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Science News for September 20, 2004


Wastewater could treat itself, power city

Researchers at U of T found that municipal wastewater contains enough organic material to generate significant amounts of electricity. By using anaerobic digestion instead of aerobic treatment, wastewater treatment plants could produce enough electricity for their own operations and potentially export excess energy to the grid.

SourceUniversity of Toronto·JournalJournal of Energy Engineering·DateSep 20, 2004
Apple iPhone 17 Pro

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

HIV dementia mechanism discovered

Researchers found dopamine transporter injury in HIV dementia patients, suggesting a new direction for treatment. The study suggests that viral suppression may lead to recovery of deficits in the dopamine system.

SourceDOE/Brookhaven National Laboratory·JournalBrain·DateSep 20, 2004

Obese trauma patients more likely to die of their injuries

The study found that obese trauma patients were 6 times more likely to die from their injuries compared to non-obese patients. The researchers also discovered that the obese group had a higher incidence of multiple organ failure, with 13% experiencing this complication compared to 3% in the non-obese group.

SourceJAMA Network·JournalArchives of Surgery·DateSep 20, 2004

Prion propagation: Avoiding the toxic oligomer

Researchers found that amyloid growth can occur independently of oligomers in yeast prion protein Sup35. The study suggests that creating conditions favoring fiber growth while inhibiting oligomer formation might limit the toxic effects of amyloid plaques.

SourcePLOS·JournalPLOS Biology·DateSep 20, 2004

Intravenous line placement for minor ear surgery in children appears to offer no added benefit

A recent study found that IV access does not provide a significant advantage for healthy children undergoing minor ear surgery. Children without IV access experienced reduced pain requirements and shorter hospital stays. Meanwhile, parents whose children did not receive IV access reported higher satisfaction rates with the procedure.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateSep 20, 2004
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.

Half of patients with aggressive non-Hodgkin's lymphoma are under-treated

A study of 4,522 patients found that 48-53% received less than 85% of recommended chemotherapy doses due to treatment delays or dose reductions. Patients over age 60 had significantly higher risk of under-treatment. The study emphasizes the importance of timely and effective chemotherapy management.

SourceUniversity of Rochester Medical Center·JournalJournal of Clinical Oncology·DateSep 20, 2004

More frequent monitoring advised for people with diabetes

The study suggests that monitoring glycated hemoglobin levels can help identify individuals at increased risk of developing cardiovascular disease. Researchers found a significant association between elevated glycated hemoglobin levels and increased risk of large-vessel cardiovascular disease among people with type II diabetes.

SourceJohns Hopkins Medicine·JournalAnnals of Internal Medicine·DateSep 20, 2004

Vanilla may have a future in sickle cell treatment

Researchers have developed a variant of vanillin that can treat sickle cell disease, a condition that causes red blood cells to form the hazardous sickle shape. The compound, MX-1520, was tested in mice and found to inhibit the formation of rigid sickled cells, offering hope for safer and more effective treatment options.

SourceChildren's Hospital of Philadelphia·JournalBritish Journal of Haematology·DateSep 20, 2004
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.

Annals of Internal Medicine tip sheet for Sept. 21, 2004

Two studies find that high hemoglobin A1c levels are an independent risk factor for cardiovascular events, including heart disease and stroke. Improvements in glycemic control may improve health outcomes in people without diabetes.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateSep 20, 2004

Scientists decipher genetic code of biothreat pathogen

Researchers have cracked the genetic code of B. mallei, a highly evolved pathogen that causes glanders, an infectious equine disease. The study reveals a tightly regulated set of virulence genes and genomic instability, which may explain why B. mallei can evade host immune responses.

SourceThe Institute for Genomic Research·JournalProceedings of the National Academy of Sciences·DateSep 20, 2004

Binocular rivalry: Fulfilling visual expectations

A recent study using binocular rivalry demonstrates the importance of feedback in interpreting visual images. The experimenters found that once a walking figure is recognized, it can cause dominance of signals from one eye and suppression of signals from the other.

SourceCell Press·JournalCurrent Biology·DateSep 20, 2004
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Immediate breast reconstruction after mastectomy does not delay chemotherapy

A study of 128 women found that immediate breast reconstruction after mastectomy did not delay the initiation of postoperative chemotherapy. The overall rate of wound complications was 15.5%, with higher rates in patients who underwent immediate breast reconstruction, but these complications did not affect chemotherapy timing.

SourceJAMA Network·JournalArchives of Surgery·DateSep 20, 2004
Celestron NexStar 8SE Computerized Telescope

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

Targeted therapy knocks out pediatric brain cancer in mice

Researchers developed a small molecule inhibitor of the Sonic Hedgehog signaling pathway, HhAntag, which completely eradicated medulloblastoma tumors in mice. Long-term treatment prolonged medulloblastoma-free survival without toxic side effects.

SourceCell Press·JournalCancer Cell·DateSep 20, 2004

Research suggests new avenue for stopping, preventing colon cancer

Researchers at Vanderbilt University Medical Center have identified a new potential target for preventing colon cancer: the PPARdelta gene. By 'knocking out' this gene in mice, they found that polyp development was inhibited, providing a promising avenue for safer prevention methods.

SourceVanderbilt University Medical Center·JournalCancer Cell·DateSep 20, 2004

Study finds fibromyalgia prohibits sufferers from breast-feeding

Women with fibromyalgia often struggle with breast-feeding due to medication side effects and pain. Research suggests healthcare providers should explore non-prescription methods and refer women to lactation consultants for support.

SourceTemple University·JournalMCN The American Journal of Maternal/Child Nursing·DateSep 20, 2004
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.

Amyloid fibers sprout one step at a time

Amyloid fibers assemble individually through the addition of monomers, contradicting earlier theories that suggested oligomeric globules played a key role in their formation. This finding has significant implications for understanding amyloid diseases such as Alzheimer's and Parkinson's.

SourceHoward Hughes Medical Institute·JournalPLOS Biology·DateSep 20, 2004

'Fossil genes' reveal how life sheds form and function

Scientists have found a trackway of fossil genes in the Japanese yeast Saccharomyces kudriavzevii, showing how an organism discards traits when they are no longer needed. The discovery provides insights into the process of evolution and how genetic pathways become obsolete.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateSep 20, 2004

Martin Saunders to receive the James Flack Norris Award

Martin Saunders will receive the James Flack Norris Award for his seminal contributions to NMR spectroscopy, structures, and rearrangements of carbocations. He developed new methods for studying these highly reactive species, allowing him to discover detailed mechanisms and rates of rapid rearrangement reactions.

SourceYale University·DateSep 20, 2004
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Fractures mean broken lives in developing world: Study

A study by Dr. Massey Beveridge highlights the importance of orthopedic care in developing countries, where road traffic injuries and falls are major causes of disease burden among children. With only 400 surgeons serving 200 million people, access to simple surgical and obstetrical procedures could prevent up to 10% of all deaths.

SourceUniversity of Toronto·JournalJournal of Bone and Joint Surgery·DateSep 20, 2004

T.P. Ma receives the 2005 IEEE Andrew S. Grove Award

T.P. Ma, a Yale University professor, is honored with the 2005 IEEE Andrew S. Grove Award for his groundbreaking research on complementary metal oxide semiconductor (CMOS) gate dielectrics. His work has focused on microelectronics, semiconductors, and memory applications.

SourceYale University·DateSep 20, 2004

Scientists explore genome of methane-breathing microbe

The study reveals that methanotrophs, including M. capsulatus, have multiple pathways for using methane and can respond to environmental changes by switching between different chemical pathways. This flexibility could make them a valuable tool for reducing methane emissions.

SourceThe Institute for Genomic Research·JournalPLOS Biology·DateSep 20, 2004

Stimulating the production of utrophin protects muscular dystrophy mice from muscle wasting

In a breakthrough study, scientists discovered that stimulating the production of utrophin improves muscle function and quality in mice with muscular dystrophy. The research uses a small molecule to turn on utrophin production, bypassing the need for gene therapy. Utrophin levels increased by threefold, leading to improved muscle tissu...

SourceUniversity of Pennsylvania School of Medicine·JournalProceedings of the National Academy of Sciences·DateSep 20, 2004
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.

Key stimulator of colorectal cancer identified

Researchers found that PGE2 activates PPARd through a signaling pathway promoting cell survival and polyp formation. This effect was not observed in mice lacking PPARd, highlighting the role of PPARd as a critical downstream mediator in PGE2-stimulated colorectal tumor growth.

SourceCell Press·JournalCancer Cell·DateSep 20, 2004

Strep bacteria uses a sword and shield to win battle against immune system

The study reveals that Strep bacteria employ a dual strategy to outsmart the immune system: producing a toxic 'sword' called hemolysin to kill immune cells, and an antioxidant 'shield' made of carotenoids to protect itself from oxidative damage. This unique approach makes GBS a more lethal pathogen.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateSep 20, 2004

Green, leafy spinach may soon power cellphones and laptops

Researchers at MIT and partners successfully integrated a photosynthetic protein complex with a solid-state electronic device, paving the way for efficient energy generation. The innovation uses spinach chloroplasts to create a dry environment that stabilizes protein complexes, enabling the development of practical organic solar cells.

SourceMassachusetts Institute of Technology·JournalNano Letters·DateSep 20, 2004
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.

Study reveals why eyes in some paintings seem to follow viewers

A study reveals that the apparent movement of eyes in paintings is caused by visual perception, not supernatural forces. The researchers found that changes in viewing direction had little effect on the observers' perceptions, except for making the torso look thinner when viewed from an angle.

SourceOhio State University·JournalPerception·DateSep 20, 2004

Economy of movement

Researchers Konrad Körding and colleagues used utility functions, commonly used in economics, to analyze motor control. They found a surprising amount of agreement on preferred movements and a counterintuitive result that longer resistance was preferred over stronger resistance.

SourcePLOS·JournalPLOS Biology·DateSep 20, 2004