This study examines the efficiency of EPI cluster sampling in assessing the prevalence of diarrhoea and dysentery. A computer was used to simulate fieldwork carried out by a survey taker. The bias and variance of prevalence estimates obtained using EPI cluster sampling were compared with those obtained using simple random sampling and cluster (stratified random) sampling. Efficiency ratios, cal...

Much attention has been given to sampling design, and the sampling method chosen directly affects the sampling accuracy. The development of spatial sampling theory has lead to the recognition of the importance of taking spatial dependency into account when sampling. This text uses the new Sandwich Spatial Sampling and Inference (SSSI) software as a tool to compare the relative error, coefficien...

Consider an n-vertex, m-edge, undirected graph with integral capacities and maxflow value v. We give a new Õ(m + nv)-time maximum flow algorithm. After assigning certain special sampling probabilities to edges in Õ(m) time, our algorithm is very simple: repeatedly find an augmenting path in a random sample of edges from the residual graph. Breaking from past work, we demonstrate that we can ben...

As an alternative to the traditional sampling theory, compressed sensing allows acquiring much smaller amount of data, still estimating the spectra of frequency-sparse signals accurately. However, compressed sensing usually requires random sampling in data acquisition, which is difficult to implement in hardware. In this paper, we propose a deterministic and simple sampling scheme, that is, sam...

background success of screening programs depends on the people belief toward the importance and necessityof these programs . this study was conducted to determine the effect of health belief on participation of official administrative personnel of shiraz university of medical sciences with an average risk (age: 40 years) for colorectal cancer in fecal occult blood test (fobt). materials and met...

conclusions reminiscence therapy decreased depression among diabetic female patients after the intervention and one month after the intervention. it can be said that, through the reminiscence therapy, patients’ past memories were reviewed and emphasis on the positive aspects thereof in the group setting was followed by an increased sense of self-worth and a decrease in depression. background di...

This paper reports some initial investigations of the use of antithetic variates in perfect sampling. A simple random walk example is presented to illustrate the key ingredients of antithetic coupling for perfect sampling as well as its potential benefit. A key step in implementing antithetic coupling is to generate random variates that are negatively associated, a stronger condition than negat...

the sampling method is simple random sampling. in order to measure women's social adjustment social adjustment scale (sas) was used.there is a significant relationship between women and motherhood in social attitudes. consensual relationships between people and tends to be a mother, there is a significant relationship. the social adjustment of status after marriage roles as wives and mothe...