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Science News Archive April 2009


Page 16 of 24

Surgical gel used to stop bleeding could confuse mammograms

Researchers from Loyola University Health System warn that the surgical gel FloSeal may cause microcalcifications on mammograms after breast cancer surgery. The study highlights the need for caution when using FloSeal in lumpectomies to avoid misdiagnosis.

Farmers relying on roundup lose some of its benefit

A new study reveals that farmers' overreliance on Roundup Ready crops and glyphosate-based herbicides is leading to the development of resistant weeds. Rotating crops and using different herbicides can slow down this process, extending the life of the technology.

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.

Where you live may affect your state of mind

A new study found that Frequent Mental Distress (FMD) prevalence varies significantly across the US, with high rates in Appalachian and Mississippi Valley regions and low rates in the upper Midwest. FMD prevalence increased by at least 1 percentage point in 27 states over two periods.

Home tooth bleaching slightly reduces enamel strength

A new study from Ohio State University found that home tooth bleaching products reduce enamel hardness by 1.2-2 nanometers, affecting its ability to bounce back after force. Researchers suggest reformulating products to minimize side effects.

Climate change makes migrations longer for birds

A study published in the Journal of Biogeography found that climate change may lead to longer bird migrations, with some species facing journeys of up to 250 miles longer. This could have significant consequences for birds' survival and ability to adapt.

Discovery of variations in resistance to sulfadoxine across Africa

Researchers have discovered different resistance mutations in east and west Africa, suggesting varying effectiveness of sulfadoxine as an antimalarial drug. Coordinating malaria control efforts across socioeconomically linked areas may be more effective in reducing the malaria burden across the continent.

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.

Treating HIV earlier to decrease the risk of death

A new North American study shows that starting antiretroviral treatment earlier significantly decreases the risk of death, with a reduction of up to 94% in patients who begin treatment before their CD4+ cell count falls below 500. This finding challenges traditional guidelines and may lead to changes in medical practice.

University awarded £3.5 million ($5.2 million) to transfer research into industry

The University of Liverpool has secured funding to create a Knowledge Exploitation Laboratory, accelerating the transfer of research into industry. The lab will facilitate collaboration between academics and industrial partners, exploiting £43 million of EPSRC-funded research in molecular engineering, advanced manufacturing, and sensors.

Toward rational, transparent K-12 funding

A new tool has been developed to quickly assess how a particular school finance reform proposal might impact individual California school districts. The tool can be used to evaluate any formula that consolidates categorical funds and will be discussed at the American Educational Research Association meeting in San Diego.

I feel like a different person

Researchers found that feeling good encourages individuals to explore values inconsistent with their cultural norms, while feeling bad reinforces traditional stereotypes. This suggests that emotions play a significant role in shaping our cultural identities.

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.

Creating ideal neural cells for clinical use

Researchers at the Burnham Institute developed a protocol to differentiate human embryonic stem cells into committed neural precursor cells, which can be used for transplantation. The C-NPCs were transplanted into mice and became active neurons without generating tumor outgrowth.

High-tech speed bump detects damage to army vehicles

Researchers developed a technology that detects damage to critical suspension components in military vehicles by driving over a speed bump-like cleat containing sensors. The system uses signal processing software to interpret sensor data and identify damage, reducing downtime and maintenance costs.

Apple iPhone 17 Pro

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

Nobler instincts take time

A new study led by USC neuroscientists found that admiring others' virtues or feeling compassion for physical or social pain takes time to fully respond to, unlike faster reactions to fear and pain. The research suggests a need to allow for reflective moments in digital media culture.

UQ research reclaims the power of speech

Researchers at UQ have found a new treatment approach for dysarthria patients who have suffered a stroke or brain injury. The Lee Silverman Voice Treatment program has shown positive effects on voice clarity and communication confidence, improving quality of life for those affected by the disorder.

Marijuana smoking increases risk of COPD for tobacco smokers

Smoking both marijuana and tobacco significantly increases respiratory symptoms and chronic obstructive pulmonary disease (COPD) risk. A study of 878 adults aged 40 or older found that those who smoked both substances were 2.5 times more likely to have respiratory symptoms and almost 3 times more likely to have COPD.

Depression after heart disease ups risk of heart failure

Patients with heart disease who develop depression are at a greater risk for heart failure, with a two-fold increased incidence. Antidepressant therapy did not appear to lower this risk, suggesting that depression may be an emerging risk factor for cardiovascular outcomes.

Fluke 87V Industrial Digital Multimeter

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

Guam rhino beetles got rhythm

Researchers used acoustic equipment to analyze the spectral patterns of stridulations produced by Guam's coconut rhinoceros beetle, revealing distinct temporal patterns that aid in communication among beetles. The method allows for early detection of feeding grubs, saving money and lives of coconut trees.

JCI online early table of contents: April 13, 2009

A team of researchers has identified a class of drugs that may enhance the therapeutic effects of imatinib mesylate in treating chronic myeloid leukemia. They also developed a zebrafish model for screening potential therapies for Alzheimer's disease and identified a molecular mechanism underlying aggressive prostate cancer.

Meta Quest 3 512GB

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

Mathematics and climate change

Ken Golden's research on percolation-based models of sea ice has revealed key features that control polar climate dynamics, including the 'rule of fives'. His work has also led to the development of mathematical approaches to predict changes in sea ice permeability.

Tracing resistance to the antimalarial drug sulfadoxine across Africa

Resistance to the antimalarial drug sulfadoxine has emerged independently in multiple sites across Africa over the past decade. The study suggests that coordinated control campaigns may be more effective in reducing the African malaria burden by addressing regional differences in parasite strains and levels of resistance.

New 'near-field' radiation therapy promises relief for overheating laptops

Researchers at Lehigh University have developed a new cooling method for carbon nanotube electronics by utilizing nonconventional radiation in a near-field zone, dissipating heat into the substrate. The method increases effective thermal conductance over the interface between nanotubes and polar substrates.

Celestron NexStar 8SE Computerized Telescope

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

SIRT1 takes down tumors

Researchers found SIRT1 curbs cell division by speeding up the destruction of the tumor promoter c-Myc, a key finding that may aid cancer treatment. This study supports previous research suggesting SIRT1's anti-cancer effects while also identifying its role in regulating c-Myc levels.

Scientists demonstrate laser with controlled polarization

Researchers at Harvard University have developed a laser technology that allows control over the polarization direction of emitted radiation. This innovation has vast implications for various applications, including satellite communications, biomolecule detection, and quantum cryptography.

When cancer cells can't let go

FAK coordinates movement of migrating cancer cells by balancing the number of invadopodia that create a path for migration and the number of focal adhesions that hold the cell back. In its absence, breast cancer cells sprout extra invadopodia and form large, sticky focal adhesions.

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.

Colon cancer shuts down receptor that could shut it down

Researchers discovered a receptor in the colon that has cancer-killing potential and is silenced by cancer. Activating this receptor with butyrate or a related compound may provide a new treatment for colon cancer and inflammatory bowel disease.

Live demos of Methodspace planned at AERA

Methodspace, a Facebook-like social networking site, will offer live demos at the American Educational Research Association annual meeting. The platform supports researchers in methodology discussions and resource sharing.

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.

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.

Teaching teachers mindfulness to foster education, improve well-being

A new program, Cultivating Awareness and Resilience in Education (CARE), aims to reduce teacher stress and improve student behavior. By teaching mindfulness techniques, teachers can create a positive learning environment, increasing student engagement and reducing disruptive behavior.

University of Toronto chemists uncover green catalysts

Researchers at the University of Toronto have created a new green catalyst using iron that could replace expensive and toxic platinum metals in industrial chemical processes. This breakthrough has the potential to significantly reduce costs associated with drug production by avoiding costly purification techniques.

Review identifies dietary factors associated with heart disease risk

A review of 146 prospective cohort studies and 43 randomized controlled trials found strong evidence for a causal relationship between protective dietary factors such as vegetable, nut, and monounsaturated fatty acid intake and lower heart disease risk. The Mediterranean diet was significantly associated with coronary heart disease.

NASA experiment stirs up hope for forecasting deadliest cyclones

A NASA experiment has successfully 'hindcasted' the path of Cyclone Nargis, which killed over 135,000 people in 2008. The new data integration and mathematical modeling approach uses satellite imagery and atmospheric profiles to provide multi-day advance warnings for cyclones in the Indian Ocean.

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.

Reversing effects of altered enzyme may fight brain tumor growth

A team of scientists has discovered a compound that can block the growth of brain tumors by reversing the effects of an altered enzyme. The mutation in the IDH1 gene impairs the body's ability to control a protein that promotes tumor growth, but adding a modified form of alpha-KG can restore this balance.

Enhancing the effects of the drug used to treat chronic myeloid leukemia

A team of researchers has identified a class of drugs that may enhance the therapeutic effects of imatinib mesylate, a commonly used treatment for chronic myeloid leukemia. By inhibiting autophagy, these drugs can increase the effectiveness of imatinib mesylate and improve outcomes for patients with CML.

Survey research looks at attitudes, obstacles to walking and biking to work

The study found that people with ecologically-friendly attitudes are more likely to actively commute, while a lack of bike racks, showers, and supportive office culture hinder active commuting. The researchers emphasized the importance of designing communities that facilitate physical activity and eco-friendliness.

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.

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.

Racial disparities persist in the treatment of lung cancer

A study found that black patients with non-small cell lung cancer are 37% less likely to receive recommended surgery and 42% less likely to receive recommended chemotherapy than white patients. The disparity remains despite efforts to address inequalities in medical treatment.