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Medicine, Saudi Arabia

Atram A.R.,Almajmaah University
African Journal of Psychiatry (South Africa) | Year: 2015

Background and Objectives: The high prevalence of psychiatric conditions in the general hospital settings and its demand on the system is well known. The aim of this study was to examine the overall diagnostic trends in psychiatric consultations in the city of Zulfi in Riyadh province and to test the ability of non-psychiatric physicians in proper detection of psychiatric morbidity. Subjects and methods: 113 patients were studied in detail over a period of two years. Results: three psychiatric diagnoses were the most prevalent: (1) neurotic, stress related and somatoform disorders (27.6%) (2) Organic, including symptomatic mental disorder (29.2%), and Mood [affective] disorders (15%). There was significantly high agreement between psychiatrists and non- psychiatric physicians in detecting single psychiatric symptomatology (P<0.001),With higher ability to detect negative symptoms (99.1%) conversion (96.5%-) ; and suicide/para suicide (95.6%), but non-psychiatric physicians showed lower ability to detect cognitive, emotional or psychotic symptoms and a significantly lower tendency in detecting the whole range of psychiatric symptoms. Conclusion: Non-psychiatric physicians, sometimes, over-estimate or underestimate the importance of symptom. Because of the high prevalence of organic / cognitive disorders, neurotic and mood disorders in the general medical sitting, Consultation-Liaison teaching should devote most of its energy towards the identification and management of these disorders. © 2015, Atram. Source

Alharbi T.,University of Surrey | Alharbi T.,Almajmaah University | Regan P.H.,University of Surrey | Regan P.H.,National Physical Laboratory United Kingdom | And 20 more authors.
Nuclear Data Sheets | Year: 2014

We report on the measurement of the half-life of the yrast Iπ=5- state in the transitional nucleus 136Ce using a combined HPGe-LaBr3(Ce) scintillator gamma-ray detection array. The measured value for the E1 decay is approximately half a nanosecond, which corresponds to an E1 decay strength of approximately 2×10-6 Wu. This value is in line with single-particle type E1 decays in this mass region and suggests no sign of additional K-hindrance associated with axially symmetric quadrupole deformations observed for lighter cerium isotopes. © 2014 Elsevier Inc. Source

Yasin S.A.,Benha University | Yasin S.A.,Almajmaah University | El-Dougdoug W.I.A.,Benha University | El-Dougdoug W.I.A.,University of Umm Al - Qura
Journal of Dispersion Science and Technology | Year: 2010

The onset of micelles formations critical micelle concentration, diffusion coefficients as well as particle sizes for some new synthesized anionic copolymer surfactants PSA 4a, PSA 4b, and PSA 4c, were determined and discussed. Three different electrochemical techniques such as cyclic voltammetry (CV), rotating disk voltammetry (RDV), and chronocoulometry (CC) were used in this investigation. The voltammetry of electroactive hydrophobic probe ferrocene solubilized surfactants was investigated in aqueous buffer carbonate solutions of pH 10. The CMC for each PSA 4a, PSA 4b, and PSA 4c, was found to be 3.20×10 -4,4.60×10 -4 and 6.30×10 -4M, respectively, using both CV and RDV techniques. The amount of adsorption contribution of ferrocene solubilized surfactants at the glassy carbon electrode was determined from chronocoulometric measurements and it was found in the range from (1.4 to 2.7)×10 -15M. The apparent diffusion coefficients were estimated from RDV measurements and the real micelles diffusion coefficients were obtained. Re-quilibrium considerations of ferrocene probe kinetics at the electrode surface were treated according to two different modes of slow- and fast-kinetics. The corrected diffusion coefficient values showed constancy at (5.3±0.1)×10 -7, (4.8±0.1)×10 -7, and (3.6±0.4)×10 -7 cm 2/sec for PSA 4a, PSA 4b, and PSA 4c, respectively in the concentration range from 20 to 200 mM. The morphological features of anionic copolymeric surfactants PSA 4a, PSA 4b, and PSA 4c, micelles showed globular self-assembled structure. © Taylor & Francis Group, LLC. Source

Saad K.,Assiut University | El-Houfey A.A.,Assiut University | Abd El-Hamed M.A.,Assiut University | El-Asheer O.M.,Assiut University | And 2 more authors.
Functional Neurology | Year: 2015

This study was conducted to assess the efficacy of oral zinc supplementation in children with intractable epilepsy. Forty-five children aged between three and 12 years and diagnosed with idiopathic intractable epilepsy at Assiut University Hospital, Assiut, Egypt were recruited. The patients were randomly allocated to two groups: the intervention group received oral zinc supplementation (1 mg/kg/day) while the placebo group received placebo, each for six months. The parents of each child filled in a detailed questionnaire that covered demographic characteristics, type of seizures, frequency, duration of seizures, previous hospital admissions, postictal phenomena and the occurrence of status epilepticus. The primary outcome (frequency of seizures) was compared between the two groups. Zinc supplementation resulted in a significant reduction of seizure frequency in 31% of the treated children. Zinc is an important trace element. Our results suggest that it has mildly beneficial effects in children with intractable epilepsy. We recommend further investigation of oral zinc supplementation as an adjunctive therapy for managing intractable epilepsy in children. Zinc therapy may be an option in treatment protocols for intractable epilepsy in the near future. © 2015, CIC Edizioni Internazionali s.r.l. All rights reserved. Source

Alharbi T.,Almajmaah University
Radiation Physics and Chemistry | Year: 2015

The development of compact, battery-powered digital liquid scintillation neutron detection systems for field applications requires digital pulse processing (DPP) algorithms with minimum computational overhead. To meet this demand, two DPP algorithms for the discrimination of neutron and γ-rays with liquid scintillation detectors were developed and examined by using a NE213 liquid scintillation detector in a mixed radiation field. The first algorithm is based on the relation between the amplitude of a current pulse at the output of a photomultiplier tube and the amount of charge contained in the pulse. A figure-of-merit (FOM) value of 0.98 with 450. keVee (electron equivalent energy) energy threshold was achieved with this method when pulses were sampled at 250. MSample/s and with 8-bit resolution. Compared to the similar method of charge-comparison this method requires only a single integration window, thereby reducing the amount of computations by approximately 40%. The second approach is a digital version of the trailing-edge constant-fraction discrimination method. A FOM value of 0.84 with an energy threshold of 450. keVee was achieved with this method. In comparison with the similar method of rise-time discrimination this method requires a single time pick-off, thereby reducing the amount of computations by approximately 50%. The algorithms described in this work are useful for developing portable detection systems for applications such as homeland security, radiation dosimetry and environmental monitoring. © 2014 Elsevier Ltd. Source

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