Abstract Allying technology, theory and engineering practice is one of the main challenges of modern foundation engineering. Current foundation and retaining walls designs may lead to oversizing or undersizing due to the spatial variability of the stratigraphic profile. As the design procedure of piled foundations involves defining the setting depth of the tip, sometimes the piles may not behave as expected, as the soil mass may change significantly even in a small region. In this paper, a study was conducted on the geoenergetic behavior of the soil mass and of the piles of a construction site located in Brasília, DF, Brazil. Previous studies showed that the energy needed to drill a continuous flight auger pile (CFAP) can be related to the strength of the drilled strata. Therefore, a methodological framework was built to further discuss how the geomechanical behavior of CFAPs foundations could be assessed by analyzing the energy needed to drill such piles. Statistical methods, in special the Bootstrap method, were used to assess the possible influences of construction procedures on pile behavior. It was studied how the execution energies of piles vary with initial depth and relative position in the terrain, as well as the influences that they suffer because of the order of execution within a same foundation group and due to the proximity to surrounding retaining walls. The proposed methodology can be used to improve the energy control procedure and performance evaluation of CFAPs, allowing a complementary reliability assessment for the foundation and retaining walls designs and implementations.

RESUMO Objetivou-se sintetizar e avaliar a produção do conhecimento sobre os fatores significativamente associados à fragilidade em idosos hospitalizados. Para isso, foram consultadas as bases de dados Medical Literature and Retrieval System Online (Medline), Literatura Latino-Americana em Ciências da Saúde (Lilacs) e Índice Bibliográfico Español em Ciencias de la Salud (Ibecs), de 2012 a 2016, cuja análise de 20 artigos identificou fatores associados à fragilidade: maior mortalidade hospitalar e após alta, longa hospitalização, reinternação, transferências, idade avançada, sexo feminino e viuvez, além de fatores psicossociais, físicos e/ou funcionais. Espera-se que os resultados da revisão facilitem o aprimoramento de práticas e a tomada de decisão das equipes multiprofissionais que prestam assistência ao idoso no ambiente hospitalar.

ABSTRACT This review aimed to synthesize and evaluate the production of knowledge about factors significantly associated with frailty in hospitalized elderly. Therefore, the Medical Literature and Retrieval System Online (Medline), Literatura Latino-Americana em Ciências da Saúde (Lilacs) and Índice Bibliográfico Español em Ciencias de la Salud (Ibecs) databases were consulted from 2012 to 2016, whose analysis of twenty articles identified the following factors associated with frailty: increased hospital and post-discharge mortality, prolonged hospitalization, rehospitalization, transfers, advanced age, women and widows, as well as psychosocial, physical and / or functional factors. It is expected that the results of the review will facilitate improvement of the practices and the decision-making of the multiprofessional teams that provide elderly care in the hospital.

RESUMO Objetivou-se sintetizar e avaliar a produção do conhecimento sobre os fatores significativamente associados à fragilidade em idosos hospitalizados. Para isso, foram consultadas as bases de dados Medical Literature and Retrieval System Online (Medline), Literatura Latino-Americana em Ciências da Saúde (Lilacs) e Índice Bibliográfico Español em Ciencias de la Salud (Ibecs), de 2012 a 2016, cuja análise de 20 artigos identificou fatores associados à fragilidade: maior mortalidade hospitalar e após alta, longa hospitalização, reinternação, transferências, idade avançada, sexo feminino e viuvez, além de fatores psicossociais, físicos e/ou funcionais. Espera-se que os resultados da revisão facilitem o aprimoramento de práticas e a tomada de decisão das equipes multiprofissionais que prestam assistência ao idoso no ambiente hospitalar.

ABSTRACT This review aimed to synthesize and evaluate the production of knowledge about factors significantly associated with frailty in hospitalized elderly. Therefore, the Medical Literature and Retrieval System Online (Medline), Literatura Latino-Americana em Ciências da Saúde (Lilacs) and Índice Bibliográfico Español em Ciencias de la Salud (Ibecs) databases were consulted from 2012 to 2016, whose analysis of twenty articles identified the following factors associated with frailty: increased hospital and post-discharge mortality, prolonged hospitalization, rehospitalization, transfers, advanced age, women and widows, as well as psychosocial, physical and / or functional factors. It is expected that the results of the review will facilitate improvement of the practices and the decision-making of the multiprofessional teams that provide elderly care in the hospital.

ABSTRACT: This paper presents a preliminary study of the Radar Cross Section (RCS) reduction on the fighter aircraft. First, it was studied the RCS of the aircraft from computational simulations based on prior knowledge of vulnerable areas of this aircraft to radar threats. Subsequently, the possible applications of Radar Absorbing Materials (RAM) on the surface of the aircraft were evaluated, in order to reduce its RCS. The absorber material used in the simulations was denominated FC70, which has good attenuation in the range of 10 to 12 GHz. The study of this reduction was accomplished by applying RAM in four different scenarios at the frequency of 11.1 GHz, where the material is more sensitive. The RCS simulations of the fighter aircraft and its RCS reduction by RAM application were carried out with the support of the software "Computer Simulation Technology" (CST), version 2012. Such technology makes it possible to simulate the application with an absorber material layer on the surface of the aircraft. For the study of the RCS reduction on the fighter aircraft, it was first necessary to develop a detailed 3D model of the fighter aircraft, and it was developed with the software "Computer Aided Three-Dimensional Interactive Application" (CATIA). In conclusion, it is impossible to make much progress attempting to retrofit stealth onto a conventional aircraft because if the shape is wrong, no amount of absorbing material treatments will reduce the RCS.