Learners will examine how cardiac markers are used in the diagnosis of cardiac disease.

The learner will learn how to understand, interpret, and correlate cardiac marker test results.

Students work six practice problems to determine the total impedance of a parallel circuit.

In this animated and interactive object, learners follow two methods for converting a hexadecimal number to a decimal number. They test their knowledge in exercises at the end of the learning object.

In this learning activity you'll review various types of common components used in electronics and view their schematic diagram symbols.

Learners view a demonstration of Kirchhoff's Voltage Law using complex numbers for an ac circuit.

In this animated and interactive object, learners use a memory device to identify NPN and PNP transistors. Learners also examine how much the transistors turn on when the voltage applied to the base is varied.

Learners view an animated demonstration of how to determine the final output of the combinational circuit.

Students solve six problems for series impedance using complex numbers. Immediate feedback is given.

In this learning activity you'll perform subtraction calculations using borrowing with mixed number fractions.

Learners assign oxidation numbers to atoms in neutral compounds and in polyatomic ions. Six examples are worked through in detail, and three problems are provided.

Students solve five problems to determine the total impedance of a series-parallel circuit. Immediate feedback is given.

In this learning activity you'll read about Colombia and view a map.

In this interactive object, the learner matches various disorders to the acid-base disturbances they cause.

In this learning activity you'll review different math symbols and identify them in a matching exercise.

Learners examine the different types of lines used on a P&ID diagram and the types of connections they represent. They test their knowledge in a matching exercise.

Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.

Students read how to determine the total impedance of a parallel circuit using complex numbers. The "J" term is used in the calculations.

Students read an explanation of the Voltage Divider Rule with complex numbers. Examples are given.

In this learning activity you'll test your ability to select the proper gage blocks when making a stack.