What is Value: Definition and 1000 Discussions

In ethics, value denotes the degree of importance of some thing or action, with the aim of determining what actions are best to do or what way is best to live (normative ethics), or to describe the significance of different actions. Value systems are prospective and prescriptive beliefs; they affect ethical behavior of a person or are the basis of their intentional activities. Often primary values are strong and secondary values are suitable for changes. What makes an action valuable may in turn depend on the ethical values of the objects it increases, decreases or alters. An object with "ethic value" may be termed an "ethic or philosophic good" (noun sense).Values can be defined as broad preferences concerning appropriate courses of actions or outcomes. As such, values reflect a person's sense of right and wrong or what "ought" to be. "Equal rights for all", "Excellence deserves admiration", and "People should be treated with respect and dignity" are representatives of values. Values tend to influence attitudes and behavior and these types include ethical/moral values, doctrinal/ideological (religious, political) values, social values, and aesthetic values. It is debated whether some values that are not clearly physiologically determined, such as altruism, are intrinsic, and whether some, such as acquisitiveness, should be classified as vices or virtues.

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  1. I

    Self-adjoint boundary value (Sturm-Liouville)

    Homework Statement Under what condition on the constant ##c## and ##c'## are the boundary conditions ##f(b) = cf(a)## and ##f'(b)=c'f'(a)## self-adjoint for the operator ##L(f) = (rf')'+pf## on ##[a,b]##? (Assume that ##r,p## are real.) Homework Equations The boundary conditions are...
  2. M

    Find value of K for differential equation to be exact

    Homework Statement Hello everyone, I need to find K for the following differential equation to be exact. (y3+kxy4-2*x)dx +(3xy2 +20x2y3)dy=0 Homework EquationsThe Attempt at a Solution (y3+kxy4-2*x)dx +(3xy2 +20x2y3)dy=0 dM/dy = d/dy(y3+kxy4-2*x) = 4*k*y3*x+3*y2 dN/dx =d/dx(3xy2 +20x2y3) =...
  3. G

    The value of theory in biology

    Hi folks, I'm a new graduate student in biology. I'm interested in doing theory (either simulations of biomolecules, physical models of the brain/consciousness, or models of cellular dynamics). I have had very intriguing discussions with fellow students along the following lines: 1. There are...
  4. P

    Find minimum value for coefficient of static friction

    Homework Statement Homework Equations Newton's 2nd Law The Attempt at a Solution I was wondering if anyone could verify that I have all the correct vectors or if I am missing any. I just wanted to check before I started trying to derive the equations. [/B]
  5. chwala

    Find the n value of a function

    1. Given a curve y= x^n, where n is an integer. If the curve passes between the points (2,200) and (2,2000), determine the values of nHomework EquationsThe Attempt at a Solution the n value by trial and error can be 2^8=256 2^9=512 and 2^10=1024. The correct answer to this problem is n=9...
  6. ognik

    MHB Is <L^2> always greater than or equal to 0 for a Hermitian operator?

    I'm given an operator $\mathcal{L}$ is Hermitian, and asked to show $<\mathcal{L}^2>$ is $\ge 0$ I believe $<\mathcal{L}>$ is the expectation value, $=\int_{}^{}\Psi^* \mathcal{L} \Psi \,d\tau $ (Side issue: I am not sure what $d\tau $ is, perhaps a small region of space? And the interval?) I...
  7. J

    How can the absolute value of x be negative?

    Homework Statement http://imgur.com/RlIdmFh http://imgur.com/3dnLK3m Homework Equations |x| = -x? The Attempt at a Solution I'm trying to make sense of this definition in my book because they are trying to prove the triangle inequality(second link), yet it keeps saying that the absolute value...
  8. Fancypen

    What are the rules to know when to use absolute value?

    Specifically when doing integration problems. I know the indef integral of cosx/sinx+1 is ln(sinx+1) + C, but absvalue is not required here. I think it's because the sine fn must be >= 0 or it's undefined? What about in other cases, is there a general rule to know when to use absvalue? Thanks
  9. B

    Why is the absolute value of 16 not equal to 4?

    If ##\sqrt{x^2} = |x|##, why ##\sqrt{16} ≠ |4|## instead of 4 (please see below image)?
  10. A

    Finding largest value of H of a ramp, from a FBD

    Homework Statement The dimension h is to be determined to that a worker can comfortably slides boxes weighing up to 106 lb up and down a frictionless incline. If the worker can apply a 50 lb horizontal force to the box, what is the largest value h should have? Hint given: Before taking any...
  11. barryj

    How to solve absolute value equation with two absolute values

    How does one solve an equation with two absolute value functions as below My algebra book does not show how to solve with two abs functions. 2|4x-1| = 3|4x+2| I thought this might work.. |4x-1|/|4x+2| = 3/2 then |(4x-1)/(4x+2)| = 3/2 and solve the normal way..
  12. E

    MHB Solving a system of linear equations with one unknown value

    Determine the values of a for which the following system of linear equations has no solutions, a unique solution, or infinitely many solutions. You can select 'always', 'never', 'a = ', or 'a ≠', then specify a value or comma-separated list of values. 3x1+6x2 = −6 3x1+9x2−6x3 = −12...
  13. J

    Difficulty computing second derivative value in SHM problem

    Homework Statement The displacement of a machine is given by the simple harmonic motion as x(t) = 5cos(30t)+4sin(30t). Find the amplitude of motion, and the amplitude of the velocity. Homework Equations x''(t) = -4500cos(30t)-3600sin(30t) The Attempt at a Solution [/B] I should note that...
  14. I

    Value of Fourier Series from Two Equations

    Homework Statement Derive ##\sum_{n=1}^\infty \frac{1}{n^2+b^2} = \frac{\pi}{2b}\coth b\pi - \frac{1}{2b^2}## from either ##e^{b\theta} = \frac{e^{2\pi b}-1}{2\pi} \sum_{-\infty}^\infty \frac{e^{in\theta}}{b-in}## for ##0 < \theta < 2\pi##. or ##e^{b\theta} = \frac{\sinh...
  15. 24forChromium

    Converting R-Value to Percent Uncertainty in Linear Regression Predictions

    I just need a quick answer, say I have a bunch of data points on a graph, I made a trendline with a function of y = 5x + 6, and a r value of R^2 = 3, is there a way of converting the r value into a percent uncertainty in the prediction of the functions? Say I used the function to predict when x...
  16. bcrowell

    Insights Why Does C Have a Particular Value, and Can It Change? - Comments

    bcrowell submitted a new PF Insights post Why Does C Have a Particular Value, and Can It Change? Continue reading the Original PF Insights Post.
  17. P

    What Is the Expected First-Passage Time in a Markov Chain?

    Homework Statement Markov process has probabilities p_{j,j+1} = 1-p_{j,0} = (\frac{j+1}{j+2})^k for j=0,1,2,... If T_j = min[n>1 : X_n=j] What is E[T(j)|X_0=j] for j=0,1,2,...? Homework EquationsThe Attempt at a Solution I figured that T(j)|X_0=j is j+1 but don't know how to work out the...
  18. B

    Find Expected Value for p - Can You Suggest a Quicker Way?

    I have done a lot of counts but I'm sure that there will be a quicker way.. Can you suggest me? I have followed the way ##\bar{p}=-i \hbar\int \psi(x)* \cdot \frac{\partial}{\partial x} \psi(x) \ dx##... Can I follow a quicker way?
  19. G

    MHB Sketching absolute value graph

    Sketch the region in the plane consisting of all points (x,y) such that |x-y|+|x|-|y|<=2
  20. C

    Where is the Local Maximum for y = (8/5)sin(t) + (4/5)cos(t) - (9/5)e^(-t/2)?

    Homework Statement y=(8/5)sint + (4/5) cost - (9/5)e^(-t/2) find its local max Homework EquationsThe Attempt at a Solution i have differentiated it and found out dy/dx, in order to find the local max, i have to find out the value t when dy/dx=0 but i can't solve this equation
  21. anemone

    MHB Find Min Value of $a^2+b^2+c^2+d^2+(a+b+c+d)^2$ w/ Given Constraint

    Find the minimum of $a^2+b^2+c^2+d^2+(a+b+c+d)^2$ given $a+2b+3d+4d=1$ for all real $a,\,b,\,c$ and $d$.
  22. E

    Alternating current peak value

    Homework Statement If the peak values of current through inductor (L), capacitor (C) and resistor (R) in parallel AC circuit are 2mA, 3mA, and 5mA respectively, then the peak value of current delivered by the source in the same circuit will be Homework EquationsThe Attempt at a Solution i (R)...
  23. RyanH42

    LCDM Model best value of ##Ω_k##

    Whats the best value of ##Ω_k## (Considering Planck 2015 results).I asked best value cause If you think our universe can be also hyperbolic so ##Ω_k## can be different then 1. I remember the relationship between ##Ω_k## and k is ##Ω_k=-k/a(t)h^2## or some sort of something like that.k is zero I...
  24. Kingyou123

    Determine the value of a decay constant

    Homework Statement What's up guys, I'm stuck on #2 of this worksheet,http://luc.edu/faculty/dslavsk/courses/phys111/homework/phys111-2015hw1.pdf The half - life of C - 14 is 5730 years. Determine the value of its decay constant (and express the answer in appropriate MKS units). 2.The attempt...
  25. N

    Is f(x) a function or a value?

    I have joined to ask a question of : is f(x) a function or a value?
  26. Einstein's Cat

    Is Infinity Divided by Infinity Equal to 1?

    Is infinity divided by infinity equal to 1? 6 divided by 6 is equal to 1 however as infinity resembles 0 in the sense that 0 dived by 0 is equal to 0, I am uncertain whether infinity divided by infinity would equal 1 or instead, infinity.
  27. P

    The expected value of the square of the sample mean?

    Homework Statement In my notes I keep stumbling upon this equation: Equation 1: E(X-bar^2) = (σ^2)/n + μ^2 I was wondering why the above equation is true and how it is derived.The Attempt at a Solution E(X-bar^2) ##Summations are from i/j=1 to n = E[(Σx_i/n)^2)] = E[(Σx_i/n)(Σx_j/n)]...
  28. BubblesAreUs

    Finding the two closest values of a given value

    Homework Statement Say, I was given a list, i.e. [1, 3, 7, 9, 12, 15, 24] Now I'd like to find two values closest to an input ( say, x) so that I can produce an interval ( f(a), f(b)). This interval would be used in an IVT problem where the intervals will be be part of [a,b] and will be...
  29. Titan97

    Question on Mean Value Theorem & Intermediate Value Theorem

    Homework Statement for ##0<\alpha,\beta<2##, prove that ##\int_0^4f(t)dt=2[\alpha f(\alpha)+\beta f(\beta)]## Homework Equations Mean value theorem: ##f'(c)=\frac{f(b)-f(a)}{b-a}## The Attempt at a Solution I got the answer for the question but I have made an assumption but I don't know if...
  30. P

    Intermediate value theorem

    Suppose that ##f## is continuous on ##[a,b]## and let ##M## be any number between ##f(a)## and ##f(b)##. Then, there exists a number ##c## (at least one) such that: ##a < c < b## and ##f(c) = M## Why did the author restrict ##c## to ##(a,b)## rather than ##[a,b]##? After all, ##c ∈ [a,b] ⇒ c ∈...
  31. Stephanus

    The biggest value for sin(x)/x

    Dear PF Forum, Finally I have written a simple software to plot Sin(X) It can also draw y = sin(x) + cos(x). But I don't know how to use this function in real life. This software is very simple. All you need to do is altering this short function case FDrawMode of 0...
  32. J

    Can a 0.33 Farad 5 Volt Supercapacitor Charge a 3.7V 2000mAh Mobile Battery?

    I am using RF energy harvester circuit to charge mobile in my project.The rectification part is done by Villard Voltage multiplier circuit .I need to used a supercapacitor to store the harvested energy .As the battery rating of the mobile phone is 3.7V and 2000mAh.So can i use 0.33 Farad 5 Volt...
  33. Titan97

    Question on Mean Value Theorem

    Homework Statement Let ###f## be double differentiable function such that ##|f''(x)|\le 1## for all ##x\in [0,1]##. If f(0)=f(1), then, A)##|f(x)|>1## B)##|f(x)|<1## C)##|f'(x)|>1## D)##|f'(x)|<1## Homework Equations MVT: $$f'(c)=\frac{f(b)-f(a)}{b-a}$$ The Attempt at a Solution I first tried...
  34. M

    Value of studying number theory?

    It seems that no matter how unrelated two subjects of mathematics appear to be, there are always ways to use techniques from one area of math and use it to prove many useful results in the other, and vice versa. However, from my (inexperienced) point of view, number theory seems to be the only...
  35. B

    How Do You Apply ζ in an Initial Value Problem When Using Laplace Transform?

    hi, if there is a initial value problem with a ζ in it with specified values what do you do with it when taking the laplace transform?
  36. Stephanus

    What is the mathematical proof behind the value of Pi?

    Dear PF FOrum, I have a question about Pi. In some Youtube videos, they explain why the volume of a sphere is so,... Why the area of a sphere is so,... Why the area of a circle is so,... All are good explanations, with or without differential. But I can't find the proof why Pi is 3.14. I have...
  37. anemone

    MHB Min Value of $\dfrac{x}{y}-\dfrac{123}{2014}$: $\dfrac{1}{3792362}$

    If $x,\,y$ are positive integers with $y<2014$, show that the minimal value of $\left|\dfrac{x}{y}-\dfrac{123}{2014}\right|$ is $\dfrac{1}{3792362}$.
  38. Rectifier

    Tan() -- calculate the exact value w/o a calculator

    The problem I have the triangle ABC where ∠C is 90°. The side AC is ## \sqrt{3} \ cm ## and the side BC is 1 cm. What is ∠A (α)? The attempt $$tan(a) = \frac{1}{\sqrt{3}}$$ The problem is that I have to calculate the exact value of α without any calculator. I tried to calculate the third...
  39. C

    Does the Intermediate Value Theorem Allow a Zero Value in a Non-Zero Interval?

    Hi, I'm confused about an explanation in Elementary Calculus, the infinitesimal approach regarding Intermediate Value Theorem. The explanation: Suppose g is a continuous function on an inverval I, and g(x) # 0 for all x in I (i) If g(c) > 0 for at least one c in I, then g(x) > 0 for all X in...
  40. RLewis42

    Value of composite metal beams?

    It has been my understanding when working with natural wood beams/joists, that for example, two 2x12 members over a 12' span gain significant strength when they are fastened (nailed, glued or both) together rather than just lying side by side touching one another. Is this phenomenon...
  41. O

    MHB Find the value of k for the following system to have no solutions etc?

    Find the values of k , if any, for which the following system of equations has i) no solutions, ii) infinitely many solutions and iii) a unique solution. Solve and find the unique solution. (k+1)*(X1) + 3*(X2) - (X3) =22 2*(X1) + K*(X2) + (X3) =14 (X1) + 4*(X2) + (X3) =20
  42. Albert1

    MHB Find the Minimum Value of a Complex Equation

    $a>1,b>1$ find the minimum value of $\dfrac {a^2}{b-1}+\dfrac {b^2}{a-1}$
  43. A

    Mean value with respect to a function f

    Homework Statement I wanted to ask anyone willing to check my proofs to two problems, so that I may know if I am making any mistakes or assumptions. Let the function f be continuous and strictly monotonic on the positive real axis and let g denote the inverse of f. If a_1\lt a_2\lt...\lt a_n...
  44. NanaToru

    Mean Value Theorem/Rolle's Theorem and differentiability

    Homework Statement Let f(x) = 1 - x2/3. Show that f(-1) = f(1) but there is no number c in (-1,1) such that f'(c) = 0. Why does this not contradict Rolle's Theorem? Homework EquationsThe Attempt at a Solution f(x) = 1 - x2/3. f(-1) = 1 - 1 = 0 f(1) = 1 - 1 = 0 f' = 2/3 x -1/3. I don't...
  45. J

    Luminous emittance vs value recorded on image sensor

    Assume that I have a light bulb with luminous emittance of 160000lux (16ev), and a gray wall with luminous emittance of 300lux (7ev). I take the photo of this bulb and this background. Is there any approximate formula to estimate the gray level or RGB value of the bulb and the background in the...
  46. Destroxia

    2nd Order Homogeneous, Real Roots, Initial Value

    Homework Statement Solve the initial value problem Homework Equations Quadratic Formula The Attempt at a Solution My problem is that I don't understand how to solve the constants now, I understand, 2 equations, 2 unknowns, but when I plug the y(0) = 0 into the YsubH equation...
  47. andyrk

    Mean Value Theorem for Definite Integrals

    In the MVT for Integrals: ##f(c)(b-a)=\int_a^bf(x)dx##, why does ##f(x)## have to be continuous in ##[a,b]##.
  48. R

    Value of Charge Q: Why Use Distance not Radius?

    Homework Statement this is problem 1.4 from purcells electricity and magnetism 2nd edition. Two volleyballs, mass 0.3 kg each, tethered by nylon strings and charged by an electrostatic generator, hang as shown in the diagram...
  49. mss90

    Value of n for the energy level transition that produce lamb

    Homework Statement A wavelenght of 410.2*10^-9m is emitted by the hydrogen atom in a high voltage discharge tube. what are the initial and final values of the quantum number n for the energy lvl transition that produces this wavelength? Homework Equations 1/(lambda) = R * (1/2^2 - 1/n^2)...
  50. C

    What is the value addition of GR?

    What are the value additions of GR ? What does it give more than "SR + Newtonian Gravity" gave? Just want to see if someone has listed the same. I understand it gives a beautiful framework/idea for defining geometry of space time based on mass+energy sources and drafting law of motion of...
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