Despite the large number of proposed countermeasures against control-flow hijacking attacks, these attacks still pose a great threat for today’s applications. The problem with existing solutions is that they either provide incomplete probabilistic protection (e.g., stack canaries) or impose a high runtime overhead (e.g., bounds checking). In this paper, we show how the concept of program-part d...

In this paper, we define duplication corona, duplication neighborhood corona and duplication edge corona of two graphs. We compute their adjacency spectrum, Laplacian spectrum and signless Laplacian. As an application, our results enable us to construct infinitely many pairs of cospectral graphs and also integral graphs.

Received 5 July 1995 Revised version accepted for publication 23 October 1995 Abstract True isochromosomes for Xp probably do not exist in a liveborn. We describe a rare case of complete Xp duplication and retention of the inactivation centre at Xql3. Cytogenetically, it is described as a nonmosaic 46,X,psu idic(X)(ql3). Complete duplication ofXpter-Xql3 was confirmed by banded analysis and FIS...

The craniofacial anatomy of an infant with facial duplication is described. There were four eyes, two noses, two maxillae, and one mandible. Anterior to the single pituitary the brain was duplicated and there was bilateral arhinencephaly. Portions of the brain were extruded into a large frontal encephalocele. Cases of symmetrical facial duplication reported in the literature range from two comp...

Received 5 July 1995 Revised version accepted for publication 23 October 1995 Abstract True isochromosomes for Xp probably do not exist in a liveborn. We describe a rare case of complete Xp duplication and retention of the inactivation centre at Xql3. Cytogenetically, it is described as a nonmosaic 46,X,psu idic(X)(ql3). Complete duplication ofXpter-Xql3 was confirmed by banded analysis and FIS...

Dear Editor, Oesophageal duplication cysts are rare congenital maldevelopments of the posterior primitive foregut and mostly present in childhood.1 Patients usually present with dysphagia and sometimes chest discomfort. Complete surgical excision is the standard treatment. In this case report, we describe a laparoscopic transperitoneal approach to surgical excision of a duplication cyst of the ...

In an infant presenting with a mass in the abdomen and non-bilious vomiting, duplication cyst needs to be considered in the list of differential diagnoses. Gastric duplication cyst is an uncommon occurrence in children. Diagnosis is based on clinical findings and imaging features. Surgical excision is safe and offers a complete cure. The literature recommends excision even in asymptomatic cases...