1. 09:36 20th Oct 2014

    notes: 953

    reblogged from: scinerds

    tags: biology

    image: download

    s-c-i-guy:


A User’s Guide to the Human Body: The Muscle Edition
This infographic describes skeletal muscles, which are structurally different from heart muscle and the smooth muscle that controls digestion. Unlike heart and smooth muscle, skeletal muscle can be voluntarily controlled.
source

    s-c-i-guy:

    A User’s Guide to the Human Body: The Muscle Edition

    This infographic describes skeletal muscles, which are structurally different from heart muscle and the smooth muscle that controls digestion. Unlike heart and smooth muscle, skeletal muscle can be voluntarily controlled.

    source

     
  2. 10:34 7th Oct 2014

    notes: 860

    reblogged from: txchnologist

    tags: biologybrain

    Discovering The Brain’s GPS Earns Three A Nobel

    txchnologist:

    image

    by Michael Keller

    Three neuroscientists who uncovered how the brain understands where the body is in space have won the Nobel Prize in Physiology or Medicine, judges announced today. 

    "How do we know where we are? How can we find the way from one place to another?" wrote the Nobel Assembly in making the announcement. “This year´s Nobel Laureates have discovered a positioning system, an ‘inner GPS’ in the brain that makes it possible to orient ourselves.”

    Half of the prize went to John O’Keefe, an American and British citizen who is now the head of University College London’s Sainsbury Wellcome Center in Neural Circuits and Behavior. In 1971, O’Keefe found that certain neurons in a rat’s brain activated when the animal was in one location. When it moved somewhere else, other cells lit up. O’Keefe proposed that this activity engendered a sense of place and develop into a map of the external world. Furthermore, the collection of different “place cell” activations for a particular environment could be saved to remember a particular place later.

    Read More

     
  3. 09:33 19th Sep 2014

    notes: 12694

    reblogged from: micahaphone

    tags: biology

    fuckyeahfluiddynamics:

In the dark of the ocean, some animals have evolved to use bioluminescence as a defense. In the animation above, an ostracod, one of the tiny crustaceans seen flitting near the top of the tank, has just been swallowed by a cardinal fish. When threatened, the ostracod ejects two chemicals, luciferin and luciferase, which, when combined, emit light. Because the glow would draw undesirable attention to the cardinal fish, it spits out the ostracod and the glowing liquid and flees. Check out the full video clip over at BBC News. Other crustaceans, including several species of shrimp, also spit out bioluminescent fluids defensively. (Image credit: BBC, source video; via @amyleerobinson)

    fuckyeahfluiddynamics:

    In the dark of the ocean, some animals have evolved to use bioluminescence as a defense. In the animation above, an ostracod, one of the tiny crustaceans seen flitting near the top of the tank, has just been swallowed by a cardinal fish. When threatened, the ostracod ejects two chemicals, luciferin and luciferase, which, when combined, emit light. Because the glow would draw undesirable attention to the cardinal fish, it spits out the ostracod and the glowing liquid and flees. Check out the full video clip over at BBC News. Other crustaceans, including several species of shrimp, also spit out bioluminescent fluids defensively. (Image credit: BBC, source video; via @amyleerobinson)

     
  4. 09:14 25th Aug 2014

    notes: 8573

    reblogged from: tapdancingfairy

    tags: biologybrain

    jupiter2:

This Is Your Brain
University of California researchers have created  a system that shows how the brain works in real time, allowing users to navigate right inside their own heads and see their neuronal activity firing in 3D.
Each color represents source power and connectivity in a different frequency band (theta, alpha, beta, gamma) and the golden lines are white matter anatomical fiber tracts. Estimated information transfer between brain regions is visualized as pulses of light flowing along the fiber tracts connecting the regions.

    jupiter2:

    This Is Your Brain

    University of California researchers have created  a system that shows how the brain works in real time, allowing users to navigate right inside their own heads and see their neuronal activity firing in 3D.

    Each color represents source power and connectivity in a different frequency band (theta, alpha, beta, gamma) and the golden lines are white matter anatomical fiber tracts. Estimated information transfer between brain regions is visualized as pulses of light flowing along the fiber tracts connecting the regions.

     
  5. rhamphotheca:

    Largest Dinosaur Known Found in Argentina

    by Virginia Avalos

    Paleontologists in Argentina’s remote Patagonia region have discovered fossils of what may be the largest dinosaur ever, amid a vast cache of fossils that could shed light on prehistoric life.

    The creature is believed to be a new species of Titanosaur, a long-necked, long-tailed sauropod that walked on four legs and lived some 90 million years ago in the Cretaceous Period.

    Researchers say the plant-eating dinosaur weighed the equivalent of more than 14 African elephants, or about 100 tonnes, and stretched up to 40 meters (130 feet) in length.The previous record holder, also in Argentina, the Argentinosaurus, was estimated to measure 36.6 meters long…

    (read more: PhysOrg)

    images: MEF

     
  6. 09:56 28th Feb 2014

    notes: 42909

    reblogged from: scifigeneration

    tags: biology

    image: download

    scifigeneration:

Maps of bodily sensations associated with different emotions. Hot colors show activated, cool colors deactivated regions.
Credit: Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen.
Source: People worldwide may feel mind-body connections in same way (Medical Xpress)
More info.: Bodily maps of emotions (PNAS)
via scienceisbeauty

Happiness = Human Torch, Anxiety = Iron Man, Depression = Doctor Manhattan, Shame = Spider-Man. 

    scifigeneration:

    Maps of bodily sensations associated with different emotions. Hot colors show activated, cool colors deactivated regions.

    Credit: Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen.

    Source: People worldwide may feel mind-body connections in same way (Medical Xpress)

    More info.: Bodily maps of emotions (PNAS)

    via scienceisbeauty

    Happiness = Human Torch, Anxiety = Iron Man, Depression = Doctor Manhattan, Shame = Spider-Man. 

     
  7. 09:06 20th Feb 2014

    notes: 225

    reblogged from: neurosciencestuff

    tags: biologybrain

    image: download

    neurosciencestuff:

The Hidden Costs of Cognitive Enhancement
Gentle electrical zaps to the brain can accelerate learning and boost performance on a wide range of mental tasks, scientists have reported in recent years. But a new study suggests there may be a hidden price: Gains in one aspect of cognition may come with deficits in another.

Follow the link for the complete article, very interesting. 

    neurosciencestuff:

    The Hidden Costs of Cognitive Enhancement

    Gentle electrical zaps to the brain can accelerate learning and boost performance on a wide range of mental tasks, scientists have reported in recent years. But a new study suggests there may be a hidden price: Gains in one aspect of cognition may come with deficits in another.

    Follow the link for the complete article, very interesting. 

     
  8. 08:55 6th Jan 2014

    notes: 90

    reblogged from: oupacademic

    tags: biologythanks for the fish

     
    • January 4: Britain’s first hand transplantation operation is successfully conducted.
    • January 9: A gamma secretase inhibitor previously experimented for treating Alzheimer’s disease is found to have regenerative effects on inner ear hair cells, potentially allowing for the effective treatment of deafness
    • January 10: Half of all food is wasted worldwide, according to a new report by the British Institution of Mechanical Engineers (IME)
    • January 23: Scientists encode large amounts of digital information, including the complete sonnets of William Shakespeare, on a single strand of synthetic DNA. DNA has immense potential as a storage medium, and may become commercially available for this purpose in the near future.
    • March 14: CERN scientists confirm, with a very high degree of certainty, that a new particle identified by the Large Hadron Collider in July 2012 is the long-sought Higgs boson
    • March 29: The Neanderthal genome is sequenced by German scientists from a toe bone found in southern Siberia.
    • May 22: Researchers at Purdue University in West Lafayette, Indiana, report that Earth is pushing the Moon away more quickly than it has done for most of the past 50 million years
    • July 16:NASA’s Curiosity rover reaches a milestone in its journey across Mars, having travelled 1 kilometre (0.62 mi) since its landing in 2012
    • November 17: Researchers have made the first battery electrode that heals itself, repairing imperfections within a few hours.

    and a lot more…

     
  9. image: download

    explore-blog:

This charming portrait of Charles Darwin and his fox terrier Polly by London-based illustrator Kerry Hyndman is the sweetest thing since this photo of Maurice Sendak and his German shepherd Herman. Pair with literary history’s notable pets and the authors who loved them.

On the Origin of Species was published on November 24 1859

    explore-blog:

    This charming portrait of Charles Darwin and his fox terrier Polly by London-based illustrator Kerry Hyndman is the sweetest thing since this photo of Maurice Sendak and his German shepherd Herman. Pair with literary history’s notable pets and the authors who loved them.

    On the Origin of Species was published on November 24 1859