cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IPHC Emittance-meters: Design and Development
Creators: name: Bouquerel, Elian
name: Maazouzi, Chaker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Institut Pluridisciplinaire Hubert Curien (IPHC) of Strasbourg, which celebrates its 15th year in 2021, is composed of four departments. Each of these departments comes from a different scientific horizon such as eco-physiology, chemistry, subatomic research and medical imaging. IPHC was created with the ambition of having different competences to develop high-level multidisciplinary programs with the basis of scientific instrumentation. Beam diagnostics is one of the main fields that has been intensively investigated during all these years within the team of the Instrumentation of Accelerators. This paper focuses on one of its major achievements, the Allison emittance-meter, developed in the framework of SPIRAL2, MYRRHA and FAIR projects.
description: 13 pages, 7 figures, accepted for publication in JINST (Ref. JINST_015T_0920)
Using radio frequency to control Liposcelis entomophila in Jasmine rice
Creators: name: Kritthapot Nantakool, Nadthawat Muenmanee
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: psocids, book lice
Liposcelis entomophila
radio frequency
milled rice

description: Khon Kaen Agriculture Journal, 49, 1, 119-129
Trigonometric parallaxes of high velocity halo white dwarf candidates
Creators: name: Ducourant, C.
name: Teixeira, R.
name: Hambly, N. C.
name: Oppenheimer, B. R.
name: Hawkins, M. R. S.
name: Rapaport, M.
name: Modolo, J.
name: Lecampion, J. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The status of 38 halo white dwarf candidates identified by Oppenheimer et al. (2001) has been intensively discussed by various authors. In analyses undertaken to date, trigonometric parallaxes are crucial missing data. Distance measurements are mandatory to kinematically segregate halo object from disk objects and hence enable a more reliable estimate of the local density of halo dark matter residing in such objects. We present trigonometric parallax measurements for 15 candidate halo white dwarfs (WDs) selected from the Oppenheimer et al. (2001) list. We observed the stars using the ESO 1.56-m Danish Telescope and ESO 2.2-m telescope from August 2001 to July 2004. Parallaxes with accuracies of 1--2 mas were determined yielding relative errors on distances of $\sim5$% for 6 objects, $\sim12$% for 3 objects, and $\sim20$% for two more objects. Four stars appear to be too distant (probably farther than 100 pc) to have measurable parallaxes in our observations. Distances, absolute magnitudes and revised space velocities were derived for the 15 halo WDs from the Oppenheimer et al. (2001) list. Halo membership is confirmed unambiguously for 6 objects while 5 objects may be thick disk members and 4 objects are too distant to draw any conclusion based solely on kinematics. Comparing our trigonometric parallaxes with photometric parallaxes used in previous work reveals an overestimation of distance as derived from photometric techniques. This new data set can be used to revise the halo white dwarf space density, and that analysis will be presented in a subsequent publication.
Gaussian potentials facilitate access to quantum Hall states in rotating Bose gases
Creators: name: Morris, Alexis G.
name: Feder, David L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Through exact numerical diagonalization for small numbers of atoms, we show that it is possible to access quantum Hall states in harmonically confined Bose gases at rotation frequencies well below the centrifugal limit by applying a repulsive Gaussian potential at the trap center. The main idea is to reduce or eliminate the effective trapping frequency in regions where the particle density is appreciable. The critical rotation frequency required to obtain the bosonic Laughlin state can be fixed at an experimentally accessible value by choosing an applied Gaussian whose amplitude increases linearly with the number of atoms while its width increases as the square root.
description: 4 pages, 4 figures
AMR simulations of the low T/|W| bar-mode instability of neutron stars
Creators: name: Cerdá-Durán, Pablo
name: Quilis, Vicent
name: Font, José A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been recently argued through numerical work that rotating stars with a high degree of differential rotation are dynamically unstable against bar-mode deformation, even for values of the ratio of rotational kinetic energy to gravitational potential energy as low as O(0.01). This may have implications for gravitational wave astronomy in high-frequency sources such as core collapse supernovae. In this paper we present high-resolution simulations, performed with an adaptive mesh refinement hydrodynamics code, of such low T/|W| bar-mode instability. The complex morphological features involved in the nonlinear dynamics of the instability are revealed in our simulations, which show that the excitation of Kelvin-Helmholtz-like fluid modes outside the corotation radius of the star leads to the saturation of the bar-mode deformation. While the overall trends reported in an earlier investigation are confirmed by our work, we also find that numerical resolution plays an important role during the long-term, nonlinear behaviour of the instability, which has implications on the dynamics of rotating stars and on the attainable amplitudes of the associated gravitational wave signals.
description: 20 pages, 9 figures, accepted for publication in Computer Physics Communications.
“Hard Travelin”: Die Old Left und Folk Music im New Deal
Creators: name: Brändle, Fabian
Publisher: name: Moving the Social
Year: 2015

description: Social movements often create new music. The old left of the United States defined itself by referring to the grass roots of American culture. Music collectors and scientists found inspiration in the songs of the working class, outsiders, cowboys and hobos. New technologies, like the gramophone and radio, and were helpful in creating collections of popular songs and in producing the first superstars of folk music. During the New Deal in the 1930s the US Democrats opened themselves more to the left and created new creative jobs and synergies for musical activists. With the rise of new popular styles, like the more apolitical country- and western-music, and the anti-communism during the McCarthy-era, folk music became unpopular before it experienced a revival in the 1960s. Its roots, however, lie in the atmosphere of the 1930s during the New Deal.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
Analytic approach to dynamics of the resonant and off-resonant Jaynes-Cummings systems with cavity losses
Creators: name: Ozaki, Soshun
name: Nakazato, Hiromichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new analytic approach to investigate the zero-temperature time evolution of the Jaynes-Cummings system with cavity losses is developed. With the realistic coupling between the cavity and the environment assumed, a simple master equation is derived, leading to the explicit analytic solution for the resonant case. This solution is suitable for the analyses not only on the single excitation states but also on many excitation states, which enables us to investigate the photon coherent state and to observe sharp collapses and revivals under dissipation. For the off-resonant case, on the other hand, the present study presents an analytic, systematic method instead. We examine the small and large detuning limits and discuss the condition where the widely-used phenomenological treatment is justified. Explicit evaluations of the time evolutions for various initial states with finite detuning are also presented.
«Let savage Beasts lodge in a Country Den»
Creators: name: Romero Alluè, Milena
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

Moving from his peculiar way of mingling poetry and natural philosophy, his composing lyrics with the condensation of good prose and his writing essays in a poetical language, these pages investigate the ambiguous attitude towards the natural world and, in particular, towards the animal dimension that marks Abraham Cowley’s writings. Close to Andrew Marvell, Richard Lovelace, John Evelyn and Samuel Pepys, for instance, Cowley seems to be torn between Descartes’s mechanistic approach and Gassendi’s ‘animistic’ theories, Republican ideals and monarchic values, classic culture and modern science: the poet celebrates and worships the natural world in its wholeness, identifies humanity (and wit) with animals and plants, obliquely associates a mouse with Charles II and, by displaying a paradoxical treatment of animals that do not belong to the poetical tradition, sheds light on the ‘split’ spirit of his age.

description: English Literature
Of Lords and Stars
Creators: name: Grimaldi-Pizzorno, Patrizia
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

The essay argues that glittering tribute to Essex in the Prothalamion is ambivalent and paradoxical. The author focuses on the Ovidian and Virgilian intertexts of the praise and brings to light Spenser’s hidden references to Lucifer and Phaethon, mythical emblems of pride. For the generic and stylistic inconsistencies, explicit notes of personal and political concern, and the moral seriousness that run through the poem, the Prothalamion is not a mere nuptial song and does not
mark Spenser’s return to courtly poetry. On the contrary, under its epithalamic façade the poem hides a reflection and meditation on the vainglory of this world. Spenser’s last poem, like Four Hymns, is a poem of exit that marks the crisis of the Tudor poetics of praise and patronage, as well as Spenser’s own project of paidea.

description: English Literature
title: (AB)n Segmented Copolyetherimides for 4D Printing
Creators: name: Jin, Minde
name: Stihl, Markus
name: Giesa, Reiner
name: Neuber, Christian
name: Schmidt, Hans-Werner
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: 3D printing
subject: 4D printing
subject: (AB)n segmented copolymers
subject: Extrusion-based additive manufacturing
subject: Shape memory
subject: 500
subject: 540

description: Abstract The fourth dimension in 4D printing comprises the ability of materials to recover their shape with time by utilizing 3D printing in combination with shape memory polymers. The focus of this work is on 3D printing of physically crosslinked thermoplastic polymers, which allow a reversible transformation from a temporary to an original shape by an external stimulus temperature, thus realize 4D printing. In this context, (AB)n segmented copolyetherimides consisting of perylene and poly(ethylene glycol) (PEG) segments are synthesized and characterized regarding their thermal and rheological properties in view of 3D printing. The perylene imide segments act as reversible physical crosslinks which disassemble between 100 and 200 °C. The PEG segments exhibit a low melting temperature around 40 to 60 °C and are semi-crystalline at room temperature. The results show that this type of (AB)n segmented copolyetherimide combines reliable 3D printing performance, which is indicated by low warp deformation and excellent interlayer bonding. With a blend of two copolymers, it is able to realize 4D printing.
สารประกอบออกไซด์เจือแม่เหล็ก
Creators: name: ขวัญฤทัย วงศาพรม
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: สารประกอบออกไซต์เจือแม่เหล็ก, แม่เหล็กเฟอร์โร, ความเป็นแม่เหล็ก

description: 3, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
High charge-carrier mobility and low trap density in a rubrene derivative
Creators: name: Haas, S.
name: Stassen, A. F.
name: Schuck, G.
name: Pernstich, K. P.
name: Gundlach, D. J.
name: Batlogg, B.
name: Berens, U.
name: Kirner, H. -J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have synthesized, crystallized and studied the structural and electric transport properties of organic molecular crystals based on a rubrene derivative with {\em t}-butyl sidegroups at the 5,11 positions. Two crystalline modifications are observed: one (A) distinct from that of rubrene with larger spacings between the naphtacene backbones, the other (B) with a in-plane structure presumably very similar compared to rubrene. The electric transport properties reflect the different structures: in the latter phase (B) the in-plane hole mobility of 12 cm$^2$/Vs measured on single crystal FETs is just as high as in rubrene crystals, while in the A phase no field-effect could be measured. The high crystal quality, studied in detail for B, reflects itself in the density of gap states: The deep-level trap density as low as $10^{15}$ cm$^{-3}$ eV$^{-1}$ has been measured, and an exponential band tail with a characteristic energy of 22 meV is observed. The bulk mobility perpendicular to the molecular planes is estimated to be of order of $10^{-3}$ -- $10^{-1}$ cm$^2$/Vs.
Evolutionary games on minimally structured populations
Creators: name: Szollosi, Gergely J
name: Derenyi, Imre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: Population structure induced by both spatial embedding and more general networks of interaction, such as model social networks, have been shown to have a fundamental effect on the dynamics and outcome of evolutionary games. These effects have, however, proved to be sensitive to the details of the underlying topology and dynamics. Here we introduce a minimal population structure that is described by two distinct hierarchical levels of interaction. We believe this model is able to identify effects of spatial structure that do not depend on the details of the topology. We derive the dynamics governing the evolution of a system starting from fundamental individual level stochastic processes through two successive meanfield approximations. In our model of population structure the topology of interactions is described by only two parameters: the effective population size at the local scale and the relative strength of local dynamics to global mixing. We demonstrate, for example, the existence of a continuous transition leading to the dominance of cooperation in populations with hierarchical levels of unstructured mixing as the benefit to cost ratio becomes smaller then the local population size. Applying our model of spatial structure to the repeated prisoner's dilemma we uncover a novel and counterintuitive mechanism by which the constant influx of defectors sustains cooperation. Further exploring the phase space of the repeated prisoner's dilemma and also of the "rock-paper-scissor" game we find indications of rich structure and are able to reproduce several effects observed in other models with explicit spatial embedding, such as the maintenance of biodiversity and the emergence of global oscillations.
description: Supporting information available as EPAPS Document No. E-PLEEE8-78-144809 at http://ftp.aip.org/epaps/phys_rev_e/E-PLEEE8-78-144809/
Finite Variation Sensitivity Analysis for Discrete Topology Optimization of Continuum Structures
Creators: name: Cunha, Daniel Candeloro
name: de Almeida, Breno Vincenzo
name: Lopes, Heitor Nigro
name: Pavanello, Renato
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper proposes two novel approaches to perform more suitable sensitivity analyses for discrete topology optimization methods. To properly support them, we introduce a more formal description of the Bi-directional Evolutionary Structural Optimization (BESO) method, in which the sensitivity analysis is based on finite variations of the objective function. The proposed approaches are compared to a naive strategy; to the conventional strategy, referred to as First-Order Continuous Interpolation (FOCI) approach; and to a strategy previously developed by other researchers, referred to as High-Order Continuous Interpolation (HOCI) approach. The novel Woodbury approach provides exact sensitivity values and is a better alternative to HOCI. Although HOCI and Woodbury approaches may be computationally prohibitive, they provide useful expressions for a better understanding of the problem. The novel Conjugate Gradient Method (CGM) approach provides sensitivity values with arbitrary precision and is computationally viable for a small number of steps. The CGM approach is a better alternative to FOCI since, for appropriate initial conditions, it is always more accurate than the conventional strategy. The standard compliance minimization problem with volume constraint is considered to illustrate the methodology. Numerical examples are presented together with a broad discussion about BESO-type methods.
description: 31 pages, 25 figures, submitted to Structural and Multidisciplinary Optimization
Evaluation of pigment types and pigment contents in different rice growth stage of Taichung Native 1 with leaf crude rice ragged stunt disease
Creators: name: Thanat Na Phatthalung And Wipa Tangkananond
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: Rice ragged stunt virus (RRSV)
Brown planthopper (Nilaparvata lugens St?l)
Taichung Native 1 rice plant
plant pigment contents

description: Khon Kaen Agriculture Journal, 49, 1, 130-143
Blind Estimation of Multiple Carrier Frequency Offsets
Creators: name: Yu, Yuanning
name: Petropulu, Athina P.
name: Poor, H. Vincent
name: Koivunen, Visa
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Multiple carrier-frequency offsets (CFO) arise in a distributed antenna system, where data are transmitted simultaneously from multiple antennas. In such systems the received signal contains multiple CFOs due to mismatch between the local oscillators of transmitters and receiver. This results in a time-varying rotation of the data constellation, which needs to be compensated for at the receiver before symbol recovery. This paper proposes a new approach for blind CFO estimation and symbol recovery. The received base-band signal is over-sampled, and its polyphase components are used to formulate a virtual Multiple-Input Multiple-Output (MIMO) problem. By applying blind MIMO system estimation techniques, the system response is estimated and used to subsequently transform the multiple CFOs estimation problem into many independent single CFO estimation problems. Furthermore, an initial estimate of the CFO is obtained from the phase of the MIMO system response. The Cramer-Rao Lower bound is also derived, and the large sample performance of the proposed estimator is compared to the bound.
description: To appear in the Proceedings of the 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Athens, Greece, September 3-7, 2007
Neuroprotective and Restorative Potential of Remote Ischemic Conditioning Following Stroke
Creators: name: Dykes, Angela
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Remote Ischemic Conditioning
Rodent Model
Ischemic Stroke
Neuroprotection

description: Remote ischemic conditioning (RIC) is a noninvasive procedure where blood flow to a limb is repetitively reduced, sometimes called an “exercise memetic”. RIC delivered before (pre-RIC) or after (post-RIC) stroke is reportedly neuroprotective in preclinical stroke models. A review of the preclinical RIC literature revealed that studies almost exclusively use male subjects and a single stroke model (MCAO) that produces a large injury (~34% of hemisphere). To improve clinical translation, efficacy should be demonstrated in multiple stroke models and both sexes. Furthermore, the restorative potential of RIC (delivered past the neuroprotection window) to improve stroke recovery remains to be investigated. In male and female Sprague-Dawley rats (n=129) a standardized session (5min inflation, 5min deflation, 4 repetitions) of RIC was delivered using a pressurized cuff on the hindlimb. RIC was either delivered once 18h before, once 4hr acutely after or daily for 28 days beginning day 5 after endothelin-1 (ET-1) stroke. Infarct volumes were assessed 24hrs after stroke using MRI. To determine if RIC efficacy varied across stroke size, a hierarchical cluster analysis was used to divide rats into subgroups based on stroke size (small/large). RIC was effective in ET-1 which produced smaller strokes (“small”:5.2%, “large”:18.0% of hemisphere) than MCAO (~34%). This is more comparable to injury sizes seen clinically (4.5-14.0%). “Small” (42±4mm3) strokes were reduced by 39% (p=0.010, d=0.29) and “large” (146±8mm3) strokes were reduced by and 35% (p
Selection of antagonistic bacteria against Fusarium fujikuroi causing bakanae disease of rice
Creators: name: Jurarat Norkaew Wanporn Khemmuk Robert J. McGovern Chaiwat To-Anun
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: antagonistic bacteria
bakanae disease
Fusarium fujikuroi
rice

description: Khon Kaen Agriculture Journal, 49, 1, 144-154
Far Infrared Prperties of M Dwarfs
Creators: name: Gautier, Thomas. N.
name: Rieke, G. H.
name: Stansberry, John
name: Bryden, Geoffrey C.
name: Stapelfeldt, Karl R.
name: Werner, Michael W.
name: Beichman, Charles A.
name: Chen, Christine
name: Su, Kate
name: Trilling, David
name: Patten, Brian M.
name: Roellig, Thomas L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the mid- and far-infrared properties of nearby M dwarfs. Spitzer/MIPS measurements were obtained for a sample of 62 stars at 24 um, with subsamples of 41 and 20 stars observed at 70 um and 160 um respectively. We compare the results with current models of M star photospheres and look for indications of circumstellar dust in the form of significant deviations of K-[24 um] colors and 70 um / 24 um flux ratios from the average M star values. At 24 um, all 62 of the targets were detected; 70 um detections were achieved for 20 targets in the subsample observed; and no detections were seen in the 160 um subsample. No clear far-infrared excesses were detected in our sample. The average far infrared excess relative to the photospheric emission of the M stars is at least four times smaller than the similar average for a sample of solar-type stars. However, this limit allows the average fractional infrared luminosity in the M-star sample to be similar to that for more massive stars. We have also set low limits for the maximum mass of dust possible around our stars.
description: 28 pages, 4 figures, to be published in The Astrophysical Journal
The Application of Trichoderma asperellum Powder to Control Sheath Blight Disease of Rice Caused by Rhizoctonia solani
Creators: name: Sermwit Karnpakdee, Onuma Piasai
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: Trichoderma asperellum
Rhizoctonia solani
sheath blight disease
rice

description: Khon Kaen Agriculture Journal, 49, 1, 155-166
Additional file 1 of Revealing the evolution of the tumor immune microenvironment in follicular lymphoma patients progressing within 24 months using single-cell imaging mass cytometry
Creators: name: Liu, Long
name: Yu, Xingxing
name: Li, Zhifeng
name: He, Xiaohua
name: Zha, Jie
name: Lin, Zhijuan
name: Hong, Yan
name: Zheng, Huijian
name: Lai, Qian
name: Ding, Kaiyang
name: Jia, Xian
name: Fu, Guo
name: Yu, Haifeng
name: Yang, Haiyan
name: Li, Zhiming
name: Young, Ken H.
name: Xu, Bing
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Study methods and supplementary figures  and tables.
Gravity with a generalized conformal scalar field: Theory and solutions
Creators: name: Fernandes, Pedro G. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We naturally extend the theory of gravity with a conformally coupled scalar field by only requiring conformal invariance of the scalar field equation of motion and not of the action. The classically extended theory incorporates a scalar-Gauss-Bonnet sector and has second-order equations of motion, belonging to the Horndeski class. Remarkably, the theory features a purely geometrical field equation that allows for closed-form black hole solutions and cosmologies to be easily found. These solutions permit investigations of in-vogue scalar-Gauss-Bonnet corrections to the gravitational action without the need of resorting to approximations or numerical methods. We discuss on the connection to the recently formulated 4D Einstein-Gauss-Bonnet theory of gravity.
description: 7 pages, 1 ancillary file. V2: References added and typo corrected. Published in Physical Review D
Torsional oscillations of longitudinally inhomogeneous coronal loops
Creators: name: Zaqarashvili, T. V.
name: Murawski, K
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the effect of an inhomogeneous mass density field on frequencies and wave profiles of torsional Alfven oscillations in solar coronal loops. Dispersion relations for torsional oscillations are derived analytically in limits of weak and strong inhomogeneities. These analytical results are verified by numerical solutions, which are valid for a wide range of inhomogeneity strength. It is shown that the inhomogeneous mass density field leads to the reduction of a wave frequency of torsional oscillations, in comparison to that of estimated from mass density at the loop apex. This frequency reduction results from the decrease of an average Alfven speed as far as the inhomogeneous loop is denser at its footpoints. The derived dispersion relations and wave profiles are important for potential observations of torsional oscillations which result in periodic variations of spectral line widths. Torsional oscillations offer an additional powerful tool for a development of coronal seismology.
description: 6 pages, 3 figures, accepted in A&A
Measurement of technical efficiency of cricket farming of farmers in Nam Phong district, Khon Kaen province by Data Envelopment Analysis approach
Creators: name: Panatda Utaranakorn And Yardroong Mawongwai
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: technical efficiency
cricket
cricket farmers
Data Envelopment Analysis approach

description: Khon Kaen Agriculture Journal, 49, 1, 167-178
Pseudo-random Puncturing: A Technique to Lower the Error Floor of Turbo Codes
Creators: name: Chatzigeorgiou, Ioannis
name: Rodrigues, Miguel R. D.
name: Wassell, Ian J.
name: Carrasco, Rolando
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: It has been observed that particular rate-1/2 partially systematic parallel concatenated convolutional codes (PCCCs) can achieve a lower error floor than that of their rate-1/3 parent codes. Nevertheless, good puncturing patterns can only be identified by means of an exhaustive search, whilst convergence towards low bit error probabilities can be problematic when the systematic output of a rate-1/2 partially systematic PCCC is heavily punctured. In this paper, we present and study a family of rate-1/2 partially systematic PCCCs, which we call pseudo-randomly punctured codes. We evaluate their bit error rate performance and we show that they always yield a lower error floor than that of their rate-1/3 parent codes. Furthermore, we compare analytic results to simulations and we demonstrate that their performance converges towards the error floor region, owning to the moderate puncturing of their systematic output. Consequently, we propose pseudo-random puncturing as a means of improving the bandwidth efficiency of a PCCC and simultaneously lowering its error floor.
description: 5 pages, 1 figure, Proceedings of the 2007 IEEE International Symposium on Information Theory, Nice, France, June 24-29, 2007
On Boundary Exact Controllability of One-Dimensional Wave Equations with Weak and Strong Interior Degeneration
Creators: name: Kogut, Peter I.
name: Kupenko, Olha P.
name: Leugering, Günter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 35L80, 49J20, 49J45, 93C73

description: In this paper we study exact boundary controllability for a linear wave equation with strong and weak interior degeneration of the coefficient in the principle part of the elliptic operator. The objective is to provide a well-posedness analysis of the corresponding system and derive conditions for its controllability through boundary actions. Passing to a relaxed version of the original problem, we discuss existence and uniqueness of solutions, and using the HUM method we derive conditions on the rate of degeneracy for both exact boundary controllability and the lack thereof.
description: 25 pages
Lattice-Induced Double-Valley Degeneracy Lifting in Magnetic Field in Graphene
Creators: name: Luk'yanchuk, Igor A.
name: Bratkovsky, Alexander M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that the recently discovered double-valley splitting of the low-lying Landau level(s) in the Quantum Hall Effect in graphene can be explained as perturbative orbital interaction of intra- and inter-valley microscopic orbital currents with a magnetic field. This effect is provided by the translational-non-invariant terms corresponding to graphene's crystallographic honeycomb symmetry but do not exist in the relativistic theory of massless Dirac Fermions in Quantum Electrodynamics. We discuss recent data in view of these results.
The Arctic Circle Revisited
Creators: name: Colomo, F.
name: Pronko, A. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 15A52, 82B05, 82B20, 82B23

description: The problem of limit shapes in the six-vertex model with domain wall boundary conditions is addressed by considering a specially tailored bulk correlation function, the emptiness formation probability. A closed expression of this correlation function is given, both in terms of certain determinant and multiple integral, which allows for a systematic treatment of the limit shapes of the model for full range of values of vertex weights. Specifically, we show that for vertex weights corresponding to the free-fermion line on the phase diagram, the emptiness formation probability is related to a one-matrix model with a triple logarithmic singularity, or Triple Penner model. The saddle-point analysis of this model leads to the Arctic Circle Theorem, and its generalization to the Arctic Ellipses, known previously from domino tilings.
description: 16 pages, 3 figures
A practical, effective calculation of gamma difference distributions with open data science tools
Creators: name: Hančová, Martina
name: Gajdoš, Andrej
name: Hanč, Jozef
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation (stat.CO)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: At present, there is still no officially accepted and extensively verified implementation of computing the gamma difference distribution allowing unequal shape parameters. We explore four computational ways of the gamma difference distribution with the different shape parameters resulting from time series kriging, a forecasting approach based on the best linear unbiased prediction, and linear mixed models. The results of our numerical study, with emphasis on using open data science tools, demonstrate that our open tool implemented in high-performance Python(with Numba) is exponentially fast, highly accurate, and very reliable. It combines numerical inversion of the characteristic function and the trapezoidal rule with the double exponential oscillatory transformation (DE quadrature). At the double 53-bit precision, our tool outperformed the speed of the analytical computation based on Tricomi's $U(a, b, z)$ function in CAS software (commercial Mathematica, open SageMath) by 1.5-2 orders. At the precision of scientific numerical computational tools, it exceeded open SciPy, NumPy, and commercial MATLAB 5-10 times. The potential future application of our tool for a mixture of characteristic functions could open new possibilities for fast data analysis based on exact probability distributions in areas like multidimensional statistics, measurement uncertainty analysis in metrology as well as in financial mathematics and risk analysis.
description: 26 pages, 4 figures, 2 tables, 1 box, corrected typos in text and tables, more precise runtimes for MMA and MTB, added references, correct links for online materials
Sugar and raw sugar products export volumes forecasting models based on wavelet-nonlinear autoregressive neural network
Creators: name: Analaya Nansaior And Arthit Apichottanakul
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: time series forecasting
sugar and raw sugar products export volumes
wavelet-nonlinear autoregressive neural network model (WNAR)
thai sugarcane and sugar industry

description: Khon Kaen Agriculture Journal, 49, 1, 179-191
Effect of plant extracts (Phyllanthus emblica Allium ascalonicum and Sesbania grandiflora) on growth hematology and non-specific immune response of tilapia (Oreochromis niloticus)
Creators: name: Jomsuda Duangwongsa1* And Thepparath Ungsethaphand
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: tilapia
growth performance
non-specific immune
fish meat chemical composition

description: Khon Kaen Agriculture Journal, 49, 1, 192-202
Estimation of genetic parameters for growth traits in Snakeskin gourami, Trichogaster pectoralis (Regan) of 1st generation
Creators: name: Jomsuda Duangwongsa, Sanga Leesanga
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: Snakeskin gourami
genetic parameters
growth performance

description: Khon Kaen Agriculture Journal, 49, 1, 213-222
The importance of overcoming MOVPE surface evolution instabilities for >1.3 $μ$m metamorphic lasers on GaAs
Creators: name: Mura, Enrica E.
name: Gocalinska, Agnieszka M.
name: O'Brien, Megan
name: Loi, Ruggero
name: Juska, Gediminas
name: Moroni, Stefano T.
name: O'Callaghan, James
name: Arredondo, Miryam
name: Corbett, Brian
name: Pelucchi, Emanuele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We investigated and demonstrated a 1.3 $μ$m-band laser grown by metalorganic vapour phase epitaxy (MOVPE) on a specially engineered metamorphic parabolic graded In$_x$Ga$_{1-x}$As buffer and epitaxial structure on a GaAs substrate. Bottom and upper cladding layers were built as a combination of AlInGaAs and InGaP alloys in a superlattice sequence. This was implemented to overcome (previously unreported) detrimental surface epitaxial dynamics and instabilities: when single alloys are utilised to achieve thick layers on metamorphic structures, surface instabilities induce defect generation. This has represented a historically limiting factor for metamorphic lasers by MOVPE. We describe a number of alternative strategies to achieve smooth surface morphology to obtain efficient compressively strained In$_{0.4}$Ga$_{0.6}$As quantum wells in the active layer. The resulting lasers exhibited low lasing threshold with total slope efficiency of 0.34 W/A for a 500 $μ$m long ridge waveguide device. The emission wavelength is extended as far as 1360 nm.
Assessment of contamination and recovery of petroleum hydrocarbon in fishes and crustaceans after oil spill into the coastal area, ??Rayong province
Creators: name: Set Kraitat, Shettapong Meksumpun
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: oil spill
petroleum hydrocarbon
assessment
recovery

description: Khon Kaen Agriculture Journal, 49, 1, 223-233
A Spitzer Study of the Mass Loss Histories of Three Bipolar Pre-Planetary Nebulae
Creators: name: Do, Tuan
name: Morris, Mark
name: Sahai, Raghvendra
name: Stapelfeldt, Karl
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of far-infrared imaging of extended regions around three bipolar pre-planetary nebulae, AFGL 2688, OH 231.8+4.2, and IRAS 16342$-$3814, at 70 and 160 $μ$m with the MIPS instrument on the Spitzer Space Telescope. After a careful subtraction of the point spread function of the central star from these images, we place constraints on the existence of extended shells and thus on the mass outflow rates as a function of radial distance from these stars. We find no apparent extended emission in AFGL 2688 and OH 231.8+4.2 beyond 100 arcseconds from the central source. In the case of AFGL 2688, this result is inconsistent with a previous report of two extended dust shells made on the basis of ISO observations. We derive an upper limit of $2.1\times10^{-7}$ M$_\odot$ yr$^{-1}$ and $1.0\times10^{-7}$ M$_\odot$ yr$^{-1}$ for the dust mass loss rate of AFGL 2688 and OH 231.8, respectively, at 200 arcseconds from each source. In contrast to these two sources, IRAS 16342$-$3814 does show extended emission at both wavelengths, which can be interpreted as a very large dust shell with a radius of $\sim$ 400 arcseconds and a thickness of $\sim$ 100 arcseconds, corresponding to 4 pc and 1 pc, respectively, at a distance of 2 kpc. However, this enhanced emission may also be galactic cirrus; better azimuthal coverage is necessary for confirmation of a shell. If the extended emission is a shell, it can be modeled as enhanced mass outflow at a dust mass outflow rate of $1.5\times10^{-6}$ M$_\odot$ yr$^{-1}$ superimposed on a steady outflow with a dust mass outflow rate of $1.5\times10^{-7}$ M$_\odot$ yr$^{-1}$. It is likely that this shell has swept up a substantial mass of interstellar gas during its expansion, so these estimates are upper limits to the stellar mass loss rate.
description: 31 pages, 12 figures, accepted to AJ
title: Analyse d'une référentialisation dynamique au coeur d'une évaluation collaborative d'un système de formation : le cas d'une recherche-intervention au service départemental d'incendie et de secours de la Haute-Garonne
Creators: name: Chauffriasse, Christelle
name: Aussel, Lucie
Publisher: name: La Revue LEeE
Year: 2022
Subjects: évaluation collaborative
référentialisation
recherche-intervention évaluative
sapeurs-pompiers

description: La référentialisation est un processus évaluatif central qui met au jour l’élaboration d’un dispositif d’évaluation (Figari et al., 1994 ; 2006 ; 2014). L’objectif de cet article est de caractériser la dimension dynamique qui le définit en observant l’étape de conception d’un référentiel d’évaluation réalisé par un groupe de travail sur deux séances de deux heures. L’analyse révèle le rôle que joue l’expérience et le vécu des évaluateur·rices durant la phase d’élaboration du référentiel d’évaluation. Son identification permet d’apporter des éléments de compréhension sur la manière dont se co-constituent les référents et référés. Une deuxième dimension est analysée : celle des échanges entre les participant·es. Les modes d’élaboration du référentiel sont ainsi dévoilés et traduisent le travail collectif de cette évaluation collaborative. Cette étude s’effectue dans le cadre d’une recherche-intervention de nature évaluative dont le projet commun aux sphères de la recherche et de l’intervention est de mener une évaluation collaborative sur le système de formation des sapeur·ses-pompier·ières du département de la Haute-Garonne.
Effects of brewer's yeast on nutritional value and in vitro digestibility of rice bran
Creators: name: Wanida Biathong And Darunee Srichana
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: rice bran
brewer's yeast
nutritional value
in vitro digestibility

description: Khon Kaen Agriculture Journal, 49, 1, 234-240
Multiparticle correlations and momentum conservation in nucleus-nucleus collisions
Creators: name: Borghini, Nicolas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Particle correlations are very actively studied in heavy-ion collisions at ultra-relativistic energies. Here, an attempt is made at determining a proper reference for such studies, by taking properly into account the multiparticle correlations induced by the conservation of total momentum in the collisions.
description: 9 pages, talk given at the workshop "High-pT physics at LHC", March 23-27, 2007, Jyvaskyla, Finland. v2: final version
Extending the theory of phonon-mediated superconductivity in quasi-2D
Creators: name: Hague, J. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: I present results from an extended Migdal-Eliashberg theory of electron-phonon interactions and superconductivity. The history of the electron-phonon problem is introduced, and then study of the intermediate parameter regime is justified from the energy scales in the cuprate superconductors. The Holstein model is detailed, and limiting cases are examined to demonstrate the need for an extended theory of superconductivity. Results of the extended approximation are shown, including spectral functions and phase diagrams. These are discussed with reference to Hohenberg's theorem, the Bardeen-Cooper-Schrieffer theory and Coulomb repulsion.
description: Reprint to improve access. 10 pages, 7 figures.
Effects of functional feed of prebiotics and synbiotics from supplementation of trimmed asparagus by-products on nutrient digestibility, volatile fatty acid, cecal microbiota, and small intestinal histology of laying hens
Creators: name: Manatsanun Nopparatmaitree, Verachai Chumsangchotisakun
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: functional feed
prebiotics
synbiotics
asparagus
digestibility
and laying hen diets

description: Khon Kaen Agriculture Journal, 49, 1, 241-257
Many finite-dimensional lifting bundle gerbes are torsion
Creators: name: Roberts, David Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 53C08, Secondary 55R35, 57R20

description: Many bundle gerbes constructed in practice are either infinite-dimensional, or finite-dimensional but built using submersions that are far from being fibre bundles. Murray and Stevenson proved that gerbes on simply-connected manifolds, built from finite-dimensional fibre bundles with connected fibres, always have a torsion $DD$-class. In this note I prove an analogous result for a wide class of gerbes built from principal bundles, relaxing the requirements on the fundamental group of the base and the connected components of the fibre, allowing both to be nontrivial. This has consequences for possible models for basic gerbes, the classification of crossed modules of finite-dimensional Lie groups, the coefficient Lie-2-algebras for higher gauge theory on principal 2-bundles, and finite-dimensional twists of topological $K$-theory.
description: 18+1 pages. v3 Extended main result much further, additional nontrivial examples. v2 strengthened main result with a simpler proof
WMAP 3yr data with the CCA: anomalous emission and impact of component separation on the CMB power spectrum
Creators: name: Bonaldi, A.
name: Ricciardi, S.
name: Leach, S.
name: Stivoli, F.
name: Baccigalupi, C.
name: De Zotti, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Correlated Component Analysis (CCA) allows us to estimate how the different diffuse emissions mix in CMB experiments, exploiting also complementary information from other surveys. It is especially useful to deal with possible additional components. An application of CCA to WMAP maps assuming that only the canonical Galactic emissions are present, highlights the widespread presence of a spectrally flat "synchrotron" component, largely uncorrelated with the synchrotron template, suggesting that an additional foreground is indeed required. We have tested various spectral shapes for such component, namely a power law as expected if it is flat synchrotron, and two spectral shapes that may fit the spinning dust emission: a parabola in the logS - log(frequency) plane, and a grey body. Quality tests applied to the reconstructed CMB maps clearly disfavour two of the models. The CMB power spectra, estimated from CMB maps reconstructed exploiting the three surviving foreground models, are generally consistent with the WMAP ones, although at least one of them gives a significantly higher quadrupole moment than found by the WMAP team. Taking foreground modeling uncertainties into account, we find that the mean quadrupole amplitude for the three "good" models is less than 1 sigma below the expectation from the standard LambdaCDM model. Also the other reported deviations from model predictions are found not to be statistically significant, except for the excess power at l~40. We confirm the evidence for a marked North-South asymmetry in the large scale (l < 20) CMB anisotropies. We also present a first, albeit preliminary, all-sky map of the "anomalous" component.
description: 14 pages, 17 figures, submitted to MNRAS, references added
Massively-multiplexed generation of Bell-type entanglement using a quantum memory
Creators: name: Lipka, Michał
name: Mazelanik, Mateusz
name: Leszczyński, Adam
name: Wasilewski, Wojciech
name: Parniak, Michał
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: High-rate generation of hybrid photon-matter entanglement remains a fundamental building block of quantum network architectures enabling protocols such as quantum secure communication or quantum distributed computing. While a tremendous effort has been made to overcome technological constraints limiting the efficiency and coherence times of current systems, an important complementary approach is to employ parallel and multiplexed architectures. Here we follow this approach experimentally demonstrating the generation of bipartite polarization-entangled photonic states across more than 500 modes, with a programmable delay for the second photon enabled by qubit storage in a wavevector multiplexed cold-atomic quantum memory. We demonstrate Clauser, Horne, Shimony, Holt inequality violation by over 3 standard deviations, lasting for at least 45 μs storage time for half of the modes. The ability to shape hybrid entanglement between the polarization and wavevector degrees of freedom provides not only multiplexing capabilities but also brings prospects for novel protocols.