نتایج جستجو برای: syber space
تعداد نتایج: 494337 فیلتر نتایج به سال:
in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...
In October 1996 the European Association for the Study of Science and Technology (EASST) and the Society for the Social Studies of Science (SSSS) organized a joint international conference "Signatures of Knowledge Societies" in Bielefeld. At this conference four talks were given by members of the interdisciplinary research project on the "Social History of Informatics". In this volume slightly ...
Context. Classical novae (CNe) have recently been reported to represent the major class of supersoft X-ray sources (SSSs) in the central region of our neighbour galaxy M 31. Aims. We carried out a dedicated monitoring of the M 31 central region with XMM-Newton and Chandra in order to find SSS counterparts of CNe, determine the duration of their SSS phase and derive physical outburst parameters....
It is known that for any general access structure, a secret sharing scheme (SSS) can be constructed from an (m,m)-threshold scheme by using the so-called cumulative map or from a (t,m)threshold SSS by a modified cumulative map. However, such constructed SSSs are not efficient generally. In this paper, we propose a new method to construct a SSS from a (t,m)-threshold scheme for any given general...
Purpose: The aim of this study was to determine the effects Echinacoside on cell proliferation, invasion and mRNA expression changes invasion-related genes in PC3 androgen-independent prostate cancer cells.
 Material Methods: effect proliferation cells determined by XTT method. Anti-invasive efficacy achieved using transwell chamber. Total RNA isolation performed Trizol cDNA subsequently s...
in this article, we have focused one some basic and productive information about the properties of spectrum and singular values related to compact operators which are ideals in a c*-algebra of bounded operators. considering a two-sided connection between the family of symmetric gauge functions on sequence of singular values of compact operators and symmetric norms on finite dimensional ope...
اسانس گیاهان (خشک شده در سایه)، tanacetum tenuisectum , tanacetum polycephalum به دو روش: 1- تقطیر با آب 2- برای اولین بار به روش میکرواستخراج فاز جامد در فضای فوقانی گرفته شد و به روش gc/ms مورد آنالیز و شناسایی واقع گردید. عمده ترکیبات اسانس سرشاخه های گلدار گیاه (tanacetum polycephalum) hydrodistillation % compounds 12.07 camphor 10.66 1, 8- cineole 9.57 chrysanthenyl acetate – t...
let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...
مقدمه: سرطان مری، ششمین سرطان منجر به مرگ در دنیا می باشد. اگر چه بروز این بیماری در سه دهه ی گذشته در ایران رو به کاهش بوده است، اما همچنان ششمین سرطان شایع در کشور می باشد. ژن tox3 به خانواده ای بزرگ و متنوع از پروتئین های hmg-box تعلق دارد که روی کروموزوم 16q12 قرار گرفته است. مطالعه ی حاضر با هدف مقایسه ی بیان ژن tox3 در بافت پارافینه ی سرطانی و غیر توموری مری انجام شد. روش ها: این مطالعه ،...
introduction: one of the most common problems we confront in orthodontic therapy is periodontal diseases. initial factor which causes these diseases is colonization of anaerobic microorganisms in subgingival plaque. technically, local environmental changes related to orthodontic band and brackets may influence the bacterial species in periodontal plaque. however, it seems necessary to assess va...
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