Repeated exposure to dental X-rays ups thyroid cancer risk

London, June 4 (ANI): Repeated exposure to dental X-rays increases thyroid cancer risk, a new study has revealed.

Analysing 313 cancer patients, scientists from Brighton, Cambridge and Kuwait found the chances of developing cancer rose with increasing numbers of dental X-rays.

“The public health and clinical implications of these findings are particularly relevant in the light of increases in the incidence of thyroid cancer in many countries over the past 30 years,” the Telegraph quoted Dr Anjum Memon, of the Brighton and Sussex Medical School, as saying.

However, Dr Memon was quick to add that the increasing use of sensitive diagnostic techniques does not necessarily account for the entire increase and that other causes warrant investigation. (ANI)

Harry Potter’s Quidditch game’s real-life version sweeping US universities

London, May 3 (ANI): Quidditch, a fictional sport developed by J.K. Rowling for the Harry Potter book series, has now been adapted from the book and is being played in reality, minus the flying.

The latest fascination is sweeping students of US universities, with more than 400 teams following the game and the rules as mentioned in the Harry Potter book series, reports The Sun.

Players have to keep to their sticks at all times and are penalised with yellow or red wands for foul play.

But there is no flying like there was in the book. The players remain on the ground.

Universities of UK are also gearing up for the latest fad.

“We”re bringing it home,” 18-year-old Jack Williams, of Cambridge”s fledgling team, said. (ANI)

Now, ‘cuddle hormone’ spray that makes men more caring, affectionate

Washington, Apr 30 (ANI): Women’s prayers have finally been answered: Scientists have developed a spray which can make men sensitive and affectionate using a ”cuddle hormone”.

Forty eight healthy males participated in the experiment. Half received an oxytocin nose spray at the start of the experiment, the other half a placebo. The researchers then showed their test subjects photos of emotionally charged situations in the form of a crying child, a girl hugging her cat, and a grieving man. The test subjects were then invited to express the depth of feeling they experienced for the persons shown.

In summary, Dr. René Hurlemann of Bonn University´s Clinic for Psychiatry was able to state that “significantly higher emotional empathy levels were recorded for the oxytocin group than for the placebo group”, despite the fact that the participants in the placebo group were perfectly able to provide rational interpretations of the facial expressions displayed. The administration of oxytocin simply had the effect of enhancing the ability to experience fellow-feeling. The males under test achieved levels which would normally only be expected in women. Under normal circumstances, the “weak” sex enjoys a clear advantage when it comes to the subject of “empathy”.

In a second experiment, the participants had to use their computers to complete a simple observation test. Correct answers produced an approving face on the screen, wrong ones a disapproving one. Alternatively, the feedback appeared as green (correct) or red (false) circles. “In general, learning was better when the feedback was shown in the form of faces”, states Dr. Keith Kendrick of the Cambridge Babraham Institute in England. “But, once again, the oxytocin group responded clearly better to the feedback in the form of facial expression than did the placebo group”.

In this connection, the so-called amygdaloid nucleus appears to play an important role. This cerebral stucture, known generally to doctors as the amygdala, is involved in the emotional evaluation of situations. Certain people suffer from an extremely rare hereditary disease which progressively affects the amygdala. “We were lucky to be able to include two femals patients in our study group who were suffering this defect of the amygdala”, says Hurlemann. “Both women reacted markedly worse to approving or disapproving faces in the observation test than did other women in a control group. Moreover, their emotional empathy was also affected”. Hence, the researchers suspect that the amygdala could bear some form of co-responsibility for the effect of the oxytin.

One of the effects of the hormone oxytocin, also called as cuddle hormone, is that it triggers labour pains. It also strengthens the emotional bond between a mother and her new-born child. Oxytocin is released on a large scale during an orgasm, too. This neuropeptide is also associated with feelings such as love and trust. Our study has revealed for the first time that emotional empathy is modulated by oxytocin, and that this applies similarly to learning processes with social multipliers, says Hurlemann. (ANI)

Lilly the lonely meerkat finds love on internet!

Melbourne, April 28(ANI): Lilly the lonely meerkat has finally found her Mr Darcy – all thanks to the internet.

Lilly had been living at a theme park in Leicestershire, England, after an initial attempt to pair her with a mate was unsuccessful.

Her owners set up a website, meerkatmatch.com, to find her a partner.

Her profile in the site reads: “Alert, dark-eyed, inquisitive, free-spirited lady with a good sense of humor who enjoys fine dining, digging and cosy nights in!”

The site caught attention of the owners of a sandy-colored young male meerkat, residing in Cambridge.

He has now been shifted to Leicestershire to live with Lilly.

“She is totally obsessed with him. It’s true love. Hopefully soon we will hear the patter of tiny paws,” the Daily Telegraph quoted Sandy Gyorvari, manager at Twinlakes theme park in Melton Mowbray, as saying. (ANI)

Average Brit crawls to bed at 11.41pm

London, Apr 21 (ANI): The average Briton goes to sleep at 11.41pm on weeknights, according to new research.

The new time is almost an hour later than only three years ago, and the blame goes to money worries, long working hours and busy lifestyles, reports The Daily Express.

Professor Anthony Leeds, medical director of Cambridge Weight Plan, which carried out the research, said: “Everyone is so manic these days, that once we have fallen through the front door, had dinner, sorted out the kids and finished watching TV, it’s so late.”

According to the study, when Brits go to bed, 76 per cent of them find it hard to sleep with partners snoring, traffic, nightmares and eating too late causing problems. (ANI)

Goldfish stuns owners after surviving out of water for 7hrs!

London, Mar 26 (ANI): A goldfish left its owners gob-smacked when it managed to survive out of water for seven hours.

Carol Norris had thought 13-year-old fish, named Mr Fish, was dead after finding him floating lifeless at the top of his tank at 7am.

She removed the pet, wrapped him in tissue paper and put him in a dry bath tub – away from the family”s five cats.

Then, Carol, 44, and partner Darren Bradnick, 40, went shopping and returned at 2pm, when she began preparing for Mr Fish’s burial in their garden.

However, she screamed with shock as the pet, still shrouded in tissue, started to flip as she picked him up.

Carol immediately took the pet to the kitchen sink and put some water in it.

And then, the couple watched in amazement as the 6in fish moved his fins.

They left Mr Fish in a bowl and wedged him into an upright position using a glass – but still feared he would die, but to their amazement, it made a full recovery from the ordeal.

The couple”s daughter Ammba, 18, had won Mr Fish at a funfair when just five.

“I screamed when he flipped in my hand. It was quite spooky,” the Sun quoted school catering assistant Carol, of Cambridge, as saying.

Web designer Darren said: “It”s amazing – he”s now swimming in his tank as if nothing happened. It”s lucky Carol didn”t flush him down the loo straight away.” (ANI)

Planck spacecraft obtains first peek of big bang’s ‘afterglow’

London, September 18 (ANI): European Space Agency’s (ESA’s) Planck spacecraft has obtained its first peek at the afterglow of the big bang, revealing it in unprecedented detail.

The ESA spacecraft was launched into space on May 14 this year. It is observing the glow of hot gas from just 380,000 years after the big bang, called the cosmic microwave background (CMB).

According to a report in New Scientist, the detailed properties of this background may contain hints of hidden extra dimensions or multiple universes, as well as providing clues to what caused a brief, early period of incredibly rapid cosmic expansion.

Planck began surveying the microwave background on August 13, a few weeks after reaching its planned perch 1.5 million kilometres from Earth at a point called L2 and cooling its detectors to within 0.1 degrees Celsius above absolute zero.

Now, the Planck team has released the probe’s first image, an observational strip covering about 5 per cent of the sky.

Slight variations in temperature from place to place in the early universe give the image its mottled appearance.

“With a few per cent of the data in, you can see it’s working well and delivering good stuff,” said team member George Efstathiou of the University of Cambridge.

Planck is expected to provide the most detailed all-sky map of the cosmic microwave background yet, improving on the best current map, obtained by NASA’s Wilkinson Microwave Anisotropy Probe (WMAP), which launched in 2001.

Planck’s detectors have more than 10 times the sensitivity of WMAP’s, and about 2.5 times the angular resolution.

“Every strip that Planck scans, we’re getting data that is many, many times more sensitive than WMAP,” Efstathiou told New Scientist.

Although Planck was only designed to observe the sky for 15 months, the team believes it could last for more than 30 months, based on new estimates of how long its coolant will last.

The extra time will allow Planck to measure the radiation with even greater precision, since it will scan the entire sky four times – two more than originally planned. (ANI)

Delay in becoming a mum may be risky

London, September 16 (ANI): Women who have their first baby at an advanced maternal age may be more at risk of complications, says a recent UK study.

The team at the University of Cambridge found women who started menstruation early, from the age of 12 onwards, were more likely to require medical assistance during childbirth such as forceps, or a Caesarean section.

The effect was taken care of if these women began a family at an early age.

But such was not the case for older mothers. Previous research also found that the risk of a medically-assisted delivery shot up with a woman’s age at the time of her first birth.

“The main significance of this study is not that menarche is usefully predictive of the risk of complications, but that the current finding sheds light on why advanced maternal age at the time of first birth might be associated with increased risks,” The BBC quoted Researcher Professor Gordon Smith as saying.

Professor Philip Steer, BJOG editor-in-chief, however, added larger investigation was required before reaching conclusions about the impact of early onset of menstruation in women.

He advised: “It is particularly important for them to ensure they lead healthy lifestyles and maintain a normal body weight, as a high BMI during pregnancy is itself associated with poor uterine contractions and an increased need for operative delivery.”

The University of Cambridge study has been published in BJOG: An International Journal of Obstetrics and Gynaecology. (ANI)

Antarctica’s secret water network far more dynamic than believed

London, September 15 (ANI): The first complete map of the lakes beneath Antarctica’s ice sheets reveals the continent’s secret water network is far more dynamic than we thought, and could be acting as a powerful lubricant beneath glaciers, contributing to sea level rise.

According to a report in New Scientist, Ian Joughin at the University of Washington in Seattle and colleagues developed the map.

Unlike previous lake maps, which are confined to small regions, Joughin and colleagues mapped 124 subglacial lakes across Antarctica using lasers on NASA’s ICESat satellite.

The team also observed the lakes draining and filling.

While interior lakes tended to be static, many coastal lakes changed significantly. Some even appear to be connected by channels under the ice hundreds of kilometres long.

For instance, when upstream lakes under the Recovery glacier drained 3 cubic kilometres of water, lakes downstream gained a similar amount.

Water flowing under glaciers can act as a lubricant, causing land ice to accelerate into the sea and add to rising sea levels.

“The implications for the flow of ice are potentially quite significant,” said Andy Smith of the British Antarctic Survey in Cambridge, UK.

“Those lakes with no clear drainage channels are of particular interest because they could be spreading a thin film of lubricating water under glaciers,” he added. (ANI)

Zia, Yahya and Ayub should be exhumed and hanged like Cromwell: PML-N leader

Karachi, Sep.11 (ANI): Pakistan Muslim League-Nawaz (PML-N) leader Javed Hashmi has said that all dictators including General Ayub Khan, General Yahya Khan and General Zia-ul-Haq should be tried and their bodies should be exhumed and hanged.

Talking to media persons at the Karachi Airport, Hashmi said the autocratic rulers should be treated in the same way the British treated Oliver Cromwell in 1661 to prevent the emergence of any dictator in future.

“The judiciary should try all the people in the country who had violated the constitution,” The Daily Times quoted Hashmi, as saying.

Oliver Cromwell’s, an English military and political leader,body was exhumed from Westminster Abbey, and was subjected to the ritual of a posthumous execution.

Symbolically, this took place on 30 January 1661 the same date that Charles I was executed. His body was hanged in chains at Tyburn. Finally, his disintegrated body was thrown into a pit, while his severed head was displayed on a pole outside Westminster Hall until 1685.

Afterwards the head changed hands several times, including the sale in 1814 to a man named Josiah Henry Wilkinson, before eventually being buried in the grounds of Sidney Sussex College, Cambridge, in 1960.(ANI)

Upminster is UK’s sexiest town

London, Sept 8 (ANI): Upminster is the sexiest town in Britain with residents spending 11 times more on their sex lives than the national average.

Adults in Upminster spend approximately 70.93 pounds a year on their sex lives, reports the Mirror.

The website www.uksexmap.co.uk reveals that Britons spend nearly 315million pounds a year on lingerie, adult toys and sexy gifts.

The top 10 sexiest cities according to the survey were:

1. Upminster

2. Durham

3. Bangor, Co Down

4. Newtownards, Co. Down

5. Norwich

6. Reading

7. Bishop Auckland, Co Durham

8. Lincoln

9. Cambridge

10. Bristol (ANI)

Europe’s first farmers were migrants who settled about 7,500 years ago

Washington, September 4 (ANI): The analysis of ancient DNA from skeletons suggests that Europe’s first farmers were not the descendants of Stone Age hunter-gatherers in the region, but were probably migrants who came into major areas of central and eastern Europe about 7,500 years ago, bringing domesticated plants and animals with them.

The research involved the analysis of DNA from hunter-gatherer and early farmer burials, and compared those to each other and to the DNA of modern Europeans.

They conclude that there is little evidence of a direct genetic link between the hunter-gatherers and the early farmers, and 82 percent of the types of mtDNA found in the hunter-gatherers are relatively rare in central Europeans today.

The team from Mainz University in Germany, together with researchers from UCL (University College London) and Cambridge, found that the first farmers in central and northern Europe could not have been the descendents of the hunter-gatherers that came before them.

Humans arrived in Europe 45,000 years ago and replaced the Neandertals. From that period on, European hunter-gatherers experienced lots of climatic changes, including the last Ice Age.

After the end of the Ice Age, some 11,000 years ago, the hunter-gatherer lifestyle survived for a couple of thousand years but was then gradually replaced by agriculture.

The question was whether this change in lifestyle from hunter-gatherer to farmer was brought to Europe by new people, or whether only the idea of farming spread.

The new results from the Mainz-led team seem to solve much of this long-standing debate.

“Our analysis shows that there is no direct continuity between hunter-gatherers and farmers in Central Europe,” said Prof Joachim Burger. “As the hunter-gatherers were there first, the farmers must have immigrated into the area,” he added.

The study identifies the Carpathian Basin as the origin for early Central European farmers.

“It seems that farmers of the Linearbandkeramik culture immigrated from what is modern day Hungary around 7,500 years ago into Central Europe, initially without mixing with local hunter gatherers,” said Barbara Bramanti, first author of the study.

The new study confirms what Joachim Burger’s team showed in 2005; that the first farmers were not the direct ancestors of modern European.

According to Burger, “We are still searching for those remaining components of modern European ancestry. European hunter-gatherers and early farmers alone are not enough. But new ancient DNA data from later periods in European prehistory may shed also light on this in the future.” (ANI)

Andromeda galaxy expanded by cannibalizing on stars from other galaxies

London, September 3 (ANI): A new research has shown that the vast Andromeda galaxy appears to have expanded by cannibalizing on stars from other galaxies.

According to a report by BBC News, when an international team of scientists mapped Andromeda, they discovered stars that they said were “remnants of dwarf galaxies”.

This consumption of stars has been suggested previously, but the team’s ultra-deep survey has provided detailed images to show that it took place.

This shows the “hierarchical model” of galaxy formation in action.

The model predicts that large galaxies should be surrounded by relics of smaller galaxies they have consumed.

The scientists charted the outskirts of Andromeda in detail for the first time. They discovered stars that could not have formed within the galaxy itself.

Pauline Barmby, an astronomer from the University of Western Ontario told BBC News that the pattern of the stars’ orbits revealed their origin.

“Andromeda is so close that we can map out all the stars,” she said. “And when you see a sort of lump of stars that far out, and with the same orbit, you know they can’t have been there forever,” she added.

Andromeda, which is approximately 2.5 million light years away from Earth is still expanding, say the scientists.

The researchers also saw a “stream of stars” of a nearby galaxy called Triangulum “stretching” towards Andromeda.

According to Dr Scott Chapman, reader in astrophysics at the Institute of Astronomy, University of Cambridge, “Ultimately, these two galaxies may end up merging completely. Ironically, galaxy formation and galaxy destruction seem to go hand in hand.”

Nickolay Gnedin, an astrophysicist from the University of Chicago, described the work as showing “galactic archaeology in action”. (ANI)

Pak announces governing body of Baba Guru Nanak International University

Amritsar. Aug.28 (ANI): In a step to give shape to a proposed Baba Guru Nanak International University (BGNIU) the Government of Pakistan has announced the name of its members of the governing committee for project management unit on Friday.

The first meeting of the governing committee is likely to be held in Islamabad in September this year. The Chairman of the PETPB would head the Committee.

The then Pakistan’s Prime Minister Shaukat Aziz assured a delegation of the Sikh Diaspora headed by Dr. Pritpal Singh, convener American Gurdwara Parbhandhak Committee (AGPC), to set up set up a university on Sikh religion and culture at Nankana Sahib, the birthplace of Guru Nanak.

Besides the chairman of PETPB, Mian Imran Masood as a executive director, Zafer Saeed Padhiar, MNA, Rai Shah Jehan Bhatti, MPA, President PSGPC, Dr. Pritpal Singh, USA, Manmohan Singh, UK, Azhar Ehsan Advocate, Tahir Azam, Faqir Syed Saif Uddin, Sham Singh Former president PSGPC, Bishan Singh and Mastan Singh are the members of the committee.

In 2007, in a meeting with heads of the various Sikhs organizations, including Avtar Singh Makkar, president of SGPC, PS Sarna the president of Delhi Sikh Gurdwara Managemnet Committee (DGGMC) and Bishan Singh President of Pakistan Sikh Gurdwara Parbandhak Committee were asured by PETPB Chairman that the proposed university would have the best architecture, curricula and research center on Sikh and other religion and culture.

It is pertinent to mention that none of the members was taken from India, neither from the SGPC, the premier body of the Sikhs or from DSGMC. However, DSGMC chief Sarna said: “I am happy that the work is on progress to build the University and it makes no difference to me whether they have not gave any representation in the committee.”

He said that whatever duties they give us we will do voluntarily.

Makkar registered his anguish and said that it is unfortunate that PETPB has not given any representation to the SGPC in the governing body.

He said that the SGPC not only represents Sikhs living in India, but also embodies all Sikhs living around the world and that includes Pakistan. He said that without the representation of the SGPC the governing committee could not be called a complete body.

According to sources, the university would be constructed in 2500 acres of land in Nankana Sahib. The foundation stone of the university would be laid in the month of September or November this year.

Talking to ANI, Dr. Pritpal Singh said that the AGPC would bear all the expenses occur on establishing the course related to Gurmat Sangeet facility.

He said that we would invite scholars from all over the world to join the university. It will be planned University that to be modelled on the great universities of Oxford and Cambridge and te University will allow to get Admissions for the Students of all over the world. By Ravinder Singh Robin (ANI)

Scientists discover deadly plant that eats rats

London, August 18 (ANI): British scientists have discovered a deadly plant that eats rats, and is believed to be the largest meat-eating shrub.

According to a report in The Sun, the giant pitcher plant lures rodents into its slipper-shaped mouth and dissolves them with acid-like enzymes.

Scientists, led by botanists Stewart McPherson and Alastair Robinson, tracked it down on Mount Victoria in the Philippines after hearing that missionaries had seen “whole rats” being eaten.

“The plant produces spectacular traps which catch not only insects, but also rodents. It is remarkable that it remained undiscovered until the 21st century,” said McPherson, of Poole, Dorset.

The research team named the incredibly rare species after legendary wildlife broadcaster Sir David Attenborough.

“My team and I named it in honour of Sir David whose work has inspired generations toward a better understanding of the beauty and diversity of the natural world,” said McPherson.

“I was contacted by the team shortly after the discovery and they asked if they could name it after me. I was delighted and told them, ‘Thank you very much’,” said Sir David.

“I’m absolutely flattered. This is a remarkable species the largest of its kind. I’m told it can catch rats then eat them with its digestive enzymes. It’s certainly capable of that,” he added.

The plant, now dubbed Nepenthes attenboroughii, is green and red and can grow a stem more than 4ft long. It is found only in the scrub high on the windswept slopes of Mount Victoria.

McPherson and former Cambridge University botanist Robinson made their discovery during an expedition in 2007.

But, they have only just described the killer shrub in a journal after a three-year study of all 120 species of pitcher plant. (ANI)

Stephen William Hawking | President Obama Honored | Presidential Medal of Freedom | Nation’s Highest Civilian Honor | British Theoretical Physicist

Stephen William Hawking | President Obama Honored | Presidential Medal of Freedom | Nation’s Highest Civilian Honor | British Theoretical Physicist

Stephen William Hawking, CH, CBE, FRS, FRSA ,born on 8th January 1942, is a British theoretical physicist. Hawking is the Lucasian Professor of Mathematics at the University of Cambridge (but intends to retire from this post in 2009), a Fellow of Gonville and Caius College, Cambridge and the distinguished research chair at Waterloo’s Perimeter Institute for Theoretical Physics.

He is known for his contributions to the fields of cosmology and quantum gravity, especially in the context of black holes. He has achieved most of his success with works of popular science in which he discusses his own theories and cosmology in general; these include the runaway best seller A Brief History of Time, which stayed on the British Sunday Times bestsellers list for a record-breaking 237 weeks.

Hawking has a neuro muscular dystrophy that is related to amyotrophic lateral sclerosis (ALS), a condition that has progressed over the years and has left him almost completely paralysed.

Hawking’s key scientific works to date have included providing, with Roger Penrose, theorems regarding singularities in the framework of general relativity, and the theoretical prediction that black holes should emit radiation, which is today known as Hawking radiation (or sometimes as Bekenstein-Hawking radiation).

He is a world-renowned theoretical physicist whose scientific career spans over 40 years. His books and public appearances have made him an academic celebrity. He is an Honorary Fellow of the Royal Society of Arts, and a lifetime member of the Pontifical Academy of Science.

On August 12, 2009, President Obama honored on Wednesday with the Presidential Medal of Freedom, the nation’s highest civilian honor to Stephen William Hawking.

High-fat diets ‘make us lazy, forgetful’

Washington, Aug 13 (ANI): Eating hotdogs and French fries might be a great treat, however, these high fat diets can significantly reduce our exercising ability and lead to short term memory loss, reveals a new study.

The research conducted using mouse model showed that in less than 10 days of eating a high-fat diet, rats had a decreased ability to exercise and experienced significant short-term memory loss.

“Western diets are typically high in fat and are associated with long-term complications, such as obesity, diabetes, and heart failure, yet the short-term consequences of such diets have been given relatively little attention,” said Andrew Murray, co-author of the study and currently at the University of Cambridge in the United Kingdom.

“We hope that the findings of our study will help people to think seriously about reducing the fat content of their daily food intake to the immediate benefit of their general health, well-being, and alertness,” he added.

Study leader Murray fed rats with low-fat diet (7.5 percent of calories as fat) and high-fat diet (55 percent of calories as fat).

He discovered that the muscles of the rats eating the high-fat diet for four days were less able to use oxygen to make the energy needed to exercise, causing their hearts to worker harder-and increase in size.

After nine days on a high-fat diet, the rats took longer to complete a maze and made more mistakes in the process than their low-fat-diet counterparts.

The researchers also studied the cellular causes of these problems, particularly in the mitochondria of muscle cells.

They found increased levels of a protein called uncoupling protein 3, which made them less efficient at using oxygen needed to make the energy required for running.

The new research is published online in The FASEB Journal. (ANI)

Salt-tolerant crops come a step closer to reality

Washington, July 8 (ANI): An international team of scientists has developed salt-tolerant plants using a new type of genetic modification (GM), bringing salt-tolerant cereal crops a step closer to reality.

The research team, based at the University of Adelaide’s Waite Campus in Australia, has used a new GM technique to contain salt in parts of the plant where it does less damage.

Salinity affects agriculture worldwide, which means the results of this research could impact on world food production and security.

The work has been led by researchers from the Australian Centre for Plant Functional Genomics and the University of Adelaide’s School of Agriculture, Food and Wine, in collaboration with scientists from the Department of Plant Sciences at the University of Cambridge, UK.

According to Professor Tester, his team used the technique to keep salt – as sodium ions (Na+) – out of the leaves of a model plant species.

“Salinity affects the growth of plants worldwide, particularly in irrigated land where one third of the world’s food is produced. And it is a problem that is only going to get worse, as pressure to use less water increases and quality of water decreases,” said the team’s leader, Professor Mark Tester, from the School of Agriculture, Food and Wine at the University of Adelaide and the Australian Centre for Plant Functional Genomics (ACPFG).

“Helping plants to withstand this salty onslaught will have a significant impact on world food production,” he added.

The researchers modified genes specifically around the plant’s water conducting pipes (xylem) so that salt is removed from the transpiration stream before it gets to the shoot.

“This reduces the amount of toxic Na+ building up in the shoot and so increases the plant’s tolerance to salinity,” Professor Tester said.

“In doing this, we’ve enhanced a process used naturally by plants to minimize the movement of Na+ to the shoot. We’ve used genetic modification to amplify the process, helping plants to do what they already do – but to do it much better,” he added.

The team is now in the process of transferring this technology to crops such as rice, wheat and barley.

“Our results in rice already look very promising,” Professor Tester said. (ANI)

Remains of 11th Century dog found during archaeological dig in England

London, July 8 (ANI): An archaeological dig at the heart of Cambridge University, UK, has revealed Roman pottery, medieval remains and 11th Century dog bones.

According to a report by BBC News, the dig has been taking place beneath a tearoom in the university’s central offices, known as the Old Schools.

It was one of the events marking the 800th anniversary of the university.

Some material pre-dates its foundation in 1209 by over 150 years, and is said to be the first evidence the area was occupied by an Anglo-Saxon community.

Archaeologists have unearthed several animal bones, boundary markings and signs of quarrying, which a spokesman said suggested that in the final decades of the Saxon era, the foundations of Cambridge were being laid.

“The site has enabled us to prove what we previously had no proof for – that by the time of the Norman Conquest there was a thriving settlement in the middle of Cambridge,” said Richard Newman of the Cambridge Archaeological Unit.

The dig has reached what would have been ground level in ancient times, even before the Saxons arrived.

“In Anglo-Saxon times, a cluster of domestic properties began to emerge, and the dog, which appears to date back to that period, would have been a valuable ally for the family that owned it,” said Newman.

“It would have been a working animal,” he added.

“A dog would also have given people security, it was useful when it came to protecting your possessions and it was cheaper than a lock,” he explained. (ANI)

Earliest land vertebrates were more diverse than earlier believed

Washington, July 7 (ANI): A new study of ancient fossils has determined that the earliest land vertebrates, also known as tetrapods, were more diverse than we could possibly imagine.

The study was done by Jennifer Clack, a paleontologist at the University of Cambridge, who has studied the fossils of these extinct creatures for more than two decades.

Long before mammals, birds, and even dinosaurs roamed the Earth, the first four-legged creatures made their first steps onto land, and quickly inhabited a wide range of terrestrial environments.

“These early land vertebrates varied considerably in size and shape,” said Clack.

To understand the anatomical changes that accompanied this diversity, Clack teamed up with two biologists who work on living fishes – Charles Kimmel of the University of Oregon, and Brian Sidlauskas of the National Evolutionary Synthesis Center in North Carolina.

The researchers focused on 35 early tetrapods that lived between 385 and 275 million years ago.

As a proxy for body size and shape, they examined the dimensions of a number of bones in a region of the skull known as the palate.

By tracing changes in the length and width of interlocking bones in this part of the skull, the researchers hoped to get a more fine-grained picture of skeleton evolution as a whole.

“I tend to think the genetic instructions for making a skeleton come from how you make individual bones first, and then how you fit those bones together as a refinement of that,” said developmental biologist Charles Kimmel.

When they mapped the changes in bone length and width onto the tetrapod family tree, the researchers discovered that not all bones changed size at the same rate or in the same direction.

This phenomenon can result in an overall reshaping from one lineage to the next, explained Sidlauskas.

“Sometimes a change in size can have indirect consequences for the shape of the animal. When different parts of an animal’s body change size at different rates over evolutionary time, that can generate changes in body shape from one species to another,” he added.

Moreover, some changes are consistent with an evolutionary quirk known as paedomorphosis, in which species retain in adulthood the youthful dimensions that their ancestors had as juveniles.

“Paedomorphosis is definitely there – the descendents of some groups are retaining the proportions that their juveniles had in the past,” said Clack.

These results not only help explain why early tetrapods were so diverse in size and shape, but also shed light on an important chapter in the evolution of life on land – the transition from fish to amphibians. (ANI)