151
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Latus H, Gummel K, Hachmann P, Khalil M, Yerebakan C, Bauer J, Schranz D, Apitz C. Impact of residual right ventricular outflow tract obstruction on biventricular strain and synchrony in patients after repair of tetralogy of Fallot: a cardiac magnetic resonance feature tracking study. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1394034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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152
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Khalil M, Recla S, Steinbrenner B, Moysich A, Kerst G, Latus H, Gummel K, Schmidt D, Apitz C, Bauer J, Thul J, Valeske K, Akintürk H, Schranz D. Reversible Pulmonary Artery Banding for Left Ventricular-DCM with preserved RV function: feasibility of percutaneous PA-debanding. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1393987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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153
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Latus H, Karanatsios G, Basan U, Khalil M, Moysich A, Kreuder J, Schranz D, Apitz C. Prognostic impact of Endothelin-1 and big Endothelin-1 expression in children with abnormal pulmonary hemodynamics. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1394025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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154
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Emmel M, Khalil M, Udink ten Cate F, Brockmeier K, Sreeram N. Comparison of Cryo- vs. Radio-Frequency-Current-Ablation in Patients with AV-Nodal-Reentry-Tachycardia. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1394073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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155
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Moysich A, Kerst G, Latus H, Apitz C, Khalil M, Schranz D. Stentimplantation in das intraatriale Septum nach Hybrid-Prozedur bei Hypoplastischem Linksherz mit selbstexpandierenden Ductus-Stents - 12 Monate Erfahrung. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1394082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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156
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Zafar H, Khalil M, Ahmed F. EHMTI-0090. Botox in the prevention of chronic migraine; comparing NICE criteria versus hull criteria for evaluating responder rate. J Headache Pain 2014. [PMCID: PMC4181874 DOI: 10.1186/1129-2377-15-s1-g2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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157
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158
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Abstract
In this paper, a fractional-order model which describes the human immunodeficiency type-1 virus (HIV-1) infection is presented. Numerical solutions are obtained using a generalized Euler method (GEM) to handle the fractional derivatives. The fractional derivatives are described in the Caputo sense. We show that the model established in this paper possesses non-negative solutions. Comparisons between the results of the fractional-order model, the results of the integer model and the measured real data obtained from 10 patients during primary HIV-1 infection are presented. These comparisons show that the results of the fractional-order model give predictions to the plasma virus load of the patients better than those of the integer model.
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Affiliation(s)
- A. A. M. Arafa
- Department of Mathematics and Computer Science, Faculty of Sciences, Port Said University, Port Said, Egypt
| | - S. Z. Rida
- Department of Mathematics, Faculty of Sciences, South Valley University, Qena, Egypt
| | - M. Khalil
- Department of Mathematics, Faculty of Engineering, October University for Modern Sciences and Arts (MSA University), 6th Oct. City, Giza, Egypt
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Yassen K, Hasanin A, Allah AS, Sayed E, Afifi M, Khalil M. Impact of intra and postoperative Terlipressin infusion in patients undergoing living donor liver transplantation. Eur J Anaesthesiol 2014; 31:144. [DOI: 10.1097/00003643-201406001-00408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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160
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Khalil M, Khalil I. P1016: Electrophysiological study of distal axonopathic, proximal demylinating polyneuropathy in a case of Addison’s disease only recieved steroid therapy for 30 years. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)51055-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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161
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Khan H, Maheen S, Alamgeer GA, Mahmood A, Sarfraz RM, Ashraf Z, Khalil M, Malik MNH. Determinants of Increasing Trend of Self-Medication in a Pakistani Community. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i3.19] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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162
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Khalil M, Riedlbauer B, Langkammer C, Enzinger C, Ropele S, Stojakovic T, Scharnagl H, Culea V, Petzold A, Teunissen C, Archelos JJ, Fuchs S, Fazekas F. Cerebrospinal fluid transferrin levels are reduced in patients with early multiple sclerosis. Mult Scler 2014; 20:1569-77. [PMID: 24777275 DOI: 10.1177/1352458514530020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Previous magnetic resonance imaging (MRI) studies have demonstrated increased iron deposition in the basal ganglia of multiple sclerosis (MS) patients. However, it is not clear whether these alterations are associated with changes of iron metabolism in body fluids. OBJECTIVES The purpose of this study was to investigate if iron metabolism markers in cerebrospinal fluid (CSF) and serum of clinically isolated syndrome (CIS) and MS patients differ from controls and how they relate to clinical and imaging parameters. METHODS We analysed serum ferritin, transferrin and soluble transferrin-receptor and CSF ferritin and transferrin by nephelometry in non-anaemic CIS (n=60) or early MS (n=14) patients and 68 controls. In CIS/MS we additionally assessed the T2 lesion load. RESULTS CSF transferrin was significantly decreased in CIS/MS compared to controls (p<0.001), while no significant differences were seen in serum. Higher CSF transferrin levels correlated with lower physical disability scores (r= -0.3, p<0.05). CSF transferrin levels did not correlate with other clinical data and the T2 lesion load. CONCLUSION Our biochemical study provides evidence that altered iron homeostasis within the brain occurs in the very early phases of the disease, and suggests that the transporter protein transferrin may play a role in the increased iron deposition known to occur in the brain of MS patients.
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Affiliation(s)
- M Khalil
- Medical University of Graz, Auenbruggerplatz 22, A-8036 Graz, Austria
| | | | | | | | - S Ropele
- Medical University of Graz, Austria
| | - T Stojakovic
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Austria
| | - H Scharnagl
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Austria
| | - V Culea
- Medical University of Graz, Austria
| | - A Petzold
- MS Center Amsterdam, Free University Medical Center, The Netherlands
| | - Ce Teunissen
- Neurochemistry Lab and Biobank, VU University Medical Center Amsterdam, The Netherlands
| | | | - S Fuchs
- Medical University of Graz, Austria
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163
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Khalil M, Wagih K, Mahmoud O. Evaluation of maximum inspiratory and expiratory pressure in patients with chronic obstructive pulmonary disease. Egyptian Journal of Chest Diseases and Tuberculosis 2014. [DOI: 10.1016/j.ejcdt.2014.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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164
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Lemoine M, Shimakawa Y, Njie R, Njai HF, Nayagam S, Khalil M, Goldin R, Ingiliz P, Taal M, Nyan O, Corrah T, D'Alessandro U, Thursz M. Food intake increases liver stiffness measurements and hampers reliable values in patients with chronic hepatitis B and healthy controls: the PROLIFICA experience in The Gambia. Aliment Pharmacol Ther 2014; 39:188-96. [PMID: 24308698 DOI: 10.1111/apt.12561] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/02/2013] [Accepted: 11/03/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND By increasing the hepatic blood circulation, food intake has been suggested to increase liver stiffness measurement (LSM) values in HCV-infected patients. AIM To investigate prospectively the effects of food intake on LSM in hepatitis B virus (HBV)-infected patients and healthy controls. METHODS In The Gambia, patients included in the PROLIFICA project are screened for HBV at the community level and then invited for fasting assessment including LSM. Between April 2012 and October 2012, each day, the first five participants were invited to participate in this study. After the initial examination, a standardised 850 Kcal breakfast was provided. Effect of food intake was assessed by examining mean difference of LSM, IQR and IQR/LSM at T0 (fasting LSM1), T30min (LSM2) and T120min (LSM3) respectively. RESULTS A total of 209 subjects were enrolled in this study (133 were HBV positive, 76 healthy controls). Unreliable measurements occurred more frequently after food intake (5%, 24% and 18% at T0, T30min and T120min respectively). In both groups, median LSM2 was significantly higher than LSM1 [6.2 (IQR: 5.4, 7.9)] vs. 4.9 (4.2, 6.2), P < 0.0001. LSM3 was still higher than the baseline, but lower than LSM2. In multivariable analysis, no factor modified the effect of breakfast on LSM. In a subgroup of patients having liver biopsies, we confirmed that food intake can overestimate liver fibrosis. CONCLUSIONS Food intake significantly increases liver stiffness measurement and its IQR values in patients with chronic hepatitis B as well as healthy individuals; and also the number of unreliable liver stiffness measurement values.
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Affiliation(s)
- M Lemoine
- Medical Research Council, The Gambia Unit, Disease Control and Elimination theme, Liver Unit, Fajara, The Gambia, West-Africa; Department of Hepatology, Imperial College London, St Marys, Norfolk Place, London, UK
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165
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Abstract
Optical images were used to study the wetting behavior of water on graphite, sapphire, and quartz along the liquid vapor coexistence curve from room temperature to 300 °C. Wetting transitions were identified by the temperature at which the contact angle decreased to zero and also by the disappearance of dropwise condensation. These two methods yielded consistent values for the wetting temperatures, which were 185 °C, 234 °C, and 271 °C for water on quartz, sapphire, and graphite, respectively. We compare our results with the theoretical predictions based on a simplified model of the water-substrate potential and sharp interfaces.
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Affiliation(s)
- S R Friedman
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697, USA
| | - M Khalil
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697, USA
| | - P Taborek
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697, USA
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166
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Khalil M, Bettin D, Adelmann R, Haustein M, Baudis B, Willkomm L, Udink ten Cate FEA, Pfannkuche K, Hescheler J, Saric T, Bloch W, Brockmeier K. Führt die Applikation von Mechanischen Stress zu einem reiferen Phenotyp von Stammzellen-abgeleiteten Kardiomyozyten? Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0033-1354434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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167
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Ahmed M, Khalil M, Abd El- Fatah G, Sedik M. MICROBIOLOGICAL AND PHYSIO-CHEMICAL STUDIES OF THE DRAIN WASTEWATER. Egyptian Journal of Agricultural Sciences 2013; 64:452-464. [DOI: 10.21608/ejarc.2013.214354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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168
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Pinter D, Sumowski J, Pichler A, Khalil M, Langkammer C, Fuchs S, Deluca J, Fazekas F, Enzinger C. Educational attainment moderates the effect of T2 lesion load and atrophy on cognition in multiple sclerosis. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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169
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Khalil M, Riedlbauer B, Langkammer C, Enzinger C, Ropele S, Stojakovic T, Scharnagl H, Culea V, Petzold A, Archelos J, Fuchs S, Fazekas F. Cerebrospinal fluid transferrin levels are reduced in patients with early multiple sclerosis. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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170
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Hegen H, Millonig A, Bertolotto A, Comabella M, Giovanonni G, Guger M, Hoelzl M, Khalil M, Killestein J, Lindberg R, Malucchi S, Mehling M, Montalban X, Polman CH, Rudzki D, Schautzer F, Sellebjerg F, Sørensen PS, Deisenhammer F. Early detection of neutralizing antibodies to interferon-beta in multiple sclerosis patients: binding antibodies predict neutralizing antibody development. Mult Scler 2013; 20:577-87. [PMID: 24009164 DOI: 10.1177/1352458513503597] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Neutralizing antibodies (NAb) affect efficacy of interferon-beta (IFN-b) treatment in multiple sclerosis (MS) patients. NAbs evolve in up to 44% of treated patients, usually between 6-18 months on therapy. OBJECTIVES To investigate whether early binding antibody (BAb) titers or different IFN-b biomarkers predict NAb evolution. METHODS We included patients with MS or clinically isolated syndrome (CIS) receiving de novo IFN-b treatment in this prospective European multicenter study. Blood samples were collected at baseline, before and after the first IFN-b administration, and again after 3, 12 and 24 months on that therapy; for determination of NAbs, BAbs, gene expression of MxA and protein concentrations of MMP-9, TIMP-1, sTRAIL, CXCL-10 and CCL-2. RESULTS We found that 22 of 164 (13.4%) patients developed NAbs during a median time of 23.8 months on IFN-b treatment. Of these patients, 78.9% were BAb-positive after 3 months. BAb titers ≥ 1:2400 predicted NAb evolution with a sensitivity of 74.7% and a specificity of 98.5%. Cross-sectionally, MxA levels were significantly diminished in the BAb/NAb-positive samples; similarly, CXCL-10 and sTRAIL concentrations in BAb/NAb-positive and BAb-positive/NAb-negative samples, respectively, were also diminished compared to BAb/NAb-negative samples. CONCLUSIONS BAb titers reliably predict NAbs. CXCL-10 is a promising sensitive biomarker for IFN-b response and its abrogation by anti-IFN-b antibodies.
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Affiliation(s)
- H Hegen
- Department of Neurology, Innsbruck Medical University, Austria
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171
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El-Adawi H, El-Sheekh M, Khalil M, El-Deeb N, Hussein M. Lactic acid bacterial extracts as anti-Helicobacter pylori: a molecular approach. Ir J Med Sci 2013; 182:439-52. [PMID: 23404362 DOI: 10.1007/s11845-013-0909-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Accepted: 01/15/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection, the main cause of chronic gastritis, increases gastric cancer risk. Antibiotics-based H. pylori eradication treatment is 90% effective. However, it is expensive and causes side effects and antibiotic resistance. Lactic acid bacteria (LAB) could present a low-cost, large-scale alternative solution to prevent or decrease H. pylori colonization. AIM This work aimed to study the inhibitory effects of LAB strains on the growth and pathogenic activity of H. pylori stains. To this end, we have selected the most virulent H. pylori strains (out of 20 mucosal antral biopsies) regarding cellular vacuolization and induction of apoptosis/necrosis. METHOD The selection of H. pylori pathogenic strains (clinically pre-isolated) were based on their impact of VacA activities on Hep-2 cell line, induction of apoptosis and necrosis in Caco-2 cell line. The Inhibitory effect of LAB strains on the invasion was carried out using the Caco-2 and Hela cell lines, where, they were co-cultured with the pathogenic H. pylori in the presence or absence of LAB extracts. The effect of LAB extracts on TNF-α secretion which induced by H. pylori-LPS was carried out by RT-qPCR. RESULTS L. bulgaricus DSMZ 20080, L. acidophilus and L. plantarum (studied previously and reported as high antioxidant candidate strains) showed the highest anti-pylori activities with inhibition ranged from 51.46 to 88.19%, they preventing the adhesion, invasion and DNA fragmentation of cell lines. In addition, they could reduce the TNF-α expression by 62.13%. CONCLUSION LAB extracts could inhibit the bacterial adhesion and invasion, gastric inflammation and DNA fragmentation induced by Helicobacter pylori.
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Affiliation(s)
- H El-Adawi
- Department of Medical Biotechnology, Genetic Engineering and Biotech Institute, Mubarak City for Scientific Research, Universities and Research District Sector, New Borg El-Arab, P.O.BOX 29134, Alexandria, Egypt.
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172
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Ara A, Khalil M, Rahman MM, Sultana SZ, Mannan S, Ara ZG, Haque MA, Choudhury S, Rabeya S, Hasan MM. Morphometric study of thyroid angle in different age and sex in Bangladeshi cadaver. Mymensingh Med J 2013; 22:423-426. [PMID: 23982527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This cross sectional descriptive study was to measure the thyroid angle and to establish the difference between sexes of different age groups in Bangladeshi cadaver. A total 60 human larynges were collected by purposive sampling from October 2008 to March 2009. Among them 45(male 23 and female 22) were collected from Bangladeshi cadavers (9 to 60 years) at the autopsy laboratory of Department of Forensic Medicine and 15 (male 6 and female 9) from stillborn infants of viable age (28 to 40 weeks of gestation) from Gynaecology and Obstetrics Department of Mymensingh Medical College, Mymensingh. The thyroid angle was measured and significant differences of the dimensions between different age and sex groups were observed. In the present study observed findings was compared with those of other researchers. The mean±SD thyroid angle was found as 65.00±11.65 degree in age Group A (28 to 40 weeks of gestation), 73.69±6.56 degree in age Group B (9 to 16 years) and 77.76±7.76 degree in age Group C (17 to 60 years). The mean thyroid angle was higher in female (83.1667±5.78220 degree) than that in male (73.9412±7.09460 degree) and statistically moderately significant in Group C, where t = 3.853 and p = 0.001. In statistical analysis, differences between age and sex groups were calculated by using Students (unpaired) 't' test. The present study revealed that the value was significantly greater in adult female than male and the value increased with age.
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Affiliation(s)
- A Ara
- Dr Anjuman Ara, Assistant Professor, Department of Anatomy, Community Based Medical College Bangladesh (CBMCB), Mymensingh, Bangladesh
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173
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Glavind J, Kindberg SF, Uldbjerg N, Khalil M, Møller AM, Mortensen BB, Rasmussen OB, Christensen JT, Jørgensen JS, Henriksen TB. Elective caesarean section at 38 weeks versus 39 weeks: neonatal and maternal outcomes in a randomised controlled trial. BJOG 2013; 120:1123-32. [DOI: 10.1111/1471-0528.12278] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2013] [Indexed: 11/30/2022]
Affiliation(s)
- J Glavind
- Department of Obstetrics and Gynaecology; Aarhus University Hospital; Aarhus N; Denmark
| | - SF Kindberg
- Department of Obstetrics and Gynaecology; Aarhus University Hospital; Aarhus N; Denmark
| | - N Uldbjerg
- Department of Obstetrics and Gynaecology; Aarhus University Hospital; Aarhus N; Denmark
| | - M Khalil
- Department of Obstetrics and Gynaecology; Kolding Hospital; Kolding; Denmark
| | - AM Møller
- Department of Obstetrics and Gynaecology; Aalborg University Hospital; Aalborg; Denmark
| | - BB Mortensen
- Department of Obstetrics and Gynaecology; Regional Hospital of Viborg; Viborg; Denmark
| | - OB Rasmussen
- Department of Obstetrics and Gynaecology; Regional Hospital of Randers; Randers; Denmark
| | - JT Christensen
- Department of Obstetrics and Gynaecology; Regional Hospital of Herning; Herning; Denmark
| | - JS Jørgensen
- Department of Obstetrics and Gynaecology; Odense University Hospital; Odense; Denmark
| | - TB Henriksen
- Department of Paediatrics; Aarhus University Hospital; Aarhus N; Denmark
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174
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Shibl A, Tufenkeji H, Khalil M, Memish Z. Consensus recommendation for meningococcal disease prevention for Hajj and Umra pilgrimage/travel medicine. East Mediterr Health J 2013; 19:389-392. [PMID: 23882966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The Islamic Hajj to Makkah (Mecca) has been associated with outbreaks of invasive meningococcal disease and the global spread of Neisseria meningitidis serogroup W-135. For Hajj pilgrims the quadrivalent vaccination against serogroups A, C, W-135 and Y is a mandatory requirement. Novel conjugate vaccines may provide benefits for the community by reduction of carriage. With the introduction of the new generation of quadrivalent meningococcal conjugate vaccines (Menveo, Menactra, and others pending license) and their recent implementation in Saudi Arabia, experts from 11 countries in the Middle East region met at a Meningococcal Leadership Forum (MLF), in Dubai in May 2010 to exchange opinions on meningococcal disease and prevention strategies. These experts discussed the importance of introducing conjugate vaccines for pilgrims and travellers, and elaborated a consensus recommendation to support healthcare professionals and decision-makers.
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Affiliation(s)
- A Shibl
- Department of Microbiology, King Saud University, Riyadh, Saudi Arabia.
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175
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Shibl A, Tufenkeji H, Khalil M, Memish Z. Consensus recommendation for meningococcal disease prevention for Hajj and Umra pilgrimage/travel medicine. East Mediterr Health J 2013. [DOI: 10.26719/2013.19.4.389] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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176
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Halabi R, Diab MO, Moslem B, Khalil M, Marque C. Detecting missing signals in multichannel recordings by using higher order statistics. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2012:3110-3. [PMID: 23366583 DOI: 10.1109/embc.2012.6346622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In real world applications, a multichannel acquisition system is susceptible of having one or many of its sensors displaced or detached, leading therefore to the loss or corruption of the recorded signals. In this paper, we present a technique for detecting missing or corrupted signals in multichannel recordings. Our approach is based on Higher Order Statistics (HOS) analysis. Our approach is tested on real uterine electromyogram (EMG) signals recorded by 4×4 electrode grid. Results have shown that HOS descriptors can discriminate between the two classes of signals (missing vs. non-missing). These results are supported by statistical analysis using the t-test which indicated good statistical significance of 95% confidence level.
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Affiliation(s)
- R Halabi
- Rafik Hariri University (RHU), College of Engineering, Bio-instrumentation, Department, Meshref, Lebanon.
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177
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Ahmed F, Khalil M, Quarshie V. Hull prospective analysis of Botulinum Toxin type A (Botox) use in the treatment of chronic migraine. J Headache Pain 2013. [PMCID: PMC3620140 DOI: 10.1186/1129-2377-14-s1-p187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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178
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Halabi R, Diab MO, Moslem B, Khalil M, Marque C. Cross-correlation analysis of multichannel uterine EMG signals. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2012:3106-9. [PMID: 23366582 DOI: 10.1109/embc.2012.6346621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The prevention of preterm labor remains one of the primary goals of obstetric research. One way to achieve this goal effectively is to understand the mechanisms regulating the uterine contractility. Herein, we evaluate the correlation between uterine electrical activities recorded from spatially-distributed regions by calculating the nonlinear regression coefficient. Results have shown that, during pregnancy, the degree of interdependence between signals is very high whereas, at labor, the correlation between the signals decreases remarkably. We conclude that pregnancy is characterized by the presence of few local potential sources dominating the other sources while at the onset of labor, the number of these sources increases remarkably which affects therefore the correlation between the signals.
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Affiliation(s)
- R Halabi
- Rafik Hariri University (RHU), College of Engineering, Bio-instrumentation, Department, Meshref, Lebanon.
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179
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Khalil M, Kiessling AH, Lisy M, Moritz A, Stock UA, Saggau W. Experience with the endoscopic radial artery harvesting in 450 patients. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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180
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Neef K, Treskes P, Kumar S, Khalil M, Liakopoulos OJ, Madershahian N, Wittwer T, Wahlers T, Choi YH. ELEctrophysiological coupling OF skeletal myoblast based engineered tissue constructs IN VIVO. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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181
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Monsefi N, Stock UA, Zierer A, Khalil M, Ay MC, Beiras-Fernandez A, Kornberger A, Moritz A. Mitral valve surgery following failed MitraClipTM. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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182
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Ahmed F, Khalil M, Quarshie V. Hull prospective analysis of Botulinum Toxin type A (Botox) use in the treatment of chronic migraine. J Headache Pain 2013. [DOI: 10.1186/1129-2377-1-s1-p187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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183
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Mansour O, Megahed M, Schumacher M, Weber J, Khalil M. Coiling of ruptured tiny cerebral aneurysms, feasibility, safety, and durability at midterm follow-up, and individual experience. Clin Neuroradiol 2012. [PMID: 23197366 DOI: 10.1007/s00062-012-0182-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE The tiny size of cerebral aneurysms represents one of the challenging facets for endovascular treatment, with a high risk for intraoperative rupture (IOR). We report on the treatment of tiny ruptured saccular cerebral aneurysms by coil embolization. All cases were that of £ 2-3 mm aneurysms with at least one of the dimensions < 2 mm. MATERIALS AND METHODS Between April 2008 and December 2010, we performed a retrospective analysis of nine consecutive cases of tiny aneurysms treated by coil embolization in our institution. RESULTS Coil embolization was successfully performed in nine cases, whereas in one case, intraoperative rupture (IOR) of the fundus was encountered before complete obliteration of the aneurysm expected to be achieved with two coils. Complete occlusion (in n = 7 aneurysms) or near-complete immediate occlusion (in n = 2 aneurysms) was achieved. A total of 18 coils was used for coiling of the nine aneurysms, wherein five aneurysms were coiled with two coils each, two aneurysms with three coils each, and two aneurysms with only one coil each to achieve accepted results. Balloon assistance was used in three cases. Although a minimal coil projection in the parent vessel was seen in three cases, no untoward clinical complications were seen. At mean follow-up (6.7 months, interquartile range (IQR) 3-12 months), digital subtraction angiography (DSA) and magnetic resonance angiography (MRA) in nine patients demonstrated persistent complete occlusion in six of the aneurysms; one aneurysm showed marked filling of the fundus, and two showed neck remnant but did not need retreatment. All patients with available follow-up were independent in day-to-day activities with a modified Rankin score (mRS) of 0 or 1. CONCLUSIONS Coil embolization of tiny ruptured cerebral aneurysms is feasible. Careful consideration of the technical issues in treatment of such aneurysms is essential to achieve technical success while avoiding complications.
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Affiliation(s)
- O Mansour
- Neurology Department, Alexandria University, Alexandria, Egypt.
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184
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Khalil M, Abdou M, Mansour M, Farag H, Ossman M. A cascaded fuzzy-LOPA risk assessment model applied in natural gas industry. J Loss Prev Process Ind 2012. [DOI: 10.1016/j.jlp.2012.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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185
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El-Naggar IM, Zakaria ES, Ali IM, Khalil M, El-Shahat MF. Chemical studies on polyaniline titanotungstate and its uses to reduction cesium from solutions and polluted milk. J Environ Radioact 2012; 112:108-117. [PMID: 22705414 DOI: 10.1016/j.jenvrad.2012.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 05/01/2012] [Accepted: 05/14/2012] [Indexed: 06/01/2023]
Abstract
Polyaniline titanotungstate (PATiW) was synthesized by the sol-gel method. Adsorption isotherm studies of Cs(+) from aqueous solution are described. Elemental Composition, chemical solubility, ion-exchange capacity (IEC) and pH-titration curve are studied. Distribution coefficients (K(d)) for 10 metal ions were determined. It was found that the polyaniline titanotungstate is highly selective to Cs(+) and the selectivity order is Cs(+)>>>Zr(4+)>Mo(6+)>V(5+)>As(5+)>Cr(3+)>Co(2+)>Cu(2+)>Zn(2+)>Cd(2+). The adsorbent capacity was determined using the Freundlich and Langmuir adsorption isotherm models. The Cs(+) adsorption isotherm data fit best to the Freundlich isotherm model. The maximum Cs(+) uptake of polyaniline titanotungstate was found to be 217 mg g(-1). Column tests were performed to determine the breakthrough curves with varying bed depths and flow rates in different solutions. The results showed that the half breakthrough time increases proportionally with increasing bed depths. Kinetic studies for removal of cesium from milk were also investigated using a scintillation detector head (NaI).
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Affiliation(s)
- I M El-Naggar
- Atomic Energy Authority, Hot Laboratory Center, P. No. 13759, Cairo, Egypt
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186
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Salem A, Szumacher-Strabel M, López S, Khalil M, Mendoza G, Ammar H. In situ degradability of soyabean meal treated with Acacia saligna and Atriplex halimus extracts
in sheep. J Anim Feed Sci 2012. [DOI: 10.22358/jafs/66113/2012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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187
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Lopata K, Van Kuiken BE, Khalil M, Govind N. Linear-Response and Real-Time Time-Dependent Density Functional Theory Studies of Core-Level Near-Edge X-Ray Absorption. J Chem Theory Comput 2012; 8:3284-92. [PMID: 26605735 DOI: 10.1021/ct3005613] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We discuss our implementation and application of time-dependent density functional theory (TDDFT) to core-level near-edge absorption spectroscopy, using both linear-response (LR) and real-time (RT) approaches. We briefly describe our restricted excitation window TDDFT (REW-TDDFT) approach for core excitations, which has also been reported by other groups. This is followed by a detailed discussion of real-time TDDFT techniques tailored to core excitations, including obtaining spectral information through delta-function excitation, postprocessing time-dependent signals, and resonant excitation through quasi-monochromatic excitation. We present results for the oxygen K-edge of water and carbon monoxide; the carbon K-edge of carbon monoxide; the ruthenium L3-edge for the hexaamminerutheium(III) ion, including scalar relativistic corrections via the zeroth order regular approximation (ZORA); and the carbon and fluorine K-edges for a series of fluorobenzenes. In all cases, the calculated spectra are found to be in reasonable agreement with experimental results, requiring only a uniform shift ranging from -4 eV to +19 eV, i.e., on the order of a few percent of the excitation energy. Real-time TDDFT visualization of excited state charge densities is used to visually examine the nature of each excitation, which gives insight into the effects of atoms bound to the absorbing center.
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Affiliation(s)
- K Lopata
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - B E Van Kuiken
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - M Khalil
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - N Govind
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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188
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Khalil M, Enzinger C, Langkammer C, Ropele S, Mader A, Trentini A, Vane MLG, Wallner-Blazek M, Bachmaier G, Archelos JJ, Koel-Simmelink MJA, Blankenstein MA, Fuchs S, Fazekas F, Teunissen CE. CSF neurofilament and N-acetylaspartate related brain changes in clinically isolated syndrome. Mult Scler 2012; 19:436-42. [PMID: 22917689 PMCID: PMC3652709 DOI: 10.1177/1352458512458010] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Axonal damage is considered a major cause of disability in multiple sclerosis (MS) and may start early in the disease. Specific biomarkers for this process are of great interest. Objective: To study if cerebrospinal fluid (CSF) biomarkers for axonal damage reflect and predict disease progression already in the earliest stages of the disease, that is, in clinically isolated syndrome (CIS). Methods: We assessed CSF levels of neurofilament heavy (NFH), neurofilament light (NFL) and N-acetylaspartate (NAA) in 67 patients with CIS and 18 controls with neuropsychiatric diseases of non-inflammatory aetiology (NC). Patients with CIS underwent baseline magnetic resonance imaging (MRI) at 3T, and a follow-up MRI after 1 year was obtained in 28 of them. Results: Compared with NC, patients with CIS had higher NFH (p=0.05) and NFL (p<0.001) levels. No significant group differences were found for NAA. Patients’ NFH levels correlated with physical disability (r=0.304, p<0.05) and with change in brain volume over 1 year of follow-up (r=-0.518, p<0.01) but not with change in T2 lesion load. Conclusion: Our results confirm increased neurofilament levels already in CIS being related to the level of physical disability. The association of NFH levels with brain volume but not lesion volume changes supports the association of these markers with axonal damage.
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Affiliation(s)
- M Khalil
- Department of Neurology, Medical University of Graz, Graz, Austria.
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189
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Meirow D, Raanani H, Brengauz M, Dor J, Tsafrir A, Goldberg D, Eldar-Geva T, Gal M, Ben-Chetrit A, Weintroub A, Varshaver I, Dekel N, Kopeika J, Abdel-Reda H, Khalil M, Khalaf Y, Reddy N, Anderson RA, McLaughlin M, Wallace WHB, Telfer EE, Fujimoto A, Ichinose M, Osuga Y, Oishi H, Hirata T, Harada M, Hasegawa A, Morishima K, Sakurabashi A, Kawana K, Yano T, Kozuma S, Taketani Y, Kim SS, Herraiz S, Novella-Maestre E, Pellicer A. SESSION 73: FEMALE FERTILITY PRESERVATION. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.71] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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190
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Moslem B, Karlsson B, Diab MO, Khalil M, Marque C. Classification performance of the frequency-related parameters derived from uterine EMG signals. Annu Int Conf IEEE Eng Med Biol Soc 2012; 2011:3371-4. [PMID: 22255062 DOI: 10.1109/iembs.2011.6090913] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Frequency-related parameters derived from the uterine electromyogram (EMG) signals are widely used in many pregnancy monitoring and preterm delivery prediction studies. Although they are classical parameters, they are well suited for quantifying uterine EMG signals and have many advantages over amplitude-related parameters. The present work aims to compare various frequency-related parameters according to their classification performances (pregnancy vs. labor) using the receiver operating characteristic (ROC) curve analysis. The comparison between the parameters indicates that median frequency is the best frequency-related parameter that can be used for distinguishing between pregnancy and labor contractions. We conclude that median frequency can be the representative frequency-related parameter for classification problems of uterine EMG.
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Affiliation(s)
- B Moslem
- Laboratoire Biomécanique et Bio-ingénierie, University of Technology of Compiègne – CNRS UMR 6600, Compiègne, Cedex, France.
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191
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Abstract
Classification of multichannel uterine electromyogram (EMG) signals is addressed. Signals were recorded by a matrix of 16 electrodes. First, signals corresponding to each channel were individually classified using an artificial neural network (ANN) based on radial basis functions (RBF). The results have shown that the classification performance varies from one channel to another. Then, a decision fusion method based on these classification performances was tested. After fusion, the network yielded better classification accuracy than any individual channel could provide. The high percentage of correctly classified labor/non-labor events proves the efficiency of multichannel recordings in detecting labor. These findings can be very useful for the aim of classifying antepartum versus labor patients.
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Affiliation(s)
- B Moslem
- Laboratoire Biomécanique et Bio-ingénierie, University of Technology of Compiègne – CNRS UMR 6600 Compiègne, Cedex, France.
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192
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Pichler A, Enzinger C, Fuchs S, Plecko-Startinig B, Gruber-Sedlmayr U, Linortner P, Langkammer C, Khalil M, Ebner F, Ropele S, Fazekas F. Differences and similarities in the evolution of morphologic brain abnormalities between paediatric and adult-onset multiple sclerosis. Mult Scler 2012; 19:167-72. [PMID: 22717380 DOI: 10.1177/1352458512448107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Paediatric-onset multiple sclerosis (pMS) is multiple sclerosis (MS) occurring before the age of 18 years and may present and develop differently from adult-onset MS (aMS). Whether there are also differences regarding the accrual of brain changes is largely unknown. METHODS We compared the evolution of the T2- and T1-lesion load (LL), the black hole ratio (BHR), and annualised brain volume change (aBVC) between 21 pMS patients (age at onset: 14.4±2.3 years) and 21 aMS patients (age at onset: 29.4±6.5 years) matched for disease duration (pMS: 1.0±1.8 years; aMS: 1.6±1.7 years, p=0.27). Follow-up was for 4.2±3.7 years in pMS and 3.1±0.6 years in aMS. Clinical comparisons included the course of disability assessed with the Expanded Disability Status Scale (EDSS) score and annualised relapse rate (ARR). RESULTS At baseline, pMS and aMS had similar EDSS, T1-LL, BHR, whereas T2-LL was higher in aMS (aMS: 9.2±11.6 ccm; pMS: 4.1±6.2 ccm, p=0.02). The change of T2-LL and T1-LL during the observation period was similar in both groups. At follow-up, disability was lower in pMS (EDSS score in pMS: 0.9±0.9; aMS: 1.7±1.3, p=0.04), despite a significantly higher accrual of destructive brain lesions (BHR in pMS: 23.7±23.7%; aMS: 5.9±4.0%, p=0.02) and a similar rate of brain volume loss. CONCLUSION Our observation of a morphologically more aggressive disease evolution paralleled by less disability in pMS than in aMS (defined using EDSS) suggests a higher compensatory capacity in pMS. This fact may obscure the need for treatment of pMS patients with disease modifying treatments (DMTs) based solely on clinical observation.
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Affiliation(s)
- A Pichler
- Department of Neurology, Medical University of Graz, Austria
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193
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Arafa A, Rida S, Khalil M. Solutions of Fractional Order Model of Childhood diseases with Constant Vaccination Strategy. ACTA ACUST UNITED AC 2012. [DOI: 10.12785/msl/010103] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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194
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Rida SZ, Abd El Radi AS, Arafa A, Khalil M. Approximate solution of the Fractional order model of HCV infection with drug therapy effect. International Journal of Applied Mathematical Research 2012; 1. [DOI: 10.14419/ijamr.v1i2.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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195
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Rida SZ, Abd El Radi AS, Arafa A, Khalil M. The effect of the environmental parameter on the Hantavirus infection through a fractional-order SI model. International Journal of Basic and Applied Sciences 2012; 1. [DOI: 10.14419/ijbas.v1i2.26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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196
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Barakat M, Lefebvre D, Khalil M, Druaux F, Mustapha O. Parameter selection algorithm with self adaptive growing neural network classifier for diagnosis issues. INT J MACH LEARN CYB 2012. [DOI: 10.1007/s13042-012-0089-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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197
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Martys NS, Khalil M, George WL, Lootens D, Hébraud P. Stress propagation in a concentrated colloidal suspension under shear. Eur Phys J E Soft Matter 2012; 35:1-7. [PMID: 22426963 DOI: 10.1140/epje/i2012-12020-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 02/27/2012] [Indexed: 05/31/2023]
Abstract
The stress propagation in a concentrated attractive colloidal suspension under shear is studied using numerical simulations. The spatial correlations of the intercolloidal stress field are studied and an inertia-like tensor is defined in order to characterize the anisotropic nature of the stress field. It is shown that the colloids remain in a liquid order, the intercolloidal stress is strongly anisotropic. A transition under flow is observed: during a transient regime at low deformation, the stress propagates along the compression direction of the shear, whereas at larger deformations, the stress is organized into layers parallel to the (flow, vorticity) plane.
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Affiliation(s)
- N S Martys
- National Institute of Standards and Technology, 100 Bureau Drive, Stop 8615, Gaithersburg, MD 20899-8615, USA
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198
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Neef K, Kumar S, Treskes P, Adelmann R, Khalil M, Stamm C, Wittwer T, Wahlers T, Choi YH. Mechanical preconditioning enables electrophysiological coupling of skeletal myoblast cells to myocardium. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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199
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Krüger T, Lisy M, Khalil M, Nagy Z, Lescan M, Stock UA, Schlensak S, Wildhirt SM. Matrix-based repair of acute Type-A aortic dissections as an alternative to conventional glue repair. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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200
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Arafa AAM, Rida SZ, Khalil M. Fractional modeling dynamics of HIV and CD4+ T-cells during primary infection. Nonlinear Biomed Phys 2012; 6:1. [PMID: 22214194 PMCID: PMC3275462 DOI: 10.1186/1753-4631-6-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 01/03/2012] [Indexed: 05/13/2023]
Abstract
In this paper, we introduce fractional-order into a model of HIV-1 infection of CD4+ T cells. We study the effect of the changing the average number of viral particles N with different sets of initial conditions on the dynamics of the presented model. Generalized Euler method (GEM) will be used to find a numerical solution of the HIV-1 infection fractional order model.
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Affiliation(s)
- AAM Arafa
- Department of mathematics, Faculty of Science, South Valley University, Qena, Egypt
| | - SZ Rida
- Department of mathematics, Faculty of Science, South Valley University, Qena, Egypt
| | - M Khalil
- Department of mathematics, Faculty of Engineering, Modern Science and Arts University (MSA), Giza, Egypt
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