Archives-December 

The incidence of coronary spasm appears to be decreasing, probably due to the widespread use of bradycardia calcium channel blockers, statin, and reducing smoking also. Many studies have shown the pathological association of atheroma plaque and coronary spasm. The new imaging techniques: Optical coherence tomography (OCT) and Intravasculaire ultrasound (IVUS), allows accurate analysis of arterial tunnels. In this article, we report a case of a patient who presented with refractory spastic angina, wich was complicated by acute coronary syndrome many month later.

In Ethiopia, the modern concept of corporation and principle of corporate governance is new and at its enfant stage even if the commercial code that governs company in Ethiopia has enacted since 1960. The corporate governance regime of private limited company in Ethiopia has many legal and practical problems. This article devoted on the legal and practical problems associated with the Ethiopian private limited companies. In doing so the researcher employed doctrinal research approach. The corporated governance problems associated the absence of governance board to the private limited company in Ethiopia is the main apprehension that makes the researcher to carry out a study on the corporate governance of PLC in Ethiopia. The study divulge that the absence of board of directors in the governance of private limited companies in Ethiopia as a big governance problem of PLCs that the researcher has tried to address.

In this paper, study on the electrodeposition of ZnNi/nanosilica alloy coating on carbon steel and in?uence of 5g/L nanosilica in the plating bath on some properties such as morphology, structure characteristics and corrosion resistance of the ZnNi/nanosilica coating were conducted. The results revealed that ZnNi/nanosilica composite coating contained 16.37 % Ni and 0.32 % Si. Only the phase ?Ni5Zn21 were observed in the ZnNi/nanosilica alloy coatings. The thickness of the ZnNi/nanosilica coating was 16.56 µm. The corrosion resistance on the ZnNi/nanosilica coating was evaluated by time for red rust appearing in salt fog test as 900 hours.

Main purpose of this study was to compare the prevailing decision making practices in the universities of Pakistan. The decision making practice was compared on the following aspects: a. Decision Dictated by the chair, b. Decisions made by a majority vote c. Decisions taken on political grounds in public and private sector universities. It was found that both public and private sector have same procedure of decisions making and are made by a majority vote. Differences were found between public and private sector universities that decisions are dictated by the chair and are taken according to internal and external pressure. This practice was observed mostly in public sector universities of Pakistan.

This paper presents design and analysis of an LCL-based voltage source converter using for delivering power of a distributed generation source to power utility and local load. LCL filer in output of the converter analytically is designed and its different transfer functions are obtained for assessment on elimination of any probable parallel resonant in power system. The power converter uses a controller system to work on two modes of operation, stand-alone and grid-connected modes, and also has a seamless transfer between these two modes of operation. Furthermore, a fast semiconductor-based protection system is designed for the power converter. Performance of the designed grid interface converter is evaluated by using an 85-kVA industrial setup.

This research paper is examined to find out the relationship between customer loyalty, service quality, Bank reputation and customer satisfaction in the Pakistan banking industry. This research paper uses administrative questionnaire. The variable include in this paper are customer loyalty as dependent variable and customer satisfaction, bank reputation and service quality as independent variable. The questionnaire includes 9 items of service quality, 5 items of bank reputation, 5 items of customer satisfaction and 5 items of customer loyalty. A sample size of 50 respondents is conducted in Narowal cities, Pakistan. A regression analysis is performed to study the impact of banking service quality on customer satisfaction in Pakistan banking industry. The findings from regression analysis suggest that banking services quality significantly influenced by customer loyalty. . In addition, the results from linear regressions analysis show that the Tangible dimension has the largest influence on customer loyalty.

The association diabetes and pregnancy is a common gestational situation that constitutes a real public health in Morocco. The gestational diabetes is defined by the World Health Organization (WHO) as glycemic tolerance disorder that begins or is diagnosed for the for the first time during pregnancy and may cause maternal and/or fetal complications. Our work’s goal is to analyse the epidemiological profile of the diabetic women studied, to follow the course of pregnancy and childbirth and to assess the maternal and fetal morbidity. We present a descriptive retrospective study conducted at the obstetrical gynecology department of high-risk pregnancy within the hospital of maternity SOUISSI in RABAT, MOROCCO, involving 19 pregnant and diabetics women over 326 women consulted. The study lasted 12 months, from January 2019 to December 2019. Data was collected by using medical records. In our series, the prevalence of gestational diabetes is 5,8 %. 8 women have pre-existing diabetes (42,2%) and only 3 have scheduled their pregnancy (15,7%). 11 women have gestational diabetes (57,9%). All our patients were followed and had a controlled glycemic index. This study revealed a large number of maternal complications dominated by urinary tract infections, which represents 31 %, followed by hypoglycemia with a 10,5%, preeclampsia and cetoacidosis in 5% each. For fetal complications, we had 53% cases of macrosomia, 23% of respiratory distress, 18.6% of prematurity, 2,32% of congenital complications. Our results are consistent with most of the series in the literature. These pregnancies remain with more risks than under normal glucose tolerance. Nevertheless, the prognosis of these pregnancies can be improved by early and multidisciplinary management to achieve a glycemic balance avoiding maternal-fetal complications.

The diffusion of slow electrons in Nitrogen ,Argon and Helium gases in uniform electric fields has been verified for ratios of electric field to pressure from 1.611 to 16.115,0.0322 to 0.3223 and 3.9131×10-3 t0 0.9767 (V/cm .Torr-1 ) respectively. These are calculations lead to a determination of the ratio of electron drift velocity to diffusion coefficient . By assuming a distribution in velocity of the electrons in the swarm, the Townsend energy factor KT and the mean electron velocity can be computed as a function of E/P, where E is electric field and P is the gas pressure, where the mean free path at unit pressure, the average energy loss per collision, and the gas kinetic cross section can be calculated. The results are presented in Figures forms. The obtained results appeared a good agreement with the experimental and theoretical data.

A study on the influence of trampling on the biomass production of six Brachiaria ecotypes, namely Brachiaria decumbens cv Bazilisk; Brachiaria mulato; Brachiaria brizantha cv Xaraes; Brachiaria ruziziensis; Brachiaria brizantha cv Nioka and Brachiaria brizantha cv Piata at Nioka, was carried out to observe their production and identify those with an interesting resilience to the above-mentioned factor.The experimental set-up was that of randomized complete blocks comprising six treatments (six ecotypes mentioned above) and repeated three times. The six Brachiaria ecotypes were subjected to the trampling disturbance factor. The following parameters were measured: recovery rate and speed, tillering, biomass.After observation, the results were as follows:The highest biomass for this factor before and after trampling was obtained by B. brizantha cv Piata, while the lowest production was deplored in B. brizantha cv Nioka and B. mulato.

It is well known fact that concrete displays a brittle behaviour and very little tensile capacity. This type of brittleness can be reduced by incorporation of fibers in concrete which lead to better strength properties and impact resistance. This paper presents on the study of compressive strength properties of concrete cube specimens with and without addition of discrete steel fiber of two different propositions. It is imperative to note that the 28 days mean compressive strength have been used to characterize the three types of concrete, i.e., plain control concrete, fully fiber reinforced concrete and retrofitted concrete, based on the experimental results obtained through direct compression test of cube specimens. Concretes containing steel fibers reinforced at the same volume fraction (1%) were compared in terms of compressive strength properties for three different sizes of cube specimens, namely150x150x150mm, 100x100x100mm, 70.6x70.6x70.6mm. In addition, comparative analysis on the experimental results of compressive strength for all the three types of concrete has been made. It is observed that steel fiber enhanced the strength properties and impact resistance of concrete as compared to the plain concrete results. It is also found comparable results between fully fiber reinforced concrete and retrofitted concrete. It is further observed that the strength is increasing consistently to the decreasing sizes of specimens.