Effect of Smoking on Retinal Thickness and Vascular Density in Thyroid Eye Disease

Mansooreh Jamshidian-Tehrani,Abolfazl Kasaei,Zahra Mahdizad,Masoud Aghsaei Fard,Mehdi Aminizade 대한안과학회 2021 Korean Journal of Ophthalmology Vol.35 No.5

Purpose: To evaluate the effect of smoking on retinal thickness and macular and peripapillary vascular density in thyroid eye disease (TED). Methods: In this cross-sectional study, subjects diagnosed with TED were analyzed in three groups: smokers, passive smokers, and non-smokers. Ganglion cell complex thickness, total retinal thickness, macular superficial vascular plexus densities, deep vascular plexus densities, optic nerve head, and radial peripapillary capillary density were measured in each group. Results: Twenty-two eyes (21.6%) of active smokers, 11 eyes (10.8%) of passive smokers, and 69 eyes (67.6%) of non-smokers constitute the study subjects. Twenty-one eyes (12.6%) had active status (clinical activity score ≥3), 77 eyes (46.1%) were neither active nor compressive, four eyes (2.4%) of two patients constituted the compressive group. Age and disease activity adjusted analysis was performed. Ganglion cell complex thickness of smokers was significantly higher than non-smokers in the inferior hemi-parafoveal sector (p = 0.04). Active smokers had significantly higher (p < 0.01) retinal thickness in all sectors compared to non-smokers, except the foveal sector. Smokers had lower superficial vessel density in the superior parafoveal sector compared to non-smokers (p = 0.04). Considering deep vessel densities between smokers and non-smokers, no significant difference was observed. Radial peripapillary capillary densities (significant difference was observed in the whole image and infranasal peripapillary sector), Macular vascular densities (significant difference was observed in parafoveal sectors), and optic nerve head (not reaching statistical significance level in any sectors) were highest in passive smokers. Conclusions: Smoking is associated with increased total retinal thickness. Macular vascular densities were not different between smokers and non-smokers in TED.

Probing Concept of Critical Thinking in Nursing Education in Iran: A Concept Analysis

Mansooreh Tajvidi,Shahrzad Ghiyasvandian,Mahvash Salsali 한국간호과학회 2014 Asian Nursing Research Vol.8 No.2

Purpose: Given the wide disagreement over the definition of critical thinking in different disciplines, defining and standardizing the concept according to the discipline of nursing is essential. Moreover, there is limited scientific evidence regarding critical thinking in the context of nursing in Iran. The aim of this study was to analyze and clarify the concept of critical thinking in nursing education in Iran. Methods: We employed the hybrid model to define the concept of critical thinking. The hybrid model has three interconnected phasesdthe theoretical phase, the fieldwork phase, and the final analytic phase. In the theoretical phase, we searched the online scientific databases (such as Elsevier, Wiley, CINAHL, Proquest, Ovid, and Springer as well as Iranian databases such as SID, Magiran, and Iranmedex). In the fieldwork phase, a purposive sample of 17 nursing faculties, PhD students, clinical instructors, and clinical nurses was recruited. Participants were interviewed by using an interview guide. In the analytical phase we compared the data from the theoretical and the fieldwork phases. Results: The concept of critical thinking had many different antecedents, attributes, and consequences. Antecedents, attributes, and consequences of critical thinking concept identified in the theoretical phase were in some ways different and in some way similar to antecedents, attributes, and consequences identified in the fieldwork phase. Finally critical thinking in nursing education in Iran was clarified. Conclusion: Critical thinking is a logical, situational, purposive, and outcome-oriented thinking process. It is an acquired and evolving ability which develops individually. Such thinking process could lead to the professional accountability, personal development, God's consent, conscience appeasement, and personality development.

The investigation of the potential of activated hard shell of apricot stones as gold adsorbents

Mansooreh Soleimani,Tahereh Kaghazchi 한국공업화학회 2008 Journal of Industrial and Engineering Chemistry Vol.14 No.1

Activated carbon is the most widely used adsorbent for the recovery of metal ions from dilute solutions. In this work the potential of activatedcarbon produced from hard shell of Iranian apricot stones for the gold recovery from electro-plating wastewater was investigated. The effect ofparameters such as doseof activated carbon, particle size ofactivated carbon, pH and agitationspeed of mixingon thegoldadsorption was studied.The results showed that under the optimum operating conditions, more than 98% of gold was adsorbed onto activated carbon after only 3 h. Inaddition, the adsorbed gold could be eluted from this carbon by improved stripping method. The process involves contact of gold laden activatedcarbon with a strong base at ambient temperatures followed by elution with an aqueous solution containing an organic solvent. It was found thatactivatedcarbonproducedfromhardshellofapricotstoneshavehighpotentialtobeusedinsteadofimportedcommercialactivatedcarbonsingoldadsorption processes.# 2007 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

On multi subspace-hypercyclic operators

Mansooreh Moosapoor 대한수학회 2020 대한수학회논문집 Vol.35 No.4

In this paper, we introduce and investigate multi subspace-hypercyclic operators and prove that multi-hypercyclic operators are \linebreak multi subspace-hypercyclic. We show that if $T$ is $M$-hypercyclic or multi $M$-hypercyclic, then $T^{n}$ is multi $M$-hypercyclic for any natural number $n$ and by using this result, make some examples of multi subspace-hypercyclic operators. We prove that multi $M$-hypercyclic operators have somewhere dense orbits in $M$. We show that analytic Toeplitz operators can not be multi subspace-hypercyclic. Also, we state a sufficient condition for coanalytic Toeplitz operators to be multi subspace-hypercyclic.

DISKCYCLIC C₀-SEMIGROUPS AND DISKCYCLICITY CRITERIA

Mansooreh Moosapoor 경남대학교 기초과학연구소 2022 Nonlinear Functional Analysis and Applications Vol.27 No.1

In this article, we prove that diskcyclic C₀-semigroups exist on any infinite- dimensional Banach space. We show that a C₀-semigroup (T_t)_{t≥0} satisfies the diskcyclicity criterion if and only if any of Tt’s satisfies the diskcyclicity criterion for operators. Moreover, we show that there are diskcyclic C₀-semigroups that do not satisfy the diskcyclicity criterion. Also, we state various criteria for diskcyclicity of C₀-semigrous based on dense sets and d- dense orbits.

ON MULTI SUBSPACE-HYPERCYCLIC OPERATORS

Moosapoor, Mansooreh Korean Mathematical Society 2020 대한수학회논문집 Vol.35 No.4

In this paper, we introduce and investigate multi subspace-hypercyclic operators and prove that multi-hypercyclic operators are multi subspace-hypercyclic. We show that if T is M-hypercyclic or multi M-hypercyclic, then Tⁿ is multi M-hypercyclic for any natural number n and by using this result, make some examples of multi subspace-hypercyclic operators. We prove that multi M-hypercyclic operators have somewhere dense orbits in M. We show that analytic Toeplitz operators can not be multi subspace-hypercyclic. Also, we state a sufficient condition for coanalytic Toeplitz operators to be multi subspace-hypercyclic.

Elimination of mercury by adsorption onto activated carbon prepared from the biomass material

Neda Asasian,Mansooreh Soleimani,Tahereh Kaghazchi 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.1

Following the previous work (Kaghazchi et al., 2010 [11]), dealing with applying a combination of two kinds of agricultural wastes to produce a new adsorbent, this study is dedicated to investigate the details of mercury adsorption process from aquatic medium by this adsorbent. So the Mix-ZC activated carbon (the sample prepared by chemical activation of a mixture of pistachio-nut shells and licorice residues impregnated with zinc chloride) was selected for doing a series of batch adsorption experiments on it. Equilibrium isotherms, such as Freundlich, Langmuir, Dubinin–Redushkevich and Temkin have been tested. Kinetic studies based on Lagergren first-order, pseudo-second-order rate expressions and intraparticle diffusion studies have been done. The mechanisms of mercury adsorption onto this adsorbent under the operating conditions were also studied.

Optimization of parameters for competitive adsorption of heavy metal ions (Pb+2, Ni+2, Cd+2) onto activated carbon

Mohammad Kavand,Mansooreh Soleimani,Tahereh Kaghazchi 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.4

This study investigates optimization of various competitive adsorption parameters for removal of Cd(II),Ni(II) and Pb(II) from aqueous solutions by commercial activated carbon (AC) using the Taguchi method. Adsorptionparameters such as initial metal concentration of each metal ion (C0, i), initial pH (pH0), adsorbent dosage (m) and contacttime (t) in batch technique were studied to observe their effects on the total adsorption capacity of metals onto activatedcarbon (qtot). The adsorbent dosage has been found to be the most significant parameter. Interactions between C0, Cd×C0, Ni, C0, Cd×C0, Pb and C0, Ni×C0, Pb have been considered for simultaneous metal ions adsorption. The optimum conditionfor adsorption of metal ions were obtained with C0, i=100 mg L−1, pH0=7, m=2 g L−1 and t=80min. Finally, experimentalresults showed that a multi-staged adsorptive treatment would be necessary to reach the minimal discharge standardsof metal ions in the effluent.

Optimum location of second outrigger in RC core walls subjected to NF earthquakes

Hamid Beiraghi,Mansooreh Hedayati 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.38 No.6

Seismic responses of RC core wall with two outriggers are investigated in this study. In the models analyzed here, one of the outriggers is fixed at the top of the building and the second is placed at different levels along the height of the system. Each of the systems resulting from the placement of the outrigger at different locations is designed according to the prescriptive codes. The location of the outrigger changes along the height. Linear design of all the structures is accomplished by using prescriptive codes. Buckling restrained braces (BRBs) are used in the outriggers and forward directivity near fault and far fault earthquake record sets are used at maximum considered earthquake (MCE) level. Results from nonlinear time history analysis demonstrate that BRB outriggers can change the seismic responses like force distribution and deformation demand of the RC core-walls over the height and lead to the new plastic hinge arrangement over the core-wall height. Plasticity extension in the RC core wall occurs at the base as well as adjacent to the outrigger levels. Considering the maximum inter-story drift ratio (IDR) demand as an engineering parameter, the best location for the second outrigger is at 0.75H, in which the maximum IDR at the region upper the second outrigger level is approximately equal to the corresponding value in the lower region.

Orbital Exenteration: A 23-year Report

abolfazl kasaee,mansooreh jamshidian-Tehrani,bahram eshraghy,kambiz ameli,shahbaz nekoozadeh,motahareh sadeghi 대한안과학회 2019 Korean Journal of Ophthalmology Vol.33 No.4

Purpose: Orbital exenteration is a psychologically and anatomically disfiguring procedure which indicated insome patients with malignant or progressive diseases of orbital and periorbital area. In this study, we reviewed176 patients that underwent orbital exenteration. Methods: This was a retrospective study of medical records from all patients who underwent orbital exenterationfrom March 1991 to March 2014 in oculoplastic department at an eye care center. Demographic data,diagnosis, site of primary involvement and technique of surgery were determined in patients. Results: One hundred seventy-six cases of orbital exenteration were included that had documented histopathology. The age of patients ranged from 1 to 91 years (mean age ± standard deviation, 55.43 ± 27 years). Ninety-seven (55.11%) males and 79 (44.88%) females were included. Fifteen different tumors were identified. Themost common indication was patients with basal cell carcinoma 49 (28%) followed by 41 (23.5%) squamouscell carcinomas, 35 (20%) retinoblastoma, and 13 (7%) adenoid cystic carcinomas. In total, adnexal malignancieswere the most common tumors, secondarily involving the orbit. Eyelids 89 (50.5%) and the globe 43 (24%)were the most frequent site of involvement. Three types of exenteration were performed, based on availabledata of 129 operation sheets, 46 (35.7%) subtotal, 62 (48.1%) total, and 21 (16.3%) cases of extensive exenterations. In total 97 cases were evaluated pathologically for perineural involvement, of which perineural invasionwas noted in 9 (7%) reports. Conclusions: Frequency of exenteration in our center has increased in past 3 years and the majority of caseswere eyelid basal cell carcinoma. Patient education considering periocular lesions can help in earlier diagnosisof malignant lesions and therefore reducing the number of exenteration.