bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Remark on the Sobolev Regularity of Classical Solutions to Uniformly Parabolic Equations
Authors: Milani Albert 
Published: November 2010

AbstractWe prove that C2+α,1+α/2 (Q̄) solutions of problem (1.6) below are in a subspace Hcm+2(Q) of Hm+2,(m+2)/2(Q) for all m ∈ ℕ, if f and the coefficients are in Hcm(Q)∪Cα,α/2 (Q̄). We apply this result to obtain global existence of Sobolev solutions to the quasilinear problem (1.26) below.
Complemented Copies of l1 in Spaces of Vector Measures and Applications
Authors: Randrianantoanina Narcisse 
Published: November 2010

AbstractLet X be a dual Banach space and Ω be a compact Hausdorff space. We give a characterization af those sequences in the space of all regular X‐ valued countably additive measures with bounded variation, defined on the σ‐ field ∑ of Borel subsets of Ω which generate complemented copies of l1, in terms of weak*‐densities. As an application, we prove that if a dual Banach space X has Pełczyński's property (V*) then so does the space of X‐ valued countably additive measures with the usual variation norm.
Infinitesimale Starrheit hermitescher Quadriken in allgemeiner Lage
Authors: Ežov V. , Schmalz G. 
Published: November 2010

AbstractIn dieser Arbeit wird gezeigt, daß hermitesche Quadriken der Kodimension k im C n+k mit 3 ≤ k ≤ n2‐−3 “in allgemeiner Lage” keine nichttrivialen Automorphismen besitzen, die in einparametrige Gruppen einbettbar sind. Dieses Resultat ist yon Bedeutung für die Konstruktion von Normalformen für CR‐Mannigfaltigkeiten höherer Kodimension.
What Are Signed Contents and Measures?
Authors: König Heinz 
Published: November 2010

AbstractThe paper develops the notion of signed contents and measures on the basis of a new definition. It form a common roof for some well‐known partial notions which appeared to be incompatible. The paper also redefines the notion of angular pairs of contents and measures, to the effect that the two notions are connected via an attended Jordan decomposition theorem. The decisive idea is a new difference formation for contents and measures.
The Connection between the Characteristic Roots and the Corresponding Solutions of a Single Linear Differential Equation with Comparable Coefficients
Authors: Lantsman M. H. 
Published: November 2010

AbstractGiven a linear differential equation of the form x (n) + a1 (t) x (n‐1) + …+ an (t) x = 0 with variable coefficients defined on the positive semi ‐axis for t ≫ 1. We denote its fundamental set of solutions (FSS) by {exp [∫ ri (t) dt] } (i = 1, 2,…,n). In this paper we look for the asymptotic connection (as t → ∞) between the logarithmic derivatives ri (t) of an FSS and of the roots of the characteristic equation yn + a1 (t) yn‐1 +… + an (t) = 0. We mainly consider the case when the coefficients of the equation and the characteristic roots are comparable and have the power order of growth for t → ∞. We discuss the conditions when the functions λii(t) are equivalent to the corresponding roots λii(t) of the characteristic equation as t → ∞.
Regularity of Distance Measures and Sets
Authors: Mattila Pertti , Sjölin Per 
Published: November 2010

AbstractLet μ be a Radon measure with compact support in IRn such that
equation image
We show that the imw of μ x μ under the distance map (x, y) → |x‐ y| is an absolutely continuous measure with density of class Ca‐(n+1)/2. As a corollary we get that If AC IRn is a Suslin set with Hausdorff dimension greater than (n+1)/2, then the distance set {|x‐y| : x, y ϵ A} has non‐empty interior.
Explicit Universal Deformations of Even Galois Representations
Authors: Böckle Gebhard 
Published: November 2010

AbstractWe investigate the case of deformations of even Galois representations. Our methods are the group theoretic ones mainly developed by Nigel Boston to study odd representations. We present conditions for Borel and tame cases under which the universal deformation ring is isomorphic to ℤp[[T]] and where we compute the universal deformation explicitly. Furthermore we produce a family of examples of totally real S3 extensions which satisfy the above conditions in the tame case and we give examples in the Borel case. Finally we study the change of the deformation space under enlarging the ramification and thus give an example of an even representation that is not twist‐finite.
On the Matrix Spectral Function of a Generalized Second‐Order Differential Operator in a Ramified Space
Authors: Weber Matthias 
Published: November 2010

AbstractThe existence of a unique n × n matrix spectral function is shown for a selfadjoint operator A in a Hilbert space L2α(m). This Hilbert space is a subspace of the product of spaces L2(mi) with measures m1, i = 1, n, having support in [0,∞]. The inner product in L2α (m) is the weighted sum of the inner products in the L2(mi), i.e., (f, g)m,α=∑αi(fi,gi)mi,f=(f1,…fn), g=(g1,…gn)∈Lα2(m), with positive constants αi = 1, …, n. The operator A is given by (A f)i = −Dmi Dx+ f, with generalized second order derivatives Dmi D+x. The elements of the domain of A have continuous representatives satisfying f1(0) fj(0), i, j = 1, n, and an additional gluing condition at 0.
Fatigue performance of injection‐molded short e‐glass fiber reinforced polyamide‐6,6. II. Effects of melt temperature and hold pressure
Authors: Zhou Yuanxin , Mallick P. K. 
Published: November 2010

AbstractTensile and fatigue properties of an injection molded short E‐glass fiber reinforced polyamide‐6,6 have been studied as a function of two key injection molding parameters, namely melt temperature and hold pressure. It was observed that tensile and fatigue strengths of specimens normal to the flow direction were lower than that in the flow direction, indicating inherent anisotropy caused by injection molding. Tensile and fatigue strengths of specimens with weld line were significantly lower than that without weld lines. For specimens in the flow direction, normal to the flow direction and with weld line, tensile strength and fatigue strength increased with increasing melt temperature as well as increasing hold pressure. The effect of specimen orientation on the tensile and fatigue strengths is explained in terms of the difference in fiber orientation and skin‐core morphology of the specimens. POLYM. COMPOS., 2011. © 2010 Society of Plastics Engineers.
Testing the biosocial model of borderline personality disorder: Results of a prospective 5‐year longitudinal study
Authors: Arens Elisabeth A. , Grabe Hans‐J. , Spitzer Carsten , Barnow Sven 
Published: November 2010

AbstractSince its initial formulation, the biosocial theory of borderline personality disorder (BPD) still lacks robust empirical evidence, given there are no prospective longitudinal studies testing the main assumptions of the model. The current study examined longitudinally whether temperamental traits harm avoidance (HA) and novelty seeking (NS), internalizing and externalizing disorders, trauma and perceived invalidating parenting style, as measured during adolescence, contributed to the risk of BPD, diagnosed on the basis of standardized clinical interviews 5 years later. Individuals with BPD (n = 17) from a community sample of 416 young adults were compared to individuals with depressive disorders (n = 17) and psychiatrically healthy subjects (n = 34). Results indicated that adolescent internalizing disorders as well as the interaction of HA and perceived maternal overprotection predicted the risk of BPD 5 years later. NS was not shown to be a predisposing vulnerability. Results are interpreted as confirmation of the biosocial model. Gender‐specific etiological differences are discussed. Copyright © 2010 John Wiley & Sons, Ltd.
Influences of axial field upon circular magnetization and eddy‐current anomaly factor in Fe‐based nanocrystalline wire
Authors: Li Y. F. , Vázquez M. 
Published: November 2010

AbstractFe‐based soft magnetic wire with transverse magnetic anisotropy was obtained by stress current annealing. Its circular permeability, µ = µ′ – jµ″, has been determined from the measurements of impedance, Z = R + jωL, as a function of frequency (f = 10 – 105 Hz), AC current amplitude (I = 0.1 – 100 mA) and DC bias field (H = 0 – 5.4 kA/m). An experimental study of the influence of H upon the circular magnetization and the f‐dependent µ = µ′ – jµ″ has been performed. It is concluded that the axial field, H, evolution of the circular permeability, µ = µ′ – jµ″, the relaxation frequency, fτ, and the eddy‐current anomaly factor, η, can be explained in terms of the modification of domain structure by the applied axial field H.
Langasite based miniaturized functional structures: Preparation, high‐temperature properties and applications
Authors: Sauerwald Jan , Richter Denny , Ansorge Erik , Schmidt Bertram , Fritze Holger 
Published: November 2010

AbstractLangasite single crystals show piezoelectrically excited bulk acoustic waves up to 1470 °C and are, therefore, used to prepare high‐temperature functional components such as membranes, cantilevers and field emission tips. The underlying concept includes monolithic structures to avoid thermal stress at elevated temperatures. In order to control the preparation processes, wet chemical etch rates, the transport of dopants and their impact on the materials properties of langasite are determined. Heavily Sr‐doped langasite shows a strong increase in conductivity which is used to realize monolithic electrodes by local doping. Further, the stability of small langasite structures is confirmed up to 1350 °C. Biconvex membranes could be operated in the fundamental and 3rd resonance mode up to 700 °C. The fundamental modes of those 16.3 MHz resonators show quality factors of 500 at the above‐mentioned temperature. Further, field emitter tips of 27 nm in radius are prepared and demonstrated to be operational up to at least 600 °C. The mechanical displacement and the electrical response of vibrating cantilevers is characterized simultaneously and found to be consistent. Finally, the feasibility of sensor film coated membrane arrays to distinguish between CO and H2at 600 °C is demonstrated.
20S proteasome inhibitory activity of flavonoids isolated fromSpatholobus suberectus
Authors: Shim Sang Hee 
Published: November 2010

AbstractThe promising biological role of the ubiquitin proteasome pathway (UPP) in cancer therapy has recently emerged. Inhibition of proteasome has been proposed as a new therapeutic target for treatment of cancer. Bioassay‐guided fractionation of a MeOH extract of the stems ofSpatholobus suberectusresulted in seven compounds, liquiritigenin (1), isoliquiritigenin (2), genistein (3), daidzein (4), medicarpin (5), 7‐hydroxyflavanone (6) and formononetin (7), which were evaluated for the first time for their inhibitory effect on 20S proteasome. Among the isolated compounds, 2, 3 and 6 exhibited inhibitory activities on human 20S proteasome with IC50values of 4.88 ± 1.5, 9.26 ± 1.2 and 5.21 ± 1.5 µm, respectively. Copyright © 2010 John Wiley & Sons, Ltd.
Modulation of the γ‐aminobutyric acid (GABA) system by Passiflora incarnata L.
Authors: Appel Kurt , Rose Thorsten , Fiebich Bernd , Kammler Thomas , Hoffmann Christine , Weiss Gabriele 
Published: November 2010

AbstractPassiflora incarnata L. (Passifloraceae) is important in herbal medicine for treating anxiety or nervousness, Generalized Anxiety Disorder (GAD), symptoms of opiate withdrawal, insomnia, neuralgia, convulsion, spasmodic asthma, ADHD, palpitations, cardiac rhythm abnormalities, hypertension, sexual dysfunction and menopause. However, the mechanism of action is still under discussion. Despite gaps in our understanding of neurophysiological processes, it is increasingly being recognized that dysfunction of the GABA system is implicated in many neuropsychiatric conditions, including anxiety and depressive disorders. Therefore, the in vitro effects of a dry extract of Passiflora incarnata (sole active ingredient in Pascoflair® 425 mg) on the GABA system were investigated. The extract inhibited [3H]‐GABA uptake into rat cortical synaptosomes but had no effect on GABA release and GABA transaminase activity. Passiflora incarnata inhibited concentration dependently the binding of [3H]‐ SR95531 to GABAA‐receptors and of [3H]‐CGP 54626 to GABAB‐receptors. Using the [35S]‐GTPγS binding assay Passiflora could be classified as an antagonist of the GABAB receptor. In contrast, the ethanol‐ and the benzodiazepine‐site of the GABAA‐receptor were not affected by this extract.In conclusion, the first evidence was shown that numerous pharmacological effects of Passiflora incarnata are mediated via modulation of the GABA system including affinity to GABAA and GABAB receptors, and effects on GABA uptake. Copyright © 2010 John Wiley & Sons, Ltd.
Thermodynamic characteristics of air flowing into and out of precipitating convection over the west Pacific warm pool
Authors: Kingsmill David E. , Houze Robert A. 
Published: November 2010

AbstractAircraft data from the Tropical Ocean/Global Atmosphere Coupled Ocean‐Atmosphere Response Experiment (TOGA‐COARE) indicate the validity of current conceptual models used in cumulus parametrization theories. This study makes use of 1 s (˜ 100m) measurements of temperature, dew‐point temperature and pressure taken along the aircraft flight tracks and airborne radar data. The radar data are used to determine the location, depth and horizontal extent of the convection and to categorize the thermodynamic data according to whether the measurements were obtained in precipitation areas or in regions of inflow to convection.Inflow regions had the highest values of equivalent potential temperature (θe), both in the boundary layer and lower free atmosphere, where the convection was deepest and most horizontally extensive, implying a relationship of θe to both the depth and breadth of convection. The observations suggest that the thickness of the layer of high‐θe air may determine the sustainability and, therefore, the horizontal extent of warm‐pool convection. The spectrum of values of θe in the boundary layer of inflow regions was broad, indicating that the field of θe was highly non‐uniform at the 1 s (˜100m) scale sampled by the aircraft.The boundary‐layer air in precipitating regions also exhibited a broad spectrum of θe values, indicating the presence of both outflow from downdraughts and a significant amount of air with characteristics similar to inflow regions. The lowest values in the distribution were about 345 K, suggesting that air parcels transported down into the boundary layer originated from no higher than about 1500 m, or that they underwent substantial mixing.
The relative importance of non‐sea‐salt sulphate and sea‐salt aerosol to the marine cloud condensation nuclei population: An improved multi‐component aerosol‐cloud droplet parametrization
Authors: O'Dowd Colin D. , Lowe Jason A. , Smith Michael H. , Kaye Andrew D. 
Published: November 2010

AbstractThe effect of sub‐cloud aerosol on cloud droplet concentration was explored over the north Atlantic and east Pacific under a variety of low and high wind speed conditions. A relationship of the form ofD= 197{1 ‐ exp(‐6.13 × 103*A)} was found to fit best the relationship between cloud droplet concentration (D; cm‐3) and sub‐cloud aerosol concentration (A; cm‐3) under low to moderate wind conditions. A few noticeable deviations from this relationship were observed which occurred under moderate to high wind speed condition. Under these high wind conditions, sea‐salt aerosol provided the primary source of cloud nuclei due to their higher nucleation activity and larger sizes, even under sulphate‐rich conditions. Simple model simulations reveal that the activation of sea‐salt nuclei suppresses the peak supersaturation reached in cloud, and thus inhibits the activation of smaller sulphate nuclei into cloud droplets. A multi‐component aerosol‐droplet parametrization for use in general circulation models is developed to allow prediction of cloud droplet concentration as a function of sea‐salt and non‐sea‐salt‐(nss) sulphate nuclei. The effects of enhancing an existing nss‐sulphate cloud condensation nuclei (CCN) population with sea‐salt nuclei are to reduce the number of cloud droplets activated under high (polluted) sulphate conditions and to increase the cloud droplet concentration under low (clean) sulphate conditions. The presence of sea‐salt CCN reduces the influence of nss‐sulphate CCN on cloud droplet concentrations, and thus is likely to reduce the predicted effect of nss‐sulphate indirect radiative forcing.
Large‐eddy simulation of the convective boundary layer over an idealized patchy urban surface
Authors: Cai X.‐M. 
Published: November 2010

AbstractThis study investigates the structure of thermal plumes driven by different patchy urban surfaces using large‐eddy simulation. An idealized surface pattern with different sizes of ‘park area’ and ‘built‐up area’ is assumed. These two types of urban surface correspond to ‘colder’ and ‘hotter’ areas over which different surface sensible‐heat fluxes are specified. The stability parameter Zi/L (where Zi is the boundary‐layer depth and L is the Obukhov length‐scale) is large enough that a free‐convection regime is considered. The study has three main aims: (i) to examine the effects of different surface patterns, including its ‘skewness’, on the turbulent structure and growth rate of an urban convective boundary layer (UCBL); (ii) to test the influence of model configuration, such as the domain size and the vertical resolution in the entrainment layer, on the turbulent structure of a UCBL; and (iii) to investigate the behaviour of thermal plumes in the UCBL when a weak wind shear is present. The results show that: (i) the surface pattern plays an important role in determining the power spectrum of the vertical‐velocity fluctuations—the positive skewness of the surface heat‐flux pattern enhances both the lifetime of the surface‐driven modes and the skewness of the vertical‐velocity fluctuations, and patchy surface patterns cause higher boundary‐layer growth rates for a time t within the range 4t* < t < 16t* (where t* = Zi/w* and w* is the convective velocity‐scale), but contribute little at later times; (ii) the domain size must be large enough (larger than 5Zi) in order to resolve correctly the surface‐driven mode, and the vertical grid resolution in the entrainment layer has a small effect on the UCBL growth and on the turbulent statistics in the UCBL; and (iii) the wind is shown to have smoothing effects on the power spectrum, similar to the findings of Dörnbrack and Schumann in their study of a convective boundary layer over a one‐dimensional wavy terrain—for small values of the ratio d/Zi (where d is the length‐scale of the surface pattern) this effect is very significant, but for large values the effect is reduced.
Cascade interpolation for semi‐Lagrangian advection over the sphere
Authors: Nair Ramachandran , Côté Jean , Staniforth Andrew 
Published: November 2010

AbstractA cascade interpolator, previously proposed by the authors for semi‐Lagrangian advection in Cartesian geometry, is extended to spherical geometry. It is evaluated using two test problems—solid‐body rotation and strong deformational flow—and found to be both accurate and efficient. The second problem is particularly challenging. It is a generalization to spherical geometry of Doswell's idealized cyclogenesis problem with an exact solution.
Robust parameter design using a supersaturated design for a response surface model
Authors: Matsuura, Shun , Suzuki, Hideo , Iida, Takahisa , Kure Hirotaka , Mori Hatsuo 
Published: November 2010

AbstractRecently, the application of response surface methodology (RSM) to robust parameter design has attracted a great deal of attention. In some cases, experiments are very expensive and may require a great deal of time to perform. Central composite designs (CCDs) and Box and Behnken designs (BBDs), which are commonly used for RSM, may lead to an unacceptably large number of experimental runs. In this paper, a supersaturated design for RSM is constructed and its application to robust parameter design is proposed. A response surface model is fitted using data from the designed experiment and a stepwise variable selection. An illustrative example is presented to show that the proposed method considerably reduces the number of experimental runs, as compared with CCDs and BBDs. Numerical experiments are also conducted in which type I and II error rates are evaluated. The results imply that the proposed method may be effective for finding the effects (i.e. main effects, two‐factor interactions, and pure quadratic effects) of active factors under the ‘effect sparsity’ assumption. Copyright © 2010 John Wiley & Sons, Ltd.
A new damage index for RC buildings based on variations of nonlinear fundamental period
Authors: Massumi Ali , Moshtagh Ehsan 
Published: November 2010

SUMMARYMany vital reinforced concrete (RC) buildings experience moderate or severe earthquakes in their lifetime because they are located in hazardous areas. However, their importance cause to be evaluated by different types of damage functions. In these procedures, structures are usually modelled. These models neither correctly display the effects of the cracks that emerge and plastic hinges nor precisely consider the effects of asymmetric configuration and infill panels. Furthermore, the actual nonlinear dynamic behaviour of existing buildings could be evaluated by assessing nonlinear dynamic characteristics such as the fundamental period. These dynamic characteristics, which are obtained by some field tests such as forced and/or ambient vibration methods, comprise the aforementioned effects. This paper offers a damage index (pattern) for seismic damage assessment of RC buildings based on the variation of the nonlinear fundamental period, which is obtained by field tests. Finally, the seismic situation of existing RC buildings that have experienced an earthquake is precisely and expeditiously assessed by this new damage index. Copyright © 2010 John Wiley & Sons, Ltd.
Four Dysprosium(III) Compounds Based On 1H‐Benzimidazole‐5,6‐dicarboxylic Acid via Hydrothermal Synthesis
Authors: Sun Ya‐Guang , Xiong Gang , Guo Mei‐Yan , Ding Fu , Wang Lei , Gao En‐Jun , Zhu Ming‐Chang , Verpoort Francis 
Published: November 2010

AbstractFour compounds [Dy(H2bidc)(Hbidc)(H2O)8]·8H2O (1), {[Dy(Hbidc)(H2O)2(Htzac)]·3H2O}n (2), [Dy(C2O4)0.5(Hbidc)(H2O)3]n (3), {[Dy2(Hbidc)2(H2O)(SO4)]·H2O}n (4) (H3bidc = 1H‐benzimidazole‐5,6‐dicarboxylic acid, H2tzac = 1H‐3‐amino‐5‐carboxy‐1,2,4‐triazole) were synthesized with hydrothermal synthesis and structurally characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction. X‐ray analysis revealed that the four coordination compounds have different structures: Compound 1 is a three dimensional supermolecular structure joined by hydrogen bonding interactions based upon dinuclear units. Compound 2 is a three dimensional supermolecular structure combined by hydrogen‐bonding interactions based upon one dimensional coordination chain including a T4(1)‐type water cluster chain. The structure of compound 3 is built of two dimensional (3,6)‐connected kgd‐type (43)2(46.66.83) layers with a right‐handed and a left‐handed helical chain, which are further extended into three dimensional supramolecular architecture by hydrogen bonding interactions. Compound 4 displays a three dimensional framework containing a dinuclear dysprosium building unit with a (3,8)‐connected (4.52)2(42.510.612.7.83) topological framework. In addition, the photoluminescent property of compound 3 was investigated.