نتایج جستجو برای: bn

تعداد نتایج: 8158  

Journal: :Molecules 2016
Juanjuan Liu R Govindan Kutty Zheng Liu

Hexagonal boron nitrite (h-BN) is an attractive material for many applications including electronics as a complement to graphene, anti-oxidation coatings, light emitters, etc. However, the synthesis of high-quality h-BN is still a great challenge. In this work, via controlled chemical vapor deposition, we demonstrate the synthesis of h-BN films with a controlled thickness down to atomic layers....

2008
Martin Hildebrand

Chung, Diaconis, and Graham considered random processes of the form Xn+1 = 2Xn + bn (mod p) where X0 = 0, p is odd, and bn for n = 0, 1, 2, . . . are i.i.d. random variables on {−1, 0, 1}. If Pr(bn = −1) = Pr(bn = 1) = β and Pr(bn = 0) = 1 − 2β, they asked which value of β makes Xn get close to uniformly distributed on the integers mod p the slowest. In this paper, we extend the results of Chun...

Journal: :Clinical and experimental rheumatology 2001
T Westermark S Rantapää-Dahlqvist S Wållberg-Jonsson U Kjörell S Forsgren

OBJECTIVE Bombesin (BN) and the mammalian homologue gastrin-releasing peptide (GRP) are known trophic factors, neurotransmitters and paracrine hormones. BN/GRP has not previously been demonstrated in synovial fluid. In this study, the amounts of BN/GRP and substance P (SP) present in synovial fluid from the knee joints of patients with rheumatoid arthritis (RA) and of healthy controls were meas...

Journal: :BMC Psychiatry 2007
Anu K Koskela Anna Keski-Rahkonen Elina Sihvola Tomi Kauppinen Jaakko Kaprio Aapo Ahonen Aila Rissanen

BACKGROUND Bulimia Nervosa (BN) is believed to be caused by an interaction of genetic and environmental factors. Previous studies support the existence of a bulimia-related endophenotype as well as disturbances in serotonin (5-HT) transmission. We studied serotonin transporter (SERT) binding in BN, and to investigate the possibility of a SERT-related endophenotype for BN, did this in a sample o...

Journal: :Psychiatria Danubina 2018
Trpimir Jakovina Maja Crnković Batista Andrea RaŽić Pavičić Iva Žurić Jakovina Ivan Begovac

BACKGROUND The aim of this study was to examine whether there is a difference in the dimensions of attachment and difference in emotional regulation between the group of female patients suffering from bulimia nervosa (BN) and the control group. We also wanted to examine whether emotional regulation has a mediating role in the relationship between dimensions of attachment and severity of BN symp...

Journal: :Journal of the American Chemical Society 2014
Xiao-Ye Wang Fang-Dong Zhuang Rui-Bo Wang Xin-Chang Wang Xiao-Yu Cao Jie-Yu Wang Jian Pei

A straightforward strategy has been used to construct large BN-embedded π-systems simply from azaacenes. BN heterosuperbenzene derivatives, the largest BN heteroaromatics to date, have been synthesized in three steps. The molecules exhibit curved π-surfaces, showing two different conformations which are self-organized into a sandwich structure and further packed into a π-stacking column. The as...

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