cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Resolving the Mass Hierarchy with Atmospheric Neutrinos using a Liquid Argon Detector
Creators: name: Gandhi, Raj
name: Ghoshal, Pomita
name: Goswami, Srubabati
name: Sankar, S Uma
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the potential offered by large-mass Liquid Argon detectors for determination of the sign of Delta m_{31}^2, or the neutrino mass hierarchy, through interactions of atmospheric neutrinos. We give results for a 100 kT sized magnetized detector which provides separate sensitivity to ν_μ, \barν_μand, over a limited energy range, to ν_e, \barν_e.We also discuss the sensitivity for the unmagnetized version of such a detector. After including the effect of smearing in neutrino energy and direction and incorporating the relevant statistical,theoretical and systematic errors, we perform a binned χ^2 analysis of simulated data. The χ^2 is marginalized over the presently allowed ranges of neutrino parameters and determined as a function of θ_{13}. We find that such a detector offers superior capabilities for hierarchy resolution, allowing a > 4σdetermination for a 100 kT detector over a 10 year running period for values of \sin^2 2θ_{13} \ge 0.05. For an unmagnetized detector, a 2.5σhierarchy sensitivity is possible for \sin^2 2θ_{13} = 0.04.
description: 13 pages, 3 figures, typing error in the abstract corrected, no other change
Nanocompositi a matrice termoindurenti contenenti filler ceramici per l'isolamento elettrico
Creators: name: Scamardella, Anna Maria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: Nel lavoro di tesi sono stati realizzati e caratterizzati compositi polimerici caricati con nanoparticelle ceramiche. Un’analisi morfologica dei compositi è stata effettuata per valutare la dispersione e la distribuzione dei filler nella matrice polimerica, valutando la bontà del processo di produzione. L’effetto del contenuto di filler sulle proprietà chimico-fisiche, meccaniche ed elettriche dei compositi è stato valutato al fine di realizzare materiali con le performance desiderate.
Landscape Implications of Extended Higgs Models
Creators: name: Clavelli, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From several points of view it is strongly suggested that the current universe is unstable and will ultimately decay to one that is exactly supersymmetric (susy). The possibility that atoms and molecules form in this future universe requires that the degenerate electron/selectron mass is non-zero and hence that electroweak symmetry breaking (EWSB) survives the phase transition to exact susy. However, the minimal supersymmetric standard model (MSSM) and several of its extensions have no EWSB in the susy limit. Among the extended higgs models that have been discussed one stands out in this regard. The higgs sector that is revealed at the Large Hadron Collider (LHC) will therefore have implications for the future universe. We also address the question as to whether the transition to the exact susy phase with EWSB is exothermic.
description: 15 pages, 2 figures, extended analysis, some significant changes version 3 to appear in Int. J. Mod. Phys. A
Incidenza dei sottotipi di orticaria fisica e validazione dei relativi test in una coorte di pazienti con orticaria cronica afferenti alla Cattedra di Immunologia Clinica ed Allergologia dell’Università di Napoli Federico II
Creators: name: Galeotalanza, Caterina
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: La ricerca ha valutato in termini epidemiologici e clinici la relazione tra forme spontanee e forme inducibili di orticaria cronica, integrando l’iter diagnostico bioumorale e strumentale dei pazienti con orticaria cronica mediante definizione di un protocollo diagnostico per i sottotipi di orticaria fisica che ha standardizzato metodologia di esecuzione dei test di provocazione, tempi di osservazione e criteri di interpretazione dei risultati. Tale attività  ha coinvolto nel periodo di attività 2006-2009 258 pazienti, prevalentemente di sesso femminile ed età compresa tra 18 e 78 anni, selezionati mediante questionario in base alla presenza anamnestica di nesso temporo-causale tra manifestazioni cliniche ed esposizione a forze fisiche. Ai fini della validazione del protocollo diagnostico è stata valutata selettività e  riproducibilità delle procedure. Sono stati definiti prevalenza globale e frequenza dei sottotipi di orticaria fisica, associazione con angioedema e concomitanti condizioni patologiche. Le differenze nelle stime di prevalenza reale e apparente misurate per ciascun sottotipo di orticaria fisica sono indicative della presenza di pazienti con manifestazioni cliniche in risposta a stimoli fisici con soglia di elicitazione differente da quella testata,  variabile in relazione allo stato di attività dell’orticaria, alle pregresse terapie effettuate ed alla concomitanza di altre affezioni.
I risultati dei test nei pazienti con tireopatia (complessivamente il 16,6% del totale) hanno fornito osservazioni preliminari circa la correlazione tra orticaria e patogenesi autoimmune della tireopatia, l’associazione tra sottotipi di orticaria fisica e specifiche forme di tireopatia, il differente contributo della normalizzazione della funzione tiroidea alla remissione dell’orticaria nei  sottogruppi di tireopatia, confermando, nel complesso,  la relazione esistente tra orticaria cronica e patologie della tiroide. L’associazione tra forme fisiche di orticaria e tireopatia non autoimmune unitamente alla frequente remissione dell’orticaria alla normalizzazione del TSH supportano un modello fisiopatologico delle orticarie fisiche quali espressione di una reversibile alterazione della releasability mastocitaria in presenza di signaling in grado di modificare la soglia di apertura di canali ionici/ meccanosensori membranari ed indurre attivazione cellulare  per stimoli subliminari.
Evidence for recent star formation in BCGs: a correspondence between blue cores and UV excess
Creators: name: Pipino, A.
name: Kaviraj, S.
name: Bildfell, C.
name: Babul, A.
name: Hoekstra, H.
name: Silk, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a joint analysis of near-ultraviolet (NUV) data from the GALEX mission and (optical) colour profiles for a sample of 7 Brightest Cluster Galaxies (BCGs) in the Canadian Cluster Comparison Project. We find that every BCG which has a blue rest-frame UV colour also shows a blue-core in its optical colour profile. Conversely, BCGs that lack blue cores and show monotonic colour gradients typical of old elliptical galaxies, are red in the UV. We interpret this as evidence that the NUV enhancement in the blue BCGs is driven by recent star formation and not from old evolved stellar populations such as horizontal branch stars. The recent star formation in the blue BCGs typically has an age less than 200 Myrs and contributes mass fractions of less than a percent. Although the sample studied here is small, we demonstrate, for the first time, a one-to-one correspondence between blue cores in elliptical galaxies (in particular BCGs) and a NUV-enhancement observed using GALEX. The combination of this one-to-one correspondence and the consistently young age of recent star formation, coupled with additional correlations with the host cluster's X-ray properties, strongly suggests that the star formation is fueled by gas cooling out of the intracluster medium. In turn, this implies that any AGN heating of the intracluster medium in massive clusters only acts to reduce the magnitude of the cooling flow and that once this flow starts, it is nearly always active. (abridged)
description: 11 pages, 5 figures, added references, corrected typos, matches MNRAS accepted version
Superposition type coherent states in all dimensional loop quantum gravity
Creators: name: Long, Gaoping
name: Zhang, Cong
name: Zhang, Xiangdong
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new kind of coherent state for the general $SO(D+1)$ formulation of loop quantum gravity in the $(1+D)$-dimensional space-time. Instead of Thiemann's coherent state for $SO(D+1)$ gauge theory, our coherent spin-network state is given by constructing proper superposition over quantum numbers of the spin-networks with vertices labelled by the coherent intertwiners. Such superposition type coherent states are labelled by the so-called generalized twisted geometric variables which capture the geometric meaning of discretized general relativity. We study the basic properties of this kind of coherent states, i.e., the completeness and peakedness property. Moreover, we show that the superposition type coherent states are consistent with Thiemann's coherent state for $SO(D+1)$ gauge theory in large $η$ limit.
Spinodal decomposition of low-density asymmetric nuclear matter
Creators: name: Baran, V.
name: Colonna, M.
name: Di Toro, M.
name: Larionov, A. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the dynamical properties of asymmetric nuclear matter at low density. The occurrence of new instabilities, that lead the system to a dynamical fragment formation, is illustrated, discussing in particular the charge symmetry dependence of the structure of the most important unstable modes. We observe that instabilities are reduced by charge asymmetry, leading to larger size and time scales in the fragmentation process. Configurations with less asymmetric fragments surrounded by a more asymmetric gas are favoured. Interesting variances with respect to a pure thermodynamical prediction are revealed, that can be checked experimentally. All these features are deeply related to the structure of the symmetry term in the nuclear Equation of State (EOS) and could be used to extract information on the low density part of the EOS.
description: 10 pages, 10 figures
Possible multiband superconductivity in the quaternary carbide YRe2SiC
Creators: name: de Faria, Leandro R.
name: Ferreira, Pedro P.
name: Correa, Lucas E.
name: Eleno, Luiz T. F.
name: Torikachvili, Milton S.
name: Machado, Antonio J. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report for the first time the occurrence of superconductivity in the quaternary silicide carbide YRe2SiC with Tc = 5.9 K. The emergence of superconductivity was confirmed by means of magnetic susceptibility, electrical resistivity, and heat capacity measurements. The presence of a well developed heat capacity feature at Tc confirms that superconductivity is a bulk phenomenon, while a second feature in the heat capacity near 0.5 Tc combined with the unusual temperature dependence of the upper critical field Hc2(T) indicate the presence of a multiband superconducting state. Additionally, the linear dependence of the lower critical field Hc1 with temperature resemble the behavior found in compounds with unconventional pairing symmetry. Band structure calculations reveal YRe2SiC could harbor a non-trivial topological state and that the low-energy states occupy multiple disconnected sheets at the Fermi surface, with different degrees of hybridization, nesting, and screening effects, therefore making unconventional multiband superconductivity plausible.
description: 17 pages, 5 figures
Improvement of venting procedures and energy consumption by modification of conventional steam retorts
Creators: name: Bennett, Lee
Publisher: name: University of British Columbia
Year: 2010

description: The sterilization process for low acid canned foods requires accurate determination of the food product thermal characteristics as well as knowledge of the process equipment environment. Establishment of the retort vent schedule ensures that the temperature distribution within the retort is uniform through complete removal of air by purging with live steam. This has proven to be a successful procedure but is not without cost implications. Therefore investigation to quantify energy requirements and minimize energy costs associated with retort venting were studied. Energy utilization by a 4-crate vertical steam retort was investigated. Ballast loads of white beans in brine were processed in 300x407 cans to simulate production conditions. The steam energy use with a vent schedule of 7 minutes after the retort reached 107°C averaged 902 MJ per load. Losses due to venting accounted for about 16.0% of the total energy. The other major energy losses included 45.0% to heat the product, 13.9% for bleeders and blowdown and 9.34% to heat the retort shell and crates. These approximate percentages for each category would vary due to factors such as can size, process time and product characteristics. Initially, the recommended minimum guidelines pertaining to the steam spreader configuration and number of steam ports were followed. Later these were modified in an effort to enhance venting efficacy. These changes proved not to be successful as indicated in the temperature distribution plots and required come-up times in the test retort. The final modification focused on an increase in the steam supply line and steam control valve dimensions. It was hoped that the residual air in the retort vessel could be purged more effectively in terms of achieving a minimum vent schedule and come-up time. The largest spreader of 1.5 inches (38.1 mm) diameter significantly reduced venting and come-up times; however, an excessive amount of steam was expelled to the atmosphere through the vent outlet. An intermediate spreader dimension of 1.25 inch (31.7 mm) diameter proved to maintain the optimum conditions for steam utilization and venting efficacy as compared to the 1.0 and 1.5 inch spreaders. Investigations to determine the minimum vent schedule and come-up time were also carried out. Examination of the temperature distribution profile and energy balance equation revealed that the present vent schedule could be reduced. A reduction of the vent outlet port size was proposed in an attempt to increase back pressure in the retort system. It was believed that higher steam pressure would accelerate equilibration of temperature by reducing the amount of steam escaping with air. Experiments revealed that neither energy saving nor temperature distribution profiles were sufficiently improved to warrant further investigation.
Simulation of Growth and Yield of Upland Rice Grown under Irrigated Lowland Condition
Creators: name: Rodchaneekorn Sriboonruang
name: Saibua Khempet
name: Sakda Jongkaewwattana
Publisher: name: Faculty of Agriculture
Year: 2019
Subjects: Rice Growth Model, Simulation, Upland rice

description: Khon Kaen Agriculture Journal, 47, 3, 485-494
N=2 supersymmetric unconstrained matrix GNLS hierarchies are consistent
Creators: name: Delduc, F.
name: Lechtenfeld, O.
name: Sorin, A. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We develop a pseudo-differential approach to the N=2 supersymmetric unconstrained matrix (k|n,m)-Generalized Nonlinear Schroedinger hierarchies and prove consistency of the corresponding Lax-pair representation (nlin.SI/0201026). Furthermore, we establish their equivalence to the integrable hierarchies derived in the super-algebraic approach of the homogeneously-graded loop superalgebra sl(2k+n|2k+m)\otimes C[{lambda},{lambda}^{-1}] (nlin.SI/0206037). We introduce an unconventional definition of N=2 supersymmetric strictly pseudo-differential operators so as to close their algebra among themselves.
description: 12 pages, LaTex
Neutral-Neutral Synthesis of Organic Molecules in Cometary Comae
Creators: name: Cordiner, M. A
name: Charnley, S. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Remote and in-situ observations of cometary gases have revealed the presence of a wealth of complex organic molecules, including carbon chains, alcohols, imines and the amino acid glycine. Such chemical complexity in cometary material implies that impacts by comets could have supplied reagents for prebiotic chemistry to young planetary surfaces. However, the assumption that some of the molecules observed in cometary comae at millimetre wavelengths originate from ices stored inside the nucleus has not yet been proven. In fact, the comae of moderately-active comets reach sufficient densities within a few thousand kilometers of the nucleus for an active (solar radiation-driven) photochemistry to ensue. Here we present results from our latest chemical-hydrodynamic models incorporating an updated reaction network, and show that the commonly-observed HC3N (cyanoacetylene) and NH2CHO (formamide) molecules can be efficiently produced in cometary comae as a result of two-body, neutral-neutral, gas-phase reactions involving well-known coma gases. In the presence of a near-nucleus distributed source of CN (similar to that observed by the Rosetta spacecraft at comet 67P), we find that sufficient HC$_3$N and NH2CHO can be synthesized to match the abundances of these molecules in previous observations of Oort Cloud comets. The precise origin of these (and other) complex organic molecules in cometary comae can be verified through interferometric mapping observations, for example, using the Atacama Large Millimeter/submillimeter Array (ALMA).
description: Accepted for publication in MNRAS, April 15th 2021
Trattamento dell'ipermetropia con laser ad eccimeri
Creators: name: Gagliardi, Vincenzo
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2006

description: Scopo della tesi è di valutare l’efficacia del flying spot nel trattamento dell’ipermetropia semplice, dell’astigmatismo ipermetropico semplice e composto. Tali dati sono stati confrontati con quelli ottenuti mediante l’utilizzo di un laser ad eccimeri scanning slit (a scansione).
MATERIALI E METODI: Per i trattamenti PRK è stato utilizzato un laser flying spot Mel G 70 G-scan Asclepion- Meditec provvisto di sistema eye-tracking. Sono stati sottoposti a trattamento 54 occhi, di pazienti di età compresa tra 20 e 56 anni. Tali dati sono stati confrontati con quelli ottenuti mediante l’utilizzo di un laser ad eccimeri  a scansione Mel G 60/94 G-scan Asclepion- Meditec su 66 occhi di pazienti di età compresa tra 20 e 58 anni. Per valutare l’efficacia del trattamento del difetto cilindrico è stata inoltre effettuata una valutazione dell’astigmatismo post-PRK mediante analisi vettoriale secondo Alpins.
RISULTATI E CONCLUSIONI:I risultati del nostro studio, che tengono conto non solo dell’acuità visiva post-operatoria, ma anche del calcolo in asse ed in diottrie del cilindro post-operatorio consentono di affermare, dopo un follow-up di 3 anni, che la tecnologia flying spot è sicuramente superiore a quella a scansione nel trattamento dell’ipermetropia e dell’astigmatismo ipermetropico e che i risultati ottenuti con la tecnologia flying spot si mantengono costanti nel tempo,come evidenziato dal follow-up di 36 mesi.
title: Hydrocracken von Fischer-Tropsch-Wachsen mit Polyoxometallaten als Katalysator
Creators: name: Rausch, Peter
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Power to Liquid
subject: hydrocracking
subject: polyoxometallates
subject: heteropolyacid
subject: Fischer-Tropsch
subject: heterogeneous catalysis
subject: synthetic fuels
subject: 660

description: Fossile Kohlenstoffquellen wie Erdgas bzw. -öl stellen nach wie vor überwiegend den Ausgangpunkt zur Produktion von Kraftstoffen sowie von organischen Chemikalien dar. Um eine weitere Zunahme der CO2-Konzentration in der Atmosphäre zu verhindern oder diese bestenfalls zu senken, bedarf es vor dem Hintergrund des anthropogenen Treibhauseffektes einer Substitution dieser Kohlenstoffquellen. Hierfür kommen unter anderem Power-to-Liquid-Verfahren (PtL) wie die Fischer-Tropsch-Synthese (FTS) in Frage, mit welcher sich regenerativ erzeugter Wasserstoff (H2) und Kohlenmonoxid (CO) überwiegend in lineare Alkane umsetzen lassen. CO lässt sich dabei über die Reverse Water-Gas-Shift-Reaktion erzeugen, für welche Wasserstoff und CO2 benötigt werden. Kohlendioxid kann idealerweise aus der Atmosphäre oder alternativ aus Rauchgasen entnommen werden. Üblicherweise wird bei der FTS eine Prozessführung angestrebt, welche die Ausbeute an Methan und kurzkettiger Gase minimiert, gleichzeitig jedoch einen relativ hohen Anteil an Wachsen mit sich bringt. Diese können nachfolgend in einem Hydrocracker unter hohen Wasserstoffpartialdrücken katalytisch wieder möglichst selektiv in gewünschte flüssige Kohlenwasserstofffraktionen gespalten werden. Um die Rentabilität des Gesamtprozesses zu gewährleisten, bedarf es dabei möglichst effizienter Einzelprozesse. Vor diesem Hintergrund befasst sich die vorliegende Arbeit mit der Frage, inwiefern Polyoxometallate als Hydrocrackingkatalysatoren verwendet werden können und ob sich gegebenenfalls Vorteile gegenüber herkömmlichen Katalysatoren wie sauren Zeolithen ergeben. Hierfür wurden basierend auf der Heteropolysäure H3PW12O40 Platin-dotierte, saure Cäsiumsalze (Pt/Cs2,5H0,5PW12O40, Pt/Cs2,5H1,5PVW11O40 und Pt/Cs2,7H2,3PV2W10O40) synthetisiert, charakterisiert und in Hydrocrackingversuchen mit Modellalkanen und Fischer-Tropsch-Wachs hinsichtlich ihrer Aktivität und Selektivität untersucht. Dabei ließ sich zeigen, dass sich durch eine gezielte Substitution einzelner Wolfram- durch Vanadium-Atome die spezifische Säurestärke der Katalysatoren schrittweise mindern lässt. Hierdurch lassen sich unerwünschte Sekundärspaltreaktionen während der Katalyse vermindern und so die Produktverteilungen im Bereich von Naphta hin zu Mitteldestillaten verschieben. Insbesondere Pt/Cs2,5H0,5PW12O40 zeigt eine deutlich höhere Aktivität als der Referenzkatalysator Pt/H-Y, während Pt/Cs2,5H1,5PVW11O40 und Pt/Cs2,7H2,3PV2W10O40 mit steigendem Vanadiumgehalt deutlich an Aktivität verlieren.
title: Design, Preparation and Application of Multifunctional Materials : From 2D Nonwovens to 3D Nanofiber-Grass Coatings
Creators: name: Chen, Lu
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Multifunctional Materials
subject: Electrospinning
subject: Flocking technique
subject: 540

description: Two-dimensional superhydrophobic nonwovens and three-dimensional multifunctional matrixes are successfully prepared through electrospinning and flocking techniques. By virtue of their complex morphologies and geometry structures, they exhibited versatile functionalities and wide application possibilities.
Expression of CIPK15 Gene in Thai Rice Varieties under Submergence
Creators: name: Chutima Suaythaisong
name: Sansanee Jamjod
name: Tonapa Pusadee
Publisher: name: Faculty of Agriculture
Year: 2019
Subjects: Adaptation, CIPK15, Germination, Submergence, Thai Rice varieties

description: Khon Kaen Agriculture Journal, 47, 3, 495-508
Precision in high resolution absorption line modelling, analytic Voigt derivatives, and optimisation methods
Creators: name: Webb, John K.
name: Carswell, Robert F.
name: Lee, Chung-Chi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: This paper describes the optimisation theory on which VPFIT, a non-linear least-squares program for modelling absorption spectra, is based. Particular attention is paid to precision. Voigt function derivatives have previously been calculated using numerical finite difference approximations. We show how these can instead be computed analytically using Taylor series expansions and look-up tables. We introduce a new optimisation method for an efficient descent path to the best-fit, combining the principles used in both the Gauss-Newton and Levenberg-Marquardt algorithms. A simple practical fix for ill-conditioning is described, a common problem when modelling quasar absorption systems. We also summarise how unbiased modelling depends on using an appropriate information criterion to guard against over- or under-fitting. The methods and the new implementations introduced in this paper are aimed at optimal usage of future data from facilities such as ESPRESSO/VLT and HIRES/ELT, particularly for the most demanding applications such as searches for spacetime variations in fundamental constants and attempts to detect cosmological redshift drift.
description: 15 pages, 7 figures, to appear in MNRAS
Special invited paper. Large deviations
Creators: name: Varadhan, S. R. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60-02, 60F10 (Primary)

description: This paper is based on Wald Lectures given at the annual meeting of the IMS in Minneapolis during August 2005. It is a survey of the theory of large deviations.
description: Published in at http://dx.doi.org/10.1214/07-AOP348 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Genetic variability of yield, yield components and agronomic traits of commercial waxy corn hybrids in Thailand
Creators: name: Layang Naw Ja
name: Sompong Chankaew
name: Jirawat Sanitchon
name: Kamol Lertrat
name: Bhalang Suriharn
Publisher: name: Faculty of Agriculture
Year: 2019
Subjects: waxy corn, hybrid, genetic variability, breeding, correlation

description: Khon Kaen Agriculture Journal, 47, 3, 509-518
Evolution of bare quark stars in full general relativity: Single star case
Creators: name: Zhou, Enping
name: Kiuchi, Kenta
name: Shibata, Masaru
name: Tsokaros, Antonios
name: Uryu, Koji
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We introduce our approaches, in particular the modifications of the primitive recovery procedure, to handle bare quark stars in numerical relativity simulations. Reliability and convergence of our implementation are demonstrated by evolving two triaxially rotating quark star models with different mass as well as a differentially rotating quark star model which has sufficiently large kinetic energy to be dynamically unstable. These simulations allow us to verify that our method is capable of resolving the evolution of the discontinuous surface of quark stars and possible mass ejection from them. The evolution of the triaxial deformation and the properties of the gravitational-wave emission from triaxially rotating quark stars have been also studied, together with the mass ejection of the differentially rotating case. It is found that supramassive quark stars are not likely to be ideal sources of continuous gravitational wave as the star recovers axisymmetry much faster than models with smaller mass and gravitational-wave amplitude decays rapidly in a timescale of $10\,$ms, although the instantaneous amplitude from more massive models is larger. As with the differentially rotating case, our result confirms that quark stars could experience non-axisymmetric instabilities similar to the neutron star case but with quite small degree of differential rotation, which is expected according to previous initial data studies.
description: 17 pages, 17 figures; accepted for publication in PRD (submitted to PRD in July 2020)
Moundinothrips robustus Bhatti
Creators: name: Zhang, Shimeng
name: Wang, Zhaohong
name: Li, Yajin
name: Mound, Laurence
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Thripidae
Moundinothrips
Moundinothrips robustus

description: Moundinothrips robustus (Bhatti)
(Fig. 12)
The Only species in this genus has been knOwn frOm a single female cOllected in CibOdas BOtanic Gardens, BOgOr, Java. The species is similar in general appearance (Fig. 12) tO members Of the genus Taeniothrips, but the first antennal segment bears a pair Of dOrsO-apical setae, the prOnOtum has Only a single pair Of pOsterO-marginal setae, the mesO and the metasternal furca bOth have a well-develOped spinula, and sternite VII bears Only twO pairs Of marginal setae. These character states suggest that the Taeniothrips -like appearance is nOt an indicatiOn Of any systematic relatiOnship. The presence in China Of a species frOm Java is nOt particularly surprising, and further members Of the Taeniothrips cOmplex (MOund et al. 2012) are likely tO be discOvered in sOuthern China.
New recOrds: China, Yunnan, all cOllected by Zhang HR & Li YJ: Yuxi City, MOpan MOuntain, 1 female frOm unknOwn plant, 17.iii.2015; Wuding COunty, LiOn MOuntain, 3 females frOm fern, 14.v.2017; Shilin COunty, 1 female frOm Photinia serrulata, 15.iii.2017, in YAU.
description: Published as part of Zhang, Shimeng, Wang, Zhaohong, Li, Yajin & Mound, Laurence, 2018, One new species, two generic synonyms and eight new records of Thripidae from China (Thysanoptera), pp. 370-378 in Zootaxa 4418 (4) on page 373, DOI: 10.11646/zootaxa.4418.4.3, http://zenodo.org/record/1244922
Improved estimation of Fokker-Planck equations through optimisation
Creators: name: Nawroth, A. P.
name: Peinke, J.
name: Kleinhans, D.
name: Friedrich, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: An improved method for the description of hierarchical complex systems by means of a Fokker-Planck equation is presented. In particular the limited-memory Broyden-Fletcher-Goldfarb-Shanno algorithm for constraint problems (L-BFGS-B) is used to minimize the distance between the numerical solutions of the Fokker-Planck equation and the empirical probability density functions and thus to estimate properly the drift and diffusion term of the Fokker-Planck equation. The optimisation routine is applied to a time series of velocity measurements obtained from a turbulent helium gas jet in order to demonstrate the benefits and to quantify the improvements of this new optimisation routine.
The relationship between sleep and physical activity in children
Creators: name: Antczak, Devan James
Publisher: name: Australian Catholic University
Year: 2020

description: The aim of this thesis was to investigate the relationship between physical activity and sleep in children. The thesis has contributed to the empirical body of evidence with three studies. Study 1 (Chapter 2) was a systematic review and meta-analysis of the literature investigating the relationship between physical activity and sleep in children. Overall, the meta-analysis found little association between physical activity and sleep (r = .02, 95% confidence interval = -.03 to .07) and no examined variables significantly moderated the overall effect. Exploratory analyses showed only two significant but weak associations for vigorous physical activity with sleep (r = .09, 95% CI = .01 to .17, I2 = 66.3%), specifically sleep duration (r = .07, 95% CI = .00 to .14, I2 = 41.1%). Study 2 (Chapter 3) investigated both longer-term (i.e., habitual) and day-to-day associations among a large sample of Australian children. Longer-term, the trajectories of change in physical activity over time showed little association with the trajectory of change in sleep. The day-to-day analysis showed that increased physical activity improves sleep the following night and that better sleep predicts an increase in physical activity the following day. Study 3 (Chapter 4) investigated accelerometer wear-time criteria for how valid a night should be and the total number of valid nights that are needed to get reliable estimates of habitual sleep duration, sleep efficiency, time in bed, and sleep timing. The study found that, generally, 5 nights of valid data is enough to get acceptable estimates of habitual sleep behaviour. Implications, strengths, and limitations of the thesis are discussed in Chapter 5.
Interplay of charge noise and coupling to phonons in adiabatic electron transfer between quantum dots
Creators: name: Krzywda, Jan A.
name: Cywiński, Łukasz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Long-distance transfer of quantum information in architectures based on quantum dot spin qubits will be necessary for their scalability. One way of achieving it is to simply move the electron between two quantum registers. Precise control over the electron shuttling through a chain of tunnel-coupled quantum dots is possible when interdot energy detunings are changed adiabatically. Deterministic character of shuttling is however endangered by coupling of the transferred electron to thermal reservoirs: sources of fluctuations of electric fields, and lattice vibrations. We theoretically analyse how the electron transfer between two quantum dots is affected by electron-phonon scattering, and interaction with sources of $1/f$ and Johnson charge noise in both detuning and tunnel coupling. The electron-phonon scattering turns out to be irrelevant in Si quantum dots, while a competition between the effects of charge noise and Landau-Zener effect leads to an existence of optimal detuning sweep rate, at which probability of leaving the electron behind is minimal. In GaAs quantum dots, on the other hand, coupling to phonons is strong enough to make the phonon-assisted processes of interdot transfer dominate over influence of charge noise. The probability of leaving the electron behind depends then monotonically on detuning sweep rate, and values much smaller than in silicon can be obtained for slow sweeps. However, after taking into account limitations on transfer time imposed by need for preservation of electron's spin coherence, minimal probabilities of leaving the electron behind in both GaAs- and Si-based double quantum dots turn out to be of the same order of magnitude. Bringing them down below $10^{-3}$ requires temperatures $\leq \! 100$ mK and tunnel couplings above $20$ $μ$eV.
description: 22 pages, 9 figure
Neutrinos as a probe of the Universe
Creators: name: Anchordoqui, Luis A.
name: Weiler, Thomas J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Popular Physics (physics.pop-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A brief essay on how studying neutrinos can help us to better understand the Universe.
description: To be published in The Innovation Platform; https://www.innovationnewsnetwork.com/studying-neutrinos-better-understand-universe/10867/
Coincidence measurement of residues and light particles in the reaction 56Fe+p at 1 GeV per nucleon with SPALADIN
Creators: name: Gentil, E. Le
name: Aumann, T.
name: Bacri, C. O.
name: Benlliure, J.
name: Bianchin, S.
name: Böhmer, M.
name: Boudard, A.
name: Brzychczyk, J.
name: Casarejos, E.
name: Combet, M.
name: Donadille, L.
name: Ducret, J. E.
name: Fernandez-Ordoñez, M.
name: Gernhäuser, R.
name: Johansson, H.
name: Kezzar, K.
name: Kurtukian-Nieto, T.
name: Lafriakh, A.
name: Lavaud, F.
name: Fèvre, A. Le
name: Leray, S.
name: Lühning, J.
name: Lukasik, J.
name: Lynen, U.
name: Müller, W. F.
name: Pawlowski, P.
name: Pietri, S.
name: Rejmund, F.
name: Schwarz, C.
name: Sfienti, C.
name: Simon, H.
name: Trautmann, W.
name: Volant, C.
name: Yordanov, O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The spallation of $^{56}$Fe in collisions with hydrogen at 1 A GeV has been studied in inverse kinematics with the large-aperture setup SPALADIN at GSI. Coincidences of residues with low-center-of-mass kinetic energy light particles and fragments have been measured allowing the decomposition of the total reaction cross-section into the different possible de-excitation channels. Detailed information on the evolution of these de-excitation channels with excitation energy has also been obtained. The comparison of the data with predictions of several de-excitation models coupled to the INCL4 intra-nuclear cascade model shows that only GEMINI can reasonably account for the bulk of collected results, indicating that in a light system with no compression and little angular momentum, multifragmentation might not be necessary to explain the data.
description: 4 pages, 5 figures, revised version accepted in Phys. Rev. Lett
Simulating the outcome of binary neutron star merger in common envelope jets supernovae
Creators: name: Akashi, Muhammad
name: Soker, Noam
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We simulate the influence of the energy that the merger process of two neutron stars (NSs) releases inside a red supergiant (RSG) star on the RSG envelope inner to the merger location. In the triple star common envelope evolution (CEE) that we consider a tight binary system of two NSs spirals-in inside an RSG envelope and because of mass accretion and dynamical friction the two NS merge. We deposit merger-explosion energies of 3e50 and 1e51 erg at distances of 25Ro and 50Ro from the center of the RSG, and with the three-dimensional hydrodynamical code FLASH we follow the evolution of the RSG envelope in inner regions. For the parameters we explore we find that more than 90 per cent of the RSG envelope mass inner to the merger site stays bound to the RSG. NSs that experience a CEE are likely to accrete RSG envelope mass through an accretion disk that launches jets. These jets power a luminous transient event, a common envelope jets supernova (CEJSN). The merger process adds to the CEJSN energy. Our finding implies that the interaction of the merger product, a massive NS or a BH, with the envelope can continue to release more energy, both by further in-spiral and by mass accretion by the merger product. Massive RSG envelopes can force the merger product to spiral-in into the core of the RSG, leading to an even more energetic CEJSN.
description: Published in ApJ
Detection of bark beetle-attacked spruce using computer-based image analysis
Creators: name: Banner, Allen Vernon
Publisher: name: University of British Columbia
Year: 2010

description: The spruce beetle (Dendroctonus rufipennis Kirby) is the most destructive forest pest affecting mature spruce stands in British Columbia. A variety of responses to curtail the spread of bark beetle infestations exist. The responses, however, depend upon early detection of the infestations to minimize the cost of treatment and reduce losses of timber. It has been demonstrated that bark beetle-attacked spruce can be detected using visual interpretation of large scale colour infrared film (Churcher 1984; Churcher and McLean 1984; Murtha 1985; Murtha and Cozens 1985). These studies indicate that it is possible to distinguish attacked spruce, to some degree, by their visual colour in the photographs. The image intensities associated with trees in the photographs are profoundly influenced by factors such as the viewer's position and shape of the tree as well as the "colour" of the tree. This thesis develops a computer-based image analysis technique-projected intensity triplet space-which can be used to interpret the attack condition of a tree regardless of shading effects due to its position in the photograph or its shape. The procedure is used to classify trees in a test photo according to three beetle attack categories-unattacked, current attack and old attack. The interpretation accuracy for trees which were unattacked, fully current attacked and old attacked was high (84, 68 and 89 percent respectively). The percentages of trees from the 1983 strip attacked and 1983 pitched-out ground data classes interpreted by the computer to be attacked were very low (22 and 6 percent). The poor results for the strip attacked and pitched-out trees were attributed to the lack of evident colour differences from unattacked trees in the photographs. In cases where there were visually evident colour differences, however, the technique was able to classify the attack status reliably.
PHOTOS Monte Carlo and its theoretical accuracy
Creators: name: Was, Z.
name: Golonka, P.
name: Nanava, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Because of properties of QED, the bremsstrahlung corrections to decays of particles or resonances can be calculated, with a good precision, separately from other effects. Thanks to the widespread use of event records such calculations can be embodied into a separate module of Monte Carlo simulation chains, as used in High Energy Experiments of today. The PHOTOS Monte Carlo program is used for this purpose since nearly 20 years now. In the following talk let us review the main ideas and constraints which shaped the program version of today and enabled it widespread use. Finally, we will underline importance of aspects related to reliability of program results: event record contents and implementation of channel specific matrix elements.
description: Presented by Z. Was, April 08 2008, International Workshop on e+e- collisions from Phi to Psi
Comparison of Methods in Soil Particle Size Analysis by Sedimentation
Creators: name: Fapailin Chaiwan
name: Nattanicha Pompukdee
name: Kanita Ueangsawat
Publisher: name: Faculty of Agriculture
Year: 2019
Subjects: hydrometer method, pipette method, sieving method, soil particles

description: Khon Kaen Agriculture Journal, 47, 3, 519-526
LINC00998 functions as a novel tumor suppressor in acute myeloid leukemia via regulating the ZFP36 ring finger protein/mammalian target of rapamycin complex 2 axis
Creators: name: Fang, Ximin
name: Pan, Xiazhen
name: Mai, Huirong
name: Yuan, Xiuli
name: Liu, Sixi
name: Wen, Feiqiu
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Acute myeloid leukemia (AML) is a severe hematologic malignancy that threatens human health. Long non-coding RNA (lncRNA) is emerged as a key player in human cancer. Herein, we explored the role of LINC00998 in human AML. LINC00998 was significantly decreased in human AML, which was linked to relapse and poor prognosis. Stable overexpression of LINC00998 inhibited AML cell viability, colony ability, DNA synthesis rate and increased apoptosis. LINC00998 was mainly located in the cytoplasm, in which interacted with ZFP36 ring finger protein (ZFP36), a mRNA destabilizing factor, resulting in increased decay of mammalian target of rapamycin complex 2 (mTORC2), a well-known proto-oncogene in AML. Overexpression of mTORC2 partly blocked the tumor suppressive effects of LINC00998. Importantly, LINC00998 shortened in vivo AML cell survival in xenograft tumor model. Taken together, we found that LINC00998 is a novel tumor-inhibiting lncRNA in human AML. The dysregulation of LINC00998/ZFP36/mTORC2 axis is linked to leukemogenesis and progression.
A 3d disordered superconformal fixed point
Creators: name: Chang, Chi-Ming
name: Colin-Ellerin, Sean
name: Peng, Cheng
name: Rangamani, Mukund
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We initiate the study of a three dimensional disordered supersymmetric field theory. Specifically, we consider a $\mathcal{N}=2$ large $N$ Wess-Zumino like model with cubic superpotential involving couplings drawn from a Gaussian random ensemble. Taking inspiration from analyses of lower dimensional SYK like models we demonstrate that the theory flows to a strongly coupled superconformal fixed point in the infra-red. In particular, we obtain leading large $N$ spectral data and operator product coefficients at the critical point. Moreover, the analytic control accorded by the model allows us to compare our results against those derived in the conformal bootstrap program and demonstrate consistency with general expectations.
description: 58 pages, 4 figures. v2: minor improvements
Flagellar length control in multiflagellated eukaryotes: a case study with Giardia
Creators: name: Patra, Swayamshree
name: Chowdhury, Debashish
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Every organism has a size that is convenient for its function. Not only multicellular organisms but also uni-cellular organisms and even subcellular structures have convenient sizes. Flagella of eukaryotic cells are long dynamic cell protrusions. Because of their simple linear geometry, these cell appendages have been popular system for experimental investigation of the mechanisms of size control of organelles of eukaryotic cells. In the past most of the attention have been focussed on mono-flagellates and bi-flagellates. By extending our earlier model of bi-flagellates, here we develop a theoretical model for flagellar length control in {\it Giardia} which is an octo-flagellate. It has four pairs of flagella of four different lengths. Analyzing our model we predict the different sizes of the four pairs of flagella . This analysis not only provide insight into the physical origins of the different lengths but the predicted lengths are also consistent with the experimental data.
description: Final version; Accepted for Publication in "Indian Journal of Physics", a pioneering journal founded by Sir C.V. Raman in 1926
Inferring magnetic helicity spectrum in spherical domains: the method and example applications
Creators: name: Prabhu, A. P.
name: Singh, N. K.
name: Käpylä, M. J.
name: Lagg, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Obtaining observational constraints on the role of turbulent effects for the solar dynamo is a difficult, yet crucial, task. Without such knowledge, the full picture of the operation mechanism of the solar dynamo cannot be formed. The magnetic helicity spectrum provides important information about the $α$ effect. Here we demonstrate a formalism in spherical geometry to infer magnetic helicity spectra directly from observations of the magnetic field, taking into account the sign change of magnetic helicity across the Sun's equator. Using an angular correlation function of the magnetic field, we develop a method to infer spectra for magnetic energy and helicity. The retrieval of the latter relies on a fundamental definition of helicity in terms of linkage of magnetic flux. We apply the two-scale approach, previously used in Cartesian geometry, to spherical geometry for systems where a sign reversal of helicity is expected across the equator at both small and large scales. We test the method by applying it to an analytical model of a fully helical field, and to magneto-hydrodynamic simulations of a turbulent dynamo. The helicity spectra computed from the vector potential available in the models are in excellent agreement to the spectra computed solely from the magnetic field using our method. In a next test, we use our method to obtain the helicity spectrum from a synoptic magnetic field map corresponding to a Carrington rotation. We observe clear signs of a bihelical spectrum of magnetic helicity. Our formalism makes it possible to infer magnetic helicity in spherical geometry, without the necessity of computing the magnetic vector potential. This has the advantage of being gauge invariant. It has many applications in solar and stellar observations, but can also be used to analyze global magnetoconvection models of stars and compare them with observations.
description: 10 pages, 6 figures, 3 appendices, submitted to Astronomy and Astrophysics