cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Μελέτη του καρδιοτοκογραφήματος με τη χρήση προηγμένων μεθόδων επεξεργασίας σήματος στον ηλεκτρονικό υπολογιστή
Creators: name: Σπυρίδου, Κυριακή Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Καρδιοτοκογράφημα-καρδιοτοκογραφία
Κυματίδια
Επεξεργασία σήματος
Συνεχής μετασχηματισμός κυματιδίου
Αθροιστική φασματική πυκνότητα
Τοκετός
Cardiotocography-cardiotocograph
Warelets
Signal processing
Continuous Wavelet Transform
Cumulative Spectral Density
Labour

description: Η καρδιοτοκογραφία έχει καθιερωθεί σήμερα ως ο πλέον χρησιμοποιούμενος τρόπος παρακολούθησης του τοκετού. Ωστόσο, η αξία της έχει τεθεί υπό αμφισβήτηση σε πολλές μελέτες, καθώς δεν παρατηρήθηκε στατιστικά σημαντική μείωση της περιγεννητικής νοσηρότητας και θνησιμότητας όπως αρχικά αναμενόταν. Φάνηκε όμως, ότι το σήμα αυτό μεταφέρι πολύ περισσότερη πληροφορία από αυτή που χρησιμοποείται στην πράξη. Στην παρούσα μελέτη γίνεται προσπάθεια για την ανάδειξη της "κρυμμένης" αυτής ποσότητας πληροφορίας με τη χρήση νέων μεθόδων επεξεργασίας σήματος και ειδικότερα με τη χρήση του συνεχή μετασχηματισμού κυματιδίου. Γίνεται ανάλυση τόσο των προ τοκετού καταγραφών όσο και σύγκριση των καταγραφών μεταξύ των διαδοχικών σταδίων του τοκετού ανάμεσα σε φυσιολογικές και παθολογικές κυήσεις. Τα αποτελέσματα της εργασίας επαληθεύουν την αρχική υπόθεση ότι η χρήση των κυματιδίων έχει πολλά να προσφέρει και στον τομέα αυτό
description: Cardiotocography is considered nowadays as the gold standard among the ways of labour control. However, its value is questionable in a lot of studies, because there was no statistical significant reduction of perinatal morbidity or mortality, as it was initially expected. It seems though that this signal possesses much more information than the one that is used clinically. In this study there is an effort to promote this hidden information using new methods of signal processing and especially using the contiuous warelet transform. There is an analysis of cardiotocograms before the onset of labour and a comparison between cardiotocograms during the different stages of labour. The results of this study agree with the hypothesis that the use of warelets has much to offer in this domain
Wastes Reduction from Delays in Digital Service Processes by Applying Leagile Concept: A Case Study of Insurance Company AIA, Khon Kaen, Thailand
Creators: name: Boonyapon Meekaew And Panutporn Ruangchoengchum
Publisher: name: MSMIS Thammasat University
Year: 2566
Subjects: Waste reduction
Delays
Digital
Insurance business
Leagile concept

description: Journal of information systems in Business JISB, 9, 3, 22
Factors Influencing of Intention to Give Consent for User Personal Information to Business on Mobile Application
Creators: name: Sasithorn Rangseethumpunya
Publisher: name: MSMIS Thammasat University
Year: 2566
Subjects: Personal Data Protection Act
Personal information
Perceived security
Perceived trustworthiness of businesses
Privacy concerns
Research and development

description: Journal of information systems in Business JISB, 9, 3, 37
The ALPS project release 1.3: open source software for strongly correlated systems
Creators: name: Albuquerque, A. F.
name: Alet, F.
name: Corboz, P.
name: Dayal, P.
name: Feiguin, A.
name: Fuchs, S.
name: Gamper, L.
name: Gull, E.
name: Guertler, S.
name: Honecker, A.
name: Igarashi, R.
name: Koerner, M.
name: Kozhevnikov, A.
name: Laeuchli, A.
name: Manmana, S. R.
name: Matsumoto, M.
name: McCulloch, I. P.
name: Michel, F.
name: Noack, R. M.
name: Pawlowski, G.
name: Pollet, L.
name: Pruschke, T.
name: Schollwock, U.
name: Todo, S.
name: Trebst, S.
name: Troyer, M.
name: Werner, P.
name: Wessel, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present release 1.3 of the ALPS (Algorithms and Libraries for Physics Simulations) project, an international open source software project to develop libraries and application programs for the simulation of strongly correlated quantum lattice models such as quantum magnets, lattice bosons, and strongly correlated fermion systems. Development is centered on common XML and binary data formats, on libraries to simplify and speed up code development, and on full-featured simulation programs. The programs enable non-experts to start carrying out numerical simulations by providing basic implementations of the important algorithms for quantum lattice models: classical and quantum Monte Carlo (QMC) using non-local updates, extended ensemble simulations, exact and full diagonalization (ED), as well as the density matrix renormalization group (DMRG). Changes in the new release include a DMRG program for interacting models, support for translation symmetries in the diagonalization programs, the ability to define custom measurement operators, and support for inhomogeneous systems, such as lattice models with traps. The software is available from our web server at http://alps.comp-phys.org/ .
Φυσική ανοσία και λοίμωξη
Creators: name: Γκουγκουρέλας, Ιωάννης Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Φυσική ανοσία
Λοίμωξη
Innate immunity
Infection

description: Ολοένα και μεγαλύτερο ερευνητικό ενδιαφέρον στρέφεται στην μελέτη των μηχανισμών της φυσικής ανοσίας, μιας και διαφαίνεται ότι αυτή δεν αποτελεί μόνο την πρώιμη αντίδραση του ανοσιακού μηχανισμού απέναντι στα παθογόνα αλλά συνιστά και ένα σημαντικό παράγοντα που καθορίζει την έκβαση των λοιμώξεων ιδιαίτερα από ενδοκυττάρια βακτήρια. Τα κύτταρα της φυσικής ανοσίας εκτός από εκτελεστικά, είναι αυτά που προσλαμβάνουν και παρουσιάζουν το αντιγόνο στα βοηθητικά Τ λεμφοκύτταρα και τα ενεργοποιούν παράλληλα για την επιτυχή αντιμετώπιση της λοίμωξης (συνδιέγερση). Ιδιαίτερα στην περίπτωση της βρουκέλλωσης, ενός ενδημικού στην χώρα μας ενδοκυττάριου παθογόνου ενδιαφέρον παρουσιάζει η έκφραση των συνδιεγερτικών οδών και ιδιαίτερα η μελέτη του ρόλου του συνδιεγερτικού μορίου CD40 των μακροφάγων στην νόσο. Στην παρούσα εργασία μελετήθηκε πιλοτικά η έκφραση των CD14 και CD40 μορίων σε μονοπύρηνα-μακροφάγα του περιφερικού αίματος σε ασθενείς με διαγνωσμένη νόσο και συγκρίθηκε με αυτήν υγιών εθελοντών. Οι μετρήσεις έγιναν με κυτταρομετρία ροής. Από την συγκριτική μελέτη των αποτελεσμάτων δεν μπορούν να εξαχθούν στατιστικώς σημαντικά αποτελέσματα λόγω του μικρού αριθμού του δείγματος. Παρόλα αυτά διαφαίνεται ότι οι βρουκελλικοί ασθενείς παρουσιάζουν αύξηση της έκφρασης του CD40 μορίου στα CD14(+) μονοπύρηνα, ιδιαίτερα στην έξαρση της νόσου (ασθενείς 4 και 5). Απαιτείται η μελέτη μεγαλύτερου αριθμού δειγμάτων για την εξαγωγή ασφαλών συμπερασμάτων καθώς διαφαίνονται ενδιαφέρουσες μεταβολε΄ς από τα αρχικά αυτά ευρήματα
description: Research on innate immunity has been of increasing interest, since it has been obvious that it doesn't represent only the early response of the immune system against pathogens. It also constitutes an important factor that determines the outcome of infections, especially from intracellular pathogens. Macrophages are responsible for uptake and presentation of the antigen to Th helper lymphocytes and partly, the fate of successive specific immunity (induction of co-stimulation). Especially in the case of broucellosis, which is and endemic intracellular pathogen in our country, a lot of interest is drawn on the expression of the co-stimulatory pathways and specifically on the role of CD40 expresion on macrophages. In the present study the expression of CD40 on CD14+ macrophages in peripheral blood of brucellosis patients has been studied and compared with respective values of healthy volunteers. Flow cytometry has been used for the analysis. There was no statistically significant difference between the two groups studied (patients and controls) probably due to the small number of the sample studied. Nevertheless it appears that brucellosis patients present an increased expression of CD40 on CD14 macrophages, especially in the flares of the disease (patients 4 and 5). Larger number of patients should be studied in order to come to safe conclusions, since initial results seem to be very interesting
title: Applications of Artificial Intelligence in Supply Chain Management: Identification of main Research Fields and greatest Industry Interests
Creators: name: Lechtenberg, Sandra
name: Hellingrath, Bernd
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2024
Subjects: subject: 004 Computer science
subject: 330 Economics

description: 1 Introduction ..... 5
2 Theoretical Background ..... 7
2.1 Techniques of Artificial Intelligence ..... 7
2.2 Tasks from Supply Chain Management ..... 8
3 Methodology ..... 10
4 Applications of AI for SCM in research ..... 13
4.1 Descriptive Profile of Selected Articles ..... 13
4.2 Main Research Fields ..... 14
5 Industry-driven applications ..... 18
5.1 Similarities to main research fields ..... 19
5.2 Differences to main research fields ..... 20
6 Proposals for future research ..... 21
7 Conclusion ..... 24
References ..... 26
Unified Gradient Reweighting for Model Biasing with Applications to Source Separation
Creators: name: Tzinis, Efthymios
name: Bralios, Dimitrios
name: Smaragdis, Paris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Sound (cs.SD)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recent deep learning approaches have shown great improvement in audio source separation tasks. However, the vast majority of such work is focused on improving average separation performance, often neglecting to examine or control the distribution of the results. In this paper, we propose a simple, unified gradient reweighting scheme, with a lightweight modification to bias the learning process of a model and steer it towards a certain distribution of results. More specifically, we reweight the gradient updates of each batch, using a user-specified probability distribution. We apply this method to various source separation tasks, in order to shift the operating point of the models towards different objectives. We demonstrate different parameterizations of our unified reweighting scheme can be used towards addressing several real-world problems, such as unreliable separation estimates. Our framework enables the user to control a robustness trade-off between worst and average performance. Moreover, we experimentally show that our unified reweighting scheme can also be used in order to shift the focus of the model towards being more accurate for user-specified sound classes or even towards easier examples in order to enable faster convergence.
Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons
Creators: name: Tsarev, Dmitriy
name: Alodjants, Alexander
name: Ngo, The Vinh
name: Lee, Ray-Kuang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Josephson junctions (JJs) are at the heart of modern quantum technologies and metrology. In this work we establish quantum features of an atomic soliton Josephson junction (SJJ) device, which consists of two weakly-coupled condensates with negative scattering length. The condensates are trapped in a double-well potential and elongated in one dimension. Starting with classical field theory we map for the first time a two-soliton problem onto the effective two-mode Hamiltonian and perform a second quantization procedure. Compared to the conventional Bosonic Josephson junction (BJJ) condensate system, we show that the SJJ-model in quantum domain exhibits unusual features due to its effective nonlinear strength proportional to the square of total particle number, $N^2$. A novel self-tuning effect for the effective tunneling parameter is also demonstrated in the SJJ-model, which depends on the particle number and rapidly vanishes as the JJ population imbalance increases. The formation of entangled Fock state superposition is predicted for the quantum SJJ-model, revealing dominant $N00N$-state components at the "edges" for $n=0, N$ particle number. We have shown that the obtained quantum state is more resistant to few particle losses from the condensates if tiny components of entangled Fock states are present in the vicinity of the major $N00N$-state component. This peculiarity of the quantum SJJ-model establishes an important difference from its semiclassical analogue obtained in the framework of Hartree approach.
description: 36 pages, 8 figures
Understanding nuclear "pasta": current status and future prospects
Creators: name: Watanabe, Gentaro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In cores of supernovae and crusts of neutron stars, nuclei can adopt interesting shapes, such as rods or slabs, etc., which are referred to as nuclear "pasta." In recent years, we have studied the pasta phases focusing on their dynamical aspects with a quantum molecular dynamic (QMD) approach. In this article, we review these works. We also focus on the treatment of the Coulomb interaction.
description: 10 pages, 5 figures, to appear in the Proceedings of the Tours Symposium on Nuclear Physics VI (TOURS 2006)
The line-of-sight proximity effect in individual quasar spectra
Creators: name: Dall'Aglio, Aldo
name: Wisotzki, Lutz
name: Worseck, Gabor
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We exploit a set of high signal-to-noise (~70), low-resolution (R~800) quasar spectra to search for the signature of the so-called proximity effect in the HI Ly alpha forest. Our sample consists of 17 bright quasars in the redshift range 2.7
description: A&A accepted for publication, 14 pages, 24 figures (including 17 online figures)
Review on Floating Gastro-Retentive Drug Delivery System
Creators: name: Mohammad Anas Khan
name: Dr.Mohammad Wais
name: Dr.Jaya Agnihotri
name: Mohammed Jahid Halder
Publisher: name: Zenodo
Year: 2024

description: A Controlled release dose forms have been widely utilised to enhance treatment with a number ofsignificant medications. However, a number of physiological challenges, including the inability to containand localise the system within the appropriate region of the gastrointestinal tract and the extremelyfluctuating physiological conditions, pose challenges to the development processes. the way that thestomach empties. This variation could result in inconsistent bioavailability and turn around times to attainmaximum plasma levels. This review of gastroretentive medication delivery methods was written with theintention of gather the most recent research, paying particular attention to the many gastroretentivemethods that have recently pioneering approaches to oral controlled release medication delivery for sitespecific administration.We have compiled key parameters affecting stomach retention in order to better understand thephysiological challenges involved in achieving it.Drugs that are absorbed largely in the upper portions ofthe gastrointestinal (GI) tract, such as the stomach, duodenum, and jejunum, benefit more from floatingdrug delivery systems (FDDS).
Simulating Quantum Materials with Digital Quantum Computers
Creators: name: Bassman, Lindsay
name: Urbanek, Miroslav
name: Metcalf, Mekena
name: Carter, Jonathan
name: Kemper, Alexander F.
name: de Jong, Wibe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum materials exhibit a wide array of exotic phenomena and practically useful properties. A better understanding of these materials can provide deeper insights into fundamental physics in the quantum realm as well as advance technology for entertainment, healthcare, and sustainability. The emergence of digital quantum computers (DQCs), which can efficiently perform quantum simulations that are otherwise intractable on classical computers, provides a promising path forward for testing and analyzing the remarkable, and often counter-intuitive, behavior of quantum materials. Equipped with these new tools, scientists from diverse domains are racing towards achieving physical quantum advantage (i.e., using a quantum computer to learn new physics with a computation that cannot feasibly be run on any classical computer). The aim of this review, therefore, is to provide a summary of progress made towards this goal that is accessible to scientists across the physical sciences. We will first review the available technology and algorithms, and detail the myriad ways to represent materials on quantum computers. Next, we will showcase the simulations that have been successfully performed on currently available DQCs, emphasizing the variety of properties, both static and dynamic, that can be studied with this nascent technology. Finally, we work through two examples of how to map a materials problem onto a DQC, with full code included in the Supplementary Material. It is our hope that this review can serve as an organized overview of progress in the field for domain experts and an accessible introduction to scientists in related fields interested in beginning to perform their own simulations of quantum materials on DQCs.
description: 46 pages, 6 figures, 1 table, Topical Review
Μετρικές και μέθοδοι αξιολόγησης ποιότητας λειτουργίας πληροφοριακού συστήματος
Creators: name: Μουστάκα, Αικατερίνη Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ποιότητα χρήσης
Ευχρηστία
Μετρικές ποιότητας χρήσης
Μοντέλα ποιότητας λογισμικού
ISO
Αξιολόγηση ποιότητας χρήσης
Quality in use
Usability
Quality in use metrics
Software quality models
Quality in use evaluation

description: Τα πληροφοριακά συστήματα αποτελούν αναπόσπαστο τμήμα της επιχειρησιακής πραγματικότητας και η θεωρούμενη από τους χρήστες ποιότητά τους αποτελεί θεμελιώδη παράγοντα αφενός για την καλύτερη δυνατή αξιοποίηση των δυνατοτήτων που παρέχουν και αφετέρου για τη βελτίωση της παραγωγικότητας των χρηστών. Στο πρώτο μέρος της παρούσας εργασίας γίνεται προσπάθεια προσέγγισής της έννοιας της ποιότητας χρήσης, των μετρικών που συμβάλλουν στη μέτρησή της αλλά και των εργαλείων που έχουν αναπτυχθεί για την αξιολόγησή της. Στον δεύτερο μέρος, παρουσιάζεται η αξιολόγηση της ευχρηστίας του πληροφοριακού συστήματος της επιτροπής Ερευνών του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης με το ερωτηματολόγιο SUMI
description: Information systems form part of business reality and their quality in use is considered to be a fundamental factor for the best possible exploitation of the abilities they offer and for the improvement of user's productivity. In the first part of this paper the notion of quality in use is analyzed, a presentation of the metrics that help in its measurement and the tools that contribute to its evaluation are mentioned. In the second part the Information System's usability evaluation of the Research Committee of Aristotle University of Thessaloniki by using the questionnaire SUMI is presented
Self-pulsing of electron transmission by a transversal magnetic field
Creators: name: Prusty, Manamohan
name: Schanz, Holger
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The distribution of scattering delay times is analyzed for classical electrons which are transmitted through a finite waveguide. For non-zero magnetic field the distribution shows a regular pattern of maxima (logarithmic singularities). Although their location follows from a simple commensurability condition, there is no straightforward geometric explanation of this self-pulsing effect. Rather it can be understood as a time-dependent analog of transverse magnetic focusing, in terms of the stationary points of the delay time. We also discuss the possibility of singularities in the delay-time distribution for generic 2D scattering systems.
Human or Machine? It Is Not What You Write, But How You Write It
Creators: name: Leiva, Luis A.
name: Diaz, Moises
name: Ferrer, Miguel A.
name: Plamondon, Réjean
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Online fraud often involves identity theft. Since most security measures are weak or can be spoofed, we investigate a more nuanced and less explored avenue: behavioral biometrics via handwriting movements. This kind of data can be used to verify whether a user is operating a device or a computer application, so it is important to distinguish between human and machine-generated movements reliably. For this purpose, we study handwritten symbols (isolated characters, digits, gestures, and signatures) produced by humans and machines, and compare and contrast several deep learning models. We find that if symbols are presented as static images, they can fool state-of-the-art classifiers (near 75% accuracy in the best case) but can be distinguished with remarkable accuracy if they are presented as temporal sequences (95% accuracy in the average case). We conclude that an accurate detection of fake movements has more to do with how users write, rather than what they write. Our work has implications for computerized systems that need to authenticate or verify legitimate human users, and provides an additional layer of security to keep attackers at bay.
Sustainable Management of Shrimp Trawl Fishery in Tonkin Gulf, Vietnam
Creators: name: Nguyen, Thanh Viet
Publisher: name: Center for Applied Economics Research (CAER), Faculty of Economics, Kasetsart University
Year: 2011
Subjects: bioeconomic analysis, shrimp trawl fishery, fishery management, Vietnam

description: 18, 2, Applied Economics Journal
Heat transfer between nanoparticles: Thermal conductance for near-field interactions
Creators: name: Pérez-Madrid, Agustin
name: Rubí, José M.
name: Lapas, Luciano C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the heat transfer between two nanoparticles separated by a distance lying in the near-field domain in which energy interchange is due to Coulomb interactions. The thermal conductance is computed by assuming that the particles have charge distributions characterized by fluctuating multipole moments in equilibrium with heat baths at two different temperatures. This quantity follows from the fluctuation-dissipation theorem (FDT) for the fluctuations of the multipolar moments. We compare the behavior of the conductance as a function of the distance between the particles with the result obtained by means of molecular dynamics simulations. The formalism proposed enables us to provide a comprehensive explanation of the marked growth of the conductance when decreasing the distance between the nanoparticles.
Επίδραση των διαταραχών της ενδομήτριας θρέψης στα επίπεδατ των νευροπεπτιδίων
Creators: name: Στεργίου, Ευανθία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Ενδομήτρια δυστροφία
Γαλανίνη
Νεογνά διαβητικών μητέρων
Επαναπρογραμματισμός
Νοσήματα φθοράς
Ινσουλίνη
Intrauterine growth retardation
Galanin
Neonates of diabetic mothers
Remodelling
Adult disease
Insulin

description: Οι διαταραχές της ενδομήτριας θρέψης προδιαθέτουν στην εμφάνιση παχυσαρκίας, σακχαρώδη διαβήτη και άλλων νοσημάτων φθοράς, επαναπρογραμματίζοντας τους ρυθμιστικούς μηχανισμούς του μεταβολισμού. Είναι πιθανό να μεταβάλλουν τη σύνθεση, έκκριση ή λειτουργία των νευροπεπτιδίων όπως η γαλανίνη, που εμπλέκεται στη ρύθμιση της πρόσληψης τροφής και του μεταβολισμού, ιδιαίτερα των λιπιδίων και στην εμφάνιση παχυσαρκίας και σακχαρώδη διαβήτη. Ο σκοπός της μελέτης ήταν να εκτιμήσει την επίδραση των διαταραχών της ενδομήτριας θρέψης στα επίπεδ του νευροπεπτιδίύ γαλανίνη στον ομφάλιο λώρο. Μελετήθηκαν 37 νεογνά με ηλικία κύησης >34 εβδομάδων, 13 κανονικά για την ηλικία κύησης, 12 με ενδομήτρια καθυστέρηση της ανάπτυξης και 12 νεογνά μητέρων με σακχαρώδη διαβήτη. Τα επίπεδα γαλανίνης στον ομφάλιο λώρο δεν διαφέρουν μεταξύ των 3 ομάδων νεογνών. Τα επίπεδα της γαλανίνης του πλάσματος στις μητέρες με διαβήτη ήταν σημαντικά χαμηλότερα από τις υπόλοιπες μητέρες. Συμπερασματικά, οι διαταραχές της ενδομήτριας θρέψης δεν φαίνεται να επηρεάζουν τα επίπεδα γαλανίνης του αίματος του ομφάλιου λώρου
description: The intrauterine growth retardation predisposes to the development of obesity, diabetes mellitus and other adult diseases remodelling the regulator mechanisms of the metabolism. It is possible to change the synthesis, the secretion of the function of neuropeptides like galonin, which is involved in the regulation of feeding and metabolism, especially of the lipids and in the development of obesity and diabetes mellitus. The aim of the study was to assess the impact of the intrauterine growth retardation to the levels of the neuropeptide galanin in the cord blood. 37 neonates with gestational age >34 weeks, 13 appropriate for gestational age, 12 small for gestational age and 12 neonates of mothers with diabetes mellitus were studied. The galanin levels in the cord blood did not differ among the 3 groups of the neonates. The galanin blood levels at the mothers with diabetes mellitus were significantly lower comparing to the other mothers
Stability analysis of three exoplanet systems
Creators: name: Marshall, J. P.
name: Horner, J.
name: Wittenmyer, R. A.
name: Clark, J. T.
name: Mengel, M. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The orbital solutions of published multi-planet systems are not necessarily dynamically stable on timescales comparable to the lifetime of the system as a whole. For this reason, dynamical tests of the architectures of proposed exoplanetary systems are a critical tool to probe the stability and feasibility of the candidate planetary systems, with the potential to point the way towards refined orbital parameters of those planets. Such studies can even help in the identification of additional companions in such systems. Here we examine the dynamical stability of three planetary systems, orbiting HD 67087, HD 110014, and HD 133131A. We use the published radial velocity measurements of the target stars to determine the best-fit orbital solutions for these planetary systems using the Systemic console. We then employ the n-body integrator Mercury to test the stability of a range of orbital solutions lying within 3-$σ$ of the nominal best-fit for a duration of 100 Myr. From the results of the n-body integrations, we infer the best-fit orbital parameters using the Bayesian package Astroemperor. We find that both HD 110014 and HD 133131A have long-term stable architectures that lie within the 1-$σ$ uncertainties of the nominal best-fit to their previously determined orbital solutions. However, the HD 67087 system exhibits a strong tendency toward instability on short timescales. We compare these results to the predictions made from consideration of the angular momentum deficit criterion, and find that its predictions are consistent with our findings.
description: 9 pages, 5 figures, 3 tables. Accepted for publication in MNRAS
Kaiser, Thomas O., Versöhnung in Gerechtigkeit
Creators: name: Müller-Fahrenholz, Geiko
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 47 Nr. 3 (1998): Ökumenische Rundschau, Band 47, Heft 3
Neutrino and/or etherino?
Creators: name: Santilli, Ruggero Maria
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We review the insufficiencies of the hypothesis that neutrinos and quarks are physical particles in our spacetime; we introduce the hypothesis that the energy and spin needed for the synthesis of the neutron inside stars originate either from the environment or from the ether conceived as a universal medium with very high energy density via an entity here called {\it etherino,} denoted with the letter "$a$" (from the Latin aether), carrying mass and charge 0, spin 1/2 and $0.78 MeV$ energy according to the synthesis $p^+ + a + e^-\to n$; we identifies compatibility and incompatibility of the neutrino and etherino hypotheses; we review the new structure model of the neutron and hadrons at large with massive physical constituents produced free in the spontaneous decays as permitted by the covering hadronic mechanics; and we conclude with the proposal of new resolutory experiments.
description: 25 pages, 7 figures
Unsupervised machine learning of topological phase transitions from experimental data
Creators: name: Käming, Niklas
name: Dawid, Anna
name: Kottmann, Korbinian
name: Lewenstein, Maciej
name: Sengstock, Klaus
name: Dauphin, Alexandre
name: Weitenberg, Christof
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Identifying phase transitions is one of the key challenges in quantum many-body physics. Recently, machine learning methods have been shown to be an alternative way of localising phase boundaries also from noisy and imperfect data and without the knowledge of the order parameter. Here we apply different unsupervised machine learning techniques including anomaly detection and influence functions to experimental data from ultracold atoms. In this way we obtain the topological phase diagram of the Haldane model in a completely unbiased fashion. We show that the methods can successfully be applied to experimental data at finite temperature and to data of Floquet systems, when postprocessing the data to a single micromotion phase. Our work provides a benchmark for unsupervised detection of new exotic phases in complex many-body systems.
description: 19 pages, 12 figures
Fluid flow and combustion in rotary kiln
Creators: name: Alyaser, Abdelmonem H.
Publisher: name: University of British Columbia
Year: 2009

description: Thermal processing of minerals and materials within rotary kilns involves energy generation by combustion and its subsequent heat transfer (by turbulent diffusion and radiation) to the charge (the bed) and refractory walls. Thus, by influencing heat transfer, flame behavior and the combustion process can significantly influence processing conditions. Proper burner design and flame control ensure high fuel utilization efficiency, long life time of the refractory lining.(kiln walls), low pollutant emissions and high product quality. In the current work, a simplified computational fluid dynamics model of combustion aerodynamics and heat transfer within rotary kilns was developed and validated against thermal measurements from a 0.41 m I.D. by 5.5 meter long pilot rotary kiln. The validation program demonstrate the model's ability to capture the flame phenomena at the pilot scale. From this basis, the model was applied to simulate flame conditions for a 4 m I.D. by 40 m long kiln, which is more typical of the industrial scale. The effects of burner configuration and primary air ratio on the flame shape and heat transfer were investigated. These results suggest that flame length may be effectively increased by reducing the momentum of the fuel jet. The results suggest that, the primary air ratio will have marginal effect on flame behavior which is more strongly influenced by the momentum of the primary jet. Results are presented which demonstrate the effect of firing conditions; e.g. momentum of the primary jet and primary air ratio, on flame characteristics and, more importantly the axial distribution of heat transfer to both the bed and kiln refractory. From this basis, operators are given guidance on how the controllable burner parameters might be adjusted to reduce wall "hot spots"; and alleviate product quality and control of agglomeration/ringing problems. The work also indicates that for typical gas-fired operations, buoyancy effects should have little influence on flow and combustion within the hot-end of the kiln.
Algebraic extensions in free groups
Creators: name: Miasnikov, Alexei
name: Ventura, Enric
name: Weil, Pascal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E05

description: The aim of this paper is to unify the points of view of three recent and independent papers (Ventura 1997, Margolis, Sapir and Weil 2001 and Kapovich and Miasnikov 2002), where similar modern versions of a 1951 theorem of Takahasi were given. We develop a theory of algebraic extensions for free groups, highlighting the analogies and differences with respect to the corresponding classical field-theoretic notions, and we discuss in detail the notion of algebraic closure. We apply that theory to the study and the computation of certain algebraic properties of subgroups (e.g. being malnormal, pure, inert or compressed, being closed in certain profinite topologies) and the corresponding closure operators. We also analyze the closure of a subgroup under the addition of solutions of certain sets of equations.
description: 35 pages
Προσδιορισμός του ποσοστού λευκίτη και διερεύνηση της επίδρασής του στη μικροσκληρότητα και στο συντελεστή ελαστικότητας σε χαμηλής και υψηλής τήξης οδοντιατρικά κεραμικά μετά από ισοθερμική επεξεργασία και πολλαπλούς κύκλους όπτησης
Creators: name: Σπυριδόπουλος, Αναστάσιος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Λευκίτης
Μικροσκληρότητα
Συντελεστής ελαστικότητας
Ισοθερμική κατεργασία
Πολλαπλοί κύκλοι όπτησης
Leucite
Microhardness
Yourg's modulos
Isothermal anneal
Multiple firings

description: Σκοπός της μελέτης ήταν ο προσδιορισμός του ποσοστού λευκίτη και η σχέση του με την μικροσκληρότητα και τον συντελεστή ελαστικότητας μετά από ισοθερμική επεξεργασία και πολλαπλούς κύκλους όπτησης σε χαμηλής και υψηλής τήξης κεραμικά. Χρησιμοποιήθηκαν δύο χαμηλής τήξης και δύο υψηλής τήξης οδοντιατρικά κεραμικά για να κατασκευασθούν δοκίμια από μήτρες σιλικόνης.
description: The aim of the study was to determine the leucite content of thow-fusing and two high-fusing ceramics after isothermal anneals investigated, as a result of potential change in leucite contetn in the above ceramics after the heat processes mentioned. Disc specimens were made from the two low-fusing and two high-fusing commercial ceramics and treated for 6' and 12' at the maturation temperature (isothermal anneals) and 8 circles were conducted for the multiple firings. Using infrared spectroscopy (FTIR) and X-ray Diffraction analysis (XRD) for the leucite content and the microhardness tester for the microhardness and Young's modulus, the results showed the formation of sanidine crystals, the cubic formation of leucite and no statistical differences in the measurements of the mechanical properties. So, the differentiation of leucite content after heat treatment, both quantitatively and qualitatively did not alter the mechanical properties of the dental ceramics tested
Review OF GPT-3, How it outperforms Other AI Models
Creators: name: Geeta Shivani
name: Deepika Dash
Publisher: name: Zenodo
Year: 2024

description: A neural network machine learning model trained using internet data called GPT-3, or the third generationGenerative Pre-trained Transformer, can produce any kind of text. It was created by OpenAI, and it onlyneeds a tiny quantity of text as an input to produce huge amounts of accurate and complex machinegenerated text. A ground-breaking work titled Language Models Are Few-Shot Learners was released byOpen AI in May 2020. They demonstrated GPT-3, a language model that boasts 175 billion parametersand holds the record for being the largest neural network ever built. Consequently, it is 100 times biggerthan the second generation (GPT-2). Based on the tests that GPT-3 is capable of completing, we may see itas a model that is capable of completing reading comprehension and writing tasks at a level that is nearlyhuman, with the exception that it has read more text than any human will ever read in their lifetime.Consequently, is a very potential model
Highly charged ion X-rays from Electron-Cyclotron Resonance Ion Sources
Creators: name: Indelicato, Paul
name: Boucard, S.
name: Covita, D. S.
name: Gotta, D.
name: Gruber, A.
name: Hirtl, A.
name: Fuhrmann, H.
name: Bigot, E. -O. Le
name: Schlesser, S.
name: Santos, J. M. F. Dos
name: Simons, L. M.
name: Stingelin, L.
name: Trassinelli, M.
name: Veloso, J.
name: Wasser, A.
name: Zmeskal, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Radiation from the highly-charged ions contained in the plasma of Electron-Cyclotron Resonance Ion Sources constitutes a very bright source of X-rays. Because the ions have a relatively low kinetic energy ($\approx 1$ eV) transitions can be very narrow, containing only small Doppler broadening. We describe preliminary accurate measurements of two and three-electron ions with Z=16--18. We show how these measurement can test sensitively many-body relativistic calculations or can be used as X-ray standards for precise measurements of X-ray transitions in exotic atoms.
On multifluid perturbations in scalar-tensor cosmology
Creators: name: Ntahompagaze, Joseph
name: Sahlu, Shambel
name: Abebe, Amare
name: Mbonye, Manasse R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper the scalar-tensor theory is applied to the study of perturbations in a multi-fluid universe, using the 1+3 covariant approach. Both scalar and harmonic decompositions are instituted on the perturbation equations. In particular, as an application, we study perturbations on a background FRW cosmology consisting of both radiation and dust in the presence of a scalar field. We consider both radiation-dominated and dust-dominated epochs, respectively, and study the results. During the analysis, quasi-static approximation is instituted. It is observed that the fluctuations of the energy density decrease with increasing redshift, for different values of $n$ of a power law $R^{n}$ model
description: Accepted for International Journal of Modern Physics D
Comments on single trace $T\bar{T}$ and other current-current deformations
Creators: name: Giribet, Gaston
name: Oliva, Julio
name: Stuardo, Ricardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: String theory on AdS$_3$ with NS-NS fluxes admits a solvable irrelevant deformation which is close to the $T\bar{T}$ deformation of the dual CFT$_2$. This consists of deforming the worldsheet action, namely the action of the $SL(2,\mathbb{R})$ WZW model, by adding to it the operator $J^-\bar{J}^-$, constructed with two Kac-Moody currents. The geometrical interpretation of the resulting theory is that of strings on a conformally flat background that interpolates between AdS$_3$ in the IR and a flat linear dilaton spacetime with Hagedorn spectrum in the UV, having passed through a transition region of positive curvature. Here, we study the properties of this string background both from the point of view of the low-energy effective theory and of the worldsheet CFT. We first study the geometrical properties of the semiclassical geometry, then we revise the computation of correlation functions and of the spectrum of the $J^-\bar{J}^-$-deformed worldsheet theory, and finally we discuss how to extend this type of current-current deformation to other conformal models.
description: 19 pages, 1 figure. v2 references added
Huber, Wolfgang (Hrsg.), Schuld und Versöhnung in politischer Perspektive: Dietrich-Bonhoeffer-Vorlesungen in Berlin
Creators: name: Zademach, Wieland
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 47 Nr. 3 (1998): Ökumenische Rundschau, Band 47, Heft 3
Precision simulations with TAUOLA and PHOTOS
Creators: name: Was, Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The status of the Monte Carlo programs for the simulation of tau-lepton production and decay in high-energy accelerator experiments is reviewed. No significant changes in the organization of the programs were introduced since previous TAU conference, that is why we will concentrate on some physical topics: (i) For TAUOLA Monte Carlo generator of tau-lepton decays, simulation of five scalar final states based on the hadronic current became available for the first time. As an example, simple, but realistic current for final states: 2pi- pi+ 2pi0 nu_tau, pi- 4pi0 nu_tau and 3pi- 2pi+ nu_tau is presented. The current is installed into TAUOLA. (ii) For the PHOTOS Monte Carlo, which generates radiative corrections in arbirtary decays, new results on next to leading order corrections became available for some decay modes. The complete corrections were installed for leptonic Z and B decays into a pair of scalars. (iii) During conference discussions, the importance of checking the uncertainty of the overall normalization for KORALB and KKMC simulations was underlined. Necessary steps to check the uncertainty and to adjust the programs to Belle and BaBar conditions are also listed.
description: 6 two-column pages, with respect to first version some misprints etc. are removed
Comparison of crestal bone loss around two implant systems
Creators: name: Kathariya, Rahul
name: Madhura Kakade
Publisher: name: F1000Research
Year: 2015

description: Aim: Post restorative bone loss around implants is used as an important criterion for evaluating implant success. The following study was aimed at evaluating and comparing crestal bone loss (radiographically) around implants with two different collar designs- microgrooved and machined collar at baseline and at one-year post implant placement.

Conclusion: Within the limits of the study, it can be concluded that implants with a laser micro-textured collar had significantly lesser crestal bone loss when compared to implants with smooth polished collar.
Role of PDGF in wound healing: an animal study
Creators: name: Kathariya, Rahul
name: Nishit Shah
Publisher: name: F1000Research
Year: 2015

description: Objective: Platelet-derived growth factor (PDGF) is a mitogenic polypeptide, which mainly acts on connective tissue cells. It is recognized that PDGF, released during platelet aggregation, plays a crucial role in bone formation. The present study is designed to determine the role of PDGF in bone healing in an animal model.

Conclusion: To the best of our knowledge this is the first study with such a large sample size to prove the role of platelet derived growth factor in bone healing in an animal model.
Automatic Learning of Topological Phase Boundaries
Creators: name: Kerr, Alexander
name: Jose, Geo
name: Riggert, Colin
name: Mullen, Kieran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Topological phase transitions, which do not adhere to Landau's phenomenological model (i.e. a spontaneous symmetry breaking process and vanishing local order parameters) have been actively researched in condensed matter physics. Machine learning of topological phase transitions has generally proved difficult due to the global nature of the topological indices. Only recently has the method of diffusion maps been shown to be effective at identifying changes in topological order. However, previous diffusion map results required adjustments of two hyperparameters: a data length-scale and the number of phase boundaries. In this article we introduce a heuristic that requires no such tuning. This heuristic allows computer programs to locate appropriate hyperparameters without user input. We demonstrate this method's efficacy by drawing remarkably accurate phase diagrams in three physical models: the Haldane model of graphene, a generalization of the Su-Schreiffer-Haeger (SSH) model, and a model for a quantum ring with tunnel junctions. These diagrams are drawn, without human intervention, from a supplied range of model parameters.
Electroneutrality and Phase Behavior of Colloidal Suspensions
Creators: name: Denton, A. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Several statistical mechanical theories predict that colloidal suspensions of highly charged macroions and monovalent microions can exhibit unusual thermodynamic phase behavior when strongly deionized. Density-functional, extended Debye-Hückel, and response theories, within mean-field and linearization approximations, predict a spinodal phase instability of charged colloids below a critical salt concentration. Poisson-Boltzmann cell model studies of suspensions in Donnan equilibrium with a salt reservoir demonstrate that effective interactions and osmotic pressures predicted by such theories can be sensitive to the choice of reference system, e.g., whether the microion density profiles are expanded about the average potential of the suspension or about the reservoir potential. By unifying Poisson-Boltzmann and response theories within a common perturbative framework, it is shown here that the choice of reference system is dictated by the constraint of global electroneutrality. On this basis, bulk suspensions are best modeled by density-dependent effective interactions derived from a closed reference system in which the counterions are confined to the same volume as the macroions. Linearized theories then predict bulk phase separation of deionized suspensions only when expanded about a physically consistent (closed) reference system. Lower-dimensional systems (e.g., monolayers, small clusters), depending on the strength of macroion-counterion correlations, may be governed instead by density-independent effective interactions tied to an open reference system with counterions dispersed throughout the reservoir, possibly explaining observed structural crossover in colloidal monolayers and anomalous metastability of colloidal crystallites.
description: 12 pages, 5 figures. Discussion clarified, references added
Generation of d-wave coupling in the two-dimensional Hubbard model from functional renormalization
Creators: name: Krahl, H. C.
name: Müller, J. A.
name: Wetterich, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Within the two-dimensional repulsive t-t'-Hubbard model, an attractive coupling in the d-wave pairing channel is induced by antiferromagnetic fluctuations. We investigate this coupling using functional renormalization group equations. The momentum dependent d-wave coupling can be bosonized by the use of scale dependent field transformations. We propose an effective coarse grained model for the Hubbard model which is based on the exchange of antiferromagnetic and d-wave collective bosons.
description: 11 pages, 13 figures, equivalent to published version