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    Female labor participation in Iran: a structural model estimation

    , Article Journal of Economic Studies ; Volume 47, Issue 1 , 2020 , Pages 1-19 Farahzadi, S ; Rahmati, M ; Sharif University of Technology
    Emerald Group Publishing Ltd  2020
    Purpose: The purpose of this study is to determine why female labor force participation in Iran has been less than 20 percent. Design/methodology/approach: The authors estimate a structural dynamic matching model of female participation using individual panel data in Iran. The study incorporates many factors such as wage, child cost, education, spouse employment and job market search parameters. Findings: The study finds that gender discrimination in job finding has the biggest effect in reducing the rate of women's participation. If all market differences disappear, the female participation rate will increase by 12 percentage points to almost 27 percent, which is still much lower than that... 

    A novel variant in TLE6 is associated with embryonic developmental arrest (EDA) in familial female infertility

    , Article Scientific Reports ; Volume 12, Issue 1 , 2022 ; 20452322 (ISSN) Akbari, M ; Mohebi, M ; Berjis, K ; Ghahremani, A ; Modarresi, M. H ; Ghafouri Fard, S ; Sharif University of Technology
    Nature Research  2022
    This study aims to identify genetic causes of familial female infertility characterized by embryonic developmental arrest (EDA) and repeated implantation failure (RIF) with oocyte donation IVF cycle. We used Whole-exome sequencing and Sanger validation to find causative genes in an Iranian consanguineous family that had 3 infertile daughters, 4 fertile daughters, and 2 fertile sons. All patients in this consanguineous family exhibited typical manifestations of unexplained RIF and EDA. Genetic analysis identified a homozygous missense variant (c.G1054C:p.G352R) in exon 13 of the TLE6 gene that cosegregated with the EDA phenotype in an autosomal recessive pattern. Other members of the family,... 

    Evolution of costly signaling and partial cooperation

    , Article Scientific Reports ; Volume 9, Issue 1 , 2019 ; 20452322 (ISSN) Salahshour, M ; Sharif University of Technology
    Nature Publishing Group  2019
    Two seemingly unrelated, but fundamental challenges in evolutionary theory, are the evolution of costly signals and costly cooperative traits, both expected to reduce an individual’s fitness and diminish by natural selection. Here, by considering a well mixed population of individuals who produce signals and decide on their strategies in a game they play, based on the signals, we show that costly signals and costly cooperative strategies can co-evolve as a result of internal dynamics of the system. Costly signals evolve, despite their apparent cost, due to a favorable cooperative response they elicit. This favorable strategic response can be quantified in a fitness term which governs the... 

    Drift-diffusion explains response variability and capacity for tracking objects

    , Article Scientific Reports ; Volume 9, Issue 1 , 2019 ; 20452322 (ISSN) Daneshi, A ; Azarnoush, H ; Towhidkhah, F ; Gohari, A ; Ghazizadeh, A ; Sharif University of Technology
    Nature Publishing Group  2019
    Being able to track objects that surround us is key for planning actions in dynamic environments. However, rigorous cognitive models for tracking of one or more objects are currently lacking. In this study, we asked human subjects to judge the time to contact (TTC) a finish line for one or two objects that became invisible shortly after moving. We showed that the pattern of subject responses had an error variance best explained by an inverse Gaussian distribution and consistent with the output of a biased drift-diffusion model. Furthermore, we demonstrated that the pattern of errors made when tracking two objects showed a level of dependence that was consistent with subjects using a single... 

    Exploring stakeholders and their requirements in the process of home hemodialysis: A literature review

    , Article Seminars in Dialysis ; 2021 ; 08940959 (ISSN) Khan, I ; Pintelon, L ; Martin, H ; Khan, R. A ; Sharif University of Technology
    John Wiley and Sons Inc  2021
    Providing home hemodialysis (HHD) therapy is a complex process that not only requires the use of a complex technology but also involves a diverse group of stakeholders, and each stakeholder has their requirements and may not share a common interest. Bringing them together will require the alignment of their interests. A process management perspective can help to accomplish the alignment of their interests. To align their interests, it is crucial to identify interest groups and understand their interests. The main objective of this paper is to identify the stakeholders and represents their interests as a list of requirements in the HHD process. An extensive literature review has been carried... 

    Altered expression of SOCS genes periodontitis

    , Article BMC Oral Health ; Volume 22, Issue 1 , 2022 ; 14726831 (ISSN) Ghafouri Fard, S ; Gholami, L ; Sadeghpour, S ; Nazer, N ; Hussen, B. M ; Sayad, A ; Taheri, M ; Sharif University of Technology
    BioMed Central Ltd  2022
    Suppressor of cytokine signalling (SOCS) family comprises a group of proteins that impede JAK/STAT signalling, thus being involved in the pathogenesis of immune-related conditions. In the present work, we aimed at identification of the role of SOCS genes in the pathogenesis of periodontitis through evaluation of their expression levels both in the circulation and in the affected tissues of patients. Thus, we measured expression levels of SOCS1-3 and SOCS5 transcripts in the blood and gingival samples of patients with periodontitis in comparison with control samples obtained during dental crown lengthening. Expressions of SOCS1, SOCS2, SOCS3 and SOCS5 genes were similar between gingival... 

    Relationship between Fertility and Female Labor Participation in Iran

    , M.Sc. Thesis Sharif University of Technology Asadi, Ghadir (Author) ; Keshavarz Haddad, Gholamreza (Supervisor)
    Despite the fact that total fertility rate has a drastic decrease from 6.6 in 1980 to 1.8 childeren in 2008 and their education was highly growing in the last two decades, their participation in labor market is stillrelatively low(with maximum rate of 17.5 in 2007). Making use of the Iranian Household Expenditure and Income Survey(HEIS) and yearly labor market surveys (1984-2009), we intend to investigate the interaction between fertility(FER) and female labor participation(FLP) in Iran, for both the population with ages of 10-64 and 18-30. We use simultaneousequations by GMM to estimate the system of equation. Our findings show that the sign of FER’s determinants are as expected, but FLP... 

    Dysregulation of lncRNAs in circulation of patients with periodontitis: results of a pilot study

    , Article BMC Oral Health ; Volume 21, Issue 1 , 2021 ; 14726831 (ISSN) Ghafouri Fard, S ; Gholami, L ; Badrlou, E ; Sadeghpour, S ; Nazer, N ; Shadnoush, M ; Sayad, A ; Taheri, M ; Sharif University of Technology
    BioMed Central Ltd  2021
    Background: Periodontitis is a chronic inflammatory disorder with a complex etiology. Long non-coding RNAs (lncRNAs) have been shown to affect pathoetiology of periodontitis. We aimed at identification of expression of five lncRNAs, namely Linc0116, Linc00667, CDK6-AS1, FENDRR and DIRC3 in the circulation and gingival tissues of these patients compared with healthy controls. Methods: In a pilot case–control study, we compared expressions of Linc0116, Linc00667, CDK6-AS1, FENDRR and DIRC3 lncRNAs between blood and tissue samples of patients with periodontitis and healthy controls using real time quantitative PCR technique. The present work was performed on samples got from 26 patients with... 

    The Hidden Side of Coin: What Self Leadership Strategies Are Applied by Successful Iranian Women Entrepreneurs?

    , M.Sc. Thesis Sharif University of Technology Mirhosseini, Minoo (Author) ; Alavi, Babak (Supervisor)
    Women are going to play more important roles in the economy of most countries including Iran. Hence, since the number of entrepreneurs among women is increasing, identifying characteristics and other factors that cause these group to be successful, is a critical issue. Studies show that entrepreneurs, especially women entrepreneurs, face numerous problems in their career. These problems are especially more demanding in societies with unique cultural attributes. Therefore, applying personal and managerial solutions in order to overcome these problems are necessary. On the other hand, researchers believe that one of the most effective and beneficial concepts helping entrepreneurs in their... 

    The influence of the female reproductive tract and sperm features on the design of microfluidic sperm-sorting devices

    , Article Journal of Assisted Reproduction and Genetics ; Volume 39, Issue 1 , 2022 , Pages 19-36 ; 10580468 (ISSN) Ahmadkhani, N ; Hosseini, M ; Saadatmand, M ; Abbaspourrad, A ; Sharif University of Technology
    Springer  2022
    Although medical advancements have successfully helped a lot of couples with their infertility by assisted reproductive technologies (ART), sperm selection, a crucial stage in ART, has remained challenging. Therefore, we aimed to investigate novel sperm separation methods, specifically microfluidic systems, as they do sperm selection based on sperm and/or the female reproductive tract (FRT) features without inflicting any damage to the selected sperm during the process. In this review, after an exhaustive studying of FRT features, which can implement by microfluidics devices, the focus was centered on sperm selection and investigation devices. During this study, we tried not to only point to... 

    The effects of a short-term memory task on postural control of stroke patients

    , Article Topics in Stroke Rehabilitation ; Volume 22, Issue 5 , 2015 , Pages 335-341 ; 10749357 (ISSN) Mehdizadeh, H ; Taghizadeh, G ; Ghomashchi, H ; Parnianpour, M ; Khalaf, K ; Salehi, R ; Esteki, A ; Ebrahimi, I ; Sangelaji, B ; Sharif University of Technology
    Taylor and Francis Ltd  2015
    Background: Many studies have been conducted on the changes in the balance capabilities of stroke patients. However, results regarding the effects of dual-task activities on postural control in these patients have been variable. Objective: To evaluate the effects of a short-term memory task on the sway characteristics of stroke patients. Method: Center of pressure (COP) fluctuations were measured in three levels of postural difficulty (rigid surface with closed and open eyes and foamsurface with closed eyes), aswell as two levels of cognitive difficulty (easy and difficult). COP parameters included mean velocity, standard deviation of velocity in both medial-lateral (M.L) and... 

    Dysregulation of lncRNAs in autoimmune neuropathies

    , Article Scientific Reports ; Volume 11, Issue 1 , 2021 ; 20452322 (ISSN) Gholipour, M ; Taheri, M ; Mehvari Habibabadi, J ; Nazer, N ; Sayad, A ; Ghafouri Fard, S ; Sharif University of Technology
    Nature Research  2021
    Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and Guillain-Barré syndrome (GBS) are inflammatory neuropathies with different clinical courses but similar underlying mechanisms. Long non-coding RNAs (lncRNAs) might affect pathogenesis of these conditions. In the current project, we have selected HULC, PVT1, MEG3, SPRY4-IT1, LINC-ROR and DSCAM-AS1 lncRNAs to appraise their transcript levels in the circulation of CIDP and GBS cases versus controls. Expression of HULC was higher in CIDP patients compared with healthy persons (Ratio of mean expression (RME) = 7.62, SE = 0.72, P < 0.001). While expression of this lncRNA was not different between female CIDP cases and female... 

    Woman-Headed Household and Household Welfare An Emprical Study for Iran

    , M.Sc. Thesis Sharif University of Technology Khoram, Azar (Author) ; Suri, Davood (Supervisor)
    This research aimed to investigate the relationship between household poverty and the gender of the head in the Iranian households. The self-reported gender of the head of household (FHH), underestimates the rate of poverty in female- head households (FHH). The self-reported gender of the head of household considers, conventionally, a family as male-head, even if the man of the family is incapable of making money. In much of these families the wife is the sole income holder even though she is not recognized as the head. In this study, a definition for household headship is introduced, which considers head of household the one who provides more than 50% of household income. Using household’s... 

    Individual Married Female Labor Supply: An Application of Parametric & Non-Parametric Econometric Analysis

    , M.Sc. Thesis Sharif University of Technology Bagheri Ghanbarabadi, Morteza (Author) ; Keshavarz Haddad, Gholamreza (Supervisor)
    Iranian female participation rate in the labor market of Iran in the recent decade shows a raising trend which amounted from 8% in 1999 to 18% in 2005. Using Parametric and Non-parametric econometrics Methods, in this research we aim to study the behavior of individual female labor supply. Our dataset consist of the annually budget survey of 2006 which is reported by statistical center of Iran. Our findings from parametric analysis show that the number of less than 6-years old children, non-labor income, husband’s income and geographic area (rural or urban district) are the main determinants of women’s participation in the labor market, and they affect negatively probability of the market... 

    The roles of perceived task interdependence and group members' interdependence in the development of collective efficacy in university student group contexts

    , Article British Journal of Educational Psychology ; Volume 78, Issue 3 , September , 2008 , Pages 375-393 ; 00070998 (ISSN) Alavi, S. B ; McCormick, J ; Sharif University of Technology
    Background. Although the relationship between collective efficacy and group performance has been frequently investigated, a few studies have investigated the development of collective efficacy. Aim. This paper proposes some determinants of collective efficacy in small university groups. Group level hypotheses and research questions relating collective efficacy to collective cognition activities, task interdependence, self-efficacy for group work, and collective orientation were posited. Sample. The sample comprised 145 university students in 40 work-groups. Method. A two-phase longitudinal design was employed in the context of university student groups. All groups were required to perform... 

    A new 3D, microfluidic-oriented, multi-functional, and highly stretchable soft wearable sensor

    , Article Scientific Reports ; Volume 12, Issue 1 , 2022 ; 20452322 (ISSN) Annabestani, M ; Esmaeili Dokht, P ; Olyanasab, A ; Orouji, N ; Alipour, Z ; Sayad, M. H ; Rajabi, K ; Mazzolai, B ; Fardmanesh, M ; Sharif University of Technology
    Nature Research  2022
    Increasing demand for wearable devices has resulted in the development of soft sensors; however, an excellent soft sensor for measuring stretch, twist, and pressure simultaneously has not been proposed yet. This paper presents a novel, fully 3D, microfluidic-oriented, gel-based, and highly stretchable resistive soft sensor. The proposed sensor is multi-functional and could be used to measure stretch, twist, and pressure, which is the potential of using a fully 3D structure in the sensor. Unlike previous methods, in which almost all of them used EGaIn as the conductive material, in this case, we used a low-cost, safe (biocompatible), and ubiquitous conductive gel instead. To show the... 

    The effects of smoking on female sexual dysfunction: a systematic review and meta-analysis

    , Article Archives of Women's Mental Health ; Volume 25, Issue 6 , 2022 , Pages 1021-1027 ; 14341816 (ISSN) Salari, N ; Hasheminezhad, R ; Abdolmaleki, A ; Kiaei, A ; Shohaimi, S ; Akbari, H ; Nankali, A ; Mohammadi, M ; Sharif University of Technology
    Springer  2022
    The increased number of female smokers is considered a global health challenge in recent years. One of the detrimental effects of smoking is sexual hormone fluctuation causing female sexual dysfunction (FSD). This systematic review and meta-analysis aimed to investigate the effects of smoking leading to FSD. Electronic databases (PubMed, Scopus, Web of Science, Embase, Science Direct, and Google Scholar) were hired for systematic searching. Until June 2022, whole qualified studies reporting the consequences of smoking on FSD were gathered for data analysis based on the random effects model (CMA software, v.2). Study heterogeneity and publication bias were also assessed using I2 index and... 

    Gender Ratio and Intra-Household Collective Decision Process:Evidence from Iranian Household Labor Supply

    , M.Sc. Thesis Sharif University of Technology Borhani, Fatemeh (Author) ; Keshavarz Haddad, Gholamreza (Supervisor)
    This paper provides and empirical investigation of individual labor supply of Iranian spouses in a collective framework in which gender ratio and plays a central role in the decision process in household. The data set is taken from the socioeconomic characteristics of panel survey over 2001-2004 and ten yearly headcount of Iran. We have conducted the parameters estimation and hypothesis testing by Semykina, A. and Wooldridge, J.M., (2005) generalized procedure of sample selection in panel data model. Our findings explore that females’ labor supply is affected significantly and strongly by the gender ratio, (total number of males over the females in provinces, both in urban and rural areas).... 

    Child Effect on Female Employment: Evidence from Iran with a Structural Approach

    , M.Sc. Thesis Sharif University of Technology Hasheminasab, Jalal (Author) ; Keshavarz Haddad, Gholamreza (Supervisor) ; Moeini, Safoura (Supervisor)
    This research answers two questions: First, what effect does the increase in the number of children have on women's employment? Second, what is the magnitude of the effect of increasing the number of children on the potential employment rate of Iranian women? To address the first question, we use Heckman's reduced form regression along with a structural model of female labor supply. We use the Simulated Method Moments (SMM) to estimate the structural equations. Our data for the empirical analysis are taken from the Iranian Households’ Income and Expenditures Surveys in urban areas over the years 1990 to 2020. We use the estimated model to measure the potential increase in female employment... 

    Design and evaluation of vibratory shoe on balance control for elderly subjects: technical note

    , Article Disability and Rehabilitation: Assistive Technology ; Volume 13, Issue 2 , 2018 , Pages 173-177 ; 17483107 (ISSN) Aboutorabi, A ; Arazpour, M ; Farahmand, F ; Bahramizadeh, M ; Fadayevatan, R ; Abdollahi, E ; Sharif University of Technology
    Taylor and Francis Ltd  2018
    Background and Aim: Aging often results in a decline in somatosensory function, and such changes are associated with diminished motor performance. Input noise can enhance sensory and motor function through a mechanism known as stochastic resonance (SR). This paper describes the development and testing of a new vibrating shoe to possibly assist the elderly patients in controlling their balance and decreasing their falling risks. Technique: The new vibrating shoe was evaluated to ascertain its ability to generate appropriate random and nonlinear vibrations. The vibratory shoe performance in two young subjects with decreased foot sensation and two elderly subjects in different static and...