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Search Results: 1 - 10 of 298381 matches for " Farah J Nassar "
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Genotypes and serotype distribution of macrolide resistant invasive and non- invasive Streptococcus pneumoniae isolates from Lebanon
Nedal Taha, George F Araj, Rima H Wakim, Souha S Kanj, Zeina A Kanafani, Ahmad Sabra, Marie-Therese Khairallah, Farah J Nassar, Marwa Shehab, Maysa Baroud, Ghassan Dbaibo, Ghassan M Matar
Annals of Clinical Microbiology and Antimicrobials , 2012, DOI: 10.1186/1476-0711-11-2
Abstract: Forty four macrolide resistant and 21 macrolide susceptible S. pneumoniae clinical isolates were tested for antimicrobial susceptibility according to CLSI guidelines (2008) and underwent molecular characterization. Serotyping of these isolates was performed by Multiplex PCR-based serotype deduction using CDC protocols. PCR amplification of macrolide resistant erm (encoding methylase) and mef (encoding macrolide efflux pump protein) genes was carried out.Among 44 isolates resistant to erythromycin, 35 were resistant to penicillin and 18 to ceftriaxone. Examination of 44 macrolide resistant isolates by PCR showed that 16 isolates harbored the erm(B) gene, 8 isolates harbored the mef gene, and 14 isolates harbored both the erm(B) and mef genes. There was no amplification by PCR of the erm(B) or mef genes in 6 isolates. Seven different capsular serotypes 2, 9V/9A,12F, 14,19A, 19F, and 23, were detected by multiplex PCR serotype deduction in 35 of 44 macrolide resistant isolates, with 19F being the most prevalent serotype. With the exception of serotype 2, all serotypes were invasive. Isolates belonging to the invasive serotypes 14 and 19F harbored both erm(B) and mef genes. Nine of the 44 macrolide resistant isolates were non-serotypable by our protocols.Macrolide resistance in S. pneumoniae in Lebanon is mainly through target site modification but is also mediated through efflux pumps, with serotype 19F having dual resistance and being the most prevalent and invasive.Streptococcus pneumoniae continues to be a major cause of morbidity and mortality in humans. It is one of the most significant bacterial pathogens causing community acquired infections, most notably pneumonia, otitis media, bacteremia, and meningitis [1,2]. Treatment of pneumococcal infections is becoming difficult due to the high prevalence of penicillin-resistant strains and to the rapid development of resistance to other antimicrobials including macrolides. These drugs are extensively used for the treat
Bronchography with a New Water - Soluble Medium ( Dionosil ) and the Use of a Simple Technic
J. Farah,I. Niknejad
Acta Medica Iranica , 1957,
Abstract: A simple technic of bronchography which can be carried out by the radiologist is described. Our experience with dionosil has been discussed. We believe the dionosil to be a satisfactory medium for bronchography.
Chronic Pain Review Following Lichtenstein Hernia Repair: A Personal Series  [PDF]
Maurice Brygel, Luke J. Bonato, Sam S. Farah
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.39086
Abstract: Introduction: Chronic groin pain is both a topical subject and important outcome measurement following inguinal hernia repair. It has been suggested its incidence is related to the management of the nerves of the inguinal canal as well as the type of mesh used and methods of fixation for both open and laparoscopic surgery. The level of pre-operative and post operative pain, its duration as well as complications may all be factors in predicting whether chronic pain could develop. The method of measurement of chronic pain is itself a contentious issue. It is now apparent that the qualitative measurement of activity and functional status as well as quantitative is important. As a result several uniform methods of assessing chronic post-operative pain have been designed, validated and implemented. One of these is used here. Methods: A study reviewing a consecutive series of Lichtenstein repairs performed by a single experienced hernia surgeon was carried out. 248 inguinal hernia patients operated on in 2005 were reviewed. Patients were contacted via telephone at a median of 50 months. Franneby’s recently validated inguinal pain questionnaire was used to assess the incidence of chronic pain. Results: 185 (75%) patients were able to be contacted for follow-up, making a total of 213 inguinal hernia repairs (including bilateral and recurrent hernias). At the time of review 3% of patients reported having pain. No patients reported that pain or discomfort was limiting their work, exercise or activities of daily living. No patients had disabling pain. Conclusion: Chronic pain did not appear to be a major problem within this cohort of patients. The Lichtenstein technique can produce favourable results in terms of chronic pain for unilateral, bilateral and recurrent inguinal hernias in an unselected group of patients with the usual mix of risk factors and complications.
Empirical Studies for the Assessment of the Effectiveness of Design Patterns in Migration between Software Architectures of Embedded Applications
Farah Lakhani,Michael J. Pont
ISRN Software Engineering , 2012, DOI: 10.5402/2012/259064
Abstract:
Silica matrix doped with calcium and phosphate by sol-gel  [PDF]
Lucimara C. Bandeira, Katia J. Ciuffi, Paulo S. Calefi, Eduardo J. Nassar
Advances in Bioscience and Biotechnology (ABB) , 2010, DOI: 10.4236/abb.2010.13028
Abstract: Silica matrices doped with calcium and phosphate at various Ca/P molar ratios were prepared by the hydrolytic sol-gel methodology. Tetraethylorthosilicate (TEOS) was reacted with calcium ethoxide, in the presence of phosphoric acid as catalyst. Eu III ions were added to the resulting silica, in order to obtain structural information. The samples were dried at 50ºC and characterized before and after contact with Simulated Body Fluid (SBF). The xerogels were analyzed by thermal analysis (TA), X-ray diffraction (XRD), photoluminescence (PL), and scanning electron microscopy (SEM). The PL spectra revealed Eu III lines characteristic of the 5D0 ? 7FJ (J = 0, 1, 2, 3, 4) transition of this ion, and they indicated a nonhomogenous distribution of Eu III in the Ca-P-Si matrix. XRD and SEM confirmed the presence of an amorphous and crystalline system before and after contact of the samples with the SBF solution, and the crystalline phases were ascribed to hydroxyapatite and? ?-calcium triphosphate. The goal of the work is the preparation of a material can be used as biomaterias at low temperature.
A Study of Phytoplankton Communities and Related Environmental Factors in Euphrates River (between Two Cities: Al-Musayyab and Hindiya), Iraq  [PDF]
Jasim M. Salman, Hassan J. Jawad, Ahmmed J. Nassar, Fikrat M. Hassan
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.410123
Abstract:

The phytoplankton communities and related physical-chemical features of the Euphrates River at its middle region inside Iraqi territory were studied during the study period from October 2011 to September 2012. Samples were taken from Al-Musayab district extending to Al-Hindia district. The phytoplankton community (quantitative, qualitative and Chlorophyll-a) have been studied, in addition to many environmental parameters such as temperature, pH, electric conductivity (EC), Salinity (‰), TDS, TSS, dissolved oxygen, BOD5. A total of 105 phytoplankton taxa belonging to Bacillariophyta (69), Chlorophyta (19), Cynophyta (12), Euglenophyta (3), and Dinophyta (2) were recorded within the present study period. Some algal genera dominated mostly in the study period and sites such as Scendesmus, Melosira, Cymbella, Diatoma, Navicula, Nitiazschia and Syndera. A statistical analysis was done using the canonical correspondence analysis (CCA).

Modeling Breast Cancer Incidence Rates: A Comparison between the Components of Functional Time Series (FTS) Model Applied on Karachi (Pakistan) and US Data  [PDF]
Farah Yasmeen
Open Journal of Applied Sciences (OJAppS) , 2016, DOI: 10.4236/ojapps.2016.68052
Abstract: Several studies showed that the breast cancer incidence rates are higher in high-income (developed) countries, due to the link of breast cancer with several risk factors and the presence of systematic screening policies. Some of the authors suggest that lower breast cancer incidence rates in low-income (developing) countries probably reflect international variation in hormonal factors and accessibility to early detection facilities. Recent studies showed that the breast cancer increased rapidly among women in Pakistan (a developing country) and it became the first malignancy among females of Pakistan. Although, the incidence rates may contain important evidence for understanding and control of the disease; however in Pakistan, the breast cancer incidence data have never been available in the last five decades since independence; rather, only hospital-based data are available. In this study, we intend to apply Functional Time Series (FTS) models to the breast cancer incidence rates of United State (developed country), and to see the difference between various components (age and time) of Functional Time Series (FTS) models applied independently on the breast cancer incidence rates of Karachi (Pakistan) and US. Past studies have already suggested that the incidence of US breast cancer cases was expected to increase in the coming decades. A progressive increase in the number of new cases is already predetermined by the high birth rate that occurred during the middle part of the century, and it will lead to nearly a doubling in the number of cases in about 4 decades. We also obtain 15 years predictions of breast cancer incidence rates in United States and compare them with the forecasts of incidence curves for Karachi. Development of methods for cancer incidence trend forecasting can provide a sound and accurate foundation for planning a comprehensive national strategy for optimal partitioning of research resources between the need for development of new treatments and the need for new research directed toward primary preventive measures.
Measuring Global Warming: Global and Hemisphere Mean Temperature Anomalies Predictions Using Sliced Functional Time Series (SFTS) Model  [PDF]
Farah Yasmeen
Open Journal of Applied Sciences (OJAppS) , 2019, DOI: 10.4236/ojapps.2019.95026
Abstract: In this study, the sliced functional time series (SFTS) model is applied to the Global, Northern and Southern temperature anomalies. We obtained the combined land-surface air and sea-surface water temperature from Goddard Institute for Space Studies (GISS), NASA. The data are available for Global mean, Northern Hemisphere mean and Southern Hemisphere means (monthly, quarterly and annual) since 1880 to present (updated through March 2019). We analyze the global surface temperature change, compare alternative analyses, and address the questions about the reality of global warming. We detected the outliers during the last century not only in global temperature series but also in northern and southern hemisphere series. The forecasts for the next twenty years are obtained using SFTS models. These forecasts are compared with ARIMA, Random Walk with drift and Exponential Smoothing State Space (ETS) models. The comparison is made on the basis of root mean square error (RMSE), mean absolute percentage error (MAPE) and the length of prediction intervals.
Early pregnancy maternal cardiovascular profiling in the prediction of hypertensive disease in pregnancy  [PDF]
Jennifer Hogan, Vicky O’Dwyer, Nadine Farah, Mairead M. Kennelly, Michael J. Turner, Bernard Stuart
Open Journal of Obstetrics and Gynecology (OJOG) , 2014, DOI: 10.4236/ojog.2014.42011
Abstract:

Prediction of hypertensive disease in pregnancy remains challenging. Risk factor based screening utilizing history, physical characteristics, uterine artery Doppler and serum markers have been used with varying success. As hypertension in pregnancy appears to be associated with changes in the maternal vasculature, we have investigated the utility of maternal arterial elasticity measurement, prior to 20 weeks gestation, in the prediction of hypertensive disease in pregnancy. A HDI/Pulsewave CR2000 Research Cardiovascular Profiling System was used to obtain radial artery pulse pressure waveforms from 623 Caucasian women at the time of their first antenatal visit. Outcome data were available in 610 cases and these comprised the study group. The results showed that women who subsequently developed gestational hypertension (n = 20) had higher baseline systolic, diastolic and pulse pressure values (though within the normal range) but similar arterial elasticity to those patients who did not develop hypertension. Women who later developed pre-eclampsia (n = 23) had, in addition, reduced large artery elasticity and increased systemic vascular resistance compared with women who did not develop hypertension. The measurement of maternal radial artery elasticity in early pregnancy may provide an additional refinement in screening for hypertensive disease, particularly pre-eclampsia, in pregnancy.

Enhancement stimulants: perceived motivational and cognitive advantages
Irena P. Ilieva,Martha J. Farah
Frontiers in Neuroscience , 2013, DOI: 10.3389/fnins.2013.00198
Abstract: Psychostimulants like Adderall and Ritalin are widely used for cognitive enhancement by people without ADHD, although the empirical literature has shown little conclusive evidence for effectiveness in this population. This paper explores one potential explanation of this discrepancy: the possibility that the benefit from enhancement stimulants is at least in part motivational, rather than purely cognitive. We review relevant laboratory, survey, and interview research and present the results of a new survey of enhancement users with the goal of comparing perceived cognitive and motivational effects. These users perceived stimulant effects on motivationally-related factors, especially “energy” and “motivation,” and reported motivational effects to be at least as pronounced as cognitive effects, including the effects on “attention.”
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