medicine – Page 3 – Shamskm: A site to exchange knowledge and solutions

New Twist on Ancient Math Problem Could Improve Medicine, Microelectronics

By Guest PostMay 15, 2012Scienceancient math problem, carolyn phillips, filling problem, hidden facet, medicine, microelectronics, microprocessor, Nanotechnology, pentagon, protein, radiation beam, sanskrit manuscript, sharon glotzer, silicon chip, solution, starfish, three dimensions, traps, treating tumor, two dimensions, university of connecticut, university of michigan

ANN ARBOR, Mich.— A hidden facet of a math problem that goes back to timeworn Sanskrit manuscripts has just been exposed by nanotechnology researchers at the University of Michigan and the University of Connecticut.

It turns out we’ve been missing a version of the famous “packing problem,” and its new guise could have implications for cancer treatment, secure wireless networks, microelectronics and demolitions, the researchers say.

Called the “filling problem,” it seeks the best way to cover the inside of an object with a particular shape, such as filling a triangle with discs of varying sizes. Unlike the traditional packing problem, the discs can overlap. It also differs from the “covering problem” because the discs can’t extend beyond the triangle’s boundaries. (more…)

Ageing Population Could Boost Economy

By Guest PostApril 26, 2012Economyadam jones, ageing population, alzheimer disease, boost, british economy, david taylor, diabetes, dilnot proposal, economic problem, Economy, gdp, gross national product, heart attack, jennifer gill, life expectancy, longevity, medicine, national productivity, nhs, obesity, older people, pharmaceutical revolution, phenomena, society, stroke, ucl, uk

Older people are a benefit, rather than a burden, to the economy and society according to a new report from the UCL School of Pharmacy.

The report, Active Ageing: Live Longer and Prosper (produced with financial support from Alliance Boots) refutes the view that older people are a major source of economic problems such as reduced international competitiveness. It provides evidence that the benefits of living longer will outweigh the additional health and social care costs of population ageing.

“All too often old age is seen as a time of increasing dependency, vulnerability and frailty. But older people already contribute significantly to their families’ and wider communities’ wellbeing,” said Dr Jennifer Gill (UCL School of Pharmacy), co-author of the report. (more…)

Novel Chemical Reaction

By Guest PostApril 16, 2012Scienceacs, akira suzuki, carbon hydrogen bond, carbon silicon bond, catalyst, chemical reaction, chemistry, derek ahneman, donald watson, ei ichi negishi, heck reaction, hybrid catalyst, japanese scientists, jesse mcatee, keywan johnson, medicine, metal, molecules, nobel prize, palladium, plastics, reactive, richard f heck, san diego, sara martin, tracey bryant, university of delaware

University research advance inspired by UD Nobel Prize winner Richard Heck

A chemical reaction reported by University of Delaware assistant professor Donald Watson and his laboratory group has set the chemistry world abuzz for its creativity and potential utility.

Watson and his team in the UD Department of Chemistry and Biochemistry have developed a chemical reaction that converts carbon-hydrogen bonds to carbon-silicon bonds using the metal palladium as a catalyst, yielding an important new tool for building molecules. The potential industrial applications are broad, ranging from the manufacture of medicines to plastics. (more…)

Good Intentions Ease Pain, Add to Pleasure: UMD Study

By Guest PostJanuary 21, 2012Culture, General, Healthbenevolent condition, business, business strategy, computer, electric massage, god, god and evil, good intention, intention, kurt gray, malicious condition, medicine, nurse, pain, parenting, physical experience, pleasure, power, real world applications, relationships, sooth pain, tender care, university of maryland

COLLEGE PARK, Md. — A nurse’s tender loving care really does ease the pain of a medical procedure, and grandma’s cookies really do taste better, if we perceive them to be made with love – suggests newly published research by a University of Maryland psychologist. The findings have many real-world applications, including in medicine, relationships, parenting and business.

“The way we read another person’s intentions changes our physical experience of the world,” says UMD Assistant Professor Kurt Gray, author of “The Power of Good Intentions,” newly published online ahead of print in the journal Social Psychological and Personality Science. Gray directs the Maryland Mind Perception and Morality Lab. (more…)

Breakthrough Scientific Discoveries No Longer Dominated By the Very Young, Study Finds

By Guest PostNovember 11, 2011Science20th century, benjamin jones, biographical analysis, bruce weinberg, jeff grabmeier, knowledge, medicine, nobel laureates, nobel prize, nobel prize winner, northwestern university, ohio state university, physicists, physics, quantum mechanics, scientists under the age of 40, significant breakthroughs in chemistry

COLUMBUS, Ohio – Scientists under the age of 40 used to make the majority of significant breakthroughs in chemistry, physics and medicine – but that is no longer the case, new research suggests.

A study of Nobel Laureates from 1901 to 2008 in these three fields examined the age at which scientists did their prize-winning work.

Results showed that before 1905, about two-thirds of winners in all three fields did their prize-winning work before age 40, and about 20 percent did it before age 30. (more…)

MSU Licenses Technology to Detect Altered Fingerprints

By Guest PostSeptember 13, 2011Scienceadvancement of biometrics, agriculture, altered fingerprints, alternative energy, anil jain, biometrics department, border control, charles hasemann, cutting edge software, engineering, identification and detection solutions, jean christophe fondeur, medicine, michigan state university, morpho, rare isotope, safran group, soweon yoon, true identity

EAST LANSING, Mich. — Michigan State University has licensed cutting-edge software that detects altered fingerprints to Morpho, part of the Safran group, one of the world’s leading suppliers of identification and detection solutions.

The widespread use of fingerprint recognition systems has led some individuals to disfigure or surgically change their fingerprints to mask their identities. The technology, developed by Anil Jain, University Distinguished Professor of computer science and engineering at MSU, can help law enforcement and border control officials detect these altered fingerprints. (more…)

New 3-D Model of RNA ‘Core Domain’ of Enzyme Telomerase May Offer Clues to Cancer, Aging

By Guest PostNovember 6, 2010Health, Scienceaging, cancer, cells, chromosomes, DNA, dna damage, enzyme, helical extension, juli feigon, medicine, nmr, nobel prize, nuclear magnetic resonance, physiology, proteins, pseudoknot, qi zhang, rna, spectroscopy, telomerase, telomeres, virus

A model representation of telomerase's RNA "core domain," determined by Juli Feigon, Qi Zhang and colleagues in Feigon's UCLA laboratory. Image credit: Juli Feigon, UCLA Chemistry and Biochemistry/PNAS

Telomerase is an enzyme that maintains the DNA at the ends of our chromosomes, known as telomeres. In the absence of telomerase activity, every time our cells divide, our telomeres get shorter. This is part of the natural aging process, as most cells in the human body do not have much active telomerase. Eventually, these DNA-containing telomeres, which act as protective caps at the ends of chromosomes, become so short that the cells die.

But in some cells, such as cancer cells, telomerase, which is composed of RNA and proteins, is highly active and adds telomere DNA, preventing telomere shortening and extending the life of the cell.

UCLA biochemists have now produced a three-dimensional structural model of the RNA “core domain” of the telomerase enzyme. Because telomerase plays a surprisingly important role in cancer and aging, understanding its structure could lead to new approaches for treating disease, the researchers say. (more…)

Tag Archives: medicine