cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Swift GRB Afterglows and the Forward-Shock Model
Creators: name: Panaitescu, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The X-ray light-curves of the GRB afterglows monitored by Swift display one to four phases of power-law decay. In chronological order they are: the burst tail, the "hump", the standard decay, and the post jet-break decay. The large-angle emission produced during the burst, but arriving at observer later, is consistent with the GRB tail decay for less than half of bursts. The forward-shock synchrotron emission from a very narrow jet (half-angle less than 1 deg) is consistent with the decay of 75 percent of GRB tails. The forward-shock inverse-Compton emission from a narrow jet that does not expand sideways also accommodates the decay of 80 percent of GRB tails. The X-ray light-curve hump can be attributed to an increasing kinetic energy per solid angle of the forward-shock region visible to the observer. This increase could be due to the emergence of the emission from an outflow seen from a location outside its opening. However, the correlations among the hump timing, flux, and decay index expected in this model are not confirmed by observations. Thus, the increase in the forward-shock kinetic energy is more likely caused by some incoming ejecta arriving at the shock during the afterglow phase. The jet interpretation for the burst tails and the energy injection scenario for the hump lead to a double-jet outflow structure consisting of a narrow GRB jet which precedes a wider afterglow outflow of lower kinetic energy per solid angle but higher total energy. (X-ray light-curves are shown for GRB 050416A, 050525A, 050717, 050721, 050724, 050730, 050802, 051109A, 060124, 060206, 060526).
description: accepted by MNRAS, 14 pages, 14 figures, additions: inverse-Compton emission for GRB tails (S2,fig3), implications for GRB efficiency (S3.1.3), achromatic breaks at ~1 hour (S4,fig10), GRB 060206 (S6,fig14)
Convegno annuale dell’Associazione Italiana di Cartografia. Dal portulanus alla cartografia digitale. Nuovi itinerari euristici per la governance dei territori (Rovereto, 27-29 settembre 2023)
Creators: name: Novella, Luca
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2023

description: Semestrale di studi e ricerche di geografia, N. 2 (2023)
Πειραματικοί σχεδιασμοί και γραφήματα
Creators: name: Καραγιάννης, Βασίλης Δ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: D-Βέλτιστοι σχεδιασμοί
Εκτιμητική τάξη ΙΙΙ
Κορεσμένοι σχεδιασμοί
Ανάλυση με αυτιά
D-Optimal designs
Resolution III
Saturated designs
Ear decomposition

description: Η παρούσα διατριβή αποτελεί μια μελέτη επάνω στην κατασκευή πειραματικών σχεδιασμών(τον πρώτο από τους τρεις στόχους της επιστήμης της Στατιστικής, R.A. Fisher). Συγκεκριμένα μελετώνται οι D-βέλτιστοι σχεδιασμοί S1XS2XS2 παραγοντικοί σχεδιασμοί εκτιμητική, τάξης ΙΙΙ, δηλ. σχέδια πειραμάτων στα οποία υπεισέρχονται τρεις παράγοντες με οποιοδήποτε πλήθος σταθμών και τα οποία έχουν ως στόχο την εκτίμηση των κυρίων επιδράσεων των σταθμών των παραγόντων ελαχιστοποιώντας τη γενικευμένη διασπορά και χρησιμοποιώντας το ελάχιστο πλήθος πειραματικών μονάδων. Παρουσιάζονται και αποδεικνύονται αρκετές ιδιότητες των σχεδιασμών αυτών. Αποδεικνύεται η τιμή του άνω φράγματος της ορίζουσας του πίνακα πληροφορίας για τις περιπτώσεις 3xS2XS3, S3>_S2+1, S2>_3 και 3XS(2) για κάθε S>_3, ενώ στη συνέχεια κατασκευάζονται με τη μέθοδο της σύνθεσης με περιττά μονοπάτια, τα γραφήματα που πετυχαίνουν τα προηγούμενα άνω φράγματα και τα οποία δίνουν και τις αγωγές που χρησιμοποιούνται στην εκτέλεση των βέλτιστων πειραμάτων
description: This dissertation presents a research on the construction of experimental designs, which is the first of the three objects of Statistics (according to R.A. Fisher, while the other two are Descriptive Statistics and Statistical Inference). In particular it is a study on the saturated D-optimal, s1 X s2 X s3 factorial plans of resolution III, i.e. designs of experiments on three factors with any number of levels in each factor, that estimate the main e®ects of the levels of the factors using the criterion of the minimization of the generalized variance and the minimal number of experimental units. Some properties of these designs are demonstrated, for any value of the parameters s1>_ s2>_s3. The upper bound of the value of the determinant of the information matrix for the 3XsXs3 plan where s3 >_ s2+1>_ s2 >_ 3 and the 3Xs2 plan, where s >_ 3, is achieved and then some graph for which the determinant of the adjacency matrix attains the corresponding upper bound is constructed by the method of the ear construction. Finally the level combinations (treatments) of the factors for each one of the above optimal plans are given by the use of some appropriate labeled graph. The entire study where based on Combinatorial and Graph Theory methods (methods from the field of Discrete Mathematics), while it is worthy to mention that the computation of the value of the determinant of any matrix was done merely by additions and subtractions
A complete sample of twelve very X-ray luminous galaxy clusters at z>0.5
Creators: name: Ebeling, H.
name: Barrett, E.
name: Donovan, D.
name: Ma, C. -J.
name: Edge, A. C.
name: van Speybroeck, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the statistically complete and cosmologically most relevant subset of the twelve most distant galaxy clusters detected at z>0.5 by the MAssive Cluster Survey (MACS). Ten of these systems are new discoveries; only two (MACSJ0018.5+1626 aka CL0016+1609, and MACSJ0454.1-0300 aka MS0451.6-0305) were previously known. We provide fundamental cluster properties derived from our optical and X-ray follow-up observations as well as the selection function in tabulated form to facilitate cosmological studies using this sample.
description: Four pages, 1 figure, submitted to ApJ
Hereditary Coproporphyria Associated with the Q306X Mutation in the Coproporphyrin Oxidase Gene Presenting with Acute Ataxia
Creators: name: Jiménez-Jiménez, Félix Javier
name: Agúndez, José AG
name: Martínez, Carmen
name: Navacerrada, Francisco
name: Plaza-Nieto, José Francisco
name: Pilo-De-La-Fuente, Belén
name: Alonso-Navarro, Hortensia
name: García-Martín, Elena
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2013

description: Background: Hereditary coproporphyria (HCPO) is a low‐penetrance, autosomal dominant, acute hepatic porphyria characterized by the overproduction and excretion of coproporphyrin. The most common neurological manifestations of this entity include peripheral, predominantly motor dysfunction, and central nervous system dysfunction. Ataxia associated with HCPO has not been reported previously. The aim of this article is to report a patient with HCPO presenting with acute ataxia. Case Report: We describe a 44‐year‐old patient presenting clinically with acute ataxia who was diagnosed with HCPO; mutations were analyzed in the coproporphyrin‐oxidase III (CPOX) gene in the patient and in six asymptomatic first‐degree relatives. Discussion: The patient was heterozygous for a mutation causing the amino acid exchange Q306X in the CPOX gene. No relatives carried the same or another mutation in the CPOX gene. HCPO should be considered in the differential diagnosis for patients presenting with ataxia.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Optimizing WIMP directional detectors
Creators: name: Green, Anne M.
name: Morgan, Ben
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the dependence of the exposure required to directly detect a WIMP directional recoil signal on the capabilities of a directional detector. Specifically we consider variations in the nuclear recoil energy threshold, the background rate, whether the detector measures the recoil momentum vector in 2 or 3 dimensions and whether or not the sense of the momentum vector can be determined. We find that the property with the biggest effect on the required exposure is the measurement of the momentum vector sense. If the detector cannot determine the recoil sense, the exposure required is increased by an order of magnitude for 3-d read-out and two orders of magnitude for 2-d read-out. For 2-d read-out the required exposure, in particular if the senses can not be measured, can be significantly reduced by analyzing the reduced angles with the, time dependent, projected direction of solar motion subtracted. The background rate effectively places a lower limit on the WIMP cross-section to which the detector is sensitive; it will be very difficult to detect WIMPs with a signal rate more than an order of magnitude below the background rate. Lowering the energy threshold also reduces the required exposure, but only for thresholds above 20 keV.
description: 18 pages, 7 figures, version to appear in Astroparticle Physics with minor changes
The formal shift operator on the Yangian double
Creators: name: Wendlandt, Curtis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37 (Primary) 17B67, 81R10 (Secondary)

description: Let $\mathfrak{g}$ be a symmetrizable Kac-Moody algebra with associated Yangian $Y_\hbar\mathfrak{g}$ and Yangian double $\mathrm{D}Y_\hbar\mathfrak{g}$. An elementary result of fundamental importance to the theory of Yangians is that, for each $c\in \mathbb{C}$, there is an automorphism $τ_c$ of $Y_\hbar\mathfrak{g}$ corresponding to the translation $t\mapsto t+c$ of the complex plane. Replacing $c$ by a formal parameter $z$ yields the so-called formal shift homomorphism $τ_z$ from $Y_\hbar\mathfrak{g}$ to the polynomial algebra $Y_\hbar\mathfrak{g}[z]$. We prove that $τ_z$ uniquely extends to an algebra homomorphism $Φ_z$ from the Yangian double $\mathrm{D}Y_\hbar\mathfrak{g}$ into the $\hbar$-adic closure of the algebra of Laurent series in $z^{-1}$ with coefficients in the Yangian $Y_\hbar\mathfrak{g}$. This induces, via evaluation at any point $c\in \mathbb{C}^\times$, a homomorphism from $\mathrm{D}Y_\hbar\mathfrak{g}$ into the completion of the Yangian with respect to its grading. We show that each such homomorphism gives rise to an isomorphism between completions of $\mathrm{D}Y_\hbar\mathfrak{g}$ and $Y_\hbar\mathfrak{g}$ and, as a corollary, we find that the Yangian $Y_\hbar\mathfrak{g}$ can be realized as a degeneration of the Yangian double $\mathrm{D}Y_\hbar\mathfrak{g}$. Using these results, we obtain a Poincaré-Birkhoff-Witt theorem for $\mathrm{D}Y_\hbar\mathfrak{g}$ applicable when $\mathfrak{g}$ is of finite type or of simply-laced affine type.
description: 40 pages
Phonon Screening of Excitons in Semiconductors: Halide Perovskites and Beyond
Creators: name: Filip, Marina R.
name: Haber, Jonah B.
name: Neaton, Jeffrey B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The ab initio Bethe-Salpeter equation (BSE) approach, an established method for the study of excitons in materials, is typically solved in a limit where only static screening from electrons is captured. Here, we generalize this framework to also include dynamical screening from phonons at lowest order in the electron-phonon interaction. We apply this generalized BSE approach to a series of inorganic lead halide perovskites, CsPbX3, with X = Cl, Br, and I. We find that inclusion of screening from phonons significantly reduces the computed exciton binding energies of these systems. By deriving a simple expression for phonon screening effects, we reveal general trends for the importance of phonon screening effects in semiconductors and insulators, based on a hydrogenic exciton model. We demonstrate that the magnitude of the phonon screening correction in isotropic materials can be reliably predicted using four material specific parameters: the reduced effective mass, the static and optical dielectric constants, and the phonon frequency of the most strongly coupled LO phonon mode. This framework helps to elucidate the importance of phonon screening and its relation to excitonic properties in a broad class of semiconductors.
Restless “lower back” in a patient with Parkinson’s disease
Creators: name: Suzuki, Keisuke
name: Miyamoto, Masayuki
name: Miyamoto, Tomoyuki
name: Hirata, Koichi
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2013

description: Background: In restless legs syndrome (RLS), the isolated involvement of other body parts in the absence of leg involvement is rare. Case report: We report an 82‐year‐old male with a 1‐year history of Parkinson’s disease (PD) who developed an abnormal sensation limited to his “lower back.” He fulfilled the four essential RLS criteria, with the major caveat that the criteria were applied in a modified manner to his lower back rather than his legs. The administration of a dopamine agonist completely eliminated his symptoms. Discussion: Our patient’s “restless lower back” may be a variant of RLS. Clinicians should pay attention to restlessness in other body parts in addition to the legs.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
A Novel Presentation of an Ocular Geste Antagoniste in Cervical Dystonia: A Case Report
Creators: name: Boyd, James T
name: Fries, Timothy J
name: Nagle, Keith J
name: Hamill, Robert W.
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2013

description: Background: A geste antagoniste or sensory trick is a well described phenomenon associated with primary cervical dystonia. Craniocervical tactile stimulation or stereotyped limb movements allow patients to transiently ameliorate dystonic activation of cervical musculature. Case Report: We report a patient with primary cervical dystonia who presented with a novel “ocular” geste antagoniste. Through a sensory trick of tonic left eye deviation, the patient transiently reduces cervical dystonic activity (improved range of motion and reduced dystonic tremor). Multi‐channel surface electromyography and video are used to illustrate these findings. Discussion: This case presents a unique clinical observation of specific voluntary eye movements attenuating cervical dystonia. The phenomenon is phenotypically consistent with previously described limb sensorimotor tricks.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
A Lensing Survey of X-ray Luminous Galaxy Clusters at Redshift z ~ 0.2: II: CFH12k Weak Lensing Analysis and Global Correlations
Creators: name: Bardeau, S.
name: Soucail, G.
name: Kneib, J. P.
name: Czoske, O.
name: Ebeling, H.
name: Hudelot, P.
name: Smail, I.
name: Smith, G. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: We present a wide-field multi-color survey of a homogeneous sample of eleven clusters of galaxies for which we measure total masses and mass distributions from weak lensing. Methods: The eleven clusters in our sample are all X-ray luminous and span a narrow redshift range at z=0.21 +/- 0.04. The weak lensing analysis of the sample is based on ground-based wide-field imaging obtained with the CFH12k camera on CFHT. We use the methodology developed and applied previously on the massive cluster Abell 1689. A Bayesian method, implemented in the Im2shape software, is used to fit the shape parameters of the faint background galaxies and to correct for PSF smearing. With the present data, shear profiles are measured in all clusters out to at least 2 Mpc (more than 15arcmin from the center) with high confidence. The radial shear profiles are fitted with different parametric mass profiles and the virial mass M_200 is estimated for each cluster and then compared to other physical properties. Results: Scaling relations between mass and optical luminosity indicate an increase of the M/L ratio with luminosity and a L_X-M_200 relation scaling as L_X \propto M_200^(0.83 +/- 0.11) while the normalization of the M_200 \propto T_X^{3/2} relation is close to the one expected from hydrodynamical simulations of cluster formation as well as previous X-ray analyses. We suggest that the dispersion in the M_200-T_X and M_200-L_X relations reflects the different merging and dynamical histories for clusters of similar X-ray luminosities and intrinsic variations in their measured masses. Improved statistics of clusters over a wider mass range are required for a better control of the intrinsic scatter in scaling relations.
description: 20 pages, 11 figures, revised version now accepted to Astronomy and Astrophysics. Full version with high resolution figures at http://www.ast.obs-mip.fr/users/soucail/highlx.pdf
Bicycle policies and programmes in Vancouver, B.C. and Seattle, Washington : a comparison
Creators: name: Rye, Tom
Publisher: name: University of British Columbia
Year: 2011

description: This thesis compares the evolution of the policies and programmes for bicycle planning which have developed in Vancouver, B.C., and Seattle, Washington since 1970. The bicycle policies of the two City governments are reviewed, as are the outcomes of these policies in terms of programme activities. The activities of other organisations, both voluntary and governmental, are also considered in the broad review of bicycle-related activities in the two cities. The bicycle policies and programmes of both are compared to models developed from the literature. The reasons for the differing development of bicycle policies and programmes in the two cities are examined from an historical perspective. It is concluded that the development and implementation of a bicycle policy faces similar problems to that of any other policy that is at the margin of political acceptability. It is argued that bicycle policies will be implemented much more readily if there is an active well-organised cyclists' lobby; if there is a bicycle coordinator employed by the municipality; and if cyclists can link their cause to one with broader political support (in this case, open space).
Το θρησκευτικό στοιχείο στους Ολυμπιακούς Αγώνες κατά την αρχαιότητα
Creators: name: Πλακωτή, Ελένη Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Θρησκεία
Μύθοι
Religion
Myths

description: Εχοντας ως βάση τις αρχαίες πηγές, τη σύγχρονη βιβλιογραφία και την αρχαιολογική έρευνα, η παρούσα διατριβή, αναδεικνύει ότι : οι αγώνες της αρχαίας Ολυμπίας αποτελούσαν εξέλιξη θρησκευτικών τελετουργιών προς τιμή κάποιων θεοτήτων. Ο νικητής ήταν αφιερωμένος στο Θεό και συμμετείχε στη θεϊκή δόξα. Ωστόσο, στο παρελθόν, οι αγώνες σχετίζονταν με τελετές ενηλικίωσης των νέων αγοριών και κοριτσιών, τις λεγόμενες "τελετές μετάβασης" ή "διαβατήριες τελετές" που είχαν καθαρά μυητικό χαρακτήρα
description: The present thesis is dealing with the relation between Greek religion and the ancient Olympic Games. The rituals of the games were connected at first with the worship of some very ancient gods and goddesses. There has been found that some rites are the same with those in "rites of passage". These were special rites that helped young boys and girls to obtain their new role as hunters and mothers, as adults. These rites are basic element of rituals in the ancient Olympic Games. Especially the "Epinikian odes" helped the winner to be accepted by his home town as a new man. A new man, who, with his win, came closer to the Gods. his victory and he himself were devoted to the Gods, and now on he became somehow holy and immortal
Unveiling short period binaries in the inner VVV bulge
Creators: name: Botan, E.
name: Saito, R. K.
name: Minniti, D.
name: Kanaan, A.
name: Ramos, R. Contreras
name: Ferreira, T. S.
name: Gramajo, L. V.
name: Navarro, M. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Most of our knowledge about the structure of the Milky Way has come from the study of variable stars. Among the variables, mimicking the periodic variation of pulsating stars, are the eclipsing binaries. These stars are important in astrophysics because they allow us to directly measure radii and masses of the components, as well as the distance to the system, thus being useful in studies of Galactic structure alongside pulsating RR Lyrae and Cepheids. Using the distinguishing features of their light curves, one can identify them using a semi-automated process. In this work, we present a strategy to search for eclipsing variables in the inner VVV bulge across an area of 13.4 sq. deg. within $1.68^{\rm o}
description: 14 pages. 12 figures. 3 tables. Accepted for publication in MNRAS
title: Rapport de voyage, Ile de France (1926) : Immobilisation et retour de New York, 1939, voyage n°40
Creators: name: Arnold, J.
name: Fontaine, Albert
name: Gendronneau, Gabriel
name: Raulin, Roger A.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023
Subjects: subject: Compagnie Générale Transatlantique
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapport du commandant - Rapport du commissaire - Rapport du second - Rapport de l'officier de sécurité - Rapport du médecin - Rapport contentieux
description: Source: French Lines & Compagnies, 1997 004 5068-27
description: Coverage: 1939-09-02/1940-05-10
Levodopa Responsiveness in Adult‐onset Lower Limb Dystonia is Associated with the Development of Parkinson’s Disease
Creators: name: Chang, Florence C. F.
name: Josephs, Keith A.
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2013

description: Background: Adult‐onset primary lower limb dystonia (AOPLLD) has been reported as an early sign of Parkinson’s disease (PD) or Parkinson‐plus syndrome in case series. No prior systematic analysis has assessed clinical clues predicting later development of PD or Parkinson‐plus syndrome. Methods: We identified patients with AOPLLD from medical records. We excluded patients who had not been diagnosed by a neurologist, and who had a pre‐existing diagnosis of PD, psychogenic, or secondary dystonia. Records were subdivided into those who later developed PD or Parkinson‐plus disorders and those who did not. The following clinical characteristics were compared between the two groups: dystonia onset age, type of dystonia, levodopa response, anticholinergic response, and family history of Parkinsonism or tremor. Results: Twenty‐two AOPLLD patients were identified: 77% female; the median dystonia onset age was 53 years. Eight (37%) developed Parkinson’s disease; 2 (9%) developed corticobasal syndrome. Twelve patients (54%) did not develop Parkinsonism after a median follow‐up period of 1.5 years. There was a significant difference in leg dystonia levodopa response between the two groups (p = 0.02). Conclusion: In patients with AOPLLD, leg dystonia with levodopa response is associated with the future development of PD.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Insights from ARPES for an undoped, four-layered, two-gap high-T_c superconductor
Creators: name: Xie, Wenhui
name: Jepsen, O.
name: Andersen, O. K.
name: Chen, Yulin
name: Shen, Z. -X.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: An undoped cuprate with apical fluorine and inner (i) and outer (o) CuO2-layers is a 60 K superconductor whose Fermi surface (FS) has large n- and p-doped sheets with the SC gap on the n-sheet twice that on the p -sheet (Y. Chen et al.). The Fermi surface is not reproduced by the LDA, but the screening must be substantially reduced due to electronic correlations, and oxygen in the o-layers must be allowed to dimple outwards. This charges the i-layers by 0.01|e|, causes an 0.4 eV Madelung-potential difference between the i and o -layers, quenches the i-o hopping, and localizes the n-sheets onto the i-layers, thus protecting their d-wave pairs from being broken by scattering on impurities in the BaF layers. The correlation-reduced screening strengthens the coupling to z-axis phonons.
description: 4 pages, 3 figures
A search for stellar X-ray sourcesin the Sagittarius and Carina dwarf galaxies - I: X-ray observations
Creators: name: Ramsay, G.
name: Wu, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: ROSAT observations found no convincing evidence for X-ray sources located in local dwarf spheroidal galaxies (dSph). Now with more sensitive instruments on board Chandra and XMM-Newton we can reach fainter luminosity levels. We report on an observation of the Sagittarius (Sgr) dSph made using Chandra and an observation of the Carina (Car) dSph made using XMM-Newton. Our observations are sensitive to sources with X-ray luminosities in the 0.1-10 keV band of \~1x10^{32 ergs/s and 3x10^34 ergs/s for the Sgr and Car fields respectively. We have identified a total of 80 sources in the Sgr field and 53 sources in the Car field. Although the source numbers are roughly consistent with the expected number of background AGN, we found a small fraction of X-ray sources which were soft and could be located in the host dSph. Follow-up optical/IR observations may help to identify their optical counterparts and hence determine their nature.
description: Accepted for publication in A&A
A Rigorous Finite-Element Domain Decomposition Method for Electromagnetic Near Field Simulations
Creators: name: Zschiedrich, L.
name: Burger, S.
name: Schädle, A.
name: Schmidt, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Rigorous computer simulations of propagating electromagnetic fields have become an important tool for optical metrology and design of nanostructured optical components. A vectorial finite element method (FEM) is a good choice for an accurate modeling of complicated geometrical features. However, from a numerical point of view solving the arising system of linear equations is very demanding even for medium sized 3D domains. In numerics, a domain decomposition method is a commonly used strategy to overcome this problem. Within this approach the overall computational domain is split up into smaller domains and interface conditions are used to assure continuity of the electromagnetic field. Unfortunately, standard implementations of the domain decomposition method as developed for electrostatic problems are not appropriate for wave propagation problems. In an earlier paper we therefore proposed a domain decomposition method adapted to electromagnetic field wave propagation problems. In this paper we apply this method to 3D mask simulation.
description: 9 pages, 7 figures, SPIE conference Advanced Lithography / Optical Microlithography XXI (2008)
Quantum Monte Carlo Impurity Solver for Cluster DMFT and Electronic Structure Calculations in Adjustable Base
Creators: name: Haule, Kristjan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We generalized the recently introduced new impurity solver based on the diagrammatic expansion around the atomic limit and Quantum Monte Carlo summation of the diagrams. We present generalization to the cluster of impurities, which is at the heart of the cluster Dynamical Mean-Field methods, and to realistic multiplet structure of a correlated atom, which will allow a high precision study of actinide and lanthanide based compounds with the combination of the Dynamical Mean-Field theory and band structure methods. The approach is applied to both, the two dimensional Hubbard and t-J model within Cellular Dynamical Mean Field method. The efficient implementation of the new algorithm, which we describe in detail, allows us to study coherence of the system at low temperature from the underdoped to overdoped regime. We show that the point of maximal superconducting transition temperature coincides with the point of maximum scattering rate although this optimal doped point appears at different electron densities in the two models. The power of the method is further demonstrated on the example of the Kondo volume collapse transition in Cerium. The valence histogram of the DMFT solution is presented showing the importance of the multiplet splitting of the atomic states.
description: 12 pages, 4 figures
Slowed Saccades and Increased Square Wave Jerks in Essential Tremor
Creators: name: Gitchel, George T
name: Wetzel, Paul A
name: Baron, Mark S
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2013

description: Background: Eye movements in essential tremor (ET) are poorly described and may present useful information on the underlying pathophysiology of the disorder. Methods: Sixty patients with ET, including 15 de novo untreated patients, and 60 age-matched controls constitute the study population. A video-based eye tracker was used to assess binocular eye position. Oculomotor function was assessed while subjects followed random horizontally and vertically step-displaced targets. Results: For all reflexive saccades, latencies were increased in ET subjects by a mean of 16.3% (p<0.01). Saccades showed reduced peak velocities with a lengthy, wavering velocity plateau, followed by slowed decelerations. For larger 30°+ saccades, peak velocities were decreased by a mean of 25.2% (p<0.01) and durations increased by 31.8% (p<0.01). The frequency of square wave jerks (SWJs) in patients was more than triple that of controls (p<0.0001). Despite frequent interruptions by SWJs, fixations were otherwise stable and indistinguishable from controls (root mean square [RMS] velocity, p = 0.324). The abnormal eye movement parameters were independent of disease duration, tremor severity, and medication therapy. Discussion: In contrast to normally swift onset and efficient acceleration/deceleration movements, saccades in ET are characterized by abnormally prolonged latencies and slowed velocity profiles. Although ET subjects maintain highly stable fixations, they are interrupted by increased numbers of SWJs. This study reveals novel oculomotor deficits in ET, which are distinct from the eye movement dysfunction of other movement disorders, supporting a role for eye tracking to assist in the differential diagnoses of not only atypical, but also more common movement disorders.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Deformation of Batalin-Vilkovisky Structures
Creators: name: Ikeda, Noriaki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Symplectic Geometry (math.SG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A Batalin-Vilkovisky formalism is most general framework to construct consistent quantum field theories. Its mathematical structure is called {\it a Batalin-Vilkovisky structure}. First we explain rather mathematical setting of a Batalin-Vilkovisky formalism. Next, we consider deformation theory of a Batalin-Vilkovisky structure. Especially, we consider deformation of topological sigma models in any dimension, which is closely related to deformation theories in mathematics, including deformation from commutative geometry to noncommutative geometry. We obtain a series of new nontrivial topological sigma models and we find these models have the Batalin-Vilkovisky structures based on a series of new algebroids.
description: references added
Indole alkaloids from the bark of Acacia confusa and their potential antinociceptive and anti-inflammatory activities
Creators: name: Wang, Yang
name: Ma, Shuang-Gang
name: Li, Li
name: Yu, Shi-Shan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology

description: A pair of novel trimeric indole alkaloid enantiomers [(±)-8], five new bisindole alkaloids [4–7 and (±)-9], and three pairs of new monomeric indole alkaloid enantiomers [(±)-1–(±)-3], together with seven known alkaloids (10–16), were isolated from the bark of Acacia confusa. Their structures were determined on the basis of spectroscopic methods, especially by NMR data analyses combined with single-crystal X-ray diffraction and electronic circular dichroism analyses. Compounds 4 and 11–16 exhibited significant antinociceptive activities in an acetic acid-induced writhing test. Compounds (+)-9 and (−)-9 displayed anti-inflammatory activities through the inhibition of the NF-κB pathway, with inhibitory rates of 68.9% and 59.5%, respectively, at a concentration of 10 µM.
Διαδικασία αλληλοαναίρεσης δύο νιουτραλίνο με αντίστοιχη παραγωγή ενός φωτονίου και ενός σωματιδίου Ζ
Creators: name: Διακονίδης, Θεόδωρος Δ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Φαινομενολογία
Υπερσυμμετρία
Σκοτεινή ύλη
Νιουτραλίνο
Phenomenology
Supersymmetry
Dark matter
Neutralino

description: Στο πρώτο μέρος επιτυγχάνεται στη μελέτη αυτή, ο υπολογισμός ενός βρόχου της διαδικασίας xixj→γz για οποιοδήποτε ενέργεια του ζεύγους νιοντραλίνο του ελάχιστου υπερσυμμετρικού μοντέλου(MSSM). Ως εφαρμογή κατάλληλη για την αναζήτηση της σκοτεινής ύλης(Dark matter) γίνεται μελέτη της νιουτραλίνο νιουτραλίνο αλληλοαναίρεσης στην οριακή περίπτωση που η σχετική τους ταχύτητα τείνει στο μηδέν, περιγράφοντας την παρούσα κατανομή της σκοτεινής ύλης στην γαλαξιακή άλω, καθώς επίσης και για σχετική ταχύτητα 0.5. Παρουσιάζονται αποτελέσματα για 6 διαφορετικά MSSM πρότυπα, περιγράφοντας της διάφορες πιθανές ιδιότητες των νιουτραλίνο. Γίνονται συγκρίσεις με προηγούμενες εργασίες. Η πιο χρήσιμη περίπτωση είναι αυτή της αλληλοαναίρεσης ταυτόσημων νιουτραλίνο αλλά και οι άλλες περιπτώσεις μπορούν να φανούν χρήσιμες σε ειδικές καταστάσεις. Στο δεύτερο μέρος παρουσιάζεται ο κώδικας gangamZZ, ο οποίος υπολογίζει όλα τα πιθανά αποτελέσματα που σχετίζονται με τη διαδικασία γγ→ΖΖ τόσο για το καθιερωμένο μοντέλο όσο και για το MSSM. Διάφορα παραδείγματα μοντέλων εξετάζονται και γίνονται συγκρίσεις μεταξύ αυτών.
description: On the first part;the one loop computation of the process xixj→γz has been performed at an arbitrary c.m. energy for any pair of MSSM neutralinos. As an application suitable for Dark matter searches; the neutralino-neutralino annihilation is studied at the limiting case of vanishing relative velocity, describing the present DM distribution in the galactic halo; and at a relative velocity of about 0.5., determining the neutralino relic density contribution. The most useful situation is obviously for ι=j=1 but the case of non-identical neutralinos may also be useful in some corners of the parameter space. Our results are contained in the FORTRAN code PLATONdmZ, applying to any set of real MSSM parameters. Numerical results are also presented for a sample of 6 MSSM models; describing the various possible neutralino properties. A comparison with other existing works is also made. On the second part, the code, gamgamZZ is presented, which may be used to calculate all possible observations related to the process γγ→ΖΖ, in either the Standard Model(SM), or the Minimal Supersnumetric Standard Model(MSSM) with real parametrs
Models of CJ Deflagrations and Their Transition to Detonations from the Interaction of a Detonation Wave with a Perforated Plate
Creators: name: Wang, Wentian
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: DDT
Shock-induced Ignition

description: The last stage of a deflagration-to-detonation transition (DDT) process involves the propagation and acceleration of a fast flame. This process is currently poorly understood. The difficulties lie in its complex structure, which is turbulent and involves multi-dimensional gasdynamic phenomena. Previous experimental studies have established these fast flames from the interaction of a detonation wave with a row of obstacles or porous plate. Two main questions remain unsolved: 1) What is the propagation speed of the fast flame obtained in these configurations and 2), Which factors dominate the occurrence of the DDT phenomenon? To answer these questions, two models have been constructed in the present work. Firstly, a quasi-1D gasdynamic model is proposed for estimating the transmitted reaction front speed and the strength of the transmitted shock. By alternately assuming a Chapman-Jouguet (CJ) deflagration or an inert shock, the model estimated the transmitted shock speeds. The comparison with extensive experimental data for a range of hydrocarbon fast flames revealed that the burning velocity required for transition to detonation was the CJ value. Secondly, a numerical shock-induced ignition model, which can impose mechanical fluctuations from a driven piston, was established in order to investigate the ignition and acceleration process, thereby clarifying the other question of interest. The results from the simulations indicated that the mechanical fluctuations can play an important role in triggering DDT by means of promoting the local ignition and amplification of the reaction front stemming from such ignition. It was also found that the maximum amplification effects occur with a fluctuation period between the non-fluctuated ignition delay and the time scale of chemical energy deposition. The inert simulation results show that two types of gasdynamic effects from the fluctuations were vital to the hot-spot formation. These hot spots make significant contribution to the detonation initiation.
Techniques in Allowing Multi-Show in Digital Credentials
Creators: name: Fan, Jinnan
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Digital credentials
Malleable signatures
Privacy technology
PKI
Multi-show
Selective show
Cryptography

description: Cryptographic credential systems provide some possible solutions to the problem of privacy leakage of users in the ``virtual'' world. This thesis presents a privacy-preserving method which can enable the cryptographic credentials to have the capability of anonymous multi-show. Our approach builds on the work of Brands from the year 2000 which proposed a Digital Credential system that can protect users' privacy. This system is efficient but not perfect, since the Digital Credentials in that system can only be shown once to avoid linkability. We propose the use of a malleable signature technique to transform Brands' Digital Credentials from single-show to multi-show capability. In this thesis, we describe our modified issuing and showing protocols and discuss the security properties of our proposed scheme. We have a basic implementation (proof of concept) to support our concept and analysis of timing results is also provided. In the end, we point out a number of future directions which can be used to complement or improve this approach.
Some Applications of the Method of Normal Fundamental Functions to Oscillation Problems
Creators: name: Mul, Olena V.
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B37; 93C20; 74H15; 74H45

description: We report on the possibilities of using the method of normal fundamental systems for solving some problems of oscillation theory. Large elastic dynamical systems with continuous and discrete parameters are considered, which have many different engineering applications. Intensive oscillations in such systems are possible, but not desirable. Therefore, it is very important to obtain conditions for which oscillations take or not-take place. Mathematically, one needs to search for the solutions of partial differential equations satisfying both boundary and conjugation conditions. In this paper we overview the methodology of normal fundamental systems for the study of such oscillation problems, which provide an efficient and reliable computational method. The obtained results permit to analyze the influence of different system parameters on oscillations as well as to compute the optimal feedback parameters for the active vibration control of the systems.
description: Accepted (21-March-2006) to the Proceedings of MTNS 2006 (the 17th International Symposium on Mathematical Theory of Networks and Systems), to be held on July 24-28, 2006, in Kyoto, Japan
Early Detection of In-Memory Malicious Activity based on Run-time Environmental Features
Creators: name: Yaffe, Dorel
name: Hendler, Danny
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In recent years malware has become increasingly sophisticated and difficult to detect prior to exploitation. While there are plenty of approaches to malware detection, they all have shortcomings when it comes to identifying malware correctly prior to exploitation. The trade-off is usually between false positives, causing overhead, preventing normal usage and the risk of letting the malware execute and cause damage to the target. We present a novel end-to-end solution for in-memory malicious activity detection done prior to exploitation by leveraging machine learning capabilities based on data from unique run-time logs, which are carefully curated in order to detect malicious activity in the memory of protected processes. This solution achieves reduced overhead and false positives as well as deployment simplicity. We implemented our solution for Windows-based systems, employing multi disciplinary knowledge from malware research, machine learning, and operating system internals. Our experimental evaluation yielded promising results. As we expect future sophisticated malware may try to bypass it, we also discuss how our solution can be extended to thwart such bypassing attempts.
description: 26 pages, 12 figures, LNCS format, CSCML 2021 to appear
Lessons Learned from Open‐label Deep Brain Stimulation for Tourette Syndrome: Eight Cases over 7 Years
Creators: name: Motlagh, Maria G
name: Smith, Megan
name: Landeros-Weisenberger, Angeli
name: Kobets, Andrew J.
name: Miravite, Joan
name: De Lotbinière, MD
name: Alterman, Ron L.
name: Mogilner, Alon Y.
name: Pourfar, Michael H.
name: Okun, Michael S.
name: King, Robert A.
name: Leckman, James F.
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2013

description: Background: Deep brain stimulation (DBS) remains an experimental but promising treatment for patients with severe refractory Gilles de la Tourette syndrome (TS). Controversial issues include the selection of patients (age and clinical presentation), the choice of brain targets to obtain optimal patient‐specific outcomes, and the risk of surgery‐ and stimulation‐related serious adverse events. Methods: This report describes our open‐label experience with eight patients with severe refractory malignant TS treated with DBS. The electrodes were placed in the midline thalamic nuclei or globus pallidus, pars internus, or both. Tics were clinically assessed in all patients pre‐ and postoperatively using the Modified Rush Video Protocol and the Yale Global Tic Severity Scale (YGTSS). Results: Although three patients had marked postoperative improvement in their tics (>50% improvement on the YGTSS), the majority did not reach this level of clinical improvement. Two patients had to have their DBS leads removed (one because of postoperative infection and another because of lack of benefit). Discussion: Our clinical experience supports the urgent need for more data and refinements in interventions and outcome measurements for severe, malignant, and medication‐refractory TS. Because TS is not an etiologically homogenous clinical entity, the inclusion criteria for DBS patients and the choice of brain targets will require more refinement.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
An Efficient Signal to Noise Approximation for Eccentric Inspiraling Binaries
Creators: name: Randall, Lisa
name: Shelest, Alexandra
name: Xianyu, Zhong-Zhi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Eccentricity has emerged as a potentially useful tool for helping to identify the origin of black hole mergers. However, owing to the large number of harmonics required to compute the amplitude of an eccentric signal, eccentric templates can be computationally very expensive, making statistical analyses to distinguish distributions from different formation channels very challenging. In this paper, we outline a method for estimating the signal-to-noise ratio for inspiraling binaries at lower frequencies such as those proposed for LISA and DECIGO. Our approximation can be useful more generally for any quasi-periodic sources. We argue that surprisingly, the signal-to-noise ratio evaluated at or near the peak frequency (of the power) is well approximated by using a constant noise curve, even if in reality the noise strain has power law dependence. We furthermore improve this initial estimate over our previous calculation to allow for frequency-dependence in the noise to expand the range of eccentricity and frequency over which our approximation applies. We show how to apply this method to get an answer accurate to within a factor of two over almost the entire projected observable frequency range. We emphasize this method is not a replacement for detailed signal processing. The utility lies chiefly in identifying theoretically useful discriminators among different populations and providing fairly accurate estimates for how well they should work. This approximation can furthermore be useful for narrowing down parameter ranges in a computationally economical way when events are observed. We furthermore show a distinctive way to identify events with extremely high eccentricity where the signal is enhanced relative to naïve expectations on the high frequency end.
description: 17 pages