Short sleep ‘ups death risk’, long sleep ‘indicates serious illness’

Washington, May 5 (ANI): People who sleep for less than six hours each night are 12 percent more likely to die prematurely than those who get the recommended 6-8 hours, a new study has found.

What’s more, the research carried out by the University of Warwick in collaboration with the Federico II University Medical School in Naples, Italy, claimed that consistent over long sleeping (over 9 hours a night) can be a cause for concern. While, unlike short sleeping, over long sleeping does not in itself increase the risk of death, it can be a significant marker of an underlying serious and potentially fatal illnesses.

The study has been published in the journal Sleep.

To reach the conclusion, boffins looked at the relationship between the level of habitual duration of sleep and mortality by reviewing 16 prospective studies from the UK, USA, European and East Asian countries. The study included more than 1.3 million participants, followed up for up to 25 years, with more than 100,000 deaths recorded.

The study provides unequivocal evidence of the direct link between both short (less than 6 hours sleep a night) and long (9 hours or more) duration of sleep and an increased chance of dying prematurely, compared to those who sleep 6-8 hours a night on average.

Professor Francesco Cappuccio, leader of the Sleep, Health and Society Programme at the University of Warwick and Consultant Physician at the University Hospitals Coventry and Warwickshire NHS Trust, said “whilst short sleep may represent a cause of ill-health, long sleep is believed to represent more an indicator of ill-health”.

He said: “Modern society has seen a gradual reduction in the average amount of sleep people take, and this pattern is more common amongst full-time workers, suggesting that it may be due to societal pressures for longer working hours and more shift-work. On the other hand, the deterioration of our health status is often accompanied by an extension of our sleeping time.”

“Consistently sleeping 6 to 8 hours per night may be optimal for health. The duration of sleep should be regarded as an additional behavioural risk factor, or risk marker, influenced by the environment and possibly amenable to change through both education and counselling as well as through measures of public health aimed at favourable modifications of the physical and working environments “ Professor Cappuccio added. (ANI)

Medical poetry contest winner to get £15K prize

London, Mar 24 (ANI): Write poems on medicine and win prizes worth 15,000 pounds—a new international competition is offering just that for the winner of best medical poetry.

The competition, organised to celebrate the healing power of words, has short-listed six finalists from more than 1,600 entries from 31 countries.

The winners of the Hippocrates Prize will be announced at a symposium on Poetry and Medicine on 10 April, at the University of Warwick, which has put up the prize money.

The competition attracted entries from professional poets including Pauline Stainer, the author of nine collections of poetry, C K Stead, a distinguished writer, and Sian Hughes, whose first book of poems appeared last year—they are finalists in the “open” category.

The Hippocrates Prize is also offered in an NHS category open to National Health Service-related employees and health students.

The shortlisted candidates in this category are Wendy French, who runs creative writing classes in the NHS and has published two collections of poetry, Alex Josephy, an educationist working with NHS doctors, and Edward Picot, who manages a GP practice.

Judges include Dannie Abse, the poet, James Naughtie, the BBC Radio 4 Today presenter, and Professor Sir Bruce Keogh, the NHS medical director.

“These poems were exhilarating to read. It was very moving to sense the struggles which have to be kept private but can be allowed to show through in poetry. And in the general poetry, there were some powerful poems, with a lot of energy under the bonnet,” the Independent quoted James Naughtie as saying.

Fiona Sampson, editor of Poetry Review, welcomed the competition, saying: “Traditionally poetry speaks to big moments in your life so it is quite natural for people to turn to it when thinking about illness, whether they are patients or medical professionals.”

“The fact that this competition has elicited poems from major poets with international reputations – poets who wouldn”t normally enter a poetry prize – tells us something about the importance of the relationship between poetry and medicine,” she added.

The winning poems, together with 20 commended poems in each category, are to be published in a book. (ANI)

Happiness lies in earning more than peers!

Washington, March 23 (ANI): The secret to happiness lies in earning more money than your peers, according to a new study.

Christopher Boyce, from the Department of Psychology at the University of Warwick in England, suggests that it does not matter how much wealth people make as long as they are doing better financially than their fellow mates.

We tend to be happy “as long as we”ve got more than the people around us,” Live Science quoted him as saying.

It apparently takes from the concept of “doing better than the Joneses,” which is common among children. For example, a toy gets ditched as soon as a shinier toy in the hands of another child is spotted.

Boyce insists it holds true for adults as well.

He added: “You might buy a new car. But if your neighbor has just bought the very same car, that new car doesn”t seem as good as it once was if you were the only one to have that car.”

The researchers studied the British Household Panel Survey data between 1997 and 2004, in which more than 80,000 participants rated how dissatisfied or satisfied overall.

They compared the subjects” income with various reference groups, including geographical region, gender and education, and age.

It was found that a person”s life satisfaction was primarily linked to the income position within each peer group.

The researchers cited the results to explain why when national economies grow, average happiness levels do not necessarily increase.

Boyce said: “It”s about having more than everyone else, which is why our nations are not increasing in happiness on average.

“Our study underlines concerns regarding the pursuit of economic growth. There are fixed amounts of rank in society – only one individual can be the highest earner.

“Thus, pursuing economic growth, although it remains a key political goal, might not make people any happier.”

The study has been published in a recent online edition of the journal Psychological Science. (ANI)

Happiness lies in earning more than peers!

Washington, March 20 (ANI): The secret to happiness lies in earning more money than your peers, according to a new study.

Christopher Boyce, from the Department of Psychology at the University of Warwick in England, suggests that it does not matter how much wealth people make as long as they are doing better financially than their fellow mates.

We tend to be happy “as long as we”ve got more than the people around us,” Live Science quoted him as saying.

It apparently takes from the concept of “doing better than the Joneses,” which is common among children. For example, a toy gets ditched as soon as a shinier toy in the hands of another child is spotted.

Boyce insists it holds true for adults as well.

He added: “You might buy a new car. But if your neighbor has just bought the very same car, that new car doesn”t seem as good as it once was if you were the only one to have that car.”

The researchers studied the British Household Panel Survey data between 1997 and 2004, in which more than 80,000 participants rated how dissatisfied or satisfied overall.

They compared the subjects” income with various reference groups, including geographical region, gender and education, and age.

It was found that a person”s life satisfaction was primarily linked to the income position within each peer group.

The researchers cited the results to explain why when national economies grow, average happiness levels do not necessarily increase.

Boyce said: “It”s about having more than everyone else, which is why our nations are not increasing in happiness on average.

“Our study underlines concerns regarding the pursuit of economic growth. There are fixed amounts of rank in society – only one individual can be the highest earner.

“Thus, pursuing economic growth, although it remains a key political goal, might not make people any happier.”

The study has been published in a recent online edition of the journal Psychological Science. (ANI)

Milky Way’s fastest stars circle each other at 500 kms a second

Washington, March 13 (ANI): Astronomers have confirmed that two extremely dense stars in an intimate dance are spinning around each other in just 5.4 minutes at about 500 kilometers a second, making them the fastest known stellar partners in the galaxy.

The whirling duo, known as HM Cancri, also has the tightest orbit of any known “binary” star system.

Both stars are white dwarfs—the dense, white-hot remnants left behind when sunlike stars die.

The stellar corpses are separated by no more than three times the width of Earth.

In such tight quarters, hot gases flow between the two stars, releasing huge amounts of energy.

“This is the most extreme example of one of these double white dwarf systems we have so far,” study co-author Danny Steeghs of the University of Warwick in the UK, told National Geographic News.

Study leader Gijs Roelofs, of the Harvard-Smithsonian Center for Astrophysics, was part of the team that first detected periodic x-ray emissions from HM Cancri in 1999.

Initial observations had suggested a 5.4-minute orbit, but the researchers weren’t sure if the pulses of light were coming from two circling stars or one superfast spinner.

To confirm the stars’ dizzying tango, Roelofs and colleagues turned to the world’s second largest optical telescope, at the W. M. Keck Observatory in Hawaii, where they measured “wobbles” in the system’s brightness.

“The amplitude of the wobble gives you an idea of the orbit period and the masses” of the stars, co-author Steeghs said.

What’s more, light emissions from the stars were found to be moving in opposite directions, as such emissions would for two orbiting bodies, cinching the case for a binary system.

HM Cancri’s record-breaking orbit couldn”t get much quicker, Steeghs added, since the stars would merge if they got any closer, triggering a massive explosion known as a type Ia supernova.

“Overall, three minutes would be the fastest a binary white dwarf system could get,” he said. (ANI)

Lack of sleep puts women at higher disease risk than men

Washington, July 2 (ANI): Lack of sleep raises a woman’s risk of heart disease more than it does for a man, according to a new study.

Sleeping less than the recommended eight hours a night has been linked to a raised risk of heart problems.

The study, conducted by the University of Warwick and University College London, has revealed that levels of inflammatory markers vary significantly with sleep duration in women, but not men.

The researchers found that levels of Interleukin-6 (IL-6), a marker related to coronary heart disease, were significantly lower in women who reported sleeping eight hours as compared with 7hours.

A second marker, High-sensitivity C-reactive protein (hs-CRP), is predictive of future cardiovascular morbidity. Levels of hs-CRP were significantly higher in women who reported sleeping five hours or less.

Study’s lead author Michelle Miller, Associate Professor of Biochemical Medicine at Warwick Medical School, said that short-term sleep deprivation studies have shown that inflammatory markers are elevated in sleep-deprived individuals, suggesting that inflammatory mechanisms may play a role in the cardiovascular risk associated with sleep deprivation.

“Our study may provide some insight into a potential mechanism for the observation in previous studies which indicates an increased risk of death from cardiovascular disease in individuals who have less than five hours sleep per night and increased risk of non-cardiovascular death in long sleepers,” she said.

The study involved more than 4,600 white participants from the University College London-based Whitehall II cohort study; 73 percent were men.

The study has been published in the American journal SLEEP. (ANI)

Being careful about the future is in our genes

Washington, May 28 (ANI): Humans are genetically programmed to care about the long-term future, say researchers.

Lead researcher Dr Peter Sozou, of the University of Warwick’s Medical School and the London School of Economics and Political Science, revealed that individuals might have an innate tendency to care about the long-term future of their communities, over timescales much longer than an individual’s lifespan.

He said we care at all about the long-term future because we have evolved to value social benefits because in our ancestral environment they tended to deliver local benefits – helping our kin to survive.

However in the modern age, it is this biological preference for social good which gives us an interest in the future of the planet.

“In the modern, global environment, such preferences may cause people to care about global problems such as climate change,” he added

Using a mathematical model, the researchers sought to determine what weight individuals should attach to future benefits.

It is shown that the answer depends on whether the future benefits are social benefits for their community or private benefits for themselves.

The study revealed that individuals could take a long-term view of benefits for their community, but a more short-term view of private benefits to themselves.

Humans, generally value a reward today more highly than a reward tomorrow – in other words they discount future benefits.

However, the model shows that the discount rate is lower for social, rather than individual, benefits.

“This analysis shows that the social discount rate is generally lower than the private discount rate,” said Dr Sozou.

“An individual’s valuation of a future benefit to herself is governed by the probability that she will still be alive in future.

“But she may value future benefits to her community over a timescale considerably longer than her own lifespan,” he added.

According to Sozou, evolution is driven by competition. Caring about the future of your community makes evolutionary sense to the extent that future members of your community are likely to be your relatives.

The findings are published in the Proceedings of the Royal Society B. (ANI)

More sunlight may cut older people’s heart disease, diabetes risk

Washington, May 12 (ANI): Older people can reduce their risk of developing heart disease and diabetes by spending more time in the sunshine, a new study has suggested.

Sunlight boosts vitamin D in the skin and older people are more likely to have a vitamin D deficiency due to the natural aging process and changes in lifestyle.

In the new study, researchers at the University of Warwick have shown vitamin D deficiency is significantly associated with metabolic syndrome, a combination of medical and metabolic disorders that increase the risk of developing cardiovascular disease and diabetes.

For the study, a research team, led by Dr Oscar Franco at Warwick Medical School, studied the association between vitamin D levels in the blood and the prevalence of metabolic syndrome in 3,262 people aged 50-70 years old in China.

Franco and colleagues found a high correlation between low vitamin D levels and the prevalence of metabolic syndrome.

They found 94 percent of people in the study had a vitamin D (25-hydroxyvitamin D) deficiency or insufficiency. The results showed 42.3 percent of these people also had metabolic syndrome.

Franco said there were many factors which could explain why older people had less vitamin D in their blood, including changes in lifestyle factors such as clothing and outdoor activity.

“As we get older our skin is less efficient at forming vitamin D and our diet may also become less varied, with a lower natural vitamin D content. Most importantly, however, the dermal production of vitamin D following a standard exposure to UVB light decreases with age because of atrophic skin changes. When we are older we may need to spend more time outdoors to stimulate the same levels of vitamin D we had when we were younger,” he said.

The study is published in Diabetes Care journal. (ANI)

Bullied kids likely to develop psychotic symptoms in early adolescence

Washington, May 05 (ANI): A new study has found that kids who are consistently bullied by peers are more likely to develop psychotic symptoms in early adolescence.

For the study, Andrea Schreier, Ph.D., of Warwick Medical School, University of Warwick, Coventry, England, and colleagues examined 6,437 individuals in early adolescence (average age 12.9) who were part of the Avon Longitudinal Study of Parents and Children (ALSPAC).

Parents had completed regular mailed questionnaires about their child’s health and development since birth, and the children underwent yearly physical and psychological assessments from age 7.

At each visit, trained interviewers rated the children on whether they had experienced psychotic symptoms (hallucinations, delusions or thought disorders) during the previous six months.

Children, parents and teachers reported on whether the child had experienced peer victimization, defined as negative actions by one of more other students with the intention to hurt.

A total of 46.2 percent of participants were categorized as victims and 53.8 percent were not victimized at either ages 8 or 10. At follow-up, 13.7 percent had broad psychosis-like symptoms, 11.5 percent had intermediate symptoms and 5.6 percent had narrow symptoms.

The results showed that the risk of psychotic symptoms was approximately doubled among children who were victims of bullying at age 8 or 10, independent of other psychiatric illness, family adversity or the child’s IQ. The association was stronger when victimization was chronic or severe.

“A major implication is that chronic or severe peer victimization has non-trivial, adverse, long-term consequences. Reduction of peer victimization and of the resulting stress caused to victims could be a worthwhile target for prevention and early intervention efforts for common mental health problems and psychosis,” the authors said.

The study has been published in the May issue of Archives of General Psychiatry, one of the JAMA/Archives journals. (ANI)

Bullying can literally drive kids mad

London, May 1 (ANI): Bullying increases the risk of psychotic symptoms by the age of adolescence up to four times, a new study has found.

Children’s symptoms included hallucinations, paranoid delusions such as believing they are being spied on, and irrational thoughts.

To reach the conclusion, psychologists followed 6,437 children from birth to 13 years.

The kids took part in annual face-to-face interviews, as well as psychological and physical tests. Also parents were asked to complete questionnaires about their sons’ and daughters’ development.

By the time the kids turned 13, they were interviewed about their experiences of psychotic symptoms in the previous six months.

From analysis, researchers found children who suffered physical or emotional bullying were twice as likely to develop psychotic symptoms by early adolescence as children who were not bullied, reports The Mirror.

However, if they experienced sustained bullying over a number of years they could be four times more at risk.

Study leader Professor Dieter Wolke, from the University of Warwick, said: “Our research shows that being victimised can have serious effects on altering perception of the world, such as hallucinations, delusions or bizarre thoughts where the person’s insight into why this is happening is reduced.

“This indicates that adverse social relationships with peers is a potent risk factor for developing psychotic symptoms in adolescence and may increase the risk of developing psychosis in adulthood.”

The researchers used data from the Avon Longitudinal Study of Parents And Children (ALSPAC). (ANI)

Job Promotion Is Harmful For You, Say British Researchers

Everyone working in this world wants promotion i.e. higher position in his/her field.

But a study conducted by British scientists disclosed that job promotion can be risky for one’s health, and leave them substantially less time to visit their physician.

Economics and psychology scientists at the University of Warwick in central England discovered that promotion on average produces 10% more strain, and leaves up to 20% less time to visit the doctor in the event of sickness.

The researchers examined the assumption that an improvement in job position results in better health because of an increased sense of confidence.

While analysing data collected in Britain involving 1000 individual promotions, from 1991 to 2005, they found no proof of improved physical health after promotion.

However, those who were promoted to higher ranks had a significantly greater mental strain.

Moreover, there was on average a 10% decrease in people’s mental health after a job promotion.

Researcher Chris Boyce stated, “Getting a promotion at work is not as great as many people think. Our research finds that the mental health of managers typically deteriorates after a job promotion, and in a way that goes beyond merely a short-term change.”

“There are no indications of any health improvements for promoted people other than reduced attendance at GP (General Practitioner) surgeries, which may itself be something to worry about rather than celebrate.”

Job promotion can be bad for mental health

Washington, Apr 10 (ANI): Getting a promotion in job can be bad for health, suggests a new study.

The research led by researchers at the University of Warwick has found that job promotion on average produces 10pct more mental strain.

It has long been believed that improvement to a person’s job status, through a promotion, will directly result in better health due to an increased sense of life control and self-worth. However, the new study found the contrary.

While analysing the British Household Panel Survey data set involving 1000 individual promotions, they found no evidence of improved physical health.

However, those who were promoted experienced a significantly greater mental strain. After a job promotion, there was on average a 10pct decrease in people’s mental health.

Moreover, they also reported on average a 20pct drop in their visits to a doctor following the promotion.

The researchers believe that this might be because of the stress on promoted people that put more constraints on their time and they simply have less time to visit a doctor.

“Getting a promotion at work is not as great as many people think,” said University of Warwick researcher Chris Boyce.

“Our research finds that the mental health of managers typically deteriorates after a job promotion, and in a way that goes beyond merely a short-term change.

“There are no indications of any health improvements for promoted people other than reduced attendance at GP surgeries, which may itself be something to worry about rather than celebrate,” he added.

The study was presented at the Royal Economic Society’s conference. (ANI)

Now, flat, flexible speakers to revolutionise loudspeakers in public spaces

Washington, Apr 2 (ANI): Public announcements in passenger terminals could now be clearer, crisper, and easier to hear-thanks to a new ‘Flat, Flexible Loudspeaker’ (FFL) developed by University of Warwick engineers.

Pioneered by University of Warwick spinout company Warwick Audio Technologies, the groundbreaking new loud speakers are less than 0.25mm thick, and could even be hung on a wall like a picture.

The slim and flexible speakers are not only lightweight and inexpensive to manufacture, but could also be concealed inside ceiling tiles or car interiors.

FFLs are ideal for public spaces where they deliver planar directional sound waves, which project further than sound from conventional speakers.

According to Steve Couchman, CEO of Warwick Audio Technologies, the speakers could entirely replace the speakers currently used in homes and in cars, as well as in public address systems used in passenger terminals and shopping centres.

“We believe this is a truly innovative technology. Its size and flexibility means it can be used in all sorts of areas where space is at a premium,” he said.

He added: “Audio visual companies are investigating its use as point of sale posters for smart audio messaging and car manufacturers are particularly interested in it for its light weight and thinness, which means it can be incorporated into the headlining of cars, rather than lower down in the interior.”

Conventional speakers work by converting an electric signal into sound, but the new FFL technology is a carefully designed assembly of thin, conducting and insulating materials.

The use of these materials results in the development of a flexible laminate, which when excited by an electrical signal will vibrate and produce sound.

The speaker laminate operates as a perfect piston resonator, thus the entire diaphragm radiates in phase, forming an area source.

The wave front emitted by the vibrating surface is phase coherent, producing a plane wave with very high directivity and very accurate sound imaging.

Couchman said: “Another great application would be in PA systems for public spaces. The sound produced by FFLs can be directed straight at its intended audience. The sound volume and quality does not deteriorate as it does in conventional speakers, which means that public announcements in passenger terminals, for example, could be clearer, crisper, and easier to hear.”

Initially designed using just two sheets of tinfoil and an insulating layer of baking paper to produce sound, the FFL has since evolved and the technology is now ready for commercial exploitation. (ANI)

Diabetic South Asians more likely to lose their eyesight earlier than White Europeans

Washington, Mar 25 (ANI): South Asians with type 2 diabetes are more likely to lose their eyesight at an earlier age compared to White Europeans with the same condition, according to a new study.

The study, conducted by researchers at the University of Warwick has shown that diabetic retinopathy (damage to the retina) is more prevalent in South Asians and occurs earlier than in White European people with diabetes.

For the study, researchers looked at 1.035 patients with type 2 diabetes, 421 were of South Asian origin and 614 were White Europeans.

The results showed 45 percent of South Asians had retinopathy, compared to 37 percent of White Europeans, and 16 percent of the South Asian group had sight threatening retinopathy, compared to 12 percent White Europeans.

South Asian diabetes patients were also significantly younger than the White European group. The average age of the South Asian group at diagnosis of diabetes was 53 years, compared to 57 years for White Europeans.

The study also suggested South Asians developed diabetic retinopathy about seven years earlier than White Europeans.

“The South Asian participants in this study had significantly higher systolic and diastolic blood pressures and cholesterol levels. Systematic screening for retinopathy, combined with intensive management of diabetes, including reduction of blood glucose and blood pressure, could help to reduce the incidence of visual impairment and blindness in ethnic minority groups across the world, addressing an important health inequality,” Professor Sudhesh Kumar, Professor of Medicine, Diabetes and Endocrinology at Warwick Medical School, said.

The study has been published in the latest issue of Diabetes Care. (ANI)

No clear link between lack of vitamin D and depression

Washington, Mar 18 (ANI): A new study by researchers at the University of Warwick has shown that there is no clear link between lack of vitamin D and depression.

Lack of Vitamin D has been related to depression and the symptoms of Seasonal Affective Disorder (SAD).

Exposure to sunlight stimulates vitamin D in the skin and a shortage of sunlight in the winter has been put forward as one possible cause of SAD.

However, Warwick Medical School researchers, led by Dr Oscar Franco, have found low levels of vitamin D in the blood may not be associated with depression.

In the study, the researchers recruited more than 3,000 people and tested levels of vitamin D (25-hydroxyvitamin D) in the blood. They then carried out a questionnaire with the participants to assess the prevalence of depressive symptoms.

Vitamin D deficiency exists when the concentration of 25-hydroxy-vitamin D (25-OH-D) in the blood serum occurs at 12ng/ml (nanograms/millilitre) or less. The normal concentration of 25-hydroxy-vitamin D in the blood serum is 25-50ng/ml.

The researchers found there was no clear association between depressive symptoms and the concentration of vitamin D in the blood.

“Few studies have explored the association between blood 25-hydroxyvitamin D concentrations and depression in the general population. A deficiency of vitamin D has also been attributed to several chronic diseases, including osteoporosis, common cancers, autoimmune and cardiovascular diseases,” Dr Oscar Franco, Assistant Clinical Professor in Public Health, said.

The researchers recruited 3,262 community residents aged 50-70 from Beijing and Shanghai in China.

Franco said his study did not evaluate whether the depressive symptoms were seasonal and suggested more studies needed to be done.

“Previous studies into the effects of vitamin D supplementation have produced mixed results. More studies are still needed to evaluate whether vitamin D is associated with seasonal affective disorders, but our study does raise questions about the effects of taking more vitamin D to combat depressive symptoms,” Franco said.

This study was carried out in collaboration with colleagues from the Institute for Nutritional Sciences, Chinese Academy of Sciences in China.

The study has been published in the Journal of Affective Disorders. (ANI)

Extremely premature kids likely to face learning difficulties by age 11

Washington, Mar 12 (ANI): Kids who are born extremely premature are likely to face learning difficulties by the time they reach the age of 11, say researchers.

The research team from University of Warwick, University College London and the University of Nottingham have revealed that almost two thirds of children born below 26 weeks gestation require additional support at school.

During the study, the researchers looked at 307 extremely preterm children born in the UK and Ireland in 1995.

They found that extremely preterm children had significantly lower reading and maths scores than classmates.

Moreover, extremely preterm boys were more likely to have more serious impairments than girls.

Overall, just under half of the extremely premature children have serious disabilities, such as learning difficulties, cerebral palsy and impaired vision or hearing.

Professor Dieter Wolke, from Warwick Medical School, said extremely premature birth placed children at higher risk for cognitive and learning deficits affecting their schooling.

“We found up to 44 pct of children had a serious impairment in core subjects such as reading and maths, and 50 pct had performance below the average range expected for their age,” said Wolke.

“Extremely pre-term children have a 13-fold increased risk of special educational needs requiring additional learning support and were 77 times more likely to have an educational statement at 11 years of age.

“These problems we have identified at age 11 that impact on schooling are likely to increase over time.

“Existing difficulties may cause further problems when the children reach secondary school and engage in more complex academic activities,” he added.

This study is published in the Archives of Disease in Childhood Fetal Neonatal Edition. (ANI)

Playing hard to get raises women’s chances of finding ‘good’ men

London, Jan 17 (ANI): Here’s a vital tip for ladies who’re looking for “good” men: play hard to get.

According to mathematicians, women increase their chances of getting a “good” man by not having sex on a first date.

The researchers came to the conclusion after developing a mathematical model of the mating game to help explain why courtship is often protracted.

The study, by researchers at UCL (University College London), University of Warwick and LSE (London School of Economics and Political Science), shows that extended courtship enables a male to signal his suitability to a female and enables the female to screen out the male if he is unsuitable as a mate.

The research, published this month in the Journal of Theoretical Biology, uses game theory to analyse how males and females behave strategically towards each other in the mating game.

The mathematical model considers a male and a female in a courtship encounter of unspecified duration, with the game ending when one or other party quits or the female accepts the male as a mate. The model assumes that the male is either a ”good” or a ”bad” type from the female’s point of view, according to his condition or willingness to care for the young after mating.

The female gets a positive payoff from mating if the male is a ”good” male but a negative payoff if he is ”bad”, so it is in her interest to gain information about the male’s type with the aim of avoiding mating with a “bad” male. In contrast, a male gets a positive payoff from mating with any female, though his payoff is higher if he is “good” than if he is “bad”.

The study looks for evolutionarily stable equilibrium behaviours, in which females are doing as well as they can against male behaviour and males are doing as well as they can against female behaviour. It shows that extended courtship can take place, with a good male being willing to court for longer than a bad male and the female delaying mating.

In this way the duration of a male’s courtship effort carries information about his type. By delaying mating, the female is able to make some use of this information to achieve a degree of screening. Because bad males have a greater tendency to quit the courtship game early, as time goes on and the male has not quit it becomes increasingly probable that he is a “good” male.

Professor Robert Seymour, UCL Mathematics, says: “Courtship in a number of animal species occurs over an extended period of time. Human courtship, for example, can involve a sequence of dinners, theatre trips and other outings lasting months or even years.

“One partner – often the male – may pay the greater part of the financial cost, but to both sexes there is a significant cost of time which could be spent on other productive activities. Why don’t people and other animals speed things up to reduce these costs? The answer seems to be that longer courtship is a way for the female to acquire information about the male.

“By delaying mating, the female is able to reduce the chance that she will mate with a bad male. A male’s willingness to court for a long time is a signal that he is likely to be a good male.

“Long courtship is a price paid for increasing the chance that mating, if it occurs, will be a harmonious match which benefits both sexes. This may help to explain the commonly held belief that a woman is best advised not to sleep with a man on a first date.” (ANI)

Scientists bring 2000-year-old statue of Amazon warrior to virtual life

Washington, Jan 13 (ANI): A team of scientists in the UK is digitally restoring a 2000-year-old painted statue of an Amazon warrior to her original glory.

The scientists are from WMG Solutions at the University of Warwick, the University of Southampton, and the Herculaneum Conservation Project.

The Roman statue was discovered by the Herculaneum Conservation Project in the ancient ruins of Herculaneum, a town preserved in the same eruption that buried nearby Pompeii in AD 79.

It is thought to represent a wounded Amazon warrior, complete with painted hair and eyes preserved by the ash that buried the town.

Researchers from WMG at the University of Warwick, Southampton and Herculaneum are now scanning, modelling and digitally recreating the Amazon statue.
Dr Mark Williams, a leader in laser measurement at WMG, took his team and equipment to the site.

“The statue is an incredible find. Although its age alone makes it valuable, it is unique because it has retained the original painted surface, preserved under the volcanic material that buried Herculaneum,” he said.

Dr Williams used state-of-the-art equipment to accurately measure (within 0.05 of a millimetre) every surface of the bust and translated that information into a computer model.

Dr Greg Gibbons, also of WMG, then used rapid prototyping to create a physical 3D model of the head revealing the smallest detail.

Further recording was carried out on site by experts in archaeological computing from Southampton, led by Dr Graeme Earl.

They used a novel form of photography which provided an extremely detailed record of the texture and colour of the painted surfaces.

The Southampton team is now digitally re-modelling and re-painting the sculpture. They are using techniques derived from the film industry to recreate the original carved and painted surfaces.

In the final step, Professor Alan Chalmers, head of WMG’s visualization team and an expert in ultra-realistic graphics, will apply techniques to the computer model to exactly reproduce the lighting and environmental conditions under which the painted statue would have originally been created and displayed.

This visualization will provide archaeologists with an otherwise impossible view of how the original statue may have looked in context, and allow them to experiment with alternative hypotheses.

According to Professor Chalmers, “Our work will be used both for educational and research purposes to give people new insights into the statue’s design, to provide a record for conservators, and to explore how it may have been appreciated over 2000 years ago.” (ANI)

Girls twice as likely as boys to be bullied for longer time

Washington, Jan 13 (ANI): Girls, who are victims of bullying in primary school are two and a half more likely than boys to remain targets for a longer time, according to a new study.

The study led by the University of Warwick Professor of Developmental Psychology Dieter Wolke showed that girls victimised by bullies (being beaten and suffering physical or verbal threats) at the age of six were significantly more likely to still be a direct victim at age ten.

Moreover, the nature of bullying changes as children grow older, from direct victimisation (physical bullying and threats) to relational victimisation (spreading of malicious gossip or the withdrawal of friendships leading to social exclusion).

The researchers interviewed 663 children aged 6-9 about their bullying experiences.

They found that those who moved schools were actually 49pct more likely to have been victims of relational bullying.

Wolke noted that these children had significantly fewer friends and were in more hierarchically organised classes.

“These findings indicate that even at an early age some victims of bullying remain victims over a long period of time,” said Wolke.

“The development and implementation of intervention programmes that help victims to escape further victimization in primary school are called for,” he added.

The study is published online in the British Journal of Developmental Psychology. (ANI)