The secrets of cell development
Amazingly, all the cells in our body have exactly the same DNA and yet still manage to be completely different and carry out different jobs, from pumping our hearts to fighting off infections!
We have epigenetic marks to thank for this. Epigenetic marks (special molecules that attach at certain areas of the DNA) control how a DNA sequence is read and provide a mechanism for cell memory, without affecting the DNA sequence itself. These marks allow cells to interpret the uniform genetic information in different ways, by switching different genes on or off. The marks also help cells to remember which genes should be on and off and they can also pass this information onto other cells during cell division.
Without these epigenetic mechanisms cells would lose their identity, and to some extent that is what happens in diseases like cancer.
BBSRC-funded Professor Wolf Reik and Dr Fatima Santos, from the University Of Cambridge and The Babraham Institute, are studying stem cells, like the cells above, to find out more about epigenetic information: research which is providing us with new approaches to improve the potential of stem cells for regenerative medicine.
Image credits: Dr Fatima Santos
Read more: http://www.epigenesys.eu/en/
I swear the fuckin producers of the simpsons knew shit was an issue before anyone opened their eyes.
SLAAAAY TORONTO IM SO PROUD OF THIS
Very proud of you, Toronto city designers. You can learn more about Livegreen Toronto here.
SOMEONE FINALLY SAID IT
So if a teenager is at school for roughly 8 hours, and they are doing homework for 6+ hours, and they need AT LEAST 9 HOURS OF SLEEP FOR THEIR DEVELOPING BRAINS, then they may have 0-1 hours for other activities like eating, bathing, exercise, socializing (which is actually incredibly important for emotional, mental, and physical health, as well as the development of skills vital to their future career and having healthy romantic relationships among other things), religious activities, hobbies, extra curriculars, medical care of any kind, chores (also a skill/habit development thing and required by many parents), relaxation, and family time? Not to mention that your parents may or may not pressure you to get a job, or you might need to get one for economic reasons.
I will never not reblog this
"…but teenagers have no reason to be stressed."
Meet The First Woman To Make It Into The FDNY’s Calendar Of Heroes.
Danae Mines became one of the few female firefighters in the New York City Fire Department (FDNY) 11 years ago, despite her family telling her that only men joined the department.
This year, she broke down another barrier by becoming the first woman to be featured in the FDNY’s 2015 Calendar of Heroes. She had been told that the honor was reserved for men, but when she saw the open call for firefighters, she went, despite feeling a little intimidated standing in line with more than 100 men.
There are currently only 41 women in the department, but perhaps the attention Danae is getting will increase that number. “I wanted my picture in the calendar so that young girls and young women can see me and know that they can do this job,” she told the New York Daily News.
I am actually crying right now beCAUSE IT’S THE FUCKING YEAR OF THE BLACK GIRL AND I’VE BEEN WAITING SO LONG FOR THIS
This is wonderful!!!
I will never get tired of reblogging this. Iconic
she’s so pretty too holy shit, got dem looks AND muscles!
The New Jim Crow
1. Ferguson, Missouri has a population of approximately 21,000 people — roughly 67% of those residents are Black
2. The Ferguson police department has around 53 commisioned officers —3 of them are Black
3. Ferguson had *zero* homicides for all of 2014 —until Michael Brown was murdered by Darrin Wilson
4. Things you should know: Five Myths About Black-on-Black Crime
5. Michael Brown was 18yrs old and was about to begin college. Brown had no criminal record, and despite the Ferguson PD’s smear campaign, Mike Brown PAID FOR the cigars —those facts are all important and should be known, but even if Brown was a high school dropout with prior arrests who stole the cigars, 1) it wouldn’t have made his life any less valuable, 2) we have a court system and those are not capital offenses and 3) it doesn’t change the fact that the cop who killed him, Darren Wilson, had no idea about Brown’s personal history when he executed Brown. Wilson saw only a Black teen deemed either “too uppity” or “suspicious” because of his skin color
6. Five examples: The Militarization of the police
7. It’s deeply Institutional: Police view Black Children As Less Innocent
8. This is Not the first time Ferguson’s police have been heavy handed with it’s Black residents - Innocent Black man beaten by cops, then charged with bleeding on police officer’s uniforms
9. So please - don’t get it twisted
'Lightning Rods' Channel Electricity Through Air
By zapping the air with a pair of powerful laser bursts, researchers at the Univ. of Arizona have created highly focused pathways that can channel electricity through the atmosphere.
The technique can potentially direct an electrical discharge up to 33 feet away or more, shattering previous distance records for transmitting electricity through air. It also raises the intriguing possibility of one day channeling lightning with laser power.
Read more: http://www.laboratoryequipment.com/news/2014/08/lightning-rods-channel-electricity-through-air
Ladies of the MCU + Misogyny
"Whatever women do, they must do twice as well as men to be thought half as good. Luckily, this is not difficult." - Charlotte Whitton
your aunt, niece, or cousin,
I am my own person,
and I will not set fire to myself
to keep you warm.
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