Nonlinear system identification (NSI) is of great significance to modern scientific engineering and control engineering. Despite their ability, the existing analysis methods for nonlinear systems have several limitations. The neural network (NN) can overcome some these limitations in NSI, but fail achieve desirable accuracy or training speed. This paper puts forward an NSI method based on adapt...

We demonstrated previously that CD45RA(+) CD4(+) T cells are infected primarily by syncytium-inducing (SI) HIV-1 variants, whereas CD45RO(+) CD4(+) T cells harbor both non-SI (NSI) and SI HIV-1 variants. Here, we studied evolution of tropism for CD45RA(+) and CD45RO(+) CD4(+) cells, coreceptor usage, and molecular phylogeny of coexisting NSI and SI HIV-1 clones that were isolated from four pati...

The role of b -chemokines in HIV infection was evaluated. The kinetics of regulated upon activation of normal T cell expressed and secreted, macrophage inflammatory protein1 a , and macrophage inflammatory protein 1 b production by stimulated T lymphocytes did not differ substantially between HIV-infected (asymptomatic and with AIDS) and uninfected subjects. Maximal production of these b -chemo...

Non-standard interactions (NSI) arise naturally when considering physics beyond the Standard Model. In particular, they can have an important influence in the solar neutrino analysis. The current status of NSI constraints will be discussed and the perspectives of future neutrino experiments will be briefly outlined.

Background and Objectives: Health care workers are under constant exposure to the risk of ooccupational blood-borne infection, which most of the time can be avoided by observing standard precautions. The aim of this study was to assess the knowledge, attitude and practices of health care workers of a sample tertiary care hospital towards occupational exposure to blood-borne pat...

While walking, human beings continuously adjust step length (SpL), step time (SpT), step speed (SpS = SpL/SpT) and step width (SpW) by integrating both feedforward and feedback mechanisms. These motor control processes result in correlations of gait parameters between consecutive strides (statistical persistence). Constraining gait with a speed cue (treadmill) and/or a rhythmic auditory cue (me...

Needle Stick Injury (NSI) is one of the spread abroad and dangerous risks in nurse job that HIV, HCV and HBV are the most common infection which were transferred by blood. The aim of this study was evaluation of the education effect basis of the health belief model of knowledge and behavioral prevention of NSI. This study was a quasi-experimental that 165 nurses were selected incidentally from ...