News tagged with nucleus

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Scientists observe super-massive black holes using Keck Observatory in Hawaii

Scientists observe super-massive black holes using Keck Observatory in Hawaii

Space & Earth / Astronomy

created Dec 10, 2009 | popularity 5 / 5 (8) | comments 3

An international team of scientists has observed four super-massive black holes at the center of galaxies, which may provide new information on how these central black hole systems operate. Their findings ...


Easily led 'ash-tray': Adolescent smokers prone to drug abuse

Medicine & Health / Health

created Dec 11, 2009 | popularity 5 / 5 (1) | comments 0

It is common knowledge that smoking is a health risk but why do teens become addicted to smoking more easily than adults? In an evaluation for Faculty of 1000 Biology, Neil Grunberg looks into why adolescents are more prone ...


The Energy Sources of Ultraluminous Galaxies

The Energy Sources of Ultraluminous Galaxies

Space & Earth / Astronomy

created Nov 27, 2009 | popularity 4.7 / 5 (20) | comments 3

(PhysOrg.com) -- Ultraluminous infrared galaxies ((ULIRGs) are galaxies whose luminosity exceeds that of a trillion suns; for comparison, the Milky Way galaxy has a typical (and much more modest) luminosity ...





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New structure could produce efficient semiconductor laser sources

New structure could produce efficient semiconductor laser sources

Physics / General Physics

created 13 hours ago | popularity 5 / 5 (2) | comments 1

(PhysOrg.com) -- University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient ...


Galaxy Collision Switches on Black Hole

Galaxy Collision Switches on Black Hole

Space & Earth / Astronomy

created Dec 10, 2009 | popularity 4.5 / 5 (4) | comments 1

(PhysOrg.com) -- This composite image of data from three different telescopes shows an ongoing collision between two galaxies, NGC 6872 and IC 4970.


Introns: A mystery renewed

Introns: A mystery renewed

Biology / Cell & Microbiology

created Dec 10, 2009 | popularity 4.8 / 5 (6) | comments 0

The sequences of nonsense DNA that interrupt genes could be far more important to the evolution of genomes than previously thought, according to a recent Science report by Indiana University Bloomington and ...


Hops compound may prevent prostate cancer

Medicine & Health / Cancer

created Dec 08, 2009 | popularity 4 / 5 (2) | comments 0

The natural compound xanthohumol blocks the effects of the male hormone testosterone, therefore aiding in the prevention of prostate cancer.


Nanomedicine: ending 'hit and miss' design

Nanotechnology / Bio & Medicine

created Dec 08, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- One of the promises of nanomedicine is the design of tiny particles that can home in on diseased cells and get inside them. Nanoparticles can carry drugs into cells and tag cells for MRI and other diagnostic ...


The thalamus, middleman of the brain, becomes a sensory conductor

Medicine & Health / Neuroscience

created Dec 07, 2009 | popularity 4.2 / 5 (5) | comments 1

Two new studies show that the thalamus--the small central brain structure often characterized as a mere pit-stop for sensory information on its way to the cortex--is heavily involved in sensory processing, and is an important ...


Study shows gene positions may aid cancer diagnosis

Study shows gene positions may aid cancer diagnosis

Biology / Cell & Microbiology

created Dec 07, 2009 | popularity 5 / 5 (1) | comments 0

Certain genes switch their nuclear position in tumor cells, offering a potential new method of diagnosing cancer, say researchers from the National Cancer Institute. The study by Meaburn et al. will be published ...


A cell's 'cap' of bundled fibers could yield clues to disease

A cell's 'cap' of bundled fibers could yield clues to disease (w/ Video)

Biology / Biotechnology

created Dec 02, 2009 | popularity 4 / 5 (1) | comments 0

It turns out that wearing a cap is good for you, at least if you are a mammal cell.


UGA researchers lead team in discovery involving devastating freshwater fish parasite, 'Ich'

Discovery opens new avenues for treating devastating freshwater fish parasite, 'Ich'

Biology / Cell & Microbiology

created Dec 02, 2009 | popularity 4.8 / 5 (5) | comments 0

Researchers from the University of Georgia College of Veterinary Medicine have made an "unexpected" dual discovery that could open new avenues for treating Ichthyophthirius multifiliis, or "Ich", a devastating ...


A mathematical model of a simple circuit in a chicken brain raises fundamental questions about our understanding of neural circu

Mathematical model of a simple circuit in a chicken brain raises fundamental questions

Physics / General Physics

created Dec 01, 2009 | popularity 4.6 / 5 (28) | comments 17

(PhysOrg.com) -- The Web site Neuroanthropology asks visitors to complete this quote, "One of the difficulties in understanding the brain is ...". In addition to the typical facetious remarks, such as "so ...



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