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Science News Archive August 2009


Page 6 of 22

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.

A potential therapeutic agent for hepatic fibrosis

Researchers have discovered a potential therapeutic agent for treating hepatic fibrosis, a scarring condition that impairs liver function and can lead to organ failure. The CCN2 hammerhead ribozyme shows promise in reducing collagen production and cell proliferation, offering new hope for millions affected by liver fibrosis.

Unlocking the body's defenses against cancer

Researchers found a way for healthy cells to take charge of cancerous cells by opening up communication channels, stopping them from developing into tumors. The chemicals, known as kinase inhibitors, appear to be relatively non-toxic and can persist even when withdrawn.

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.

New treatment option for ruptured brain aneurysms

Researchers have identified a new treatment option for patients with ruptured brain aneurysms using stent-assisted coil embolization, which was successful in 72% of cases. The procedure offers an alternative to surgical repair or balloon-assisted embolization, particularly for wide-necked aneurysms.

Hepatic injury in cholelithiasis and cholecystitis

Researchers found that acute transient hepatocellular injury occurs in patients with cholelithiasis and cholecystitis without evidence of CBD stones, resolving within weeks after surgery. Markers of liver damage are more severe in those with CBD stones or histologically less severe inflammation.

Apple iPhone 17 Pro

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

Placing ads: Location, location, location

Researchers found that ad placement affects consumer perception, with easier-to-read articles leading to more favorable evaluations of ads and products. Placing ads after difficult articles can have negative effects, while ads unrelated to the article may be more positively received.

Celestron NexStar 8SE Computerized Telescope

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

Rewriting general relativity?

Scientists investigate Hořava's quantum gravity model, which modifies Lorentz symmetry. The team finds that the modifications only reproduce general relativity on unobservable scales.

JCI table of contents: Aug. 24, 2009

Researchers found that Six1 protein is central to tumor development in breast cancer, linked to EMT, stem/progenitor cells, and poor prognosis. Overexpression of Six1 also enhanced ability to metastasize, indicating its role as a key player in aggressive breast cancer.

Cancer patients who are separated when diagnosed have worse survival rates

A new study found that unmarried cancer patients who are separated at diagnosis have poorer survival rates compared to widowed, divorced, and never married patients. The researchers suggest that the stress of separation may compromise an individual's immune system and lead to a greater susceptibility to cancer.

NIAID to fund new human immune profiling research centers

The new initiative will characterize the human immune system under normal conditions and following infection or vaccination, using systems biology approaches. Researchers will analyze human samples from well-characterized cohorts to identify specific patterns of immune molecules that reflect immune system function.

High blood pressure linked to memory problems in middle age

Research published by the American Academy of Neurology links high blood pressure to cognitive impairment in people over 45. The study found that those with high diastolic blood pressure were more likely to experience memory and thinking problems.

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.

Comments with the Lancet South Africa series

The Lancet South Africa series proposes three strategies to address public sector workforce needs, affordable national health insurance, and competent leadership. The authors also discuss the decline in clinical research activity and capacity, as well as health inequities in South Africa, highlighting the need for jobs and cooperation ...

Improvement of liver stem cell engraftment by protein delivery

Researchers engineered a chimeric protein that increases cell survival, migration and proliferation to improve liver stem cell engraftment. The protein, TAT-Tpr-Met, was shown to increase the number of hepatic stem cells integrated into the liver of mice.

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.

USC study finds changes in DNA patterns are linked to prenatal smoke exposure

A new USC study reveals that prenatal tobacco smoke exposure is associated with detectable changes in DNA methylation patterns, which may impact childhood asthma and cardiovascular disease. Researchers found that children exposed to maternal smoke had lower global methylation levels and higher methylation in certain genes.

Satellite imagery shows Typhoon Vamco has a huge 45-mile wide eye

Typhoon Vamco boasts an enormous 45-mile-wide eye with cold high thunderstorm cloud temperatures below minus 63 Fahrenheit. The storm is currently in the Northern West Pacific Ocean and will begin changing to an extra-tropical storm, moving into the North Central Pacific Ocean.

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.

NISS to work on syndomic surveillance project for NSF and DTRA

The National Institute of Statistical Sciences (NISS) has received funding to develop Bayesian methods for syndromic surveillance using conditionally auto regressive models. The research aims to provide quantified estimates of disease presence, characterize uncertainties, and implement computational methods at a nationwide scale.

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.

American Political Science Association announces 2009 awards

The American Political Science Association has awarded several notable individuals with prestigious recognition for their contributions to the study and practice of politics. Lawrence O'Toole received the John Gaus Award for a lifetime of scholarship, while Catherine McArdle Kelleher won the Hubert H. Humphrey Award for public service.

Aurora B answers an XIST-ential question

Researchers found that Aurora B kinase helps regulate XIST's chromatin binding by phosphorylating chromatin proteins during mitosis. This study provides insight into X chromosome silencing and may lead to a better understanding of noncoding RNAs and their role in regulating heterochromatin.

Heat stress in older people and people with chronic diseases

Heat waves pose a significant threat to older adults and individuals with chronic diseases, who are more susceptible to heat-related illnesses due to impaired thermoregulation. Air conditioning and working fans can reduce the risk of mortality by up to 80% and 30%, respectively.

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.

Women are sort of more tentative than men, aren't they?

Researchers found that women and men use hesitant language when discussing topics that don't align with their gender, but also exhibit similar patterns of tentativeness in neutral topics. This challenges the notion of innate gender differences in communication style.

How can clinicians help patients make decisions consistent with their values?

Researchers found that presenting risk as natural frequencies and using bar charts helped participants make decisions consistent with their values. The studies also showed that different data presentations can be more persuasive, regardless of the participant's values. Healthcare providers should strive to maintain objectivity while re...

Trust in a teardrop

A Tel Aviv University researcher suggests that tears signal vulnerability and attachment, making interpersonal relationships stronger. Crying is not just a symptom of pain or stress, but an evolution-based mechanism to bring people closer together.

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.

Wisconsin team grows retina cells from skin-derived stem cells

A University of Wisconsin-Madison team successfully grew multiple types of retina cells from two types of stem cells, suggesting a potential future in repairing damaged retinas. The discovery will also lead to laboratory models for studying genetically linked eye conditions and screening new drugs.

New prognostic marker for human breast cancer

A new prognostic marker for human breast cancer has been identified, with elevated GLI1 protein levels associated with poor overall survival. The study found a positive correlation between GLI1 expression and tumor stage, lymph node status, and unfavorable prognosis.

Scientists announce unique acacia tree's promise to revive African soils

The Faidherbia acacia tree has the potential to revolutionize African farming by providing a free source of organic nitrogen, increasing crop yields, and improving soil health. Its unique growth habit and adaptability to various climates make it an ideal solution for reversing soil degradation and supporting farmers' livelihoods.

Idaho researchers win grant to explore DNA frontier

Idaho researchers have been awarded a three-year grant to explore novel approaches to gene therapies by targeting specific sections of chromosomes with locked nucleic acids. The team aims to improve targeting and show its impact on genes, potentially leading to new treatments for genetic diseases.

Why 'thick' blood protects from a heart attack

Researchers at Heidelberg University Hospital discovered that mice with thick blood formed larger but more stable plaques, reducing the risk of vascular obstruction. However, long-term use of anticoagulants reversed these advantages, highlighting the need for caution when prescribing these medications.

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.

The Eli and Edythe Broad Foundation recommit to gastroenterology's future

The Eli and Edythe Broad Foundation has renewed its three-year grant to support high school students in gastroenterology research careers through the AGA Foundation's Student Research Fellowship Awards program. The program provides funding for students to conduct research under the supervision of an approved preceptor.

USDA grant to educate AIDS patients about food safety

Researchers at the University of Illinois Chicago are developing an educational comic book to teach AIDS patients about food safety, highlighting risks such as listeria and toxoplasmosis. The study aims to improve awareness and reduce life-threatening infections among AIDS patients.

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.

To each his own: Consumers and self-designed products

A study found that amateur designers have lower self-evaluations of their products when compared to professionals. However, consumers enjoy intentionally competing against professionals, leading to more favorable self-evaluations when informed of contests beforehand.

Genomic study yields plausible cause of colony collapse disorder

A genomic study has identified a plausible cause of colony collapse disorder in honey bees. The research found that the loss of ribosomal function, caused by viral infections and other stressors, contributes to the mysterious disappearance of American honey bees.

Bats use love songs during mating, researchers say

Researchers at Texas A&M University discovered that male bats use distinguishable syllables and phrases as love songs to attract females. The study found that the sounds are made in a specific pattern to form a song, with organized sequences within each phrase, and are used by males during mating.

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.