نتایج جستجو برای: variations
تعداد نتایج: 187377 فیلتر نتایج به سال:
Introduction: Vertebral arteries arise from the root of the neck as the first branches from the superior-posterior aspect of the subclavian arteries. They ascend the neck to enter the cranial cavity and supply blood to the brain. Methods: A total of 20 cadavers (in 10 years) were dissected for the study of variations in the origin of the vertebral artery. This study was conducte...
Heterotaxy syndrome or situs ambiguous is a rare congenital disease in which the pattern of anatomical organization of the thoraco-abdominal visceral and vascular structures is not arranged in normal position. Patients with heterotaxy syndrome represent a wide range of anatomical variations including thoraco-abdominal structures. Here we report a rare case of asymptomatic heterotaxy syndrome in...
Background: Several studies have investigated the variations in the anatomy of each segment of circle of Willis whereas a few have addressed the variations of this arterial circle as a whole. In this study the entire circle of Willis and its variations were studied in a cohort of Iranian people and compared with previous reports.Methods: Anatomical variations of the circle of Willis in 132 brai...
ABSTRACT Anatomical variations have great importance among various medical disciplins. The significance of these variations differ from some points of view including system, site and degree of variation. Vascular system is a common site of variations. The importance of this system in supplying the organs, specially the brain has made it to be in focus for its variations. The main sourc...
The cost-effective generation of realistic vegetation is still a challenging topic in computer graphics. The simplest representation of a tree consists of a single texture-mapped billboard. Although a tree billboard does not support top views, this is the most common representation for still image generation in areas such as architecture rendering. In this paper we present a new approach to gen...
Three versions of the Covington algorithm for non-projective dependency parsing have been tested on the ten different languages for the Multilingual track of the CoNLLX Shared Task. The results were achieved by using only information about heads and daughters as features to guide the parser which obeys strict incrementality.
Jim Propp bugs me sometimes. I’m usually glad when he does. Today, Jim’s bugs are trained to hop back and forth on the positive integers: place a bug at 1, and with each hop, a bug at i moves to either i + 1 or i − 2. Of course, it might jump off the left edge; we put two bugcatching cups at 0 and −1. Once a bug lands in a cup, we start a new bug at 1. What I haven’t mentioned is how the bugs d...
Internal iliac artery (IIA) shows frequent variations in its branching pattern. We saw variations in the branching pattern of right IIA in a male cadaver. The IIA divided into anterior and posterior divisions. The branches of the anterior division included umbilical artery, inferior vesical artery, obturator artery. The other branches arose from posterior trunk such as iliolumbar, lateral s...
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