OBJECTIVE The evaluation of HIV treatment programs is generally based on an estimation of survival among patients receiving antiretroviral treatment (ART). In large HIV programs, loss to follow-up (LFU) rates remain high despite active patient tracing, which is likely to bias survival estimates and survival regression analyses. METHODS We compared uncorrected survival estimates derived from r...

Based on theory of reasoned action (TRA) theoretical framework, this study try to predict individual knowledge sharing intention on higher education institution context. This study also integrate some potential factors (channel richness, psychological forces and organizational climate factors) which supporting individuals' knowledge-sharing intentions Through a field survey of 242 lecturer on p...

in the form of passive seismic methods, broadband seismometers have been used in hydrocarbon exploration. the frequency bandwidth typically studied is in the range of 1–6 hz. the observations on low frequency band of microtremors are used to calculate the spectral ratio of vertical and horizontal components (v/h) and power spectral density (psd). attributes based on the v/h ratio and the psd ha...

the purpose of this research is to determine indicators for innovation survey in the field of biotechnology in iran. in order to achieve this goal, theoretical basics on innovation survey are required to be studied to reach the needed indicators. finally, with a view to the advantages and weaknesses of the innovation survey procedures and also on the basis of a comparative study in the approach...

Context. The COSMOS survey is a multiwavelength survey aimed to study the evolution of galaxies, AGN and large scale structures. Within this survey XMM-COSMOS a powerful tool to detect AGN and galaxy clusters. The XMM-COSMOS is a deep X-ray survey over the full 2 deg2 of the COSMOS area. It consists of 55 XMM-Newton pointings for a total exposure of ∼1.5 Ms with an average vignetting-corrected ...

conclusions twenty years after the original survey, the knowledge and beliefs regarding tmds among experts in this field have not changed significantly. results thirty-four dentists but only three psychologists responded to the survey. therefore only responses from dentists were used in the analysis. overall there was a high level of agreement between the original sample and the current sample....