cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Origin of isotopic diversity among carbonaceous chondrites
Creators: name: Hellmann, Jan L.
name: Schneider, Jonas M.
name: Wölfer, Elias
name: Drążkowska, Joanna
name: Jansen, Christian A.
name: Hopp, Timo
name: Burkhardt, Christoph
name: Kleine, Thorsten
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Carbonaceous chondrites are some of the most primitive meteorites and derive from planetesimals that formed a few million years after the beginning of the solar system. Here, using new and previously published Cr, Ti, and Te isotopic data, we show that carbonaceous chondrites exhibit correlated isotopic variations that can be accounted for by mixing among three major constituents having distinct isotopic compositions, namely refractory inclusions, chondrules, and CI chondrite-like matrix. The abundances of refractory inclusions and chondrules are coupled and systematically decrease with increasing amount of matrix. We propose that these correlated abundance variations reflect trapping of chondrule precursors, including refractory inclusions, in a pressure maximum in the disk, which is likely related to the water ice line and the ultimate formation location of Jupiter. The variable abundance of refractory inclusions/chondrules relative to matrix is the result of their distinct aerodynamical properties resulting in differential delivery rates and their preferential incorporation into chondrite parent bodies during the streaming instability, consistent with the early formation of matrix-poor and the later accretion of matrix-rich carbonaceous chondrites. Our results suggest that chondrules formed locally from isotopically heterogeneous dust aggregates which themselves derive from a wide area of the disk, implying that dust enrichment in a pressure trap was an important step to facilitate the accretion of carbonaceous chondrite parent bodies or, more generally, planetesimals in the outer solar system.
description: 12 pages, 4 figures, 1 table. Accepted for publication in ApJL
ДИАБЕТИЧЕСКАЯ РЕТИНАЛЬНАЯ НЕЙРОДЕГЕНЕРАЦИЯ СЕТЧАТКИ
Creators: name: Юлдашева, Н.М.
name: Ботирходжа, Л.Б.
name: Туракулова, Ё.Х.
Publisher: name: Zenodo
Year: 2024

description: Согласно данным Международной федерации диабета в мире живут 537 млн пациентов с сахарным диабетом [1]. У пациентов, страдающих сахарным диабетом (СД), риск развития осложнений основного заболевания достаточно высок, в том числе и риск развития диабетической ретинопатии (ДР).
Variant translocation with a deletion of derivative (9q) in a case of Philadelphia chromosome positive (Ph +) essential thrombocythemia (ET), a variant of Chronic Myelogenous Leukemia (CML) with a poor prognosis
Creators: name: Daly, K.
name: Nandula, Subhadra
name: Vundavalli, Murty V.
name: Nichols, G.
Publisher: name: Columbia University
Year: 2005
Subjects: Cytogenetics
Chronic myeloid leukemia
Thrombocytopenia

description: Patients presenting with thrombocytosis require thorough clinical and laboratory evaluation to determine whether they suffer from essential thrombocythemia or another myeloproliferative disorder. This distinction becomes increasingly relevant as targeted agents become available to treat specific myeloproliferative diseases. Cytogenetic testing plays a major role in this analysis. This study presents a patient with Philadelphia chromosome positive (Ph+) thrombocytosis and a cryptic der(9q)t(5;9)t(9;22) not found by conventional cytogenetics, whose disease progressed within 2 years to typical myeloblastic crisis of CML. It discusses the entity of Ph + ET, the utility of molecular cytogenetic testing in the diagnosis of this unusual disease entity and the importance of cytogenetic testing in the prognosis of ET.
Beggar's Opera and Odetta
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Max Goberman comments on the "The Beggar's Opera" by John Gay. "Virgins are like the Fair Flower in its Luster," "Our Polly Is A Sad Slut," "Can Love Be Controlled By Advice," "Golden Slumbers Kiss Your Eyes," "My Heart Was So Free it Roved Like the Bee," "Were I Laid on Greenland's Coast," "Oh What Pain it is To Part," "Let Us Take the Road," "If the Heart of a Man is Depressed with Care," "Before the Barn Door Crowing," "He Who Tastes Woman Ruin Meets," "The First Time at the Looking Glass the Mother Sets her Daughter," and "When You Censure the Age" from "The Beggar's Opera" by John Gay play
Planetary influences on photometric variation of the extreme helium subdwarf KIC10449976
Creators: name: Bear, Ealeal
name: Soker, Noam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We propose that the unstable 3.9days photometric periodicity of the hot subdwarf (sdO) KIC10449976 results from a tidally locked planet that is heated to 5000K by the UV radiation from the hot sdO star. Although the bolometric radiation from the planet is very small relative to that of the star, in the visible band the planet contributes 0.07% of the light, sufficient to explain the observed periodic behavior. In our proposed scenario the stochastic variations in period and light amplitude are attributed to weather on the planet. Namely, streams on the surface and thermal variations in the planet's atmosphere that are driven by the heating and by the planet rotation lead to stochastic changes in the amount of radiation emitted by the planets. We predict that a careful monitoring will reveal a gas giant planet at an orbital separation of 8.3Rsun from KIC10449976.
description: 9 pages; accepted by MNRAS
The search for Nanobubbles by using specular and off-specular Neutron Reflectometry
Creators: name: Gutfreund, Philipp
name: Maccarini, Marco
name: Dennison, Andrew
name: Wolff, Max
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We apply specular and off-specular neutron reflection at the hydrophobic silicon/water interface to check for evidence of nanoscopic air bubbles whose presence is claimed after an ad hoc procedure of solvent exchange. Nanobubbles and/or a depletion layer at the hydrophobic/water interface have long been discussed and generated a plethora of controversial scientific results. By combining neutron reflectometry (NR), off-specular reflectometry (OSS) and grazing incidence small angle neutron scattering (GISANS), we studied the interface between hydrophobized silicon and heavy water before and after saturation with nitrogen gas. Our specular reflectometry results can be interpreted by assuming a sub-molecular sized depletion layer and the off-specular measurements show no change with nitrogen super saturated water. This picture is consistent with the assumption that, following the solvent exchange, no additional nanobubbles are introduced at significant concentrations (if present at all). Furthermore, we discuss the results, in terms of the maximum surface coverage of nanobubbles that could be present on the hydrophobic surface compatibly with the sensitivity limit of these techniques.
A candidate magnetic helium core white dwarf in the globular cluster NGC 6397
Creators: name: Marcano, Manuel Pichardo
name: Sandoval, Liliana E. Rivera
name: Maccarone, Thomas J.
name: Rohrmann, Rene D.
name: Heinke, Craig O.
name: Belloni, Diogo
name: Althaus, Leandro G.
name: Bahramian, Arash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report a peculiar variable blue star in the globular cluster NGC 6397, using Hubble Space Telescope optical imaging. Its position in the colour-magnitude diagrams, and its spectrum, are consistent with this star being a helium core white dwarf (He WD) in a binary system. The optical light curve shows a periodicity at 18.5 hours. We argue that this periodicity is due to the rotation of the WD and possibly due to magnetic spots on the surface of the WD. This would make this object the first candidate magnetic He WD in any globular cluster (GC), and the first candidate magnetic WD in a detached binary system in any GC and one of the few He WDs with a known rotation period and of magnetic nature. Another possibility is that this system is a He WD in a binary system with another WD or another degenerate object, which would make this object one of the few candidate non-accreting double degenerate binaries in any GC.
description: Accepted for publication in MNRAS
Unconventional Magnetic Ground State in Yb$_2$Ti$_2$O$_7$
Creators: name: D'Ortenzio, R. M.
name: Dabkowska, H. A.
name: Dunsiger, S. R.
name: Gaulin, B. D.
name: Gingras, M. J. P.
name: Goko, T.
name: Kycia, J. B.
name: Liu, L.
name: Medina, T.
name: Munsie, T. J.
name: Pomaranksi, D.
name: Ross, K. A.
name: Uemura, Y. J.
name: Williams, T. J.
name: Luke, G. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report low temperature specific heat and muon spin relaxation/rotation ($μ$SR) measurements on both polycrystalline and single crystal samples of the pyrochlore magnet Yb$_2$Ti$_2$O$_7$. This system is believed to possess a spin Hamiltonian supporting a Quantum Spin Ice (QSI) ground state and to display sample variation in its low temperature heat capacity. Our two samples exhibit extremes of this sample variation, yet our $μ$SR measurements indicate a similar disordered low temperature state down to 16 mK in both. We report little temperature dependence to the spin relaxation and no evidence for ferromagnetic order, in contrast to recent reports by Chang \emph{et al.} (Nat. Comm. {\bf 3}, 992 (2012)). Transverse field (TF) $μ$SR measurements show changes in the temperature dependence of the muon Knight shift which coincide with heat capacity anomalies. We are therefore led to propose that Yb$_2$Ti$_2$O$_7$ enters a hidden order ground state below $T_c\sim265$ mK where the nature of the ordered state is unknown but distinct from simple long range order.
description: Accepted for publication in Phys. Rev. B. 5 pages, 4 figures
title: Ανάπτυξη αλγορίθμου βασισμένου στην ασαφή λογική για τον καθορισμό των εκμεταλλεύσιμων λιγνιτικών στρωμάτων
Creators: name: Βασιλείου Ανθούλα
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
MAD2 haplo-insuffciency causes premature anaphase and chromosome instability in mammalian cells
Creators: name: Michel, Loren S.
name: Liberal, Vasco
name: Chatterjee, Anupam
name: Kirchwegger, Regina
name: Pasche, Boris
name: Gerald, William
name: Dobles, Max
name: Sorger, Peter K.
name: Vundavalli, Murty V.
name: Benezra, Robert
Publisher: name: Columbia University
Year: 2001
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Carcinogenesis
subject: Aneuploidy

description: The mitotic checkpoint protein hsMad2 is required to arrest cells in mitosis when chromosomes are unattached to the mitotic spindle. The presence of a single, lagging chromosome is sufficient to activate the checkpoint, producing a delay at the metaphase–anaphase transition until the last spindle attachment is made. Complete loss of the mitotic checkpoint results in embryonic lethality owing to chromosome mis-segregation in various organisms. Whether partial loss of checkpoint control leads to more subtle rates of chromosome instability compatible with cell viability remains unknown. Here we report that deletion of one MAD2 allele results in a defective mitotic checkpoint in both human cancer cells and murine primary embryonic fibroblasts. Checkpoint-defective cells show premature sister-chromatid separation in the presence of spindle inhibitors and an elevated rate of chromosome mis-segregation events in the absence of these agents. Furthermore, Mad2+/- mice develop lung tumours at high rates after long latencies, implicating defects in the mitotic checkpoint in tumorigenesis.
All-silicon quantum light source by embedding an atomic emissive center in a nanophotonic cavity
Creators: name: Redjem, Walid
name: Zhiyenbayev, Yertay
name: Qarony, Wayesh
name: Ivanov, Vsevolod
name: Papapanos, Christos
name: Liu, Wei
name: Jhuria, Kaushalya
name: Balushi, Zakaria Al
name: Dhuey, Scott
name: Schwartzberg, Adam
name: Tan, Liang
name: Schenkel, Thomas
name: Kanté, Boubacar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Silicon is the most scalable optoelectronic material, and it has revolutionized our lives in many ways. The prospect of quantum optics in silicon is an exciting avenue because it has the potential to address the scaling and integration challenges, the most pressing questions facing quantum science and technology. We report the first all-silicon quantum light source based on a single atomic emissive center embedded in a silicon-based nanophotonic cavity. We observe a more than 30-fold enhancement of luminescence, a near unity atom-cavity coupling efficiency, and an 8-fold acceleration of the emission from the quantum center. Our work opens avenues for large-scale integrated all-silicon cavity quantum electrodynamics and quantum photon interfaces with applications in quantum communication, sensing, imaging, and computing.
title: Ευστάθεια υπόγειου θαλάμου στο κοίτασμα μαρμάρου Διονύσου Πεντέλης
Creators: name: Ασβεστάς Γεώργιος
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
X(3872) and its production at hadron colliders
Creators: name: Meng, Ce
name: Han, Hao
name: Chao, Kuang-Ta
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the production cross sections of $X(3872)$ at the LHC and Tevatron at NLO in $α_s$ in NRQCD by assuming that the short-distance production proceeds dominantly through its $χ_{c1}'$ component in our $χ_{c1}'\mbox{-}D^0\bar{D}^{*0}$ mixing model for $X(3872)$. The outcomes of the fits to the CMS $p_T$ distribution can well account for the recent ATLAS data in a much larger range of transverse momenta ($10~\mbox{GeV}
description: Version published in PRD. More explanations added for the LHCb data. More references added for recent experimental and theoretical results: the ATLAS measurement on the X(3872) pT distribution in 10-70 GeV; the LHCb measurement on the X(3872) radiative decays; the lattice calculation on X(3872); the small $x$ resummation method, etc. No changes for the calculated result and the conclusion
title: Εντατικοπαραμορφωσιακή ανάλυση συστημάτων υπογείων ανοιγμάτων με τη μέθοδο των συνοριακών στοιχείων
Creators: name: Ξηρουδάκης Γεώργιος
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
Modulation of the Blazhko Cycle in LS Her
Creators: name: Wilhelm, Ronald
name: Carrell, Kenneth
name: Means, Hannah H.
name: Popowicz, Adam
name: Bernacki, Krzysztof
name: Frackiewicz, Mariusz
name: Szczepanski, Marek
name: Dustor, Adam
name: Lockett, Jaylon
name: Taylor, Jill
name: Youngquist, Stasha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present analysis of the RR Lyrae star, LS Her and confirm the previously reported modulation to its Blazhko cycles. We performed Fourier analysis on two sectors (Sector 24 & 25) of data from the Transiting Exoplanet Survey Satellite (TESS) spanning 53 days. We find LS Her to have a primary pulsation period of 0.2308 d and a Blazhko period of 12.7 d in keeping with previously reported results. We also identified side-band frequencies around the Blazhko multiplets suggesting the Blazhko cycle is modulated on a time scale of 112 days. Analysis of the Blazhko effect using the TESS data clearly shows a changing amplitude and phase throughout the four Blazhko cycles. We compared our modeled results, which were based on our TESS frequency analysis, to TESS data (Sector 51) taken ~700 days later and found our modulation model was not a good representation of the data. We then coupled our TESS analysis with the modulation frequency results from Wils et al. (MNRAS 387 (2008) 783-787) and found excellent agreement with the Sector 51 data. To further test this result we obtained ground-based, V-magnitude observations of LS Her in the summer of 2022. This data also showed excellent agreement with our coupled modulation model. We have verified that LS Her is a Blazhko star with a modulated Blazhko period of 109 days, stability over the 862 days of observations, and possible stability lasting over 15 years. We discuss the ramifications of the modulation for other Blazhko stars that show Blazhko effect changes over time.
description: 9 pages, 10 figures
Ultra-light axions and the $S_8$ tension: joint constraints from the cosmic microwave background and galaxy clustering
Creators: name: Rogers, Keir K.
name: Hložek, Renée
name: Laguë, Alex
name: Ivanov, Mikhail M.
name: Philcox, Oliver H. E.
name: Cabass, Giovanni
name: Akitsu, Kazuyuki
name: Marsh, David J. E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We search for ultra-light axions as dark matter (DM) and dark energy particle candidates, for axion masses $10^{-32}\,\mathrm{eV} \leq m_\mathrm{a} \leq 10^{-24}\,\mathrm{eV}$, by a joint analysis of cosmic microwave background (CMB) and galaxy clustering data -- and consider if axions can resolve the tension in inferred values of the matter clustering parameter $S_8$. We give legacy constraints from Planck 2018 CMB data, improving 2015 limits on the axion density $Ω_\mathrm{a} h^2$ by up to a factor of three; CMB data from the Atacama Cosmology Telescope and the South Pole Telescope marginally weaken Planck bounds at $m_\mathrm{a} = 10^{-25}\,\mathrm{eV}$, owing to lower (and theoretically-consistent) gravitational lensing signals. We jointly infer, from Planck CMB and full-shape galaxy power spectrum and bispectrum data from the Baryon Oscillation Spectroscopic Survey (BOSS), that axions are, today, $< 10\%$ of the DM for $m_\mathrm{a} \leq 10^{-26}\,\mathrm{eV}$ and $< 1\%$ for $10^{-30}\,\mathrm{eV} \leq m_\mathrm{a} \leq 10^{-28}\,\mathrm{eV}$. BOSS data strengthen limits, in particular at higher $m_\mathrm{a}$ by probing high-wavenumber modes ($k < 0.4 h\,\mathrm{Mpc}^{-1}$). BOSS alone finds a preference for axions at $2.7 σ$, for $m_\mathrm{a} = 10^{-26}\,\mathrm{eV}$, but Planck disfavours this result. Nonetheless, axions in a window $10^{-28}\,\mathrm{eV} \leq m_\mathrm{a} \leq 10^{-25}\,\mathrm{eV}$ can improve consistency between CMB and galaxy clustering data, e.g., reducing the $S_8$ discrepancy from $2.7 σ$ to $1.6 σ$, since these axions suppress structure growth at the $8 h^{-1}\,\mathrm{Mpc}$ scales to which $S_8$ is sensitive. We expect improved constraints with upcoming high-resolution CMB and galaxy lensing and future galaxy clustering data, where we will further assess if axions can restore cosmic concordance.
description: 53 pages, 22 figures. Minor changes to match version accepted for publication in JCAP
Uncertainty in Online Experiments with Dependent Data: An Evaluation of Bootstrap Methods
Creators: name: Bakshy, Eytan
name: Eckles, Dean
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: G.3

description: Many online experiments exhibit dependence between users and items. For example, in online advertising, observations that have a user or an ad in common are likely to be associated. Because of this, even in experiments involving millions of subjects, the difference in mean outcomes between control and treatment conditions can have substantial variance. Previous theoretical and simulation results demonstrate that not accounting for this kind of dependence structure can result in confidence intervals that are too narrow, leading to inaccurate hypothesis tests. We develop a framework for understanding how dependence affects uncertainty in user-item experiments and evaluate how bootstrap methods that account for differing levels of dependence perform in practice. We use three real datasets describing user behaviors on Facebook - user responses to ads, search results, and News Feed stories - to generate data for synthetic experiments in which there is no effect of the treatment on average by design. We then estimate empirical Type I error rates for each bootstrap method. Accounting for dependence within a single type of unit (i.e., within-user dependence) is often sufficient to get reasonable error rates. But when experiments have effects, as one might expect in the field, accounting for multiple units with a multiway bootstrap can be necessary to get close to the advertised Type I error rates. This work provides guidance to practitioners evaluating large-scale experiments, and highlights the importance of analysis of inferential methods for dependence structures common to online systems.
description: 9 pages, 5 figures. This version corrects an error in one set of simulations in Section 3.4 / Figure 4. All other results are unaffected
Effects of Magnetic Fields on Gas Dynamics and Star Formation in Nuclear Rings
Creators: name: Moon, Sanghyuk
name: Kim, Woong-Tae
name: Kim, Chang-Goo
name: Ostriker, Eve C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Nuclear rings at the centers of barred galaxies are known to be strongly magnetized. To explore the effects of magnetic fields on star formation in these rings and nuclear gas flows, we run magnetohydrodynamic simulations in which there is a temporally-constant magnetized inflow to the ring, representing a bar-driven inflow. The mass inflow rate is $1\,M_\odot\,\mathrm{yr}^{-1}$, and we explore models with a range of field strength in the inflow. We adopt the TIGRESS framework developed by Kim & Ostriker to handle radiative heating and cooling, star formation, and resulting supernova (SN) feedback. We find that magnetic fields are efficiently amplified in the ring due to rotational shear and SN feedback. Within a few $100\,\mathrm{Myr}$, the turbulent component $B_\mathrm{trb}$ in the ring saturates at $\sim 35\,μ\mathrm{G}$ (in rough equipartition with the turbulent kinetic energy density), while the regular component $B_\mathrm{reg}$ exceeds $50\,μ\mathrm{G}$. Expanding superbubbles created by clustered SN explosions vertically drag predominantly-toroidal fields from near the midplane to produce poloidal fields in high-altitude regions. The growth of magnetic fields greatly suppresses star formation at late times. Simultaneously, strong magnetic tension in the ring drives radially inward accretion flows from the ring to form a circumnuclear disk in the central region; this feature is absent in the unmagnetized model.
description: 29 pages, 17 figures, accepted for publication in ApJ
title: Συμβολή των γεωγραφικών συστημάτων στην ερμηνεία γεωφυσικών δεδομένων από τον αρχαιολογικό χώρο της Ιτάνου
Creators: name: Μπούτζουκα Ζαχαρούλα
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
title: Εξοικονόμηση ενέργειας και τεχνικές παρακολούθησης λειτουργίας σε αντλιοστάσια. Δυνατότητα λειτουργίας τους ως ευέλικτα φορτία
Creators: name: Σακκάς Αθανάσιος
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Editorial: Vollstreckungsimmunität für Kunstleihgaben ausländischer Staaten: Österreichs Gerichte entscheiden in zweiter Instanz
Creators: name: Weller, Matthias
Publisher: name: Kunstrechtsspiegel
Year: 2017

description: -
description: Kunstrechtsspiegel, Nr. 4 (2011): Kunstrechtsspiegel
Chiral condensate from the twisted mass Dirac operator spectrum
Creators: name: Cichy, Krzysztof
name: Garcia-Ramos, Elena
name: Jansen, Karl
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present the results of our computation of the chiral condensate with $N_f=2$ and $N_f=2+1+1$ flavours of maximally twisted mass fermions. The condensate is determined from the Dirac operator spectrum, applying the spectral projector method proposed by Giusti and Luscher. We use 3 lattice spacings and several quark masses at each lattice spacing to perform the chiral and continuum extrapolations. We study the effect of the dynamical strange and charm quarks by comparing our results for $N_f=2$ and $N_f=2+1+1$ dynamical flavours.
description: Final version accepted for publication in JHEP, 25 pages, 6 figures
A Survey for High-redshift Gravitationally Lensed Quasars and Close Quasars Pairs. I. the Discoveries of an Intermediately-lensed Quasar and a Kpc-scale Quasar Pair at $z\sim5$
Creators: name: Yue, Minghao
name: Fan, Xiaohui
name: Yang, Jinyi
name: Wang, Feige
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first results from a new survey for high-redshift $(z\gtrsim5)$ gravitationally lensed quasars and close quasar pairs. We carry out candidate selection based on the colors and shapes of objects in public imaging surveys, then conduct follow-up observations to confirm the nature of high-priority candidates. In this paper, we report the discoveries of J0025--0145 ($z=5.07$) which we identify as an {intermediately-lensed quasar, and J2329--0522 ($z=4.85$) which is a kpc-scale close quasar pair. The {\em Hubble Space Telescope (HST)} image of J0025--0145 shows a foreground lensing galaxy located $0\farcs6$ away from the quasar. However, J0025--0145 does not exhibit multiple lensed images of the quasar, and we identify J0025--0145 as an intermediate lensing system (a lensing system that is not multiply imaged but has a significant magnification). The spectrum of J0025--0145 implies an extreme Eddington ratio if the quasar luminosity is intrinsic, which could be explained by a large lensing magnification. The {\em HST} image of J0025--0145 also indicates a tentative detection of the quasar host galaxy in rest-frame UV, illustrating the power of lensing magnification and distortion in studies of high-redshift quasar host galaxies. J2329--0522 consists of two resolved components with significantly different spectral properties, and a lack of lensing galaxy detection under sub-arcsecond seeing. We identify it as a close quasar pair, which is the highest confirmed kpc-scale quasar pair to date. We also report four lensed quasars and quasar pairs at $2
description: 23 pages, 10 figures, 6 tables. Accepted by the Astronomical Journal
A high-resolution map of human chromosome 12
Creators: name: Montgomery, Kate
name: Lee, Eunice
name: Miller, Ashley
name: Lau, Stephanie
name: Shim, Cecilia
name: Decker, Jeremy
name: Chiu, Denise
name: Emerling, Suzanne
name: Sekhon, Mandeep
name: Kim, Rachel
name: Lenz, Jack
name: Han, Jinghua
name: Ioshikhes, Ilya
name: Renault, Beatrice
name: Marondel, Ivonne
name: Yoon, Sung-Joo Kim
name: Song, Kyuyoung
name: Vundavalli, Murty V.
name: Scherer, Steven
name: Yonescu, Raluca
name: Kirsch, Ilan
name: Ried, Thomas
name: McPherson, John
name: Gibbs, Richard
name: Kucherlapati, Raju
Publisher: name: Columbia University
Year: 2001
Subjects: subject: Genomics
subject: Genetics
subject: FOS: Biological sciences
subject: Gene mapping
subject: Human gene mapping

description: Our sequence-tagged site-content map of chromosome 12 is now integrated with the whole-genome fingerprinting effort. It provides accurate and nearly complete bacterial clone coverage of chromosome 12. We propose that this integrated mapping protocol serves as a model for constructing physical maps for entire genomes.
CALPHAD-based modelling of the temperature-composition-structure relationship during physical vapor deposition of Mg-Ca thin films
Creators: name: Keuter, Philipp
name: Baben, Moritz to
name: Aliramaji, Shamsa
name: Schneider, Jochen M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The temperature-dependent composition and phase formation during physical vapor deposition (PVD) of Mg-Ca thin films is modelled using a CALPHAD-based approach. Considering the Mg and Ca sublimation fluxes calculated based on the vapor pressure obtained by employing equilibrium thermochemical calculations, experimentally observed synthesis temperature trends in thin film composition and phase formation are reproduced. The model is a significant step towards understanding how synthesis parameters control composition and thereby phase formation in PVD of metals with high vapor pressures.
description: 10 pages, 3 figures
Studying the resonance production cross-section of the heavy vectors within Heavy Vector Triplet model
Creators: name: Obikhod, T. V.
name: Petrenko, I. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of TeV-scale extensions of the Standard Model both the experimental searches and the construction of phenomenological models for the new heavy bosons searches are used by us. Heavy particles predicted by a the Simplified Model constructed to describe only the on-shell resonance, have to be compared with LHC data. Heavy bosons have certain properties that can be calculated within the Heavy Vector Triplet model using the MadGraph computer program. We have calculated the production cross sections of heavy particles using the experimental constraints in the parameter space ($c_H$, $c_F$) imposed on the benchmark scenario. The nature of the functional dependence of the cross section at the basic parameters of the model on the mass of the new boson, as well as the mechanism for the heavy particle production is studied.
description: 9 pages, 9 figures
Weil-Petersson Teichmüller space
Creators: name: Shen, Yuliang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C62, 30F60, 32G15

description: The paper presents some recent results on the Weil-Petersson geometry theory of the universal Teichmüller space, a topic which is important in Teichmüller theory and has wide applications to various areas such as mathematical physics, differential equation and computer vision. \noindent (1) It is shown that a sense-preserving homeomorphism $h$ on the unit circle belongs to the Weil-Petersson class, namely, $h$ can be extended to a quasiconformal mapping to the unit disk whose Beltrami coefficient is squarely integrable in the Poincaré metric if and only if $h$ is absolutely continuous such that $\log h'$ belongs to the Sobolev class $H^{\frac 12}$. This solves an open problem posed by Takhtajan-Teo [TT2] in 2006 and investigated later by Figalli [Fi], Gay-Balmaz-Marsden-Ratiu ([GMR], [GR]) and others. \noindent The intrinsic characterization (1) of the Weil-Petersson class has the following applications which are also explored in this paper: \noindent (2) It is proved that there exists a quasisymmetric homeomorphism of the Weil-Petersson class which belongs neither to the Sobolev class $H^{\frac 32}$ nor to the Lipschitz class $Λ^1$, which was conjectured very recently by Gay-Balmaz-Ratiu [GR] when studying the classical Euler-Poincaré equation in the new setting that the involved sense-preserving homeomorphisms on the unit circle belong to the Weil-Petersson class. \noindent (3) It is proved that the flows of the $H^{\frac 32}$ vector fields on the unit circle are contained in the Weil-Petersson class, which was also conjectured by Gay-Balmaz-Ratiu [GR] during their above mentioned research. \noindent (4) A new metric is introduced on the Weil-Petersson Teichmüller space and is shown to be topologically equivalent to the Weil-Petersson metric.
description: 33 pages
Computational Spectral Imaging: A Contemporary Overview
Creators: name: Bacca, Jorge
name: Martinez, Emmanuel
name: Arguello, Henry
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Spectral imaging collects and processes information along spatial and spectral coordinates quantified in discrete voxels, which can be treated as a 3D spectral data cube. The spectral images (SIs) allow identifying objects, crops, and materials in the scene through their spectral behavior. Since most spectral optical systems can only employ 1D or maximum 2D sensors, it is challenging to directly acquire the 3D information from available commercial sensors. As an alternative, computational spectral imaging (CSI) has emerged as a sensing tool where the 3D data can be obtained using 2D encoded projections. Then, a computational recovery process must be employed to retrieve the SI. CSI enables the development of snapshot optical systems that reduce acquisition time and provide low computational storage costs compared to conventional scanning systems. Recent advances in deep learning (DL) have allowed the design of data-driven CSI to improve the SI reconstruction or, even more, perform high-level tasks such as classification, unmixing, or anomaly detection directly from 2D encoded projections. This work summarises the advances in CSI, starting with SI and its relevance; continuing with the most relevant compressive spectral optical systems. Then, CSI with DL will be introduced, and the recent advances in combining the physical optical design with computational DL algorithms to solve high-level tasks.
Multi-dimensional concept discovery (MCD): A unifying framework with completeness guarantees
Creators: name: Vielhaben, Johanna
name: Blücher, Stefan
name: Strodthoff, Nils
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The completeness axiom renders the explanation of a post-hoc XAI method only locally faithful to the model, i.e. for a single decision. For the trustworthy application of XAI, in particular for high-stake decisions, a more global model understanding is required. Recently, concept-based methods have been proposed, which are however not guaranteed to be bound to the actual model reasoning. To circumvent this problem, we propose Multi-dimensional Concept Discovery (MCD) as an extension of previous approaches that fulfills a completeness relation on the level of concepts. Our method starts from general linear subspaces as concepts and does neither require reinforcing concept interpretability nor re-training of model parts. We propose sparse subspace clustering to discover improved concepts and fully leverage the potential of multi-dimensional subspaces. MCD offers two complementary analysis tools for concepts in input space: (1) concept activation maps, that show where a concept is expressed within a sample, allowing for concept characterization through prototypical samples, and (2) concept relevance heatmaps, that decompose the model decision into concept contributions. Both tools together enable a detailed understanding of the model reasoning, which is guaranteed to relate to the model via a completeness relation. This paves the way towards more trustworthy concept-based XAI. We empirically demonstrate the superiority of MCD against more constrained concept definitions.
description: v2: Version published by Transactions on Machine Learning Research in 2023 (TMLR ISSN 2835-8856) https://openreview.net/forum?id=KxBQPz7HKh. 25 pages, 11 figures. This work builds on an earlier manuscript (arXiv:2203.06043) and crucially extends it. Code is available at https://github.com/jvielhaben/MCD-XAI
On irreducible maps and slices
Creators: name: Bouttier, J.
name: Guitter, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the problem of enumerating d-irreducible maps, i.e. planar maps whose all cycles have length at least d, and such that any cycle of length d is the boundary of a face of degree d. We develop two approaches in parallel: the natural approach via substitution where these maps are obtained from general maps by a replacement of all d-cycles by elementary faces, and a bijective approach via slice decomposition which consists in cutting the maps along shortest paths. Both lead to explicit expressions for the generating functions of d-irreducible maps with controlled face degrees, summarized in some elegant "pointing formula". We provide an equivalent description of d-irreducible slices in terms of so-called d-oriented trees. We finally show that irreducible maps give rise to a hierarchy of discrete integrable equations which include equations encountered previously in the context of naturally embedded trees.
description: 65 pages, 21 figures, accepted version (changes since v1: new section 9.3 added, figure 13 modified, 2 extra references, and many smaller improvements)
Drei unbekannte Blätter aus der Handschriftt der 24 Alten des Otto von Passau
Creators: name: Wiegand, Eberhard
Publisher: name: Anzeiger des Germanischen Nationalmuseums
Year: 2017

description: Anzeiger des Germanischen Nationalmuseums, 1936-1939: Anzeiger des Germanischen Nationalmuseums
On the Interpretation of the Scalings of Density Fluctuations from In-situ Solar Wind Observations: Insights from 3D Turbulence Simulations
Creators: name: Du, Senbei
name: Li, Hui
name: Gan, Zhaoming
name: Fu, Xiangrong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar wind turbulence is often perceived as weakly compressible and the density fluctuations remain poorly understood both theoretically and observationally. Compressible magnetohydrodynamic simulations provide useful insights into the nature of density fluctuations. We discuss a few important effects related to 3D simulations of turbulence and in-situ observations. The observed quantities such as the power spectrum and variance depend on the angle between the sampling trajectory and the mean magnetic field due to anisotropy of the turbulence. The anisotropy effect is stronger at smaller scales and lower plasma beta. Additionally, in-situ measurements tend to exhibit a broad range of variations, even though they could be drawn from the same population with the defined averages, so a careful averaging may be needed to reveal the scaling relations between density variations and other turbulence quantities such as turbulent Mach number from observations.
description: 11 pages, 5 figures, accepted by The Astrophysical Journal
Die Arretinischen Töpfereien
Creators: name: Ihm, Max
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 102 (1898): Bonner Jahrbücher : Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
title: Μια ανάλυση της ποιότητας ζωής και της ποιότητας στην εργασία
Creators: name: Μυκονιάτη Αντωνία
Publisher: name: Technical University of Crete
Year: 2008

description:  Εισαγωγή στις έννοιες ποιότητας ζωής και ποιότητα στην εργασία  2. Συνθήκες ανάπτυξης του καπιταλιστικού τρόπου παραγωγής και συνθήκες εργασίας  3. Ζητήματα και πλευρές της ποιότητας της εργασίας και της ποιότητας ζωής  4. Ειδικά θέματα για τις συνθήκες εργασίας και νέοι προσανατολισμοί για την ποιότητα ζωής
Wikidata as a tool to connect researchers
Creators: name: Mietchen, Daniel
name: Poelen, Jorrit
Publisher: name: Zenodo
Year: 2022
Subjects: Wikidata

description: This repo hosts materials for a presentation at the Ronin Institute's Lightning talks on 8 December 2022. It contains the slides in various formats as well as a pre-recording of the talk with some bonus slides and an attempted demo of the scholarly visualization tool Scholia. This attempt was only semi-successful in that the video was recorded with default settings to capture a single window rather than the entire screen, so once the slide presentation is finished, the audio continues, yet the only thing visible is how the mouse cursor moves over a black screen. Perhaps the best you can make out of this is to take this as a podcast and to start exploring Scholia by yourself. If you want, you can use the same starting page - the topic profile for urban traits, which sits at https://scholia.toolforge.org/topic/Q113468348 . The video is also available on YouTube via https://youtu.be/TeT-8NnB4zI , without the demo part. The title of the presentation is: Wikidata as a tool to connect researchers The abstract: Wikidata, a cousin of Wikipedia, captures millions of structured, and interconnected, data entries on any domain of knowledge. We used Wikidata to help biologists connect their works on biological traits. At a Aug 2022 workshop at iDiv in Leipzig, Germany, we showed a prototype connecting people, their study organisms, and publications. This prototype helps answer questions like: What other researchers study the hairiness of bees (Apidae)? Or, what conference do bee researchers attend? And, which tools do bee researchers use in their scientific works? Perhaps this prototype can inspire Ronin scholars to explore shared interests, research topics, methods, and co-collaborators.
 The presentation was first given at the Open Traits Network Workshop in August 2022, as per Exploring Traits of the Open Traits Network (OTN). https://doi.org/10.5281/zenodo.6863639 .
The trousers fracture test for viscoelastic elastomers
Creators: name: Shrimali, Bhavesh
name: Lopez-Pamies, Oscar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Shrimali and Lopez-Pamies (2023) have recently shown that the Griffith criticality condition that governs crack growth in viscoelastic elastomers can be reduced to a fundamental form that involves exclusively the intrinsic fracture energy $G_c$ of the elastomer and, in so doing, they have brought resolution to the complete description of the historically elusive notion of critical tearing energy $T_c$. The purpose of this paper -- which can be viewed as the third installment of the series started by Shrimali and Lopez-Pamies (2023) -- is to make use of this fundamental form to explain one of the most popular fracture tests for probing the growth of cracks in viscoelastic elastomers, the trousers test.
Towards a liquid-state theory for active matter
Creators: name: Li, Yuting Irene
name: Garcia-Millan, Rosalba
name: Cates, Michael E.
name: Fodor, Étienne
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In equilibrium, the collective behaviour of particles interacting via steep, short-ranged potentials is well captured by the virial expansion of the free energy at low density. Here, we extend this approach beyond equilibrium to the case of active matter with self-propelled particles. Given that active systems do not admit any free-energy description in general, our aim is to build the dynamics of the coarse-grained density from first principles without any equilibrium assumption. Starting from microscopic equations of motion, we obtain the hierarchy of density correlations, which we close with an ansatz for the two-point density valid in the dilute regime at small activity. This closure yields the nonlinear dynamics of the one-point density, with hydrodynamic coefficients depending explicitly on microscopic interactions, by analogy with the equilibrium virial expansion. This dynamics admits a spinodal instability for purely repulsive interactions, a signature of motility-induced phase separation. Therefore, although our approach should be restricted to dilute, weakly-active systems a priori, it actually captures the features of a broader class of active matter.
description: 2 figures
Hengstenberg, Hermann, Das ehemalige Herzogtum Berg und seine nächste Umgebung, Elberfeld 1897
Creators: name: Tille, Armin
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Hengstenberg, Hermann: Das ehemalige Herzogtum Berg und seine nächste Umgebung. Beschreibende und geschichtliche Übersicht. Zweite durchgesehene und vermehrte Auflage. Elberfeld 1897. B. Hartmann. 8°. 137 S.
description: Bonner Jahrbücher, Bd. 104 (1899): Bonner Jahrbücher : Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
title: Ανάλυση καδμίου στους ψύκτες με τη χρήση φορητού συστήματος φθορισμομετρίας ακτίνων X
Creators: name: Μαρκογιαννάκης Γιάννης
Publisher: name: Technical University of Crete
Year: 2008

description:  Εισαγωγικό σημείωμα  2. Γενικό μέρος  3. Φασματοσκοπία φθορισμού ακτινών-Χ  4. Φορητό σύστημα XRF  5. Πειραματικό μέρος  6. Συζήτηση-συμπεράσματα  7. Επίλογος  8. Φάσματα
The Detection of Hot Molecular Cores in the Small Magellanic Cloud
Creators: name: Shimonishi, Takashi
name: Tanaka, Kei E. I.
name: Zhang, Yichen
name: Furuya, Kenji
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the first detection of hot molecular cores in the Small Magellanic Cloud, a nearby dwarf galaxy with 0.2 solar metallicity. We observed two high-mass young stellar objects in the SMC with ALMA, and detected emission lines of CO, HCO+, H13CO+, SiO, H2CO, CH3OH, SO, and SO2. Compact hot-core regions are traced by SO2, whose spatial extent is about 0.1 pc, and the gas temperature is higher than 100 K based on the rotation diagram analysis. In contrast, CH3OH, a classical hot-core tracer, is dominated by extended (0.2-0.3 pc) components in both sources, and the gas temperature is estimated to be 39+-8 K for one source. Protostellar outflows are also detected from both sources as high-velocity components of CO. The metallicity-scaled abundances of SO2 in hot cores are comparable among the SMC, LMC, and Galactic sources, suggesting that the chemical reactions leading to SO2 formation would be regulated by elemental abundances. On the other hand, CH3OH shows a large abundance variation within SMC and LMC hot cores. The diversity in the initial condition of star formation (e.g., degree of shielding, local radiation field strength) may lead to the large abundance variation of organic molecules in hot cores. This work, in conjunction with previous hot-core studies in the LMC and outer/inner Galaxy, suggests that the formation of a hot core would be a common phenomenon during high-mass star formation across the metallicity range of 0.2-1 solar metallicity. High-excitation SO2 lines will be a useful hot-core tracer in the low-metallicity environments of the SMC and LMC.
description: Accepted for publication in ApJL, 17 pages, 8 figures, 4 tables. arXiv admin note: text overlap with arXiv:2109.11123
title: Πειραματική διερεύνηση θέρμανσης υλικών λόγω απορρόφησης μικροκυμάτων που εκπέμπουν τα κινητά
Creators: name: Μπατσάκη Ελέσσα
Publisher: name: Technical University of Crete
Year: 2008

description:  Ηλεκτρομαγνητική ακτινοβολία  2. Κεραίες  3. Κινητή τηλεφωνία  4. Βιολογικές επιδράσεις  5. Συντελεστής απορρόφησης υλικών  6. Πειραματική διάταξη  7. Μετρήσεις  8. Διεργασίες απολαβής και απωλειών ενέργειας  9. Μοντελοποίηση  10. Σύγκριση θεωρίας με πείραμα
Siegfried Kurz, Die Baubefunde vom Runden Berg bei Bad Urach
Creators: name: Gärtner, Tobias
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Siegfried Kurz, Die Baubefunde vom Runden Berg bei Bad Urach. Materialhefte zur Archäologie in Baden-Württemberg, Band 89. Verlag Konrad Theiss, Stuttgart 2009. 214 Seiten mit 155 Abbildungen und 4 Tabellen, 3 Beilagen
description: Bonner Jahrbücher, Bd. 209.2009(2011): Bonner Jahrbücher