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Science News Archive August 2012


Page 15 of 29

Evolutionary increase in size of the human brain explained

The human brain's unique cognitive capacity is attributed to a specific protein domain, DUF1220, which has more copies in humans than other species. The protein's dosage is linked to brain size, with higher numbers associated with macrocephaly and lower numbers with microcephaly.

Hubble watches star clusters on a collision course

Astronomers using Hubble data observe two massive star clusters in the Large Magellanic Cloud that may be in early stages of merger. The discovery sheds light on the origin of large star clusters and helps scientists understand galaxy formation.

Virus throws a wrench in the immune system

Research reveals long-term consequences of chronic CMV infection on the immune system, including weakened responses to other viruses and increased susceptibility to infections. The study shows that prolonged CMV presence contributes to immune ageing, making older individuals more prone to infectious diseases.

Enzalutamide adds 5 months survival in late-stage prostate cancer

A phase III clinical trial shows Enzalutamide extends life by five months, with significant survival benefits and reduced side effects compared to traditional chemotherapy. The study also reveals improved measures including PSA blood levels and progression-free survival.

Apple iPhone 17 Pro

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

What's best for very low birth weight babies

A new study found that VLBW infants fed more than 75% human milk grew slower than those fed less than 75%. Fortifying human milk with protein and calories can help improve growth rates. The research suggests that a balanced approach is necessary to provide the benefits of human milk without sacrificing growth.

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.

Pan-fried meat increases risk of prostate cancer, new study finds

A recent study published in Carcinogenesis found that cooking red meats at high temperatures, especially pan-frying, increases the risk of advanced prostate cancer. Men who consumed more than two servings of red meat cooked at high temperatures were 40% more likely to develop advanced prostate cancer.

Molecular 'movies' may accelerate anti-cancer drug discovery

Computer simulations shed light on the dynamic structure of the LSD1/CoREST protein complex, a major target for therapies. The study reveals that binding to histone H3 triggers significant changes in shape, which may help develop epigenetic drugs that reprogram cancer cells.

B cell survival holds key to chronic graft vs. host disease

Researchers found that B cells from patients with chronic GVHD are more active and resistant to programmed cell death. The study identifies BAFF as a promising target for developing new therapies, such as anti-BAFF agents or small molecule inhibitors.

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.

Nature: Electronic read-out of quantum bits

Scientists have developed a molecular spin-transistor that can read out the quantum state of an atom, paving the way for more stable and controlled quantum computing. The device, which uses electrodes to detect changes in the atomic spin, can maintain stability for up to 20 seconds.

Climate and drought lessons from ancient Egypt

Scientists used fossil pollen to augment historical records of ancient Egyptian droughts and fires, including a massive 4,200-year-old drought that contributed to the demise of Egypt's Old Kingdom. The study provides insights into the evolution of societies tied to climate variability.

Genes carried by E. coli bacteria linked to colon cancer

Scientists have identified a link between E. coli bacteria and colon cancer, with approximately two-thirds of patients with colon cancer carrying specific strains of the bacteria. The bacteria carry pks genes that produce a toxin that damages DNA in the gut lining, promoting cancer development.

Turmeric spices up virus study

Researchers at George Mason University discovered that curcumin from turmeric can stop the Rift Valley Fever virus from multiplying in infected cells. The study suggests that curcumin-based pharmaceuticals could be used to treat devastating viruses like HIV.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Tibetan Plateau may be older than previously thought

Researchers suggest that the Tibetan Plateau's growth of high topography began around 30 million years ago, contrary to previously held beliefs. This new finding was made possible by analyzing samples from the eastern edge of the plateau using various geological methods.

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.

Soft robots, in color

Researchers have created a system inspired by nature that allows soft robots to change their appearance, including camouflage against backgrounds or displaying bold colors. This technology could be used in various applications such as search and rescue operations, medical surgeries, and even signaling robots' position.

Bird louse study shows how evolution sometimes repeats itself

A recent analysis of avian feather lice reveals that their ancestors first colonized a particular group of birds and then radiated to different habitats, evolving into distinct species. The study found striking similarities in the adaptations of lice living in specific habitats on birds, which are attributed to convergent evolution.

Finally, the promise of male birth control in a pill

Researchers have discovered a compound that reversibly infertile men without affecting their sex drive, using the small molecule to target fertility proteins. The new form of birth control works by reducing sperm count and motility, making it an effective and novel strategy for male contraception.

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.

Why are elderly duped? UI researchers explain why

Researchers identify ventromedial prefrontal cortex as key area controlling belief and doubt, explaining why elderly are more prone to scams. Damage to this region, particularly after age 60, can lead to increased credulity and decreased ability to distinguish misleading information.

Brain scans don't lie about age

Researchers used MRI to scan brains of 885 people and identified 231 biomarkers that capture age differences well, surpassing previous biological measures. The findings suggest a 'developmental clock' in the brain, tightly controlling certain anatomical aspects of development.

Democracy works for Endangered Species Act, study finds

A study finds that citizens do a better job of picking threatened species than the US Fish and Wildlife Service. Citizen-initiated listings are more likely to pose conflicts with development, but those species are also significantly more threatened on average.

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.

New treatment offers hope to patients with chronic lung disorder bronchiectasis

Researchers have identified a promising new treatment for non-cystic fibrosis bronchiectasis, which reduces the frequency of exacerbations and increases time to first exacerbation. The treatment, azithromycin, has shown benefits persisting for six months after completion, offering a new option for patients with this debilitating disease.

Yoga: A cost-effective treatment for back pain sufferers?

A 12-week group yoga intervention programme has been found to be likely to provide a cost-effective treatment for patients with chronic or recurrent low back pain. The study, led by the University of York, shows that the programme is associated with fewer days off work and reduced healthcare costs.

Meta Quest 3 512GB

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

Small molecule may provide direction to quest for male contraceptive

A new direction in research for male contraceptives has been identified using the small molecule JQ1, which blocks chromatin remodeling necessary for sperm production. Studies show that mice treated with JQ1 have lower sperm counts and reduced sperm motility, paving the way for potential development of a male contraceptive pill.

What's your lifetime risk of developing kidney failure?

A study estimates that approximately 1 in 93 men and 1 in 133 women of middle age may develop kidney failure in their lifetime. People with reduced kidney function face a higher risk, with men facing a 7.51% chance and women a 3.21%.

Secrets of 'SuperAger' brains

Researchers identified a group of elderly people with exceptional memories and brains that resemble those of middle-aged individuals. Their cortex thickness and attention region were found to be thicker than normal aging peers, suggesting a greater number of neurons and potentially improved cognitive abilities.

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.

Children's self-control is associated with their body mass index as adults

A new study published in The Journal of Pediatrics finds that children who delayed gratification longer at 4 years old had lower body mass indexes (BMI) as adults. Researchers followed up with 164 participants, now in their mid-30s, and found a significant association between childhood self-control and adult BMI.

Common parasite may trigger suicide attempts

A study published in The Journal of Clinical Psychiatry found that individuals infected with the T. gondii parasite are seven times more likely to attempt suicide. The researchers also discovered that the parasite can cause inflammation in the brain, leading to changes in brain chemistry and potentially contributing to depression.

NASA sees System 93L explode into Tropical Storm Gordon

Tropical Depression 8 strengthened into Tropical Storm Gordon on August 15, after days of organization and development across the eastern Atlantic. The storm is expected to track east into the Atlantic, potentially affecting the Azores, with strengthening expected over warm waters.

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.

A male contraceptive pill in the making?

Researchers at Dana-Farber Cancer Institute and Baylor College of Medicine developed a small molecule compound, JQ1, that generates reversible birth control in male mice by disrupting spermatogenesis. The study showed a decrease in sperm count and quality without affecting testosterone production or offspring health.

Taking the edge off a pipe bomb -- literally

The Semi-Autonomous Pipe Bomb End-cap Remover (SAPBER) is a low-cost device that can disassemble pipe bombs while preserving forensic evidence. It has been tested in operational scenarios and shown to be effective and easy to use, marking a new era in capability for dealing with pipe bombs.

Invasive brittle star species hits Atlantic Ocean

The invasive Ophiothela mirabilis has established populations in the Atlantic, threatening coral reefs near Brazilian and Caribbean ports. Its ability to clone itself increases its proliferating capacity and dispersal, altering the ecology of Atlantic coral reef habitats.

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.

Multi-dimensional brain measurements can assess child's age

A team of researchers at UC San Diego developed a multi-dimensional set of brain measurements that can accurately assess a child's age. The study, published in Current Biology, shows that the 'developmental clock' within the brain captures age differences well regardless of individual variability.

Psychopaths get a break from biology

A University of Utah study found that judges consider a psychopath's biology when sentencing. If given biological explanations for the disorder, they reduce the sentence by about a year on average. However, this doesn't necessarily mean judges let defendants off easy, but rather show major changes in their reasoning.

Fluke 87V Industrial Digital Multimeter

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

Could FastStitch device be the future of suture?

The FastStitch device, developed by Johns Hopkins undergraduates, features a cross between a pliers and a hole-puncher to guide stitch placement and prevent accidental punctures. The device has already received recognition and funding to move forward, aiming to simplify and improve the closure process for surgeons.

Researchers hope to transform software engineering training

A study will assess software engineering students' teamwork skills using objective and quantitative measures, developing software models that predict team success. The research aims to provide advice to teachers and industry leaders on managing teams, emphasizing the importance of 'soft skills',

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.

Poxviruses defeat antiviral defenses by duplicating a gene

Researchers discovered that poxviruses can rapidly produce multiple copies of a gene to counter host defenses, allowing them to quickly adapt and evolve. The study provides new insight into the mechanisms of adaptation for large double-stranded DNA viruses.