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Science News Archive May 2012


Page 5 of 31

Why chemotherapy fails

A study by Weizmann Institute scientists reveals that leukemia recurrence is often caused by 'cancer stem cells' that divide slowly, evading chemotherapy drugs. These cells can give rise to new rapidly-dividing cancer cells, making them a key target for new treatment approaches.

After 25 years, World No Tobacco Day is making an impact

A new study found that World No Tobacco Day significantly increases interest in quitting smoking, with cessation news coverage and Internet search queries peaking on the anniversary day. The research also suggests that low- and middle-income countries can benefit from increased awareness and inspiration to quit tobacco.

DFG establishes 20 new Collaborative Research Centres

The DFG is establishing 20 new Collaborative Research Centres to tackle ambitious, long-term projects. The centres aim to improve our understanding of stress responses, develop new therapies for multiple sclerosis, and increase efficiency in gas turbines.

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.

Tendency of operational routines to falter is widespread but fixable

A new study by a University of Illinois expert reveals that operational routines tend to move towards higher entropy due to complacency and lack of checks and balances. The research also found that mergers can cause decay in adherence to routines, while acquisitions by healthier firms can serve as a renewal.

Defense funding awarded to 4 Scripps Oceanography researchers

The Navy awarded nearly $4.5 million to six research projects led by Scripps Institution of Oceanography researchers, including Eric Terrill, to acquire instruments from California and Massachusetts manufacturers. The funding will support studies in coastal oceanography, deep-ocean acoustics, and other areas.

Cancerous tumors deliver pro-metastatic information in secreted vesicles

Researchers discovered that cancer cells release exosomes containing pro-metastatic proteins that fuse with distant organs, establishing a nurturing environment for tumor growth. This discovery offers fresh diagnostic and treatment potential, including the use of exosomal protein profiles to predict tumor aggressiveness.

Speeding up drug discovery with rapid 3-D mapping of proteins

Researchers at Salk Institute create cell-free expression system to synthesize and analyze integral membrane proteins, solving their three-dimensional structures in just 18 months. This breakthrough enables precise biochemical mechanisms understanding and targets the proteins with new drugs.

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.

Study finds emissions from widely used cookstoves vary with use

A new study found that emissions from cookstoves are highly dependent on how they are used, and laboratory tests do not accurately reflect real-world operations. The research team developed a real-time analysis technique called Patterns of Real-Time Emissions Data (PaRTED) to measure emissions under different operating conditions.

Community and health system approaches improves mental health in Afghanistan

A case study from Afghanistan reports a substantial increase in mental health consultations, from 659 to 20,000, after integrating psychosocial problems into basic health services. The authors argue that concurrent community-based approaches and capacity building are crucial for fostering structural changes within the healthcare system.

Leading statistician receives national citation award

Walter and Eliza Hall Institute researcher Professor Terry Speed was awarded the 2012 Thomson Reuters Citation Award in Biochemistry and Molecular Biology. His research has been cited more than other Australian researchers, with applications to infection, immunity, inherited diseases, and cancer.

Apple iPhone 17 Pro

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

Why do Scots die younger?

A study published in Public Health found that Scotland's higher mortality rates may be linked to the political direction of past decades, rather than single factors like smoking or poor diet. The researchers identified a range of potential explanations, including climate change and economic inequality.

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.

New federal disclosure law may have little impact on drugs prescribed

A Colorado School of Public Health researcher found that a new federal disclosure law has little effect on the prescribing of certain medications, including statins and SSRIs. The study suggests that transparency is important but may not be enough to deter physicians from accepting payments from pharmaceutical companies.

Short movies stored in an atomic vapor

Researchers at Joint Quantum Institute store and replay two separate images, a feat of cinematography, using a room-temperature vapor of atoms. The new storage process has great promise for quantum information and may lead to the development of a random access memory for continuous variable quantum information.

New drug strategy attacks resistant leukemia and lymphoma

Scientists develop a synthetic peptide that disables cancer cells' survival defenses by targeting protein targets, suppressing cancer growth in mice. The compound's synergistic anti-cancer activity with other drugs holds promise for treating relapsed and refractory blood cancers.

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.

Gum disease joins hot flashes and PMS associated with women's hormones

A comprehensive review by Charlene Krejci found female hormones fluctuate throughout women's lives, allowing bacteria to grow and exacerbate conditions like bone loss and pre-term births. Women need to be vigilant about maintaining healthy teeth and gums to prevent or lessen severity of these health issues.

Embargoed news from Annals of Internal Medicine

The American College of Physicians Task Force recommends updating hormone therapy guidelines due to significant adverse events. Exercise and vitamin D supplementation are effective at reducing falls, but multifactorial risk assessment is not recommended for all elderly patients.

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.

Working with solvents tied to cognitive problems for less-educated people

A study published in Neurology found that exposure to solvents can lead to cognitive impairment in less-educated individuals, while those with higher education levels remain unaffected. The study, which analyzed data from 4,134 workers, suggests that improving early education may protect against future cognitive decline.

PCB can increase risk of abdominal fat

A new study published in Obesity found a correlation between PCB exposure and increased distribution of body fat to the abdomen. Researchers analyzed data from over 1,000 70-year-olds and found that high levels of PCB189 were related to a high proportion of visceral fat.

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.

VTT researcher finds explanation for friction

A VTT researcher has provided an explanation for sliding friction between solid objects, attributing it to surface energy of materials. The discovery enables quantitative calculation of the friction coefficient and potential manipulation of friction by selecting specific surface materials.

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.

U of M study finds titan cells protect Cryptococcus

Researchers discovered that giant cells called titan cells protect the fungus Cryptococcus neoformans during infection, shielding it from the immune system. This finding could lead to the development of new treatments for infections caused by Cryptococcus, a deadly concern for immunocompromised individuals.

Family values

A new study demonstrates that female choice and faithfulness played a crucial role in human evolution, leading to the emergence of the modern family. The transition from promiscuity to pair-bonding was characterized by a reduction in male-to-male competition in favor of providing for females and close parental involvement.

Study provides new insights into structure of heart muscle fibers

Researchers at McGill University discovered that heart muscle fibers are arranged in a special 'minimal surface' called the generalized helicoid. This finding offers significant new understanding of heart-wall muscle fiber geometry and could be used to guide tissue repair after heart attacks.

Celestron NexStar 8SE Computerized Telescope

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

Inequality dates back to the Stone Age

A new study by archaeologists from the Universities of Bristol, Cardiff and Oxford found that Neolithic farmers buried with distinctive stone adzes had access to better land than those without. The analysis revealed sex-biased mobility patterns and status differences among early European populations.

Marine reserves provide baby bonus to fisheries

A groundbreaking study found that marine reserves can restock fish populations in areas open to fishing. The research tracked the dispersal of baby coral trout and stripey snappers from reserve sites, finding that up to 30km away, a significant proportion settled on reefs open to fishing.

NYU physicists devise method for building artificial tissue

Researchers at NYU developed a method to replicate the mechanical properties of tissues using an oil-in-water solution, mimicking cell-to-cell adhesion. This breakthrough has potential industrial applications in biocompatible products and pharmaceuticals.

Climate change led to collapse of ancient Indus civilization, study finds

A new study combines archaeology and geoscience to reveal that climate change was a key factor in the collapse of the ancient Indus civilization around 4000 years ago. The research suggests that weakened monsoon rains led to reduced river dynamics, contributing to the decline of cities and the shift towards small farming communities.

Meta Quest 3 512GB

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

Less couch time equals fewer cookies

A Northwestern University study found that simply changing one bad habit, such as spending less time on the couch, can have a domino effect on other unhealthy behaviors. The most effective way to rehab a delinquent lifestyle requires two key behavior changes: cutting time spent in front of screens and eating more fruits and vegetables.

New stem cell technique promises abundance of key heart cells

A new stem cell technique allows for efficient generation of abundant cardiomyocytes, critical heart muscle cells. This method is more efficient and robust than existing methods, promising a uniform alternative for research and pharmaceutical applications.

Engineered microvessels provide a 3-D test bed for human diseases

Researchers have developed engineered microvessels that can grow small human blood vessels in a 3-D structure, allowing for the study of disease progression and development of efficient therapies. The system shows promise in studying various diseases, including cancer, malaria, and clotting disorders.

Earlier detection of bone loss may be in future

Researchers at Arizona State University and NASA have developed a new technique for detecting bone loss using isotope analysis. This method is more sensitive than current X-ray methods and poses less risk to patients, making it a promising tool for early detection of diseases such as osteoporosis.

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.

Targeting tuberculosis 'hotspots' could have widespread benefit

Researchers found that reducing TB infections in geographic hotspots can significantly reduce citywide transmission rates by up to 29% over 50 years. Controlling these hotspots may have a similar impact on long-term, community-wide TB incidence as achieving the same targets in the remaining population.

Analyzing disease transmission at the community level

The study found that local variation in neighborhood immunity significantly alters the risk of dengue infection, even in highly mobile and dense urban populations. Infection with dengue provides lifelong immunity to the infecting serotype, but susceptibility returns, increasing the risk for severe disease.

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.

10 million years to recover from mass extinction

The end-Permian crisis, the most dramatic biological crisis in Earth's history, lasted for around 10 million years to fully recover. Life recovered slowly due to intense environmental shocks and grim conditions on Earth.

Land and sea species differ in climate change response

Researchers found that terrestrial species are less responsive to warm temperatures than marine species, which allows them to expand their ranges towards the poles. Climate change is also causing rare heat waves to set boundaries on where species can live.

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.

Powerful new approach to attack flu virus

A new protein-based antiviral approach has been developed to combat deadly flu epidemics, neutralizing vulnerable sites on H1N1 and H5N1 viruses. This innovative method uses manufactured genes as therapeutics, designed using computer-aided design and optimized through DNA deep sequencing.

Super-sensitive tests could detect diseases earlier

Researchers have developed a super-sensitive test that can detect signs of a disease in its earliest stages, enabling more reliable diagnosis. The new biosensor test uses nanoscopic-sized gold stars to detect specific molecules associated with diseases like prostate cancer.

Timing is everything

Researchers found that modern birds are living dinosaurs with skulls similar to those of their juvenile ancestors. By analyzing fossil evidence and CT scans, they discovered that a change in developmental timing led to the evolution of birds, enabling them to retain physical characteristics of baby dinosaurs into adulthood.

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.