bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recrystalization Behavior of Coldworked 14Cr-15Ni-2Mo Austenitic Stainless Steel Under Tensile Deformation
Authors: Nandagopal M. , Parameswaran P. , Vijayanand V.D. , Panneerselvi S. , Laha K. , Mathew M.D. 
Published: August 2013

AbstractRecrystallization behavior of 20% coldworked alloy D9 (14Cr-15Ni-2Mo austenitic stainless steel) during high temperature tensile deformation has been assessed. The alloy was produced by vacuum induction melting followed either by vacuum arc refining (VAR) or electroslag refining (ESR). Tensile studies were carried out at various temperatures between ambient and 1073 K at an interval of 50 K and at strain rate of 1.2 × 10−3 s−1. The peak in the stress-strain curve was observed for the tensile tests conducted at 973–1073 K. This is attributed to dynamic recrystallization during tensile deformation. The values of the apparent activation energy were estimated as 384 kJ/mol for ESR grade alloy D9 and 372 kJ/mol for VAR grade alloy D9 by hyperbolic-sine Arrhenius equation, which agree well with that required for dynamic recrystallization in stainless steels. TEM studies confirmed extensive recovery and dynamic recrystalization in both the alloys.
Iatrogenic venous thrombosis secondary to supplemental medicine toxicity
Authors: Newey Christopher Ryan , Sarwal Aarti , Tepper Deborah 
Published: August 2013

Abstract

Objective: We described a case of cerebral venous sinus thrombosis in a patient taking multiple supplements as part of a naturopathic anti-aging regimen.

Methods: Case report.

Results: The patient presented with a thalamic infarct associated with a thrombus in the vein of Galen. He reported no previous history of endocrinopathy and no known hypercoagulability risk factors. He was treated with therapeutic anticoagulation resulting in improvement. Diagnostic workup revealed hyperthyroidism and gonadotrophic deficiency attributed to significant supplement medicine usage.

Conclusion: This case highlights a potential risk of dietary supplements. Use of these supplements may be a risk factor for idiopathic cerebral venous thrombosis.
Cost-effective WDM-PON Delivering Up/Down-stream Data on a Single Wavelength Using Soliton Pulse
Authors: Tawade Laxman 
Published: August 2013

Abstract
This paper presents wavelength division multiplexing passive optical network (WDM-PON) system delivering downstream 2.5 Gbit/s data and upstream 1 Gbit/s data on a single wavelength using pulse source is mode locked laser which generating a single pulse of “sech” shape with specified power and width i.e. soliton pulse. The optical source for downstream data and upstream data is sech pulse generator at central office and reflective semiconductor optical amplifier (RSOA) at each optical network unit. We also investigate analysis of backscattered optical signal for upstream data and downstream data simultaneously. Bit error rate, Q-Factor were measured to demonstrate the proposed scheme. In this paper Long reach aspects of an access network is investigated using single channel scenario.
Designing PMF with Negative Tap Coefficient Based on FBG Delay Line
Authors: Hou Fenfei , Yang Ming 
Published: August 2013

Abstract
DIRECT global optimization algorithm is innovatively used in design of PMF. Tap coefficient is attained by achieving DIRECT algorithm with C language and Matlab language is employed to simulate the amplitude response of filters. We have designed PMF (photonic microwave filter) with negative tap coefficient and then optimize the design. The minimum shape factor is as low as 1.3180. The results show that the algorithm is highly efficient in designing filter and can produce necessary passband and stopband response characteristics.
Dual-wavelength DFB Fiber Laser based Equivalent Phase Shift
Authors: Hou Fenfei , Yang Ming 
Published: August 2013

Abstract
A new structured dual-wavelength distributed feedback fiber laser is proposed. In this new structure, phase shift is introduced as well as equivalent phase shift. Theoretical analysis and simulation demonstrates this new structure is able to provide separate resonant cavities to overcome mode competition. Different channels of sampled fiber Bragg gratings are utilized simultaneously, so wide wavelength spacing could be achieved. A 31 GHz spaced dual-wavelength DFB fiber laser is achieved on an Er-doped fiber with excimer laser and homogeneous phase plate. Experiments shows that dual-wavelength lasing is achieved and laser power is in reverse proportion with coupling coefficient of the FBG.
Performance Analysis of a New Coded TH-CDMA Scheme in Dispersive Infrared Channel with Additive Gaussian Noise
Authors: Hamdi Mazda , Kenari Masoumeh Nasiri 
Published: August 2013

Abstract
We consider a time-hopping based multiple access scheme introduced in [1] for communication over dispersive infrared links, and evaluate its performance for correlator and matched filter receivers. In the investigated time-hopping code division multiple access (TH-CDMA) method, the transmitter benefits a low rate convolutional encoder. In this method, the bit interval is divided into N

c
chips and the output of the encoder along with a PN sequence assigned to the user determines the position of the chip in which the optical pulse is transmitted. We evaluate the multiple access performance of the system for correlation receiver considering background noise which is modeled as White Gaussian noise due to its large intensity. For the correlation receiver, the results show that for a fixed processing gain, at high transmit power, where the multiple access interference has the dominant effect, the performance improves by the coding gain. But at low transmit power, in which the increase of coding gain leads to the decrease of the chip time, and consequently, to more corruption due to the channel dispersion, there exists an optimum value for the coding gain. However, for the matched filter, the performance always improves by the coding gain. The results show that the matched filter receiver outperforms the correlation receiver in the considered cases. Our results show that, for the same bandwidth and bit rate, the proposed system excels other multiple access techniques, like conventional CDMA and time hopping scheme.
Genetic alterations in thyroid tumors from patients irradiated in childhood for tinea capitis treatment
Authors: Boaventura Paula , Pereira Dina , Celestino Ricardo , Mendes Adélia , Nakasawa Tadao , Teixeira-Gomes José , Sobrinho-Simões Manuel , Soares Paula 
Published: August 2013

ObjectiveExposure to ionizing radiation at young age is the strongest risk factor for the occurrence of papillary thyroid carcinoma (PTC).RET/PTCrearrangements are the most frequent genetic alterations associated with radiation-induced PTC, whereasBRAFandRASmutations andPAX8–PPARGrearrangement have been associated with sporadic PTC. We decided to search for such genetic alterations in PTCs of patients subjected in childhood to scalp irradiation.DesignWe studied 67 thyroid tumors from 49 individuals irradiated in childhood for tinea capitis scalp epilation: 36 malignant (12 cases of conventional PTC (cPTC), two cPTC metastases, 20 cases of follicular variant PTC (FVPTC), one oncocytic variant of PTC and one follicular carcinoma) and 31 follicular thyroid adenomas.MethodsThe lesions were screened for theBRAFV600EandNRASmutations and forRET/PTCandPAX8–PPARGrearrangements.ResultsBRAFV600Emutation was detected in seven of 14 (50%) cPTC and two of 20 FVPTC (10%) (P=0.019).NRASmutation was present in one case of FVPTC (5%).RET/PTC1rearrangement was found, by RT-PCR, in one of 17 cases (5.9%) and by fluorescencein situhybridization in two of six cases (33%).PAX8–PPARGrearrangement was not detected in any carcinoma. None of the follicular adenomas presented any of the aforementioned genetic alterations.ConclusionsThe prevalence ofBRAFV600Emutation in our series is the highest reported in series of PTCs arising in radiation-exposed individuals. The prevalence ofRET/PTC1rearrangement fits with the values recently described in a similar setting.
The Systemic Inflammatory Response and Its Relationship to Pain and Other Symptoms in Advanced Cancer
Authors: Laird Barry J. , McMillan Donald C. , Fayers Peter , Fearon Kenneth , Kaasa Stein , Fallon Marie T. , Klepstad Pål 
Published: August 2013

AbstractIntroduction.Inflammation has been identified as a hallmark of cancer and may be necessary for tumorgenesis and maintenance of the cancer state. Inflammation-related symptoms are common in those with cancer; however, little is known about the relationship between symptoms and systemic inflammation in cancer. The aim of the present study was to examine the relationship between symptoms and systemic inflammation in a large cohort of patients with advanced cancer.Methods.Data from an international cohort of patients with advanced cancer were analyzed. Symptoms and patient-related outcomes were recorded using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire—Core Questionnaire. Systemic inflammation was assessed using C-reactive protein levels. The relationship between these symptoms and systemic inflammation was examined using Spearman rank correlation (ρ) and the Mann-Whitney U test.Results.Data were available for 1,466 patients across eight European countries; 1,215 patients (83%) had metastatic disease at study entry. The median survival was 3.8 months (interquartile range [IQR] 1.3–12.2 months). The following were associated with increased levels of inflammation: performance status (ρ = .179), survival (ρ = .347), pain (ρ = .154), anorexia (ρ = .206), cognitive dysfunction (ρ = .137), dyspnea (p= .150), fatigue (ρ = .197), physical dysfunction (ρ = .207), role dysfunction (ρ = .176), social dysfunction (ρ = .132), and poor quality of life (ρ = .178). All were statistically significant at p &lt; .001.Conclusion.The results show that the majority of cancer symptoms are associated with inflammation. The strength of the potential relationship between systemic inflammation and common cancer symptoms should be examined further within the context of an anti-inflammatory intervention trial.
Constructing isothermal curvature line coordinates on surfaces which admit them
Authors: Aulisa Eugenio , Toda Magdalena , Kose Zeynep 
Published: August 2013

Abstract
Isothermic parameterizations are synonyms of isothermal curvature line parameterizations, for surfaces immersed in Euclidean spaces. We provide a method of constructing isothermic coordinate charts on surfaces which admit them, starting from an arbitrary chart. One of the primary applications of this work consists of numerical algorithms for surface visualization.
Quotients of an affine variety by an action of a torus
Authors: Chuvashova Olga , Pechenkin Nikolay 
Published: August 2013

Abstract
Let X be an affine T-variety. We study two different quotients for the action of T on X: the toric Chow quotient X/C
T and the toric Hilbert scheme H. We introduce a notion of the main component H
0 of H, which parameterizes general T-orbit closures in X and their flat limits. The main component U
0 of the universal family U over H is a preimage of H
0. We define an analogue of a universal family WX over the main component of X/C
T. We show that the toric Chow morphism restricted on the main components lifts to a birational projective morphism from U
0 to W
X. The variety W
X also provides a geometric realization of the Altmann-Hausen family. In particular, the notion of W
X allows us to provide an explicit description of the fan of the Altmann-Hausen family in the toric case.
On weak-strong uniqueness property for full compressible magnetohydrodynamics flows
Authors: Yan Weiping 
Published: August 2013

Abstract
This paper is devoted to the study of the weak-strong uniqueness property for full compressible magnetohydrodynamics flows. The governing equations for magnetohydrodynamic flows are expressed by the full Navier-Stokes system for compressible fluids enhanced by forces due to the presence of the magnetic field as well as the gravity and an additional equation which describes the evolution of the magnetic field. Using the relative entropy inequality, we prove that a weak solution coincides with the strong solution, emanating from the same initial data, as long as the latter exists.
Algorithms for permutability in finite groups
Authors: Ballester-Bolinches Adolfo , Cosme-Llópez Enric , Esteban-Romero Ramón 
Published: August 2013

Abstract
In this paper we describe some algorithms to identify permutable and Sylow-permutable subgroups of finite groups, Dedekind and Iwasawa finite groups, and finite T-groups (groups in which normality is transitive), PT-groups (groups in which permutability is transitive), and PST-groups (groups in which Sylow permutability is transitive). These algorithms have been implemented in a package for the computer algebra system GAP.
Rings of constants of four-variable Lotka-Volterra systems
Authors: Zieliński Janusz 
Published: August 2013

Abstract
Lotka-Volterra systems appear in population biology, plasma physics, laser physics and derivation theory, among many others. We determine the rings of constants of four-variable Lotka-Volterra derivations with four parameters C
1, C
2, C
3, C
4 ∈ k, where k is a field of characteristic zero. Thus, we give a full description of polynomial first integrals of the respective systems of differential equations.
Quantum B-algebras
Authors: Rump Wolfgang 
Published: August 2013

Abstract
The concept of quantale was created in 1984 to develop a framework for non-commutative spaces and quantum mechanics with a view toward non-commutative logic. The logic of quantales and its algebraic semantics manifests itself in a class of partially ordered algebras with a pair of implicational operations recently introduced as quantum B-algebras. Implicational algebras like pseudo-effect algebras, generalized BL- or MV-algebras, partially ordered groups, pseudo-BCK algebras, residuated posets, cone algebras, etc., are quantum B-algebras, and every quantum B-algebra can be recovered from its spectrum which is a quantale. By a two-fold application of the functor “spectrum”, it is shown that quantum B-algebras have a completion which is again a quantale. Every quantale Q is a quantum B-algebra, and its spectrum is a bigger quantale which repairs the deficiency of the inverse residuals of Q. The connected components of a quantum B-algebra are shown to be a group, a fact that applies to normal quantum B-algebras arising in algebraic number theory, as well as to pseudo-BCI algebras and quantum BL-algebras. The logic of quantum B-algebras is shown to be complete.
On mild solutions of gradient systems in Hilbert spaces
Authors: Rozkosz Andrzej 
Published: August 2013

Abstract
We consider the Cauchy problem for an infinite-dimensional Ornstein-Uhlenbeck equation perturbed by gradient of a potential. We prove some results on existence and uniqueness of mild solutions of the problem. We also provide stochastic representation of mild solutions in terms of linear backward stochastic differential equations determined by the Ornstein-Uhlenbeck operator and the potential.
Coherence classes of ideals of normal lattices with applications to C(X)
Authors: Dube Themba 
Published: August 2013

Abstract
Given a topological space X, Jenkins and McKnight have shown how ideals of the ring C(X) are partitioned into equivalence classes — called coherence classes — defined by declaring ideals to be equivalent if their pure parts are identical. In this paper we consider a similar partitioning of the lattice of ideals of a normal bounded distributive lattice. We then apply results obtained herein to augment some of those of Jenkins and McKnight. In particular, for Tychonoff spaces, new results include the following:
(a)all members of any coherence class have the same annihilator(b)every ideal is alone in its coherence class if and only if the space is a P-space.
Extent partitions and context extensions
Authors: Ganter Bernhard , Körei Attila , Radeleczki Sándor 
Published: August 2013

Abstract
We prove that the extent partitions of a formal context $$\mathbb{K}: = (G,M,I)$$ can be constructed from the box extents of it, which form a complete atomistic lattice. $$\mathbb{K}$$ is called a one-object extension of the subcontext (H, M, J) if it is obtained by adding a new element with attributes in M to the set H. We investigate the interplay between the box extents of (H, M, J) and those of its one-object extension $$\mathbb{K}$$, and describe those extent partitions of (H, M, J) which can be extended to $$\mathbb{K}$$.
Extremal solutions of Cauchy problems for abstract fractional differential equations
Authors: Wang JinRong , Zhou Yong , Medveď Milan 
Published: August 2013

Abstract
In this paper, we study the extremal solutions of Cauchy problems for abstract fractional differential equations. Some definitions such as L
1-Lipschitz-like, L
1-Carathéodory-like and L
1-Chandrabhan-like are introduced. By virtue of the singular integral inequalities with several nonlinearities due to Medved’, the properties of solutions are given. By using a hybrid fixed point theorem due to Dhage, existence results for extremal solutions are established. Finally, we present an example to illustrate our main results.
Existence of periodic solutions for sublinear second order dynamical system with (q, p)-Laplacian
Authors: Yang Xiaoxia , Chen Haibo 
Published: August 2013

Abstract
In this paper, some existence theorems are obtained for periodic solutions of second order dynamical system with (q, p)-Laplaician by using the least action principle and the saddle point theorem. Our results improve Pasca and Tang’ results.
Spaces of lower semicontinuous set-valued maps
Authors: Holá Ľubica , Holý Dušan 
Published: August 2013

Abstract
We give a negative answer to Problem 2 posed by R. A. McCoy in his paper [McCoy R. A.: Spaces of lower semicontinuous set-valued maps II, Math. Slovaca 60 (2010), 541–570]. Some topological properties of the space L
−(X) introduced in [McCOY R. A.: Spaces of lower semicontinuous set-valued maps I, Math. Slovaca 60 (2010), 521–540] equipped with the Vietoris topology are also investigated.
Fixed point results for mappings satisfying (ψ
φ)-weakly contractive condition in ordered partial metric spaces
Authors: Nashine Hemant 
Published: August 2013

Abstract
In [18], Matthews introduced a new class of metric spaces, that is, the concept of partial metric spaces, or equivalently, weightable quasi-metrics, are investigated to generalize metric spaces (X, d), to develop and to introduce a new fixed point theory. In partial metric spaces, the self-distance for any point need not be equal to zero. In this paper, we study some results for single map satisfying (ψ,φ)-weakly contractive condition in partial metric spaces endowed with partial order. An example is given to support the useability of our results.
Vector fields on certain quotients of complex Stiefel manifolds
Authors: Gondhali Shilpa , Sankaran Parameswaran 
Published: August 2013

Abstract
We consider quotients of complex Stiefel manifolds by finite cyclic groups whose action is induced by the scalar multiplication on the corresponding complex vector space. We obtain a description of their tangent bundles, compute their mod p cohomology and obtain estimates for their span (with respect to their standard differentiable structure). We compute the Pontrjagin and Stiefel-Whitney classes of these manifolds and give applications to their stable parallelizability.
Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers
Authors: Arendt Anthony , Luthcke Scott , Gardner Alex , O’Neel Shad , Hill David , Moholdt Geir , Abdalati Waleed 
Published: August 2013

AbstractWe present a high-resolution Gravity Recovery and Climate Experiment (GRACE) mascon solution for Gulf of Alaska (GOA) glaciers and compare this with in situ glaciological, climate and other remote-sensing observations. Our GRACE solution yields a GOA glacier mass balance of −65 ± 11 Gt a−1 for the period December 2003 to December 2010, with summer balances driving the interannual variability. Between October/November 2003 and October 2009 we obtain a mass balance of −61 ± 11 Gt a−1 from GRACE, which compares well with −65 ± 12 Gt a−1 from ICESat based on hypsometric extrapolation of glacier elevation changes. We find that mean summer (June–August) air temperatures derived from both ground and lower-troposphere temperature records were good predictors of GRACE-derived summer mass balances, capturing 59% and 72% of the summer balance variability respectively. Large mass losses during 2009 were likely due to low early melt season surface albedos, measured by the Moderate Resolution Imaging Spectroradiometer (MODIS) and likely associated with the 31 March 2009 eruption of Mount Redoubt, southwestern Alaska. GRACE data compared well with in situ measurements at Wolverine Glacier (maritime Alaska), but poorly with those at Gulkana Glacier (interior Alaska). We conclude that, although GOA mass estimates from GRACE are robust over the entire domain, further constraints on subregional and seasonal estimates are necessary to improve fidelity to ground observations.
Weak bed control of the eastern shear margin of Thwaites Glacier, West Antarctica
Authors: MacGregor Joseph A. , Catania Ginny A. , Conway Howard , Schroeder Dustin M. , Joughin Ian , Young Duncan A. , Kempf Scott D. , Blankenship Donald D. 
Published: August 2013

AbstractRecent acceleration and thinning of Thwaites Glacier, West Antarctica, motivates investigation of the controls upon, and stability of, its present ice-flow pattern. Its eastern shear margin separates Thwaites Glacier from slower-flowing ice and the southern tributaries of Pine Island Glacier. Troughs in Thwaites Glacier’s bed topography bound nearly all of its tributaries, except along this eastern shear margin, which has no clear relationship with regional bed topography along most of its length. Here we use airborne ice-penetrating radar data from the Airborne Geophysical Survey of the Amundsen Sea Embayment, Antarctica (AGASEA) to investigate the nature of the bed across this margin. Radar data reveal slightly higher and rougher bed topography on the slower-flowing side of the margin, along with lower bed reflectivity. However, the change in bed reflectivity across the margin is partially explained by a change in bed roughness. From these observations, we infer that the position of the eastern shear margin is not strongly controlled by local bed topography or other bed properties. Given the potential for future increases in ice flux farther downstream, the eastern shear margin may be vulnerable to migration. However, there is no evidence that this margin is migrating presently, despite ongoing changes farther downstream.
Guerre froide, paix chaude et systèmes de raisonnement sur la jeunesse
Authors: Lesko Nancy 
Published: August 2013

L’article examine les systèmes de raisonnement sur la jeunesse, en théorie et dans les pratiques éducatives, aux États-Unis pendant la guerre froide des années 1950 et 1960 et la “paix chaude” de 1990 à nos jours. La période de la guerre froide s’est concentrée sur l’éducation d’adolescents indépendants qui ne devaient pas succomber à la conformité du fascisme ou du socialisme. Une théorie de l’identité a permis de cimenter la jeunesse rebelle comme une vérité et de créer des sujets psychopolitiques souverains qui atteindraient la maturité par l’intermédiaire de pratiques éducatives démocratisantes. Pendant la paix chaude, le cerveau des adolescents et les neurosciences ont défié la théorie de l’adolescent rebelle et de l’identité. Le déséquilibre biologique à l’adolescence, entre l’éveil socio-émotionnel et la capacité de contrôle cognitif, est posé comme postulat, accompagné de préoccupations par rapport à la prise et à la gestion des risques. Les chercheurs en neurosciences recommandent de retarder l’âge du vote, de la conduite automobile et d’autres responsabilités, et les programmes scolaires se concentrent sur les performances réalisées lors de tests normalisés. Ces développements suggèrent les rationalités d’un imaginaire actuariel impliquant la révision des pratiques éducatives.