smaller 2 8

Tag: "smaller" at biology news

UCR researchers design chip that can improve citrus varieties

...s wafer is encased in a plastic container somewhat smaller than the size of a credit card. To use the chip, researchers purify total RNA (which reflects the genes expressed in the tissue) from plant tissue, make a copy of these molecules with a chemical tag added, and then "wash" the chip with the RNA sam...

Nanopore method could revolutionize genome sequencing

...t passes through a pore more than a thousand times smaller than the diameter of a human hair. Because sequen...Sanger method it is necessary to chop the DNA into smaller pieces, copy the DNA and use multiple sequencing machines, which introduces additional sources of er...

New 'implanted contacts' designed to fix nearsightedness

...cular lenses, the collamer lens is inserted with a smaller incision. The lens is like a fixed contact, but it can be removed if need be. The procedure, Dr. Bowman said, normally takes about 10 to 15 minutes, and the patient sees the improvement soon after. ...

Proteins stop blood-vessel and tumor growth in mice

...bulins were approximately 24 percent to 45 percent smaller than the control tumors. "We are thrilled that the fibulins continue to show promise as we move into animal models," said Dr. Schiemann. "We also found evidence that the fibulins work through more than one biological pathway, which suggests a very r...

Unraveling the viral mechanism

...acteriophage appears structurally similar although smaller than the herpes simplex virus, which causes cold sores and related infections. That means it should be possible to use these tools to understand better how this and similar viruses infect nerve cells and, some day, interrupt that disease process. Th...

Liquid crystals show promise in controlling embryonic stem cells

... stem cells as they grow. "Stem cells tend to be smaller and have a slightly more compact shape than the differentiated cells," says chemical and biological engineer Sean Palecek. "Differentiated cells appear to be much more spread and they appear to exert different levels of force on the matrix in which t...

Not just the birds

.... Most studies on land-based ecosystems have been smaller in scale. These studies have not revealed the large community-wide indirect effects that are often found in aquatic trophic cascades, or have only shown the effects of predators from the top down to lower levels. This study shows an indirect pathway...

Dogs keep dying: Many owners unaware of toxic dog food

...ng treated. Dogs that have survived had consumed a smaller amount of the food than dogs that died, Center said. "Some dogs were stealing food from the kitchen counter. Others just stopped eating the food and begged for treats. Unfortunately, some owners used gravy and other mixers to entice their dogs to con...

Males with elevated levels of testosterone lead shorter lives but have more success siring offspring

...roduced more offspring, but they were smaller, and smaller offspring had lower postfledging survival. Older, more experienced females preferred to mate with older males and realized higher reproductive success when they did so. While young males treated with testosterone increased their ability to attract ol...

New test to detect rare proteins in blood

... of rare markers and not-so-rare targets from much smaller sample volumes, as well as aid in monitoring marker levels at much earlier stages of disease. "The importance of FACTT is that we can still get an accurate description of the number of molecules that cause disease even when other assays cannot," sa...

Strawberries by design

...at has two sets of chromosomes and a significantly smaller genome, the researchers have found a particular type of alpine strawberry that is very amenable to transformation." He added: "The transformation rate achieved is the result of innovation and great attention to experimental detail." Due to the smal...

Bioactive cement scaffold may improve bone grafts

...ving the material's mechanical properties by using smaller encapsulating beads that biodegrade at a predictable rate. NIST and the American Dental Association Foundation have conducted cooperative research on dental and medical materials since 1928. ADAF researchers focus on development of new dental mater...

Potential heart benefit found in stem cells

...he six-month follow up. The team noted a trend to smaller stress-induced defects, and found that the number of bone-marrow stem cells injected was positively related to the follow-up EF levels, and negatively correlated to the stress-induced and resting perfusion defects. "In at-risk patients, combined t...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

.... Its arms were longer and more delicate, its head smaller and its agility superior to the car-crushing, rest...an accurate model for scientists. The bones of the smaller specimen had only six closely spaced rings and no widely spaced ones, indicating that it was a nearl...

Penguins waddle but they don't fall down, UH researchers say

...y walk and run. His research can be used to build smaller computers for such robots that will become increasingly more life-like. "There is not much research on this issue, so we're hopeful about the results," Kurz said. To facilitate his study, Kurz has created a special platform that contains a press...

Scientists develop a way to make the deadliest toxin known even more toxic

...t as cellular catalysts, breaking up proteins into smaller elements such as amino acids and reducing the amount of energy needed for the activation. The study was released in an advanced online version by the Journal of the American Chemical Society. Kim Janda, currently the Ely R. Callaway Jr. professor...

Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease

...ents. When Dicer cleaves large strands of RNA into smaller fragments, it initiates the process of RNA interfe...or in Giardia? We don't know. The Giardia Dicer is smaller than the Dicer found in other eukaryotes and we don't know why that is. What do the bells and whistl...

Molecule does more than slice and dice RNA

...ents. When Dicer cleaves large strands of RNA into smaller fragments, it initiates the process of RNA interfe...or in Giardia? We don't know. The Giardia Dicer is smaller than the Dicer found in other eukaryotes and we don't know why that is. What do the bells and whistl...

Less is more, gene study shows

...cle protein. Perhaps the loss of that gene gave us smaller jaw muscles, making room in our skulls for bigger brains. That's just speculation, and until now there was no concrete evidence for the "less is more hypothesis" that losing certain genes offered tangible benefits, Zhang said. "So we wanted to know ...

Sea coral's trick helps scientists tag proteins

...o the Lukyanovs and colleagues set out to create a smaller and more versatile version of their fluorescent protein. They systematically mutated the DNA sequence that encodes the fluorescent protein, then expressed the resulting mutant proteins in bacteria until they found one that could be irreversibly conve...

1 2 3 4 5 6 7 8 9 10