Conceptualizing learning about proteins with a molecular viewer in high school based on the integration of two theoretical frameworks.

The use of a molecular viewer to visualize proteins has become more prevalent in high schools in recent years. We relied on the foundations of two theoretical frameworks to analyze questions in two learning tasks designed for 10th- to 12th-grade biotechnology majors that make use of Jmol. The two theoretical frameworks were: (i) classification of scientific knowledge into content, procedural, and epistemic knowledge; and (ii) evaluation of the cognitive skills central to visual literacy in biochemistry.

[The effect of verapamil on the course of stenocardia of effort, on the blood serum lipid level and on the basic indices of carbohydrate metabolism during the long-term use of the preparation].

The therapeutical efficiency of verapamil given for 3 months was studied in 36 patients with stable exercise-induced angina by multistep gradually increasing bicycle ergometry exercise test. The effects of the agent on serum lipid levels were evaluated in 30 cases. The therapeutical effect was achieved in 24 patients; verapamil caused a pronounced increase in physical working capacity just during the acute drug test in all cases and showing growing effects within a month of treatment.