Associate to each sequence A of integers (intending to represent packet IDs) a sequence of positive integers of the same length M(A). The i’th entry of M(A) is the size (at time i) of the smallest buffer needed to hold out-of-order packets, where space is accounted for unreceived packets as well. Call two sequences A, B equivalent (written A ≡FB B) if M(A) = M(B). We prove the following result:...

Spectrum scarcity is becoming a serious issue due to the rapid development of wireless communication technology. Dynamic spectrum sharing can effectively improve the spectrum usage by allowing secondary unlicensed users (SUs) to dynamically and opportunistically share the spectrum with primary licensed users (PUs). In this paper, we investigate a spectrum negotiation mechanism under incomplete ...

In the case of on-line action role-playing game, the combat strategies can be divided into three distinct classes, Strategy of Motion(SM), Strategy of Attacking Occasion (SAO) and Strategy of Using Skill (SUS). In this paper, we analyze such strategies of a basic game model in which the combat is modeled by the discrete competitive Markov decision process. By introducing the chase model and the...

Tradicionalmente los usuarios han demandado cierto nivel de personalización en los sistemas software para adaptarlos a sus gustos. Con el tiempo se ha incrementado el nivel de integración de estos sistemas en la vida cotidiana de los usuarios, a la vez que han crecido las exigencias de personalización. Hoy en día, con sistemas que envuelven completamente a los usuarios, podemos hablar del conce...

This paper discusses the indications for spinal ultrasound, including its advantages and disadvantages compared with spinal MRI. The features and ultrasound findings both in normal infants and in those with spinal dysraphism are reviewed. Spinal ultrasound (SUS) is becoming increasingly accepted as a first line screening test in neonates suspected of spinal dysraphism (SD) [1, 2]. SUS can be us...

The present article aims to discuss how the so-called health regions have been organized in Brazil since the respective governing ruling was issued (NOAS - SUS 01/2001). In order to clarify this new context, the author emphasises such concepts as region and geographic scale. The regional division under this ruling is based on the regional planning concept underlying the country's territorial po...

This paper presents a preliminary English corpus study of split utterances (SUs), single utterances split between two or more dialogue turns or speakers. It has been suggested that SUs are a key phenomenon of dialogue, which this study confirms: almost 20% of utterances were found to fit this general definition, with nearly 3% being the between-speaker case most often studied. Other claims/assu...

An achiral monomeric surfactant (sodium 10-undecenyl sulfate, SUS) and a chiral surfactant (sodium 10-undecenoyl L-leucinate, SUL) were synthesized and polymerized individually to form poly-SUS and poly-SUL. These surfactants were then copolymerized at various molar ratios to produce a variety of copolymerized surfactants (CoPSs), possessing both achiral (sulfate) and chiral (leucinate) head gr...

We evaluated the sensitivity of the dengue surveillance system in detecting hospitalized cases in ten capital cities in Brazil from 2008 to 2013 using a probabilistic record linkage of two independent information systems hospitalization (SIH-SUS) adopted as the gold standard and surveillance (SINAN). Sensitivity was defined as the proportion of cases reported to the surveillance system amid the...

The Brazilian Unified Health System (SUS) was created 15 years ago with the aim of promoting universal access to health care. This study analyzes the content of social representations by health professionals from Rio de Janeiro concerning the system's implementation. The study was based on social representation and social memory theory and was conducted in five health care institutions with 100...