3 evaluation of cardiac function
Tài liệu Báo cáo khoa học: Neuronal growth-inhibitory factor (metallothionein-3): evaluation of the biological function of growth-inhibitory factor in the injured and neurodegenerative brain pdf
... Potential role of metal-binding/exchange properties of GIF in AD One of the primary pathological hallmarks of AD is the formation of b-amyloid (Ab) plaques, composed primarily of Ab(1–40) and ... nucleophil, because of its high cysteine content, enabling it to efficiently bind reactive ROS [29] Function of GIF in injured and degenerative brain MT can function as a potent scavenger of hydrogen ... survival of cultured cortical neurons [31] The neuroinhibitory action of GIF is very specific to this MT isoform and can be attributed to the small differences in the protein sequence of this isoform...
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Báo cáo khoa học: Re-evaluation of the function of the F420dehydrogenase in electron transport ofMethanosarcina mazei potx
... impaired transfer of electrons onto FpoF Further studies will indicate which of the Methanosarcina Fd proteins function as natural electron carriers Localization and dual function of FpoF As a prerequisite ... parameters of the reaction exhibited a maximal velocity (Vmax) of 225 mUặmg)1 of protein and KM values of and 0.5 lm for F420 and Fdred, respectively (Fig 3) The relatively low activity of puried FpoF ... about 76 ngặlL)1 of membrane preparation could be identied as FpoF and about ng of FpoF could be detected per lL of cytoplasm Taking into account the protein concentrations of these preparations...
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Báo cáo khoa học: "Comparison of cardiac function and coronary angiography between conventional pigs and micropigs as measured by multidetector row computed tomography" docx
... that compared the cardiac function between the two strains using echocardiography and radiography [22] In previous evaluations of cardiac function, MDCT with a temporal resolution of 125-250 ms was ... Measures of cardiac function should be carried out using modalities that provide quick, noninvasive images with superior temporal and spatial resolution To date, 124 Young Keun Ahn et al cardiac functional ... measure cardiac function in individual micropigs used for heart transplantation for purposes of diagnosis and prognosis The indices of a healthy heart are verified through assessment of ejection...
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Quantitative evaluation of motor function before and after engraftment of dopaminergic neurons in a rat model of Parkinson''''s disease ppt
... is a measure of the surface area of maximal contact of the paw with the ground (pixel2) Phase dispersion This parameter is a measure of the temporal relationship between placement of two paws ... print area of paw contact in the affected limbs This was most likely due to the rigidity of muscle tone and altered use of paw surface The intensity and contact area of the unaffected paws of 6-OHDA-lesioned ... base -of- support (BOS) [11] The base-ofsupport of the hind limbs was shown to increase by up to Chuang et al Journal of Biomedical Science 2010, 17:9 http://www.jbiomedsci.com/content/17/1/9 Page of...
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Tài liệu Evaluation of Functions part 3 pptx
... λan+1 (5.2.11) leaves the value of a continued fraction unchanged By a suitable choice of the scale factor λ you can often simplify the form of the a’s and the b’s Of course, you can carry out successive ... that gives a means of evaluating (5.2.1) or (5.2.2) from left to right Let fn denote the result of evaluating (5.2.2) with coefficients through an and bn Then 5.2 Evaluation of Continued Fractions ... Jones [7] gives a list of theorems that can be used to justify this termination criterion for various kinds of continued fractions There is at present no rigorous analysis of error propagation...
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Tài liệu Evaluation of Functions part 2 doc
... large x Accelerating the Convergence of Series There are several tricks for accelerating the rate of convergence of a series (or, equivalently, of a sequence of partial sums) These tricks will ... examples are the sine function and the Bessel function of the first kind, 167 5.1 Series and Their Convergence number n − of terms directly, then apply the transformation to the rest of the series beginning ... Mathematical Methods of Physics, 2nd ed (Reading, MA: W.A Benjamin/Addison-Wesley), §2.3 [2] 5.2 Evaluation of Continued Fractions Continued fractions are often powerful ways of evaluating functions that...
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Tài liệu Evaluation of Functions part 11 pdf
... Mathematical Association of America), pp 59, 182–183 [synthetic division] 5.11 Economization of Power Series One particular application of Chebyshev methods, the economization of power series, is ... is an occasionally useful technique, with a flavor of getting something for nothing Suppose that you are already computing a function by the use of a convergent power series, for example f (x) ≡ ... number of terms, using the coefficient of the first neglected Chebyshev polynomial as an estimate of the error Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)...
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Tài liệu Evaluation of Functions part 12 doc
... Inverse of routine chebpc: given an array of polynomial coefficients d[0 n-1], returns an equivalent array of Chebyshev coefficients c[0 n-1] { int j,jm,jp,k; float fac,pow; pow=1.0; Will be powers of ... approximation in the interval of interest, by the methods of §5.8 We would have obtained just the same lower-order polynomial The principal lesson is that the rate of convergence of Chebyshev coefficients ... has nothing to with the rate of convergence of power series coefficients; and it is the former that dictates the number of terms needed in a polynomial approximation A function might have a divergent...
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Tài liệu Evaluation of Functions part 4 pptx
... polynomial of degree n − (array of range [0 n-1]) by a monomial factor x − a by a bit of code like the following, 176 Chapter Evaluation of Functions Rational Functions You evaluate a rational function ... standard function available for doing the evaluation: double ratval(double x, double cof[], int mm, int kk) Given mm, kk, and cof[0 mm+kk], evaluate and return the rational function (cof[0] + cof[1]x ... + · · · + cof[mm]xmm )/(1 + cof[mm+1]x + · · · + cof[mm+kk]xkk ) { int j; double sumd,sumn; Note precision! Change to float if desired for (sumn=cof[mm],j=mm-1;j>=0;j ) sumn=sumn*x+cof[j]; for...
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Tài liệu Evaluation of Functions part 5 doc
... vol of The Art of Computer Programming (Reading, MA: Addison-Wesley) [see solutions to exercises 4.2.1.16 and 4.6.4.41] 5.5 Recurrence Relations and Clenshaw’s Recurrence Formula Many useful functions ... sin nθ = cos θ sin(n − 1)θ − sin(n − 2)θ (5.5.5) where the first three functions are Legendre polynomials, Bessel functions of the first kind, and exponential integrals, respectively (For notation ... 1988-1992 by Numerical Recipes Software Permission is granted for internet users to make one paper copy for their own personal use Further reproduction, or any copying of machinereadable files (including...
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Tài liệu Evaluation of Functions part 5 ppt
... expansion of a function, solve the linear Pad´ equations to return the coefficients of a diagonal rational function approximation to e the same function, namely (cof[0] + cof[1]x + · · · + cof[n]xN ... , which itself has n + extrema of equal magnitude and alternating sign So, here, the number of rational coefficients, m + k + 1, plays the same role of the number of polynomial coefficients, n + ... economization of power series (§5.11) that only condense the information that you already know about a function, Pad´ approximants can give you genuinely new information about your function s e...
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Tài liệu Evaluation of Functions part 14 ppt
... u=dmatrix(1,npt,1,ncof); v=dmatrix(1,ncof,1,ncof); w=dvector(1,ncof); wt=dvector(1,npt); Number of points where function is evaluated, i.e., fineness of the mesh Sample page from NUMERICAL RECIPES IN C: THE ART OF ... versions of svdcmp, svbksb int i,it,j,ncof,npt; double devmax,e,hth,power,sum,*bb,*coff,*ee,*fs,**u,**v,*w,*wt,*xs; ncof=mm+kk+1; npt=NPFAC*ncof; bb=dvector(1,npt); coff=dvector(0,ncof-1); ee=dvector(1,npt); ... free_dmatrix(v,1,ncof,1,ncof); free_dmatrix(u,1,npt,1,ncof); free_dvector(fs,1,npt); free_dvector(ee,1,npt); free_dvector(coff,0,ncof-1); free_dvector(bb,1,npt); 208 Chapter Evaluation of Functions Figure...
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Tài liệu Evaluation of Functions part 15 ppt
... America) example, the complex Bessel function, Airy function, Coulomb wave function, and Weber function are all special cases of the confluent hypergeometric function, with a differential equation ... wish to keep open the possibility of altering this choice for some applications Our golden brick consists of a collection of routines for the integration of sets of ordinary differential equations, ... discontinuous function values, and will likely not converge correctly!) In any case, be aware that a loss of numerical accuracy can result if you integrate through a region of large function value...
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Tài liệu Evaluation of Functions part 6 pptx
... relation is of little or no practical use in that direction This is the case, e.g., for (5.5.2) in the direction of increasing n, when x < n You cannot generate Bessel functions of high n by ... possible formulas, of course Given a recurrence relation for some function fn (x) you can test it yourself with about five minutes of (human) labor: For a fixed x in your range of interest, start ... solution of the recurrence If you know that the function that you want actually corresponds to the growing solution, then you can keep the recurrence formula anyway e.g., the case of the Bessel function...
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Tài liệu Evaluation of Functions part 7 ppt
... both to minimize roundoff error, and also (as pointed out by A.J Glassman) to ensure that no choice of branch for the complex cube root can result in the spurious loss of a distinct root If you ... f(x + h) − f(x) = f + hf + · · · h (5.7.3) The roundoff error has various contributions First there is roundoff error in h: Suppose, by way of an example, that you are at a point x = 10.3 and ... to call a dummy function donothing(temp) between the two equations (5.7.4) This forces temp into and out of addressable memory Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING...
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Tài liệu Evaluation of Functions part 8 doc
... scale” of the function f, or “characteristic scale” over which it changes In the absence of any other information, one often assumes xc = x (except near x = where some other estimate of the typical ... free_matrix(a,1,NTAB,1,NTAB); return ans; } In dfridr, the number of evaluations of func is typically to 12, but is allowed to be as great as 2×NTAB As a function of input h, it is typical for the accuracy to get ... using an additional number nL of points to the left and some number nR of points to the right of each desired x value The estimated derivative is then the derivative of the resulting fitted polynomial...
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Tài liệu Evaluation of Functions part 9 docx
... degree of approximation (length of c to be used), this routine returns the array cint[0 n-1], the Chebyshev coefficients of the integral of the function whose coefficients are c The constant of integration ... given n, the desired degree of approximation (length of c to be used), this routine returns the array cder[0 n-1], the Chebyshev coefficients of the derivative of the function whose coefficients are ... x equal to all of the N zeros of TN (x) For a fixed N , equation (5.8.8) is a polynomial in x which approximates the function f(x) in the interval [−1, 1] (where all the zeros of TN (x) are located)...
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Tài liệu Evaluation of Functions part 10 pptx
... quadrature [1] It is often combined with an adaptive choice of N , the number of Chebyshev coefficients calculated via equation (5.8.7), which is also the number of function evaluations of f (x) If a ... Evaluation of Functions Accumulates the constant of integration Will equal ±1 sum += fac*cint[j]; fac = -fac; } cint[n-1]=con*c[n-2]/(n-1); sum += fac*cint[n-1]; cint[0]=2.0*sum; Special case of (5.9.1) ... half of the new function evaluation points are identical to the old ones, allowing the previous function evaluations to be reused This feature, plus the analytic weights and abscissas (cosine functions...
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Báo cáo sinh học: " Improvement of cardiac contractile function by peptide-based inhibition of NF-B in the utrophin/dystrophin-deficient murine model of muscular dystrophy" potx
... beyond the scope of this end-point driven study Discussion Cardiac contractile dysfunction is one of the leading causes of death in DMD Clinical treatment of this debilitating aspect of DMD is paramount ... improvement of contractile function The underlying cause of weakened contractile performance of the end-stage heart failing myocardium is often independent of the originating cause of heart failure ... (Figure 6A) in the hearts of most of dko mice in this study regardless of treatment (5 of [71%] NBD treated mice, versus of Figure NBD is effective in inhibiting NF-B in cardiac muscles from dko...
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