Experiment 15 in and Investigation 8 in Investigating Biology through Inquiry (BIO-I) both use DL-DOPA and DL-Tyrosine as reagents.
Both reagents can be purchased through Sigma � Aldrich (http://www.sigmaaldrich.com/united-states.html).
D...
You can use Logger Pro to calculate cadence or step rate from the Goniometer (GNM-BTA).
You will need to create a calculated column in Logger Pro. Go to the Data drop down menu and select New Calculated Column. Give this new column a proper name, ...
3M sells tape that is 1 inch wide that works well for this application. The tape is called called Dual Lock(TM) Reclosable Fastening System.
The online order code is 3M# S-15826
Apply one piece of tape with hooks to the EKG Sensor (EKG-BTA), th...
If you are interested in measuring flexion and extension of a joint, you can zero the Goniometer (GNM-BTA) to report both positive and negative joint angles from the starting position of the subject.
Computer Users: Select Zero from the Experimen...
The Goniometer (GNM-BTA) comes with a set of flexible arms that vary in size. For subjects with smaller limbs, you may want to use one of the smaller joint arms on this sensor. To change the flexible arm, simply loosen and remove the screw that secur...
You can easily reverse the reporting direction of the Goniometer (GNM-BTA) using the data-collection software. This is very useful for comparing joint activity from left and right limbs. The instructions for reversing direction are dependent on the d...
You can easily increase the length of the 14-inch strap if it is too short to comfortably wrap around the foreleg or forearm. Thread the 2nd 14-inch strap through the eyelet of the first strap. Fold the second strap over itself so that the hook and l...
The Goniometer comes with a set of elastic hook and loop straps that can be used to attach the sensor to a subject. The elastic straps should always be used to attach the stationary arm of the sensor to the upper arm or leg.
If the subject is wear...
Calibrating the Goniometer (GNM-BTA) may not be necessary for some activities. If you are evaluating the range of motion of a joint, such as the knee or elbow, then the stored calibration should work well. For dynamic analysis of a joint you may want...
pH electrodes will NOT give accurate pH values in distilled or deionized water because distilled and deionized water do not have enough ions present for the electrode to function properly. The readings will drift and be essentially meaningless. If y...