cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Παρασκευή και μελέτη νανοσύνθετων υλικών πολυ(ηλεκτρικού βουτυλενεστέρα και νανοράβδων στροντίου ως ικριώματα ανάπλασης οστών.:
Creators: name: Νεραντζάκη, Μαρία Χαραλάμπους
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Πολυ(ηλεκτρικός βουτυλενεστέρας)
Νανοσύνθετα
Ιστομηχανική
Poly(butylene succinate)
Nanocomposites
Tissue engineering

description: H παρούσα διπλωµατική εργασία, στοχεύει στη σύνθεση ιστοµηχανικών ικριωμάτων από νανοσύνθετα υλικά πολυ(ηλεκτρικού βουτυλενεστέρα) και νανοράβδων στροντίου προς αναγέννηση οστικού ιστού. Ο πολυ(ηλεκτρικός βουτυλενεστέρας) είναι ένα βιοσυμβατό πολυμερές ενώ το στρόντιο βρέθηκε βιβλιογραφικά ότι συμβάλει στην αναγέννηση των οστών, διεγείροντας την ανάπτυξη των οστοβλαστών.Τα υλικά αυτά χρησιμοποιήθηκαν για πρώτη φορά σε ανάλογες εφαρμογές. Η προσέγγιση αυτή µε τη σειρά της αποσκοπεί στο χαρακτηρισμό των ικριωμάτων αυτών με ποικίλες τεχνικές, καθώς και στη µελέτη της συνεισφοράς τους στην οστική ανάπλαση μέσω του προσδιορισμού των βιολογικών και λειτουργικών τους ιδιοτήτων.
description: The aim of the present thesis was the stynthesis of Poly(butylene succinate) (PBSu) nanocomposites with Sr5(PO4)3OH nanorods for tissue engineering applications. PBSu a novel aliphatic polyester, is considered to be a promising material for applications as tissue engineering because it is both biodegradable and biocompatible, while strontium was found to stimulate the regeneration of neo-tissue, promoting osteoblasts proliferation. Considering the above, PBSu nanocomposites containing strontium nanorods were prepared for the first time and we examined the ability these materials to be used as potential scaffolds for bone regeneration by estimating their physical and biological properties using various techniques.
Modified gravity with $f(R) = \sqrt{R^2 - R_0^2}$
Creators: name: Baghram, Shant
name: Farhang, Marzieh
name: Rahvar, Sohrab
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Here in this work we propose a modified gravity with the action of $f(R) = \sqrt{R^2 - R_0^2}$ instead of Einstein-Hilbert action to describe the late time acceleration of the universe. We obtain the equation of the modified gravity both in the metric and Palatini formalisms. An asymptotic solution of gravity equations corresponding to a constant Ricci scalar causes a late time acceleration of the universe. We do a conformal transformation in the action of the modified gravity and obtain the equivalent minimally coupled scalar-tensor gravity. The equivalent Brans-Dicke gravity of this model is also studied. To examine this model with the observation, the perihelion Precession of the Mercury is compared with our prediction and we put an upper constraint of $R_0
description: 8 pages, 6 figure, submitted in Phys. Rev. D
Neon Cluster Formation and Phase Separation During White Dwarf Cooling
Creators: name: Caplan, M. E.
name: Horowitz, C. J.
name: Cumming, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Recent observations of Galactic white dwarfs (WDs) with Gaia suggest there is a population of massive crystallizing WDs exhibiting anomalous cooling -- the Q branch. While single-particle $^{22}$Ne sedimentation has long been considered a possible heat source, recent work suggests that $^{22}$Ne must separate into clusters, enhancing diffusion, in order for sedimentation to provide heating on the observed timescale. We show definitively that $^{22}$Ne cannot separate to form clusters in C/O WDs using molecular dynamics simulations, and we further present a general C/O/Ne phase diagram showing that strong $^{22}$Ne enrichment is not achievable for $^{22}$Ne abundance $\lesssim 30\%$. We conclude that the anomalous heating cannot be due to $^{22}$Ne cluster sedimentation and that Q branch WDs may have an unusual composition, possibly rich with heavier elements.
description: 7 pages, 4 figures, accepted for publication in ApJ Letters
Η γένεσις και η ανάδυσις του κακού και η ειδωλολατρεία κατά το Μέγα Αθανάσιο:
Creators: name: Ναλμπάντη, Ειρήνη Παύλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Μέγας Αθανάσιος
Κακό
Ειδωλολατρεία
Saint Athanasius
Evil
Idololatry

description: Επιχειρήσαμε να προσεγγίσουμε τη γένεση και την ανάδυση του κακού και την ειδωλολατρεία στη σκέψη του Μεγάλου Αθανασίου. Απορρίψαμε την υποστασιοποίηση του κακού καθώς και το γεγονός ότι ο Θεός το δημιούργησε. Λόγω της ελευθερίας της ανθρώπινης βούλησης και την αδυναμία στην διάπραξη του καλού καταλήξαμε ότι η αιτία του κακού είναι ο άνθρωπος. Έπειτα κάναμε μία εκτενή αναφορά στις πηγές, τα αίτια και στις συνέπειες του κακού. Ο ρόλος του λογικού της ψυχής και η επίνοια των ειδώλων συνεπεία του κακού. Εν κατακλείδι, αναφερθήκαμε στο ρόλο του αυτεξουσίου, στο διπλό ρόλο του θανάτου και στο κίνητρο της ενανθρωπήσεως.
description: We attempted to approach the origin and emergence of evil and idolatry in thought Athanasius the Great. We rejected the substantialization of evil and the fact that God created it. Because of the freedom of the human will and their inability to commit good, we ended up that the cause of evil is the man. Then we did an extensive report on the sources, causes and consequences of evil. The role of the reasonable soul and invent idols as a result of evil. In conclusion, we discussed the role of free will, the dual role of death and the motive of the Incarnation.
Temperature and Disorder Chaos in Three-Dimensional Ising Spin Glasses
Creators: name: Katzgraber, Helmut G.
name: Krzakala, Florent
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the effects of small temperature as well as disorder perturbations on the equilibrium state of three-dimensional Ising spin glasses via an alternate scaling ansatz. By using Monte Carlo simulations, we show that temperature and disorder perturbations yield chaotic changes in the equilibrium state and that temperature chaos is considerably harder to observe than disorder chaos.
description: 4 pages, 3 figures, 1 table
Topological superconductivity in tripartite superconductor-ferromagnet-semiconductor nanowires
Creators: name: Langbehn, Josias
name: Gonzalez, Sergio Acero
name: Brouwer, Piet W.
name: von Oppen, Felix
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by recent experiments searching for Majorana zero modes in tripartite semiconductor nanowires with epitaxial superconductor and ferromagnetic-insulator layers, we explore the emergence of topological superconductivity in such devices for paradigmatic arrangements of the three constituents. Accounting for the competition between magnetism and superconductivity, we treat superconductivity self consistently and describe the electronic properties, including the superconducting and ferromagnetic proximity effects, within a direct wave-function approach. We conclude that the most viable mechanism for topological superconductivity relies on a superconductor-semiconductor-ferromagnet arrangement of the constituents, in which spin splitting and superconductivity are independently induced in the semiconductor by proximity and superconductivity is only weakly affected by the ferromagnetic insulator.
description: 10 pages, 6 figures
FORMATION AND EVALUATION OF STUDENTS' CREATIVE THINKING SKILLS
Creators: name: Rakhmonova, Dilnura
Publisher: name: Zenodo
Year: 2025

description: This article for the first time emphasizes the role and importance of the formation of creative thinking skills in the development of creative abilities of future specialists. It is argued that creative thinking helps to find unusual solutions to problems, at the same time we should not confuse it with critical thinking, but rather should look at "brothers" who complement each other in solving impossible problems.
Quantum hyperbolic geometry
Creators: name: Baseilhac, Stephane
name: Benedetti, Riccardo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27, 57Q15; 57R20, 20G42

description: We construct a new family, indexed by the odd integers $N\geq 1$, of $(2+1)$-dimensional quantum field theories called {\it quantum hyperbolic field theories} (QHFT), and we study its main structural properties. The QHFT are defined for (marked) $(2+1)$-bordisms supported by compact oriented 3-manifolds $Y$ with a properly embedded framed tangle $L_\Ff$ and an {\it arbitrary} $PSL(2,\C)$-character $ρ$ of $Y \setminus L_\Ff$ (covering, for example, the case of hyperbolic cone manifolds). The marking of QHFT bordisms includes a specific set of parameters for the space of pleated hyperbolic structures on punctured surfaces. Each QHFT associates in a constructive way to any triple $(Y,L_\Ff,ρ)$ with marked boundary components a tensor built on the matrix dilogarithms, which is holomorphic in the boundary parameters. We establish {\it surgery formulas} for QHFT partitions functions and describe their relations with the {\it quantum hyperbolic invariants} of \cite{BB1,BB2} (either defined for unframed links in closed manifolds and characters trivial at the link meridians, or hyperbolic {\it cusped} 3-manifolds). For every $PSL(2,\mc)$-character of a punctured surface, we produce new families of conjugacy classes of "moderately projective" representations of the mapping class groups.
description: 40 pages, 19 figures; contains and supercedes our previous paper math.GT/0409282
HardwareX repository submission instructions
Creators: name: Duncombe, Todd
Publisher: name: Zenodo
Year: 2019
Subjects: HardwareX
Open Source Hardware
Open Access

description: This repository describes how to use HardwareX's approved file repositories. A file repository accompanies the submission of a manuscript using the Editorial Manager online interface and HardwareX's manuscript template. > Zenodo Instructions
 > Open Science Framework Instructions
 > Mendeley Data Instructions When submitting to HardwareX, the complete set of design files must be either uploaded to an approved online repository, uploaded at the time of submission on the online Editorial Manager submission interface as supplementary materials (CAD files, videos…), or included in the body of the manuscript (e.g. figures). The three external approved online repositories are Mendeley Data, the Open Science Framework, and Zenodo. The Open Science Framework and Zenodo repositories must be fully public at the time of submission. The Mendeley Data repository can be public or embargoed for up to one year during the review process. Once accepted the Mendeley Data repository must be made open access immediately. If the authors wish to have their design files remain private if the paper is not accepted, they should upload the files on Editorial Manager during the submission process. Other repositories (e.g. GitHub, Google Drive, etc.) are not permitted because they can be modified post-publication. This policy ensures the longevity of HardwareX articles. If desired, and in addition to the approved repository, you can include a second repository link in the "Specifications Table" of the HardwareX manuscript to a non-approved repository. Additional information can be found in HardwareX's Guide For Authors. If there is an error in the instructions or something is not clear, contact Co-Editor-In-Chief Todd Duncombe.
Μεταθανάτια γονιμοποίηση στην ελληνική έννομη τάξη:
Creators: name: Κουρκούτα, Αικατερίνη Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Μεταθανάτια
Τεχνητή
Γονιμοποίηση
Postmortem
Artificial
Insemination

description: Σκοπός της παρούσας εργασίας ήταν η μελέτη του κοινωνικού φαινομένου της μεταθανάτιας (post mortem) τεχνητής γονιμοποίησης με τη χρήση κρυοσυντηρημένου γεννητικού υλικού που εισήχθη και ρυθμίστηκε στην ελληνική έννομη τάξη με τους νόμους 3089/2002 για την «Ιατρική υποβοήθηση στην ανθρώπινη αναπαραγωγή» και 3305/2005 για την «Εφαρμογή της ιατρικώς υποβοηθούμενης αναπαραγωγής». Στην αρχή της μελέτης δόθηκε ο ορισμός της ιατρικής αυτής μεθόδου κατά την έννοια των σχετικών άρθρων των ανωτέρω νομοθετημάτων. Στη συνέχεια επιχειρήθηκε μια απόπειρα παρουσίασης των σοβαρότερων ηθικών προβληματισμών και ζητημάτων επιτρεπτού που ανακύπτουν από την υιοθέτηση της μεθόδου της μεταθανάτιας τεχνητής γονιμοποίησης κάτω από ένα θεωρητικοκριτικό πρίσμα, κυρίως σχετικά με όσα διακυβεύονται μέσα στη κοινωνία από την άποψη των αξιών. Περαιτέρω, παρουσιάστηκαν αναλυτικά οι γενικές και ειδικές προϋποθέσεις που θέτει το ελληνικό δίκαιο για τη διενέργεια της υπό εξέταση μεθόδου. Ακολούθως εκτέθηκαν οι συνέπειες της νομοθετικής αυτής ρύθμισης τόσο στο δίκαιο της συγγένειας, όσο και στο πεδίο του κληρονομικού δικαίου. Επιπλέον, επιχειρήθηκε μία παράθεση εμπειρικών κοινωνιολογικών δεδομένων από την εφαρμογή της μεθόδου στην ελληνική έννομη τάξη, καθώς επίσης και μια παρουσίαση της στάσης των ελληνικών δικαστηρίων απέναντι στο συγκεκριμένο φαινόμενο. Η παρούσα εργασία τελειώνει με ορισμένα συμπεράσματα που μπορούν να εξαχθούν από τη μελέτη του σχετικού ζητήματος.
description: The aim of the present thesis was the study of the social phenomenon of post-mortem artificial insemination (using cryopreserved genetic material), which was introduced and adjusted in Greek legal system with laws 3089/2002 "Medically assisted human reproduction" and 3305/2005 "Implementation of medically assisted reproduction". At the beginning of the study was examined the definition given for this medicine method, within the meaning of the relevant articles of the above legislation. Then was tried an attempt to present the most serious ethical concerns and issues permitted arising from the adoption of the method of post-mortem insemination under a critical light, especially on what is at stake in the society in terms of values. Further, was presented in details the general and special conditions laid down by Greek law to perform the method. Then was exposed the consequences of that legislation in the law of affinity and in the field of inheritance law. Furthermore, was attempted a quotation from empirical and sociological data from the application of the method in Greek law, as well as a presentation of the attitude of Greek courts towards this phenomenon. This paper ends with some conclusions can be drawn from the study of the matter.
Coexistence of Ferromagnetism and Topology by Charge Carrier Engineering in intrinsic magnetic topological insulator MnBi4Te7
Creators: name: Chen, Bo
name: Fei, Fucong
name: Wang, Dinghui
name: Jiang, Zhicheng
name: Zhang, Bo
name: Guo, Jingwen
name: Xie, Hangkai
name: Zhang, Yong
name: Naveed, Muhammad
name: Du, Yu
name: Sun, Zhe
name: Zhang, Haijun
name: Shen, Dawei
name: Song, Fengqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Intrinsic magnetic topological insulators (MTIs) MnBi2Te4 and MnBi2Te4/(Bi2Te3)n are expected to realize the high-temperature quantum anomalous Hall effect (QAHE) and dissipationless electrical transport. Extensive efforts have been made on this field but there is still lack of ideal MTI candidate with magnetic ordering of ferromagnetic (FM) ground state. Here, we demonstrate a MTI sample of Mn(Bi0.7Sb0.3)4Te7 which holds the coexistence of FM ground state and topological non-triviality. The dramatic modulation of the magnetism is induced by a charge carrier engineering process by the way of Sb substitution in MnBi4Te7 matrix with AFM ordering. The evolution of magnetism in Mn(Bi1-xSbx)4Te7 is systematically investigated by magnetic measurements and theoretical calculations. The clear topological surface states of the FM sample of x = 0.3 are also verified by angle-resolved photoemission spectra. We also aware that the FM sample of x = 0.3 is close to the charge neutral point. Therefore, the demonstration of intrinsic FM-MTI of Mn(Bi0.7Sb0.3)4Te7 in this work sheds light to the further studies of QAHE realization and optimizations.
P- and T-violating $πN N$ form factor
Creators: name: Kondratyuk, S.
name: Blunden, P. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The form factor of the parity and time-reversal violating (PTV) pion-nucleon interaction is calculated from one-loop vertex diagrams. The degrees of freedom included in the effective lagrangian are nucleons, pions, $η$, $ρ$ and $ω$ mesons. We show that by studying the form factor one can constrain the PTV meson-nucleon coupling constants. We evaluate the mean square radius associated with the PTV $πN N$ vertex. Using the mean square radius, we estimate the effect of the PTV $πN N$ vertex on the neutron electric dipole moment, and find a very small correction. We also extract the renormalisation group $β$ function and use it to discuss evolution of the PTV $πN N$ coupling constant beyond the hadronic mass scale.
description: 14 pages, 2 figures. Added discussion of neutron EDM; to be published in Nucl.Phys.A
Προσομοίωση ρομποτικών εφαρμογών με χρήση του λογισμικού V-Rep.:
Creators: name: Μιχαηλίδης, ΝΙκόλαος Φωτίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ρομποτική
Προσομοίωση
Robotics
Simulation
3.

description: Στην εργασία παρουσιάζεται ο προσομοιωτής ρομποτικών εφαρμογών V-Rep. Η προσομοιώση αποτελεί ένα σημαντικό και χρήσιμο εργαλείο για τους ερνευτήτες δεδομένου ότι μέσω αυτής καταφέρουν να εξοικονομήσουν χρόνο από τη σχεδίαση, να μειώσουν σημαντικά το κόστος κατασκευής και ανάπτυξης και να ελαχιστοποιήσουν τις πιθανότητες λάθους σχεδίασης αλγορίθμων και μηχανολογικής κατασκευής. Προς επιβεβαίωση της αποτελεσματικότητας της λειτουργίας του προσομοιώτη σχεδιάστηκε το ρομποτικό όχημα ‘GEARS’ και εφαρμόστηκαν ένας αλγόριθμος αποφυγής εμποδιών και ένας δεύτερος ιχνηλασίας γραμμών. Πειραματικά αποτελέσματα επιβεβαιώνουν την αποτελεσματικότητα των δυο αλγορίθμων.
description: This paper presents the simulator of robotics applications V-Rep. Simulation is an important and useful tool for researchers since through this manage to save time from design, to significantly reduce the construction and development cost and to minimize the chances of error algorithm design and mechanical engineering. To confirm the effectiveness of simulator designed robotic vehicle 'GEARS' and implemented one algorithm to avoid obstacles and a second trace lines. Experimental results confirm the effectiveness of the two algorithms.
On sparse identification of complex dynamical systems: A study on discovering influential reactions in chemical reaction networks
Creators: name: Harirchi, Farshad
name: Kim, Doohyun
name: Khalil, Omar
name: Liu, Sijia
name: Elvati, Paolo
name: Baranwal, Mayank
name: Hero, Alfred
name: Violi, Angela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A wide variety of real life complex networks are prohibitively large for modeling, analysis and control. Understanding the structure and dynamics of such networks entails creating a smaller representative network that preserves its relevant topological and dynamical properties. While modern machine learning methods have enabled identification of governing laws for complex dynamical systems, their inability to produce white-box models with sufficient physical interpretation renders such methods undesirable to domain experts. In this paper, we introduce a hybrid black-box, white-box approach for the sparse identification of the governing laws for complex, highly coupled dynamical systems with particular emphasis on finding the influential reactions in chemical reaction networks for combustion applications, using a data-driven sparse-learning technique. The proposed approach identifies a set of influential reactions using species concentrations and reaction rates,with minimal computational cost without requiring additional data or simulations. The new approach is applied to analyze the combustion chemistry of H2 and C3H8 in a constant-volume homogeneous reactor. The influential reactions determined by the sparse-learning method are consistent with the current kinetics knowledge of chemical mechanisms. Additionally, we show that a reduced version of the parent mechanism can be generated as a combination of the significantly reduced influential reactions identified at different times and conditions and that for both H2 and C3H8 fuel, the reduced mechanisms perform closely to the parent mechanisms as a function of the ignition delay time over a wide range of conditions. Our results demonstrate the potential of the sparse-learning approach as an effective and efficient tool for dynamical system analysis and reduction. The uniqueness of this approach as applied to combustion systems lies in the ability to identify influential reactions in specified conditions and times during the evolution of the combustion process. This ability is of great interest to understand chemical reaction systems.
Play therapy: the patterns and processes of change in maltreated children
Creators: name: Mills, Barbara C.
Publisher: name: University of British Columbia
Year: 2009

description: This qualitative case study research chronicles the process of change during play therapy of two children who experienced maternal loss and maltreatment during the first two years of life. At the outset of this study both children presented with evidence of insecure attachment as well as symptoms and behaviour consistent with maltreatment. Over the course of a year of therapy, both demonstrated profound change and healing. The study concludes that the children were able to utilize the safety, consistency, and affirmation of the therapeutic relationship to discard old models of relating, and to construct new internal representational models of self and of self in relation to others. Once old models were discarded, the children returned to the earliest stage of damage and reworked attachment salient developmental tasks while in relation with the therapist. The projective materials of the play therapy space provided the medium through which the children externalized selected trauma and critical incidents that shaped their maladaptive models. As the therapist gave voice to the previously unacknowledged experiences, the child's authentic self was able to disentangle from the trauma. The pattern by which the self emerged and developed over the course of therapy approximated developmental pathways described by prominent self theorists (Bretherton & Beeghly, 1982; Mahler et.al, 1975; Stern, 1985). Change was exhibited in the classroom approximately 10 to 14 weeks after the children were initially seen in therapy.
Sharp Hardy inequalities in an exterior of a ball
Creators: name: Kutev, Nikolai
name: Rangelov, Tsviatko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 26D10, 35P15

description: New Hardy type inequalities in sectorial area and as a limit in an exterior of a ball are proved. Sharpness of the inequalities is shown as well.
Παρασκευή και μελέτη νανοσύνθετων υλικών πολυαιθυλενίου υψηλής πυκνότητας με μεσοπορώδη νανοσωματίδια:
Creators: name: Παλάνη, Αικατερίνη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Πολυαιθυλένιο Υψηλής Πυκνότητας
Μεσοπορώδη Πυριτία
Νανοσύνθετα Υλικά
High Density Polyethylene
Mesoporous Silica
Nanocomposites Materials

description: Σκοπός της παρούσας μεταπτυχιακής εργασίας ήταν η μελέτη της επίδρασης του εμπλουτισμού του πολυαιθυλενίου υψηλής πυκνότητας (HDPE) με μεσοπορώδη νανοσωματιδία. Τα νανοσωματίδια αυτά ήταν δύο τύπων, MCF (Mesoporus Cellular Foam) με μεγέθη πόρων 50nm και 12nm και SBA-15 (Santa Barbara Amorfus) με μέγεθος πόρων 10nm. Αυτή η μελέτη επιτεύχθηκε με τη δημιουργία νανοσύνθετων υλικών του HDPE με τα νανοπρόσθετα σε συγκεκριμένες συγκεντρώσεις 1, 2.5, 5 και 10 κ.β% με την τεχνική ανάμιξης τήγματος. Οι τεχνικές που χρησιμοποιήθηκαν ήταν η Διαφορική Θερμιδομετρία Σάρωσης (DSC), η Ηλεκτρονική Μικροσκοπία Σάρωσης (SEM), η Δυναμική Θερμομηχανική Ανάλυση (DMTA ή DMA), η Φασματοσκοπία Υπερύθρου (FT-IR), η Περίθλαση Ακτίνων-Χ (XRD), καθώς και η μέτρηση της αντοχής στον εφελκυσμό και στην κρούση. Επίσης, μελετήθηκε η επίδραση των διαφορετικών νανοσωματιδίων MCF στη UV σταθερότητα του HDPE.
description: The aim of the present thesis was to study the effect of enrichment of high density polyethylene (HDPE) with mesoporous nanoparticles. These nanoparticles were of two types, MCF (Mesoporus Cellular Foam) with pore sizes 50nm and 12nm and SBA-15 (Santa Barbara Amorfus) pore size 10nm. This study was accomplished by the preparation of nanocomposite materials with HDPE and these nanoadditives in specific concentrations of 1, 2.5, 5 and 10 wt% by melt mixing. The techniques that were used were Differential Scanning Calorimetry (DSC), Scanning Electron Microscopy (SEM), Dynamic Thermomechanical Analysis (DMTA or DMA), Fourier Transform Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD) and the measurement of tensile strength and impact resistance. We also studied the effect of different MCF nanoparticles in UV stability of HDPE.
Supplementary tables 'Plasma protein profiles associated with anxiety and/or depressive symptoms in young IBD patients and the effect of cognitive behavioral therapy'
Creators: name: Brink, Gertrude Van Den
name: Costes, Lea M.M.
name: Tindemans, Irma
name: Stapersma, Luuk
name: Rizopolous, Dimitris
name: C. Janneke Van Der Woude
name: H. Rolien C. Raatgeep
name: Utens, Elisabeth M.W.J.
name: Samsom, Janneke N.
name: Escher, Johanna C
Publisher: name: Zenodo
Year: 2019

description: Supplementary Tables manuscript 'Plasma protein profiles associated with anxiety and/or depressive symptoms in young IBD patients and the effect of cognitive behavioral therapy'
Quark-Lepton Unification and Eight-Fold Ambiguity in the Left-Right Symmetric Seesaw Mechanism
Creators: name: Hosteins, Pierre
name: Lavignac, Stephane
name: Savoy, Carlos A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In many extensions of the Standard Model, including a broad class of left-right symmetric and Grand Unified theories, the light neutrino mass matrix is given by the left-right symmetric seesaw formula $M_ν= f v_L - \frac{v^2}{v_R} Y_νf^{-1} Y_ν$, in which the right-handed neutrino mass matrix and the $SU(2)_L$ triplet couplings are proportional to the same matrix f. We propose a systematic procedure for reconstructing the $2^n$ solutions (in the n-family case) for the matrix f as a function of the Dirac neutrino couplings $(Y_ν)_{ij}$ and of the light neutrino mass parameters, which can be used in both analytical and numerical studies. We apply this procedure to a particular class of supersymmetric SO(10) models with two 10-dimensional and a pair of $126 + \bar{126}$ representations in the Higgs sector, and study the properties of the corresponding 8 right-handed neutrino spectra. Then, using the reconstructed right-handed neutrino and triplet parameters, we study leptogenesis and lepton flavour violation in these models, and comment on flavour effects in leptogenesis in the type I limit. We find that the mixed solutions where both the type I and the type II seesaw mechanisms give a significant contribution to neutrino masses provide new opportunities for successful leptogenesis in SO(10) GUTs.
description: 31 pages, 32 figures. Appendix augmented with useful analytic formulae, a few typos corrected, 2 references added
Coherent structures and secondary motions in open duct flow
Creators: name: Sakai, Yoshiyuki
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: Offene Kanalstroemung
Kohaerente Strukturen
Sekundaerstroemung
Direkte Numerische Simulation
Open duct flow
Coherent structures
Secondary flow
Direct Numerical Simulation

description: This book addresses the turbulence-driven mean secondary motions in straight open duct flow with rectangular cross-section. Despite its weak intensity, the secondary flow influences the primary velocity distribution significantly. Coherent structure analysis showed that the secondary flow is the statistical footprint of quasi-streamwise vortices, and the unique mean flow pattern is a consequence of a vortex sorting mechanism that is only effective in the vicinity of free surface.
title: The NOAA Ocean Acidification Program 2024 National Oceanographic Partnership Program Marine Carbon Dioxide Removal Meeting Summary Report
Creators: name: Clevenger, Samantha
name: Mackay, Alexandra
name: Kitch, Gabriella
name: Grabb, Kalina C.
Publisher: name: NOAA Ocean Acidification Program
publisherIdentifier: https://ror.org/02bfn4816
publisherIdentifierScheme: ROR
Year: 2025

description: Marine carbon dioxide removal (mCDR) project research groups funded under the fiscal years (FYs) 2022 and 2023 NOAA Ocean Acidification Program (OAP)-managed National Oceanographic Partnership Program (NOPP) funding call gathered from February 16-17, 2024, in New Orleans, LA, USA, to discuss project progress and next steps towards successful completion of their project goals.
Brane-induced Skyrmions: Baryons in Holographic QCD
Creators: name: Nawa, Kanabu
name: Suganuma, Hideo
name: Kojo, Toru
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study baryons in holographic QCD with $D4/D8/\bar{D8}$ multi $D$ brane system. In holographic QCD, the baryon appears as a topologically non-trivial chiral soliton in a four-dimensional effective theory of mesons, which is called `Brane-induced Skyrmion'. We derive and calculate the Euler-Lagrange equation for the hedgehog configuration with chiral profile $F(r)$ and $ρ$-meson profile $\tilde G(r)$, and obtain the soliton solution of the holographic QCD.
description: 5 pages, 6 figures
MPEC 2024-T137 : 2024 TA3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TA3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Integral Equations & Model Reduction For Fast Computation of Nonlinear Periodic Response
Creators: name: Buza, Gergely
name: Haller, George
name: Jain, Shobhit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Dynamical Systems (math.DS)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose a reformulation for the integral equations approach of Jain, Breunung \& Haller [Nonlinear Dyn. 97, 313--341 (2019)] to steady-state response computation for periodically forced nonlinear mechanical systems. This reformulation results in additional speed-up and better convergence. We show that the solutions of the reformulated equations are in one-to-one correspondence with those of the original integral equations and derive conditions under which a collocation type approximation converges to the exact solution in the reformulated setting. Furthermore, we observe that model reduction using a selected set of vibration modes of the linearized system substantially enhances the computational performance. Finally, we discuss an open-source implementation of this approach and demonstrate the gains in computational performance using three examples that also include nonlinear finite-element models.
Alcohol-dependent men and their spouses: an ecosystemic analysis of empirically-derived alcoholic subtypes
Creators: name: Weir, Warren Bradley
Publisher: name: University of British Columbia
Year: 2009

description: This study involved the ecosystemic assessment of empirically-derived alcoholic subtypes in a group of men (n=130) living in intact family situations. Subtypes were derived by cluster analyzing a broad base of alcohol-use related variables. The differential psychological functioning of the alcoholic men and their non-alcoholic wives, grouped according to alcoholic subtypes, was assessed using an ecosystemic framework. Specifically, the individual, marital, family, social and therapeutic levels of the ecosystem were evaluated with respect to (a) the alcoholic subtypes, and, (b) differences between the alcoholic husbands and their non-alcoholic wives. The cluster analysis resulted in a three-group alcoholic typology. Group One, labelled Severe, Irregular Pattern, was characterized by high levels of lifetime alcoholism, alcohol consumption, alcohol-related consequences, familial alcoholism, and episodic drinking out of the home. Group Two, labelled Moderate, Mixed Pattern, was characterized by lower levels of dependency and consumption, tending to drink mostly at night, in the home, and alone. Group Three, labelled Severe, Steady Pattern, was characterized by severe dependency and high-rate, daily consumption, tending to drink alone and at home. The derived alcoholic typology satisfied criteria for adequacy, showing: homogeneity within subtypes, heterogeneity across subtypes, comprehensiveness, specificity, multidimensionality, utility, and evidence of external validity. Groups One and Three were similar to the binge/steady distinction reported in the subtyping literature, however, severity of dependency surfaced as an additional subtyping factor and a third subtype emerged. The ecosystemic analysis of the psychosocial functioning of the subtypes indicated a number of important differences. First, there were strong indications that the nonalcoholic wives were functioning better than the alcoholic husbands. Second, subtype differences existed across the ecosystemic levels. Third, subtype differences varied with person (i.e. alcoholic husbands vs. nonalcoholic wives), especially at the marital and family levels. The results of the study point to the efficacy of a multidimensional, empirical approach to subtyping. The ecosystemic analysis results are seen as confirming theoretical ideas regarding how families organize themselves differentially and with different degrees of success to various patterns of alcoholism.
Poincaré and sl(2) algebras of order 3
Creators: name: Goze, M.
name: de Traubenberg, M. Rausch
name: Tanasa, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 17A40; 17A42; 17A70; 17B81

description: In this paper we initiate a general classification for Lie algebras of order 3 and we give all Lie algebras of order 3 based on $\mathfrak{sl}(2,\mathbb C)$ and $\mathfrak{iso}(1,3)$ the Poincaré algebra in four-dimensions. We then set the basis of the theory of the deformations (in the Gerstenhaber sense) and contractions for Lie algebras of order 3.
description: Title and presentation changed
Design and Simulation of a Hybrid Architecture for Edge Computing in 5G and Beyond
Creators: name: Rahimi, Hamed
name: Picaud, Yvan
name: Costanzo, Salvatore
name: Madhusudan, Giyyarpuram
name: Boissier, Olivier
name: Singh, kamal Deep
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Edge Computing in 5G and Beyond is a promising solution for ultra-low latency applications (e.g. Autonomous Vehicle, Augmented Reality, and Remote Surgery), which have an extraordinarily low tolerance for the delay and require fast data processing for a very high volume of data. The requirements of delay-sensitive applications (e.g. Low latency, proximity, and Location/Context-awareness) cannot be satisfied by Cloud Computing due to the high latency between User Equipment and Cloud. Nevertheless, Edge Computing in 5G and beyond can promise an ultra-high-speed caused by placing computation capabilities closer to endpoint devices, whereas 5G encourages the speed rate that is 200 times faster than 4G LTE-Advanced. This paper deeply investigates Edge Computing in 5G and characterizes it based on the requirements of ultra-low latency applications. As a contribution, we propose a hybrid architecture that takes advantage of novel and sustainable technologies (e.g. D2D communication, Massive MIMO, SDN, and NFV) and has major features such as scalability, reliability and ultra-low latency support. The proposed architecture is evaluated based on an agent-based simulation that demonstrates it can satisfy requirements and has the ability to respond to high volume demands with low latency.
description: Submitted to Special Issue on Smart Edge Computing and IoT of IEEE Transaction on Computers
Limit of the Solutions for the Finite Horizon Problems as the Optimal Solution to the Infinite Horizon Optimization Problems
Creators: name: CAI, Dapeng
name: NITTA, Takashi Gyoshin
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Finance (q-fin.GN)
subject: Optimization and Control (math.OC)
subject: FOS: Economics and business
subject: FOS: Mathematics

description: We aim to generalize the results of Cai and Nitta (2007) by allowing both the utility and production function to depend on time. We also consider an additional intertemporal optimality criterion. We clarify the conditions under which the limit of the solutions for the finite horizon problems is optimal among all attainable paths for the infinite horizon problems under the overtaking criterion, as well as the conditions under which such a limit is the unique optimum under the sum-of-utilities criterion. The results are applied to a parametric example of the one-sector growth model to examine the impacts of discounting on optimal paths.
Anomalous dynamics in two- and three- dimensional Heisenberg-Mattis spin glasses
Creators: name: de Queiroz, S. L. A.
name: Stinchcombe, R. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the spectral and localization properties of unmagnetized Heisenberg-Mattis spin glasses, in space dimensionalities $d=2$ and 3, at T=0. We use numerical transfer-matrix methods combined with finite-size scaling to calculate Lyapunov exponents, and eigenvalue-counting theorems, coupled with Gaussian elimination algorithms, to evaluate densities of states. In $d=2$ we find that all states are localized, with the localization length diverging as $ω^{-1}$, as energy $ω\to 0$. Logarithmic corrections to density of states behave in accordance with theoretical predictions. In $d=3$ the density-of-states dependence on energy is the same as for spin waves in pure antiferromagnets, again in agreement with theoretical predictions, though the corresponding amplitudes differ.
description: RevTeX4, 9 pages, 9 .eps figures
Line confusion in spectroscopic surveys and its possible effects: Shifts in Baryon Acoustic Oscillations position
Creators: name: Massara, Elena
name: Ho, Shirley
name: Hirata, Christopher M.
name: DeRose, Joseph
name: Wechsler, Risa H.
name: Fang, Xiao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Roman Space Telescope will survey about 17 million emission-line galaxies over a range of redshifts. Its main targets are H$α$ emission-line galaxies at low redshifts and [O III] emission-line galaxies at high redshifts. The Roman Space Telescope will estimate the redshift these galaxies with single line identification. This suggests that other emission-line galaxies may be misidentified as the main targets. In particular, it is hard to distinguish between the H$β$ and [O III] lines as the two lines are close in wavelength and hence the photometric information may not be sufficient to separate them reliably. Misidentifying H$β$ emitter as [O III] emitter will cause a shift in the inferred radial position of the galaxy by approximately 90 Mpc/h. This length scale is similar to the Baryon Acoustic Oscillation (BAO) scale and could shift and broaden the BAO peak, possibly introduce errors in determining the BAO peak position. We qualitatively describe the effect of this new systematic and further quantify it with a lightcone simulation with emission-line galaxies.
Point-contact spectroscopy of the nickel borocarbide superconductor YNi2B2C in the normal and superconducting state
Creators: name: Bashlakov, D. L.
name: Naidyuk, Yu. G.
name: Yanson, I. K.
name: Behr, G.
name: Drechsler, S. -L.
name: Fuchs, G.
name: Schultz, L.
name: Souptel, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Point-contact (PC) spectroscopy measurements of YNi2B2C single crystals in the normal and superconducting (SC) state (T_c=15.4K) for the main crystallographic directions are reported. The PC study reveals the electron-phonon interaction (EPI) spectral function with dominant phonon maximum around 12 meV and further weak structures (hump or kink) at higher energy at about 50 meV. No "soft" modes below 12 meV are resolved in the normal state. The PC EPI spectra are qualitatively similar for the different directions. Contrary, directional study of the SC gap results in Δ_[100]=1.5 meV for the a direction and Δ_[001]=2.3 meV along the c axis; however the critical temperature T_c in PC in all cases is near to that in the bulk sample. The value 2Δ_[001]/kT_c=3.6 is close to the BCS value of 3.52, and the temperature dependence Δ_[001](T) is BCS-like, while the for small gap Δ_[100](T) is below BCS behavior at T>T_c/2 similarly as in the two-gap superconductor MgB2. It is supposed that the directional variation Δcan be attributed to a multiband nature of the SC state in YNi2B2C.
description: 9 pages, 10 figures, to be published in a special issue of J. Low Temp. Phys. in honour of Prof. H. von Loehneysen
Predicting How to Test Requirements: An Automated Approach
Creators: name: Winkler, Jonas Paul
name: Grönberg, Jannis
name: Vogelsang, Andreas
Publisher: name: Technische Universität Berlin
Year: 2019
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: 006 Spezielle Computerverfahren
subject: requirements engineering
subject: requirements validation
subject: test engineering
subject: machine learning
subject: natural language processing
subject: neural networks

description: [Context] An important task in requirements engineering is to identify and determine how to verify a requirement (e.g., by manual review, testing, or simulation; also called potential verification method). This information is required to effectively create test cases and verification plans for requirements. [Objective] In this paper, we propose an automatic approach to classify natural language requirements with respect to their potential verification methods (PVM). [Method] Our approach uses a convolutional neural network architecture to implement a multiclass and multilabel classifier that assigns probabilities to a predefined set of six possible verification methods, which we derived from an industrial guideline. Additionally, we implemented a backtracing approach to analyze and visualize the reasons for the network’s decisions. [Results] In a 10-fold cross validation on a set of about 27,000 industrial requirements, our approach achieved a macro averaged F1 score of 0.79 across all labels. For the classification into test or non-test, the approach achieves an even higher F1 score of 0.94. [Conclusions] The results show that our approach might help to increase the quality of requirements specifications with respect to the PVM attribute and guide engineers in effectively deriving test cases and verification plans.
Le retour du fils prodigue dans le théâtre de Jean-Luc Lagarce:
Creators: name: Παπαγιαννούλη, Δέσποινα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Επιστροφή
Άσωτος
Ζαν-Λυκ Λαγκάρς
Return
Prodigal
Jean-Luc Lagarce

description: Στην παρούσα εργασία έγινε μια προσπάθεια προσέγγισης της επιστροφής του Ασώτου στο έργο του Jean-Luc Lagarce, μέσα από τέσσερα θεατρικά κείμενά του. Στο πρώτο κεφάλαιο, εξετάσαμε Όψεις της επιστροφής και έργα που πραγματεύονται το θέμα της επιστροφής, από την αρχαιότητα μέχρι και τη συγγραφή των κειμένων του Lagarce. Στη συνέχεια προσπαθήσαμε να κατανοήσουμε και να αναδείξουμε Όψεις της επιστροφής στον Jean-Luc Lagarce καθώς και τα βασικά χαρακτηριστικά της γραφής του. Στο κυρίως θέμα ασχοληθήκαμε αρχικά με τη σημασία των τίτλων στα τέσσερα έργα που παρουσιάζονται.. Εδώ, με βάση την ερμηνεία των λέξεων που εμπεριέχονται στους τίτλους των έργων, προσπαθήσαμε να κάνουμε μια πρώτη προσέγγιση της επιστροφής του Ασώτου κατά Lagarce. Επιπλέον, μέσα από τη μελέτη των τεσσάρων θεατρικών έργων, εξετάσαμε και αξιολογήσαμε τη σχέση και τη συμβολή των θεατρικών τους στοιχείων με την ολική διαδικασία της επιστροφής. Επιχειρήσαμε, επίσης, να καταδείξουμε τις επιρροές από την προσωπική ζωή και τα βιώματα του συγγραφέα και στα τέσσερα κείμενα. Τέλος, μέσα από τα συμπεράσματά μας, καταλήξαμε στο βαθύτερο κίνητρο της επιστροφής του Ασώτου κατά Lagarce.
description: The aim of the following master paper was the study of the Prodigal Son’s Return based on the work of Jean-Luc Lagarce, examined throughout four of his plays. In the first chapter we examined the proposed aspects concerning return from antiquity till the period that the plays presented were written. Then we tried to understand and highlight the aspects of return in Jean-Luc Lagarce, as well as, the basic characteristics of Jean-Luc Lagarce way of writing. In the main part, we were initially concerned of the meaning of the four plays’s titles. At this point, on the basis of the interpretation of the words in the titles of the plays, we tried to make the first approach of the Prodigal Son’s return, according to Lagarce. In addition, through studying the four plays, we examined and assessed the relation and the contribution between the theatrical elements and the holistic process of return. We also made un attempt to show how the writer’s personal life and his own experiences influenced all of the four plays. At the end, our conclusions led us to the inner motivation of the Prodigal Son’s Return according to Lagarce.
Educational cosmic ray experiments with Geiger counters
Creators: name: Blanco, F.
name: Fichera, F.
name: La Rocca, P.
name: Librizzi, F.
name: Parasole, O.
name: Riggi, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Experiments concerning the physics of cosmic rays offer to high-school teachers and students a relatively easy approach to the field of research in high energy physics. The detection of cosmic rays does not necessarily require the use of sophisticated equipment, and various properties of the cosmic radiation can be observed and analysed even by the use of a single Geiger counter. Nevertheless, the variety of such kind of experiments and the results obtained are limited because of the inclusive nature of these measurements. A significant improvement may be obtained when two or more Geiger counters are operated in coincidence. In this paper we discuss the potential of performing educational cosmic ray experiments with Geiger counters. In order to show also the educational value of coincidence techniques, preliminary results of cosmic ray experiments carried out by the use of a simple coincidence circuit are briefly discussed.
description: 14 pages, 7 figures