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shamsipour--nasrin
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A priority of Logic
, M.Sc. Thesis Sharif University of Technology ; Nasrin, Mehdi (Supervisor)
Abstract
Hartry Field argues that meaning-besed approaches to explaining the apriority of certain propositions fail to succeed in their endeavour. He suggests that adoting what one cals a non-factualist view of justification itself removes the mystery of the apriority of such propositions, and sketches what such a view of justification involves. A priori justification is often thought mysterious or out of keeping with a naturalistic view of the world; strong forms of priori justification that involve empirical indefeasibility are often thought especially mysterious. While this is no doubt correct for excessive claims of a priority – for instance, claims to prori acces to features of the physical...
Incommensurability Problems: Feyerabend’s Linguistic Solution
,
M.Sc. Thesis
Sharif University of Technology
;
Nasrin, Mahdi
(Supervisor)
A new homologous series of linear aliphatic unsaturated hydroxypolyesters a polyol soft segments for polyurethanes: Synthesis and characterization [electronic resource]
, Article Journal of Applied Polymer Science ; Volume 68, Issue 2, pages 173–183, 11 April 1998 ; Rezai, Nasrin ; Zohurian, M. J ; Sharif University of Technology
Abstract
Synthesis and characterization of a new series of low molecular weight (MW = 500–3000) OH-terminated linear aliphatic unsaturated polyesters based on cis-2-butene-1,4-diol and oxalic to sebacic acid were investigated. Direct polycondensation and transesterification methods were used for the syntheses. The latter was recognized to be the preferable method due to its lower reaction temperature and time, lower diol/diacid ratio, absence of decarboxylation, and formation of a product with low polydispersity (Mw/Mn = 1.3–2.7). Elemental analysis, GPC, FTIR, 1H-NMR, DSC, and WAXD were used for the investigations. A segmented polyurethane based on poly (cis-2-butylene adipate) glycol was also...
Semantic Externalist Answers to Epistemic Skepticism
, M.Sc. Thesis Sharif University of Technology ; Nasrin, Mehdi (Supervisor)
Abstract
As Davidson says, "Rorty sees the history of Western philosophy as a confused and victorless battle between unintelligible skepticism and lame attempts to answer it." Therefore we can say that the core issue of Epistemology, in various ages of history of philosophy, is the problem of skepticism. Semantic externalism according to some contemporary philosophers, like Hilary Putnam, Anthony Brueckner and Donald Davidson, gives various answers to skeptical arguments. On the other hand, skepticism also can be a challenge for semantic externalism. In this thesis, I have attempted to draw a scheme to clarify the status of these issues with regard to each other
Representationalism, Inverted Earth, and Swampman
, M.Sc. Thesis Sharif University of Technology ; Masrour, Farid (Supervisor) ; Nasrin, Mehdi (Supervisor)
Abstract
My dissertation includes four chapters; three introductory chapters and a final conclusion. The first chpter is a comprehensive introduction to the problem of consciousness. The next chapter is allocated to representationalism, especially Michael Tye's PANIC theory, as a solution to the hard problem of consciousness and related phenomena. The third chapter is a brife look at causal theories of mental content. And the last chapter contains my arguments agaisnt Tye's theory. Apparently, mental states are of two categories; some mental states have representational content and some other have phenomenal aspect; there is something it is like to undergo latter states. Representationalism holds...
The Effects of Language and Pragmatic Identities on the Interlanguage Pragmatic Competence of EFL Learners
, M.Sc. Thesis Sharif University of Technology ; Tajeddin, Ziaoddin (Supervisor) ; Alemi, Minoo (Co-Advisor)
Abstract
Identity and language are two interrelated concepts which can affect and control individuals' performance in learning another language. A person with L1 identity is able to make and comprehend pragmatic performance based on background information about the L1 context. The ability to comprehend without difficulty or conscious awareness of details of the context is due to the bilateral roles of identity and culture (Kasper, 2010). To shed light on pragmatic identity and language identity, this study was conducted on relationship between second language, pragmatic identity and their interactions on pragmatic competence of Iranian EFL learners. As many as 120 participants took part in this...
Properties of Radiation Induced LDPE/EVA Nanocomposits
, M.Sc. Thesis Sharif University of Technology ; Shojaei, Akbar (Supervisor) ; Sheikh, Nasrin (Supervisor)
Abstract
Polyethylene (PE) is used as an insulation material for wires and cables because of its excellent electrical properties. For such application, it can be exposed to the high energy irradiation such as gamma ray and electron beam (EB), making possible crosslinking of the PE. Most of the properties of PE are improved greatly after irradiation, but it was harden and split easily. Due to the flexibility of EVA, depending on the vinyl acetate content, it can improve the toughness of the LDPE significantly upon addition to this polymer. As a result, radiation induced LDPE/EVA blend has been a good candidate for the wire and cable insulation. Also, upon addition of a few amount of OC, different...
Holism of Duhem and Quine
, M.Sc. Thesis Sharif University of Technology ; Nasrin, Mehdi (Supervisor) ; Sheykh Rezaee, Hossein (Co-Advisor)
Abstract
In this dissertation, the thesis of Duhem-Quine holism will be intoduced and its similarity and dissimilarity in epistemolical webs of Duhem and Quine will be enumerated and criticisms that is taken to this thesis will be examined. In chapter 1 and 2, the fundamental characteristics of Duhem and Quine viewpoints will be introduced in sequence. This chapter is introduction to more accurate understanding of holism each of them and better Comparison together. In chapter 3, we will introduce their holism and we’ll see what the results of their holism in falsification and confirmation of different Hypotheses are. In chapter 4, we will discuss about discrepancy between their viewpoints and we...
Experimental evaluation on the effect of biomechanical features on human body stiffness
, Article Proceedings of the International Congress on Sound and Vibration ; 2023 ; 23293675 (ISSN); 978-801103423-8 (ISBN) ; Aziminia, M ; Emamian, A ; Shamsipour Dehkordi, P ; Rajabpour Sani, Z ; Carletti E ; Sharif University of Technology
Society of Acoustics
2023
Abstract
Human body stiffness plays an important role in whole body vibration analysis and also athletic performance and motor control. In recent years researchers focused on calculating lower-extremity stiffness for better monitoring vibration of whole body and also improving athletic performance and decreasing their injuries. Lower limb power, stiffness and muscular strength are often obtained from maximal vertical jump which is an important motor skill in physical activities. The stiffness can be calculated by vertical reaction force divided by vertical movement of mass centre. During running and jumping, legs can be modelled as a spring with the body mass sitting at the top. With regard to the...
Short-term associations between daily mortality and ambient particulate matter, nitrogen dioxide, and the air quality index in a Middle Eastern megacity
, Article Environmental Pollution ; Volume 254 , 2019 ; 02697491 (ISSN) ; Trang Nhung, N. T ; Schindler, C ; Yunesian, M ; Hosseini, V ; Shamsipour, M ; Hassanvand, M. S ; Mohammadi, Y ; Farzadfar, F ; Vicedo Cabrera, A. M ; Schwartz, J ; Henderson, S. B ; Künzli, N ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
There is limited evidence for short-term association between mortality and ambient air pollution in the Middle East and no study has evaluated exposure windows of about a month prior to death. We investigated all-cause non-accidental daily mortality and its association with fine particulate matter (PM2.5), nitrogen dioxide (NO2), and the Air Quality Index (AQI) from March 2011 through March 2014 in the megacity of Tehran, Iran. Generalized additive quasi-Poisson models were used within a distributed lag linear modeling framework to estimate the cumulative effects of PM2.5, NO2, and the AQI up to a lag of 45 days. We further conducted multi-pollutant models and also stratified the analyses by...