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/sci/ Science & Math

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Most viewed threads in this category

Starting Out With Java: From Control Structures Through Objects PDF

19 more posts in this thread. [Missing image file: 41O2dc6AaqL._SL500_AA300_.jpg]
Hello /g/. I am looking for a proper PDF for the book Starting Out With Java: From Control Structures Through Objects. I tried looking for it online but could only find one version on Pirate Bay and all the file lockers. The problem with that version is that the text is very low quality making it hard to read. It is basically just a straight scan without addition of any tags or bookmarks. It would be great if you could find me a better version of this book. I would prefer fifth edition but fourth edition would also be great. Thanks!

Handwriting & Intelligence

34 more posts in this thread. [Missing image file: lot_stevens_witness_statement.jpg]
"On average, people with messy handwriting are more intelligent, for the following reasons: 1) Messy handwriting is intended mainly for the writer to read and not others, this indicates the writer is introverted, and therefore more inward thinking and intelligent. 2) When the writer reads the messy writing. He is reading fragments from the page and filling in the illegible gaps with his memory and predictions. As writing and reading is a common occurrence, messy writing would increase intelligence. 3) Messy writing may be the produce of fast handwriting, which would be needed of fast-thinkers." /discuss
2 more posts in this thread. [Missing image file: 897.jpg]
exp(-ix)=cosx-isinx square both sides exp(-2ix)=(cosx)^2 - (sinx)^2 - i2sinxcosx l.h.s can be written again as cos2x-isin2x=(cosx)^2 - (sinx)^2 - isin2x cos2x=(cosx)^2 - (sinx)^2 cos2x=2(cosx)^2 - 1 voila!
10 more posts in this thread. [Missing image file: 3d1.jpg]
At 35 degrees C, K=1.6x10^-5 for the reaction 2NOCl -> 2NO + Cl2. Calculate concentration at equilibrium when 1 mol NOCl and 1 mol NO is initially put in a 1L flask. How do I set this shit up, it makes no sense to me.
6 more posts in this thread. [Missing image file: 1279054212527s.jpg]
Need halp. The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6. What is the probability that an individual's clotting time will be less than 7 second or greater than 8 seconds. Assume normal distribution.
30 more posts in this thread. [Missing image file: Hydrangeas.jpg]
estimate the work you do to mow a lawn 10m by 20m Assume you're pusing with a force of about 15N


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51 more posts in this thread. [Missing image file: Day-Trading.jpg]
Can we really make money/live by day trading stocks? is that just a dream? or its just for a few lucky people?
23 more posts in this thread. [Missing image file: Svalbard_Global_Seed_Vault_main_ent(...).jpg]
Where should you start when you're trying to build up scientific literacy from scratch? How would you do it? Serious question.
5 more posts in this thread. [Missing image file: _67270786_1_92_percent.gif]
Could you please explain how they got that figure? Article is here:http://www.bbc.co.uk/news/magazine-22310186
4 more posts in this thread. [Missing image file: Southern_black_bream.jpg]
Strange question that I would very much appreciate someone answering. How long will a freshwater fish (namely, a Southern Black Bream) live in a chlorinated pool? What if I were to treat the pool with x amount of chlorine neutralizer? 4 lbs of sodium thiosulphate is available to me, but is there something better I could use? How far in advance would I have to add the mixture to ensure the fish live noticeably longer? How much over what period of time is needed? Or is this whole thing completely out of the question?
0 more posts in this thread. [Missing image file: Kamui.jpg]
Hello. I have a few questions for my homework that I need help with. I go to homeschool (get books by mail and do them myself, no, no one teaches me.) so I can't just ask a teacher on Monday or a classmate. The school offers some help, but I work during the week and they're not open when I leave my job, so I need other sources, e.g. /sci/. The first one is: A submarine that is 7500 meters below sea level surfaces at a rate of 80 meters per minute. The depth of the submarine after m minutes is given by d(m) = -7500 + 80m. 1. Give the range of this function. 2. Make a table and graph this function (what do I use as a domains, I'm sure I'll know how to graph it) 3. Give the domain of this function. (Show your calculations) and the second one: Describe and correct the error given 1. f(1) = 1/3 - 4/3(1) = 1/3 - 4/3 = -3/3 = -1 The question above I've searched for it people say it's -2 because they somehow convert the 4/3 into a 5 and the 1/3 into just a 3, not sure how they even did that. I'd just like to know how to do this as my book isn't helping that great. Thank you for your answers and I appreciate it.
4 more posts in this thread. [Missing image file: marijuana-dbc04668ba596d1d11bbfdcab(...).jpg]
Do you blaze it?

Trying to Zero-Out My iTunes Balance

7 more posts in this thread. [Missing image file: Picture 5.png]
I'm trying to figure out some kind of mathematical algorithm wherein I input my account balance, and get a list of what I need to buy on the store in the form of "x many songs that cost $0.69, y many songs that cost $0.99, and z many songs that cost $1.29". So far, I've come up with the equation: x(0.69)+y(0.99)+z(1.29)-a=0 where a is your initial account balance.

Pharmacokinetics - Calculating the mass of excreted metabolites

1 more posts in this thread. [Missing image file: Pharmacokinetics.jpg]
Alright, so, I'm very curious about this. Suppose a person, assumed a healthy male who has never taken it before takes 1000 mg of paracetamol. What would be the mass of the metabolites that he excretes through urine? If you don't want to do that example (no, this isn't homework) then could you just explain to me how you could get an approximation of the mass of the excreted metabolites of a drug?
0 more posts in this thread. [Missing image file: 27217_1138645326101_1826448306_2848(...).jpg]
Your favorite topic : Event Studies. Normally they are used to measure abnormal return in stock value, but is there any reason why they cannot be used to measure other things such as earnings growth ?. I'm thinking about using the market model to estimate a relationship between a firms earnings growth and the markets earnings growth and then see if a certain event affects the firms earnings growth. Is there any basic principle that I'm overlooking here ?
2 more posts in this thread. [Missing image file: 8X2cWV3.jpg]
this is a long shot, but worth a try. I'm basically trying to find how genomic tech has benefited biomedical fields. every journal I find talks about the genes that were discovered using different techniques like next gen sequencing, but I can't find how it's actually benefited society (drug development, stats showing disease decreasing because of it, etc) any help would be insanely appreciated.
6 more posts in this thread. [Missing image file: listeningpanel1.jpg]
http://www.wired.com/wiredscience/2013/04/baby-consciousness/ >Cognitive neuroscientist Sid Kouider of CNRS, the French national research agency, in Paris watched for swings in electrical activity, called event-related potentials (ERPs), in the babies’ brains. In babies who were at least 1 year old, Kouider saw an ERP pattern similar to an adult’s, but it was about three times slower. The team was surprised to see that the 5-month-olds also showed a late slow wave, although it was weaker and more drawn out than in the older babies. Kouider speculates that the late slow wave may be present in babies as young as 2 months. This late slow wave may indicate conscious thought, Kouider and colleagues report online today in Science. The wave, feedback from the prefrontal cortex, suggests that the image is stored briefly in the baby’s temporary “working memory.” And consciousness, Kouider says, is composed of working memory. Why aren't we doing more studies on infants to understand consciousness?
4 more posts in this thread. [Missing image file: image.jpg]
What is the best major for an individual looking to help advance the field of biomechatronics? Like, cybernetics, brain-machine interface, and intelligence amplification? I want to put computers in peoples brains pls help. Or, I guess more accurately, I want to design the machines, I guess. And probe the boundaries of what it means to be human. So Engineering? Biotech? Computer Science? Neuroscience? What schools?
8 more posts in this thread. [Missing image file: o-chem.jpg]
Hey /sci/, I'll be taking organic chem I next school year and to be frank, I am intimidated by the course and what I have heard of it from previous students. How should I approach studying for o-chem? Any good books/sites (I know about KhanAcademy).

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