Kamal Badr Abd. Badr

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The current work is part of a series of epidemiological studies on the extent and patterns of the non-medical use of psychoactive substances by significant sectors of the Egyptian population. A standardized interviewing schedule was especially constructed for the present survey and item re-take reliabilities were established. The interview was conducted on(More)
Although there are several established methodologies in the ontological engineering field, many researchers tend to only loosely couple their ontology development with these methodologies, because the maturity of the methodologies has been questioned. In this chapter, the authors pay special attention to the ontology development process with a particular(More)
The present work is part of a series of epidemiological studies the main aim of which is to shed light on the extent and patterns of the use of substances among various sectors of the Egyptian population. A standardized questionnaire with established item re-take reliabilities was administered to 14,656 male secondary school pupils constituting a 4%(More)
A rapid, simple, sensitive and specific LC-MS/MS method has been developed and validated for the simultaneous estimation of amlodipine (AML), benazepril (BEN) and benazeprilat (BNT) using eplerenone and torsemide as internal standards (IS). The Xevo TQD LC-MS/MS was operated under the multiple-reaction monitoring mode using electrospray ionization. Sample(More)
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