We derive higher-order corrections in the magnon dispersion relations for two- and three-dimensional antiferromagnets exposed to magnetic staggered fields that are mutually aligned. “Dressing” magnons is prerequisite separate low-temperature representation of pressure into a piece due noninteracting corresponds magnon–magnon interaction. Both two three spatial dimensions, interaction turns out ...

The influence of acute coronary occlusion on systolic and diastolic left ventricular pressure-volume relations was studied in 10 patients undergoing percutaneous transluminal coronary angioplasty (PTCA). Pressure-volume relations were obtained by conductance catheter and micromanometer techniques and with volume load altered by transient inferior vena caval occlusion. End-systolic and end-diast...

Changes in intramyocardial tissue pressure modulate the relationship between coronary pressure and flow during the cardiac cycle. The present study compared the relation between measured and calculated diastolic subendocardial tissue pressure and coronary pressure at zero flow in anesthetized dogs after modulation of either coronary sinus (i.e. Fogarty catheter) or left ventricular intracavity ...

To quantify the resistance and particularly the capacitance properties of the entire pulmonary vascular bed, isolated perfused lungs of nine dogs were studied. In each dog, with a fixed endotracheal pressure of 5 mm Hg, the arterial pressure-flow and pressure-volume relations were determined while venous pressure was fixed at constant values of 2, 5, and 8 mm Hg. In the same dogs, the venous pr...

As a counselor, family therapist, and teacher who works with family physicians and residents, I often get to observe what I believe is the essence, or soul, of family medicine – relationship. Unfortunately, as you probably know all too well, certain pressures in health care today seem to be putting the specialty at risk of losing its relational soul. What’s a family physician to do? Although yo...

Although previous studies have proposed a variety of models to characterize diastolic pressure-flow relations, the models' ability to predict capacitance-free pressure-flow relations from dynamic information in individual studies has not been determined. This study tested the ability of a lumped RC model with pressure-dependent parameters to predict diastolic capacitance-free flow during maximu...