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Marwa Tammam

Basic information

Name : Marwa Tammam
Title: lecturer of Microbiology and Immunology
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Personal Info: Dr. Marwa Ali- Tammam, PhD, lecturer of Microbiology and Immunology. Ph.D degree in Microbiology, Universidad Complutense de Madrid (UCM), Spain; MSc in Pharmaceutical Sciences, Universidad Complutense de Madrid ; BSc in Pharmaceutical Sciences, Ain Shams University . View More...

Education

Certificate Major University Year
PhD Pharmaceutical Sciences Universidad Complutense de Madrid 2009
Masters Pharmaceutical Sciences Universidad Complutense de Madrid 2006
Bachelor Pharmaceutical Sciences Ain Shams University 2002

Teaching Experience

Name of Organization Position From Date To Date
Misr International University Lecturer at Microbiology Department 01/01/2011 01/01/2012
Misr International University Teacher Assistant 01/01/2002 01/01/2004

Researches /Publications

Complete Atlas For Mechanically Constrained Double 3R Chains - 01/0

Marwa Ali Mohamed Tammam

01/03/2013

In this paper, a new methodology is applied to a mechanically constrain planar parallel robot formed by double 3R chains. This will transform the considered system to 8-bar mechanism. Graphical technique is introduced to enumerate all possible graphs. Then a new structural code is used to detect isomorphism and locked chains. Finally, reverse transformation is applied to construct 8-bar linkages from their corresponding graphs. As a result, a new complete atlas for 8-bar linkages is introduced for the first time, which consists of 39 linkages for independent link connections and 30 linkages for dependent link connections. Two, three and four fixed pivots are included in the proposed atlas. All enumerated linkages are compared with their corresponding kinematic chains introduced by Tsai.

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Nanoparticles Improved Drug Radio Protective Activity - 01/0

Marwa Ali Mohamed Tammam

01/01/2013

Radio protective agents are synthetic compounds or natural products that are immediately administrated before irradiation to reduce injuries caused by ionizing radiation. Toxicity, short duration, and the unfavorable routes of administration, have prevented the widespread use of most radio protective agents in practice. This study aimed to evaluate the use of slowly release-long circulation biodegradable polymer Poly (lactide-co-glycolide) (PLGA) as carrier for certain water soluble radio protective agents. Penicillamine and Potassium lodide (KI) were selected as examples radio protectors which can be used to protect against both internal radionuclide (chronic radiation exposure) and external beam irradiation (acute radiation exposure). Emulsion-solvent evaporation method (ESE) was used to prepare hydrophilic-drug loaded PLGA Nanoparticles (PLGA-NPs) is an efficient and reproducible manner. Results revealed that single oral administration of Penicillamine-NPs or KI-NPs was effective as free drug (for 5 successive days) which indicate that PLGA-NPs could be used to modulate radio protective drug activity in biological system, and to improve drug efficacy in different body organs for longer duration than the equal dose of free drug.

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The Role Of Corporate Governance In Controlling Accounting Data In The Field Of E-Commerce - 01/0

Marwa Ali Mohamed Tammam

01/01/2013

This research paper aims to determine the role of Corporate Governance (CG) in controlling and protecting the accounting data set (including its published financial statements) in electronic commerce activities. Due to the increased technology, change in which global business is done and the continuous revolution of Information Technology (IT), a significant impact on Accounting Information Systems (AIS) is very clear. The internet and e-commerce will only continue to grow if security is enhanced and mutual trust between companies and their customers existed. Moreover, accountants are facing new challenges in the internet era which will expand their duties. The need for investigating this role is apparent due to the need for finding an effective solution for e-commerce problems which affect many systems such as: accounting, legal and tax systems. To achieve the objective of this research, exploring the main prior studies in this field will be done in order to make the relationship of e-commerce accompanied with CG practices more understandable.

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