Course Policies for BME 225

Biomedical Systems


Instructor:               Dr. Steven A. Jones

Phone:                    257-2288

Office Hours:           10:00-12:00 M-F

Time:                      2:00-3:15 pm, MWF


Course Concept: All systems can be viewed from the perspective of input verses output.  An amplifier, for instance may have a 1 volt sine wave as its input and a 10 volt sine wave as its output.  Similarly, one may look at the heart as a system which has a blood pressure and/or flow rate as its input and a different pressure/flow as its output.  A skeletal muscle may have a set of neural impulses as its input and a specific tensile force as its output.  There are multiple complicating factors in these systems, such as non-linearity, time variance, and hysteresis, but as a first approach we can treat them as time invariant linear systems.  This course provides the student with the tools necessary to analyze such systems and provides physiological example of their application.


Text Book:  Two books are required for this course, “Signals and Systems” by Hsu, and “Signals and Systems Made Ridiculously Simple” by Karu.  Despite its title, the book by Karu is highly regarded by students at MIT and other institutions (you may want to read about it on  It provides the student with a basic and almost intuitive understanding of the concepts to be covered, without inundating the student with mathematical details.


Course Policies

1. Students must read the assigned material by the due date specified under reading assignments below.  A 5 minute quiz will be given, on average about once a week.  These quizzes will not be counted against you, but will be added as bonus points.


2. There will be three exams, two midterms (25% each) and one final (25%).  The exams must be taken during class time on the day specified.  There will be no early exams or late exams, except with a medical excuse signed by a physician.  Explanations such as “my alarm clock didn’t go off,” or “I already made reservations to fly to my Aunt’s house on November 12th” will not excuse you from taking the test at the assigned time.  The remaining 25% will be Homework, and an additional 5% will be based on bonus quizzes.


Homework is an integral part of this course and must be turned in.  Late homework will not be accepted for grading.  Note that a fair number of assignments will be taken from the book by Hsu, which already has the answers in it.  It is in your best interest to attempt to do the problems before you look at the answers.  Otherwise you will be in trouble during the exams.  Yes, I do expect these assignemnts to be turned in!  A standard grading scale will be used:


90-100: A, 80-90: B, 70-80:C, 60,70:D, <50:F


Homework will be graded in class. Please fold your homework in half, lengthwise, and mark the outside, at the top of the page, with your name, the course number, and the number of the homework set, and the due date.  For example, see the layout to the right.


Also mark each page with your name & the page number e.g. John Doe, page 1 of 4).


3. Attendance regulations: All students are expected to attend the lectures.


4. Office Hours: Please observe my office hours.  If you must see me outside of office hours, please make an appointment.  Although time spent with students is generally enjoyable, it can distract from my other duties if not kept under control.  Also, please do come to see me during my office hours.  This is often the best way for me to determine what concepts the class may need more help with.