Add BrightSurf on Google Email

Science News for December 17, 2007


Z-shaped incision enhances minimally invasive surgery

Researchers at Penn State developed a novel surgical technique using a Z-shaped incision to access the stomach, promising reduced bleeding and complication rates. The technique has potential applications in minimally invasive surgeries, such as intestinal bypass surgery and organ biopsies.

SourcePenn State·JournalGastrointestinal Endoscopy·DateDec 17, 2007

New strategy to cut heart attack risk is effective in initial test

A new drug has been found safe and effective at reducing levels of 'bad' LDL cholesterol by up to 40 percent, a promising approach for treating high cholesterol and related conditions. The drug accelerates the natural process of ridding the body of LDL, offering an alternative to statins and potentially complementing their use.

SourceUniversity of California - San Francisco·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Robotic device appears useful for surgical removal of cancer involving the tonsils

A new robotic surgery technique called transoral robotic surgery (TORS) has been shown to be effective in removing tonsil cancer with minimal complications and improved patient outcomes. In a study of 27 patients, surgeons successfully removed all cancerous tissues in 93% of cases, with an average surgery time of one hour and 43 minutes.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateDec 17, 2007

MIT works toward engineered blood vessels

Engineered blood vessels could be transplanted into tissues such as the kidneys, liver, heart or any other organs that require large amounts of vascular tissue. The researchers created a surface template to grow capillary tubes aligned in a specific direction using nano-scale patterning.

SourceMassachusetts Institute of Technology·JournalAdvanced Materials·DateDec 17, 2007

Constipation most common cause of children's abdominal pain

A new study by University of Iowa researcher Vera Loening-Baucke found that acute and chronic constipation accounted for nearly half of all cases of acute abdominal pain in children. The study recommends that physicians perform a simple rectal examination to diagnose constipation as a cause of abdominal pain.

SourceUniversity of Iowa·JournalThe Journal of Pediatrics·DateDec 17, 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.

MU study looks at social structure of prison communities

A University of Missouri researcher studied peer relationships among inmates to understand the social structure of California prisons. He found that respect is rooted in perceived similarities and is conveyed through various behaviors, such as eye contact and physical orientation.

SourceUniversity of Missouri-Columbia·JournalSocial Psychology Quarterly·DateDec 17, 2007

OHSU researchers reveal the science of shivering

Researchers at OHSU Neurological Sciences Institute have discovered the brain's wiring system that determines when to perform shivering as a defense against cold. The study reveals that this process involves parallel but distinct sensory pathways for conscious and subconscious cold detection.

SourceOregon Health & Science University·JournalNature Neuroscience·DateDec 17, 2007
Apple iPhone 17 Pro

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

For babies with heart defects, death risk is far lower at most experienced hospitals

A national study suggests that infants with complex congenital heart defects have a lower risk of dying if treated at experienced hospitals. The study found significant differences in mortality rates depending on the number of procedures performed at each hospital, with centers treating more cases having lower mortality rates.

SourceMichigan Medicine - University of Michigan·JournalPediatric Cardiology·DateDec 17, 2007

Biochip mimics the body to reveal toxicity of industrial compounds

Researchers developed two biochips, MetaChip and DataChip, to test chemical and drug compound toxicity on human cells and organs without animal testing. The combined chips provide efficient and accurate way to screen compounds for toxicity earlier in the discovery process.

SourceRensselaer Polytechnic Institute·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

Study links success of invasive Argentine ants to diet shifts

Researchers found that Argentine ants' ability to switch from carnivorous to plant sap-loving creatures allowed them to rapidly spread throughout coastal California. The change in diet enabled the ants to thrive in irrigated residential communities where more plant material than insect protein is available.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

Poultry workers at increased risk of carrying antibiotic-resistant E. coli

A recent study by Johns Hopkins Bloomberg School of Public Health reveals that poultry workers in the US are 32 times more likely to carry gentamicin-resistant E. coli bacteria than others outside the industry. The study highlights the importance of non-hospital environments in the origin of drug-resistant infections.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEnvironmental Health Perspectives·DateDec 17, 2007
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.

Moderate exercise cuts rate of metabolic syndrome

A new study from Duke University Medical Center shows that even a modest amount of brisk walking weekly can trim waistlines and cut the risk of metabolic syndrome. The research found that participants who exercised for at least 30 minutes a day, six days a week, saw significant benefits in reduced MetS scores.

SourceDuke University Medical Center·DateDec 17, 2007

Fundamental discovery by Einstein researchers reveals how fat is stored in cells

Scientists at Einstein College of Medicine identified two genes crucial for packaging fat into lipid droplets. Overexpressing these genes led to a significant increase in lipid droplet formation, while suppressing one of the genes resulted in a drastic reduction. This discovery could lead to new strategies for treating obesity and rela...

SourceAlbert Einstein College of Medicine·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

Agent orange chemical, dioxin, attacks the mitochondria to cause cancer, says Penn research team

Researchers at the University of Pennsylvania have identified that dioxin targets the mitochondria, disrupting normal cellular function and promoting tumor progression. The study's findings suggest that understanding this mechanism could lead to new ways to block the propagation of mitochondrial stress signaling and inhibit cancer growth.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

Cat fleas' journey into the vacuum is a 'one-way trip'

Researchers found that vacuuming is an effective way to kill fleas, with a high success rate in killing adult fleas (96%) and destroying younger stages (100%). The study suggests that the physical abuse caused by the vacuum's brushes and fans leads to flea death.

SourceOhio State University·JournalEntomologia Experimentalis et Applicata·DateDec 17, 2007

Where vets served affects frequency of ER visits but not hospital stays

A study by Indiana University found that veterans who served in the Persian Gulf War were 25% more likely to visit an emergency department than those who did not serve. The study also suggested that limited access to outpatient services or higher rates of accidents and injuries may be contributing factors.

SourceIndiana University·JournalAmerican Journal of Public Health·DateDec 17, 2007
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Study shows urban sprawl continues to gobble up land

A new study suggests that urban sprawl has continued to grow significantly in the US over the past few decades, particularly in exurban areas. The research found significant increases in fragmentation of land use patterns, with housing development juxtaposed with agricultural or forested areas.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

New mechanical insights into wound healing and scar tissue formation

Fibroblasts, key cells in wound healing, transform into powerful contractile cells through a mechanical process. This new understanding could help prevent fibrosis and improve tissue engineering by controlling the rigidity of cell cultures.

SourceEcole Polytechnique Fédérale de Lausanne·JournalJournal of Cell Biology·DateDec 17, 2007
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Hot spot on Enceladus causes plumes

A hot spot on Enceladus's south pole generates enough heat to eject ice and vapor plumes, indicating geological activity. The presence of water vapor and lack of sodium suggest a different mechanism may be at play, fueling questions about the moon's habitability.

SourceWashington University in St. Louis·DateDec 17, 2007

CSHL scientists identify and repress breast cancer stem cells in mouse tissue

Researchers at CSHL have identified and repressed breast cancer stem cells in mouse tissue by manipulating microRNAs, suggesting a potential therapeutic target for breast cancer treatment. The study found that the delivery of the microRNA let-7 to breast-tissue cells can help distinguish stem-like tumor-initiating cells from other cells.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateDec 17, 2007

Tip sheet, Annals of Internal Medicine, Dec. 18, 2007, issue

The American College of Physicians has issued new clinical guidelines that recommend against routine screening for carotid artery stenosis. Meanwhile, the use of vitamin D as a standard treatment for chronic kidney disease remains unchanged despite concerns over its effectiveness. Additionally, experts have called for revisions to orga...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateDec 17, 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.

MCG selected as RNA laboratory for worldwide diabetes study

The Medical College of Georgia Center for Biotechnology and Genomic Medicine has been selected to isolate RNA and DNA from the blood of thousands of children involved in a worldwide study of the causes of type 1 diabetes. The TEDDY study aims to identify environmental triggers for diabetes in children with known high-risk genes.

SourceMedical College of Georgia at Augusta University·DateDec 17, 2007

The blood-brain barrier: A misunderstood key to finding life-saving cures to brain disease

An international team of scientists proposes strategies to overcome obstacles posed by the blood-brain barrier, a gate-keeping system protecting the brain from toxins and letting in nutrients. The review article highlights the importance of understanding the blood-brain barrier in treating brain diseases such as Alzheimer's, multiple s...

SourceSaint Louis University·JournalThe Lancet Neurology·DateDec 17, 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.

UVA reports surprising findings related to myotonic muscular dystrophy

Researchers found that individuals with Type 1 myotonic muscular dystrophy overproduce the heart protein NKX2-5, yet experience similar cardiac problems. Reducing excessive NKX2-5 levels may protect against these issues, leading to potential diagnostic and therapeutic breakthroughs.

SourceUniversity of Virginia Health System·JournalNature Genetics·DateDec 17, 2007

Study examines factors associated with survival in advanced laryngeal cancer

The study analyzed data from a national cancer registry and found that type of treatment, sex, race, and insurance status are significantly associated with survival rates among patients with advanced laryngeal cancer. Total laryngectomy was found to be the most effective treatment in increasing survival likelihood.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateDec 17, 2007

New property found in ancient mineral lodestone

Researchers at Rice University have discovered a surprising new electronic property in magnetite, a well-studied magnetic mineral, by using nanofabrication methods. They were able to get the material to revert from an insulator to a conductor at temperatures colder than minus 250 degrees Fahrenheit.

SourceRice University·JournalNature Materials·DateDec 17, 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.

Massage may help ease pain and anxiety after surgery

A 20-minute evening back massage was found to decrease pain intensity and unpleasantness, as well as anxiety, in patients undergoing major surgery. The study suggests that massage may act through multiple mechanisms, including relieving anxiety and generating mood-boosting endorphins.

SourceJAMA Network·JournalArchives of Surgery·DateDec 17, 2007

Teachers play critical role in adolescent health promotion efforts

A study found that teachers provide valuable information to schools about adolescent health issues due to their daily interactions with students. Teachers are concerned about handling mental health and behavioral problems but desire additional staff development workshops.

SourceColumbia University's Mailman School of Public Health·JournalJournal of School Health·DateDec 17, 2007

Overexcited neurons not good for cell health

A Northwestern University study found that overexcited neurons can cause protein damage in muscle cells due to neurotransmitter imbalance. This imbalance can lead to various diseases, including neurodegenerative disorders and cancer.

SourceNorthwestern University·JournalGenes & Development·DateDec 17, 2007
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Monkeys can perform mental addition

Researchers at Duke University Medical Center found that monkeys can perform mental arithmetic, solving problems with accuracy and speed similar to those of college students. The study suggests that basic arithmetic may be part of our shared evolutionary past.

SourceDuke University Medical Center·JournalPLOS Biology·DateDec 17, 2007