The class of H-matrices, also known as Generalized Diagonally Dominant (GDD) matrices, plays an important role in many areas applied linear algebra, well a wide range applications, such dynamical analysis complex networks that arise ecology, epidemiology, infectology, neurology, engineering, economy, opinion dynamics, and other fields. To conclude the particular system is (locally) stable, it s...

OBJECTIVES Behaviour change interventions often target 'important' beliefs. The literature proposes four methods for assessing importance of attitudinal beliefs: elicitation frequency, importance ratings, and strength of prediction (bivariate and multivariate). We tested congruence between these methods in a Delphi study about selective decontamination of the digestive tract (SDD). SDD improves...

Background Vulvovaginal candidiasis (VVC) is considered as a pervasive gynecological problem among women worldwide. Owing to this fact, in the current study, we aimed at assessing the prevalence rate of Candida spp. causing VVC in symptomatic pregnant women and their antifungal susceptibility pattern. Methods This study was carried out in the tertiary care hospitals of Peshawar during the per...

INTRODUCTION Colonisation of the lower respiratory tract with Candida species occurs in 25% of mechanically ventilated critically ill patients, and is associated with increased morbidity. Nebulised amphotericin B has been used to eradicate Candida as part of selective decontamination of the digestive tract (SDD) protocols, but its effectiveness is unknown. We aimed to determine the effectivenes...

Many children are at risk of not achieving their full potential for development. Epidemiological studies have the advantage of being able to identify a number of associated factors potentially amenable to intervention. Our purpose was to identify risk factors for suspected developmental delay (SDD) at age 2 years among all children born in the city of Pelotas, Brazil, in 2004. This study was pa...

Knowledge compilation is a rewriting approach to propositional knowledge representation. The ‘knowledge base’ is initially represented as a cnf for which many important types of queries are np-hard to answer. Therefore, the cnf is compiled into another representation for which the minimal requirement is that the clausal entailment query (can the given partial assignment be extended to a complet...

We show that Laplacian and symmetric diagonally dominant (SDD) matrices can be well approximated by linear-sized sparse Cholesky factorizations. Specifically, n × n matrices of these types have constant-factor approximations of the form LL , where L is a lowertriangular matrix with O(n) non-zero entries. This factorization allows us to solve linear systems in such matrices in O(n) work and O(lo...

External SDD systems can also replace Si(Li) detectors on existing microscopes and offer many of the advantages of the in-situ SDD systems. Since the SDDs do not operate at liquid nitrogen temperatures, the insulation gaps in the nosepiece/collimator assemblies can be reduced or eliminated. Also, the detector window and the associated support frame are no longer used. This means that the detect...

The UUIS consists of six functional modules supplemented by a presentation layer. The presentation layer is in charge of parsing through the data to be displayed and outputting the relevant information as described in the requirement specification, while the logic layer will be divided into six modules. The database layer consists of a 20-table database. An Apache 2.2 server will parse through ...