Researchers from North Carolina State University have developed a new technique that uses existing technology to allow researchers and natural resource managers to collect significantly more information on water quality to better inform policy decisions.
"Right now, incomplete or infrequent water quality data can give people an inaccurate picture of what's happening – and making decisions based on inaccurate data can be risky," says Dr. François Birgand, an assistant professor of biological and agricultural engineering at NC State and co-author of a paper describing the work. "Our approach will help people get more detailed data more often, giving them the whole story and allowing them to make informed decisions."
The banana variety Yangambi km5 produces toxic substances that kill the nematode Radopholus similis, a roundworm that infects the root tissue of banana plants – to the frustration of farmers worldwide. The finding bodes well for the Grande Naine, the export banana par excellence, which is very susceptible to the roundworms.
This news release is available in German.
Scientists in Freiburg may have discovered a fundamental aggravating factor in autoimmune diseases. If B-lymphocytes lack the protein PTP1B, the cells will become hyperactive for stimulatory signals and can thus promote an autoimmune attack. This study offers an additional explanation to how B-cells regulate an immune response.
Beer drinkers know that hops are what gives the drink its bitterness and aroma. Recently, scientists reported that the part of hops that isn't used for making beer contains healthful antioxidants and could be used to battle cavities and gum disease.
A new identified some of the substances that could be responsible for these healthful effects.
How do researchers know what color ancient fossils were when they lived?
Paleontologists studying fossilized feathers have proposed that the shapes of certain microscopic structures inside the feathers can reveal the color of ancient birds but new research finds that it is not yet possible to tell if these structures – thought to be melanosomes – are what they seem, or if they are merely the remnants of ancient bacteria.
Synthetic spider silk of fantastical, superhero strength is finally speeding toward commercial reality.
The material, which is five times stronger than steel, could be used in products from bulletproof vests to medical implants, according to an article in Chemical&Engineering News (C&EN).
ITHACA, N.Y. – Like mobsters following strict orders, newly engineered molecules called "ubiquibodies" can mark specific proteins inside a cell for destruction – a molecular kiss of death that is paving the way for new drug therapies and powerful research tools.
Led by professor Matthew DeLisa, chemical engineers at Cornell University have developed a new type of antibody, called a "ubiquibody," which is an antibody fragment they have inserted into the natural process known as the ubiquitin-proteasome pathway (UPP). Their work appears in the March 16 issue of the Journal of Biological Chemistry and is highlighted in an analysis piece in the publication SciBX.
This news release is available in French.
Montreal, March 5, 2014 — There are clear benefits to raising a bilingual child. But could there be some things learning a second language doesn't produce, such as a more open-minded youngster?
New research from Concordia University shows that, like monolingual children, bilingual children prefer to interact with those who speak their mother tongue with a native accent rather than with peers with a foreign accent.
Imagine driving on a dark road. In the distance you see a single light. As the light approaches it splits into two headlights. That's a car, not a motorcycle, your brain tells you.
A new study found that neural circuits in the brain rapidly multitask between detecting and discriminating sensory input, such as headlights in the distance. That's different from how electronic circuits work, where one circuit performs a very specific task. The brain, the study found, is wired in way that allows a single pathway to perform multiple tasks.
Inspired by this embryonic induction mechanism, Ingber and Basma Hashmi, a Ph.D. candidate at SEAS who is the lead author of the current paper, set out to develop a way to engineer artificial teeth by creating a tissue-friendly material that accomplishes the same goal. Specifically, they wanted a porous sponge-like gel that could be impregnated with mesenchymal cells, then, when implanted into the body, induced to shrink in 3D to physically compact the cells inside it.
A new dinosaur species found in Portugal is one of the largest carnivorous dinosaurs from the Jurassic period - and may be the largest land predator discovered in Europe - 30 feet long and weighing up to 5 tons.
Scientists discovered bones belonging to this dinosaur north of Lisbon. They were originally believed to be Torvosaurus tanneri, a dinosaur species from North America. Closer comparison of the shin bone, upper jawbone, teeth, and partial tail vertebrae suggest to the authors that it may warrant a new species name, Torvosaurus gurneyi.
Research in The New England Journal of Medicine and Human and Molecular Genetics journals finds that mutation in the STAG3 gene is the major cause of human fertility disorders, as it provokes a loss of function of the protein it encodes.
STAG3 encodes a meiosis-specific subunit of the cohesin ring, the biological process through which, from a diploid somatic cell, a haploid cell or gamete is produced.
Cohesins are protein complexes that bind two straps of DNA and are implicated in its repair, replication and recombination, as well as in its chromosomal stability, transcription regulation, stem-cell pluripotency, and cell differentiation.
Genetic study in a family
Soybeans are a tremendously successful crop and a new study that traced the genetic changes in varieties over the last 80 years of soybean breeding found that increases in yield gains and an increased rate of gains over the years are largely due to the continual release of greater-yielding cultivars.
Some are concerned that converging on optimal crops for each region might be a bad thing but plentiful food tells a different story.
University of Arizona researchers snapped images of a planet outside our solar system with an Earth-based telescope using essentially the same type of imaging sensor found in digital cameras instead of an infrared detector. Although the technology still has a very long way to go, the accomplishment takes astronomers a small step closer to what will be needed to image earth-like planets around other stars
NASA has successfully concluded a remotely controlled test of new technologies that would empower future space robots to transfer hazardous oxidizer – a type of propellant – into the tanks of satellites in space today.
Concurrently on the ground, NASA is incorporating results from this test and the Robotic Refueling Mission on the International Space Station to prepare for an upcoming ground-based test of a full-sized robotic servicer system that will perform tasks on a mock satellite client.
Collectively, these efforts are part of an ongoing and aggressive technology development campaign to equip robots and humans with the tools and capabilities needed for spacecraft maintenance and repair, the assembly of large space telescopes, and extended human exploration.
Evolutionary biologists have long considered bird song to be an exclusively male trait, resulting from sexual selection. A new paper says that's not the whole story.
It doesn't turn Darwin's theory of sexual selection on its head, but it does mean there is more to the story than what Darwin proposed. Sexual selection has played a major role in the evolution of elaborate bird song but other selection pressures or processes have also probably played a role, especially at the initial stages of its evolution, the authors note.
Frequent Facebook users also share a greater risk of eating disorders, according to a new psychology paper.
The small sample used 960 college students (naturally) and determined that more time on Facebook was associated with higher levels of disordered eating. Females who placed greater importance on receiving comments and "likes" on their status updates and were more likely to un-tag photos of themselves and compare their own photos to friends' posted photos reported the highest levels of disordered eating.
To begin, an example of failed humor. Two friends in their 20s (called ‘L’ who is female, and ‘R’ who is male) are conversing :
L: “What did the big cup say to the little cup?”
R: (sarcastically) “I’m bigger than you?”
L: “No, Nothing. Cups can’t talk”.
R: (completely ignoring L) “I can hold more water than you?”-->
While Barbie was once as stereotypical as G.I. Joe, in modern years she can 'be anything.' Ken is still kind of annoying, however.
Yet to some it is not enough. Barbie must go. You won't be surprised to find that an article in Sex Roles, which touts itself as "an interdisciplinary behavioral science journal offering a feminist perspective", finds that Barbie is still holding girls back. You can save yourself all the heteronormative jargon about objectification theory and just read this overview.