Book Review: Radiology where there are no radiologists

"Radiology Where There Are no Radiologists""Manual of Radiographic interpretation for General Practitioners"Palmer, ps., Cockshott, WP., Hegedus v., Samuel, E.:WHO Basic Radiological System WHO,Geneva, 1985 (SFr. 23

Modeling of Meteorological Parameters for Libya

Libya is a developing country with large natural resources. The surface of Libya amounts to 1,775,500 km2 and is the fourth biggest African country. The population of Libya amounts to approximately 5 million and is concentrated on the coastal strips though it is divided among cities, villages, and rural areas, while the desert has some green, sunny, and windy oasis where many tribes live there. Due to the random distribution of the villages and oasis among the vast Libyan area it will be very expensive to provide these remote areas with electric energy from the country's grid of electricity. This reason encourages us to consider renewable energy options such as solar, wind, as alternatives. For successful energy research and applications, weather parameters of Libya (wind speed, sunshine duration, humidity, temperature, rainfall, and global solar radiation) have to be modeled. For solar energy applications, information on global solar radiation for specific sites that have no records of weather data is required. A model based on Angstrom formula using weather data such as sunshine, temperature and humidity of five stations in Libya is described. The criteria of choosing the best formula among all formulae were based on R2 value (coefficient of determination), and the value of modeling efficiency (EFF). We can accept any of equations 2.12,2.19, and 2.20 to predict global solar radiation especially the nonlinear equation 2.20

Childhood and Adolescent Reproductive Tract Tumours in Zaria

Introduction/Context: Reproductive tract tumours are said to be rare in adolescents and children and the malignant variety are particularly rare. Their rarity however may lead to problems as the diagnosis may not be considered and individual clinicians may have insufficient experience to ensure appropriate treatment.Objective: To determine the incidence of reproductive tract tumours amongst adolescents and children in Zaria.Methods: The histopathology reports of all reproductive tract tumours in adolescents and children between January 1995 and December 2004 were retrieved. Information on age, presence of reproductive tract tumour,,and histological diagnosis were analyzed..Results: The total number of reproductive tract tumours seen in this period from all age groups was 527. Tumours from adolescents and children accounted for 7.6% (40). Benign tumours made up 55% (22) while malignant tumours accounted for 45% (18).The most common tumours were the teratomas (Mature 9, Immature 2) and hydatidiform mole, constituting 27.5% (11) each. Age groups incidence; 16 19yrs 62.5% (25), 11 15yrs 25.0% (10) 6 10yrs 10% (4), and 0 -5yrs 2.5% (1).Conclusion: Reproductive tract tumours among adolescents and children are not as rare as previously thought and with a high index of suspicion these tumours can be detected early and prompt treatment instituted

SYNTHESIS OF NEW BORON COMPOUNDS WITH AMOXICILLIN AND SOME OF ITS METAL COMPLEXES WITH USE THEM IN ANTIBACTERIAL, ASSESSMENT OF HEPATOPROTICTIVE AND KIDNEYACTIVITY, ANTICANCER AND ANTIOXIDANT APPLICATIONS

Objective: New ligand ({7-[2-amino-2-(4-hydroxyphenyl)-acetamido-3,3-dimethyl-6-oxo-2-thia-5-aza bicyclo[3,2,0]heptane-4-carboxylic boric anhydride}) with its Co (II), Ni (II) and Cu (II) complexes. And new mixed ligand copper complex was synthesized. Methods: The ligand was synthesized by the reaction of boric acid with amoxicillin (1:1) and the mixed ligand complex has been synthesized by the reaction of the ligand, 4-aminoantipyrine and Cu (II) ion (1:1:1). Results: All studied compounds were characterized by the spectral method: Fourier transform infrared, ultraviolet-visible, thermal analysis (TG and DTG), flame atomic absorption and nuclear magnetic resonance. Also CHNS, melting point, magnetic susceptibility and molar conductivity. Conclusion: According to the obtained data, all complexes were non electrolyte and the geometry was octahedral for all complexes. All synthesized compounds were tested as antibacterial agents against Escherichia Coli, Pseudomonas auroginosa as Gram-negative bacteria (G-) and Staphylococcus aureus epidermis as Gram-positive bacteria (G+). The results showed that copper complexes were more active in (10-2M) than the other compounds. The medicinal applications (hepatoprotective and kidney in serum of mice, histopathological of liver and kidney, anticancer and antioxidant in human cell were studied of the synthesized compounds and gave a good results in all tested

Identification of Sense of Urgency as Critical Success Factor in Implementation of ERP for Educational Sector of Saudi Arabia: A Case Study

Enterprise Resource Planning (ERP) has significant role in operationalization of various activities of organizations in integrated mode. Now, the educational institutions are implementing Enterprise Resource Planning (ERP) practices to gain efficiency and effectiveness in a worldwide competitive environment. This research study highlights the literature on ERP implementation and reveals the sense of urgency as one of the critical success factor for effective and successful implementation of latest technological advancements within higher education institutions of Kingdom of Saudi Arabia. To measure EPR implementation, we have selected a case from Saudi Arabia, and this case will be an evidence of ERP implementation in Saudi Arabia. Project Management is highlighted among various success factors of successful implementation of ERP system in higher educational sector of KSA. This research study is contributing to academic research by providing an empirical evidence to support the theories of CSFs and ERP implementation success

New Fast Transform for Orthogonal Frequency Division Multiplexing

In this paper, a new fast and low complexity transform is introduced for orthogonal frequency division multiplexing (OFDM) wireless systems. The new transform combines the effects of fast complex-Walsh-Hadamard transform (CHT) and the fast Fourier transform (FFT) into a single unitary transform named in this paper as the complex transition transform (CTT). The development of a new algorithm for fast calculation of the CT transform called FCT is found to have all the desirable properties such as in-place computation, simple indexing scheme and considerably lower arithmetic complexity than existing algorithms. Furthermore, a new OFDM system using the FCT algorithm is introduced and its performance has been evaluated. The proposed CT-OFDM achieves a noticeable reduction in peak-to-average-power-ratio (PAPR) and a significant improvement in the bit-error-rate (BER) performance compared with the conventional OFDM.Comment: 12 pages, 8 figures, 1 tabl

Design and implementation of robot control system for multistory buildings

The advancement of technology, make robots have more attention from researchers to make life of mankind comfortable. This paper deals with the design of an itemized control system prepared for window cleaning/maintenance of towers and multistory buildings which can be aided to simulating human activities. These activities (washing, coating, wiping, climbing, and maintenance events) normally achieved by specialized personal. The designed control system was prepared to guide the units of the required job to move freely along the outside surface of a window with a fairly enough area and mediate time for achieving the desired goal. The system design is implemented using Arduino kit, due to facilities in program and control of cleaning windows through infer the stepper motor movement and rotation. The controller has been achieved as real time system (30 msec.), it is done throw control of three stepper motor by taken in consideration the speed of the motors (π/3000 rad/sec) and the time can be adjustable within the cleaning area that the device covering it

Relationship of Organiztional Size and Reward System on Organization Performance of Higher Educational Institution in Palestine

The environment today has become increasingly uncertain for higher learning institutions, execution strategies are very important for any organization in any sector. The success or failure of the learning institutions is very much depending on its ability to understand internal and external forces. The total respondents for this study were 255 from different groups, i.e. high, medium and low management levels from the higher educational institutions in Palestine. A questionnaire was used as a research instrument and for the data collection. The partial least squares-Structural equation model PLS-SEM was used in this study to analyze the data. Keywords: Strategy Execution, Organizational Size, Reward System, Performance

Improving the voltage quality of Abu Hummus network in Egypt

In this paper the performance of the electrical network of Egypt is studied by considering a small part on the network (Abu Hummus city). The transmission network of Abu Hummus city was created for 66 kV, 11 kV, and 0.4 kV in the digital simulation and electrical network calculation (DIgSILENT power factory software) to study the voltage profiles. The load flow operational analysis was performed to obtain the voltage magnitudes at every bus bar. The voltage magnitudes in 11 kV and 0.4 kV networks were 10% to 15% less than the nominal value due to overloading off the transmission lines and the voltage magnitudes in 66 kV was within permissible limits. By using automatic tap-changing transformer or Static VAR System, the main idea of this paper is to obtain the voltage profiles at every bus bar to improve the voltage quality of the networks, so as to achieve better voltage profiles on the low voltage side without much effect on high voltage side under various operating conditions

Comparative analysis of PID and neural network controllers for improving starting torque of wound rotor induction motor

Unlike 3-phase squirrel cage induction motor, starting-up of 3-phase wound rotor counter part can be improved by adding an external resistance to the rotor circuit.Thus, leads to reduce starting current and increase starting torque. In this paper two controllers for 3-phase wound rotor induction motor have been proposed include conventional proportional integral derivative (PID)  controller and the other based on artificial neural network (NARMA-L2). A comparison between these controllers has been conducted. It has been shown that starting torque of the motor has been improved, when utilizing the neural network controller compared to the conventional counter  part. It should be noted that MATLAB/SIMULINK has been used to implement both controllers