AIM The aim was to detect the glmM gene of Helicobacter pylori (H. pylori) in cow's milk from different dairy farms in Khartoum State using Nested polymerase chain reaction (PCR). MATERIALS AND METHODS A total of 50 milk samples were collected from different dairy farms in Khartoum State (13 from Khartoum, 24 Khartoum North, and 13 from Omdurman Provinces). RESULTS The generated results sho...

Topic variance has a greater effect on performances than system variance but it cannot be controlled by system developers who can only try to cope with it. On the other hand, system variance is important on its own, since it is what system developers may affect directly by changing system components and it determines the differences among systems. In this paper, we face the problem of studying ...

The effect of the pre-weaning housing system on play behaviour before weaning and agonistic behaviour after weaning and during the fattening period was investigated in 32 litters of domestic pigs. Three preweaning housing systems were compared: poor crate (standard farrowing crate without straw), enriched crate (crate with straw, 20% larger), and, as a control, a farrowing pen (pen with straw, ...

We propose a method of inference for generalized linear mixed models Ž . GLMM that in many ways resembles the method of least squares. We also show that adequate inference about GLMM can be made based on the conditional likelihood on a subset of the random effects. One of the important features of our methods is that they rely on weak distributional assumptions about the random effects. The met...

OBJECTIVE Variability in infant sleep and negative affective behavior (NAB) is a developmental phenomenon that has long been of interest to researchers and clinicians. However, analyses and delineation of such temporal patterns were often limited to basic statistical approaches, which may prevent adequate identification of meaningful variation within these patterns. Modern statistical procedure...

In this talk, I will consider the generalized linear mixed models (GLMMs) with two components of dispersion. The frequentist analysis of GLMM is computationally di cult. On the other hand, the advent of the Markov chain Monte Carlo algorithm has made the Bayesian analysis of GLMM computationally convenient. I use recently proposed data cloning approach, which is computationally convenient, to c...

We find closed form expressions for the standardized cumulants of generalized linear models. This reduces the complexity of their calculation from O(p6) to O(p2) operations which allows efficient construction of second-order saddlepoint approximations to the pdf of sufficient statistics. We adapt the result to obtain a closed form expression for the second-order Laplace approximation for a GLMM...

background and aims: diabetes type ii (non-insulin dependent) which is one of the most prevalent diabetes types in the world emerges in people with the age of above 55 and genetic and environmental factors interfere in this disease. the aim of this study was to determine the factors affecting diabetes type ii with generalized mixed linear model. methods: population of this study included 2820 p...