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Science News Archive July 2007


Page 13 of 16

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.

Double identities lie behind chromosome disorders

A new study reveals an alternative distribution mechanism in female sex cells that cause chromosome disorders, leading to infertility and irregular numbers of chromosomes. This fundamental mechanism may help explain the common occurrence of such disorders in females.

A gene that protects from kidney disease

Researchers have identified a gene, GLIS2, that protects against a serious kidney disease called nephronopthisis. Mutations in this gene cause the disease, which leads to kidney degeneration and failure.

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.

Analysis confirms benefits of combining trastuzumab and chemotherapy

A recent meta-analysis confirms that combining trastuzumab with chemotherapy reduces mortality by -34% and increases disease-free survival by 38% in women with operable HER-2 positive breast cancer. This treatment strategy also decreases the risk of locoregional and distant recurrences.

Highlights from the July 2007 Journal of the American Dietetic Association

A study found that Canadian fifth-graders prefer larger portions of snacks and fast food but smaller portions of vegetables, with a significant gender gap in portion sizes. The researchers also discovered that children who frequently eat at fast-food restaurants or watch TV while eating are more likely to consider large portions as 'us...

Electronic 'crowd behavior' revealed in semiconductors

Researchers at JILA discovered a previously unseen type of collective electronic behavior in semiconductors, shedding light on interactions between microscopic particles. The study used ultrafast lasers to analyze the phase shift of light, confirming the importance of collective exciton behavior and its superiority over simpler models.

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.

Too many UK companies fail to see the point of history

A new study by Professor Michael Rowlinson reveals that nearly all UK and US companies produce historical accounts of themselves, but the quality is extremely variable. Many UK companies could improve the way they present their history to the public, which can impact consumers' views of their longevity and trustworthiness.

New Rhode Island Hospital study shows higher rates of trampoline injuries

A new Rhode Island Hospital study shows a significant increase in trampoline-related injuries, with 531,378 reported cases over the decade. The majority of injuries (71%) were to extremities and occurred on home trampolines, prompting researchers to urge parents not to purchase these equipment for their children.

Murat Arcak receives 2007 SIAG/CST Prize

Murat Arcak, a researcher at Rensselaer Polytechnic Institute, received the 2007 SIAG/CST Prize for his work on passivity approach and robustness in largescale networks. His research has enhanced performance and robustness for wireless and biological networks.

Research suggests fitness reduces inflammation

A recent study by University of Illinois researchers found that individuals with better parasympathetic tone had lower levels of inflammation, as measured by C-reactive protein (CRP). Exercise has been shown to improve parasympathetic tone, leading to a quicker heart-rate recovery after physical activity.

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.

Cancer risk in HIV, transplant patients

A landmark study finds that HIV/AIDS patients are 11 times more likely to develop Hodgkin's lymphoma, while transplant recipients face a similar increased risk for several types of cancer. Immune deficiency is the common factor driving these higher cancer rates in both groups.

Elevated CO2 in atmosphere weakens defenses of soybeans to herbivores

Research by the University of Illinois found that elevated CO2 levels increase the susceptibility of soybeans to Japanese beetles and enhance their invasive abilities. This study highlights the potential risks of climate change on crop defenses, particularly for highly usable crops like soybeans.

Chronic fatigue -- clues in the blood

A study published in the Journal of Infectious Diseases reveals 35 genes whose expression patterns correlate with chronic fatigue syndrome symptoms. These findings may provide clues about the disease's underlying nature and potential mechanisms.

Search engine mashup

A new search engine mashup uses intelligent virtual robots to scan data quickly, assessing keywords and context, and combining it with meta search tools to retrieve relevant results. This approach improves the precision rate and recall rate of traditional search engines.

Paracetamol overdoses drop without package size legislation

A Canadian study found that paracetamol overdose rates decreased significantly between 1995 and 2004, with a notable drop in hospitalizations among young women and Aboriginal populations. The lack of package size restrictions in Canada contributed to this decline, contrasting with the UK's successful implementation of smaller pack sizes.

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.

New imaging method clarifies nutrient cycle

USC researchers applied nanoscale imaging to study Anabaena oscillarioides, clarifying the mechanism of nitrogen fixation. The study revealed a key step in the nutrient cycle, allowing for better understanding of global carbon and nitrogen dynamics.

Amoebae control cheating by keeping it in the family

A study from Rice University reveals that cooperative single-celled amoebae use family ties to prevent cheaters from undermining their colonies' health. By associating with kin, the amoebae's social system prevents the spread of selfish mutants.

Apple iPhone 17 Pro

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

Engineered blood vessels function like native tissue

Researchers at University at Buffalo developed a method to isolate functional smooth muscle cells from bone marrow, which can be used in regenerative medicine for cardiovascular applications. The engineered blood vessels function similarly to native tissue, demonstrating potential as an alternative to venous grafts.

Tracing Parkinson's lethal mechanism

In mice and human patients, researchers found that crippling of protective enzyme Prx2 leads to death of dopamine-producing neurons in Parkinson's disease. Activating Prx2 prevents neuronal loss, suggesting it as a beneficial target for PD treatment.

Pre-exposure prophylaxis for HIV infection

Several phase II and III trials investigate anti-retroviral drug combinations for pre-exposure prophylaxis among at-risk populations. The implementation of such a program requires careful planning and substantial resources to ensure access, minimize risk behavior, and prevent drug-resistant strains.

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.

Stopping the HIV pandemic in children

Early HIV testing for exposed infants can prevent infection before AIDS or death, allowing for prophylaxis or treatment implementation. Universal availability of prophylaxis or treatment is crucial, but poses challenges such as long-term toxic effects of anti-retroviral treatment.

K-State researcher working on a way to make snack foods with extra fiber

A Kansas State University researcher has created a way to make fiber-enriched flour that tastes like regular flour, enabling the production of healthier snacking alternatives. The process uses extrusion processing to add varying levels of bran, resulting in improved dough quality and increased soluble dietary fiber.

From the corner of the eye: Paying attention to attention

Researchers distinguish between two classes of brain cells with distinct roles in visual attention and highlight mechanisms by which they mediate attention. They found that neurons respond more strongly when attention is directed to the stimulus in their receptive fields, with narrow-spiking cells firing more frequently under attention.

The new 'look' of superconductivity

Researchers at Ames Laboratory have observed two-dimensional equilibrium patterns in lead samples when in its superconducting state, below 7.2 Kelvin. These complex patterns differ from the long-held textbook model proposed by Lev Landau and represent a significant contribution to the field of superconductivity.

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.

Which is the chattier gender?

A study of nearly 400 university students found women spoke an average of 16,215 words per day, while men averaged 15,669. The difference was not statistically significant, and individual variations were large.

Research ends debate over benefits of butterfly defenses

Research reveals that butterfly mimicry benefits both species involved, as predators avoid eating the most unpalatable species but still learn to distinguish between them. The study provides insight into how insects evolve to resemble one another and change their behavior.

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.

NIEHS researchers identify enzyme critical in DNA replication

DNA polymerase epsilon plays a primary role in replicating leading strand of DNA in bakers yeast, influencing genome stability and responses to environmental stress. The discovery advances understanding of DNA replication in higher organisms like humans.

Do women really talk more than men?

A study published in Science debunks the popular stereotype that females use more words than men, revealing both sexes use an average of 16,000 words per day. The research used a digital voice recorder to track daily interactions over eight years and analyzed transcripts from nearly 400 university students.

International AIDS society conference, Sydney

The International AIDS Society conference in Sydney drew a record number of 5,000 delegates and featured a new biomedical prevention track, reflecting increasing interest in microbicides and other innovative approaches.

Holograms make for better vision tests

Researchers developed a one-step test using holograms to diagnose astigmatic error, a key factor in prescribing glasses. The new technique is simpler and faster than traditional methods, which involve multiple lenses and complex processes.

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.

How pain distracts the brain

Researchers identified the lateral occipital complex as a region affected by both working memory load and pain, but found that pain influences visual processing through the rostral anterior cingulate cortex. This modulation affects accuracy in recognizing images.

Chemical in brain acts like a fuel gauge

Researchers at USC have found that norepinephrine transmits a 'low blood sugar' message from the hindbrain to the paraventricular hypothalamus, triggering the release of energy stores to replace missing sugars. This discovery provides new insights into glucose sensing mechanisms in the brain and may hold potential for treating diabetic...

Challenges to development of an AIDS vaccine

HIV's uniformly fatal outcome and absence of natural immunity pose significant hurdles for vaccine design. The authors call for increased funding for research and clinical trials to address these challenges and accelerate progress in finding an effective AIDS vaccine.

Fluke 87V Industrial Digital Multimeter

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

Why liver cancer is more prevalent in males than in females

Research at University of California, San Diego reveals that male mice produce more IL-6 in response to liver injury, leading to a higher incidence of liver cancer. The study suggests therapies targeting IL-6 production or estrogen-like compounds may reduce liver cancer risk in males.

Cancer on the agenda of the Portuguese EU Council Presidency

Cancer is a major cause of disease and mortality worldwide, requiring a strong political signal for alliance and concerted actions. The Round Table on Health Strategies in the European Union will focus on creating capacity building for effective policies and programs to address cancer.

South Asian Scots have increased risk of heart attacks

A recent study by the University of Edinburgh found that South Asian Scots are more likely to suffer a heart attack than the rest of the Scottish population. The research, which linked census data to hospital discharge records, revealed an 80% higher incidence of heart attacks among South Asian women and a 45% higher incidence among men.

Soil particles found to boost prion's capacity to infect

A study by University of Wisconsin-Madison researchers found that soil particles can increase the infectious nature of rogue proteins causing CWD. Binding to common soil minerals like montmorillonite significantly increases oral transmissibility, with a nearly 700-fold difference observed.

Meta Quest 3 512GB

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

Etravirine effective at HIV supression: DUET trials 1 and 2

A new NNRTI etravirine has been shown to be effective in suppressing HIV viral load in treatment-experienced patients with documented resistance to non-nucleoside reverse transcriptase inhibitors. The DUET trials 1 and 2 found that 56% and 62% of patients achieved viral loads below 50 copies/mL, respectively.

Coaching computer canines in clambering

Researchers at USC are training a new breed of robotic dog, called LittleDog, to navigate challenging terrain. After 15 months of experimentation, the dogs can now move, albeit slowly, and will be trained to run faster in the next phase of the study.

UF scientists work to develop simple bladder cancer test

Researchers identified promising biomarkers in urine samples, including one linked to liver and ovarian cancer. The goal is to create a simple, fast, and noninvasive test for early detection, potentially avoiding painful procedures.

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.

Stanford researchers find brain pathway of depression in rats

Researchers at Stanford University School of Medicine have identified a unifying principle explaining how different causes and treatments for depression converge. Changes in electrical signal flow through the brain circuit appear to be the cause of depression-related behavior.

Wesley Research Institute study targets pharmacists to help diabetes sufferers

A new study is providing community pharmacists with education and advice on controlling blood glucose levels through individual glucose meter uploads. The project aims to determine whether lifestyle advice from pharmacists improves glycaemic control and potentially reduces the burden of Type 2 Diabetes on healthcare systems.

Stevens joins IDS Scheer's Innovation and Education Network

Stevens Institute of Technology has joined the IDS Scheer Innovation and Education Network, allowing for the application of its academic research to industry. The network aims to generate a constant stream of ideas for innovations and support education initiatives in Business Process Management (BPM).

Study finds wives have greater power in marriage problem-solving behavior

A new study by Iowa State University researchers found that wives exhibit greater situational power and domineering behaviors during problem-solving discussions in marriage. The study of 72 married couples revealed that wives were more likely to draw favorable responses from their husbands, indicating a healthy marriage dynamic.

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.