NTU Journal of Pure Sciences

Agrobacterium tumefaciens is a soil-endemic bacterial species that causes crown galls disease on a range of medicinal and economically important plants. In this study, the diagnosis of this bacterium was confirmed by its formation of crown galls on the discs of carot. And when treated in a laboratory with eight different heavy metals (Mo, Fe, Zn, Cu, Cr, Cd, Ni, and Pb), and with ten concentrations (40, 20, 10, 5, 2.5, 1.25, 0.625, 0.312, 0.156, 0.078 mM/ Metal), it was found to have an inhibitory effect on the growth of these bacteria by microtiter plate method, especially when the concentration was increased. The size of the 16S rRNA gene in bacteria resistant to these metals varied at the half inhibitory concentration IC50 from the comparison sample with volume values of about 1500, 1000, 1000, 1500, 1500 , 1500, 1500, 1500, and 1000 base pairs, respectively.

Background: Breast Cancer is a significant cause of morbidity and mortality in developed as well as developing Nations and it play a very important role in the global disease burden. Objective: The aims of this study are to assess the knowledge regarding breast cancer among female students at the university of Mosul. Methods: The participants in this cross-sectional study were 230 college students from the University of Mosul. The research started from (1st of October 2022 to the 1st January2023). Results: In the age (22 – 25) year revealed the highest percentage of study sample was 47.09%, And 227(87.3%) urban residency, single (83.5). The internet was primary sources of information in (30%). All participants reported nipple discharge as a symptom (100%). Conclusion: This study find that the study sample had adequate information on several aspects of breast cancer except low Knowledge about risk Factors.

For the computations of the compounds, the Gaussian 03 software has been applied utilizing (AM1), (HF), and density functional theory (DFT). Four medications have been theoretically assessed to anticipate the pKa values based on the calculations of HOMO, LUMO, DG, DH, and DS parameters. The prediction of the protein-drugs has been carried out using the docking studies. The docking simulations for the drugs with the receptor and parameterization were carried out using the molecular operating environment (MOE) software program. Theoretically, four medications were docked with the COVID-19 protein on a receptor (PDB ID: 6wtt). Four medications have been looked into virtually in an effort to find a possible anti-COVID molecule. The drugs have been molecularly docked with the covid-19 protein (6wtt).

This study was conducted to find out the effect of rearing earthworms O. cyanieum in soil treated with concentrations (100, 250, 500 and 1000 mg / kg) for a period of (7, 14, 21 and 28 days) of rearing, as urea fertilizer had a significant effect on all activities The vital activity measured in the experiment, all worms died at a concentration of 1000 mg/kg after 7 days. There was also a decrease in weight, reaching the highest drop of 0.475 g, and the relative growth rate was 64.62% at a concentration of 500 mg/kg after 28 days. Also, the amount of protein content in the body of worms decreased with increasing concentrations.

Streaming videos from one device to another become more important due to the spread of mobile devices and social media applications. The process of sending video from one device to another have a set of challenges. The video must be delivered in time, otherwise the service quality will decrease. Packet drop and lip synchronization is another challenge that streaming video will encounter. Real Time Protocol (RTP) is a simple, lightweight protocol that used to perform video streaming with low burden. RTP uses User Datagram Protocol (UDP) in video transferring. This paper use streaming video through RTP over homogeneous systems and measure the Packet Loss Rate, Jitter, Out-of-Order Packets, Datagram Size, Packet Delivery Ratio, latency, and throughput. Four experiments were performed with (15, 30, 45, 60) seconds to check the effect on the previous measures. The results show that video jitter increases as streaming time increases, it also shows that latency and throughput doesn’t depend on the streaming period.

This study was conducted to find out the toxic effect of the southern cowpea weevil Callosobruchus maculatus stages when its food was treated with alcoholic extracts of Punica granatum peels. The study showed that the lowest percentage of hatching was 61.26% in the treatment of chickpea seeds with a concentration of 15% of P. granatum peel extract. The treatments had a clear effect on the harmful larval stage , and the highest significant percentage of death was 81.4% in cowpea seeds treated with a concentration of 25%, and all results were significantly different from the control treatment. the mortality rate significantly increased in the pupa stage, and it increased treatment significantly to 46.66% in the concentration of 25%, compared to the, control which amounted to 0%. To find out the effect of the extracts used in the study on the first generation individuals, the egg retention coefficient was calculated.