A virtual classroom proved superior to a traditional one in teaching medical students to identify heart sounds, according to a study presented at the American College of Cardiology meeting. Stethoscope skills are alarmingly low among doctors in training, a handicap that often continues into patient practice.
Long bothered by this lack of proficiency, lead author Michael Barrett, M.D., clinical associate professor of medicine and cardiologist at Temple University School of Medicine and Hospital, hypothesized that cardiac auscultation is more of a technical skill and thus could be mastered through intensive repetition.
Based on his previous research, which found that repetition vastly improved students accuracy, Barrett created and tested a virtual classroom. Through the web site, students downloaded various heart sounds, such as murmurs, and listened to each one 500 times. Examinations, grading and feedback also took place online.
Eryn Jelesiewicz | EurekAlert!
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Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
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In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
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Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.
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22.05.2017 | Physics and Astronomy