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Unformatted text preview: Lecture 1 : ‘PQRSTU’ – Entity Theory-intelligence is fixed property of individuals--Incremental theory- intelligence improved through effort Lecture2 : clear all clc % Read audio file [y,Fs,bits] = wavread('.. \Audio Files \sopr44_1_NOISY.wav'); % Play audio file wavplay(y,Fs); % Plot audio file (note: assume a 2-channel stereo signal) t=1:1:length(y); subplot(211),plot(t,y(:,1)) subplot(212),plot(t,y(:,2)) % Lowpass filter audio signal and listen to it x = my_LPF(y); wavplay(x,Fs); Lecture 3 : The electrical impulse that starts each beat originates in the sinoatrial (SA) node-Electricity next flows through the ventricles, bottom chambers, in the “QRS-complex” as they contract and push blood out to the body.- Finally, the heart resets electrically on the “T-wave” and is ready for the next beat.-An average heart beats 100,000 times a day, -pumping 2,000 gallons of blood-Ventricular tachycardia (VT)-Paroxysmal supraventricular tachycardia (SVT)-Implantable Cardioverter Defibrillators (ICD’s)-9-year battery life-Pacemaker-speed up heart-ICD-slows down heart-Threshold: -28 (DM) 0.90292 (EFF)-Onset is the most reliable distinguishing feature of a and we VT SVT; will use it. Lecture 5-ECOLI-I micrometer-E. coli lives in the lower intestines of mammals-The fall 2006 spinach infection by the O157:H7 strain resulted in $200 million in losses for California farmers, Sickened more than 130 people, and resulted in at least 3 deaths Recent outbreak at an elementary school in Indiana-bacteria to serve as factories to synthesize proteins at an industrial scale e.g., recombinant DNA technology was the manipulation of E. coli to produce human insulin Cell body is about 1 μ m - 6 μ m Tail is called made of 6-10 flagella (singular is flagellum) Flagella is really a bundle of several threads Rotates CCW to make E coli move forward (helix- run) Cell rotates slowly in the opposite direction (conservation of angular momentum!)(tumble) The physics E coli experiences is very different than our world- Extremely low Reynolds number- Means viscous effects dominate- Would be like living in very thick honey- No inertia (e.g., you can’t “coast”)- Thermal, molecular forces are important- Individual fluid molecules bumping into you affect your motion- Objects “diffuse” through the fluid because of this effect (called Brownian motion)- Albert Einstein pioneered the concept of Brownian Motion- Motion based on changes in chemokine gradient- Spinning flagella motor operate at around 1200 electron Volts (eV) per second (about 90% efficiency) Who is responsible for designing and implementing the solution to the technical problem on a project? • Everyone Where should the spokesperson from your group subm it the team resume and project reports?...
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- Spring '08
- Escherichia coli