cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metallic conductivity on Na-deficient structural domain walls in the spin-orbit Mott insulator Na$_2$IrO$_3$
Creators: name: Breitner, Franziska A.
name: Kaiser, Julian
name: Jesche, Anton
name: Gegenwart, Philipp
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Honeycomb Na$_2$IrO$_3$ is a prototype spin-orbit Mott insulator and Kitaev magnet. We report a combined structural and electrical resistivity study of Na$_2$IrO$_3$ single crystals. Laue back-scattering diffraction indicates twinning with $\pm 120^\circ$ rotation around the $c^*$-axis while scanning electron microscopy displays nanothin lines parallel to all three b-axis orientations of twin domains. Energy dispersive x-ray analysis line-scans across such domain walls indicate no change of the Ir signal intensity, i.e. intact honeycomb layers, while the Na intensity is reduced down to $\sim 2/3$ of its original value at the domain walls, implying significant hole doping. Utilizing focused-ion-beam micro-sectioning, the temperature dependence of the electrical resistance of individual domain walls is studied. It demonstrates the tuning through the metal-insulator transition into a correlated-metal ground state by increasing hole doping.
description: 8 pages, 9 figures
title: Astronomical Photographic Archives: Past, Present, Future
Creators: name: R. Hudec
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: There are more than 10 millions astronomical photographic negatives (glass plates and planfils/films) worldwide. Most of them represent stellar fields and solar images, but there are also numerous negatives with other celestial objects.  There is large variety of these negatives (wide field and narrow field direct images, multiple images, low dispersion and high dispersion spectra etc.).  I will give review and discussion of these databases  including recent progress in their digitization and scienfic use.
title: Sternberg Astronomical Institute’s plate collection: the present and future of its scientific use
Creators: name: N. Samus Et Al.
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: There are more than 10 millions astronomical photographic negatives (glass plates and planfils/films) worldwide. Most of them represent stellar fields and solar images, but there are also numerous negatives with other celestial objects.  There is large variety of these negatives (wide field and narrow field direct images, multiple images, low dispersion and high dispersion spectra etc.).  I will give review and discussion of these databases  including recent progress in their digitization and scienfic use.Direct plates archives may be used to remeasure stars which were the target of the observations or to look at other stars discovered to be interesting only at a later time. I present here two cases: a search for Long Period Variable (LPV) stars on IR plates, and a search for past outbursts of a recently discovered cataclismic variable.Long period red variables (LPV) have been searched in a collection of Schmidt plates of the Asiago Observatory taken in the I band, centered on Gamma Cas and covering the years 1967-1975. These plates were not used by the original investigators. Digitization was made at the Perugia University and analysis was performed with the PyPlate software developed for the APPLAUSE project. Twentyone variables were found, nearly doubling the number of presently known variables in the field. Ten stars have Mira light curves, two of them with marked double period. Spectroscopic follow-up gave a large fraction of Carbon stars (7/21) and of S-type stars (6/21).Blue plates of the same field were also taken in pair with the IR ones and I have used them to explore the past behaviour of ASASSN-18aan, a CV variable recently discovered robotically. Thre past flares were identified and a possible recurrence time scale of about one year was found.
title: Records from the past: variable stars from the Asiago plate archive
Creators: name: R. Nesci
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: Direct plates archives may be used to remeasure stars which were the target of the observations or to look at other stars discovered to be interesting only at a later time. I present here two cases: a search for Long Period Variable (LPV) stars on IR plates, and a search for past outbursts of a recently discovered cataclismic variable.Long period red variables (LPV) have been searched in a collection of Schmidt plates of the Asiago Observatory taken in the I band, centered on Gamma Cas and covering the years 1967-1975. These plates were not used by the original investigators. Digitization was made at the Perugia University and analysis was performed with the PyPlate software developed for the APPLAUSE project. Twentyone variables were found, nearly doubling the number of presently known variables in the field. Ten stars have Mira light curves, two of them with marked double period. Spectroscopic follow-up gave a large fraction of Carbon stars (7/21) and of S-type stars (6/21).Blue plates of the same field were also taken in pair with the IR ones and I have used them to explore the past behaviour of ASASSN-18aan, a CV variable recently discovered robotically. Three past flares were identified and a possible recurrence time scale of about one year was found.
Contagion in major CDS markets for the post Global Financial Crisis: A multivariate AR-FIGARCH-cDCC approach
Creators: name: Tsiaras, Konstantinos
name: Simos, Theodore
Publisher: name: Argomenti
Year: 2020
Subjects: Financial contagion, Global Financial Crisis, cDCC-AR-FIGARCH model, Sovereign CDS market

description: We explore the time-varying conditional correlations of the Sovereing CDS spread returns for Germany, France, China and Japan against USA. We employ a cDCC-AR-FIGARCH model in order to capture potential contagion effects between the markets during the 2011-2018 post global financial crisis. Empirical results do not reject contagion for the country pairs: Germany – France, Germany – Japan and France – Japan while there is little support for contagion among China and the rest of the countries. JEL classification: C58, F30, G01, G15
description: Argomenti, N. 16 (2020): maggio-agosto
title: Photographic and Digital Surveys at Sonneberg Observatory
Creators: name: P. Kroll
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: Sonneberg Observatory run photographic sky surveys (Sky Patrol and Field Patrol) from 1923 through 2010, the plates of which have mostly been
         digitized. The goal of continuation of the surveys by digital means has
         gradually been realized by fish-eye cameras and small telescopes
         monitoring of selected fields. The talk provides a brief overview on
         current scanning, observing and analysing activities.
Additional file 1 of UmetaFlow: an untargeted metabolomics workflow for high-throughput data processing and analysis
Creators: name: Kontou, Eftychia E.
name: Walter, Axel
name: Alka, Oliver
name: Pfeuffer, Julianus
name: Sachsenberg, Timo
name: Mohite, Omkar S.
name: Nuhamunada, Matin
name: Kohlbacher, Oliver
name: Weber, Tilmann
Publisher: name: figshare
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: Information Systems

description: Additional file 1. UmetaFlow: An untargeted metabolomics workflow for high-throughput data processing and analysis. Figure S1. A detailed overview of UmetaFlow. Table S1. Important instrument, method, and sample-specific parameters for UmetaFlow parameter optimization. Table S2. The optimal parameters for OpenMS (UmetaFlow) for feature detection, formula, and structural predictions of the in-house datasets. Table S3. Feature detection, structural and formula predictions for pyracrimycin A in Streptomyces sp. NBC 00162, Streptomyces sp. CA-210063 and Streptomyces eridani. Table S4. The optimal parameters for OpenMS (UmetaFlow) for feature detection, quantification, and marker selection of the MTBLS733 QE HF dataset. Table S5. Feature identification, quantification, and marker selection performance of different untargeted metabolomic data processing software using the benchmark dataset MTBLS733. Table S6. The optimal parameters for OpenMS (UmetaFlow) for feature detection, quantification, and marker selection of the MTBLS736 tripleTOF dataset. Table S7. Feature identification, quantification, and marker selection performance of different untargeted metabolomic data processing software using the benchmark dataset MTBLS736. Table S8. The optimal parameters for OpenMS (UmetaFlow) for feature detection and quantification of the MTBLS1129 and MTBLS1130 dataset. Figure S1. Plotted average metabolite intensities in normal and colon cancer tissue samples, detected and quantified with (a) XCMS and (b) UmetaFlow (dataset MTBLS1129).
Mergelyan's approximation theorem with nonvanishing polynomials and universality of zeta-functions
Creators: name: Andersson, Johan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Complex Variables (math.CV)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 30E10, 11M06

description: We prove a variant of the Mergelyan approximation theorem that allows us to approximate functions that are analytic and nonvanishing in the interior of a compact set K with connected complement, and whose interior is a Jordan domain, with nonvanishing polynomials. This result was proved earlier by the author in the case of a compact set K without interior points, and independently by Gauthier for this case and the case of strictly starlike compact sets. We apply this result on the Voronin universality theorem for compact sets K of this type, where the usual condition that the function is nonvanishing on the boundary can be removed. We conjecture that this version of Mergelyan's theorem might be true for a general set K with connected complement and show that this conjecture is equivalent to a corresponding conjecture on Voronin Universality.
description: v1: 13 pages. v2+v3: 14 pages. Fixed error in the statement of the Lemma + minor changes. v4: 13 pages, Removed Lemma since it does not give any non trivial sets + minor changes. v5+v6: 13 pages, Clarified the last half of the proof of Theorem 6 + minor changes
Additional file 1 of Serum fatty acid profiles in breast cancer patients following treatment
Creators: name: Pakiet, Alicja
name: Jędrzejewska, Agata
name: Duzowska, Katarzyna
name: Wacławska, Alina
name: Jabłońska, Patrycja
name: Zieliński, Jacek
name: Mika, Adriana
name: Śledziński, Tomasz
name: Słomińska, Ewa
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Plant Biology
subject: FOS: Biological sciences
subject: Computational Biology

description: Additional file 1: Table S1. Principal component analysis (PCA) models summary. Table S2. Comparison of serum fatty acid profiles between the control group and breast cancer patients preoperative and in follow-ups. Table S3. Comparison of serum fatty acid profiles between the age-matched control group and breast cancer patients preoperative and in follow-ups. Table S4. Comparison of fatty acid serum content in paired samples from preoperative patients and 12 months follow-up. Table S5. Comparison of fatty acid serum content in paired samples from preoperative patients and 24 months follow-up. Table S6. Comparison of fatty acid serum content in paired samples from patients in 12 months and 24 months follow-up. Table S7. Discriminant analysis models summary. Table S8. P-values from two-way t-Student’s test for comparisons between breast cancer patients’ serum fatty acids levels at different time points versus the control group. Figure S1. Boxplots for variables with VIP scores above 1 in significant PLS-DA models.
To be safe and included : SOGI 1 2 3 and the (re)production of the acceptable queer subject
Creators: name: Srivastava, Shannon
Publisher: name: University of British Columbia
Year: 2023

description: Beginning in 2013, ARC Foundation collaborated with B.C.’s Ministry of Education, the University of British Columbia’s Faculty of Education, as well as many community organizations and partners in the province to create a program and resource that would endeavour to make schools more inclusive of and safe for students of diverse gender identities and sexual orientations; they named it ‘SOGI 1 2 3.’ Although the program received considerable media and public attention in its initial implementation years (either in the form of right-wing conservatives opposing it or staunch liberals advocating for the protection of 2SLGBTQ+ human rights), the program itself has not been critically analyzed from a queer, feminist, and anti-racist perspective—a dearth in academic research that this thesis hopes to address. Employing a Foucauldian analysis of power relations, this thesis considers what kind of subject SOGI 1 2 3 seeks to produce, through what kinds of discursive practices, and with what effects. Through subjecting the program to critical discourse analysis, two key discursive threads emerge: that of safe spaces and inclusion & diversity. I ultimately argue that, in deploying such discourses SOGI 1 2 3 elevates a white, out, and homonational subject within queer spaces and within the Canadian national imaginary. Consequently, racially and sexually perverse subjects who are deemed illegible within the eyes of the nation and euro-western sexual standards are marginalized, or excluded entirely from queer and national spaces. Drawing upon scholarship from queer, feminist, and critical race theory, my analysis aims to highlight how sexual, racial, and colonial power relations can be, and are, discursively reproduced and reified by 2SLGBTQ+ programs and organizations in Canada, like SOGI 1 2 3—programs that are often left unexamined amidst the rise of transphobic and homophobic hatred and violence within Canada and globally. This analysis aims to encourage or remind scholars and activists not to accept a neoliberal and national politics of inclusion, but to dream more expansively and radically about the possibilities for a queer(er) future.
title: The photographic heritage of astronomy in Bonn
Creators: name: M. Geffert
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: From the beginning of the photographic observations by Küstner in Bonn at 1900 it was planned that future astronomers may use these data for the determination of proper motions. This idea was realised by astronomers of Bonn starting in 1981. Their efforts resulted mainly in determinations of proper motions of stars in open and globular clusters. Moreover, astronomers from Hoher List observatory took plates for the search of variable stars.
         We give an overview of the projects using photographic plates of Bonn university and other telescopes like the famous observations of the Carte du Ciel.
I 7 vizi della competenza finanziaria degli Enti territoriali italiani e i 4 ostacoli all’armonizzazione europea
Creators: name: Grandis, Fabio Giulio
name: Federici, Andrea
Publisher: name: Argomenti
Year: 2020
Subjects: Enti territoriali italiani, armonizzazione contabile, sistema contabile economico-patrimoniale

description: Directive 2011/85/EU provides for the adoption of economic and financial accounting systems in the general government of EU Member States. The objective of this work is to verify whether the accounting system of the Italian territorial entities, respects the authorization purposes typical of public accounting and at the same time guarantees the establishment of an effective full accrual accounting. The conclusions highlight the inadequacy of chargeability’s criterion with respect to the typical authorization purpose of financial accounting and the need to modify the current accounting discipline in order to make it suitable for an effective full accrual accounting, adapted to the future transposition of EPSAS. JEL Classification: H83, M41
description: Argomenti, N. 16 (2020): maggio-agosto
Scale-free chaos in the 2D harmonically confined Vicsek model
Creators: name: González-Albaladejo, R.
name: Bonilla, L. L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Animal motion and flocking are ubiquitous nonequilibrium phenomena that are often studied within active matter. In examples such as insect swarms, macroscopic quantities exhibit power laws with measurable critical exponents and ideas from phase transitions and statistical mechanics have been explored to explain them. The widely used Vicsek model with periodic boundary conditions has an ordering phase transition but the corresponding homogeneous ordered or disordered phases are different from observations of natural swarms. If a harmonic potential (instead of a periodic box) is used to confine particles, the numerical simulations of the Vicsek model display periodic, quasiperiodic and chaotic attractors. The latter are scale free on critical curves that produce power laws and critical exponents. Here we investigate the scale-free-chaos phase transition in two space dimensions. We show that the shape of the chaotic swarm on the critical curve reflects the split between core and vapor of insects observed in midge swarms and that the dynamic correlation function collapses only for a finite interval of small scaled times, as also observed. We explain the algorithms used to calculate the largest Lyapunov exponents, the static and dynamic critical exponents and compare them to those of the three-dimensional model.
description: 26 pages, 13 figures, revtex
title: The APPLAUSE-Projekt: The plate archives
Creators: name: U. Heber
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: The Dr. Remeis-Sternwarte in Bamberg, the Leibniz-Institut für Astrophysik, Potsdam and the Hamburger Sternwarte host important astronomical plate archives. Astronomers from those institutions teamed up to digitize their archives, calibrate and integrate them into the publically available database APPLAUSE. In an international collaboration also the plate archive of the Tartu observatory was included. Here we briefly describe the instrumentations used and the history of the plate archives of the collaboration.
title: Transmission Electron Microscopy Study on the Precipitation Behaviors of Laser-Welded Ferritic Stainless Steels and Their Implications on Intergranular Corrosion Resistance
Creators: name: Sommer, Niklas
name: Warres, Clementine
name: Lutz, Tarek
name: Kahlmeyer, Martin
name: Böhm, Stefan
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: stainless steel
subject: laser welding
subject: intergranular corrosion
subject: precipitation
subject: sensitization
subject: electron microscopy
subject: 620
subject: Nicht rostender Stahl
subject: Laserschweißen
subject: Interkrisalline Korrosion
subject: Niederschlag
subject: Elektronenmikroskop

description: Gefördert durch den Publikationsfonds der Universität Kassel
Innovative local policy instruments enabling sustainable innovation: benchmarking worldwide best practices
Creators: name: Mazzanti, Massimiliano
name: Tapia, Carlos
name: Pegoraro, Arianna
Publisher: name: Argomenti
Year: 2020
Subjects: Eco-innovation Sustainable innovation Sustainable development Local Policy instrument Policy approach

description: In order to tackle climate change related threats, international policy leaders developed an agenda for sustainable development and try to boost the dissemination of eco-innovations. This work investigates how innovative policy instruments and approaches enabling innovation for sustainable development are successfully implemented at the local level. Results show that the main enabler is strong collaboration among the different stakeholders. Other enabling factors are the presence of initial and ongoing training, the development of an advertising campaign and the government’s commitment and open approach towards innovative sustainable practices. Keywords: Eco-innovation, Sustainable development, Policy instrument
description: Argomenti, N. 16 (2020): maggio-agosto
Gli effetti del COVID - 19 sull’economia italiana e sul sistema produttivo
Creators: name: Giorgio, Fabio
name: Carnazza, Paolo
Publisher: name: Argomenti
Year: 2020
Subjects: crisi, analisi struttura produttiva, politica industriale

description: This research aims at collecting the various information about studies quantifying economic impacts of coronavirus, also trying to provide some interpretations on the short and medium term effects of COVID - 19. We try to deepen the impact of the crisis on our productive system, on the basis of quantitative data and examining various qualitative surveys carried out recently by the Bank of Italy and by some business associations. The research then focuses on the production reconversion strategies carried out by many Italian firms. Finally, we have tried to schematize some short and mediumterm post-crisis scenarios. JEL classification: H12
description: Argomenti, N. 16 (2020): maggio-agosto
Symmetry preserving parameterization schemes
Creators: name: Popovych, Roman O.
name: Bihlo, Alexander
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76M60, 35A30

description: Methods for the design of physical parameterization schemes that possess certain invariance properties are discussed. These methods are based on different techniques of group classification and provide means to determine expressions for unclosed terms arising in the course of averaging of nonlinear differential equations. The demand that the averaged equation is invariant with respect to a subalgebra of the maximal Lie invariance algebra of the unaveraged equation leads to a problem of inverse group classification which is solved by the description of differential invariants of the selected subalgebra. Given no prescribed symmetry group, the direct group classification problem is relevant. Within this framework, the algebraic method or direct integration of determining equations for Lie symmetries can be applied. For cumbersome parameterizations, a preliminary group classification can be carried out. The methods presented are exemplified by parameterizing the eddy vorticity flux in the averaged vorticity equation. In particular, differential invariants of (infinite dimensional) subalgebras of the maximal Lie invariance algebra of the unaveraged vorticity equation are computed. A hierarchy of normalized subclasses of generalized vorticity equations is constructed. Invariant parameterizations possessing minimal symmetry extensions are described and a restricted class of invariant parameterization is exhaustively classified. The physical importance of the parameterizations designed is discussed.
description: 38 pages, 2 figure, minor corrections
Can tunneling current in molecular junctions be so strongly temperature dependent to challenge a hopping mechanism? Analytical formulas answer this question and provide important insight into large area junctions
Creators: name: Baldea, Ioan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: {Analytical equations like Richardson-Dushman's or Shockley's provided a general, if simplified conceptual background, which was widely accepted in conventional electronics and made a fundamental contribution to advances in the field. In the attempt to develop a (highly desirable, but so far missing) counterpart for molecular electronics, in this work, we deduce a general analytical formula for the tunneling current through molecular junctions mediated by a single level that is valid for any bias voltage and temperature. Starting from this expression, which is exact and obviates cumbersome numerical integration, in the low and high temperature limits we also provide analytical formulas expressing the current in terms of elementary functions. They are accurate for broad model parameter ranges relevant for real molecular junctions. Within this theoretical framework we show that: (i) by varying the temperature, the tunneling current can vary by several orders of magnitude, thus debunking the myth that a strong temperature dependence of the current is evidence for a hopping mechanism, (ii) real molecular junctions can undergo a gradual (Sommerfeld-Arrhenius) transition from a weakly temperature dependent to a strongly (``exponential'') temperature dependent current that can be tuned by the applied bias, and (iii) important insight into large area molecular junctions with eutectic gallium indium alloy (EGaIn) top electrodes can be gained. E.g., merely based on transport data, we estimate that the current carrying molecules represent only a fraction of f \approx 4 \times 10^{-4} out of the total number of molecules in a large area \ce{Au-S-(CH2)13-CH_3 / EGaIn} junction.
title: Impact of the ASAS-SN survey and the Moscow's photographic plates archive on the nature of the emission line star HBHA 1704-05
Creators: name: A. Skopal
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: The star HBHA 1704-05 was
         originally classified as an emission-line star (Kohoutek and Wehmeyer, 1999). On the basis of The
         All Sky Automated Survey for SuperNovae (ASAS-SN), the object was cataloged in the VSX as
         an semi-regular variable with a periodicity around 418 days. At the beginning of August 2018, the
         ASAS-SN survey indicated a rapid brightening of the star. Following high-cadence photometric and
         spectroscopic observations clarified the nature of HBHA 1704-05 as a symbiotic star in outburst.
         Monitoring the object within the ASAS-SN survey for around 3.5 years revealed a wave-like variation
         with the amplitude DV ~0.7 mag and a period of ~495 days. Our close inspection of the Moscow's
         photographic plates archive revealed another 2-mag outburst of HBHA 1704-05 lasting from 1968 to
         around 1990, during which a regular variation with the same period and phase, but amplitude of
         D(m_pg) ~ 1 mag, emerged. These properties support the nature of HBHA 1704-05 as a symbiotic
         binary with the orbital period of ~495 days.
         Close similarities with other symbiotic systems are briefly discussed.
Predicting Failure of P2P Lending Platforms through Machine Learning: The Case in China
Creators: name: Yeh, Jen-Yin
name: Chiu, Hsin-Yu
name: Huang, Jhih-Huei
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Finance (q-fin.GN)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: This study employs machine learning models to predict the failure of Peer-to-Peer (P2P) lending platforms, specifically in China. By employing the filter method and wrapper method with forward selection and backward elimination, we establish a rigorous and practical procedure that ensures the robustness and importance of variables in predicting platform failures. The research identifies a set of robust variables that consistently appear in the feature subsets across different selection methods and models, suggesting their reliability and relevance in predicting platform failures. The study highlights that reducing the number of variables in the feature subset leads to an increase in the false acceptance rate while the performance metrics remain stable, with an AUC value of approximately 0.96 and an F1 score of around 0.88. The findings of this research provide significant practical implications for regulatory authorities and investors operating in the Chinese P2P lending industry.
Local spin foams
Creators: name: Magliaro, Elena
name: Perini, Claudio
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The central object of this paper is a holonomy formulation for spin foams. Within this new represen- tation, we analyze three general requirements: locality, composition law, cylindrical consistency. In particular, cylindrical consistency is shown to fix the arbitrary normalization of the vertex amplitude in the case of Euclidean signature.
description: 9 pages, 8 figures, published version
title: Long-term activity of cataclysmic variables and related objects (large amplitude features)
Creators: name: V. Simon
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: Cataclysmic variables and their relatives (low-mass X-ray binaries) are very active objects. We summarize the dominant features of their activity. We show that monitoring by various types of instruments is necessary to detect the events (e.g. outbursts, transitions between the high and low states) which are often unpredictable. Histograms of brightness provide us with the properties of activity of various types of such objects. Photographic monitoring spanning for about a century enables to study the properties of the light curves. We also show how the photographic light curves can be combined with the CCD and visual observations. The long monitoring also shows that the activity of some objects dramatically changed during several decades. We also briefly summarize the astrophysical interpretations of the long-term activity.
New evidence of multiple channels for the origin of gamma-ray bursts with extended emission
Creators: name: Li, Q. M.
name: Sun, Q. B.
name: Zhang, Z. B.
name: Zhang, K. J.
name: Long, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) are the most intense explosions in the universe. GRBs with extended emission (GRB EE) constitute a small subclass of GRBs. GRB EE are divided into EE-I GRBs and EE-II GRBs, according to the Amati empirical relationship rather than duration. We test here if these two types of GRB have different origins based on their luminosity function (and formation rate). Therefore, we use Lynden-Bell's c^- method to investigate the LF and FR of GRBs with EE without any assumption. We calculate the formation rate of two types of GRBs. For EE-I GRBs, the fitting function can be written as ρ(z) \propto {(1 + z)^{ - 0.34 \pm 0.04} for z < 2.39 and ρ(z) \propto {(1 + z)^{ - 2.34 \pm 0.24}} for z>2.39. The formation rate of EE-II can describe as ρ(z) \propto {(1 + z)^{ - 1.05 \pm 1.10}} for z<0.43 and ρ(z) \propto {(1 + z)^{ - 8.44 \pm 1.10}} for z>0.43. The local formation rate are ρ(0) = 0.03 Gpc^{-3}yr^{-1} for some EE-I GRBs and ρ(0) = 0.32 Gpc^{-3}yr^{-1} for EE-II GRBs. Based on these results, we provide a new evidence that the origins of EE-I GRBs are different from EE-II GRBs from the perspective of event rate. The EE-I GRB could be produced from the death of the massive star, but EE-II GRB bursts may come from other processes that are unrelated to the SFR. Our findings indicate that the GRB with EE could have multiple production channels.
description: 9 pages, 9 figures, published in MNRAS
On the dynamics of trap models in Z^d
Creators: name: Fontes, Luiz Renato
name: Mathieu, Pierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35, 60K37

description: We consider trap models on Z^d, namely continuous time Markov jump process on Z^d with embedded chain given by a generic discrete time random walk, and whose mean waiting time at x is given by tau_x, with tau = (tau_x, x in Z^d) a family of positive iid random variables in the basin of attraction of an alpha-stable law, 0
description: 36 pages, 5 figures. Replaces first version, with a correction to/weakening of the statement of current Theorem 25, corrections to its proof and that of Lemma 16, the addition of a subsection on integrated aging results. Section 4, on convergence, was somewhat restructured
title: Digitized photographic plate photometry with VaST software
Creators: name: K. Sokolovsky
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: Photographic emulsion is a non-linear light detector which makes it difficult to perform photometry with digitized plates using conventional software. Inexpensive flatbed scanners (often used to digitize plates) provide image quality acceptable for photometry, but introduce complex image distortions (notably, the hacksaw pattern) that complicate astrometry and source identification. VaST is a photometry package designed from the ground up to handle such images. It relies on SExtractor for source detection/photometry, matches source lists derived from plates exposed at different epochs and cross-calibrates their magnitude scales to construct lightcurves of all the detected objects. An array of statistical methods can be applied to these lightcurves to identify variable objects. Accurate celestial positions of variable objects are measured by using nearby sources to compute local corrections to the approximate plate solution obtained with Astrometry.net. VaST is used mostly with the Moscow collection plates, but is intended to be a general-purpose tool for lightcurve extraction from a series of digitized photographic images.
title: PyPlate: a software package for processing digitized astronomical photographic plates
Creators: name: T. Tuvikene
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: Digitizing an archive of photographic plates yields a set of image files and accompanying metadata files. To handle and process these data efficiently, we have developed a Python package PyPlate. PyPlate provides methods to read data from CSV and FITS files, to make calculations with various observation timestamps, to create consistent and easily readable FITS headers, to write plate metadata into a database, to extract sources from plate images, to carry out astrometric and photometric calibration on the extracted sources, and to output the source data to a database or files on disk. We will show how the PyPlate software was used for building the APPLAUSE database and discuss how it can be applied elsewhere.
Additional file 3 of The influence of immune challenges on the mean and variance in reproductive investment: a meta-analysis of the terminal investment hypothesis
Creators: name: Foo, Yong Zhi
name: Lagisz, Malgorzata
name: O’Dea, Rose E.
name: Nakagawa, Shinichi
Publisher: name: figshare
Year: 2023
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Supplementary results. [Hedges’ d and lnSD results]. Table S1. [Heterogeneity by random effects]. Table S2. [Hedges’ d results]. Table S3. [lnRR models’ AICc]. Table S4. [lnCVR models’ AICc]. Table S5. [Hedges’ d AICc]. Figure S1. [Association among moderators]. Figure S2. [Orchard plots for lnRR without truncation]. Figure S3. [Relationship plots for lnRR without truncation]. Figure S4. [Orchard plots for lnCVR without truncation]. Figure S5. [Relationship plots for lnCVR without truncation].
Potential Theory on Trees, Graphs and Ahlfors Regular Metric Spaces
Creators: name: Arcozzi, N.
name: Rochberg, R.
name: Sawyer, E.
name: Wick, B. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 30LXX, 31-XX, 32U20

description: We investigate connections between potential theories on a Ahlfors-regular metric space X, on a graph G associated with X, and on the tree T obtained by removing the "horizontal edges" in G. Applications to the calculation of set capacity are given.
description: 45 pages; presentation improved based on referee comments
Additional file 8 of Small nucleolar RNAs signature (SNORS) identified clinical outcome and prognosis of bladder cancer (BLCA)
Creators: name: Cao, Rui
name: Ma, Bo
name: Yuan, Lushun
name: Wang, Gang
name: Tian, Ye
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 8: Table S6. Correlation between candidate snoRNAs and their methylation sites in TCGA-BLCA cohort.
Initial Characterization of the First Speedster-EXD550 Event-Driven X-Ray Hybrid Complementary Metal-Oxide Semiconductor Detectors
Creators: name: Colosimo, Joseph M.
name: Grzybowski, Hannah M.
name: Jennerjahn, Evan C.
name: Stone, Lukas R.
name: Falcone, Abraham D.
name: Wages, Mitchell
name: Buffington, Jacob C.
name: Burrows, David N.
name: Catlin, Zachary E.
name: Emeigh, Timothy
name: Hancock, Frederic
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Future x-ray observatories will require imaging detectors with fast readout speeds that simultaneously achieve or exceed the other high performance parameters of x-ray charge-coupled devices (CCDs) used in many missions over the past three decades. Fast readout will reduce the impact of pile-up in missions with large collecting areas while also improving performance in other respects like timing resolution. Event-driven readout, in which only pixels with charge from x-ray events are read out, can be used to achieve these faster operating speeds. Speedster-EXD550 detectors are hybrid complementary metal-oxide semiconductor (CMOS) detectors capable of event-driven readout, developed by Teledyne Imaging Sensors and Penn State University. We present initial results from measurements of the first of these detectors, demonstrating their capabilities and performance in both full-frame and event-driven readout modes. These include dark current, read noise, gain variation, and energy resolution measurements from the first two engineering-grade devices.
description: 14 pages, 7 figures, 4 tables; Published in the Journal of Astronomical Telescopes, Instruments, and Systems
Understanding the Process of Data Labeling in Cybersecurity
Creators: name: Braun, Tobias
name: Pekaric, Irdin
name: Apruzzese, Giovanni
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Many domains now leverage the benefits of Machine Learning (ML), which promises solutions that can autonomously learn to solve complex tasks by training over some data. Unfortunately, in cyberthreat detection, high-quality data is hard to come by. Moreover, for some specific applications of ML, such data must be labeled by human operators. Many works "assume" that labeling is tough/challenging/costly in cyberthreat detection, thereby proposing solutions to address such a hurdle. Yet, we found no work that specifically addresses the process of labeling 'from the viewpoint of ML security practitioners'. This is a problem: to this date, it is still mostly unknown how labeling is done in practice -- thereby preventing one from pinpointing "what is needed" in the real world.
 In this paper, we take the first step to build a bridge between academic research and security practice in the context of data labeling. First, we reach out to five subject matter experts and carry out open interviews to identify pain points in their labeling routines. Then, by using our findings as a scaffold, we conduct a user study with 13 practitioners from large security companies, and ask detailed questions on subjects such as active learning, costs of labeling, and revision of labels. Finally, we perform proof-of-concept experiments addressing labeling-related aspects in cyberthreat detection that are sometimes overlooked in research. Altogether, our contributions and recommendations serve as a stepping stone to future endeavors aimed at improving the quality and robustness of ML-driven security systems. We release our resources.
Energy methods in the stability problem for the $\mathfrak{so}(4)$ free rigid body
Creators: name: Birtea, Petre
name: Casu, Ioan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For the $\mathfrak{so}(4)$ free rigid body the stability problem for the isolated equilibria has been completely solved using Lie-theoretical and topological arguments. For each case of nonlinear stability previously found we construct a Lyapunov function. These Lyapunov functions are linear combinations of Mishchenko's constants of motion.
description: Preprint of a paper accepted for publication in International Journal of Bifurcation and Chaos
Copertina - Indice
Creators: name: ‍, ‍
Publisher: name: Cultura giuridica e diritto vivente
Year: 2015

description: [Quo vadis Europa? Stability and growth in the European legal system]. Financial stability and growth have become, since the “sovereign debt crisis”, the cornerstone of every speech on the present and future of Europe. But what are the causes of the irresistible rise of these two values in the economic constitution of the Union and of the Member States? And what are, above all, the political, legal, social, institutional implications of the ascent of stability and growth to “Grundnorm” of the European legal system? The various essays in this issue of the journal provide, each from a specific point of view, answers to these crucial questions about the recent past and the destiny of the Old Continent. Key Words: Structural reforms, economic constitution, sovereign debt crisis, Fiscal compact, stability and growth pact
description: Cultura giuridica e diritto vivente, 2015: QUO VADIS EUROPA? Stabilità e crescita nell'ordinamento europeo
title: False-positives detection with convolutional neural networks
Creators: name: G. Matijevic
Publisher: name: Leibniz Institut für Astrophysik Potsdam (AIP), Dr. Remeis-Sternwarte Bamberg, FAU
Year: 2019
Subjects: subject: 520 Astronomy
subject: Conference: Large Surveys with Small Telecsopes, Bamberg

description: Digital scans of photographic plates are more complicated to handle in comparison to the CCD frames. Due to their fragile nature and age they are subject to several effects that act as a source of false-positive detections. Among these effects are surface dust speckles, scratches, emulsion damage, and writing traces. Besides those the optical systems used to acquire the images come with their share of aberrations which make the removal of false-positives harder. The APPLAUSE database already consists of a few billion detected sources, many of which are not of astrophysical nature. Their detection and / or removal is very important for practical purposes but it is obviously not a trivial task. We will present a convolutional neural network based pipeline that efficiently and quickly weeds out the false-positive detections and is also capable of assigning false-positive probability to individual sources in less clear-cut cases. Our plan is to use its output in the next APPLAUSE data release.
Presentazione. La (ir)resistibile ascesa della dottrina dell'austerità
Creators: name: Cantaro, Antonio
Publisher: name: Cultura giuridica e diritto vivente
Year: 2015

description: «La stabilità finanziaria, la cosiddetta sostenibilità delle finanze pubbliche, è diventata, dapprima ‘silenziosamente’ negli anni novanta dello scorso secolo (Maastricht, Patto di stabilità e crescita) e poi sempre più chiaramente a partire dalla crisi dei debiti sovrani della fine del primo decennio del ventunesimo secolo, un vincolo ineludibile per i Governi e per i Parlamenti degli Stati dell’Unione. L’imperativo assoluto dell’agenda politica europea, il supervalore a cui tutti gli altri valori dell’ordinamento sovranazionale e degli ordinamenti degli Stati membri devono inderogabilmente sottostare (Fiscal compact)»... (segue).
description: Cultura giuridica e diritto vivente, 2015: QUO VADIS EUROPA? Stabilità e crescita nell'ordinamento europeo
Genetic Algorithm for Mulicriteria Optimization of a Multi-Pickup and Delivery Problem with Time Windows
Creators: name: Dridi, Imen Harbaoui
name: Kammarti, Ryan
name: Ksouri, Mekki
name: Borne, Pierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: In This paper we present a genetic algorithm for mulicriteria optimization of a multipickup and delivery problem with time windows (m-PDPTW). The m-PDPTW is an optimization vehicles routing problem which must meet requests for transport between suppliers and customers satisfying precedence, capacity and time constraints. This paper purposes a brief literature review of the PDPTW, present an approach based on genetic algorithms and Pareto dominance method to give a set of satisfying solutions to the m-PDPTW minimizing total travel cost, total tardiness time and the vehicles number.
Flaws, Old and New, of Economic Governance in Europe
Creators: name: Joerges, Christian
Publisher: name: Cultura giuridica e diritto vivente
Year: 2015

description: «It has become difficult for a German to give a talk in Italy. Even at occasions which do not deal with the future of Europe, the crisis is somehow present. And this presence is an uncomfortable one. And vice versa, how do Italians feel when they address a German audience? Their task is different, but by no means easy. I refrain from reporting my experiences and instead try to say what I feel we would need, namely, a type of communication and interaction in which we are aware of our differences, try to understand the background of the other, and learn to synthesise respect and critique»... (segue).
description: Cultura giuridica e diritto vivente, 2015: QUO VADIS EUROPA? Stabilità e crescita nell'ordinamento europeo