Today, the availability of digital geo-data is increasing rapidly throughout the world, a trend that undoubtedly will continue for the foreseeable future. Among the large geo-data sets available to cartographers are digital terrain models, as well as accurate topographic and thematic data sets about countless physical, social, and economic phenomena. In addition to their geographic coverage and...

The notion of an extremal self-dual code has been introduced in 1 . As Gleason 2 remarks onemay use invariance properties of the weight enumerator of a self-dual code to deduce upper bounds on the minimum distance. Extremal codes are self-dual codes that achieve these bounds. The most wanted extremal code is a binary self-dual doubly even code of length 72 and minimum distance 16. One frequentl...

BACKGROUND Wolff-Parkinson-White (WPW) syndrome and idiopathic left ventricular tachycardia (ILVT) are rare and up to now the coexistence of both entities has rarely been reported. In patients with ventricular preexcitation the underlying mechanism of paroxysmal tachycardia most likely is atrioventricular reentrant tachycardia (AVRT). However, without ECG documentation of the tachycardia diagno...

Spectrum sensing is one of the most crucial tasks of cognitive radio (CR). Even though energy detector has very critical drawbacks in spectrum sensing, it still provides some theoretical insight into the problem from the perspective of both sensing performance and computational complexity of the scenarios considered. However, the theoretical performance of energy detector requires a deeper unde...

EEthylene polymerization catalysts became available in an enormous variety. The challenge in this research is to find catalysts that are able to connect ethylene molecules in such a way that not only linear chains are produced but variations like branched materials that possess very interesting mechanical properties like linear low density polyethylene (LLDPE). In this contribution, three diffe...

1 2 Christophe BEAULOYE , Sandrine HORMAN & Luc BERTRAND 3 4 Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Pole of 5 Cardiovascular Research, Brussels, Belgium; Cliniques Universitaires Saint-Luc, Division of 6 Cardiology, Brussels, Belgium 7 8 9 Address for correspondence: Luc Bertrand 10 Pole of Cardiovascular Research 11 Institut de Recherche Expérimental...

We give a local deformation theoretic proof of Farkas’ conjecture that a principally polarized complex abelian variety of dimension 4 whose theta divisor has an isolated double point of rank 3 at a point of order two is a Jacobian. The argument yields an explicit local normal form for the theta function near such a point. The proof depends only on the facts that the theta function is even, a ge...

NCA wishes to issue globally unique and persistent IDs to digital resources and assign relevant organizations as its registration agencies under the Universal Content Identifier (UCI) scheme. It is beneficial for NCA, its registration agencies, and the value chain players in e-commerce, to have the UCI URN namespace, under which all the contents and components produced and managed by NCA are di...

Emails, SMS, Chat transcripts and Social Network Messages play a vital role in present day‟s communication. These digitally communicated data sets are different from well typed English documents like books, news papers ...Etc in 2 ways. One is the use of acronyms instead of typing full form of the term and another one is the existence of misspelled words. Because of these reasons, information r...