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Search Results: 1 - 10 of 155 matches for " Samah Joobeur "
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Predictive Factors of Multiple Hospitalizations for Acute Exacerbations of COPD  [PDF]
Ahmed Ben Saad, Nesrine Fahem, Asma Migaou, Saousen Cheikh Mhamed, Samah Joobeur, Naceur Rouatbi
Open Journal of Respiratory Diseases (OJRD) , 2019, DOI: 10.4236/ojrd.2019.93006
Abstract: Background: Multiple hospitalizations for acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are associated with considerable morbidity and mortality. Objectives: To identify predictive factors of multiples hospitalizations for AECOPD. Methods: This is a retrospective single center study of consecutive patients with COPD hospitalized at the Department of Respiratory Medicine between January 1990 and December 2015. We calculated for each patient the mean number of hospitalizations for AECOPD/year (H/y). We distinguished 2 groups (G) of patients. G1: <2 H/y and G2: ≥2 H/y. Predictors of multiple admissions identified by univariate analysis were included in the multivariate analysis. Results: The study included 1167 COPD patients (mean age 67 ± 10 years, 97% males). Three hundred six (26%) COPD patients had a mean number of hospitalizations per year ≥ 2. Multivariate logistic regression analysis demonstrated that an mMRC ≥ 2 (Odd ratio [OR] 1.8, 95% confidence interval [CI] 1.08 - 2.99, p = 0.022), a low PaO2 (PaO2 OR 0.97, 95% CI 0.95 - 0.99, p = 0.007) and frequent exacerbations (OR 2.95, 95% CI 2.56 - 3.39, p < 0.001) are independent factors associated with multiple admissions for AECOPD. Conclusions: An mMRC ≥ 2, a low PaO2 and frequent exacerbations are independently associated with multiple hospitalizations for AECOPD. The identification of these high risk COPD patients will be helpful in the decision of intervention strategies.
Synergistic Effect of the Methanolic Extract of Lemongrass and Some Antibiotics to Treat Urinary Tract Bacteria  [PDF]
Samah Noor
Journal of Biosciences and Medicines (JBM) , 2016, DOI: 10.4236/jbm.2016.411006
Abstract: Some medicinal plants are used traditionally in Saudi Arabia to treat many bacterial infections. Three plants, lemongrass (Oymbopogon citrates), lantana (Lantana cama-ra), and wild olive leaves (Olea europaea) were collected, identified, extracted with either hot water or organic solvents (methanol, diethyl ether, ethyl acetate and n-butanol) to investigate their antibacterial activities against E. coli. The methanol ex-tracts of lemongrass, lantana and olive showed the highest activities against Esherichia coil while aqueous extract exhibited the lowest activities. Thus, the antibacterial activities of the methanolic extract of the three tested plants were determined using agar well diffusion method against some bacterial pathogens, isolated from urine samples. The highest antibacterial activity was recorded for themethanolic extract of lemongrass against all tested bacteria, E. coli, K. pneumoniae, P. aeuroginosa, P. mirabilis, E. faecalis and S. aureus. The tested bacteria differed with regard to their susceptibility to plant extracts. Lemongrass was the most active extract followed by lantana and wild olive extracts. Minimal inhibitory concentrations (MICs) of the methanolic extract of Lemongrass and some used antibiotics, Erythromycin, Tetracycline, Amoxicillin, Ciprofloxacin and Chloramphenicol were determined usingfluorescein diacetate method. Synergistic effect of the methanolic extract of lemongrass with the previous antibiotics against the tested clinical bacterial isolates was determined and the Fractional inhibitory concentrations (FIC) of different combination of the extract and the antibiotics were determined. FIC index (FICI) was calculated and it was ranged from 0.08 - 0.98. The interaction between the tested plant extract and the tested antibiotics was either synergistic or additive effects and no antagonistic effect was recorded. In conclusion, methanolic extract of lemongrass singly or in combination with some antibiotics can be used to treat pathogenic bacteria that cause urinary tract infections.
STUDY ON BARRINGTONIA ASIATICA KURZ
Asmaedy Samah
Bulletin of Health Research , 2012,
Abstract: Telah dilakukan suatu penelitian tentang Barringtonia asiatica Kurz. Dua senyawa sapogenin telah dapat dipisahkan dari benih Barringtonia asiatica Kurz. Titik lebur mereka adalah 243-245°C untuk senyawa R1 dan 266-268°C untuk senyawa R2 . Spektrum IR menunjukkan bahwa senyawa R2 memiliki functional groups yang terdiri atas OH, CH, C = C, C -O -C dan CH3 sedangkan senyawa R1 me-miliki functional groups OH, C-H, C = C dan C-O-C dalam strukturnya.
Some Personal and Social Variables That Affect Extra Sensory Perception (Sixth Sense)  [PDF]
Samah Khaled Abd El Kawy Zahran
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.24061
Abstract: If we accept the importance of the 6th sense in developing human community, we have to study the variables that may affect it, that may develop or control this frontier human ability. The current study tries to survey some personal and social variables that may affect this sense. These variables are: gender, age, country, educational level, monthly income, marital status, one hygiene, hobbies, personality type, one heredity of the sixth sense, one superior sense (the best sense) of the 5 ordinary senses, one case during 6th sense experience and day time during 6th sense experience. The author uses descriptive method on an intended sample, which experience 6th sense. By applying a criterion measure consists of these previous variables. Results showed that there are significant effects among the study variables, with empathies on early childhood importance in discovering and educating this frontier ability.
Type of Parental Socialization across Cultures A Psychoanalysis Review  [PDF]
Samah Khaled Abd El Kawy Zahran
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.25082
Abstract: In order to study parental socialization (Styles) cross-culturally, it is necessary to understand the different styles of parenting in culture throughout the world, also the effects of culture’s variables on parenting styles. The research discusses this notion through: definitions, specific theories and psychoanalysis for the theoretical framework. Then the study suggests a new type of socialization (parenting styles) as a result of the new global culture.
Chebyshev Polynomials for Solving a Class of Singular Integral Equations  [PDF]
Samah M. Dardery, Mohamed M. Allan
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.54072
Abstract:


This paper is devoted to studying the approximate solution of singular integral equations by means of Chebyshev polynomials. Some examples are presented to illustrate the method.


Effects of Oral Administration of Camel Milk and Urine on Gut Microbiota: Biochemical and Microbiological Profiling in Rats  [PDF]
Samah O. Noor, Manal S. Alenini
American Journal of Molecular Biology (AJMB) , 2018, DOI: 10.4236/ajmb.2018.81001
Abstract: Human intestinal tract contained a diverse number of microbial communities which performed a significant role in human health. The presence of gut microbiota was affected mainly by diet. Camel milk is the source of nutrition and provides all the essential nutrients for growth. It has great significance in the treatment of liver, spleen, and anemic infections. Camel urine has also many medical advantages. In this study we examined the effect of camel milk and urine and a mixture of both (milk + urine) on the growth of Gut microbiota using an in vivo animal model. Fresh fecal samples were collected before and after administration of the tested materials. After that, the microbial analysis was conducted via culturing, denaturing gradient gel electrophoresis and metabolic analysis via high-performance liquid chromatography (HPLC). The result indicated that the numbers of bacterial groups were increased after the first dose. Coliform group have significant increase when given a mix of milk and urine compared to control group with P < 0.05. Bifidobacterium group have significant increase in their number in the Milk and Mix groups compared to control group with P < 0.05. The concentration of Short-chain fatty acids in fecal samples was increased in Milk and Mix groups compared to control group. In conclusion, drinking camal milk, urine or a mix of both increased the growth of Gut microbiota.
Ab initio study of structural, electronic and magnetic properties of iron clusters Fe n (n=2-13)
Samah, M.;Moula, B.;
Revista mexicana de física , 2011,
Abstract: structures, binding energies, and magnetic moments of fen (n = 2-13) clusters have been obtained by pseudopotential density functional theory. a troullier-martin scheme was used to generate the iron's pseudopotential and we have successfully reproduced results (lattice constant and magnetic moment) for the bulk bcc iron. the results indicate that the magnetic moment per atom varies slowly around a mean value 3.0μb /atom. with increasing atom number the mean binding energy monotonically decreases.
2-Amino-3-nitropyridinium hydrogen selenate
Samah Akriche,Mohamed Rzaigui
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809022879
Abstract: The asymmetric unit of the title compound, C5H6N3O2+·HSeO4 , contains two monoprotonated 2-amino-3-nitropyridinium cations and two hydrogen selenate anions which are connected through N—H...O and O—H...O hydrogen bonds, building chains parallel to the a direction. These chains are further connected to each other by weaker C—H...O hydrogen-bonding interactions, leading to the formation of a three-dimensional network.
2-Amino-3-nitropyridinium hydrogen oxalate
Samah Akriche,Mohamed Rzaigui
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809008666
Abstract: In the non-centrosymetric title compound, C5H6N3O2+·C2HO4 , the hydrogen oxalate anions form corrugated chains parallel to the c axis, linked by O—H...O hydrogen bonds. The 2-amino-3-nitropyridinium cations are anchored between theses chains by N—H...O and C—H...O hydrogen bonds and van der Waals and electrostatic interactions, creating a three-dimensional network.
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