2,169 research outputs found
Phase Flow Rate Measurements of Annual Flows
No full textThe Annular flow regime makes measurement of the total
liquid flow rate difficult. It is even more difficult to
measure the individual flow rate of either the oil or the
water. In a vertical Perspex tube (i.d. = 50 mm) using a
newly-designed flow loop in the University of
Huddersfield, annular flow was established and different
measurements were carried out. One possible on-line
measurement technique to achieve the oil volume fraction
measurement is an automated bypass system using
solenoid valves. An ultrasonic flow meter was designed to
serve the purpose of measuring the velocity of the gas in
the core. In this study, the used techniques include the
use of Conductance Flow Meter to measure the liquid film
thickness and to obtain the film velocity using the crosscorrelation
technique. The results of the present work
have shown a good agreement with Zabaras and Dukler’s
work which indicates the success of the new
measurement techniques
La Ciudad de Dios. Homenaje al P. Angel C. Vega, O.S. A., 1968
No full textHoussiau Albert. La Ciudad de Dios. Homenaje al P. Angel C. Vega, O.S. A., 1968. In: Revue théologique de Louvain, 1ᵉ année, fasc. 2, 1970. pp. 213-214
Quality of life of patients with chronic obstructive pulmonary disease in the Gulf Cooperation Council countries
No full textObjective: To assess the health-related quality of life (HRQL) of patients with chronic obstructive pulmonary disease (COPD) in 4 Gulf Council Cooperation (GCC) countries. Methods: We conducted a cross-sectional survey between December 2011 and March 2012 in the following countries: Kingdom of Saudi Arabia (Riyadh, Dammam, and Jeddah), Kuwait, Bahrain, and the United Arab Emirates. The HRQL was measured using the COPD Assessment Test (CAT) and the Chronic Respiratory Disease Questionnaire-Self-Administered Standardized questionnaire (CRQ-SAS). Results: We recruited 120 patients from 6 centers in 4 countries. Their average forced expiratory volume (FEV)1 was 49.3percent (± 13.4) of predicted, and the ratio of FEV1 to forced vital capacity was 0.58 (± 0.11). The average COPD Assessment Test (CAT) score was 20.4 ± 7.6; CAT scores were highest for Riyadh (24.1 ± 7.7); and lowest for Kuwait (18.5 ± 9.2), with no significant difference between the centers. For the CRQ-SAS, the dyspnea domain score was 4.6 ± 1.6, the fatigue domain score was 4.3 ± 1.3, the emotional domain was 4.6 ± 1.2, and the mastery domain was 4.8 ± 1.4. The correlation coefficients of the association between the CAT score and the 4 domains of the CRQ-SAS for all of the centers combined was statistically significant. Conclusion: The CAT and CRQ-SAS revealed that the patients with COPD experienced a moderate to severe impact from the disease, and a considerably compromised quality of life in the GCC countries.Al Moamary Mohamed S, 2012, J Infect Public Health, V5, P159, DOI 10.1016-j.jiph.2012.01.002; Al Moamary MS, 2011, BMC PULM MED, V11, DOI 10.1186-1471-2466-11-21; Al Ghobain M, 2011, ANN SAUDI MED, V31, P129, DOI 10.4103-0256-4947.77485; Al-Haqwi AI, 2010, ANN THORAC MED, V5, P145, DOI 10.4103-1817-1737.65044; Al-Hazzaa HM, 2012, SAUDI MED J, V33, P459; Al-Moamary MS, 2011, SAUDI MED J, V32, P1028; Al-Moamary MS, 2008, SAUDI MED J, V29, P271; Al Moamary MS, 2010, MED PRIN PRACT, V19, P373, DOI 10.1159-000316376; Al Mutairi SS, 2006, RESPIROLOGY, V11, P449, DOI 10.1111-j.1400-1843.2006.00873.x; Al-Riyami AA, 2003, SAUDI MED J, V24, P875; Al-Turki YA, 2006, SAUDI MED J, V27, P700; [Anonymous], 1995, AM J RESP CRIT CARE, V152, P1107; Bednarek M, 2008, THORAX, V63, P402, DOI 10.1136-thx.2007.085456; Behbehani NN, 2004, SAUDI MED J, V25, P585; Bullinger M, 2003, ADV EXP MED BIOL, V528, P113; Chaouachi K, 2009, MED HYPOTHESES, V73, P623, DOI 10.1016-j.mehy.2009.06.016; De Civita M, 2005, PHARMACOECONOMICS, V23, P659, DOI 10.2165-00019053-200523070-00003; Gershon AS, 2010, ARCH INTERN MED, V170, P560, DOI 10.1001-archinternmed.2010.17; Global Initiative for Chronic Obstructive Lung Disease (GOLD), GLOB STRAT DIAGN MAN; Halbert RJ, 2006, EUR RESPIR J, V28, P523, DOI 10.1183-09031936.06.00124605; IBM Corp. Released, 2010, IBM SPSS STAT WIND V; Jones PW, 2011, EUR RESPIR J, V38, P29, DOI 10.1183-09031936.00177210; Jones PW, 2009, EUR RESPIR J, V34, P648, DOI 10.1183-09031936.00102509; Jordan RE, 2010, THORAX, V65, P492, DOI 10.1136-thx.2009.129395; Knishkowy B., 2005, PEDIATRICS, V116, P113; Mannino DM, 2007, LANCET, V370, P765, DOI 10.1016-S0140-6736(07)61380-4; Oh EG, 2009, INT J TUBERC LUNG D, V13, P580; Puhan MA, 2004, RESP MED, V98, P342, DOI 10.1016-j.rmed.2003.10.013; Raherison C, 2009, Eur Respir Rev, V18, P213, DOI 10.1183-09059180.00003609; Rodriguez-Roisin R, 2012, ARCH BRONCONEUMOL, V48, P286, DOI 10.1016-j.arbres.2012.02.018; Schunemann HJ, 2003, CHEST, V124, P1421, DOI 10.1378-chest.124.4.1421; Schunemann HJ, 2005, EUR RESPIR J, V25, P31, DOI 10.1183-09031936.04.00029704; Williams JEA, 2001, THORAX, V56, P954, DOI 10.1136-thorax.56.12.95433
Quality of life of patients with chronic obstructive pulmonary disease in the Gulf Cooperation Council countries
No full textObjective: To assess the health-related quality of life (HRQL) of patients with chronic obstructive pulmonary disease (COPD) in 4 Gulf Council Cooperation (GCC) countries. Methods: We conducted a cross-sectional survey between December 2011 and March 2012 in the following countries: Kingdom of Saudi Arabia (Riyadh, Dammam, and Jeddah), Kuwait, Bahrain, and the United Arab Emirates. The HRQL was measured using the COPD Assessment Test (CAT) and the Chronic Respiratory Disease Questionnaire-Self-Administered Standardized questionnaire (CRQ-SAS). Results: We recruited 120 patients from 6 centers in 4 countries. Their average forced expiratory volume (FEV)1 was 49.3percent (± 13.4) of predicted, and the ratio of FEV1 to forced vital capacity was 0.58 (± 0.11). The average COPD Assessment Test (CAT) score was 20.4 ± 7.6; CAT scores were highest for Riyadh (24.1 ± 7.7); and lowest for Kuwait (18.5 ± 9.2), with no significant difference between the centers. For the CRQ-SAS, the dyspnea domain score was 4.6 ± 1.6, the fatigue domain score was 4.3 ± 1.3, the emotional domain was 4.6 ± 1.2, and the mastery domain was 4.8 ± 1.4. The correlation coefficients of the association between the CAT score and the 4 domains of the CRQ-SAS for all of the centers combined was statistically significant. Conclusion: The CAT and CRQ-SAS revealed that the patients with COPD experienced a moderate to severe impact from the disease, and a considerably compromised quality of life in the GCC countries.Al Moamary Mohamed S, 2012, J Infect Public Health, V5, P159, DOI 10.1016-j.jiph.2012.01.002; Al Moamary MS, 2011, BMC PULM MED, V11, DOI 10.1186-1471-2466-11-21; Al Ghobain M, 2011, ANN SAUDI MED, V31, P129, DOI 10.4103-0256-4947.77485; Al-Haqwi AI, 2010, ANN THORAC MED, V5, P145, DOI 10.4103-1817-1737.65044; Al-Hazzaa HM, 2012, SAUDI MED J, V33, P459; Al-Moamary MS, 2011, SAUDI MED J, V32, P1028; Al-Moamary MS, 2008, SAUDI MED J, V29, P271; Al Moamary MS, 2010, MED PRIN PRACT, V19, P373, DOI 10.1159-000316376; Al Mutairi SS, 2006, RESPIROLOGY, V11, P449, DOI 10.1111-j.1400-1843.2006.00873.x; Al-Riyami AA, 2003, SAUDI MED J, V24, P875; Al-Turki YA, 2006, SAUDI MED J, V27, P700; [Anonymous], 1995, AM J RESP CRIT CARE, V152, P1107; Bednarek M, 2008, THORAX, V63, P402, DOI 10.1136-thx.2007.085456; Behbehani NN, 2004, SAUDI MED J, V25, P585; Bullinger M, 2003, ADV EXP MED BIOL, V528, P113; Chaouachi K, 2009, MED HYPOTHESES, V73, P623, DOI 10.1016-j.mehy.2009.06.016; De Civita M, 2005, PHARMACOECONOMICS, V23, P659, DOI 10.2165-00019053-200523070-00003; Gershon AS, 2010, ARCH INTERN MED, V170, P560, DOI 10.1001-archinternmed.2010.17; Global Initiative for Chronic Obstructive Lung Disease (GOLD), GLOB STRAT DIAGN MAN; Halbert RJ, 2006, EUR RESPIR J, V28, P523, DOI 10.1183-09031936.06.00124605; IBM Corp. Released, 2010, IBM SPSS STAT WIND V; Jones PW, 2011, EUR RESPIR J, V38, P29, DOI 10.1183-09031936.00177210; Jones PW, 2009, EUR RESPIR J, V34, P648, DOI 10.1183-09031936.00102509; Jordan RE, 2010, THORAX, V65, P492, DOI 10.1136-thx.2009.129395; Knishkowy B., 2005, PEDIATRICS, V116, P113; Mannino DM, 2007, LANCET, V370, P765, DOI 10.1016-S0140-6736(07)61380-4; Oh EG, 2009, INT J TUBERC LUNG D, V13, P580; Puhan MA, 2004, RESP MED, V98, P342, DOI 10.1016-j.rmed.2003.10.013; Raherison C, 2009, Eur Respir Rev, V18, P213, DOI 10.1183-09059180.00003609; Rodriguez-Roisin R, 2012, ARCH BRONCONEUMOL, V48, P286, DOI 10.1016-j.arbres.2012.02.018; Schunemann HJ, 2003, CHEST, V124, P1421, DOI 10.1378-chest.124.4.1421; Schunemann HJ, 2005, EUR RESPIR J, V25, P31, DOI 10.1183-09031936.04.00029704; Williams JEA, 2001, THORAX, V56, P954, DOI 10.1136-thorax.56.12.95433
Quality of life of patients with chronic obstructive pulmonary disease in the Gulf Cooperation Council countries
No full textObjective: To assess the health-related quality of life (HRQL) of patients with chronic obstructive pulmonary disease (COPD) in 4 Gulf Council Cooperation (GCC) countries. Methods: We conducted a cross-sectional survey between December 2011 and March 2012 in the following countries: Kingdom of Saudi Arabia (Riyadh, Dammam, and Jeddah), Kuwait, Bahrain, and the United Arab Emirates. The HRQL was measured using the COPD Assessment Test (CAT) and the Chronic Respiratory Disease Questionnaire-Self-Administered Standardized questionnaire (CRQ-SAS). Results: We recruited 120 patients from 6 centers in 4 countries. Their average forced expiratory volume (FEV)1 was 49.3percent (± 13.4) of predicted, and the ratio of FEV1 to forced vital capacity was 0.58 (± 0.11). The average COPD Assessment Test (CAT) score was 20.4 ± 7.6; CAT scores were highest for Riyadh (24.1 ± 7.7); and lowest for Kuwait (18.5 ± 9.2), with no significant difference between the centers. For the CRQ-SAS, the dyspnea domain score was 4.6 ± 1.6, the fatigue domain score was 4.3 ± 1.3, the emotional domain was 4.6 ± 1.2, and the mastery domain was 4.8 ± 1.4. The correlation coefficients of the association between the CAT score and the 4 domains of the CRQ-SAS for all of the centers combined was statistically significant. Conclusion: The CAT and CRQ-SAS revealed that the patients with COPD experienced a moderate to severe impact from the disease, and a considerably compromised quality of life in the GCC countries.Al Moamary Mohamed S, 2012, J Infect Public Health, V5, P159, DOI 10.1016-j.jiph.2012.01.002; Al Moamary MS, 2011, BMC PULM MED, V11, DOI 10.1186-1471-2466-11-21; Al Ghobain M, 2011, ANN SAUDI MED, V31, P129, DOI 10.4103-0256-4947.77485; Al-Haqwi AI, 2010, ANN THORAC MED, V5, P145, DOI 10.4103-1817-1737.65044; Al-Hazzaa HM, 2012, SAUDI MED J, V33, P459; Al-Moamary MS, 2011, SAUDI MED J, V32, P1028; Al-Moamary MS, 2008, SAUDI MED J, V29, P271; Al Moamary MS, 2010, MED PRIN PRACT, V19, P373, DOI 10.1159-000316376; Al Mutairi SS, 2006, RESPIROLOGY, V11, P449, DOI 10.1111-j.1400-1843.2006.00873.x; Al-Riyami AA, 2003, SAUDI MED J, V24, P875; Al-Turki YA, 2006, SAUDI MED J, V27, P700; [Anonymous], 1995, AM J RESP CRIT CARE, V152, P1107; Bednarek M, 2008, THORAX, V63, P402, DOI 10.1136-thx.2007.085456; Behbehani NN, 2004, SAUDI MED J, V25, P585; Bullinger M, 2003, ADV EXP MED BIOL, V528, P113; Chaouachi K, 2009, MED HYPOTHESES, V73, P623, DOI 10.1016-j.mehy.2009.06.016; De Civita M, 2005, PHARMACOECONOMICS, V23, P659, DOI 10.2165-00019053-200523070-00003; Gershon AS, 2010, ARCH INTERN MED, V170, P560, DOI 10.1001-archinternmed.2010.17; Global Initiative for Chronic Obstructive Lung Disease (GOLD), GLOB STRAT DIAGN MAN; Halbert RJ, 2006, EUR RESPIR J, V28, P523, DOI 10.1183-09031936.06.00124605; IBM Corp. Released, 2010, IBM SPSS STAT WIND V; Jones PW, 2011, EUR RESPIR J, V38, P29, DOI 10.1183-09031936.00177210; Jones PW, 2009, EUR RESPIR J, V34, P648, DOI 10.1183-09031936.00102509; Jordan RE, 2010, THORAX, V65, P492, DOI 10.1136-thx.2009.129395; Knishkowy B., 2005, PEDIATRICS, V116, P113; Mannino DM, 2007, LANCET, V370, P765, DOI 10.1016-S0140-6736(07)61380-4; Oh EG, 2009, INT J TUBERC LUNG D, V13, P580; Puhan MA, 2004, RESP MED, V98, P342, DOI 10.1016-j.rmed.2003.10.013; Raherison C, 2009, Eur Respir Rev, V18, P213, DOI 10.1183-09059180.00003609; Rodriguez-Roisin R, 2012, ARCH BRONCONEUMOL, V48, P286, DOI 10.1016-j.arbres.2012.02.018; Schunemann HJ, 2003, CHEST, V124, P1421, DOI 10.1378-chest.124.4.1421; Schunemann HJ, 2005, EUR RESPIR J, V25, P31, DOI 10.1183-09031936.04.00029704; Williams JEA, 2001, THORAX, V56, P954, DOI 10.1136-thorax.56.12.95433
SNPs in FNDC5 (irisin) are associated with obesity and modulation of glucose and lipid metabolism in Saudi subjects
No full textBackground: Irisin is a recently identified myokine that plays an important role in preventing obesity and insulin resistance. We investigated whether the common FNDC5 (irisin precursor) gene variants influence susceptibility to obesity and type 2 diabetes (T2D) and verified the impact of FNDC5 gene variants on serum irisin levels, glucose and lipid metabolism in a Saudi population. Methods: Genomic DNA from 814 (394 T2DM and 414 controls) subjects were genotyped for the five common SNPs (rs3480A/G, rs1746661G/T, rs1298190A/G, rs726344A/G and rs1570569G/T) of the FNDC5 gene using the TaqMan genotyping assay. Biochemical parameters and hematic concentrations of irisin and insulin as well as anthropometric indices were collected. Results: Serum irisin levels were higher in T2DM patients compared to controls (p < 0.0001). Analyses of FNDC5 SNPs showed that: 1) The rs3480 GG associates with decreased risk of obesity (p = 0.005; odds ratio: 0.48) and lower body mass index (BMI) values (p = 0.03). In addition, GGAAG was identified as the protective haplotype against risk of obesity (p = 0.001; odds ratio: 0.23). 2) The rs1746661 G allele associates with higher triglyceride (TG) levels (p = 0.019). 3) The rs157069 TT genotype associates with higher fasting insulin (p = 0.029) and HOMA-IR (p = 0.002) as well as with lower circulating irisin levels (p = 0.016). Conclusions: SNPs in FNDC5 gene correlates with obesity and glucose-lipid metabolism possibly because they modulate the serum levels of irisin
Low-energy standby-sparing for hard real-time systems
No full textTime-redundancy techniques are commonly used in real-time systems to achieve fault tolerance without incurring high energy overhead. However, reliability requirements of hard real-time systems that are used in safety-critical applications are so stringent that time-redundancy techniques are sometimes unable to achieve them. Standby sparing as a hardware redundancy technique can be used to meet high reliability requirements of safety-critical applications. However, conventional standby-sparing techniques are not suitable for low-energy hard real-time systems as they either impose considerable energy overheads or are not proper for hard timing constraints. In this paper we provide a technique to use standby sparing for hard real-time systems with limited energy budgets. The principal contribution of this work is an online energy management technique which is specifically developed for standby-sparing systems that are used in hard real-time applications. This technique operates at runtime and exploits dynamic slacks to reduce the energy consumption while guaranteeing hard deadlines. We compared the low-energy standby-sparing (LESS) system with a low-energy time redundancy system (from a previous work). The results show that for relaxed time constraints, the LESS system is more reliable and provides about 26% energy saving as compared to the time-redundancy system. For tight deadlines when the time redundancy system is not sufficiently reliable (for safety-critical application), the LESS system preserves its reliability but with about 49% more energy consumptio
Locality, culture and identity in late medieval Yorkshire, c.1270 - c.1540
No full textAvailable from British Library Document Supply Centre- DSC:DXN054480 / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
Computing the Moments of Order Statistics from Independent Nonidentically Distributed Exponentiated Frechet Variables
No full textThe moments of order statistics (o.s.) arising from independent nonidentically distributed (inid) three parameter Exponentiated Frechet (EF) random variables (r.v.'s.) were computed using a theorem of Barakat and Abdelkader (2003). Two methods of integration were used to find the moments. Graphical representation of the probability density function (p.d.f.) and the cumulative distribution function (c.d.f.) of the th o.s. arising from inid r.v.'s. from this distribution. Calculations of the mean of the largest o.s. from a sample of size 2 were given for both inid and independent identically distributed (iid) r.v.'s
The inhibitive action of Plukenetia conophora plant extract on the corrosion of Al–Zn–Cu alloy in different acidic media
No full textPlukenetia conophora (Nigerian Walnut) leaf extract was studied as a corrosion inhibitor on Al–Zn–Cu alloy in acidic (HCl and H2SO4) media using gravimetric, gasometric and electropotential techniques. The study showed that the inhibition efficiency (IE) increased as the concentration of the leaf extract increased and reached the peak (94.8%) at 0.8 g/L in 1 M HCl. In the two acidic media, P. conophora leaf extract exhibited good corrosion inhibition properties on the Al–Zn–Cu alloy samples due to adhesion of the extracts on the samples' surfaces. The adsorption process of the extract on the alloy sample surfaces was found to be spontaneous and perfectly obeyed the Langmuir isotherm model. Thus, P. conophora leaf extract is recommended for utilisation as a potential replacement for toxic inorganic inhibitors and for application in paint and coating industries
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