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Full-Text Articles in Physics
Direct Comparison Between Phase Locked Oscillator And Direct Resonance Oscillator In The Noncontact Atomic Force Microscopy Under Ultrahigh Vacuum, Byung I. Kim
Physics Faculty Publications and Presentations
I have demonstrated the advantage of the phase locked oscillator (PLO) over the conventional direct resonance oscillator (DRO) in noncontact mode atomic force microscopy (AFM) under ultrahigh vacuum. Direct comparison between PLO and DRO has been made in terms of background noise level, temporal response, and stability. Compared to the DRO method without phase coherence, the experimental results show that the PLO method is more effective in reducing the noise level and enhancing the stability over all force regimes in UHV noncontact AFM. The noise reduction and stability enhancement in PLO indicate the important role of the phase coherent effect …
Radical, Getting To The Root: A Review Of Curriculum Dynamics: Recreating Heart, Dewey I. Dykstra
Radical, Getting To The Root: A Review Of Curriculum Dynamics: Recreating Heart, Dewey I. Dykstra
Physics Faculty Publications and Presentations
No abstract provided.
How We Think About And Prepare To Teach Physics, Dewey I. Dykstra
How We Think About And Prepare To Teach Physics, Dewey I. Dykstra
Physics Faculty Publications and Presentations
We have been preparing physics teachers in the same manner for many decades. Yet, physics education research reveals for some observers disturbing evidence of little or no change in understanding the phenomena occurs as a direct result of physics instruction from elementary school through the college years. The apparent compatibility between these learning results and prevailing paradigm enables the construction of a description the paradigm. If it can be demonstrated that there is even just one alternative paradigm from which powerful alternative pedagogical practice is derived, are we not obligated to change how we prepare to teach physics?