cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
2019. L. Nixon, ‘The Early Ottoman Sacred Landscape of Khania’, in C. Morris, G. Papantoniou, A. Vionis (eds), Spatial Analysis of Ritual and Cult in the Mediterranean, Studies in Mediterranean Archaeology, 99-117
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 2019. L. Nixon, ‘The Early Ottoman Sacred Landscape of Khania’, in C. Morris, G. Papantoniou, A. Vionis (eds), Spatial Analysis of Ritual and Cult in the Mediterranean, Studies in Mediterranean Archaeology, 99-117
A Review of Spin Determination at the LHC
Creators: name: Wang, Lian-Tao
name: Yavin, Itay
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Spin measurements are crucial in distinguishing major scenarios of TeV scale new physics once it is discovered at the LHC. We give a brief survey of methods of measuring the spin of new physics particles at the LHC. We focus on the case in which a long lived massive neutral particle is produced at the end of every cascade decay and escape detection. This is the case for R-parity preserving supersymmetry, Little Higgs models with T-parity, extra-dimensional models with KK-parity, and a large class of similar models and scenarios. After briefly commenting on measuring spin by combining mass and rate information, we concentrate on direct measurement by observing angular correlations among decay products of the new physics particles. We survey a wide range of possible channels, discuss the construction of possible correlation variables, and outline experimental challenges. We also briefly survey the Monte-Carlo tools which are useful in studying such correlations.
description: To appear in "Perspectives on the LHC", edited by G. Kane and A. Pierce
Analytical calculation of photon distributions in SPECT projections
Creators: name: Wells, R. Glenn
Publisher: name: University of British Columbia
Year: 2009

description: In this work is presented a method for analytically calculating the distribution of photons detected in SPECT projections. The technique is applicable to sources in homogeneous and non-homogeneous media. The photon distribution (primary, first and second order Compton scatter, and first order Rayleigh scatter) is computed using precalculated camera-dependent lookup tables in conjunction with an attenuation map of the scattering object and a map of the activity distribution. The results of the technique are in excellent agreement with those of Monte Carlo simulation and experimental phantom studies. It has been validated with respect to sources in both homogeneous and non-homogeneous media. Compared with a similar analytical technique, it offers a factor of 40-60 decrease in the calculation time for higher order Compton scatter distributions. For small sources, it improves on computation time required by Monte Carlo simulators by a factor of 20-150. Finally, this method has been applied to the problem of correcting for cross-talk in 1 2 3I-9 9 mTc dual-isotope SPECT studies. It has demonstrated the ability to accurately reproduce the shape of the cross-talk distribution and to reproduce the absolute activity of the sources to within 7%, allowing accurate removal of cross-talk contamination.
2008. L. Nixon, ‘Color and Brilliance: Obsidian, Chert, and Quartz in Sphakia’, In Philip P. Betancourt, Michal C. Nelson, and Hector Williams (eds), Krinoi kai limenes: Studies in Honor of Joseph and Maria Shaw, Prehistory Monographs 22, INSTAP Academic Press, 257–261
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 2008. L. Nixon, ‘Color and Brilliance: Obsidian, Chert, and Quartz in Sphakia’, In Philip P. Betancourt, Michal C. Nelson, and Hector Williams (eds), Krinoi kai limenes: Studies in Honor of Joseph and Maria Shaw, Prehistory Monographs 22, INSTAP Academic Press, 257–261
Extremal problems for GCDs
Creators: name: Green, Ben
name: Walker, Aled
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We prove that if $A \subseteq [X, 2X]$ and $B \subseteq [Y, 2Y]$ are sets of integers such that $\gcd(a,b) \geq D$ for at least $δ|A||B|$ pairs $(a,b) \in A \times B$ then $|A||B| \ll_{\varepsilon} δ^{-2 - \varepsilon} XY/D^2$. This is a new result even when $δ= 1$. The proof uses ideas of Koukoulopoulos and Maynard and some additional combinatorial arguments.
description: One remark added
Ionized carbon around IRC +10216
Creators: name: Reach, William T.
name: Ruaud, Maxime
name: Wiesemeyer, Helmut
name: Riquelme, Denise
name: Tram, Le Ngoc
name: Cernicharo, Jose
name: Smith, Nathan
name: Chambers, Edward T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Asymptotic giant branch (AGB)stars create a rich inventory of molecules in their envelopes as they lose mass during later stages of their evolution. These molecules cannot survive the conditions in interstellar space, where they are exposed to ultraviolet photons of the interstellar radiation field. As a result, daughter molecules are the ones injected into space, and a halo of those molecules is predicted to exist around cool evolved stars. The most abundant molecule in the envelopes other than H2 is CO, which dissociates into C that is rapidly ionized in a halo around the star that is optically thin to the interstellar radiation field. We develop the specific predictions of the ionized carbon halo size and column density for the well-studied, nearby star IRC +10216. We compare those models to observations of the [C II] 157.7 micron far-infrared fine-structure line using SOFIA and Herschel. The combination of bright emission toward the star and upper limits to extended [C II] is inconsistent with any standard model. The presence of [C II] toward the star requires some dissociation and ionization in the inner part of the outflow, possibly due to a hot companion star. The lack of extended [C II] emission requires that daughter products from CO photodissociation in the outer envelope remain cold. The [C II] profile toward the star is asymmetric, with the blue-shifted absorption due to the cold outer envelope.
description: accepted to ApJ (on 2021 Dec 7)
Strongly confined 2D parabolic quantum dot: Biexciton or Quadron?
Creators: name: Quang, Nguyen Hong
name: Huong, Nguyen Que
name: Dung, Tran Anh
name: Thang, Nguyen Toan
name: Tuan, Hoang Anh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Excitonic systems localized in a single InAs/GaAs parabolic quantum dot are studied theoretically using an unrestricted Hartree-Fock method. The binding energies of excitons, conventional biexcitons and quadrons - four particles system of two electrons and two holes, in the ground state have been obtained as functions of magnetic field and confinement potential. It is found that for strong confinement, while the binding energy of biexciton is negative, the binding energy of quadron is positive, suggesting the strong lateral confinement of the parabolic quantum dot supports the formation of a quadron rather than a biexciton.
description: Paper is in press in Physica B: Condensed Matter (date of submission: 15 Nov 2019; accepted for publication: 19 Sep 2020) 14 pages, 6 figures
Accelerating the uptake of the Barcelona Declaration's principles: the catalyst role of networks in the emergence of change and influencing policy agenda setting
Creators: name: Thilly, Ludovic
name: Busse, Beatrix
Publisher: name: Zenodo
Year: 2024
Subjects: Barcelona Declaration on Open Research Information

description: Coimbra Group strongly supports the movement towards open research information with the stated objective to be at the forefront of this cultural transformation. We will bring to the other signatories of the Barcelona Declaration the variety of perspectives and the expertise available in our network of leading European comprehensive universities established across 22 countries and the pioneering role played by some of them.

It is central for Coimbra Group to stress that transitions in how research information is provided must respect the equal importance of all disciplines, including the Social Sciences, Humanities and the Arts. This transition also contributes to advance the agenda towards more open and transparent University rankings. Coimbra Group will continue raising awareness among its members of the importance of open research information and actively promoting dialogue on this important topic. Coimbra Group shall gently nudge its communities by engaging both the management level and the academics and administrative staff active through its thematic Working Groups and by offering its trustful collaborative environment for mutual learning and exchange of experience.

Coimbra Group already initiated a dialogue with the rectors of its 40 member universities on the concrete implications of institutional commitments in Open Science and open research Information, tackling among others what this means in terms of committing resources, of regulations and of change management. The number of Coimbra Group Universities that have already signed the Barcelona Declaration illustrates the network capacity to convince and mobilize the leadership of institutions of high international standard.

Coimbra Group will also build on its advocacy expertise and capacity to influence the European institutions to shape policy changes in this area.
description: Presentation at the Paris Conference on Open Research Information (Sept 23-24 2024) in Session 4: International collaborations
Overdetermined systems, conformal geometry, and the BGG complex
Creators: name: Cap, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35N10, 53A30, 58J10, 58J70, 53A40, 53C15

description: This is an expanded version of a series of two lectures given at the IMA summer program "Symmetries and Overdetermined Systems of Partial Differential Equations". The main part of the article describes the Riemannian version of the prolongation procedure for certain overdetermined system obtained recently in joint work with T.P. Branson, M.G. Eastwood, and A.R. Gover. First a simple special case is discussed, then the (Riemannian) procedure is described in general. The prolongation procedure was derived from a simplification of the construction of Bernstein-Gelfand-Gelfand (BGG) sequences of invariant differential operators for certain geometric structures. The version of this construction for conformal structures is described next. Finally, we discuss generalizations of both the prolongation procedure and the construction of invariant operators to other geometric structures.
description: LaTeX, 24 pages
2003 [2004] J. Moody, H. Lewis Robinson, J. Francis, L. Nixon, 'Ceramic fabric analysis and survey archaeology: The Sphakia Survey', Annual of the British School at Athens 98: 37-105
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 2003 [2004] J. Moody, H. Lewis Robinson, J. Francis, L. Nixon, 'Ceramic fabric analysis and survey archaeology: The Sphakia Survey', Annual of the British School at Athens 98: 37-105
SPHEIR Pedagogical Trainings 2.0 Handouts
Creators: name: Hurley, Walter L
name: Bo-Linn, Cheelan
Publisher: name: Zenodo
Year: 2021

description: A collection of handouts to accompany pedagogical training in higher education in Sierra Leone. They should be used alongside the SPHEIR Pedagogical Trainings 2.0 Videos (https://zenodo.org/record/5783400#.YbqaHNrP1aQ) and the SPHEIR Pedagogical Trainings 1.0 and 2.0 Manual for Workshops (https://zenodo.org/record/5768031#.Ybm-yNrP1aQ).
description: The AQHEd-SL project is funded by the UK's Foreign, Commonwealth & Development Office (FCDO) as part of its SPHEIR (Strategic Partnerships for Higher Education Innovation and Reform) programme to support higher education transformation in focus countries in Sub-Saharan Africa, Asia and the Middle East.
Dissipative light bullets in Kerr cavities: multi-stability, clustering, and rogue waves
Creators: name: Gopalakrishnan, Shyam Sunder
name: Panajotov, Krassimir
name: Taki, Majid
name: Tlidi, Mustapha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We report the existence of stable dissipative light bullets in Kerr cavities. These three-dimensional (3D) localized structures consist of either an isolated light bullet (LB), or could occur in clusters forming well-defined 3D patterns. They can be seen as stationary states in the reference frame moving with the group velocity of light within the cavity. The number of LBs and their distribution in 3D settings are determined by the initial conditions while their maximum peak power remains constant for a fixed value of the system parameters. Their bifurcation diagram allows us to explain this phenomenon as a manifestation of homoclinic snaking for dissipative light bullets. However, when the strength of the injected beam is increased, LBs lose their stability and the cavity field exhibits giant, short living three-dimensional pulses. The statistical characterization of pulse amplitude reveals a long tail probability distribution indicating the occurrence of extreme events; often called rogue waves.
Difference schemes with point symmetries and their numerical tests
Creators: name: Bourlioux, A.
name: Cyr-Gagnon, C
name: Winternitz, P
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70G65; 34K28; 34A34; 65L12

description: Symmetry preserving difference schemes approximating second and third order ordinary differential equations are presented. They have the same three or four-dimensional symmetry groups as the original differential equations. The new difference schemes are tested as numerical methods. The obtained numerical solutions are shown to be much more accurate than those obtained by standard methods without an increase in cost. For an example involving a solution with a singularity in the integration region the symmetry preserving scheme, contrary to standard ones, provides solutions valid beyond the singular point.
description: 26 pages 7 figures
PROPER DIAGNOSIS OF THE DISEASE AND FURTHER TREATMENT OF B12-DEFICIENCY ANEMIA
Creators: name: Hasanov, Alisher
name: Khakimova, Sohiba
Publisher: name: Zenodo
Year: 2024

description: In 12-deficiency anemia, the syndrome of damage to the nervous system dominates, which naturally forces them to seek help from a neurologist. In these cases, the correct diagnosis of the disease and further treatment depend on the latter, since the hasty administration of vitamin B12 very quickly leads to the disappearance of megaloblasts from the bone marrow, which are a pathognomonic sign of percinous anemia. This makes it difficult to recognize the true nature of neurological disorders. Unfortunately, it should be recognized that to date, the neurological manifestations of B12-deficiency anemia have not been systematized and do not have a clear description.
1998. J. Moody, L. Nixon, S. Price, O. Rackham, 'Surveying poleis and larger sites in Sphakia', in W.G. Cavanagh, M. Curtis et al. (eds), Post-Minoan Crete (BSA Studies 2). London: British School at Athens, 87-95
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 1998. J. Moody, L. Nixon, S. Price, O. Rackham, 'Surveying poleis and larger sites in Sphakia', in W.G. Cavanagh, M. Curtis et al. (eds), Post-Minoan Crete (BSA Studies 2). London: British School at Athens, 87-95
On the H$α$ emission from the $β$ Cephei system
Creators: name: Schnerr, R. S.
name: Henrichs, H. F.
name: Oudmaijer, R. D.
name: Telting, J. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Be stars, which are characterised by intermittent emission in their hydrogen lines, are known to be fast rotators. This fast rotation is a requirement for the formation of a Keplerian disk, which in turn gives rise to the emission. However, the pulsating, magnetic B1IV star $β$ Cephei is a very slow rotator that still shows H$α$ emission episodes like in other Be stars, contradicting current theories. We investigate the hypothesis that the H$α$ emission stems from the spectroscopically unresolved companion of $β$ Cep. Spectra of the two unresolved components have been separated in the 6350-6850Årange with spectro-astrometric techniques, using 11 longslit spectra obtained with ALFOSC at the Nordic Optical Telescope, La Palma. We find that the H$α$ emission is not related to the primary in $β$ Cep, but is due to its 3.4 magnitudes fainter companion. This companion has been resolved by speckle techniques, but it remains unresolved by traditional spectroscopy. The emission extends from about $-$400 to +400 km s$^{-1}$. The companion star in its 90-year orbit is likely to be a classical Be star with a spectral type around B6-8. By identifying its Be-star companion as the origin of the H$α$ emission behaviour, the enigma behind the Be status of the slow rotator $β$ Cep has been resolved.
description: 4 pages, 3 figures. Accepted by A&A Letters
The BOSS DR12 Full-Shape Cosmology: $Λ$CDM Constraints from the Large-Scale Galaxy Power Spectrum and Bispectrum Monopole
Creators: name: Philcox, Oliver H. E.
name: Ivanov, Mikhail M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a full $Λ$CDM analysis of the BOSS DR12 dataset, including information from the power spectrum multipoles, the real-space power spectrum, the reconstructed power spectrum and the bispectrum monopole. This is the first analysis to feature a complete treatment of the galaxy bispectrum, including a consistent theoretical model and without large-scale cuts. Unlike previous works, the statistics are measured using window-free estimators: this greatly reduces computational costs by removing the need to window-convolve the theory model. Our pipeline is tested using a suite of high-resolution mocks and shown to be robust and precise, with systematic errors far below the statistical thresholds. Inclusion of the bispectrum yields consistent parameter constraints and shrinks the $σ_8$ posterior by $13\%$ to reach $<5\%$ precision; less conservative analysis choices would reduce the error-bars further. Our constraints are broadly consistent with Planck: in particular, we find $H_0 = 69.6^{+1.1}_{-1.3}\,\mathrm{km}\,\mathrm{s}^{-1}\mathrm{Mpc}^{-1}$, $σ_8 = 0.692^{+0.035}_{-0.041}$ and $n_s=0.870^{+0.067}_{-0.064}$, including a BBN prior on the baryon density. When $n_s$ is set by Planck, we find $H_0 = 68.31^{+0.83}_{-0.86}\,\mathrm{km}\,\mathrm{s}^{-1}\mathrm{Mpc}^{-1}$ and $σ_8 = 0.722^{+0.032}_{-0.036}$. Our $S_8$ posterior, $0.751\pm0.039$, is consistent with weak lensing studies, but lower than Planck. Constraints on the higher-order bias parameters are significantly strengthened from the inclusion of the bispectrum, and we find no evidence for deviation from the dark matter halo bias relations. These results represent the most complete full-shape analysis of BOSS DR12 to-date, and the corresponding spectra will enable a variety of beyond-$Λ$CDM analyses, probing phenomena such as the neutrino mass and primordial non-Gaussianity.
description: 20+8 pages, 12 figures, accepted by Phys. Rev. D. Data available at https://github.com/oliverphilcox/BOSS-Without-Windows and likelihoods available at https://github.com/oliverphilcox/full_shape_likelihoods
2022. J. Francis, E. Nodarou, and J. Moody, ‘The Fabrics of Roman to Early Byzantine Cretan Amphorae from the Sphakia Survey’, in J. E. Francis and M. J. Curtis (eds) Change and Transition on Crete: Interpreting the Evidence from the Hellenistic Through to the Early Byzantine Period. Oxford: Archaeopress, 147-167
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 2022. J. Francis, E. Nodarou, and J. Moody, ‘The Fabrics of Roman to Early Byzantine Cretan Amphorae from the Sphakia Survey’, in J. E. Francis and M. J. Curtis (eds) Change and Transition on Crete: Interpreting the Evidence from the Hellenistic Through to the Early Byzantine Period. Oxford: Archaeopress, 147-167
title: LATIS 4.1: stand van zaken en verbeteringsmogelijkheden
Creators: name: Van Ackere, Samuel
name: De Wit, B.
name: De Maeyer, Philippe
name: Pereira, Fernando
name: Coen, Leen
Publisher: name: Flanders Hydraulics Research
Year: 2021

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen. Volume : 13_159_11 Issue : Pagination : VII, 38 + 4 p. bijl.
Proplyds in the Flame Nebula NGC 2024
Creators: name: Haworth, Thomas J.
name: Kim, Jinyoung S.
name: Winter, Andrew J.
name: Hines, Dean C.
name: Clarke, Cathie J.
name: Sellek, Andrew D.
name: Ballabio, Giulia
name: Stapelfeldt, Karl R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A recent survey of the inner $0.35\times0.35$pc of the NGC 2024 star forming region revealed two distinct millimetre continuum disc populations that appear to be spatially segregated by the boundary of a dense cloud. The eastern (and more embedded) population is $\sim0.2-0.5$Myr old, with an ALMA mm continuum disc detection rate of about $45\,$per cent. However this drops to only $\sim15$per cent in the 1Myr western population. When presenting this result, van Terwisga et al. (2020) suggested that the two main UV sources, IRS 1 (a B0.5V star in the western region) and IRS 2b (an O8V star in the eastern region, but embedded) have both been evaporating the discs in the depleted western population. In this paper we report the firm discovery in archival HST data of 4 proplyds and 4 further candidate proplyds in NGC 2024, confirming that external photoevaporation of discs is occurring. However, the locations of these proplyds changes the picture. Only three of them are in the depleted western population and their evaporation is dominated by IRS 1, with no obvious impact from IRS 2b. The other 5 proplyds are in the younger eastern region and being evaporated by IRS 2b. We propose that both populations are subject to significant external photoevaporation, which happens throughout the region wherever discs are not sufficiently shielded by the interstellar medium. The external photoevaporation and severe depletion of mm grains in the 0.2-0.5Myr eastern part of NGC 2024 would be in competition even with very early planet formation.
description: 14 pages, Accepted for publication in MNRAS
Three-dimensional Modeling of Type Ia Supernova Explosions
Creators: name: Roepke, F. K.
name: Hillebrandt, W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Modeling type Ia supernova (SN Ia) explosions in three dimensions allows to eliminate any undetermined parameters and provides predictive power to simulations. This is necessary to improve the understanding of the explosion mechanism and to settle the question of the applicability of SNe Ia in cosmological distance measurements. Since the models contain no tunable parameters, it is also possible to directly assess their validity on the basis of a comparison with observations. Here, we describe the modeling of SNe Ia as thermonuclear explosions in which the flame after ignition near the center of the progenitor white dwarf star propagates outward in the sub-sonic deflagration mode accelerated by the interaction with turbulence. We explore the capabilities of this model by comparison with observations and show in a preliminary approach, how such a model can be applied to study the origin of the diversity of SNe Ia.
description: 6 pages, 2 figures, in the proceedings of the "International Symposium of Origin of Matter and Evolution of Galaxies 2005" ed. by S. Kubono, W. Aoki, T. Kajino, T. Motobayashi, K. Nomoto
ХИВА - РОССИЯ ЭЛЧИЛИК МУНОСАБАТЛАРИНИНГ АСОСИЙ ЖИҲАТЛАРИ ВА ТАРИХШУНОСЛИК ТАДҚИҚОТЛАРИ
Creators: name: Холмонова, Нодира
Publisher: name: Zenodo
Year: 2024

description: Мақолада Хива хонлиги ва Россия ўртасидаги дипломатик алоқаларнинг бошланиши ва элчиликлар доирасида кўрилган асосий масалалар тадқиқига оид илмий адабиётлар таҳлили амалга оширилган. Империя ва совет даври тадқиқотларида манбалардаги маълумотларни ўз ҳолича талқин қилиш ҳолатлари кўп бўлса, замонавий тадқиқотларда томонлар манфаатлари қайси масалаларга қаратилганлиги, ўша давр сиёсий воқеалари контекстида таҳлил қилинганлиги билан ҳам ажралиб туради. Шунга қарамай, мазкур масала, тарихчилардан муомалага киритилмаган манбаларни таҳилига тортишни талаб қилади.
Integrability vs. Information Loss: A Simple Example
Creators: name: Balasubramanian, Vijay
name: Czech, Bartlomiej
name: Larjo, Klaus
name: Simon, Joan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The half-BPS sector of Yang-Mills theory with 16 supercharges is integrable: there is a set of commuting conserved charges, whose eigenvalues can completely identify a state. We show that these charges can be measured in the dual gravitational description from asymptotic multipole moments of the spacetime. However, Planck scale measurements are required to separate the charges of different microstates. Thus, semiclassical observers making coarse-grained measurements necessarily lose information about the underlying quantum state.
description: 15 pages, LaTeX
GW170817 and GW190814: tension on the maximum mass
Creators: name: Nathanail, Antonios
name: Most, Elias R.
name: Rezzolla, Luciano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The detection of the binary events GW170817 and GW190814 has provided invaluable constraints on the maximum mass of nonrotating configurations of neutron stars, $M_{_{\rm TOV}}$. However, the large differences in the neutron-star masses measured in GW170817 and GW190814 has also lead to a significant tension between the predictions for such maximum masses, with GW170817 suggesting that $M_{_{\rm TOV}} \lesssim 2.3\,M_{\odot}$, and GW190814 requiring $M_{_{\rm TOV}} \gtrsim 2.5\,M_{\odot}$ if the secondary was a (non- or slowly rotating) neutron star at merger. Using a genetic algorithm, we sample the multidimensional space of parameters spanned by gravitational-wave and astronomical observations associated with GW170817. Consistent with previous estimates, we find that all of the physical quantities are in agreement with the observations if the maximum mass is in the range $M_{_{\rm TOV}} = 2.210^{+0.116}_{-0.123} \,M_{\odot}$ within a $2\textrm{-}σ$ confidence level. By contrast, maximum masses with $M_{_{\rm TOV}} \gtrsim 2.5\,M_{\odot}$, not only require efficiencies in the gravitational-wave emission that are well above the numerical-relativity estimates, but they also lead to a significant under-production of the ejected mass. Hence, the tension can be released by assuming that the secondary in GW190814 was a black hole at merger, although it could have been a rotating neutron star before.
description: added references and minor changes; version accepted by ApJL
Near-IR and X-ray Variability of Cyg X-3: Evidence for a Compact IR Source and Complex Wind Structures
Creators: name: Antokhin, Igor I.
name: Cherepashchuk, Anatol M.
name: Antokhina, Eleonora A.
name: Tatarnikov, Andrey M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study near-infrared (JHK) and X-ray light curves of Cyg X-3 obtained with the 2.5-m telescope of the Caucasian Mountain Observatory of MSU SAI and collected from RXTE ASM and MAXI archives. The light curves in the X-ray and IR domains are strongly affected by irregular variations. However, the mean curves are remarkably stable and qualitatively similar in both domains. This means that the IR flux of the system originates not only from the free-free radiation of the WR wind but also from a compact IR source located near the relativistic companion. The shape of the mean X-ray and IR light curves suggest the existence of two additional structures in the WR wind - a bow shock near the relativistic companion and a so-called "clumpy trail" (Vilhu et al. 2013). Modeling of the mean X-ray and IR light curves allowed us to obtain important system parameters: the orbital phase of the superior conjunction of the relativistic companion $ϕ_0=-0.066\pm 0.006$, the orbital inclination angle $i=29.5^\circ\pm 1.2^\circ$, and the WR mass-loss rate $\dot{M} = (0.96\pm 0.14)\times 10^{-5}\rm M_\odot yr^{-1}$. By using relations between $\dot{M}$ and the rate of the period change and between $\dot{M}$ and the WR mass, we estimated the probable mass of the relativistic companion $M_{\rm C}\simeq 7.2\rm M_\odot$ which points towards the black hole hypothesis. However, this estimate is based on the assumption of a smooth WR wind. Considering the uncertainty associated with clumping, the mass-loss rate can be lower which leaves room for the neutron star hypothesis.
description: 23 pages, 11 figures, accepted by ApJ
title: Madness in Socratic philosophy : Xenophon, Plato and Epictetus
Creators: name: Shelton, Matthew James
Publisher: name: University of St Andrews
Year: 2019

description: My central claim is that three Socratic philosophers, Xenophon, Plato and Epictetus, engage with views presented as non-philosophical in their discussions of madness, and this engagement, which has not been sufficiently treated by previous scholarship, plays a key role in each thinker’s distinct rhetorical strategy. Xenophon’s Socrates conserves a popular definition of madness in the Memorabilia, but adds his own account of what is similar to madness. Xenophon does not merely make Socrates transmit conventional views; instead, Socrates’ comparison allows Xenophon to take rhetorical advantage of popular attitudes while enlarging the apotreptic scope of madness. Socrates can use comparisons with madness to deal with a great many people, including his rivals, the natural scientists, and various interlocutors who, unlike the mad, can still benefit from his teaching. In the Phaedrus, Plato’s Socrates employs a concept of madness which, I argue, is applied without equivocation across both of his speeches in the first part of the dialogue. Importantly, Socrates’ inclusion of rational philosophy as a kind of madness is not presented as a distortion of this concept. The connections between madness, love and philosophy are drawn from non-philosophical material, in particular poetry and comedy, and Socrates engages with a popular caricature of the philosopher as eccentric or mad. Instead of rejecting the caricature, Socrates re-evaluates philosophical madness by explaining the transformation of the philosopher’s soul. Epictetus’ view of madness is less compromising, and this is to be expected considering the Stoic doctrine that all who are unwise are mad. Like earlier Stoics, however, Epictetus recognises a surprising range of non-Stoic distinctions within madness. Although he engages with these distinctions, he does so only to undermine them and to bring his audience round to the realisation that they are mad once their own views are applied consistently with respect to Stoic teaching.
Temperature memory and resistive glassy behaviors of a perovskite manganite
Creators: name: Nam, D. N. H.
name: Khien, N. V.
name: Dai, N. V.
name: Hong, L. V.
name: Phuc, N. X.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This paper reports the observations of long-time relaxation, aging, and temperature memory behaviors of resistance and magnetization in the ferromagnetic state of a polycrystalline La0.7Ca0.3Mn0.925Ti0.075O3 compound. The observed glassy dynamics of the electrical transport appears to be magnetically originated and has a very close association with the magnetic glassiness of the sample. Phase separation and strong correlation between magnetic interactions and electronic conduction play the essential roles in producing such a resistive glassiness. We explain the observed effects in terms of a coexistence of two competing thermomagnetic processes, domain growth and magnetic freezing, and propose that hole-doped perovskite manganites can be considered as "resistive glasses".
description: Submitted to PRB
Optimized Loss Functions for Object detection: A Case Study on Nighttime Vehicle Detection
Creators: name: Jiang, Shang
name: Qin, Haoran
name: Zhang, Bingli
name: Zheng, Jieyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Loss functions is a crucial factor that affecting the detection precision in object detection task. In this paper, we optimize both two loss functions for classification and localization simultaneously. Firstly, by multiplying an IoU-based coefficient by the standard cross entropy loss in classification loss function, the correlation between localization and classification is established. Compared to the existing studies, in which the correlation is only applied to improve the localization accuracy for positive samples, this paper utilizes the correlation to obtain the really hard negative samples and aims to decrease the misclassified rate for negative samples. Besides, a novel localization loss named MIoU is proposed by incorporating a Mahalanobis distance between predicted box and target box, which eliminate the gradients inconsistency problem in the DIoU loss, further improving the localization accuracy. Finally, sufficient experiments for nighttime vehicle detection have been done on two datasets. Our results show than when train with the proposed loss functions, the detection performance can be outstandingly improved. The source code and trained models are available at https://github.com/therebellll/NegIoU-PosIoU-Miou.
description: Part D: Journal of Automobile Engineering, 2021
2006. J. Francis, ‘Beehives and Beekeeping in Graeco-Roman Sphakia,’ in Th. Detorakis and S. Papadaki-Oekland (eds) Πεπραγμένα του Θ΄ Διεθνούς Κρητολογικού Συνεδρίου (Ελούντα, 1–6 Οκτωβρίου 2001)/Proceedings of the 9th International Congress of Cretan Studies (Elounda, 1–6 October 2001), Herakleion: Society of Historical Studies, 379–389
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 2006. J. Francis, ‘Beehives and Beekeeping in Graeco-Roman Sphakia,’ in Th. Detorakis and S. Papadaki-Oekland (eds) Πεπραγμένα του Θ΄ Διεθνούς Κρητολογικού Συνεδρίου (Ελούντα, 1–6 Οκτωβρίου 2001)/Proceedings of the 9th International Congress of Cretan Studies (Elounda, 1–6 October 2001), Herakleion: Society of Historical Studies, 379–389
2000. J. Francis, S. Price, J. Moody and L. Nixon, 'Agiasmatsi: a Greek cave sanctuary in Sphakia, SW Crete', Annual of the British School at Athens 95: 427-71
Creators: name: Sphakia Survey
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430305
subject: Classical Greek and Roman history
classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)

description: 2000. J. Francis, S. Price, J. Moody and L. Nixon, 'Agiasmatsi: a Greek cave sanctuary in Sphakia, SW Crete', Annual of the British School at Athens 95: 427-71
Magnetic field-assisted manipulation and entanglement of Si spin qubits
Creators: name: Calderon, M. J.
name: Koiller, Belita
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Architectures of donor-electron based qubits in silicon near an oxide interface are considered theoretically. We find that the precondition for reliable logic and read-out operations, namely the individual identification of each donor-bound electron near the interface, may be accomplished by fine-tuning electric and magnetic fields, both applied perpendicularly to the interface. We argue that such magnetic fields may also be valuable in controlling two-qubit entanglement via donor electron pairs near the interface.
description: 4 pages, 4 figures. 1 ref and 1 footnote added
Going to the light front with contour deformations
Creators: name: Eichmann, Gernot
name: Ferreira, Eduardo
name: Stadler, Alfred
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore a new method to calculate the valence light-front wave function of a system of two interacting particles, which is based on contour deformations combined with analytic continuation methods to project the Bethe-Salpeter wave function onto the light front. In this proof-of-concept study, we solve the Bethe-Salpeter equation for a scalar model and find excellent agreement between the light-front wave functions obtained with contour deformations and those obtained with the Nakanishi method frequently employed in the literature. The contour-deformation method is also able to handle extensions of the scalar model that mimic certain features of QCD such as unequal masses and complex singularities. In principle the method is suitable for computing parton distributions on the light front such as PDFs, TMDs and GPDs in the future.
description: 20 pages, 24 figures. Coincides with the version published in Phys. Rev. D
Letter from Muir, Jephson & Adams (Barristers, Solicitors, etc.) in Calgary, A.B., to James Goldie, March 28, 1911
Creators: name: Muir, Jephson
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to James Goldie from Muir, Jephson & Adams (Barristers, Soliciters, etc.) in Calgary, A.B., dated March 28, 2011, regarding a certificate of title given to the Royal Bank.
Unified description of galactic dynamics and the cosmological constant
Creators: name: Cadoni, Mariano
name: Sanna, Andrea P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the phenomenology of a two-fluid cosmological model, where the field equations of general relativity (GR) are sourced by baryonic and cold dark matter. We find that the model allows for a unified description of small and large scale, late-time cosmological dynamics. Specifically, in the static regime we recover the flattening of galactic rotation curves by requiring the matter density profile to scale as $1/r^2$. The same behavior describes matter inhomogeneities distribution at small cosmological scales. This traces galactic dynamics back to structure formation. At large cosmological scales, we focus on back reaction effects of the spacetime geometry to the presence of matter inhomogeneities. We find that a cosmological constant with the observed order of magnitude, emerges by averaging the back reaction term on spatial scales of order 100 Mpc and it is related in a natural way to matter distribution. This provides a resolution to both the cosmological constant and the coincidence problems and shows the existence of an intriguing link between the small and large scale behavior in cosmology.
description: 4 pages, no figures. Version 2: Typos corrected, small text changes
Green mobility and climate justice: the case of Rotterdam, The Netherlands Read article
Creators: name: Orhan, Rana
name: Andelic, Petra
name: van Kessel, Robin
Publisher: name: figshare
Year: 2021
Subjects: subject: 40104 Climate Change Processes
subject: FOS: Earth and related environmental sciences
subject: 120599 Urban and Regional Planning not elsewhere classified
subject: FOS: Social and economic geography

description: Climate change is the biggest global health threat of this century, imposing major negative health consequences for people, especially those from disadvantaged communities. The European Commission recently adopted a set of proposals within the framework of the European Green Deal to meet its climate goals. To mitigate climate change, reducing air pollution is essential. As people with low socioeconomic status are often asked to make the biggest sacrifice, we aimed to show the case of Rotterdam’s green transport inclusivity by combining data on the number of public transport stops and registered cars in the city’s neighbourhoods with the social score of those neighbourhoods. Our findings showed that the higher the social score of a neighbourhood, the lower the number of public transport stops and the higher the number of cars per household. This resulted in four policy recommendations: (1) Address low green transport use in neighbourhoods with a high social score; (2) Implement proportional financial penalties for non-electric car use; (3) Make public transport accessible for all; (4) Exchange good practices with other cities.
These steps are needed to enhance the climate agenda at the local level. We argue that these recommendations are also relevant for the EU’s agendas on NCDs prevention, economic development and urban planning.
A Census of Above-Horizontal-Branch Stars in Galactic Globular Clusters
Creators: name: Davis, Brian D.
name: Bond, Howard E.
name: Siegel, Michael H.
name: Ciardullo, Robin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have carried out a search for above-horizontal-branch (AHB) stars--objects lying above the horizontal branch (HB) and blueward of the asymptotic giant branch (AGB) in the color-magnitude diagram--in 97 Galactic and seven Magellanic Cloud globular clusters (GCs). We selected AHB candidates based on photometry in the $uBVI$ system, which is optimized for detection of low-gravity stars with large Balmer jumps, in the color range $-0.05\le(B-V)_0\le1.0$. We then used $Gaia$ astrometry and Gaussian-mixture modeling to confirm cluster membership and remove field interlopers. Our final catalog contains 438 AHB stars, classified and interpreted in the context of post-HB evolution as follows: (1) AHB1: 280 stars fainter than $M_V=-0.8$, evolving redward from the blue HB (BHB) toward the base of the AGB. (2) Post-AGB (PAGB): 13 stars brighter than $M_V\simeq-2.75$, departing from the top of the AGB and evolving rapidly blueward. (3) AHB2: 145 stars, with absolute magnitudes between those of the AHB1 and PAGB groups. This last category includes a mixture of objects leaving the extreme BHB and evolving toward the AGB, and brighter ones moving back from the AGB toward higher temperatures. Among the AHB1 stars are 59 RR Lyrae interlopers, observed by chance in our survey near maximum light. PAGB and AHB2 stars (including W Virginis Cepheids) overwhelmingly belong to GCs containing BHB stars, in accordance with predictions of post-HB evolutionary tracks. We suggest that most W Vir variables are evolving toward lower temperatures and are in their first crossings of the instability strip. Non-variable yellow PAGB stars show promise as a Population II standard candle for distance measurement.
description: Accepted by Astrophysical Journal. For machine-readable version of Table 3, see https://www.stsci.edu/~bond/ahb_stars_mrt.txt