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Measurement of|Vub|from Inclusive Charmless SemileptonicBDecays
Urquijo, P.,Barberio, E.,Adachi, I.,Aihara, H.,Arinstein, K.,Bakich, A. M.,Belous, K.,Bhardwaj, V.,Bischofberger, M.,Bozek, A.,Brax10d,ko, M.,Browder, T. E.,Chao, Y.,Chen, A.,Cheon, B. G.,Chistov, R American Physical Society 2010 Physical review letters Vol.104 No.2
<P>We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-ub vertical bar, using a multivariate analysis method to access similar to 90% of the B -> X(u)l nu phase space. This approach dramatically reduces the theoretical uncertainties from the b-quark mass and nonperturbative QCD compared to all previous inclusive measurements. The results are based on a sample of 657 X 10(6) B (B) over bar pairs collected with the Belle detector. We find that Delta B(B -> X(u)l nu; p(l)*(B) > 1.0 GeV/c) = 1.963X(1 +/- 0.088(stat) +/- 0.081(syst)) X 10(-3). Corresponding values of vertical bar V-ub vertical bar are extracted using several theoretical calculations.</P>
Study of Ωc0 and Ωc∗0 baryons at Belle
Solovieva, E.,Chistov, R.,Adachi, I.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A.M.,Balagura, V.,Bitenc, U.,Bondar, A.,Brax10d,ko, M.,Brodzicka, J.,Browder, T.E.,Chang, P.,Chen, A.,Cheon, B.G.,Cho Elsevier 2009 Physics letters: B Vol.672 No.1
<P><B>Abstract</B></P><P>We report results from a study of the charmed double strange baryons Ωc0 and Ωc∗0 at Belle. The Ωc0 is reconstructed using the Ωc0→<SUP>Ω−</SUP><SUP>π+</SUP> decay mode, and its mass is measured to be (2693.6±0.3−1.5+1.8) MeV/<SUP>c2</SUP>. The Ωc∗0 baryon is reconstructed in the Ωc0γ mode. The mass difference <SUB>MΩc∗0</SUB>−<SUB>MΩc0</SUB> is measured to be (70.7±0.9−0.9+0.1) MeV/<SUP>c2</SUP>. The analysis is performed using 673 fb<SUP>−1</SUP> of data on and near the ϒ(4S) collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider.</P>
Transcriptomes of major renal collecting duct cell types in mouse identified by single-cell RNA-seq
Chen, Lihe,Lee, Jae Wook,Chou, Chung-Lin,Nair, Anil V.,Battistone, Maria A.,Pax306,unescu, Teodor G.,Merkulova, Maria,Breton, Sylvie,Verlander, Jill W.,Wall, Susan M.,Brown, Dennis,Burg, Maurice B. National Academy of Sciences 2017 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.114 No.46
<P><B>Significance</B></P><P>A long-term goal in mammalian biology is to identify the genes expressed in every cell type of the body. In the kidney, the expressed genes (i.e., transcriptome) of all epithelial cell types have already been identified with the exception of the cells that make up the renal collecting duct, which is responsible for regulation of blood pressure and body fluid composition. Here, single-cell RNA-sequencing was used in mouse to identify transcriptomes for the major collecting duct cell types: type A intercalated cells, type B intercalated cells, and principal cells. The information was used to create a publicly accessible online resource. The data allowed identification of genes that are selectively expressed in each cell type, which is informative for cell-level understanding of physiology and pathophysiology.</P><P>Prior RNA sequencing (RNA-seq) studies have identified complete transcriptomes for most renal epithelial cell types. The exceptions are the cell types that make up the renal collecting duct, namely intercalated cells (ICs) and principal cells (PCs), which account for only a small fraction of the kidney mass, but play critical physiological roles in the regulation of blood pressure, extracellular fluid volume, and extracellular fluid composition. To enrich these cell types, we used FACS that employed well-established lectin cell surface markers for PCs and type B ICs, as well as a newly identified cell surface marker for type A ICs, c-Kit. Single-cell RNA-seq using the IC- and PC-enriched populations as input enabled identification of complete transcriptomes of A-ICs, B-ICs, and PCs. The data were used to create a freely accessible online gene-expression database for collecting duct cells. This database allowed identification of genes that are selectively expressed in each cell type, including cell-surface receptors, transcription factors, transporters, and secreted proteins. The analysis also identified a small fraction of hybrid cells expressing aquaporin-2 and anion exchanger 1 or pendrin transcripts. In many cases, mRNAs for receptors and their ligands were identified in different cells (e.g., <I>Notch2</I> chiefly in PCs vs. <I>Jag1</I> chiefly in ICs), suggesting signaling cross-talk among the three cell types. The identified patterns of gene expression among the three types of collecting duct cells provide a foundation for understanding physiological regulation and pathophysiology in the renal collecting duct.</P>
X.M. Chen,Y. Zhang,W.W. Kong,X.B. Bian,J.P. Zhou,P. Liu 한양대학교 세라믹연구소 2010 Journal of Ceramic Processing Research Vol.11 No.4
Barium titanate (BaTiO3, or BT) powders were synthesized via a solid state reaction of BaCO3-TiO2 by combining a highenergy ball milling (HBM) technique and a calcination method. Using X-ray diffraction (XRD) methods with a Rietveld refinement, the effects of calcination temperature on the phase formation and crystallite structure of BT powders were studied. It is found that by means of HBM the synthesis temperature for obtaining BT single phase is decreased to 960 oC, which is much lower than that required by the conventional solid-state reaction process, and the crystallite structure of BT is in the (pseudo)cubic form. As the calcination temperature is increased to 980 oC, the structure of BT crystallites transforms from the (pseudo)cubic to the tetragonal form. With an increase in the calcination temperature, both the tetragonality (c/a-1) and crystallite size are increased.
Initial results from Phase 2 of the international urban energy balance model comparison
Grimmond, C. S. B.,Blackett, M.,Best, M. J.,Baik, J.x2010,J.,Belcher, S. E.,Beringer, J.,Bohnenstengel, S. I.,Calmet, I.,Chen, F.,Coutts, A.,Dandou, A.,Fortuniak, K.,Gouvea, M. L.,Hamdi, R.,Hendry, John Wiley Sons, Ltd. 2011 International journal of climatology Vol.31 No.2
<P><B>Abstract</B></P><P>Urban land surface schemes have been developed to model the distinct features of the urban surface and the associated energy exchange processes. These models have been developed for a range of purposes and make different assumptions related to the inclusion and representation of the relevant processes. Here, the first results of Phase 2 from an international comparison project to evaluate 32 urban land surface schemes are presented. This is the first large‐scale systematic evaluation of these models. In four stages, participants were given increasingly detailed information about an urban site for which urban fluxes were directly observed. At each stage, each group returned their models' calculated surface energy balance fluxes. Wide variations are evident in the performance of the models for individual fluxes. No individual model performs best for all fluxes. Providing additional information about the surface generally results in better performance. However, there is clear evidence that poor choice of parameter values can cause a large drop in performance for models that otherwise perform well. As many models do not perform well across all fluxes, there is need for caution in their application, and users should be aware of the implications for applications and decision making. Copyright © 2010 Royal Meteorological Society</P>
X. J. Chen,J. C. Xu,H. X. Jin,D. F. Jin,B. Hong,H. L. Ge,X. Q. Wang 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.5
In this paper, ordered mesoporous SBA-15 silica was synthesized by the hydrothermal method, and then a series of CoFe2O4/SBA-15 nanocomposites were synthesized by a facile impregnation method. X-ray diffraction and N2 adsorption–desorption isotherms were used to characterize the microstructure and morphology of SBA-15 and CoFe2O4/SBA-15 nanocomposites. CoFe2O4 nanoparticles presented spinel phase structure and existed in the mesopores of SBA-15. The magnetic response of CoFe2O4/SBA-15 nanocomposites was characterized with vibrating sample magnetometer (VSM). The adsorption efficiency of CoFe2O4/SBA-15 nanocomposites for methylene blue increased firstly with the increasing CoFe2O4 content, and then decreased. Sample-2 (SBA-15: CoFe2O4 = 1: 0.1 in the precursor) not only presented the best adsorptive performance, but also could be separated and retrieved effectively by magnetic separation technique.
Search for lepton-flavor-violating <i>τ</i> decay into a lepton and an <sub>f0</sub>(980) meson
Miyazaki, Y.,Adachi, I.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A.M.,Bay, A.,Bedny, I.,Bitenc, U.,Bondar, A.,Bozek, A.,Brax10d,ko, M.,Browder, T.E.,Chen, A.,Cheon, B.G.,Cho, I.-S.,Choi, Y.,Dalse Elsevier 2009 Physics letters: B Vol.672 No.4
<P><B>Abstract</B></P><P>We search for lepton-flavor-violating <I>τ</I> decays into a lepton (electron or muon) and an <SUB>f0</SUB>(980) meson using 671 fb<SUP>−1</SUP> of data collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider. No events are observed and we set the following 90% C.L. upper limits on the branching fraction products: B(<SUP>τ−</SUP>→<SUP>e−</SUP><SUB>f0</SUB>(980))×B(<SUB>f0</SUB>(980)→<SUP>π+</SUP><SUP>π−</SUP>)<3.2×<SUP>10−8</SUP> and B(<SUP>τ−</SUP>→<SUP>μ−</SUP><SUB>f0</SUB>(980))×B(<SUB>f0</SUB>(980)→<SUP>π+</SUP><SUP>π−</SUP>)<3.4×<SUP>10−8</SUP>. This is the first search performed for these modes.</P>
Sun, G.A.,Wang, X.L.,Wang, Y.D.,Woo, W.C.,Wang, H.,Liu, X.P.,Chen, B.,Fu, Y.Q.,Sheng, L.S.,Ren, Y. Elsevier Sequoia 2013 Materials science & engineering. properties, micro Vol.560 No.-
High-energy synchrotron X-ray diffraction technique was used to in-situ characterize microstructure, lattice strain, and phase transition behavior of a Ni<SUB>47</SUB>Ti<SUB>44</SUB>Nb<SUB>9</SUB> shape memory alloy. Phase transformation kinetics and deformation mechanisms were studied under a uniaxial tension at three testing temperatures, i.e., -70<SUP>o</SUP>C, 25<SUP>o</SUP>C, and 150<SUP>o</SUP>C. At a testing temperature of -70<SUP>o</SUP>C, a complicated phase transformation with four stages of micromechanical deformation was identified which is associated with changes of martensite substructures. At room temperature of 25<SUP>o</SUP>C, there was no stress-induced selection process of variants of B19' phases observed. Whereas at a testing temperature of 150<SUP>o</SUP>C, there was no any phase transformation observed. It is verified that β-Nb phase, an effective stabilizer for the austenite, delays the process of martensitic transformation and relaxes the strain energy without strengthening the matrix. This new finding is important to understand the relationship between the micromechanical deformation behavior and phase transformations in the Ni<SUB>47</SUB>Ti<SUB>44</SUB>Nb<SUB>9</SUB> SMA.
Evidence for semileptonicB−→pp¯ℓ−ν¯ℓdecays
Tien, K.-J.,Wang, M.-Z.,Adachi, I.,Aihara, H.,Asner, D. M.,Aulchenko, V.,Aushev, T.,Bakich, A. M.,Bala, A.,Bhuyan, B.,Bozek, A.,Brax10d,ko, M.,Browder, T. E.,Chang, P.,Chekelian, V.,Chen, A.,Chen, P American Physical Society 2014 PHYSICAL REVIEW D - Vol.89 No.1
Quest for Missing Proteins: Update 2015 on Chromosome-Centric Human Proteome Project
Horvatovich, Pex301,ter,Lundberg, Emma K.,Chen, Yu-Ju,Sung, Ting-Yi,He, Fuchu,Nice, Edouard C.,Goode, Robert J.,Yu, Simon,Ranganathan, Shoba,Baker, Mark S.,Domont, Gilberto B.,Velasquez, Erika,Li, D American Chemical Society 2015 Journal of Proteome Research Vol.14 No.9
<P>This paper summarizes the recent activities of the Chromosome-Centric Human Proteome Project (C-HPP) consortium, which develops new technologies to identify yet-to-be annotated proteins (termed “missing proteins”) in biological samples that lack sufficient experimental evidence at the protein level for confident protein identification. The C-HPP also aims to identify new protein forms that may be caused by genetic variability, post-translational modifications, and alternative splicing. Proteogenomic data integration forms the basis of the C-HPP’s activities; therefore, we have summarized some of the key approaches and their roles in the project. We present new analytical technologies that improve the chemical space and lower detection limits coupled to bioinformatics tools and some publicly available resources that can be used to improve data analysis or support the development of analytical assays. Most of this paper’s content has been compiled from posters, slides, and discussions presented in the series of C-HPP workshops held during 2014. All data (posters, presentations) used are available at the C-HPP Wiki (<uri xlink:href='http://c-hpp.webhosting.rug.nl/' xlink:type='simple'>http://c-hpp.webhosting.rug.nl/</uri>) and in the Supporting Information.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jprobs/2015/jprobs.2015.14.issue-9/pr5013009/production/images/medium/pr-2014-013009_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/pr5013009'>ACS Electronic Supporting Info</A></P>