999 research outputs found

    Hepatic and gastrointestinal complications after adult cardiac surgery

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    Background: Gastrointestinal tract (GIT) complications are associated with increased morbidity and mortality after cardiac surgery. Therefore, The goal of this research was to estimate the frequency of GIT and hepatic complications after cardiac surgery and to determine the risk factors for these complications. Additionally, we studied the effect of these complications on the outcomes of surgery. Methods: This longitudinal study included 139 consecutive patients who underwent elective cardiac surgery. Patients were grouped according to the GIT and hepatic complications into two groups. Postoperative outcomes were compared between the two groups.   Results The mean age was 59.43 years, and 106 patients were males (76%). The GIT and hepatic complications rate was 15.8% (n= 22). Hepatic dysfunction occurred in 8.6% of cases, GIT bleeding in 2.9%, paralytic ileus in 2.2%, fulminant hepatic failure in 2.2%, and GIT bleeding combined with paralytic ileus in 0.7%. The overall mortality was 7.2 % (n= 10). The mortality rate in patients who developed GIT and hepatic complications was 45.5% (n= 10 out of 22 patients). There was statistically significantly higher mortality (10 (45.5%) vs. 0; P= 0.001), cardiac arrest (10 (45.5%) vs. 3 (2.6%); P= 0.001), and reoperation rate (5 (22.7%) vs. 6 (5.1%); P= 0.005) among patients with GIT or hepatic complications. Conclusion: Patients with hepatic and GIT complications could have higher mortality, morbidity, and longer hospital stay than the non-complicated group

    Trip Attraction Rates of Banking Services in Developing Countries' Cities

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    There is a lack of studies on trip generation rates related to land use activities in developing countries. The absence of trip rates makes transportation planners use rates listed in the Institute of Transportation Engineers (ITE) Trip Generation Manual, which may lead to unrealistic results. The study aims to determine trip attraction rates for banking services in Zagazig city, Egypt, and evaluate the factors affecting the attracted trips to the banks. The study has designed and implemented a comprehensive data collection and analysis program. The study sample contained nine banks. The study has conducted field surveys that counted the total number of persons entering/exiting the bank under investigation and the generated traffic volume of the adjacent street. The trip rates have been established in terms of independent variables, i.e., gross floor area, the total number of employees, and the number of tellers for different types of banks. Findings showed that average trip attraction rates for public banks were higher than for private banks. There was a strong relationship between trip attractions and the total number of employees at public banks. The most representative factor of private banks' trip attractions was the number of tellers. Doi: 10.28991/CEJ-2023-09-02-07 Full Text: PD

    Assessing surface solar irradiance in Northern Africa desert climate and its long-term variations from Meteosat images

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    International audienceTwo databases of solar surface irradiance (SSI) derived from satellites are compared to ground measurements for Algeria, Egypt, Libya and Tunisia. It is found that it is possible to accurately derive the SSI from geostationary meteorological satellites, even with a coarse spatial resolution. The two databases HelioClim-1 and SSE exhibit similar and good performances. The bias is lower for SSE than for HelioClim-1, as a whole; inversely, HelioClim-1exhibits a smaller scattering of data compared to ground measurements (smaller standard-deviation) than the SSE, allowing better performances when mapping the long-term variations in the SSI. These long-term variations from 1985 to 2005 show that these four nations experience dimming as a whole. Detailed analyses of the range of dimming at sites with long-term records and of its spatial distribution have been performed. It has been found that the analysis of SSI from HelioClim-1 supports the findings for the individual sites. Several phenomena may explain the dimming. One is the transportation of sand dust northwards from the Sahel; another one is the increase in urbanization and a third one is the increase in cloud cover and aerosol loading

    The correlation Between Vitamin D Metabolite Levels With Relapse Rate And Disability In Multiple Sclerosis

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    Background: Multiple sclerosis is a major cause of disability in young adults. Vitamin D is a potent immunomodulator and the protective effect of Vitamin D on multiple sclerosis is supported by the reduced risk associated with sun exposure and use of Vitamin D supplements. Moreover, high circulating levels of Vitamin D have been associated with lower risk of multiple sclerosis. Objectives: The aim of this study is to clarify the relationship between vitamin D metabolite level and disability and relapse rate in multiple sclerosis. Methods: Fifty four Multiple sclerosis patients fulfilling McDonald's criteria and 70 controls matched in age, sex and same geographical areas,35 (64.8 %) patients were with relapsing remitting type,9 (16.6 %) patients were primary progressive type and 10 (18.6 %) patients were secondary progressive type. For the control group, 28 of them were with non-MS demyelinated neurological diseases including 18 with chronic inflammatory demyelinating polyneuropathy, 6 were Gillian Barrie syndrome and 4 were acute demyelinating encephalomyelitis, and the remaining forty two were apparently healthy controls. All multiple sclerosis patients and controls are subjected to assessment of 25(OH) D serum level by RIA. Results: very high statistically significant difference between patients and controls, also very high statistically significant negative correlation in all patients, and disability and relapse rate                                               .                                                                                                                Conclusion: There is an important role of vitamin D in outcome of multiple sclerosis and the relapsing rate of the relapsing remitting type Keywords: multiple sclerosis,vitamin D,relapse,disabilit

    Reliability analysis of the new exponential inverted topp–leone distribution with applications

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    The inverted Topp–Leone distribution is a new, appealing model for reliability analysis. In this paper, a new distribution, named new exponential inverted Topp–Leone (NEITL) is presented, which adds an extra shape parameter to the inverted Topp–Leone distribution. The graphical representations of its density, survival, and hazard rate functions are provided. The following properties are explored: quantile function, mixture representation, entropies, moments, and stress– strength reliability. We plotted the skewness and kurtosis measures of the proposed model based on the quantiles. Three different estimation procedures are suggested to estimate the distribution parameters, reliability, and hazard rate functions, along with their confidence intervals. Additionally, stress–strength reliability estimators for the NEITL model were obtained. To illustrate the findings of the paper, two real datasets on engineering and medical fields have been analyzed
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