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Science News Archive September 2008


Page 19 of 24

How are herbicides discovered?

The traditional method of discovering herbicides involves random searching of chemicals, resulting in most commercial products. New biotech information allows companies to create targeted weed killers. The American Society of Agronomy developed an interactive web lesson to teach students about the history and development of herbicides.

September/October 2008 Annals of Family Medicine tip sheet

Federal funding cuts for physician training programs could lead to a shortage of physicians in community health centers, with potentially over 2,200 fewer staff members. Meanwhile, home blood pressure monitoring has been shown to be more effective than office measurements in predicting risk of death for patients with 'white coat hypert...

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.

Vitamin B12 may protect the brain in old age

A study found that people with higher vitamin B12 levels were six times less likely to experience brain shrinkage compared to those with lower levels. Researchers suggest adjusting diets to consume more vitamin B12 may help prevent brain shrinkage and save memory.

Safety of anti-malarial drugs in pregnancy must be monitored

A new study highlights the need to develop systems to assess antimalarial drug safety in early pregnancy, as artemisinins have been shown to be toxic to embryos in animal models. An international antimalarial pregnancy exposure registry is proposed to enable targeted pharmacovigilance and timely assessment of risk-benefit profiles.

Dirty air brings rain -- then again, maybe not

A new study suggests that air pollution can both increase and decrease rainfall, depending on local environmental conditions. The research, led by Prof. Daniel Rosenfeld of the Hebrew University of Jerusalem, found that aerosol particles in the air can affect cloud formation and precipitation patterns.

Calculating how breast cancers will respond to tamoxifen

Australian scientists identified four groupings of genes related to breast cancer cell behavior and their impact on tamoxifen treatment. This discovery could help clinicians predict which women will respond well to anti-oestrogen therapies.

Rattlesnake-type poisons used by superbug bacteria to beat our defenses

Scientists discovered that biofilm bacteria produce harmful chemicals, including a protein similar to rattlesnake venom, which can cause disease progression and resistance to antibiotics. This research has significant implications for the treatment of hospital superbugs, cystic fibrosis, and cancer.

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.

How plants fine tune their natural chemical defenses

Researchers at the Salk Institute discovered that only a few mutations in an enzyme can shift the output of plant compounds, allowing them to adapt to changing environments. This finding has implications for developing environmentally friendly fungicides and pesticides, as well as new flavors and fragrances.

A new 'Pyrex' nanoparticle

Researchers have developed a new method to fabricate borosilicate glass nanoparticles with increased stability, overcoming limitations of current nanoparticle materials. These nanoparticles could enable applications in diagnostic tests, targeted drug therapy, photonic devices, ultrasonic microscopy, and chemical filtration membranes.

Living sensor can warn of arsenic pollution

Scientists have discovered a living sensor bacteria that can thrive in cold temperatures and clean up arsenic contamination. The discovery also opens up possibilities for developing an arsenic biosensor to warn of pollution escapes into watercourses or drinking water supplies.

As easy as 1, 2, 3: Number sense correlates with test scores

A study by researchers at Johns Hopkins University found a strong correlation between children's ability to estimate the number of objects in a group and their performance in school math. The study suggests that this basic 'number sense' is related to formal mathematics learned in school.

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.

Milk may help bacteria survive against low levels of antibiotics

Scientists have discovered that milk may help prevent Staphylococcus bacteria from being killed by low concentrations of antibiotics. This could lead to a better control of mastitis, reduce disease costs, and lower the risk of antibiotic-resistant bacteria spreading.

Experts meet on need for new rules to govern world's fragile polar regions

The need for international cooperation and regulation is growing in response to climate change, overfishing, pollution, and other impacts on polar ecosystems. The conference aimed to identify priorities for law-making and research, as well as offer advice to decision-makers on protecting the Arctic and Antarctic regions.

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.

3T MRI leads to better diagnosis for focal epilepsy

A recent study found that 3T MRI is better at detecting and characterizing structural brain abnormalities in patients with focal epilepsy than 1.5T MRI, leading to a better diagnosis and safer treatment options. This improvement was seen in the detection of lesions and accurate characterization of abnormalities.

JCI online early table of contents: Sept. 5, 2008

STDs like genital herpes and chlamydia increase the risk of becoming infected with HIV due to inflammation in Langerhans cells. Anti-inflammatory therapies might help prevent HIV transmission by modulating the immune response.

Apple iPhone 17 Pro

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

Changes in urine could lead to BSE test for live animals

Scientists have identified biomarkers in cattle urine that can indicate the presence and progression of Bovine Spongiform Encephalopathy disease. This discovery may lead to a urine-based test for detecting BSE in live animals, allowing for alternative surveillance procedures and improving breeding stock health.

Biophysical Society names 2009 award recipients

The Biophysical Society has awarded eight individuals in recognition of their groundbreaking work in biophysics. Robert Stroud and Stephen H. White were recognized for their pioneering research in transmembrane biology and lipid structure, respectively.

1 step back ... 2 steps forward

A new treatment strategy involving sorafenib could 're-sensitize' tumors, enabling anti-hormonal drugs like aromatase inhibitors to be effective again. Preliminary analysis shows a clinical benefit response in 26 percent of patients taking both sorafenib and anastrozole.

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.

Atomic structure of the mammalian 'fatty acid factory' determined

The atomic structure of mammalian fatty acid synthase has been determined, revealing the details of its catalytic active sites. This breakthrough holds promise for the development of new anti-cancer and obesity treatments by targeting this complex molecular synthetic machine.

Fluke 87V Industrial Digital Multimeter

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

How STDs increase the risk of becoming infected with HIV

Research suggests that sexually transmitted diseases (STDs) can increase the risk of contracting HIV by activating Langerhans cells in the skin and vagina. This activation allows the virus to spread more easily, highlighting the potential for anti-inflammatory treatments to prevent HIV transmission.

Goulbourne earns NSF award to research heart stent sensors

Nakhiah Goulbourne's NSF CAREER award aims to develop specific models and experiments for heart stent sensors. The goal is to create diagnostic tools that can dynamically monitor the mechanical state of the stented artery, reducing implant failures and improving cardiovascular flow.

Nutritionists of the UGR suggest diet improvements during Ramadan

Researchers from the University of Granada found that university students following Ramadan experience macronutrient imbalances, leading to increased corporal fat and reduced muscular mass. A new diet plan has been proposed to counterbalance these effects by reducing fat and increasing protein and carbohydrate intake.

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.

Science paper examines role of aerosols in climate change

A team of scientists has developed a new framework to better account for the impact of aerosols on precipitation in climate models. The study suggests that increased aerosol loading may lead to changes in precipitation patterns, affecting regional water resources and global climate systems.

Free drug samples may end up costing uninsured more

Researchers found that uninsured patients were more likely to receive brand-name drugs after the clinic closed its drug sample closet, leading to increased costs. In contrast, Medicaid patients showed no significant change in generic prescribing despite the availability of free samples.

Tracking down the menace in Mexico City smog

A new report by scientists suggests that some of the most harmful air pollution in Mexico City originates from industrial sources, including garbage incineration. The study monitored air quality throughout the month of March 2006 and found metal-containing aerosols implicated in adverse health effects.

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.

How memories are made, and recalled

Scientists at UCLA and the Weizmann Institute of Science recorded individual brain cells as they recalled memories from epilepsy patients' brains. The study confirms that spontaneous memories arise with activity of the same neurons that were recorded as they fired when the memory was first being made.

What is a gene?

A study analyzing 300 newspaper articles reveals five main 'gene frames' used by media, from deterministic to evolutionary and playful metaphors. The findings aim to provide a tool for scientists and journalists to better communicate genetics to the public.

Tracking the reasons many girls avoid science and math

A three-year study found that parent support and expectations are crucial for middle- and high-school students, with engaging teachers and positive experiences also playing a significant role. The research highlights the importance of tailoring interventions to individual subgroups, as barriers and supports vary between disciplines and...

Meta Quest 3 512GB

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

Iowa State wins $18.5M grant to create NSF Center for Biorenewable Chemicals

The Iowa State University-led NSF Engineering Research Center for Biorenewable Chemicals aims to develop technologies transforming the petroleum-based chemical industry into a biorenewable industry. The center will educate students in multidisciplinary research and global collaborations, advancing the production of biorenewable chemicals.

Molecular evolution is echoed in bat ears

Research by Queen Mary University of London scientists found that some bat species' echolocation genes are similar to those of fruit bats, indicating possible independent evolution of the trait. This suggests that echolocation may not be a single evolutionary event but rather an example of convergent evolution.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Older Vietnamese report more mental health problems

A recent study by UC Irvine reveals that older Vietnamese Americans are more likely to experience mental health issues, including depression and PTSD, stemming from their experiences as political refugees. The findings highlight the need for improved community mental health services to address these long-standing problems.

Major flooding risk could span decades after Chinese earthquake

The Chinese earthquake has triggered a significant risk of flooding and power shortages in the Sichuan Basin, which could last for decades. Dr. Alex Densmore's research found that landslides and sediment buildup pose a major threat to river valleys and reservoirs.

ISU researchers help map first plant-parasitic nematode genome sequence

Researchers at Iowa State University have contributed to the release of the annotated genome of Meloidogyne incognita, a destructive nematode responsible for $157 billion in agricultural damage annually. The sequencing achievement provides a resource for understanding and controlling this widespread pest.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Scientists peel away the mystery behind gold's catalytic prowess

Researchers from Lehigh University and Cardiff University have identified gold nanoparticles triggered by bilayer clusters as responsible for the critical CO oxidation reaction. The discovery could help protect hydrogen fuel cells and firefighters entering burning buildings.

Molecular evolution is echoed in bat ears

Researchers studied the Prestin gene in echolocating bats and fruit bats, finding similarities in distantly related species. This suggests that echolocation has evolved more than once in bats, defying conventional wisdom on evolutionary relationships.

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.