Recommending: Wooldridge's Introductory Econometrics. It's a good starter book for anyone who has a little bit of stats experience. For an introductory book, it's very broad, and should be useful for someone looking for a good self study book. Covers time series as will.
Request: Just finished a calculus based introductory probability and statistics class. Where do I go from here if I want to delve deeper into probability?
>>7724476 You are so stupid. Just because it will be a long time is trivial. Think of how much time passed before you were born. That is nothing compared to the next iterationg of life that has achieved immortality.
This is a bit of a neuroscience question. It bothers me because it's something that has just resumed happening. And it's irritating. If I'm dealing with an uncomfortable situation, strangers, or something I find unnerving, If I attempt to make eye contact or move my head towards someone my neck does this stuttering thing. Like my mind is shutting down, or having some pulse-like seizure deal at the mere idea of making eye contact. Otherwise I feel fine, can converse properly, but there's like a radius. And if I move my eyes within that radius of someone's face, it happens.
Factors to bear in mind: -Food allergies. Ate some shit recently and this has probably resulted in the elevation of histamine. -Caffeine consumption. -Ate a lot of cocoa beans (salsolinol, endocannabinoid reuptake inhibitors, flavan-3-ols etc)
The latter two tested independently do not result in the above, nor do they when together. That leaves the first. Unfortunately I don't know much about IgG, IgA, or IgE reactions, nor the full extent of histamine and inflammatory processes ability to act as modulatory neurotransmitters etc.
Please help me downregulate this lust to understand.
>>7724357 It has to be the coconut I ate. It's as though it reopened the gates, and I'm back in a land of strange anxieties I falsely believed I had gotten rid of, worked passed, understood and reconciled, whatever. It's all an illusion. A machine easily mistakes its own operation to be more the result of intrinsic factors than it really is.
Fucked for life. So I just need to understand.
>>7724369 I don't think there exists a true self, but... Comment too long. Click here to view the full text.
>When methylene blue was tested in healthy cells that were allowed to progress at the normal rate, the chemical also repaired the age-related damages. The findings were published in the Aging Cell journal on Dec. 10.
How should I start applying methylene blue to age less? Should I apply it on the scalp to prevent balding? Should I just smear it all over myself?
Why is this allowed to happen? I just came across the most extreme example yet: Lorentz contraction. There's a tonne of simple math out there that allows you to calculate the amount of distortion something will have, but seemingly no explanation for what causes the distortion, and an abundance of confusion as to why a fast moving object looks short. >inb4 lorentz contraction doesn't exist and everyone's quoting everyone else on it in a big circle.
>>7724144 >no explanation for what causes the distortion
Movement through the aether
>Surprising as this hypothesis may appear at first sight, yet we shall have to admit that it is by no means far-fetched, as soon as we assume that molecular forces are also transmitted through the ether, like the electric and magnetic forces of which we are able at the present time to make this assertion definitely. If they are so transmitted, the translation will very probably... Comment too long. Click here to view the full text.
>>7724132 By using computer programs and methodologies that have been developed specifically for the problems you have to solve. Plug-n-chug, make sure the answer makes sense, if it doesn't, figure out what wrong, fix it. Rinse, repeat.
>>7724132 > Exactly what is it that an engineer does?
>How do they solve problems?
Well, the recessive engineer who needs to solve a problem trades his anus for the answer of said problem by a dominant engineer. That dominant engineer once was a recessive engineer until it got fucked by another dominant engineer. The story goes that at the origin of this perpetual anal transference of problem solving skills rests a physicist... Comment too long. Click here to view the full text.
Hey guys and girls, what sort of calculator would you recommend for university/college maths and physics? Specifically a Bachelor of Advance Science (Hons), planning to major in either maths or physics and gain a PhD. Currently I use a TI 84 Plus and it's a good one but I'm interested in other ones, like the TI Nspire CX CAS. Any other recommendations or words of wisdom?
I understand that any respectable institution will have a list of banned/approved calculators when it comes to exams. However this is more for self-study and improving my understanding of the concepts and ideas by playing around with them on a good calculator.
>inb4 you shouldn't rely on a calculator My arithmetic and mental algebra skills won't suffer from using a calculator for hours at a time as I've already done that with my TI 84 Plus and my skills have only improved in the three years I've had the TI.
I have TI 84 plus and I can't imagine needing to upgrade. I have seen people with fancy calculators that can do almost anything except maybe sing and dance. All I've ever used it for is graphing and checking sine values. To be honest I don't even know a fraction of what this calculator can probably do. I'm physics 3rd yeat btw.
>>7724036 Do you know the names of the fancy calculators others had? The TI 84 Plus is programmable as it has BASIC in it. I write programs for conics, matrices, solving quadratic formulas with complex solutions, etc. Writing them helps imprint the processes and formulas into my memory so I can recall them quite quickly and accurately whenever needed.
What can I say? I am an old-fashioned pen and paper man. Whenever I need a numerical solution, I use Octave. It seems like an awful hassle to program the TI84+. I've never even looked into BASIC programming so I can't tell if you're onto something with using the calculator for that. Can you by chance compare Octave/Matlab to using a calculator? I'm now genuinely curious as to whether it is worth the pain of getting used to the keyboard on... Comment too long. Click here to view the full text.
>>7723966 Non-rigorous and poorly controlled experiments. Their conclusions are presented with a moronic level of certainty when different parameters very easily could have yielded success. Their interpretation of legends and myths is also frequently left wanting.
The ice cannon comes to mind. Why would it have been a cylinder? Why would your nearly random choice of diameter and cannon ball size have been the only case? What was the salinity and mineral content of this frozen water, and what was the ambient temperature?... Comment too long. Click here to view the full text.
>>7723910 Obviously every organism contains the same DNA, so the lion's body would just look at the DNA and do a reverse transcription of the contents to figure out where to add or remove methyl groups on its own genes. Then it would grow into a watermelon over time. That's evolution, you are what you eat.
>>7723897 I guess I should explain. Environments have a certain amount of carrying capacity which is determined by the features of that environment. How much food is available, how much water is available, the shelter it provides, etc. Any of those features can be considered limiting factors. If there is an abundance of shelter, that's not going to help a species if there is no food or water, for instance.
After a species exceeds the carrying capacity of it's environment, it will not completely drop off right... Comment too long. Click here to view the full text.
>>7723826 doing a thesis sucks.. you think you are getting paid and that you will revolution science. you wont.
at the end of the first year, you will understand. at the end of the second year, you say ''never again''. at the end of the third, you understand that the writing is a drag and that you should have begun since the first year. you think of quitting. you do not quit, graduate and then you understand that postdocs are glorified phds and then you have no job if you do not work on a trendy subject,
>>7723826 We were almost scooped once by one of the groups we were collaborating with... got that paper published fast as a motherfucker upon finding out what they were trying to do. Fuck those faggots.
>>7723826 PhD in Astrophysics here. There's a bit of "lolsotrue" to all PhD Comics.
As your work starts to overlap with other groups, your probability of scoopage increases. I've never been scooped but frankly my work wasn't as high impact as I was hoping. So there's a trade off: 1. work on boring-ish projects no one is doing or cares about or 2. work on interesting things that everyone else is probably trying to solve and risk getting scooped. Find something in between for your graduate work.
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