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July 08, 2008 Science Current Events
Surprisingly rapid changes in the Earth's core discovered
In a recent paper published in Nature Geoscience, the geophysicist Mioara MANDEA from the GFZ German Research Centre for Geosciences, Potsdam and her Danish colleague Nils OLSEN from the National Space Institute/DTU Copenhagen, have shown that motions in the fluid in the Earth's core are changing surprisingly fast, and that this, in turn, effects the magnetic field of our Planet.
In a recent paper published in Nature Geoscience, the geophysicist Mioara MANDEA from the GFZ German Research Centre for Geosciences, Potsdam and her Danish colleague Nils OLSEN from the National Space Institute/DTU Copenhagen, have shown that motions in the fluid in the Earth's core are changing surprisingly fast, and that this, in turn, effects the magnetic field of our Planet.
Children born after donor insemination should be told as soon as possible about their conception
It is better for children conceived by donor insemination to be told of their origins at an early age, according to the first large-scale study of people who are aware of their donor conception.
It is better for children conceived by donor insemination to be told of their origins at an early age, according to the first large-scale study of people who are aware of their donor conception.
Species Diversity Less Dramatic Than Believed
A study published in the current issue of Science challenges the long-held belief that diversity of marine species has been increasing continuously since the origin of animals. Dr. Thomas D. Olszewski, a geology and geophysics professor at Texas A&M University, has been a part of the international team that carried out this decade-long study, which concludes that most of the diversification occurred early on - relatively speaking.
A study published in the current issue of Science challenges the long-held belief that diversity of marine species has been increasing continuously since the origin of animals. Dr. Thomas D. Olszewski, a geology and geophysics professor at Texas A&M University, has been a part of the international team that carried out this decade-long study, which concludes that most of the diversification occurred early on - relatively speaking.
NOAA report states half of US coral reefs in 'poor' or 'fair' condition
Nearly half of U.S. coral reef ecosystems are considered to be in "poor" or "fair" condition according to a new NOAA analysis of the health of coral reefs under U.S. jurisdiction.
Nearly half of U.S. coral reef ecosystems are considered to be in "poor" or "fair" condition according to a new NOAA analysis of the health of coral reefs under U.S. jurisdiction.
Incentives for carbon sequestration may not protect species
Paying rural landowners in Oregon's Willamette Basin to protect at-risk animals won't necessarily mean that their newly conserved trees and plants will absorb more carbon from the atmosphere and vice versa, a new study has found.
Paying rural landowners in Oregon's Willamette Basin to protect at-risk animals won't necessarily mean that their newly conserved trees and plants will absorb more carbon from the atmosphere and vice versa, a new study has found.
Child care factors associated with weight gain in infancy
Nine-month-old infants regularly cared for by someone other than a parent appear to have higher rates of unfavorable feeding practices and to weigh more than infants cared for only by parents, according to a report in the July issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.
Nine-month-old infants regularly cared for by someone other than a parent appear to have higher rates of unfavorable feeding practices and to weigh more than infants cared for only by parents, according to a report in the July issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.
Schizophrenia linked to dysfunction in molecular brain pathway activated by marijuana
Alterations in a molecular brain pathway activated by marijuana may contribute to the cognitive symptoms of schizophrenia, according to a report in the July issue of Archives of General Psychiatry, one of the JAMA/Archives journals.
Alterations in a molecular brain pathway activated by marijuana may contribute to the cognitive symptoms of schizophrenia, according to a report in the July issue of Archives of General Psychiatry, one of the JAMA/Archives journals.
New ovarian stimulation technique offers more cancer patients the chance to preserve their fertility
Researchers have shown for the first time that it is possible to stimulate a woman's ovaries to produce eggs for collection during the final phase of the menstrual cycle.
Researchers have shown for the first time that it is possible to stimulate a woman's ovaries to produce eggs for collection during the final phase of the menstrual cycle.
Parents of twins report more mental health symptoms than parents of singletons
Mothers and fathers of twins conceived either spontaneously or with assisted reproductive technology (ART) suffer more mental health symptoms after delivery and one year later than do parents of singleton babies.
Mothers and fathers of twins conceived either spontaneously or with assisted reproductive technology (ART) suffer more mental health symptoms after delivery and one year later than do parents of singleton babies.
Creating a new approach to archiving human genetic information
A genome sequence is a long sequence written in a four letter code-3 billion letters in the case of a human genome. But what is the meaning-how is the code deciphered?
A genome sequence is a long sequence written in a four letter code-3 billion letters in the case of a human genome. But what is the meaning-how is the code deciphered?
Overweight, insulin resistant women at greater risk of advanced breast cancer diagnosis, says study
Women who have risk factors commonly associated with Type 2 diabetes also have much greater odds of being diagnosed with an advanced breast cancer.
Women who have risk factors commonly associated with Type 2 diabetes also have much greater odds of being diagnosed with an advanced breast cancer.
Protein thought to promote cancer instead functions as a tumor suppressor, researchers report
A protein previously thought to promote colorectal cancer instead suppresses the growth of human cancer cells in culture, researchers at UT Southwestern Medical Center have found.
A protein previously thought to promote colorectal cancer instead suppresses the growth of human cancer cells in culture, researchers at UT Southwestern Medical Center have found.
Smithsonian coral biodiversity survey of Panama's Pearl Islands
A comprehensive survey of coral biodiversity in Panama's Las Perlas Archipelago, published in the journal Environmental Conservation by researchers from the Smithsonian Tropical Research Institute and their colleagues, has resulted in clear conservation recommendations for a new coastal management plan.
A comprehensive survey of coral biodiversity in Panama's Las Perlas Archipelago, published in the journal Environmental Conservation by researchers from the Smithsonian Tropical Research Institute and their colleagues, has resulted in clear conservation recommendations for a new coastal management plan.
Embryo biopsy does not affect early growth and risk of congenital malformations in PGD/PGS babies
A study of 70 singleton babies born after preimplantation genetic diagnosis and screening has shown that the procedure does not adversely affect their early growth and risk of congenital malformations.
A study of 70 singleton babies born after preimplantation genetic diagnosis and screening has shown that the procedure does not adversely affect their early growth and risk of congenital malformations.
Should embryos with a hereditary disorder be transferred if no unaffected embryos are available?
The numbers of cycles of preimplantation genetic diagnosis or screening are rising steadily in Europe with over 2,700 reported in 2004 (the most recent year for which data are available).
The numbers of cycles of preimplantation genetic diagnosis or screening are rising steadily in Europe with over 2,700 reported in 2004 (the most recent year for which data are available).
Review article provides tools for the Rosaceae genomics community
A recent paper published in the journal Plant Physiology provides a comprehensive overview of the genomics tools and resources available for the rapidly growing Rosaceae scientific community.
A recent paper published in the journal Plant Physiology provides a comprehensive overview of the genomics tools and resources available for the rapidly growing Rosaceae scientific community.
Disruption of blood sugar levels after heart surgery is common
A study reveals today that inadequate blood sugar control in patients having heart surgery is associated with a four fold increase in post-surgery death and major complications - and that the blood sugar disturbances occur in patients with and without diabetes.
A study reveals today that inadequate blood sugar control in patients having heart surgery is associated with a four fold increase in post-surgery death and major complications - and that the blood sugar disturbances occur in patients with and without diabetes.
Study: Perception of hole size influenced by performance
Golfers who play well are more likely to see the hole as larger than their poor-playing counterparts, according to a Purdue University researcher.
Golfers who play well are more likely to see the hole as larger than their poor-playing counterparts, according to a Purdue University researcher.
IVF does not increase risk of developmental disorders in children
Couples who need IVF in order to become pregnant can be reassured that this will not lead to developmental problems in early infancy.
Couples who need IVF in order to become pregnant can be reassured that this will not lead to developmental problems in early infancy.
Political borders, health-care issues complicate pandemic planning
Panic, staffing issues and geographic boundaries are some of the challenges that public health experts need to address as they plan for a possible influenza pandemic, according to a new report from Purdue University.
Panic, staffing issues and geographic boundaries are some of the challenges that public health experts need to address as they plan for a possible influenza pandemic, according to a new report from Purdue University.
Whales and dolphins influence new wind turbine design
Sea creatures have evolved over millions of years to maximise efficiency of movement through water; humans have been trying to perfect streamlined designs for barely a century.
Sea creatures have evolved over millions of years to maximise efficiency of movement through water; humans have been trying to perfect streamlined designs for barely a century.
Children born from frozen embryos weigh more and do better than those born after fresh transfer
Children born after a frozen, thawed embryo has been replaced in the womb have higher birth weight than those born where fresh embryos were used.
Children born after a frozen, thawed embryo has been replaced in the womb have higher birth weight than those born where fresh embryos were used.
Fertility treatment in developing countries; a cycle of IVF for less than $200
After 30 years of IVF, the rewards of treatment are still largely confined to industrialised countries and those who can afford it.
After 30 years of IVF, the rewards of treatment are still largely confined to industrialised countries and those who can afford it.
Pregnancy alone is not associated with increased risk for mental disorders
Pregnancy alone does not appear to be associated with an increased risk of the most prevalent mental disorders, according to a report in the July issue of Archives of General Psychiatry, one of the JAMA/Archives journals. However, post-partum women may have a higher risk of major depressive disorder.
Pregnancy alone does not appear to be associated with an increased risk of the most prevalent mental disorders, according to a report in the July issue of Archives of General Psychiatry, one of the JAMA/Archives journals. However, post-partum women may have a higher risk of major depressive disorder.
Kaiser Permanente study finds keeping a food diary doubles diet weight loss
Keeping a food diary can double a person's weight loss according to a study from Kaiser Permanente's Center for Health Research.
Keeping a food diary can double a person's weight loss according to a study from Kaiser Permanente's Center for Health Research.
Birds migrate together at night in dispersed flocks, new study indicates
A new analysis indicates that birds don't fly alone when migrating at night. Some birds, at least, keep together on their migratory journeys, flying in tandem even when they are 200 meters or more apart.
A new analysis indicates that birds don't fly alone when migrating at night. Some birds, at least, keep together on their migratory journeys, flying in tandem even when they are 200 meters or more apart.
European league-tables for antibiotic resistance revealed
Tests of antibiotic resistance in cattle have revealed stark variation across thirteen European countries. The results, published today in BioMed Central's open-access journal Acta Veterinaria Scandinavica, show that major differences were apparent in the occurrence of resistance between countries and between the different antimicrobial agents tested.
Tests of antibiotic resistance in cattle have revealed stark variation across thirteen European countries. The results, published today in BioMed Central's open-access journal Acta Veterinaria Scandinavica, show that major differences were apparent in the occurrence of resistance between countries and between the different antimicrobial agents tested.
NYC first: Complex aneurysm treated using new fenestrated endograft stent
In a New York City metro-area first, a 93-year-old Bronx man underwent implantation of a new stent graft at NewYork-Presbyterian Hospital, the only center on the Eastern Seaboard with access to this investigational device.
In a New York City metro-area first, a 93-year-old Bronx man underwent implantation of a new stent graft at NewYork-Presbyterian Hospital, the only center on the Eastern Seaboard with access to this investigational device.
Researchers reveal types of genes necessary for brain development
Researchers from Harvard Medical School and Brandeis University have successfully completed a full-genome RNAi screen in neurons, showing what types of genes are necessary for brain development. Details of the screen and its novel methodology are published July 4th in the open-access journal PLoS Genetics.
Researchers from Harvard Medical School and Brandeis University have successfully completed a full-genome RNAi screen in neurons, showing what types of genes are necessary for brain development. Details of the screen and its novel methodology are published July 4th in the open-access journal PLoS Genetics.
98 percent of elective mastectomy patients would have reconstruction again, says ASPS study
Women who have breast reconstruction after an elective mastectomy are satisfied with their decision, have low complication rates and 98 percent would do it again.
Women who have breast reconstruction after an elective mastectomy are satisfied with their decision, have low complication rates and 98 percent would do it again.
Finding suggests novel ways to boost vaccination or natural defenses
Our bodies rely on the production of potent, or 'high affinity', antibodies to fight infection. The process is very complex, yet Sydney scientists have discovered that it hinges on a single molecule, a growth factor, without which it cannot function.
Our bodies rely on the production of potent, or 'high affinity', antibodies to fight infection. The process is very complex, yet Sydney scientists have discovered that it hinges on a single molecule, a growth factor, without which it cannot function.
National Vaccine Advisory Committee recommends increased adolescent immunization
Vaccinating infants and toddlers is an almost universal practice in the United States. Vaccines to prevent flu are a regular part of medical care for senior citizens and at-risk patients. But, according to a study published in the August 2008 issue of the American Journal of Preventive Medicine, the US healthcare system is not very effective in getting vaccines to the adolescent population.
Vaccinating infants and toddlers is an almost universal practice in the United States. Vaccines to prevent flu are a regular part of medical care for senior citizens and at-risk patients. But, according to a study published in the August 2008 issue of the American Journal of Preventive Medicine, the US healthcare system is not very effective in getting vaccines to the adolescent population.
Relationship violence appears common among college students
Violence between partners, friends and acquaintances appears prevalent both during and before college, according to results of a survey of students at three urban college campuses published in the July issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.
Violence between partners, friends and acquaintances appears prevalent both during and before college, according to results of a survey of students at three urban college campuses published in the July issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.
Some antidepressants associated with gastrointestinal bleeding
A class of antidepressants known as selective serotonin reuptake inhibitors (SSRIs) appear to be associated with bleeding in the upper gastrointestinal tract.
A class of antidepressants known as selective serotonin reuptake inhibitors (SSRIs) appear to be associated with bleeding in the upper gastrointestinal tract.
Birth attendant and maternal hand-washing associated with reduced newborn death rate
Washing hands with soap and water before delivering a newborn infant is associated with a lower rate of neonatal deaths in developing countries, according to a report in the July issue of Archives of Pediatrics and Adolescent Medicine, one of the JAMA/Archives journals.
Washing hands with soap and water before delivering a newborn infant is associated with a lower rate of neonatal deaths in developing countries, according to a report in the July issue of Archives of Pediatrics and Adolescent Medicine, one of the JAMA/Archives journals.
Baseball diamonds: the lefthander's best friend
Baseball diamonds are a left-hander's best friend. That's because the game was designed to make a lefty the "Natural," according to David A. Peters, Ph.D., the McDonnell Douglas Professor of Engineering at Washington University in St. Louis and über baseball fan. Peters is a mechanical engineer who specializes in aircraft and helicopter engineering and has a different approach to viewing America's Favorite Pastime.
Baseball diamonds are a left-hander's best friend. That's because the game was designed to make a lefty the "Natural," according to David A. Peters, Ph.D., the McDonnell Douglas Professor of Engineering at Washington University in St. Louis and über baseball fan. Peters is a mechanical engineer who specializes in aircraft and helicopter engineering and has a different approach to viewing America's Favorite Pastime.
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