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Mixed in Biological News

Mothers give interloper's offspring a head start in life

... than their social partner, producing broods of mixed paternity in which the interloper's 'extra pair' ... mate outside their pair to produce clutches with mixed parentage. Remarkably, almost 75% of the ... determine the paternity of individual chicks in mixed broods, but we still don't understand why ...

Smoke smudges Mexico City's air, chemists identify sources

... and Technology . From the top of a building in a mixed industrial and residential area in the northern ... were a combination of lead, zinc and chloride mixed with soot between midnight and 10:00 am. ... chloride or phosphorous, both of which were mixed in with the morning metal aerosols. An absence of ...

Vitamin A pushes breast cancer to form blood vessel cells

... natural or synthetic vitamin A agents--have had mixed results in treating cancer. "Finding that vitamin ... cells together into a structure. When they then mixed the treated cancer cells with endothelial cells ... stopping host-derived angiogenesis have met with mixed success, and we think there could be new ways to ...

New techniques create butanol

... biomass into digesters comprised of a selected mixed culture of thousands of different microbes to ... degrade, an important step that allows Angenents mixed media culture to work its magic. He uses a mixed culture containing thousands of different ...

Predators and parasites may increase evolutionary stability

... enemies, such as predators and parasites, for mixed mating, a reproductive strategy in which ... a dramatic range of mating systems, including mixed mating. The mechanism by which enemies are ... thereby improving the evolutionary stability of mixed mating as a reproductive system. Consideration ...

Explosive growth of life on Earth fueled by early greening of planet

... that fell on vegetated areas, infiltrated into coastal ground waters and mixed with marine pore fluids. During sea level drops, these coastal mixing ... Neoproterozoic," Knauth said. "Vast areas of limestone can form in these mixed pore fluids." All of which points to an environmental trigger of the ...

Design input accelerates new technologies' route to market

... detect sudden and serious changes to a baby's medical condition. The mixed Reality Lab within the School of Computer Science has developed a powerful mixed Reality Architecture (MRA) system that can be utilised to enable ...

NEWSLETTER: Antibody Fragment Production Breakthrough with 2nd Generation EBA

... the need for prior filtration.   Selection of proprietary mixed mode ligand chemistry enables efficient control of the capture and release ... production facilities and maintain biological activity of the product. mixed mode ligands are selected for their suitability for industrial processing, ...

Case Western Reserve University engineers hit pay dirt with clay mixture

... chemical transformation. It can become a hard, lightweight ceramic. When mixed with latex, it becomes a bendable material like rubber. If magnetic ... original aeroclay was made when a graduate student working with Schiraldi mixed clay and water in a blender and then freeze-dried the substance. The ...

Going bananas for sustainable research -- scientists create fuel from African crop waste

... are mashed to a pulp in a hand-operated domestic meat mincer. This pulp is mixed with sawdust to create a mouldable material in Rwanda it would be mixed with sun dried banana stems, ensuring the whole plant is used. Then, ...

Jupiter's shrinking red spot

... is not completely understood scientifically. Up to now, the breakup of oil mixed with dispersants has not been thoroughly studied in the laboratory, and ... Gopalan's talk, "Formation of Long Tails during Breakup of Oil Droplets mixed with Dispersants in Locally Isotropic Turbulence" will be held at 8:39 ....

Pitt researchers use fluorescence to develop method for detecting mercury in fish

... team oxidized a piece of salmon (about the size of a fingertip) in water mixed with a chlorine solution similar to household bleach. The conversion ... from dental amalgam, a common tooth filling composed primarily of mercury mixed with smaller amounts of other metals. Concern exists about the mercury ...

Saving our bees

... to find it. Therefore, a mosaic landscape that has natural areas mixed in with agriculture is important to keep bee colonies healthy. "Today's ... says Williams. "It's not just matrix of natural areas with agriculture mixed in, but a patchwork quilt with animals using all of the areas in the ...

Ethanol byproduct produces green results

... Researchers applied DDGS two ways: to the soil surface, and mixed into the potting media of transplanted ornamentals. Applied to the soil ... but could reduce the amount of hand-weeding typically required." When mixed into the potting media, however, dried distillers grains were toxic to ...

DNA fingerprinting simplified

... of food dyes (red, blue, yellow, and green) purchased at local markets are mixed into a 60% glycerol/water solution and are separated on 1% agarose gels. mixed colors are separated into primary colors (e.g., green into blue and ...

Limitations of charcoal as an effective carbon sink

... may be somewhat overstated. In their study, charcoal was prepared and mixed with forest soil, and left in the soil in each of three contrasting forest ... in northern Sweden for ten years. They found that when charcoal was mixed into humus, there was a substantial increase in soil microorganisms ...

Fraud attempt in a paternity test modifies action protocol in DNA tests

... in a case of extramarital paternity demand , and he admitted that, when he mixed his saliva with someone elses, he attempted to "mislead" the experts in ... as this is the first time it has been described that someone has mixed two types of saliva in order to alter a DNA test; manipulation attempts in ...

New system would use rotating magnetic field to detect pathogens

... been coated with antibodies that attract certain pathogens and are then mixed with blood samples from patients. A critical piece of the technology is a ... are not magnetic unless they are in a magnetic field, so they can be mixed in a solution without attracting each other and clumping together, which ...

Using nanotubes to detect and repair cracks in aircraft wings, other structures

... comprise 1 percent of the structures total weight. The team mechanically mixed the liquid epoxy to ensure the carbon nanotubes were properly dispersed ... heat, which in turn melts a commercially available healing agent that was mixed into the epoxy. The melted healing agent flows into the crack and cools ...

Using green chemistry to deliver cutting-edge drugs

... delicate bioactive components, such as growth factors or proteins, can be mixed into the plasticised polymer without any loss of activity. The process ... liquids they melt, and under these conditions, the bioactive drugs can be mixed in. So we take particles of the drug and wrap every single one up in ...

American Chemical Society's Weekly Presspac -- Aug. 29, 2007

... development of a method to fingerprint coffee to detect when corn has been mixed in to short-change customers. Their study is in the Aug. 8 issue of ACSs ... quality with cereal grains, coffee twigs, and brown sugar sometimes mixed into the genuine article. Their research focuses on detecting corn, ...

Neuropathic pain: The sea provides a new hope of relief

... skin can produce intense pain, severely affecting the person's quality of life. The treatments that give some relief to some patients are a very mixed bunch, nearly all found empirically and with many other effects. Amitriptyline, an anti depressant now used for urinary incontinence, has given ...

'Microfluidic palette' may paint clearer picture of biological processes

... in the chamber would be exposed to different combinations of the drugs. In a single experiment, one could easily study the effects of a wide range of mixed drug concentrations on the same cell type. Another potential application of the microfluidic palette is the study of chemotaxis, the movement of ...

Fujitsu Expands Support for Ethernet Networks With New Additions to XG Switch Product Line

... technology," said Steven Murphy, president and CEO, RELDATA. "As one of the few unified storage solution providers currently shipping products with mixed 1GbE and 10GbE connectivity, we are very excited about the additional opportunities this new product provides. Customers can leverage RELDATA and the ...

Study shows cancer vaccines led to long-term survival for patients with metastatic melanoma

... and then monthly for five months for a total of up to eight injections. The patient's dendritic cells were obtained from their peripheral blood and mixed with a cell culture of the patient's own melanoma cells that had been self-renewing and proliferating in the laboratory. The patient-specific vaccine ...

Smaller than expected, but severe, dead zone in Gulf of Mexico

... re-oxygenated the waters, among other factors. "The winds and waves were high in the area to the west of the Atchafalaya River delta and likely mixed oxygen into these shallower waters prior to the cruise, thus reducing the area of the zone in that region," said Rabalais. "The variability we see ...

Wolf reintroduction proposed in Scottish Highland test case

... and hopefully ecosystem recovery. Researchers believe that areas in Scotland now dominated by pure pine trees were once a diverse mixture of mixed pine, birch forest, abundant alder, rowan, willow, aspen, bird cherry and juniper, with scattered oaks, lichens, trees with holes and cavities for ...

Kornberg Associates Architects Selected to Develop Design for New Stanford University Imaging Center

... in existing interior office space and requires the complete demolition and renovation of 1,160 ft2. The MRI facility will displace 3,200 ft(2)of mixed use space in the basement. "Many of the Psychology Department research investigators have a long walk to the edge of the medical school campus ...

Playing it safe

... used to generate heart, nerve or endothelial cells, as is the case with embryonic stem cells, the scientists can also use them to produce mice with mixed genotypes, known as chimeras, from the new gPs, and thus demonstrate that cells obtained from the testis can pass their genes on to the next ...

A breath mint made from... coffee?

... causes bad breath," says Prof. Rosenberg, "and it's often true, because coffee, which has a dehydrating effect in the mouth, becomes potent when mixed with milk, and can ferment into smelly substances." But not always. "Contrary to our expectations, we found some components in coffee that ...

Caltech researchers explore how cells reconcile mixed messages in decisions about growth

... PASADENA, Calif.The cells in our body are constantly receiving mixed messages. For instance, an epithelial cell might be exposed to one signal telling it to divide and, simultaneously, another telling it to stop ...

Powerful nutrient cocktail can put kids with Crohn's into remission

... was a specially-designed powder that contains all the daily nutrients a person needs. Aboard spacecrafts, astronauts dine on this nutritional powder mixed with water. Since then, these powders have become a common item on the pharmacy shelf. A similar concept works wonders for children suffering ...

Dual role in breast tissue for a protein involved in leukemia

... Washington, DC - A protein known to play a role in growth of some types of leukemia appears to have a mixed function in breast cancer development, say researchers from the Lombardi Comprehensive Cancer Center at Georgetown University Medical Center (GUMC). ...

Researchers create freestanding nanoparticle films without fillers

... of organic molecules. These particles are not very sticky so they don't form coherent thin films unless they are encapsulated in a polymer coating or mixed with molecules called chemical "cross-linkers" that act like glue to stick the nanoparticles together. "Adding this extra material can complicate ...

Bolivian rainforest study suggests feeding behavior in monkeys and humans have ancient, shared roots

... their daily protein intake, i.e. they appear to aim for a target amount of protein each day, regardless of whether they only ate ripe fruit or mixed in other vegetable matter as well. Finding this result in spider monkeys was unexpected because, previously, ripe fruit specialists were thought to ...

Managing Douglas-fir forests for diversity

... (23 feet tall). Where the original hardwood density was retained, Douglas-fir and hardwoods occupy the same canopy layer, 26 to 30 feet tall, in mixed stands that are low in productivity but may have the potential to provide cover and forage for a range of wildlife species. Each of the stand ...

Researcher: Lasers used to detect melamine in baby formula

... the sample and created an absorbance spectrum that was unique to the sample. The same data were collected for pure melamine. When the formula was mixed with melamine and analyzed, the new spectrum was compared to that of the unadulterated formula, showing the concentration of melamine in the sample. ...

Two-pronged model could help foil tough cystic fibrosis infections

... a process called chelation. To mimic the clinical environment, they stuck to the maximum possible tobramycin dose of 1,000 micrograms per milliliter, mixed with a chelator. The combination had a dramatic effect: it disrupted the mass of established and highly resistant bacteria in human airway cells ...

Poison: It's what's for dinner

... as woodrats were captured from each of two western regions: the Mojave Desert and the cooler Great Basin. Rats from both areas were fed rabbit chow mixed either with creosote or juniper. The scientists then scanned the rodents' genetic blueprints to look for active genes known as "biotransformation ...

Desert woodrats switch one dietary poison for another

... woodrats were captured from each of two western regions: the Mojave Desert and the cooler Great Basin. Rats from both areas were fed rabbit chow mixed with either creosote or juniper. The scientists then scanned the rodents' genetic blueprints to look for active genes known as "biotransformation ...
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