نتایج جستجو برای: pi 253559 9
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Our aim in preparing this pamphlet is to bring the material in the collection of papers in the second edition of our Pi: A Source Book [9] up to date. Moreover, several delightful pieces came available and are added. This substantial supplement to the third addition serves as a stand alone exposition of the recent history of the computation of digits of Pi. It also includes a discussion of the ...
BACKGROUND The virological efficacy of switching from a ritonavir-boosted protease inhibitor (PI/r)- to a raltegravir (RAL)-containing regimen remains controversial according to the results of SWITCHMRK and SPIRAL studies. The aim of this analysis is to assess the impact of prior resistance mutations to nucleos(t)ides and other potential factors on the virological outcome. METHODS This was a ...
Time-resolved electron paramagnetic resonance studies show that the primary mechanism of triplet formation following photoexcitation of julolidine-anthracene molecules linked by a single bond and having perpendicular pi systems is a spin-orbit, charge-transfer intersystem crossing mechanism (SOCT-ISC). This mechanism depends on the degree of charge transfer from julolidine to anthracene, the di...
The energy spectra of light-mass kaonic nuclei were investigated using the theoretical framework $0s$-orbital model with zero-range $\bar{K} N$ and $\bar{K}\bar{K}$ interactions effective single-channel real potentials. energies NN$, NNN$, NNNN$, $\bar{K}\bar{K} N$, NN$ systems calculated in cases weak- deep-binding interaction, which was adjusted to fit $\Lambda(1405)$ mass bound state. result...
آلودگی های محیط زیست به عنوان یکی عوامل بیابان زایی، از مهم ترین چالش های جوامع صنعتی و در حال توسعه می باشد. با توجه به وجود مکان های معدنی متعدد مهم ترین علت بیابان زایی توسعه صنعتی (تکنوژنیک) در منطقه بافق، آلودگی ناشی از صنایع و معادن است. پژوهش حاضر با هدف تعیین آلاینده های پساب ناشی از فرآوری سنگ آهن در منطقه بافق انجام گردیده است. 16 نمونه طی سال های 1392-1389 از پساب مذکور تهیه و 18 متغ...
the padmakar-ivan (pi) index is a wiener-szeged-like topological index which reflectscertain structural features of organic molecules. the pi index of a graph g is the sum of alledges uv of g of the number of edges which are not equidistant from the vertices u and v. inthis paper we obtain the second and third extremals of catacondensed hexagonal systems withrespect to the pi index.
Parental incarceration (PI) is negatively associated with emotional, educational, and psychological child outcomes. However, few studies explore potential mechanisms through which these outcomes are transmitted or the means by prosocial might develop. This study used data from two waves of a population cohort children aged 9 years followed up 13 living in Ireland. Children parents ( N = 8,568) ...
P hosphatase and tensin homologue deleted on chromosome 10 (PTEN) is a phosphatase that suppresses many tumor types (1, 2). It plays a major role in the development of the nervous system and has been implicated in diseases such as autism (3). Despite its importance, we are only beginning to understand how this important protein is regulated. In 2000 and 2001, Vazquez et al. (4, 5) with great in...
Abstract This study aimed to determine if heifers induced puberty had damage in reproductive performance compared with that reach naturally. Nellore (n = 210) were weaned at 8 ± 0.7 mo of age assigned 42 feedlot pens according BW (184 1 kg). The diet was compounded by Tifton-85 haylage (18% CP; 55% TDN) ad libitum and supplement (4g/kg BW; 25% 60% TDN). Puberty growth assessed weekly. At 14 age...
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