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Search Results: 1 - 10 of 20405 matches for " Khalid Al Saidi "
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Pediatric Non-Hodgkin Lymphoma: A Retrospective 7-Year Experience in Children & Adolescents with Non-Hodgkin Lymphoma Treated in King Fahad Medical City (KFMC)  [PDF]
Nahla Ali Mobark, Suha A. Tashkandi, Wafa Al Shakweer, Khalid Al Saidi, Suha A. Fataftah, Mohammed M. Al Nemer, Awatif Alanazi, Mohammed Rayis, Walid Ballourah, Othman Mosleh, Zaheer Ullah, Fahad El Manjomi, Musa Al Harbi
Journal of Cancer Therapy (JCT) , 2015, DOI: 10.4236/jct.2015.64033
Abstract:

Background: Non-Hodgkin’s lymphoma is an aggressive malignant disease in children and adolescents. Although it is the fourth most common malignancy in Saudi children as reported in Saudi cancer registry, less information is available about pediatric Non-Hodgkin lymphoma and its outcome in Saudi Arabia. Study Objectives: To provide demographic data, disease characteristics, treatment protocol, toxicity and outcome of treatment in children & adolescents with Non-Hodgkin’s lymphoma treated at KFMC. This study will form base line for future studies about pediatric Non-Hodgkin’s lymphoma in KFMC, which may help to improve outcome for children with cancer in Saudi Arabia. Study Patients and Method: We retrospectively analyzed 28 children and adolescents diagnosed to have Non-Hodgkin’s lymphoma at KFMC between December 2006 and December 2013, followed-up through June 2014. Results: Of the 28 patients, 10 (35.7%) girls and 18 (64.3%) boys, the male-to-female ratio was 1.8; 1. The median age at time of diagnosis was 6.4 years old (range 2.0 to 13.0 years old). The majority of patients (64.3%) were aged between 5 and 12 years old. Burkitt’s lymphoma BL/BLL was the most common pathological subtype (60.7%), and DLBCL was the second most common subtype (21.4%). Abdominal and Retroperitoneal involvement was the most common primary site (78.6%) including the ileocaecal region. Most of the children presented with advanced Stage III and IV (75%), Cytogenetic study which screens specifically for the t (8; 14) (q24; q32) a characteristic genetic feature of Burkitt’s Lymphoma was obtained from 21 patients, variant rearrangement was observed in 3/21 samples and complex chromosomes karyotype in addition to IGH/MYC rearrangement was observed in 2/21 samples. Those patients presented with very aggressive lymphoma and combined BM and CNS involvement. We use the French-American-British Mature B-Cell Lymphoma 96 Protocol (FAB LMB 96) for treatment fornewly diagnosed Mature B-Cell type NHL and high risk ALL CCG 1961 Protocol for lymphoblastic lymphoma and international Anaplastic Large Cell Lymphoma 99 Study Protocol for ALCL. The median follow-up in patients not experiencing an adverse event was 53.1 months. The estimated 3-year EFE and OS rates in the entire cohort of patients with newly diagnosed NHL treated in the KFMC were 85.2% and 89.2% respectively; Overall survival (OS) rate of patients with mature

Are the Criteria for Health and Safety Available in Adjustable Saudi School Furniture?  [PDF]
Khalid Al Saleh, Mohamed Ramadan
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.32027
Abstract: This research investigated the effect of adjustable Saudi chair-table combinations available in the local market on the students' health and safety. Thirty seven young students participated in this research. Ten chair-table combinations, within three different activities (reading, writing, and looking at the blackboard), were the independent variables. Normalized discomfort ratings, and neck dorsal and upper trapezius muscular activities were the dependent variables. Variances among students' body dimensions and classroom furniture were also studied. There were higher levels of neck dorsal and upper trapezius muscular contractions associated with less dimensions of chair-table combinations compared to high dimensions of chair-table combinations. Normalized discomfort ratings at the neck, shoulder, thigh, and feet were significantly higher at high chair-table dimensions. Matched school furniture to the student dimensions was associated with low dimensions of chair-table combinations. The suitability of the local adjustable chair-table combination was not fit to the students’ health. Saudi furniture industry should review and provide the local schools with the most appropriate furniture to Saudi students’ anthropometric dimensions.
Studies on the Antibacterial Activity of Ceftiofur Sodium in Vitro and Birds  [PDF]
Khalid A. Al-Kheraije
Open Journal of Veterinary Medicine (OJVM) , 2013, DOI: 10.4236/ojvm.2013.31004
Abstract: This study was carried out to evaluate the antibacterial activity of ceftiofur sodium as anti-infective chemotherapeutic agent belonged to the third generation of cephalosporins against different bacterial pathogens in vitro and birds. The obtained results showed that it was more effective and superior in its action than that the other compared antibacterial agents. The disc diffusion test revealed that most P. multocida isolates were highly sensitive to ceftiofur sodium with minimum inhibitory concentrations (MICs) ranging between 0.625 - 2.5 μg/ml and minimal bactericidal concentration (MBCs) equal or two folds of the MICs.
Syed Ghulam Shabbir (1923-2002) and His Syndrome  [PDF]
Khalid Al Aboud, Daifullah Al Aboud
Journal of Cosmetics, Dermatological Sciences and Applications (JCDSA) , 2011, DOI: 10.4236/jcdsa.2011.12007
Abstract: Professor Syed Ghulam Shabbir (1923-2002), is one of the Pakistani well-known dermatologists. In 1986, Shabbir and his colleagues described a novel autosomal recessive syndrome, which they called laryngoonychocutaneous syndrome. They reported this condition, in 22 patients in 12 families living in Lahore, Pakistan. This syndrome is characterized by cutaneous erosions, nail dystrophy and exuberant vascular granulation tissue in certain epithelia, especially conjunctiva and larynx. This report sheds light on Shabbir and the syndrome that bears his name.
The Constraints Facing the Application of Full Quality Management to a Company and Soccer Club in Dubai, United Arab Emirates  [PDF]
Mohamed Al Anssari, Sofiene Kaabi, Salim Saidi, Nizar Souissi
Advances in Physical Education (APE) , 2018, DOI: 10.4236/ape.2018.82025
Abstract: This study tries to explore the major obstacles that restrain the idea tough management in soccer clubs and company in Dubai, United Arab Emirates by means of descriptive approaches, namely: surveys and explanatory studies.?The used sample, intentionally volunteered, was selected from 8 football sport’s clubs and companies from Dubai in United Arab Emirates. 1046 people volunteered among technical and management team and also from the board members of the clubs. Data were collected and analyzed using following methods: analyzing previous studies and literature works and questionnaire and personal. The outcomes of the research demonstrated the absence of vision,?the ambiguity of the mission and lack of clarity in pursuing the clubs goals as well as the urgent need of planning training plan for the majority the employees.
Highly sensitive procedure for the determination of ultra-trace amounts of bromate ions in water by dispersive liquid-liquid microextraction combined with UV-Vis spectrophotometry
Hamed Mohammed Al-Saidi
European Journal of Chemistry , 2012, DOI: 10.5155/eurjchem.3.2.202-207.590
Abstract: In the present work, a novel, simple, and green procedure is presented for the determination of bromate ions in water. The method is based upon using tetraphenylphosphonium iodide (TPP+ I ) as an ion pairing reagent and a source of iodide ions that react with bromate to produce triiodide ion (I3 ). The complex ion associate formed between I3 , equivalent to bromate ions, and TPP+ was extracted by dispersive liquid-liquid microextraction. Under the optimum conditions, Beer’s-Lambert law and Ringbom’s plot of the colored complex ion associate were obeyed in the range of 0.01-0.5 and 0.02-0.2 μg/mL of BrO3 at 365 nm, respectively, with a relative standard deviation in the range of 2.1 ± 1.3%. The proposed method offers 0.003 and 0.012 μg/mL lower limits of detection (LOD) and quantification (LOQ) of the bromate ion, respectively. Moreover, the chemical composition and the stability constant of the developed ion associate were found to be [TPP+ I3 ] and 4.43 × 105, respectively. The proposed method was free from most interferences present in many chromatographic, spectrofluorimetric and spectrophotometric methods. The developed method did not need a special treatment of sample for eliminating the interferences prior to the application of DLLME and was successfully used to the analysis of bromate ion in both drinking water treated by ozone and tap water.
Productivity Improvement Model without Increasing Operation’s Risk and Fatigue  [PDF]
Adel Al-Shayea, Abdulaziz El-Tamimi, Khalid Al-Saleh, Khalid Al-Yami
Engineering (ENG) , 2011, DOI: 10.4236/eng.2011.311140
Abstract: Productivity improvement of an operation without increasing operation risk and operation fatigue that increase the needed relaxation allowance is an important subject in process design. This research subject stimulates researchers to focus on improving the productivity of the whole production process by changing the technique of performing significant operations in the process. However, two important issues that affect the implementation of any new technique were not considered in the pervious research works. These are the risk magnitude of the new technique on the workplace environment and the fatigue level that affect human's health. In this paper, a model was developed that maximize the productivity of the production process by selecting the best technique to perform significant process operations among proper candidate techniques that improve these operations productivity while minimizing these operations risk and fatigue.
Plasticization Effect on the Photodegradation of Poly (4-Chlorostyrene) and Poly (4-Bromostyrene) Films  [PDF]
Khalid E. Al Ani, Afrah Essa Ramadhan
Materials Sciences and Applications (MSA) , 2010, DOI: 10.4236/msa.2010.16052
Abstract: The photodegradation of thin films of poly (4-chlorostyrene) and poly (4-bromostyrene) with 265 nm radiation in the presence of oxygen and as a function of irradiation time has been studied mainly using fluorescence, FT-IR, and UV-VIS spectroscopic techniques. The influence of phthalate and terephthalate plasticizers on photo-oxidative degradation was also investigated. Phthalate and terephthalate-plasticizers were found to increase the photodegradation processes in polymeric chains. On the other hand, the intensity of absorption was also found to increase with irradiation time and in the intensity of a new absorption band at longer wavelength. The appearance of new fluorescence bands in the irradiated polymer films can well indicate a possibility of photodegradation of polymer films. In addition, the observed increase in the intensities of the carbonyl and hydroxyl regions of the FT-IR spectra, providing evidence for the photodegradation as well as the photo-oxidation of polymeric chains. The increase in the analyzed ranges was attributed to the formation of alcohols, aliphatic ketones and to the increase in the number of (C=C) that resulted from hydrogen abstraction during chains - scission.
Some Equivalences and Dualities via Static Modules  [PDF]
Salah Al-Nofayee, Syed Khalid Nauman
Advances in Pure Mathematics (APM) , 2011, DOI: 10.4236/apm.2011.16064
Abstract: For a ring A, an extension ring B, a fixed right A-module M, the endomorphism ring D formed by M, the endomorphism ring E formed by , and the endomorphism ring F formed by HomA (B,M), we present equivalences and dualities between subcategories of B-modules which are finitely cogenerated injective as A-modules and E-modules and F-modules which are finitely generated projective as D-modules.
Chemically Modified Cornulaca monacanthaBiomass for Bioadsorption of Hg (II) from Contaminated Water: Adsorption Mechanism  [PDF]
A. Hashem, Khalid A. Al-Kheraije
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.43033
Abstract: Cornulaca monacantha (CM) a desert plant has been utilized as adsorbent material for the removal of Hg (II) ions from contaminated water after treatment with acrylamide in alkaline medium to form carbamoylethylated Cornulaca monacantha (CECM). Three levels of CECM having different nitrogen content were prepared. The CECM samples were characterized by estimating the nitrogen content. The ability of CECM to adsorb Hg (II) was investigated by using batch adsorption procedure. The data of the adsorption isotherm was tested by the Langmuir, Freundlich and Temkin models. The removal of Hg (II) onto CECM particles could be well described by the pseudo-second order model. The adsorption rate of mercury was affected by the initial Hg (II) ion concentration, initial pH, adsorbent concentration and agitation time as well as extent of modification. The adsorption experiments indicated that the CECM particles have great potential for the removal of Hg (II) from contaminated water. The maximum adsorption capacity, Qmax of the CECM towards Hg (II) ions was found to be 384.6 mg/g at 30?C. Similarly, the Freundlich constant, n was found to be 2.03 at 30°C.
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