/sci/ - Science & Math

http://journals.sagepub.com/doi/abs/10.1177/0022022110381114

>Western children first show signs of mirror self-recognition (MSR) from 18 to 24 months of age, the benchmark index of emerging self-concept. Such signs include self-oriented behaviors while looking at the mirror to touch or remove a mark surreptitiously placed on the child’s face. The authors attempted to replicate this finding across cultures using a simplified version of the classic “mark test.” In Experiment 1, Kenyan children (N = 82, 18 to 72 months old) display a pronounced absence of spontaneous self-oriented behaviors toward the mark. In Experiment 2, the authors tested children in Fiji, Saint Lucia, Grenada, and Peru (N = 133, 36 to 55 months old), as well as children from urban United States and rural Canada. As expected from existing reports, a majority of the Canadian and American children demonstrate spontaneous self-oriented behaviors toward the mark. However, markedly fewer children from the non-Western rural sites demonstrate such behaviors. These results suggest that there are profound cross-cultural differences in the meaning of the MSR test, questioning the validity of the mark test as a universal index of self-concept in children’s development.

>>8648159
you know there's a "hide thread" button right?

>>8645406
>statistical distributions of intelligence are non-scientific
i mean this is getting ridiculous, you can claim to not like it but to call it non-scientific just because it hurts your feelings?

>>8632407
>installing 8 different latex formats
you dont have to install anything on overleaf brainlet

>>8555373
you obviously still haven't read the proof or even read the image >>8555279 that explicitly writes down the bijection

how much spoonfeeding do you need? you know when you get past first year people won't hold your hand every step of the way right?

>>8532387
>UBC
>tfw were both always here

>another thread
go away climate fearmongerers, there's no place for you here

>tfw no lgf

>>8470379
i studied in russia for a while
they have some very strong high schools that focus on math

i'm talking about learning manifolds and getting assigned the fundamental theorem of algebra as homework before you're 17

>Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path.

>If you want advice regarding college/university or your career path, go to /adv/ - Advice.

>>8437280
>Probably never in your undergrad
why not? i did an intro course on morse theory in my third year and i'm a brainlet

>>8425824
why are these high school brainlets not banned from this board? worse than deliberate shitposters

this is why i only enroll in classes that don't have a retard syllabus

>>8405018
And which of Archimedes publications would you say is more important than the Elements?

>>8400691
>widespread drug use for escapism, disintegration of family, total reliance on large-scale immigration to keep economics going, technological disillusionment
>stable

"peaceful" times don't progress quickly enough to keep up with humanity's needs

the only progress in the phillipines has been possible because of murdering all the scumbag drug addicts

>>8398916
intuition comes from experience

>>8396943
end yourself brainlet

>>8393995
>it is used a lot in proving compactness?
>why? is it show that there finitely many balls ?
probably it'd help if you posted something more concrete

>also the resources i have are [whining]
you seem more concerned about complaining than succeeding, work harder

>>8394002
yes, most likely the standard absolute value

why'd you black out the number?

learn to colour contrast

>>8388136
it depends on how you want to decompose.

you can decompose into transpositions like that but its not very useful since it's not unique. for example:
(1 2 3)= (1 3) ( 1 2) = (1 2) (2 3)
i dont know which rule you use to specifically get (1 2) (2 3) but similarly consider
(1 2 3 4 5) = (1 5) (1 4) (1 3) ( 1 2)
you can see a bit of a pattern here in that you can always decompose as
(a1 a2 a3 ... an) = (a1 an) (a1 a_(n-1) )... (a1 a3) (a1 a2)

decomposition into disjoint cycles is unique though, up to permutation of the cycles, and is much easier to explain:
consider (1 2 3 4)(5 6)(3 4)
see where 1 goes, 1 goes to 2, so we start a cycle (12
where does 2 go? it goes to 3, so now we have (123
where does 3 go? 3 goes to 1, so we can close that cycle (123)

4 goes to 4, so you can write (4) or just exclude it
5 goes to 6 and 6 goes to so we have
(1 2 3 4)(5 6)(3 4)=(123)(4)(56)=(123)(56)

someone recommend me a good source on abelian varieties