564,138 research outputs found

    Joshua Davis: Author of Spare Parts

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    Citation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University

    Nan Lin and social capital

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    Nan Lin’s work on social capital is a significant, unique contribution. My purpose here is to explain that statement by looking at the work in historical context. Figure 2.1 is an index for much of the story to be told. The horizontal axis is time, beginning in 1975 when Nan Lin was at the State University of New York at Albany (now the University of Albany), through his 1990 move to Duke University, and on to 2010

    Search for CPCP violation in D(s)+K+KS0h+hD^{+}_{(s)}\rightarrow K^{+}K^{0}_{S}h^{+}h^{-} (h=K,π)(h=K,\pi) decays and observation of the Cabibbo-suppressed decay Ds+K+KKS0π+D^{+}_{s}\rightarrow K^{+}K^{-}K^{0}_{S}\pi^{+}

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    We search for CPCP violation by measuring a TT-odd asymmetry in the Cabibbo-suppressed D+K+KS0π+πD^{+}\rightarrow K^{+}K^{0}_{S}\pi^{+}\pi^{-} decay, and in the Cabibbo-favored Ds+K+KS0π+πD^{+}_{s}\rightarrow K^{+}K^{0}_{S}\pi^{+}\pi^{-} and D+K+KKS0π+D^{+}\rightarrow K^{+}K^{-}K^{0}_{S}\pi^{+} decays. We use 980 fb1{\rm fb}^{-1} of data collected by the Belle detector running at the KEKB asymmetric-energy e+ee^{+}e^{-} collider. The C ⁣PC\!P-violating TT-odd parameter aCPT-odd{a}^{T\text{-}\rm{odd}}_{CP} is measured to be aCPT-odd(D+K+KS0π+π)=(0.34±0.87±0.32)%,{a}^{T\text{-}\rm{odd}}_{CP}(D^{+}\rightarrow K^{+}K^{0}_{S}\pi^{+}\pi^{-})=(0.34\pm0.87\pm0.32)\%, aCPT-odd(Ds+K+KS0π+π)=(0.46±0.63±0.38)%,{a}^{T\text{-}\rm{odd}}_{CP}(D^{+}_{s}\rightarrow K^{+}K^{0}_{S}\pi^{+}\pi^{-})=(-0.46\pm0.63\pm0.38)\%, and aCPT-odd(D+K+KKS0π+)=(3.34±2.66±0.35)%,{a}^{T\text{-}\rm{odd}}_{CP}(D^{+}\rightarrow K^{+}K^{-}K^{0}_{S}\pi^{+})=(-3.34\pm2.66\pm0.35)\%, where the first uncertainty is statistical and the second is systematic. We also report the first observation of the Cabibbo-suppressed decay Ds+K+KKS0π+D^{+}_{s}\rightarrow K^{+}K^{-}K^{0}_{S}\pi^{+}. The branching fraction is measured relative to that of the analogous Cabibbo-favored decay : B(Ds+K+KKS0π+)/B(Ds+K+KS0π+π)=(1.36±0.15±0.04)%B(D^{+}_{s}\rightarrow K^{+}K^{-}K^{0}_{S}\pi^{+}) / B(D^{+}_{s}\rightarrow K^{+}K^{0}_{S}\pi^{+}\pi^{-}) = (1.36\pm 0.15\pm 0.04)\%

    Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+

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    An analysis of B+ → K0 Sπ+ and B+ → K0 S K+ decays is performed with the LHCb experiment. The pp collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass energies of √ s = 7 TeV and √ s = 8 TeV, respectively. The ratio of branching fractions and the direct CP asymmetries are measured to be B(B+ → K0 S K+ )/B(B+ → K0 Sπ+ ) = 0.064 ± 0.009 (stat.) ± 0.004 (syst.), ACP(B+ → K0 Sπ+ ) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0 S K+ ) = −0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at √ s = 7 TeV is used to search for B+ c → K0 S K+ decays and results in the upper limit ( fc · B(B+ c → K0 S K+ ))/( fu · B(B+ → K0 Sπ+ )) < 5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b quark into a B+ c or a B+ meson, respectively

    Steven Johnson Author Talk Poster

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    K-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book

    Search for CP violation in D s + → K S 0 K − π + π + D(s)+KS0Kπ+π+ {D}_{(s)}^{+}\to {K}_S^0{K}^{-}{\pi}^{+}{\pi}^{+} decays using triple and quadruple products

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    Abstract We perform the first search for CP violation in D s + → K S 0 K − π + π + D(s)+KS0Kπ+π+ {D}_{(s)}^{+}\to {K}_S^0{K}^{-}{\pi}^{+}{\pi}^{+} decays. We use a combined data set from the Belle and Belle II experiments, which study e + e − collisions at center-of-mass energies at or near the Υ(4S) resonance. We use 980 fb −1 of data from Belle and 428 fb −1 of data from Belle II. We measure six CP-violating asymmetries that are based on triple products and quadruple products of the momenta of final-state particles, and also the particles’ helicity angles. We obtain a precision at the level of 0.5% for D + → K S 0 K − π + π + D+KS0Kπ+π+ {D}^{+}\to {K}_S^0{K}^{-}{\pi}^{+}{\pi}^{+} decays, and better than 0.3% for D s + → K S 0 K − π + π + Ds+KS0Kπ+π+ {D}_s^{+}\to {K}_S^0{K}^{-}{\pi}^{+}{\pi}^{+} decays. No evidence of CP violation is found. Our results for the triple-product asymmetries are the most precise to date for singly-Cabibbo-suppressed D + decays. Our results for the other asymmetries are the first such measurements performed for charm decays

    Measurements of K S 0 KS0 {K}_S^0 - K L 0 KL0 {K}_L^0 asymmetries in the decays Λ c + → p K L , S 0 Λc+pKL,S0 {\Lambda}_c^{+}\to p{K}_{L,S}^0 , p K L , S 0 π + π − pKL,S0π+π p{K}_{L,S}^0{\pi}^{+}{\pi}^{-} and p K L , S 0 π 0 pKL,S0π0 p{K}_{L,S}^0{\pi}^0

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    Abstract Using e + e − annihilation data sets corresponding to an integrated luminosity of 4.5 fb −1, collected with the BESIII detector at center-of-mass energies between 4.600 and 4.699 GeV, we report the first measurements of the absolute branching fractions B Λ c + → p K L 0 B(Λc+pKL0) \mathcal{B}\left({\Lambda}_c^{+}\to p{K}_L^0\right) = (1.67 ± 0.06 ± 0.04)%, B Λ c + → p K L 0 π + π − B(Λc+pKL0π+π) \mathcal{B}\left({\Lambda}_c^{+}\to p{K}_L^0{\pi}^{+}{\pi}^{-}\right) = (1.69 ± 0.10 ± 0.05)%, and B Λ c + → p K L 0 π 0 B(Λc+pKL0π0) \mathcal{B}\left({\Lambda}_c^{+}\to p{K}_L^0{\pi}^0\right) = (2.02 ± 0.13 ± 0.05)%, where the first uncertainties are statistical and the second systematic. Combining with the known branching fractions of Λ c + → p K S 0 Λc+pKS0 {\Lambda}_c^{+}\to p{K}_S^0 , Λ c + → p K S 0 π + π − Λc+pKS0π+π {\Lambda}_c^{+}\to p{K}_S^0{\pi}^{+}{\pi}^{-} , and Λ c + → p K S 0 π 0 Λc+pKS0π0 {\Lambda}_c^{+}\to p{K}_S^0{\pi}^0 , we present the first measurements of the K S 0 KS0 {K}_S^0 - K L 0 KL0 {K}_L^0 asymmetries R Λ c + K S , L 0 X = B Λ c + → K S 0 X − B Λ c + → K L 0 X B Λ c + → K S 0 X + B Λ c + → K L 0 X R(Λc+,KS,L0X)=B(Λc+KS0X)B(Λc+KL0X)B(Λc+KS0X)+B(Λc+KL0X) R\left({\Lambda}_c^{+},{K}_{S,L}^0X\right)=\frac{\mathcal{B}\left({\Lambda}_c^{+}\to {K}_S^0X\right)-\mathcal{B}\left({\Lambda}_c^{+}\to {K}_L^0X\right)}{\mathcal{B}\left({\Lambda}_c^{+}\to {K}_S^0X\right)+\mathcal{B}\left({\Lambda}_c^{+}\to {K}_L^0X\right)} in charmed baryon decays: R Λ c + p K S , L 0 = − 0.025 ± 0.031 R(Λc+,pKS,L0)=0.025±0.031 R\left({\Lambda}_c^{+},p{K}_{S,L}^0\right)=-0.025\pm 0.031 , R Λ c + p K S , L 0 π + π − = − 0.027 ± 0.048 R(Λc+,pKS,L0π+π)=0.027±0.048 R\left({\Lambda}_c^{+},p{K}_{S,L}^0{\pi}^{+}{\pi}^{-}\right)=-0.027\pm 0.048 and R Λ c + p K S , L 0 π 0 = − 0.015 ± 0.046 R(Λc+,pKS,L0π0)=0.015±0.046 R\left({\Lambda}_c^{+},p{K}_{S,L}^0{\pi}^0\right)=-0.015\pm 0.046 . No significant asymmetries with statistical significance are observed

    Constructing vertex-disjoint paths in (n,k)-star graphs

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    [[abstract]]This work describes a novel routing algorithm for constructing a container of width n - 1 between a pair of vertices in an (n, k)-star graph with connectivity it - 1. Since Lin et al. [T.C. Lin, D.R. Duh, H.C. Cheng, Wide diameter of (n, k)-star networks, in: Proceedings of the International Conference on Computing, Communications and Control Technologies, vol. 5, 2004 pp. 160-165] already calculated the wide diameters in (n, n - 1)-star and (n, 1)-star graphs, this study only considers an (n, k)-star with 2 <= k <= n - 2. The length of the longest container among all constructed containers serves as the upper bound of the wide diameter of an (n, k)-star graph. The lower bound of the wide diameter of an (n, k)-star graph with 2 <= k <= [n/2] and the lower bound of the wide diameter of a regular graph with a connectivity of 2 or above are also computed. Measurement results indicate that the wide diameter of an (n, k)-star graph is its diameter plus 2 for 2 <= k <= [n/2], or its diameter plus a value between 1 and 2 for [n/2] + 1 <= k <= n - 2. (c) 2007 Elsevier Inc. All rights reserved.[[note]]SC

    Sample Efficient Search to Decision for kkLIN

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    The kkLIN problem concerns solving noisy systems of random sparse linear equations mod 2. It gives rise to natural candidate hard CSP distributions and is a cornerstone of local cryptography. Recently, it was used in advanced cryptographic constructions, under the name \u27sparse LPN\u27. For constant sparsity kk and inverse polynomial noise rate, both search and decision versions of kkLIN are statistically possible and conjectured to be computationally hard for nmnk/2n\ll m\ll n^{k/2}, where mm is the number of kk-sparse linear equations, and nn is the number of variables. We show an algorithm that given access to a distinguisher for (k1)(k-1)LIN with mm samples, solves search kkLIN with roughly O(nm)O(nm) samples. Previously, it was only known how to reduce from search kkLIN with O(m3)O(m^3) samples, yielding meaningful guarantees for decision kkLIN only when mnk/6m \ll n^{k/6}. The reduction succeeds even if the distinguisher has sub-constant advantage at a small additive cost in sample complexity. Our technique applies with some restrictions to Goldreich\u27s function and kkLIN with random coefficients over other finite fields

    lin-31, a Caenorhabditis elegans HNF-3/fork head transcription factor homolog, specifies three alternative cell fates in vulva development

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    Late events in the cell-cell signalling pathway that controls the specification of vulva cell fates in C. elegans are characterized. The lin-31 gene acts downstream of the ras homolog let-60 and encodes a member of the HNF-3/fork head family of DNA-binding transcription factors. lin-31 regulates how vulval precursor cells choose their fate and in lin-31 mutants, these cells do not properly choose which fate to express and therefore adopt any of the 3 possible vulval cell fates in a deregulated manner..RE: 68 ref.; SC: CA; PE; 0TSource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0890-9369&isbn=&volume=7&issue=6&spage=933&pages=933-947&date=1993&title=Genes%20and%20Development&atitle=lin-31%2c%20a%20Caenorhabditis%20elegans%20HNF-3%2ffork%20head%20transcription%20factor%20homolog%2c%20specifies%20three%20alternative%20cell%20fates%20in%20vulva%20development.&aulast=Miller&pid=%3Cauthor%3EMiller%2c%20L%20M%3bGallegos%2c%20M%20E%3bMorisseau%2c%20B%20A%3bKim%2c%20S%20K%3C%2Fauthor%3E%3CAN%3E19932337278%3C%2FAN%3E%3CDT%3EJournal%20article%3C%2FDT%3
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