Univesity of Thi-Qar Journal

Researchers are interested in improving the XML database management system using an indexing system by labelling XML nodes. They proposed many labelling schemes to be equivalent to the indexing system of the relational database management system. There are many algorithms that have been suggested for efficiently assigning labels to XML documents in a small amount of storage space. But, the majority of the models concentrated on assessing the effectiveness of proposed labelling schemes. The pertinence of a labelling technology with a certain pattern of XML database has not been adequately inspected. For analysing this point, several experiments were carried out have been executed to label different XML data structures using Containment and Dewey labelling schemes. The requirements of time and space have been taken into account to measure the relevance of the labelling scheme to a specific structure of XML document. It was discovered that both schemes are relatively efficient when allocating labels for a shallow structure of an XML tree. Both schemes are efficient, however, the former for short tree and the latter for wide tree.

The purpose of this paper is to identifying the differences between the values of some biomechanical indicators of the skill of spiking in volleyball between local players and professional players in Premier League clubs , and identifying the relationship between some biomechanical indicators and the performance accuracy of some offensive skills in volleyball among local and professional players in the Iraqi Premier League clubs. The researchers used the descriptive method in the survey method, the comparative method, and the correlations, which is consistent with the nature of the research problem. research community represented by the players of the Iraqi Premier League clubs in volleyball who qualified for the Golden Square, which numbered (56) players for the sports season (2022/2023), was identified. As for the research sample, it was chosen by the intentional method as well, and they are the players of the clubs (Erbil, South Gas, Peshmerga, Al-Shorta), and their number is (12) players (6) professional players (6) local players, and they represent (21.42%) of the community. the origin. One of the most important results reached by the researcher is that: The values of the momentum index and kinetic energy achieved by the professional players are due to the mass and velocity index, as the mass and velocity values of the professional players were higher than the local players in the spiking skill. One of the most important recommendations recommended by the researchers is that: Necessity of emphasizing by the coaches on developing the values of the biomechanical indicators of the skill of spiking for the local players. Which showed a clear decrease in all biomechanical indicators compared to professional players.

The present study was carried out in October 2021 to March 2022 to determine the prevalence of
pathogenic bacteria in the middle ear effusions of patients with OM by way of direct culture , as
well as to determine the resistance of these bacteria to antibiotics, represent patients referred to
the Al-Haboby Teaching Hospital at Thi-Qar province. their bacterial culture were performed
according to standard techniques. This study was conducted on 30 ear swab.
The prevalence of otitis media infection in this study was 90% as indicated by positive ear
swab culture, the infections were distributed as the following: females 93.8% were higher than
males 85.7%. with no significant differences (P≤0.01).The present study revealed four type of positive and negative gram stain bacteria were infect
otitis media patient,the highest percentage of infection was with Pseudomonas aeruginosa
(48.14%) followed by Proteus (25.92%) , Staphylococcus aureus(18.51%) and the lowest
percentage of infection was with E . coli (7.40%) .
Children are more likely to suffer from otitis media than adults are. Adult infections were
caused by tobacco smoke exposure, seasonal variations in respiratory infections, and allergies.

In this work new scenario for the construction of original models of gene expression has been introduced and then studied theoretically and numerically considering effect of discrete time delay in the process. The dynamical behavior of the model has been studied using stability and bifurcation analysis. New findings have been presented and discussed in more details