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The Association between Preoperative Plasma C-Reactive Protein (CRP) Level and Postoperative Adult Heart Surgery Outcome  [PDF]
Bilehjani Eissa, Fakhari Solmaz, Farzin Haleh, Mirinezhad Mousa, Shadvar Kamran, Yaghoubi Alireza, Ranjbar Shirin
Open Journal of Internal Medicine (OJIM) , 2016, DOI: 10.4236/ojim.2016.63015
Abstract: Introduction: Careful history and physical examinations are the best ways for preoperative evaluation. Currently, we are recommended to rely on doing them rather than unnecessary and costly laboratory tests for confirmation or diagnosis of disease. The aim of study is the survey of CRP level association to decide further evaluation and expert consultation, newly diagnosed problems and possible effect on postoperative mortality and morbidity. Methods and Materials: In a descriptive retrospective study, hospital documentation of 620 patients older than 18 years undergone heart surgery in Tabriz Shahid Madani hospital was evaluated. Addition to plasma CRP level, patient’s demographic information, type of surgery, preoperative significant tests, delay time in surgery start time after anesthesiology visit, cause of requested specialty consultation and treatment recommendation, postoperative complications and mortality rate were recorded and analyzed. Patients were classified according to preoperative plasma CRP level to five groups as negative, +1, +2, +3 and not measured (i.e. they considered as normal (0 - 5 mg/l), mildly (5 - 40 mg/l), moderately (40 - 200 mg/L) or severely increased (>200 mg/l) groups). Results: Of 620 patients, 402 were male and 218 were female. There was not statistically significant correlation among demographic variables (gender, age, weight, and height), heart disease diagnosis and the type of surgery in five groups. In 79 individuals, they were done specialty consultations that most common of them were neurology consultation because of impaired renal laboratory tests. Only 2 cases were due to high CRP level. In any of cases, this preoperative consultation didn’t result from new disease cases. CRP plasma level hadn’t association with preoperative red blood cell sedimentation level. Prevalence of preoperative acute myocardium infarction was higher in patients with high CRP level. In group +1, delay time was lower than other groups. The most common causes were cardiac causes. There wasn’t statistically significant correlation between CRP level and different postoperative complications. There wasn’t significant association between ICU stay time and postoperative hospital stay time and plasma high CRP level. Conclusion: Probably, plasma CRP level increases before surgery in acute myocardial infarction and results in high mortality rate. It seems that routine measurement of CRP in candidates for heart operation is beneficial for mortality rate prediction, so its increasing level can’t help to diagnosis newly cases
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.

Acquisition of the Alveo-Palatal Fricative /ʒ/ in L2 English and Jamaican Creole: A Comparative Study  [PDF]
Ahmed Mousa
Open Journal of Modern Linguistics (OJML) , 2015, DOI: 10.4236/ojml.2015.53020
Abstract: This study investigates the claim that the strategies employed by second/foreign language learners are the same as those used by speakers of Creole languages. The speech of two speakers of the well-known Broad Jamaican Creole is checked against the performance of Saudi learners of English, focusing on the production of the voiced alveo-palatal fricative/?/. The findings suggest that the speakers in the two groups produce the voiced affricate/d?/ instead, suggesting perhaps that the above claim is valid. This study provides external evidence to the validity of such theories as sound substitution, markedness, and historical sound change which are said to shape early language acquisition, including child language.
Vibration and Buckling Approximation of an Axially Loaded Cylindrical Shell with a Three Lobed Cross Section Having Varying Thickness  [PDF]
Mousa Khalifa Ahmed
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.23039
Abstract: On the basis of the thin-shell theory and on the use of the transfer matrix approach, this paper presents the vibrational response and buckling analysis of three-lobed cross-section cylindrical shells, with circumferentially varying thickness, subjected to uniform axial membrane loads. A Fourier approach is used to separate the variables, and the governing equations of the shell are formulated in terms of eight first-order differential equations in the circumferential coordinate, and by using the transfer matrix of the shell, these equations are written in a matrix differential equation. The transfer matrix is derived from the non-linear differential equations of the cylindrical shells with variable thickness by introducing the trigonometric series in the longitudinal direction and applying a numerical integration in the circumferential direction. The natural frequencies and critical loads beside the mode shapes are calculated numerically in terms of the transfer matrix elements for the symmetrical and antisymmetrical vibration modes. The influences of the thickness variation of cross- section and radius v
Attenuation in a Cylindrical Left Handed Material (LHM) Wave-Guide Structure  [PDF]
Hana Mohammed Mousa
Optics and Photonics Journal (OPJ) , 2012, DOI: 10.4236/opj.2012.21007
Abstract: This paper tackles the wave attenuation along with a cylindrical waveguides composed of a left Handed material (LHM), surrounded by a superconducting or metal wall. I used the transcendental equations for both TE and TM waves. I found out that the waveguide supports backward TE and backward TM waves since both permittivity and magnetic permeability of LHM are negative. I also illustrated the dependence of the TE and TM wave attenuation on the wave frequency and the reduced temperature of the superconducting wall (T/Tc). Attenuation constant increases by increasing the wave frequency and it shows higher values at higher T/Tc. Lowest wave attenuation and the best confinement are achieved for the thickest TE waveguide. LHM-superconductor waveguide shows lower wave attenuation than LHM-metal waveguide.
Stability of Nonlinear Te Surface Waves along the Boundary of Left-Handed Material  [PDF]
Hana Mohammed Mousa
Optics and Photonics Journal (OPJ) , 2012, DOI: 10.4236/opj.2012.22017
Abstract: This paper is concerned with the stability characteristics of nonlinear surface waves propagating along a left-handed substrate (LHM) and a non-linear dielectric cover. These characteristics have been simulated numerically by using the perturbation method. The growth rate of perturbation is computed by solving the dispersion equation of perturbation. I found that the stability of nonlinear surface waves is affected by the frequency dependence of the electric permittivity εh and magnetic permeability μh of the LHM. The spatial evolution of the steady state field amplitude is determined by using computer simulation method. The calculations show that with increasing the effective refractive index nx at fixed saturation parameter μp, the field distribution is sharpened and concentrated in the nonlinear medium. The waves are stable of forward and backward behavior. At higher values of nx, attenuated backward waves are observed.
Antireflection Coating at Metamaterial Waveguide Structure by Using Superlattices (LANS)  [PDF]
H. M. Mousa
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.58074

The characteristics of electromagnetic wave reflection and transmission by multilayered structures consisting of a pair of left-handed material (LHM) and superlattices (LANS) slabs inserted between two semi-infinite dielectric media are investigated for photovoltaic and solar energy applications. Maxwell’s equations are used to determine the electric and magnetic fields of the perpendicular polarized wave incident at each layer. Snell’s law is applied and the boundary conditions are imposed at each layer interface to calculate the reflected and transmitted coefficients of the structure. The reflected, transmitted powers are determined using these coefficients by a recursive method. The reflected and transmitted powers are computed in both visible and microwave spectral band with the appropriate LHM for each band and appropriate location of LANS in the structure. They are illustrated as a function of the incident wavelength, angle of incidence, magnetic fraction of LANS and thickness of the slabs with the emphasis on the appropriate refractive indices. I found that, zero reflectance and maximum transmittance of the incident powers are achieved for visible spectral band at a single frequency if LHM and LANS have the same refractive index of opposite signs with the same width and more magnetic material of LANS while the reflected power is zero for less magnetic material of LANS in the microwave spectral band which realizes antireflection coating in this structure.

Finite Element Simulation of an Unimolecular Thermal Decomposition inside a Reactor  [PDF]
Mohamed M. Mousa
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.42040
Abstract: This numerical study investigates the steady state unimolecular thermal decomposition of a chemical dissolved in water inside a parallel-plate reactor containing four heated circular rods using a penalty Galerkin finite element approach. The reactant fluid enters from the left inlet and exits from the right outlet of the reactor. All solid walls of the reactor are assumed to be thermodynamically isolated. The aim of the investigation is to illustrate the effects of the energy expelled during the reaction, temperature of the heated rods and fluid inlet velocity on the thermal field and concentration of the heat sensitive chemical. The simulation is conducted for different values of inlet velocity and rods temperature taking into consideration and neglecting the reaction energy. From the results, it is concluded that the thermal field and decomposition process of the chemical are significantly influenced by fluid velocity, rods temperature and the reaction type.
Evaluation of Regular Multistory Buildings Using IBC2009 Code and ESEE Regulations by Pushover Analysis Method  [PDF]
Mohamed Sobaih, Ahmed Mousa
Open Journal of Civil Engineering (OJCE) , 2016, DOI: 10.4236/ojce.2016.64049
Abstract: For structural design and assessment of reinforced concrete members, the nonlinear analysis has become an important tool. The purpose of the pushover analysis is to assess the structural performance by estimating the strength and deformation capacities using static, nonlinear analysis and comparing these capacities with the demands at the corresponding performance levels. This paper aims to compare the results given by IBC2009 code and ESEE regulations. In this paper, four RC frames having 5, 15, 20 and 30 storeys were designed for seismicity according to both the recently adopted seismic code in Abu Dhabi (IBC2009) and the ESEE regulations. A pushover analysis is carried out for these buildings using SAP2000 (Ver. 15) and the ultimate capacities of the buildings are established. The obtained pushover curves and plastic hinges distributions are used to compare between the IBC2009 code and ESEE regulations. The comparison showed that there was variation in the obtained results by the two codes and the buildings designed by IBC2009 code were more vulnerable.
Some Observations on Microsyntactic Units and Discourse Grammar of Kam  [PDF]
Mousa A. Btoosh
Open Journal of Modern Linguistics (OJML) , 2018, DOI: 10.4236/ojml.2018.84012
Abstract: This study aims to shed light on the microsyntactic units and discourse grammar of Kam, a language spoken in Guizhou, Hunan and Guangxi Provinces in China. To this end, the paper explores the use and functions of particles and classifiers, and how the discourse grammar elements operate across sentences to create texture, cohesion and convey the sender’s communicative intent. The corpus of this study consists of two short stories in addition to some other illustrative examples. Findings show that particles in Kam are used to mark unity and serve pragmatic presuppositions and assertions. Results also indicate that Kam, which features neither wh-movement nor subject-verb inversion in questions, uses particles to express interrogation, aspect and modality. Additionally, the findings reveal that nominal classifiers have less semantic limitations than the verbal ones. Finally, it has been observed that predicates don’t require the phonological appearance of their subjects as long as they are understood contextually.
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