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Science News Archive December 2008 - Page 19


Page 19 of 21

Ecological impact of African cities

African cities are experiencing rapid growth, transforming natural resource use and affecting rural areas. The main driver of deforestation is not fuel wood demand but rather agricultural land clearing in peri-urban areas to feed growing urban populations.

SourceWiley·JournalAfrican Journal of Ecology·DateDec 2, 2008

Einstein researchers develop technique to count messages made by single genes

Researchers at Albert Einstein College of Medicine have developed a new technique to count individual mRNA molecules within single cells, revealing detailed insights into gene expression and regulation. The study found that housekeeping genes are not always expressed at a constant level, but rather exhibit restricted variability.

SourceAlbert Einstein College of Medicine·JournalNature Structural & Molecular Biology·DateDec 2, 2008

Invasive garden ants as new pest insects in Europe

A new study reveals invasive garden ants (Lasius neglectus) originated from the Black Sea region and are able to thrive in temperate climates. They can spread rapidly through large potted plants and human movement, posing a significant threat to natural biodiversity.

SourcePLOS·JournalPLOS ONE·DateDec 2, 2008

Plants display 'molecular amnesia'

Researchers at McGill University have discovered that plants can forget epigenetic silencing, a process crucial for breeding enhanced crops. This 'molecular amnesia' varies depending on genome position, offering new avenues for understanding gene regulation and developing cancer treatments.

SourceMcGill University·JournalPLOS Genetics·DateDec 2, 2008

Ship-in-a-bottle kit on a microchip

Researchers have developed a new method to equip miniaturized laboratories with moving parts using magnetic colloidal particles. The technique allows for the creation of complex networks of individual components driven by a single magnetic field.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateDec 2, 2008

New test for depression

Researchers at UCL developed a new universal test to predict the risk of major depression, which was tested in 6,000 people and found accurate in predicting future episodes. The tool, predictD, could be used by family doctors and local clinics to identify those at risk for whom prevention might be most useful.

SourceUniversity College London·JournalArchives of General Psychiatry·DateDec 2, 2008

When childhood dies

The Lancet Series on Child Maltreatment aims to provide a rigorous summary of scientific evidence to inform policy discussions. The series emphasizes the importance of training, recognition strategies, and evidence-based approaches to safeguard children from abuse.

SourceThe Lancet_DELETED·JournalThe Lancet·DateDec 2, 2008

Scientists produce illusion of body-swapping

Cognitive neuroscientists successfully created an illusion of body-swapping by manipulating sensory impressions, allowing subjects to perceive a mannequin's body as their own. This discovery sheds light on how the brain constructs an internal image of the body and has potential practical uses in VR applications.

SourcePLOS·JournalPLOS ONE·DateDec 2, 2008

Professionals significantly under-report child abuse

Experts argue that schools and community health services contribute significantly to child maltreatment reporting, highlighting the need for improved recognition and response. The study suggests that policy approaches focusing on supportive interventions may be more effective than those prioritizing protection.

SourceThe Lancet_DELETED·JournalThe Lancet·DateDec 2, 2008

Child maltreatment: 3 other perspectives

The Lancet Series on Child Maltreatment highlights the importance of supporting paediatricians who work with child maltreatment cases. Professor Jenny suggests that regulation of experts and media coverage can help safeguard children. The series also emphasizes the need for a public-health approach to address social inequality and pare...

SourceThe Lancet_DELETED·JournalThe Lancet·DateDec 2, 2008

It takes 2 to tango

Researchers at Max Planck Institute of Neurobiology find that transmitter terminals play an active role in synapse assembly and disintegration, contributing to brain adaptability. This discovery challenges the long-held assumption that only the receiver side of a synapse is involved in reorganization.

SourceMax-Planck-Gesellschaft·JournalNeuron·DateDec 2, 2008

Oetzi's last supper

A 5,200-year-old study of the Tyrolean Iceman's intestinal contents identifies six different mosses, suggesting he may have traveled, injured himself, and dressed wounds. The findings provide insights into his lifestyle and events leading up to his death.

SourceSpringer·JournalVegetation History and Archaeobotany·DateDec 1, 2008

Embargoed news from Annals of Internal Medicine

Researchers found that hospitalist interventions can significantly reduce emergency room crowding, with a 6% decrease in ambulance diversion. Additionally, the study highlights the importance of physician communication through apology laws, which may improve doctor-patient relationships and increase patient satisfaction.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateDec 1, 2008

Maternal exposure to folic acid antagonists increases risks

A retrospective cohort study found maternal exposure to folic acid antagonists during pregnancy increases the risk of adverse outcomes such as preeclampsia and fetal growth restriction. The study recommends re-classifying some folic acid antagonists and increasing folic acid supplements for women taking these medications during pregnancy.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateDec 1, 2008

Brown chemist finds gray mold's killer gene

Researchers have identified a set of genes responsible for producing the deadly toxin botrydial in gray mold, and found that shutting off this gene can stop toxin production. The discovery offers hope for finding natural ways to eliminate gray mold without using expensive fungicides.

SourceBrown University·JournalACS Chemical Biology·DateDec 1, 2008

1/3 of farm workers' children lack health insurance

Farm workers' children are three times more likely to be uninsured than all other children, with socio-economic factors playing a significant role in this disparity. The study highlights the need for increased efforts to enroll and retain eligible children in health insurance programs.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateDec 1, 2008

Mayo Clinic seeks new therapies for alcoholic hepatitis

A new study from Mayo Clinic found that etanercept therapy was not effective in treating patients with moderate to severe alcoholic hepatitis, increasing six-month mortality rates due to increased infections. Abstinence is still considered the best policy for reversing liver damage and reducing disease progression.

SourceMayo Clinic·JournalGASTROENTEROLOGY·DateDec 1, 2008