People who smoked marijuana had changes in the blood flow in their brains even after a month of not smoking, according to a study published in the February 8 issue of Neurology, the scientific journal of the American Academy of Neurology.
The findings could explain in part the problems with thinking or remembering found in other studies of marijuana users, according to study authors Ronald Herning, PhD, and Jean Lud Cadet, MD, of the National Institute on Drug Abuse in Baltimore, Md.
Researchers at Karolinska Institutet have identified the mechanisms behind the serious, congenital heart condition that can sometimes develop in children of women with a rheumatic disease.
This serious form of congenital heart disease, known as AV heart block, develops when a certain type of antibody is transferred from the mother to the foetus during pregnancy. The antibodies are targeted against endogenous proteins and cause the inflammation and calcification of the foetal ca
CSIRO Petroleum and German-based research centre Laser Zentrum Hannover eV (LZH) are collaborating in a project that could save millions of dollars in oil exploration and introduce new Australian geochemical and petroleum analysis techniques to Europe.
Researchers from the two organisations are six months into a three year project working to enhance the capabilities of the on-line laser micropyrolysis gas chromatography-mass spectrometry (LaPy-GC/MS) technique for quality control
The eyes are not only a mirror of a soul, but also a medical record. Their thermal radiation can indicate a disease even before clinical signs appear. Investigations in this area conducted by Russian scientists have been supported by the research program of the Russian Academy of Sciences called “Abstract Sciences for Medicine”.
Russian biophysicists under the guidance of G.R. Ivanitsky, Corresponding Member of the Russian Academy of Sciences, are developing the system for rapid dis
d3o lab was granted a government SMART award in 2003 and 2004 for the development of a high technology application. Since then they have been developing the technology in the laboratory and working with a diverse range of companies from medical to extreme sports to realise the material’s potential.
The material qualities of d3o are unlike any other material currently available and it has an endless list of possible uses as a result. Richard Palmer, Managing Director of d3o lab c
Chips based on Seignette-electrics (ferroelectrics) will retain recorded information for centuries, this being done without any power replenishment. Devices based on these wonderful materials’ thin films will help to track the route of an animal or a bird during its overall life span, to control the valuable freight travel and to find the lost or stolen stuff, even if more than a year elapsed since the time of a loss. The information on the St. Petersburg researchers’ development is available in
Russian researchers, specialists of the Institute of Problems of Chemical Physics, Russian Academy of Sciences, suggest the way to make motor-car airbags even more secure. Their theoretical and practical investigations allowed to determine which the compounds should be included in the powder that burns at the moment of blow during the accident so that the airbags were instantly filled up with gases not dangerous to human beings and environment. The researchers’ effort was supported by the Interna
A new version of Overcoming Bulimia, the self-help CD-ROM which uses the proven cognitive behavioural therapy (CBT) approach to the treatment of bulimia has been launched by Media Innovations Ltd, to coincide with National Eating Disorders Awareness Week which takes place on 6-12 February 2005.
The new version of the CD-ROM is based on feedback from clinicians who regularly use the package to treat patients and from patients themselves. The CD-ROM has been designed to address the
See the face of Europe from space – with the entire continent covered in consistent detail. This set of true-colour Envisat satellite mosaics depicts the ten newest members of the European Union as well as ESA’s 15 current member states and two pending accessions of Greece and Luxembourg.
The crowning mosaic in the series represents approximately 1.6 million square kilometres of European territory at 300-metre resolution. All the mosaics were produced using the Medium Reso
Obese children who get kidney transplants tend to be younger, shorter and on dialysis longer than their leaner peers, according to a study in the February issue of the journal Pediatrics.
A review of 6,658 children age 2-17 receiving transplants in the United States, Mexico and Canada between 1987 and 2002 showed that obese children age 6-12 had a five-year mortality rate more than double that of non-obese children the same age: 12.1 percent compared to 5.4 percent respectivel
New technology can screen for multiple agents simultaneously; has potential applications for clinical medicine, biodefense, vaccine development, blood product industry
Researchers at Columbia University’s Mailman School of Public Health and the Columbia Genome Center have designed and developed a sensitive new diagnostic technology platform, called “Mass Tag PCR,” that can simultaneously screen for multiple infectious agents. The new technology is addressed in a paper publis
Therapy is quicker, less invasive than IV therapy
Oral rehydration therapy, or giving fluids by mouth, is equally effective as giving intravenous fluids to young children dehydrated by common stomach and intestinal inflammations, according to a new study by emergency medicine physicians. Because oral therapy can be started more quickly and is less painful for the child than IV treatment, the researchers say it should be the preferred treatment for children with moderate dehydrat
Twice as many boys as girls are referred to medical specialists for evaluation of short stature or poor growth, according to a new study.
The imbalance may reflect society’s gender biases about stature, and may have serious health consequences: girls whose growth failure is caused by an underlying disease may be overlooked, or experience unnecessary delays in receiving a proper diagnosis. The results may also suggest that short but healthy boys are more likely to be subjected
Study shows larger babies have higher risk of certain cancers in adulthood
Babies who weighed more at birth had higher rates of digestive and lymphatic cancers in adulthood, according to a new study published February 7, 2005 in the online edition of the International Journal of Cancer, the official journal of the International Union Against Cancer (UICC). The study, available online at Wiley InterScience, also found that women who weighed more at birth had significantly h
There may be more reason than ever to drink your milk and eat your fruits and vegetables. A Wake Forest University Baptist Medical Center researcher and colleagues reported today that high consumption of dairy products and fruits and vegetables may lower the risk of disability, especially among black women.
The research, in the American Journal of Clinical Nutrition, found that black women who consumed the highest amounts of dairy products and fruits and vegetables – close to the
Genetic diversity, age, and cultural experience all contribute to the sensory worlds of children and their parents
Variation in a taste receptor gene influences taste sensitivity of children and adults, accounting for individual differences in taste preferences and food selection, report a team of researchers from the Monell Chemical Senses Center. In addition to genes, age and culture also contribute to taste preferences, at times overriding the influence of genetics.
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