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Science News for November 26, 2001


Chlorophyllin reduces Aflatoxin indicators among people at risk for liver cancer

Researchers found that taking chlorophyllin three times a day reduced aflatoxin-DNA damage by 55 percent among residents of Qidong, China. The study suggests that chlorophyllin may act as an 'interceptor molecule' to block the absorption of aflatoxins and carcinogens in the diet.

SourceJohns Hopkins Bloomberg School of Public Health·JournalProceedings of the National Academy of Sciences·DateNov 26, 2001

Pain, price, insurance delays for new vaccines concern kids' doctors

Pediatricians and family doctors are concerned about the high cost of new vaccines, insurance delays, and unequal access to these life-saving shots. The survey found that many doctors are hesitant to recommend the pneumococcal conjugate vaccine due to its financial burden.

SourceMichigan Medicine - University of Michigan·JournalAmbulatory Pediatrics·DateNov 26, 2001
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

ThermoChemistry on a chip

Scientists at RTI in North Carolina have developed a high-efficiency thermocouple device that can make something hotter or colder over 20,000 times faster than current devices. This innovation has the potential to convert heat into electrical energy more efficiently and could lead to affordable plug-in modules for widespread use.

SourceOffice of Naval Research·DateNov 26, 2001

Using genetic research to treat inflammatory diseases – Vienna centre of excellence in biomedicine harnesses basic research

The Vienna centre of excellence in biomedicine is researching into the genetic causes of chronic inflammatory diseases, such as rheumatism and arteriosclerosis. The centre brings together leading university institutes, pharmaceutical companies, and start-ups to achieve rapid transfers of research results from the laboratory to patients.

SourcePR&D Public Relations for Research & Development·DateNov 26, 2001

Trends in the use of Ritalin in Canada

A meta-analysis of 2897 participants found short-acting methylphenidate effective for ADD, but with side effects such as decreased appetite and insomnia. Prescription rates in British Columbia increased rapidly compared to the US, with higher rates in lower socioeconomic quintiles.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 26, 2001

Assaulting the mosquito’s sense of smell

Researchers at Vanderbilt University have identified four genes in the Anopheles gambiae mosquito that code for odorant receptors similar to those found in fruit flies. These genes are only expressed in the antennae and maxillary palps, indicating that mosquitoes use a conserved chemosensory system to track human body odor.

SourceVanderbilt University·JournalProceedings of the National Academy of Sciences·DateNov 26, 2001
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.

Parental marital discord affects quality of offspring marriages

A longitudinal study by Dr. Alan Booth and Dr. Paul R. Amato found that parental marital discord impacts offspring marriages, including the degree of matrimonial happiness or conflict. The transmission of poor interpersonal behaviors from parents can result in lower quality marriages among children.

SourcePenn State·JournalJournal of Personality and Social Psychology·DateNov 26, 2001

Boneless, brainy, and ancient

Researchers have discovered that an octopus's brain operates like a general in command of troops, issuing orders to independent peripheral nervous systems. This decentralized control enables the octopus to perform complex tasks with high maneuverability and flexibility.

SourceOffice of Naval Research·DateNov 26, 2001

Alzheimer's disease and exposure to vaccines

A study by René Verreault and colleagues found that past vaccine exposure was associated with a reduced risk of developing Alzheimer's disease. The researchers used multivariate logistic regressions to compare vaccinated and non-vaccinated subjects, adjusting for age, sex, and education.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 26, 2001

Electrical brain stimulation reduces Parkinson’s symptoms

A study published in Neurology found that electrical brain stimulation increased 'on' motor function by 29 percent and improved 'off' motor function by 38 percent in Parkinson's patients. The treatment reduced the severity of fluctuations in motor symptoms, allowing patients to complete tasks faster and improve their overall mobility.

SourceAmerican Academy of Neurology·JournalNeurology·DateNov 26, 2001

Protein could help rejuvenate oxygen-starved cardiac tissue, heal wounds

Researchers genetically engineered mice to overexpress the HIF-1α gene in skin cells, resulting in a 70% increase in capillaries and normal-like blood vessels. The study suggests that HIF-1α harnesses VEGF expression in a way that could be beneficial therapeutically for conditions like ischemic tissue and recalcitrant wounds.

SourceUniversity of California - San Francisco·JournalGenes & Development·DateNov 26, 2001
Apple iPhone 17 Pro

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

New bacteria target cancers in mice

Scientists discovered a bacteria, Clostridium novyi, that thrives in oxygen-poor environments and destroys tumor cells. In mouse models, the bacteria was combined with chemotherapy to achieve dramatic results, completely destroying over half of the treated tumors within 24 hours.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateNov 26, 2001

Mirror, mirror on the ball...

The Starshine Satellite Project involves students from Pakistan, New Zealand, Brazil, and India polishing thousands of mirrors to help calibrate The Fence, the Navy's space surveillance network. Once launched, students will be able to track the satellite's movement as it passes across the skies.

SourceOffice of Naval Research·DateNov 26, 2001

Antarctic plants repair themselves

Researchers found that Antarctic plants can repair themselves after exposure to harmful UV radiation, with effective DNA repair mechanisms at low temperatures. However, the team expects a rise in temperature to lead to a shift in vegetation composition, with rapidly growing grasses and mosses replacing lichens.

SourceNetherlands Organization for Scientific Research·DateNov 26, 2001

Antique device makes microscope faster

The Utrecht spectrograph uses a prism to disperse light, resulting in faster pictures with reduced light loss. Researchers used it to study proteins from muscle tissue and discovered unexpected chemical reactions triggered by illumination.

SourceNetherlands Organization for Scientific Research·DateNov 26, 2001
Celestron NexStar 8SE Computerized Telescope

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

The immune system and Alzheimer’s disease

The amyloid beta protein found in plaques stimulates the production of toxic substances that attract new surrounding cells, causing brain cell death. Astrocytes, normally involved in maintaining brain structure, slow down these processes and protect against inflammation.

SourceNetherlands Organization for Scientific Research·DateNov 26, 2001

Analyses show water stayed on Mars longer than previously thought

Researchers analyzed topographic maps and meteorites to determine that water circulated in the upper part of Mars' crust within the last billion years. This finding suggests that water may still be present near the surface, with evidence of recent gullies forming in high-latitude regions.

SourceWashington University in St. Louis·DateNov 26, 2001

Hip research: Making more durable artificial joints

A team of researchers at Case Western Reserve University is developing computer simulated models to predict the performance of new implant designs before they are implanted into patients. They aim to uncover how damage occurs in plastic used in total joint replacements and identify potential design concerns.

SourceCase Western Reserve University·DateNov 26, 2001

Earth’s magnetic field really did reverse itself

Researchers used a new method to study sediment sediments, revealing a short-lived change in the earth's magnetic field. They found that bacteria formed magnetic material in an organically rich layer in the eastern Mediterranean.

SourceNetherlands Organization for Scientific Research·DateNov 26, 2001

Genetically engineered T cell tackles kidney cancer

Researchers at Rotterdam University Hospital develop genetically engineered T cells to target kidney cancer. The therapy combines the cellular immune system with the humoral immune system, offering a promising treatment option for patients with metastases.

SourceNetherlands Organization for Scientific Research·DateNov 26, 2001
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.

Black Hole research shows English football (soccer) is 30 times more boring than football (soccer) games in rest of world

A study by University of Warwick researchers found that English football games are characterized by fewer high-scoring matches compared to the rest of the world. In contrast, top division matches globally exhibit a much higher frequency of high scores, suggesting a significant difference in the level of excitement between the two.

SourceUniversity of Warwick·DateNov 26, 2001

Iron Age burial sites provide evidence of social changes

In the Iron Age, local identity was centered around ancestral burial sites, but shifted to family and settlement ties as people began to settle and cultivate land. This change had significant implications for community cohesion and collective identity.

SourceNetherlands Organization for Scientific Research·DateNov 26, 2001
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.