نتایج جستجو برای: روش sn

تعداد نتایج: 394362  

2001
Aaron Robertson

Define Sn(R;T ) to be the number of permutations on n letters which avoid all patterns in the set R and contain each pattern in the multiset T exactly once. In this paper we enumerate Sn({α}; {β}) and Sn(∅; {α, β}) for all α 6= β ∈ S3. We show that there are five Wilf-like classes associated with each of Sn({α}; {β}) and Sn(∅; {α, β}) for all α 6= β ∈ S3.

Journal: :Acta cirurgica brasileira 2006
Renato Santos de Oliveira Filho Allisson Monteiro da Silva Bernardo Hochman Renato Leão de Oliveira Liliana Arcuschin Jairo Wagner Lílian Yuri Yamaga Lydia Masako Ferreira

PURPOSE The importance of gamma probe detection (GPD) combined with vital dye for sentinel node (SN) biopsy is well accepted. We evaluated the efficacy of patent blue dye (PBD) in identifying inguinal SN. METHODS Ninety-four cutaneous melanoma patients with inferior extremity lesions were submitted to SNB according to a established protocol. Patients were randomized in two groups: Blue group,...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2003
N Hart M I Polkey T Sharshar L Falaize B Fauroux J C Raphaël F Lofaso

BACKGROUND Inspiratory muscle strength in patients with neuromuscular disorders can be assessed using sniff inspiratory nasal pressure (Pn(sn)) and maximum inspiratory mouth pressure (PI(max)). However, the relative merits of Pn(sn) against PI(max) are not known in patients with severe neuromuscular disease. OBJECTIVE To investigate whether severity of disease modifies the relation between Pn...

Journal: :journal of physical & theoretical chemistry 2009
n. khodayari b. honarparvar m. monajjemi k. parivar

theoretically predictionq of the solvent effects of i - pentadecanoyl - 2 -docosahexaennyl - sn - glycerol3 - phosphocholin have been studied using 'jamey-lock quantiun chemical approximation and std - 30basis set within the onsager self-consistent reaction field (scrs') model all optimized conformers of i -pentadecanoyl - 2 -docosahexaenoyi - sn - glycerol 3 - phosphocholin as well as their to...

Journal: : 2022

اندازه‌گیری پرتو گاما در زمینه‌های مختلف تحقیقاتی نیازمند آشکارسازهای کارآمد است. زمینه دزیمتری فوتون آشکارساز جرقه‌ای NaI(Tl) به عنوان یکی از سوسوزن معدنی (غیرآلی)، علت دارا بودن مقدار بالای نور خروجی بسیار حایز اهمیت این پژوهش سعی گردیده است، با کمک کد مونت‌کارلو (MCNPX) مقدمات مشخصه‌یابی توسط و بهره‌گیری روش‌های متفاوت محاسبه دز (تالی‌های 6F، 4*F، 6+F 8*F) انجام شود. طور معمول، یک تابش (شمار...

Journal: : 2022

هدف: پژوهش حاضر با هدف شناسایی و اولویت‌بندی پیشایندها پسایندهای سبک رهبری چابک استفاده از روش دلفی فازی صورت پذیرفت.طراحی/ روش‌شناسی/ رویکرد: این نوع پژوهش‌های آمیخته رویکرد کیفی کمی در پارادایم استقرایی است که نظر هدف، کاربردی لحاظ ماهیت روش، اکتشافی است. جامعه آماری شرکت‌های دانش‌بنیان استان لرستان هستند 30 نفر خبرگان آنها بر اساس اصل کفایت نظری نمونه‌گیری هدفمند انتخاب شده‌اند. ابزار گردآور...

2010
Tom Denton Florent Hivert Anne Schilling

Building on the work of P.N. Norton, we give combinatorial formulae for two maximal decompositions of the identity into orthogonal idempotents in the 0-Hecke algebra of the symmetric group, CH0(SN ). This construction is compatible with the branching from H0(SN−1) to H0(SN ). Résumé. En s’appuyant sur le travail de P.N. Norton, nous donnons des formules combinatoires pour deux décompositions ma...

Journal: :Electr. J. Comb. 2013
Taylor F. Allison Anant P. Godbole Kathryn M. Hawley Bill Kay

Let Sn be the set of all permutations on [n] := {1, 2, . . . , n}. We denote by κn the smallest cardinality of a subset A of Sn+1 that “covers” Sn, in the sense that each π ∈ Sn may be found as an order-isomorphic subsequence of some π′ in A. What are general upper bounds on κn? If we randomly select νn elements of Sn+1, when does the probability that they cover Sn transition from 0 to 1? Can w...

Journal: :Interactive cardiovascular and thoracic surgery 2015
Alexandra Bucknor Karen Harrison-Phipps Thomas Davies Levon Toufektzian

A best evidence topic was written according to a structured protocol. The question addressed was whether silver nitrate (SN) is an effective means of pleurodesis. A total of 42 papers were identified using the reported search, of which 8 represented the best evidence to address the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relev...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2013
Sreenivasan Koliyat Parayil Jooran Lee Minjoong Yoon

Highly fluorescent and thermo-stable peptide nanoribbons (PNRs) were fabricated by solvothermal self-assembly of a single peptide (D,D-diphenyl alanine peptides) with Sn-porphyrin (trans-dihydroxo[5,10,15,20-tetrakis(p-tolyl)porphyrinato] Sn(IV) (SnTTP(OH)2)). The structural characterization of the as-prepared nanoribbons was performed by transmitting electron microscopy (TEM), scanning electro...

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