background it is estimated that survival of children with perinatally transmitted acquired immunodeficiency syndrome (aids) in brazil is around 60 months, and an upward trend has been shown over recent years. the reduction in mortality rates in brazilian children is mainly attributed to the effectiveness of antiretroviral therapy. objectives the aim of this study was to characterize the epidemi...

We prove here a lemma that connects some properties of the so–called “counterexample function” to the P = NP conjecture over the Baker– Gill–Solovay set of polynomial Turing machines to the behavior of the same function “at large,” over the set of all polynomial Turing machines. ∗Partially supported by FAPESP and CNPq. Alternative address for F. A. Doria: Research Center for Mathematical Theori...

This paper presents the results of tests on the weak form of Efficient Market Hypothesis applied to carbon efficient stock market indices of India, the United States of America (USA), Japan, and Brazil and their corresponding market indices which are used as their benchmark indices. In this study, Kolmogrov-Smirnov and Shapiro-Wilk tests are used to test the normality of data. Run test and auto...

BACKGROUND The aim of this study was to analyse the prevalence of undernutrition, overweight and associated factors, before and after the implementation of the Interoceanic Highway. METHODS A population-based cross-sectional study on children under 5 years of age was conducted in the municipality of Assis Brasil, AC, Brazil, in 2003 and 2010. Prevalence of undernutrition was observed by using...

the objective of this work is to elucidate various essential drugs in the brazil, russia, india, china and south africa (brics) countries. it discusses the opportunities and challenges of the existing biotech infrastructure and the production of drugs and vaccines in member states of the brics. this research is based on a systematic literature review between the years 2000 and 2014 of documents...

  Background: The sale of food by street vendors is an activity of economic, sanitary, and nutritional importance, but these foods can pose a high risk to the health of consumers in inadequate conditions of preparation and storage. The aim of this study was to investigate the preparation conditions and the hygienic-sanitary quality of food sold by street vendors in the vicinity of four campuse...

In the last few decades, finding alternatives to fossil fuels has become a hot issue across all international frontiers. The Intergovernmental Panel on Climate Change (IPCC) has shed light on the feasibility of using biofuels to meet the growing energy demand as well as to reduce CO2 emissions which are a major cause of global warming, especially in the transportation sector. The...

Introduction: For 10 years, Brazil has presented a significant flow in cruise ships with 597 011 travelers in 2015. Cruise ships represent a major mass gathering capacity, generating more risk of outbreaks and epidemics. Moreover, visiting several places presents travelers with the possibility of contact with some tropical diseases, which demands the development of specific pol...

the present study reports range extansion of moenkhausia oligolepis to the pindaré river drainage, of the mearim river basin, and itapecuru river basin, maranhão state, northeastern brazil. this species was previously known only from venezuela, guianas, and the amazon river basins. in addition, we present some meristic and morphometric data of the specimens herein examined and discuss on its di...