Pollution makes crustaceans adapt rapidly
...oxic cyanobacteria (also called "blue-greenalgae") mixed with their favorite food, a more edible type of algae. So thecrustaceans adapted to handle a less nutritious food that would have seriouslystunted the growth of their ancestors, and they became one of the important,natural controls for toxic cyanob...Learning how organs tell left from right
...dal knockout experiments. The actual result was a mixed bag, but it appears that Pitx2 is crucial indetermining the "leftness of the lung," say Rosenfeld and his colleagues.Without Pitx2, both sides of the lungs of the knockout mice looked likethe right side of a normal lung. The left side of a normal p...'Knockout' mouse may lead to major understanding of human kidney disorder
...e human disease. However, when injected with IgA mixed with uteroglobin, theanimals failed to develop the condition. "These results indicate that one of the essential functions ofuteroglobin is to prevent abnormal IgA-deposition and consequently, theIgA-nephropathy in mice," said the study's seni...Microbes in basalt thrive on mixed diet of toxic waste
...tally benignremediation techniques for cleaning up mixed waste sites." The Idaho site is polluted with mixtures of hexavalent chromium andother inorganic ions, radionuclides, petroleum hydrocarbons, and volatileorganic compounds. Hexavalent chromium (Cr6+) is carcinogenic, mutagenic, andhighly toxi...Primate genus sheds light on great ape and human origins, as reported in Science
...cus to thegreat ape and human clade was that this mixed sample was giving off mixedsignals. Different things were thrown into a common pot, muddling up the realstory," said Kelley. " Kenyapithecus ' exact relationship to the origin ofthese later apes is still somewhat of a mystery at this point, but we th...Duke researchers discover protein that can alert immune system to fight cancer
...ey injected mice with dendriticcells that had been mixed with calreticulin or GRP94 purified from melanoma(skin cancer) or thymoma (thymus tumors), the animals responded by generatinglarge numbers of killer T cells directed at the specific tumor type from whichit had come. "The immune response med...New targets for nerve diseases, nerve regrowth: It's all in the handshake
...found such bonds in earlier cell culture work that mixed complexgangliosides with cells engineered to carry MAG on their surfaces. The present follow-up animal study shows both the existence and theimportance of the ganglioside half of the "molecular handshake." Animalswithout complex gangliosid...New Way To Modify Mammalian Genes: Honolulu Transgenesis
...ith achemical to disrupt their coat. The sperm are mixed with DNA (the researchersused from a jellyfish, but it could, in principle, be any DNA). Sperm and theDNA are then injected into oocytes. Developing embryos are transferred into afoster mother. The introduced DNA contains a gene that directs producti...Urban Restorer Sees Trash Trees, Beetles As Signs Of Hope
...eel mill slag in piles 15 stories high, raw sewage mixed inwith runoff in storm surges, illegal sanitary sewer overflows and a severedecline of native plant species. All this, and more, exists in the midst of ahighly industrialized, thickly settled urban environment. The situation,Tamminga says, requires d...K-State Researchers Study Pest Resistance Management
...o the toxin. In lab studies where the researchers mixed certain forms of the Bt toxin intothe pests' diet, the European corn borers' resistance appears to be inherited asan incompletely dominant trait. Higgins said, though somewhat surprising, thisdoes not mean this borer will exhibit resistance dominance...Bacteria That Gorge On Rotting Waste Can Break Down DDT
...ir technique. The AstraZeneca researchers mixed tainted soil with large amounts of thewaste to make what was effectively a huge compost heap. The soil was tilled andaerated every few weeks, which provided both the nutrients and a cycle ofalternating anaerobic and aerobic conditions for local bacte...... that it can'tbe breathed-so divers breathe oxygen mixed with helium or hydrogen. Susan Kayar and her colleagues at the Naval Medical Research Center inBethesda, Maryland, reasoned that deep dives would be made safer if moredissolved hydrogen could be removed from the divers' blood. They turned to ...New Cell Isolation Method Will Aid In Studying Tumor Development
...to be isolated from specific microscopicregions of mixed cell populations. Previously the use of LCM required biopsiedmaterial to be chemically fixed by formalin and embedded in paraffin or frozen.But the use of fixed and embedded samples to obtain high-quality material formolecular analysis was unsatisfac...All Mixed Up: How Do Hybrids Fit Into The Picture?
... a symbol of complexity. For several decades these mixed species havechallenged ecologists who study their role in ecological communities.Ecologists are still asking themselves the question: Are plant and animalhybrids viable contributors to ecosystems or just evolutionary blunders? TheSpecial Feature in ...UF Researchers Show Common Compound Can Reduce Air Pollution
... Because the reducing and exhaust gases must be mixed in preciseproportions at specific temperatures, the success of the technique requiresemissions to be relatively constant. While this occurs with large emissionsources such as coal- or natural gas-burning power plants, smaller sourcessuch as boilers a...Scientists Discover Key Cog In Receptor That Governs Ripening
...at partsof proteins are recruited in evolution and mixed and matched" to suit new needs. Other members of Bleecker's team include Fernando I. Rodriguez, Jeffrey J. Esch,Anne E. Hall, Brad M. Binder, all of UW-Madison; and G. Eric Schaller, now atthe University of New Hampshire....NSF-Supported New Scientists And Engineers Receive Presidential Award
...quantitative model for phase changes of internally mixed inorganicatmospheric aerosol particles, and infusing discovery through courses andundergraduate research. Mathematics and Physical Sciences Mario Affatigato, Coe College. For novel approaches to the characterization ofthe properties of glass, and ...Ecological Farming May Cause More Heavy Metals In The Soil
...Quality Programme. The scientists also found that mixed farming, combining arable withdairy farming, leads to less heavy metal contamination than farmingbased exclusively on one or the other of these. The team calculatedcontamination levels by examining the difference between the inputand output of heavy ......s CD4-positive cells lacking the CCR5 receptorwere mixed with CD4-negative cells expressing CCR5. Then, af...CD4-positivecells. When the CCR5-bearing cell was mixed with the soluble CD4 (sCD4) protein, theresearchers found clear evidence of infection. "A functional...UF Researcher: New Techniques Help Reconstruct Ancient Diets
..., they were a combination of browsers, grazers and mixed feeders. "This is the first time we've been able to use other techniques to challenge this assertion that the height of a tooth is uniquely indicative of diet," he said. MacFadden believes the reason all these particular species had elongated...