The opening of a new S-wave threshold is frequently accompanied by an abrupt dip in the magnitude of an amplitude for an already-open channel. One familiar example is the behavior of the I = 0 S-wave ππ scattering amplitude atKK̄ threshold. Numerous other examples of this phenomenon in recent data are noted, and a unified description of the underlying dynamics is sought. PACS numbers: 11.55.-m, ...

Objective- to determine the range of systolic times intervals using Pulsed-wave Doppler and m-mode echocardiography in normal, healthy Great Dane dogs. Design- Descriptive study. Animals- Thirty healthy Great Dane dogs. Procedures- This study examined 30 clinically healthy Great Dane dogs by the twodimensional, M-mode and Pulsed-wave Doppler echocardiography. The dogs were awake and unsedated. ...

conclusions sm wave in tdi is prominent and significantly high in mvp syndrome. also, our study showed some degree of diastolic dysfunction in mvp patients. results seventy-five patients (48 females) at a mean age of 26.5 ± 9.4 years and 50 individuals (32 females) at a mean age of 27.1 ± 8.3 years were enrolled in the study. as the important results of our study, sm wave was much more prominen...

a case o f the electrical alternans of t he tu wave and peri odic nega t ive u wave associated with c l ini cal symptoms , e lectrocardi ographic a nd postmortem findi ng s o f romano- ward syndrome has been pres ented. no e lec ~ r o l y te d ist urbance was found t o be r esponsible for t his exceptional l y rare situation . changes i n a-v conduct i on and left bu n• d ie branch block could ...