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Showing posts with the label PETER

PS.10.1 Worked Example - Blocks with Friction and Massive Pulley

DR. PETER DOURMASHKIN: I would like to now analyze the motion of a system of particles that has both translational and rotational motion. So I'm going to consider a pulley, and the pulley has radius R. And there is a string wrapped around THE pulley and a block of object 1 that's on a plane, and another block of object 2. And as object 2 falls down, the pulley rotates and object 1 moves to the right. And there's a coefficient of friction between block 1 and the surface. Now, in order to analyze this problem, I'm going to apply, for the pulley, our torque equals I cm alpha, and for each of the blocks, I'll apply F1 equals m1 a1 and F2 equals m2 a2. But the important thing to realize is that these three quantities, the acceleration of block 1, the acceleration of block 2, and the angular acceleration of the pulley, are constrained because this string is not slipping around the pulley. And so let's begin to analyze this type of problem. So we'll s...

Lecture 17 Direct Prediction of Outcome Mortality

PETER PARK: For today, I'll just talk a little bit more generally at the beginning about a few observations that I've had. Perhaps a little bit about reliability microarray studies. I'll talk about classification problem in general. And then, I'll talk more about phenotypes. And then review some literature that are well cited. So I bet you've had some exposure to that, right? Did anyone-- maybe Marco, or Zack, talk about lymphoma studies? Do you remember any other papers that you've covered? Yeah? AUDIENCE: [INAUDIBLE] PETER PARK: Anything else you remember? All right, so-- AUDIENCE: [INAUDIBLE] PETER PARK: Yeah, right, so maybe this stuff that I have is new. OK, good. So you probably know all this. It's actually-- so the cDNA arrays are cheaper. So they are used a lot of biology labs. The ones that I work with, for example, in the new building, they have their own libraries. They print their own. Affy arrays are-- I think the consensus that th...

9. Translating Technology Into the Clinic

PETER SZOLOVITS: Fortunately, I have a guest today, Dr. Adam Wright, who will be doing an interview-style session and will answer questions for you. This is Adam's bread and butter, exactly how to translate this kind of technology into the clinic. He's currently in the partner system at the Brigham, I guess. But he's about to become a traitor and leave us in Boston and occupy a position at Vanderbilt University, for which we wish him luck. But I'm glad that we caught him before he leaves this summer. OK, so quite frankly, I wish that I could tell you a much happier story than the one that you're going to hear from me during the prepared part of my talk. And maybe Adam will cheer us up and make us more optimistic, based on his experience. So you may have noticed that AI is hot. So HIMSS, for example, is the Health Information Management Systems Society. It's a big-- they hold annual meetings and consist of a lot of vendors and a lot of academics. An...