Work Fatigue Determination of Nurses in Hospital of Hasanuddin University

This study aims to determine the effect of body mass index (BMI), sleep patterns, working years, physical workload, mental workload, and work time on work fatigue on nurses at Hasanuddin University Hospital Makassar. This research is a quantitative study with a cross-sectional design with a sample size of 56 people. Sampling using a simple random sampling method. Data collection was carried out by means of a questionnaire. Bodyweight is measured by weight scales, body temperature is measured by microtoice, and physical workload is measured by a pulse oximeter, which is by looking at the pulse of the nurse before and after work. Data analysis in this study used the SPSS program. The results of this study indicate that there is an influence between Body Mass Index (BMI) on work fatigue (p = 0.001), there is an effect of sleep patterns on work fatigue (p = 0.019), there is an effect of tenure on work fatigue (p = 0.017), the relationship between physical workload and work fatigue (p = 0.000), there is an effect of mental workload on work fatigue (p = 0.000) and there is an effect of length of work on work fatigue (p = 0.017). The physical workload is the variable with the greatest influence on work fatigue on nurses at Hasanuddin University Hospital Makassar with Exp. (B) = 14,526. The results of this study concluded that there was a significant influence between the Body Mass Index (BMI), sleep patterns, years of work, physical workload, mental workload, and length of work for nurses at Hasanuddin University Hospital Makassar.

Some Solutions for Unsteady Flow of Viscous Fluids over an Infinite Plate and in Pipe-Like Domains

The velocity profile and the associated tangential stress corresponding to the oscillatory flow of Maxwell fluid with non-integer order derivative, within double infinite circular cylinders,areobtainedwiththehelpofthemethodsofLaplaceandfiniteHankeltransformations. Moreover, the exact solutions for the rotational flow of Oldroyd-B, Burgers’ and generalized Burgers’ fluids, passing through the single circular cylinder with fractional order rate of change, are derived by using the integral transform methods. At first, we assumed there is no motion (in these different fluids) and afterward the motion is due to the oscillatory movement of the inner cylinder for Maxwell fluid and for the Oldroyd-B fluid the motion is due to the effect of shear stress exerted from boundaries. Similarly, for theBurgers’andgeneralizedBurgers’fluids,therotationalmotioniscreatedthroughfixed axis of rotation of the circular cylinder with an unsteady angular velocity. These solutions are in series form in the terms of the generalized Ga,b,c(.,t)-function. The corresponding obtained solutions can be easily specified to the similar solutions for Burgers’, OldroydB, Maxwell, second grade and Newtonian fluids respectively. Conclusively, the impact of the physical and fractional parameters on the fluid motion and their co-relations are presented by several graphical interpretations. The MHD flow of Burgers’ fluid flowing through porous material pipe under the effect of pressure gradient is also solved by using dimensionlessvariabletechnique. Theeffectofphysicalparametersarealsoshowngraphically. Furthermore, the first order uniform chemical reaction of a viscous incompressible unsteady flow of fluid passing on an oscillatory infinite long vertical plate is studied. The modified temperature and uniform mass diffusivity are taken for the problem of the plate oscillationaboutitsmainaxisoftheposition. TheLaplacetransformationprocess/method is used to obtained the analytical solutions for the non-dimensional governing equations. The variation in the velocity, temperature and concentration is investigated through detailed graphical analysis.