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Dapthar

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Posts posted by Dapthar

  1. She would be well-suited for VP.

    Giuliani and Rice' date=' a perfectly electable ticket.

    [/quote']I believe the same thing was said about Kerry and Edwards early on, and it didn't seem to do them much good.

     

    AHHHHH! lol. Aw man, I live in CA and Arnie is just crazy. ... Man, I can just imagine him being president.
    The constitution would have to be amended for a non-natural born citizen to become President.

     

    (Source: http://en.wikipedia.org/wiki/President_of_the_United_States, specifically, the "Requirements to hold office" section.)

  2. There are a number of probiotics and antioxidants which I would used to help this condition' date=' Fresh extracted carrot/celery juice, other raw juices, aged garlic, leafy vegtables, green tea, Jason Winters tea, Essiac tea, aloe vera, selenium, beta carotene, vitamines A, C, E, grape seed extract, flax seed oil, et al.

     

    I would ELIMINATE: White flour products, salt preserved and smoked foods, products with white sugar, hydogenated oils, margarines, peanut products, alcohol products, pickled foods, nitrited and nitrated products such as processed meats, colorings, all products with preservatives, etc.

    The above are some things I would apply for myself or my family for any stomach problems.[/quote']I hate to be pedantic, but I have a hard time believing that this regimen will bring back one's stomach glands, which, as mentioned above, is the root of the disease that is believed to be a cause of cancer. This regimen will, at best, ease the inflammation, but not kill the virus.

     

    When they got sick we knew what to do for the remedy. The body heals when you give it what it needs to do it. You don't treat the symptom perse. You treat the body. I and my elder son tend to get hay fever which can lead to asthma, if not attended to. I deal with that with diet, eliminating wheat and other conjesting products, applying antioxidants, et al. I never take any drugs of any kind and seldom have hay fever problems now. My children are grown and use some of what we taught them, but not as much as we'd like. They often consult us when they or their children get sick. They do use the docs some.
    When applicable, lifestyle changes are effective at treating the root of some chronic conditions. I also advocate taking drugs only when absolutely necessary, otherwise, the medicine may become less effective over time, or worse, in the case of unnecessarily taking antibiotics, one can unknowingly create a drug-resistant strain of a disease.

     

    However, holistic treatment is not a viable replacement for modern medicine. Why? As I mentioned before, simple symptoms of a disease can be deadly.

     

    For example, consider allergic reactions. Some children have severe allergic reaction to peanuts, and usually, they find out via allergy tests that they undergo when they are very young. However, if one avoids doctors except when an emergency arises, the first time a parent finds out about such an allergy could be when their child experiences an anaphylactic shock.

     

    To those not knowledgeable about this condition, it may easily be confused with choking, and by the time one realizes what's happening, the child may already have brain damage due to lack of oxygen, or even worse, the child may die.

     

    If a parent is aware of this condition, and their child experiences it, then they could inject them with an EpiPen shot (EpiPens are auto-injectors for epinephrine) and provide their child the necessary time to get to the emergency room.

     

    (Source: http://www.epipen.com/epipen_main.aspx)

     

    The point is, if you only go to the doctor when you have a problem, then you may not find out about serious medical conditions until it is too late.

     

    Holistic treatment IS a good diet and regular exercise, for the most part, often suplimented with minerals, vitamines, herbs, et al. These also are, unlike perscription drugs, essentially food.
    If I remember correctly, the only "safe" vitamin supplement is vitamin C, since any accidental overdose is passed out through one's urine. However, 'fat soluble' vitamins can be very dangerous to take, since they take longer to be removed from the body, increasing chances of a toxic overdose.

     

    Vitamins are categorised as either water-soluble or fat-soluble. Excessive consumption of certain vitamins, notably lipid-soluble vitamins, can cause toxic manifestations.

     

    Compared to water-soluble vitamins, they are stored in much larger amounts in the body. Little is lost through urination.

     

    On the other hand, water-soluble vitamins seem to do much less harm to the body because of the low toxicity of this class of compounds. This is probably attributable to the fact that excess quantities of the compounds are rapidly excreted through urination.

    (Source: http://www.prn2.usm.my/mainsite/bulletin/sun/1996/sun43.html)

     

    Thus, vitamin supplements are far from being "essentially food".

     

    Your solution becomes a bit muddied when the symptoms of a disease are fatal.

     

    We've never allowed sickness to advance to the stage of life threatening.

    While I commend your conscious alterations to diet and dedication to regular exercise' date=' I reiterate that, as in the aforementioned example, sometimes one's first symptoms of an illness are life-threatening medical problems. As such, I cannot advocate, in good conscience, visiting a doctor only when a problem arises. Sometimes one must visit them, and push for certain tests to be administered, to determine potential future health problems, such as allergic reactions, or a predisposition for diabetes.

     

    In some cases, such as if one has cystic fibrosis, exclusive use of holistic methods is a gamble people simply cannot afford to take.

     

    Cystic fibrosis (CF) is a genetic disease affecting approximately 30,000 children and adults in the United States. A defective gene causes the body to produce an abnormally thick, sticky mucus that clogs the lungs and leads to life-threatening lung infections. These thick secretions also obstruct the pancreas, preventing digestive enzymes from reaching the intestines to help break down and absorb food.
    (Source: http://www.cff.org/about_cf/what_is_cf/)

     

    Prior to the advent of drugs that thinned the mucous that accumulates in CF patient's lungs, most were doomed to die in early childhood. However, after the advent of such medicines, the average lifespan of a CF patient has been increased to 30 years.

     

    (Source: http://64.233.161.104/search?q=cache:PpwJDJhCgNoJ:www.diagnose-me.com/cond/C133239.html+cystic+fibrosis+average+lifespan&hl=en)

     

    The medical profession and cancer society's solution becomes very muddled when you factor in the $$ factor. It's too much $$ driven, imo.
    Yes, but money is what drives research. Granted there is a rather pronounced dark side, namely, the most heavily funded drugs are those that the drug companies predict most people will buy. As a result, there is very little 'profit' in researching drugs whose target audience is primarily people who cannot pay for them, i.e. HIV/AIDS, or making existing drugs cheaper to help stop the spread of diseases that are common in areas with poor living conditions, i.e. cholera.

     

    However, the sad fact is, very few people will do anything that does not directly benefit them unless there is a financial incentive. Unlike software, there is a rather large cost associated with drug research, so there is almost no hope of 'open source medicine', if you'll pardon my colloquialism. Thus, no money equals no research, so it is a necessary evil. Primarily those with the ability to pay benefit, but at least through government programs like Medicaid and Medicare, those in need can still, in theory, get the help they require.

     

    Cheers, and the best of health to you and yours.
    Thanks. I hope your lifestyle continues to keep yourself, and your family healthy as well.
  3. How do you post the not equal sign (=/=)
    It's \neq

     

    Example: [math]\neq[/math]

     

    Also, I vote that the "Quick LaTex Tutorial Thread" be cleared out, so that it can be a bit more effective reference for forumers. Just keep any "tuorial" posts and the links to LaTeX references from the thread, and remove everything else.

     

    For convenience, here's all the references that were in the thread:

     

    http://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/ - the LaTeX primer

    http://omega.albany.edu:8008/Symbols.html - some symbols that you might find useful.

    http://www.ctan.org/tex-archive/info/symbols/comprehensive/symbols-a4.pdf - A relatively small' date=' ([i']approximately 2.3 MB[/i]) comprehensive set of symbol tables for [math]\LaTeX[/math'] and some of its add ons.
    here is a really short guide. with most of the notation in there

     

    http://www.maths.nottingham.ac.uk/local/Guides/short-math-guide.pdf

  4. what do peoples think?

    You're right' date=' it's a waste of time to check, since you have four vectors in [math']\mathbb{R} ^3[/math], thus they must be linearly dependent, since there can't be more than three linearly independent vectors in [math]\mathbb{R} ^3[/math].
  5. Okay' date=' can someone help me with this little puppy?

    [math']\lim_{x\to0}(\frac{1}{sin x}-\frac{1}{x})[/math]

    Intuitively, as [math]x\to0[/math], [math]sin x \approx x[/math], therefore, the limit should be [math] 0 [/math].

     

    At the moment, I'll just give you a hint. If you combine the two fractions, you get [math]\lim_{x\to0}{\frac{x-sin x}{x sin x}}[/math]. This is an indeterminate form (namely [math]\frac{0}{0}[/math]), so you can apply L'Hopital's rule. You'll need to apply it twice, but you'll end up getting that the limit is [math] 0 [/math].

     

    If you haven't learned L'Hopital's rule yet, mention so in a post, and I'll try to compute the limit without using it.

  6. I was wondering how exactlyu you check you connection speed. I have comcast high speed cable, and when i go into network connections it says among abunch of other things "speed: 10 Mbps) i find this realy fast. I thought comcast had an upstream of 4mbps.
    Here's a nice, free speed test. However, you need Java installed to run it, but there are links to download it on the speed test page.

     

    Speed Test Link: http://www.dslreports.com/stest?loc=97'>http://www.dslreports.com/stest?loc=97

     

    Link to Speed Test Main Page: http://www.dslreports.com/stest

     

    Just for reference, here's my results from the first test listed above:

     

    Your download speed: 2344382 bps, or 2289 kbps. A 286.1 KB/sec transfer rate.

     

    Your upload speed: 320688 bps, or 313 kbps.

  7. Now' date=' multiply both sides of the equation above by the number 3, to obtain:

     

    [math'] 3dU = (63x^2 -18x+12)dx [/math]

     

    Now, multiply both sides of the equation above, by U.

     

    [math] UdU = U(63x^2 -18x+12)dx [/math]

    Just a minor correction, but I think that from this point onwards, you substituted [math]3 dU[/math] into the right hand side, but forgot to include the factor of [math]3[/math] on the left hand side.

     

    Otherwise, it looked correct to me.

  8. His response was, words to the effect, that the problem for physicists is one of storage i.e. to store data on fundamental particles you will need to use at least one of said particles.
    Sure, seems about right. However, you don't need to simulate every particle all the time. It's similar to the way rendering engines in video games work, namely, they only draw what the player would see.

     

    As mentioned in the paper you referenced:

     

    Simulating the entire universe down to the quantum level is obviously infeasible, unless radically new physics is discovered. But in order to get a realistic simulation of human experience, much less is needed – only whatever is required to ensure that the simulated humans, interacting in normal human ways with their simulated environment, don’t notice any irregularities. The microscopic structure of the inside of the Earth can be safely omitted. Distant astronomical objects can have highly compressed representations: verisimilitude need extend to the narrow band of properties that we can observe from our planet or solar system spacecraft. On the surface of Earth, macroscopic objects in inhabited areas may need to be continuously simulated, but microscopic phenomena could likely be filled in ad hoc. What you see through an electron microscope needs to look unsuspicious, but you usually have no way of confirming its coherence with unobserved parts of the microscopic world. Exceptions arise when we deliberately design systems to harness unobserved microscopic phenomena that operate in accordance with known principles to get results that we are able to independently verify. The paradigmatic case of this is a computer. The simulation may therefore need to include a continuous representation of computers down to the level of individual logic elements. This presents no problem, since our current computing power is negligible by posthuman standards.

    So, could we simulate a (our) universe or is it not physically possible?
    A complete simulation would require another universe to run the simulation in, but one that people couldn't tell from reality is plausible, or as the author of the paper puts it:

     

    Posthuman civilizations would have enough computing power to run hugely many ancestor-simulations even while using only a tiny fraction of their resources for that purpose.
  9. It says in the book that du/dx=2 should not be split up to make du/2=dx, but this is what is done anyway in all the examples :confused:
    This is because, as you have written it, you have a [math]dx[/math] in the integral, so you must solve for something to substitute in for [math]dx[/math], namely [math]dx = \frac{1}{2} \cdot du[/math].
  10. Is it true you must pay very large sums of money if you are unfortunate and get sick there ?
    If you are uninsured, yeah, you get charged an arm and a leg.

     

    Also can you get a local US health care insurance for 1 or 2 months upon arriving in the US and at what price ranges ?
    Yup. As mentioned by atinymonkey, it's called traveler's insurance. The price of it depends on your trip duration, and how much coverage you want to purchase. It'll probably end up being around $100.00 - $200.00 USD, which translates to about 77 - 155 Euros, if you take the minimum possible coverage amount. Here's a site where you can compare traveler's insurance rates: http://www.insuremytrip.com/myquote-1000-0-13027-339901.html.
  11. Cancer, for the most part is a lifestyle induced disease.
    That's a rather sweeping generalization, and while certain activities, smoking in particular, increase one's risk of cancer, there are many types of cancer whose primary cause is not due to "lifestyle choices". For example:

     

    While not common in the US, stomach cancer is the second most common cancer in the world, as well as one of the leading causes of cancer deaths.
    (Source: http://www.cancer.org/docroot/NWS/content/NWS_1_1x_Large_Study_Links_Tobacco_To_Stomach_Cancer.asp)

     

    The currently, it is believed that one of the main causes of this cancer is atrophic gastritis, where:

     

    This is a condition where the normal glands of the stomach are either decreased or absent. There is a variable degree of inflammation (the stomach cells are damaged by cells of the patient's immune system), and this is often due to H pylori infection. It is not known exactly why this condition progresses to cancer.
    (Source: http://www.cancer.org/docroot/CRI/content/CRI_2_4_2X_Do_we_know_what_causes_stomach_cancer_40.asp?rnav=cri)

     

    We are also the most obese. Why?
    In my opinion, this is due to the fact that obesity doesn't tend to cause severe medical problems until much later in one's life, and thus, the only immediate negative effect of eating whatever one wants while they are relatively young is a negative social stigma.

     

    I'll be 70 this year and haven't been to a med doctor for about 35 years, after nearly loosing my life from the mistakes the last one.
    Care to elaborate?

     

    My children were raised without a family physician, except to set a fracture.
    How do you know that they don't have conditions that show few precursors to serious medical conditions, such as such a high cholesterol, or high blood pressure? What about vaccinations? What if they had a serious medical condition whose symptoms are life threatening, but easily treated with modern medicines, such as asthma?

     

    I advise you to look into the rapidly growing alternative healing aspect of health in your quest for quality information here.
    I hope that you aren't asserting that holistic treatment are a substitute for a good diet and regular exercise.

     

    Holistic healing treats the body so as to heal itself for the long haul, rather than to squelch the symptom for a spell with a prescription drug.
    Your solution becomes a bit muddied when the symptoms of a disease are fatal.
  12. YT can u give and explain the drake equations i read the equation but i only found one.

    are there more than one eqaution?

    well could u explain the equation and how they are credible

    As fara as I know' date=' there is only one Drake equation, namely: ([i']This is largely copied from http://www.activemind.com/Mysterious/Topics/SETI/drake_equation.html[/i])

     

    [math]N_{civ}=N_{star}\cdot f_p \cdot n_e \cdot f_l \cdot f_i \cdot f_c \cdot f_L[/math]

     

    Where:

     

    [math]N_{civ}[/math] = The number of intelligent, communicating civilizations there are in our galaxy.

     

    [math]N_{star}[/math] = The number of stars in the Milky Way Galaxy.

     

    [math]f_p[/math] = The fraction of stars that have planets around them.

     

    [math]n_e[/math] = The number of planets per star that are capable of sustaining life.

     

    [math]f_l[/math] = The fraction of planets in [math]n_e[/math] where life evolves.

     

    [math]f_i[/math] = The fraction of [math]f_l[/math] where intelligent life evolves.

     

    [math]f_c[/math] = The fraction of [math]f_i[/math] that communicate.

     

    [math]f_L[/math] = Fraction of the planet's life during which the communicating civilizations live.

     

    There is also a very nice calculator at the bottom of the following webpage (same page as above) that lets one plug various numbers into the Drake equation and see how many civilizations one gets.

     

    Link: http://www.activemind.com/Mysterious/Topics/SETI/drake_equation.html

     

    Finally, regarding the poll, I voted yes, for probabilistic reasons.

  13. But to be on the safe side, thats why all the dentists run outa the room when they x-ray your teeth
    Actually, they leave the room for a very good reason. Think about it for a moment. When you go to the dentist and have a diagnostic x-ray of your teeth made, it is most likely the only time during the year that you are exposed to a relatively high amount of x-ray radiation.

     

    However, for the dentist, you may be their 3rd patient that week. Thus, if they stayed in the room when all of the patients have their x-rays taken, they end up exposing themselves to much higher amounts of radiation over the course of a year, increasing their risk for cancer.

  14. Everything has a size, shape or form, whatever it is. That includes infinity.
    Have you taken a Geometry class as of yet? If you haven't, you might want to consider the following definitions before you continue down the whole 'everything has a size and shape' path, for I believe the definitions below show that, at the very least, your assertion does not apply to Mathematical constructs. (The definitions shown below are from Wikipedia.)

     

    Point: "An entity with a location in space but no extent (volume, area or length). In geometry, a point therefore captures the notion of location; no further information is captured."

     

    Line: "An (infinitely) thin, (infinitely) long, straight geometrical object, i.e. a curve that is long and straight."

     

    But the point I am raising is that up to now from the past 10 thousand years all the mathematics and science that we got they deal with closed systems or limited things and systems.
    That's not exactly correct. In colloquial terms, Calculus deals with 'the infinite and the infinitesimal', and was invented over 300 years ago.

     

    We have not got yet language, philosophy, theology, mathematics and sciece that can deal with boundary less, borderless, and limitless infinitely open things or open systems. We need to develop science that can deal with things at infinity level.
    See my above response. Of course those who are familiar with Calculus may find fault with my above description of it, however, there are other fields in Mathematics ([math joke]No pun intended. Well, maybe just a little one. :D[/math joke]) that deal with infinity and infinitesimals in a more concrete manner, such as Non-Standard Analysis.
  15. Ok so i got the inverse down real good now thanks' date=' but i dont quite know what is meant by finding the solutions of a homogenous equation (find the null vectors)

     

    is that when i put the identity next to it then work through and find a matrix that will give general solution or is that when you solve for Ax=0 and then find the non trivial solutions?[/quote']It's the [math]Ax = 0[/math] one.

  16. Do you guys know of any particular strategies to use when doing when arithmetic in your head, so that you can solve your problem quickly and correctly?
    Always try to work with round numbers, and split up decimals into more manageable parts. For example, say you wanted to purchase 5 items that are $1.17 each. Now, you could try to work out $1.17[math]\cdot[/math]5 in your head, but let's try another way.

     

    Now, we know that 5[math]\cdot[/math]$1.00 = $5.00, so keep that in mind.

     

    Also, $.17 is not a very round number, so let's use $.20, which is $.03 off. Now, we know that 5[math]\cdot[/math]$.20 = $1.00. So our "guess" is $6.00.

     

    However, remember we were $.03 off on each item, so we need to correct for that. So, how much are we off? Exactly 5[math]\cdot[/math]$.03 = $.15. Thus, we will pay $6.00 - $.15 = $5.85.

  17. When you look at a calculus equation what do you see?
    This is going to be rather unenlightening, but unless the equation is of some surface or function that I'm familiar with, I just see the equation, same as you.

     

    Do you see a series of approximations of the real world.
    I don't. It would be cool if people who studied Mathematics had "Math-O-Vision", a la Numb3rs, though.

     

    I was wondering ,when you read a calculus equation do you picture spheres being intersected by planes and lines folding out to becomes planes and then extruding to become blocks.
    Nope. Not me anyways.

     

    Or is it more like solving a crossword puzzle using learned methods?
    Yup. When I see a problem (in the ideal case), pattern recognition kicks in, and the relevant techniques to solve the problem are recalled from the recalled from the dark recesses of my mind.

     

    Of course, when one is working out a proof, this process takes a lot longer than a few moments. For example, a single proof of what I consider to be average difficulty will take me about 15 - 45 minutes of straight thinking, nothing else mind you, just sitting there, trying to get the idea for the proof. However, this is the single most difficult part.

  18. I'll take a shot at it.

    The poor are genetically inferior. They remain poor' date=' numbers dwindle, the rich become Spliced and fully dominant, and their livelihood becomes protected to maintain the order of the higher class Spliced people. Eventually ... Everyone is happy.[/quote']I wonder how many lifetimes will pass between the onset of this hypothesized trend and the "everyone is happy" stage.

     

    Put another way, if you were poor, but told that "eventually the human race will be better off by getting rid of the poor", would it make your life, or your descendant's lives any better?

     

    They remain poor, numbers dwindle,
    It may just be the pessimist in me, but if the above scenario were to occur, I would think that the poor would be used as cheap slave labor, since they would most likely be significantly cheaper that robots. Thus, since the rich actually have a vested economic interest in keeping the poor around, the poor are never eliminated from society, and the "everyone is happy" stage is never attained.

     

    EDIT:

     

    Regarding the poll, I voted "Yes", however, I think that the poll should distinguish between therapeutic and cosmetic genetic modifications.

     

    For example, if parents knew that their child would be born with cystic fibrosis unless genetic modifications were made, I doubt that many of the forumites would disapprove of such a procedure, if the potential errors/side effects of the treatment were fairly mild, or had a relatively small probability of occurring.

     

    However, one might question the motives of parents who elect for cosmetic modifications such as hair and eye color, since, as with any medical procedure, there is a non-negligible probability of a serious error occurring.

     

    In short, I voted 'Yes' because of the first reason, and I would never approve cosmetic genetic modifications for any future unborn child of mine. However, I don't think it is my place to tell other parents what kind of elective surgery their child can have. As long as it is approved by a qualified medical professional, they should be able to do as they wish.

  19. Ok i've attatched the shapes. Now what that is, is a square with 4 1/4 circles going through it. The aim is to find the shaded area and we know that the sides of the square are 10cm. Good Luck.
    We could use Calculus techniques to compute the area, but I don't suppose that you want us to use them, right?
  20. but arn't we tring to prove an<=bn?
    Nope, we're trying to prove that [math]a \leq b[/math].

     

    Suppose you wish to prove something of the form [math]a\implies b[/math] (in your problem, [math]a[/math] is "[math]\lim_{n\to \infty}a_n = a[/math], [math]\lim_{n\to \infty}b_n = b[/math], and that [math]\forall n \in \mathbb{Z},[/math][math] a_n \leq b_n[/math]", and [math]b[/math] is "[math] a \leq b[/math]").

     

    Proofs by contradiction 'assume' that [math]\neg (a \implies b)[/math] is true, which is equivalent to assuming that [math]a \wedge \neg b[/math] is true (I use the [math]\neg[/math] symbol for 'not', and [math]\wedge[/math] for 'and'.). Thus, if by assuming [math]a[/math] is true and [math]b[/math] is false, we can show that [math]a \wedge \neg b[/math] is false, then that implies that [math]\neg (a \implies b)[/math] is false, which means that [math]a \implies b[/math] is true, which is what we originally wanted.

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