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R., S. B., R. R.E., A. A. M., and K. N. A., "Neurosonological and cognitive screening for evaluation of systemic sclerosis patients", Clinical Rheumatology, vol. 38, issue 4, pp. 1-12, 2019.
R., Z., ISCM in a case of breast cancer, , Cairo, EURORAD Radiological Case Database, 21/8, 2015. case_12973_en.pdf
R., S., L. W., and A. A. O., "Endocardial VVIR Pacing in Infants and Small Children Weighing 8 ≤Kg: A Single Center Experience. ", Association for European Paediatric and Congenital Cardiology (AEPC) conference, Rome . Italy, may 2016. p1_7fin.pdf
R., L., A. H. S.A, and A. K. O.M, "FUROSEMIDE LOADED SUPERPOROUS HYDROGEL COMPOSITE AS A CONTROLLED RELEASE DEVICE: DIFFERENT STRATEGIES FOR DRUG LOADING", Journal of Pharmaceutical Research and Opinion, vol. 3, issue 6, pp. 28 - 35., 2013. AbstractGastroretentive.pdf

The aim of the present work was to develop controlled release, gastroretentive device
using superporous hydrogel composite (SPHC). Furosemide was chosen as good
candidate for such system due to its narrow absorption window, low bioavailability
and short half-life. Plain hydrogel was evaluated with respect to swelling ratio,
apparent density and floating time. Scanning electron micrographs of SPHC showed
large interconnected pores and extensive capillary insertion. Prepared Microspheres
were tested for drug content, and tablets evaluated with respect to quality control
tests. All loaded formulae inside SPHC were tested for drug release profile.
Microspheres, tablets and drug solutions were tested for loading inside SPHC. Kinetic
treatment of release data revealed that soaked drug solution was unable to control
drug release, where it gave a t1/2(0.5hrs) very similar to that of the free drug (0.6hrs).
Loaded microspheres showed only a slight retardation in release t1/2 to 1.06 hrs along
with a high percent of flush (~30mg %). However, loaded tablet demonstrated a
promising sustained effect corresponding to a release t1/2= 6hrs and a low percent of
initial flush (~1.2mg %). Therefore, the applicability of SPHC as a controlled release
device proved to be largely dependent on the type of dosage form included.

R. Agamy, A.Y. Abdel-Moneim, M. S. Abd-Alla, I. I. Abdel-Mageed, and G. M. Ashmawi, "Using Linear Body Measurements to Predict Body Weight and Carcass Characteristics of Three Egyptian Fat-Tailed Sheep Breeds", Asian Journal of Animal and Veterinary Advances, vol. 10, issue 7, pp. 335-344, 2015. using_linear_body_measurements_to_predict_body_weight_and.pdf
R. Andrawais, M. Swillam, M. A. El-Gamal, and E. Soliman, "Artificial neural network modeling of plasmonic transmission lines", Applied Optics, vol. 55, issue 10, pp. 2780-2790, 2016.
R. E., A., A. M. R. A. Abdelaziz, E. F. Essa, and L. M. M. HAMED., "Impact of Irrigation Scheduling and Application Rate of Organic Fertilizers under Rotational Distribution System in Sandy Soils to Mitigate Water Stress on Apple Trees", Bioscience Research, vol. 16, no. 2:, pp. 1626–1637, 2019. Abstract
R. E., A., A. S.M.M., M. A. M.M., M. Hafez, A. I. Popov, and L. M. M. HAMED, "INFLUENCE OF N-FERTIGATION STRESS AND AGRO- ORGANIC WASTES (BIOCHAR) TO IMPROVE YIELD AND WATER PRODUCTIVITY OF SWEET PEPPER UNDER SANDY SOILS CONDITIONS", Plant Archives , vol. 20, issue Supplement 1, pp. 3208-3217 , 2020. 214__3208-3217_.pdf
R. EA Moghaieb, Hussein M. H., Ibrahim E.G., and H. A. H.M., "Genetic diversity among banana mutants as revealed by SDS-PAGE and RAPD analyses", Arab J Biotech, vol. 16, issue 1, pp. 79-90, 2013.
R. F. Ahmed, A. G. Radwan, A. H. Madian, and A. M. Soliman, "Built-In Current Sensor for Testing Analog Blocks", Canadian Journal on Electrical and Electronics Engineering, vol. 2, issue 6, pp. 216-228, 2011. eee-1106-025-built-in-current-sensor-for-testing-analog-blocks.pdf
R. M. Mohareb, S. M. Sherif, H. M. Gaber, S. S. Ghabrial, and S. I. Aziz, "Thiophenylhydrazonoacetates in Heterocyclic Synthesis", Heteroatom Chem. , vol. 15, pp. 15, 2004.
R. M. Mohareb, S. M. Sherif, H. M. Gaber, S. S. Ghabrial, and S. I. Aziz, "Thiophenylhydrazonoacetates in Heterocyclic Synthesis", Heteroatom Chem. , vol. 15, pp. 15, 2004.
R. M. Mohareb, and A. A. El-Khair, "Novel Synthesis of Hydrazide-Hydrazone and their uses for the synthesis of 1,3,4-oxadiazine, 1,2,4-triazine , pyrazole and pyridazine derivatives with antimicrobial and antifungal activities", International Journal of Applied and Pharmaceutical Technology, vol. 2, pp. 435-446, 2011.
badry R. Mourad, M. E. M. [a], E. Y. Z. Frag, H. A. El-Boraey, and S. S. El-Sanafery, "A Novel Molecularly Imprinted Potentiometric Sensor for the Fast Determination of Bisoprolol Fumarate in Biological Samples", Electroanalysis, vol. 33, 2021.
R. Rabee, M.F. Ali, and F. A. G. A. S. F. and Halim, "Preservation of Archaeological Leather by Reinforcement with Styrene", Materials Scienceand Technology, Switzerland, Ping He Jongee Park, 2015.
R.A.Afifi, D.Kamal, R.El.sayed, S.M.M.Ekaldious, G.H.Shaheen, S.M.Yousry, and R.E.Hussein, "CD209-336A/G promotor polymorphism and its clinical associations in sickle cell disease Egyptian Pediatric patients", Hematol Oncol Stem Cell Ther, vol. 17, 2017.
R.A.K, M., E. - G. H. L, and A. H.H, "Serum Neopterin. tumor necrosis factor alpha (TNF-a) and soluble Tumour Necrosis Factor Receptor II (p75) levels and disease activity in patients with SLE", The Arab Journal of Laboratory Medicine , vol. 31, issue 2, 2005.
R.A.K.Salama, N. A. Elneary, and F. F. Mostafa, "Influence of olive fly, Bactrocera (Dacus) oleae (Gmel.) infestation on some physical and chemical characteristics of olive fruits and their virgin oil", Journal of Food Sci., vol. 25, issue 1: Journal of Food Sci., pp. 99-106, 1997. Abstract
R.A.Rezk, A.H.Galmed, M.Abdelkreem, N. A. Abdel Ghany, and M.A.Harith, "QuantitativeanalysisofCuandCoadsorbedon fish bonesvia laser-inducedbreakdownspectroscopy", Optics&LaserTechnology, vol. 83, pp. 131, 2016. optics_laser_technolgy.pdf
R.Abu-Eittah, M., Fractional Radio Frequency for Acne Scar Treatment, , 2014. Abstract

Acne is a common skin condition specially in adult age group. Its course varies according to its severity, mishandling and management. Acne scars are quite common and lead to disfigurement and psychosocial problems. Acne scars are dermal deprasion commonly caused by the destruction of collagen. Various procedures like chemical peeling, dermabrasion, punch excision, fillers and laser resurfacing have been used with varying degrees of succees.
Acne scars are classified as rolling, ice-pick, shallow boxcar and deep boxcar. Rolling scars appear like hills and valleys without sharp borders. Ice-pick scars also known as pitted scars appear as round deep depreasions. Boxcar scars have flat-u-shaped base, broader than ice-pick scars they are round or linear at the skin surface. Shallow boxcar scars terminat in the mid-dermis, and deep boxcar scars penetrate to the reticular dermis.
Ablative laser therapies with CO2 fractional laser and Er:YAG lasers are well accepted treatment for post acne scars for creation of a controlled thermal injury to the dermis with subsequent neocollagenesis and remodeling of scarred skin.
In this study we examined the efficacy and safety of ablative CO2 fractional laser(10,600nm) in twenty patients with mild and moderate acne scars.
Patients and methods
Twenty patients(14females and 6males) with age ranging from18 years to30 years, skin type III and IV with mild to moderate acne scars ,they were treated at skin clinic in laser institute of cairo university.
Treatment with ablative CO2 fractional laser of 10,600nm wavelength. The laser fluence was delivered with settings of 20 to 40 mJ /cm2 , density level 3 using the deep resurfacing mode. Those who have any procedures such as chemical peeling , dermabrasion or retinoids treatment before they were excluded.
Patients were informed about the procedure as complications and outcomes.A written consent was taken and photographs before and after each laser sitting. Topical anesthetics were used , superficial cooling after laser sitting by chilled air. Every patient was treated for six sittings each every month apart.