Numerade

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Briefly describe the basic principle of immunohistochemistry. State four purposes of IHC in diagnostic pathology Briefly explain the effect of the following factors in IHC i. Fixation ii. Antigen retrieval iii. Antibody selection iv. Controls List at least 3 reagents that may be used on formalin fixed, paraffin embedded tissue for enzyme induced epitope retrieval. Differentiate between Direct and indirect methods of IHC reaction. List 2 reagents used to improve intracellular antibody penetration and state their effect. Mention 2 buffer solutions for heat - induced epitope retrieval and 2 enzymes for the enzyme-induced epitope retrieval. List 2 causes each for specific and non-specific background staining. Illustrate how multiple immunofluorescence labelling is performed in IHC technique State the criteria (one each) for the selection of both positive and negative controls in IHC.

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determine whether says law or keynes law is being articulated in the statements or ideas listed below: A. Recessions are primarily cause by reductions in spending B. Economic recessions willl work themselves out quickly

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A firm should produce any unit of output whose Oprice is less than marginal cost Ototal revenue is greater than marginal cost Omarginal cost is greater than marginal revenue Omarginal revenue is greater than marginal cost

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$ \qquad $ 6. What is the result after simplifying $ \sqrt{\frac{3}{25}} $ ? a. $ \frac{\sqrt{3}}{5} $ b. $ \frac{3}{5} $ c. $ \left(\frac{3}{5}\right)^{2} $ d. $ \frac{\sqrt{15}}{5} $ 7. What is the simplified form of $ \sqrt{32} $ ? a. $ 4 \sqrt{2} $ b. $ 2 \sqrt{4} $ c. 16 d. 4 $ \qquad $ 8. If $ \sqrt[m]{\sqrt[n]{a}}=\sqrt[m n]{a}=\sqrt[n]{\sqrt[m]{a}} $, what is the result after simplifying $ \sqrt[3]{\sqrt{64}} $ ? a. $ \frac{\sqrt{441}}{7} $ b. 2 c. $ \frac{\sqrt{70}}{7} $ d. 9 $ \qquad $ 9. We can simplify radicals through the following methods, EXCEPT: a. using the laws of radicals b. rationalizing the denominator of the radicand c. adding perfect nth power d. reducing the index to the lowest possible order $ \qquad $ 10. What is the simplified form of $ \sqrt{50 x^{2} y^{2}} $ ? a. $ 5 x y \sqrt{2 x y} $ b. $ 5 x y \sqrt{2} $ c. $ 2 x y \sqrt{5} $ d. $ 25 x y \sqrt{2} $

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A worker pushes horizontally on a 2100-N refrigerator on a kitchen floor with a force of 26.0N. A. if the refrigerator moves forward, this person feels it pushing back with less than 26.0 N B. the person always feels a 26.0 N push from the refrigerator C. The person feels a 26.0 N push frim the refrigerator only if it does not move D. The person feels a 2100N push from the refeigerator

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Question 4.The end-to-end delay of sending one packet of length L over N links of transmission rate R is given by the formula NL/R. A. Generalize the above formula for sending P such packets back-to-back over the N links. B. If the transmission rate of first link is R/2 but all the remaining N-1 links is R, derive a formula to calculate end-to-end delay of sending one packet of length L over these N links. C. If the transmission rate of first link is 2R but all the remaining N-1 links is R, derive a formula to calculate end-to-end delay of sending one packet of length L over these N links.

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A Big Mac costs 255 pesos in Uruguay and US$5.15 in the United States. The official exchange rate is 41.91 pesos per dollar. How much is Uruguayan peso undervalued or overvalued? Calculate PPP-adjusted Uruguay GDP per capita, if its GDP per capita is 15,438.

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A sample of argon gas occupies a volume of 0.0400 m³ at 101.3 kPa and 25.0°C. What volume would the same sample of gas occupy if the pressure was increased to 176.0 kPa at constant temperature. Volume: m³

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4. Solve each of the following. a) $\sin\theta = -\frac{\sqrt{3}}{2}, \quad 0 \le \theta \le 2\pi$ Show your work above and write your conclusion or final answer in the box below. b) $\sec\theta = \frac{2\sqrt{3}}{3}, \quad -2\pi \le \theta \le 2\pi$ Show your work above and write your conclusion or final answer in the box below. c) $\csc\theta = -2, \quad 0^\circ \le \theta \le 360^\circ$ Show your work above and write your conclusion or final answer in the box below.

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25] Q1 Write a MATLAB code to numerically evaluate the 2nd derivative of the function f(x) = exp(2x) at x0 = 0 using central differencing. Calculate the absolute error Eabs in the numerical derivative for a range of x between 1 and 2^-15. Plot x vs Eabs in a log-log plot. [35] Q2 Consider the following ODE governing steady, 1D heat conduction. 0= 0 < x < 1; T(x=0) = 0 & T(x=1) = 50 [15] a) Considering k = 100 - 50x, discretize the ODE with an x that would result in a linear system of equations with 5 unknowns and 5 equations. Write down the equations as a matrix-vector equation. [20] b) Write a MATLAB code to solve the same problem in a) and plot T vs. x.

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joseph d.