bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adaptive compensation for infinite number of actuator failures with an application to flight control
Authors: Wang Chenliang , Guo Lei 
Published: July 2015

SummaryIn this paper, a new adaptive compensation control scheme is proposed for a class of nonlinear systems with unknown parameters and unknown actuator failures. The normal operation case and different failure cases of actuators are unified through a time‐varying model. By introducing a smooth function, an integrable auxiliary signal, and a bound estimation approach, the effect of failures is successfully compensated for, and the total number of failures is not restricted to be finite. It is shown that all closed‐loop signals are globally uniformly bounded, and the tracking error converges to zero asymptotically regardless of the possibly infinite number of actuator failures. An application to the longitudinal dynamic model of a twin otter aircraft is presented to illustrate the effectiveness of the proposed scheme. Copyright © 2015 John Wiley & Sons, Ltd.
Investigating Technical Efficiency and Its Determinants by Data Envelopment Analysis: An Application in the Greek Food and Beverages Manufacturing Industry
Authors: Rezitis Anthony N. , Kalantzi Maria A. 
Published: July 2015

ABSTRACTIn this paper, a two‐step procedure is applied in order to investigate technical efficiency and its determinants in the Greek food and beverages manufacturing industry for the period 1984–2007. Technical efficiency scores for the industry are estimated using the data envelopment analysis approach. Moreover, bootstrapped truncated regressions and OLS regressions are applied in order to investigate the factors affecting technical efficiency. The empirical results indicate that there is a fluctuation of technical efficiency scores among the sectors of the food and beverages industry. Furthermore, the findings obtained from both the Tobit and the OLS regressions support that the factors affecting positively the level of technical efficiency are sector size, capital productivity, labor productivity, and labor intensity. The results also show that the technical efficiency of the whole industry tended to decrease during the period 1984–2007. Moreover, the present paper provides some policy recommendations that may be useful for the industry to overcome the present economic crisis. Finally, in future research, the technical efficiency of the Greek food industry will be analyzed based on the meta‐analysis approach. [JEL Classifications: C60, L60, O14].
Asbestos textile production linked to malignant peritoneal and pleural mesothelioma in women: Analysis of 28 cases in Southeast China
Authors: Gao Zhibin , Hiroshima Kenzo , Wu Xiaodong , Zhang Jixian , Shao Dichu , Shao Huajiang , Yang Hanqing , Yusa Toshikazu , Kiyokawa Takako , Kobayashi Makio , Shinohara Yasushi , Røe Oluf D. , Zhang Xing , Morinaga Kenji 
Published: July 2015

BackgroundChrysotile had been used in asbestos textile workshops in Southeast China but a clear relation to mesothelioma is lacking.MethodsAll patients diagnosed with mesothelioma from 2003 to 2010 at Yuyao People's Hospital were re‐evaluated by multiple expert pathologists with immunohistochemistry and asbestos exposure data were collected.ResultsOf 43 patients with a mesothelioma diagnosis, 19 peritoneal and nine pleural cases were finally diagnosed as mesothelioma. All were females, and the mean age of the patients with peritoneal or pleural mesothelioma was 52.4 and 58.2 years, respectively. All these cases had a history of domestic or occupational exposure to chrysotile. Two‐thirds of the patients were from two adjoining towns with multiple small asbestos textile workshops. Contamination of tremolite was estimated to be less than 0.3%.ConclusionsThis is a report of mesothelioma in women exposed to chrysotile asbestos at home and at work, with an over‐representation of peritoneal mesothelioma. Am. J. Ind. Med. 58:1040–1049, 2015. © 2015 Wiley Periodicals, Inc.
Factors affecting high school teacher adoption, sustainability, and fidelity to the “Youth@Work: Talking Safety” curriculum
Authors: Rauscher Kimberly J. , Casteel Carri , Bush Diane , Myers Douglas J. 
Published: July 2015

BackgroundOur objective was to identify individual‐ and organizational‐level factors that affect high school teacher adoption, sustainability, and fidelity to the occupational safety and health curriculum, “Youth@Work: Talking Safety.”MethodsWe analyzed survey data collected from 104 high school teachers across the US who were trained in the curriculum since 2004. Linear and Cox regression were used to examine bivariate associations between individual and organizational‐level factors and the outcomes of interest.ResultsExcept for perceived complexity, all individual‐level factors (acceptance, enthusiasm, teaching methods fit, and self‐efficacy) were associated with one or more outcomes of interest (P‐values ranged from <0.001 to 0.031). Priority for non‐academic courses (P = 0.035) and supportive organizational climate (P = 0.037) were the organizational‐level factors associated with sustainability and number of lessons delivered, respectively.ConclusionsConsistent with the literature, individual‐level factors influenced teacher adoption and, to a lesser extent, sustainability, and fidelity to the Youth@Work: Talking Safety curriculum and should be considered in attempts to promote the curriculum's use in high schools. Am. J. Ind. Med. 58:1288–1299, 2015. © 2015 Wiley Periodicals, Inc.
Irrelevance of Carbon Monoxide Poisoning in the Methanol Oxidation Reaction on a PtRu Electrocatalyst
Authors: Chen De‐Jun , Tong YuYe J. 
Published: July 2015

AbstractBased on detailed in situ attenuated total‐reflection–surface‐enhanced IR reflection absorption spectroscopy (ATR‐SEIRAS) studies of the methanol oxidation reaction (MOR) on Ru/Pt thin film and commercial Johnson–Matthey PtRu/C, a revised MOR enhancement mechanism is proposed in which CO on Pt sites is irrelevant but instead Pt‐Ru boundary sites catalyze the oxygen insertion reaction that leads to the formation of formate and enhances the direct reaction pathway.
From Silylone to an Isolable Monomeric Silicon Disulfide Complex
Authors: Xiong Yun , Yao Shenglai , Müller Robert , Kaupp Martin , Driess Matthias 
Published: July 2015

AbstractThe synthesis and characterization of the first bis‐N‐heterocyclic carbene stabilized monomeric silicon disulfide (bis‐NHC)SiS2 2 (bis‐NHC=H2C[{NC(H)C(H)N(Dipp)}C:]2, Dipp=2,6‐iPr2C6H3) is reported. Compound 2 is prepared in 89 % yield from the reaction of the zero‐valent silicon complex (′silylone′) 1 [(bis‐NHC)Si] with elemental sulfur. Compound 2 can react with GaCl3 in acetonitrile to give the corresponding (bis‐NHC)Si(S)S→GaCl3 Lewis acid–base adduct 3 in 91 % yield. Compound 3 is also accessible through the reaction of the unprecedented silylone‐GaCl3 adduct [(bis‐NHC)Si→GaCl3] 4 with elemental sulfur. Compounds 2, 3, and 4 could be isolated and characterized by elemental analyses, HR‐MS, IR, 13C‐ and 29Si‐NMR spectroscopy. The structures of 3 and 4 could be determined by single‐crystal X‐ray diffraction analyses. DFT‐derived bonding analyses of 2 and 3 exhibited highly polar SiS bonds with moderate pπ–pπ bonding character.
Decarboxylative Alkynylation and Carbonylative Alkynylation of Carboxylic Acids Enabled by Visible‐Light Photoredox Catalysis
Authors: Zhou Quan‐Quan , Guo Wei , Ding Wei , Wu Xiong , Chen Xi , Lu Liang‐Qiu , Xiao Wen‐Jing 
Published: July 2015

AbstractVisible‐light‐induced photocatalytic decarboxylative alkynylations of carboxylic acids have been developed for the first time. The reaction features extremely mild conditions, broad substrate scope, and avoids additional oxidants. Importantly, a decarboxylative carbonylative alkynylation has also been carried out in the presence of carbon monoxide (CO) under photocatalytic conditions, which affords valuable ynones in high yields at room temperature.
Multiply Confined Nickel Nanocatalysts Produced by Atomic Layer Deposition for Hydrogenation Reactions
Authors: Gao Zhe , Dong Mei , Wang Guizhen , Sheng Pei , Wu Zhiwei , Yang Huimin , Zhang Bin , Wang Guofu , Wang Jianguo , Qin Yong 
Published: July 2015

AbstractTo design highly efficient catalysts, new concepts for optimizing the metal–support interactions are desirable. Here we introduce a facile and general template approach assisted by atomic layer deposition (ALD), to fabricate a multiply confined Ni‐based nanocatalyst. The Ni nanoparticles are not only confined in Al2O3 nanotubes, but also embedded in the cavities of Al2O3 interior wall. The cavities create more Ni–Al2O3 interfacial sites, which facilitate hydrogenation reactions. The nanotubes inhibit the leaching and detachment of Ni nanoparticles. Compared with the Ni‐based catalyst supported on the outer surface of Al2O3 nanotubes, the multiply confined catalyst shows a striking improvement of catalytic activity and stability in hydrogenation reactions. Our ALD‐assisted template method is general and can be extended for other multiply confined nanoreactors, which may have potential applications in many heterogeneous reactions.
Covalently Binding Atomically Designed Au9 Clusters to Chemically Modified Graphene
Authors: Bosch‐Navarro Concha , Laker Zachary P. L. , Thomas Helen R. , Marsden Alexander J. , Sloan Jeremy , Wilson Neil R. , Rourke Jonathan P. 
Published: July 2015

AbstractAtomic‐resolution transmission electron microscopy was used to identify individual Au9 clusters on a sulfur‐functionalized graphene surface. The clusters were preformed in solution and covalently attached to the surface without any dispersion or aggregation. Comparison of the experimental images with simulations allowed the rotational motion, without lateral displacement, of individual clusters to be discerned, thereby demonstrating a robust covalent attachment of intact clusters to the graphene surface.
A flexible, preclinical, medical school curriculum increases student academic productivity and the desire to conduct future research
Authors: Peacock Justin G. , Grande Joseph P. 
Published: July 2015

AbstractIn 2006, small blocks of flexible curriculum time, termed selectives, were implemented in the Mayo Medical School preclinical curriculum. Selectives permitted students to pursue professional endeavors, such as research, service, and career exploration, in the preclinical years. The purpose of this study was to survey current and former Mayo medical students regarding the impact of selectives on their research interest and productivity. The authors surveyed 377 current and former Mayo Medical School students from the 2004 to 2014 graduating classes, 154 participants (41% response rate) responded to the survey. The classes were grouped into pre‐ and postselective groups for the comparison studies. Postselective students published significantly more (p = 0.003) and gave significantly more presentations (p = 0.0007) during medical school than preselective students. Thirty‐four (72% of the postselective respondents) indicated that selectives had a strong or very strong impact on their current research interest. Respondents spent an average of 4.0 [3.0–5.0] weeks of Selective time on research, resulting in 1.8 [1.4–2.2] publications and 1.8 [1.4–2.2] presentations, which represented 52.5% [40.0–65.0%] and 47.3% [37.1–57.4%] of the students’ total medical school publications and presentations, respectively. Flexible selective time during the preclinical years results in significantly more medical student academic productivity. © 2015 by The International Union of Biochemistry and Molecular Biology, 43(5):384–390, 2015.
Characterizing Graphitic Carbon with X‐ray Photoelectron Spectroscopy: A Step‐by‐Step Approach
Authors: Blume Raoul , Rosenthal Dirk , Tessonnier Jean‐Philippe , Li Henan , Knop‐Gericke Axel , Schlögl Robert 
Published: July 2015

AbstractX‐ray photoelectron spectroscopy (XPS) is a widely used technique for characterizing the chemical and electronic properties of highly ordered carbon nanostructures, such as carbon nanotubes and graphene. However, the analysis of XPS data—in particular the C 1s region—can be complex, impeding a straightforward evaluation of the data. In this work, an overview of extrinsic and intrinsic effects that influence the C 1s XPS spectra—for example, photon broadening or carbon–catalyst interaction—of various graphitic samples is presented. Controlled manipulation of such samples is performed by annealing, sputtering, and oxygen functionalization to identify different CC bonding states and assess the impact of the manipulations on spectral line shapes and their binding energy positions. With high‐resolution XPS and XPS depth profiling, the spectral components arising from disordered carbon and surface‐defect states can be distinguished from aromatic sp2 carbon. These findings illustrate that both spectral line shapes and binding energy components must be considered in the analysis of potentially defective surfaces of carbon materials. The sp2 peak, characteristic of aromatic carbon, features a strong asymmetry that changes with the curvature of the sample surface and, thus, cannot be neglected in spectral analysis. The applied deconvolution strategy may provide a simple guideline to obtaining high‐quality fits to experimental data on the basis of a careful evaluation of experimental conditions, sample properties, and the limits of the fit procedure.
Li+‐Ion Extraction/Insertion of Ni‐Rich Li1+x(NiyCozMnz)wO2 (0.005<x<0.03; y:z=8:1, w≈1) Electrodes: In Situ XRD and Raman Spectroscopy Study
Authors: Ghanty Chandan , Markovsky Boris , Erickson Evan M. , Talianker Michael , Haik Ortal , Tal‐Yossef Yosef , Mor Albert , Aurbach Doron , Lampert Jordan , Volkov Aleksei , Shin Ji‐Yong , Garsuch Arnd , Chesneau Frederick Francois , Erk Christoph 
Published: July 2015

AbstractWe present the results of our in situ X‐ray diffraction (XRD) and Raman spectroscopy measurements for the first Li‐ion extraction/insertion (charge/discharge) processes of nickel‐rich Li1+x(NiyCozMnz)wO2 (0.005<x<0.03; y:z=8:1, w is nearly 1) electrodes in Li cells. These cells were of a special design that provide in situ (at‐work) measurements during electrochemical polarization and can be used for regular cycling tests of practical Li‐battery electrodes. By using XRD measurements, it was established that, upon Li+ extraction, these cathode materials demonstrate structural transformations of the hexagonal phase (space group R‐3m) H1 to another hexagonal phase H2 (with a lower Li‐ion content in the lattice) and to domains comprising both of these two phases, coexisting at potentials E≈4.2–4.3 V. The above phases differ by the a and c lattice constants, which is in agreement with literature results. Evolution of the lattice constants with the electrode potential upon charge/discharge is shown to be in correlation with the differential capacity dQ/dE versus E plots and with some Raman parameters calculated from complementary in situ studies of these cathode materials by Raman spectroscopy.
Asymmetric Total Synthesis of Indole Alkaloids Containing an Indoline Spiroaminal Framework
Authors: Yamada Takeshi , Ideguchi‐Matsushita Tetsuya , Hirose Tomoyasu , Shirahata Tatsuya , Hokari Rei , Ishiyama Aki , Iwatsuki Masato , Sugawara Akihiro , Kobayashi Yoshinori , Otoguro Kazuhiko , Ōmura Satoshi , Sunazuka Toshiaki 
Published: July 2015

AbstractThe total synthesis of the indole alkaloids, neoxaline, oxaline and meleagrin A, all containing a unique indoline spiroaminal framework, was accomplished through the stereoselective introduction of a reverse prenyl group to the congested benzylic carbon of furoindoline, a two‐pot transformation of indoline (containing three nitrogen atoms at appropriate positions) to the featured indoline spiroaminal framework, and elimination of carbonate assisted by the adjacent imidazole moiety to construct the (E)‐dehydrohistidine. The absolute stereochemistry of neoxaline was elucidated through our total synthesis. In addition, we evaluated the bioactivity, especially the anti‐infectious properties, of neoxaline and oxaline, and of some synthetic intermediates.
A Simple Synthesis of Triangular All‐Metal Aromatics Allowing Access to Isolobal All‐Metal Heteroaromatics
Authors: Wang Yanlan , Deyris Pierre‐Alexandre , Caneque Tatiana , Blanchard Florent , Li Yanling , Bigi Franca , Maggi Raimondo , Blanchard Sebastien , Maestri Giovanni , Malacria Max 
Published: July 2015

AbstractA simple synthetic method allows the one‐pot assembly of C3‐symmetric, 44‐core‐valence‐electron, triangular Pd or Pt clusters and their heterobimetallic mixed Pd/Pt analogues. These mixed metal complexes are the first examples of stable triangular all‐metal heteroaromatics. In contrast to traditional heteroaromatic molecules formed combining main‐group elements, they actually retain structural and electronic features of their homonuclear analogues.
A corrected profile likelihood method for survival data with covariate measurement error under the Cox model
Authors: Yan Ying , Yi Grace Y. 
Published: July 2015

AbstractIn survival analysis, covariate measurement error has been studied extensively for the Cox model. In this article, we propose a corrected profile likelihood approach, and show that many existing methods can be unified by our approach. Furthermore, we extend our discussion to general measurement error and Berkson models, as opposed to the classical additive error model that has been widely used in the literature. We investigate the impact of model misspecification of the measurement error process and uncover interesting findings. Empirical studies are carried out to illustrate the usage of the proposed methods and to assess their performance.The Canadian Journal of Statistics43: 454–480; 2015 © 2015 Statistical Society of Canada
Effectiveness of an interdisciplinary palliative care intervention for family caregivers in lung cancer
Authors: Sun Virginia , Grant Marcia , Koczywas Marianna , Freeman Bonnie , Zachariah Finly , Fujinami Rebecca , Ferraro Catherine Del , Uman Gwen , Ferrell Betty 
Published: July 2015

BACKGROUNDFamily caregivers (FCGs) experience significant deteriorations in quality of life while caring for patients with lung cancer. In this study, the authors tested the effectiveness of an interdisciplinary palliative care intervention for FCGs of patients diagnosed with stage I through IV nonsmall cell lung cancer.METHODSFCGs who were identified by patients as their primary caregivers were enrolled in a prospective, quasi‐experimental study in which the usual care group was accrued first followed by the intervention group. FCGs in the intervention group were presented at interdisciplinary care meetings, and they also received 4 educational sessions organized in the physical, psychological, social, and spiritual domains. The sessions included self‐care plans to support the FCG's own needs. Caregiver burden, caregiving skills preparedness, psychological distress, and FCG quality of life were assessed at baseline and after 12 weeks using validated measures.RESULTSIn total, 366 FCGs were included in the primary analysis. FCGs who received the interdisciplinary palliative care intervention had significantly better scores for social well being (5.84 vs 6.86; P < .001) and had lower psychological distress scores (4.61 vs 4.20; P = .010) at 12 weeks compared with FCGs in the usual care group. FCGs in the intervention group also had significantly less caregiver burden compared with FCGs in the usual care group (P = .008).CONCLUSIONSAn interdisciplinary approach to palliative care in lung cancer resulted in statistically significant improvements in FCG's social well being and psychological distress and in less caregiver burden. Cancer 2015;121:3737–3745. © 2015 American Cancer Society.
Automated 3‐dimensional morphologic analysis of sputum specimens for lung cancer detection: Performance characteristics support use in lung cancer screening
Authors: Wilbur David C. , Meyer Michael G. , Presley Chris , Aye Ralph W. , Zarogoulidis Paul , Johnson Douglas W. , Peled Nir , Nelson Alan C. 
Published: July 2015

BACKGROUNDThe LuCED Lung Test comprises an automated 3‐dimensional morphologic analysis of epithelial cells in sputum. For each cell, 594 morphology‐based features are measured to drive algorithmic classifiers that quantitatively assess whether neoplastic cells are present. The current interim clinical study involves sputum samples from patients with known benign and malignant outcomes to assess the feasibility of LuCED as an adjunctive test after suspicious low‐dose computed tomography (LDCT) results or as an independent screening test for lung cancer.METHODSSputum samples were fixed, enriched for epithelial cells, and analyzed with a 3‐dimensional cell scanner called Cell‐CT. Candidate abnormal cells were identified by the classifiers for manual review. The sensitivity, specificity, and negative and positive predictive values were calculated for the detection of neoplastic cases.RESULTSA total of 91 sputum samples from patients with confirmed lung cancer (49 patients) and patients with no known malignancy (42 patients) were evaluated. After cytology review, sensitivity in the positive group was 91.8%, and specificity was 95.2%. Specificity was not 100% because there were 2 cases in which abnormal cells were identified by the Cell‐CT that were confirmed as such at the time of manual cytology review. However, at the time of last follow‐up, malignancy had not been detected in these 2 cases. Modeling in a population with a 1% prevalence of lung cancer, the positive and negative predictive values would be 95.4% and 99.9%, respectively.CONCLUSIONSLuCED testing is highly sensitive and specific for the detection of lung cancer and has potential value as an adjunctive test after suspicious LDCT findings or as a primary screening test in which LuCED‐positive cases would be triaged to diagnostic CT. Further prospective studies currently are underway to evaluate its full usefulness. Cancer (Cancer Cytopathol) 2015;123:548–556. © 2015 American Cancer Society.
Uniqueness of Radial Solutions for the Fractional Laplacian
Authors: Frank Rupert L. , Lenzmann Enno , Silvestre Luis 
Published: July 2015

AbstractWe prove general uniqueness results for radial solutions of linear and nonlinear equations involving the fractional Laplacian (−Δ)s with s ∊ (0,1) for any space dimensions N ≥ 1. By extending a monotonicity formula found by Cabré and Sire , we show that the linear equation

urn:x-wiley:00103640:media:cpa21591:cpa21591-math-0001

has at most one radial and bounded solution vanishing at infinity, provided that the potential V is radial and nondecreasing. In particular, this result implies that all radial eigenvalues of the corresponding fractional Schrödinger operator H = (−Δ)s + V are simple. Furthermore, by combining these findings on linear equations with topological bounds for a related problem on the upper half‐space , we show uniqueness and nondegeneracy of ground state solutions for the nonlinear equation

urn:x-wiley:00103640:media:cpa21591:cpa21591-math-0003

for arbitrary space dimensions N ≥ 1 and all admissible exponents α > 0. This generalizes the nondegeneracy and uniqueness result for dimension N = 1 recently obtained by the first two authors and, in particular, the uniqueness result for solitary waves of the Benjamin‐Ono equation found by Amick and Toland .© 2016 Wiley Periodicals, Inc.
Small‐Noise Analysis and Symmetrization of Implicit Monte Carlo Samplers
Authors: Goodman Jonathan , Lin Kevin K. , Morzfeld Matthias 
Published: July 2015

AbstractImplicit samplers are algorithms for producing independent, weighted samples from multivariate probability distributions. These are often applied in Bayesian data assimilation algorithms. We use Laplace asymptotic expansions to analyze two implicit samplers in the small noise regime. Our analysis suggests a symmetrization of the algorithms that leads to improved implicit sampling schemes at a relatively small additional cost. Computational experiments confirm the theory and show that symmetrization is effective for small noise sampling problems.© 2016 Wiley Periodicals, Inc.