cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geranomyia recondita subsp. recondita recondita Alexander 1921
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Geranomyia
Geranomyia recondita
Geranomyia recondita recondita alexander, 1921

description: Geranomyia recondita recondita Alexander, 1921
Original Genus: Geranomyia; Holotype: male; Type Locality: Peru, Iquitos; Description: Alexander, 1921r; Wing Reference: none; Hypopygium Reference: Alexander, 1954h; Panamanian Provinces: undetermined; Regional Distribution: Colombia, Panama, Puerot Rico.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 25, DOI: 10.5281/zenodo.3727017
Beyond Text: Implementing Multimodal Large Language Model-Powered Multi-Agent Systems Using a No-Code Platform
Creators: name: Jeong, Cheonsu
Publisher: name: arXiv
Year: 2025
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This study proposes the design and implementation of a multimodal LLM-based Multi-Agent System (MAS) leveraging a No-Code platform to address the practical constraints and significant entry barriers associated with AI adoption in enterprises. Advanced AI technologies, such as Large Language Models (LLMs), often pose challenges due to their technical complexity and high implementation costs, making them difficult for many organizations to adopt. To overcome these limitations, this research develops a No-Code-based Multi-Agent System designed to enable users without programming knowledge to easily build and manage AI systems. The study examines various use cases to validate the applicability of AI in business processes, including code generation from image-based notes, Advanced RAG-based question-answering systems, text-based image generation, and video generation using images and prompts. These systems lower the barriers to AI adoption, empowering not only professional developers but also general users to harness AI for significantly improved productivity and efficiency. By demonstrating the scalability and accessibility of No-Code platforms, this study advances the democratization of AI technologies within enterprises and validates the practical applicability of Multi-Agent Systems, ultimately contributing to the widespread adoption of AI across various industries.
description: 22 pages, 27 figures
Use of real-time Fourier Transform Infrared Reflectivity as an in situ monitor of YBCO film growth and processing
Creators: name: Koster, Gertjan
name: Huh, Jeong-Uk
name: Hammond, R. H.
name: Beasley, M. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Fourier Transform Infrared (FTIR) spectroscopy has been utilized during high rate E-beam evaporation/deposition of YBa2Cu3O7 (YBCO). The results demonstrate the great utility of FTIR as an in situ monitor of YBCO deposition and processing. We detect different (amorphous/fine polycrystalline) insulating pre-existing phases to the high Tc superconducting phase which appear to have distinct reflectivity fingerprints dominated by thin film interference effects, as a function of temperature and oxygen pressure. These fingerprints reveal some of the kinetic and thermodynamic pathways during the growth of YBCO.
description: 13 pages, 3 figures The following article has been submitted to Applied Physics Letters. After it is published, it will be found at http://apl.aip.org
PSO-PS: Parameter Synchronization with Particle Swarm Optimization for Distributed Training of Deep Neural Networks
Creators: name: Ye, Qing
name: Han, Yuxuan
name: sun, Yanan
name: Lv, JIancheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Parameter updating is an important stage in parallelism-based distributed deep learning. Synchronous methods are widely used in distributed training the Deep Neural Networks (DNNs). To reduce the communication and synchronization overhead of synchronous methods, decreasing the synchronization frequency (e.g., every $n$ mini-batches) is a straightforward approach. However, it often suffers from poor convergence. In this paper, we propose a new algorithm of integrating Particle Swarm Optimization (PSO) into the distributed training process of DNNs to automatically compute new parameters. In the proposed algorithm, a computing work is encoded by a particle, the weights of DNNs and the training loss are modeled by the particle attributes. At each synchronization stage, the weights are updated by PSO from the sub weights gathered from all workers, instead of averaging the weights or the gradients. To verify the performance of the proposed algorithm, the experiments are performed on two commonly used image classification benchmarks: MNIST and CIFAR10, and compared with the peer competitors at multiple different synchronization configurations. The experimental results demonstrate the competitiveness of the proposed algorithm.
description: 7pages
Identifying Bound Stellar Companions to Kepler Exoplanet Host Stars Using Speckle Imaging
Creators: name: Colton, Nicole M.
name: Horch, Elliott P.
name: Everett, Mark E.
name: Howell, Steve B.
name: Davidson,, James W.
name: Baptista, Brian J.
name: Casetti-Dinescu, Dana I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Kepler mission and subsequent ground-based follow-up observations have revealed a number of exoplanet host stars with nearby stellar companions. This study presents speckle observations of 57 Kepler objects of interest (KOIs) that are also double stars, each observed over a 3 to 8 year period, which has allowed us to track their relative motions with high precision. Measuring the position angle and separation of the companion with respect to the primary can help determine if the pair exhibits common proper motion, indicating it is likely to be a bound binary system. We report on the motions of 34 KOIs that have close stellar companions, three of which are triple stars, for a total of 37 companions studied. Eighteen of the 34 systems are confirmed exoplanet hosts, including one triple star, while four other systems have been subsequently judged to be false positives and twelve are yet to be confirmed as planet hosts. We find that 21 are most likely to be common proper motion pairs, 4 are line-of-sight companions, and 12 are of uncertain disposition at present. The fraction of the confirmed exoplanet host systems that are common proper motion pairs is approximately 86% in this sample. In this subsample, the planets are exclusively found with periods of less than 110 days, so that in all cases the stellar companion is found at a much larger separation from the planet host star than the planet itself. A preliminary period-radius relation for the confirmed planets in our sample suggests no obvious differences at this stage with the full sample of known exoplanets.
Rhipidia (Rhipidia) polythrix
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Rhipidia
Rhipidia polythrix

description: Rhipidia (Rhipidia) polythrix (Alexander, 1978)
Original Genus: Limonia; Holotype: male; Type Locality: Panama, Chiriqui Province, Fortuna Dam; Description: (Alexander, 1978b); Wing Reference: none; Hypopygium Reference: Alexander, 1978b; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 27, DOI: 10.5281/zenodo.3727017
Tipula (Microtipula) zeteki Alexander 1945
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bibionidae
Tipula
Tipula zeteki

description: Tipula (Microtipula) zeteki Alexander, 1945
Original Genus: Tipula; Holotype: male; Type Locality: Panama, Panama Province, Canal Zone, Barro Colorado Island; Description: Alexander, 1945x; Wing Reference: none; Hypopygium Reference: Alexander, 1945x; Panamanian Provinces: Panama; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 30, DOI: 10.5281/zenodo.3727017
Ischnotoma (Neotipula) pectinella
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tipulidae
Ischnotoma
Ischnotoma pectinella

description: Ischnotoma (Neotipula) pectinella (Alexander, 1940)
Original Genus: Tipula; Holotype: male; Type Locality: Panama, Chiriqui Province, Potrerillos; Description: (Alexander, 1940l); Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 29, DOI: 10.5281/zenodo.3727017
Testing the E_p,i - L_p,iso - T_0.45 correlation on a BeppoSAX and Swift sample of gamma-ray bursts
Creators: name: Rossi, F.
name: Guidorzi, C.
name: Amati, L.
name: Frontera, F.
name: Romano, P.
name: Campana, S.
name: Chincarini, G.
name: Montanari, E.
name: Moretti, A.
name: Tagliaferri, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a sample of 14 BeppoSAX and 74 Swift GRBs with measured redshift we tested the correlation between the intrinsic peak energy of the time-integrated spectrum, E_p,i, the isotropic-equivalent peak luminosity, L_p,iso, and the duration of the most intense parts of the GRB computed as T_0.45 ("Firmani correlation"). For 41 out of 88 GRBs we could estimate all of the three required properties. Apart from 980425, which appears to be a definite outlier and notoriously peculiar in many respects, we used 40 GRBs to fit the correlation with the maximum likelihood method discussed by D'Agostini, suitable to account for the extrinsic scatter in addition to the intrinsic uncertainties affecting every single GRB. We confirm the correlation. However, unlike the results by Firmani et al., we found that the correlation does have a logarithmic scatter comparable with that of the E_p,i-E_iso ("Amati") correlation. We also find that the slope of the product L_p,iso T_0.45 is equal to ~0.5, which is consistent with the hypothesis that the E_p,i-L_p,iso-T_0.45 correlation is equivalent to the E_p,i-E_iso correlation (slope ~0.5). We conclude that, based on presently available data, there is no clear evidence that the E_p,i-L_p,iso-T_0.45 correlation is different (both in terms of slope and dispersion) from the E_p,i-E_iso correlation.
description: 9 pages, 4 figures, revised version submitted to MNRAS
Phase coexistence and negative thermal expansion in the triple perovskite iridate Ba$_{3}$CoIr$_{2}$O$_{9}$
Creators: name: Garg, Charu
name: Cervellino, Antonio
name: Nair, Sunil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The anomalous thermal expansion in a layered 3$d$-5$d$ based triple perovskite iridate Ba$_{3}$CoIr$_{2}$O$_{9}$ is investigated using high resolution synchrotron diffraction. Below the magneto-structural transition at 107\,K, the onset of antiferromagnetic order is associated with a monoclinic distortion of the hexagonal structure. Deeper within the magnetically ordered state, a part of the monoclinic phase distorts even further, and both these structural phases co-exist down to the lowest measured temperatures. We observe negative thermal expansion in this phase co-existence regime, which appears to be intimately connected to the temperature driven relative fractions of these monoclinic phases. The significant NTE observed in this system could be driven by magnetic exchange striction, and is of relevance to a number of systems with pronounced spin orbit interactions.
Sustainable Supply Chain of Automobile Sector: A Literature Review
Creators: name: Serohi, Ajay
Publisher: name: figshare
Year: 2021
Subjects: subject: 150309 Logistics and Supply Chain Management
subject: FOS: Economics and business

description: Currently, the British automotive industry still has its own benefits within economic situations. The global automotive industry is on the verge of entering a period of comprehensive and revolutionary transformation, while sales continue to swing in favour of the innovative vehicles and environmental regulations intensify According to data from the "European Automobile Association and the British Automobile Manufacturers and Traders Association", the production of British cars in 2012 was 1.58 million, an increase of 7.7% compared to 2011, while automobile production has maintained steady growth. In 2012, 2.5 million units were supplied. During the same period, German car production declined by 8.1 percent and Spain by 16.6 percent. France lost another 12.3 percent. By 2013, the annual offer for British cars reached 1.6 million units, which has returned to levels well before the financial crisis. The overall development from the Supply Chain to the Extended Supply Chain has been carried out by various enterprises for some time. As one of the largest and dominant organisations in the world, the automotive industry can greatly influence the development of a better society. Although another combination has emerged in the field of original supply chain management, no reviewing department can fully cover the front-line research of the automotive industry. To fill this gap, this research considers the sustainable management of supply chain in the automotive industry, which was adopted around 2017. Therefore, the research has performed a persuasive bias analysis and studied the material and their contents. According to the "Icam DEFinition for Function Modeling (IDEF0)", content analysis is categorised according to several key business structures, which is a common way of separating business structures. The study provides useful principles for building the automotive supply chain of the surveyor and combines robustly distributed research theft clauses and recommendations for future investigations.
Nonnegative Matrix Factorization with Zellner Penalty
Creators: name: Corsetti, Matthew
name: Fokoué, Ernest
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: 62H35

description: Nonnegative matrix factorization (NMF) is a relatively new unsupervised learning algorithm that decomposes a nonnegative data matrix into a parts-based, lower dimensional, linear representation of the data. NMF has applications in image processing, text mining, recommendation systems and a variety of other fields. Since its inception, the NMF algorithm has been modified and explored by numerous authors. One such modification involves the addition of auxiliary constraints to the objective function of the factorization. The purpose of these auxiliary constraints is to impose task-specific penalties or restrictions on the objective function. Though many auxiliary constraints have been studied, none have made use of data-dependent penalties. In this paper, we propose Zellner nonnegative matrix factorization (ZNMF), which uses data-dependent auxiliary constraints. We assess the facial recognition performance of the ZNMF algorithm and several other well-known constrained NMF algorithms using the Cambridge ORL database.
description: 10 pages, 4 figures, 2 tables
Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array--Low Frequency Demonstrator
Creators: name: Bowman, Judd D.
name: Barnes, David G.
name: Briggs, Frank H.
name: Corey, Brian E.
name: Lynch, Merv J.
name: Bhat, N. D. Ramesh
name: Cappallo, Roger J.
name: Doeleman, Sheperd S.
name: Fanous, Brian J.
name: Herne, David
name: Hewitt, Jacqueline N.
name: Johnston, Chris
name: Kasper, Justin C.
name: Kocz, Jonathon
name: Kratzenberg, Eric
name: Lonsdale, Colin J.
name: Morales, Miguel F.
name: Oberoi, Divya
name: Salah, Joseph E.
name: Stansby, Bruce
name: Stevens, Jamie
name: Torr, Glen
name: Wayth, Randall
name: Webster, Rachel L.
name: Wyithe, J. Stuart B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Experiments were performed with prototype antenna tiles for the Mileura Widefield Array--Low Frequency Demonstrator (MWA-LFD) to better understand the widefield, wideband properties of their design and to characterize the radio frequency interference (RFI) between 80 and 300 MHz at the site in Western Australia. Observations acquired during the six month deployment confirmed the predicted sensitivity of the antennas, sky-noise dominated system temperatures, and phase-coherent interferometric measurements. The radio spectrum is remarkably free of strong terrestrial signals, with the exception of two narrow frequency bands allocated to satellite downlinks and rare bursts due to ground-based transmissions being scattered from aircraft and meteor trails. Results indicate the potential of the MWA-LFD to make significant achievements in its three key science objectives: epoch of reionziation science, heliospheric science, and radio transient detection.
description: Accepted by AJ. 17 pages with figures
Correlation and Fluctuation in Multiparticle Production: Some Closing Remarks
Creators: name: Hwa, Rudolph C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Some general comments are made on the evolution of this series of workshops and on some features of this particular Workshop without attempting to summarize all the talks presented.
description: Closing talk at the 11th Workshop on Correlation and Fluctuation in Multiparticle Production, Hangzhou, China, Nov. 21-24, 2006
Gas Purity effect on GEM Performance in He and Ne at Low Temperatures
Creators: name: Galea, R.
name: Dodd, J.
name: Ju, Y.
name: Leltchouk, M.
name: Willis, W.
name: Rehak, P.
name: Tcherniatine, V.
name: Buzulutskov, A.
name: Pavlyuchenko, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The performance of Gas Electron Multipliers (GEMs) in gaseous He, Ne, He+H2 and Ne+H2 was studied at temperatures in the range of 3-293 K. This paper reports on previously published measurements and additional studies on the effects of the purity of the gases in which the GEM performance is evaluated. In He, at temperatures between 77 and 293 K, triple-GEM structures operate at rather high gains, exceeding 1000. There is an indication that this high gain is achieved through the Penning effect as a result of impurities in the gas. At lower temperatures the gain-voltage characteristics are significantly modified probably due to the freeze-out of these impurities. Double-GEM and single-GEM structures can operate down to 3 K at gains reaching only several tens at a gas density of about 0.5 g/l; at higher densities the maximum gain drops further. In Ne, the maximum gain also drops at cryogenic temperatures. The gain drop in Ne at low temperatures can be re-established in Penning mixtures of Ne+H2: very high gains, exceeding 104, have been obtained in these mixtures at 30-77 K, at a density of 9.2 g/l which corresponds to saturated Ne vapor density at 27 K. The addition of small amounts of H2 in He also re-establishes large GEM gains above 30 K but no gain was observed in He+H2 at 4 K and a density of 1.7 g/l (corresponding to roughly one-tenth of the saturated vapor density). These studies are, in part, being pursued in the development of two-phase He and Ne detectors for solar neutrino detection.
description: 4 pages, 7 figures
The X-ray and Radio Connection in Low-luminosity Active Nuclei
Creators: name: Panessa, F.
name: Barcons, X.
name: Bassani, L.
name: Cappi, M.
name: Carrera, F. J.
name: Ho, L. C.
name: Pellegrini, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of the correlation between the nuclear 2-10 keV X-ray and radio (at 2cm, 6cm and 20cm) luminosities for a well defined sample of local Seyfert galaxies. We use a sample of low luminosity radio galaxies (LLRGs) for comparison. In both Seyfert and LLRGs samples, X-ray and radio luminosities are significantly correlated over 8 orders of magnitude, indicating that the X-ray and radio emission sources are strongly coupled. Moreover, both samples show a similar regression slope, L(X)$\propto$ L(R)^(0.97), but Seyfert galaxies are three orders of magnitude less luminous in the radio band than LLRGs. This suggests that either similar physical mechanisms are responsible for the observed emission or a combination of different mechanisms ends up producing a similar correlation slope. Indeed, the common belief for LLRG is that both the X-ray and radio emission are likely dominated by a relativistic jet component, while in Seyfert galaxies the X-ray emission probably arises from a disk-corona system and the radio emission is attributed to a jet/outflow component. We investigate the radio loudness issue in the two samples and find that the Seyfert galaxies and the LLRGs show a different distribution of the radio loudness parameters. No correlation is found between the luminosity and the radio loudness, however the latter is related to the black hole mass and anti-correlated with the Eddington ratio. The dichotomy in the radio loudness between Seyfert and LLRG observed down to low Eddington ratios, L(2-10)/L(Edd) $\sim$ 10^(-8), does not support the idea that the origin of the radio loudness is due to a switch in the accretion mode.
description: 11 pages, 7 figures, accepted for publication on A&A including referee's comments
Quantum Sensing of Spin Transport Properties of an Antiferromagnetic Insulator
Creators: name: Wang, Hailong
name: Zhang, Shu
name: McLaughlin, Nathan J.
name: Flebus, Benedetta
name: Huang, Mengqi
name: Xiao, Yuxuan
name: Fullerton, Eric E.
name: Tserkovnyak, Yaroslav
name: Du, Chunhui Rita
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Antiferromagnetic insulators (AFIs) are of significant interest due to their potential to develop next-generation spintronic devices. One major effort in this emerging field is to harness AFIs for long-range spin information communication and storage. Here, we report a non-invasive method to optically access the intrinsic spin transport properties of an archetypical AFI α-Fe2O3 via nitrogen-vacancy (NV) quantum spin sensors. By NV relaxometry measurements, we successfully detect the time-dependent fluctuations of the longitudinal spin density of α-Fe2O3. The observed frequency dependence of the NV relaxation rate is in agreement with a theoretical model, from which an intrinsic spin diffusion constant of α-Fe2O3 is experimentally measured in the absence of external spin biases. Our results highlight the significant opportunity offered by NV centers in diagnosing the underlying spin transport properties in a broad range of high-frequency magnetic materials, which are challenging to access by more conventional measurement techniques.
Modeling the Co-occurrence Principles of the Consonant Inventories: A Complex Network Approach
Creators: name: Mukherjee, Animesh
name: Choudhury, Monojit
name: Basu, Anupam
name: Ganguly, Niloy
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Speech sounds of the languages all over the world show remarkable patterns of cooccurrence. In this work, we attempt to automatically capture the patterns of cooccurrence of the consonants across languages and at the same time figure out the nature of the force leading to the emergence of such patterns. For this purpose we define a weighted network where the consonants are the nodes and an edge between two nodes (read consonants) signify their co-occurrence likelihood over the consonant inventories. Through this network we identify communities of consonants that essentially reflect their patterns of co-occurrence across languages. We test the goodness of the communities and observe that the constituent consonants frequently occur in such groups in real languages also. Interestingly, the consonants forming these communities reflect strong correlations in terms of their features, which indicate that the principle of feature economy acts as a driving force towards community formation. In order to measure the strength of this force we propose an information theoretic definition of feature economy and show that indeed the feature economy exhibited by the consonant communities are substantially better than those if the consonant inventories had evolved just by chance.
description: 15 pages, 9 figures, To be published in Int. Jour. of Modern Phy. C
Partial versus total resetting for Lévy flights in d dimensions: similarities and discrepancies
Creators: name: Di Bello, Costantino
name: Chechkin, Aleksei
name: Grzywny, Tomasz
name: Szczypkowski, Karol
name: Trojan, Bartosz
name: Palmowski, Zbigniew
Publisher: name: arXiv
Year: 2025
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: While stochastic resetting (or total resetting) is less young and more established concept in stochastic processes, partial stochastic resetting (PSR) is a relatively new field. PSR means that, at random moments in time, a stochastic process gets multiplied by a factor between 0 and 1, thus approaching but not reaching the resetting position. In this paper, we present new results on PSR highlighting the main similarities and discrepancies with total resetting. Specifically, we consider both symmetric $α$-stable Lévy processes (Lévy flights) and Brownian motion with PSR in arbitrary d dimensions. We derive explicit expressions for the propagator and its stationary measure, and discuss in detail their asymptotic behavior. Interestingly, while approaching to stationarity, a dynamical phase transition occurs for the Brownian motion, but not for Lévy flights. We also analyze the behavior of the process around the resetting position and find significant differences between PSR and total resetting.
Scattering from rough thin films: DDA-simulations
Creators: name: Parviainen, Hannu
name: Lumme, Kari
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the wave-optical light scattering properties of deformed thin circular films of constant thickness using the discrete-dipole approximation. Effects on the intensity distribution of the scattered light due to different statistical roughness models, model dependant roughness parameters, and uncorrelated random small-scale porosity of the inhomogeneous medium are studied. The usability of discrete-dipole approximation to rough-surface scattering problems is evaluated by considering thin films as computationally feasible rough-surface analogs. The effects due to small-scale inhomogeneity of the scattering medium are compared with the analytic approximation by Maxwell Garnett and the results are found to agree with the approximation.
description: Published in Journal of the Optical Society of America A, Vol. 25, Issue 1 (2008)
Can one see entanglement ?
Creators: name: Brunner, Nicolas
name: Branciard, Cyril
name: Gisin, Nicolas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The human eye can detect optical signals containing only a few photons. We investigate the possibility to demonstrate entanglement with such biological detectors. While one person could not detect entanglement by simply observing photons, we discuss the possibility for several observers to demonstrate entanglement in a Bell-type experiment, in which standard detectors are replaced by human eyes. Using a toy model for biological detectors that captures their main characteristic, namely a detection threshold, we show that Bell inequalities can be violated, thus demonstrating entanglement. Remarkably, when the response function of the detector is close to a step function, quantum non-locality can be demonstrated without any further assumptions. For smoother response functions, as for the human eye, post-selection is required.
description: 5 pages, 5 figures
Intersubband Electron Interaction in 1D-2D Junctions
Creators: name: Sablikov, V. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have shown that the electron transport through junctions of one-dimensional and two-dimensional systems, as well as through quantum point contacts, is considerably affected by the interaction of electrons of different subbands. The interaction mechanism is caused by Friedel oscillations, which are produced by electrons of the closed subbands even in smooth junctions. Because of the interaction with these oscillations, electrons of the open subbands experience a backscattering. The electron reflection coefficient, which describes the backscattering, has a sharp peak at the energy equal to the Fermi energy and may be as high as about 0.1. This result allows one to explain a number of available experimental facts.
description: 5 pages, 3 figures
Ηλεκτρονική Αναπαράσταση (παρα-) συνώνυμων παροιμιών και μετάφρασή τους στην Αγγλική
Creators: name: Χατζίκου, Αθηνά Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Παροιμίες
Ηλεκτρονική αναπαράσταση
Μετάφραση
Proverbs
Electronic representation
Translation

description: Η παρούσα μεταπτυχιακή εργασία εντάσσεται στο επιστημονικό πεδίο που μελετά τις εφαρμογές της τεχνολογίας στις Επιστήμες της Γλώσσας και της Επικοινωνίας και ειδικότερα στον κλάδο της Υπολογιστικής Γλωσσολογίας. Αντικείμενό της αποτελεί η μελέτη ενός corpus παροιμιών που καταγράφηκαν σε έργα Ελλήνων λογοτεχνών και του τρόπου μετάφρασής τους σε αγγλικά κείμενα και η ηλεκτρονική τους αναπαράσταση, η οποία εντάσσεται στο πλαίσιο μιας ευρύτερης ερευνητικής προσπάθειας που έχει ως στόχο τη δημιουργία ηλεκτρονικών λεξικών που χρησιμεύουν στην αυτόματη ανάλυση κειμένων και την ημιαυτόματη και αυτόματη μετάφραση.
description: This dissertation is under the scientific field on the applications of technology to the Language and Communication and more specifically the field of Comp. Linguistics. It consists of the study of a corpus of proverbs that were recorded in a number of books of Greek authors and their translation in the equivalent translated books in English as well as their electronic representation, the aim being to contribute to a greater research effort of creating electronic dictionaries that serve to the automatic analysis of texts and the semi-automatic and automatic translation.
An atomic Faraday beam splitter for light generated from pump degenerate four-wave mixing in a hollow-core photonic crystal fiber
Creators: name: Caltzidis, Ioannis
name: Kübler, Harald
name: Pfau, Tilman
name: Löw, Robert
name: Zentile, Mark A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate an atomic Faraday dichroic beam splitter suitable to spatially separate signal and idler fields from pump degenerate four-wave mixing in an atomic source. By rotating the plane of polarization of one mode $90^{\circ}$ with respect to the other, a subsequent polarizing beam splitter separates the two frequencies, which differ by only 13.6 GHz, and achieves a suppression of $(-26.3\pm0.1)$ and $(-21.2\pm0.1)$ dB in the two outputs, with a corresponding transmission of 97 and 99 %. This technique avoids the need to use spatial separation of four-wave mixing modes and thus opens the door for the process efficiency to be enhanced in waveguide experiments. As a proof-of-principle we generate light via four-wave mixing in $^{87}$Rb loaded into a hollow-core photonic crystal fiber and interface it with the atomic Faraday dichroic beam splitter.
description: 8 pages, 7 figures
Multi-particle Production and Thermalization in High-Energy QCD
Creators: name: Kharzeev, Dmitri
name: Levin, Eugene
name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that multi-particle production in high energy hadron and nuclear collisions can be considered as proceeding through the production of gluons in the background classical field. In this approach we derive the gluon spectrum immediately after the collision and find that at high energies it is parametrically enhanced by ln(1/x) with respect to the quasi-classical result (x is the Bjorken variable). We show that the produced gluon spectrum becomes thermal (in three dimensions) with an effective temperature determined by the saturation momentum Qs, T= c Qs/2pi during the time ~1/T; we estimate c=sqrt{2pi}/2 ~ 1.2. Although this result by itself does not imply that the gluon spectrum will remain thermal at later times, it has an interesting applications to heavy ion collisions. In particular, we discuss the possibility of Bose-Einstein condensation of the produced gluon pairs and estimate the viscosity of the produced gluon system.
description: 25 pages, 4 figures; typos fixed; discussions expanded; we added a new section IV in which we argue that at high energies the production mechanism discussed in the paper is parametrically enhanced by ln(1/x) with respect to the quasi-classical result
Ο ρόλος της ταύτισης των εργαζομένων στη σύγχρονη επιχείρηση:
Creators: name: Χριστοδούλου, Αναστασία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Ταύτιση
Εργαζόμενος
Ηγέτης
Identification
Employee
Leader

description: Η παρούσα διπλωματική διαπραγματεύεται ευρύτερα το θέμα της οργανωσιακής ταύτισης του εργαζομένου και ειδικότερα το θέμα της ταύτισης του εργαζομένου με επιμέρους σχέσεις που υφίστανται εντός ενός οργανισμού όπως τη σχέση μεταξύ του εργαζομένου και του επιβλέποντα/προϊσταμένου. Αρχικά γίνεται μια ανασκόπηση της υπάρχουσας βιβλιογραφίας των ορισμών της οργανωσιακής ταύτισης, της ταύτισης με τον επιβλέποντα και κάποιων παραγόντων που μελετώνται σε συνάρτηση με τους παραπάνω όρους. Στη συνέχεια μέσω της ανάλυσης της εμπειρικής έρευνας που έγινε σε εταιρείες της Βορείου Ελλάδας πάνω σε 227 εργαζομένους μελετώνται τα συμπεράσματα που αποδεικνύουν ότι η ταύτιση με τον προϊστάμενο συσχετίζεται σημαντικά με τον κυνισμού των εργαζομένων, τη συναισθηματική εξάντληση, τη οργανωσιακή συμπεριφορά του πολίτη και την προθυμία του εργαζομένου απέναντι στην αλλαγή αλλά και με την ευρύτερη οργανωσιακή ταύτιση του εργαζομένου. Τέλος επισημαίνονται οι περιορισμοί και οι μελλοντικές προοπτικές της έρευνας.
description: This thesis deals with the topic of organizational identity of the employee and mainly with the issue of identification of the employee with the relationships that exist within an organization. An example of these relationships is the relationship between the employee and the supervisor/leader. This thesis starts with a literature review of existing definitions of organizational identity, identification with the supervisor and some of factors that are considered to be connected with the above terms. The second part of this dissertation includes an analysis of an empirical research upon a sample of companies in Northern Greece. The questionnaires of 227 employees were analyzed and revealed that the identification of the employee with the relationship with the leader was significantly associated with employee cynicism, emotional exhaustion, organizational citizenship behavior and openness to change and generally with the organizational identity of the employee. Finally, the limitations and prospects of future research are referred.
Structure properties of even-even actinides
Creators: name: Delaroche, J. -P.
name: Girod, M.
name: Goutte, H.
name: Libert, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Structure properties of fifty five even-even actinides have been calculated using the Gogny D1S force and the Hartree-Fock-Bogoliubov approach as well as the configuration mixing method. Theoretical results are compared with experimental data.
description: 5 pages, 5 figures, proceeding of FUSION06
Comparison of structural representations for machine learning-enhanced DFT of impurity embeddings
Creators: name: Wasmer, Johannes
name: Rüssmann, Philipp
name: Blügel, Stefan
Publisher: name: Forschungzentrum Jülich
Year: 2022

description: Virtual Materials Design 2021, VMD21, online, RWTH Aachen University, Germany, 20 Jul 2021 - 21 Jul 2021
description: The acceleration or even replacement of ab initio methods for atomistic systems with surrogate models based on machine learning has gained traction in recent years [1]. This development stands on two pillars: The first one is the fast growth of materials databases, thanks in part to high-throughput calculation (HTC) infrastructures such as AiiDA [2]. The second one is advances in method development in atomistic machine learning, where finding the best representation of an atomic system as input for model training has been identified as a crucial step to success. Structural representations rely, like the Schrödinger equation, only on the atom positions and their chemical identity within a system [3], and are thus most suitable for this task.Here we investigate the possibility to accelerate the density functional theory (DFT) code juKKR [4] with machine learning starting potentials. This code has been used for instance to perform HTC on impurity embeddings into topological insulators [5]. We use a combinatorial approach to generate 7000 impurity embeddings from most elements of the periodic table into elemental crystals with the help of AiiDA. We generate their fingerprints using structural descriptors implemented in the DScribe package [6], such as smooth overlap of atomic positions. To benchmark their representational power for these embeddings, we present the results of a simple classification experiment.We acknowledge support by the Joint Lab Virtual Materials Design (JL-VMD) and thank for computing time granted by the JARA Vergabegremium and provided on the JARA Partition part of the supercomputer CLAIX at RWTH Aachen University. This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy – Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1 – 390534769, and by AIDAS2 – AI, Data Analytics and Scalable Simulation – a virtual lab between CEA, France and FZJ, Germany.
Benchmark study of symmetry-adapted ML-DFT models for magnetically doped topological insulators
Creators: name: Wasmer, Johannes
name: Mozumder, Rubel
name: Rüssmann, Philipp
name: Assent, Ira
name: Blügel, Stefan
Publisher: name: Forschungzentrum Jülich
Year: 2022

description: Psi-k 2022 Conference, psik2022, Lausanne, RWTH Aachen University, Switzerland, 22 Aug 2022 - 25 Aug 2022
description: We present a benchmark study of surrogate models for impurities embedded into crystalline solids. Using the Korringa-Kohn-Rostoker Green Function method [1], we have built databases of several thousand calculations of single impurities (monomers) embedded into different elemental crystals, as well as of the topological insulator Bi2Te3, magnetically co-doped with transition metal impurities (dimers). We predict the converged monomer impurity electron potential and the isotropic exchange interaction of the impurity dimer in the classical Heisenberg model. From these surrogates, we intend to build transferable models for larger systems in the future, which will accelerate the convergence of our DFT codes. The study compares various recent E(3)-equivariant models such as ACE and NequIP [2] in terms of performance and reproducible end-to-end workflows.[1] P. Rüßmann et al., npj Comput Mater 7, 13 (2021)[2] I. Batatia et al., arXiv:2205.06643 (2022)
Galaxy And Mass Assembly: Group and field galaxy morphologies in the star-formation rate - stellar mass plane
Creators: name: Pearson, W. J.
name: Wang, L.
name: Brough, S.
name: Holwerda, B. W.
name: Hopkins, A. M.
name: Loveday, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the environment in which a galaxy lies (i.e. field or group) and its connection with the morphology of the galaxy. This is done by examining the distribution of parametric and non-parametric statistics across the star-formation rate (SFR) - stellar mass (M$_{\star}$) plane and studying how these distributions change with the environment in the local universe ($z<0.15$). We determine the concentration (C), Gini, M$_{20}$, asymmetry, Gini-M$_{20}$ bulge statistic (GMB), 50\% light radius ($r_{50}$), total Sérsic index, and bulge Sérsic index ($n_{Bulge}$) for galaxies from the Galaxy and Mass Assembly (GAMA) survey using optical images from the Kilo Degree Survey. We determine the galaxy environment using the GAMA group catalogue and split the galaxies into field or group galaxies. The group galaxies are further divided by the group halo mass (M$_{h}$) - $11\leq\mathrm{log(M}_{h}/\mathrm{M}_\odot)<12$, $12\leq\mathrm{log(M}_{h}/\mathrm{M}_\odot)<13$, and $13\leq\mathrm{log(M}_{h}/\mathrm{M}_\odot)<14$ - and into central and satellite galaxies. The galaxies in each of these samples are then placed onto the SFR-M$_{\star}$ plane, and each parameter is used as a third dimension. We fit the resulting distributions for each parameter in each sample using two two-dimensional Gaussian distributions: one for star-forming galaxies and one for quiescent galaxies. The coefficients of these Gaussian fits are then compared between environments. Using C and $r_{50}$, we find that galaxies typically become larger as the group mass increases. This change is greater for larger galaxies. There is no indication that galaxies are typically more or less clumpy as the environment changes. Using GMB and $n_{Bulge}$, we see that the star-forming galaxies do not become more bulge or disk dominated as the group mass changes. Asymmetry does not appear to be greatly influenced by environment.
description: Accepted for publication in A&A, 23 pages, 19 figures, 2 tables, 2 appendices
Η τρομοκρατία ως πολιτική πράξη: η ιταλική εκδοχή της τρομοκρατίας υπό το πρίσμα των Ερυθρών Ταξιαρχιών
Creators: name: Μπάλλας, Νικόλαος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Τρομοκρατία
Πολιτική πράξη
Ερυθρές Ταξιαρχίες
Terrorism
Political act
Brigate Rosse

description: Η διπλωματική αυτή εργασία πραγματεύεται το φαινόμενο της τρομοκρατίας ως πολιτική πράξη. Στο πρώτο μέρος της εργασίας γίνεται μια σύντομη ιστορική αναδρομή της τρομοκρατίας και στη συνέχεια εξετάζονται οι διάφορες εκφάνσεις που προσλαμβάνει το φαινόμενο αυτό και επιχειρείται μια ομαδοποίηση τους με βάση τα ποιοτικά χαρακτηριστικά που αυτές παρουσιάζουν. Επίσης γίνεται ιδιαίτερα μνεία σε κεντρικά ζητήματα που σχετίζονται με το θέμα αυτό, όπως το πρόβλημα του ορισμού της τρομοκρατίας, αλλά και του προσδιορισμού των βασικότερων αιτιών που ευνοούν τη γιγάντωση του φαινομένου αυτού. Στο δεύτερο μέρος της εργασίας γίνεται μια σύντομη παρουσίαση της ιστορίας και της δράσης των Ερυθρών Ταξιαρχιών. Αναλύονται οι κοινωνικοοικονομικές συνθήκες που επικρατούσαν στην Ιταλία την εποχή εκείνη, των οποίων εν πολλοίς υπήρξε απότοκος η οργάνωση αυτή. Ιδιαίτερη αναφορά γίνεται στην υπόθεση της δολοφονίας του Άλντο Μόρο και στις πολύ σημαντικές συνέπειες που αυτή επέφερε τόσο στην ιστορική πορεία της οργάνωσης, αλλά και στο σύνολο της πολιτικής ζωής της Ιταλίας. Στο τέλος της εργασίας γίνεται μια γενικότερη κριτική του φαινομένου της τρομοκρατίας και παρουσιάζονται τα συμπεράσματα στα οποία κατέληξε η παρούσα μελέτη.
description: This essay discusses the phenomenon of terrorism as a political act. In the first part of this essay the historical background of terrorism is reported and then the different aspects of this phenomenon are examined, while at the same time these aspects is tried to be grouped based on their quality characteristics. Moreover, critical issues that are related to this topic, as the problem of the definition of terrorism and the determination of the major factors that are in favor of the growth of this phenomenon. In the second part of the essay, the reader is able to find the historical background and the actions of the “Brigate Rosse”. The socioeconomic circumstances of Italy of that time are examined, because they played a major role in the birth of this organization. The case of Aldo Moro’s murder is special mentioned in comparison to its grave consequences, not only in the organization itself, but in the Italian political life in general as well. At the final part of the essay, the phenomenon of terrorism is generally reviewed and the main conclusions of this study are mentioned.
Hydride superconductivity: here to stay, or to lead astray and soon go away?
Creators: name: Hirsch, J. E.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In a recent Comment (arXiv:2411.10522, Nat Rev Phys 7, 2 (2025)), fifteen prominent leaders in the field of condensed matter physics declare that hydride superconductivity is real and urge funding agencies to continue to support the field. I question the validity and constructiveness of their argument.
description: added missing labels in Fig. 1
Detection of spin reversal and nutations through current measurements
Creators: name: Fransson, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The dynamics of a single spin embedded in a the tunnel junction between ferromagnetic contacts is strongly affected by the exchange coupling to the tunneling electrons. Moment reversal of the local spin induced by the bias voltage across the junction is shown to have a measurable effect on the tunneling current. Furthermore, the frequency of a harmonic bias voltage is picked up by the local spin dynamics and transferred back to the current generating a double frequency component.
description: 5 pages, 5 figures; published version (with minor corrections)