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Science News for June 21, 2007


Scientists seek marijuana's isotopic fingerprint

Researchers at the University of Alaska Fairbanks are working on a way to determine whether marijuana was grown indoors or outdoors by analyzing the stable isotopes of carbon, oxygen, nitrogen, and hydrogen. The method has potential to help police track down growing operations and match seized samples with known locations.

SourceUniversity of Alaska Fairbanks·DateJun 21, 2007

New amfAR research grants to optimize HIV treatment

amfAR is funding research projects to better understand the social and biological factors that influence HIV treatment. Studies will explore the potential benefits of maraviroc, a new antiretroviral drug, and examine how stigma affects healthcare quality for people with HIV.

SourceamfAR, The Foundation for AIDS Research·DateJun 21, 2007
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Gene therapy for Parkinson's disease

A study published in The Lancet found that gene therapy can safely alleviate symptoms of Parkinson's disease, with significant improvements seen in movement and motor scores. The treatment involves injecting genetic information directly into brain cells, eliminating the need for indwelling hardware associated with deep-brain stimulation.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 21, 2007

K-State biochemist contributes to article in Science magazine

Researchers compared genes involved in insects' immunity and their ability to spread disease, gaining insights into halting the transmission of diseases like malaria. By analyzing gene sequences with computers, scientists identified key genes to study, paving the way for new experimental research.

SourceKansas State University·JournalScience·DateJun 21, 2007

Paving the way toward a vaccine against Alzheimer's disease

Researchers have made promising breakthroughs in understanding how antibodies can reduce the main hallmarks of Alzheimer's disease, including memory loss and ability to learn. The study suggests that antibodies could be used to prevent protein clusters from forming, which is believed to kill nerve cells.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Biological Chemistry·DateJun 21, 2007

Specialized, bone-crushing wolves of Alaska disappeared long ago

Researchers discovered Alaska's ancient wolves were distinct from modern wolves, with robust bodies and massive canine teeth. The study suggests these specialized hunters and scavengers thrived in ancient Alaska, but their extinction portends potential demise of similar predators due to global warming.

SourceCell Press·JournalCurrent Biology·DateJun 21, 2007
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Stem cells to repair damaged heart muscle

Researchers will inject selected stem cells from patients' own bone marrow into their hearts during coronary bypass surgery. The goal is to prevent late scar formation and improve heart contraction, reducing the risk of congestive heart failure.

SourceUniversity of Bristol·DateJun 21, 2007

Mathematics reveals genetic pattern of tumor growth

UC Irvine scientists use mathematical theory to understand how cancer cells alter their genetic makeup, accelerating tumor growth. The study found that tumors thrive when unstable in early stages and become stable later on, providing insight into future cancer treatments.

SourceUniversity of California - Irvine·JournalJournal of The Royal Society Interface·DateJun 21, 2007

JCI table of contents: June 21, 2007

Researchers found that a nutritionally balanced diet high in omega-3 fatty acid reduced prostate tumor growth and increased survival in genetically predisposed mice. Omega-6 fatty acids had the opposite effects. The study suggests a beneficial effect of omega-3 polyunsaturated fatty acids on delaying human prostate cancer.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 21, 2007

MU maps course for improving pre-college science education

The University of Missouri-Columbia has been awarded a $750,000 grant to develop innovative mapping tools and concepts for teaching fundamental concepts of human health, biology, and medical sciences. The program, Maps in Medicine, aims to strengthen interest in science among at-risk high school students and enrich teacher training.

SourceUniversity of Missouri-Columbia·DateJun 21, 2007

New picture of Earth's lower mantle

A team of scientists led by Sébastien Merkel found that post-perovskite, a high-pressure silicate mineral, doesn't fit what is known about the mysterious layer D

SourceArizona State University·JournalScience·DateJun 21, 2007
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Doubling doses of vitamin A does not help mothers and children

Research suggests that higher doses of vitamin A do not improve health outcomes for mothers and children in areas with moderate deficiency. Lower doses, as recommended by the WHO, may be sufficient to prevent mortality. The findings urge caution against increasing standard dosing schedules without further investigation.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 21, 2007

New spin-off offers enterprise solution to open source statistical software

Random Technologies launched its RPro Statistic Software, providing enterprise-level support for the widely-used open source system R, which is well-suited for biomedical research and data-intensive fields. The company aims to standardize the process of releasing new features and provide professional technology support.

SourceUniversity of Rochester Medical Center·DateJun 21, 2007

Meaningful leisure can mean many things

A study by Yoshi Iwasaki explores the role of enjoyable and expressive activities in promoting quality of life across cultures. The findings suggest that culturally-based leisure-like pursuits can enhance well-being, self-esteem, and resilience, particularly in less-privileged populations.

SourceTemple University·JournalSocial Indicators Research·DateJun 21, 2007
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Ovarian cancer is not a symptomless killer

Recent evidence shows ovarian cancer is preceded by symptoms like gastrointestinal or urinary issues in three to four months before diagnosis. Patient groups urge women to seek medical attention for new and persistent symptoms, while experts acknowledge the need for clinical judgement and more research funding.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 21, 2007

Catching waves: Measuring self-assembly in action

The NIST/NCSU team observed the spontaneous assembly of organosilane molecules into a monolayer film, finding wavelike ordering with an expanded interface. The findings support recent theoretical modeling and have implications for understanding self-propagating chemical reactions and ordering phenomena.

SourceNational Institute of Standards and Technology (NIST)·JournalProceedings of the National Academy of Sciences·DateJun 21, 2007
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

The smallest piece of ice reveals its true nature

Scientists have developed a breakthrough understanding of how individual water molecules come together to form ice crystals. This research provides unprecedented resolution and sheds light on the process of heterogeneous nucleation, essential for climate change models and cloud formation.

SourceUniversity College London·JournalNature Materials·DateJun 21, 2007

Putting feelings into words produces therapeutic effects in the brain

Researchers found that verbalizing emotions reduces brain activity in the amygdala, a region associated with emotional responses. This decrease in activity is linked to increased activity in the right ventrolateral prefrontal cortex, which processes emotions and inhibits behavior.

SourceUniversity of California - Los Angeles·JournalPsychological Science·DateJun 21, 2007

Model of NASA'S Webb Telescope visits Ireland

The James Webb Space Telescope model is on display in Dublin, Ireland, providing a glimpse into the successor to the Hubble Telescope. The model was built by Northrop Grumman and weighs over 12,000 lbs., featuring a sunshield that 'breathes' thanks to a special material imported from France.

SourceNASA/Goddard Space Flight Center·DateJun 21, 2007
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Research suggests omega-3s may help slow prostate cancer growth

Research suggests that a diet high in omega-3 fatty acids may improve prognosis for men genetically prone to develop prostate cancer. The study found that mice with a genetic defect causing prostate cancer had reduced tumor growth, slowed disease progression and increased survival when fed a high-omega-3 diet.

SourceAtrium Health Wake Forest Baptist·JournalJournal of Clinical Investigation·DateJun 21, 2007

Vaccines help kick drug habits

Two new vaccines have been designed to combat cocaine and methamphetamine dependencies, stimulating the body to produce antibodies that attack the drugs. These therapeutic vaccines minimize withdrawal symptoms and relieve addiction, but do not necessarily curb relapse.

SourceBaylor College of Medicine·DateJun 21, 2007

Antarctic icebergs -- Hotspots of ocean life

A new study reveals that Antarctic icebergs are hotspots of ocean life, supporting thriving communities of seabirds above and a web of phytoplankton, krill, and fish below. The researchers found that the icebergs produce a halo effect with increased phytoplankton, krill, and seabirds out to a radius of more than two miles around them.

SourceUniversity of California - San Diego·JournalScience·DateJun 21, 2007

Blind people are 'serial memory' whizzes

A new study found that blind people have superior serial memory skills, particularly in remembering items in the correct order. This advantage is thought to result from the constant use of serial-memory strategies in everyday life. Researchers plan to further investigate the underlying mental processes responsible for this phenomenon.

SourceCell Press·JournalCurrent Biology·DateJun 21, 2007
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Ice Age extinction claimed highly carnivorous Alaskan wolves

Researchers found that a unique, highly carnivorous Alaskan wolf species vanished after the end of the last Ice Age. The study revealed a distinct genetic profile and diet, which suggests these wolves were specialized for large prey and possibly scavenging.

SourceSmithsonian·JournalCurrent Biology·DateJun 21, 2007

ASM scores a hat-trick at the 2007 Hermes Creative Awards

The American Society for Microbiology (ASM) received three honors at the 2007 Hermes Creative Awards, including a Platinum Award for its MicrobeWorld Radio audio and video podcasts. Its blog, Small Things Considered, won a Gold Award, while its website earned an Honorable Mention.

SourceAmerican Society for Microbiology·DateJun 21, 2007

Study identifies novel Parkinson's disease drug target

Scientists have discovered a potential new treatment for Parkinson's disease by inhibiting the action of an enzyme called SIRT2. Blocking this pathway is believed to protect neurons damaged in Parkinson's from the toxic effects of alpha-synuclein, a protein that accumulates in the brains of patients.

SourceMassachusetts General Hospital·JournalScience·DateJun 21, 2007

Pregnancy nausea/vomiting may indicate lower risk of breast cancer

A new study suggests that women who suffer from morning sickness during pregnancy may be less likely to develop breast cancer later in life. The study found a 30% lower risk of breast cancer among women with nausea and vomiting compared to those without, suggesting potential protective effects against cancer cells.

SourceUniversity at Buffalo·DateJun 21, 2007
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

NASA and ESA sign agreements for future cooperation

NASA and the European Space Agency (ESA) have signed agreements to cooperate on the James Webb Space Telescope and the Laser Interferometer Space Antenna (LISA) Pathfinder mission. The JWST will investigate galaxy, star, and planetary system origins, operating in space at L2 with a 21.3-foot primary mirror.

SourceNASA/Goddard Space Flight Center·DateJun 21, 2007

Neuroblastoma -- The way ahead

Researchers discuss future directions in neuroblastoma treatment, including new approaches for high-risk patients and the development of an international classification system. Current regimens and prognosis are also analyzed, highlighting the need for improved understanding of genomic alterations to guide therapy.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 21, 2007

Ancient retrovirus sheds light on modern pandemic

Researchers at Fred Hutchinson Cancer Center studied an ancient retrovirus, PtERV1, which infected nonhuman primates 4 million years ago. They found that humans have innate immunity to this virus, but this resistance may have made them more susceptible to HIV infection.

SourceFred Hutchinson Cancer Center·JournalScience·DateJun 21, 2007

Scientists close in on missing carbon sink

A recent study suggests that northern forests absorb less carbon than previously thought, with intact tropical forests taking up a larger proportion of the atmosphere's carbon dioxide, partially offsetting industrial emissions and deforestation.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalScience·DateJun 21, 2007
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.