Many single or multispan arch bridges are strengthened with the addition of some kind of structural support between adjacent arches of multispan or beside the arch barrel of a single span to increase the strength of the overall structure. It was traditionally formed by either placing loose rubble masonry blocks between the arches and beside the arches or using mortar or concrete to construct a ...

The possibility of using a nonlinear moving average (NMA) test as a test for ARCH is considered. A joint test of ARCH and NMA tests is derived. The asymptotic relative efficiency of the NMA test against ARCH is also computed, and is found to be equal to zero. The small sample properties of the tests are examined by some simulation experiments, along with the effects of additive outliers. Overal...

It is essential to select the optimum method of cerebral protection and operative technique for arch repair to improve the surgical outcome of arch aneurysm or dissection. Selective antegrade cerebral perfusion (SACP) is our current method of choice if required cerebral protection time exceeds 30 minutes. Moderate hypothermic two-arch vessel perfusion (innominate artery or right axillary artery...

The objectives of this study were to estimate the maxillary arch measurements, to assess the validity of Pont's & Korkhaus' Indices; to determine the relationship between maxillary arch form with head form; and to estimate the cephalic index (CI) of the study population. A cross-sectional study was conducted on 85 mature Malay students, 28 male students (32.98%), 57 females (67.02%) attending T...

The embryonic arches develop in the fourth and fifth gestational weeks with the corresponding pharyngeal arch arteries connecting the aortic sac with the dorsal aorta. The fourth arch forms the aorta; the left sixth arch forms the left pulmonary artery and duct. The fifth aortic arch is a transient developmental structure in humans as there is no 5th pharyngeal arch; indeed, its existence has, ...

OBJECTIVE Implants are being used in orthodontics as a reliable mode of anchorage. Among other factors, the cortical bone thickness plays a major role in determining the stability of these implants. The objective of this study was to study the relationship of various arch forms and the cortical bone thickness and to determine if the cortical bone thickness varies between various arch forms. Thi...

Overexpression of Hoxa2 in the chick first branchial arch leads to a transformation of first arch cartilages, such as Meckel's and the quadrate, into second arch elements, such as the tongue skeleton. These duplicated elements are fused to the original in a similar manner to that seen in the Hoxa2 knockout, where the reverse transformation of second to first arch morphology is observed. This co...

AIMS To investigate the role of the geometry of the aortic arch in resting hypertension after successful repair of coarctation (CoA). METHODS AND RESULTS 105 patients (15.3+/-6 years) with successful repair of aortic CoA underwent blood pressure (BP) measurements at rest and magnetic resonance imaging (MRI) of the aortic arch and left ventricle. Three categories of aortic arch shape were defi...

1890 1. Die SehstSrungen nach Verletzung der Grosshimrinde. Nach Versuchen am Hunde. I, Arch. ges. Physiol., 1884, xxxiv, 67-114. 2. Die Sehst6rungen nach Verletzung der Grosshirnrinde. Nach Versuchen am Hunde. II. Die Natur der Sehst6rungen, Arch. ges. Physiol., 1884, xxxiv, 115-172. 3. Die elementaren St6rungen einfacher Funktionen nach oberfl~chlicher, umschriebener Verletzung des Grosshirns...