Tag: "orientation" at biology news

Where broken DNA is repaired

..., where activities like the necessary clamping and orientation of the broken strands take place. "Our results raise a number of interesting possibilities," says Costes. "If less-dense regions of the nucleus are more susceptible to radiation damage, we may be able to use this knowledge to make tumor cells eas...

Mother-of-pearl -- Classic beauty and remarkable strength

... crystals with identical composition but a crystal orientation different than neighboring columns. Since orientation affects how crystals emit electrons, "some of the columns of bricks appear white and others appear b...

Brain's inertial navigation system pinpointed

...of input to the brain about the bodys movement and orientation in space. However, the vestibular sensors in the inner ear yield information about head position only. Also, the vestibular systems detection of head acceleration cannot distinguish between the effect of movement and that of gravitational force. Do...

Surprising origin of cell's internal highways

...r the leading edge, of motile cells. Since such an orientation is needed for directional migration, Kaverina hypothesizes that this subset of microtubules may influence cell motility by facilitating the transport of proteins needed for movement to the cell front. "This new microtubule subset that we discovere...

Sexual orientation affects how we navigate and recall lost objects, but age just targets gender

...t the University of Warwick have found that sexual orientation has a real effect on how we perform mental tasks s...old age does not discriminate on grounds of sexual orientation and withers all mens minds alike just ahead of womens. The University of Warwick researchers worke...

Left-right wiring determined by neural communication in the embryonic worm

...o where language is generated in the brain, to the orientation of our internal organs, humans are a glut of asymmetries. Worms aren't so different: The roundworm Caenorhabditis elegans has nerves on its left and right sides that perform different functions. Like handedness, the determination of which nerves deve...

The Institute of Ecosystem Studies recognized by the Wildlife Society

...firearms proficiency test and attending a pre-hunt orientation meeting, participants must be sensitive to the fact that the hunt takes place on an active research campus with numerous field sites." To date, the IES Deer Management Program has revealed useful information about maximizing deer harvest and hunte...

Scientists offer new view of photosynthesis

...phyll molecules at a highly optimized distance and orientation so that electrons can hop from one chlorophyll to another. With the chlorophylls in just the right position, any systematic protein movement was thought to be merely a side product of electrons shuttling between chlorophyll molecules. Woodbury an...

Motile Cilia go with the flow

... to determine the polarity of cilia by scoring the orientation of hundreds of basal feet in Xenopus larvae, whose skin is covered with multi-ciliated cells. Analyzing skin explants taken during early embryonic development, Mitchell discovered that, early on, when ciliated cells begin to differentiate in the sk...

New imaging approach promises insights into multiple sclerosis

...w findings show that images can reveal whether the orientation of the chemical bonds in these lipid molecules is "scrambled," when the myelin sheath is unhealthy and degraded from disease, Cheng said. "We can see the myelin sheath with CARS, and that's great, but it's not enough," Cheng said. "We also want to ...

Nation's first veterinary student receives prestigious NIH Fogarty Fellowship

...th. Garber will spend three weeks at NIH for an orientation session before going to Vellore in early August for 10 months. The Christian Medical College, internationally recognized for its high quality of research and one of the top medical schools in the country, will host Garber during his fellowship in Ind...

Volcanic plumbing dictates development of deep-sea hydrothermal vents

...Pacific Rise, causing the plate boundary to change orientation with time. Secondly, they argue that deep-sea hydrothermal vents frequently form above volcanoes where upwelling of the mantle and spreading of the plates are aligned. Surprisingly, Toomey added, the amount of magma produced by volcanoes under bot...

38 minority scientists receive travel fellowships to Experimental Biology 2007 in D.C.

...and the fellows meet other minority students at an orientation and reception for current and past travel fellows. APS also invites fellows to career workshops, sessions on special skills development, and other special sessions during the conference. Past fellows have praised the program, saying they received a...

Homing pigeons get their bearings from their beaks

...x three-dimensional pattern with different spatial orientation designed to analyze the three components of the magnetic field vector separately. They react to the Earths external magnetic field in a very sensitive and specific manner, thus acting as a three-axis magnetometer. The study suggests that the birds...

An architectural plan of the cell

...the networks created through this crosslinking the orientation of microtubules is crucial. The filaments are polar structures, their two ends grow and shrink at different rates. The study created a precise map indicating the location of all growing and shrinking microtubule ends in the cell. The images also shed...

Researchers at IRB Barcelona discover a new mechanism that regulates stem cell division

...are both in position, coincides perfectly with the orientation in which the stem cell must divide to guarantee the asymmetry of daughter cells. The intracellular asymmetry of two functionally distinct centrosomes is a decisive factor in the regulation of asymmetric stem cell division and prevents the proliferati...

Computer-designed molecule to clean up fluorocarbons?

...olecule to hold those components in just the right orientation to break the C-F bond in methyl fluoride, a simple fluorocarbon. Researchers at the University of Texas now are synthesizing the new molecule to test its effectiveness. If it matches theoretical predictions, it will be the first example of a simple...

Man's best friend lends insight into human evolution

...panzees utilize social cues like eye gaze and face orientation to monitor others' behavior or infer motives of other subordinate or dominant individuals, or even deceive them, when competing for food. But it turns out that chimps are not very good at drawing inferences about others' mental states in cooperative ...

BioMed Central announces winners of first open access research awards

...ield of biology for his article, "Polarization and orientation of retinal ganglion cells in vivo." The research, which used 4-dimensional microscopy to observe the behavior of retinal ganglion cells when differentiating in wild-type or mutant embryos, first appeared in one of BioMed Central's journals, Neural De...

Scientists identify molecular cause for one form of deafness

...quid crystalline state, the bundles maintain their orientation order that is, they point roughly along the same direction but lose their positional order. These nematic liquid crystals are commonly used in watch displays and laptop displays. Wong and his colleagues also found that a mixture of mutant espin and...

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(Date:5/24/2013)... have focused among other factors on drugs that ... the accumulation of A-beta that causes the known plaques in ... of A-beta is APP. Alessia Soldano and Bassem Hassan (VIB/KU ... the fruit-fly version of APP in the brain ... "We have discovered that APPL ensures that brain cells form ...
(Date:5/23/2013)... 13,000 ships per year, carrying more than 284 million tons ... $1.8 billion dollars in toll fees for the Panama Canal ... million gallons of water are used from Gatun Lake, which ... people living in the isthmus. , However, the advent ... percent of the ships at sea, has demanded change. The ...
(Date:5/23/2013)... cancer patients unnecessarily undergo surgery or harsh treatments ... slow-growing and aggressive forms of the disease. Researchers ... Medical Institutes are developing technology that allows patients ... relatively mild treatments or take drastic measures. , ... an associate professor of biomedical engineering at Case ...
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