... transformation of the dependent variable yi For transformations of the dependent variable yi (e.g., the logarithmic or logit transformation), β then becomes a relative-risk (logarithmic transformation) ... lung cancer incidence, given that incidence ratios are decreasing for some comparisons (e.g., black vs white males) but increasing for others (e.g., Asian/Pacific Islander to American Indian/Alaska ... the last decade, focus on and efforts to promote population health data for major ethnic groups have increased Ten-year trends now are available for some groups For subgroups within major racial/ethnic...
Ngày tải lên: 06/03/2014, 01:20
... expressed in a text can be inferred from the information expressed in another text, can be performed in four ways We can try to (1) derive linguistic information from the pair of texts, and cast ... paraphrases were considered as phraselevel alternations for an example, extracted sentences were clustered using complete-link clustering using a technique proposed in (Barzilay and Lee, 2003) ... Q/A systems with the forms of semantic inference needed to perform accurate answer validation While probabilistic or web-based methods for answer validation have been previously explored in the...
Ngày tải lên: 08/03/2014, 02:21
stochastic methods for physics using java an introduction - petruccione p. biechele
... exercises C.1 Solutions for Chapter C.2 Solutions for Chapter C.3 Solutions for Chapter C.4 Solutions for Chapter C.5 Solutions for Chapter C.6 Solutions for Chapter C.7 Solutions for Chapter ... certain disadvantages, which should not be forgotten to mention: The learning curve is certainly steeper for the beginner for Java than for Matlab or even Fortran This is of course due to the full ... method for the conversion For that reason Java has so called wrapper classes, subclasses of the java.lang.Number class for all primitive data types These classes provide all the necessary methods for...
Ngày tải lên: 08/04/2014, 12:26
Quantitative Methods for Business chapter 8 potx
... Laspeyre price indices for 2002 and 2003 using 2001 as the base period 278 Quantitative methods for business 8.7 (b) Calculate Paasche price indices for 2002 and 2003 using 2001 as the base ... indices for 2000 and 2003 using 1997 as the base year (b) Compile Paasche price indices for 2000 and 2003 using 1997 as the base year (c) Compare your results for (a) and (b) suggesting reasons for ... Click in cell A7 then click in the formula bar Type ϭ IRR(A1:A6) in the formula bar then click the green tick to the left of the formula bar 274 Quantitative methods for business Chapter A B C Ϫ120000...
Ngày tải lên: 06/07/2014, 00:20
Quantitative Methods for Ecology and Evolutionary Biology (Cambridge, 2006) - Chapter 8 docx
... extinction (c) For a two dimensional dynamical system of the form dX/dt ¼ f(X, Y ), dY/dt ¼ g(X, Y ) the situation can be more complicated If a steady state is an unstable node, for example, then ... population ‘‘open’’ to immigration from another life history stage For example, Peters et al (1989) use the explicit form l(n) ¼ a(n þ )eÀcn for which l(0) ¼ a In general, we conclude that p(1) ¼ [l(0)/(1)]p(0) ... pðnÞ ¼ 1, which can be done only after we specify the functional forms for the birth and death rates, and we will that only after we formulate the general answers to questions (2) and (3) On to the...
Ngày tải lên: 06/07/2014, 13:20
Advanced Mathematical Methods for Scientists and Engineers Episode 1 Part 8 ppt
... either z → or z → ∞ We will derive the formula for the complex variable logarithm For now, let ln(x) denote the real variable logarithm that is defined for positive real numbers Consider w = log ... Cartesian form and z = r eıθ in polar form eu+ıv = r eıθ We equate the modulus and argument of this expression eu = r u = ln r v = θ + 2πn v = θ + 2πn With log z = u + ıv, we have a formula for the ... cosh y + ı cos x sinh y For fixed y, the sine and cosine are oscillatory in x The amplitude of the oscillations grows with increasing |y| See Figure 7.18 and Figure 7.19 for plots of the real and...
Ngày tải lên: 06/08/2014, 01:21
Advanced Mathematical Methods for Scientists and Engineers Episode 2 Part 8 pot
... Sine and Cosine Example 13.9.1 For real-valued a, evaluate the integral: 2π f (a) = dθ + a sin θ What is the value of the integral for complex-valued a Real-Valued a For −1 < a < 1, the integrand ... exists For |a| = 1, the integrand has a second order pole on the path of integration For |a| > the integrand has two first order poles on the path of integration The integral is divergent for these ... the integral converges except for real-valued a satisfying |a| ≥ On any closed subset of C \ {a ∈ R | |a| ≥ 1} the integral is uniformly convergent Thus except for the values {a ∈ R | |a| ≥ 1},...
Ngày tải lên: 06/08/2014, 01:21
Advanced Mathematical Methods for Scientists and Engineers Episode 3 Part 8 ppsx
... form G(x|ξ) = c1 + c2 x d1 + d2 x for x < ξ for x > ξ Applying the two boundary conditions, we see that c1 = and d1 = −d2 The Green function now has the form G(x|ξ) = cx d(x − 1) for x < ξ for ... e−x for x < ξ for x > ξ Since the solution must be bounded for all x, the Green function must also be bounded Thus c2 = d1 = The Green function now has the form c ex for x < ξ G(x|ξ) = −x de for ... = H(x) = −∞ for x < for x > The integral of the Heaviside function is the ramp function, r(x) x H(t) dt = r(x) = −∞ x for x < for x > The derivative of the delta function is zero for x = At x...
Ngày tải lên: 06/08/2014, 01:21
Advanced Mathematical Methods for Scientists and Engineers Episode 4 Part 8 potx
... Transform 31.1 The Laplace Transform The Laplace transform of the function f (t) is defined ∞ e−st f (t) dt, L[f (t)] = for all values of s for which the integral exists The Laplace transform ... transform as the integral diverges Example 31.1.1 Consider the Laplace transform of f (t) = Since f (t) = is of exponential order α for any α > 0, the Laplace transform integral converges for ... all τ > T (x, ) c The sum is uniformly convergent if T is independent of x Similar to the Weierstrass M-test for infinite sums we have a uniform convergence test for integrals If there exists ∞...
Ngày tải lên: 06/08/2014, 01:21
Advanced Mathematical Methods for Scientists and Engineers Episode 5 Part 8 doc
... t) for x > as it depends on α(ξ) only for ξ > The constant k is arbitrary Changing k does not change u(x, t) For simplicity, we take k = u(x, t) = β(x − ct) u(x, t) = for x − ct < γ(t − x/c) for ... 0) = −1 for − < x < for |x| > Exercise 41.3 Consider the solution of the wave equation for u(x, t): utt = c2 uxx on the infinite interval −∞ < x < ∞ with initial displacement of the form u(x, ... equations for the un −n2 un (z) + un (z) = The general solutions of this equation are un (z) = The bounded solutions are c1 + c2 z, c1 enz +c2 e−nz for n = 0, for n = c e−nz , for n > 0,...
Ngày tải lên: 06/08/2014, 01:21
Advanced Mathematical Methods for Scientists and Engineers Episode 6 Part 8 docx
... 1605 difference equation, 1605 Euler’s formula, 1605 Gauss’ formula, 1609 Hankel’s formula, 1607 Weierstrass’ formula, 1611 Gauss’ test, 536 generating function for Bessel functions, 1628 geometric ... Laplace transform inverse, 1477 Laplace transform pairs, 1479 Laplace transforms, 1475 nabla, 157 2290 natural boundary, 437 Newton’s binomial formula, 2276 norm of functions, 1288 normal form of ... ratio test, 531 root test, 533 sequences, 525 series, 526 uniform, 536 convolution theorem and Fourier transform, 1554 for Laplace transforms, 1490 convolutions, 1490 counter-clockwise, 241 2286...
Ngày tải lên: 06/08/2014, 01:21
Báo cáo khoa học: " Effective methods for the production of immunoglobulin Y using immunogens of Bordetella bronchiseptica , Pasteurella multocida and Actinobacillus pleuropneumoniae" docx
... (Bahedelin Co., Germany) for 30 seconds After centrifugation of the sonicated bacterial culture broth at 8,000 rpm for 30 min, the supernatant was centrifuged at 20,000 rpm for hr at 40C and the ... vaccines were made using antigens prepared as described above Vaccine formulations are shown in Table Twenty-week-old white laying hens purchased from a commercial farm were used for immunization ... pleuropneumoniae serotypes and and IROMPs from P multocida A:3 were used as Effective methods for the production of immunoglobulin Y using immunogens of Bordetella bronchiseptica, Pasteurella multocida and...
Ngày tải lên: 07/08/2014, 15:20
EBook - Mathematical Methods for Robotics and Vision Part 8 pdf
... SYSTEMS requires too many terms for a good approximation As we have done for the SVD and the Schur decomposition, we will only point out that several methods exist for computing a matrix exponential, ... matrices Notice that Hermitian (and therefore also real symmetric) matrices commute trivially with their Hermitians, but so do, for instance, unitary (and therefore also real orthogonal) matrices: ... quadratic forms xT Qx that represent energies or second-order moments of mass or force distributions Their physical meaning makes them positive definite, or at least positive semidefinite (for instance,...
Ngày tải lên: 10/08/2014, 02:20
Sensors and Methods for Robots 1996 Part 8 pps
... noise, was 0.16/s for the START gyro and 0.24/s for the Gyrostar The drift in the rate output, 10 minutes after switching on, is rated at 1.35/s for the Gyrostar (drift-rate data for the START ... even for improved odometry, periodic absolute position updates are necessary 150 Part II Systems and Methods for Mobile Robot Positioning Figure 5.17: Experimental results from Melboy using ... recalibration to account for temperature and humidity effects (The system throughput delay constant td can also be determined automatically from a pair of equations for 1/c2 using two known transmitter...
Ngày tải lên: 10/08/2014, 02:21
Where.Am.I-Sensors.and.methods.for.mobile.robot.positioning.-.Borenstein(2001) Part 8 pptx
... noise, was 0.16/s for the START gyro and 0.24/s for the Gyrostar The drift in the rate output, 10 minutes after switching on, is rated at 1.35/s for the Gyrostar (drift-rate data for the START ... even for improved odometry, periodic absolute position updates are necessary 150 Part II Systems and Methods for Mobile Robot Positioning Figure 5.17: Experimental results from Melboy using ... recalibration to account for temperature and humidity effects (The system throughput delay constant td can also be determined automatically from a pair of equations for 1/c2 using two known transmitter...
Ngày tải lên: 10/08/2014, 02:21
Báo cáo y học: "Effects on heart pumping function when using foam and gauze for negative pressure wound therapy of sternotomy wounds" pptx
... function of the heart has only been examined using foam [7-10] The aim of the present study was therefore to compare the haemodynamic effects of NPWT using gauze and foam Eight pigs underwent median ... as the latter is a denser material The heart may therefore be drawn outwards to a greater extent when using foam than when using gauze NPWT using foam may relieve tension on the caval and lung ... as the latter is a denser material The heart may therefore be drawn outwards to a greater extent when using foam than when using gauze NPWT using foam may relieve tension on the caval and lung...
Ngày tải lên: 10/08/2014, 09:23
Chemical Degradation Methods for Wastes and Pollutants - Chapter 8 pot
... inserts into ammonia These two paths form amines, which can end up as cyanide by further dehydrohalogenation Methods have been described for eliminating the formation of cyanides during halofluorocarbon ... transferred to a separator using the natural vapor pressure of the ammonia as the motive force Ammonia is heated to approximately 125jF and pumped, as a vapor, to a condenser for recycling by a commercial ... present, then an ÀNH2 anion can be formed The presence of ÀNH2 can lead to the formation of aminated products via the benzyne mechanism Aminated products were formed in dry NH3 but not when water...
Ngày tải lên: 11/08/2014, 13:21
Numerical Methods for Ordinary Dierential Equations Episode 8 ppsx
... V and W transformations We refer to the transformation of M using the Vandermonde matrix V to form V M V , as the ‘V transformation’ We now introduce the more sophisticated W transformation We ... 12 36 For E(y) ≥ 0, for all y > 0, it is necessary and sufficient for A-stability that λ ∈ [ , λ], where λ ≈ 1.0685790213 is a zero of the coefficient of y in E(y) For 262 NUMERICAL METHODS FOR ORDINARY ... These include the Gauss methods e and the Radau IA and IIA methods as well as the Lobatto IIIC methods A corollary is that the Radau IA and IIA methods and the Lobatto IIIC methods are L-stable...
Ngày tải lên: 13/08/2014, 05:21
Statistical Methods for Survival Data Analysis 3rd phần 8 docx
... calculated using the -45% class as the reference class (or group) For example, for the 990% class, the odds ratio is 13;12/4;3 : 13 The 95% confidence intervals for the ORs are obtained using (14.1.6) ... for all the other variables For example, in Example 14.4, the regression coefficient for the gender variable, 90.279, is an estimate of the log odds ratio for females versus males, adjusting for ... Table 13.11 is the corresponding table for the same six patients in Table 13.9 using gap times Using the notation of Example 13.6, the second product in (13.4.5) for stratum is B exp[b x (t )] ...
Ngày tải lên: 14/08/2014, 05:21
Statistical Methods for Survival Data Analysis Third Edition phần 8 pot
... calculated using the -45% class as the reference class (or group) For example, for the 990% class, the odds ratio is 13;12/4;3 : 13 The 95% confidence intervals for the ORs are obtained using (14.1.6) ... for all the other variables For example, in Example 14.4, the regression coefficient for the gender variable, 90.279, is an estimate of the log odds ratio for females versus males, adjusting for ... recurrence Readers can construct the SAS codes for the AG model by using Table 13.13 and by following the codes given in Example 13.6 Wei et al Model By using a marginal approach, Wei, Lin, and Weissfeld...
Ngày tải lên: 14/08/2014, 09:22