Rookie Med

Check it out, let me know what you think, and above all, Enjoy...

Posts tagged science

6,337 notes

infinity-imagined:

Neurons growing in a cell culture

These time lapse animations use phase contrast microscopy to show neural stem cells in a nutrient medium for 4 hours.  They reveal the dynamic growth and recycling of dendrites and synapses as neurons establish relationships with each other.  The social behavior of these cells creates the incredible properties of the mind and brain.

Credit: University of Victoria Medical Sciences

This is really Awesome. Good GIFs

(via mouseinscrubs)

Filed under Neurons Science biological science biology cell biology

3,016 notes

ohyeahdevelopmentalbiology:

casualstroll:

jtotheizzoe:

Overly Honest Methods: Uncovering the hilarious truth behind how science actually gets done


Earlier this week, in a fit of comedic inspiration, a postdoc named Leigh tweeted a funny lab confession and included the hashtag #overlyhonestmethods. By the end of the day, dozens of scientists had joined in, and the result is nothing short of hilarious.

Science is an incredibly painstaking and difficult process, and in addition to being quite funny, these tweets pull back the curtain on just how human a process research really is. Some of them had me raising my eyebrows right after I finished giggling, because please tell me you didn’t actually do that. Others had me nodding sagely in agreement, because sometimes you drop a tube or run out of a chemical and the world has to keep on turning, man.

Check out this collection of 75 of the best, and Robert Gonzalez has picked quite a few gems at io9. What are your favorites? Got any confessions?

Haha. The last one.

Oh undergrad, how I (somewhat) miss you.

Filed under Science Undergrad Funny Real science Experiments

55 notes

14-billion-years-later: This picture shows three really cool parts of a cell, first off the nucleus in green, actin in purple and the microtubules in that lovely yellow. Microtubules and actin are key components of the cell’s cytoskeleton and help give the cell it’s shape and structural support.  Molec was a favorite of mine.

14-billion-years-later:

This picture shows three really cool parts of a cell, first off the nucleus in green, actin in purple and the microtubules in that lovely yellow. Microtubules and actin are key components of the cell’s cytoskeleton and help give the cell it’s shape and structural support.

 Molec was a favorite of mine.

Filed under science facts microbiology biology

54 notes

ohyeahdevelopmentalbiology: flygandejakob: The face of a frog: Time-lapse video reveals never-before-seen bioelectric pattern There’s so much cool stuff happening in developmental biology these days! For the first time, Tufts University biologists have reported that bioelectrical signals are necessary for normal head and facial formation in an organism and have captured that process in a time-lapse video that reveals never-before-seen patterns of visible bioelectrical signals outlining where eyes, nose, mouth, and other features will appear in an embryonic tadpole… “We believe this is the first time such patterning has been reported for an entire structure, not just for a single organ. I would never have predicted anything like it. It’s a jaw dropper”… “Our research shows that the electrical state of a cell is fundamental to development. Bioelectrical signaling appears to regulate a sequence of events, not just one,” said Laura Vandenberg. “Developmental biologists are used to thinking of sequences in which a gene produces a protein product that in turn ultimately leads to development of an eye or a mouth. But our work suggests that something else — a bioelectrical signal — is required before that can happen… “Studying bioelectrical signaling has led us to a different, and broader, way of thinking about diseases like cancer, birth defects and tissue regeneration,” Adams notes. “Potentially we can find electrical switches that turn on entire developmental cascades rather than having to find many specific tools that turn on many specific genes within that cascade, as is the current approach with gene therapy. After all, we already have tools for regulating some of these bioelectrical signals, such as drugs that prevent acid reflux by controlling potassium and hydrogen ions.”

ohyeahdevelopmentalbiology:

flygandejakob:

The face of a frog: Time-lapse video reveals never-before-seen bioelectric pattern

There’s so much cool stuff happening in developmental biology these days!

For the first time, Tufts University biologists have reported that bioelectrical signals are necessary for normal head and facial formation in an organism and have captured that process in a time-lapse video that reveals never-before-seen patterns of visible bioelectrical signals outlining where eyes, nose, mouth, and other features will appear in an embryonic tadpole…

“We believe this is the first time such patterning has been reported for an entire structure, not just for a single organ. I would never have predicted anything like it. It’s a jaw dropper”…

“Our research shows that the electrical state of a cell is fundamental to development. Bioelectrical signaling appears to regulate a sequence of events, not just one,” said Laura Vandenberg. “Developmental biologists are used to thinking of sequences in which a gene produces a protein product that in turn ultimately leads to development of an eye or a mouth. But our work suggests that something else — a bioelectrical signal — is required before that can happen…

“Studying bioelectrical signaling has led us to a different, and broader, way of thinking about diseases like cancer, birth defects and tissue regeneration,” Adams notes. “Potentially we can find electrical switches that turn on entire developmental cascades rather than having to find many specific tools that turn on many specific genes within that cascade, as is the current approach with gene therapy. After all, we already have tools for regulating some of these bioelectrical signals, such as drugs that prevent acid reflux by controlling potassium and hydrogen ions.”

Filed under Embyology Biology Brain CNS Science

5 notes

Antibiotic Resistant Bacteria, a thing of the past?

Recently I read an article on antibiotic-resistant bacteria (MRSA and others). I got to thinking about how scientists are preventing this from becoming a bigger problem. Then i stumbled upon this article here. 

A pretty interesting article which explains that scientists are using nano-fibers to cover antibiotics. these fibers help prevent resistant bacteria from doing just that, resisting the antibiotics. 

Nano fibers have become essential to medicine do to their high surface area to weight ratio. more and more research is being done to understand, as well as utilize these special properties.

Filed under Micro-Biology Science Health Medical Medicine Antibiotics