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Tag: "circle" at biology news

Programmable cells: Engineer turns bacteria into living computers

... dish, they formed a bull's-eye pattern -- a green circle inside a red one -- surrounding the sender cells. In addition to demonstrating that the genetic programming techniques work, this sensing system could be useful for the detection of chemicals or organisms in laboratory tests. "The bull's-eye could t...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...n technique uses a low-power laser to melt a small circle of film into the tissue. When the film is lifted, the cell body - including its RNA - comes with it, as if removed by a hole punch. After collecting, purifying, and amplifying the RNA from 3,500 cells for each bird, the researchers used a microarray...

Brain May Be Less Plastic Than Hoped

... eyes held open, the team focused various grid and circle patterns on the animal's retina, centered on the fovea—a small depression in the retina where vision is most acute—and covering the blind spot. They made baseline measurements of the cortical quiet zone two to three hours after the laser surgery and ...

Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory

...ue at the moment. We would then have completed the circle of making HESCs from eggs that came from HESCs ?what came first the chicken or the egg?!" ...

Telling axons where to go - and grow

... targets LIMK1 for degradation finally closes this circle of regulation, providing the link between actin dynamics, axonal growth and Rnf6. Importantly, the authors are able to show that changes in axon outgrowth induced by changes in levels of Rnf6 can be restored by compensatory changes in LIMK1 expressi...

UW scientists unravel critical genetic puzzle for flu virus replication

...mbrane of the virus. They are always arranged in a circle of seven surrounding another segment for a total o... observed as a cross section, always displayed the circle of seven RNA fragments surrounding another segment pattern. "No one has identified this before, per...

Sea coral's trick helps scientists tag proteins

...ticipate that Dendra will broaden considerably the circle of PAFP users," he said. ...

Uncovering sex-change secrets of black sea bass

...nto a big blue plastic tub. Inside, black sea bass circle slowly in the dim light. The converted barn is now an aquaculture research facility for the College of Life Sciences and Agriculture, and home to Berlinsky's latest research. Black sea bass feature prominently on many menus, but wild populations of ...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...orks because of the amazing trafficking where they circle around and look for the presence of anything that might tickle their antigen receptor," von Andrian said. If the T cells don't recognize the antigen, they hop back in the blood stream and head for the next lymph node. T cells and B cells can live fo...

Shrinking ponds signal warmer, dryer Alaska

...project, said Riordan, was "having the patience to circle 10,000 ponds for each time period." The main study area was the subarctic boreal region of Interior Alaska, which spans more than 5 million square kilometers bounded on the north by the Brooks Range and on the south by the Alaska Range. To contras...

Train your brain to hear your friends at a party

...ound is played from one of 12 speakers placed in a circle around the ferret and their response is monitored to see if they can detect which speaker the sound is coming from. Ferrets with normal hearing are very good at this and have excellent spatial hearing. The team then fitted each of the ferrets wit...

Ring-around-the-cell

...y join hands and form a tight circle. From afar, a circle of dancers looks like a blur, but now we have managed to make out the individual dancers." Addadi points out that, from above, isolated podosomes look like a tent with rope-like lines radiating from a central pole. "In effect," she says, "the podo...

Bacterial response to oxidation studied as toxin barometer

...hen she began working with Love, has now come full circle from a biology student working on a civil engineering research project to an engineering student working on a biology project. She will deliver the paper, “Predicting the public health impact of oxidative toxins using a bacterial glutathione-gated po...

Small, self-controlled planes combine plant pathology and engineering

...n agricultural field, and the autonomous plane can circle around the waypoint at a set altitude, with about a meter variation up and down. Second, the autonomous technology enables us to have coordinated flight with multiple aircraft. In other words, we can have two aircraft sampling pathogens at the same t...

Breakthrough developments in rheumatoid arthritis reported

... condition. Dr. Gregersen has finally closed the circle between key genes identified in his laboratory at the Robert S. Boas Center for Genomics and Human Genetics at The Feinstein Institute for Medical Research in Manhasset, NY and more than a 1,000 patients with rheumatoid arthritis. The genes will help...

One species, many genomes

... distinguish the genomes of strains from the polar circle or the subtropics, from America, Africa or Asia has been investigated for the first time by research teams from Tübingen, Germany, and California led by Detlef Weigel from the Max Planck Institute for Developmental Biology. The results were surprisi...

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