September202014
prettycolors:

#787a87

prettycolors:

#787a87

September192014

randommomentsdevida:

dxmedstudent:

imagine-ever-after:

Idk how many of my followers love Harry Potter and want to be doctors, but if you meet those criteria you TOTALLY need this shirt!

I think I know a fair number of witches and wizards who need this T-shirt! Even if I know that they’re called Healers in-world. )

NOOOOOOOOOOOOOOOOOOOOO I NEED IT GIMME GIMME GIMME GIMME GIMMMEEEEEEEEEE

(via thehopefulpremed)

7PM

laughatthestars:

today, my school hosted an exhibit for suicide awareness day. the exhibit included 1,100 backpacks in representation of the number of lives that are lost to mental illness each year on college campuses. many of these backpacks were donated by the families that lost loved ones and had their stories attached. i’m so proud of my school for bringing attention to such a serious issue.

(via the-psychology-blog)

7PM
prettycolors:

#9beed5

prettycolors:

#9beed5

September172014

Electrical activity of the Heart

Electrical activity of the Heart

(Source: allheartcare, via thehopefulpremed)

10PM

infinity-imagined:

A hypothesized mechanism for the origin of life, an event called abiogenesis.  In this version, called RNA world, small molecules called nucleotides formed in the waters of the early Earth during the Hadean Eon, and polymerized on the surface of clay minerals.  These simple chains of RNA could replicate themselves in solution, but only slowly and inaccurately.  An RNA molecule developed which would fold into a structure that catalyzed RNA polymerization; a ribozyme.  The first ribozymes would replicate their sister strands, and produce copies of themselves and other RNA molecules. 

     In the same environment, long chains of carbon molecules called phospholipids were formed.  These molecules have two parts, the tail, which is hydrophobic, and the head, which is hydrophillic.  Because of these properties phospholipids will stick together and form micelles and vesicles in water.  Vesicles can absorb RNA nucleotides, concentrating them and creating a space where they can replicate, mutate and evolve.  At some point a ribozyme became enclosed within a vesicle, starting a chain reaction that evolved into the multitude of biological forms that we see today.

   Because this event occurred more than 3.8 billion years ago, theories about how and where it happened are highly speculative.  Possible environments for abiogensis include hydrothermal vents on the ocean floor, hyper saline bubbles of water trapped in ice, radioactive lakes or lagoons on earths surface, and even in space or on another planet, brought to earth through a panspermia event.  We have very little molecular evidence of the first cells, but ribozymes and catalytic RNA molecules are embedded in the DNA replication machinery of all life.  Because evidence of this event has almost certainly been lost to time, the true mechanisms of the origin of life may remain a mystery to science.

(Source: exploringorigins.org, via infinity-imagined)

10PM
asapscience:

It’s all about perspective. 
via SciencePorn

asapscience:

It’s all about perspective. 

via SciencePorn

10PM
7PM
“Fear is incomplete knowledge.” Agatha Christie (via itsquoted)
7PM
“All our discontents about what we want appeared to spring from the want of thankfulness for what we have.” Daniel Defoe (via itsquoted)
7PM
“Truth never damages a cause that is just.” Mahatma Gandhi (via itsquoted)
11AM
11AM
lastnightsreading:

Ben Lerner at LIVE from the NYPL, 9/16/14

lastnightsreading:

Ben Lerner at LIVE from the NYPL, 9/16/14

10AM
September122014
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