Tag: "fingers" at biology news
Biomedical engineers at case develop first sliver-sized sensor to monitor glucose levels
...reeing them from having to take samples from their fingers
several times a day to monitor blood sugar levels," Gratzl said. "The monitor could also help doctors with close monitoring of electrolytes, metabolites and other vital biochemicals in the body, primarily those of critically ill patients." Gratzl an...
Academics find that the finger of destiny points their way
...d remains the same throughout life. The length of fingers
is genetically linked to the sex hormones, and a p...ce like mathematics and physics tend to have index fingers
as long as their ring fingers, a marker for unusually high oestrogen levels for males. It also foun...
New fossil may be closest yet to ancestor of all great apes
...key-like features, such as a sloped face and short fingers
and toes. Moy-Sol and his colleagues think this is...ave evolved together, but Pierolapithecus ' short fingers
indicate that it didn't do a lot of hanging. Hanging-related traits may have evolved several times, ...
Marsh-dwelling mole gives new meaning to the term 'fast food'
...sitive area of an ordinary mole nose. The flexible fingers
also allow the star-nose to tap objects in its environment at a faster rate. These advantages mean that the star-nosed mole can find 14 times as many small prey animals in a given period of search time than its close cousin, the eastern mole, the res...
Predicting the future: Mirror neurons reflect the intentions of others
...he rim (called whole-hand prehension), or with the fingers
on the handle (precision grip). The "intention" clip puts it all together, providing the context needed to understand the intent of the action. In the first context scene, the mug is grasped in the context of a well-laid spread, signaling intent to d...
Determining the fate of cells in the human body
...ssociated with limb abnormalities including webbed fingers
and other developmental defects. In the study, Dr. Firulli and colleagues studied how two proteins, Twist1 and Hand2, which are antagonists, couple to determine the number of digits on a hand, paw or wing, and whether these digits are webbed or not. ...
JCI table of contents April 1, 2005
...s of the hands that are characterized by shortened fingers
and abnormal joint formation. In a paper appearing in the April 1 issue of The Journal of Clinical Investigation, Stefan Mundlos and colleagues from the Max Planck Institute for Molecular Genetics describe the analysis of a mouse model with limb mut...
Scientists take aim at virulent bacteria by decoding machinery of key control enzyme
... glides smoothly down the entire DNA molecule like fingers
sliding down a guitar neck searching for the right chord, examining each base pair as it goes. Each time it finds the sequence GATC it stops and methylates the A nucleotide. Dam must move quickly, because if the bacteria reproduce with the wrong me...
When it comes to sensation, our brain seems tuned to the unexpected
...eft hand. A computer-controlled device between the fingers
could delay or advance the transmission of the tap...ng a time window centered on the time at which the fingers
would normally make contact. This phenomenon, whereby the brain seems to anticipate when a self-deri...
UT Southwestern researchers discover master switch in cell death
... for example, when it removes the webbing from the fingers
of an embryo or shapes a developing brain. But the darker side of this complex process manifests itself in cancers when cells don't die when they're supposed to. The key to the researchers' finding was the interaction between the Mule enzyme and a m...
Motoring proteins and genetic disease
...hs, includes progressive blindness, extra or fused fingers
and toes, kidney disease and learning difficulties, among other problems. Products of genes linked to the syndrome coordinate mobile, cargo-carrying motor proteins within the cilia, tiny hairs found on the surface of cells, according to graduate stud...
A water tale for all seasons: When it comes to hydration and exercise, the system works
...d outdoorsmen are more affected by their hands and fingers
getting stiff. We're going to look at how physical performance such as manual dexterity can better be maintained in the cold." Some dehydration shows no performance effect in cold, but does as temperature rises It's well recognized that athletes pe...
Scientists develop 'clever' artificial hand
... sets of motors and gears so that each of the five fingers
can move independently. This enables it to make mo...n opening a lock with a key, and you can wrap your fingers
around an object in what we call the power grip like the one you use when you hold a hammer or a mi...
Latest study: Scientists say no evidence exists that therapod dinosaurs evolved into birds
... 3 and 4, the equivalent of index, middle and ring fingers
of humans. To change so radically during evolution would be highly unlikely. "If birds descended from dinosaurs, we would expect the same 1, 2 and 3 pattern," he said. Current dinosaurian dogma requires that all the intricate adaptations of birds' wi...
Creeping crinoids! Sea lilies crawl to escape predators, new video shows
...n somehow moving to another location and using the fingers
to reattach. In the late 1980s the researchers observed that sea lilies could, in fact, move from place to place---Baumiller had put some in a flow tank and noticed that they changed position from day to day, and Messing had noticed the same thing d...
Marathon of nano-sprinters
... that connect our spinal cord with the tips of our fingers
and toes. Within such an axon, microtubules provide the tracks along which molecular motors transport their cargo, such as vesicles filled with neurotransmitters. During the last decade, our knowledge about molecular motors has increased rapidly. Th...
New study to find cause of former President's hand disease
...ondition that can result in sufferers losing their fingers
is to be investigated by scientists in one of the most detailed studies into the genetic causes of the disease ever carried out. Dupuytren's disease or contracture, a condition that affects the hands and sometimes the feet and penis, occurs gradually...
Bionic fiction becomes science fact
... by the work of six tiny motors. Each of the five fingers
is articulated and has one motor dedicated to its ... the body are relative to other parts, whether our fingers
are open or closed, for example. The other relates to taste, touch, sound, hearing and sight that te...
Retinol for combating leukemia cells
...re developed in the womb of a mother, at first the fingers
are united by a membrane. This membrane has to disappear and, so, the cells thereof have to die off so that the hands may develop correctly. This cellular death is programmed in the embryo genes and has a concrete function. This is apoptosis. All cel...
Using 'minutiae' to match fingerprints can be accurate
...vidual were being matched. Systems using two index fingers
were accurate more than 98 percent of the time. Fo...a templates. However, systems using images and two fingers
had the highest rates of accuracy, 99.8 percent. Results of the test are available at http://finger...