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Strong Convergence of a Generalized Iterative Method for Semigroups of Nonexpansive Mappings in Hilbert Spaces
Husain Piri,Hamid Vaezi
Fixed Point Theory and Applications , 2010, DOI: 10.1155/2010/907275
Strong Convergence of a Generalized Iterative Method for Semigroups of Nonexpansive Mappings in Hilbert Spaces
Piri Husain,Vaezi Hamid
Fixed Point Theory and Applications , 2010,
Abstract: Using -strongly accretive and -strictly pseudocontractive mapping, we introduce a general iterative method for finding a common fixed point of a semigroup of non-expansive mappings in a Hilbert space, with respect to a sequence of left regular means defined on an appropriate space of bounded real-valued functions of the semigroup. We prove the strong convergence of the proposed iterative algorithm to the unique solution of a variational inequality.
Inter-Coronary Communication: A Rare Anomaly in Unusual Site  [PDF]
Husain Jabbad
World Journal of Cardiovascular Diseases (WJCD) , 2015, DOI: 10.4236/wjcd.2015.511037
Abstract: Intercoronary connection is a rare variant of coronary anomalies with a direct continuity between two main coronary arteries. It may function as an alternative pathway to blood flow in compromised coronary circulation. 64 years old male presented with 4 weeks history of retro-sternal chest pain and shortness of breath; his risk factors were diabetes mellitus, hypertension and smoking. Physical examination was normal and he had no audible murmur; he had elevated cardiac enzymes; in echocardiography there was inferior wall hypokinesia, cardiac catheterization revealed complete occlusion of med right coronary artery and complete occlusion of the left main (LM) trunk. Blood flow to the entire myocardium came from large abnormal coronary connection between the right coronary artery ostium and the proximal left anterior descending artery. A smaller arterial communication maintained blood flow to the distal right coronary artery. Cardiac computed tomographic angiography confirmed the presence of a patent left main ostium followed by complete occlusion. This unusual anatomical variation has saved the life of the patient and allowed time for surgical revascularization. The patient underwent successful triple coronary artery bypass grafts with no postoperative difficulties or complications. On one-year follow-up, the patient is asymptomatic, fully active with no new ECG or echocardiography changes.
Surgical Management of Coronary Arteriovenous Fistula in Patients Presenting with Acute Coronary Syndrome—A Local University Hospital 6 Years Experience  [PDF]
Husain Jabbad
World Journal of Cardiovascular Surgery (WJCS) , 2015, DOI: 10.4236/wjcs.2015.512019
Abstract: Background: Anomalies of the coronary arteries are uncommon, usually discovered incidentally during diagnostic cardiac catheterization or cardiac computed tomography (CCT). Coronary artery fistula (CAF) is one of the varieties of coronary termination anomalies. Some of CAF patients have symptoms of myocardial ischemia. Methods: In King Abdulaziz university hospital (KAUH) over six years period, five patients presented with acute coronary syndrome (ACS) and were diagnosed to have CAF by cardiac catheterization during the diagnostic workup of ischemic heart disease (IHD), four males and one female, mean age 57.4 ± 6.6 years; four patients had CAF with associated coronary atherosclerotic disease (CAD); one patient had large complex CAF with no significant CAD; all patients with CAD underwent closure/excision of the CAF with surgical revascularization; the patient with no CAD preferred surgical excision over endovascular intervention. Results: All patients had surgery with uneventful postoperative course and they were doing well with 3 to 7 years outpatient follow up. Conclusion: Surgical management is safe in patients with coronary artery anomalies presenting with ACS.
Corporate communications impact on corporate image and corporate competitiveness
Valentina Piri
Tr?i?te/Market , 2008,
Abstract: The subject of this paper is an analysis of the impact of corporate communications and of the intensity of their application on a company’s image management, and an emphasis of the role that a company’s image plays as one of the fundamental sources of its competitiveness in contemporary market conditions. Through review and analysis of theoretical contributions, the paper shows how corporate communications integrate management, organization and the marketing communication dimension at the level of the company and how, by adequate intensity of their application and an adequate degree of integration, they may have an impact on the company’s image management. The need to understand the concept of company image as a significant source of competitiveness is also stressed. For that purpose, the work includes comprehensive research of the impact of the intensity of corporate communications on the company’s image on the market of the Republic of Croatia while also researching the impact of the company’s positive image on its competitiveness. The methodology used in this work comprised a public opinion poll, carried out on a convenient sample of persons. Gathered data were analyzed using multiple regression and correlation analysis methods. Research results confirmed the impact of the intensity of corporate communications on the company’s image as well as the statement that the company’s positive image contributes to increasing its competitiveness. In that sense, it is possible to attribute to corporate communications a strategically important role for the company’s business operations within the framework of newly emerging market conditions.
The Effect of Dorsal Hippocampal α2-Adrenegic Receptors on WIN55,212-2 State-Dependent Memory of Passive Avoidance
m Piri
Qom University of Medical Sciences Journal , 2012,
Abstract: Background and Objectives: Cannabinoids are a class of psychoactive compounds that produce a wide array of effects in a large number of species. In the present study, the effects of bilateral intra-CA1 injections of an α2-adrenergic receptor agents, on WIN55,212-2 state-dependent learning were examined in adult male Wistar rats. Methods: The animals were bilaterally implanted with chronic cannulae in the CA1 regions of the dorsal hippocampus, trained in a step-down type inhibitory avoidance task, and tested 24h after training to measure step-down latency. Results: Post-training intra-CA1 injection of WIN55,212-2 (0.25 and 0.5μg/rat) induced impairment of memory retention. Amnesia produced by post-training WIN55,212-2 (0.5μg/rat) was reversed by pre-test administration of the same dose of WIN55,212-2 that is due to a state-dependent effect. Pre-test intra-CA1 injection of clonidine (0.5 and 0.75μg/rat, intra-CA1) improved post-training WIN55,212-2 (0.5μg/rat, intra-CA1)-induced retrieval impairment, while pre-test intra-CA1 injection of yohimbine (1μg/rat, intra-CA1) 2min before the administration of WIN55,212-2 (0.5μg/rat, intra-CA1) inhibited WIN55,212-2 state-dependent memory. Conclusion: These results suggest that α2-adrenergic receptors of the dorsal hippocampal CA1 regions may play an important role in Win55,212-2-induced amnesia and WIN55,212-2 state-dependent memory
Second-Order Duality for Continuous Programming Containing Support Functions  [PDF]
Iqbal Husain, Mashoob Masoodi
Applied Mathematics (AM) , 2010, DOI: 10.4236/am.2010.16071
Abstract: A second-order dual problem is formulated for a class of continuous programming problem in which both objective and constrained functions contain support functions, hence it is nondifferentiable. Under second-order invexity and second-order pseudoinvexity, weak, strong and converse duality theorems are established for this pair of dual problems. Special cases are deduced and a pair of dual continuous problems with natural boundary values is constructed. A close relationship between duality results of our problems and those of the corresponding (static) nonlinear programming problem with support functions is briefly outlined.
Shoot organogenesis in oleaster (Elaeagnus angustifolia L.)
O Karami, K Piri
African Journal of Biotechnology , 2009,
Abstract: Efficient plant regeneration through organogenesis was achieved from callus cultures derived from leaf explants of Elaeagnus angustifolia. Calli were obtained on MS medai containing 3% sucrose and different concentrations of TDZ (0.5, 1, 2, 3, 4 and 6 mg/l). Maximum percentage response for callus formation was 85% on MS medium supplemented with 2 mg/l of TDZ. Shoot organogenesis was achieved after transfer of calli to MS media with 3% sucrose and different concentrations of BA (0.5, 1, 2, 3, 4 and 6 mg/l) and kinetin (0.5, 1, 2, 3, 4 and 6 mg/l). Maximum organogenesis was obtained with 2 mg/l of BA. Rooting of the shoots was achieved on MS supplemented with 0.2 mg/l of IBA. Regenerated plantlets were acclimatized and successfully transplanted to soil.
Mojgan Kalantary,Solmaz Piri
Iranian Journal of Radiology , 2012,
Abstract: The fetal biophysical profile score (BPS or BPP) re-fers to the sonographic assessment of four discrete biophysical variables:Fetal movementFetal toneFetal breathingAmniotic fluid volumeResult of nonstress testingEach of these five parameters is given a score of 0 or 2 points. Presence of these biophysical variables implies absence of significant central nervous system hypoxemia/acidemia at the time of testing. By comparison, a compromised fetus typically exhibits loss of acceleration of fetal heart rate, decreased body movement and breathing, hypotonia and less acutely, decreased amniotic fluid volume. Sonographic detection of signs of fetal compromise can allow appropriate intervention that will ideally prevent adverse fetal squeal.
Knowledge Management Practices in a Successful Research and Development Organization
Jasemi, Milad,Piri, Morteza
Open Journal of Knowledge Management , 2012,
Abstract: In this paper after a review on the concept and literature of knowledge management, the conceptual model of a successful knowledge management system that is currently being applied in a research and development organization is presented and discussed. The main contribution of the paper is presenting the model in its useful and practical status without becoming involved in theoretical discussions that have different shapes but similar meanings.
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