Children’s copycat behavior is universal

Washington, May 4 (ANI): A particular kind of imitation – overimitation, in which a child copies everything an adult shows them – appears to be a universal human activity, rather than something the children of middle-class parents pick up, claims a new study.

Scientists “have been finding this odd effect where children will copy everything that they see an adult demonstrate to them, even if there are clear or obvious reasons why those actions would be irrelevant,” says psychologist Mark Nielsen, of the University of Queensland in Australia. “It”s something that we know that other primates don”t do.” If a chimpanzee is shown an irrelevant action, they won”t copy it – they”ll skip right to the action that makes something happen.

But it”s not clear that the results found in child psychology research apply to all people, Nielsen says.

This research is usually done with children who live in Western cultures, whose parents are well educated and middle to upper class. And these parents are constantly teaching their children. But parents in indigenous cultures generally don”t spend a lot of time teaching.

“They may slow what they”re doing if the child is watching, but it”s not the kind of active instruction that”s common in Western cultures,” says Nielsen.

So he teamed up with Keyan Tomaselli, an anthropologist at the University of KwaZulu-Natal in Durban, South Africa, who has worked for decades in Bushman communities in southern Africa.

The study is published in Psychological Science, a journal of the Association for Psychological Science.

For the experiments, the children were shown how to open a box – but in a complicated way, with impractical actions thrown in. For example, the adult would drag a stick across a box, then use a stick to open the box by pulling on a knob – which is a lot easier if you just use your fingers. Most of the children copied what the adults did, even if they”d been given the opportunity to play with the box first and figure out how it worked. This was just as true for Bushman children as for the Australian children.

But aren”t the children just following the rules of what appears to be a game? “That kind of is the point,” says Nielsen. “Perhaps not a game, but certainly, when I demonstrate the action, it”s purposeful. So from the mind of a child, perhaps there”s a reason why I”m doing this.” This willingness to assume that an action has some unknown purpose, and to copy it, may be part of how humans develop and share culture, he says. “Really, we see these sorts of behaviors as being a core part of developing this human cultural mind, where we”re so motivated to do things like those around us and be like those around us.” (ANI)

Now, painless vaccines!

it surely was too much pain, for a lot of good. Now, the trade-off is unlikely to stay current.

In what would make childhood immunisation easier and pain-free, scientists have developed a patch — the size of a postage stamp — which they claim could be used to deliver cheap, needle-free vaccines.

A new study, led by the University of Queensland, has found that a vaccine delivered by ‘Nanopatch’ induces a similarly protective immune response as a vaccine delivered by needle and syringe, but uses 100 times less vaccine.

According to the scientists, the patch could be used in developing countries where clean needles and refrigeration are scarce.

“The Nanopatch targeted specific antigen presenting cells found in a narrow layer just beneath the skin surface and as a result we used less than one hundredth of dose used by a needle while stimulating a comparable immune response.

“Our result is ten times better than the best results achieved by other delivery methods and does not require the use of other immune stimulants, called adjuvants, or multiple vaccinations.

“Because the Nanopatch requires neither a trained practitioner to administer it nor refrigeration, it has enormous potential cheaply deliver vaccines in developing nations,” lead scientist Professor Mark Kendall said.

According to the scientists, the Nanopatch comprises of several thousands of densely packed projections invisible to the human eye. The influenza vaccine was dry coated onto the projections and applied to skin of mice for two minutes.

“By using far less vaccine we believe that the Nanopatch will enable the vaccination of many more people.

When compared to a needle and syringe a Nanopatch is cheap to produce and it is easy to imagine a situation in which a government might provide vaccinations for a pandemic such as swine flu to be collected from a chemist or sent in the mail.

“This is an exciting discovery and our next step s to prove the effectiveness of Nanopatches in human clinical rials,” Professor Kendall said.

Kimberley footprints causing a stir

Woodside’s proposed $30-billion gas plant on WA’s north-west coast has been fiercely opposed by environmentalists and some Aboriginal groups.

Now palaeontologists have joined in the chorus of opposition.

They say the stretch of Kimberley coastline targeted for the development, is home to some of the world’s best preserved dinosaur footprints.

Before the backpackers arrived and the resorts were built, 130 million years ago enormous dinosaurs, such as the bony Stegosaurus, roamed the area around Broome.

“Estimates on the size of some of these animals range from between 30-40 metres, making them potentially some of the biggest dinosaurs that ever existed.”

Steve Salisbury is a palaeontologist from the University of Queensland.

He says the last remaining evidence of the creatures are fossilised footprints that stretch from Broome to James Price Point, 60 kilometres north.

Their exact location is a closely guarded secret, because the prints are highly prized on the black market, and some of the best have already been drilled out and stolen.

The problem is James Price Point is where Woodside and its four Joint Venture partners are hoping to build an LNG processing precinct, to open up the massive Browse Basin gas reserves.

That’s a big concern for Dr Salisbury.

“Given that the new gas hub is going to occur right in the middle of where they’re known, it’s going to open that area up to potentially more traffic, and potential damage to some of these trackway areas which would be a real shame.”

There is one immediate way in which the footprints could be protected.

The Kimberley is currently being reviewed for National Heritage Listing, but the draft map released last month has left out most of the Peninsula.

A local conservationist, Kerrie Marvell says she can’t understand why.

“The Heritage Council has been made aware that dinosaur footprints actually go all the way up the coast, so I wonder why they’re ignoring that fact seeing that they’re protected.”

Heritage council wants locations

The Heritage Council’s Libby Mattiske says the map is only a draft and the footprints may be included by the time it goes to the Federal Environment Minister Peter Garrett for approval.

“We’re aware that the tracks exist but we do not have specific locations other than Gantheaume Point. For any locals, if anyone does have specific locations then obviously that information would be very valuable to the council members.”

It’s possible that the Heritage Listing of James Price Point could bring an end to plans to build the gas hub there.

Dr Salisbury says it’s a sacrifice worth making.

“If this is the only record we have of those sorts of dinosaurs, not only in Australia but in the world, then protecting these tracks is very important. Because if they’re washed away or even worse, destroyed by development, then that’s it, they’re gone, and you don’t get any other ones.”

Public submissions to the National Heritage Listing review close on May the 14th. A final map will be released at the end of June.

Young Liberal in Obama ‘monkey’ Twitter scandal to be expelled

Brisbane, Apr.16 (ANI): A young Liberals’ member who called Barack Obama a “monkey” on Twitter during the US President’s interview on the ABC will be expelled, says the Queensland Liberal National Party (LNP).

The tweets, from an account belonging to Nick Sowden, a medical student at the University of Queensland, began just after 7.30pm AEST last night, during ABC TV’s 7.30 Report with Kerry O’Brien.

Sowden said his comments were taken out of context. He said it was a joke between friends.

“I think the people follow me know (it’s a joke) and the people who are my friends know and the people on Twitter don’t unfortunately,” he said.

I don’t think Obama is a monkey. You can’t be a monkey and be President of the United States.”

When asked if he’d apologise, he said: “Yes, sure, why not.”

Sowden said he shut down his Twitter account because he didn’t want any more tweets taken out of context.

The LNP held a meeting today to discuss Mr Sowden’s actions and found that he had brought the Party into disrepute.

The party said it “resolves to expel him from the Liberal National Party”. (ANI)

Young Liberals caught up in Obama ‘monkey’ Twitter scandal

Brisbane, Apr.16 (ANI): The Queensland Liberal National Party (LNP) has condemned the action of a member allegedly responsible for calling Barack Obama a “monkey” on Twitter during the US president’s interview on the ABC.

cording to news.com.au, the tweets belonged to Nick Sowden, a medical student at the University of Queensland.

They began just after 7.30 p.m. AEST last night, during ABC TV’s 7.30 Report with Kerry O’Brien.

“I’m not sure why they paid Kerry to fly to America (sic), if they wanted an interview with a monkey surely a ferry to Taronga would have sufficed,” one tweet said, referring to Taronga Zoo on Sydney Harbour.

“If I wanted to see a monkey on TV I’d watch Wildlife Rescue,” said another.

LNP state director Michael O’Dwyer said the party did not tolerate such comments and would be looking into the matter. (ANI)

Mobile phones used to track birds

Queensland scientists have created a new method of tracking cassowaries using mobile phones.

The University of Queensland (UQ) has launched a website where the public can upload photos taken from their mobile phone, as well as the GPS position of the flightless bird.

Senior UQ researcher Dr Hamish Campbell says the information will help scientists record important information about the rare animal.

“There really is an urgent need on ecological data on the birds, in particular looking at where the birds go, when they go there, why do they go there, and what the sort ecological strategies underpin movement patterns,” he said.

“The hope is that with the public’s help we can use this new technology.

“People have been recording identification on cassowaries for a long time but it is really difficult to use that as scientific data.

“We really need hard data, and with the iPhone we can really have a much more rigorous method of ID-ing animals and locations.”

Mobile phones used to track birds

Queensland scientists have created a new method of tracking cassowaries using mobile phones.

The University of Queensland (UQ) has launched a website where the public can upload photos taken from their mobile phone, as well as the GPS position of the flightless bird.

Senior UQ researcher Dr Hamish Campbell says the information will help scientists record important information about the rare animal.

“There really is an urgent need on ecological data on the birds, in particular looking at where the birds go, when they go there, why do they go there, and what the sort ecological strategies underpin movement patterns,” he said.

“The hope is that with the public’s help we can use this new technology.

“People have been recording identification on cassowaries for a long time but it is really difficult to use that as scientific data.

“We really need hard data, and with the iPhone we can really have a much more rigorous method of ID-ing animals and locations.”

Qld agricultural colleges reorganised

The Queensland Government has announced a radical shake-up of the state’s agricultural colleges.

The report will see the number of Agricultural College sites increased from five to 14.

The new facilities will be paid for by the sell-off of much of the college’s existing farmland and some of its infrastructure, expected to raise $17 million.

The report spells the end for the Burdekin campus, south of Townsville in north Queensland, which will accept no new enrolments.

In southern Queensland, the Dalby campus will not be sold but some of its farming land will be.

Primary Industries Minister Tim Mulherin says a training centre will be established at the University of Queensland’s Gatton campus in the Lockyer Valley, west of Brisbane.

“This is about reinvesting the total proceeds, plus an additional $3 million, back into the AACC [Australian Agricultural College Corporation],” he said.

He says there will be no forced redundancies.

Opposition reaction

The Opposition says the plan to sell Agricultural College land and facilities is another part of the Queensland Government’s privatisation push.

Opposition primary industries spokesman Ray Hopper says the State Government has no right to sell what he says are vital parts of the rural economy.

“This is spin … this is the sale of the people’s assets,” he said.

“This was an educational facility for rural Queensland – it’s now gone.”

‘Evil twin of global warming’ threatens world’s oceans

Washington, March 31 (ANI): Scientists have warned that ocean acidification, which is dubbed the ‘evil twin of global warming’, caused by a rise in human emissions of carbon dioxide (CO2), threatens the world’s oceans.

“Ocean conditions are already more extreme than those experienced by marine organisms and ecosystems for millions of years,” researchers said in the latest issue of the journal Trends in Ecology and Evolution (TREE).

“This emphasises the urgent need to adopt policies that drastically reduce CO2 emissions,” they added.

Ocean acidification, which the researchers call the ‘evil twin of global warming’, is caused when the CO2 emitted by human activity, mainly burning fossil fuels, dissolves into the oceans.

It is happening independently of, but in combination with, global warming.

“Evidence gathered by scientists around the world over the last few years suggests that ocean acidification could represent an equal – or perhaps even greater threat – to the biology of our planet than global warming,” said co-author Professor Ove Hoegh-Guldberg of the ARC Centre of Excellence for Coral Reef Studies and The University of Queensland.

More than 30 percent of the CO2 released from burning fossil fuels, cement production, deforestation and other human activities goes straight into the oceans, turning them gradually more acidic.

“The resulting acidification will impact many forms of sea life, especially organisms whose shells or skeletons are made from calcium carbonate, like corals and shellfish. It may interfere with the reproduction of plankton species which are a vital part of the food web on which fish and all other sea life depend,” said Professor Hoegh-Guldberg.

The scientists say there is now persuasive evidence that mass extinctions in past Earth history, like the “Great Dying” of 251 million years ago and another wipeout 55 million years ago, were accompanied by ocean acidification, which may have delivered the deathblow to many species that were unable to cope with it.

According to lead author, Dr. Carles Pelejero, from ICREA and the Marine Science Institute of CSIC in Barcelona, Spain, “These past periods can serve as great lessons of what we can expect in the future, if we continue to push the acidity the ocean even further.”

“Given the impacts we see in the fossil record, there is no question about the need to immediately reduce the rate at which we are emitting carbon dioxide in the atmosphere,” he added. (ANI)

Precious research rediscovered, ‘a breakthrough for Indigenous studies’

A long-lost collection of work by one of Australia’s early anthropologists has been recovered by Queensland researchers in what has been heralded a breakthrough for Aboriginal studies.

Caroline Tennant-Kelly worked in the south-east Queensland Aboriginal settlement at Cherbourg in 1934 and at other settlements in New South Wales in the late 1930s.

Her work was thought to have been lost.

Two University of Queensland researchers who had worked on Native Title had realised its relevance and begun making enquiries about its possible whereabouts.

PhD student Kim de Rijke placed an advertisement in a newspaper in the Kyogle area of northern New South Wales, where Tennant-Kelly died in 1989.

“It was in the end that ad that made a number of people call me – including a cattleman who said he had been waiting for it for 20 years,’ Mr de Rijke said.

Graham Gooding had found Tennant-Kelly’s work in a shed and kept it for two decades because he suspected someone would appear looking for it.

Mr de Rijke says it was a great thrill to locate the collection.

“Although we have only undertaken a preliminiary it is very significant – particularly the Aboriginal ethnography in it,” he said.

“I think the implications of this work are only just becoming evident.”

“It is very signficiant in terms of Aboriginal history but it also contains lots of other aspects as well.”

Mr de Rijke says Tennant-Kelly was an extraordinary woman who had strong views about how people should be treated and spoke out about issues at Cherbourg.

“The white administrators at Cherbourg had very little regard for what motivated … what was important to Aboriginal people.”

“This is a very valuable record about living conditions and how Aboriginal people were treated.”

The collection has been described as a “quantum leap” for Indigenous studies in Australia.

Mr De Rijke says it makes many references to families and their links to the land.

Tennant-Kelly was involved in the theatre in Sydney in the 1920s and became involved in immigration issues during and after the World War in the 1940s.

The collection includes material from those aspects of her life.

The collection will be donated to the University of Queensland’s Fryer Library.

”Presenteeism” – the new workplace problem

Melbourne, Mar 27 (ANI): Presenteeism is emerging as the new workplace scourge, which is eating away at company profits and costing Australian businesses almost 6 billion dollars in lost productivity each year, according to a new study.

The opposite of absenteeism, when workers take sick days for being unwell, presenteeism is when employees continue turning up to work but their productivity and effectiveness is reduced.

Depression, anxiety and other psychological stresses have been found to be the biggest contributors to lost productivity among workers.

In the study, researchers monitored the work productivity of more than 60,000 full-time employees for chronic and acute physical and mental health conditions.

Out of 20 different physical and mental conditions, the research found mental health was the single largest contributor to lost productivity, followed by musculoskeletal problems.

University of Queensland professor of psychiatry and population health Harvey Whiteford, who helped conduct the research, said 9.6 per cent of employees had moderate psychological distress and a further 4.5 per cent had high psychological distress.

He said that the more severe the worker”s mental health issue, the more productivity was lost.

He added that companies should extend their physical examinations of workers to cover mental health as well, and counsel any workers in need to seek professional help.

“A significant number of people respond to short-term face-to-face or telephone counselling when you get to them early,” the Courier Mail quoted him as saying.

The study has been published in the Australia and New Zealand Journal of Psychiatry. (ANI)

First female mining engineering professor appointed at UQ

The University of Queensland (UQ) has appointed its first female lecturer in mining engineering.

Dr Penny Stewart has been a mining engineer for 15 years and recently worked on Brisbane’s Clem Seven tunnel.

She says she has noticed a positive move towards accepting women within the mining industry.

“Since I graduated back in 1995 there’s definitely been a lot of change in the industry and probably how the experience that what women mining engineers have when they join the industry,” she said.

“When I graduated there was still that element of pornography and stuff like that that was around the sites and you know but you don’t see that sort of thing anymore.”

Dr Stewart says students have told her it is refreshing to be taught by a female.

“It’s been a really lovely experience because at the end of one of my first lectures a couple of the female students came up to me afterwards and said it was really nice to have a female lecturer just as a change,” she said.

“It made me realise that up until that point I hadn’t really thought of it as being a big deal.

“But when I realised that it did have an impact on the students it made me feel good you know that they thought it was a good thing.”

Floor price for booze as good as taxes: study

Raising the minimum price for alcohol is as effective as raising taxes at reducing the harm caused by alcohol consumption, according to a study in the UK.

Scotland is considering bringing in a minimum price for alcohol with a series of other measures which the government says will reduce alcohol consumption and save lives.

According to findings of the study by the University of Sheffield’s Robin Purshouse and his colleagues, that may just be right.

Dr Purshouse and his team explored the impact of 18 different pricing policies on changes in alcohol consumption and the associated healthcare costs.

The research, published in medical journal The Lancet, found that alcohol consumption decreased as prices rose.

“General price increases were effective for reduction of consumption, healthcare costs, and health-related quality of life losses in all population subgroups,” the report said.

“Minimum pricing policies can maintain this level of effectiveness for harmful drinkers while reducing effects on consumer spending for moderate drinkers.”

Alcohol consumption is estimated to cost Australia $10.83 billion in lost productivity, health care, road accidents and crime.

‘No argument’

Australian experts say the findings of the study are relevant to Australia.

Wayne Hall of the University of Queensland’s Centre for Clinical Research says there is “no argument” that increasing the price of alcohol reduces consumption.

“That’s the finding of every study that’s ever been done on modelling the effect of raising prices,” he said.

Dr Hall says the new study supports the findings of similar Australian research.

But while most studies have looked at the effect of a “volumetric tax”, which increases with the alcohol content of beverages, another approach is to raise the minimum price.

Dr Hall says the study by Dr Purshouse shows raising the minimum price for alcohol has the roughly equivalent effect of raising taxes.

He says the argument in favour of setting a “floor price” is that it targets those who drink the most.

“The heavier drinkers are typically young adults and they tend to prefer the cheapest beverages available,” he said, adding that some cask wine is cheaper than bottled water.

“So if you were to raise the minimum price and make the cheaper beverages more expensive, you’d have a bigger impact on their consumption than you might if you raised taxes across the board.”

Anti-competitive?

Gino Vambuca of the Australian National Council on Drugs (ANCD), the main advisory body to the Government on drug policy, agrees pricing and taxation is the most effective way to reduce alcohol consumption.

But he says producers who want alcohol treated as any other commodity may regard setting a floor price as an anti-competitive policy.

Australia is awaiting the Government’s response to a review of taxation and a report on preventative health.

“That’s where the opportunity is for us,” Mr Vambuca said.

The ANCD is calling for a volumetric tax, disincentives for products that can have a high potential for harm and incentives for low-alcohol products.

“There should be a bigger price disparity between low-alcohol beer and full-strength beer,” Mr Vambuca said.

He says taxes should be spent on domestic violence shelters, drug and alcohol treatment centres and road trauma wards.

Pretty girls increase risky behaviour in young men

Melbourne, Mar 20 (ANI): Presence of a pretty woman can lead men to throw caution to the wind, says a new University of Queensland research.

To reach the conclusion, Professor Bill von Hippel and doctoral student Richard Ronay, from the university”s School of Psychology examined the links between physical risk-taking in young men and the presence of attractive women at a local skate park, reports The Courier Mail.

“Historically men have competed with each other for access to fertile women and the winners of those competitions are the ones who pass on their genes to future generations. Risk-taking would have been inherent in such a competitive mating strategy,” said Professor von Hippel.

After analyses, it was found that the young male skateboarders took more risks in the presence of an attractive female observer rather than a male spectator.

Saliva was also tested to measure participants”” testosterone levels which showed that risk taking was caused by elevated testosterone levels brought on by the presence of the attractive female.

The expert added: “Our results suggest that displays of physical risk-taking might best be understood as hormonally fuelled advertisements of health and vigour aimed at potential mates, and signals of strength, fitness, and daring intended to intimidate potential rivals.

“Other instances of physical risk taking that contribute to men”s early mortality, such as dangerous driving and physical aggression, might also be influenced by increases in testosterone brought about by the presence of attractive women.”(ANI)

Oz gays want marriage as personal choice

Melbourne, Sep 14 (ANI): While homosexual marriages are not legal everywhere, most of the gays in Australia prefer marriage to other form of relationships, a survey has revealed.

Researchers at the University of Queensland (UQ) conducted a survey of those attracted to the same sex in Australia.

They also found that a huge majority of homosexuals felt marriage should be an option for same-sex couples in Australia.

The survey revealed that the majority (54.1 per cent) of same-sex attracted participants selected marriage as their personal choice and close to 80 per cent felt that same-sex couples in Australia should be allowed to marry if they want to.

Researcher Sharon Dane, from UQ’s School of Psychology, said marriage was still the personal choice of the majority irrespective of the current legal status of participants’ same-sex relationships.

“The findings work to dispel the myth that most same-sex people do not wish to marry or are content with de facto status,” News.com.au quoted Dane as saying.

“This majority preference for marriage may be a reflection of the fact that fewer same-sex couples feel the need to live their lives in secret.

“A generally less hostile environment means same-sex couples can live their lives more openly and honestly and in doing so wish to be treated like everyone else,” she added. (ANI)

Sound recordings can help detect obstructive sleep apnoea

Melbourne, Sept 11 (ANI): Australian scientists have come up with a non-invasive screening tool for detecting obstructive sleep apnoea (OSA).

Snoring is a very early symptom of sleep apnoea, however, monitoring the changes in pitch, frequency and other characteristics of the snores can help detect OSA.

Biomedical engineer and co-researcher Dr Udantha Abeyratne, of the University of Queensland have developed a non-contact method of screening patients suspected of OSA, which could eventually be used at home.

Abeyratne says the device records the sounds of a person’s snoring, which “is a very early symptom of sleep apnea.”

Currently, the only way to diagnose a person with OSA is to have them spend a night at a sleep centre or hospital, hooked up to a machine that monitors their sleep continuously.

“There are very long waiting lists to come into the hospital and get tested,” ABC Online quoted Abeyratne as saying.

He said compared to the traditional method of diagnosing OSA, the sound recordings method is 90pct accurate.

Abeyratne hopes the technology will be available for use in people’s homes in the next three to five years. (ANI)

Smell of freshly cut grass can relieve stress

London, Aug 27 (ANI): Mowing the lawn can help you beat stress, a new study has suggested.

Researchers have found that a chemical released by freshly mowed grass can help people relax and make them cheerful, thus slowing down the decline in mental ability with age.

Scientists claim the scent released from the grass works directly on the brain, specially affecting the emotional and memory parts called the amygdala and the hippocampus.

After seven years of rigorous research, scientists now claim to have made a perfume, the “eau de mow” which “smells like a freshly-cut lawn”, and helps relieve stress and enhance memory.

Dr Nick Lavidis, a neuroscientist at the University of Queensland, Brisbane, developed the idea of the perfume, named Serenascent, after he trekked a US forest twenty years ago.

The Telegraph quoted him as saying: “Three days in Yosemite National Park felt like a three-month holiday.

“I didn’t realise at the time that it was the actual combination of feel-good chemicals released by the pine trees, the lush vegetation and the cut grass that made me feel so relaxed.

“Years later my neighbour commented on the wonderful smell of cut grass after I had mowed the lawn and it all started to click into place.”

Dr Lavidis said the grass’ smell directly affected the brain’s emotional and memory parts.

He said: “These two areas are responsible for the flight or fight response and the endocrine system, which controls the releasing of stress hormones like corticosteroids.

“The new spray appears to regulate these areas.

“There are two types of stress. The first is when you are about to perform something or you know you are going to have to do something well. That’s acute stress and can be a good form of stress.

“Bad stress is chronic stress and is associated with an increase in blood pressure, forgetfulness and a weakening of the immune system.”

Chronic stress can actually damage the hippocampus in the brain, which can lead to memory loss.

Students of the Australian project found animals exposed to Serenascent had little or no damage to the hippocampus.

The scent is believed to have the “pleasant aroma of a freshly-cut lawn or a walk through a lush forest”.

Dr Lavidis, who worked with pharmacologist Professor Rosemary Einstein, said: “It can be used as a room spray or a personal spray on bed linen, a handkerchief or clothing. Down the track we will look at incorporating the feel good chemicals into other products.” (ANI)

Oz boffins question ‘ideal’ sitting posture

Melbourne, Aug 26 (ANI): Australian researchers have questioned the science behind the ‘ideal’ sitting posture.

According to researchers at the University of Queensland’s Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, the posture often recommended as ideal cannot be achieved sans assistance.

In fact, the ‘ideal’ curved lower back posture is not only difficult to achieve in a sitting position, it also takes effort to maintain, reports ABC Online.

Lead researcher Dr Andrew Claus says the belief that slumped postures are worse for spine than upright ones is making assumptions based on limited evidence.

“That’s the thing that we’re starting to redress,” says Claus.

“It may be that slumped postures are uncomfortable for the spine and may cause people some problems, but the science to actually test or prove that is really weak,” he adds.

To reach the conclusion, boffins used sensors attached to the backs of ten male volunteers to monitor the angle of their backs as they imitated pictures and descriptions of various postures. They were later helped to achieve the positions by a physiotherapist.

After analyses, scientists found that men could not achieve the much-recommended curved lower back posture unless hands-on guidance was provided, but were able to adopt the flat back and slump positions without any help.

Claus says that it suggests that if such a posture is the ideal, people must be educated properly on how to achieve it and specially designed chairs are unlikely to be enough.

The study has been published in the journal Manual Therapy. (ANI)

Cleaner fish wear ‘uniforms’ to signal their professions to clients

Washington, August 21 (ANI): A new study has determined that like police and nurses, cleaner fish on coral reefs wear ‘uniforms’, which are basically colors and body patterns, to signal their “professions” – a tactic that also helps the fish avoid being eaten by their clients.

Several species of small reef fish are known to invite larger fish to stop by “cleaning stations,” where the cleaners groom their customers and pick them free of parasites.

The clients swim away spic-and-span, and the cleaners get an easy meal, which is a classic example of a mutually beneficial relationship, according to the researchers.

However, scientists have long wondered how bigger, fish-eating clients find cleaners and apparently recognize that the smaller fish are off the menu.

According to a report in National Geographic News, Karen Cheney and colleagues decided to test the theory that the cleaners’ colors and body patterns are what set the fish apart.

Her team found that cleaner fish, such as gobies and wrasses, are more likely to sport a dark side stripe accentuated by patches of blue and yellow.

“We believe that they do exhibit a ‘cleaner uniform’ in order to make them conspicuous and easy to distinguish on a coral reef,” said Cheney, a biologist at the University of Queensland in Australia.

Cheney and colleagues observed the behavior of several species of wild fish known to visit the cleaners at a site in Australia’s Great Barrier Reef.

The team then added fake fish, which had been painted with a range of colors and patterns, to the reef.

The researchers found that fish painted with blue colors and striped body patterns enticed more clients to pull up to a cleaning station.

The team also used a well-known model for how fish see colors to examine how three types of client fish-barracuda, damselfish, and surgeonfish-were likely to respond to various hues.

Though each fish species has a different kind of visual system, for all of them, blue would contrast most against the colors of coral reefs.

Yellow would best stand out against blue water backdrops and dark lateral stripes, according top the researchers.

This would make a blue-and-yellow striped fish very obvious to clients as they passed by a reef.

Though no one knows for sure, Cheney said her new study implies that the fish’s cleaning behavior evolved before the uniform. (ANI)

Cleaner fish wear ‘uniforms’ to signal their professions to clients

Washington, August 21 (ANI): A new study has determined that like police and nurses, cleaner fish on coral reefs wear ‘uniforms’, which are basically colors and body patterns, to signal their “professions” – a tactic that also helps the fish avoid being eaten by their clients.

Several species of small reef fish are known to invite larger fish to stop by “cleaning stations,” where the cleaners groom their customers and pick them free of parasites.

The clients swim away spic-and-span, and the cleaners get an easy meal, which is a classic example of a mutually beneficial relationship, according to the researchers.

However, scientists have long wondered how bigger, fish-eating clients find cleaners and apparently recognize that the smaller fish are off the menu.

According to a report in National Geographic News, Karen Cheney and colleagues decided to test the theory that the cleaners’ colors and body patterns are what set the fish apart.

Her team found that cleaner fish, such as gobies and wrasses, are more likely to sport a dark side stripe accentuated by patches of blue and yellow.

“We believe that they do exhibit a ‘cleaner uniform’ in order to make them conspicuous and easy to distinguish on a coral reef,” said Cheney, a biologist at the University of Queensland in Australia.

Cheney and colleagues observed the behavior of several species of wild fish known to visit the cleaners at a site in Australia’s Great Barrier Reef.

The team then added fake fish, which had been painted with a range of colors and patterns, to the reef.

The researchers found that fish painted with blue colors and striped body patterns enticed more clients to pull up to a cleaning station.

The team also used a well-known model for how fish see colors to examine how three types of client fish-barracuda, damselfish, and surgeonfish-were likely to respond to various hues.

Though each fish species has a different kind of visual system, for all of them, blue would contrast most against the colors of coral reefs.

Yellow would best stand out against blue water backdrops and dark lateral stripes, according top the researchers.his would make a blue-and-yellow striped fish very obvious to clients as they passed by a reef.

Though no one knows for sure, Cheney said her new study implies that the fish’s cleaning behavior evolved before the uniform. (ANI)