cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Partitioning the real line into Borel sets
Creators: name: Brian, Will
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: For which infinite cardinals $κ$ is there a partition of the real line $\mathbb R$ into precisely $κ$ Borel sets?
 Hausdorff famously proved that there is a partition of $\mathbb R$ into $\aleph_1$ Borel sets. But other than this, we show that the spectrum of possible sizes of partitions of $\mathbb R$ into Borel sets can be fairly arbitrary. For example, given any $A \subseteq ω$ with $0,1 \in A$, there is a forcing extension in which $A = \{ n :\, \text{there is a partition of }\mathbb R\text{ into }\aleph_n\text{ Borel sets}\}$.
 We also look at the corresponding question for partitions of $\mathbb R$ into closed sets. We show that, like with partitions into Borel sets, the set of all uncountable $κ$ such that there is a partition of $\mathbb R$ into precisely $κ$ closed sets can be fairly arbitrary.
Large-scale mapping observations of the CI(3P1-3P0) and CO(J=3-2) lines toward the Orion A molecular cloud
Creators: name: Ikeda, Masafumi
name: Maezawa, Hiroyuki
name: Ito, Tetsuya
name: Saito, Gaku
name: Sekimoto, Yutaro
name: Yamamoto, Satoshi
name: Tatematsu, Ken'ichi
name: Arikawa, Yuji
name: Aso, Yoshiyuki
name: Noguchi, Takashi
name: Shi, Sheng-Cai
name: Miyazawa, Keisuke
name: Saito, Syuji
name: Ozeki, Hiroyuki
name: Fujiwara, Hideo
name: Ohishi, Masatoshi
name: Inatani, Junji
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Large scale mapping observations of the 3P1-3P0 fine structure transition of atomic carbon (CI, 492 GHz) and the J=3-2 transition of CO (346 GHz) toward the Orion A molecular cloud have been carried out with the Mt. Fuji submillimeter-wave telescope. The observations cover 9 square degrees, and include the Orion nebula M42 and the L1641 dark cloud complex. The CI emission extends over almost the entire region of the Orion A cloud and is surprisingly similar to that of 13CO(J=1-0).The CO(J=3-2) emission shows a more featureless and extended distribution than CI.The CI/CO(J=3-2) integrated intensity ratio shows a spatial gradient running from the north (0.10) to the south (1.2) of the Orion A cloud, which we interpret as a consequence of the temperature gradient. On the other hand, the CI/13CO(J=1-0) intensity ratio shows no systematic gradient. We have found a good correlation between the CI and 13CO(J=1-0) intensities over the Orion A cloud. This result is discussed on the basis of photodissociation region models.
description: Text file is 13 pages long, and 3 figure files (pdf format). NRO Report No. 508 (1999). University of Tokyo, Resceu 41/99
The CO-dark molecular gas in the cold HI arc
Creators: name: Luo, Gan
name: Li, Di
name: Zhang, Zhi-yu
name: Bisbas, Thomas G.
name: Tang, Ningyu
name: Lin, Lingrui
name: Sun, Yichen
name: Zuo, Pei
name: Zhou, Jing
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The CO-dark molecular gas (DMG), which refers to the molecular gas not traced by CO emission, is crucial for the evolution of the interstellar medium (ISM). While the gas properties of DMG have been widely explored in the Solar neighborhood, whether or not they are similar in the outer disk regions of the Milky Way is still not well understood. In this Letter, we confirm the existence of DMG toward a cold HI arc structure at 13 kpc away from the Galactic center with both OH emission and HI narrow self-absorption (HINSA). This is the first detection of HINSA in the outer disk region, in which the HINSA fraction ($N_{\rm HINSA}$/$N_{\rm H_2}$ = 0.022$\pm$0.011) is an order of magnitude higher than the average value observed in nearby evolved dark clouds, but is consistent with that of the early evolutionary stage of dark clouds. The inferred H$_2$ column density from both extinction and OH emission ($N_{\rm H_2} \approx 10^{20}$ cm$^{-2}$) is an order of magnitude higher than previously estimated. Although the ISM environmental parameters are expected to be different between the outer Galactic disk regions and the Solar neighborhood, we find that the visual extinction ($A_{\rm V}$ = 0.19$\pm$0.03 mag), H$_2$-gas density ($n_{\rm H_2} = 91\pm46$ cm$^{-3}$), and molecular fraction (58\%$\pm$28\%) of the DMG are rather similar to those of nearby diffuse molecular clouds. The existence of DMG associated with the expanding HI supershell supports a scenario where the expansion of supershells may trigger the formation of molecular clouds within a crossing timescale of the shock wave ($\sim$10$^6$ yr).
description: 9 pages, 5 figures, accepted by A&A Letter
Comparison of Discovery Limits for Extra Z Bosons at Future Colliders
Creators: name: Godfrey, Stephen
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study and compare the discovery potential for heavy neutral gauge bosons ($Z'$) at various $e^+e^-$ and $p\stackrel{(-)}{p}$ colliders that are planned or have been proposed. Typical discovery limits are for the TEVATRON $\sim 1$ TeV, DI-TEVATRON $\sim 2$ TeV, LHC $\sim 4$ TeV, LSGNA (a 60 TeV $pp$ collider) $\sim 13$ TeV while the $e^+e^-$ discovery limits are $2-10\times \sqrt{s}$ with the large variation reflecting the model dependence of the limits. While both types of colliders have comparable discovery limits the hadron colliders are generally less dependent on the specific $Z'$ model and provide more robust limits since the signal has little background. In contrast, discovery limits for $e^+e^-$ limits are more model dependent and because they are based on indirect inferences of deviations from standard model predictions, they are more sensitive to systematic errors.
description: 13 pages, 1 figure (postscript), uses REVTEX, to be published in PRD
Eighth Annual Provincial Convention (3 of 4)
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains annual provincial convention minutes, session one dated June 13-14, 1981 and session two dated June 27-28, 1981. Topics discussed include discipline, support for the Canadian Farmworkers Union, reports from Locals, Local 5 (Caledonia) affiliation with the CCU, strikes, nominations, per capita tax, interactions between Local and Provincial executives, financial reports, resolutions and amendments, support for political and humanitarian causes such as prisoners in Ireland, abortion rights, and opposing a nuclear research reactor at SFU.
JU_KS@SAIL_CodeMixed-2017: Sentiment Analysis for Indian Code Mixed Social Media Texts
Creators: name: Sarkar, Kamal
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: 68T50

description: This paper reports about our work in the NLP Tool Contest @ICON-2017, shared task on Sentiment Analysis for Indian Languages (SAIL) (code mixed). To implement our system, we have used a machine learning algo-rithm called Multinomial Naïve Bayes trained using n-gram and SentiWordnet features. We have also used a small SentiWordnet for English and a small SentiWordnet for Bengali. But we have not used any SentiWordnet for Hindi language. We have tested our system on Hindi-English and Bengali-English code mixed social media data sets released for the contest. The performance of our system is very close to the best system participated in the contest. For both Bengali-English and Hindi-English runs, our system was ranked at the 3rd position out of all submitted runs and awarded the 3rd prize in the contest.
description: NLP Tool Contest on Sentiment Analysis for Indian Languages (Code Mixed) held in conjunction with the 14th International Conference on Natural Language Processing, 2017
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1205
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1205, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1205, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Additional file 3 of HSF1 is involved in suppressing A1 phenotype conversion of astrocytes following spinal cord injury in rats
Creators: name: Li, Lilan
name: Li, Yu
name: He, Bingqiang
name: Li, Hui
name: Ji, Huiyuan
name: Wang, Yingjie
name: Zhu, Zhenjie
name: Hu, Yuming
name: Zhou, Yue
name: Yang, Ting
name: Sun, Chunshuai
name: Yuan, Ying
name: Wang, Yongjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3: Figure S3. Determination of C3 ptotein levels in the astrocytes following inhibition of HSF1 expression. a Western blot analysis of HSF1 and C3 following astrocyte transfection with HSF1 siRNA for 48 h. b Quantification of (a). c Western blot analysis of HSF1 and C3 following astrocyte treatment with 0 - 60 μM quercetin for 24 h. d Quantification of (c). Quantities were normalized to endogenous β-actin. n = 6. Experiments were performed in triplicates. Error bars represent the standard deviation. *P < 0.05, one-way ANOVA with Dunnett’s post hoc test.
Viewing the Shadow of the Black Hole at the Galactic Center
Creators: name: Falcke, Heino
name: Melia, Fulvio
name: Agol, Eric
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In recent years, the evidence for the existence of an ultra-compact concentration of dark mass associated with the radio source Sgr A* in the Galactic Center has become very strong. However, an unambiguous proof that this object is indeed a black hole is still lacking. A defining characteristic of a black hole is the event horizon. To a distant observer, the event horizon casts a relatively large ``shadow'' with an apparent diameter of ~10 gravitational radii due to bending of light by the black hole, nearly independent of the black hole spin or orientation. The predicted size (~30 micro-arcseconds) of this shadow for Sgr A* approaches the resolution of current radio-interferometers. If the black hole is maximally spinning and viewed edge-on, then the shadow will be offset by ~8 micro-arcseconds from the center of mass, and will be slightly flattened on one side. Taking into account scatter-broadening of the image in the interstellar medium and the finite achievable telescope resolution, we show that the shadow of Sgr A* may be observable with very long-baseline interferometry at sub-millimeter wavelengths, assuming that the accretion flow is optically thin in this region of the spectrum. Hence, there exists a realistic expectation of imaging the event horizon of a black hole within the next few years.
description: 5 pages, 1 figure (color), (AAS)Tex, to appear in The Astrophysical Journal Letters, Vol. 528, L13 (Jan 1, 2000 issue); also available at http://www.mpifr-bonn.mpg.de/staff/hfalcke/publications.html#bhimage
No nearby counterparts to the moving objects in the Hubble Deep Field
Creators: name: Flynn, Chris
name: Sommer-Larsen, J.
name: Fuchs, B.
name: Graff, David S.
name: Salim, Samir
name: .
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Ibata et al (1999) have recently discovered faint, moving objects in the Hubble Deep Field. The quantity, magnitudes and proper motions of these objects are consistent with old white dwarfs making up the Galactic dark halo. We review a number of ground-based proper motion surveys in which nearby dark halo white dwarfs might be present, if they have the colours and absolute magnitudes proposed. No such objects have been found, whereas we argue here that several times more would be expected than in the Hubble Deep Field. We conclude it is unlikely that hydrogen atmosphere white dwarfs make up a significant fraction of the halo dark matter. No limits can be placed yet on helium atmosphere dwarfs from optical searches.
description: 7 pages, 4 figures, MNRAS LaTeX format
Radiative Symmetry Breaking in a Supersymmetric Model with an Extra $U(1)$
Creators: name: Suematsu, Daijiro
name: Yamagishi, Yoshio
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Radiative symmetry breaking is studied in a superstring-inspired supersymmetric model which is extended with a low energy extra $U(1)$ symmetry. In this model the $μ$-problem is radiatively solved in an automatic way. The right-handed neutrino can be heavy and the seesaw mechanism will produce the small neutrino mass which makes the MSW solution applicable to the solar neutrino problem. We search a parameter region which has the favorable feature for the radiative symmetry breaking at the weak scale. Rather wide parameter region is found to be allowed. The upper bound of the extra $Z$ boson mass is estimated as $M_{Z_2} \le 2000$~GeV for a top mass range $ 150~{\rm GeV} \le m_t \le 190~{\rm GeV}$. Some phenomenological features of the extra $Z$ boson are also presented.
description: LaTeX, 20 pages + 5 figures attached as uuencoded tar-compressed
Eighth Annual Provincial Convention (2 of 4)
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains annual provincial convention materials, dated March 30, 1980 to April 7, 1981. Topics discussed include executive reports, a report from the affiliation committee, strikes, support for other unions, provincial organizer's report, financial statements, support for the SFU 18, correspondence with the CCU and CLC, and potential affiliation. File also contains blank notebook pages.
Degenerating hyperbolic surfaces and spectral gaps for large genus
Creators: name: Wu, Yunhui
name: Zhang, Haohao
name: Zhu, Xuwen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this article we study the differences of two consecutive eigenvalues $λ_{i}-λ_{i-1}$ up to $i=2g-2$ for the Laplacian on hyperbolic surfaces of genus $g$, and show that the supremum of such spectral gaps over the moduli space has infimum limit at least $\frac{1}{4}$ as genus goes to infinity. A min-max principle for eigenvalues on degenerating hyperbolic surfaces is also established.
description: Final version accepted by Analysis & PDE
Spectroscopic and photometric observations of Symbiotic Nova PU Vul during 2009-2016
Creators: name: Tatarnikova, A. A.
name: Burlak, M. A.
name: Kolotilov, E. A.
name: Metlova, N. V.
name: Shenavrin, V. I.
name: Shugarov, S. Yu.
name: Tarasova, T. N.
name: Tatarnikov, A. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A new set of low-resolution spectral and UBVJHKL-photometric observations of the symbiotic nova PU Vul is presented. The binary has been still evolving after the symbiotic nova outburst in 1977 and now it's in the nebular stage. It is found that the third orbital cycle (after 1977) was characterized by great changes in light curves. Now PU Vul demonstrates a sine-wave shape of all light curves (with an amplitude in the U band of about 0.7 mag), which is typical for symbiotic stars in quiescent state. Brightness variability due to cool component pulsations is now clearly visible in the VRI light curves. The amplitude of the pulsations increases from 0.5 mag in V band to 0.8 mag in I band. These two types of variability, as well as a very slow change of the hot component physical parameters due to evolution after the outburst of 1979, influence the spectral energy distribution of the system. The emission lines variability is highly complex. Only hydrogen lines fluxes vary with orbital phase. An important feature of the third orbital cycle is the first appearance of the OVI, 6828A Raman scattering line. We determined the hot component temperature by means of Zanstra method applied to the He II, 4686 line. Our estimate is about 150000 K for the spectrum obtained near orbital maximum in 2014. The VO spectral index derived near pulsation minimum corresponds to M6 spectral class for the cool component of PU Vul.
Eighth Annual Provincial Convention (1 of 4)
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains an annual provincial convention docket dated June 13-14, 1981. Records in the docket include a list of delegates and alternatives, an agenda, rules of order, convention minutes (1980), detailed reports from executives, committees, Locals, financial statements, and resolutions and amendments.
Efficient and selective adsorption of methylene blue and methyl violet dyes by yellow passion fruit peel
Creators: name: Lin, Hua
name: Chen, Kaiwei
name: Du, Linlin
name: Gao, Peng
name: Zheng, Junli
name: Liu, Yuanli
name: Ma, Lili
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Plant Biology

description: As an important biomass resource, agricultural waste is of great significance to improve the application value. In this study, the yellow passion fruit peel (Y-PFP) was used as a biosorbent to remove cationic dyes (methylene blue (MB) and methyl violet (MV)) by the simple treatment process. And the effects of pH, contact time, initial dye concentration, ionic strength, and temperature on the adsorption performance of Y-PFP were studied. The adsorption process was consistent with the pseudo-second-order kinetic model and Langmuir isotherm. What’s more, the maximum adsorption capacity for MB and MV was 324.7 mg·g-1 and 485.4 mg·g-1, respectively. And Y-PFP still exhibited high removal efficiency after five desorption-adsorption cycles. Thus, Y-PFP had highly valuable for the removal of cationic dyes from wastewater with simple preparation process, low cost, excellent adsorption capacity and selectivity.
A new IR-Array photometric survey of Galactic Globular Clusters: A detailed study of the RGB sequence as a step towards the global testing of stellar models
Creators: name: Ferraro, Francesco R.
name: Montegriffo, Paolo
name: Origlia, Livia
name: Pecci, Flavio Fusi
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high quality near infrared Color Magnitude Diagrams of 10 Galactic Globular Clusters (GCs) spanning a wide metallicity range (-2.15
description: 36 pages, 18 figures, accepted in AJ
Plateau flow or the heat flow for half-harmonic maps
Creators: name: Struwe, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K55, 35K65, 53E99

description: Using the interpretation of the half-Laplacian on $S^1$ as the Dirichlet-to-Neumann operator for the Laplace equation on the ball $B$, we devise a classical approach to the heat flow for half-harmonic maps from $S^1$ to a closed target manifold $N$, recently studied by Wettstein, and for arbitrary finite-energy data we obtain a result fully analogous to the author's 1985 results for the harmonic map heat flow of surfaces and in similar generality. When $N$ is a smoothly embedded, oriented closed curve $Γ$ the half-harmonic map heat flow may be viewed as an alternative gradient flow for a variant of the Plateau problem of disc-type minimal surfaces.
description: added references, corrected typos
Ministry of Labour working conditions
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains records relating to inspection of working conditions in UBC buildings and facilities, dated March 31, 1980 to April 27, 1982. Records include "Report of the Library Processing Centre Environment Task Force Committee, March 1981", incoming and outgoing correspondence, interdepartmental memorandum, petitions, and list of workplace hazards. Topics of correspondence include investigations, complaints about working conditions, and compensation for workplace injury.
On the lagrangian of N=1, D=10 dual supergravity
Creators: name: Zyablyuk, K. N.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown how one can construct the lagrangian of dual supergravity by means of the equations of motion derived from the superspace approach.
description: 11 pages
The spin of the second-born black hole in coalescing binary black holes
Creators: name: Qin, Y.
name: Fragos, T.
name: Meynet, G.
name: Andrews, J.
name: Sørensen, M.
name: Song, H. F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Various binary black hole formation channels have been proposed since the first gravitational event GW150914 was discovered by the Advanced Laser Interferometer Gravitational-Wave Observatory (AdLIGO). For all evolutionary channels based on the evolution of isolated binaries, the immediate progenitor of the binary black hole is a close binary system composed of a black hole and a helium star. We perform detailed binary evolution and systematically explore the parameter space of initial binary properties, including initial black hole and helium star masses, initial rotation of the helium star as well as metallicity. We argue that the spin of the first-born black hole at its birth is negligible ($\lesssim 0.1$), hence the second-born black hole's spin dominates the measured effective spin, $χ_{\rm eff}$, from gravitational wave events of double black hole mergers. We find that tides can be important only when orbital periods are shorter than 2 days. Upon core collapse, the helium star produces a black hole (the second-born black hole in the system) with a spin that can span the entire range from zero to maximally spinning. We show that the bimodal distribution of the spin of the second-born black hole obtained in recent papers is mainly due to oversimplifying assumptions. We find an anti-correlation between the merging timescale of the two black holes, T$_{\rm merger}$, and the effective spin $χ_{\rm eff}$. Finally, we provide new prescriptions for the tidal coefficient E$_2$ for both H-rich and the helium-rich stars. We predict that, with future improvements to AdLIGO's sensitivity, the sample of merging binary black hole systems will show an overdensity of sources with positive but small $χ_{\rm eff}$. originating from lower mass black hole mergers born at low redshift.
description: 20 pages, 15 figures; submitted to A&A
Additional file 1 of HSF1 is involved in suppressing A1 phenotype conversion of astrocytes following spinal cord injury in rats
Creators: name: Li, Lilan
name: Li, Yu
name: He, Bingqiang
name: Li, Hui
name: Ji, Huiyuan
name: Wang, Yingjie
name: Zhu, Zhenjie
name: Hu, Yuming
name: Zhou, Yue
name: Yang, Ting
name: Sun, Chunshuai
name: Yuan, Ying
name: Wang, Yongjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Figure S1. Western blot analysis of HSF1 expression following spinal cord contusion at 0d, 1d, 4d and 7d, respectively. Quantities were normalized to endogenous β-actin. n = 6. Experiments were performed in triplicates. Error bars represent the standard deviation (P > 0.05).
Intensive HST, RXTE and ASCA Monitoring of NGC 3516: Evidence Against Thermal Reprocessing
Creators: name: Edelson, Rick
name: Koratkar, Anuradha
name: Nandra, Kirpal
name: Goad, Michael
name: Peterson, Bradley M.
name: Collier, Stefan
name: Krolik, Julian
name: Malkan, Matthew
name: Maoz, Dan
name: O'Brien, Paul
name: Shull, J. Michael
name: Vaughan, Simon
name: Warwick, Robert
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: During 1998 April 13-16, NGC 3516 was monitored almost continuously with HST for 10.3 hr in the UV and 2.8 d in the optical, and simultaneous RXTE and ASCA monitoring covered the same period. The X-rays were strongly variable with the soft (0.5-2 keV) showing stronger variations (~65% peak-to-peak) than the hard (2-10 keV; ~50% peak-to-peak). The optical continuum showed much smaller but highly significant variations: a slow ~2.5% rise followed by a faster ~3.5% decline. The short UV observation did not show significant variability. The soft and hard X-ray light curves were strongly correlated with no significant lag. Likewise, the optical continuum bands (3590 and 5510 A) were also strongly correlated with no measurable lag above limits of <0.15 d. However no significant correlation or simple relationship could be found for the optical and X-ray light curves. These results appear difficult to reconcile with previous reports of correlations between X-ray and optical variations and of measurable lags within the optical band for some other Seyfert 1s. These results also present serious problems for "reprocessing" models in which the X-ray source heats a stratified accretion disk which then reemits in the optical/ultraviolet: the synchronous variations within the optical would suggest that the emitting region is <0.3 lt-d across, while the lack of correlation between X-ray and optical variations would indicate, in the context of this model, that any reprocessing region must be >1 lt-d in size. It may be possible to resolve this conflict by invoking anisotropic emission or special geometry, but the most natural explanation appears to be that the bulk of the optical luminosity is generated by some other mechanism than reprocessing.
description: 23 pages including 6 figures, accepted for publication in ApJ
[Local 5 secession records] (1 of 2)
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains material from Local 5 (College of New Caledonia) related to secession from AUCE and affiliation with the Confederation of Canadian Unions, dated April 6, 1981 to May 8, 1982. Records include incoming and outgoing correspondence, referendum ballot, hearing minutes, convention minutes, completed questionnaires, application for affiliation, and Provincial constitution.
AUCE Ninth Annual Provincial Convention (1 of 2)
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains minutes of the June 1982 AUCE Ninth Annual Provincial Convention. Topics discussed include Provincial executive and committee reports, financial report and budget, local reports, business arising from the 8th annual convention, resolutions, constitutional amendments, nominations to the Provincial executive, and emergency amendments.
Consistent simulation of capacitive radio-frequency discharges and external matching networks
Creators: name: Schmidt, Frederik
name: Mussenbrock, Thomas
name: Trieschmann, Jan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: External matching networks are crucial and necessary for operating capacitively coupled plasmas in order to maximize the absorbed power. Experiments show that external circuits in general heavily interact with the plasma in a nonlinear way. This interaction has to be taken into account in order to be able to design suitable networks, e.g., for plasma processing systems. For a complete understanding of the underlying physics of this coupling, a nonlinear simulation approach which considers both the plasma and the circuit dynamics can provide useful insights. In this work, the coupling of an equivalent circuit plasma model and an electric external circuit composed of lumped elements is discussed. The plasma model itself is self-consistent in the sense that the plasma density and the electron temperature is calculated from the absorbed power based on a global plasma chemistry model. The approach encompasses all elements present in real plasma systems, i.e., the discharge itself, the matching network, the power generator as well as stray loss elements. While the main results of this work is the conceptual approach itself, at the example of a single-frequency capacitively coupled discharge its applicability is demonstrated. It is shown that it provides an effective and efficient way to analyze and understand the nonlinear dynamics of real plasma systems and, furthermore, may be applied to synthesize optimal matching networks.
Why We Engage in FLOSS: Answers from Core Developers
Creators: name: Coelho, Jailton
name: Valente, Marco Tulio
name: Silva, Luciana L.
name: Hora, Andre
Publisher: name: arXiv
Year: 2018
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The maintenance and evolution of Free/Libre Open Source Software (FLOSS) projects demand the constant attraction of core developers. In this paper, we report the results of a survey with 52 developers, who recently became core contributors of popular GitHub projects. We reveal their motivations to assume a key role in FLOSS projects (e.g., improving the projects because they are also using it), the project characteristics that most helped in their engagement process (e.g., a friendly community), and the barriers faced by the surveyed core developers (e.g., lack of time of the project leaders). We also compare our results with related studies about others kinds of open source contributors (casual, one-time, and newcomers).
description: Accepted at CHASE 2018: 11th International Workshop on Cooperative and Human Aspects of Software Engineering (8 pages)
Multiscale Augmented Normalizing Flows for Image Compression
Creators: name: Windsheimer, Marc
name: Brand, Fabian
name: Kaup, André
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Most learning-based image compression methods lack efficiency for high image quality due to their non-invertible design. The decoding function of the frequently applied compressive autoencoder architecture is only an approximated inverse of the encoding transform. This issue can be resolved by using invertible latent variable models, which allow a perfect reconstruction if no quantization is performed. Furthermore, many traditional image and video coders apply dynamic block partitioning to vary the compression of certain image regions depending on their content. Inspired by this approach, hierarchical latent spaces have been applied to learning-based compression networks. In this paper, we present a novel concept, which adapts the hierarchical latent space for augmented normalizing flows, an invertible latent variable model. Our best performing model achieved average rate savings of more than 7% over comparable single-scale models.
description: 5 pages, 7 figures
AUCE Ninth Annual Provincial Convention (2 of 2)
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains the agenda and associated material for the June 1982 AUCE Ninth Annual Provincial Convention. Associated material includes a delegate list, provincial executive reports, provincial committee reports, financial statements, local reports, resolutions, constitutional amendments, and emergency proposals.
Relationship Between Ancient Settlements and Earthquakes ( LAPBERT PUBLISHING).pdf
Creators: name: Tokmak, Musa
Publisher: name: figshare
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: 50104 Landscape Ecology

description: ABSTRACT: Turkey is geologically located within an active area (Bozkurt, 2000). Active tectonism in most cases is the primary reason for the natural hazards (Ambraseys, 2001). Turkey has different archaeological settlements of different periods. Most of these settlements are believed to suffer particularly from the earthquakes. The excavation reports of some ancient settlements have the evidences for this belief (Altunel and Barka, 2001). The purpose of this study is to evaluate the location of settlements in relation to active faults existing in the western Anatolia. The main hypothesis in this study is that there is a genetic relationship between the active faults and the location of the settlement. To prove this hyptosesis the case studies in Aydın region was evaluated with different ancient cities.ÖZ:Bu çalışma, antik yerleşimlerle bu yerleşimlerin sahip olduğu topografik, kaya ve morfolojik tipleri gibi fiziksel ve çevresel parametreler arasındaki ilişkileri incelemekte. Bu çalışmada modern yerleşimlerde yer verilerek zaman içinde depreme olan tepkinin geçmişten günümüze değişip değişmedi analiz edilmeye çalışılmıştır. Çalışmada üç topoğrafik değer (yükseklik, eğim, bakı), kaya türü, antik yerleşimler ve modern yerleşimlerin veritabanları yaratılmıştır. Çalışmada, antik ve modern yerleşimler için uzaklık ve yoğunluk analizi, morfoloji analizi;her iki yerleşim için de kaya türlerinin dağılımın analizi yapılmıştır.Bu çalışmanın sonuçları şunları göstermiştir 1) aktif faylar yerleşim için uygun topoğrafyalar oluşturmuştur, 2) yerleşim yeri olarak insanlar fay hattına yakın
yerleri seçmişlerdir, ve 3) onlar yerleşim yerlerindeki deprem potansiyelinden farkında değildiler. Buna ilaveten, yerleşim yerlerinin avantajından dolayı, zararda görseler tekrardan binalar yaparak yerlişim yerlerini değiştirmeyi düşünmemişlerdir.
Infrared Fixed Points and Fixed Lines in the Top-Bottom-Tau Sector in Supersymmetric Grand Unification
Creators: name: Schrempp, Barbara
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The two-loop ``top-down'' renormalization group flow for the top, bottom and tau Yukawa couplings is explored in the framework of supersymmetric grand unification; reproduction of the physical bottom and tau masses is required. Instead of following the recent trend of implementing exact Yukawa coupling unification i) a search for infrared (IR) fixed lines and fixed points in the m(top)-tan(beta) plane is performed and ii) the extent to which these imply approximate Yukawa unification is determined. Two IR fixed lines, intersecting in an IR fixed point, are located. The more attractive fixed line has a branch of almost constant top mass, 168-180 GeV, close to the experimental value, for the large interval 2.5
description: 12 pages, latex, epsfig, 3 figures
Passive and Active Learning of Driver Behavior from Electric Vehicles
Creators: name: Comuni, Federica
name: Mészáros, Christopher
name: Åkerblom, Niklas
name: Chehreghani, Morteza Haghir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Modeling driver behavior provides several advantages in the automotive industry, including prediction of electric vehicle energy consumption. Studies have shown that aggressive driving can consume up to 30% more energy than moderate driving, in certain driving scenarios. Machine learning methods are widely used for driver behavior classification, which, however, may yield some challenges such as sequence modeling on long time windows and lack of labeled data due to expensive annotation. To address the first challenge, passive learning of driver behavior, we investigate non-recurrent architectures such as self-attention models and convolutional neural networks with joint recurrence plots (JRP), and compare them with recurrent models. We find that self-attention models yield good performance, while JRP does not exhibit any significant improvement. However, with the window lengths of 5 and 10 seconds used in our study, none of the non-recurrent models outperform the recurrent models. To address the second challenge, we investigate several active learning methods with different informativeness measures. We evaluate uncertainty sampling, as well as more advanced methods, such as query by committee and active deep dropout. Our experiments demonstrate that some active sampling techniques can outperform random sampling, and therefore decrease the effort needed for annotation.
description: This article has been accepted for publication in IEEE 25th International Conference on Intelligent Transportation Systems (ITSC). This is the author's version which has not been fully edited and content may change prior to final publication. Citation information: DOI 10.1109/ITSC55140.2022.9922012
Strong quantum nonlocality and unextendibility without entanglement in $N$-partite systems with odd $N$
Creators: name: He, Yiyun
name: Shi, Fei
name: Zhang, Xiande
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A set of orthogonal product states is strongly nonlocal if it is locally irreducible in every bipartition, which shows the phenomenon of strong quantum nonlocality without entanglement. Although such a phenomenon has been shown to any three-, four-, and five-partite systems, the existence of strongly nonlocal orthogonal product sets in multipartite systems remains unknown. In this paper, by using a general decomposition of the $N$-dimensional hypercubes, we present strongly nonlocal orthogonal product sets in $N$-partite systems for all odd $N\geq 3$. Based on this decomposition, we give explicit constructions of unextendible product bases in $N$-partite systems for odd $N\geq 3$. Furthermore, we apply our results to quantum secret sharing, uncompletable product bases, and PPT entangled states.
description: 24 pages, 2 figures
Special Convention on Affiliation, April 1980
Creators: name: Association Of University And College Employees
Publisher: name: The University of British Columbia
Year: 2019

description: File contains material from the April 1980 AUCE Provincial Special Convention on Affiliation. Material includes the Affiliation Bulletin 2 (prepared by Local 1's Affiliation Committee and Provincial staff), an information package about various affiliation options, an Affiliation Update from the Provincial Executive dated April 2nd 1980, and an edition of the AUCE Affiliation Inquiry (vol.1, no.4) dated January 9, 1980. File also contains the Provincial newsletter AUCE News: Special 9th Annual Convention Edition (June 1982). Topics discussed include provincial nominations, a proposed budget, and proposed resolutions and amendments.
Linearised Calderón problem: Reconstruction and Lipschitz stability for infinite-dimensional spaces of unbounded perturbations
Creators: name: Garde, Henrik
name: Hyvönen, Nuutti
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35R30, 35R25

description: We investigate a linearised Calderón problem in a two-dimensional bounded simply connected $C^{1,α}$ domain $Ω$. After extending the linearised problem for $L^2(Ω)$ perturbations, we orthogonally decompose $L^2(Ω) = \oplus_{k=0}^\infty \mathcal{H}_k$ and prove Lipschitz stability on each of the infinite-dimensional $\mathcal{H}_k$ subspaces. In particular, $\mathcal{H}_0$ is the space of square-integrable harmonic perturbations. This appears to be the first Lipschitz stability result for infinite-dimensional spaces of perturbations in the context of the (linearised) Calderón problem. Previous optimal estimates with respect to the operator norm of the data map have been of the logarithmic-type in infinite-dimensional settings. The remarkable improvement is enabled by using the Hilbert-Schmidt norm for the Neumann-to-Dirichlet boundary map and its Fréchet derivative with respect to the conductivity coefficient. We also derive a direct reconstruction method that inductively yields the orthogonal projections of a general $L^2(Ω)$ perturbation onto the $\mathcal{H}_k$ spaces, hence reconstructing any $L^2(Ω)$ perturbation.
description: 14 pages
Investigating the Dark Matter Halo of NGC 5128 using a Discrete Dynamical Model
Creators: name: Dumont, Antoine
name: Seth, Anil C.
name: Strader, Jay
name: Sand, David J.
name: Voggel, Karina
name: Hughes, Allison K.
name: Crnojević, Denija
name: Forbes, Duncan A.
name: Mateo, Mario
name: Pearson, Sarah
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As the nearest accessible massive early-type galaxy, NGC 5128 presents an exceptional opportunity to measure dark matter halo parameters for a representative elliptical galaxy. Here we take advantage of rich new observational datasets of large-radius tracers to perform dynamical modeling of NGC 5128, using a discrete axisymmetric anisotropic Jeans approach with a total tracer population of nearly 1800 planetary nebulae, globular clusters, and dwarf satellite galaxies extending to a projected distance of $\sim250$ kpc from the galaxy center. We find that a standard NFW halo provides an excellent fit to nearly all the data, excepting a subset of the planetary nebulae that appear to be out of virial equilibrium. The best-fit dark matter halo has a virial mass of ${\rm M}_{vir}=4.4^{+2.4}_{-1.4}\times10^{12} {\rm M}_{\odot}$, and NGC 5128 appears to sit below the mean stellar mass--halo mass and globular cluster mass--halo mass relations, which both predict a halo virial mass closer to ${\rm M}_{vir} \sim 10^{13} {\rm M}_{\odot}$. The inferred NFW virial concentration is $c_{vir}=5.6^{+2.4}_{-1.6}$, nominally lower than $c_{vir} \sim 9$ predicted from published $c_{vir}$--${\rm M}_{vir}$ relations, but within the $\sim 30\%$ scatter found in simulations. The best-fit dark matter halo constitutes only $\sim10\%$ of the total mass at 1 effective radius but $\sim50\%$ at 5 effective radii. The derived halo parameters are relatively insensitive to reasonable variations in the tracer population considered, tracer anisotropies, and system inclination. Our analysis highlights the value of comprehensive dynamical modeling of nearby galaxies, and the importance of using multiple tracers to allow cross-checks for model robustness.
description: Submitted to A&A on 20.06.2023
Chiroptical response of a single plasmonic nanohelix
Creators: name: Woźniak, Paweł
name: De Leon, Israel
name: Höflich, Katja
name: Haverkamp, Caspar
name: Christiansen, Silke
name: Leuchs, Gerd
name: Banzer, Peter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the chiroptical response of a single plasmonic nanohelix interacting with a weakly-focused circularly-polarized Gaussian beam. The optical scattering at the fundamental resonance is characterized experimentally, and the chiral behavior of the nanohelix is explained based on a multipole analysis. The angularly resolved emission of the excited nanohelix is verified experimentally and it validates the theoretical results. Further, we study the first higher-order resonance and explain the formation of chiral dipoles in both cases.
description: 15 pages, 11 figues
Tests of gauge boson couplings in polarized $e^-γ$ collisions
Creators: name: Raidal, Martti
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Single $W$-boson production in $e^-γ$ collisions with polarized beams is investigated. Helicity amplitudes for general couplings are derived and their properties are discussed. The results are applied to the Standard Model (SM) and the left-right model. In the framework of SM the updated estimates of the measurement precision of photon anomalous coupling parameters $ κ,$ $ λ$ at the NLC with $ \sqrt{s_{ ee }}=500$GeV are obtained. The production of right-handed gauge bosons $ W^-_{ 2 }$ in these collisions is also analysed.
description: 18 pages, latex, 7 figures appended as compressed uuencoded .ps file
Positrons at JLab - Advancing Nuclear Science in Hall B
Creators: name: Burkert, Volker D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this talk I address two high impact physics programs that require the use of polarized and unpolarized positron beams in addition to using electron beams of the same energy. First, I address what will be gained from using positron beams in addition to electron beams in the extraction of the Compton Form Factors (CFFs) and generalized parton distributions (GPDs) from Deeply Virtual Compton Scattering (DVCS) on a proton target. As a second high impact science program I discuss an experimental scenario using unpolarized positrons to measure elastic scattering on protons in an effort to determine definitively the 2-photon exchange contributions in order to resolve a longstanding discrepancy in the determination of the proton's electric and magnetic form factors.
description: 9 pages, 9 figures