Pinterest is an online pinboard.
Organize and share things you love.
Cells can split in any orientation – up/down, left/right, diagonally – but the split needs to generate two equal halves, a process not left to chance. Scientists have been researching a protein LGN (shown in green) that plays a role in balancing the division. The normal cell (left) sees chromosomes line up down the middle between two crescents of LGN. When they used a drug to shift the chromosomes off-centre (right), the pattern of LGN signaling changed.
David Bowie has a condition called anisocoria, which is the medical term for unequal pupils. At age 14 he got punched in the eye during a fight. David was admitted to Farnborough Hospital, where it was found that the sphincter muscles of his left eye were badly torn and he underwent two eye operations. He has an enlarged pupil that remains permanently open, giving them an unusual appearance.
My birthday is next month...think I can justify buying this for myself?? LOVE.
Phytoplankton bloom off the coast of Ireland as seen by the SPOT-5 satellite.
The calico lobster known as Calvin is shown in this photo provided by Boston's New England Aquarium. The lobster is dark with bright orange and yellow spots.
Bye bye, La Niña: ocean currents are starting to warm up again, and hopefully Australia will dry up while the southwestern US will see rain again.
The processes of neurons are shaped by structural proteins, such as actin and tubulin, which form their internal scaffolding. Scientists have noted that these proteins are regularly found along with another called Hsp27 (stained green). They wonder if Hsp27 may play some role in tendril production and growth. If so, therapies that target Hsp27 could one day help damaged neurons regrow.
Most microscopes can’t penetrate more than a few tenths of a millimetre below the surface, making it impossible to observe the intricate details within. But thanks to a mixture of chemicals called Scale, it is now possible to see further into the brain than ever before. Scale can render brain tissue as clear as glass: after two weeks of treatment a mouse brain is completely transparent with nerve cells intact (left) and a laser beam can pass straight through it (right).
Santiago Ramón y Cajal showed that nerve cells are discrete yet interconnected. Rewarded with a Nobel Prize in 1906, he is dubbed the ‘father of modern neuroscience’.
The zinc finger of a binding protein (in blue) is shown bound to a section of the double helix (pictured in green and red). The green dots are zinc ions, which play a key role in ensuring the protein takes on just the right shape to fit the helical DNA.
Here we see a map of chromosome 18 of the mouse genome, which takes into account its arrangement in the nucleus. Similar to a table in the back of an A to Z, which plots the distance between towns and cities, each row represents the distance of one stretch of genome from the rest. Gene regions marked in red are close, and those coloured blue are further away. Such maps can be used to compare healthy genomes with those structurally altered, or translocated, by diseases like cancer.
Astronomers have identified the most distant galaxy cluster in the Universe: a staggering 12.7 *billion* light years away!
Anatomical hand knitted heart pillow by The Teary Seal
1 like 2 repins
Jupiter is edging toward the Sun in the sky, and the scene was recently captured by NASA's SOHO satellite. Image credit: NASA/ESA/SOHO
Keratin-containing cells flatten as they age, then die, and this becomes the hard nail. Nails on the hands protect the fingertips, enhance fine touch, and are used for scratching. This image shows regrowth over six months after the nail had to be removed following a bone injury. The matrix can be seen clearly on the bottom row.
This composite image is formed from 230,000 frames and is detailed enough to illuminate individual actin fibres, which are less than a millionth of a centimetre thick. Such high resolution can reveal the effects of a disease or a genetic fault in the finest detail, which could better inform decisions about treatment.
1 repin
Wolbachia bacteria (stained green) infecting cells at the tips of fruit fly reproductive organ. This invasion has the effect of increasing the number of adjoining stem cells, which mature into eggs (red), by making them divide more frequently and preventing cell death. In some other insect species, Wolbachia hinder reproduction and shorten lifespan of offspring. Insights into how these microbes manipulate reproduction could help scientists combat insect-borne diseases in the future.
Saturn! Also, two moons, rings, shadows, and the dregs of a ginormous storm.
"This place is not a place of honor. No highly esteemed deed is commemorated here. Nothing valued is here." Sandia National Laboratories charged a panel of outside experts with the task to design a 10,000-year marking system for the WIPP (Waste Isolation Pilot Plant) site, and estimate the efficacy of the system against various types of intrusion. The goal of the marking system is to deter inadvertent human interference with the site. Click through for a more thorough explanation.
Unprocessed image from Cassini spacecraft. Taken on April 14, this picture shows Saturn's moon Enceladus. Geysers of water are erupting from its south pole, reaching heights of hundreds of kilometers, with some particles leaving the tiny moon altogether.
M77, a nearby spiral galaxy with a dark secret (click to find out what it is :) Credit: Andre vd Hoeven
You're looking at the only known example of what conservationists are calling a strawberry colored African leopard. The big, pink-hued cat — which makes its home at South Africa's Madikwe Game Reserve — is affected by erythrism, a poorly understood genetic condition that causes him to either overproduce red pigments or underproduce dark pigments in his coat.
1 like 1 comment 3 repins
Neil deGrasse Tyson amazing answers on Reddit: Q: If a taco and a burrito are traveling near the speed of light and collide, will the result be delicious? (detaer) A: The result would be an explosion large enough to destroy a small village. high speed collisions do that, whether or not they are made of Mexican food.
1 like
Pink Amblycorypha Katydid by quadring101 #Insects #Katydid #Pink_Katydid #quadring101
by quadling101
That’s the Kizimen volcano, which has been erupting since late 2010. This picture was taken by the Earth Observing-1 satellite in December of 2011. As you can see, snow is abundant, except where ash has fallen and shaded the ground brown. The plume is steam, but that must freeze pretty quickly once it hits that frigid air.
1 like 1 repin
If you ever drop acid on the far side of the Moon, this topographic map may be your only hope. Image credit: NASA/GSFC/DLR/Arizona State University
To maintain healthy skin tissue we produce stem cells that divide and mature into a multitude of specialist cell types. Cancer may result when this process goes wrong. A healthy balance between division and maturation is achieved with the help of transcriptional regulator proteins. The interplay between two such proteins, c-Myc and Sin3a, pushes stop and start buttons on genes in the stem cell. This image shows mouse skin that lacks Sin3a (viewed from below). Another protein (stained red) out...
Hammerhead Shark Double Whammy. ScienceDaily (Mar. 26, 2012) — Identity confusion between a new, yet unnamed shark species, originally discovered off the eastern United States by Nova Southeastern University Oceanographic Center (NSU-OC) researchers, and its look-alike cousin -- the endangered scalloped hammerhead shark -- may threaten the survival of both species.
Fetching pins…
Christina Kuklinski I love seeing this right between "pretty pink bridesmaids dresses" and "Mediterranean mac n cheese." :)