STEM Flashcards

(39 cards)

1
Q

taxicab number, characteristic (details), background story.

A

1729, the smallest number that is the sum of two cubes in two different ways (1^3+12^3 and 9^3+10^3), mentioned by Srinivasa Ramanujan to GH Hardy when commenting about a number on a London cab.

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2
Q

formula for the derivative of a polynomial

A

where f(x) = ax^n + b
f(x)’ = nax^(n-1) + 0

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3
Q

quadratic formula

A

x = (-b +/- √[b^2 - 4ac])/2a

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4
Q

Define RNN + LLM

A

Recurrent Reural Network (RNN) plus Large Language Model (LLM) equals receptance weighted key value (RWKV)

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5
Q

drug that reduces glucose levels, effects similar to insulin (full name)

A

GLP-1 RA (glucagon-like peptide-1 receptor agonist)

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6
Q

Trig derivatives

A

sin’(x) = cos(x)
cos’(x) = -sin(x)
tan’(x) = sec^2(x)

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7
Q

Product Rule

A

(uv)’ = u’v + v’*u

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8
Q

Quotient Rule 

A

(u/v)’ = (u’v - v’u)/v^2

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9
Q

Chain Rule

A

{g[f(x)]}’ = g’[f(x)] * [f(x)]’

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10
Q

failed anti-inflammatory that shows promise as a snakebite antivenom

A

Varespladib

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11
Q

3 common oaks of California, in order of increasing size (Linnean name)

A

scrub oak (Quercus berberidifolia)
live oak (Quercus agrifolia)
valley oak (Quercus lobata)

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12
Q

CRISPR-Cas9 full name; function

A

clustered regularly interspaced short palindromic repeats + CRISPR-associated protein 9 ;

gene-editing chemical derived from bacteria that use it to disable bacteriophages

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13
Q

common SoCal hillside plant, not the poisonous variety (scientific name)

A

laurel sumac (Malosma laurina)

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14
Q

Kuiper Belt object visited by New Horizons spacecraft 2019 Jan 01 (early informal name)

A

Arrokoth (Ultima Thule)

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15
Q

unable to think past a single idea

A

Einstellung effect

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16
Q

Planck constant, use, formula

A

h = 6.62607015×10^−34 J⋅sec

for calculating the energy of a photon, as:

E = hF ,

where
E = energy of photon
h = Planck constant
F = frequency (cycles per second)

17
Q

reduced Planck constant symbol, derivation, value

A

ħ (pronounced h-bar) = h/2π = 1.054571817×10^−34Js

18
Q

Mohs scale list, mnemonic

A

1 talc
2 gypsum
3 calcite
4 fluorite
5 apetite
6 orthoclase
7 quartz
8 topaz
9 corundum
10 diamond

Terrible Giants Can Find Alligators
Or Quaint Trolls Conveniently Digestible

19
Q

5 skin layers from deep to superficial

A

stratum basale
stratum spinosum
stratum granulosum
stratum lucidum
stratum corneum

20
Q

density formula, pronunciation

A

ρ = m/V = kg/m^3

“rho equals mass divided by Volume”

(NOTE: “ρ” is italicized)

21
Q

force formula, force unit

A

F = ma

newton = 1kgm/s^2

22
Q

work equation (SI unit)

A

J = f x d (joule)

w = (ma) x d

work = force x distance

J = N x m

J = 1kg x 1m/s^2 = 1kgm^2/s^2

23
Q

AI HHH principle

A

helpful, honest, harmless

24
Q

skills and abilities that are hard to teach (as opposed to formal info like math or history)

A

tacit knowledge

25
Beaufort scale
0 00-00 mph calm 1 01-03 mph light air 2 04-07 mph light breeze 3 08-12 mph gentle breeze 4 13-18 mph moderate breeze 5 19-23 mph fresh breeze 6 24-30 mph strong breeze 7 31-38 mph near gale 8 39-45 mph gale 9 46-54 mph strong gale 10 55-63 mph storm 11 64-72 mph violent storm 12 73+ mph hurricane-force
26
anti-gingivitis oral rinse active ingredient
cetylpyridinium chloride
27
value of E (alt name)
2.718281828 (Euler's Number)
28
lead atomic #
82
29
iron atomic #
26
30
4 wild bird species with populations above 1 billion
1. house sparrow 2. European starling 3. ring-billed gull 4. barn swallow
31
quadratic equation
ax^2 + bx + c = 0 [iff a ≠ 0]
32
weather: 6 key measures
temperature pressure wind speed wind direction humidity precipitation
33
world grain production by tonnage
corn 1.2B wheat 0.8B rice 0.5B barley 0.1B sorguum 0.06 oats 0.02 rye 0.01
34
Kelly criterion: def, formula
amount of bankroll to bet: K = (bp - q)/b or K = (bp - (1-p))/b b = profit (payoff rate) (1 = 100%) p = probability of win q = probability of loss EX: b = 1, p = 0.6, q = 0.4 thus: K = (1 x 0.6 - 0.4)/1 = 0.2
35
formula for interest compounding
A = P(1+r/n)^nt A = final amount P = initial principal balance r = interest rate n = number of times interest applied per time period t = number of time periods elapsed
36
Bayes's Theorem
P(A|B) = P(B|A) x P(A) / P(B)
37
pi to 15 digits; mnemonic
3.14159265358979 How I need a drink, alcoholic of course, after the heavy lectures involving quantum mechanics.
38
amino acid structure
carboxyl (COOH) + amine (NH2) + R group
39
NLP full name, definition
Natural Language Processing, the ability of computers to understand, interpret, and generate human language; LLMs are one type