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Science News Archive 2009


Page 208 of 277

Diabetes drug class linked to vision-threatening complication

A large study found that glitazone diabetes drugs increase the risk of diabetic macular edema by 60%, a condition that can lead to progressive visual loss. The study's results suggest that ophthalmologists should consider the role of glitazones when treating patients with DME.

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.

Protein protects neurons in brain from damage due to inflammation

A study by University of California, San Diego researchers identified a protein called Nurr1 that protects neurons from excessive inflammation, which can lead to neurodegenerative disorders like Parkinson's disease. The protein's protective function was found to involve shutting off inflammatory responses in microglia and astrocytes.

NOAA: Ice-free Arctic summers likely sooner than expected

The Arctic is expected to lose four-fifths of its summer sea ice, reducing it from 4.6 million square kilometers to 1 million, with warming temperatures contributing to the decline. This rapid change is attributed to natural variability and increased greenhouse gases.

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.

Gaining new insights into mentoring programs for adolescent girls

A study of a Big Brothers Big Sisters formal mentoring program found that adolescent girls benefit from relationships with female mentors, gaining emotional support and new skills. The study, led by Renee Spencer at Boston University, involved in-depth interviews of 12 pairs of girls and women mentors.

Researchers unravel role of priming in plant immunity

Researchers found a naturally occurring compound, azelaic acid, that primes plants' immune systems, allowing them to mount faster and stronger defense responses. The compound, already tested in humans for skin conditions, could lead to an inexpensive and environmentally safe way to improve crop resistance.

Parents' sexuality influences adoption choices

A study published in Springer's Sex Roles journal found that gay men are more likely to prefer adopting a boy, while heterosexual men are the least likely. Heterosexual couples tend to prefer girls over boys, with reasons varying by sexuality, including patriarchal norms and perceived socialization challenges.

Robot scientist becomes first machine to discover new scientific knowledge

A team of scientists at Aberystwyth University has created a Robot Scientist named Adam that independently discovered new scientific knowledge about the genomics of baker's yeast. The robot used artificial intelligence to hypothesize, test, and interpret results, demonstrating its potential for automating scientific processes.

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.

Early family ties: No sponge in the human family tree

A comprehensive study resolves decades-long debates on early animal relationships, revealing that sponges and comb jellies share a common group with bilaterians. The research also sheds light on the evolution of nervous systems, suggesting they developed only once in animal history.

Well-timed timeout effective in wiping out fear memory response

Researchers at the University of Texas at Austin have discovered a method to manipulate memories of fear by timing the extinction process. By targeting the labile state of fear memories after retrieval, they found that rats exhibited reduced fear responses and smaller chances of spontaneous memory resurfacing. This breakthrough could l...

Diseased cartilage harbors unique migratory progenitor cells

A new study identifies chondrogenic progenitor cells (CPCs) in late-stage osteoarthritis cartilage with migratory capabilities and tissue-specific stem cell characteristics. The CPCs may be recruited to degenerating cartilage, offering a potential regenerative therapy for arthritis.

Meta Quest 3 512GB

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

Interactive Autism Network opens its doors to adults with autism

The Interactive Autism Network is expanding its research initiative to adults with autism, enrolling individuals to gain insight into their experiences and connect them with researchers. The IAN Project aims to provide much-needed data on the lives of adults with autism, addressing a significant unmet need.

Lead in the blood increases women's mortality

A study of 533 American women found that those with blood lead concentrations above 8μg/dL were three times more likely to die of coronary heart disease. The research adds to the existing evidence on the adverse effects of lead on health, particularly among older cohorts exposed to higher levels of environmental lead.

Nimbus and cloud computing meet STAR production demands

Researchers at Brookhaven National Laboratory used Nimbus cloud computing infrastructure to dynamically provision virtual clusters on commercial cloud computers, enabling faster simulation results for the Quark Matter physics conference. The successful collaboration demonstrates the potential of virtualization and cloud computing for r...

Apple iPhone 17 Pro

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

Cancer stem cells generated by cancer outgrowth

Researchers discovered that growing mouse skin cells in spheres can lead to generation of cells with properties of cancer stem cells. The study found that mutation of the retinoblastoma tumor suppressor gene family led to reprogramming of differentiated cells into cancer stem cells.

Artificial pump effectively backs up failing hearts

A new, smaller, and lighter implantable heart pump has been shown to be effective in bridging patients with severe heart failure to eventual transplantation. The device, called a left ventricular assist device (LVAD), was tested on 98 patients and found to improve their quality of life and survival rates.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

MIT virus battery could power cars, electronic devices

Researchers at MIT have successfully engineered viruses to build a cathode material, leading to the creation of a highly powerful and conductive lithium-ion battery. The virus-produced batteries demonstrate improved energy capacity and power performance compared to traditional rechargeable batteries.

New storage system design brings hydrogen cars closer to reality

Researchers have created a hydrogen storage system that can fill up a vehicle's fuel tank within five minutes with enough hydrogen to drive 300 miles. The system uses metal hydride to absorb hydrogen gas and incorporates a heat exchanger to efficiently remove heat generated during absorption.

MIT: Novel needle could cut medical complications

Developed by MIT engineers, the device uses a hollow S-shaped needle with a guide filament to keep injections on target. This prevents needles from penetrating too far under the skin and reduces medical complications.

Death of a child in the neonatal intensive care unit

Researchers found similarities among surviving siblings, including confusion and a lack of family communication about the child's death. The study highlights the importance of psychological counseling for family members to cope with grief in the NICU setting.

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.

Researchers find current drug can treat rare heart disorder

Researchers have discovered a potential treatment for Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT), a rare inherited heart disorder that causes sudden cardiac deaths. Flecainide, a drug used to treat heart arrhythmias, has been found to reduce calcium release in heart cells, counteracting the cause of CPVT.

Journal of Correctional Health Care accepted in Medline

The Journal of Correctional Health Care has been accepted into the premier bibliographic database MEDLINE, making its research and case studies more accessible to a vast audience. The journal, published by SAGE on behalf of NCCHC, addresses correctional health care topics through original research, best practices, and literature reviews.

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.

Weight at birth tied to heart disease and diabetes risk in adulthood

A new study found that babies born with lower weight are more likely to develop chronic diseases like heart disease and diabetes later in life due to increased inflammation. Researchers followed over 5,600 children from birth to adulthood, finding a link between early growth and adult inflammation.

Activation of the prefrontal cortex improves working memory

A study by IDIBAPS reveals that prefrontal cortex activation improves working memory by reinforcing parietal cortex activity, enhancing short-term visual information retention. This innovative view opens up new research avenues, particularly for understanding and treating diseases affecting working memory.

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.

Distinguishing single cells with nothing but light

Researchers at the University of Rochester have developed a novel optical technique called IRAM that enables rapid analysis of single human immune cells using only light. This technique allows for clear differences between two types of immune cells to be seen, providing new insights into cell activation and development.

Ali Shilatifard and colleagues aim to clarify the definition of 'epigenetics'

Researchers propose an operational definition of 'epigenetics' to address confusion in the scientific community. They define it as stably inherited phenotypes resulting from changes in chromatin without altering DNA sequences. The proposed definition highlights three signals involved in establishing a heritable epigenetic state.

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.

A hot solution to bean sprout safety

A natural method of disinfecting mung bean seeds using hot water has been discovered, killing bacterial pathogens like Listeria monocytogenes without reducing germination rates. This method is suitable for organic production systems and could help prevent food poisoning outbreaks.

Active component of marijuana has anti-cancer effects

Research suggests that THC induces autophagy-mediated cell death in human brain cancer cells, including glioblastoma multiforme. Administration of THC to mice with human tumors decreased tumor growth and induced autophagy in tumor cells.

Einstein scientists propose new theory of autism

Researchers suggest that autism symptoms may be reversible due to dysregulation of the locus coeruleus, a bundle of neurons processing sensory signals. The new theory proposes that fever can stimulate this system, potentially restoring its normal function.

Researchers peer into nanowires to measure dopant properties

By using atom probe tomography, researchers have provided an atomic-level view of the composition of a nanowire, allowing for precise measurement of dopant atoms and understanding of synthesis conditions. This breakthrough enables control over electronic properties of nanowire devices, paving the way for improved device performance.

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.

Seismology tip sheet for April

Researchers linked pre-historic seismic events on the San Andreas Fault to assess likelihood of future great ruptures. Analysis suggests several events similar to a historical earthquake occurred since A.D. 900 on the southern San Andreas fault.

ADA releases updated position statement on functional foods

The American Dietetic Association supports the consumption of fortified foods as part of a balanced diet to reduce disease risk and promote optimal health. The organization encourages further research into the health benefits and risks of individual functional foods, advocating for evidence-based health claims on food labels.

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.

Iowa State chemist synthesizes carbohydrates, launches startup company

Nikki Pohl's breakthrough technology can produce complex carbohydrate molecules in 24 hours at a fraction of the cost of current methods. The startup company, LuCELLa Biosciences Inc., plans to develop an online catalog and sell custom-order carbohydrates to researchers and pharmaceutical companies.

JCI online early table of contents: April 1, 2009

Researchers found that cannabinoids like THC have anticancer effects on human brain cancer cells by inducing autophagy. Additionally, lithium was shown to protect hippocampal nerve cells in mice treated with cranial radiation therapy, suggesting it may be a new approach to reducing long-term neurological side effects.

Ovarian cancer screening not catching early disease

A new study found that ultrasound and blood test screening for ovarian cancer only catches the disease in its late stages, resulting in unnecessary surgery. The positive predictive value of these tests is remarkably low, leading to many false positives.

Increase in p53 mutation linked to advanced colorectal cancer in blacks

Researchers found a possible genetic cause for increased risk of advanced colorectal cancer in African-Americans, with the Pro72 allele linked to higher mortality rates. The study analyzed 137 tumors and found that African-Americans had a higher frequency of this allele, which was associated with shorter survival rates.

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.

Mollusks taste memories to build shells

Researchers developed a computer program that replicates complex seashell patterns using simple principles from brain function. The 'neural net' model shows how mollusks sense and build their shells based on previous layers, much like the human brain projects memories.

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.