نتایج جستجو برای: pi regular

تعداد نتایج: 165148  

Journal: :Chest 2001
D Giannini A Di Franco E Bacci F L Dente M L Bartoli B Vagaggini P Paggiaro

STUDY OBJECTIVE To assess whether the withdrawal of salmeterol treatment for 3 days (72 h) can restore its bronchoprotective ability on specific bronchial provocative test (sBPT) with allergen, which was completely lost after 1 week of regular treatment with salmeterol. STUDY DESIGN Single-blind design. PATIENTS AND METHODS We investigated 10 nonsmoking subjects (8 men and 2 women; mean +/-...

2018
Robert McCoy Vernon Paul Andrew Chong Brian Tsang Tae Hun Kim Alaji Bah Patrick Farber Hong Lin Julie Deborah Forman-Kay

Protein phase separation is implicated in formation of membraneless organelles, signaling puncta and the nuclear pore. Multivalent interactions of modular binding domains and their target motifs can drive phase separation. However, forces promoting the more common phase separation of intrinsically disordered regions are less understood, with suggested roles for multivalent cation-pi, pi-pi, and...

M. Farmani, SH. A. Safari ‎Sabet‎

Let $R$ be an associative ring with identity. An element $x in R$ is called $mathbb{Z}G$-regular (resp. strongly $mathbb{Z}G$-regular) if there exist $g in G$, $n in mathbb{Z}$ and $r in R$ such that $x^{ng}=x^{ng}rx^{ng}$ (resp. $x^{ng}=x^{(n+1)g}$). A ring $R$ is called $mathbb{Z}G$-regular (resp. strongly $mathbb{Z}G$-regular) if every element of $R$ is $mathbb{Z}G$-regular (resp. strongly $...

2009

Figure 1: Phase mode AFM image of directionally crystallized P3HT, revealing the unique grain structure. The white arrow indicates the direction of the fiber axis and polymer chain axis. The scan is 4 by 4 μm. (Left) The cartoon shows a possible orientation of crystallites within the directionally crystallized film, as derived from XRD. Red crystallites are “edge-on” with their pi-pi stacking r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده ریاضی 1390

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...

Journal: :international journal of industrial mathematics 2014
a. arjomandfar o. khormali

in this paper, at first we mention to some results related to pi and vertex co-pi indices and then we introduce the edge versions of co-pi indices. then, we obtain some properties about these new indices.

Journal: :Journal of the Formosan Medical Association = Taiwan yi zhi 2001
C Y Wang T C Chang

BACKGROUND AND PURPOSE Graves' disease (GD) is the most common hyperthyroid disorder, but the therapeutic strategy for choosing between medical or ablative therapy has not been standardized. Thyroid hypervascularity is an important diagnostic feature in GD. This study collected Doppler ultrasonography data from patients with GD, Hashimoto's thyroiditis, and simple goiter to develop a hemodynami...

Journal: :J. Comb. Theory, Ser. B 2011
Jin Ho Kwak Young Soo Kwon

A 2-cell embedding of a graph G into a closed (orientable or nonorientable) surface is called regular if its automorphism group acts regularly on the flags mutually incident vertex-edge-face triples. In this paper, we classify the regular embeddings of complete bipartite graphs Kn,n into nonorientable surfaces. Such a regular embedding of Kn,n exists only when n = 2p a1 1 p a2 2 · · · p ak k (a...

Journal: :iranian journal of mathematical chemistry 2015
a. maden e. kaya

in this paper, we present some inequalities for the co-pi index involving the some topological indices, the number of vertices and edges, and the maximum degree. after that, we give a result for trees. in addition, we give some inequalities for the largest eigenvalue of the co-pi matrix of g.

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