Bluesky Facebook Reddit Email

Science News Archive March 2011


Page 19 of 28

Myth of the Egyptian 'girly man'; questions on recent Egyptian revolt

The British depiction of Egyptians as weak and subservient led to a shift towards masculine ideals, including physical health and bodybuilding. This, in turn, contributed to the formation of an anti-colonial nationalist movement that reversed the colonial narrative and created a new sense of national identity.

An advance toward blood transfusions that require no typing

Researchers have made a breakthrough in developing a universal blood product that can be transfused without matching the donor and recipient's blood types. This new approach uses immunocamouflage to hide blood cells from antibodies, allowing for a reduced risk of fatal immune reactions.

Apple iPhone 17 Pro

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

A new look at the adolescent brain: It's not all emotional chaos

A recent study published in Neuron found that certain brain regions, including the ventral striatum, play a positive regulatory role in adolescent interpersonal functioning. This suggests that teenagers may be less susceptible to peer pressure and risky behavior as they mature.

Study shows how plants sort and eliminate genes over millennia

Researchers studied the genome of Arabidopsis suecica, a hybrid species formed tens of thousands of years ago, to understand how genes are sorted and eliminated. The findings suggest that genes from one parent are preferentially expressed over the other, leading to the deletion of unfavored genes.

Combating cucurbit yellow stunting disorder virus

Researchers identify resistance to cucurbit yellow stunting disorder virus (CYSDV) in exotic melon varieties, with potential applications for the southwestern United States. Whitefly populations and high temperatures exacerbate CYSDV infection, highlighting the need for integrated management strategies.

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.

Nottingham scientists identify trigger in cat allergy

Researchers at the University of Nottingham have discovered a cell component that plays a key role in triggering allergic responses to cat dander. The finding could lead to the development of new treatments for allergies and asthma.

New mouse models generated for MYH9 genetic disorders

Researchers have developed mouse models of human MYH9 genetic disorders, which cause enlarged platelets and kidney disease. The models will aid in understanding the development of these diseases and identifying defects in the gene product.

Researchers identify new form of muscular dystrophy

A new gene mutation has been identified as the cause of a rare form of muscular dystrophy, with severe cognitive impairment. Researchers created a mouse model to study the mutation and found similar muscle and brain abnormalities, offering hope for potential treatments.

New genetic deafness syndrome identified

Scientists have identified a mutation on the CACNA1D gene that affects two families in Pakistan, leading to deafness and an irregular heartbeat. The mutated protein still sits in the cell's surface membrane but fails to open the calcium channel.

Fluke 87V Industrial Digital Multimeter

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

Sunlight can influence the breakdown of medicines in the body

A Swedish study found that sunlight influences the body's ability to break down medicines, with seasonal variations in drug concentrations closely linked to vitamin D levels. This may lead to increased sensitivity to certain medications, highlighting a new model for understanding individual differences in drug effects.

New microscope decodes complex eye circuitry

Researchers have discovered that retinal ganglion cells receive visual information from amacrine cell dendrites running along the null-direction, allowing for directional selectivity. This mechanism relies on asymmetric synapses and inhibitory influences between neighbouring amacrine cells.

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.

Drug use increasingly associated with microbial infections

Illicit drug users are more susceptible to serious infections due to exposure to microbial pathogens. Unsterile injection practices, contaminated needles, and the use of cutting agents can facilitate the spread of bacterial, viral, fungal, and protozoal infections.

Synthetic biology: TUM researchers develop novel kind of fluorescent protein

Scientists at TUM create customized fluorescent proteins in various colors for future applications by incorporating a genetically encoded non-natural amino acid into widely used natural proteins like GFP. The new bio-molecule exhibits a pseudo-Stokes shift, allowing it to be excited with commercially available black-light lamps.

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.

Web-crawling the brain

A team of researchers at Harvard Medical School has developed a technique to unravel the complex neural circuits in the brain. By crawling through individual connections, they created a partial wiring diagram that revealed interesting insights into how the brain functions.

'Singing' mice -- the ongoing debate of nature vs. nurture

Researchers have found that mice exhibit complex vocalizations with age, suggesting potential for vocal learning. However, a cross-fostering experiment suggests that mouse songs may be genetically determined. The debate over nature vs. nurture remains unresolved, highlighting the complexities of scientific research.

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.

Toward real time observation of electron dynamics in atoms and molecules

Researchers use high harmonic generation method to study electronic correlations in xenon atoms, opening opportunities for investigating electron dynamics on the attosecond timescale. The new laser source developed at ALLS proves ideal for HHG from atoms and molecules, providing information on giant resonance of xenon.

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.

NSF grant for infrared imaging in pit vipers

A three-year NSF grant is supporting research on the mechanisms of infrared imaging in pit vipers and pythons. Graduate students are studying the proteins responsible for this ability, while undergraduate researchers are training Burmese pythons to perform complex behaviors in response to thermal signals.

Alice Chen receives Lemelson-MIT student prize

Alice Chen's inventions aim to improve drug development and disease modeling using humanized mice with tissue-engineered human livers. Her work has the potential to lead to a safer, less expensive, and more efficient path for drug testing.

Rensselaer professor utilizing New York state grant to study adult stem cells

Deanna Thompson is utilizing NYSTEM funding to study adult neural stem cells for developing new stem cell therapies and research tools. Her research aims to understand how these stem cells proliferate and differentiate into new nerve cells, with potential applications in treating brain injuries, illnesses, and cancers.

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.

Novel method could improve the performance of proteins used therapeutically

Whitehead Institute scientists have developed a novel method using the enzyme sortase A to site-specifically modify proteins, increasing their potency, thermal stability, and metabolism. This technique can be applied to improve therapeutically important proteins such as interferon alpha 2 and granulocyte colony-stimulating factor 3.

A-ha! The neural mechanisms of insight

A new brain-imaging study has identified specific brain activity associated with 'A-ha!' moments, which may promote the formation of long-term memories. The researchers found that higher activity in the amygdala during insight moments predicted more successful performance in memory tasks.

Passive smoking increases risk to unborn babies, study says

A study published in Pediatrics found that pregnant non-smokers exposed to second-hand smoke have a higher risk of delivering stillborn babies or babies with congenital birth defects. Passive smoking increased the risk of stillbirth by nearly one-quarter and was linked to a 13% increased risk of congenital birth defects.

U of M researchers using salmonella to fight cancer

Researchers are using genetically modified salmonella packaged with Interlueken 2 to create a two-prong attack on cancer. The therapy, administered orally, shows promise in controlling tumors in the gut and may offer a cheaper and less toxic alternative to chemotherapy and radiation.

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.

Pollution forms an invisible barrier for marine life

Researchers found that sewage discharge and urban runoff from coastal areas are affecting the genetic structure of sea stars, limiting their dispersal and decreasing genetic diversity. This study highlights the impact of human activities on marine ecosystems, suggesting a need for more effective management strategies.

More reasons to be nice: It's less work for everyone

A new study suggests that holding doors for others may be motivated by a desire to reduce the effort required, not just out of respect. The research found that when multiple people follow, the person holding the door holds it longer, and followers hasten their steps to fulfill an implicit pact.

SCOPE and Elsevier partner to publish Environmental Development

The new journal Environmental Development aims to provide solutions to regional environmental issues through rapid assessments and integrative approaches. It bridges the gap between natural sciences, social sciences, and policy makers to foster global action and knowledge sharing.

Missing DNA helps make us human

Researchers identified 510 missing genetic segments that distinguish humans from chimpanzees and other animals. These segments affect gene regulation, enabling traits like large brains and sensory whiskers. The study reveals how human evolution occurred through subtle DNA changes.

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.

Baby stars born to 'napping' parents

Cardiff University astronomers propose that young stars' long naps could lead to the birth of smaller stars and planets. The researchers developed advanced computer models to simulate young star behavior, finding that disc fragmentation is possible in nature.

NASA and other satellites keeping busy with this week's severe weather

Satellites like GOES-13 and NASA's Aqua satellite captured images of a huge cold front stretching from Minnesota to Louisiana, generating tornadoes and heavy rainfall. The storm system is expected to bring up to 1 quarter inch more rain to the eastern US, with potential flooding in various areas.

New study proves the brain has 3 layers of working memory

Researchers at Rice University and Georgia Tech found evidence for three distinct layers of working memory, including a core focusing on one active item and surrounding areas holding multiple items. Predictability can improve multitasking by automizing certain tasks, allowing individuals to effectively switch between tasks.

NIST electromechanical circuit sets record beating microscopic 'drum'

Physicists at NIST have demonstrated an electromechanical circuit that processes information and controls motion at the quantum scale. The device uses a micro drum to transmit mechanical vibrations, achieving strong interactions between microwave light and the drum, paving the way for quantum applications.

Celestron NexStar 8SE Computerized Telescope

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

Banana peels get a second life as water purifier

Researchers have discovered that minced banana peels can quickly and efficiently remove toxic metals like lead and copper from river water, outperforming other materials in the process. The discovery could provide a sustainable solution for water purification, especially in areas where access to clean drinking water is limited.

Weed-eating fish 'key to reef survival'

A new study finds that weed-eating fish like parrotfish and surgeonfish can only keep coral reefs clear of weeds before they take over. Beyond a certain density, the fish no longer control the weeds, allowing the corals to be lost.

Missing DNA makes us human

The study found that humans have unique non-coding DNA segments missing in chimpanzees and other animals, which are correlated with specific human physical characteristics. These differences may have evolved to favor pair-bonding relationships and group living, rather than rapid copulation.

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.

Gene variant influences chronic kidney disease risk

Researchers identified a single genetic mutation in the CUBN gene linked to albuminuria, a condition indicating kidney disease, in both diabetic and non-diabetic individuals. The study's findings have significant implications for understanding the mechanisms behind kidney disease and potentially leading to novel treatment targets.

Meta Quest 3 512GB

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

Learning to see consciously

Researchers found that training improves subjective perception of stimuli, leading to conscious sight. The brain regions involved in learning effects differ from those for automatic stimulus processing, suggesting two distinct neural pathways.

How do we combine faces and voices?

A new study has revealed the brain networks involved in person recognition using both face and voice information. The research found that specific regions of the left angular gyrus and right hippocampus are activated when recognizing people from combined visual and auditory cues.

Pinpointing air pollution's effects on the heart

Researchers found that ultrafine particles can activate platelets, increasing the risk of cardiovascular disease, particularly in people with diabetes. The study provides new insights into air pollution's impact on heart health, emphasizing the importance of controlling exposure to pollutants for vulnerable populations.