OJS NTU Journal
Not a member yet
669 research outputs found
Sort by
Organizational ambidexterity as approach for enhancing organizational brilliance : An exploratory study in the Al-Awael Private Schools Group
Get PDF ??? ????? ??? ???? ??????? ?????? ??? ??????? ????????? ??????? ???????? ?? ?????? ????? ??????? ??????? ?????? ????? ?? ???? ??????? ??? ????? ????? ?????? ??? ???? ??? ????? ????? ?? ???????? ???? ??????? ??????? ?????? ??????? ??????? ? ??? ??????( ??????? ????? ? ??????? ?????) ?????? ??????? ????????? ??? ????? ?????? ???????? ??????( ?????? ???????? , ?????? ??????? ????????? ? ?????? ????????) ?????? ????? ????? ?????? ?????? ?? ????????? ?????? ??? ?????? ??????? ???????? ???????? ????????? ??????? ????????? ???? ????? ?????? ?????? ???????? ?? ??? ????? ??????? ?????????? ?? ?????? ?????? ???? ????? ????? ??? ???? ??????? ????? ??????? ??????? ? ?? ?????? ?????? ?????? ????? ?????? ?? ?? ??????? ???? ???? ?????????? ???????? ?? ?????? ????? ??????? ??????? ??????? ????? (133) ??????? ?????? ????????? ??? ??????? ????????? ????? ????? ?? ??? ???????? ? ??? ?? ??????? ???? ?? ???????? ????????? ??????? ???????? ??????? ?????? ????? ? ???? ????? ??? ?????? ?? ??????? ????? ???? ????? ?????? ?????? ??? ??????? ????????? ?????? ??????? ?? ?????? ???????? the research aimed to measure the relationship and impact between organizational ambidexterity and organizational brilliance in the Al-Awaleel Private Schools Group, as one of the most prominent schools in the city of Mosul, where it has drawn a path that distinguishes it from its counterparts, crowned with its success and still continues with its distinguished giving. (Exploring opportunities, exploiting opportunities) were adopted as dimensions of organizational ambidexterity, while the dimensions of organizational brilliance were represented by (brilliance in leadership, brilliance in service and innovation, brilliance in knowledge). The research problem focused on raising a set of questions, most notably the extent of the organization's interest in organizational ambidexterity and organizational brilliance. The research adopted the descriptive analytical approach in presenting the theoretical and analytical frameworks in the practical aspect. As for the research field, it was represented by the Al-Awaleel Private Schools Group. The sample was selected using a comprehensive survey method, amounting to (133) teachers. The researchers relied on the questionnaire form as a main tool in collecting data, and a number of Statistical methods for processing data and testing research hypotheses. The research reached a set of results, the most important of which is the existence of a significant correlation between organizational ambidexterity in terms of its dimensions in organizational brilliance. Keywords : organizational ambidexterity, organizational brilliance, Al-Awaleel Private Schools Group
The Readiness of Organizations for Cyber security Dimensions / An analytical study of the opinions of a sample of employees at the Central Bank of Iraq .. Mosul branch
Get PDF???? ????? ?????? ??? ????? ????? ?????? ????? ??????? ??????? / ??? ?????? ?????? ????? ????????? ?? ???? ?????? ???????? ?? (???? ???????? ??????????? ????? ???????? ??????????? ????? ???????? ??????????)? ?? ?????? ??????? ??? ?????? ?????? ????????? ?? ???? ???? ??????? ?????? ??????? ??????? ??????? ??????? ????????? ?? ?? ?? ????? ??? ?????? ?? ?????? ??????? ????? ???? (199) ??? ??? ???????? ?? ????? ??????? / ??? ?????? ???????? ????????? ????? ???? ?????? ??????? ???? ????????? ???????? ????????? ??? ???????? ???????? ( spss)? ?? ?? ???????? ??? ????????? ??????? (????? ???????? ???????? ????????? ??????? ???????)? ??? ?? ???????? ??? ?????? One-Sample test ??????? ?? ??????? ???? ?????? ?? ??????? ???????? ??? ???? ??????? ???? ?? ?????? ?? ???? ???? ?????? ????? ????? ????????? (???? ???????? ??????????? ????? ???????? ??????????? ????? ???????? ??????????) ?? ??????? ??????? ?????? ??? ??????? ???????.The current research aims to evaluate the level of readiness of the Central Bank of Iraq / Mosul Branch to establish cybersecurity through its dimensions represented by (confidentiality of data and information, availability of data and information, integrity of data and information), as the study relied on the descriptive analytical approach, by constructing a questionnaire to analyze the current capabilities and available infrastructure, through which data was collected from the research sample, which amounted to (199) individuals, who are employees of the Central Bank / Mosul Branch, using the questionnaire, which is the main tool for collecting data, and analyzing it based on the statistical program (SPSS), as descriptive statistics were relied upon (arithmetic mean, standard deviation, relative importance), and the One-Sample test was relied upon to test which dimensions are more available in the field under study, and one of the most prominent results that were reached is that there is a need to enhance the dimensions of cybersecurity (confidentiality of data and information, availability of data and information, integrity of data and information) in the field under study to reach the required level
Seroprevalence of Human Respiratory Syncytial Virus among children with respiratory tract infection in Kirkuk city/Iraq
No full textRespiratory Syncytial Virus (HRSV) causes acute respiratory tract infections (RTIs) in newborns and young children, which can result in serious consequences.. The aim of the study was to investigate the prevalence of HRSV in children below 5 years with respiratory infections and understand its correlations with demographic parameters. The study involved 180 children with RTIs aged between 2 months to 5 years. Serum specimens were collected and screened for HRSV IgM and IgG antibodies using ELISA kits. The Results showed that HRSV IgM antibody found in 37(20.55%), with a significant correlation with age (P<0.05). While, HRSV IgG antibody was positive in 29(16,11%) patients. HRSV IgM positivity was higher among children with allergies (72.97%), asthma (8.11%), bronchitis (18.92%). Also, children living in smoking environment had the highest positivity rate of IgM (62.16%) and IgG (62.07%). High IgM and IgG antibodies were recorded in patients with wheezing chest, and on mechanical ventilator P<0.05. In conclusion, the study demonstrate seroprevlance of HRSV infection in children with RTIs.
Optimizing Path of The Travelling Salesman Problem Through Modified Genetic Algorithms
Get PDFThe Traveling Salesman Problem (TSP) stands as one of the earliest and most pervasive optimization challenges, aiming to streamline the salesman's travel route, ensuring efficiency and avoiding redundancy. With an extensive number of cities to visit and the requirement to find the shortest route, solving the TSP becomes computationally daunting. To tackle this, various approaches are explored, including the genetic algorithm. This study employs a modified genetic algorithm, inspired by biological processes such as population dynamics, crossover, mutation, and natural selection. Introducing a novel intersection approach amalgamating sliding flipping and swapping methods, the study investigates towns with populations ranging from (10,50) to (150,200) across two scenarios. In the first scenario, experiments were conducted with a fixed iterations (10000) and a population is (150), resulting in execution times of (20.00 s), (55.14) s, (37.11 s), and (120.14 s) when choose cities (100,200,10,20), respectively. The other scenario the population sizes of (50) or (100) and iteration numbers of (1000) or (500) were explored. The times needed for solution determination were (01.20 s),( 02.30 s), (02.74 s), and (17.15 s) for cities (10,20,100,200), in accordance. Notably, outcomes indicate a proportional relationship between iteration, population, and the number of cities. When integrating the three techniques, a shorter and faster path is achieved compared to the standard genetic algorithm outcome
Comparison of the Effects of Different Levels of L-Carnitine Supplementation on Growth and Egg Production in Three local Quail Lines Using In Ovo Injection and Dietary Feeding Methods
Get PDFTwo studies were conducted to examine the impact of in-ovo injection and dietary addition of L-carnitine (LC) on the growth and egg laying traits of three lines of local quails: desert, brown, and white. The first experiment involved 480 fertile quail eggs were utilized, on the 14th day of incubation, live embryos inside the eggs were injected in the amniotic fluid with varying doses of L-carnitine (0, 4, 8, and 12 mg dissolved in 100 L of a commercial diluent). In the second experiment, 480 one-day-old, unsexed quail chicks were divided into four experimental treatments included: The first group was given the basal diet (control), while the other groups were provided with the basal diet supplemented with different levels of L-carnitine (150, 350, and 500 mg/kg). The evaluation of statistics indicated that quail lines, in-ovo injection, and dietary supplementation with L-carnitine significantly (p?0.01) influenced all the studied traits, except for the first egg weight. The interaction between quail line and in-ovo injection treatments was only significant at age of maturity. Conversely, the interaction between the quail line and the dietary supplementation had a significant impact on feed intake, feed conversion ratio, and age at maturity. According to the present results, it can be established that both in ovo injection and dietary supplementation of L-carnitine significantly influenced the productive characteristics traits of quails. In particular, the study revealed that a high in- ovo injection dose of 4 mg/100 µL of diluent and a feed supplement at 350 mg/kg feed resulted in improved production efficiency for quail chicks, except for the initial egg weight, there was no statistically significant association between the feed addition and in-ovo injection treatments
Evaluation of the Efficiency of the Plant Urtica dioica L. in Controlling Some Stages of the Greater Wax Moth (Lepidoptera: Pyralidae) Galleria mellonella L.
Get PDFThe results of the study showed the superiority of both the alcoholic and aqueous extracts in recording the highest egg mortality rates at the third and fourth concentrations (100.00 and 93.33%, respectively), while the dry powder recorded (26.67 and 36.67%). As for the mortality of third and fifth instar larvae, the alcoholic extract at the third concentration after 96 hours of treatment, and at the fourth concentration after 72 and 96 hours, recorded a mortality rate of (100.00%). Regarding the mortality rates of the fifth instar, all treatments showed gradually increasing mortality rates, especially the alcoholic extract at the fourth concentration after 96 hours, which gave the highest mortality rate (96.67%). The aqueous extract and dry powder at the final concentration recorded (86.67 and 66.67%, respectively). The pupal mortality rate with the alcoholic extract was (80.00%), while the third concentration of the same treatment recorded (73.33%), which did not differ significantly from the aqueous extract treatment at both the third and fourth concentrations (73.33%). The lowest pupal mortality rate was recorded with the dry powder (26.67%)
The Effect of Preheating on Weld Defect Formation Using X-ray Radiography
Get PDFThe manufacturing of long-section pipes is expensive and demands sophisticated procedures, requiring the assembly of smaller pipes by welding. Welding is essential in the oil and gas sectors and several other industries. A welding procedure was executed on two ASTM A106 grade B pipes utilizing GTAW and SMAW techniques for four layers. Testing identified a transverse crack in a welded joint (Test No-01A) at site 20, measuring 4 mm. A PMI test established the chemical composition of the weld joint. A key factor contributing to cracks is the temperature disparity between the weld zone and the base metal. To alleviate this, the joints were warmed prior to welding, The results showed that preheating the metal before the welding process reduces or prevents the occurrence of cracks by minimizing the temperature gradient between the base metal and the welding temperature. As the PMI test findings revealed discrepancies in the chemical composition of the welded joints prior to and subsequent to welding, attributable to chemical reactions throughout the operation. These findings underscore the influence of temperature and chemical alterations on weld integrity.
Enhancement of small wind turbine efficiency by using nozzle at entrance
Get PDFWind energy is among the most economical energy sources available nowadays. Renewables, such as wind and solar energy, have become key elements of the global energy mix. Wind energy can generate large amounts of electrical energy through wind turbines that exploit the movement of air. In this study, a horizontal-axis wind turbine was simulated to measure its productivity according to the weather conditions of the city of Kirkuk and increase its efficiency when supported by a nozzle. the wind speed equation was applied to the entrance of a wind turbine, and the effect of narrowing the section area was described by a nozzle in front of the entrance to the turbine through pressure and speed distribution lines. The effect of turbine efficiency was studied after supporting it with a nozzle and narrowing the section area. The system was simulated using the ANSYS 2024 simulation program (Fluid Flow CFX). The turbine was designed in the form of a uniformly loaded engine disc to find the most efficient turbine
Quality Strategy and its Impact on Administrative Organizations An Analytical Study of the Opinions of a Sample of Officials of the Divisions and Administrative Units in the Representative Organization of the Ministry of Education in Erbil
Get PDF???? ??? ??????? ?????? ??? ?????????? ?????? ????????? ?? (?????? ??????? ?????? ???????? ?????? ????????) ?????? ?? ????????? ????????? ?? ???? ??? ?????? ????? ???????? ?? ????? ?????? ????? ??????? ?? ?????. ??? ??????? ??????? ??????? ???? ?????? ?? ??? ???????? ???? ?????? ????? ???????? ??? ?? ??????? ??? ???? ????? ?????? ????????? ???????? ???? ????? (28) ????? ???? ?????. ??? ??? ??????? ?? ????? ??????? ????????? ??? ???????? ???????? ????????? ???????? ??????????? ????????? ??????? ???????? ??????? ?? ???? ???????? ??? ???????? ???????? (SPSS)? ??????? ??? ?? ??? ????? ??????? ??? ???? ??? ??? ???????? ??? ????? ??????? (a?0.05) ?? ?????? ??????? ?????? ??????? ??????? ???????? ?? ????????? ????????. ????? ??????? ???? ?? ??????????? ??? ?? ?????: ??? ???? ??? ??? ???????? ??????????? ?????? ?? ????????? ???????? ????? ???? ?????? (69.6%). ????? ??????? ??? ?????? ?? ???????? ???? ?????: ????? ??? ????? ?????? ?????????? ?????? ??? ???????? ?? ????? ?????? ????? ??????? ?? ????? ???????? ?????? ???????? ??????? ?? ????? ????????? ???????? ???????? ?? ????? ????? ???????This study aimed to identify the quality strategy (commitment of senior management to quality, employee participation) and its impact on administrative organizations, from the point of view of divisional and unit officials in the representative organization of the Ministry of Education in Erbil. A special, precise questionnaire form was used by the researchers to achieve the objectives of the study. It was distributed to all members of the sample included in the study, and their number reached (28) division and unit officials. In order to answer the study’s questions and hypotheses, the researchers extracted the arithmetic means, standard deviations, and multiple regression equation by relying on the statistical program (SPSS). Based on the above, the study found a statistically significant effect at the significance level (a?0.05) for senior management’s commitment to quality and employees’ participation in administrative organizations. The study came out with a number of conclusions, including: that there is a statistically significant impact of the quality strategy on administrative organizations at a general rate of (69.6%). The study concluded with a set of recommendations, the most important of which were: the necessity of spreading the culture and improving the quality strategy among the employees of the Ministry of Education Representative Organization in Erbil and introducing them to its foundations and principles and its effects on developing administrative organizations and its importance in achieving the organization’s goals
The Impact of Approved Information and Communication Technology Indicators for Development Purposes on The Gross Domestic Product of Selected Arab Countries for The Period 2007-2021
Get PDFInformation and communication technology (ICT) has a significant impact on all economic sectors through innovation, higher productivity, and economic growth. This research paper seeks to illustrate how specific ICT indicators have influenced the gross domestic product (GDP) of selected Arab nations (Iraq, Jordan, the United Arab Emirates, Saudi Arabia and Morocco) during the period from 2007 to 2021.. The multiple regression model has been used and implemented by Python language. The obtained results demonstrate that the effect of fixed telephone line subscriptions adversely affects the Gross Domestic Product (GDP) in the prementioned countries , while the international bandwidth of the Internet and the Internet Users Index positively affect the GDP in the countries of Saudi Arabia, Jorden and the United Arab Emirates. On the other hand, Morocco was the opposite.