Univesity of Thi-Qar Journal

The concept of competitive advantage in terms of meaning refers to the characteristics that distinguish the organization from other competing organizations and achieve a strong position towards the different parties. Research to shed light on the most prominent internal and external obstacles that limit the acquisition of competitive advantage by applying to a sample of commercial banks operating in the city of Nasiriya to identify these obstacles and find appropriate solutions to them, by relying on a questionnaire distributed to the members of the research sample to obtain the most important data related to the research, and using the program The statistician (SPSS) analyzed these data to reach the required results and then develop the necessary solutions and proposals for this, enabling bank departments to gain competitive advantage, growth, survival and continuity in the labor market, which only recognizes the superior

There are many and varied working conditions very important for the researcher. In this work, two of these conditions and their change effects on the radioactive measurement were studied, time and temperature. Seven powder samples of the most commonly spices which used in the Iraqi kitchens were collected from different markets. The radioactive spectrum of each sample is taken by using NaI(Tl) detector have crystal of (3×3) inch, then the specific activity were calculated with two times, 3 hrs. and 24 hrs. and compared with their effect on the samples. The results shows that the specific activity values of the three nuclides 40K, 214Bi and 208Tl decrease with the increasing of measurement time. This result leads to whenever the time of measurement is higher the specific activity is lower, therefore, the measurement at 24 is more suitable for all radioactivity measurements for low radioactive materials like spices.
With respect to the temperature change, the measurements, hence specific activity were estimated in Summer and Winter seasons. The results show that all the specific activity values of the nuclide 40K increase with the decreasing of measurement temperature, while It is the opposite behavior for the nuclides 214Bi and 208Tl. All these increasing and decreasing behavior are very slight, therefore, the changing of temperature or weather of measurement for low radioactive materials has no significant effects on the results.

Schools and universities have been adversely affected by the widespread distribution of COVID-19 and related quarantine around the worlds. As a result of this distribution, most of these institutions have deployed online teaching platforms as an alternative to students' physical attendance. However, the usages of recent online technologies have provided extra communication channels in addition to e-learning media. Data availability and accessibility have made it possible to conduct online searches. Studying the students' performance in the online examination is conducted to determine the degree of similarity and groups of students who shared similar behavior. The K-Means clustering model has been implemented on the tf-idf representation of the retrieved online corpus. The study concludes that students fall into five distinguished groups (i.e. small communities) based on similarity in performance of sharing the same significant content over the different courses. A larger corpus (document collection) of the complete academic performance of students at different levels (as future work) would help refine more accurate groups of collaboration among students.

In recent years, bacteriophages have piqued interest as a potential alternative antimicrobial therapy for bacterial infections. Because phage therapy is the most promising biological remedy of this period, its therapeutic success is a source of concern. Hence, the present study was aimed to isolate the potential bacteriophages against Escherichia coli O111 fromt sewage samples and to analyze their lytic and morphological traits. Bacteriophages were isolated from swage samples using the double agar overlay method. Isolated phages were purified by diluting in the SM-buffer and filtering through 0.22 μm filter. After purification through glycerol gradient The two phages (named P1 and P2) were visualized by transmission electron microscope , both phages appeared to belong to Myoviridae characterized by icosahedral heads, necks and contractile tails with tail fibers. The two phages were resistant to pH from 5 to 9 to an acidic and alkaline environment. Therefore, these phages may be utilize as biocontrol agents alternative for antibiotic but certainly further studies (especially whole sequencing and bioinformatic analysis of the phage genomes) are required as well as assessment of their activity in animals particularly cattle which are major reservoirs of this pathogens.