Science Stuff

[MissScripture]

[quote name='Adrestia' timestamp='1315500777' post='2302204']
I come across people who think an extra 20 minutes on the elliptical machine completely makes up for an extra cupcake with frosting. If it's a vigorous 20 minutes, the calories might balance. There's no way to compensate for excess fat & sugar along with the lack of nutritional value.
[/quote]
I say stuff like that, but I don't really believe it. I just want to make myself feel better for indulging.

[Papist]

[img]http://www.iconbazaar.com/molecules/drugs/mood_elevators/prozac_a.gif[/img]

[MIKolbe]

[quote name='BG45' timestamp='1315500225' post='2302197']
I also laughed at promiscuous enzymes.
[/quote]
enzymes are whores and everyone knows this

[Adrestia]

[quote name='MIkolbe' timestamp='1316712550' post='2308563']
enzymes are whores and everyone knows this
[/quote]
it's true

[BG45]

[url="http://www.reuters.com/article/2011/09/22/science-light-idUSL5E7KM3UU20110922"]Particles moving faster than the speed of light in CERN experiments - Reuters[/url]

[quote](Reuters) - An international team of scientists has recorded neutrino particles travelling faster than the speed of light, a spokesman for the researchers said on Thursday -- in what could be a challenge to one of the fundamental rules of physics.[/quote]

[Adrestia]

This is so true!!

[url="http://www.reuters.com/article/2011/10/04/us-nobel-physics-riess-idUSTRE7936GN20111004"]http://www.reuters.com/article/2011/10/04/us-nobel-physics-riess-idUSTRE7936GN20111004[/url]

[quote]
"I make two or three mistakes a day on a good day, and so when you see something odd in the results, the opposite of what you expect, you usually have to go, 'Well, I did something stupid,'" Riess told a news conference at The Johns Hopkins University in Baltimore, where he is a professor of physics and astronomy.
"So I spent weeks looking for that mistake and I couldn't find it," he said of the discovery made over a decade ago.
[/quote]

[missionseeker]

I cannot understand a word of this, Dr.

[HopefulBride]

neither can I

[MIKolbe]

i can

[HopefulBride]

YOu can't

[Adrestia]

On Wednesday I started the process of making a new virus. (Yes, we make our own custom viruses for research. They are not dangerous to the community at all, they're engineered to only have one life cycle.) Yesterday I attempted to infect the cancer cells that I study with the new virus. If it works, we might be one step closer to understanding why cancer metastasis to the lymph node is so bad. I accept prayers for my work. Thank you.

[MissScripture]

Oh...I thought it was so bad because once it got to the lymph nodes, it could travel far more easily to the rest of the body through the lymph system. What is this other "so bad" you speak of? Now I'm confused.


ETA: That's kind of razzle dazzle, but kind of scary that you can make viruses. You could take over the world doing that, or something.

Edited October 15, 2011 by MissScripture

[Adrestia]

[quote name='MissScripture' timestamp='1318688233' post='2321576']
Oh...I thought it was so bad because once it got to the lymph nodes, it could travel far more easily to the rest of the body through the lymph system. What is this other "so bad" you speak of? Now I'm confused.[/quote]
Nope. The lymphatic system drains excess fluid from tissues, it doesn't spread things around. That's why people get lymphedema when the lymphatic system is impaired.

The presence lymphatic metastasis doubles mortality. There are a few theories about why, but no evidence for any of them. (So really everyone is confused - don't feel bad.) Right now scientists don't even know how the cancer cells adhere and grow in the lymph nodes - that's what my lab studies.

[quote name='MissScripture' timestamp='1318688233' post='2321576']ETA: That's kind of razzle dazzle, but kind of scary that you can make viruses. You could take over the world doing that, or something.
[/quote]
it's kinda amesome. We used attenuated, stripped down HIV to create custom viruses for research purposes. My mom would completely freak out if I tried to explain it to her.

[MissScripture]

[quote name='Adrestia' timestamp='1318694590' post='2321607']
Nope. The lymphatic system drains excess fluid from tissues, it doesn't spread things around. That's why people get lymphedema when the lymphatic system is impaired.

The presence lymphatic metastasis doubles mortality. There are a few theories about why, but no evidence for any of them. (So really everyone is confused - don't feel bad.) Right now scientists don't even know how the cancer cells adhere and grow in the lymph nodes - that's what my lab studies.


it's kinda amesome. We used attenuated, stripped down HIV to create custom viruses for research purposes. My mom would completely freak out if I tried to explain it to her.
[/quote]
But the fluid has to flow somewhere after it gets into the lymphatic system, doesn't it? I mean, that's how you get rid of lymphedema is by opening up the lymph vessels and allowing it to flow through, isn't it? Or did they lie to us all through school? (And now I feel better about being on here and not studying, like I really should start doing, because I'm learning stuff. YAY! )

[Adrestia]

[quote name='MissScripture' timestamp='1318698216' post='2321625']
But the fluid has to flow somewhere after it gets into the lymphatic system, doesn't it? I mean, that's how you get rid of lymphedema is by opening up the lymph vessels and allowing it to flow through, isn't it? Or did they lie to us all through school? (And now I feel better about being on here and not studying, like I really should start doing, because I'm learning stuff. YAY! )
[/quote]

The entire lymphatic system flows toward the bloodstream, returning fluid from body tissues to the blood (via the thoracic duct). So getting into the lymph system does eventually allow access to the blood stream. That doesn't explain why a metastatic lesion in a lymph node doubles mortality even when no distant metastasis is present. Please keep the questions coming. It's good for me to look at this question through new eyes!