نتایج جستجو برای: semi pi property
تعداد نتایج: 340896 فیلتر نتایج به سال:
This paper reports the formation of an organogel of an asymmetric bisphenazine through the growth of one-dimensional nanofibers via a coopertive interplay of pi-pi interaction, hydrogen bonding, and van der Waals interaction and the colorimetric acid sensing property of the nanofibers.
Abstract We study subfields of quotient division algebras of domains of finite GK dimension and introduce a combinatorial property we call the straightening property. We show that many classes of algebras have this straightening property and show that if A is a domain of GK dimension d with this property that is not PI, then the maximal subfields of the quotient division algebra of A have trans...
We provide a new quantitative version of Helly’s theorem: there exists an absolute constant α > 1 with the following property: if {Pi : i ∈ I} is a finite family of convex bodies in R with int (⋂ i∈I Pi ) 6= ∅, then there exist z ∈ R, s 6 αn and i1, . . . is ∈ I such that z + Pi1 ∩ · · · ∩ Pis ⊆ cn 3/2 ( z + ⋂
S. V. Bulanov1,†, T. Zh. Esirkepov1, J. K. Koga1, S. S. Bulanov2, Z. Gong3, X. Q. Yan3,4 and M. Kando1 1Department of Advanced Photon Research, Kansai Photon Research Institute, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa-shi, Kyoto 619-0215, Japan 2Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA 3State Key Laboratory of Nucle...
Phonetic manifestation of paralinguistic information (PI) like speaker’s attitude and intention is a unique property of speech communication. Production and perception of six PI types were examined using Japanese. In speech production, acoustic and articulatory analyses revealed that speech signal and the underlying articulatory gesture differed systematically and considerably under the specifi...
Background and purpose: Royal jelly (RJ) is a substance synthesized by worker bee- is shown to have various biological activities on different cells and tissues of the human body. In this study the effect of RJ on peripheral blood mononuclear cells cytotoxicity against the K562 Erythroleukemia cell line was investigated. Material and methods: In this experimental study human PBMCs (106 cell...
Privacy protection is an important requirement in both everyday life and the Inter-net. As the Internet is an open network, adversaries can observe and manipulate data flowing over it. To ensure privacy in communications over open networks, cryptographic protocols have been widely used, and thus, proposing such protocols has become a popular research area. However, design of cryptographic proto...
Epigallocatechin Gallate (EGCG) Is the Most Effective Cancer Chemopreventive Polyphenol in Green Tea
Green tea is a popular drink consumed daily by millions of people around the world. Previous studies have shown that some polyphenol compounds from green tea possess anticancer activities. However, systemic evaluation was limited. In this study, we determined the cancer chemopreventive potentials of 10 representative polyphenols (caffeic acid, CA; gallic acid, GA; catechin, C; epicatechin, EC; ...
Techniques from algebraic geometry, in particular the hard Lefschetz theorem, are used to show that certain finite partially ordered sets O x derived from a class of algebraic varieties X have the k-Sperner property for all k. This in effect means that there is a simple description of the cardinality of the largest subset of C) x containing no (k + 1)-element chain. We analyze, in some detail, ...
شاخص توپولوژیک عددی حقیقی است که به یک گراف نسبت داده می شود و تحت یک ریختی گراف ثابت می ماند. شاخص های توپولوژیک برای بررسی خواص فیزیکی-شیمیایی ترکیبات شیمیایی به کار می روند. شاخص pi در مقاله ای در سال 2009 در تلاش جهت یافتن رابطه ای دقیق برای محاسبه ی شاخص pi رأسی حاصل ضرب دکارتی گراف ها معرفی شد. بعدها کاربردهای فراوانی از این شاخص در علوم نانو و شیمی به دست آمد. مطالعه ی ریاضی ای...
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