cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efficiency characterization of the V-shape asteroid family detection method
Creators: name: Deienno, Rogerio
name: Walsh, Kevin J.
name: Delbo, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Following the break up of a parent body, the Yarkovsky effect causes asteroid family members to spread in orbital semimajor axis with a rate often inversely proportional to their diameter. This size dependent semimajor axis drift causes family members to form structures in the semimajor axis vs inverse diameter plane that have the shape of the letter V. The V-shape method consists in finding the borders of such V-shapes of unknown center and opening. Although successfully employed to find some very old families in the inner main asteroid belt, the V-shape searching method is very sensitive to many parameters. In this work, we first created and evolved a synthetic asteroid family over billions of years. Then, by adding uncertainties to semimajor axis and diameter of the evolved synthetic family components, we randomly generated additional 99 similar, but not perfectly V-shaped, family clones. We chose a fairly low initial velocity dispersion of 20 m/s for our family. Thus, we can more easily relate the spreading in semimajor axis with the family's age (slope of the evolving V). A synthetic background with an initially randomly distributed components was also created and evolved for 100 Myr. Thus, by setting different levels of ratio of the synthetic family and background asteroids, we derived a detection efficiency map for the V-shape method and determined how sensitive the results can be based on signal-to-noise levels. We also determined optimal parameter values for the method's efficiency. We found that, families older than ~3 Gyr are likely undetectable, with a method efficiency of 50% or less, whereas younger families (0.5--2.5 Gyr) are more easily detected by the method, with an efficiency of >80%.
description: 21 pages, 16 figures, Accepted for publication in Icarus
Efficient Algorithms for Membership in Boolean Hierarchies of Regular Languages
Creators: name: Glasser, Christian
name: Schmitz, Heinz
name: Selivanov, Victor
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: The purpose of this paper is to provide efficient algorithms that decide membership for classes of several Boolean hierarchies for which efficiency (or even decidability) were previously not known. We develop new forbidden-chain characterizations for the single levels of these hierarchies and obtain the following results: - The classes of the Boolean hierarchy over level $Σ_1$ of the dot-depth hierarchy are decidable in $NL$ (previously only the decidability was known). The same remains true if predicates mod $d$ for fixed $d$ are allowed. - If modular predicates for arbitrary $d$ are allowed, then the classes of the Boolean hierarchy over level $Σ_1$ are decidable. - For the restricted case of a two-letter alphabet, the classes of the Boolean hierarchy over level $Σ_2$ of the Straubing-Thérien hierarchy are decidable in $NL$. This is the first decidability result for this hierarchy. - The membership problems for all mentioned Boolean-hierarchy classes are logspace many-one hard for $NL$. - The membership problems for quasi-aperiodic languages and for $d$-quasi-aperiodic languages are logspace many-one complete for $PSPACE$.
Force Mobilization and Generalized Isostaticity in Jammed Packings of Frictional Grains
Creators: name: Shundyak, Kostya
name: van Hecke, Martin
name: van Saarloos, Wim
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show that in slowly generated 2d packings of frictional spheres, a significant fraction of the friction forces lies at the Coulomb threshold - for small pressure p and friction coefficient mu, about half of the contacts. Interpreting these contacts as constrained leads to a generalized concept of isostaticity, which relates the maximal fraction of fully mobilized contacts and contact number. For p->0, our frictional packings approximately satisfy this relation over the full range of mu. This is in agreement with a previous conjecture that gently built packings should be marginal solids at jamming. In addition, the contact numbers and packing densities scale with both p and mu.
description: 4 pages, 4 figures, submitted
LIGHTEN: Learning Interactions with Graph and Hierarchical TEmporal Networks for HOI in videos
Creators: name: Sunkesula, Sai Praneeth Reddy
name: Dabral, Rishabh
name: Ramakrishnan, Ganesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.2.10

description: Analyzing the interactions between humans and objects from a video includes identification of the relationships between humans and the objects present in the video. It can be thought of as a specialized version of Visual Relationship Detection, wherein one of the objects must be a human. While traditional methods formulate the problem as inference on a sequence of video segments, we present a hierarchical approach, LIGHTEN, to learn visual features to effectively capture spatio-temporal cues at multiple granularities in a video. Unlike current approaches, LIGHTEN avoids using ground truth data like depth maps or 3D human pose, thus increasing generalization across non-RGBD datasets as well. Furthermore, we achieve the same using only the visual features, instead of the commonly used hand-crafted spatial features. We achieve state-of-the-art results in human-object interaction detection (88.9% and 92.6%) and anticipation tasks of CAD-120 and competitive results on image based HOI detection in V-COCO dataset, setting a new benchmark for visual features based approaches. Code for LIGHTEN is available at https://github.com/praneeth11009/LIGHTEN-Learning-Interactions-with-Graphs-and-Hierarchical-TEmporal-Networks-for-HOI
description: 9 pages, 6 figures, ACM Multimedia Conference 2020
Comment on "Strong Quantum Darwinism and Strong Independence are Equivalent to Spectrum Broadcast Structure"
Creators: name: Feller, Alexandre
name: Roussel, Benjamin
name: Frérot, Irénée
name: Degiovanni, Pascal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent Letter [Phys. Rev. Lett. 122, 010403 (2019)], an equivalence is proposed between the so-called Spectrum Broadcast Structure for a system-multienvironment quantum state, and the conjunction of two information-theory notions: (a) Strong Quantum Darwinism; and (b) Strong Independence. Here, we show that the mathematical formulation of condition (b) by the authors (namely, the pairwise independence of the fragments of the environment, conditioned on the system), is necessary but not sufficient to ensure the equivalence. We propose a simple counter-example, together with a strengthened formulation of condition (b), ensuring the equivalence proposed by the authors.
description: 2 pages, no figure
Succinctness of the Complement and Intersection of Regular Expressions
Creators: name: Gelade, Wouter
name: Neven, Frank
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We study the succinctness of the complement and intersection of regular expressions. In particular, we show that when constructing a regular expression defining the complement of a given regular expression, a double exponential size increase cannot be avoided. Similarly, when constructing a regular expression defining the intersection of a fixed and an arbitrary number of regular expressions, an exponential and double exponential size increase, respectively, can in worst-case not be avoided. All mentioned lower bounds improve the existing ones by one exponential and are tight in the sense that the target expression can be constructed in the corresponding time class, i.e., exponential or double exponential time. As a by-product, we generalize a theorem by Ehrenfeucht and Zeiger stating that there is a class of DFAs which are exponentially more succinct than regular expressions, to a fixed four-letter alphabet. When the given regular expressions are one-unambiguous, as for instance required by the XML Schema specification, the complement can be computed in polynomial time whereas the bounds concerning intersection continue to hold. For the subclass of single-occurrence regular expressions, we prove a tight exponential lower bound for intersection.
Accurate Single-Ended Measurement of Propagation Delay in Fiber Using Correlation Optical Time Domain Reflectometry
Creators: name: Azendorf, Florian
name: Dochhan, Annika
name: Eiselt, Michael H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A correlation optical time-domain reflectometry (COTDR) method is presented, which measures the propagation delay with an accuracy of a few picoseconds. This accuracy is achieved using a test signal data rate of 10 Gbit/s and employing cross-correlation and pulse fitting techniques. In this paper we introduce and evaluate the basic signal processing steps, investigate the measurement accuracy, and discuss applications for monitoring link delay and chromatic dispersion of long fiber spans as well as temperature sensing applications.
Transcription: The King and His Many Children
Creators: name: Palacio, Frank
name: Björklund, Anna
name: Elias, Alexander
name: López Márquez, Wendy
name: Michael, Lev
name: Montaño Ramírez, Tzintia
name: Robertson, Allegra
name: Wellstood, Zachary
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: cab

description: Last third of text.
Renormalization and blow up for charge one equivariant critical wave maps
Creators: name: Krieger, Joachim
name: Schlag, Wilhelm
name: Tataru, Daniel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35L05, 35Q75, 35P25

description: We prove the existence of equivariant finite time blow up solutions for the wave map problem from 2+1 dimensions into the 2-sphere. These solutions are the sum of a dynamically rescaled ground-state harmonic map plus a radiation term. The local energy of the latter tends to zero as time approaches blow up time. This is accomplished by first "renormalizing" the rescaled ground state harmonic map profile by solving an elliptic equation, followed by a perturbative analysis.
Beyond the surface, beyond arts' leftist slant: An argument for meaning in art with reference to five principles
Creators: name: Daniel Shorkend
Publisher: name: gjrpublication
Year: 2024

description: This article outlines a vision for the arts that retrieves meaning within the artwork, a meaning that can only result out of a rejection of the narrative of art theory and practice. The postmodern attempt to do just that fails as I argue that it is precisely the postmodern turn that has tended to an extreme leftist positioning that has left in its wake an anti-metaphysical approach to art and touts a narrative that simply categorizes the artist in terms of identity politics, while the art-object is servile to this rather dangerous philosophy in its lack of moral conviction. I argue that rather a true space for the individual, for actual meaning and a vision of art that leads to a better world should be the direction if art is to have real value (that is, touch life positively). I draw on five principles that may lead in such a direction for I would not be the first to claim that most art is not true (or good), a tradition that goes as far back as Plato’s analysis of the arts.
FUNDAMENTAL NAZARIY BILIMLARNI OSHIRUVCHI FANLAR UCHUN MUSTAQIL TA'LIM TOPSHIRIQLARI VAZIYATLI-VAZIFALAR TUZISHDA KREDIT TA'LIM USULLARI
Creators: name: Axmedova Maloxat Ergashevna
Publisher: name: Zenodo
Year: 2025

description: Annotatsiya: Ushbu maqolada fundamental nazariy bilimlarni oshirishga yo‘naltirilgan fanlar uchun mustaqil ta’lim topshiriqlari va vaziyatli-vazifalarni shakllantirish tamoyillari tahlil qilingan. Shuningdek, kredit ta’lim tizimi doirasida innovatsion o‘qitish metodlaridan foydalanishning samaradorligi va interfaol ta’lim yondashuvlarining ahamiyati yoritilgan. Maqolada talabalarning kasbiy kompetensiyalarini rivojlantirish uchun mustaqil ta’lim vazifalarini takomillashtirish bo‘yicha tavsiyalar ham berilgan.
GalaxyCount: a JAVA calculator of galaxy counts and variances in multiband wide-field surveys to 28 AB mag
Creators: name: Ellis, S. C.
name: Bland-Hawthorn, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We provide a consistent framework for estimating galaxy counts and variances in wide-field images for a range of photometric bands. The variances include both Poissonian noise and variations due to large scale structure. We demonstrate that our statistical theory is consistent with the counts in the deepest multiband surveys available. The statistical estimates depend on several observational parameters (e.g. seeing, signal to noise ratio), and include a sophisticated treatment of detection completeness. The JAVA calculator is freely available and offers the user the option to adopt our consistent framework or a different scheme. We also provide a summary table of statistical measures in the different bands for a range of different fields of view. Reliable estimation of the background counts has profound consequences in many areas of observational astronomy. We provide two such examples. One is from a recent study of the Sculptor galaxy NGC 300 where stellar photometry has been used to demonstrate that the outer disc extends to 10 effective radii, far beyond what was thought possible for a normal low-luminosity spiral. We confirm this finding by a reanalysis of the background counts. Secondly, we determine the luminosity function of the galaxy cluster Abell 2734, both through spectroscopically determined cluster membership, and through statistical subtraction of the background galaxies using the calculator and offset fields. We demonstrate very good agreement, suggesting that expensive spectroscopic follow-up, or off-source observations, may often be bypassed via determination of the galaxy background with GalaxyCount.
description: Accepted for publication in MNRAS. This version contains many significant improvements on the previous version, including: rigorous treatment of completeness in magnitude limited surveys, the effect of the window function, and examination of the perceived usefulness of offset fields. The accompanying JAVA tool is easy to use, freely available and can be downloaded, ready to use in seconds
title: Мария Алексеевна Фриде: наброски к биографии
title: Maria Alexeyevna Fridé: Sketch of the Biography
Creators: name: Груздева, Е. Н.
Publisher: name: Реноме
Year: 2021

description: Статья рассказывает о жизни одной из первых женщин, ставших научными сотрудниками советских историко-культурных учреждений. Активный период исследовательской работы М. А. Фриде был недолгим — всего около 15 лет, но она успела внести свой вклад в изучение истории древнерусской архитектуры и украинской этнографии.
description: The article gives information about one of the first woman researchers who worked in Soviet historical and cultural institutions. Although M. A. Fridé was working hard just within 15 years, she managed to make a positive contribution to the study of the Old Russian architecture and Ukrainian Ethnography.
Feynman cycles in the Bose gas
Creators: name: Ueltschi, Daniel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 82B10; 82B21; 82B26; 82D50

description: We study the lengths of the cycles formed by trajectories in the Feynman-Kac representation of the Bose gas. We discuss the occurrence of infinite cycles and their relation to Bose-Einstein condensation.
description: 17 pages
title: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 37 Nr. 1 (1996): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
titleType: AlternativeTitle
Creators: name: Burgen Und Schlösser-Zeitschrift Für Burgenforschung Und Denkmalpflege
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Dieter Dolgner, Klassizismus: Deutsche Baukunst...47 Adelheid Gräfin Eulenburg / Hans Engels, Ostpreußische Gutshäuser in Polen...46-47 Anselm Grupp, Schloß Ellwangen...45-46 Gerd Strickhausen, Die Boyneburg bei Eschwege...43-44 Christa Meiborg / Ulrich Reuling / Elmar Brohl, Burg Weißenstein bei Marburg-Wehrda...42-43 Schlesische Burgen und Schlösser auf Notgeldscheinen...37-39 Beobachtungen zum Castello dell'Imperatore in Prato...15-23 Das Aufkommen des Bergfrieds im 12. Jahrhundert...2-15 Inhalt
Looking for obscured young star clusters in NCG 1313
Creators: name: Messa, M.
name: Calzetti, D.
name: Adamo, A.
name: Grasha, K.
name: Johnson, K. E.
name: Sabbi, E.
name: Smith, L. J.
name: Bajaj, V.
name: Finn, M. K.
name: Lin, Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using recently acquired HST NIR observations (J, Pa$β$ and H bands) of the nearby galaxy NGC1313, we investigate the timescales required by a young star cluster to emerge from its natal cloud. We search for extincted star clusters, potentially embedded in their natal cloud as either: 1. compact sources in regions with high H$α$/Pa$β$ extinctions; 2. compact HII regions that appear as point-like sources in the Pa$β$ emission map. The NUV--optical--NIR photometry of the candidate clusters is used to derive their ages, masses and extinctions via a least$-χ^2$ SED broad and narrow--band fitting process. The 100 clusters in the final samples have masses in the range $\rm \log_{10}(M/M_\odot)=2.5-3.5$ and moderate extinctions, $\rm E(B-V)\lesssim1.0$ mag. Focusing on the young clusters ($0-6$ Myr) we derive a weak correlation between extinction and age of the clusters. Almost half of the clusters have low extinctions, $\rm E(B-V)<0.25$ mag, already at very young ages ($\le3$ Myr), suggesting that dust is quickly removed from clusters. A stronger correlation is found between the morphology of the nebular emission (compact, partial or absent, both in H$α$ and Pa$β$) and cluster age. Relative fractions of clusters associated with a specific nebular morphology is used to estimate the typical timescales for clearing the natal gas cloud, resulting between 3 and 5 Myr, $\sim1$ Myr older than what estimated from NUV--optical--based cluster studies. This difference hints to a bias for optically--only based studies, which JWST will address in the coming years.
description: 29 pages (20 figures, 5 tables) + appendix (6 pages, 6 figures, 1 table). Submitted, feedback/comments are welcome
Assessing the role of commercial aquaculture in displacing mangrove forest
Creators: name: Hamilton, Stuart E.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: Mangrove Deforestation
Commercial Aquaculture

description: To fill a gap in the marine science literature, I calculated the amount of mangrove deforestation in tropical estuaries that is attributable to commercial aquaculture. The eight countries analyzed were Indonesia, Brazil, India, Bangladesh, China, Thailand, Vietnam, and Ecuador. Together these countries contain approximately 36% of the world's remaining mangrove forest. One precommercial aquaculture remote sensing survey and one current remote sensing survey were undertaken in the major mangrove holding estuaries in each nation. The time period of the analysis varied by country based on the first arrival of large-scale commercial aquaculture, with the majority of initial surveys occurring in the early to mid-1970s and all the current surveys occurring post-2004. The surveys classified the land cover of 110,557 randomly located estuarine point locations and examined the land-cover change over time for each of these discreet locations. Among the largest and most representative account of global mangrove to aquaculture conversion, this study revealed that mangrove forests have lost 51.9% of their aerial extent during the analysis period. Of the mangrove loss during this period, I estimate that commercial aquaculture accounted for 28% of total mangrove loss across all nations resulting in approximately 544,000 ha of mangrove forest converted to aquaculture. There were significant differences in mangrove loss and mangrove to aquaculture conversion from nation to nation and even within nations.
Third-harmonic light polarization control in magnetically-resonant silicon metasurfaces
Creators: name: Tognazzi, Andrea
name: Okhlopkov, Kirill I.
name: Zilli, Attilio
name: Rocco, Davide
name: Fagiani, Luca
name: Mafakheri, Erfan
name: Bollani, Monica
name: Finazzi, Marco
name: Celebrano, Michele
name: Shcherbakov, Maxim R.
name: Fedyanin, Andrey A.
name: de Angelis, Costantino
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonlinear metasurfaces have become prominent tools for controlling and engineering light at the nanoscale. Usually, the polarization of the total generated third harmonic is studied. However, diffraction orders may present different polarizations. Here, we design an high quality factor silicon metasurface for third harmonic generation and perform back focal plane imaging of the diffraction orders, which present a rich variety of polarization states. Our results demonstrate the possibility of tailoring the polarization of the generated nonlinear diffraction orders paving the way to a higher degree of wavefront control.
Letter from J. Corbet at The Canadian Bank of Commerce to "Sirs" at Rainbow Ranche, August 27, 1912
Creators: name: Canadian Bank Of Commerce
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to "Sirs" at Rainbow Ranche from J. Corbet at The Canadian Bank of Commerce, dated August 27, 1912, regarding shareholders, loans, and finances.
Development of a Traffic Sign Inventory System (Sign Click)
Creators: name: Green, Eric R.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2006
Subjects: subject: Transportation Engineering

description: A system is not currently in place to inventory traffic signs in Kentucky. A sign inventory database would be beneficial for those responsible for maintenance and management of signs. The overall safety provided the driving public could benefit from an efficient inventory system that increases an agency’s knowledge of existing signs. In addition, a comprehensive inventory and mechanisms for updating the inventory could reduce the potential for liability associated with outdated, inappropriately placed, or missing signs. Software is available for this kind of inventory; however it can be expensive and would lack the specific features that could be developed in-house. It is intended that the system will serve as the model for expansion to a statewide inventory and management system for signs. This system will permit the Transportation Cabinet to track and monitor the number, location, and condition of signs that fall under their responsibility as part of the state-maintained roadways. This document will serve as a user’s manual for the sign inventory software entitled, Sign Click.
Analysis of Traffic Crash Data in Kentucky (2001 – 2005)
Creators: name: Green, Eric R.
name: Agent, Kenneth R.
name: Pigman, Jerry G.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2006
Subjects: subject: Transportation Engineering

description: This report documents an analysis of traffic crash data in Kentucky for the years of 2001 through 2005. A primary objective of this study was to determine average crash statistics for Kentucky highways. Average and critical numbers and rates of crashes were calculated for various types of highways in rural and urban areas. These data can be used in Kentucky’s procedure to identify locations that have abnormal rates or numbers of crashes. The other primary objective of this study was to provide data that can be used in the preparation of the problem identification portion of Kentucky’s Annual Highway Safety Plan. County and city crash statistics were analyzed. A summary of results and recommendations in several problem identification areas is presented. These general areas include; alcohol involvement, occupant protection, speed, teenage drivers, pedestrians, bicycles, motorcycles, trucks, and vehicle defects. Other areas included in the analysis for which specific recommendations were not made include drug involvement, school bus crashes, and train crashes. The crash data are now contained in the Collision Report Analysis for Safer Highways (CRASH) data base. This data base is updated daily so the number of crashes in a given calendar year will continue to change for a substantial time after the end of that year.
Trajectory Determination for Coronal Ejecta Observed by WISPR/Parker Solar Probe
Creators: name: Liewer, P. C.
name: Qiu, J.
name: Penteado, P.
name: Hall, J. R.
name: Vourlidas, A.
name: Howard, R. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The {\it Wide-field Imager for Solar Probe} (WISPR) on {\it Parker Solar Probe} (PSP), observing in white light, has a fixed angular field of view, extending from 13.5$^{\circ}$ to 108$^{\circ}$ from the Sun and approximately 50$^{\circ}$ in the transverse directions. Because of the highly elliptical orbit of PSP, the physical extent of the imaged coronal region varies directly as the distance from the Sun, requiring new techniques for analysis of the motions of observed density features. Here, we present a technique for determining the 3D trajectory of CMEs and other coronal ejecta moving radially at a constant velocity by first tracking the motion in a sequence of images and then applying a curve-fitting procedure to determine the trajectory parameters (distance vs. time, velocity, longitude and latitude). To validate the technique, we have determined the trajectory of two CMEs observed by WISPR that were also observed by another white-light imager, either LASCO/C3 or STEREO-A/HI1. The second viewpoint was used to verify the trajectory results from this new technique and help determine its uncertainty.
description: 28 pages, 11 figures, accepted by Solar Physics
Inner dusty regions of protoplanetary discs -- II. Dust dynamics driven by radiation pressure and disc winds
Creators: name: Vinković, Dejan
name: Čemeljić, Miljenko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We explore dust flow in the hottest parts of protoplanetary discs using the forces of gravity, gas drag and radiation pressure. Our main focus is on the optically thin regions of dusty disc, where the dust is exposed to the most extreme heating conditions and dynamical perturbations: the surface of optically thick disc and the inner dust sublimation zone. We utilise results from two numerically strenuous fields of research. The first is the quasi-stationary solutions on gas velocity and density distributions from mangetohydrodynamical (MHD) simulations of accretion discs. This is critical for implementing a more realistic gas drag impact on dust movements. The second is the optical depth structure from a high-resolution dust radiation transfer. This step is critical for a better understanding of dust distribution within the disc. We describe a numerical method that incorporates these solutions into the dust dynamics equations. We use this to integrate dust trajectories under different disc wind models and show how grains end up trapped in flows that range from simple accretion onto the star to outflows into outer disc regions. We demonstrate how the radiation pressure force plays one of the key roles in this process and cannot be ignored. It erodes the dusty disc surface, reduces its height, resists dust accretion onto the star, and helps the disc wind in pushing grains outwards. The changes in grain size and porosity significantly affect the results, with smaller and porous grains being influenced more strongly by the disc wind and radiation pressure.
description: 16 pages, 10 figures, accepted in MNRAS
Model Checking Games for the Quantitative mu-Calculus
Creators: name: Fischer, Diana
name: Grädel, Erich
name: Kaiser, Lukasz
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We investigate quantitative extensions of modal logic and the modal mu-calculus, and study the question whether the tight connection between logic and games can be lifted from the qualitative logics to their quantitative counterparts. It turns out that, if the quantitative mu-calculus is defined in an appropriate way respecting the duality properties between the logical operators, then its model checking problem can indeed be characterised by a quantitative variant of parity games. However, these quantitative games have quite different properties than their classical counterparts, in particular they are, in general, not positionally determined. The correspondence between the logic and the games goes both ways: the value of a formula on a quantitative transition system coincides with the value of the associated quantitative game, and conversely, the values of quantitative parity games are definable in the quantitative mu-calculus.
Centrozoros Kukalova-Peck & Peck 1993
Creators: name: Lima, Sheila P.
name: Oliveira, Ismael B.
name: Mazariegos, Luis A.
name: Fernandes, Daniell R. R.
name: Rafael, José A.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Zoraptera
Spiralizoridae
Centrozoros

description: Centrozoros Kukalová-Peck & Peck, 1993
Centrozoros Kukalová-Peck & Peck, 1993: 342; Chao & Chen, 2000: 24; Engel & Grimaldi, 2000: 151 (synonymy with Zorotypus); Kočárek, Horká & Kundrata, 2020 (revalidation).
Type-species: Zorotypus gurneyi Choe, 1989 (by original designation).
Distribution. Nearctic: United States of America. Neotropical: Mexico, Guatemala, Costa Rica, Panama, Jamaica, Colombia, Ecuador and Peru.
Diagnosis. Posteroventral surface of metafemur with 6‒10 spiniform setae, evenly spaced; males with a coiled aedeagus and an enlarged basal plate, which is posteriorly bifurcated and anteriorly spatulate, with an anterior tongue-like process, which has converging edges and is not dilated anteriorly.
Species included. See Table 1.
description: Published as part of Lima, Sheila P., Oliveira, Ismael B., Mazariegos, Luis A., Fernandes, Daniell R. R. & Rafael, José A., 2024, A new species of Centrozoros Kukalová-Peck & Peck, 1993 (Zoraptera: Spiralizoridae) from high elevations in the northwestern Andes of Colombia, pp. 237-245 in Zootaxa 5477 (2) on pages 239-240, DOI: 10.11646/zootaxa.5477.2.7, http://zenodo.org/record/12683529
Origin of the large thermoelectric power in oxygen-variable RBaCo_{2}O_{5+x} (R=Gd, Nd)
Creators: name: Taskin, A. A.
name: Lavrov, A. N.
name: Ando, Yoichi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thermoelectric properties of GdBaCo_{2}O_{5+x} and NdBaCo_{2}O_{5+x} single crystals have been studied upon continuous doping of CoO_2 planes with either electrons or holes. The thermoelectric response and the resistivity behavior reveal a hopping character of the transport in both compounds, providing the basis for understanding the recently found remarkable divergence of the Seebeck coefficient at x=0.5. The doping dependence of the thermoelectric power evinces that the configurational entropy of charge carriers, enhanced by their spin and orbital degeneracy, plays a key role in the origin of the large thermoelectric response in these correlated oxides.
description: 5 pages, 4 figures, accepted for publication in PRB
How SSHOC Meets the Needs of Researchers - An Interview with Agnieszka Szulińska
Creators: name: Szulińska, Agnieszka
Publisher: name: Zenodo
Year: 2021
Subjects: SSHOC
Social Sciences and Humanities Open Cloud
European Open Science Cloud
EOSC
digital humanities
sociolinguistics

description: Agnieszka Szulinska is a digital editor in the Digital Humanities Centre at the Institute of Literary Research of the Polish Academy of Sciences. Her research areas include: digital humanities, language of video games, sociolinguistics. Agnieszka is member of The Digital Humanities Centre at the Institute of Literary Research of the Polish Academy of Sciences. "Tools are difficult to find because they arrive and then dissipate, lacking a sustainable foundation. Precision and accuracy are also a problem. Did you know for example that Zotero saves all digital projects – editions, corpora, archives, repositories, parsers, online workshops, and so on – as websites or blog posts? So we have low levels of findability but our needs are very specific and we have high expectations."
Deviation equations and weak equivalence principle in spaces with affine connection
Creators: name: Iliev, Bozhidar Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Some connections between the deviation equations and weak equivalence principle are investigated.
description: 3 LaTeX pages. The packages AMS-LaTeX and amsfonts are required. This is an English translation from the Russian original. For related papers, visit the "publication" pages at http://theo.inrne.bas.bg/~bozho/
title: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 36 Nr. 3 (1995): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
titleType: AlternativeTitle
Creators: name: Burgen Und Schlösser-Zeitschrift Für Burgenforschung Und Denkmalpflege
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Die Redaktion stellt zur Diskussion: Das Burgverlies. Eine Hypothese zu seinem Zweck...166-176 Zum Burgenbau des 10. bis 12. Jahrhunderts in Niedersachsen...138-145 Burgenforschung aus Sachsen 5/6 (1995)...188-189 Der südliche Brückenkopf der Steinernen Brücke zu Regensburg...187-188 Die Burg im Landschaftsbild...159-166 Schloß Oedheim am Kocher, Kreis Heilbronn...146-151 Inhalt
Thermal instabilities, frequency comb formation, and temporal oscillations in Kerr microresonators
Creators: name: Leshem, Amir
name: Qi, Zhen
name: Carruthers, Thomas F.
name: Menyuk, Curtis R.
name: Gat, Omri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We analyze the consequences of dissipative heating in driven Kerr microresonators theoretically and numerically, using a thermal Lugiato-Lefever model. We show that thermal sensitivity modifies the stability range of continuous wave in a way that blocks direct access to broadband frequency-comb forming waveforms, and we propose a deterministic access path that bypasses the thermal instability barrier. We describe a novel thermal instability that leads to thermooptical oscillations via a Hopf bifurcation.
description: 21 pages, 5 figures, submitted to PRA
A method to identify the companion stars of type Ia supernovae in young supernova remnants
Creators: name: Ozaki, Jin
name: Shigeyama, Toshikazu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a method to identify the companion stars of type Ia supernovae (SNe Ia) in young supernova remnants (SNRs) by recognizing distinct features of absorption lines due to Fe I appearing in the spectrum. If a sufficient amount of Fe I remains in the ejecta, Fe I atoms moving toward us absorb photons by transitions from the ground state to imprint broad absorption lines exclusively with the blue-shifted components in the spectrum of the companion star. To investigate the time evolution of column depth of Fe I in the ejecta, we have performed hydrodynamical calculations for SNRs expanding into the uniform ambient media, taking into account collisional ionizations, excitations, and photo-ionizations of heavy elements. As a result, it is found that the companion star in Tycho's SNR will exhibit observable features in absorption lines due to Fe I at $λλ= 371.9935$ nm and 385.9911 nm if a carbon deflagration SN model is taken. However, these features may disappear by taking another model that emits a few times more intense ionizing photons from the shocked outer layers. To further explore the ionization states in the freely expanding ejecta, we need a reliable model to describe the structure of the outer layers.
description: 5 pages, 2 figures, accepted for the publication of The Astrophysical Journal
On triggered learning
Creators: name: Turkel, William Joseph
Publisher: name: University of British Columbia
Year: 2009

description: In current linguistic theory, natural languages are thought to depend on extensive interaction between systems of principles or violable constraints. The principles or constraints are considered to be innate, and subject to a small degree of variation. This variation is expressed in parameters or, alternately, in the ranking of constraints. Under such accounts, the child acquires the language of his or her community, in part, by establishing the settings of parameters or the ordering of constraints. The forms which the learner uses in this task are known as triggers. The study of triggered learning emphasises a number of dimensions of language acquisition. Here I consider three such dimensions: the space of possible languages, the nature of the input the child receives, and the nature of the learning algorithm. Chapter 1 provides an overview of the phenomena to be explained, the linguistic theory and the specific theory of learning which I assume. Chapter 2 investigates the extent to which small changes in the internal representation of grammars correspond to small changes in the resulting language. Chapter 3 explores the role that forms not accounted for by the target grammar may have on parameter setting. Chapter 4 shows that aspects of the learning scenario which lead to a failure of one kind of learning algorithm may not be as severe for another. In conclusion, I try to clarify the role that computational studies of language acquisition can play in the construction of linguistic theory, and the generation of testable hypotheses.
Asymptotic stability of small solitons to 1D NLS with potential
Creators: name: Mizumachi, Tetsu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider asymptotic stability of a small solitary wave to supercritical 1-dimensional nonlinear Schrödinger equations $$ iu_t+u_{xx}=Vu\pm |u|^{p-1}u \quad\text{for $(x,t)\in\mathbb{R}\times\mathbb{R}$,}$$ in the energy class. This problem was studied by Gustafson-Nakanishi-Tsai \cite{GNT} in the 3-dimensional case using the endpoint Strichartz estimate. To prove asymptotic stability of solitary waves, we need to show that a dispersive part $v(t,x)$ of a solution belongs to $L^2_t(0,\infty;X)$ for some space $X$. In the 1-dimensional case, this property does not follow from the Strichartz estimate alone. In this paper, we prove that the local smoothing effect of Kato type holds global in time and combine this estimate with the Strichartz estimate to show $\|(1+x^2)^{-3/4}v\|_{L^\infty_xL^2_t}
description: 24 pages, no figure. To appear in Journal of Mathematics of Kyoto University
Discovery of Magellanic Stellar Debris in the H3 Survey
Creators: name: Zaritsky, Dennis
name: Conroy, Charlie
name: Naidu, Rohan P.
name: Cargile, Phillip A.
name: Putman, Mary
name: Besla, Gurtina
name: Bonaca, Ana
name: Caldwell, Nelson
name: Han, Jiwon Jesse
name: Johnson, Benjamin D.
name: Speagle, Joshua S.
name: Ting, Yuan-Sen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of 15 stars in the H3 survey that lie, in projection, near the tip of the trailing gaseous Magellanic Stream (MS). The stars have Galactocentric velocities $< -155$ km s$^{-1}$, Galactocentric distances of $\approx 40$ to 80 kpc (increasing along the MS), and [Fe/H] consistent with that of stars in the Small Magellanic Cloud. These 15 stars comprise 94% (15 of 16) of the H3 observed stars to date that have $R_{GAL} > 37.5$ kpc, $-$350 km s$^{-1} < V_{GSR} < -155$ km s$^{-1}$, and are not associated with the Sagittarius Stream. They represent a unique portion of the Milky Way's outer halo phase space distribution function and confirm that unrelaxed structure is detectable even at radii where H3 includes only a few hundred stars. Due to their statistical excess, their close association with the MS and H I compact clouds in the same region, both in position and velocity space, and their plausible correspondence with tidal debris in a published simulation, we identify these stars as debris of past Magellanic Cloud encounters. These stars are evidence for a stellar component of the tidal debris field far from the Clouds themselves and provide unique constraints on the interaction.
description: Accepted for publication in ApJL
Die Kirche - Heilige oder Sünderin?
Creators: name: Enxing, Julia
name: Link-Wieczorek, Ulrike
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 63 Nr. 2 (2014): Ökumenische Rundschau, Band 63, Heft 2
Kinklike structures in an arcsin real scalar dynamics
Creators: name: Granado, Diego R.
name: Lima, Elisama E. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we analyze kink-like analytical solutions in a real scalar theory with an arcsin dynamics inspired by the arcsin electrodynamics presented in Kruglov (2015). This analysis is done by means of the first-order formalism. This formalism provides a framework where the equations of motion can be simplified by preserving the linear stability of the theory. In this work, the deformation procedure is implemented with the aim of finding exact solutions in systems with generalized dynamics. Along with the paper, we explore how the first-order formalism is implemented in the arcsin kinetics and how such a term influences the kink-like solutions. As a part of the result of our paper, we show that the kink-like solutions are similar to the ones obtained in the standard scalar kinetic theory. We also show that the extra parameter, that controls the non-linearities of the model, plays an essential role in the energy densities and stability potentials. These quantities vary according to this parameter. The goals here are to show how the first-order framework is implemented in this arcsin scenario and to present the analytical kink-like solutions that can be found by means of the first-order framework and deformation method.
description: 17 pages, 7 figures
Long Strings and Chiral Non-Singlets in Matrix Quantum Mechanics
Creators: name: Kostov, Ivan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the non-singlet sectors of Matrix Quantum Mechanics in application to two-dimensional string theory. We use the chiral formalism, which operates directly with incoming and outgoing asymptotic states, related by a scattering operator. We give a prescription for evaluating the tree level non-singlet scattering amplitudes given the profile of the Fermi sea. In the case of a stationary Fermi sea our general formula for the adjoint representation reproduces Maldacena's scattering amplitude for a long string to go in and come back to infinity.
description: typos corrected, a reference added
Monitorizando a Ciência Aberta: o Open Science Indicator Handbook do projeto PathOS e a sua implementação em repositórios
Creators: name: Príncipe, Pedro
name: Correia, Antónia
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão Pecha Kucha III, da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
Analytical Model for the Current Density in the Electrochemical Synthesis of Porous Silicon Structures with a Lateral Gradient
Creators: name: Ospina-Delacruz, C. A.
name: Agarwal, V.
name: Mochán, W. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Layered optical devices with a lateral gradient can be fabricated through electrochemical synthesis of porous silicon (PS) using a position dependent etching current density $\bm j(\bm r_\|)$. Predicting the local value of $\bm j(\bm r_\|)$ and the corresponding porosity $p(\bm r_\|)$ and etching rate $v(\bm r_\|)$ is desirable for their systematic design. We develop a simple analytical model for the calculation of $\bm j(\bm r_\|)$ within a prism shaped cell. Graded single layer PS samples were synthesized and their local calibration curves $p$ vs $\bm j$ and $v$ vs $\bm j$ were obtained from our model and their reflectance spectra. The agreement found between the calibration curves from different samples shows that from one sample we could obtain full calibration curves which may be used to predict, design, and fabricate more complex non-homogeneous multilayered devices with lateral gradients for manifold applications.
description: 19 pages, 13 figures
การต่อเติมหรือดัดแปลงทาวน์เฮ้าส์/ทาวน์โฮม
Creators: name: พิมพ์ยิหวา จำรูญวงษ์
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2558
Subjects: ทาวน์เฮ้า/ทาวน์โฮม, การต่อเติมหรือดัดแปลง, ผู้อยู่อาศัย

description: 2, 7, วารสารปัญญาภิวัฒน์
Notebook 02 (May 1971-May 1972)
Creators: name: Hutchison, Alexander
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poetry, Modern
valueUri: http://id.worldcat.org/fast/1067769
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Poets, Scottish
valueUri: http://id.worldcat.org/fast/1068037
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Literature
valueUri: http://id.worldcat.org/fast/999953
subject: Theology
valueUri: http://id.worldcat.org/fast/1149559
subject: College teachers
valueUri: http://id.worldcat.org/fast/868114
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion

description: Alexander ("Sandy") Hutchison (1943-2015) was a Scottish poet who taught at various colleges and universities on Vancouver Island between the 1960s-80s, including the Department of English at the University of Victoria in 1966. These notebooks contain content ranging from notes about/from various philosophers, to personal correspondence, to drafts of his poetry.