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Science News Archive February 2008


Page 11 of 19

Protein's strength lies in h-bond cooperation

The strength of spider silk lies in the specific geometric configuration of structural proteins, which have small clusters of weak hydrogen bonds that work cooperatively to resist force and dissipate energy. This structure makes spider silk as strong as steel, despite weaker hydrogen bonds.

Heavy rainfall on the increase

Scientists at UEA found intense rainfall events increasing in UK's winter and spring seasons, reversing summer trend. Heavy summer rainfall returns after 1990s decrease, impacting flood risk and extreme weather events.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Is hybridoma production about to take a quantum leap forward?

Research has established Neowater's ability to refine the standard hybridoma production process, leading to enhanced yields of human monoclonal antibodies. The novel nanoparticle-doped water also stimulates new membrane formation, improving cell growth and proliferation rates.

Higher body mass index means higher risk of several cancers

A meta-analysis of 221 datasets found that a 5kg/m2 increase in BMI raises the risk of oesophageal adenocarcinoma, thyroid cancer, colon and kidney cancers in men, and endometrial, gallbladder, and oesophageal adenocarcinoma in women. The study also found stronger associations between increased BMI and colon cancer in men.

Genome of marine organism tells of humans' unicellular ancestors

A newly sequenced genome reveals insights into the evolution from single-celled life forms to multicellular animals. Choanoflagellates, tiny planktonic organisms, are the closest living relatives of animals and hold key information about human history and the origins of life.

Metabolic syndrome linked to cold tolerance

Researchers found a strong correlation between climate and genetic variations influencing metabolic syndrome risk, with some genes associated with cold tolerance having protective effects while others increase disease risk. Climate adaptations may have played a role in the emergence of metabolic disorders.

New approach may render disease-causing staph harmless

Researchers developed a new treatment strategy for serious Staph infections by blocking the production of a golden pigment that allows Staph to evade immune cells. The compound, BPH-652, is a cholesterol-lowering agent that targets a similar enzyme in humans.

Apple iPhone 17 Pro

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

Immune system protein starves 'staph' bacteria

A Vanderbilt University team has discovered a protein that blocks the growth of 'staph' bacteria by sopping up manganese and zinc, offering a new way to treat infections. The protein, calprotectin, is naturally produced by immune cells in response to bacterial infections, making it a potential target for therapeutic interventions.

A new control mechanism for genetic code translation discovered in bacteria

Researchers at IRB Barcelona have discovered a new control mechanism for genetic code translation in bacteria, which differs from humans. This discovery strengthens the theory that the initial genetic code evolved separately in distinct branches of life, highlighting the plasticity and complexity of the genetic code.

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.

Use of activated charcoal does not affect mortality in self-poisoned patients

A randomized controlled trial found that multiple-dose activated charcoal has no effect on mortality in patients who have poisoned themselves with toxic pesticides or plants. The study involved over 4600 patients and showed no differences in mortality rates between those who received activated charcoal and those who did not.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Map is first to track global human influences on ocean ecosystems

A new global map tracks human influences on marine ecosystems, revealing that coral reefs are in trouble and few blue spots on the planet are pristine. The study suggests that about 41% of oceans bear a serious human footprint, with areas like the North Sea and Caribbean Sea showing deepest impacts.

Yale study offers insight into possible cause of lymphoma

A Yale University study suggests that compromised DNA repair processes may lead to widespread mutations and an increased risk of cancer. The research found that the immune system's somatic hypermutation process, which introduces random mutations in B cells' antibody genes, is a key factor in the development of lymphoma.

Meta Quest 3 512GB

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

Procedure developed at Yale creates new bone

A new technique developed at Yale School of Medicine promotes rapid bone formation by removing bone marrow and injecting a hormone, offering a promising alternative to current treatments for weakened or fractured bones. The study, conducted in mice, shows that this procedure creates new bone tissue with improved biomechanical properties.

PSA testing can predict advanced prostate cancer

Researchers found that a single PSA test before age 50 can predict advanced prostate cancer up to 25 years later, helping identify high-risk men for targeted screenings. The study analyzed blood samples from over 160 men with advanced prostate cancer and a similar cohort without cancer.

A genetic variant increases the risk of developing schizophrenia in women

A genetic variant in the Reelin gene significantly increases the risk of developing schizophrenia in women, according to a recent genome-wide association study. The study analyzed DNA from patients with schizophrenia and healthy controls across multiple populations, identifying a common variant that affects women only.

Celestron NexStar 8SE Computerized Telescope

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

New model helps scientists understand aspects of parasite biology

A new model system has enabled scientists to conduct powerful genetic studies directly in the parasite Toxoplasma gondii, leading to a better understanding of its biological processes. This discovery could provide valuable leads on how to stop parasite growth and prevent diseases affecting millions of people.

Sheep in human clothing -- scientists reveal our flock mentality

Research at the University of Leeds shows that humans follow crowds without realizing it, with just 5% of individuals influencing the group's direction. This study has major implications for directing large crowds in disaster scenarios and organizing pedestrian flow in busy areas.

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.

Early warning: PSA testing can predict advanced prostate cancer

Researchers found a single PSA test can predict advanced prostate cancer with high accuracy, allowing for targeted screening and potentially reducing overdiagnosis. The study revealed that men with higher PSA levels are at increased risk of developing advanced cancer, highlighting the potential for early detection to improve outcomes.

Giant planets do not come as lonely hearts

A new system of planets has been discovered with striking similarities to our Solar System, revealing giant planets that favour family groups over lone objects. The discovery uses a world-wide net of telescopes and challenges the single-life theory of gas-giant planets.

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.

JCI online early table of contents: Feb. 14, 2008

Scientists discovered that HOXA11, a homeobox gene, is essential for the development of uterosacral ligaments, which are weakened in women with pelvic organ prolapse. In another study, researchers found that increased expression of the WNT antagonist sFRP-1 contributes to elevated intraocular pressure in glaucoma patients.

Protein maintains cross talk between cells that control hair growth

Researchers at Rockefeller University have identified a crucial signaling molecule, BMP6, that maintains cross-talk between skin cells controlling hair growth. This finding suggests that dermal papilla cells receive signals from their microenvironment to regulate key genes and features.

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.

Smokers might benefit from earlier colon cancer screening

A new study suggests that smokers may benefit from earlier colon cancer screening due to their increased risk of developing the disease. The research found that current smokers were diagnosed with colon cancer approximately seven years earlier than people who never smoked.

Patient with rare disorder responds to cancer drug

Researchers at NIH have successfully treated a patient with a rare disorder using cancer drug imatinib, which is also effective against systemic mastocytosis and chronic basophilic leukemia. The study's findings offer new treatment options for patients with these complex conditions.

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.

Experimental MS drug shows promise, offers new window on disease

A small clinical trial found that rituximab dramatically reduced inflammatory lesions and clinical symptoms in patients with relapsing-remitting MS. The study suggests that therapies targeting B-cells may provide an important treatment strategy for multiple sclerosis.

2007 AAAS International Scientific Cooperation Award

Robert Watson, a renowned climate scientist, has been recognized for his outstanding contributions to promoting international scientific cooperation. He is being awarded the AAAS International Scientific Cooperation Award for his work on environmental and sustainable development.

AGU journal highlights -- Feb. 13, 2008

Researchers investigate anorthosites as a forgotten source of planetary magnetic anomalies, finding strong signatures of the Earth's magnetic field direction in ancient rocks. Another study proposes that gas hydrates in shallow marine sediments are the dominant source of methane in ice core records. A third study explores the feasibili...

Smoking marijuana impairs cognitive function in MS patients

Research published by the American Academy of Neurology found that smoking marijuana can have a harmful effect on cognitive skills in people with multiple sclerosis. The study also showed a significant association between marijuana use and emotional problems such as depression and anxiety.

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.

Possible progenitor of special supernova type detected

Researchers using Chandra X-ray Observatory data have reported a possible detection of a binary star system that was later destroyed in a supernova explosion. The new method provides great promise for finding the detailed origin of these cosmic events.

Brandeis researcher awarded grant to investigate memory and aging

A new five-year study aims to identify modifiable beliefs and behaviors that boost memory performance in middle-aged and older adults. By assessing psychological and physiological pathways, researchers hope to develop effective interventions to reduce distress, impairment, and dependence.

Web will work wonders for the faint hearted

Engineers at the University of Leeds have developed a new device that uses a specially-woven web to assist weak hearts, increasing internal pressure to improve blood flow. The web-based device eliminates the need for life-long drug therapy and reduces the risk of blood clots.

Rethinking what men and women want in a partner

Researchers at Northwestern University found that physical attractiveness is equally important for both men and women, while earning power also plays a significant role. The study suggests that people may not know what they initially value in a romantic partner, leading to discrepancies between stated preferences and actual choices.

Fluke 87V Industrial Digital Multimeter

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

Cheating is easy -- for the social amoeba

Researchers discovered over 100 mutant genes that allow the social amoeba Dictyostelium discoideum to cheat on spore production. This challenge evolutionary theory and suggests a constant battle between 'cheaters' and non-cheaters, with adaptations driving evolution.

U of I study: exercise to avoid gallstones!

A University of Illinois study found that exercise-trained mice had fewer gallstones than sedentary mice, with improved cholesterol levels and increased bile acid solubility. The researchers identified potential mechanisms to explain this link, providing new insights into the benefits of physical activity for reducing gallstone formation.

Routine screenings uncover hidden carbon monoxide poisoning

Researchers at Rhode Island Hospital found that routine screening for carbon monoxide poisoning can detect life-threatening cases in emergency room patients. The study screened over 14,000 patients and identified 11 unexpected cases, highlighting the importance of universal screening to prevent further exposure.

Microbial 'cheaters' help scientists ID 'social' genes

A genome-wide search for social genes has found that Dictyostelium discoideum have more than 100 genes regulating their cooperative behavior. Cheating mutations were identified in over 100 genes, highlighting the complex mechanisms behind social cooperation.

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.

When people feel powerful, they ignore new opinions, study finds

Research suggests that powerful individuals are less receptive to new ideas when they feel confident in their own opinions. Conversely, when made to feel powerless, they pay closer attention and weigh arguments more carefully. By temporarily reducing power, leaders can increase the likelihood of persuasion.