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Science News Archive 2011


Page 140 of 311

Pocket chemistry: DNA helps glucose meters measure more than sugar

Researchers at the University of Illinois have developed a method to use glucose meters for detecting multiple targets in various samples. Functional DNA sensors enable the detection of vital metabolites, contaminants, and disease markers in a simple, low-cost, and portable manner.

Epigenetic 'memory' key to nature versus nurture

Scientists have discovered a mechanism for epigenetic memory in plants, which affects the timing of flowering based on environmental conditions. The study reveals that histone modifications can be passed on to offspring, providing a new understanding of how organisms 'remember' their environment.

Soft spheres settle in somewhat surprising structure

Researchers at Penn State have discovered that particles in liquids don't always settle at the bottom based on size or speed. Instead, they arrange themselves in a way that achieves the lowest energy state, often resulting in a layered structure with larger particles at the bottom and smaller ones above.

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.

Weak synchronization in toddler brains may be a biological marker for autism

Scientists at the Weizmann Institute of Science have identified a biological sign of autism in very young toddlers by scanning their brain activity while sleeping. The study found that autistic brains exhibited weaker synchronization between brain areas tied to language and communication compared to non-autistic children.

Battle won against Asian tiger mosquito

A combination of strategies, including eliminating stagnant water and removing vegetation, significantly reduced the number of tiger mosquito eggs in treated areas. The study, published in Transactions of the Royal Society of Tropical Medicine and Hygiene, demonstrates a substantial reduction in eggs compared to control areas.

Shining a light on the elusive 'blackbody' of energy research

Researchers at Boston College have developed a designer metamaterial that can engineer emitted 'blackbody' radiation with an efficiency beyond natural limits, opening doors for innovative energy harvesting applications. The material's ability to control emissivity could further enhance energy conversion efficiency.

Drexel study: Misuse of pain medication is pathway to high-risk behaviors

A Drexel University study reveals that misuse of prescription painkillers is a pathway to injecting drugs, particularly among young people with a history of opioid use. The research found common factors like family history of drug misuse and access to prescriptions contributed to the initiation of prescription drug misuse.

Apple iPhone 17 Pro

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

ONR technology to aid in war on drugs

The Joint Interagency Task Force South is installing a new software technology developed by the Office of Naval Research (ONR) to eliminate illegal drug trafficking. The Command and Control Rapid Prototype Continuum (C2RPC) system provides continuous rapid delivery of warfighter capability to support time-sensitive decision making.

Cellular stress can induce yeast to promote prion formation

Research in yeast reveals that cellular stress can induce the formation of infectious protein particles called prions, which are associated with neurodegenerative disorders. The study identifies a protein called Lsb2 that promotes spontaneous prion formation under stress conditions.

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.

Endangered river turtle's genes reveal ancient influence of Maya Indians

A recent genetic study found that centuries of human activity, including trade and rituals, have mixed the genetic lineages of the critically endangered Central American river turtle. The turtles' shells made them easy to transport, allowing them to be brought together from isolated river basins.

Earliest watery black hole discovered

Astronomers have found the largest and farthest reservoir of water ever detected in the universe, located in a distant quasar with a massive black hole. The discovery provides valuable information about the early universe's water vapor behavior and its influence on cosmic evolution.

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.

NASA catches 3 tropical cyclones at 1 time

NASA's GOES-13 satellite captured an image of Tropical Depression Bret, Tropical Storm Cindy, and a low-pressure area associated with a tropical wave in the Caribbean. The storm system is located in two ocean basins, with Bret and Cindy racing through the North Atlantic and Hurricane Dora weakening in the eastern Pacific.

PGA invests in minority golf opportunities

The PGA has implemented targeted efforts to improve minority participation in golf, including the PGA Professional Golf Management Program accreditation at the University of Maryland, Eastern Shore. The program has helped expose minority students to golf and provided scholarships to encourage participation.

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.

Farthest, largest water mass in universe discovered

Researchers detected massive water vapor in a distant quasar, equivalent to 34 billion times the mass of Earth. The discovery was made using a spectrograph called Z-Spec and reveals a time when the universe was only 1.6 billion years old.

NSF awards $3 million to triangle scientists to improve federal data

A team of statisticians from Duke University received a $3 million grant to develop statistical methods for making US Census Bureau data available to researchers and the public. The Triangle Census Research Network will preserve anonymity while improving data quality and linking it to related sources.

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.

New target found for nitric oxide's attack on salmonella bacteria

Researchers have found a new target for nitric oxide's antimicrobial actions, which disrupts Salmonella's metabolism and prevents its growth. The discovery sheds light on the body's natural defenses against infection and may lead to the development of new broad-spectrum antimicrobials.

Hospital bacteria outbreak linked to nasal spray

A bacterial outbreak of Burholderia cepacia complex was linked to contaminated nasal spray products, leading to a national recall. The investigation highlighted the need for improved testing protocols in the production and distribution of over-the-counter pharmaceuticals.

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.

Metabolic syndrome increases risk of both major types of primary liver cancer

A large-scale study found metabolic syndrome significantly increases risk of developing hepatocellular carcinoma and intrahepatic cholangiocarcinoma, two major types of primary liver cancer. Metabolic syndrome was present in 37% of persons who developed HCC and 30% of those who developed ICC, compared to 17% of those without cancer.

Grazing management effects on stream pollutants

A study by Iowa State University found that grazing management practices can greatly reduce the amount of sediment, phosphorus, and pathogens deposited into pasture streams. Simple and practical techniques can be implemented to minimize pollution while allowing cattle to graze on pasture stream banks.

Fluke 87V Industrial Digital Multimeter

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

UCI-led butterfly study sheds light on convergent evolution

A team of international researchers led by UC Irvine's Robert Reed has identified a single gene called optix responsible for red wing color patterns in various passion vine butterfly species. This breakthrough discovery sheds light on how mimicry and convergent evolution occur at a genetic level.

Forest fungus factory

A University of Vermont scientist has developed a bio-pesticide using an insect-killing fungus and sweet whey to reduce the growth rate of hemlock woolly adelgid. The treatment showed promising results in trials, with a 50% reduction in pest population in infested trees.

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.

Diamonds pinpoint start of colliding continents

Researchers analyzed data from over 4,000 mineral inclusions in diamonds to determine that the Wilson cycle of plate tectonics began around 3 billion years ago. This marks the start of the process that shaped the Earth's continental crust and led to mountain building and ocean basin closures.

MIT: Inside the innards of a nuclear reactor

Researchers at MIT have developed tiny robots to inspect underground pipes in nuclear reactors, detecting corrosion and radioactive leaks. The robots can withstand extreme environments and transmit images in real-time, enabling safer operation of aged reactors.

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.

Chance favors the concentration of wealth, U of M study shows

A University of Minnesota study found that chance consistently pushes wealth into the hands of a few individuals, leading to dramatic concentration of wealth over time. The researchers' model, published in PLOS ONE, suggests that high variation among individual return rates accelerates wealth concentration.

Software helps synthetic biologists customize protein production

A new software program, called a DNA compiler, designs synthetic DNA sequences to control protein production in simple organisms. The technology allows biotechnology companies to quickly identify the best DNA sequence for a particular application, increasing efficiency and productivity.

Do we buy cosmetics because they are useful or because they make us feel good?

A study by UPV/EHU shows that people prioritize emotional reasons over usefulness when buying cosmetics. Women's negative emotions about their appearance drive their purchasing decisions. The study highlights the importance of addressing these negative feelings through persuasive marketing strategies focused on emotional aspects.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

NASA satellite video and images show Dora become a major hurricane

Hurricane Dora's eye was visible on multiple NASA satellites, including Aqua and GOES-11, providing forecasters with clear views of the storm's intensification. The National Hurricane Center expects some weakening by tonight and rapid weakening on Friday as Dora battles wind shear and cooler waters.

Minority participants crucial to effective aging studies

The Gerontological Society of America recommends including ethnically diverse populations in aging research. Minority participants are key to developing recruitment and retention methods that address unique cultural and sociopolitical challenges.

Parasites help reveal new ecological rules

Scientists at UC Santa Barbara have discovered two general rules for ecosystem abundance: one based on body size and food chain position, and another that biomass production is independent of animal size or type.

Optimism associated with lower risk of having stroke

A new study suggests that people with higher levels of optimism may be less likely to have a stroke. The research found that each point increase in optimism corresponded to a 9 percent decrease in acute stroke risk over a two-year follow-up period.

Hepatitis B vaccination for health care students lags behind recommendations

A study found that only 59.8% of health care students had documentation of complete hepatitis B vaccination, while 83.8% were protected against infection when tested for antibodies. The rates are lower than the US government's Healthy People 2010 goal of 90% hepatitis B vaccination coverage among health care workers.

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.

Chronic pain in homeless people not managed well: Study

A study by St. Michael's Hospital found that nearly half of homeless people with chronic pain use street drugs to treat their condition, highlighting the need for improved approaches to managing chronic pain in this population. The study also highlights the importance of community outreach programs and education for healthcare provider...

Link between competing phases in cuprates leads to new theory

Scientists have discovered a link between two competing states of a cuprate superconductor and developed a mathematical theory to describe their relationship. The new theory should help predict the behavior of the material under varying conditions, shedding light on its potential for improving energy efficiency and storage.

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.

Chromosome number changes in yeast

Researchers found that yeast chromosome complement has decreased in all except one event, a whole genome duplication, where chromosomes fused or broke and recombined. This study sheds light on the evolution of chromosome complements in yeast and other organisms.

'Freaky mouse' defeats common poison

A Rice University study reveals that European house mice have developed resistance to warfarin through two distinct processes: point mutation and horizontal gene transfer. Algerian mice, a desert-dwelling species, are believed to have passed the resistant genome into house mice in Spain or North Africa.

Proteins enable essential enzyme to maintain its grip on DNA

Researchers at Ohio State University identified a family of proteins that close a critical gap in RNA polymerase, enabling it to maintain its grip on DNA and activate genes. This discovery has implications for antibiotic development and could contribute to understanding gene expression in all living organisms.