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Search Results: 1 - 10 of 1127 matches for " Shirin Karimi "
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Etiology of renal failure and peritoneal dialysis complications in Isfahan  [PDF]
Soheila Mojdeh, Shirin Karimi, Ali Mehrabi, Soheila Bakhtiari
Health (Health) , 2013, DOI: 10.4236/health.2013.510229
Abstract:

Introduction: Worldwide specific diseases are jeopardizing people’s health in the world as well as in Iran. Chronic renal failure as a developed and irreversible failure is usually progressive. End Stage Renal Disease (ESRD) is a situation when renal function is not sufficient to preserve one’s life leading to acute uremia resulting in dialysis and/or kidney transplantation for the patients. Although dialysis methods bring about complications for the patients, peritoneal dialysis is relatively cost-effective and more convenient to survive. The present study aimed to investigate (the) Etiologic factor of renal failure and imposed complications of peritoneal dialysis in the patients of Isfahan Alzahra hospital. Materials and Methods: It was a cross-sectional descriptive study conducted on 67 patients in Isfahan Peritoneal Dialysis Center. The data from the patients were collected through a two-section questionnaire whose first section was allocated to demographic information and the second part was related to the disease and complications of peritoneal dialysis. The collected data were analyzed by SPSS version 18. Results: The findings showed that there were 39 (58%) males and 28 (42%) females. Mean age of the subjects was 48 (18.8) years old. Regarding marital status, 65% were married and 35% were single. Considering complications, 28 subjects (53.5%) had infectious complications while 24 subjects (46.2%) had non-infectious complications. The highest frequency in etiologic factor of renal failure was diabetes mellitus in 29 subjects (43.9%) and the lowest for polycystic kidney in 2 subjects (3%); in addition, hypertension was observed in 51 subjects (77.3%). Discussion: The most frequent and important complication of peritoneal dialysis catheters is infection, whic

Lymphocytic Bronchiolitis as Presenting Disorder in an Undiagnosed Adult Patient with Chronic Granulomatous Disease
Payam Tabarsi,Mehdi Mirsaeidi,Shirin Karimi,Behzad Banieghbal
Iranian Journal Of Allergy, Asthma and Immunology , 2007,
Abstract: Chronic Granulomatous Disease (CGD) is a rare primary immunodeficiency disease. Although the most affected patients are diagnosed in childhood, there are several reports of the disease presenting in adult patients. Here we present a 40 years old man who was admitted in hospital due to respiratory symptoms and ground glass pattern in high resolution computed tomography of lung. Open lung biopsy revealed lymphocytic bronchiolitis. Because of past medical history of granulomatous lesion in lung and recurrent abscesses of skin and soft tissue, NBT test was conducted which its result revealed that the disorder was compatible with CGD and then it was confirmed by fluorescent cytometry.
First report of Griscelli syndrome from Afghan population in IRAN
Shirin Sayyahfar,Abdollah Karimi,Alireza Fahimzad,Javad Ghorubi
Journal of Research in Medical Sciences , 2008,
Abstract: A 4 month old Afghan male infant presented with partial albinism, hepatosplenomegaly and pancytopenia. Skin and hair shaft microscopic examination revealed large clumped melanosomes and Griscelli syndrome was diagnosed. Unless treated with bone marrow transplantation, it is a fatal disease in accelerated phase. Pediatricians should consider this syndrome in infants with abnormal light hair because early diagnosis could be life saving. KEYWORDS: Griscelli syndrome, partial albinism, hemophagocytic lymphohistiocytosis
Histopathological Findings in Immunohistological Staining of the Granulomatous Tissue Reaction Associated with Tuberculosis
Shirin Karimi,Masoud Shamaei,Mihan Pourabdollah,Makan Sadr,Mehrdad Karbasi,Arda Kiani,Moslem Bahadori
Tuberculosis Research and Treatment , 2014, DOI: 10.1155/2014/858396
Abstract: Purpose. The histological diagnosis of Mycobacterium tuberculosis (MTB) remains a diagnostic challenge despite different methods. Immunohistochemistry (IHC) not only could confirm granulomatous tissue involvement but also can demonstrate MTB antigen immunolocalization. This study tries to clarify the details of immunohistochemical staining for MTB with pAbBCG. Materials/Methods. Twenty-three confirmed TB granulomatous tissue samples were studied by Ziehl-Neelsen and immunohistochemistry (IHC) staining with pAbBCG. Samples were selected from the archive of the Department of Pathology, National Research Institute of Tuberculosis and Lung Disease, Tehran, Iran. Results. IHC staining was positive in all samples, whereas Ziehl-Neelsen was positive in 9 cases out of 23 (39.1%). Tissue types used were pleural tissue, lymph nodes, and lung tissue. IHC showed positive coarse granular cytoplasmic and round, fragmented bacillary staining. In this study, epithelioid cells clearly showed more positive staining at the periphery of the granuloma rather than the center of granuloma. There is also positive staining in endothelial cells, fibroblasts, plasma cells, lymphocytes, and macrophages outside the granuloma. Conclusion. Considering the criteria of positive immunohistochemical staining of TB granulomatous reactions, this stain not only highlights the presence of mycobacterial antigens for tissue diagnosis, but also could morphologically localize its distribution in different cells. 1. Introduction Histological diagnosis of tuberculosis (TB) has long been an important issue in anatomical pathology. On the other hand, extrapulmonary TB comprises 10–15% of infections with Mtb. Following HIV prevalence increase, extrapulmonary TB is rising as well [1, 2]. Considering the limitations in sensitivity and specificity of Ziehl-Neelsen staining [3], mycobacterial evaluation, mycobacterial culture, and molecular and serological techniques [4–6], histomorphological analysis appears to be the only feasible technique for field diagnosis of TB in some patients [7, 8]. Granulomatous reactions, and in some cases, nongranulomatous reactions such as the presence of foamy macrophages [9] or mycobacterial spindle cell pseudotumour [10] in some types of mycobacterial infections are indicative of TB only if the presence of TB bacilli has been confirmed in the tissue. Recently, it has been stated that PCR results are acceptable only if the presence of TB bacilli can be confirmed in the tissue [11]. Detection of beaded bacilli (which are more commonly observed in the necrotic zone) by
Electronic and Structural Properties of Li3AlP2 and Li3AlAs2 from First Principles  [PDF]
Mehrdad Dadsetani, Shirin Namjoo
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.29110
Abstract: A detailed analysis of the electronic and structural properties of the filled tetrahedral semiconductors Li3AlP2 and Li3AlAs2 has been performed, using the full potential linearized augmented plane wave method within the density functional theory. Experimental results about the structural properties, involves the positions of the elements Al and P(As). Since there were not any other efforts about the positions of the Li elements in these compounds, so to our knowledge there was no theoretical study about them till now. In the first step the interactional forces between atoms were minimized. The calculated internal coordinations of atoms agree well with the experimental results. Using these positions we obtained the equilibrium lattice constants, bulk modulus and their pressure derivative. In the second step the electronic properties of Li3AlP2 and Li3AlAs2 have been studied. The study of total and partial electronic DOS indicate the main contribution of DOS consists of P(As) 3p(4p) and P(As) 3s(4s) states. Our band structure calculation verifies that Li3AlP2 is an indirect gap semiconductor with a value of about 2.36 eV between valance band maximum occuring at H point and conduction band minimum occuring at Г point; though the difference between the direct (2.38 eV) and indirect (2.36 eV) is very small. We also found that Li3AlAs2 is a direct band gap (1.49 eV) in the center of BZ.
A New Iterative Solution Method for Solving Multiple Linear Systems  [PDF]
Saeed Karimi
Advances in Linear Algebra & Matrix Theory (ALAMT) , 2012, DOI: 10.4236/alamt.2012.23004
Abstract: In this paper, a new iterative solution method is proposed for solving multiple linear systems A(i)x(i)=b(i), for 1≤ i ≤ s, where the coefficient matrices A(i) and the right-hand sides b(i) are arbitrary in general. The proposed method is based on the global least squares (GL-LSQR) method. A linear operator is defined to connect all the linear systems together. To approximate all numerical solutions of the multiple linear systems simultaneously, the GL-LSQR method is applied for the operator and the approximate solutions are obtained recursively. The presented method is compared with the well-known LSQR method. Finally, numerical experiments on test matrices are presented to show the efficiency of the new method.
Investigation of the Stability of Oxadiasole and Their Analogs Using Quantum Mechanics Computation  [PDF]
Masoud Karimi
Computational Chemistry (CC) , 2016, DOI: 10.4236/cc.2016.41002
Abstract: This study aimed at investigating factors affecting the stability as well as structural properties of different Oxadiasole and Thiadiasole isomers based on theoretical level B3LYP/6-311+G**, Nuclear Magnetic Resonance (NMR), and Nucleus-independent Chemical Shift (NICS). Qualitative relationships between relative stabilities of 1,2,3-Oxadiazole, 1,2,4-Oxadiazole, 1,2,5-Oxadiazole and 1,3,4-Oxadiazole were obtained. Aromatic stabilization energy (ASE), aromatic ring current (NICS), HUMO-LUMO gaps, electro-negativity (X), hardness (η), softness (S), electro-philicity (ω) and structural parameters were also calculated in the same theoretical level. The results show that 1,3,4-Oxadiazole is more stable than 1,2,3-Oxadiazole, 1,2,4-Oxadiazole and 1,2,5-Oxadiazole. Unlike the trends observed in Oxadiazoles, 1,2,5-Thiadiazole isomer is more stable than other corresponding Isomers.
Numerical Solutions of a Class of Second Order Boundary Value Problems on Using Bernoulli Polynomials  [PDF]
Md. Shafiqul Islam, Afroza Shirin
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.29147
Abstract: The aim of this paper is to find the numerical solutions of the second order linear and nonlinear differential equations with Dirichlet, Neumann and Robin boundary conditions. We use the Bernoulli polynomials as linear combination to the approximate solutions of 2nd order boundary value problems. Here the Bernoulli polynomials over the interval [0,1] are chosen as trial functions so that care has been taken to satisfy the corresponding homogeneous form of the Dirichlet boundary conditions in the Galerkin weighted residual method. In addition to that the given differential equation over arbitrary finite domain [a,b] and the boundary conditions are converted into its equivalent form over the interval [0,1]. All the formulas are verified by considering numerical examples. The approximate solutions are compared with the exact solutions, and also with the solutions of the existing methods. A reliable good accuracy is obtained in all cases.
Investigating Language-Related Episodes during Mechanical and Meaningful Output Activities
Shirin Abadikhah
International Journal of English Linguistics , 2011, DOI: 10.5539/ijel.v1n2p281
Abstract: The present study examines how EFL learners consciously reflect on their language during a set of mechanical and meaningful output activities. Thirty-six Farsi learners of English negotiated on linguistic features and completed six activities over a period of six weeks. The transcripts from the learners’ interaction were analyzed for instances of language-related episodes (LREs), their principal focus on meaning or grammar and their nature and outcome. The results showed that (1) the meaningful output activities elicited significantly more LREs than did the mechanical output activities, (2) while approximately half of the LREs in the meaningful activities focused on lexis and meaning, the majority of LREs in the mechanical activities were directed towards grammatical forms and a small portion was focused on meaning, (3) the two output groups differed significantly in the continuous and correctly solved episodes. The study provides support on the effectiveness of collaborative output activities in pushing learners to verbalize their internal linguistic processing and focusing their attention on a wide range of linguistic features.
Book Review: Arshad Alam. Inside a madrasa. Knowledge, power and Islamic identity in India. New Delhi: Routledge. 2011.
Shirin Jahangir
Journal of International and Global Studies , 2012,
Abstract:
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