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Osman, Z. H., "Evaluating the Accuracy of the Digital Calculation of Fault Variables", Modeling , Simulation, and Control, vol. 25, issue 1, pp. 15-54, 1989.
Osman, A. H., and M. Atef, "Computer‐guided chin harvest: A novel approach for autogenous block harvest from the mandibular symphesis", Clinical implant dentistry and related research, vol. 20, issue 4, pp. 501-506, 2018. Abstract
Osman, A., A. El-Hadary, A. A. Korish, H. M. AlNafea, M. A. Alhakbany, A. A. Awad, and M. Abdel-Hamid, "Angiotensin-I converting enzyme inhibition and antioxidant activity of papain-hydrolyzed camel whey protein and its hepato-renal protective effects in thioacetamide-induced toxicity", Foods, vol. 10, no. 2, pp. 1-11, 2021. AbstractWebsite
Osman, A. K., and I. A. El-Garf, "Pollen morphology of the Egyptian species of the genus Limonium Mill. (Plumbaginaceae)", Feddes Repertorium, vol. 117 (7-8), pp. 476-485, 2006.
Osman, R. B., and M. V. Swain, "A Critical Review of Dental Implant Materials with an Emphasis on Titanium versus Zirconia", Materials , vol. 8, pp. 932-958, 2015.
Osman, T. A., G. S. Nada, and Z. S. Safar, Effect of Using Current-Carrying-Wire Models in the Design of Hydrodynamic Journal Bearings Lubricated with Ferrofluid, , vol. 11, issue 1, pp. 61 - 70, 2001. AbstractWebsite

Based on the momentum and continuity equations for ferrofluid under an applied magnetic field, a modified Reynolds equation has been obtained. Assuming linear behavior for the magnetic material of the ferrofluid, the magnetic force was calculated. The magnetic pressure resulting from the magnetic force was incorporated into the Reynolds equation and it was not separately treated. The derived Reynolds equation can be applied for any magnetic field distribution model. Using different magnetic field models, the equation has been solved numerically by the finite difference technique with an appropriate iterative technique and pressure distributions have been obtained. The boundary shapes of the load-carrying active regions and cavitation regions could be then determined. The solution gives the bearing performance characteristics, namely; load-carrying capacity, attitude angle of the journal center, friction coefficient and bearing side leakage. The displaced current-carrying infinitely long wire gives a field distribution with a gradient in the circumferential direction. Two novel field models are introduced. The concentric finite current-carrying-wire model gives an axially symmetric magnetic field with a gradient in the axial direction. Axial and circumferential gradients are obtained using displaced finite wire model. The effect of these magnetic models and their design parameters on the overall bearing performance characteristics has been studied. The results concluded that the magnetic lubrication provides a higher load capacity and a reduced friction coefficient, compared with a conventional lubricated bearing. The other bearing characteristics depends on the applied field model. An axially symmetric applied field, with its sealing magnetic force, leads to a decrease in the side leakage, such that the bearing may operate without side leakage by appropriate design of the field.

Osman, A. H., E. M. M. F. Hala, A. M. Zakia, A. M. Mahmoud, M. H. Mohamed, A. M. Khattab, and Z. M. A. Ewiss, "RABBIT'S HEALTH AND ENVIRONMENTAL IMPACTS OF EXPLOITATION TREATED BIODEGRADABLE POLLUTION WATER BY JOHKASOU SYSTEM", Taiwan Veterinary Journal, vol. 44, issue 1, pp. 1-8, 2018.
Osman, K. M., S. H. Marouf, and N. AlAtfeehy, "Antimicrobial resistance and virulence-associated genes of Salmonella enterica subsp. enterica serotypes Muenster, Florian, Omuna, and Noya strains isolated from clinically diarrheic humans in Egypt", Microbial Drug Resistance, vol. 19, no. 5: Mary Ann Liebert, Inc. 140 Huguenot Street, 3rd Floor New Rochelle, NY 10801 USA, pp. 370–377, 2013. Abstract
Osman, M. S., "On complex wave solutions governed by the 2D Ginzburg–Landau equation with variable coefficients", Optik - International Journal for Light and Electron Optics, vol. 156, pp. 169-174, 2018.
Osman, K. M., A. M. Hessain, U. H. Abo-Shama, Z. M. Girh, S. A. Kabli, H. A. Hemeg, and I. M. Moussa, "An alternative approach for evaluating the phenotypic virulence factors of pathogenic .", Saudi journal of biological sciences, vol. 25, issue 2, pp. 195-197, 2018 Feb. Abstract

is a recognized zoonotic food-borne pathogen; however, the use of polymerase chain reaction (PCR) in the underdeveloped countries to differentiate pathogenic from non-pathogenic is a problematic issue. Our grail was to assess the phenotypic virulence markers motility, hemolysin, congo red agar, embryo lethality assay and serum resistance for pathogenic (PEC) correlated to PCR tests which is currently used world-wide to evaluate the PEC. The 448 strains of that were isolated from different sources, were characterized for phenotypic virulence factors such as motility, hemolysin, Congo red binding, Embryo Lethality assay (ELA) and serum resistance, as well as antibiotic susceptibility using disc diffusion method to 23 antibiotics Results exhibited 100% motility and Congo red binding, 97.1% for hemolysin production and 90.2% in the ELA. As a result, we were able to hypothetically conclude that the aforementioned virulence markers are plain, straightforward, economical, rapid, more dynamic, uncomplicated methodology, duplicatable and cost next to nothing when compared to the molecular PCR. Their implementation in a diagnostic microbiology laboratory for vetting is a rewarding task in the underdeveloped countries. It augments endeavors to minimize the use of PCR in our investigations especially during epidemiological and outbreak investigations of PEC.

Osman, A., M. Y. Ismail, and M. M. Osman, "Heavy-ion reactions with nucleon transfer using Skyrme-type potential", Physical Review C, vol. 27, no. 2, pp. 650-656, 1983. AbstractWebsite

Nuclear reactions between two heavy interacting ions with nucleon transfer have been reconsidered. The direct nuclear reaction mechanism is considered. Different reaction processes are considered for single neutron or proton stripping and pickup reactions. The interacting nuclear potential of the transferred nucleon is taken to have the form of the Skyrme-type potential. With this representation for the nuclear potential of the transferred nucleon, an expression for the differential cross section is obtained by using the distorted-wave Born approximation. This expression is applied and considered for the heavy ion reactions with incident heavy ion projectiles B10, C13, O16, O18, and S32 bombarding the heavy targets Al27, Si28, Si29, Si30, and S32. The energies of the incident heavy ions have values in the range between 36.0 and 100.0 MeV. Numerical calculations of the differential cross sections are carried out. The theoretically calculated angular distributions are in good agreements with the experimental measurements. Reasonable spectroscopic factors are extracted from the present calculations. NUCLEAR REACTIONS Nucleon stripping and nucleon pickup induced by 36.0-100.0 MeV B10, C13, O16, O18, and S32 on Al27, Si28, Si29, Si30, and S32; calculated σ(θ). Finite range DWBA calculations, extracted spectroscopic factors. © 1983 The American Physical Society.

Osman, A. A., A. M. Kheir, and E. O. Abdel-ra'ouf, "Nematode Biomanagement as an Alternative Strategy to Chemical Approach", Egyptian Journal of Biological Pest Control, vol. In Press, 2016.
Osman, K. M., A. Samir, U. H. Abo-Shama, E. H. Mohamed, A. Orabi, and T. Zolnikov, "Determination of virulence and antibiotic resistance pattern of biofilm producing Listeria species isolated from retail raw milk", BMC Microbiology, vol. 16, pp. 263-276, 2016.
Osman, H., and T. Ei-Diraby, "Ontological modeling of infrastructure products and related concepts", Transportation Research Record: Journal of the Transportation Research Board, no. 1984: Transportation Research Board of the National Academies, pp. 159–167, 2006. Abstract
Osman, M. A. R., H. A. Shokeir, and M. M. Fawzy, "Fractional Erbium-Doped Yttrium Aluminum Garnet Laser Versus Microneedling in Treatment of Atrophic Acne Scars: A Randomized Split-Face Clinical Study.", Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], vol. 43 Suppl 1, pp. S47-S56, 2017 Jan. Abstract

BACKGROUND: Ablative fractional erbium-doped yttrium aluminum garnet (Er:YAG) laser and microneedling have been popularized in recent years and their effectiveness and side effects individually reported. No previous study, however, has directly compared the efficacy and safety between the 2 different treatments.

OBJECTIVE: To compare the efficacy and safety of the ablative fractional Er:YAG laser and microneedling for the treatment of atrophic acne scars.

MATERIALS AND METHODS: Thirty patients with atrophic acne scars were randomly treated in a split-face manner with a fractional Er:YAG laser on one side and microneedling on the other side. All patients received 5 treatments with a 1-month interval. Objective and subjective assessments were obtained at baseline and at 3 months after the final treatment.

RESULTS: At the 3-month follow-up, both treatment modalities induced noticeable clinical and histological improvement, with significantly better results in fractional Er:YAG laser versus microneedling (70% vs 30%), respectively (p < .001). Fractional Er:YAG laser sides had significantly lower pain scores. Total downtime was significantly shorter in microneedling sides.

CONCLUSION: Both treatment modalities are effective and safe in the treatment of atrophic acne scars, with significantly higher scar response to the fractional Er:YAG laser treatment.

Osman, K. M., I. S. A. ' da Pires, O. L. Franco, A. Orabi, M. H. Hanafy, E. Marzouk, H. Hussien, F. A. Alzaben, A. M. Almuzaini, and A. Elbehiry, "Enterotoxigenicity and Antibiotic Resistance of Coagulase-Negative Staphylococci Isolated from Raw Buffalo and Cow Milk", Microbial Drug Resistance, vol. 26, issue 5, 2020.
Osman, M., B. F. Zaitchik, and N. S. Winstead, "Cascading Drought-Heat Dynamics During the 2021 Southwest United States Heatwave", Geophysical Research Letters, vol. 49, no. 12: John Wiley & Sons, Ltd, pp. e2022GL099265, jun, 2022. AbstractWebsite

The importance of intensifying feedbacks between drought and heat, however, depends on context and can be difficult to quantify (Miralles et al., 2019). Hypothesized drought-heat interactions include (a) surface energy partitioning effects, in which drought leads to enhanced sensible heat flux relative to latent heat flux, convectively warming the planetary boundary layer, (b) surface net radiation effects, in which drought alters incoming solar radiation or surface albedo; thus, changing the amount of energy that needs to be dissipated from the surface, (c) precipitation-mediated feedbacks related to planetary boundary layer processes or convective dynamics, and (d) broader impacts on atmospheric circulations (Seneviratne et al., 2010). Determining whether any of these processes were active in the record-setting events of June 2021 has implications on how we interpret projections of future climate extremes by global climate models (GCMs) that may or may not include such cascading dynamics. Given the growing evidence for cascading dry-hot hazard dynamics in theory and global analysis, the Southwest United States drought and heat extreme of 2021 offers an important opportunity to probe for the presence of hypothesized feedbacks. We do this through controlled numerical experiments with the Weather Research and Forecasting (WRF) model (Skamarock et al., 2021) applied at convection resolving scales, allowing us to consider how dynamics often described in GCMs and global scale analysis played out at local to regional scale during a sentinel event.

Osman, K. M., H. A. Ali, J. A. ElJakee, and H. M. Galal, "Chlamydophila psittaci and Chlamydophila Pecorum Infections in Goats and Sheep", Scientific and Technical Review, vol. 30, issue 3, pp. 393-348, 2011. AbstractCU-PDF.pdf

The aim of this study was to determine the epidemiology of chlamydiosis in free ranging asymptomatic and diarrhoeic sheep and goats. Fecal swabs were examined for the presence of chlamydiae by culture in Vero cells, chick embryo, Gimenez staining, direct fluorescein-conjugated monoclonal antibody staining and immunoperoxidase. Chlamydial DNA was then used to identify specific DNA by omp2 gene using the PCR-RFLP. The asymptomatic goats were 50% positive for the presence of the omp2 gene of the family Chlamydiaceae which were totally Cp. psittaci (100%). The percentage of the family Chlamydiaceae in diseased goats was 16.2% which were also identified to be positive for Cp. psittaci (100%). The asymptomatic sheep revealed that 6.7% were positive for the presence of the omp2 gene of the family Chlamydiaceae and to be 100% positive for Cp. psittaci. On the other hand, 42.9% of the samples that were collected from the diseased sheep were positive for the family Chlamydiaceae of which 25.7% were Cp. psittaci and 4.8% Cp. pecorum.

Osman, A. A. E., R. A. El-Khoribi, M. E. Shoman, and M. W. A. Shalaby, "Preprocessing Trajectory Learning Techniques For Robots: A comparative study", 2022 International Conference on Decision Aid Sciences and Applications (DASA), 2022.
Osman, K. M.,, Jouini R, Z. M. S. Amin, and B. S. Hasan, "Mycoplasma gallisepticum: an emerging challenge to the poultry industry in Egypt.2009.", . OIE - World Organisation for Animal Health Scientific and Technical Review, vol. 28, pp. 1015-1023, 2009.
Osman, T. A., A. M. Youssef, M. KHATTAB, A. A. Bahr, and S. Yousef, "A new design of the universal test rig to measure the wear characterizations of polymer acetal gears (Spur, Helical, Bevel, and Worm)", Advances in Tribology, vol. 2015, 2015.
Osman, H., "Coordination of urban infrastructure reconstruction projects", Structure and Infrastructure Engineering, vol. 12, no. 1: Taylor & Francis, pp. 108–121, 2016. Abstract
Osman, S. A., and H. M. Omar, "Clinical and epidemiological studies on screwworm infestation in Qassim region, Saudi Arabia", Tropical Biomedicine, vol. 34, issue 4, pp. 936–943, 2017. Abstract936-943-salama-a-osman.pdfWebsite

A prevalence study of skin myiasis in small ruminants was carried over a one year
period. Animals, which were admitted to the Veterinary Teaching Hospital of Qassim region,
Saudi Arabia, were examined for wound myiasis and the larvae collected were identified as
Chrysomyia bezziana. Prevalence of 13.0% and 10.0% were recorded in sheep and goats
respectively. Sites of infestation, gender and age were concerned during the investigation.
Fixed flocks (animals reared completely indoors) showed higher prevalence than semi-fixed
ones particularly in winter. No cases of myiasis was observed during summer. Female animals
were more significantly infested (p = 0.0001) than males, age seems to have no role with
infestation rates. Surgical and medicinal intervention were successfully carried out and
recommendations were given to avoid repeated infestation.

Osman, E. E. A., N. S. Hanafy, R. F. George, and S. M. El-Moghazy, "Design and synthesis of some barbituric and 1,3-dimethylbarbituric acid derivatives: A non-classical scaffold for potential PARP1 inhibitors.", Bioorganic chemistry, vol. 104, pp. 104198, 2020. Abstract

Six series based on barbituric acid 5a-e, 10a-d; thiobarbituric acid 6a-e, 11a-d and 1,3-dimethylbarbituric acid 7a-e, 12a-d were prepared and screened for their in vitro PARP1 inhibition. They revealed promising inhibition at nanomolar level especially compounds 5c, 7b, 7d and 7e (IC = 30.51, 41.60, 41.53 and 36.33 nM) with higher potency than olaparib (IC = 43.59 nM). Moreover, compounds 5b, 5d, 7a, 12a and 12c exhibited good comparable activity (IC = 65.93, 58.90, 66.57, 45.40 and 50.62 nM, respectively). Furthermore, the most active compounds 5c, 7b, 7d, 7e, 12a and 12c against PARP1 in vitro were evaluated in the BRCA1 mutated triple negative breast cancer cell line MDA-MB-436 where 5c and 12c showed higher potency compared to olaparib and result in cell cycle arrest at G2/M phase. 5c and 12c showed apoptotic effects in MDA-MB-436 and potentiated the cytotoxicity of temozolomide in A549 human lung epithelial cancer cell line. Compounds 5c and 12c represent interesting starting points towards PARP1 inhibitors.