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Science News Archive 2007


Page 18 of 203

New perspectives on health disparities in breast cancer research

Researchers present findings on how poverty affects cancer prognosis, ethnicity influences medical care, and genetics impact survival rates among different groups of women. A study reveals African-American women face poorer disease-free survival rates due to racial-specific biology, prompting a reevaluation of screening guidelines. Mea...

National Institutes of Health grant to fund drug abuse research at UH

The University of Houston will receive a five-year, $2.3 million National Institutes of Health grant to fund a multidisciplinary approach to drug abuse research. The grant will focus on the health and social consequences of drug abuse among aging minority populations, with a particular emphasis on Latino injecting heroin users in the H...

Cold treatment opens doors for citrus exports to Japan

Citrus growers in eastern Australia can now export to Japan with greater market flexibility thanks to the development of cold storage regimes effective against fruit fly. The new method kills Queensland Fruit Fly in citrus stored for 14-16 days at temperatures of 2° or 3°C, reducing damage and improving fruit quality.

Apple iPhone 17 Pro

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

Transporters may help delay diabetes-related retinal damage

Two transporters, SMCT1 and SMCT2, can circumvent the blood-retinal barrier to deliver lactate and ketone bodies to a healthy eye, potentially preventing neuronal cell damage. Understanding these transporters' activity may enable early diagnosis of diabetic retinopathy and natural delivery mechanisms for drugs.

A molecular map for aging in mice

Researchers created a molecular map of aging in mice by analyzing gene expression changes in 16 different tissues. The study found that different tissues exhibit distinct patterns of aging, suggesting three separate clocks for aging, and that some pathways are shared with human aging.

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.

Use it or lose it

Research by The Peninsula College of Medicine and Dentistry found that maintaining physical activity in middle age leads to better basic physical abilities as we age. Physical activity is associated with fewer than 13% of people developing physical disability. Weight is not a deciding factor in this benefit.

ONR presents Bowen Award for composite materials test method

Engineers Dr. Colin P. Ratcliffe and Dr. Roger M. Crane developed SIDER, a nondestructive testing method for detecting flaws in composite materials. The method involves tapping the material with a specialized 'hammer' and recording data from mechanical vibrations.

Limited biofuel feedstock supply?

Researchers report that sustainable biomass production may be hindered by soil organic matter needs, suggesting a need for alternative crops and improved agricultural practices. The study highlights the importance of considering multiple factors beyond just soil erosion when evaluating feedstock supply.

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.

Organic 'building blocks' discovered in Titan's atmosphere

Researchers found heavy negative ions in Titan's upper atmosphere, which may form complex molecules essential for life. The discovery poses questions about atmospheric chemistry and aerosol formation, suggesting that these ions form in the upper atmosphere before reaching the surface.

Eltrombopag studied in Idiopathic Thrombocytopenic Purpura

A Phase 2 study found that eltrombopag elevated platelet counts to a safe level in over 75% of chronic ITP patients within two weeks, reducing bleeding symptoms. The therapy also showed similar incidence and severity of adverse effects compared to the placebo group.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Group selection, a theory whose time has come ... again

David Sloan Wilson and Edward O. Wilson propose a new consensus and theoretical foundation for sociobiology, affirming Darwin's original conjecture that natural selection is a multilevel process. They show that adaptations can evolve at all levels of the biological hierarchy, from genes to ecosystems.

'Stereo' mammography takes breast imaging to a new dimension

Stereo mammography has been shown to reduce false positives by 49% compared to standard digital mammography, potentially cutting the number of women recalled for additional tests. The technology produces three-dimensional views of breast tissue, allowing radiologists to better interpret images and detect cancer earlier.

Drug boosts platelets in hepatitis C patients

Researchers found that eltrombopag boosted platelet counts in a majority of patients with low platelet counts and cirrhosis due to HCV infection, allowing most to continue or start conventional antiviral treatment. The study's results are an important development for people infected with the hepatitis C virus worldwide.

Meta Quest 3 512GB

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

Drug monitoring reduces seizures in pregnant women with epilepsy

Research shows that therapeutic drug monitoring of lamotrigine during pregnancy significantly reduces seizure activity and improves fetal health. The study found that adjusting dosages based on blood levels can prevent increased seizure frequency and ultimately improve the health of both mother and baby.

UNH scientists report first findings on key astrophysics problem

Researchers found energetic electrons most abundantly at sites of compressed density within magnetic islands, contradicting previous theories. This discovery provides an important step towards solving the mystery of electron acceleration during magnetic reconnection.

Monitoring of a common epilepsy drug during pregnancy reduces seizure risk

Research at Emory University found that therapeutic drug monitoring for lamotrigine during pregnancy reduces increased seizure activity and improves health outcomes. The study's findings suggest a potential benefit for pregnant women with epilepsy, allowing for targeted dosage adjustments to minimize risk.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Foot-and-mouth disease could cost Kansas nearly a billion dollars

A K-State study predicts devastating economic impacts if foot-and-mouth disease were to occur in Kansas, with estimated losses of $36 million, $199 million, and $945 million for the state. The study analyzed three scenarios and found that larger outbreaks would result in longer durations and greater economic ruin.

Blue dye could hold the key to super processing power

Scientists have developed a method to control the magnetic properties of a commonly used blue dye, Metal Phthalocyanine, which could significantly improve information processing. The technique uses magnetism to regulate interactions between molecules, offering potential benefits for spintronics and quantum computing.

Study of malaria parasites reveals new parasitic states

Scientists discovered three biological classes of malaria parasites with distinct metabolic states, including one linked to patient symptoms. The findings suggest a possible correlation between parasite behavior and disease severity.

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.

Jefferson scientists see breast cancer gene activity from outside the body

Scientists at Jefferson Medical College have used PET imaging to observe hyperactive breast cancer genes in laboratory animals, marking a breakthrough in detecting and classifying cancer. This technology may help physicians identify breast tumors as early as possible and determine the appropriate treatment.

CT scans to determine heart disease in the emergency room

A study presented at RSNA suggests that CT scans can diagnose heart disease in low-risk patients, reducing hospital stays from 12 hours to just over 9 hours. This could lead to significant cost savings and improved resource utilization in emergency departments.

Radiation exposure of pregnant women more than doubles in 10 years

The study found a 121% increase in imaging exams performed on pregnant women between 1997 and 2006, with the greatest increases seen in CT exams. The researchers estimated that pregnant women are exposed to low but potentially harmful levels of radiation during these exams.

Drinking and smoking don't boost HPV-related cancer risk

New study reveals that alcohol and tobacco use do not increase the risk of head and neck cancers in people infected with HPV16, a common strain of the sexually-transmitted virus. The findings suggest two distinct causes for these major cancers, requiring different prevention and treatment strategies.

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.

Scientists identify gene responsible for statin-induced muscle pain

A study by Beth Israel Deaconess Medical Center has identified the atrogin-1 gene as a key player in statin-related muscle toxicity. The researchers found that statins activate this gene, leading to muscle damage and atrophy, with potential implications for patients taking these cholesterol-lowering drugs.

New model predicts breast cancer risk in African-American women

A new risk prediction model for African American women has been developed and tested, providing more accurate estimates of breast cancer risk compared to the widely used Gail model. The model, known as CARE, accurately predicted the number of cancers observed in African American women in most subgroups.

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.

Catalyst-free chemistry makes self-healing materials more practical

Researchers at the University of Illinois have developed a new, catalyst-free approach to create self-healing materials that can repair cracks in composite materials. The new system uses chlorobenzene microcapsules to restore structural integrity, with fracture tests showing a 82% recovery of original fracture toughness.

Stem cells train heart following heart attack

Using adult human stem cells, researchers found that the treated hearts contained more blood vessels and exhibited increased DNA repair activity. The study suggests that these stem cells have an instant stimulating effect on surrounding heart tissue following transplantation.

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.

UK Politics and International Studies rated as world class

The UK Politics and International Studies research has been rated as world-leading according to a new report by the ESRC, PSA, and BISA. The discipline excels in areas such as political theory, electoral studies, and European Union studies.

MIT: Stem-cell therapies for brain more complicated than thought

A recent study by MIT scientists suggests that adult stem cells produced in the brain can only make limited connections, making it challenging to use them for replacement therapy. The research calls into question the potential of using adult stem cells to repair damaged brain tissue and replace lost neurons.

Another complication for gastric bypass patients

A study found that approximately 27% of obese gastric bypass patients weighing over 450 pounds were denied standard diagnostic imaging due to weight restrictions. This can lead to delayed diagnosis and compromised patient care.

New automated system IDs victims of mass disasters in minutes

A new automated dental radiograph matching system can reduce the task of forensic experts by up to 95% and produce matches at an average rate of less than four seconds. The system uses Phase-Only Correlation technology to align images and measure their similarity, resulting in a significant reduction in time spent on identification.

Fluke 87V Industrial Digital Multimeter

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

Job-related stress: NIST demonstrates fatigue effects in silicon

Researchers at NIST have shown that silicon crystals can develop cracks and breakdown under mechanical stress, contrary to conventional wisdom. The team's findings have significant implications for the design of micro-electromechanical system (MEMS) devices, which are critical components in various industries.

NASA-conceived map of Antarctica lays ground for new discoveries

The newly completed map of Antarctica is a result of NASA's state-of-the-art satellite technologies, offering the most geographically accurate and high-resolution views of the continent. The Landsat Image Mosaic of Antarctica will enable researchers to better plan scientific expeditions and help scientists map various rock formations.

Forensics go high-tech with CT autopsies

Computed tomography (CT) autopsies have been shown to be a sensitive tool for detecting injuries and cause of death in victims of blunt trauma. In a study comparing CT with conventional autopsy, CT accurately identified the cause of death in all 14 blunt trauma cases and five out of six penetrating wounds.

MRSA in the community: A new threat to children's health?

New community-associated MRSA strains have emerged, spreading amongst the public in the USA, and are now a concern for children's health. These strains produce a toxin called PVL, leading to severe infections with high mortality rates if left untreated.

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.

NIST measures performance of auto crash warning systems

Researchers developed an independent measurement system using cameras, microphones, and laser scanners to evaluate the performance of advanced collision warning systems. The NIST technology detected objects within eight-tenths of a meter from up to 60 meters away at speeds of up to 56 mph.

Studies suggest HIV subtype more deadly than others

Two studies led by Johns Hopkins Bloomberg School of Public Health researchers suggest that HIV subtype E is more virulent than other subtypes, leading to significantly shorter survival rates in Thailand. The studies found a median survival time from infection to death of 7.8 years for Thai men, compared to 11 years globally.

Other Highlights in the Nov. 27 JNCI

Male BRCA1 and BRCA2 mutation carriers have a higher risk of developing breast cancer compared to noncarriers. A high carbohydrate diet may also promote prostate tumor growth in mice, while infection with human papillomavirus (HPV) is associated with an increased risk of head and neck cancers but does not further increase the risk when...

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

PET imaging may improve lung cancer diagnosis

A systematic review of recent studies suggests PET imaging can accurately diagnose and stage lung cancer, even in early stages. The imaging modality is found to be more accurate than CT imaging for treatment decisions in non–small-cell lung cancer patients.

Blood-vessel blocker aids cancer-killing virus

Researchers found that blocking blood vessel growth with an antiangiogenic agent can reduce inflammation and improve antitumor efficacy of oncolytic virus therapy. This approach may increase survival rates for patients with aggressive brain tumors.