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Science News Archive September 2007


Page 3 of 18

Researchers discover forests of endangered tropical kelp

A research team has discovered forests of endangered tropical kelp in deep waters near the Galapagos Islands. The find suggests that marine ecosystems may be more resilient to climate change than initially thought, with kelp forests potentially harboring unique biodiversity.

Doctor-aided suicide: no slippery slope

A University of Utah-led study rebuts critics by showing that legalizing physician-assisted suicide did not result in disproportionate deaths among the elderly, poor, women, minorities, or chronically ill. In fact, patients with psychiatric illness were not more likely to die via assisted suicide.

Helping older people use technology can save lives

A Queensland University of Technology research team has received $280,000 in funding to investigate how to make technology easier for older people to use. The study aims to improve the design of complex interactive devices, such as healthcare products, to reduce errors and save lives.

Apple iPhone 17 Pro

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

Grub's passion for plastic causes water loss

Research by NSW DPI has identified the Whitefringed weevil larvae as the culprit behind small holes in leaky irrigation pipes. The larvae can chew through plastic piping using their dark brown pincers, leading to significant yield loss and water waste for lucerne growers.

Yale scientists make 2 giant steps in advancement of quantum computing

Researchers at Yale have made two major breakthroughs in advancing quantum computing, enabling the transfer of information between distant qubits and paving the way for more complex quantum computers. By developing a superconducting communication 'bus,' they can now store and transfer information efficiently between qubits on a chip.

Cave records provide clues to climate change

Researchers analyzed stalagmites from Borneo caves to reconstruct the tropical Pacific's climate history. Their findings suggest a more active role for the tropical Pacific in abrupt climate changes than previously thought, providing new insights into past climate trends.

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.

Studies suggest key correlation between lung cancer subtype and treatment outcomes

A study suggests that patients with non-squamous histology achieve statistically significant higher survival when treated with ALIMTA in the second-line setting compared to those with squamous histology. The analysis also identified other predictive factors for potential benefit from treatment, including adenocarcinoma histology and go...

Impact of Arctic heat wave stuns climate change researchers

A recent Arctic heat wave has led to a significant revision of climate change forecasts and research findings. The extreme temperatures on Melville Island have caused widespread erosion, changed sediment loads, and impacted water quality, highlighting the urgent need for improved models predicting future climate change in the High Arctic.

Doping technique brings nanomechanical devices into the semiconductor world

University of Wisconsin-Madison engineers successfully blended modern semiconductor tech and nanomachines, opening doors to new tiny mechanical devices. The new work enables sensors capable of measuring single biological molecules and has implications for solar energy cells, battery technology, and highly sensitive light-emitting diodes.

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.

Does the victim affect snake venom composition?

Research published in BMC Evolutionary Biology shows that a snake's intended prey affects the type and evolution of toxins in their venom. The study found that sea snakes have less diverse toxins due to their shared feeding behavior and diet.

Digital cable goes quantum

Scientists at NIST have developed a new component for potential ultra-powerful quantum computers using a microfabricated aluminum cable with superconducting circuits. This 'quantum bus' can transport data between two or more qubits, enabling faster calculations and potentially solving complex mathematical problems.

Team demos safety of RNA therapy

Researchers from MIT and Alnylam Pharmaceuticals have shown that siRNA does not interfere with the microRNA pathway, achieving 80% silencing of target genes in mice and hamster liver cells. This approach could lead to treatments for a wide range of diseases.

No evidence physician-assisted death leads to 'slippery slope'

Legalized physician-assisted dying in Oregon and the Netherlands shows only a few people choose this option, with most having cancer or severe illness. Vulnerable groups such as people with disabilities or mental illnesses are not overrepresented in deaths facilitated by doctors.

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.

Got stress? It could impact breast cancer recurrence

Women with metastatic breast cancer who have endured previous traumatic or stressful events see their cancer recur nearly twice as fast as others, according to a study. The median disease-free interval was 2.5 years for those with traumatic experiences, compared to 5 years for those without.

Emphasizing the 'precision' in precision agriculture

Researchers developed a simplified protocol to teach growers how to convert complex yield and soil data into pertinent information, enabling site-specific management decisions. By using this protocol, Australian growers improved their field management, including implementing site-specific nutrient and pest management treatments.

Study probes the legalities of cyber-bullying

A three-year QUT study will guide schools on policies and practices to protect victims, educate students and families, and prevent liability. The research team will work with focus groups of students, teachers, principals, and parents to explore the incidence and consequences of cyber bullying.

Celestron NexStar 8SE Computerized Telescope

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

Mice teeth explain the troubles with human wisdom teeth

Researchers at the University of Helsinki discovered that a weak inhibitory cascade in mouse molars may cause the last molar to develop in humans. They developed a mathematical model predicting tooth proportions and numbers across various species, including humans.

Study on joint attention has implications for understanding autism

A recent study on joint attention reveals its crucial role in understanding autism, suggesting impaired social skills and communication difficulties. The 'attention-systems model' proposes that joint attention is the result of two basic forms of attention interacting throughout development.

'Jumping genes' could make for safer gene delivery system

New nonviral gene delivery systems utilizing transposons provide a safer alternative to viruses, with potential benefits for treating fatal conditions such as cancer. The technology has shown promise in achieving stable expression of genes in animal cells and minimizing insertional mutagenesis risk.

Possible safer target for anti-clotting drugs found

Scientists at the University of Illinois Chicago have identified calpain-1 as a key enzyme in blood clot formation, which could lead to safer anti-clotting treatments. The study also found elevated protein tyrosine phosphatase-1B levels in mice lacking calpain-1, potentially providing insights into diabetes and obesity research.

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.

North America's northernmost lake affected by global warming

Researchers found that aquatic life in Ward Hunt Lake has undergone significant transformations over the last two centuries, with abrupt changes in algae population and diatom presence. The lake's conditions have become more favorable for algae growth, raising concerns about climate change's impact on Arctic ecosystems.

Enzyme's second messenger contributes to cell overgrowth

Researchers at UCSD School of Medicine discovered a novel PLC-epsilon enzyme subtype that activates a second signaling pathway for cell proliferation. This finding may enable targeting the enzyme's second function to prevent pathological responses while preserving its critical physiological roles.

Stevens wins Excellence in Technology Education Award

Stevens Institute of Technology has been recognized for its consistent success in technology education, with a focus on innovation and collaboration. The university's four schools are working together to address major thrust areas in the 21st century, including systems management, security, and multi-scale engineering.

Life-giving rocks from a depth of 250 km

Researchers at the University of Bonn found that majorite minerals act as oxygen reservoirs, releasing stored oxygen to form water and sustain life on Earth. This mechanism helps prevent the Earth from becoming as dry and inhospitable as Mars.

Thriving hybrid salamanders contradict common wisdom

Researchers found that hybrid young salamanders survived more in the wild than pure native or introduced species, challenging prevailing scientific thought. The study raises questions about managing endangered populations and considers hybrids as threats to native salamanders.

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.

Safety measures for Grand Prix racing drivers haven't worked

Researchers found that safety measures introduced over the past decade have failed to reduce death rates and speed in Grand Prix motor racing. Experts recommend strengthening barriers, protective clothing for drivers, and improving cornering speeds to prioritize driver safety.

New approach to improving diarrhea in infants with probiotics

Researchers found that combining Lactobacillus rhamnosus GG probiotic strain with lower doses of hyperimmune bovine colostrum (HBC) provides protection against rotavirus infection, effective as high-dose HBC alone. This combination therapy could help relieve the immense disease burden posed by rotavirus in developing countries.

Black Caribbeans do better in America than in England

A comparative study of Black Caribbeans living in America found better health, higher incomes, and less discrimination than both black Americans and English Caribbeans. The research attributed these differences to economic inequalities and migration patterns.

Discovery supports theory of Alzheimer's disease as form of diabetes

Scientists at Northwestern University have discovered that a toxic protein in the brains of individuals with Alzheimer's removes insulin receptors from nerve cells, rendering those neurons insulin resistant. This finding sheds light on the emerging idea of Alzheimer's being a type 3 diabetes.

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.

New type of drug shows promise in attacking melanoma in an innovative way

The experimental drug STA-4783 has been shown to delay cancer progression and prolong patient lives by inducing oxidative stress in cancer cells. In a randomized trial, patients treated with the combination of STA-4783 and chemotherapy lived up to 12 months after diagnosis, compared to 7.8 months for those receiving only chemotherapy.

MicroRNA convicted of triggering metastasis

A recent study shows that overabundance of a single microRNA, microRNA-10b, can cause tumors to spread to distant tissues in mice. Researchers found that this microRNA disrupts the normal migration process of cancer cells by targeting the HoxD10 gene.

Experimental drug shows promise in advanced kidney cancer

A study presented at the European Cancer Conference found that axitinib shrank tumours and delayed disease progression in patients with advanced kidney cancer. The drug, which is also being tested in other types of cancer, showed promising results in a group of heavily pre-treated patients.

Glycemic index values are variable, report researchers

Researchers at Tufts University found that glycemic index values can vary significantly among individuals and even within the same person, with individual values ranging from 44 to 132. The study's findings highlight the need for more precise understanding of how glycemic index relates to chronic disease risk in diverse populations.

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.

Chinese takeaway in the Wadden Sea

In the Wadden Sea, shore crabs use a takeaway meal strategy to avoid competition for food. They first attempt to catch prey at the richest food spot but then move it to a nearby poor spot with fewer competitors.

Immune system modulation can halt liver failure in animals

Massachusetts General Hospital researchers have developed a new method to treat liver failure by modulating the immune response. The approach uses mesenchymal stem cells to reduce inflammation and promote organ regeneration, showing promising results in animal studies.

Antwerp artist and brilliant market thinker

Dutch researcher Micha Leeflang studied 107 of Joos van Cleve's paintings using infrared reflectography and dendrochronology to analyze his painting techniques, marketing strategies, and artistic success. The study found that Van Cleve employed a permanent group of assistants to maintain high-quality paintings.

Fluke 87V Industrial Digital Multimeter

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

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.

Radiologists identify early brain marker of Alzheimer's disease

Researchers have identified a new brain marker that may help diagnose Alzheimer's disease earlier, using fMRI to monitor changes in brain activation and deactivation. The study found that impaired deactivation in the posteromedial cortices was closely related to memory impairment and neuropsychological testing scores.

Baby booms and birth control in space

Researchers found a strong correlation between black hole presence and reduced star formation in heavy galaxies. The energy generated by massive black holes may heat up gas, preventing new stars from forming.

Sense of taste different in women with anorexia nervosa

Women with anorexia nervosa exhibit distinct differences in brain activity related to taste recognition, suggesting a link between appetite regulation and self-awareness. This finding may shed light on the underlying causes of anorexia nervosa, including distorted body image and difficulty responding to hunger.

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.

Online game helps people recognize Internet scams

A new online game, Anti-Phishing Phil, has been developed by Carnegie Mellon University to educate people on how to identify fraudulent websites. The game improved players' accuracy from 69% to 87% in identifying legitimate and illegitimate web sites.

Simulation reveals how body repairs balance after damage

A computer simulation created by Georgia Tech and Emory researchers sheds light on how the nervous system adapts to sensory loss, enabling patients to regain balance despite impaired sensory information. The findings could lead to better diagnosis and rehabilitation for patients with balance problems.

Poll reveals public awareness of nanotech stuck at low level

A national survey found that only 6% of Americans have heard a lot about nanotechnology, with women and older Americans being the least aware. The public is seeking more information on health risks and benefits before purchasing nanotechnology-enhanced products.

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.

Weekend labor shortage

Two studies find a direct link between increased elective caesarean sections and decreased weekend births in Switzerland and Germany. The research suggests that hospitals schedule births during the week when they are fully resourced and staff is working 'normal' hours, leading to fewer births on weekends.