WWW information access is based on search engines. Most of the users consider a single search engine that they will use whatever their queries are. Additionally, current search engines follow a general framework and they treat all the queries in the same way. In this paper, we present experiments that show that considering variability both in terms of systems and in terms of queries would impro...

This article is a radical restatement of the predominant psychopathology, which is characterized by nosological systems and by its approach towards a neurobiological conception of the so-called mental disorders. The "radical" sense of this restatement is that of radical behaviorism itself. As readers will recall, "radical" applied to behaviorism means total (not ignoring anything that interests...

Data resources have the characteristics of heterogeneity and differentiation; with increasing demand and the development of the scale of application systems, data resources must be constantly enriched and expanded. The traditional data resource management model has been unable tomeet users’ requirements of flexibility, timeliness and expansion in data resource management, which has led to major...

To access the Internet, companies define a Service Level Agreement (SLA) with Internet Service Providers (ISPs). Nevertheless, the current Internet does not assure Quality of Service (QoS), what points toward the concept of network virtualization and software defined network (SDN) to support the Future Internet. Moreover, the initial parameter defined in the SLA could be insufficient if the tra...

BACKGROUND To analyze the results in early (stage I and II) glottic carcinoma of a single institution with a patient-oriented concept. METHODS After diagnostic workup and multidisciplinary counseling, either radiotherapy or CO(2) laser surgery was chosen with respect to the patient's preference. RESULTS Sixty-five patients underwent laser surgery and 75 had radiotherapy. For T1 tumors, the ...

There are diverse theories about the origin of life on Earth. Perhaps it started with an electric spark that generate amino acids and sugars from an atmosphere loaded with water, methane, ammonia, and hydrogen, and over million years, larger and more complex molecules could form. Other possibility is that molecules of life met on clay due to DNA are relatively well preserved in those conditions...

Projects are dealing with bigger stakes and facing an ever-growing complexity. Project risks have then increased in number and criticality. Lists of identified project risks thus need to be decomposed, for smaller clusters are more manageable. Existing techniques are mainly based on a well-known parameter such as the nature of the risk or its criticality. But some limits have appeared since pro...

Finding the sparse representation of a signal in an overcomplete dictionary has attracted a lot of attention over the past years. Traditional approaches such as Basis Pursuit are based on relaxing a nonconvex `0-minimization problem [1]–[3]. In [4], a new polynomial complexity algorithm, ProSparse, is presented. ProSparse solves the sparse representation problem when the dictionary is the union...

Abstract Introduction Long-term follow-ups of untreated patients with adolescent idiopathic scoliosis (AIS) indicate that the consequences of AIS over a lifetime are minimal, sometimes moderate in more severe cases, however, never life-threatening. In light of these findings, the historical indications for treatment should be investigated according to current evidence. This critical review disc...

International standards that define requirements for the development of safety-related systems typically also define required confidence levels for the software tools used to develop those systems. The standards define—to a greater or lesser extent— procedures to classify, validate, certify, or qualify tools. To date, there is no common approach for tool validation, certification, and qualifica...