نتایج جستجو برای: pr 2

تعداد نتایج: 2544448  

2018
Zhixiong Chen Vladimir Edemskiy Pinhui Ke Chenhuang Wu

We investigate the k-error linear complexity of pseudorandom binary sequences of period pr derived from the Euler quotients modulo pr−1, a power of an odd prime p for r ≥ 2. When r = 2, this is just the case of polynomial quotients (including Fermat quotients) modulo p, which has been studied in an earlier work of Chen, Niu and Wu. In this work, we establish a recursive relation on the k-error ...

2012
Mohammad Faheem Humera Mahmood Mohammad Khurram Uzma Qasim Javaid Irfan

OBJECTIVES To measure the frequency of estrogen receptor (ER), progesterone receptor (PR), and Her 2 Neu positivity and to study their association with tumour characteristics and menopausal status in a breast cancer cohort from Northern Pakistan. METHODOLOGY Patients attending NORI with histopathologically proven diagnosis of invasive ductal carcinoma of the breast were included after providi...

Journal: :E-polymers 2021

Abstract In this work, octamercapto polyhedral oligomeric silsesquioxane (POSS-8SH) and octaphenol (POSS-8Phenol) were successfully synthetized. POSS-8Phenol was added into the synthesis process of liquid thermoset phenolic resin (PR) to obtain POSS-modified (POSS-PR). Chemical structures POSS-8SH, POSS-8Phenol, POSS-PR confirmed by FTIR 1 H-NMR. TG DTG analysis under different atmosphere showe...

2006
Tao Zhou Jian-Guo Liu Wen-Jie Bai Guanrong Chen Bing-Hong Wang

Tao Zhou, Jian-Guo Liu, Wen-Jie Bai, Guanrong Chen, and Bing-Hong Wang Department of Modern Physics and Nonlinear Science Center, University of Science and Technology of China, Anhui Hefei 230026, PR China 2 Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, PR China Institute of System Engineering, Dalian University of Technology, Dalian 116023, PR China Departm...

Journal: :Chemical communications 2013
Jiawei Chen Roger A Lalancette Frieder Jäkle

The first planar chiral ferrocenylborenium species (pR)-3(+) is obtained in the enantiopure form by halide abstraction from the corresponding chloroborane adduct (pR)-2 using Krossing's salt. Competition experiments suggest that the Lewis acidity of (pR)-3(+) is higher than that of B(C6F5)3 towards anions and slightly lower towards neutral Lewis bases. The ferrocenylborenium species (pR)-3(+) i...

2011
Jin-Bei Shen Jia-Lu Liu Guo-Liang Zhao

In the centrosymmetric binuclear title complex, [Pr(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Pr(III) ions are linked by four 2-phen-oxy-propionate (L) groups through their bi- and tridentate bridging modes. Each Pr(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate carboxyl-ate group and four bridging carboxyl-ate groups in a distorted PrN(2)O(7) monocapped ...

2017
Fereshteh Ensani Ramesh Omranipour Isa Jahanzad Azadeh Jafari Shima Nafarzadeh Pouyan Aminishakib

Background &Objectives Evaluation of estrogen receptor (ER), progesterone receptor (PR), and (human epidermal growth factor receptor-2) Her-2 on core needle biopsies (CNBs) is increasingly in use to diagnosis early breast cancer, but its concordance with surgical excision (SE) is not well documented. Methods The study included 100 formalin fixed, paraffin-embedded specimens of invasive breast...

Journal: :Journal of Bangladesh College of Physicians & Surgeons 2010
Mg Mostafa Mt Larsen Rr Love

Two-thirds of all women who develop breast cancer each year live in Asia. In many countries, including Bangladesh, there are few data on the pathological characteristics of breast tumours. The objectives of this study were a) to describe the estrogen receptor (ER), progesterone receptor (PR), and the expression of Her-2/neu oncogene expression status in a large series of breast cancers occurrin...

Journal: :Theriogenology 2008
P Melendez M Duchens A Perez L Moraga L Archbald

The objectives were to characterize the estrus detection risk (HDR), conception risk (CR), and pregnancy rate (PR) of postpartum (pp) Holstein cattle from the central area of Chile. The study used records of 2269 lactations from six dairy farms in central Chile (Mediterranean-type climate) during 2004. Three 21-d periods for estrus detection were considered (50-70, 71-91, and 92-112d pp). Estru...

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