/sci/ - Science & Math

Studying engineering, so we already learn the underlying principles and their applications. Feels good to be ahead of the curve.

>>7066740
>americucks actually have to whore themselves
>this doesn't happen in my country, very good grants are given by the government to those who deserve it (young, good grades)
>they still call it a 'third world' country

Computer Science

The so-called Gustave function of type Bool & Bool & Bool -> Bol is defined as
G (T, F, ⊥) = T
G (⊥, T, F) = T
G (F, ⊥, T) = T
It has the property of being a stable function (in the sense of coherence spaces semantics), which cannot be implemented by any sequential algorithm.

Biochemistry/Biotechnology

The combination enhancement solution is pretty good when dealing with phenolic rich plants

Animal Reproduction

Saving people from starvation.

fuzzy relations, fuzzy numbers, and fuzzy arithmetic. soon to start fuzzy algorithms.

>Biochemistry

>Learned that Argonaute proteins can greatly control regulation of RNAi and miRNA biogenesis

>>7066740
>Microengineering
for assembling microsystems, if you can keep the cost of labor under 15% of the total cost, there is no difference in using swiss workers or chinese workers.

>1st year biochemistry student.
>titrations suck

>>7066776
>Microengineering
It's called Micro Electro Mechanical Systems (MEMS).

You damn Europeans are always getting everything wrong.

Statistics

Just learned about comparing different logistic regression models. The amount of different information criteria gives me a headache. Fortunately information theory is beyond the scope of this course.

>>7066750

>Engineering
Applications include: Faster glory hole repair, More intuitive way of not forgetting to play with the balls, Introducing tounge to the tip of the urethra more effectively

>aerospace engineering
>willing to do post in mathematics (i just love differential equations)

>>7066789
>you are so fucking mad right now

>>7066782
what the fuck is wrong with you. People in my masters study MEMS, I don't. Get over it.

biology
disease is the normal state of being essentially. in fact, not having any sort of disease is weird. and 99% of diseases is inflammation caused by our own immune systems. cancers, flus/colds, arthritis, MS, even mental disorders like depression and ocd are now thought to be caused by inflammatory responses in the brain

>>7066762

Can select for anti-oxidant?
What is combination enhancement solution?

>>7066793
>willing to do post in mathematics (i just love differential equations)
AHAAAHAHAHAHAHAHAHHAA
>PhD in ODEs here we come
>fucking engineers

you cannot travel fastor than the speed of light because e = mc^2 and when you divide by m get the square root the limit is speed.

>>7066802
>cancers

hhaha wot?
cancer is your cells not stopping the copy/paste mechanism, they soon take up resources and that's all there is to it. It's a bug in your DNK, some things you do might make that bug more likely to actually act, but if we could some how not die from any other disease, in time there would still be cancer. Cancer is part of you.

>>7066806
care to elaborate a bit?

>mathematics

i'm learning a little bit of numerical analysis so I can apply newton's method to a system transcendental functions

this has a very specific application in mathematical biology/statistical thermodynamics which i'm currently researching with a professor of mine

>>7066802
I wouldn't go as far as to say 99% of diseases are CAUSED by immune responses, but the symptoms attributed to alot of diseases are definitely because of inflammation

>>7066817
Muh nigga

>>7066783
Comparison of different models can lead to a more accurate model fitting depending on how the variables are given?

Biochemist / Chemical Engineer

Binding significantly below the operational capacity of an affinity column can cause significantly more peak broadening than would be expected by a chemical interaction model alone.

>>7066806
lel

>>7066782
>MEMS
not
>MEMES

>math
>Cauchy-Schwarz Inequality

>>7066842
Yes. Too much explanatory variables gives very good model fit but is overestimating so the confidence intervals are not really worth anything. This is where the information criteria come in.

>>7066740
>Economics
>Existence proof of subgame perfect nash equilibria in epsilon discounted infinitely repeated games

It's for PCR optimization, the name differs slightly from place to place
http://owww.molgen.mpg.de/~ag_krobitsch/16842759.pdf

>>7066740
>Mechanical Engineering
>I haven't learned anything new in a long while about mechanical engineering
Lie algebras are just sets with something that acts like a cross product

>>7066768
My dog is really fuzzy. But not the long, roughish hair on long coats. It's definitely longer than average dog hair and really dense. So fucking soft. Its like a sheep's but softer (softer than this sheep skin rug I have).

>>7066806
I loled too.

>>7066740
Statistics

How to code in SAS.

Astronomy/astrophysics - starting second year

On break at the moment so I recently read 'Schrodingers Kittens' by John Gribbin and simultaneously feel blown away by how weird/awesome quantum physics is, and a bit disillusioned about how much we genuinely 'know'.

It's an old book so my next step is to read about some of the more modern findings.

>>7066781

I took one semester of chem. I think titration was enough to make me throw the towel in.

>CS
> Linked data/SPARQL

>>7067915
>Math
>From part of an exam question today: An ideal A < R is primary if and only if the zerodivisors of R/A are nilpotent.
>All maximal ideals in <span class="math">\{ f | f: [0,1] \to \mathbb{R} \}[/spoiler] are of the form <span class="math">A_{y} = \{ f | f(y) = 0 \}[/spoiler]

>>7066976
>Lie algebras are just sets with something that acts like a cross product
>This is what engineers actually believe

>>7067903
Fucking fuchsia, man. The color of despair.

Energy technology.
Some dudes came up with a way of saving the energy from the sun in the summer time and use it when it's winter again.

A kind of salt that can store a lot of energy and release it when it changes state.
Make some storage tanks underneath the house and charge it with a sun collector.

>>7067989
Holy shit so I see your thing about salt energy storage tanks and was wondering how dangerous it would be to have a year's worth of electricity stored under a house -> had to find out how much energy that was and apparently for a 4 person house in my area it's about 24 gigajoules/yr on average.

B-but apparently 24 gigajoules is only 4 barrels of oil worth. And a barrel of oil is like $60. Electricity let me tell you winds up as much more than $240/yr wtf is going on here?

>>7066909
You undergrad?
Which year?

>>7066806

Glad to know I'm not the only one, sides are in orbit.

>>7068003
First year, micro 101

>Applied maths
>Error estimates for general finite element methods on sobolev spaces

> Mechanical Engineering
> Concept of specific time-area per unit swept volume applied to poppet valve exposed annular area as a function of crank angle

>>7067933

For R3, yeah. Dude's right.
> This is you with your head up your ass

Statistics.

Working on an applied stats project using GEE regression. I implemented an algorithm to weight the model so as to account for longitudinal data which is missing at random.

>>7067989
this isn't new. there's a place in nevada or somewhere in the west that does that. it stores energy for 6 hours in a tank of molten salts then when the sun sets uses it to generate electricity. not sure about storing until the winter tho..

>>7068021
For R3, yeah. But R3 isn't "just a set" with no structure other than a cross-product you asshat.
>This is an engineer trying to defend himself

>>7068597
I am not trying to make or stir a discussion. I am merely pointing out intriguing facts for those who do not now so that their horizon of knowledge may be broadened.

Physics
Deducing Planck's formula from statistical physics was really fun. You model it as a photon gas, get its internal energy and stuff, really cool.
Negative absolute temperatures, too.

The First Fundamental Form is independent of parametrization and allows us to deal with metric related questions without reference to the ambient space

Maths

Chemistry

For reduction of an ester or carboxylic acid compound into an alchohol the standard sodium borohydride reduction used for reduction of aldehydes and ketones will not suffice and instead requires a lithium aluminum hydride reduction.

pls no bully, only in orgo 2

>>7069159
It sucks that stat mech isn't a good research field.

Horticulture, Plant & Soil Science

Plant water movement, even though is dependent upon potential gradients, has a greater effect on tissue than plant water potential and turgor pressure.

>>7070360
NOT SCIENCE
O
T

S
C
I
E
N
C
E

>>7070361
this, fuck off to >>>/out/ and >>>/x/

>>7066740
My field of study: Swords

I recently learned that one way to date Japanese swords is by how the mekugi ana is made - it will be imperfectly round in older swords because, in those days, they had to punch the hole because drills didn't exist.

I don't study Japanese swords a lot, but it kinda came up.

>>7070361
>uses empirical evidence to prove theories
>not science
u wot m9

>pic rel

>>7066796
different anon, but engineerfags are in a dying field

>>7070399
nigga u stupid af engineers will always be in demand no matter where you are. stay mad we are masterrace

>>7070399
unemployment is 3% for all degree holders. engineering is fine.

I remember when engineers were made fun of constantly on /sci/ for being "gay" because they weren't like Comp Sci or Physics or what have you. What happened?

Physical Education: The reason your fat is because exercise was used as punishment which makes you hate it. Same with getting bad grades in PE because you were slow, negative association with Physical Activity.

Physics. I got one you won't be able to find a use for.

Just saw that this thing is equal to the ratio of used space to total space in a 2d close packing, sqrt(3)*pi/6. There's way easier ways to find that number, but this is the coolest way that I've seen.