Transtuberculum / Transplanum Approach to the Suprasellar Area: A Stepwise Approach Abordagem via endoscópica expandida transtuberculum transplanum para a região supraselar: os passos da abordagem Rodrigo Alves de Carvalho Cavalcante1,2,6 Rômulo Alberto Silva Marques2 Vinícius Gonçalves dos Santos3 Renato Mariano Nunes4 Tiago Fernando Scopel5,6 Vladimir Arruda Zaccariotti2 João Batista Arruda2 ...

Recently, research has focused on enabling fair exchange between payment and electronically shipped items. The reason for this is the growing importance of Electronic Commerce and the increasing number of applications in this area. Although a considerable number of fair exchange protocols exist, they usually have been defined for special scenarios and thus only work under particular assumptions...

The language acquisition procedure identifies certain properties of the target grammar before others. The evidence from the input is processed in a stepwise order. Section 1 equates that order and its typical effects with an order of parameter setting. The question is how the acquisition procedure derives the order from input evidence. Section 2 proposes a systematic input reduction for functio...

In this article we study the effects of introducing structure in the input distribution of the data to be learnt by a simple perceptron. We determine the learning curves within the framework of Statistical Mechanics. Stepwise generalization occurs as a function of the number of examples when the distribution of patterns is highly anisotropic. Although extremely simple, the model seems to captur...

This article purports to investigate the relationship – in an empirical way – between the various key performance indicators currently used for the management of call centers in Brazil and customer satisfaction. In this context, a set of call centers rendering services to a telecommunications company will be analyzed in order to verify which of their indicators are positively associated with cu...

The incorrect Supplementary Information file was inadvertently published with this Article. The correct Supplementary Information now accompanies the Article.

Measurements that were taken at appropriate spatial and temporal resolution are important for understanding urban environment. However, due to cost issues, most of current monitoring sensors are sparsely deployed and are not able to provide sufficient spatial resolution. As an alternative solution, low-cost sensors that cost several orders less than the current sensors have been exploited, prov...

Objective: To characterize the mental and physical functioning of subjects admitted to Beitostølen Healthsports Centre, and evaluate whether functioning was improved during rehabilitation. Material and methods: A total of 228 subjects admitted for rehabilitation completed the Medical Outcome Study Short Form 12 (SF-12) on admission and on discharge after approximately 4 weeks. A total of 174 su...

This paper analyses the influence of 13 stylized facts of the German economy on the West German business cycles from 1955 to 1994. The method used in this investigation is Statistical Experimental Design with orthogonal factors. We are looking for all existing Plackett-Burman designs realizable by coded observations of these data. The plans are then analysed by regression with forward selection...

Symbolic regression (SR) is one the most popular applications of genetic programming (GP) and an attractive alternative to the standard deterministic regression approaches due to its flexibility in generating free-form mathematical models from observed data without any domain knowledge. However, GP suffers from various issues hindering the applicability of the technique to real-life problems. I...