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Science News Archive 2007


Page 165 of 203

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.

No sex for 40 million years? No problem

A new study published in PLoS Biology found that bdelloid rotifers, microscopic aquatic animals without males, have evolved into distinct species after over 40 million years of asexual reproduction. Genetic and jaw-shape evidence revealed adaptation to environmental differences as the primary driver of speciation.

New synthetic self-assembling macromolecules mimic nature

Scientists at Virginia Tech have developed a new family of charged, rod-like block copolymers that can self-assemble and form stable structures similar to DNA. These unique polymers could have potential applications in drug delivery and gene delivery systems.

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.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Smoking associated with aging of nonfacial skin

Researchers found a correlation between smoking and increased fine wrinkling in photo-protected skin, particularly among participants over 65. The study used a novel grading scale to assess the severity of skin aging, which was not previously available for photo-protected areas.

Brain scans reveal cause of smokers' cravings

Researchers at Duke University Medical Center used brain scans to identify three brain regions responsible for nicotine cravings and dependence. These regions include the thalamus, striatum, and anterior cingulate cortex, which play roles in stress relief, pleasure, and cognitive function.

Steroid hormones regulate the body clock

Research by Nicholas Foulkes and colleagues found that peripheral clocks require cortisol to generate daily rhythms of cell proliferation. Constant levels of cortisol can restore normal cell-division rhythms in cortisol-deficient strains.

Monkey see, monkey do?

Researchers found that participants could learn a complex sequence of motions by viewing and remembering it without actually reproducing it. This suggests that imitation learning is crucial for acquiring many skills used in daily life, such as sports and rehabilitation after an accident.

Fluke 87V Industrial Digital Multimeter

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

Do you need sex to be a species?

Researchers found that asexual bdelloid rotifers have evolved independently into distinct entities, with genetic and morphological cohesion within populations and divergence between them. This suggests that factors other than interbreeding control species cohesion and divergence in these organisms.

Spirituality increases as alcoholics recover

Researchers found that measures of spirituality increased significantly in recovering alcoholics, with daily spiritual experiences and feeling of purpose in life strongly linked to sobriety. This suggests that including spirituality into recovery services may be beneficial, regardless of the individual's faith or belief system.

The answer to childhood obesity: 15 minutes of football?

A new report published in PLoS Medicine suggests that making small increases to daily exercise routine, such as walking to school, could have dramatic long-term results. Researchers found that doing 15 minutes of moderate exercise per day lowered a child's chances of being obese by almost 50%.

Annals of Internal Medicine tip sheet for March 20, 2007

A study on rheumatoid arthritis found that flexible use of drugs with close patient follow-up can effectively control the disease. Additionally, a trial on men with prostate cancer showed that an osteoporosis drug strengthens bones and reduces bone loss.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Termites get the vibe on what tastes good

Researchers found termites prefer blocks with more wood content, even without touching them. The study suggests termites use vibrations to assess food quality, which could lead to new methods for controlling feeding termites and mitigating termite damage in buildings.

Advancing how computers and electronics work

A team of researchers from VCU and UC Cincinnati have made a significant breakthrough in spintronics by extending the spin relaxation time in organic nanostructures to over a second. This discovery has the potential to enable the development of smaller, faster, and more efficient electronic devices.

Apple iPhone 17 Pro

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

Researchers hot on the trail of brain cell degeneration

A new study identifies a key molecular pathway in neurons that contributes to brain cell degeneration, a process linked to conditions such as Alzheimer's disease and epilepsy. The Rho protein plays a crucial role in this destruction of neurons, and blocking its activity can prevent cell death.

Swell gel could bring relief to back pain sufferers

Scientists have developed tiny gel particles that can be injected into damaged intervertebral discs to restore mechanical properties and regain mobility. The 'microgels' have the potential to offer a non-surgical alternative to spinal fusion surgery, reducing recovery time and preserving disc flexibility.

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.

What led to the Nigerian boycott of the polio vaccination campaign?

In Nigeria's 2003 polio vaccination campaign, Muslim religious leaders in three northern states boycotted the campaign citing mistrust of Western medicine. The boycott led to new polio cases in Nigeria. Ayodele Samuel Jegede suggests examining this event within historical and political contexts.

Laying sleeping sickness to rest

Researchers have identified a novel pathway in Trypanosoma brucei parasites that can be triggered to shut down the synthesis of a crucial RNA molecule, leading to parasite death. This discovery has implications for eradicating other parasitic diseases such as Leishmania and Chagas disease.

Researcher to determine why oil still remains from Exxon Valdez

A recent study reveals that oil levels in Prince William Sound's sands remain unchanged since tests five years ago, with oil seeping down 4-10 inches. Researchers will conduct field studies to understand the motion of water and effects of waves on beaches, focusing on micro-organism limitations and environmental factors.

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.

Why is long-term therapy required to cure tuberculosis?

TB patients must take long-term therapy due to a correlation between bacterial burden and time to cure. Researchers suggest that non-replicating bacteria are not TB-specific and that understanding this phenomenon can lead to shorter treatment durations for recalcitrant bacterial infections.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Protein structures for the entire yeast proteome

Researchers predicted 3D structures for yeast proteins using de novo methods and integrated with biological data, providing a global view of protein relationships. The study assigned domains to families of evolutionarily related proteins, generating testable hypotheses about their mechanisms of action.

One small step for Deinococcus or one giant leap for radiation biology?

Researchers found that radiation-resistant bacteria like Deinococcus radiodurans are protected from protein damage by a chemical mechanism involving manganese ions. This new model of radiation toxicity highlights the importance of protein protection in bacterial survival, contradicting traditional views that prioritize DNA damage.

Increased depression, burden, reported in family caregivers of ALS patients

A study published in Neurology found that family caregivers of people with ALS experienced significant increases in depression and feeling burdened over nine months, while those with the disease showed little change. This highlights the need for interventions to enhance communication between patients and caregivers.

Infants are able to detect the 'impossible' at an early age

Researchers found that infants looked significantly longer at impossible figures, indicating they can detect some three-dimensional features at a young age. This ability provides insights into the development of mechanisms for processing pictorial depth cues.

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.

Computer imaging assists with facial reconstructive surgery

A new calibration technique helps plastic surgeons use computer imaging software to analyze and balance facial features before and after surgery. The study found that patients who underwent combined rhinoplasty and chin correction showed improvements in facial proportions, with increased distances between key landmarks.

Your mom was wrong: Horseplay is an important part of development

Rough and tumble play in animals has been linked to improved social competence and coordination. The study found that deprivation of peer interaction led to impaired movement coordination and perception of social cues in rats. These findings suggest that horseplay is essential for the development of social skills in humans.

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.

Antibiotics appear to be overprescribed for sinus infections

A recent study found that antibiotics are prescribed for approximately 82% of acute and chronic sinus infections, despite viruses being the most frequent cause. This overprescription has significant concerns, including drug resistance and virulent bacteria, as well as increased healthcare costs.

Chemosensitive p53-mutant breast cancers

Studies found that TP53 mutant tumors in breast cancer are sensitive to a dose-dense epirubicin-cyclophosphamide chemotherapy regimen. This suggests the regimen may be effective for patients with these specific tumor types.

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.

Drug helps prevent hip fractures in Parkinson disease

A two-year study found that the drug risedronate reduced hip fractures in people with Parkinson disease by three times compared to placebo. Risedronate also increased bone mineral density and decreased biomarkers for bone loss, effectively controlling osteoporosis progression.

Software pinpoints traffic accident 'hotspots'

The Ohio State University software analyzes crash data to pinpoint traffic accident hotspots, revealing surprising patterns such as increased speeding accidents during weekday rush hours. The tool also indicates that drunk-driving accidents tend to occur on specific interstates and routes near major cities.

Where should I have my outpatient surgery?

Researchers at the University of Pennsylvania's School of Medicine identified key risk factors associated with increased hospital admission rates following outpatient surgery. These risk factors include age, operating time, cardiac diagnoses, and certain medical conditions.

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.

A calculation the size of Manhattan

The mapping of E8 by 18 leading mathematicians and computer scientists represents a significant breakthrough in basic knowledge and large-scale computing. The result is an enormous, dense calculation that compares in size to the human genome project.

1 surgery better than 2 for some colorectal cancer patients

Researchers found simultaneous surgeries on colon and liver may reduce length of hospital stay and surgical complications without compromising long-term survival. In certain patient groups, simultaneous surgery was as safe as separate surgeries, potentially leading to better outcomes.

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.

World first in medical robotics

Researchers at École Polytechnique de Montréal have successfully guided a microdevice inside an artery using computer control and a clinical MRI system. The breakthrough could enable interventional medicine to target inaccessible sites using nanorobots.