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Tag: "easily" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

... This could explain why sound sleep doesnt come easily to kids whose signaling systems may not be properly calibrated, OConnor said. However, more research is needed to monitor this signaling pathway more closely, watching for biological hints as to why sleep and behavioral disturbances so often crop up ...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

... of the encoded protein, whose function can now be easily studied. In research published in the May 22 issue of the journal Biochemistry, the researchers say that with the addition of the recreated gene, PfMDR1 and its protein, they have all the biomolecular tools necessary to molecularly understand how th...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...ies dispersed simply by swimming because frogs dry easily and are not very tolerant of salt water. In addition to the study's discoveries about Caribbean and Central American frogs, the research also revealed and defined an unusually large and unpredicted group of species in South America. "The South Am...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...ndles, which line up chromosomes for division, are easily broken during freezing so chromosomes can’t properly divide. Typically the resulting embryo dies. Plus, fertilization is unlikely since freezing often hardens the egg’s outer shell that sperm must penetrate. “That is why we have tried to develop t...

Microbes at work cleaning up the environment

... metal nanoparticles aggregate, they don’t move as easily and are less soluble. Using secondary ion mass spectrometry, transmission electron microscopy and infra-red spectroscopy, the scientists were able to study whether protein contributes to the formation of densely aggregated nanoparticulate zinc sul...

Research finds that circadian rhythms dominate all life functions

... function as a group. Lack of orchestration can be easily confused with the lack of oscillation. This makes the rhythm much harder to detect. "It's like a conductor walking away from an orchestra during a performance; each musician continues to play, gradually going out of key with the others," said Ptits...

Mutating the entire genome

... numerous spots on the mouse genome. So scientists easily can breed multiple generations of mice with loxP s...the bonus of also being able to disable genes more easily and inexpensively than existing knockout techniques, Wu says. In their study, Wu and Capecchi de...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...ially rich source of fresh adult stem cells and is easily available from donors undergoing Caesarian section deliveries in UTMB hospitals. "However," he added, "embryonic stem cell research was absolutely necessary to teach us how to do this." Embryonic stem cells have been engineered to produce cardi...

'Virtual Patient' to simulate real-time organ motions for radiation therapy

...aid. The fourth dimension of the VIP-Man is not easily achieved, according to Xu. Currently Xu and De are focusing their energy on respiratory function. "Using advanced computational tools, it is possible to simulate lung movement; however, not in real time," De said. "For effective radiation therapy, ph...

Amphibians in losing race with environmental change

...s diseases of some amphibians, and it spreads more easily in closely connected communities. "Although relatively rapid evolution may occur within some amphibian populations when a novel threat arises, other threats may be too intense and too new for amphibians to cope with them," the researchers wrote in...

Students invent protective pouch to enhance cell therapy

...model blood vessels and that the microcapsules can easily be injected and withdrawn. Link said he and his team members appreciated the chance to solve a real-world engineering challenge while drawing on the expertise of prominent researchers such as Arepally and Bulte. "I don’t think I could have found a...

Invasion of the island bats

...d as the exceptions that prove the rule, anomalies easily explained by the unique circumstances of each case. Analysis of bat DNA published in Journal of Biogeography reveal that several neotropical species descended from ancestors that evolved in the West Indies, and this pattern is consistent with fos...

Researchers attach genes to minichromosomes in maize

...onto one minichromosome and manipulate those genes easily because they are all in one place, Birchler said. Genetic modification with traditional methods is more complicated because scientists have little control over where the genes are located in the chromosomes and cannot stack multiple genes on a separa...

DNA-damage test could aid drug development

... precursors generate red blood cells containing an easily detected "micronucleus" consisting of fragments of nuclear DNA. Unlike the current procedure, which injects the compound into a live mouse, the new assay is a cell-culture system that could allow hundreds or thousands of tests to be performed from th...

Asexual worm quickly adapts to soil contamination

...ptive potential and that they adapt to stress less easily than sexual species. At present these asexual species are used as test organisms in ecotoxicological risk evaluations. The question now arises as to whether they are suitable for this purpose. The results of this study are important for the devel...

Spreading viruses as we breathe

...wn that one person infected with the disease could easily spread the virus by simply breathing. "Understanding the way viruses spread from human expiration means we can look to better design spaces, ventilation systems and filters," she said. Professor Morawska said the next stage of the research wou...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

... samples outside the laboratory. The sensor can be easily prepared by means of a process that can be extended on an industrial scale to allow the manufacture of large quantities at a very low cost, and may even be made for personal, disposable use . The chemical mechanism to detect contaminants in a sam...

Study of protein folds offers insight into metabolic evolution

...oteins at the level of their component structures: easily recognizable folds in the proteins that have known enzymatic activities. These protein domains catalyze a range of functions, breaking down or combining metabolites, small molecules that include the building blocks of all life. Their findings reli...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

...ain 24 hours later. Normal mice completed the runs easily on both days, while untreated MDX rodents were exhausted halfway through each run. The MDX mice with increased PGC-1alpha activity performed almost as well as normal mice on the first day; their performances decreased on the second day, but they stil...

Rapid response was crucial to containing the 1918 flu pandemic

... were exposed to an influenza virus strain that is easily transmitted from person to person. Developing such a vaccine in advance, however, is difficult because an influenza virus mutates as it replicates, and over time these mutations can alter the virus enough that older vaccines are no longer effective. ...

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