176,455 research outputs found
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
No full textAn 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
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Pharmacoeconomic analysis of adjuvant oral capecitabine vs intravenous 5-FU/LV in Dukes' C colon cancer: the X-ACT trial
No full textOral capecitabine (Xeloda<sup>®</sup>) is an effective drug with favourable safety in adjuvant and metastatic colorectal cancer. Oxaliplatin-based therapy is becoming standard for Dukes' C colon cancer in patients suitable for combination therapy, but is not yet approved by the UK National Institute for Health and Clinical Excellence (NICE) in the adjuvant setting. Adjuvant capecitabine is at least as effective as 5-fluorouracil/leucovorin (5-FU/LV), with significant superiority in relapse-free survival and a trend towards improved disease-free and overall survival. We assessed the cost-effectiveness of adjuvant capecitabine from payer (UK National Health Service (NHS)) and societal perspectives. We used clinical trial data and published sources to estimate incremental direct and societal costs and gains in quality-adjusted life months (QALMs). Acquisition costs were higher for capecitabine than 5-FU/LV, but higher 5-FU/LV administration costs resulted in 57% lower chemotherapy costs for capecitabine. Capecitabine vs 5-FU/LV-associated adverse events required fewer medications and hospitalisations (cost savings £3653). Societal costs, including patient travel/time costs, were reduced by >75% with capecitabine vs 5-FU/LV (cost savings £1318), with lifetime gain in QALMs of 9 months. Medical resource utilisation is significantly decreased with capecitabine vs 5-FU/LV, with cost savings to the NHS and society. Capecitabine is also projected to increase life expectancy vs 5-FU/LV. Cost savings and better outcomes make capecitabine a preferred adjuvant therapy for Dukes' C colon cancer. This pharmacoeconomic analysis strongly supports replacing 5-FU/LV with capecitabine in the adjuvant treatment of colon cancer in the UK
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Influence of acid antisecretory agents on the jejunal (A) and ileal (B) mucin accumulation in the 5-FU-induced small-bowel mucosal damage
No full textFr-1 hexose values corresponding to mucin content are expressed as micrograms of hexose per rat and represent means±SD. Abbreviations: 5-FU = 5-fluorouracil; Ome = omeprazole; Lan = lansoprazole; Laf = lafutidine. = 6–9 (each group); *<p><b>Copyright information:</b></p><p>Taken from "Effects of acid antisecretory drugs on mucus barrier of the rat against 5-fluorouracil-induced gastrointestinal mucositis"</p><p></p><p>Scandinavian Journal of Gastroenterology 2008;43(5):531-537.</p><p>Published online Jan 2008</p><p>PMCID:PMC2430178.</p><p></p
TEM analysis of 5-FU-loaded SLNs at (A) 7500X magnification (scale bar 400 nm) and (B) 20000X magnification (scale bar 100 nm).
No full textTEM analysis of 5-FU-loaded SLNs at (A) 7500X magnification (scale bar 400 nm) and (B) 20000X magnification (scale bar 100 nm).</p
Mutation frequencies following the 5-FU-, 4NQO-, and CPT-treatment.
No full textA), C), and E) The frequencies of overall Lys+ mutations following treatments with 5-FU (10 μM), CPT (100 μM), or 4NQO (0.2 μg/mL), respectively, for 24 hrs. B), D), and F) The frequencies of the uracil-dependent A>C and T>G mutations following treatments with 5-FU, CPT and 4NQO, respectively. Error bars indicate 95% confidence intervals. The number of cultures used to determine the frequencies of mutations and the numerical values of the median mutation frequencies and the confidence intervals represented as graphs in this figure are listed in S4 Table.</p
mDia formins are required for cell recovery in 5-FU-induced myeloid suppression.
No full text(A) The numbers of HSPCs and committed progenitors from purified lineage-negative cells were analyzed and quantified by flow cytometer analysis by day 7 after 5-FU treatment. (B) Survival percentage of lineage-negative cells from A assayed by Annexin V staining. (C) Complete blood cell counts of wild-type or mDia1 KO mice were determined by day 7 after the first injection of 5-FU. (D) Kaplan-Meier survival analysis of indicated mice challenged with serial 5-FU injection. Error bars represent the SEM of the mean. * ppppp values. (TIFF)</p
Aquatica leii Fu et Ballantyne
No full textAquatica leii (Fu et Ballantyne) Figs 19–24, 77, 78, 91 Luciola leii Fu & Ballantyne, 2006 a: 339. Fu et al. 2006 b: 860; 2007: 117; 2009: 155. Material examined. CHINA: Sixteen fifth instars bred from an original population of nine males and four females collected from Huazhong Agricultural University, Wuhan City, Hubei Province, May 14, 2010 (NHMHAU). Diagnosis. Protergum with two small pale areas at anterolateral corners; remaining terga lacking pale markings (paler or darker markings in this species are in the membranous areas not the dorsal tergal plates); lateral margins of protergum rounded; median line narrow (Figs 77, 78); glands with 2–6 marginal spines, lacking median spine (Fu et al. 2009; Fig 1 A); pygopodia arising from 6 basal stalks; rings of recurved hooks completely surrounding each stalk (Figs 61, 62, 91); antennal segment 3 with closely adpressed finger like projections subequal in length to adjacent sense cone (Figs 19, 21–23); mandibles lacking retinaculum; palpi with terminal sense organs (Figs 20, 22, 24). Remarks. The dorsal colouration of the larva depicted in Fu and Ballantyne (2006 a; Fig. 8) differs from that depicted here in having much larger anterolateral pale areas on the protergum, and pale margins on the terminal tergum (Fig. 77).Published as part of Fu, Xinhua, Ballantyne, Lesley & Lambkin, Christine, 2012, The external larval morphology of aquatic and terrestrial Luciolinae fireflies (Coleoptera: Lampyridae), pp. 1-34 in Zootaxa 3405 on page 14, DOI: 10.5281/zenodo.21130
Online Iterative Adaptive Dynamic Programming Approach for Solving the Zero-Sum Game for Nonlinear Continuous-Time Systems with Partially Unknown Dynamics
No full textThe current study presents an online iterative adaptive dynamic programming approach to resolve the zero-sum game (ZSG) for nonlinear continuous-time (CT) systems containing a partially unknown dynamic. The Hamilton-Jacobian-Issacs (HJI) equation is solved along the state trajectory according to the value function approximation and the policy improvement online. Relaxed dynamic programming is utilized to ensure the algorithm’s convergence. Model and costate networks were established to conduct the method. Computational simulations are performed to present the efficiency of the algorithm.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Control & Simulatio
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