نتایج جستجو برای: rbe

تعداد نتایج: 686  

Journal: :Physics in medicine and biology 1989
H Shirato

The biological equivalent dose profile of the pion beam was predicted with one parameter (gamma) using physical dose and pion star density. The value of the relative biological effectiveness (RBE) at each depth was given as a linear function of pion star density (PSD): RBE = 1.0 + gamma PSD, assuming (i) the mixed beam lesion additivity model and (ii) the linear relationship between the ratio o...

2014
Seon-Mi Lee Youngmin Choi Jeehye Sung Younghwa Kim Heon-Sang Jeong Junsoo Lee

Black rice contains many biologically active compounds. The aim of this study was to investigate the protective effects of black rice extracts (whole grain extract, WGE and rice bran extract, RBE) on tert-butyl hydroperoxide (TBHP)-induced oxidative injury in HepG2 cells. Cellular reactive oxygen species (ROS), antioxidant enzyme activities, malondialdehyde (MDA) and glutathione (GSH) concentra...

2014
Mizuho Aoki-Nakano Yoshiya Furusawa Akiko Uzawa Yoshitaka Matsumoto Ryoichi Hirayama Chizuru Tsuruoka Takashi Ogino Teiji Nishio Kazufumi Kagawa Masao Murakami Go Kagiya Kyo Kume Masanori Hatashita Shigekazu Fukuda Kazutaka Yamamoto Hiroshi Fuji Shigeyuki Murayama Masaharu Hata Takeji Sakae Hideki Matsumoto

We investigated the relative biological effectiveness (RBE) of therapeutic proton beams at six proton facilities in Japan with respect to cell lethality of HSG cells. The RBE of treatments could be determined from experimental data. For this purpose, we used a cell survival assay to compare the cell-killing efficiency of proton beams. Among the five linear accelerator (LINAC) X-ray machines at ...

2004
J. Austin A. Turner M. Turner K. Lees

This paper describes the application of the Relaxation By Elimination (RBE) method to matching the 3D structure of molecules in chemical databases within the frame work of binary correlation matrix memories. The paper illustrates that, when combined with distributed representations, the method maps well onto these networks, allowing high performance implementation in parallel systems. It outlin...

Journal: :Journal of virology 2007
Mary Murphy Janette Gomos-Klein Marko Stankic Erik Falck-Pedersen

The large Rep proteins, p68 and p78, function as master controllers of the adeno-associated virus type 2 (AAV2) life cycle, involved in transcriptional control, in latency, in rescue, and in viral DNA replication. The p5 promoter may be the nucleic acid complement to the large Rep proteins. It drives expression of the large Rep proteins, it undergoes autoregulation by Rep, it undergoes inductio...

2015
Hironori Horiguchi Tatsuhiko Sato Hiroaki Kumada Tetsuya Yamamoto Takeji Sakae

The absorbed doses deposited by boron neutron capture therapy (BNCT) can be categorized into four components: α and (7)Li particles from the (10)B(n, α)(7)Li reaction, 0.54-MeV protons from the (14)N(n, p)(14)C reaction, the recoiled protons from the (1)H(n, n) (1)H reaction, and photons from the neutron beam and (1)H(n, γ)(2)H reaction. For evaluating the irradiation effect in tumors and the s...

Journal: :CoRR 2018
Ying Shan Jian Jiao Jie Zhu J. C. Mao

Rapid advances in GPU hardware and multiple areas of Deep Learning open up a new opportunity for billion-scale information retrieval with exhaustive search. Building on top of the powerful concept of semantic learning, this paper proposes a Recurrent Binary Embedding (RBE) model that learns compact representations for real-time retrieval. The model has the unique ability to refine a base binary...

Journal: :Physics in medicine and biology 2004
V A Nievaart R L Moss J L Kloosterman T H J J van der Hagen H van Dam

The values of the parameters used in boron neutron capture therapy (BNCT) to calculate a given dose to human tissue vary with patients due to different physical, biological and/or medical circumstances. Parameters include the tissue dimensions, the 10B concentration and the relative biological effectiveness (RBE) factors for the different dose components associated with BNCT. Because there is s...

2011
T. Friedrich U. Scholz T. Elsässer M. Durante M. Scholz

One important rationale for tumor therapy with carbon ions is the enhanced relative biological effectiveness (RBE) compared to conventional photon therapy. As the RBE depends on many factors such as the LET distribution in a given depth in tissue, the delivered dose and the radiosensitivity of the cells or tissues under investigation, it can not be investigated experimentally for all relevant p...

Journal: :Development 2012
Tengbo Huang Francesc López-Giráldez Jeffrey P Townsend Vivian F Irish

The establishment and maintenance of organ boundaries are vital for animal and plant development. In the Arabidopsis flower, three microRNA164 genes (MIR164a, b and c) regulate the expression of CUP-SHAPED COTYLEDON1 (CUC1) and CUC2, which encode key transcriptional regulators involved in organ boundary specification. These three miR164 genes are expressed in distinct spatial and temporal domai...

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