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Search Results: 1 - 10 of 2277 matches for " Eghbali Seyed "
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Oncogenic human papillomavirus genital infection in southern Iranian women: population-based study versus clinic-based data
Eghbali Seyed,Amirinejad Roya,Obeidi Narges,Mosadeghzadeh Shiva
Virology Journal , 2012, DOI: 10.1186/1743-422x-9-194
Abstract: Background Epidemiological studies on genital human papilloma viruses infection (HPVs) in general population are crucial for the implementation of health policy guidelines for developing the strategies to prevent the primary and secondary cervical cancer. In different parts of Iran, there is a lack of population-based studies to determine the prevalence of HPV in the general population. The aim of this population-based study is to compare the prevalence rate of genital HPV infection among reproductive women with our previous clinic-based data, which showed a prevalence rate of 5% in women in southern Iran. Results Using general primers for all genotypes of HPV, of 799 randomly selected women, five (0.63%, 95% CI 0.23-1.55%) tested positive for HPV DNA. Overall, seven different HPV genotypes were detected: six types (16, 18, 31, 33, 51 and 56) were carcinogenic, or “high risk genotypes” and one genotype (HPV-66) was “probably carcinogenic.” Conclusions In a population-based study, the prevalence of HPV infection among southern Iranian women was lower than that observed worldwide. However, our gynaecological clinic-based study on the prevalence of HPV infection showed results comparable with other studies in the Middle East and Persian Gulf countries. Since gynaecological clinic-based data may generally overestimate HPV prevalence, estimates of prevalence according to clinic-based data should be adjusted downward by the population-based survey estimates.
Mixed Medullary-Follicular Carcinoma of the Thyroid
Maasumeh Tohidi,Gholamreza Pourbehi,Mohammad Bahmanyar,Seyed Sajjad Eghbali,Mohammadreza Kalantar Hormozi,Iraj Nabipour
Case Reports in Endocrinology , 2013, DOI: 10.1155/2013/571692
Abstract: Introduction. Mixed medullary-follicular thyroid carcinoma is an uncommon tumor that consists of both follicular and parafollicular cells. Case. We report a 43-year-old woman with a palpable mass in the right side of the neck. Fine needle aspiration suggested a diagnosis of high grade anaplastic carcinoma that has been associated with papillary features. Total thyroidectomy was done in which histopathological examination showed diagnosis of medullary carcinoma. Immunohistochemical staining was positive for chromogranin, calcitonin, and thyroglobulin in tumoral cells. Conclusion. Mixed medullary-follicular thyroid carcinoma is a rare tumor. Diagnosis of these tumors with fine needle aspiration is very difficult and may lead to misdiagnosis. It is necessary to correlate the cytological finding with serum calcitonin and thyroglobulin. Also immunostaining for calcitonin and thyroglobulin confirms diagnosis. 1. Introduction Medullary thyroid carcinoma (MTC) is a neuroendocrine tumor that originates from parafollicular or c-cells of the thyroid gland [1]. MTC accounts for 5–10% of all thyroid carcinomas. A characteristic feature of this tumor is production of calcitonin. Most MTCs (80%) are sporadic and others (20%) are familial [2, 3]. Pfaltz et al. in 1959 reported that MTC is a tumor with solid-nonfollicular pattern, and it is different from other thyroid carcinomas clinically and pathologically [4]. Also it was noted that histological appearance of MTC may be atypical, and follicular structures can be seen in it. Also it was shown that these tumors have positive immunoreactivity for calcitonin and thyroglobulin. Subsequently such tumors were named mixed medullary-follicular carcinoma [4, 5]. Mixed medullary-follicular carcinoma is a rare tumor of the thyroid. Less than 40 cases have been reported in the literature [4–8]. The cellular origin of the mixed medullary-follicular tumors is unknown. Here we report a particular presentation of a mixed medullary-follicular carcinoma in which fine needle aspiration showed anaplastic carcinoma and mixed medullary-follicular thyroid carcinoma confirmed after thyroidectomy. 2. Case A 43-year-old woman presented with a palpable mass in the right side of the neck, increasing in size over several months. Physical examination revealed a 4?cm ?×? 4?cm, well-defined nontender nodule in right thyroidal lobe. There were no other physical abnormalities. The patient didnot smoke. Her family history was negative for thyroid and other endocrine tumors. The patient had no history of neck or whole body radiation. The plasma levels
Finite Element Study on the Development of Damage and Flow Characteristics in Al7075 Alloy during Ex-ECAP  [PDF]
Mehdi Shaban Ghazani, Beitallah Eghbali
Modeling and Numerical Simulation of Material Science (MNSMS) , 2013, DOI: 10.4236/mnsms.2013.31004
Abstract: In the present study, 3D-finite element method was conducted to investigate the deformation characteristics of Al7075 alloy during integrated extrusion-equal channel angular pressing. Effective strain, strain rate, mean stress, and damage distributions were evaluated. Severe cracking was observed at Al7075 sample after extrusion-equal channel angular pressing. Finite element results show that cracking is due to the positive mean stress and damage accumulation at the top surface of sample.
Prevalence of various Human Papillomavirus (HPV) genotypes among women who subjected to routine Pap smear test in Bushehr city (South west of Iran)2008-2009
Keivan Zandi, Seyed Eghbali, Rasool Hamkar, Shahnaz Ahmadi, Elissa ramedani, Iman Deilami, Heidar Nejad, Fatemeh Farshadpour, Zahra Rastian
Virology Journal , 2010, DOI: 10.1186/1743-422x-7-65
Abstract: Based on the collected data, 11(5.5%) samples were detected positive for HPV DNA and 189(94.5%) samples out of 200 samples were detected negative for HPV DNA. Meanwhile 4(2%) samples detected positive for HPV DNA by PCR were detected positive for HPV by pap smear test as well. On the other hand 5 samples which were detected positive for HPV by pap smear test didn't have HPV DNA after being tested by PCR method. Among the 11 positive samples 7 samples were identified as HPV-16, 3 samples were HPV-18 and one was HPV-53.Regarding the prevalence of highly carcinogen genotypes of HPV in our study determination of genital HPV prevalence among the normal population of women of Bushehr city is recommended.Worldwide, cervical cancer is the second most common cancer affecting women. Nowadays screening programs have reduced the mortality and morbidity of this disease, but 500,000 new cases of invasive cancer of the cervix are still diagnosed annually. Epidemiological and molecular studies have demonstrated that certain types of human Papillomaviruses (Highly carcinogen genotypes) are the major cause of most cases of cervical cancer [1].Human papillomaviruses (HPVs) belong to Papillomaviridaefamily[2]. So far, 118 types have been identified according to their biological niche, oncogenic potential and Phylogenetic position. There are about 40 HPV viral types that are commonly found in the genital tract which are classified in the Alphapapillomavirus genus[3,4]. On the basis of molecular epidemiologic evidence, genital HPV types have been subdivided in to low-risk types and high-risk ones [5,6]. Several HPV types, such as HPVs 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59 and 66 have been implicated in cervical carcinogenesis (high risk types), whereas other types, such as HPVs 6 and 11, are frequently detected in benign lesions such as condylomata acuminate [1]. Women infected with high risk HPV types are considered to be at a higher risk for the development of cervical cancer
Stability of cubic functional equation in non-Archimedean $mathcal L$-fuzzy normed spaces
Nasrin Eghbali
Albanian Journal of Mathematics , 2011,
Abstract: We determine some stability results concerning the cubic func-tional equation in non-Archimedean fuzzy normed spaces. Our result can be regarded as a generalization of the stability phenomenon in the framework of L-fuzzy normed spaces.
Solution of the equations of motion for a super non-Abelian sigma model in curved background by the super Poisson-Lie T-duality
Ali Eghbali
Physics , 2014, DOI: 10.1007/JHEP02(2015)025
Abstract: The equations of motion of a super non-Abelian T-dual sigma model on the Lie supergroup $(C^1_1+A)$ in the curved background are explicitly solved by the super Poisson-Lie T-duality. To find the solution of the flat model we use the transformation of supercoordinates, transforming the metric into a constant one, which is shown to be a supercanonical transformation. Then, using the super Poisson-Lie T-duality transformations and the dual decomposition of elements of Drinfel'd superdouble, the solution of the equations of motion for the dual sigma model is obtained. The general form of the dilaton fields satisfying the vanishing $\beta-$function equations of the sigma models is found. In this respect, conformal invariance of the sigma models built on the Drinfel'd superdouble $((C^1_1+A),I_{(2|2)})$ is guaranteed up to one-loop, at least.
On Artinianness of Formal Local Cohomology, Colocalization and Coassociated Primes
Majid Eghbali
Mathematics , 2010,
Abstract: This paper at first concerns some criteria on Artinianness and vanishing of formal local cohomology modules. Then we consider the cosupport and the set of coassociated primes of these modules more precisely.
On set theoretically and cohomologically complete intersection ideals
Majid eghbali
Mathematics , 2012,
Abstract: Let $(R,\fm)$ be a local ring and $\fa$ be an ideal of $R$. The inequalities $$\begin{array}{ll} \ \Ht(\fa) \leq \cd(\fa,R) \leq \ara(\fa) \leq l(\fa) \leq \mu(\fa) \end{array}$$ are known. It is an interesting and long-standing problem to find out the cases giving equality. Thanks to the formal grade we give conditions in which the above inequalities become equalities.
A note on some top local cohomology modules
Majid Eghbali
Mathematics , 2012,
Abstract: Let $\fa$ be an ideal of a $d$-dimensional commutative Noetherian ring $R$. In this paper we give some information on some last non-zero local cohomology modules known as top local cohomology modules in particular, $H^{d-1}_{\fa}(R)$.
Top local cohomology, Matlis duality and tensor products
Majid Eghbali
Mathematics , 2013,
Abstract: Let $\fa$ be an ideal of a local ring $(R, \fm)$ with $d = \dim R.$ For $i > d$ the local cohomology module $H^i_{\fa}(R)$ vanishes. In the case that $H^d_{\fa}(R) \not= 0,$ at first we give a bound for $\depth D(H^d_{\fa}(R))$, where $d>2$ and $(R,\fm)$ is complete. More precisely we show $$\begin{array}{ll} \ \grade (\fb, D(H^d_{\fa} (R)))+\dim R/\fb \geq \depth (D(H^d_{\fa} (R))) \geq 2, \end{array}$$ where $\fb$ is an ideal of $R$ of dimension $\leq 2$ and D(-) denotes the Matlis duality functor. Later we give conditions that Cohen-Macaulayness of $D(H^d_{\fa}(R))$ fails, where $d \geq 3$. Finally, $H^d_{\fa}(R) \otimes_R H^d_{\fa}(R)$, $D(H^d_{\fa}(R)) \otimes_R D(H^d_{\fa}(R))$ and $H^d_{\fa}(R) \otimes_R D(H^d_{\fa}(R))$ are examined. In particular, we give the necessary and sufficient condition for Cohen-Macaulayness of $D(H^d_{\fa}(R)) \otimes_{R/Q} D(H^d_{\fa}(R))$, where $Q$ is a certain ideal of $R$.
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