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Search Results: 1 - 10 of 9198 matches for " Ahmed Kamaly "
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Does FDI Crowd in or out Domestic Investment? New Evidence from Emerging Economies  [PDF]
Ahmed Kamaly
Modern Economy (ME) , 2014, DOI: 10.4236/me.2014.54038
Abstract: Foreign direct investment (FDI) has been for a while now an acronym associated with improvement in competitiveness and economic growth. To assess the expediency of FDI, it is imperative to answer the following question: what is the dynamic effect of FDI on total investment? In other words, what is the effect of FDI on domestic investment (DI); does it crowd in or out domestic investment? Research addressing this question is relatively recent and its empirical findings are ambiguous. This paper attempts to dodge the pitfalls in the theoretical and especially the empirical literature in assessing the link between FDI and domestic investment. The paper develops a simple theoretical model which is commonly used in the literature to come up with a reduced-form equation. Using data on 16 emerging countries over a 30-year period, the empirical model is estimated as a system of equations where each equation represents a country. Grouping all individual country regression in one system of equations aims to take into account the common contemporaneous errors associated with global shocks affecting FDI flows. This system of equations is estimated using 3SLS to account for both the existence of contemporaneous errors among individual country equations as well as the endogeneity of FDI. Results show that in general the effect of FDI on DI is country specific; however, in most countries, on impact, FDI has a positive and significant effect on DI. In subsequent periods, FDI may crowd out DI. In most countries included in the sample, FDI has a neutral long-term effect on DI. Crowding in or crowding out effect of FDI on DI is only found in few countries. This indicates that the rule is the neutrality of FDI on DI and the exception is otherwise (whether crowding in or out).
Paramagnetic Liposome Nanoparticles for Cellular and Tumour Imaging
Nazila Kamaly,Andrew D. Miller
International Journal of Molecular Sciences , 2010, DOI: 10.3390/ijms11041759
Abstract: In this review we discuss the development of paramagnetic liposomes incorporating MRI contrast agents and show how these are utilized in cellular imaging in vitro. Bi-functional, bi-modal imaging paramagnetic liposome systems are also described. Next we discuss the upgrading of paramagnetic liposomes into bi-modal imaging neutral nanoparticles for in vivo imaging applications. We discuss the development of such systems and show how paramagnetic liposomes and imaging nanoparticles could be developed as platforms for future multi-functional, multi-modal imaging theranostic nanodevices tailor-made for the combined imaging of early stage disease pathology and functional drug delivery.
Forecasting Final Schedule and Cost of Projects by Using Statistical and Mathematical Method
F. Rahnamay Roodposhti,A. Pakmaram,B. Kamaly Alamdari
International Journal of Applied Operational Research , 2011,
Abstract: Earned value management (EVM) has prepared some methods to forecast final costs of projects. These methods were not developed since the start of formation and were gradually completed, of course with one exception that is its authenticity, they are still remained unchanged. At the present time EVM guide does not apply from schedule indices to forecast schedule for completion of project and lacks such ability. The goal of the present study is to improve abilities of project managers for making logical and intelligent decisions through trustable forecasting methods and final cost of project. Regardless the type of work, time, and range, this method is recommended for project managers. This method is based on technique of EVM which is able to forecast schedule for completion of project by using statistical methods. Results of studies indicate that it is possible to provide statistical methods to forecast final costs of project. Keywords: Earned Value Management (EVM), Planned Value (PV), Earned Schedule (ES), Independent Estimate at Completion (IEAC), Actual Cost (AC), Earned Value (EV).
Treatment of Chronic Lateral Epicondylitis: Platelet Rich Plasma versus Extra-Corporeal Shock Wave Therapy  [PDF]
Ahmed Mohamed Ahmed Othman
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.43013
Abstract: Background: Several treatment options have been proposed to treat lateral epicondylitis. Both Platelet rich plasma (PRP) and Extra-corporeal Shock Wave Therapy (ESWT) are new treatment modalities for tendinopathy. Patients and Methods: Thirty seven patients suffering from chronic lateral epicondylitis (tennis elbow) for at least six months were treated in this study. The patients were divided into two treatment groups, the first group including 20 patients treated by ESWT and the second group including 17 patients treated by local injection of platelet-rich plasma. The results were evaluated using the visual analogue scale and the DASH score. Results: In the first group (treated by ESWT), the average follow-up period was 21.55 months. The average VAS improved from 8.2 to 1.95 and the average DASH score improved from 72.25 to 51.7. Moreover, 11 cases were satisfied (55%), 3 cases (15%) were satisfied with reservation and 6 cases (30%) were not satisfied. In the second group (treated by PRP), the average follow-up period was 18.47 months. The average VAS improved from 8.52 to 1.47, the DASH score improved from 72 to 48.23. Concerning patient satisfaction, 13 cases were satisfied (83.33%), 3 cases (10.52%) were satisfied with reservation and 1 case (5.55%) was not satisfied. Conclusion: Platelet rich plasma was proved to achieve superior results when compared to ESWT as regards pain relief, improvement of elbow function and patient satisfaction at follow-up.
Open versus Arthroscopic Treatment of Post-Traumatic Stiff Elbow  [PDF]
Ahmed Mohamed Ahmed Othman
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.411047
Abstract: Thirty three patients with post-traumatic stiff elbow were divided into two groups. The first group included 18 patients with an average age of 31.05 years treated by open arthrolysis. The second included 15 patients with an average age of 31.66 years treated by arthroscopic method. The results were evaluated using the Mayo clinic score and DASH score for elbow function. In the open group, after an average period of follow-up 19.33 months, the average range of flexion-extension movement improved from 51.11° to 103.94°. The average Mayo clinic score improved from 63.38 to 92.83 and the average DASH score improved from 68.1 to 40.23. There were 13 cases (72.22%) excellent, 4 cases (22.22%) good and 1 case (5.55%) with the poor result. In the arthroscopic group, after an average period of follow-up 17.73 months, the average range of flexion-extension movement improved from 59.46° to 101.53°. The average Mayo clinic score improved from 62.93 to 92.73 and the average DASH score improved from 69.25 to 46.4. There were 10 cases (66.66%) excellent, 3 cases (20%) good and 2 cases (13.33%) with the poor result. Both open and arthro-scopic treatment can be effective in treatment of post-traumatic stiff elbow. Arthroscopic treatment is associated with less post-operative pain and morbidity. However, open treatment provides better range of motion and marked improvement of elbow function.
Evaluation of the probiotic potential of lactic acid bacteria isolated from faeces of breast-fed infants in Egypt
R Khalil, K El-Halafawy, H Mahrous, K Kamaly, J Frank, M El Soda
African Journal of Biotechnology , 2007,
Abstract: The probiotic-related characteristics of 55 strains of lactic acid bacteria isolated from the faeces of 3 - 6 months old breast-fed infants were determined. The API 50 CH and SDS-PAGE techniques were employed to ascertain the identity of the isolated strains. The predominant species among the isolated strains were Lactobacillus (Lb.) acidophilus, Lb. plantarum, Enterococcus (E.) faecium, and E. faecalis. Probiotic properties such as bile resistance, acid tolerance, and adhesion to intestinal mucous were assessed. In vitro results obtained showed that five strains, Lb. plantarum (P1 and P164), Lb. pentosus (P191), and Lb. fermentum (P10, P193) were able to meet the basic requirements for probiotic functions as they demonstrated probiotic characteristics such as tolerance to pH 3, growth in 0.4% oxgall and adhesion to intestinal mucous. The results obtained in this investigation will be used to select potentially probiotic strains for in vivo study.
Energy-Efficient and Reliable Transport Protocols for Wireless Sensor Networks: State-of-Art  [PDF]
Ahmed Ayadi
Wireless Sensor Network (WSN) , 2011, DOI: 10.4236/wsn.2011.33011
Abstract: New wireless sensor network applications (e.g., military surveillance) require higher reliability than a simple best effort service could provide. Classical reliable transport protocols like Transmission Control Protocol (TCP) are not well suited for wireless sensor networks due to both the characteristics of the network nodes (low computing power, strong energy constraints) and those of the main applications running on those nodes (low data rates). Recent researches present new transport protocols for wireless sensor networks providing various type of reliability and using new mechanisms for loss detection and recovery, and congestion control. This paper presents a survey on reliable transport protocol for WSNs.
Modular Spaces Topology  [PDF]
Ahmed Hajji
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.49175

In this paper, we present and discuss the topology of modular spaces using the filter base and we then characterize closed subsets as well as its regularity.

Acquisition of the Inter-Dental Fricatives /θ/ and /ð/ in ESL/EFL and Jamaican Creole: A Comparative Study  [PDF]
Ahmed Mousa
Open Journal of Modern Linguistics (OJML) , 2014, DOI: 10.4236/ojml.2014.41004

This study aims at investigating to what extent the linguistic processes exhibited in creolization parallel those manifested by Arab learners of English in particular and those of child language and second/foreign language in general. Another aim of the study is to highlight the link between second/foreign language learning and historical change. To this end, the speech of two speakers of the Broad Jamaican Creole was compared with the performance of Saudi school and university learners of English as a foreign language and data from child language, with respect to the pronunciation of English inter-dental fricatives /θ/ and /e/. The results show that learning in the above three situations takes place according to the same principles. Furthermore, the sound substitutions made in the three situations (i.e. [t], [d] respectively) are the same as those witnessed in historical sound change.

Assessment and Evaluation of Band Ratios, Brovey and HSV Techniques for Lithologic Discrimination and Mapping Using Landsat ETM+ and SPOT-5 Data  [PDF]
Ahmed Madani
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.51002

This study aims to assess and to evaluate band ratios, brovey and HSV (Hue-Saturation-Value) techniques for discrimination and mapping the basement rock units exposed at Wadi Bulghah area, Saudi Arabia using multispectral Landsat ETM+ and SPOT-5 panchromatic data. FieldSpec instrument is utilized to collect the spectral data of diorite, marble, gossan and volcanics, the main rock units exposed at the study area. Spectral profile of diorite exhibits very distinguished absorption features around 2.20 μm and 2.35 μm wavelength regions. These absorption features lead to lowering the band ratio values within the band-7 wavelength region. Diorite intrusions appear to have grey and dark grey image signatures on 7/3 and 7/2 band ratio images respectively. On the false color composite ratio image (7/3:R; 7/2:G and 5/2:B), diorite, marble, gossan and volcanics have very dark brown, dark blue, white and yellowish brown image signatures respectively. Image fusion between previously mentioned FCC ratio image and high spatial resolution (5 meters) SPOT-5 panchromatic image is carried out by using brovey and HSV transformation

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