Spectroscopy of high-redshift compact steep-spectrum (CSS) quasars shows a high incidence of Ly-α absorption close to the quasar redshift (zabs ≈ zem). Associated absorption systems like these are rare in other types of radio sources, with the notable exception of high-redshift radio galaxies (HZRGs). CSS quasars and HZRGs share many properties; the hypothesis that they are intrinsically simila...

This paper presents an efficient optimization procedure to find the optimal shapes of double curvature  arch  dams  considering  fluid–structure  interaction  subject  to  earthquake  loading. The optimization is carried out using a combination of the magnetic charged system search, big bang-big crunch algorithm and artificial neural network methods. Performing the finite element  analysis  dur...

Since Holland and Reitman [2] published their CS-1 a great amount of studies concerning classifiers systems (CSs) have appeared. The needs of studying crucial matters in the functioning of CS determined that researchers paid little attention to the evolutionary component of these systems. Nevertheless in the last years GA's have experienced a considerable development that makes necessary to rev...

A classifier system is a machine learning system that learns a collection of rules, called classifiers. Mostly, classifiers can be regarded as simple stimulus-response rules. A first level of learning called credit assignment level, consists of reinforcement learning on these classifiers. A classifier is reinforced in dependence on the result of an interaction between the CS and its environment...

More than 50 years ago connectionist systems (CSs) were created with the purpose to process information in the computers like the human brain (McCulloch & Pitts, 1943). Since that time these systems have advanced considerably and nowadays they allow us to resolve complex problems in many disciplines (classification, clustering, regression, etc.). But this advance is not enough. There are still ...

BACKGROUND Bisphosphonate-associated osteonecrosis of the jaws (BP-ONJ) is an adverse effect of bisphosphonate treatment with varying reported incidence rates. METHODS In two neighboring German cities, prevalence and additional factors of the development of BP-ONJ in multiple myeloma patients with bisphosphonates therapy were recorded using a retrospective (RS) and cross-sectional study (CSS)...

BACKGROUND There is debate regarding the use of stereotactic ablative radiotherapy (SABR) or surgery for patients with early stage non-small cell lung cancer (NSCLC). This meta-analysis compared the clinical efficacy of SABR and lobectomy in stage I NSCLC patients. METHODS An online search identified eight eligible articles (including 2 trials and 7 cohort studies) for inclusion. The odds rat...

PURPOSE To determine whether carotid stenting with embolic protection is equivalent to carotid endarterectomy (CEA) in a broad risk population of patients with symptomatic and asymptomatic carotid stenosis. METHODS A prospective, multicenter Phase I trial was conducted comparing standard CEA to carotid stenting systems (CSS) in patients with symptomatic (> or =50%) and asymptomatic (> or =75%...

churg-strauss syndrome (css) is a small vessel granulomatous vasculitis that characteristically affects the middle age group and is extremely rare in children. we describe an 8-year-old girl with a prolonged history of cough and eosinophilia that initially was labeled as pulmonary tuberculosis, but after complementary assays, associated with skin biopsy, eosinophilic fibrinoid vasculitis, css w...