-million-dollar financial grant to help the Islamic country launch a communication satellite.

The operational life of Pakistan’s existing satellite PAKSAT-1 will be over in November 2011.

Chinese Ambassador to Pakistan Luo Zhaohui and Pakistan’s Economic Affairs Secretary Farrukh Qayyum signed the contract.

“China has agreed to fund the project through a soft loan with low mark up for a period of 20 years,” the Daily Times quoted Qayyum, as saying.

The Space and Upper Atmosphere Research Organisation (SUPARCO) and the China Great Wall Industry Corporation have agreed to develop the new satellite PAKSAT-1R, which would replace PAKSAT-1 in September 2011, he added.

The satellite will support all conventional and modern fixed satellite service (FSS) applications.

The satellite will have 30 transponders, 18 in the Ku-band and 12 in C-band (ANI)

Young age at first drink can turn under-15s into alcoholics

Washington, Sept 19 (ANI): Drinking at young age may affect genes linked to alcoholism and make youngsters vulnerable to severe problems, says a new study.

The study led by Dr Arpana Agrawal, from Washington University School of Medicine in St. Louis, revealed that the younger an individual was at first drink, the greater the risk for alcohol dependence and the more prominent the role played by genetic factors.

“There seemed to be a greater genetic influence in those who took their first full drink at a younger age,” said Agrawal.

“That’s very consistent with what has been predicted in the literature and in the classification of types of alcohol dependence, but we present a unique test of the hypothesis,” she added.

During the study, the researchers studied 6,257 adult twins from Australia and measured the extent to which age at first drink changed the role of heritable influences on symptoms of alcohol dependence.

The study showed that when twins started drinking early, genetic factors contributed greatly to risk for alcohol dependence, at rates as high as 90 percent in the youngest drinkers.

The team also found that those who were 15 or younger when they started drinking tended to have a greater genetic risk for alcohol dependence.

However, some who were 16 or older before they took their first drink later became alcohol dependent, but their dependence was related more to environmental factors.

“Something about starting to drink at an early age puts young people at risk for later problems associated with drinking,” Agrawal says.

“We continue to investigate the mechanisms, but encouraging youth to delay their drinking debut may help.

“Some early-onset drinkers do not develop alcohol problems and some late-onset drinkers do – we are working on why that is the case, but it is important to note that this is one risk factor among many and does not determine whether a person will, or will not, develop alcohol dependence.

“But age at first drink is a well-known risk factor, and there have been two main hypotheses about why:

One has been that common genetic and environmental factors contribute both to the risk for alcohol dependence and to the likelihood a person will be younger when consuming their first drink,” she added.

The study will be published Alcoholism: Clinical and Experimental Research. (ANI)

European company develops mobile robots that are autonomous and multi-tasking

Madrid (Spain), September 19 (ANI): An European company has developed innovative robots which are mobile, multifunctional, collaborative, autonomous and polyvalent, suitable for a wide range of work from street cleaning and rubbish collection to accompanying elderly people.

According to a report carried out in www.basqueresearch.com, this new generation of robots have been developed by TECNALIA Technological Corporation, and are a part of the European DUSTBOT research project under the remit of the VI European Framework Programme and in which TECNALIA is participating.

These latest generation robots are suitable for the monitoring of large spaces (open and closed), as guides for persons in large shopping areas (indicating to them where a particular shop or product is within a shopping centre), for accompanying elderly people or those with certain disabilities (both at home and outside), thanks to their functions of orientation, navigation, communications with others or tele-assistance centres.

They can also be used as guides in teaching spaces (museums, visitor centres), and for transport, storage and transport and goods deliveries, besides the cleaning of both open and closed surfaces, which have either difficult or easy access.

DUSTBOT has collaborative, multifunctional and autonomous robots that are capable of operating in partially destructured environments/situations based on information provided by a map.

The robots can also facilitate working in large areas, stations, airports and other types of public buildings, without being any obstacle for the activity of these places, given its reduced size, and without being a danger for members of the public, thanks to the novel system for the detection and avoidance of obstacles.

The rail station of the Euskotren company in the Bilbao neighbourhood of Atxuri in Spain was chosen for the public presentation of these devices.

The demonstration of two robot models was undertaken: the DustCart and the DustClean.

The DustCart robot, measuring 1.45 metres high and 70 Kg in weight, has a humanoid form and is designed to interact with the user and for the collection of low demand waste.

The DustClean robot, in the form of a small vehicle and measuring 96 cm high and 250 Kg in weight, cleans streets of dirt and dust. Moreover, both control the quality of air in real time.

“These robots are the solution for cleaning areas of difficult access and for the collection of rubbish at the very front door of, above all, persons who have mobility problems when moving the rubbish to the communal waste containers,” said Inaki Inzunza, Director of the Business Unit at the Tecnalia Technological Corporation. (ANI)

Will Sarabjeet be spared the gallows under Pak Govt.’s plans to commute death sentences?

Islamabad, Sep.17 (ANI): The Pakistan government is considering commuting death sentences, but such a step may not help the cause of Sarabjeet Singh, the Indian inmate who has been awarded a death sentence by a Lahore anti-terrorism court in October 1991.

Interior Advisor Rehman Malik said the government has sent a draft to the law division seeking legal opinion on the proposal to commute death sentences.

Rehman, however, said that even if the proposal is accepted there would be no mercy for terrorists.

“They (terrorists) will have to face the death penalty,” The Dawn quoted Malik, as saying.

According to an estimate there are 7000 death inmates in Pakistan at present.

Pakistan security agencies have maintained that Singh had admitted that he was sent to Pakistan to carry out serial bomb blasts in Lahore, Faislabad, and Kasur, and was trained by the Indian Army, and the Research and Analysis Wing (RAW).

Singh was awarded the death sentence by a Lahore anti-terrorism court in October 1991.

He challenged the verdict in the Supreme Court, however, the apex court quashed his appeal in September, 2005, saying that the review petition was not filed within the time period as mentioned in the law.

In March 2006, a two member Supreme Court bench dismissed Singh’s petition against his conviction in the Lahore’s Yakki Gate bomb blast in 1990.

Singh has been languishing in Pakistan jails for the last 28 years, as Pakistan has stonewalled release even on humanitarian grounds, despite continuous efforts by Indian diplomatic channels. (ANI)

Natural hydrogel may boost spinal cord healing

Washington, Sep 18 (ANI): A jab of biomaterial gel into a spinal cord injury site may significantly improve healing, according to researchers at the Barrow Neurological Institute at St. Joseph’s Hospital and Medical Center.

Dr. Mark Preul and Dr. Alyssa Panitch have found in a study that injection of an engineered hydrogel made up mainly of hyaluronic acid (a naturally-occurring body substance) into the spinal cord injury site decreases scarring, and promotes a realignment of the spinal cord fibres around the injury site.

The hyaluronic acid, which forms a scaffold-like configuration may help to structurally stabilize the spinal cord injury site.

The researchers traced cells in the brain stem after injury, and found much higher levels in the hydrogel treated animals as compared to animals that did not receive the treatment, and approached nearly normal levels.

Treated animals had higher functional scores than their non-treated counterparts.

“Spinal cord injury is devastating to civilian and military populations – especially to the young. There has been little progress toward paradigms of regeneration and few results that show real, sustained functional recovery. We’ve been so pre-occupied with regeneration, but that is a highly complicated and difficult to define goal. This project is a synergy of neurosurgeons and bioengineers that attempts repair of the SCI lesion cavity using a tissue-engineering biomaterials approach,” says Preul.

He added that the team aimed at finding ways to structurally allow the body to better heal itself.

“In this project we did not add anything to the hyaluronic acid. It may be that adding growth factors or cells into the gel matrix may allow even better results,” he said.

Preul said that the results show “we may be on a practical path that can give hope to the many people who suffer this sort of injury.”

The work was presented at the Annual Meeting of the American Association of Neurological Surgeons in San Diego where it won the Synthes Prize for Spine Research. (ANI)

How life might evolve with “exotic” biochemistry and solvents

London, September 18 (ANI): Scientists at a new interdisciplinary research group in Austria are working to uncover how life might evolve with “exotic” biochemistry and solvents, such as sulfuric acid instead of water.

The research group for Alternative Solvents as a Basis for Life Supporting Zones in (Exo-) Planetary Systems was established by the University of Vienna.

Traditionally, planets that might sustain life are looked for in the ‘habitable zone’, the region around a star in which Earth-like planets with carbon dioxide, water vapor and nitrogen atmospheres could maintain liquid water on their surfaces.

Consequently, scientists have been looking for biomarkers produced by extraterrestrial life with metabolisms resembling the terrestrial ones, where water is used as a solvent and the building blocks of life, amino acids, are based on carbon and oxygen.

However, these may not be the only conditions under which life could evolve.

“It is time to make a radical change in our present geocentric mindset for life as we know it on Earth,” said scientist Johannes Leitner.

“Even though this is the only kind of life we know, it cannot be ruled out that life forms have evolved somewhere that neither rely on water nor on a carbon and oxygen based metabolism,” he added.

One requirement for a life-supporting solvent is that it remains liquid over a large temperature range.

Water is liquid between 0 degree Celsius and 100 degrees C, but other solvents exist which are liquid over more than 200 degrees C.

Such a solvent would allow an ocean on a planet closer to the central star.

The reverse scenario is also possible. A liquid ocean of ammonia could exist much further from a star.

Furthermore, sulfuric acid can be found within the cloud layers of Venus and it is now known that lakes of methane/ethane cover parts of the surface of the Saturnian satellite Titan.

Consequently, the discussion on potential life and the best strategies for its detection is ongoing and not only limited to exoplanets and habitable zones.

The newly established research group at the University of Vienna, together with international collaborators, will investigate the properties of a range of solvents other than water, including their abundance in space, thermal and biochemical characteristics as well as their ability to support the origin and evolution of life supporting metabolisms. (ANI)

Researchers operate biomedical robots from different locations worldwide via Internet

Washington, September 18 (ANI): Experts from the University of Washington and SRI International have jointly developed a new software protocol, to standardize the way biomedical robots are managed over the Internet.

Nine research teams from universities and research institutes around the world recently made a successful demonstration of biomedical robots operated from different locations in the U.S., Europe, and Asia with the help of the ‘Interoperable Telesurgical Protocol’.

In a 24-hour period, each participating group connected over the Internet, and controlled robots at different locations.

The tests performed demonstrated how a wide variety of robot and controller designs can seamlessly interoperate, allowing researchers to work together easily and more efficiently.

The demonstration also evaluated the feasibility of robotic manipulation from multiple sites, and was conducted to measure time and performance for evaluating laparoscopic surgical skills.

“Although many telemanipulation systems have common features, there is currently no accepted protocol for connecting these systems. We hope this new protocol serves as a starting point for the discussion and development of a robust and practical Internet-type standard that supports the interoperability of future robotic systems,” said SRI’s Tom Low.

The protocol is expected to allow engineers and designers that usually develop technologies independently, to work collaboratively, determine which designs work best, encourage widespread adoption of the new communications protocol, and help robotics research to evolve more rapidly.

Its early adoption may encourage robotic systems to be developed with interoperability in mind, and avoid future incompatibilities.

“We’re very pleased with the success of the event in which almost all of the possible connections between operator stations and remote robots were successful. We were particularly excited that novel elements such as a simulated robot and an exoskeleton controller worked smoothly with the other remote manipulation systems,” said Professor Blake Hannaford of the University of Washington. (ANI)