News tagged with nucleus
Researchers explain process by which cells 'hide' potentially dangerous DNA segments
Apr 09, 2009 |
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The DNA in the 23 pairs of chromosomes in each of the billions of cells of the human body is so tightly packed that it would measure six feet in length if stretched end to end. A genome of this size can squeeze into a cell's ...
The egg makes sure that sperm don't get too old
Mar 25, 2009 |
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In contrast to women, men are fertile throughout life, but research at the Sahlgrenska Academy, University of Gothenburg, Sweden, has now shown that a fertilising sperm can get help from the egg to rejuvenate. The result ...
Brain activity predicts people's choices
Medicine & Health / Neuroscience
Mar 24, 2009 |
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The activity in one brain structure can predict people's preferences, according to new research in the March 25 issue of The Journal of Neuroscience. The study shows that even when people rate options similarly, they will c ...
Study improves insights into Parkinson's disease and possible treatments
Mar 19, 2009 |
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About the only thing doctors have understood about deep-brain stimulation, which is widely used to treat Parkinson's disease symptoms, is that somehow it works for many patients. In a new study that will be published March ...
The sweet spot? Doctors test targets for Parkinson surgery
Medicine & Health / Neuroscience
Mar 13, 2009 |
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Doctors may be able to tailor a specialized form of brain surgery to more closely match the needs of Parkinson patients, according to results from the first large-scale effort to compare the two current target areas of deep ...
Aching Back? Cholesterol Medication Might Help
Feb 23, 2009 |
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Back pain, a hallmark of degenerative disc disease, sends millions of people to their doctor. In fact, more than 80 percent of patients who undergo spine surgery do so because of disc degeneration. And part of the answer ...
For the First Time, Scientists Measure the Size of a One-Neutron Halo with Lasers
Feb 20, 2009 |
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Atomic nuclei are normally compact structures defined by a sharp border. About twenty-five years ago, it was discovered at the University of California in Berkeley that there are exceptions to this picture: ...
Paper sheds new 'light' on fascinating rhythms of the circadian clock
Biology /
Feb 16, 2009 |
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(PhysOrg.com) -- Scientists have long known that interrupting the 24-hour circadian rhythm plays havoc with the lives and health of medical, military and airline personnel, factory employees and travelers.
Rapidly evolving gene contributes to origin of species
Biology /
Feb 05, 2009 |
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A gene that helped one species split into two species shows evidence of adapting much faster than other genes in the genome, raising questions about what is driving its rapid evolution.
Cancer-causing gene discovery suggests new therapies
Jan 24, 2009 |
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Scientists have discovered a novel way by which a much-studied cancer-promoting gene accelerates the disease. The finding suggests a new strategy to halt cancer's progress.
Researchers heat up gold to surprising effect: It gets harder not softer
Jan 22, 2009 |
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Common sense tells us that when you heat something up it gets softer, but a team of researchers, led by University of Toronto chemistry and physics professor R.J. Dwayne Miller, has demonstrated the exact ...
Mutant host cell protein sequesters critical HIV-1 element
Medicine & Health / HIV & AIDS
Jan 15, 2009 |
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Scientists have identified a new way to inhibit a molecule that is critical for HIV pathogenesis. The research, published by Cell Press in the January 16th issue of the journal Molecular Cell, presents a target for develo ...
Structural study backs new model for the nuclear pore complex
Biology /
Dec 24, 2008 |
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(PhysOrg.com) -- In higher organisms, the genetic material is confined and protected in the cell nucleus. In order for a healthy cell to function, the DNA must send manufacturing orders through the double ...
New cause of heart arrhythmia found
Dec 11, 2008 |
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A new study shows that atrial fibrillation--the most common form of sustained heart arrhythmia--can be caused in an unexpected way. Researchers report in the December 12th issue of the journal Cell, a Cell Press publication, the fi ...
Memoirs of a qubit: Hybrid memory solves key problem for quantum computing
Oct 22, 2008 |
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An international team of scientists has performed the ultimate miniaturisation of computer memory: storing information inside the nucleus of an atom. This breakthrough is a key step in bringing to life a quantum ...
