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Beautiful plumage: Feather color and sex start the species revolution

... and select potential mates. A mutation of a single DNA base can lead to a striking colour change, as ... the genetic basis is not always as clear as this single mutation. Dr Kilner highlighted this intriguing paper because it shows how a single gene can cause colour change in birds, affecting ...

Leicester research paves way for first use in Europe of an insect to fight invasive plant

... Given the fact that our Japanese knotweed is a single clone I feel we have excellent prospects for the ... Japanese Knotweed female, but all belonged to a single clone, produced by cuttings from the original ... Japanese Knotweed had been demonstrated to be a single clone and was thus lacking any population ...

Jet-propelled imaging for an ultrafast light source

... can be diffracted from a microcrystal or even a single protein or virus in solution. The pulse is so ... droplets across the tightly focused x-ray beam in single file, each droplet so small it contains only a single protein or virus. He and colleagues Bruce Doak ...

A matter of density, not quantity

... even able to trigger quorum-sensing processes in single cells when these were confined in extremely small ... coordinate processes that would be inefficient in single cells, such as the formation of biofilms. Quorum ... shown that quorum sensing is also activated by a single cell if the cell finds itself in an extremely ...

New test can detect both genetic and chromosomal abnormalities in embryos

... For the first time, the inheritance of both single gene defects and chromosomal abnormalities can be detected simultaneously at the single cell level. Unlike other methods, this is ... "The range of applications is broad and includes single gene defects, abnormal chromosome number, ...

Single thawed embryo transfer after PGD does not affect pregnancy rates

... provide reassurance that a strategy of elective single embryo transfer in good prognosis patients ... now, fertility specialists have not applied a single embryo transfer policy to PGD for inherited ... to July 2008 Dr Khalaf and his colleagues offered single embryo transfer together with freezing of surplus ...

Researchers observe single protein dimers wavering between two symmetrically opposed structures

... complex nature of proteins, contrasting with a single preferred folded structure that is determined by ... extremely large number of structures even with a single chain of amino acids, end up folding themselves ... mutations in the protein sequence would allow a single sequence to populate both structures, which they ...

Aluminum-oxide nanopore beats other materials for DNA analysis

... prove capable of performing DNA analysis with a single molecule, offering tremendous possibilities for ... pairs. Bashir's team verified the detection of single molecules, with a signal-to-noise performance ... technology. "More work must be done to achieve single base resolution, however," Bashir said. "Our next ...

Temporary infidelity may contribute to the stability of ancient relationships

... the paradox that even though the ants transfer a single fungal strain from generation to generation, ... Ants in the genus Acromyrmex cultivate a single fungal species in their nests: Leucoagaricus ... Mature ant colonies contain one fungal clone--a single genotype, which uses several strategies to make ...

Using high-precision laser tweezers to juggle cells

... Sweden, have developed a new method to study single cells while exposing them to controlled ... system, allows the researchers to study how single cells react to stress induced by a constantly ... individual variation, for example how quickly a single cell responds. PhD Emma Eriksson and her ...

Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite

... v-GO(R) Access Accelerator Suite for enterprise single sign-on and related authentication and ... that seamlessly integrates with third-party single sign-on (SSO) solutions. This integration of ... in which multiple users need to access a single computer by requiring users to authenticate ...

Diet secrets of 'the Royals'

... Isotopes are different forms or weight of a single element for example, common carbon-12 versus ... The hair grows about an inch per month, so a single hair contained isotopic clues to diet during an ... carbon isotope ratios along the length of a single elephant hair, the researchers could see the ...

New therapeutic strategy could target toxic protein in most patients with Huntington's disease

... of neurons. Laboratory studies suggest that a single small interfering RNA could reduce production of ... he recalled. The key was something called a single nucleotide polymorphism or SNP. A SNP is any place on the genetic code that varies by a single unit. The genetic code is written with four ...

Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite

... v-GO(R) Access Accelerator Suite for enterprise single sign-on and related authentication and ... that seamlessly integrates with third-party single sign-on (SSO) solutions. This integration of ... in which multiple users need to access a single computer by requiring users to authenticate ...

Will Europe at last unite to combat thousands of alien invaders?

... and geographic complexity of Europe makes a single coordinating body a necessity" The authors of ... serious consideration to the establishment of a single body to bring together invasive species related ... For example, the major policy driver of a single EU market for goods and people favours the spread ...

Distinguishing single cells with nothing but light

... optical technique that permits rapid analysis of single human immune cells using only light. ... Raman and angular-scattering microscopy into a single system, which they call IRAM. "Conceptually ... classify and distinguish between two different, single cells. Berger and Smith verified this by looking ...

Using hair to manage HIV/AIDS and predict treatment success

... measure plasma levels of medications, but since a single plasma level represents medication exposure only ... of viral suppression, according to Gandhi. single drug levels can vary day-by-day for a single patient and may reflect improved pill-taking by ...

Scientists discover why teeth form in a single row

... genetic forces determines why mammals develop a single row of teeth, while sharks sport several, ... researchers discovered that turning off a single gene in mice resulted in development of extra ... this pathway to restrict teeth within a single row." ...

New models question old assumptions about how many molecules it takes to control cell division

... Blacksburg, Va. -- A single cell whether a yeast cell or one of your cells ... accepted notions about information processing in single cells: about the numbers of messenger RNA (mRNA) ... the molecular basis of decision making in a single cell. "Information processing is done by a ...

Cells with double vision

... this work was somewhat of a surprise. Could a single cell have two different receptive fields, ... that the receptive field of a nerve cell is a single unit must therefore be re-evaluated. In future, ... to VS-cells. Such spatial separation within a single cell took the scientists by surprise. However, as ...

Single gene lets bacteria jump from host to host

... it lives, scientists have found that gaining a single gene is enough for the microbe to switch host ... up the pinecone fish's menu. But how did a single species of bacteria come to terms with such ... first in other animals before infecting humans. A single gene can be a much easier target for a drug or ...

In India: A search for more effective tuberculosis drugs

... himself because he knows if he can design a single drug that is safe and effective, it might one day ... a cocktail of four drugs, and each inhibits a single enzyme," said Gokhale, a Howard Hughes Medical ... expensive and time consuming. Gokhale said that a single drug that targets multiple pathways could save ...

Sequence matters in droughts and floods

... events have been based largely on responses to a single hydrological condition. Few studies have ... drought and flood by studies that look just at a single drought or a single flood," Dr. Miao said. "We found that plants ...

Single virus used to convert adult cells to embryonic stem cell-like cells

... genes, Carey created iPS cells containing just a single copy of the polycistronic vector instead of ... such as gene targeting, which allows a single transgene to be inserted at defined locations. ... biology at MIT. "Using this one virus creates a single integration in the cells' DNA, which makes things ...

Children's National convenes first childhood obesity symposium

... and advocacy partners region. "There is no single cause for the increase in childhood obesity, but ... at Children's National. "Likewise, there is no single answer to systematically solving the problem. But ... for Genetic Medicine Research , that identifies a single gene which may signal a greater likelihood for ...

Einstein researchers develop technique to count messages made by single genes

... detailed view of DNA being made into RNA in a single cell will help answer questions about how much of ... "The classic textbook cartoon illustration of a single strand of DNA with little mRNA pieces coming off ... that all the individual mRNA molecules within single cells can be counted. Dr. Singer's "single ...

Caltech scientists develop 'barcode chip' for cheap, fast blood tests

... to complete," says Heath. A kit to test for a single diagnostic protein costs about $50. "We wanted ... to results in less than 10 minutes." A single chip can simultaneously test the blood from eight ... capture that whole concentration range through a single test," Heath says. The scientists also used ...

Scripps Research scientists shed light on how DNA is unwound so that its code can be read

... translate what were two-dimensional snapshots of single RSC molecules into a detailed picture of the ... a human body, it has been calculated that a single individual's DNA could stretch to cover the ... form a nucleosome. But there is so much DNA in a single gene that each gene is packed into a necklace of ...

Gaps in adhesion

... tenth of the links. The force required to pull a single polymer from the surface was always the same: 67 ... "We see our polymers as chains of single binding sites linked with very loose springs," ... and his team measure only the force with which a single binding site is anchored to the surface. How ...

Washington University scientists first to sequence genome of cancer patient

... sample had nine of the mutations, and that the single genetic alteration that occurred less frequently ... then looked for genetic differences - points of single base changes in the DNA - in the patient's tumor ... with her normal genome. Of the nearly 2.7 million single nucleotide variants in the patient's tumor ...

Rhode Island Hospital simulation center examines benefits and applications of medical simulation

... and yet sensitive and precise enough to assess a single behavior. No single measure can capture overall individual or team ... outcomes to avoid the pitfalls in relying on 'one single inadequate criterion.'" With this in mind, ...

Salk researchers successfully reprogram keratinocytes attached to a single hair

... the tiny number of keratinocytes attached to a single hair plucked from a human scalp. Their method, ... material, since the process only requires a single human hair. "Having a very efficient and ... amounts of biological samples. "We plucked a single hair from a co-worker's scalp and cultured the ...

What is wild? Odor attraction among different wildtype Drosophila

... A series of behavioral studies showed that a single olfactory stimulus is often not sufficient for ... responses to fruity smells, and especially to single odor components. "These flies, which have only ... to host signals and do not just rely on one single odor that is stimulating their antennae. ...

For insulin sensitive overweight patients, 1 session of exercise improves metabolic health

... sensitivity. The findings also suggest that a single session of exercise "steers" muscle fat towards ... After One Day of Overeating Are Reversed by a single Session of Exercise." They will present their ... as type 2 diabetes. This study shows that even a single bout of exercise helps obese individuals increase ...

Research pushes back history of crop development 10,000 years

... a consequence they thought most crops came from a single location and single domestication event. However recent ... model. The tough rachis mutant is caused by a single recessive allele (one gene on a pair or group of ...

Study reveals how viruses collectively decide the fate of a bacterial cell

... that the cell fate of a bacteria infected by a single virus can be dramatically different than that ... phage, experimental evidence indicates that a single infecting phage leads to host cell death and ... why two viruses would behave differently than a single virus, given that the infecting viruses possess ...

Researchers develop nano-sized 'cargo ships' to target and destroy tumors

... therapeutic and diagnostic functions into a single device that avoids rapid removal by the body's ... found to its surprise in its experiments that a single mother-ship can carry multiple iron oxide ... "This study provides the first example of a single nanomaterial used for simultaneous drug delivery ...

Old growth forests are valuable carbon sinks

... perspective was largely based on findings of a single study from the late 1960s which had become ... a study using 10 years worth of data from a single plantation suggested that forests 150 or more ... said. "But it was just based on observations in a single study of one type of forest, and it simply ...

Bisphenol A linked to metabolic syndrome in human tissue

... are especially powerful because we didn't use a single patient, a single tissue source or a single occurrence," she adds. "We used different fat ...

New research challenges long-held assumptions of flightless bird evolution

... that describes the geographical division of a single species, resulting in two or more very similar ... from one another. Scientists assumed that a single flightless common ancestor of the ratites lived ... from birds across the globe is in turn just a single part of a program called Assembling the Tree of ...
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