BACKGROUND Postsystolic shortening in ischemic myocardium has been proposed as a marker of tissue viability. Our objectives were to determine if postsystolic shortening represents active fiber shortening or passive recoil and if postsystolic shortening may be quantified by strain Doppler echocardiography (SDE). METHODS AND RESULTS In 15 anesthetized dogs, we measured left ventricular (LV) pre...

was found in 22 of 24 subjects with myocardial infarction and 14 patients without documented myocardial infarction. A close linear correlation (r = -0.82, P < 0.001) was noted between shortening of the QS2I and catecholamine excretion among all patients irrespective of the presence of documented infarction. Patients with serious arrhythmias had significantly higher levels of catecholamine excre...

Two structures on the distal ends of Chlamydomonas flagellar microtubules are described. One of these, the central microtubule cap, attaches the distal ends of the central pair microtubules to the tip of the flagellar membrane. In addition, filaments, called distal filaments, are observed attached to the ends of the Atubules of the outer doublet microtubules. Inasmuch as earlier studies suggest...

The focus of this paper is on two types of shortening observed in recent Japanese loanwords and on the trochaic shortening in Fijian. I will argue that the Japanese shortenings take place when a metrically unstable binary foot (extrametrical foot) becomes a stray mora so as to be accommodated into one of the two proposed surface ternary foot structures whereas Fijian Trochaic Shortening occurs ...

The aim of this study was to investigate the relationship between compensatory shortening and coarticulation in German tense and lax vowels and to determine whether this relationship was influenced by prosodic accentuation. While previous studies focussed on temporal vowel reduction due to compensatory shortening, and often found conflicting results, our study extends previous results by includ...

the disease of thalassemia major requires mangement by repeated transfusions of packed cell and iron chelators such as deferoxamine. today, serum ferritin is used for estimation of adequacy of the management. as the most morbidities and mortalities of the disease are the consequences of cardiac complications. echocardiography is periodically periodically performed along with the management. in ...

The right ventricular outflow tract (OT) is a functionally distinct area of the right ventricle. However, there is little information on the contrdingly, inflow tract (IT) and OT chords and right ventricular free wall segmental changes were measured with implanted ultrasound crystals. The timing and extent of shortening of IT and OT chords and free wall segments were determined both at rest and...

Peroxisome inheritance at the right time and place E very yeast cell has numerous peroxi-somes—organelles that metabolize fatty acids— and roughly half are passed on to their daughter cells. Signaling from the bud to the mother cell ensures even peroxisome distribution by controlling the organelles' transport, say Fagarasanu et al. Peroxisomes travel into the bud along actin tracks using the my...