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Search Results: 1 - 10 of 1033 matches for " Aida Moeini "
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Clinical Finding and Thyroid Function in Women with Struma Ovarii
Ali Hosseini,Aida Moeini
Journal of Cancer Research , 2013, DOI: 10.1155/2013/717584
Abstract: Background. Struma ovarii (SO) is a variant of dermoid tumors which completely or mainly composed of thyroid tissues. Objective. We report our experience in the diagnosis and thyroid function of patients with SO in our hospital and also review the management and treatment option of this tumor. Materials and Methods. Between 2000 and 2012, 15 consecutive females with SO who were presented to our hospital were fully assessed. All women had histologically confirmed struma ovarii. The medical records of all patients including presenting symptoms, CT scan finding, and hormonal levels were collected for final analysis. Results. Average patient age was 36.6 years (ranging from 21 to 69). The mean ± SDs of serum TSH, T4, and T3 were ?mUI/mL, ?ng/dL, and ?ng/dL, respectively. The value of TSH was lower than normal value in 26.7%. Also, antithyroglobulin and anti-TPO were positive in 2 and one cases, respectively. Conclusion. Based on our data, it is more likely to see a disturbance in serum values of thyroid function test in women with SO. 1. Introduction Struma ovarii (SO) is a variant of dermoid tumors of the ovary in which thyroid tissue components is the major constituent [1]. It is of germ cell origin and accounts for about 2% of all ovarian germ cell tumors [2]. This neoplasm is predominantly found in women between the ages of 40 and 60 years. They are composed of mature thyroid tissue—which mostly (approximately 95%) has a benign nature—occupying more than 50% of the mass [3–5]. Thyroid tissue in the teratoma can exhibit all histological and pathological patterns of normal thyroid epithelium. In major proportion of patients, this neoplasm is nonfunctional and only 5% to 15% reveal hyperthyroidism. Immunohistochemical staining for thyroglobulin may be required to identify the cells’ origin. Most of these tumors are asymptomatic, and diagnosed after surgery of a pelvic mass [6, 7]. It is also difficult to distinguish between struma ovarii and dermoid cysts on the basis of their sonographic appearance [5]. Because of the rarity of the tumor, only a few reports with detailed data on thyroid function of the patient have been published. We report our experience in the diagnosis and thyroid function of patients with SO in our hospital and also review the management and treatment option of this tumor. 2. Materials and Methods Between 2000 and 2012, 15 consecutive females with SOs who were presented to our hospital were fully assessed. All women had histologically confirmed struma ovarii. All patients provided an informed written consent; the study was approved by
Epitheliod Leiomyoma of the Bladder: An Unusual Case of Irritative and Obstructive Voiding Symptoms
Ali Kaviani,Abdollah Razi,Hooman Mokhtarpour,Mohammad Mohsen Mazloomfard,Aida Moeini,Hooman Bahrami-Motlagh
Case Reports in Urology , 2012, DOI: 10.1155/2012/759150
Abstract: Epitheloid leiomyoma is a very rare subtype of benign mesothelial tumors of the bladder. A 46-year-old female patient presented to our hospital with prolonged dysuria, frequency, and recurrent urinary tract infections. Bimanual examination revealed a mobile, round mass in bladder. There was a round hyperdense intravesical mass near bladder neck in computed tomography (CT) scan that was compatible with her magnetic resonance imaging (MRI). A well defined 3×4 centimeter mass was seen in superolateral part of bladder neck during cystoscopy. The patient underwent partial cystectomy and histopathologic findings confirmed the diagnosis of epithelioid leiomyoma. The patient’s followup was uneventful in a period of 2 years. Size and anatomic location of this tumor were major factors that affect on treatment.
Epitheliod Leiomyoma of the Bladder: An Unusual Case of Irritative and Obstructive Voiding Symptoms
Ali Kaviani,Abdollah Razi,Hooman Mokhtarpour,Mohammad Mohsen Mazloomfard,Aida Moeini,Hooman Bahrami-Motlagh
Case Reports in Urology , 2012, DOI: 10.1155/2012/759150
Abstract: Epitheloid leiomyoma is a very rare subtype of benign mesothelial tumors of the bladder. A 46-year-old female patient presented to our hospital with prolonged dysuria, frequency, and recurrent urinary tract infections. Bimanual examination revealed a mobile, round mass in bladder. There was a round hyperdense intravesical mass near bladder neck in computed tomography (CT) scan that was compatible with her magnetic resonance imaging (MRI). A well defined centimeter mass was seen in superolateral part of bladder neck during cystoscopy. The patient underwent partial cystectomy and histopathologic findings confirmed the diagnosis of epithelioid leiomyoma. The patient’s followup was uneventful in a period of 2 years. Size and anatomic location of this tumor were major factors that affect on treatment. 1. Introduction Benign mesothelial tumors are rare cause of bladder neoplasms [1, 2]. Leiomyoma as a benign mesothelial tumor consists of four different subtypes and its epitheloid subtype is a very rare ones. This benign disorder results in irritative and obstructive urinary symptoms or hematuria [3–5]. We report a case of bladder epitheloid leiomyoma presenting with irritative symptoms and cystoscopic appearance of a well-defined mass in bladder which is a rare finding even in uterus [6]. 2. Case Report A 46-years-old woman presented to our hospital with complaining of dysuria, frequency, and recurrent urinary tract infections from one year ago. She had no hematuria, suprapubic pain, or family history of such problems. She had history of hysterectomy three years before this admission due to uterine leiomyoma. Physical examination revealed a mobile, round mass in bimanual examination. Abdominal ultrasonography revealed a round mass measuring 4 × 5?cm (Figure 1). There was no hydronephrosis in both kidneys. There was a round hyperdense intravesical mass near bladder neck in CT scan (Figure 2). The mass was intramural in MR imaging and showed intermediate signal intensity on T1-weighted images (Figure 3). A well defined 3 × 4 centimeter mass was seen in superolateral part of bladder neck during cystoscopy. There was no any involvement of ureteral orifices. Due to huge size of the mass and its proximity to ureteral orifice, trans-urethral bladder resection was not planned for patient. Figure 1: A heteroechoic round mass was revealed in ultrasonography. Figure 2: An intravesical mass near bladder neck with hyperdensity in CT scan of patient. Figure 3: A well-defined 3 × 4 centimeter intramural mass was shown in MRI. She underwent exploratory laparotomy with low
Calculation of Thermal Pressure Coefficient of Dense C15H32, C17H36, C18H38 and C19H40 Using pVT Data  [PDF]
Vahid Moeini, Abol Ghasem Mahdianfar
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.311219
Abstract: The thermal pressure coefficients in liquid n-Pentadecane (C15), n-Heptadecane (C17), n-octadecane (C18) and n-nonadecane (C19) was measured using pVT data. The measurements were carried out at pressures up to 150 MPa in the temperature range from 293 to 383 K. The experimental results have been used to evaluate various thermophysical properties such as thermal pressure coefficients up to 150 MPa with the use of density and temperature data at various pressures. New parameters of the linear isotherm regularity, the so-called LIR equation of state, are used to calculate of thermal pressure coefficients of n-Pentadecane (C15), n-Heptadecane (C17), n-octadecane (C18) and n-nonadecane (C19) dense fluids. In this paper, temperature dependency of linear isotherm regularity parameters in the form of a first order has been developed to second and third order and their temperature derivatives of new parameters are used to calculate thermal pressure coefficients. The resulting model predicts accurately thermal pressure coefficients from the lower density limit at the Boyle density at the from triple temperature up to about double the Boyle temperature. The upper density limit appears to be reached at 1.4 times the Boyle density. These problems have led us to try to establish a function for the accurate calculation of the thermal pressure coefficients based on the linear isotherm regularity theory for different fluids.
Identifying Needs: A Missing Part in Teacher Training Programs
Hosein Moeini
Seminar.net , 2008,
Abstract: Diverse compositions of student populations, changing paradigms in teaching and learning, and changing expectations about the quality of education occur in every society at an unexpected rate. In the absence of well designed professional development programs, teachers have been expected to learn how to improve their teaching on their own, learn from trial and error, and individually seek the required professional development. In the new educational era, the trial and error teaching, and take it or leave it professional development programs cannot be accepted anymore. Teacher training is more than the matter of only mastery of certain practical knowledge, pedagogical skills, and techniques. It has to concern teachers’ own perception about the fields in which they don’t feel knowledgeable. This article is a theoretical study intended to give an insight into teachers’ training, their professional development, importance of needs analysis, and integration of needs analysis and information and communication technology in teacher preparation programs. It emphasizes that information and communication technology can enhance teachers’ learning and their professional developments by giving opportunities to initiate new ideas through their training programs.
Calculation of Thermal Pressure Coefficient of Lithium Fluid by Data
Vahid Moeini
ISRN Physical Chemistry , 2012, DOI: 10.5402/2012/724230
Abstract:
A Continuous Optimization Approach for the Financial Portfolio Selection under Discrete Asset Choice Constraints
Mahdi Moeini
Computer Science , 2014,
Abstract: In this paper we consider a generalization of the Markowitz's Mean-Variance model under linear transaction costs and cardinality constraints. The cardinality constraints are used to limit the number of assets in the optimal portfolio. The generalized model is formulated as a mixed integer quadratic programming (MIP) problem. The purpose of this paper is to investigate a continuous approach based on difference of convex functions (DC) programming for solving the MIP model. The preliminary comparative results of the proposed approach versus CPLEX are presented.
Ovariectomy at 3 or 10 weeks of age does not affect the ventilatory response to hypoxia in adult rats  [PDF]
Aida Bairam
Open Journal of Molecular and Integrative Physiology (OJMIP) , 2012, DOI: 10.4236/ojmip.2012.23013
Abstract: Although an ovariectomy is the routine approach used to study the role of ovarian hormones on respiratory control, the results have often been contradictory. We tested the hypothesis that the ventilatory response to hypoxia is modified by the age at which the ovariectomy is performed. Female rats were ovariectomized either atan early (3 weeks old, i.e., prepubertal) or late (10 weeks old, i.e., adult) stage, and ventilation was then assessed at 12 weeks of age using whole-body plethysmography. The control group included sham-operated rats that had undergone the same surgical procedure but were not ovariectomized. Independent of the age at which surgery was performed, ovariectomy significantly decreased circulating progesterone and 17-b-estradiol levels without re-ducing them below their detection threshold. Despite that decrease, there was no difference in baseline minute ventilation or in the ventilatory response to hypoxia (FiO2 = 12%, 20 min; expressed as the percentage of increase from baseline) between ovariectomized and shamoperated rats. These results suggest that ovariectomy at either a young or at an adult age is insufficient to completely suppress circulating hormones and disrupt the regulation of ventilation.
Impact of Islanding on Governor Signal of Distributed Resources  [PDF]
Mahdi Ghadiri, Ali Moeini, Hossein Yassami
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2011, DOI: 10.4236/jemaa.2011.32010
Abstract: Technical and economical impacts of distributed resources have encouraged big industry managers and distribution systems’ owners to utilize small type of electric generations. One important preventive issue to develop these units is islanding situation. Expert diagnosis system is needed to distinguish network cut off from normal occurrences. It should detect islanding in time to disconnect the unit and prevent any additional failures in equipment. An important part of synchronous generator is automatic load-frequency controller (ALFC). This controller is designed properly to respond to load variations and to fix frequency at constant value when working alone as an islanding system and to control output power when operating in parallel with the main. In this paper, a new approach based on monitoring ALFC re-sponse with regard to input signal to governor is introduced. Numbers of initial crossing value are introduced as an index for islanding detection. Simulation results show that input signal to governor has different characteristics in common disturbances.
Bacteria – Milk Quality Concern and Effects of Different Preparation Methods
Moeini MM,Sanjabi MR
Acta Veterinaria Scandinavica , 2003, DOI: 10.1186/1751-0147-44-s1-p91
Abstract:
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