cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multilayer Perceptron Neural Network Models in Asset Pricing: An Empirical Study on Large-Cap US Stocks
Creators: name: Lai, Shanyan
Publisher: name: arXiv
Year: 2025
Subjects: subject: Pricing of Securities (q-fin.PR)
subject: Computational Finance (q-fin.CP)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business
subject: J.4; G.3; I.2.6
subject: 91G10, 91G60, 62M45, 62P05

description: In this study, MLP models with dynamic structure are applied to factor models for asset pricing tasks. Concretely, the MLP pyramid model structure was employed on firm-characteristic-sorted portfolio factors for modelling the large-capital US stocks. It was further developed as a practicable factor investing strategy based on the predictions. The main findings in this chapter were evaluated from two angles: model performance and investing performance, which were compared from the periods with and without COVID-19. The empirical results indicated that with the restrictions of the data size, the MLP models no longer perform "deeper, better", while the proposed MLP models with two and three hidden layers have higher flexibility to model the factors in this case. This study also verified the idea of previous works that MLP models for factor investing have more meaning in the downside risk control than in pursuing the absolute annual returns.
MBS Deferred Asset Model
Creators: name: Lee, David
Publisher: name: Zenodo
Year: 2022
Subjects: MBS Deferred Asset Model, Canada Mortgage Bond

description: The MBS Deferred Asset model is used for fair value assets that have been transferred to the Canada Housing Trust (CHT) through participation in the Canada Mortgage Bond (CMB) program. In particular, the model calculates the fair value of the retained interest of the MBS.
description: https://osf.io/preprints/inarxiv/zv2xe/download
EnsembleCI: Ensemble Learning for Carbon Intensity Forecasting
Creators: name: Yan, Leyi
name: Wang, Linda
name: Liu, Sihang
name: Ding, Yi
Publisher: name: arXiv
Year: 2025
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Carbon intensity (CI) measures the average carbon emissions generated per unit of electricity, making it a crucial metric for quantifying and managing the environmental impact. Accurate CI predictions are vital for minimizing carbon footprints, yet the state-of-the-art method (CarbonCast) falls short due to its inability to address regional variability and lack of adaptability. To address these limitations, we introduce EnsembleCI, an adaptive, end-to-end ensemble learning-based approach for CI forecasting. EnsembleCI combines weighted predictions from multiple sublearners, offering enhanced flexibility and regional adaptability. In evaluations across 11 regional grids, EnsembleCI consistently surpasses CarbonCast, achieving the lowest mean absolute percentage error (MAPE) in almost all grids and improving prediction accuracy by an average of 19.58%. While performance still varies across grids due to inherent regional diversity, EnsembleCI reduces variability and exhibits greater robustness in long-term forecasting compared to CarbonCast and identifies region-specific key features, underscoring its interpretability and practical relevance. These findings position EnsembleCI as a more accurate and reliable solution for CI forecasting. EnsembleCI source code and data used in this paper are available at https://github.com/emmayly/EnsembleCI.
description: 5 pages, 5 figures, 3 tables, In The 16th ACM International Conference on Future and Sustainable Energy Systems (E-ENERGY'25)
Direct Collapse Accretion Disks Within Dark Matter Halos: Saturation of the Magnetorotational Instability and the Field Expulsion
Creators: name: Luo, Yang
name: Shlosman, Isaac
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have used high-resolution zoom-in simulations of direct collapse to supermassive black hole (SMBH) seeds within dark mater (DM) halos in the presence of magnetic fields generated during the collapse, down to $10^{-5}$ pc or 2 AU. We confirm an efficient amplification of magnetic field during collapse, the formation of a geometrically thick self-gravitating accretion disk inside 0.1 pc, and damping of fragmentation in the disk by the field. This disk differs profoundly from SMBH accretion disks. We find the following: (1) The accretion disk is subject to the magnetorotational instability which further amplifies the field to near equipartition. No artificial seeding of the disk field has been used. (2) The equipartition toroidal field changes its polarity in the midplane. (3) The nonlinear Parker instability develops, accompanied by the vertical buckling of the field lines, which injects material above the disk, leading to an increase in the disk scale height; (4) With the Coriolis force producing a coherent helicity above the disk, vertical poloidal field has been generated and amplified. (5) We estimate that the associated outflow will be most probably squashed by accretion. The resulting configuration consists of a magnetized disk with $β> 0.1$ and its magnetosphere with $β<< 1$, where $β= P_{\rm th}/P_{\rm B}$ is the ratio of thermal to magnetic energy density. (6) The disk is highly variable, due to feeding by variable accretion flow, and strong vortical motions are present. (7) Finally, the negative gradient of the total vertical stress drives an equatorial outflow sandwiched by an inward accretion flow.
description: 17 pages, 15 figures, accepted for publication in ApJ
Implicit Neural Representations for Simultaneous Reduction and Continuous Reconstruction of Multi-Altitude Climate Data
Creators: name: Qayyum, Alif Bin Abdul
name: Luo, Xihaier
name: Urban, Nathan M.
name: Qian, Xiaoning
name: Yoon, Byung-Jun
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The world is moving towards clean and renewable energy sources, such as wind energy, in an attempt to reduce greenhouse gas emissions that contribute to global warming. To enhance the analysis and storage of wind data, we introduce a deep learning framework designed to simultaneously enable effective dimensionality reduction and continuous representation of multi-altitude wind data from discrete observations. The framework consists of three key components: dimensionality reduction, cross-modal prediction, and super-resolution. We aim to: (1) improve data resolution across diverse climatic conditions to recover high-resolution details; (2) reduce data dimensionality for more efficient storage of large climate datasets; and (3) enable cross-prediction between wind data measured at different heights. Comprehensive testing confirms that our approach surpasses existing methods in both super-resolution quality and compression efficiency.
description: arXiv admin note: text overlap with arXiv:2401.16936
The Efficacy of Fat Grafting on Treating Post-Mastectomy Pain with and without Breast Reconstruction: A Systematic Review and Meta-Analysis
Creators: name: Chen, Jeffrey
name: Alghamdi, Abdulrahman A.
name: Wong, Chi Yi
name: Alnaim, Muna F.
name: Kuper, Gabriel
name: Zhang, Jing
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2024

description: Post-mastectomy pain syndrome (PMPS), characterized by persistent pain lasting at least three months following mastectomy, affects 20–50% of breast surgery patients, lacking effective treatment options. A review was conducted utilizing EMBASE, MEDLINE, and all evidence-based medicine reviews to evaluate the effect of fat grafting as a treatment option for PMPS from database inception to 29 April 2023 (PROSPERO ID: CRD42023422627). Nine studies and 812 patients in total were included in the review. The overall mean change in visual analog scale (VAS) was −3.6 in 285 patients following fat grafting and 0.5 in 147 control group patients. There was a significant reduction in VAS from baseline in the fat grafting group compared to the control group, n = 395, mean difference = −2.17 (95% CI, −2.95 to −1.39). This significant improvement was also noted in patients who underwent mastectomy without reconstruction. Common complications related to fat grafting include capsular contracture, seroma, hematoma, and infection. Surgeons should consider fat grafting as a treatment option for PMPS. However, future research is needed to substantiate this evidence and to identify timing, volume of fat grafting, and which patient cohort will benefit the most.
Leucanopsis strigulosa
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leucanopsis
Leucanopsis strigulosa

description: Leucanopsis strigulosa (Walker, 1855)
Halesidota strigulosa Walker, 1855a: 737.
TYPE LOCALITY. — [Brazil], Pará.
TYPE SPECIMENS. — Described from 2 female syntypes (BMNH; one of the syntypes labeled TYPE).
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2) on page 359, DOI: 10.5252/z2014n2a1, http://zenodo.org/record/5395344
Adaptive Survey Designs for Nonresponse and Measurement Error in Multi-Purpose Surveys
Creators: name: Calinescu, Melania
name: Schouten, Barry
Publisher: name: European Survey Research Association
Year: 2016
Subjects: Responsive survey design; Response error; Mixed-mode surveys; Response latencies

description: Recently, survey methodology literature has put forward responsive and adaptive survey designs as means to make efficient tradeoffs between survey quality and survey costs. The designs, however, restrict quality-cost assessments to nonresponse error, while there are various design features that impact also measurement error, e.g. the survey mode, the type of questionnaire (long or condensed) and the type of reporting (self or proxy). Extension of adaptive survey design to measurement error is, however, not straightforward when a survey has many and diverse survey items. An adaptive survey design needs to make an overall choice of design features that applies to all survey items simultaneously.
In this paper, we investigate adaptive survey designs that account for both nonresponse and measurement error. In order to do so, we model  the underlying causes for differences in measurement error between design features. This leads to response styles or response latencies. We tailor efforts so that either response style propensities are minimized or constrained. We illustrate the ideas with a case study on the 2008 Dutch Labor Force Survey. The design features in this study are the type of reporting (self-reporting only versus proxy-reporting allowed), and the number of face-to-face calls.
description: Survey Research Methods, Vol 10, No 1 (2016)
Two of a Kind. Similarities Between Ranking and Rating Data in Measuring Values.
Creators: name: Moors, Guy
name: Vriens, Ingrid
name: Gelissen, John P.T.M.
name: Vermunt, Jeroen K.
Publisher: name: European Survey Research Association
Year: 2016
Subjects: Rating and Ranking questions, Survey methodology, Measuring attitudes and values, Latent class analysis, Questionnaire modes

description: The key research question asked in this research is to what extent the respondents’ answers to ranking a set of items is mirrored in the response pattern when using rating questions. For example: Do respondents who prefer intrinsic over extrinsic work values in a ranking questionnaire also rate intrinsic values higher than extrinsic values when ratings are used? We adopt a modified version of the form-resistant hypothesis, arguing that each questionnaire mode yields unique features that prevent it from establishing a perfect match between both modes. By adopting a unified latent class model that allows identifying latent class profiles that share a particular preference structure in both question modes, we show that a large portion of respondents tend to identify similar preferences structures in work values regardless of the questionnaire mode used. At the same time the within-subjects design we use is able to answer questions regarding how non-differentiators in a rating assignment react to a ranking assignment in which non-differentiation is excluded by design. Our findings are important since – contrary to popular belief – ranking and ratings do produce results that are more similar than often thought. The practical relevance of our study for secondary data analysts is that our approach provides them with a tool to identify relative preference structures in a given dataset that was asked by rating questions and hence not directly designed to reveal such preferences.
description: Survey Research Methods, Vol 10, No 1 (2016)
Spinor-Vector Duality and Mirror Symmetry
Creators: name: Faraggi, Alon E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Mirror symmetry was first observed in worldsheet string constructions and shown to have profound implications in the Effective Field Theory (EFT) limit of string compactifications, and for the properties of Calabi-Yau manifolds. It opened up a new field in pure mathematics and was utilised in the area of enumerative geometry. Spinor-Vector Duality (SVD) is an extension of mirror symmetry. This can be readily understood in terms of the moduli of toroidal compactification of the heterotic string, which include the metric the antisymmetric tensor field and the Wilson line moduli. In terms of toroidal moduli, mirror symmetry corresponds to mappings of the internal space moduli, whereas spinor-vector duality corresponds to maps of the Wilson line moduli. In the past few of years, we demonstrated the existence of spinor-vector duality in the effective field theory compactifications of the string theories. This was achieved by starting with a worldsheet orbifold construction that exhibited spinor-vector duality and resolving the orbifold singularities, hence generating a smooth effective field theory limit with an imprint of the spinor-vector duality. Just like mirror symmetry, the spinor-vector duality can be used to study the properties of complex manifolds with vector bundles. Spinor--vector duality offers a top-down approach to the ``Swampland''-program, by exploring the imprint of the symmetries of the ultra-violet complete worldsheet string constructions in the effective field theory limit. The SVD suggests a demarcation line between (2,0) EFTs that possess an ultra-violet complete embedding versus those that do not.
description: 15 pages. 2 figures. Contribution to Universe Special Issue: Particle Physics and Cosmology: A Themed Issue in Honour of Professor Dimitri Nanopoulos. Published version
Leucanopsis malodonta
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leucanopsis
Leucanopsis malodonta

description: Leucanopsis malodonta (Dyar, 1914)
Halesidota malodonta Dyar, 1914c: 161.
TYPE LOCALITY. — Peru, [Cuzco], Huadquina.
TYPE SPECIMEN. — Holotype male no. 19 073 (USNM).
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2) on page 359, DOI: 10.5252/z2014n2a1, http://zenodo.org/record/5395344
Scaling Up STRENGTH : Adaptation in a Pandemic Context
Creators: name: Bungay, Vicky
name: Dewar, Linda
name: Schoening, Mary
name: Long, Phoebe
name: Tait, Patricia
name: Comber, Scott
name: Leiper, Wendy
name: Guta, Adrian
name: Stones, Cheyanne
Publisher: name: The University of British Columbia
Year: 2024

description: This report describes findings from the Vancouver Hub of the Scaling Up Strengths-Based Outreach with Women Affected by Violence study. It specifically details the findings of adapting the STRENGTH model of outreach within a pandemic context including the onset of COVID-19 in March 2020, through May 2023. [This report corresponds to the 2019 STRENGTH project community report available at http://hdl.handle.net/2429/68472 and to the 2021 STRENGTH pilot study report available at http://hdl.handle.net/2429/78366; An updated file with minor revisions was uploaded on 2024-04-10]
Novel scaling laws to derive spatially resolved flare and CME parameters from sun-as-a-star observables
Creators: name: Mohan, Atul
name: Gopalswamy, Natchimuthuk
name: Raju, Hemapriya
name: Akiyama, Sachiko
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal mass ejections (CMEs) are often associated with X-ray (SXR) flares powered by magnetic reconnection in the low-corona, while the CME shocks in the upper corona and interplanetary (IP) space accelerate electrons often producing the type-II radio bursts. The CME and the reconnection event are part of the same energy release process as highlighted by the correlation between reconnection flux ($ϕ_{rec}$) that quantifies the strength of the released magnetic free energy during SXR flare, and the CME kinetic energy that drives the IP shocks leading to type-II bursts. Unlike the sun, these physical parameters cannot be directly inferred in stellar observations. Hence, scaling laws between unresolved sun-as-a-star observables, namely SXR luminosity ($L_X$) and type-II luminosity ($L_R$), and the physical properties of the associated dynamical events are crucial. Such scaling laws also provide insights into the interconnections between the particle acceleration processes across low-corona to IP space during solar-stellar 'flare- CME- type-II' events. Using long-term solar data in SXR to radio waveband, we derive a scaling law between two novel power metrics for the flare and CME-associated processes. The metrics of 'flare power' ($P_{flare}=\sqrt{L_Xϕ_{rec}}$) and 'CME power' ($P_{CME}= \sqrt{L_R {V_{CME}}^2}$), where $V_{CME}$ is the CME speed, scale as $P_{flare}\propto P_{CME}^{0.76 \pm 0.04}$. Besides, $L_X$ and $ϕ_{rec}$ show power-law trends with $P_{CME}$ with indices of 1.12$\pm$0.05 and 0.61$\pm$0.05 respectively. These power-laws help infer the spatially resolved physical parameters, $V_{CME}$ and $ϕ_{rec}$, from disk-averaged observables, $L_X$ and $L_R$ during solar-stellar 'flare- CME- type-II' events.
description: Accepted in A & A Letters
Robust Duality Learning for Unsupervised Visible-Infrared Person Re-Identification
Creators: name: Li, Yongxiang
name: Sun, Yuan
name: Qin, Yang
name: Peng, Dezhong
name: Peng, Xi
name: Hu, Peng
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Unsupervised visible-infrared person re-identification (UVI-ReID) aims to retrieve pedestrian images across different modalities without costly annotations, but faces challenges due to the modality gap and lack of supervision. Existing methods often adopt self-training with clustering-generated pseudo-labels but implicitly assume these labels are always correct. In practice, however, this assumption fails due to inevitable pseudo-label noise, which hinders model learning. To address this, we introduce a new learning paradigm that explicitly considers Pseudo-Label Noise (PLN), characterized by three key challenges: noise overfitting, error accumulation, and noisy cluster correspondence. To this end, we propose a novel Robust Duality Learning framework (RoDE) for UVI-ReID to mitigate the effects of noisy pseudo-labels. First, to combat noise overfitting, a Robust Adaptive Learning mechanism (RAL) is proposed to dynamically emphasize clean samples while down-weighting noisy ones. Second, to alleviate error accumulation-where the model reinforces its own mistakes-RoDE employs dual distinct models that are alternately trained using pseudo-labels from each other, encouraging diversity and preventing collapse. However, this dual-model strategy introduces misalignment between clusters across models and modalities, creating noisy cluster correspondence. To resolve this, we introduce Cluster Consistency Matching (CCM), which aligns clusters across models and modalities by measuring cross-cluster similarity. Extensive experiments on three benchmarks demonstrate the effectiveness of RoDE.
Evolution of lithium in the disc of the Galaxy and the role of novae
Creators: name: Borisov, Sviatoslav
name: Prantzos, Nikos
name: Charbonnel, Corinne
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Lithium plays a crucial role in probing stellar physics and stellar and primordial nucleosynthesis, as well as the chemical evolution of our Galaxy. Stars are considered to be the main source of Li, still the identity of its primary stellar producer has long been a matter of debate. In light of recent theoretical and observational results, we investigate in this study the role of two candidate sources of Li enrichment in the Milky Way, namely AGB stars and, in particular, novae. We utilize a one-zone Galactic chemical evolution model to assess the viability of AGB stars and novae as stellar sources of Li. We use recent theoretical Li yields for AGB stars, while for novae we adopt observationally inferred Li yields and recently derived Delay Time Distributions (DTDs). Subsequently, we extend our analysis using a multi-zone model with radial migration to investigate spatial variations in the evolution of Li across the Milky Way disc and compare the results with observational data for field stars and open clusters. Our analysis shows that AGB stars fail by far to reproduce the meteoritic Li abundance. In contrast, novae appear as promising candidates within the adopted framework, allowing us to quantify the contribution of each Li source at Sun's formation and today. Our multi-zone model reveals the role of the differences in the DTDs of SN Ia and novae in shaping the evolution of Li in the various galactic zones. Its results are in fair agreement with the observational data for most open clusters, but small discrepancies appear in the outer disc.
description: 13 pages, 10 figures. Under review in A&A
Leucanopsis suavina
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leucanopsis
Leucanopsis suavina

description: Leucanopsis suavina (Schaus, 1941)
Halisidota suavina Schaus, 1941: 510.
TYPE LOCALITY. — Brazil, Santa Catarina.
TYPE SPECIMEN. — Holotype female no. 34 781 (USNM).
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2) on page 359, DOI: 10.5252/z2014n2a1, http://zenodo.org/record/5395344
title: Great Lakes Coastal Justice Report
title: Urban and Regional Planning Capstone Report W'22
titleType: AlternativeTitle
Creators: name: Chung, Juan Jhong
name: Cohen, Aaron
name: Goode, Maeghen
name: Monge, Andre
name: Richards, Alexis
name: Soderberg, Emily
name: Spofford, Alex
Publisher: name: My University
Year: 2022
Subjects: subject: coastal resilience
subject: environmental justice
subject: social equity
subject: Great Lakes Restoration Initiative
subject: Justice 40
subject: CEJST
subject: Great Lakes
subject: Urban and Regional Planning
subject: FOS: Social and economic geography
subject: Architecture
subject: FOS: Civil engineering
subject: Arts

description: The Great Lakes region faces multiple intersecting challenges including climate change, a legacy of industrial pollution, and a long history of socio-economic disparities. Recent developments in federal policy are directing major investments to the region to address some of these issues. This report provides a broad overview and analysis of coastal restoration projects and their implications for social justice and equity specific to the unique coastal environments of the state of Michigan and the Great Lakes region.
Evaluating Contrastive Feedback for Effective User Simulations
Creators: name: Kruff, Andreas Konstantin
name: Breuer, Timo
name: Schaer, Philipp
Publisher: name: arXiv
Year: 2025
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3

description: The use of Large Language Models (LLMs) for simulating user behavior in the domain of Interactive Information Retrieval has recently gained significant popularity. However, their application and capabilities remain highly debated and understudied. This study explores whether the underlying principles of contrastive training techniques, which have been effective for fine-tuning LLMs, can also be applied beneficially in the area of prompt engineering for user simulations.
 Previous research has shown that LLMs possess comprehensive world knowledge, which can be leveraged to provide accurate estimates of relevant documents. This study attempts to simulate a knowledge state by enhancing the model with additional implicit contextual information gained during the simulation. This approach enables the model to refine the scope of desired documents further. The primary objective of this study is to analyze how different modalities of contextual information influence the effectiveness of user simulations.
 Various user configurations were tested, where models are provided with summaries of already judged relevant, irrelevant, or both types of documents in a contrastive manner. The focus of this study is the assessment of the impact of the prompting techniques on the simulated user agent performance. We hereby lay the foundations for leveraging LLMs as part of more realistic simulated users.
«The true estimation» e «un certo convenzionale valore». Tutela e mercato delle sculture antiche a Roma alla fine del Settecento
Creators: name: Piva, Chiara
Publisher: name: eum
Year: 2012

description: Il contributo intende analizzare il mercato delle sculture antiche nella capitale pontificia di fine Settecento dal punto di vista economico, gettando un ponte tra questa problematica materia di indagine e i più noti studi sul mercato di dipinti e stampe. La questione è osservata da un duplice punto di vista: il ruolo del museo nel condizionamento del mercato di antichità e il problema della valutazione dei costi, in una prospettiva tra Stato Pontificio e mercato inglese. Più che le normative o sporadiche proposte per fissare i prezzi delle sculture, come fattori di condizionamento del mercato emergono così da un lato i curatori del Pio-Clementino dall’altro le figure di intermediari e mercanti.

The essay analyzes the market of ancient sculptures in late XVIIIth century Rome, from an economic point of view and in connection with other well-known studies on market of paintings and printings. Considering Pontifical State and English market, the contribution offers reflections about the museum’s authority in the market of antiquities and about the evaluation of prices. More than laws or sporadic proposals to fix the prices, the main factor conditioning the market appears to be the expertise by Pio-Clementino museum’s curators and by others intermediaries and art dealers.
description: IL CAPITALE CULTURALE. Studies on the Value of Cultural Heritage, N° 5 (2012)
Financial ratios in the Greek shipping industry
Creators: name: Alexis, Emmanouil
name: Αλέξης, Εμμανουήλ
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: Financial ratios
subject: Greek shipping companies

description: Η παρούσα διπλωματική εργασία έχει σκοπό τη μελέτη, την κατανόηση και την εξέταση των χρηματοοικονομικών δεικτών, καθώς και τον τρόπο αλληλεπίδρασής τους με την ελληνική ναυτιλία. Όπως θα καταδειχθεί, η χρήση τους επιδρά και επηρεάζει σε σημαντικό βαθμό τους ανθρώπους, γύρω ή μέσα σε μία ναυτιλιακή εταιρία. Για τον λόγο αυτό, θα γίνει μία εκτεταμένη αναφορά στους χρηματοοικονομικούς δείκτες υπό το πρίσμα δώδεκα (12) ελληνικών ναυτιλιακών εταιριών, την πορεία και την εξέλιξή τους στο χρόνο, η οποία θα καταλήξει στη συγκριτική επισκόπηση των εξαγόμενων συμπερασμάτων.
Supplementary document for Quasi-static Optical Parametric Amplification - 5676829.pdf
Creators: name: Jankowski, Marc
name: Jornod, Nayara
name: Langrock, Carsten
name: Desiatov, Boris
name: Marandi, Alireza
name: Loncar, Marko
name: Fejer, Martin
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1 - A comprehensive theoretical treatment of quasi-static optical parametric amplification in the frequency domain, with an example waveguide design.
Leucanopsis nonagrioides
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leucanopsis
Leucanopsis nonagrioides

description: Leucanopsis nonagrioides (Rothschild, 1910)
Halisidota nonagrioides Rothschild, 1910a: 64.
TYPE LOCALITY. — Venezuela, [Distrito Federal], Caracas.
TYPE SPECIMEN. — Described on 12 males and 4 females. We chose the male syntype with a white printed label “Caracas, Venezuela ” / a pink handwritten label “ Halisidota nonagrioides Rothsch [ild] Type” / a round red printed label “Type”, and designated it as lectotype. We have labeled it with a round blue label “ Lectotype ” and a white printed label “ Lectotype Leucanopsis nonagrioides ♂ by Vincent & Laguerre” (BMNH).
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2) on page 359, DOI: 10.5252/z2014n2a1, http://zenodo.org/record/5395344
title: Η συμβολή των συστημάτων τηλεπικοινωνιών και πληροφορικής στη ναυτιλία. Διεθνής Ναυτιλιακός Οργανισμός (ΙΜΟ), Διεθνής Σύμβαση για την Ασφάλεια της Ζωής στην Θάλασσα (SOLAS) και πλαίσιο εφαρμογής τους
title: The contribution of telecommunications and information systems in maritime industry. International Maritime Organization (IMO), International Convention of Safety of Life at Sea (SOLAS) and implementation framework of above systems
titleType: AlternativeTitle
Creators: name: Αμαργιανού, Χριστίνα
name: Ξυγκάκη, Άννα Καρολίνα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: Νέες τεχνολογίες
subject: Συστήματα τηλεπικοινωνιών
subject: Ηλεκτρονική ναυτιλία
subject: Συστήματα πληροφορικής

description: Η παρούσα διπλωματική εργασία επιχειρεί να παρουσιάσει πώς η ένταξη των Νέων Τεχνολογιών στην Ναυτιλία έχει μεταβάλει ριζικά το modus operandi του ανθρώπινου δυναμικού και όλων των λειτουργιών του κλάδου και συγκεκριμένα πώς τα Πληροφοριακά Συστήματα στη ναυτιλία και οι τεχνολογικές εξελίξεις στις τηλεπικοινωνίες συμβάλλουν πολυδιάστατα στην βελτιστοποίηση του κλάδου. Στο πρώτο κεφάλαιο παρουσιάζεται ο στόχος της εργασίας που είναι να τονίσει την αλληλεξάρτηση που υπάρχει μεταξύ των Τηλεπικοινωνιών και των Συστημάτων Πληροφορικής στον ναυτιλιακό κλάδο. Στο δεύτερο κεφάλαιο εξετάζουμε τις έννοιες του Συστήματος, των Συστημάτων Επικοινωνίας και Πληροφορικής, και στο τρίτο κεφάλαιο επιχειρείται η παρουσίαση του τρόπου σύμφωνα με τον οποίο ο κλάδος εναρμονίζεται στην νέα πραγματικότητα μέσω των κανονισμών που επιβάλλουν οι Διεθνείς Συμβάσεις και Οργανισμοί, αλλά και πώς αυτοί υιοθετούνται στην χώρα μας, ενώ παράλληλα παραθέτει τις τροποποιήσεις της τελευταίας δεκαετίας. Το τέταρτο κεφάλαιο ασχολείται με τις Τηλεπικοινωνίες και ειδικότερα, γίνεται αναφορά στα βασικότερα συστήματα που χρησιμοποιούνται στη ναυτιλία και που βασίζονται στην δορυφορική τεχνολογία. Το πέμπτο κεφάλαιο επικεντρώνεται στα Συστήματα Πληροφορικής, τονίζεται η αναγκαιότητά τους, οι τύποι τους, και αναλύεται το σύστημα ERP που επίσης χρησιμοποιείται στις ναυτιλιακές εταιρίες. Στην ψηφιακή εποχή μας, η ναυτιλία μπορεί να χαρακτηριστεί πλέον ως «Ηλεκτρονική Ναυτιλία». Στο έκτο κεφάλαιο εξετάζονται οι διαστάσεις της ηλεκτρονικής ναυτιλίας και η ριζική αλλαγή των χαρακτηριστικών των λιμένων, έτσι ώστε να μπορούμε να μιλάμε για «έξυπνα λιμάνια» και να τα εντάσσουμε δικαίως στον κλάδο των Logistics. Τέλος, μέσω των τάσεων που διαφαίνονται και των συμπερασμάτων που παρουσιάζονται, σκοπός της εργασίας είναι να ενημερώσει σχετικά με την εφαρμογή των τεχνολογικών επιτευγμάτων στον τομέα της Ναυτιλίας, και πώς αυτά συμβάλλουν στην ασφαλή ναυσιπλοΐα και στο σύγχρονο περιβάλλον ανταγωνισμού.
Coherent states of an accelerated particle
Creators: name: Breev, A. I.
name: Gitman, D. M.
name: Derolle, Paulo A.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81V99, 22E27

description: We construct generalized coherent states (GCS) of a massive accelerated particle. This example is an important step in studying coherent states (CS) for systems with an unbounded motion and a continuous spectrum. First, we represent quantum states of the accelerated particle both known and new ones obtained by us using the method of non-commutative integration of linear differential equations. A complete set of non-stationary states for the accelerated particle is obtained. This set is expressed via elementary functions and is characterized by a continuous real parameter $η$, which corresponds to the initial momentum of the particle. A connection is obtained between these solutions and stationary states, which are determined by the Airy function. We solved the problem of constructing GCS, in particular, semiclassical states describing the accelerated particle, within the framework of the consistent method of integrals of motion. We have found different representations, coordinate one and in a Fock space, analyzing in detail all the parameters entering in these representations.
description: 22 pages, 2 figures
Impara l’arte e mettila da parte. La storia inedita del patrimonio artistico di Eni
Creators: name: Voltaggio, Mattia
name: Nardi, Lucia
Publisher: name: eum
Year: 2012

description: L'articolo ricostruisce, sulla base di fonti archivistiche, la storia del patrimonio artistico di Eni. A partire dagli anni della presidenza di Enrico Mattei (1953-1962) l'azienda energetica dello Stato italiano ha fatto dell'investimento economico in opere d'arte un asset reputazionale che ancora oggi è ben riconoscibile e si traduce in una strategia di comunicazione affidata al linguaggio di giovani artisti emergenti.

The article reconstructs the history of eni’s art collection on the basis of archival documents. Starting from Enrico Mattei's chairmanship (1953-1962), the Italian State Energy Company chose to base a part of its reputation on art heritage investment. This approach is still an integrant part of the company’s communication strategy, in the care of young emerging artists.
description: IL CAPITALE CULTURALE. Studies on the Value of Cultural Heritage, N° 5 (2012)
Improving urban bicycle infrastructure-an exploratory study based on the effects from the COVID-19 Lockdown
Creators: name: Schwarz, Lucas
name: Keler, Andreas
name: Krisp, Jukka M.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Bicycle infrastructure
subject: Cluster analysis
subject: Geographies of health
subject: Urban transport
subject: Climate change
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::300 Sozialwissenschaften

description: Introduction: During the COVID-19 lockdown significant improvements in urban air quality were detected due to the absence of motorized vehicles. It is crucial to perpetuate such improvements to maintain and improve public health simultaneously. Therefore, this exploratory study approached bicycle infrastructure in the case of Munich (Germany) to find out which specific bicycle lanes meet the demands of its users, how such infrastructure looks like, and which characteristics are potentially important. Methods: To identify patterns of bicycle infrastructure in Munich exploratory data is collected over the timespan of three consecutive weeks in August by a bicycle rider at different times of the day. We measure position, time, velocity, pulse, level of sound, temperature and humidity. In the next step, we qualitatively identified different segments and applied a cluster analysis to quantitatively describe those segments regarding the measured factors. The data allows us to identify which bicycle lanes have a particular set of measurements, indicating a favorable construction for bike riders. Results: In the exploratory dataset, five relevant segment clusters are identified: viscous, slow, inconsistent, accelerating, and best-performance. The segments that are identified as best-performance enable bicycle riders to travel efficiently and safely at amenable distances in urban areas. They are characterized by their width, little to no interaction with motorized traffic as well as pedestrians, and effective traffic light control. Discussion: We propose two levels of discussion: (1) revolves around what kind of bicycles lanes from the case study can help to increase bicycle usage in urban areas, while simultaneously improving public health and mitigating climate change challenges and (2) discussing the possibilities, limitations and necessary improvements of this kind of exploratory methodology.
The thermal emission in short GRBs with extended emission observed by Fermi/GBM
Creators: name: Chang, Xue-Zhao
name: Lü, Hou-Jun
name: Yang, Xing
name: Chen, Jia-Ming
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Short gamma-ray bursts (SGRBs) with extended emission (EE) are composed of initial main emission (ME) with a short-hard spike, followed by a long-lasting EE. Whether the ME and EE originated from the same origin or not, as well as the jet composition, remains an open question. In this paper, we present a systematic analysis of 36 gamma ray bursts (GRBs) in our sample, which are identified as the category of SGRBs with EE as observed by Fermi/Gamma-ray Burst Monitor. By extracting time-integrated spectra of ME and EE with cutoff power-law or Band models for our sample, we find that 20 out of 36 SGRBs have $α$ values that exceed the death line (e.g., -2/3) of synchrotron emission within either ME or EE phases, and we suggest that the quasi-thermal component should exist in the prompt emission. Then, we extract the time-resolved spectra of our samples, but only four GRBs are bright enough to extract the time-resolved spectra. We find that both thermal and nonthermal emissions do exist in the prompt emission of those four bright GRBs, which suggests that a hybrid jet (e.g., matter and Poynting-flux outflow) in GRBs should exist. Moreover, strong positive correlations (e.g., $F_{\rm tot}-Γ$ and $F_{\rm tot}-kT$) in the time-resolved spectra of ME and EE for those four GRBs have been discovered. This indicates that the spectral evolution of both ME and EE seem to share similar behavior, possibly from the same physical origin.
description: 30 pages, 9 figures and 11 tables, matched with the published verison
Leucanopsis ephrem
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leucanopsis
Leucanopsis ephrem

description: Leucanopsis ephrem (Schaus, 1924)
Halisidota ephrem Schaus, 1924: 36.
TYPE LOCALITY. — Bolivia, [La Paz], Rurrenabaque.
TYPE SPECIMEN. — Holotype male no. 26 329 (USNM).
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2) on page 359, DOI: 10.5252/z2014n2a1, http://zenodo.org/record/5395344
Dynamical Stability of the Laplace Resonance
Creators: name: Pucacco, Giuseppe
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analyse the stability of the de Sitter equilibria in multi-resonant planetary systems. The de Sitter equilibrium is the dynamical state of the Laplace resonance in which all resonant arguments are librating. The sequence of equilibria exists all along the possible states balancing resonance offsets and forced eccentricities. Possible additional new-de Sitter equilibria may exist when at least one of the forced eccentricities is large (the paradigmatic case is Gliese-876). In the present work, these families of equilibria are traced up to crossing exact commensurability, where approximate first-order solutions diverge. Explicit exact location of the equilibria are determined allowing us to verify the Lyapunov stability of the standard de Sitter equilibrium and of the stable branches of the additional ones.
description: Some misprint corrected
Technical Feasibility of a Hydrail Tram–Train in NA: Okanagan Valley Electric Regional Passenger Rail (OVER PR)
Creators: name: Boray, Tye
name: Hegazi, Mohamed
name: Hoffrichter, Andreas
name: Lovegrove, G. R.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2024

description: Booming population and tourism have increased congestion, collisions, climate-harming emissions, and transport inequities in The Okanagan Valley, Canada. Surveys suggest that over 30% of residents would shift from cars back to public transit and intercity tram–trains if regional service and connections were improved. Intercity streetcars (aka light-rail tram–trains) have not run in Canada since their replacement in the 1950′s by the national highway system. UBC researchers analyzed a tram–train service fashioned after the current Karlsruhe model but powered by zero-emission hydrogen fuel cell/battery hybrid rail power (hydrail) technology, along a 342 km route between Osoyoos, B.C. at the US Border and Kamloops, B.C., the Canadian VIA rail hub. Hydrail trains have operated successfully since 2018 in Germany and were demonstrated in Quebec, Canada in 2023. However, hydrail combined with tram–train technology has never been tried in Canada. Single-train simulations (STSs) confirmed its technical feasibility, showing a roughly 8 h roundtrip travel time, at an average train velocity of 86 km/h. Each hydrail tram–train consumed 2400 kWh of energy, translating to 144 kg of hydrogen fuel per roundtrip. In total, five tons of H₂/day would be consumed over 16 h daily by the 16-tram–train-vehicle fleet. The results provide valuable insights into technical aspects and energy requirements, serving as a foundation for future studies and decision-making processes in developing zero-emission passenger tram–train services not just for Okanagan Valley communities but all of Canada and NA.
Il museo partecipativo sul web: forme di partecipazione dell’utente alla produzione culturale e alla creazione di valore culturale
Creators: name: Bonacini, Elisa
Publisher: name: eum
Year: 2012

description: Obiettivo di questo lavoro è un inquadramento sia del nuovo rapporto fra il museo partecipativo e l’utenza che delle forme di partecipazione dell’utenza alla produzione culturale e alla creazione di valore culturale, alla luce delle potenzialità offerte dalle ICT, soprattutto dal web e dai vari social media. Questo nuovo rapporto, che ha le sue radici più profonde proprio nell’ampia adozione di tutte le piattaforme tecnologiche oggi in uso, consente anche una reinterpretazione del significato stesso di cultural value. Il quadro, che viene qui delineato ed arricchito da numerosi esempi soprattutto stranieri, chiarisce anche quanto l’aspetto partecipativo e l’utilizzo di tags, folksonomie e user generated contents possano incidere sulla fidelizzazione dell’utenza. Infine, in una tabella presentata a fine del contributo, si evidenziano le maggiori componenti che caratterizzano il definitivo passaggio dalla fase Museo 1.0 alla fase Museo 2.0.

The aim of this paper is a framework both of the new relationship between the participatory museum and the audience and a framework of multiple forms of audience participation in cultural production and in the creation of cultural value, given the potential offered by ICTs, especially the web and various social media. This new relationship, which has its deepest roots just in the adoption of all technology platforms in use today, also allows for a reinterpretation of the meaning of cultural value. The framework, outlined here and enriched by numerous examples especially foreigners, also makes clear that participation and use of tags, folksonomies and user-generated contents may have an impact on users loyalty. Finally, presented in a table at the end of the paper, we highlight the most important features characterizing the transition from the Museum 1.0 phase to the Museum 2.0 one.
description: IL CAPITALE CULTURALE. Studies on the Value of Cultural Heritage, N° 5 (2012)
Leucanopsis polyodonta
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leucanopsis
Leucanopsis polyodonta

description: Leucanopsis polyodonta (Hampson, 1901)
Halisidota polyodonta Hampson, 1901a: 166.
TYPE LOCALITY. — [Brazil], [Amazonas], Paritins.
TYPE SPECIMENS. — Described from 3 male and 1 female syntypes (BMNH; one male syntype labeled TYPE).
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2) on page 359, DOI: 10.5252/z2014n2a1, http://zenodo.org/record/5395344