EFFECT OF DIABETES MELLITUS TYPE II ON ACTIVATED PARTIAL THROMBOPLASTIN TIME AND PROTHROMBIN TIME

Diabetes mellitus contributes for initiation and progression of micro vascular and macro vascular complications. Complication includes coagulation impairment however Shortened activated partial thromboplastin time (aPTT) values may reflect hypercoaguable state, which is associated with increased thrombotic risk and adverse cardiovascular events.  Objective: The present study was conducted to study the aPTT and PT levels in patients with diabetes mellitus type II. Material and method: A sample of 50 persons were selected, 30 patients suffering from DM as type II from Al-wahda teaching hospital, Derna-Libya. At the same time a group of 20 randomly selected healthy adults to participate in the study as control group. Result: The mean value of APTT in T2DM individuals was significant lower (28.95 ±7.54) seconds as compare with control, (34.12±2.82) seconds (P = 0.06).  The mean value of prothrombin time (PT) among T2DM individuals was (14.04 ±2.96) seconds and the mean value of PT among healthy individuals was (13.5 ± 1.54) seconds. There was no significant difference in PT of T2DM individuals P < 0.05. Conclusion: From this study, it may be concluded that shorted APTT confirms that T2DM is a hyper-coagulable state due to which there is increased risk of thrombotic events

EFFECT OF DIABETES MELLITUS TYPE II ON ACTIVATED PARTIAL THROMBOPLASTIN TIME AND PROTHROMBIN TIME

Diabetes mellitus contributes for initiation and progression of micro vascular and macro vascular complications. Complication includes coagulation impairment however Shortened activated partial thromboplastin time (aPTT) values may reflect hypercoaguable state, which is associated with increased thrombotic risk and adverse cardiovascular events.  Objective: The present study was conducted to study the aPTT and PT levels in patients with diabetes mellitus type II. Material and method: A sample of 50 persons were selected, 30 patients suffering from DM as type II from Al-wahda teaching hospital, Derna-Libya. At the same time a group of 20 randomly selected healthy adults to participate in the study as control group. Result: The mean value of APTT in T2DM individuals was significant lower (28.95 ±7.54) seconds as compare with control, (34.12±2.82) seconds (P = 0.06).  The mean value of prothrombin time (PT) among T2DM individuals was (14.04 ±2.96) seconds and the mean value of PT among healthy individuals was (13.5 ± 1.54) seconds. There was no significant difference in PT of T2DM individuals P < 0.05. Conclusion: From this study, it may be concluded that shorted APTT confirms that T2DM is a hyper-coagulable state due to which there is increased risk of thrombotic events

Thermomechanical properties of a single hexagonal boron nitride sheet

Using atomistic simulations we investigate the thermodynamical properties of a single atomic layer of hexagonal boron nitride (h-BN). The thermal induced ripples, heat capacity, and thermal lattice expansion of large scale h-BN sheets are determined and compared to those found for graphene (GE) for temperatures up to 1000 K. By analyzing the mean square height fluctuations $< h^2>$ and the height-height correlation function $H(q)$ we found that the h-BN sheet is a less stiff material as compared to graphene. The bending rigidity of h-BN: i) is about 16% smaller than the one of GE at room temperature (300 K), and ii) increases with temperature as in GE. The difference in stiffness between h-BN and GE results in unequal responses to external uniaxial and shear stress and different buckling transitions. In contrast to a GE sheet, the buckling transition of a h-BN sheet depends strongly on the direction of the applied compression. The molar heat capacity, thermal expansion coefficient and the Gruneisen parameter are estimated to be 25.2 J\,mol$^{-1}$\,K$^{-1}$, 7.2$\times10^{-6}$K$^{-1}$ and 0.89, respectively

Stakeholder Perception of Service Quality in Qatar Higher Education Institutions: An Application to Qatar University

Managing quality of services offered by institutions of higher education is important in any country due to the inherent aim of producing quality graduates from programs offered in the university. Qatar has made substantial investments in higher education. Qatar University, being the national university of the country, the perception of stakeholders on the service quality in education becomes an important factor for developing a quality education system. Therefore, the main goal of this thesis is studying the perceptual context of quality of services provided by higher education institutions among the students in Qatar University. A research framework is developed for quality assessment with seven hypotheses that are commonly used in the literature. A survey with 65 instruments was used for gathering the required data for the analysis. The results presented here are based on survey response of 397 students. Seven dimensions (determinants) of services quality were identified in this study: the original dimensions of the SERVQUAL namely, reliability, responsiveness, assurance, empathy, and tangibles, and; two additional dimensions image and culture/value. The results proved significant positive association between the provided services quality and students' loyalty. Finally, the findings indicated that there are no statistically significant differences in the perception of services quality based on the students' demographic variables (gender, age, nationality, and education level).In terms of perceptions, the analysis showed that the provided services of the university falls short of meeting the students' expectations. The finding indicates that, in order to provide quality education in Qatar University, expectation of student's needs should be carefully understood and addressed. Management also needs to consider factors such as corporate image and culture/value when measuring service quality. Although there is a limitation in the responses as the outcome of this study is based on the survey of students, this nevertheless provides an attempt to study services quality in Qatar education sector. The findings of this thesis is expected to help filling the literature gaps by providing empirical knowledge on quality of services assessment and customer's satisfaction in higher education