Censored data are characteristics of many bioassays in HIV/AIDS studies where assays may not be sensitive enough to determine gradations in viral load determination among those below a detectable threshold. Not accounting for such left-censoring appropriately can lead to biased parameter estimates in most data analysis. To properly adjust for left-censoring, this paper presents an extension of ...

From a rare events perspective, scheduling disciplines that work well under light (exponential) tailed workload distributions do not perform well under heavy (power) tailed workload distributions, and vice-versa, leading to fundamental problems in designing schedulers that are robust to distributional assumptions on the job sizes. This paper shows how to exploit partial workload information (sy...

ABSTRACT Bovine clinical mastitis caused by Staphylococcus spp. is a serious and widespread disease in the world of dairy farming. Antimicrobial therapy fundamental importance prevention treatment infectious mastitis, but indiscriminate use antimicrobials acts as determining factor for spread disease. The present study evaluated resistance profiles 57 isolated from bovine to beta-lactams gentam...

Design of a thermally comfortable indoor environment requires detailed information about distribution of air velocity, air temperature, relative humidity, and mean radiant temperature and about heating/cooling load in a space. This research has developed a coupled airflow-and-energy simulation program to calculate simultaneously the distributions of indoor airflow and thermal comfort and heatin...

Location-based services for mobile devices, such as route-planners, access data with spatial and temporal characteristics. How to balance the workloads for location-based services is an open problem. To investigate viable load-balancing mechanisms, we designed, implemented and measured a distributed, spatial cache overlay for two-dimensional, geographic data. In this paper, we describe an exper...

Formation flight can result in large induced drag reductions. Optimum spanloads for a group of aircraft flying in an arrow formation were found using a discrete vortex method with a Trefftz plane analysis under constraints in lift, pitching moment and rolling moment coefficients. It has been shown that large reductions in induced drag can be obtained when the spanwise and vertical distances bet...

It is generally accepted that performance-based design has to be reliability-based. Seismic performance evaluation is based on nonlinear dynamics and reliability theory taking into account uncertainties during analysis. Considering the economic importance of jacket type offshore platforms, the present research aims to assess the seismic performance of offshore steel platforms. In this study, th...