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kelsey posada

kelsey p.

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In a dichotomous key, only one description in a couplet may be true of an unknown organism.

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A male can transmit a pseudoautosomal gene to O neither his sons nor his daughters O both his sons and his daughters O his sons, but not to his daughters O his daughters, but not to his sons

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Within the Transtheoretical Model, which of the following is NOT one of the Two Ds of Precontemplation? Group of answer choices Destruction Delay Doubt

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8. Which of the following is true of the distal tubule? a. receives urine from the collecting duct b. responds to aldosterone c. nephron structure that is primarily concerned with filtration d. also called Bowman's capsule

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Find each limit. Use $-\infty$ and $\infty$ when appropriate. $\lim_{x \to 1} \frac{x^2 + x - 2}{x - 1}$

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. Consider a long n-channel MOSFET characterized by following parameters: Al metal gateConsider a long n-channel MOSFET characterized by following parameters: Al metal gate (W_(M)=chi =4.04eV),x_(0x)=15nm, uniform N_(A)=10^(17)cm^(-3),L=1mu m,W=10mu m. at bias given by V_(GS)=2.5V,V_(DS)=1V, and V_(BS)=0V. (20 pt) (a) You need to mark S/D and MOS structure. Please draw an energy band diagram from S/D (longitudinal direction) and below gate region (horizontal direction) at Zero bias. Mark EF precisely. (b) Please calculate p-n junction diode depletion region width on the source side and drain side at zero bias and at bias given by V_(GS)=2.5V,V_(DS)=1V, and V_(BS)=0V. (c) At bias given by V_(GS)=2.5V,V_(DS)=1V, and V_(BS)=0V. Estimate the sheet charge density (Q_(i)(y)) in inversion layer at the source (y=0) and drain ends (y=L) of the channel. Estimate the current flowing through the drain of this transistor. Use mu _(e)= 500c(m^(2))/(V)-s. (d) At bias given by V_(GS)=2.5V,V_(DS)=4V, and V_(BS)=0V. Estimate the sheet charge density (Q_(i)(y)) in inversion layer at the source (y=0) and drain ends (y=L) of the channel. Estimate the current flowing through the drain of this transistor. Use mu _(e)=500 c(m^(2))/(V)-s. Basic parameter C_(ox)=2.3 imes 10^(-7)(F)/(c)m^(2) V_(FB)=-1V V_(T)=0.56V gamma =0.79V^((1)/(2)) phi _(sT)=0.84V C_(gsi)=1.5 imes 10^(-14)F (WM = chi = 4.04 eV), x0x = 15 nm, uniform NA = 1017 cm-3, L = 1 mu m, W = 10 mu m. at bias given by VGS = 2.5 V, VDS = 1V, and VBS = 0 V. (20 pt) (a) You need to mark S/D and MOS structure. Please draw an energy band diagram from S/D (longitudinal direction) and below gate region (horizontal direction) at Zero bias. Mark EF precisely. (b) Please calculate p-n junction diode depletion region width on the source side and drain side at zero bias and at bias given by VGS = 2.5 V, VDS = 1V, and VBS = 0 V. (c) At bias given by VGS = 2.5 V, VDS = 1V, and VBS = 0 V. Estimate the sheet charge density (Qi(y)) in inversion layer at the source (y = 0) and drain ends (y = L) of the channel. Estimate the current flowing through the drain of this transistor. Use mu e = 500 cm2/V-s. (d) At bias given by VGS = 2.5 V, VDS = 4 V, and VBS = 0 V. Estimate the sheet charge density (Qi(y)) in inversion layer at the source (y = 0) and drain ends (y = L) of the channel. Estimate the current flowing through the drain of this transistor. Use mu e = 500 cm2/V-s. Basic parameter Cox = 2.3 x 10-7 F/cm2 VFB = -1 V VT = 0.56 V = 0.79 V1/2 sT = 0.84 V Cgsi = 1.5 x 10-14 F 3. Consider a long n-channel MOSFET characterized by following parameters: Al metal gate (Wm = X = 4.04 eV), xox = 15 nm, uniform Na = 1017 cm-3, L = 1 um, W = 10 um. at bias given by Vcs =2.5 V,Vps =1V, and Vss =0 V.(20 pt) (a) You need to mark S/D and MOS structure. Please draw an energy band diagram from S/D (longitudinal direction) and below gate region (horizontal direction) at Zero bias. Mark EF precisely. drain side at zero bias and at bias given by Vcs = 2.5 V, Vps = 1V, and Vs = 0 V. (c) At bias given by Vgs = 2.5 V, Vps = 1V, and Vss = 0 V. Estimate the sheet charge density (Qi(y)) in inversion layer at the source (y = 0) and drain ends (y = L) of the channel. Estimate the current flowing through the drain of this transistor. Use ue = 500 cm2/V-s. (d) At bias given by Vgs = 2.5 V, Vps = 4 V, and Vss = 0 V. Estimate the sheet charge density (Qi(y)) in inversion layer at the source (y = 0) and drain ends (y = L) of the channel. Estimate the current flowing through the drain of this transistor. Use ue = 500 cm2/V-s. Basic parameter Cox = 2.3 x 10-7 F/cm2 VFB = -1 V VT=0.56 V = 0.79 V1/2 qsT =0.84 V Cgsi = 1.5 x 10-14 F

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2. [01] (20 pts) (a) (10 pts) Use mathematical induction to show that when $n$ is an exact power of 2, the solution of the recurrence $T(n) = \begin{cases} 2, & n = 2 \\ 2T(\frac{n}{2}) + n, & n = 2^k, k > 1 \end{cases}$ is $T(n) = n \log n$. (b) (10 pts) Give a closed form for the following recurrence using asymptotic notation. In particular, you need to give a function $f$ such that $T(n) = \Theta(f(n))$ and justify your answer. $T(n) = 3T(\frac{n}{\sqrt{2}}) + n^4$

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1. Prove that the trace of an operator \hat{A} in the orthonormal basis $|a_n\rangle$ is the same as the trace of \hat{A} in a second orthonormal basis $|b_n\rangle$, i.e. $\sum_n \langle a_n|\hat{A}|a_n\rangle = \sum_n \langle b_n|\hat{A}|b_n\rangle$.(25 pts.)

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Example 2.3.1: Applying KCL. If $V_4$, the voltage across the 4 $\Omega$ resistor in the circuit below, is 8 V, determine $I_1$ and $I_2$. 1 $1\Omega$ $I_1$ 10 A 3 $\Omega$ + 2 4 $\Omega$ $I_2$ + 2 $\Omega$ 10 V Solution The designated direction of $I_2$ is such that it enters the negative (-) terminal of $V_4$, whereas according to Ohm's law, the current should enter through the positive (+) terminal of the voltage across a resistor. Hence, in the present case, we should include a negative sign in the relationship between $I_2$ and $V_4$, namely $I_2 = -\frac{V_4}{4} = -\frac{8}{4} = -2$ A. Thus, the true direction of the current flowing through the 4 $\Omega$ resistor is opposite of that of $I_2$. Using the KCL convention that defines a current as positive if it is leaving a node and negative if it is entering it, at node 2: 10 - $I_1$ + $I_2$ = 0, which leads to $I_1 = 10 + I_2 = 10 - 2 = 8$ A

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ii) The following molecules acyclovir, doxorubicin and cyclophosphamide are drugs that interact with DNA. However, their modes of action are quite different. For EACH compound, suggest their likely mode of action at a mechanistic level. Consider both the general structural features and reactive functional groups present on these molecules, as well as the general features of DNA. To assist you, the DNA double helix and a close up of base-pairing and the sugar-phosphate backbone are also provided below. (9 marks) H2N HN HO acyclovir GC 10 A Major groove Minor groove TA TA TA CI OH OH CI "OH NH ? OH O doxorubicin NH2 ? OH cyclophosphamide 34 A CG GC TA -TA- GC- GIC TA DNA double helix ? T Me A O----H,N NH-N NH?---- P=0 N-----HN C NH----O Base pairing G ??? N 3 0 ???

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