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Eastern Province (eastern + province)
Selected AbstractsPERMEABILITY ANISOTROPY DISTRIBUTIONS IN AN UPPER JURASSIC CARBONATE RESERVOIR, EASTERN SAUDI ARABIAJOURNAL OF PETROLEUM GEOLOGY, Issue 2 2007A. Sahin Most classical reservoir engineering concepts are based on homogeneous reservoirs despite the fact that homogeneous reservoirs are the exception rather than the rule. This is especially true of carbonate reservoirs in the Middle East which are known to be highly heterogeneous. The realistic petrophysical characterization of these kinds of reservoirs is not an easy task and must include the study of directional variations of permeability. Such variation can be incorporated into engineering calculations as the square root of the ratio of horizontal to vertical permeability, a parameter known as the anisotropy ratio. This paper addresses the distribution of anisotropy ratio values in an Upper Jurassic carbonate reservoir in the Eastern Province of Saudi Arabia. Based on whole core data from a number of vertical wells, statistical distributions of horizontal and vertical permeability measurements as well as anisotropy ratios were determined. The distributions of both permeability measurements and anisotropy ratios have similar patterns characterized by considerable positive skewness. The coefficients of variation for these distributions are relatively high, indicating their very heterogeneous nature. Comparison of plots of anisotropy ratios against depth for the wells and the corresponding core permeability values indicate that reservoir intervals with lower vertical permeability yield consistently higher ratios with considerable fluctuations. These intervals are represented by lower porosity mud-rich and/or mud-rich/granular facies. Granular facies, on the other hand, yielded considerably lower ratios without significant fluctuations. [source] Childhood stroke in Eastern Province, KSA: pattern, risk factors, diagnosis and outcomeACTA PAEDIATRICA, Issue 10 2009Abdelhady Taha Emam Abstract Background and purpose:, Stroke has been increasingly recognized in children in recent years, but diagnosis and management can be difficult because of the diversity of underlying risk factors, atypical presentation and the absence of a uniform treatment approach. The aim of this study was to examine risk factors, clinical presentation, imaging findings and outcomes of paediatric stroke in Eastern Province, Kingdom of Saudi Arabia (KSA). Subjects and methods:, We evaluated 25 patients (11 boys and 14 girls) using computerized tomography scan of the brain, magnetic resonance (MR) imaging and MR angiography. Cardiac assessment, haematological tests, immunological tests, infection and metabolic screening were also performed in the patients. After discharge, the patients were monitored regularly in the neurology clinic to detect their outcomes. Results:, A total of 76% of the patients presented with ischaemic stroke, while the remaining 24% had haemorrhagic stroke. Sickle cell disease (SCD) was the commonest risk factor for stroke (36%) followed by non determinate causes (20%). Seizure was the commonest clinical presentation (54%) followed by haemiplegia (31%) and decreased level of consciousness (30%). Recurrence occurred in SCD patients (80%) and patients with moyamoya disease (20%). Regarding the outcome, long-term deficit was the commonest (44%), while short-term deficit and death were equal (28% each). Conclusion:, Our study in Eastern Province, KSA, showed agreement with other studies regarding risk factors, clinical presentation, imaging features and outcomes of stroke in children, yet with some points of differences, which are as follows: (1) SCD is the commonest risk factor in our study population, while in Chinese study it was not, (2) The percentage of cardiac disorders as a risk factor in this study was less than that in the European and American studies, and (3) there was relative discrepancy regarding predictors of outcome. [source] Social support and symptoms of postpartum depression among new mothers in Eastern TurkeyJOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 4 2008Emel Ege Abstract Aim:, The aim of the present study was to examine the relationship between symptoms of postpartum depression and social support in new mothers in a semi-rural province (Malatya) of Eastern Turkey. Methods:, This is a descriptive, cross-sectional study. The study was conducted with a 12-item Multidimensional Scale of Perceived Social Support (MSPSS) questionnaire, a 10-item Edinburgh Postnatal Depression Scale (EPDS) questionnaire, and a 16-item demographic/obstetric questionnaire designed by the authors. 364 women who were between 6 to 48 weeks postpartum were included in the study. Results:, Symptoms of postpartum depression were negatively correlated with social support (,0.39, P = 0.000). The frequency of the prevalence of symptoms of postpartum depression was 33.2%. The study showed that EPDS mean score was related to several factors, including age, woman's education, woman's occupation, socioeconomic status of family, spouse's education, number of years married, parity, planned pregnancy, method of delivery, knowledge of infant care, sharing of problems with a close person, past psychiatric history and family support during the postnatal period in an Eastern province of Turkey. Conclusion:, Symptoms of postpartum depression were negatively correlated among Turkish women living in the Malatya province of Eastern Turkey and were associated with the level of social support. The prevalence of postpartum depression was higher than in the published reports regarding most regions of Turkey, with the exception of Northeastern Turkey. [source] Firm Size, Industry Mix and the Regional Transmission of Monetary Policy in GermanyGERMAN ECONOMIC REVIEW, Issue 1 2004Ivo J. M. Arnold Monetary transmission; regional effects; industry effects; firm size Abstract. This paper estimates the impact of interest rate shocks on regional output in Germany over the period from 1970 to 2000. We use a vector autoregression (VAR) model to obtain impulse responses, which reveal differences in the output responses to monetary policy shocks across ten German provinces. Next, we investigate whether these differences can be related to structural features of the regional economies, such as industry mix, firm size, bank size and openness. An additional analysis of the volatility of real GDP growth for the period 1992,2000 includes the Eastern provinces. We also present evidence on the interrelationship between firm size and industry, and compare our measure of firm size with those used in previous studies. We conclude that the differential regional effects of monetary policy are related to industrial composition, but not to firm size or bank size. [source] The Vulnerability of Middle-Aged and Elderly Patients to Hepatitis C Virus Infection in a High-Prevalence Hospital-Based Hemodialysis SettingJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 2 2004Anil K. Saxena MD Objectives: To determine the relationship between advancing age and the risk of acquiring hepatitis C virus (HCV) infection, through evaluation and statistical comparison of seroprevalence and seroconversion rates in different age groups of patients on long-term hemodialysis (HD). Design: Retrospective cohort study. Setting: Hemodialysis facility of King Fahad Hospital and Tertiary Care Center, Al-Hasa region of the eastern province of Saudi Arabia. Participants: One hundred ninety-eight patients with end-stage renal disease enrolled for long-term HD therapy from September 1995 to September 2000. Measurements: HCV seroprevalence and seroconversion rates. Results: The overall HCV seroprevalence of 43.4% (86/198) and seroconversion rate of 8.6% per year were recorded. Patients aged 55 to 64 had the highest anti-HCV prevalence (55.3% (26/47)) and annual seroconversion rates (11.0%). Those aged 65 to 74 had the next-highest prevalence (48.9% (24/49)) and seroconversion rate (9.7%), and patients aged 15 to 24 had the lowest prevalence (12.5% (1/8)) and seroconversion rate (2.5%) (reference group). Conclusion: Significantly higher annual seroconversion rates in those aged 55 to 64 and 65 to 74 during a shorter dialysis period (35.6 and 32.7 vs 58.0 months), suggest the greater susceptibility of the middle-aged and elderly patients to acquisition of HCV infection than the younger (15,24 years) group. This could be attributed to the combined effect of immunosuppression associated with advancing age, uremia, and undernutrition, but multicenter molecular follow-up studies with larger sample sizes would be needed to corroborate these findings and plan appropriate strategies for these high-risk groups. [source] Occurrence, ecology and potential impact of the New Zealand wheat bug Nysius huttoni White (Hemiptera: Lygaeidae) in BelgiumEPPO BULLETIN, Issue 2 2010J. Bonte In 2002 the New Zealand wheat bug Nysius huttoni White was observed for the first time in the Netherlands and Belgium. The introduction of N. huttoni to these regions presumably occurred via overseas transport of apple and kiwi fruits from New Zealand. Laboratory experiments showed that both eggs and adults of N. huttoni were capable of surviving cold conditions similar to those in overseas transportation. Specimens were sampled in Belgium and the Netherlands, and a DNA sequence analysis indicated a 100% similarity with N. huttoni material collected in Christchurch, New Zealand. The distribution of the lygaeid in Belgium in 2008 was studied based on a systematic sampling at 105 locations. The bug had been able to spread over most of the Belgian territory, with the exception of the most southern and eastern provinces. Given the poor flight capacity of Belgian N. huttoni populations, other methods of dispersal may be involved. N. huttoni occurred primarily in ruderal habitats, and its weedy host plants belong to very common plant families. Several observations support N. huttoni not being a threat for agricultural crops in Belgium under the present conditions of climate and soil usage. [source] | ||||||||||