In eight patients with chronic ventricular tachycardia and left ventricular aneurysms, we detected delayed ECG wave forms after the QRS complex from the body surface using a high-resolution ECG recorder, amplification and signal averaging. Delayed wave-form activity (D wave) extended a mean of 70 msec beyond the termination of th QRS complex. This delayed activity frequently extended to the lim...

To investigate role of delayed operation to stimulate growth of strong external callus in high-energy fractures, and explore a new way for bone healing. Twenty adult dogs were employed, and randomly divided into four groups, including group A-D. The dogs underwent osteotomy by wire saw in middle of femur, electric coagulation damaged surrounding periosteum, forming a 1 cm defect. Group A were i...

abstract traumatic rupture of the distal biceps tendon is rare. conservative treatment can result in reduced flexion and supination power with reduced function. this case report emphasizes the need for prompt surgical treatment and describes the possible complications of delayed surgical intervention.

purpose: to report the clinical, paraclinical and histopathologic features of eyelid mass lesions in a patient with tuberous sclerosis. case report: a 14 year old boy with a slowly progressive right upper lid mass and history of seizures, mental retardation and multiple skin lesions on the face and body was referred to labbafinejad medical center. cortical tubers and subepandimal nodules were r...

background and aims. studies have shown decreased bond strength of composite resin to human and bovine bleached enamel. this study evaluated the effect of sodium ascorbate and delayed bonding on the bond strength of two adhesive systems to bleached enamel. materials and methods. the labial surfaces of 150 sound bovine incisor teeth were abraded with abrasive paper. the teeth were randomly divid...

Vitamin D can be synthesized following exposure to ultraviolet radiation (UVR), ingested in the diet or provided through oral supplementation. The medical literature frequently states that humans obtain most of their vitamin D from sunshine and that UVR exposure is essential to maintain vitamin D levels. A systematic review was conducted to determine the requirement for UVR in maintaining adequ...

To determine the adherence of pediatricians to the nationwide 'Vitamin D Prophylaxis Program' and to evaluate their attitudes about vitamin D intake. The study was conducted using the Turkish National Pediatrics Association network. The pediatricians were asked to respond to an online questionnaire that included five questions on 'What dose of vitamin D they recommend for supplementation?', 'At...

This paper is concerned with the time delayed active control of a three-degrees-offreedom supersonic lifting surface in the vicinity of the flutter boundary. Particular attention is given to the study of bifurcation and stability in the vicinity of critical flight speed at which Hopf bifurcation occurs. The critical flight speed is defined in terms of the eigenvalues of the linearized system. H...