الخلاصة Bahraini Parliamentary Elections and their Impact on the Popular Uprising) Bahrain has a distinguished constitutional and parliamentary experience, which distinct it from the other Gulf Cooperation Council (GCC) countries. Its experience in this area is the second after the experience of Kuwait to establish a system of government based on modern constitutional principles. As the government presented the Constitution to the Constituent Assembly elected by people and approved in 09/06/1973. After that, it witnessed the birth of the first parliament elected by the people in 1973, but the experiment did not last long and the parliament dissolved by Prince, and didn’t determine the period of the return of the working with the terms of the Constitution governing the functioning of the legislative process in Bahrain. Since 1975, the date of the dissolution of the National Bahrain council, Bahrain witnessed a wave of protests and sit-ins condemning its policy of rejecting the modus of the government, which did not subside even after trying to find specific Council appointed by the Prince, who has the Advisory power. The events of disagreement and dissatisfaction continued by some opponents parties and personalities, which always demand the return of the 1973 Constitution, despite reforms initiated by Sheikh (Hamad bin Isa Al Khalifa) in 2000, and using the National Action Charter, which some counted it as a positive step followed by other steps, that distinguished Bahrain from its neighboring Gulf countries. As a result, Bahrain has witnessed the return of the legislative elections in 2002, despite the county of the political associations which has weight in the representation of Bahrain’s street as well as some opponents figures, who tried to use any opportunity to reject and try to make their voice reach all platforms and religious media, or try to send petitions to the king himself to respond to their demands. The government's reaction about this was; indifference and tried to silence the voice of opposition by arrests or by putting the responsibility on the outside parties for all these protests and sit-ins. When these opponents parties entered the legislative elections in 2010/2006, they got a large percentage of the vote that enabled them to prove their power in the political domain. The government tries in different ways to keep equilibrium between them and the number of these parties. In the other way the government could not deny the existence or the actions of these parties, the Bahraini government must put in consideration the opponents’ popularity before doing a particular deed against them, especially as we witnessed a wave of protests and sit-ins in many Arab cities demanding change and reform. Some of these cities succeed in changing regimes as in the case of Egypt, Tunisia, Libya, and Yemen. Bahrain government should learn from all of this, and complete what it started in the field of reform and change, and not limit itself to change from the republic to the Kingdom. The change should be comprehensive and effective particularly with regard to the performance of the legislature power and the involvement of all classes of people in the process of political decision-making and improve the conditions of the poor people
Transparent thin films of CdO:Ce has been deposited on to glass and silicon substrates by spray pyrolysis technique for various concentrations of cerium (2, 4, and 6 Vol.%). CdO:Ce films were characterized using different techniques such as X-ray diffraction (XRD), atomic force microscopy(AFM) and optical properties. XRD analysis show that CdO films exhibit cubic crystal structure with (1 1 1) preferred orientation and the intensity of the peak increases with increasing's of Ce contain when deposited films on glass substrate, while for silicon substrate, the intensity of peaks decreases, the results reveal that the grain size of the prepared thin film is approximately (73.75-109.88) nm various with increased of cerium content. With a sur
... Show MoreThis work describes the weathering effects (UV-Irradiation, and Rain) on the thermal conductivity of PS, PMMA, PS/PMMA blend for packaging application. The samples were prepared by cast method at different ratios (10, 30, 50, 70, and 90 %wt). It was seen that the thermal conductivity of PMMA (0.145 W/m.K), and for PS(0.095 W/m.K), which increases by PS ratio increase up to 50% PS/PMMA blend then decreased that was attributed to increase in miscibility of the blend involved. By UV-weathering, it was seen that thermal conductivity for PMMA increased with UV-weathering up to (30hr) then decreased, that was attributed to rigidity and defect formation, respectively. For 30%PS/PMMA, there results showed unsystematic decrease in thermal conduct
... Show MoreIn this work, results of a mathematical analysis of the role of workpiece preheating in laser keyhole welding were presented. This analysis considered the steady-state welding as well as certain range of boundary conditions over which preheating effect would be indicated. This work is an attempt to interpret the role of preheating to increase welding depth and perform keyhole welding with high quality using physical and thermal properties of steel alloys.
In this work, the effect of vortex shedding on the solar collector performance of the parabolic trough solar collector (PTSC) was estimated experimentally. The effect of structure oscillations due to wind vortex shedding on solar collector performance degradation was estimated. The performance of PTSC is evaluated by using the useful heat gain and the thermal instantaneous efficiency. Experimental work to simulate the vortex shedding excitation was done. The useful heat gain and the thermal efficiency of the parabolic trough collector were calculated from experimental measurements with and without vortex loading. The prototype of the collector was fabricated for this purpose. The effect of vortex shedding at different operation condition
... Show MoreObjective: Dental caries is a chronic infectious disease that is prevalent worldwide in all age groups. Numerous attempts have been made to develop conservative approaches to halt caries progression and restore enamel defects. This study aimed to investigate the effect of applying grape seed extract and chicken eggshell extract on the microhardness of demineralized enamel in permanent teeth. Methods: Forty-eight sound upper first premolars were used. Following demineralization with the demineralizing solution for 96 hours, they were distributed into four groups consistent with the treatment agent used: group A was treated with casein phosphopeptide amorphous calcium phosphate (as a control group), group B was treated with grape se
... Show MoreThe increasing anti-bacterial drug resistance is one of the biggest challenges facing doctors around the globe, so finding alternative treatments is one of the ideal options to overcome this problem. The cruciferous family is one of the wealthiest plants worldwide because it contains the most important secondary metabolites, glucosinolates, known for their anti-microbial properties. The present study aimed to evaluate the anti-bacterial effect of glucosinolates (Sinigrin) against eight bacterial isolates (Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Actinomyces, Proteus mirabilis and Streptococcus pneumoniae). The current study investigated six concentrations of pure
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