SHAFAA AL HADDAD - Academia.edu (original) (raw)
Papers by SHAFAA AL HADDAD
Background: Now a day people are more concerned about the nutrition and their health status. Form... more Background: Now a day people are more concerned about the nutrition and their health status. Form the last two decades a lot of progress has been seen to isolate substance of high nutrition and medicinal values from the daily consumable items. It is proved that these dietary supplements derived from plants and animals have benefits to the body or may supply the body with essential fatty acids, proteins or other nutrients which are helpful in improving body function. The especial food entities with such benefits are termed as nutraceuticals. Objective: This study aims to evaluate the use of nutraceuticals among the inhabitant of Penang, Malaysia. Furthermore, this study also aims to understand the population need for the nutraceutical use and difference in nutraceutical use among the inhabitants. Method: A cross sectional study conducted among the inhabitants of Penang using a structured twenty three item questionnaire. A non-probability sampling method was used to approach the potential participants. Chi Square test was used to test the difference between proportions. However, in the case where 2x2 tables have expected cell count less than five among 25% of the cells then Fischer exact test was preferred over Chi Square. Results: A total of seven hundred respondents were approached for their participation in this study. Of whom four hundred showed their willingness to participate in the study with a response rate of 57.1%. Majority 218 (54.5%) of the respondents were female. Findings demonstrated that 267(66.8%) of the respondents were familiar with the use of nutraceuticals and 282 (70.5%) have used or using nutraceuticals. Most of the respondents 294 (73.6%) believe that nutraceuticals are safe to use. While evaluating respondents perceptions toward the use of nutraceutical, the use of nutraceuticals to cure the medical complications was found statistically significant (x 2 = 21.196, df=3, p= 0.000). In addition to this other disclosed the nutraceutical use to improve the body function [i.e overall organs performance], to improve the mental performance and to reduce weight. Conclusion: Malaysian population was found familiar with the nutraceuticals and nearly all participants of this study have reported their use. The use of nutraceuticals was higher among Chinese women in comparison to other ethnic groups' i.e Malay and Indians. In general it was found that majority believe that nutraceuticals are safe to use, for general well being. Women were more likely to use nutraceuticals for sliming purpose, while men reported to improve the body function.
Epithelial sheets, a synapomorphy of all metazoans but porifers, are present as two layers in cni... more Epithelial sheets, a synapomorphy of all metazoans but porifers, are present as two layers in cnidarians, ectoderm and endoderm, joined at their basal side by an extra-cellular matrix named mesoglea. In the Hydra polyp, epithelial cells of the body column are unipotent stem cells that continuously self-renew and concomitantly express their epitheliomuscular features. These multifunctional contractile cells maintain homeostasis by providing a protective physical barrier, by digesting nutrients, by selecting a stable microbiota, and by rapidly closing wounds. In addition, epithelial cells are highly plastic, supporting the adaptation of Hydra to physiological and environmental changes, such as long starvation periods where survival relies on a highly dynamic autophagy flux. Epithelial cells also play key roles in developmental processes as evidenced by the organizer activity they develop to promote budding and regeneration. We propose here an integrative view of the homeostatic and de...
Ear, nose, & throat journal, 1991
Before the advent of safe and readily-available intubation anesthesia, most endoscopic procedures... more Before the advent of safe and readily-available intubation anesthesia, most endoscopic procedures were carried out under topical or local anesthesia. Reawakening interest in cost effectiveness in medical practice and improved safety suggests that these techniques should be reexamined. The authors' experience in nearly 2,000 topical anesthetics for peroral endoscopy is reviewed. A preferred technique is presented which has proven effective and has resulted in an overall complication rate of less than 1%.
194 Background: With the introduction of PSA testing, the problem of over-treatment emerged in pr... more 194 Background: With the introduction of PSA testing, the problem of over-treatment emerged in prostate cancer. Only a small subset of prostate cancer patients will require more intensive adjuvant therapy. There is currently no biomarker that can predict disease aggressiveness at the time of surgery. Methods: We analyzed miRNA expression in 41 patients (the discovery set) which were dichotomized into; 'high risk'- experienced biochemical failure within 24 months after radical prostatectomy (n=26) and 'low risk' who did not have biochemical failure for at least 35 months (n=15). The validation set consisted of 72 cases. Total RNA was isolated from FFPE cores. cDNA was prepared for each patients and expression miRNA expression was screened by qRT-PCR –based panel. miRNAs were ranked by non-parametric tests. Linear regression models were built to predict biochemical failure. We used TargetScan for miRNA target prediction. Targets were validated by transient transfection of synthetic miRNA precursors followed by qRT-PCR quantification of the targets. Proliferation was assessed by measuring cell viability. Results: We compared the expression of 754 mature human miRNAs in patients with ‘high’ or ‘low’ risk for biochemical failure. We identified 24 miRNAs that were differentially expressed between the risk groups. We developed three logistic regression models, based on the expression of 2-3 miRNAs (PPV=100% and NPV ranges 86.4-100%). We confirmed the differential expression on the study set and on a larger, independent set of PCa pateints. We also validated one model on an independent set of patients. Further, we show that transfection of miR-152 and miR-331-3p, featured in the logistic regression models, altered proliferation of PCa3 and DU145 cells. Target prediction indicated Erbb3 and Erbb2 as potential direct targets and their mRNA expression significantly reduced when miR-152 and miR-331-3p were overexpressed. Conclusions: Altered miR-331-3p and miR-152 expression represent a potential tool for assessing the risk of early biochemical failure. These miRNAs may act through the Erbb family to induce an alternative way of AR activation.
ABSTRACT We report, for the first time, a case of esophageal pneumatosis in association with Sarc... more ABSTRACT We report, for the first time, a case of esophageal pneumatosis in association with Sarcina organisms. Sarcina are Gram positive anaerobic cocci with a distinctive morphology consisting of packets of 4 to 8 organisms, resulting in a characteristic “tetrad” appearance which permits identification in tissues on routine section. Sarcina spp. were originally described more than 150 years ago by Goodsir, and postulated to be associated with frothy vomiting and indigestion in humans. It has been identified in air and soil, and has been isolated in feces from healthy humans.This article is protected by copyright. All rights reserved.
The Hippo/Mst pathway is a signaling cascade that controls organ growth and regeneration. Hydra i... more The Hippo/Mst pathway is a signaling cascade that controls organ growth and regeneration. Hydra is a cnidarian freshwater polyp characterized by an amazing regenerative capacity, leading to the re-development of any missing body part. Components of the Hippo/Mst pathway are highly conserved in Hydra. In this study, we show that the Mst, LATS and 14-3-3 proteins are strongly expressed in fast cycling cells, i.e. pairs of interstitial stem cells and clusters of nematoblasts. We also show that the Hydra transcriptional coactivator YAP (hyYAP) can sense cell density. Indeed GFP-hyYAP expressed in human U2OS cells is cytoplasmic in high density cells but nuclear in those maintained at low density. Moreover Hydra Yap can rescue the human Yap function in U2OS cells, by up-regulating Cyclin-E, a target gene of the Yap/Tef complex. These results suggest that the human and Hydra Hippo/Mst pathways similarly control cell proliferation in response to cell density.
Proceedings of SPE Production Operations Symposium, 1997
Permeability and skin factor can be misestimated from well testing data taken after completing we... more Permeability and skin factor can be misestimated from well testing data taken after completing wells in layered reservoirs. Results presented in this paper are based on field data and numerical simulation work on two wells in an offshore Louisiana field. Testing results taken after completing the first well in the field with a gravel pack, gave considerably lower than expected permeability results that could have jeopardized the future development of the field. Well performance analysis based on pre-gravel pack flow, as well as investigation of existing well log data, indicated the possibility of a layer of higher permeability within the tested interval. In consideration of this analysis, a decision was made to proceed with the drilling of a second well in the field and perform a pre-gravel pack test to obtain original reservoir data. Then, the completion design for the second well and the treatment strategy for the first well would be based on the proposed pre-gravel pack test results of the second well. The pre-completion impulse testing of the second well, drilled to the same reservoir, gave a higher calculated permeability than the first well, confirming our expectation. A new completion design was proposed and implemented on the second well. Post-completion transient testing indicated that the second well completion maintained communication with the higher permeability layer allowing the evaluation of the well completion skin. The new reservoir permeability then used in reservoir simulation resulted in a more reliable field production performance prediction and evaluation. Well log data, well test data, completion design, and reservoir simulation results are presented in this paper. Introduction Poorly consolidated sandstone intervals are usually gravel packed to control sand movement into the wellbore when the well is on production. As it is known to negatively impact formation productivity at the wellbore damage should be minimized during both drilling and completion operations. This damage can usually be estimated from well test interpretation and is referred to as a skin value. However, in a multi-permeability layered reservoir, the amount of formation damage in each layer will be proportional to it's permeability. During well testing, this may result in significantly lowering the contribution of the highly damaged zone, and hence cause a misestimation of the effective permeability and skin. A basic description of transient flow models in homogenous, and layered reservoirs is presented in the next paragraphs. Description of transient flow regimes in different reservoir models has been presented by several authors. The system of equations governing transient flow of fluid in homogeneous porous medium is; (1) (2) (3) (4) The semilog analysis solution to this problem using the Boltzmann transform approach is; (5) P. 231^
Proceedings of SPE Annual Technical Conference and Exhibition, 1997
Proceedings of SPE Gas Technology Symposium, 1998
Traditionally, formations with permeabilities greater than 100 md are not considered as candidate... more Traditionally, formations with permeabilities greater than 100 md are not considered as candidates for hydraulic fracturing stimulation. This perception is based on the idea that the increased effective wellbore radius is not needed in high permeability formations. This paper proposes that, if properly designed and performed, hydraulic fracturing benefits extend beyond the increased effective wellbore radius. These benefits include; extending the wellbore beyond the drilling damaged zone eliminating the need for further stimulation, increased productivity in wells limited by drawdown, and increased productivity with a higher flowing bottom-hole pressure which hinders water encroachment in edge water drive systems. This work is based on field data and computer simulations from the Gulf of Mexico area. These high permeability wells were hydraulically fractured and gravel packed using the FracPac system. Fracture design and operational implementation strategy, including post completion flow rate and period, will be presented in this paper. Moreover, NODALTM analysis, well test, and production data will be presented. Well test and production data have shown that hydraulic fractures associated with the sand control system, have significantly impacted wells' performance and achieved the desired objectives. P. 321
Proceedings of Low Permeability Reservoirs Symposium, 1991
Proceedings of SPE Gas Technology Symposium, 1998
Annals of the New York Academy of Sciences, 2014
The following, from the 12th OESO World Conference: Cancers of the Esophagus, includes commentari... more The following, from the 12th OESO World Conference: Cancers of the Esophagus, includes commentaries on infection and cancer, and includes commentaries on the influence of bacterial infections on mucin expression and cancer risk; the role of esophageal bacterial biota in the incidence of esophageal disease; the association between human papilloma virus (HPV) and esophageal squamous cell carcinoma; the role of HPV in esophageal adenocarcinoma; the role of Helicobacter pylori in cardiac carcinoma; and the role of Epstein-Barr virus infection in esophageal cancer.
This study aims to examine general public knowledge and behavior toward pharmaceutical advertisem... more This study aims to examine general public knowledge and behavior toward pharmaceutical advertisements in the Western part of KSA. A cross sectional convenience sampling technique was used in this study. A total of 1445 valid questionnaires were received and analyzed using SPSS version 16 at alpha value of 0.05. Majority of respondents were aware of different types of drugs to be advertised and drug advertisements should seek approval from the health authorities. Television and Internet showed the highest effect on consumers. Almost half of the participants preferred an advertised drug over non-advertised one. Most of the respondents indicated that the quality of frequently advertised drugs is not better than those prescribed by the doctors. Majority of participants had positive beliefs toward advertised drugs concerning their role in education and spreading of awareness among the public. Pharmaceutical advertisements harm the doctor-patient relationship as evidenced by one-third of the investigated sample. Moreover, majority of the participants mentioned that they would consult another doctor or even change the current doctor if he/she refused to prescribe an advertised medication. Results of this study could be used to develop awareness programs for the general public and try to enforce the regulations and policies to protect the general public and patients from the business oriented pharmaceutical companies and drug suppliers.
Gut, 2005
Wireless pH monitoring is a significant advance for intraluminal pH recording. It will provide mo... more Wireless pH monitoring is a significant advance for intraluminal pH recording. It will provide more meaningful data for evaluation of patients and, hopefully, more discriminative diagnosis
SPE Middle East Oil …, 2011
... and N. Al-Ajmi, [2006] Sequence stratigraphy and reservoir architecture of the Burgan andMaud... more ... and N. Al-Ajmi, [2006] Sequence stratigraphy and reservoir architecture of the Burgan andMauddud formations (Lower Cretaceous), Kuwait, in PM Harris and LJ Weber, eds., Giant hydrocarbon reservoirs of the world: From rocks to reservoir characterization and modeling. ...
Clinical Chemistry, 2013
PURPOSE Prostate-specific antigen testing has led to overtreatment of prostate cancer (PCa). Only... more PURPOSE Prostate-specific antigen testing has led to overtreatment of prostate cancer (PCa). Only a small subset of PCa patients will have an aggressive disease that requires intensive therapy, and there is currently no biomarker to predict disease aggressiveness at the time of surgery. MicroRNAs (miRNAs) are reported to be involved in PCa pathogenesis. METHODS This study involved 105 participants. For the discovery phase, prostatectomy samples were dichotomized to high-risk (n = 27, biochemical failure <36 months after prostatectomy) and low-risk groups (n = 14, ≥36 months without biochemical failure). Expression of 754 mature miRNAs was compared between the 2 groups. Linear regression models were built to accurately predict biochemical failure risk. miRNA mimics were transfected into PCa model cell lines to test effects on proliferation and to deduce responding signaling pathways. RESULTS We identified 25 differentially expressed miRNAs between the biochemical failure risk grou...
Science of the total environment, 1994
The distribution of trihalomethanes in the water of the two main power stations and the 10 blendi... more The distribution of trihalomethanes in the water of the two main power stations and the 10 blending stations in Bahrain has been studied. Total trihalomethanes in the drinking water averaged 2.95/.~g/i. Average concentrations (/zg/l) of individual compounds were: CnBr3, 2.17 + 0.3; CHBr2C1 , 0.48 + 0.14; CHBrCI2, 0.30 + 0.13.
Chemical engineering …, 2003
A four-dimensional model for the anaerobic fermentation process, developed and used earlier to si... more A four-dimensional model for the anaerobic fermentation process, developed and used earlier to simulate the oscillatory behavior of an experimental continuous stirred tank fermentor is utilized in the present investigation to explore the static/dynamic bifurcation ...
Engineering Sciences, 1998
... 1998 AD) Effect of Non-Standard Curing and Consolidation on Strength of RC Beams Mohammad S. ... more ... 1998 AD) Effect of Non-Standard Curing and Consolidation on Strength of RC Beams Mohammad S. Al-Haddad, Abdulrahim M. Arafah ... Test of Standard Cylinders) Compressive strength tests on standard cylinders (150 x 300 mm) comprised three subgroups (CS, CC and CN ...
Soviet Atomic Energy, 1978
Background: Now a day people are more concerned about the nutrition and their health status. Form... more Background: Now a day people are more concerned about the nutrition and their health status. Form the last two decades a lot of progress has been seen to isolate substance of high nutrition and medicinal values from the daily consumable items. It is proved that these dietary supplements derived from plants and animals have benefits to the body or may supply the body with essential fatty acids, proteins or other nutrients which are helpful in improving body function. The especial food entities with such benefits are termed as nutraceuticals. Objective: This study aims to evaluate the use of nutraceuticals among the inhabitant of Penang, Malaysia. Furthermore, this study also aims to understand the population need for the nutraceutical use and difference in nutraceutical use among the inhabitants. Method: A cross sectional study conducted among the inhabitants of Penang using a structured twenty three item questionnaire. A non-probability sampling method was used to approach the potential participants. Chi Square test was used to test the difference between proportions. However, in the case where 2x2 tables have expected cell count less than five among 25% of the cells then Fischer exact test was preferred over Chi Square. Results: A total of seven hundred respondents were approached for their participation in this study. Of whom four hundred showed their willingness to participate in the study with a response rate of 57.1%. Majority 218 (54.5%) of the respondents were female. Findings demonstrated that 267(66.8%) of the respondents were familiar with the use of nutraceuticals and 282 (70.5%) have used or using nutraceuticals. Most of the respondents 294 (73.6%) believe that nutraceuticals are safe to use. While evaluating respondents perceptions toward the use of nutraceutical, the use of nutraceuticals to cure the medical complications was found statistically significant (x 2 = 21.196, df=3, p= 0.000). In addition to this other disclosed the nutraceutical use to improve the body function [i.e overall organs performance], to improve the mental performance and to reduce weight. Conclusion: Malaysian population was found familiar with the nutraceuticals and nearly all participants of this study have reported their use. The use of nutraceuticals was higher among Chinese women in comparison to other ethnic groups' i.e Malay and Indians. In general it was found that majority believe that nutraceuticals are safe to use, for general well being. Women were more likely to use nutraceuticals for sliming purpose, while men reported to improve the body function.
Epithelial sheets, a synapomorphy of all metazoans but porifers, are present as two layers in cni... more Epithelial sheets, a synapomorphy of all metazoans but porifers, are present as two layers in cnidarians, ectoderm and endoderm, joined at their basal side by an extra-cellular matrix named mesoglea. In the Hydra polyp, epithelial cells of the body column are unipotent stem cells that continuously self-renew and concomitantly express their epitheliomuscular features. These multifunctional contractile cells maintain homeostasis by providing a protective physical barrier, by digesting nutrients, by selecting a stable microbiota, and by rapidly closing wounds. In addition, epithelial cells are highly plastic, supporting the adaptation of Hydra to physiological and environmental changes, such as long starvation periods where survival relies on a highly dynamic autophagy flux. Epithelial cells also play key roles in developmental processes as evidenced by the organizer activity they develop to promote budding and regeneration. We propose here an integrative view of the homeostatic and de...
Ear, nose, & throat journal, 1991
Before the advent of safe and readily-available intubation anesthesia, most endoscopic procedures... more Before the advent of safe and readily-available intubation anesthesia, most endoscopic procedures were carried out under topical or local anesthesia. Reawakening interest in cost effectiveness in medical practice and improved safety suggests that these techniques should be reexamined. The authors' experience in nearly 2,000 topical anesthetics for peroral endoscopy is reviewed. A preferred technique is presented which has proven effective and has resulted in an overall complication rate of less than 1%.
194 Background: With the introduction of PSA testing, the problem of over-treatment emerged in pr... more 194 Background: With the introduction of PSA testing, the problem of over-treatment emerged in prostate cancer. Only a small subset of prostate cancer patients will require more intensive adjuvant therapy. There is currently no biomarker that can predict disease aggressiveness at the time of surgery. Methods: We analyzed miRNA expression in 41 patients (the discovery set) which were dichotomized into; 'high risk'- experienced biochemical failure within 24 months after radical prostatectomy (n=26) and 'low risk' who did not have biochemical failure for at least 35 months (n=15). The validation set consisted of 72 cases. Total RNA was isolated from FFPE cores. cDNA was prepared for each patients and expression miRNA expression was screened by qRT-PCR –based panel. miRNAs were ranked by non-parametric tests. Linear regression models were built to predict biochemical failure. We used TargetScan for miRNA target prediction. Targets were validated by transient transfection of synthetic miRNA precursors followed by qRT-PCR quantification of the targets. Proliferation was assessed by measuring cell viability. Results: We compared the expression of 754 mature human miRNAs in patients with ‘high’ or ‘low’ risk for biochemical failure. We identified 24 miRNAs that were differentially expressed between the risk groups. We developed three logistic regression models, based on the expression of 2-3 miRNAs (PPV=100% and NPV ranges 86.4-100%). We confirmed the differential expression on the study set and on a larger, independent set of PCa pateints. We also validated one model on an independent set of patients. Further, we show that transfection of miR-152 and miR-331-3p, featured in the logistic regression models, altered proliferation of PCa3 and DU145 cells. Target prediction indicated Erbb3 and Erbb2 as potential direct targets and their mRNA expression significantly reduced when miR-152 and miR-331-3p were overexpressed. Conclusions: Altered miR-331-3p and miR-152 expression represent a potential tool for assessing the risk of early biochemical failure. These miRNAs may act through the Erbb family to induce an alternative way of AR activation.
ABSTRACT We report, for the first time, a case of esophageal pneumatosis in association with Sarc... more ABSTRACT We report, for the first time, a case of esophageal pneumatosis in association with Sarcina organisms. Sarcina are Gram positive anaerobic cocci with a distinctive morphology consisting of packets of 4 to 8 organisms, resulting in a characteristic “tetrad” appearance which permits identification in tissues on routine section. Sarcina spp. were originally described more than 150 years ago by Goodsir, and postulated to be associated with frothy vomiting and indigestion in humans. It has been identified in air and soil, and has been isolated in feces from healthy humans.This article is protected by copyright. All rights reserved.
The Hippo/Mst pathway is a signaling cascade that controls organ growth and regeneration. Hydra i... more The Hippo/Mst pathway is a signaling cascade that controls organ growth and regeneration. Hydra is a cnidarian freshwater polyp characterized by an amazing regenerative capacity, leading to the re-development of any missing body part. Components of the Hippo/Mst pathway are highly conserved in Hydra. In this study, we show that the Mst, LATS and 14-3-3 proteins are strongly expressed in fast cycling cells, i.e. pairs of interstitial stem cells and clusters of nematoblasts. We also show that the Hydra transcriptional coactivator YAP (hyYAP) can sense cell density. Indeed GFP-hyYAP expressed in human U2OS cells is cytoplasmic in high density cells but nuclear in those maintained at low density. Moreover Hydra Yap can rescue the human Yap function in U2OS cells, by up-regulating Cyclin-E, a target gene of the Yap/Tef complex. These results suggest that the human and Hydra Hippo/Mst pathways similarly control cell proliferation in response to cell density.
Proceedings of SPE Production Operations Symposium, 1997
Permeability and skin factor can be misestimated from well testing data taken after completing we... more Permeability and skin factor can be misestimated from well testing data taken after completing wells in layered reservoirs. Results presented in this paper are based on field data and numerical simulation work on two wells in an offshore Louisiana field. Testing results taken after completing the first well in the field with a gravel pack, gave considerably lower than expected permeability results that could have jeopardized the future development of the field. Well performance analysis based on pre-gravel pack flow, as well as investigation of existing well log data, indicated the possibility of a layer of higher permeability within the tested interval. In consideration of this analysis, a decision was made to proceed with the drilling of a second well in the field and perform a pre-gravel pack test to obtain original reservoir data. Then, the completion design for the second well and the treatment strategy for the first well would be based on the proposed pre-gravel pack test results of the second well. The pre-completion impulse testing of the second well, drilled to the same reservoir, gave a higher calculated permeability than the first well, confirming our expectation. A new completion design was proposed and implemented on the second well. Post-completion transient testing indicated that the second well completion maintained communication with the higher permeability layer allowing the evaluation of the well completion skin. The new reservoir permeability then used in reservoir simulation resulted in a more reliable field production performance prediction and evaluation. Well log data, well test data, completion design, and reservoir simulation results are presented in this paper. Introduction Poorly consolidated sandstone intervals are usually gravel packed to control sand movement into the wellbore when the well is on production. As it is known to negatively impact formation productivity at the wellbore damage should be minimized during both drilling and completion operations. This damage can usually be estimated from well test interpretation and is referred to as a skin value. However, in a multi-permeability layered reservoir, the amount of formation damage in each layer will be proportional to it's permeability. During well testing, this may result in significantly lowering the contribution of the highly damaged zone, and hence cause a misestimation of the effective permeability and skin. A basic description of transient flow models in homogenous, and layered reservoirs is presented in the next paragraphs. Description of transient flow regimes in different reservoir models has been presented by several authors. The system of equations governing transient flow of fluid in homogeneous porous medium is; (1) (2) (3) (4) The semilog analysis solution to this problem using the Boltzmann transform approach is; (5) P. 231^
Proceedings of SPE Annual Technical Conference and Exhibition, 1997
Proceedings of SPE Gas Technology Symposium, 1998
Traditionally, formations with permeabilities greater than 100 md are not considered as candidate... more Traditionally, formations with permeabilities greater than 100 md are not considered as candidates for hydraulic fracturing stimulation. This perception is based on the idea that the increased effective wellbore radius is not needed in high permeability formations. This paper proposes that, if properly designed and performed, hydraulic fracturing benefits extend beyond the increased effective wellbore radius. These benefits include; extending the wellbore beyond the drilling damaged zone eliminating the need for further stimulation, increased productivity in wells limited by drawdown, and increased productivity with a higher flowing bottom-hole pressure which hinders water encroachment in edge water drive systems. This work is based on field data and computer simulations from the Gulf of Mexico area. These high permeability wells were hydraulically fractured and gravel packed using the FracPac system. Fracture design and operational implementation strategy, including post completion flow rate and period, will be presented in this paper. Moreover, NODALTM analysis, well test, and production data will be presented. Well test and production data have shown that hydraulic fractures associated with the sand control system, have significantly impacted wells' performance and achieved the desired objectives. P. 321
Proceedings of Low Permeability Reservoirs Symposium, 1991
Proceedings of SPE Gas Technology Symposium, 1998
Annals of the New York Academy of Sciences, 2014
The following, from the 12th OESO World Conference: Cancers of the Esophagus, includes commentari... more The following, from the 12th OESO World Conference: Cancers of the Esophagus, includes commentaries on infection and cancer, and includes commentaries on the influence of bacterial infections on mucin expression and cancer risk; the role of esophageal bacterial biota in the incidence of esophageal disease; the association between human papilloma virus (HPV) and esophageal squamous cell carcinoma; the role of HPV in esophageal adenocarcinoma; the role of Helicobacter pylori in cardiac carcinoma; and the role of Epstein-Barr virus infection in esophageal cancer.
This study aims to examine general public knowledge and behavior toward pharmaceutical advertisem... more This study aims to examine general public knowledge and behavior toward pharmaceutical advertisements in the Western part of KSA. A cross sectional convenience sampling technique was used in this study. A total of 1445 valid questionnaires were received and analyzed using SPSS version 16 at alpha value of 0.05. Majority of respondents were aware of different types of drugs to be advertised and drug advertisements should seek approval from the health authorities. Television and Internet showed the highest effect on consumers. Almost half of the participants preferred an advertised drug over non-advertised one. Most of the respondents indicated that the quality of frequently advertised drugs is not better than those prescribed by the doctors. Majority of participants had positive beliefs toward advertised drugs concerning their role in education and spreading of awareness among the public. Pharmaceutical advertisements harm the doctor-patient relationship as evidenced by one-third of the investigated sample. Moreover, majority of the participants mentioned that they would consult another doctor or even change the current doctor if he/she refused to prescribe an advertised medication. Results of this study could be used to develop awareness programs for the general public and try to enforce the regulations and policies to protect the general public and patients from the business oriented pharmaceutical companies and drug suppliers.
Gut, 2005
Wireless pH monitoring is a significant advance for intraluminal pH recording. It will provide mo... more Wireless pH monitoring is a significant advance for intraluminal pH recording. It will provide more meaningful data for evaluation of patients and, hopefully, more discriminative diagnosis
SPE Middle East Oil …, 2011
... and N. Al-Ajmi, [2006] Sequence stratigraphy and reservoir architecture of the Burgan andMaud... more ... and N. Al-Ajmi, [2006] Sequence stratigraphy and reservoir architecture of the Burgan andMauddud formations (Lower Cretaceous), Kuwait, in PM Harris and LJ Weber, eds., Giant hydrocarbon reservoirs of the world: From rocks to reservoir characterization and modeling. ...
Clinical Chemistry, 2013
PURPOSE Prostate-specific antigen testing has led to overtreatment of prostate cancer (PCa). Only... more PURPOSE Prostate-specific antigen testing has led to overtreatment of prostate cancer (PCa). Only a small subset of PCa patients will have an aggressive disease that requires intensive therapy, and there is currently no biomarker to predict disease aggressiveness at the time of surgery. MicroRNAs (miRNAs) are reported to be involved in PCa pathogenesis. METHODS This study involved 105 participants. For the discovery phase, prostatectomy samples were dichotomized to high-risk (n = 27, biochemical failure <36 months after prostatectomy) and low-risk groups (n = 14, ≥36 months without biochemical failure). Expression of 754 mature miRNAs was compared between the 2 groups. Linear regression models were built to accurately predict biochemical failure risk. miRNA mimics were transfected into PCa model cell lines to test effects on proliferation and to deduce responding signaling pathways. RESULTS We identified 25 differentially expressed miRNAs between the biochemical failure risk grou...
Science of the total environment, 1994
The distribution of trihalomethanes in the water of the two main power stations and the 10 blendi... more The distribution of trihalomethanes in the water of the two main power stations and the 10 blending stations in Bahrain has been studied. Total trihalomethanes in the drinking water averaged 2.95/.~g/i. Average concentrations (/zg/l) of individual compounds were: CnBr3, 2.17 + 0.3; CHBr2C1 , 0.48 + 0.14; CHBrCI2, 0.30 + 0.13.
Chemical engineering …, 2003
A four-dimensional model for the anaerobic fermentation process, developed and used earlier to si... more A four-dimensional model for the anaerobic fermentation process, developed and used earlier to simulate the oscillatory behavior of an experimental continuous stirred tank fermentor is utilized in the present investigation to explore the static/dynamic bifurcation ...
Engineering Sciences, 1998
... 1998 AD) Effect of Non-Standard Curing and Consolidation on Strength of RC Beams Mohammad S. ... more ... 1998 AD) Effect of Non-Standard Curing and Consolidation on Strength of RC Beams Mohammad S. Al-Haddad, Abdulrahim M. Arafah ... Test of Standard Cylinders) Compressive strength tests on standard cylinders (150 x 300 mm) comprised three subgroups (CS, CC and CN ...
Soviet Atomic Energy, 1978