Deletions of the long arm of the Y chromosome have previously been associated with azoospermia and short stature. We report the results of a detailed clinical and molecular study of nine males with partial deletions of Yq. Special emphasis was laid on congenital anomalies and dysmorphic features. Some of the patients have developmental problems or distinct facial features, namely a small chin a...

conclusions previous abdominal surgery, including previous colonic surgery, confers no added risk of conversion to an open operation, morbidity or mortality for patients undergoing laparoscopic colorectal surgery. the operative time however is longer (30 minutes) for patients with previous colonic surgery. results out of 718 patients 476 had no previous abdominal surgery (group a), whilst 190 p...

the results of standard and augmented surgical treatment of partial accommodative esotropia have been compared in this study.in this sequential matched randomized double blind clinical trial, we studied 48 patients (96 eyes) with partial accommodative esotropia between the ages of 13 to to 144 months, referring to strabismus clinic of farabi eye hospital between 1999-2000. these patients were g...

mediastinal tracheostomy is a complex surgical procedure for the management of airway reconstruction in patients whose distal trachea is not sufficiently long to be reconstructed as cervical tracheostomy after tracheal resection for malignant diseases. in this article (study), we present our 10 year experience of this uncommon procedure in thoracic surgery ward of imam khomeini's hospital, tehr...

The title compound, C(11)H(9)N(3)O(2), exists in the E conformation with respect to the azomethane C=N bond, and has the keto form. There are two independent mol-ecules in the asymmetric unit and each of these features a slight slanting of the pyridine and furan rings, which form a dihedral angle of 14.96 (10)° in one of the mol-ecules and 5.53 (10)° in the other. The crystal structure is stabi...

We report on two boys aged 2 and 6 years-old respectively with dysmorphic face, ptosis, down-slanting palpebral fissures, hypertelorism, epicanthic folds, low-set ears, malar hypoplasia, micrognathia, high-arched palate, clinodactyly, palmar simian line, pectus excavatum, winging of the scapulae, lumbar lordosis and mild thoracic scoliosis who present congenital hypotonia, slightly delayed moto...

Well-designed cannulae must allow good flow rate and minimize nonphysiologic load. Venous cannulae generally have side holes to prevent the rupture of blood vessel during perfusion. Optimizing side hole angle will yield more efficient and safe venous cannulae. A numerical modeling was used to study the effect of the angle (0°-45°) and number (0-12) of side holes on the performance of cannulae. ...

Research on the steel structures with confining of axial expansion in fixed beams has been quite intensive in the past decade. It is well established that the thermal behaviour has a key influence on steel structural behaviours. This paper describes mechanical behaviour of beams with bolted slant end-plate connection with nonsymmetric gravity load, subjected to temperature increase. Furthermore...

With increasingly available stereoscopic technology and techniques, it is interesting to investigate new ways of representing information using stereoscopy. Within this context a user study was performed to compare if it is worthwhile to use 3D map presentations over 2D, and to identify how much a 3D stereoscopic map can be slanted without losing the perception of information. Two different vis...