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help mfats222 16/04/06(Wed)06:01 No. 16309 ID: 9027ad [Reply]

Youtube  What could replace Manganese (IV) Dioxide as an oxidizing agent in a redox reaction? Possibly Dichloromethane?




Anonymous 15/11/18(Wed)03:31 No. 16244 ID: dd0d0b [Reply]
16244

File 14478138804.jpg - (627.05KB , 1000x667 , College.jpg )

Is STEM good to go into if I like working with yes or no answers. I dislike working with stuff such English where there are many different viable answers.


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Anonymous 15/11/25(Wed)03:16 No. 16250 ID: e9dfb1

Actually, although it's usually not possible to find the "best" answer, often it's possible to discern the plainly "wrong" answers, and occasionally two answers can be compared and the "better" answer can be determined unequivocally.
For example, even if I can't prove than an algorithm is correct, if I can come up with various tests that would tell me without question that it is incorrect, and all of them fail, perhaps I can have more confidence in its potential correctness.


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Anonymous 16/03/20(Sun)07:03 No. 16303 ID: 4439d2

This should be less a question of "What kind of answers do I like?" and more of a question of "What kind of questions do I like?"

In the world beyond high school, it comes down to a lot more self guidance. You might have instructors asking you questions in early undergrad that have definite answers.

But you're going to get to the point where no one can lead you to the questions you have to answer any longer, and you need to come up with the questions too.

Also, many STEM fields have no Yes/No answers, as it becomes much more of a Why/How/When quandary.


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Anonymous 16/04/04(Mon)09:53 No. 16307 ID: aee2e1

>>16246

Someone ought to tell reddit




Artificial sweeteners Anonymous 16/02/21(Sun)10:07 No. 16288 ID: f705da [Reply]
16288

File 14560456503.png - (28.70KB , 787x653 , s.png )

Supposing a given artificial sweetener -- say, saccharine or aspartame -- was a carcinogen, what kind of cancer would it produce and by what mechanism?
If this question is too hypothetical to answer, by what mechanism would ingesting a non-toxic chemical cause cancer?


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Anonymous 16/02/23(Tue)01:38 No. 16289 ID: 0500c2

Cancer is caused by some kind of mechanism damaging the DNA of cells on contact, producing a random mutation.

Since we're talking ingestion, it would have to be some kind of gastrointestinal cancer, of which there are several varieties. We can eliminate mouth or throat cancer if we assume the chemical is inert in its base state and only becomes carcinogenic once altered by the process of digestion. That pretty much leaves colon cancer. It could happen if this altered chemical irritated or otherwise physically damaged the lining of the colon. Continued ingestion of this chemical would cause chronic irritation of the colon, in much the same way smoking does for the lungs. That could lead to cancer.


Note: You can create em-dashes by holding the alt key, pressing 0151 on the numpad,and then releasing the alt key, as demonstrated here: — . This is a superior alternative to using two en-dashes.


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Anonymous 16/02/23(Tue)22:01 No. 16290 ID: d8da56

>>16289
Okay, sure, but do we get from irritated tissue to mutated genetic material? I can understand how something like electromagnetic radiation, which can pass through matter and damage the molecular structure of DNA, could cause it, but how would a chemical do it? Is DNA directly exposed to chemicals being metabolized by or otherwise passing through cells such that it can react with them?


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Anonymous 16/03/07(Mon)16:19 No. 16296 ID: cad79b

//are there even papers about knowledge of effects and constituents?

Earlier I asked for a suggestion for a question on the survey that would be important and policy reelvant in the immediate furutre. However, my interests have drifted as I'm getting more familiar with the general topic and the survye. I have found that many of the questions that do interest me onthe survey have been covered already in the literature,a nd the datanalsysies already done of the data from the sruvey(albeit in differnet years). My criterion for ideal project in impact, tractability and neglectness. I feel yes high impact and somewhat tractable (it has been hard to figure out a systematic review, since one relevant for the data often doesn't have papers enough to do, since if it ididn then it wouldn't be neglected enough to study interest me, which is the third criterion.

remember to check that I don't have to renaalse the data from toher papers if it doesn't already indicative something about knowledge --> politilca uspport..... maybe I shoulda.just pick like 3+ papers to search on




Anonymous 16/03/06(Sun)03:19 No. 16295 ID: 716d81 [Reply]
16295

File 145723075429.png - (92.84KB , 600x600 , Venom the Web Agent.png )

Hello /sci/!

Can anyone please reccomend a good web search agent? Preferably some that uses boolean logic. E.g.:

"Awesome game" and "video game" or "video juego".




Rig Anonymous 16/03/02(Wed)19:21 No. 16292 ID: 8800e8 [Reply]
16292

File 145694287655.jpg - (173.87KB , 1600x1200 , Blue Bomb.jpg )

Post your battlestations fegs
Fx 6300 (3.6)Oc
Msi 760gma (Fx)
Sapphire R9 270 2gb (I OCed it)
Corsair H55
Crucial DDR3 1600 8gb


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Anonymous 16/03/02(Wed)23:07 No. 16293 ID: 4abcf4
16293

File 145695643246.jpg - (78.23KB , 1024x768 , IMG_20160302_1946481.jpg )

http://uk.pcpartpicker.com/p/NWB4K8


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Anonymous 16/03/02(Wed)23:37 No. 16294 ID: 79c5fa

I dont have a picture on my laptop of my desktop but:
i5-4690k
MSI 97h pc mate
Zotac gtx 970
Western Digital 1tb HDD
CoolerMaster 650w




Anonymous 16/03/01(Tue)14:53 No. 16291 ID: cad79b [Reply]
16291

File 145684043289.jpg - (7.81KB , 225x225 , What-does-a-happy-workplace-get-you.jpg )

I have my own secret code language. Can you decypher it? Here's an example: 'b2a6l-m-a-i-n csrqeumaotr-n-e'




Anonymous 16/02/18(Thu)03:48 No. 16286 ID: cad79b [Reply]
16286

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Translation of Nanotechnology in Cancer (TONIC) - Novel Nanotechnology Platform for Breast Cancer Treatment

Apparently thuman epidermal growth factor receptor 2 (HER2) overexpression occurs in 20%–25% of all breast cancers and it’s associated with a poor prognosis.

Can a multifunctional trimodal combination (chemotherapeutic agent, molecular targeted therapy and HSP90 inhibitor) polymeric nanoparticle more effectively, less toxically treat HER2-positive breast cancers than care as usual?




Tissue Cultures Anonymous 16/02/16(Tue)16:26 No. 16285 ID: 51f250 [Reply]
16285

File 145563641584.jpg - (42.22KB , 500x750 , TquX6kG.jpg )

Noob biologist here...

What do I need to know to get started growing animal tissues in a lab?




The Process of Designing a Production-Quality PC Case Anonymous 16/02/16(Tue)04:36 No. 16284 ID: 913c25 [Reply]
16284

File 145559380663.png - (99.02KB , 1024x768 , kSt9uzR.png )

http://imgur.com/a/ySuXs




Anti-Aging Anonymous 14/07/31(Thu)06:00 No. 15779 ID: 800849 [Reply]
15779

File 140677920234.jpg - (370.63KB , 850x565 , iStock_000010280186Small.jpg )

Can we get a thread on anti-aging and lengthening lifespans?

Any possibilities, and problems with those possibilities. And ways to get around said problems. And more problems. And repeat. Until we get to even a slightly plausible solution.

Then, maybe somebody like Qin Shi Huang will say, "Hey, maybe if we try to make this better, it will work in a few thousand years!"

First time on /sci/, so bear with me.
Anyway's, lets go?


23 posts and 2 images omitted. Click Reply to view.
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Anonymous 15/09/07(Mon)00:17 No. 16189 ID: c2c43a

>>15844
Okay, so cells that can replentish their own telomeres is a problem.
Is there a way to utilize viruses as a method of introducing a set number of new telomeres to cells? If someone had weekly injections of telomere transporters that affected, say, 10M random cells in the body, then wouldn't this avoid the cancer hell path and still give the genome some padding for splits?


>>
Nazi Icktor 15/12/08(Tue)04:06 No. 16261 ID: 6db675

>>15779
It can not be done without good belief in Jesus Christ. Certainly be a Christian if you want to live a long life.


>>
Lengthened Lifespan Artemis 16/02/09(Tue)18:28 No. 16278 ID: fd4497

The trick to lengthening human lifespan lies within the active regeneration chemical that lies within blood.

The younger the person, the more of the chemical exists within the person.

Currently, the only way to gain access to this chemical's beneficial properties in order to apply it's use to lengthen lifespans is to receive repeated blood transfusions from someone 10 or over years younger than the subject that has a compatible blood type.

Of course this is subject to the chance of rejection.

Other than this, research is currently underway to try to recreate this chemical in a lab environment.

If this is not possible, blood transfusions may be the only way.

Of course this explains the myth of vampires, so enjoy this new knowledge that has in fact been kept secret for a long long time.




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