bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vivre dans une société paradoxante
Authors: de Gaulejac Vincent 
Published: November 2017

L’anxiété est la face d’ombre de la culture de la haute performance. L’échec est renvoyé à l’individu comme le fruit de son insuffisance, comme un symptôme d’une incapacité mentale ou psychologique, alors qu’il est aussi (surtout ?) la conséquence d’exigences et de contraintes sociales de plus en plus élevées. D’où une interrogation sur la réciprocité des influences entre le social et le psychique, par exemple dans le développement des troubles bipolaires caractéristique des sociétés hypermodernes, ou encore dans le sentiment de harcèlement, symptôme éprouvé dans des grandes entreprises qui mettent leur personnel sous tension et les confrontent à des injonctions paradoxales en continu. C’est la société tout entière qui semble devenir paradoxante. Entre adaptation et résistance, les individus tentent de se protéger en mettant en place des réactions défensives et des mécanismes de dégagement.
Simulation of climate, ice sheets and CO2 evolution during the last four glacial cycles with an Earth system model of intermediate complexity
Authors: Ganopolski Andrey , Brovkin Victor 
Published: November 2017

Abstract. In spite of significant progress in paleoclimate reconstructions and modelling of different aspects of the past glacial cycles, the mechanisms which transform regional and seasonal variations in solar insolation into long-term and global-scale glacial–interglacial cycles are still not fully understood – in particular, in relation to CO2 variability. Here using the Earth system model of intermediate complexity CLIMBER-2 we performed simulations of the co-evolution of climate, ice sheets, and carbon cycle over the last 400 000 years using the orbital forcing as the only external forcing. The model simulates temporal dynamics of CO2, global ice volume, and other climate system characteristics in good agreement with paleoclimate reconstructions. These results provide strong support for the idea that long and strongly asymmetric glacial cycles of the late Quaternary represent a direct but strongly nonlinear response of the Northern Hemisphere ice sheets to orbital forcing. This response is strongly amplified and globalised by the carbon cycle feedbacks. Using simulations performed with the model in different configurations, we also analyse the role of individual processes and sensitivity to the choice of model parameters. While many features of simulated glacial cycles are rather robust, some details of CO2 evolution, especially during glacial terminations, are sensitive to the choice of model parameters. Specifically, we found two major regimes of CO2 changes during terminations: in the first one, when the recovery of the Atlantic meridional overturning circulation (AMOC) occurs only at the end of the termination, a pronounced overshoot in CO2 concentration occurs at the beginning of the interglacial and CO2 remains almost constant during the interglacial or even declines towards the end, resembling Eemian CO2 dynamics. However, if the recovery of the AMOC occurs in the middle of the glacial termination, CO2 concentration continues to rise during the interglacial, similar to the Holocene. We also discuss the potential contribution of the brine rejection mechanism for the CO2 and carbon isotopes in the atmosphere and the ocean during the past glacial termination.
An Energetic Perspective on United States Tropical Cyclone Landfall Droughts
Authors: Truchelut Ryan E. , Staehling Erica M. 
Published: November 2017

AbstractThe extremely active 2017 Atlantic hurricane season concluded an extended period of quiescent continental United States tropical cyclone landfall activity that began in 2006, commonly referred to as the landfall drought. We introduce an extended climatology of U.S. tropical cyclone activity based on accumulated cyclone energy (ACE) and use this data set to investigate variability and trends in landfall activity. The drought years between 2006 and 2016 recorded an average value of total annual ACE over the U.S. that was less than 60% of the 1900–2017 average. Scaling this landfall activity metric by basin‐wide activity reveals a statistically significant downward trend since 1950, with the percentage of total Atlantic ACE expended over the continental U.S. at a series minimum during the recent drought period.
Fish‐Microarray: A Miniaturized Platform for Single‐Embryo High‐Throughput Screenings
Authors: Popova Anna A. , Marcato Daniel , Peravali Ravindra , Wehl Ilona , Schepers Ute , Levkin Pavel A. 
Published: November 2017

AbstractSmall molecule high‐throughput screenings are essential for the fields of drug discovery and toxicology. Such screenings performed on whole animals are more physiologically relevant leading to more predictive results. However, due to challenges in automation, high costs and absence of miniaturized solutions for animal‐based experiments, high throughput screenings based on animal models are still in its infancy. Here a platform for miniaturized high throughput whole‐organism screenings is presented. The new platform is based on patterns of hydrophilic spots separated by superhydrophobic borders. The difference in wettability of spots and borders generates the effect of discontinuous dewetting and allows for formation of arrays of microdroplets that incorporate single fish embryos. Due to the flat border‐less nature of the platform, the system is compatible with single‐step collection of embryos and pipetting‐free parallel addition of chemical libraries using the “sandwiching method.” The system is miniaturized and allows for incubation of embryos in volumes as low as 5 µL. Finally, the platform realizes surface tension based immobilization of single embryos inside of each microcompartment and permits high‐throughput microscopic analysis directly on the platform. Thus, this method combines the advantages of microarrays, such as high‐throughput and simplicity, with the power of in vivo experiments.
In‐Plane Assembled Orthorhombic Nb2O5 Nanorod Films with High‐Rate Li+ Intercalation for High‐Performance Flexible Li‐Ion Capacitors
Authors: Deng Bohua , Lei Tianyu , Zhu Weihua , Xiao Liang , Liu Jinping 
Published: November 2017

AbstractOrganic hybrid supercapacitors that consist of a battery electrode and a capacitive electrode show greatly improved energy density, but their power density is generally limited by the poor rate capability of battery‐type electrodes. In addition, flexible organic hybrid supercapacitors are rarely reported. To address the above issues, herein an in‐plane assembled orthorhombic Nb2O5 nanorod film anode with high‐rate Li+ intercalation to develop a flexible Li‐ion hybrid capacitor (LIC) is reported. The binder‐/additive‐free film exhibits excellent rate capability (≈73% capacity retention with the rate increased from 0.5 to 20 C) and good cycling stability (>2500 times). Kinetic analyses reveal that the high rate performance is mainly attributed to the excellent in‐plane assembly of interconnected single‐crystalline Nb2O5 nanorods on the current collector, ensuring fast electron transport, facile Li‐ion migration in the porous film, and greatly reduced ion‐diffusion length. Using such a Nb2O5 film as anode and commercial activated carbon as cathode, a flexible LIC is designed. It delivers both high gravimetric and high volumetric energy/power densities (≈95.55 Wh kg−1/5350.9 W kg−1; 6.7 mW h cm−3/374.63 mW cm−3), surpassing previous typical Li‐intercalation electrode‐based LICs. Furthermore, this LIC device still keeps good electrochemical attributes even under serious bending states (30°–180°).
Generation of One‐Way Gaussian Steering by Gaussian Channel and Converting One‐Way Gaussian Steering by Beamsplitters
Authors: Wang Zhong‐Xiao , Gao Yong‐Pan , Wang Tie‐Jun , Wang Chuan 
Published: November 2017

AbstractGaussian steering is used to characterize the intrinsic quantum correlation of Gaussian states under Gaussian measurement. Here we study the generation of one‐way Gaussian steering and the conversion of one‐way Gaussian steering. It is found that one‐way Gaussian steering could be generated by using Gaussian channels, either the Gaussian lossy channel or the Gaussian amplification channel. Exploiting the one‐way Gaussian steering in a two‐partite quantum system consists of two subsystems marked with A and B, one‐way Gaussian steering (steering from A to B) can be converted to the other one‐way Gaussian steering (steering from B to A) using linear optics, and vice versa.
Pair Events in Superluminal Optics
Authors: Nemiroff Robert J. 
Published: November 2017

AbstractWhen an object moves faster than emissions it creates, it may appear at two positions simultaneously. The appearance or disappearance of this bifurcation is referred to as a pair event. Inherently convolved with superluminal motion, pair events have no subluminal counterparts. Common examples of superluminal motions that exhibit pair events include Cherenkov radiation, sonic booms, illumination fronts from variable light sources, and rotating beams. The minimally simple case of pair events from a single massive object is explored here: uniform linear motion. A pair event is perceived when the radial component of the object's speed toward the observer drops from superluminal to subluminal. Emission from the pair creation event will reach the observer before emission from either of the two images created. Potentially observable image pair events are described for sonic booms and Cherenkov light. To date, no detection of discrete images following a projectile pair event have ever been reported, and so the pair event nature of sonic booms and Cherenkov radiation, for example, remains unconfirmed. Recent advances in modern technology have made such pair event tracking feasible. If measured, pair events could provide important information about object distance and history.
Monodisperse N‐Doped Graphene Nanoribbons Reaching 7.7 Nanometers in Length
Authors: Cortizo‐Lacalle Diego , Mora‐Fuentes Juan P. , Strutyński Karol , Saeki Akinori , Melle‐Franco Manuel , Mateo‐Alonso Aurelio 
Published: November 2017

AbstractThe properties of graphene nanoribbons are highly dependent on structural variables such as width, length, edge structure, and heteroatom doping. Therefore, atomic precision over all these variables is necessary for establishing their fundamental properties and exploring their potential applications. An iterative approach is presented that assembles a small and carefully designed molecular building block into monodisperse N‐doped graphene nanoribbons with different lengths. To showcase this approach, the synthesis and characterisation of a series of nanoribbons constituted of 10, 20 and 30 conjugated linearly‐fused rings (2.9, 5.3, and 7.7 nm in length, respectively) is presented.
Macrolide Synthesis through Intramolecular Oxidative Cross‐Coupling of Alkenes
Authors: Jiang Bing , Zhao Meng , Li Shu‐Sen , Xu Yun‐He , Loh Teck‐Peng 
Published: November 2017

AbstractA RhIII‐catalyzed intramolecular oxidative cross‐coupling between double bonds for the synthesis of macrolides is described. Under the optimized reaction conditions, macrocycles containing a diene moiety can be formed in reasonable yields and with excellent chemo‐ and stereoselectivity. This method provides an efficient approach to synthesize macrocyclic compounds containing a 1,3‐conjugated diene structure.
Comparative transcriptome analysis provides insights of anti‐insect molecular mechanism of Cassia obtusifolia trypsin inhibitor against Pieris rapae
Authors: Xiang Mian , Zhang Xian , Deng Yin , Li Yangyang , Yu Jihua , Zhu Jianquan , Huang Xinhe , Zhou Jiayu , Liao Hai 
Published: November 2017

AbstractPieris rapae, a serious Lepidoptera pest of cultivated crucifers, utilizes midgut enzymes to digest food and detoxify secondary metabolites from host plants. A recombinant trypsin inhibitor (COTI) from nonhost plant, Cassia obtusifolia, significantly decreased activities of trypsin‐like proteases in the larval midgut on Pieris rapae and could suppress the growth of larvae. In order to know how COTI took effect, transcriptional profiles of P. rapae midgut in response to COTI was studied. A total of 51,544 unigenes were generated and 45.86% of which had homologs in public databases. Most of the regulated genes associated with digestion, detoxification, homeostasis, and resistance were downregulated after ingestion of COTI. Meanwhile, several unigenes in the integrin signaling pathway might be involved in response to COTI. Furthermore, using comparative transcriptome analysis, we detected differently expressing genes and identified a new reference gene, UPF3, by qRT‐polymerase chain reaction (PCR). Therefore, it was suggested that not only proteolysis inhibition, but also suppression of expression of genes involved in metabolism, development, signaling, and defense might account for the anti‐insect resistance of COTI.
A new Wavelet Method for Variable‐Order Fractional Optimal Control Problems
Authors: Heydari Mohammad Hossein , Avazzadeh Zakieh 
Published: November 2017

AbstractIn this paper, a new computational method based on the Legendre wavelets (LWs) is proposed for solving a class of variable‐order fractional optimal control problems (V‐FOCPs). To do this, a new operational matrix of variable‐order fractional integration (OMV‐FI) in the Riemann‐Liouville sense for the LWs is derived and used to obtain an approximate solution for the problem under study. Along the way the hat functions (HFs) are introduced and employed to derive a general procedure to compute this matrix. In the proposed method, the variable‐order fractional dynamical system is transformed to an equivalent variable‐order fractional integro‐differential dynamical system, at first. Then, the highest integer order of the derivative of the state variable and the control variable are expanded by the LWs with unknown coefficients. Next, the OMV‐FI in the the Riemann‐Liouville sense together with some properties of the LWs are employed to achieve a nonlinear algebraic equation in place of the performance index and a nonlinear system of algebraic equations in place of the dynamical system in terms of the unknown coefficients. Finally, the method of constrained extremum is applied which consists of adjoining the constraint equations derived from the given dynamical system to the performance index by a set of undetermined Lagrange multipliers. As a result, the necessary conditions of optimality are derived as a system of algebraic equations in the unknown coefficients of the state variable, control variable and Lagrange multipliers. Furthermore, the efficiency and accuracy of the proposed method are demonstrated for some concrete examples. The obtained results show that the proposed method is very efficient and accurate.
Diversity of Polyketide Chains Achieved by Deleting the Tailoring Genes in the Biosynthesis of Ansatrienins
Authors: Wang Jianxiong , Li Xiaoman , Lu Chunhua , Shen Yuemao 
Published: November 2017

AbstractThe ast gene cluster (GenBank accession numbers KF813023.1 and KP284551) was characterized to be responsible for the biosynthesis of ansatrienins in Streptomyces sp. XZQH13, which contains astC, astF1, and astF2 genes involved in the assembly of the N‐cyclohexanoyl d‐alanyl side chain and the hydroxylation of C‐19, respectively. Further to investigating the biosynthetic mechanism of ansatrienins, herein we constructed the mutant strains XZQH13OEΔastF2 and XZQH13OEΔastCΔastF2. Three new ansatrienin analogues, namely, ansatrienols I–K (1–3), along with trienomycinol (4) and 3‐O‐demethyltrienomycinol (5), were isolated from the XZQH13OEΔastCΔastF2 strain, and trienomycin A (6) and trienomycin G (7) were isolated from the XZQH13OEΔastF2 strain. Their structures were determined by a combination of high‐resolution MS (ESI) and 1D and 2D NMR spectroscopy. Accordingly, a pathway for the biosynthesis of these new ansatrienins was proposed.
High Spin Ground States in Matryoshka Actinide Nanoclusters: A Computational Study
Authors: Hu Han‐Shi , Kaltsoyannis Nikolas 
Published: November 2017

AbstractInspired by the experimentally synthesized Na12@[(UO2)(O2)1.5]208− (“Na12@U20”) cluster, we have explored computationally the substitution of the Na cations by many other metals. 6 other M12@U20 systems are found to be stable (M=K+, Rb+, Cs+, Ag+, Mg2+, Fe2+). For 3 of these (Mg2+, Ag+ and Na+), the cluster can support a group 16 dianion at its center, forming a new type of Matryoshka (“Russian Doll”) actinide nanocluster E@M12@U20 (E=S2−, Se2−, Te2−, and Po2−). These systems have 3‐shell, onion‐like geometries with nearly perfect Ih symmetry. Seeking to create clusters with very high spin ground states, we have replaced M by Mn2+ and U20 by Np20 and Pu20, generating clusters with maximum possible S values of 80/2 and 100/2 respectively. Only in the presence of a central S2−, however, are these electronic configurations the most stable; the novel Matryoshka Pu nanocluster S@Mn12@Pu20 is predicted to have the highest ground state spin yet reported for a molecular cluster.
Detection of Sotatercept (ACE‐011) in human serum by SAR‐PAGE and western single blotting
Authors: Reichel Christian , Farmer Letizia , Gmeiner Günter , Walpurgis Katja , Thevis Mario 
Published: November 2017

AbstractA method for the detection of Sotatercept (ACE‐011, ACVR2A‐Fc) in human serum is presented. The method is a modification of a recently published protocol for Luspatercept (ACE‐536, ACVR2B‐Fc), another erythropoiesis stimulating fusion protein. Out of 27 tested antibodies against either the extracellular domain of ACVR2A or the full‐length protein, only 4 antibodies bound strongly enough to Sotatercept for usage with immunoprecipitation followed by SAR‐PAGE and Western single blotting. The adapted protocol allows the detection of 0.1 ng/mL Sotatercept in just 50 μL human serum. None of the 3 commercial ACVR2‐ELISAs was able to detect Sotatercept and the 2 tested surrogate proteins, even in the μg/mL range. As for Luspatercept, only IPG‐IEF/2D‐PAGE generated discrete isoforms. Due to the long serum half‐life, the SAR‐PAGE method will be able to detect Sotatercept for several weeks and will be very useful in doping testing.
Solid Oxide Fuel Cell Fed Directly with Dry Glycerol
Authors: Lo Faro M. , Oliveira V. L. , Reis R. M. , Saglietti G. G. A. , Zignani S. C. , Trocino S. , Ticianelli E. A. , Aricò A. S. 
Published: November 2017

AbstractA solid oxide fuel cell (SOFC) was developed for the direct utilization of dry glycerol to produce electricity at 800 °C. A state‐of‐art SOFC anode was covered by a thin (<10 μm) electrocatalyst layer based on a Ni‐modified perovskite and ceria. This electrocatalyst layer worked as an internal integrated fuel processor to convert glycerol in syngas. A performance of about 850 mW cm−2 @ 0.6 V was achieved with dry glycerol. A life time test of 160 hrs showed no relevant occurrence of carbon deposits. The developed approach can provide a practical route to achieve effective fuel flexibility in SOFCs.
Prospective aquatic risk assessment for chemical mixtures in agricultural landscapes
Authors: Holmes Christopher M. , Brown Colin D. , Hamer Mick , Jones Russell , Maltby Lorraine , Posthuma Leo , Silberhorn Eric , Teeter Jerold Scott , Warne Michael St J , Weltje Lennart 
Published: November 2017

Abstract

Environmental risk assessment of chemical mixtures is challenging because of the multitude of possible combinations that may occur. Aquatic risk from chemical mixtures in an agricultural landscape was evaluated prospectively in 2 exposure scenario case studies: at field scale for a program of 13 plant-protection products applied annually for 20 yr and at a watershed scale for a mixed land-use scenario over 30 yr with 12 plant-protection products and 2 veterinary pharmaceuticals used for beef cattle. Risk quotients were calculated from regulatory exposure models with typical real-world use patterns and regulatory acceptable concentrations for individual chemicals. The results could differentiate situations when there was concern associated with single chemicals from those when concern was associated with a mixture (based on concentration addition) with no single chemical triggering concern. Potential mixture risk was identified on 0.02 to 7.07% of the total days modeled, depending on the scenario, the taxa, and whether considering acute or chronic risk. Taxa at risk were influenced by receiving water body characteristics along with chemical use profiles and associated properties. The present study demonstrates that a scenario-based approach can be used to determine whether mixtures of chemicals pose risks over and above any identified using existing approaches for single chemicals, how often and to what magnitude, and ultimately which mixtures (and dominant chemicals) cause greatest concern. Environ Toxicol Chem 2018;37:674–689. © 2017 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals, Inc. on behalf of SETAC.
Abstract
Acute and chronic mixture risk was assessed for aquatic organisms using field- and catchment-scale scenarios for multiple agricultural products applied annually up to 30 years (single year shown for clarity). Results identified potential risks, and determined whether mixtures of chemicals pose risks beyond any identified using existing approaches for single chemicals, how often and to what magnitude.
Cone calorimeter testing of foam core sandwich panels treated with intumescent paper underneath the veneer (FRV)
Authors: Dietenberger Mark A. , Shalbafan Ali , Welling Johannes 
Published: November 2017

SummarySurfaces of novel foam core sandwich panels were adhered with intumescent fire‐retardant paper underneath the veneers (FRV) to improve their flammability properties. The panels were evaluated by means of cone calorimeter test (ASTM E 1354). Variables tested were different surface layer treatments, adhesives used for veneering, surface layer thicknesses, and processing conditions, having the objective of obtaining similar or better flammability as that of solid particle boards. Previous research showed that sandwich panels without FRV compared to panels with FRV generally had much higher heat release rates, somewhat higher heat of combustion and much higher smoke production due to the polymeric foam component of tested panels. The present study shows that using FRV adhered to the surface layer of sandwich panels dramatically improved flammability properties; the best FRV performance resulted from panels produced with thicker face layer (5 mm) and lower press temperature (130°C) and adhered with an acrylic thixotropic adhesive. Such protected foam core particleboard has heat release rate profiles as low as that is typical of commercially available fire‐retardant–treated plywood, thus implying a low flammability rating when tested in accordance with both single burn item (Euro Class B anticipated) and steiner tunnel (North America Class A anticipated) tests.