Computer-Tailored Student Support in Introductory Physics.

Large introductory courses are at a disadvantage in providing personalized guidance and advice for students during the semester. We introduce E2Coach (an Expert Electronic Coaching system), which allows instructors to personalize their communication with thousands of students. We describe the E2Coach system, the nature of the personalized support it provides, and the features of the students who did (and did not) opt-in to using it during the first three terms of its use in four introductory physics courses at the University of Michigan.

[Percutaneous transluminal angioplasty for vascular access in hemodialysis. Apropos of 53 operations].

Percutaneous transluminal angioplasty as stenosis treatment in hemodialysis arterio venous fistulae. About 53 cases. Percutaneous transluminal angioplasty was used 53 times to dilate 75 stenoses in 37 hemodialysed patients.