cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Deep Neural Networks Rival the Representation of Primate IT Cortex for Core Visual Object Recognition
Creators: name: Cadieu, Charles F.
name: Hong, Ha
name: Yamins, Daniel L. K.
name: Pinto, Nicolas
name: Ardila, Diego
name: Solomon, Ethan A.
name: Majaj, Najib J.
name: DiCarlo, James J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: The primate visual system achieves remarkable visual object recognition performance even in brief presentations and under changes to object exemplar, geometric transformations, and background variation (a.k.a. core visual object recognition). This remarkable performance is mediated by the representation formed in inferior temporal (IT) cortex. In parallel, recent advances in machine learning have led to ever higher performing models of object recognition using artificial deep neural networks (DNNs). It remains unclear, however, whether the representational performance of DNNs rivals that of the brain. To accurately produce such a comparison, a major difficulty has been a unifying metric that accounts for experimental limitations such as the amount of noise, the number of neural recording sites, and the number trials, and computational limitations such as the complexity of the decoding classifier and the number of classifier training examples. In this work we perform a direct comparison that corrects for these experimental limitations and computational considerations. As part of our methodology, we propose an extension of "kernel analysis" that measures the generalization accuracy as a function of representational complexity. Our evaluations show that, unlike previous bio-inspired models, the latest DNNs rival the representational performance of IT cortex on this visual object recognition task. Furthermore, we show that models that perform well on measures of representational performance also perform well on measures of representational similarity to IT and on measures of predicting individual IT multi-unit responses. Whether these DNNs rely on computational mechanisms similar to the primate visual system is yet to be determined, but, unlike all previous bio-inspired models, that possibility cannot be ruled out merely on representational performance grounds.
description: 35 pages, 12 figures, extends and expands upon arXiv:1301.3530
Experience using Coloured Petri Nets to Model Railway Interlocking Tables
Creators: name: Vanit-Anunchai, Somsak
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Interlocking tables are the functional specification defining the routes on which the passage of the train is allowed. Associated with the route, the states and actions of all related signalling equipment are also specified. It is well-known that designing and verifying the interlocking tables are labour intensive, tedious and prone to errors. To assist the verification process and detect errors rapidly, we formally model and analyse the interlocking tables using Coloured Petri Nets (CPNs). Although a large interlocking table can be easily modelled, analysing the model is rather difficult due to the state explosion problem and undesired safe deadlocks. The safe deadlocks are when no train collides but the train traffic cannot proceed any further. For ease of analysis we incorporate automatic route setting and automatic route cancelling functions into the model. These help reducing the number of the deadlocks. We also exploit the new features of CPN Tools; prioritized transitions; inhibitor arcs; and reset arcs. These help reducing the size of the state spaces. We also include a fail safe specification called flank protection into the interlocking model.
description: In Proceedings FSFMA 2014, arXiv:1407.1952
Localization for transversally periodic random potentials on binary trees
Creators: name: Froese, Richard
name: Lee, Darrick
name: Sadel, Christian
name: Spitzer, Wolfgang
name: Stolz, Günter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B44

description: We consider a random Schrödinger operator on the binary tree with a random potential which is the sum of a random radially symmetric potential, $Q_r$, and a random transversally periodic potential, $κQ_t$, with coupling constant $κ$. Using a new one-dimensional dynamical systems approach combined with Jensen's inequality in hyperbolic space (our key estimate) we obtain a fractional moment estimate proving localization for small and large $κ$. Together with a previous result we therefore obtain a model with two Anderson transitions, from localization to delocalization and back to localization, when increasing $κ$. As a by-product we also have a partially new proof of one-dimensional Anderson localization at any disorder.
description: 25 pages, 1 figure
Carbon-Fiber Microelectrodes Modified with 4-Sulfobenzene Have Increased Sensitivity and Selectivity for Catecholamines
Creators: name: Wightman, R. Mark
name: Hermans, Andre
name: Miller, Charles E.
name: Seipel, Andrew T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Elliptical and cylindrical geometries of carbon-fiber microelectrodes were modified by covalent attachment of 4-sulfobenzenediazonium tetrafluoroborate following its electroreduction. Elliptical electrodes fabricated from Thornel P-55 carbon fibers show the highest amount of 4-sulfobenzene attached to the electrode. Fast-scan cyclic voltammetry was used to compare the response to dopamine and other neurochemicals at these modified carbon-fiber microelectrodes. The grafted layer causes an increased sensitivity to dopamine and other positively charged analytes that is due to increased adsorption of analyte in the grafted layer. However, this layer remains permeable to negatively charged compounds. Modified electrodes retain the increased sensitivity for dopamine during measurements in mouse brain tissue.
A New Framework for Retinex based Color Image Enhancement using Particle Swarm Optimization
Creators: name: Hanumantharaju, M. C
name: Ravishankar, M.
name: Rameshbabu, D. R
name: Aradhya, V. N Manjunath
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: H.2.0
subject: 68T45

description: A new approach for tuning the parameters of MultiScale Retinex (MSR) based color image enhancement algorithm using a popular optimization method, namely, Particle Swarm Optimization (PSO) is presented in this paper. The image enhancement using MSR scheme heavily depends on parameters such as Gaussian surround space constant, number of scales, gain and offset etc. Selection of these parameters, empirically and its application to MSR scheme to produce inevitable results are the major blemishes. The method presented here results in huge savings of computation time as well as improvement in the visual quality of an image, since the PSO exploited maximizes the MSR parameters. The objective of PSO is to validate the visual quality of the enhanced image iteratively using an effective objective criterion based on entropy and edge information of an image. The PSO method of parameter optimization of MSR scheme achieves a very good quality of reconstructed images, far better than that possible with the other existing methods. Finally, the quality of the enhanced color images obtained by the proposed method are evaluated using novel metric, namely, Wavelet Energy (WE). The experimental results presented show that color images enhanced using the proposed scheme are clearer, more vivid and efficient.
description: 24 pages, 12 figures
Conical Tungsten Tips as Substrates for the Preparation of Ultramicroelectrodes †
Creators: name: Hermans, Andre
name: Wightman, R. Mark
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Here we describe a simple method to prepare voltammetric microelectrodes using tungsten wires as a substrate. Tungsten wires have high tensile modulus and enable the fabrication of electrodes that have small dimensions overall while retaining rigidity. In this work, 125 μm tungsten wires with a conical tip were employed. For the preparation of gold or platinum ultramicroelectrodes, commercial tungsten microelectrodes, completely insulated except at the tip, were used as substrates. Following removal of oxides from the exposed tungsten, platinum or gold was electroplated yielding surfaces with an electroactive area of between 1×10−6 cm2 to 2×10−6 cm2. Carbon surfaces on the etched tip of tungsten microwires were prepared by coating with photoresist followed by pyrolysis. The entire electrode was then insulated with Epoxylite except the tip yielding an exposed carbon surface with an area of around 4×10−6 cm2 to 6×10−6 cm2. All three types of ultramicroelectrodes fabricated on the tungsten wire had similar electrochemical behavior to electrodes fabricated from wires or fibers insulated with glass tubes.
Abelian properties of Parry words
Creators: name: Turek, Ondřej
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15, 11B85

description: Abelian complexity of a word $\mathbf{u}$ is a function that counts the number of pairwise non-abelian-equivalent factors of $\mathbf{u}$ of length $n$. We prove that for any $c$-balanced Parry word $\mathbf{u}$, the values of the abelian complexity function can be computed by a finite-state automaton. The proof is based on the notion of relative Parikh vectors. The approach works for any function $F(n)$ that can be expressed in terms of the set of relative Parikh vectors corresponding to the length $n$. For example, we show that the balance function of a $c$-balanced Parry word is computable by a finite-state automaton as well.
description: 19 pages
Scalable, Shape-Specific, Top-Down Fabrication Methods for the Synthesis of Engineered Colloidal Particles
Creators: name: Merkel, Timothy J.
name: Rolland, Jason P.
name: Nunes, Janine
name: Orgel, Ryan M.
name: Herlihy, Kevin P.
name: DeSimone, Joseph M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The search for a method to fabricate non-spherical colloidal particles from a variety of materials is of growing interest. As the commercialization of nanotechnology continues to expand, the ability to translate particle fabrication methods from a laboratory to an industrial scale is of increasing significance. In this article, we examine several of the most readily scalable top-down methods for the fabrication of such shape specific particles and compare their capabilities with respect to particle composition, size, shape and complexity as well as the scalability of the method. We offer an extensive examination of Particle Replication In Non-wetting Templates (PRINT®) with regards to the versatility and scalability of this technique. We also detail the specific methods used in PRINT particle fabrication, including harvesting, purification and surface modification techniques, with examination of both past and current methods.
Βαρέα μέταλλα και καρδιαγγειακές παθήσεις
Creators: name: Ματθαίου, Μαρία Αστέριου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Βαρέα μέταλλα
Καρδιαγγειακές παθήσεις
Οξειδωτικό στρες
Heavy metals
Cardiovascular diseases
Oxidative stress

description: Τα βαρέα μέταλλα είναι επικίνδυνα και τοξικά χημικά στοιχεία με υψηλή πυκνότητα που επηρεάζουν ακόμα και σε χαμηλή συγκέντρωση τον ανθρώπινο οργανισμό. Η επικινδυνότητα των βαρέων μετάλλων έγκειται στην ικανότητα τους να βιοσυσσωρεύονται. Η ικανότητα αυτή βασίζεται στην αύξηση της συγκέντρωσης μιας συγκεκριμένης χημικής ουσίας μέσα σε ένα βιολογικό οργανισμό σε συνάρτηση με τον χρόνο, συγκριτικά με την συγκέντρωση της, όταν η ίδια ουσία βρίσκεται στο περιβάλλον. Η καρδιαγγειακή νόσος (CVD) είναι ένα αυξανόμενο παγκόσμιο πρόβλημα υγείας, με τους παράγοντες κινδύνου να είναι κυρίως περιβαλλοντικοί, διατροφικοί και συμπεριφοριστικοί σε σχέση με τον τρόπο ζωής. Η πιθανή συσχέτιση μεταξύ της καρδιαγγειακής νόσου και της χρόνιας έκθεσης σε βαρέα μέταλλα όπως, το αρσενικό, ο μόλυβδος, το κάδμιο, ο υδράργυρος κ.α. δεν είναι καλά ορισμένη. Η έκθεση στα βαρέα μέταλλα αυξάνει το οξειδωτικό στρες και τους παράγοντες φλεγμονής, παράγοντες που επίσης, επηρεάζουν την γένεση και την πρόοδο της καρδιαγγειακής νόσου. Ο στόχος της παρούσας μελέτης είναι να καταγράψει μελέτες και έρευνες που συσχετίζουν την έκθεση στα βαρέα μέταλλα και στον κίνδυνο ανάπτυξης καρδιαγγειακής νόσου.
description: Heavy metals are hazardous and toxic chemicals with a high density that even affect the human body at low concentrations. The hazard of heavy metals lies in their ability to bioaccumulate. This capacity is based on increasing the concentration of a specific chemical within a biological organism over time, compared to its concentration, when the same substance is present in the environment. Cardiovascular disease (CVD) is a growing global health problem, with risk factors being mainly environmental, nutritional and lifestyle behavioural. The possible correlation between cardiovascular disease and chronic exposure to heavy metals such as arsenic, lead, cadmium, mercury etc. is not well defined. Exposure to heavy metals increases oxidative stress and inflammation factors, which also affect the birth and progression of cardiovascular disease. The aim of this study is to record studies and research that correlate exposure to heavy metals and the risk of developing cardiovascular disease.
Trafficking GRK2: Cellular and Metabolic consequences of GRK2 subcellular localization
Creators: name: (:Unkn) Unknown
Publisher: name: Universita' degli Studi di Salerno
Year: 2014
Subjects: G protein coupled receptor kinases;
Mitochondria
Energy
Cell metabolism

description: G protein coupled receptor kinase 2 (GRK2) has a key role in cellular function by regulating different intracellular mechanisms in a kinase dependent or independent manner. In this review we have dealt with the recently discovered roles of GRK2 in the regulation of cell metabolism. In particular, we have focused on recent findings about the mitochondrial role of GRK2 in the regulation of energy metabolism. Few findings exist about this topic that all concur to identify a mitochondrial localization of GRK2, leading to the rising of the following question: is GRK2 detrimental or advantageous for mitochondrial function? By the review of available literature, a new concept arises about GRK2 role into the cell,which is that of a stress protein acutely activated by cellular stress whose specific subcellular localization, in particular mitochondrial localization, results in compensatory metabolic responses. Thus, the possibility to regulate GRK2 trafficking within the cell is a promising strategy to regulate the adaptative effects of the kinase on cell metabolism.
A Critical Assessment of the Flux Transport Dynamo
Creators: name: Choudhuri, Arnab Rai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We first discuss how the flux transport dynamo with reasonably high diffusion can explain both the regular and the irregular features of the solar cycle quite well. Then we critically examine the inadequacies of the model and the challenge posed by some recent observational data about meridional circulation, arriving at the conclusion that this model can still work within the bounds of observational data
description: 11 pages, 2 figures, Journal of Astronomy and Astrophysics (invited article for the special issue "MHD Waves and Dynamical Processes in the Magnetised Solar and Space Plasmas")
Architettura e propaganda. Il Museo delle Navi di Nemi, spunti per una ricerca
Creators: name: Calandra Di Roccolino, Giacomo
Publisher: name: La Rivista di Engramma
Year: 2023
Subjects: Vittorio Ballio Morpurgo
Museo Nemi
architettura archeologica

description: The comparison of two of the most important archaeological 'enterprises' of Fascism - the recovery and construction of the pavilion of the Ara Pacis and the recovery of the Nemi Ships and the construction of the Museum of Roman Ships in Nemi - brings to light the role of Fascist propaganda, which helped to make these enterprises possible. The events surrounding the architecture of the Nemi Museum, built like the one for the Altar by the architect Vittorio Morpurgo, offer insights that will be pursued in the coming years thanks to the collaboration between the Nemi Museum, the Iuav of Venice, the Roma Tre University and other important institutions.
On quasi-nodal spheres and the spin Hall effect: the case of YH3 and CaTe
Creators: name: Gonzalez-Hernandez, Rafael
name: Pinilla, Carlos
name: Uribe, Bernardo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Algebraic Topology (math.AT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Band inversion is a known feature in a wide range of topological insulators characterized by a change of orbital type around a high-symmetry point close to the Fermi level. In some cases of band inversion in topological insulators, the existence of quasinodal spheres has been detected, and the change of orbital type is shown to be concentrated along these spheres in momentum space. To understand this phenomenon, we develop a local effective fourfold Hamiltonian that models the band inversion and reproduces the quasinodal sphere. This model shows that the signal of the spin Hall conductivity, as well as the change of orbital type, are both localized on the quasinodal sphere, and moreover, that these two indicators characterize the topological nature of the material. Using K-theoretical methods, we show that the change of orbital type parametrized by an odd clutching function is equivalent to the strong Fu-Kane-Mele invariant. We corroborate these results with ab initio calculations for the materials YH3 and CaTe, where in both cases the signal of the spin Hall conductivity is localized on the quasinodal spheres in momentum space. We conclude that a nontrivial spin Hall conductivity localized on the points of change of orbital type is a good indicator for topological insulation.
description: 10 pages, 5 figures
Antibacterial Fluorinated Silica Colloid Superhydrophobic Surfaces
Creators: name: Han, Junhee
name: Hong, Sung A.
name: Schoenfisch, Mark H.
name: Shin, Jae Ho
name: Lee, Jiyeon
name: Youn, Jonghae
name: Privett, Benjamin J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: A superhydrophobic xerogel coating synthesized from a mixture of nanostructured fluorinated silica colloids, fluoroalkoxysilane, and a backbone silane is reported. The resulting fluorinated surface was characterized using contact angle goniometry, SEM, and AFM. Quantitative bacterial adhesion studies performed using a parallel plate flow cell demonstrated that the adhesion of Staphylococcus aureus and Pseudomonas aeruginosa were reduced by 2.08 ± 0.25 and 1.76 ± 0.12 log over controls, respectively. This simple superhydrophobic coating synthesis may be applied to any surface regardless of geometry and does not require harsh synthesis or processing conditions, making it an ideal candidate as a biopassivation strategy.
Formulation and Acoustic Studies of a New Phase-Shift Agent for Diagnostic and Therapeutic Ultrasound
Creators: name: Luois, Samantha
name: Matsunaga, Terry O.
name: Dayton, Paul A.
name: Sheeran, Paul S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Recent efforts in the area of acoustic droplet vaporization with the objective of designing extravascular ultrasound contrast agents has led to the development of stabilized, lipid-encapsulated nanodroplets of the highly volatile compound decafluorobutane (DFB). We have developed two methods of generating DFB droplets, the first of which involves condensing DFB gas (boiling point of −1.1° to −2° C) followed by extrusion with a lipid formulation in HEPES buffer. Acoustic droplet vaporization of micron-sized lipid-coated droplets at diagnostic ultrasound frequencies and mechanical indices were confirmed optically. In our second formulation methodology, we demonstrate the formulation of sub-micron sized lipid-coated nanodroplets based upon condensation of pre-formed microbubbles containing DFB. The droplets are routinely in the 200 – 300 nm range and yield microbubbles on the order of 1 – 5 microns once vaporized, consistent with ideal gas law expansion predictions. The simple and effective nature of this methodology allows for the development of a variety of different formulations that can be used for imaging, drug and gene delivery, and therapy. This study is the first to our knowledge to demonstrate both a method of generating ADV agents by microbubble condensation and formulation of primarily sub-micron droplets of decafluorobutane that remain stable at physiological temperatures. Finally, activation of DFB nanodroplets is demonstrated using pressures within the FDA guidelines for diagnostic imaging, which may minimize the potential for bioeffects in humans. This methodology offers a new means of developing extravascular contrast agents for diagnostic and therapeutic applications.
Verified Subtyping with Traits and Mixins
Creators: name: Sharma, Asankhaya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.4

description: Traits allow decomposing programs into smaller parts and mixins are a form of composition that resemble multiple inheritance. Unfortunately, in the presence of traits, programming languages like Scala give up on subtyping relation between objects. In this paper, we present a method to check subtyping between objects based on entailment in separation logic. We implement our method as a domain specific language in Scala and apply it on the Scala standard library. We have verified that 67% of mixins used in the Scala standard library do indeed conform to subtyping between the traits that are used to build them.
description: In Proceedings FSFMA 2014, arXiv:1407.1952
Stable Oligomeric Clusters of Gold Nanoparticles: Preparation, Size Distribution, Derivatization, and Physical and Biological Properties
Creators: name: Smithies, Oliver
name: Horne, Lloyd P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Reducing dilute aqueous HAuCl4 with NaSCN under alkaline conditions produces 2–3 nm diameter yellow nanoparticles without the addition of extraneous capping agents. We here describe two very simple methods for producing highly stable oligomeric grape-like clusters (oligoclusters) of these small nanoparticles. The oligoclusters have well-controlled diameters ranging from ∼5 to ∼30 nm, depending mainly on the number of subunits in the cluster. Our first [“delay-time”] method controls the size of the oligoclusters by varying from seconds to hours the delay time between making the HAuCl4 alkaline and adding the reducing agent, NaSCN. Our second [“add-on”] method controls size by using yellow nanoparticles as seeds onto which varying amounts of gold derived from “hydroxylated gold”, Na+[Au(OH4–x)Clx]−, are added-on catalytically in the presence of NaSCN. Possible reaction mechanisms and a simple kinetic model fitting the data are discussed. The crude oligocluster preparations have narrow size distributions, and for most purposes do not require fractionation. The oligoclusters do not aggregate after ∼300-fold centrifugal-filter concentration, and at this high concentration are easily derivatized with a variety of thiol-containing reagents. This allows rare or expensive derivatizing reagents to be used economically. Unlike conventional glutathione-capped nanoparticles of comparable gold content, large oligoclusters derivatized with glutathione do not aggregate at high concentrations in phosphate-buffered saline (PBS) or in the circulation when injected into mice. Mice receiving them intravenously show no visible signs of distress. Their sizes can be made small enough to allow their excretion in the urine or large enough to prevent them from crossing capillary basement membranes. They are directly visible in electron micrographs without enhancement, and can model the biological fate of protein-like macromolecules with controlled sizes and charges. The ease of derivatizing the oligoclusters makes them potentially useful for presenting pharmacological agents to different tissues while controlling escape of the reagents from the circulation.
Διακίνηση ναρκωτικών ουσιών στο πλαίσιο εγκληματικής οργάνωσης
Creators: name: Μαρτσάκη, Ρουμπίνη Ανδρέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Εγκληματική οργάνωση ναρκωτικών
Κέρδη από την εμπορία ναρκωτικών
Μεθοδικότητα δράσης
Criminal drug organization
Profits from drug trafficking
Methodical action

description: Η παρούσα διπλωματική εργασία άπτεται της ερμηνευτικής προσεγγίσεως του οργανωμένου εγκλήματος που δραστηριοποιείται ιδίως στη διακίνηση ναρκωτικών ουσιών. Εν προκειμένω, επικεντρώνεται στη διερεύνηση του άρθρου 187 ΠΚ παραγράφων 1 και 3 σε συνδυασμό με τη κακουργηματικής φύσεως διακίνηση ναρκωτικών ουσιών των άρθρων 20, 22 και 23 Ν.4139/2013. Κατέβαλλα κάθε δυνατή προσπάθεια, προκειμένου να προβώ στη συγγραφή ενός ιδιαιτέρου απαιτητικού θέματος, το οποίο συνδυάζει διατάξεις του Ποινικού Κώδικα, του Κώδικα Ποινικής Δικονομίας και του Ν.4139/2013 «περί εξαρτησιογόνων ουσιών και άλλες διατάξεις». Στα πλαίσια της ιστορικής αναδρομής έλαβα υπόψη το θεμελιώδους σημασίας Ν.2928/2001, όπως τροποποιήθηκε με τους Ν.3064/2002, Ν.3251/2004, Ν 4619/2019, το Ν.3875/2010, όπου με τον τελευταίο η Ελλάδα κύρωσε τη Σύμβαση του Παλέρμου, καθώς και τη θεμελιώδη ΑπόφασηΠλαίσιο 2008/841/Δ.Ε.Υ. του Συμβουλίου στης 24ης Οκτωβρίου 2008 «για την καταπολέμηση του οργανωμένου εγκλήματος». Εξ αυτής της επίπονης προσπάθειάς, θα ήθελα να εκφράσω τις εγκάρδιες ευχαριστίες μου στον καθηγητή μου, κύριο Αδάμ Παπαδαμάκη, για την ουσιαστική συμπαράστασή του, καθ’ όλη τη διάρκεια του συγγραφικού μου έργου, καθώς με τις κατάλληλες οδηγίες και κατευθύνσεις του, συνέβαλε καταλυτικά στο τελικό αποτέλεσμα. Τέλος, θα ήθελα να ευχαριστήσω όλους τους καθηγητές του μεταπτυχιακού προγράμματός σπουδών μου, οι οποίοι συνέβαλλαν καταλυτικά στη διεύρυνση των πνευματικών μου οριζόντων.
description: This diploma thesis deals with the interpretative approach of organized crime, which is particularly active in drug trafficking. In this case, it focuses on the investigation of Article 187 of the Penal Code, paragraphs 1 and 3, in conjunction with the felony trafficking of narcotic substances of articles 20, 22 and 23 of Law 4139/2013. I made every effort to write a particularly demanding subject, which combines provisions of the Penal Code, the Code of Criminal Procedure and Law 4139/2013 "on addictive substances and other provisions". In the context of historical retrospection, I took into account the fundamental importance of Law 2928/2001, as amended by Law 3064/2002, Law 3251/2004, Law 4619/2019, Law 3875/2010, where Greece ratified the Palermo Convention, as well as the fundamental Council Framework Decision 2008/841/JHA of 24 October 2008 "on the fight against organised crime". From this painstaking effort, I would like to express my heartfelt thanks to my professor, Mr. Adam Papadamakis, for his substantial support throughout my writing work, as with his appropriate instructions and directions, he contributed catalytically to the final result. Finally, I would like to thank all the professors of my postgraduate program, who contributed catalytically to the broadening of my intellectual horizons.
Giant thermopower in superconducting heterostructures with spin-active interfaces
Creators: name: Kalenkov, Mikhail S.
name: Zaikin, Andrei D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We predict parametrically strong enhancement of the thermoelectric effect in metallic bilayers consisting of two superconductors separated by a spin-active interface. The physical mechanism for such an enhancement is directly related to electron-hole imbalance generated by spin-sensitive quasiparticle scattering at the interface between superconducting layers. We explicitly evaluate the thermoelectric currents flowing in the system and demonstrate that they can reach maximum values comparable to the critical ones for superconductors under consideration.
description: 6 pages, 1 figure
Lexical semantics and irregular inflection
Creators: name: Huang, Yi Ting
name: Pinker, Steven
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Whether a word has an irregular inflection does not depend on its sound alone: compare lie-lay (recline) and lie-lied (prevaricate). Theories of morphology, particularly connectionist and symbolic models, disagree on which nonphonological factors are responsible. We test four possibilities: (1) Lexical effects, in which two lemmas differ in whether they specify an irregular form; (2) Semantic effects, in which the semantic features of a word become associated with regular or irregular forms; (3) Morphological structure effects, in which a word with a headless structure (e.g., a verb derived from a noun) blocks access to a stored irregular form; (4) Compositionality effects, in which the stored combination of an irregular word’s meaning (e.g., the verb’s inherent aspect) with the meaning of the inflection (e.g., pastness) doesn’t readily transfer to new senses with different combinations of such meanings. In four experiments, speakers were presented with existing and novel verbs and asked to rate their past-tense forms, semantic similarities, grammatical structure, and aspectual similarities. We found (1) an interaction between semantic and phonological similarity, coinciding with reported strategies of analogizing to known verbs and implicating lexical effects; (2) weak and inconsistent effects of semantic similarity; (3) robust effects of morphological structure, and (4) robust effects of aspectual compositionality. Results are consistent with theories of language that invoke lexical entries and morphological structure, and which differentiate the mode of storage of regular and irregular verbs. They also suggest how psycholinguistic processes have shaped vocabulary structure over history.
Transplantation and mechanical support of the human heart: 50 years of innovation and application
Creators: name: Kirklin James, K.
Publisher: name: Клиническая и экспериментальная хирургия
Year: 2017
Subjects: ТРАНСПЛАНТАЦИЯ СЕРДЦА
МЕХАНИЧЕСКАЯ ПОДДЕРЖКА
ПОЛНОЕ ИСКУССТВЕННОЕ СЕРДЦЕ
HEART TRANSPLANTATION
MECHANICAL SUPPORT
TOTAL ARTIFICIAL HEART

description: History, modernity and probable prospects in the problem of terminal myocardial dysfunctions and heart failure surgical treatment are presented in this article. Innovations in these two methods of end-stage heart diseases treatment gave hope to hundreds of thousands of fateful patients. Problems of the near future are: heart xenotransplantation in children, miniaturization and creation of a new generation of peristaltic pumps of assisted circulation.
Constraints on the dark photon from parity violation and the $W$ mass
Creators: name: Thomas, A. W.
name: Wang, X. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present an analysis of the experimental data for parity-violating electron scattering (PVES) and atomic parity-violation, including the effects of a dark photon. We derive the favored region of dark photon parameter space, which provides a good description of the experimental data from the Qweak Collaboration and the Jefferson Lab PVDIS Collaboration and simultaneously relieves the tension between the neutron skin thickness determined in the PREX-II experiment and nuclear-model predictions. In addition, we extract the parameter region required to explain the latest W-boson mass anomaly. Our results indicate that a heavy dark photon with mass above the Z boson mass is favored, while other sources of new physics beyond the Standard Model in addition to the dark photon would also be expected.
description: 6 pages, 1 table, 1 figure. The fit result is updated. More references are added
Memory availability and referential access
Creators: name: Johns, Clinton L.
name: Swaab, Tamara Y.
name: Long, Debra L.
name: Gordon, Peter C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Most theories of coreference specify linguistic factors that modulate antecedent accessibility in memory; however, whether non-linguistic factors also affect coreferential access is unknown. Here we examined the impact of a non-linguistic generation task (letter transposition) on the repeated-name penalty, a processing difficulty observed when coreferential repeated names refer to syntactically prominent (and thus more accessible) antecedents. In Experiment 1, generation improved online (event-related potentials) and offline (recognition memory) accessibility of names in word lists. In Experiment 2, we manipulated generation and syntactic prominence of antecedent names in sentences; both improved online and offline accessibility, but only syntactic prominence elicited a repeated-name penalty. Our results have three important implications: first, the form of a referential expression interacts with an antecedent’s status in the discourse model during coreference; second, availability in memory and referential accessibility are separable; and finally, theories of coreference must better integrate known properties of the human memory system.
Τι είναι τελικά η Παιδαγωγική της Ένταξης; Η θεωρητική θεμελίωση του Len Barton και της Sally Tomlinson
Creators: name: Μάρκου, Δήμητρα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Παιδαγωγική της Ένταξης
Αναπηρία
Ειδική αγωγή
Inclusive Education
Disability
Special education

description: Η παρούσα διπλωματική εργασία μελετά τη συμβολή του έργου του Len Barton και της Sally Tomlinson στη διαμόρφωση του πεδίου της Παιδαγωγικής της Ένταξης. Ειδικότερα, εξετάζεται το συγγραφικό τους έργο την περίοδο 1980-1990 και παρουσιάζονται οι βασικές ιδέες που ανέπτυξαν. Κεντρικές συνιστώσες στη θεώρηση της Sally Tomlinson και του Len Barton, για την Παιδαγωγική της Ένταξης, αποτελούν η συμβολή της κοινωνιολογίας στην εξέταση ζητημάτων σχετικά με την εκπαίδευση και την αναπηρία, η ιστορική πλαισίωση της ειδικής αγωγής, η κριτική εξέταση της κατηγοριοποίησης των μαθητών/-τριών και η επανανοηματοδότηση του όρου «ένταξη». Μέσα από τη μελέτη των παραπάνω θεμάτων επιχειρείται η «χαρτογράφηση» της Παιδαγωγικής της Ένταξης, όπως αρθρώθηκε από του δύο συγγραφείς.
description: The thesis studies the contribution of Len Barton and Sally Tomlinson's work in shaping the field of Inclusive Education. In particular, it examines their writing work in the period 1980-1990 and presents the main ideas they developed. The central components, in Sally Tomlinson and Len Barton's approach of Inclusive Education, are the contribution of sociology to the examination of issues related to education and disability, the historical contextualization of special education, the critical examination of the categorization of pupils and the re-conceptualisation of the term 'inclusion'. Through the study of the above issues, an attempt is made to 'map' Inclusive Education, as articulated by the two authors.
Effects of psychological attention on pronoun comprehension
Creators: name: Arnold, Jennifer E.
name: Lao, Shin-Yi C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Pronoun comprehension is facilitated for referents that are focused in the discourse context. Discourse focus has been described as a function of attention, especially shared attention, but few studies have explicitly tested this idea. Two experiments used an exogenous capture cue paradigm to demonstrate that listeners’ visual attention at the onset of a story influences their preferences during pronoun resolution later in the story. In both experiments trial-initial attention modulated listeners’ transitory biases while considering referents for the pronoun, whether it was in response to the capture cue or not. These biases even had a small influence on listeners’ final interpretation of the pronoun. These results provide independently-motivated evidence that the listener’s attention influences the on-line processes of pronoun comprehension. Trial-initial attentional shifts were made on the basis of non-shared, private information, demonstrating that attentional effects on pronoun comprehension are not restricted to shared attention among interlocutors.
Multi-Freq-LDPy: Multiple Frequency Estimation Under Local Differential Privacy in Python
Creators: name: Arcolezi, Héber H.
name: Couchot, Jean-François
name: Gambs, Sébastien
name: Palamidessi, Catuscia
name: Zolfaghari, Majid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper introduces the multi-freq-ldpy Python package for multiple frequency estimation under Local Differential Privacy (LDP) guarantees. LDP is a gold standard for achieving local privacy with several real-world implementations by big tech companies such as Google, Apple, and Microsoft. The primary application of LDP is frequency (or histogram) estimation, in which the aggregator estimates the number of times each value has been reported. The presented package provides an easy-to-use and fast implementation of state-of-the-art solutions and LDP protocols for frequency estimation of: single attribute (i.e., the building blocks), multiple attributes (i.e., multidimensional data), multiple collections (i.e., longitudinal data), and both multiple attributes/collections. Multi-freq-ldpy is built on the well-established Numpy package -- a de facto standard for scientific computing in Python -- and the Numba package for fast execution. These features are described and illustrated in this paper with four worked examples. This package is open-source and publicly available under an MIT license via GitHub (https://github.com/hharcolezi/multi-freq-ldpy) and can be installed via PyPI (https://pypi.org/project/multi-freq-ldpy/).
description: Paper published in the proceedings of ESORICS 2022
Hedonic and nucleus accumbens neural responses to a natural reward are regulated by aversive conditioning
Creators: name: Tiesinga, P. H. E.
name: Carelli, R. M.
name: Roitman, J. D.
name: Wheeler, R. A.
name: Roitman, M. F.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The nucleus accumbens (NAc) plays a role in hedonic reactivity to taste stimuli. Learning can alter the hedonic valence of a given stimulus, and it remains unclear how the NAc encodes this shift. The present study examined whether the population response of NAc neurons to a taste stimulus is plastic using a conditioned taste aversion (CTA) paradigm. Electrophysiological and electromyographic (EMG) responses to intraoral infusions of a sucrose (0.3 M) solution were made in naïve rats (Day 1). Immediately following the session, half of the rats (n = 6; Paired) received an injection of lithium chloride (0.15 M; i.p.) to induce malaise and establish a CTA while the other half (n = 6; Unpaired) received a saline injection. Days later (Day 5), NAc recordings during infusions of sucrose were again made. Electrophysiological and EMG responses to sucrose did not differ between groups on Day 1. For both groups, the majority of sucrose responsive neurons exhibited a decrease in firing rate (77% and 71% for Paired and Unpaired, respectively). Following conditioning, in Paired rats, EMG responses were indicative of aversion. Moreover, the majority of responsive NAc neurons now exhibited an increase in firing rate (69%). Responses in Unpaired rats were unchanged by the experience. Thus, the NAc differentially encodes the hedonic value of the same stimulus based on learned associations.
Interaction between the basolateral amygdala and dorsal hippocampus is critical for cocaine memory reconsolidation and subsequent drug context-induced cocaine-seeking behavior in rats
Creators: name: Xie, X.
name: Cowhey, K. E.
name: Reittinger, A. M.
name: Lasseter, H. C.
name: Wells, A. M.
name: Fuchs, R. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Contextual stimulus control over instrumental drug-seeking behavior relies on the reconsolidation of context-response-drug associative memories into long-term memory storage following retrieval-induced destabilization. According to previous studies, the basolateral amygdala (BLA) and dorsal hippocampus (DH) regulate cocaine-related memory reconsolidation; however, it is not known whether these brain regions interact or independently control this phenomenon. To investigate this question, rats were trained to lever press for cocaine reinforcement in a distinct environmental context followed by extinction training in a different context. Rats were then briefly re-exposed to the cocaine-paired context to destabilize cocaine-related memories, or they were exposed to an unpaired context. Immediately thereafter, the rats received unilateral microinfusions of anisomycin (ANI) into the BLA plus baclofen/muscimol (B/M) into the contralateral (BLA/DH disconnection) or ipsilateral DH, or they received contralateral or ipsilateral microinfusions of vehicle. They then remained in their home cages overnight or for 21 d, followed by additional extinction training and a test of cocaine-seeking behavior (nonreinforced active lever responding). BLA/DH disconnection following re-exposure to the cocaine-paired context, but not the unpaired context, impaired subsequent drug context-induced cocaine-seeking behavior relative to vehicle or ipsilateral ANI + B/M treatment. Prolonged home cage stay elicited a time-dependent increase, or incubation, of drug-context-induced cocaine-seeking behavior, and BLA/DH disconnection inhibited this incubation effect despite some recovery of cocaine-seeking behavior. Thus, the BLA and DH interact to regulate the reconsolidation of cocaine-related associative memories, thereby facilitating the ability of drug-paired contexts to trigger cocaine-seeking behavior and contributing to the incubation of cocaine-seeking behavior.
Configurational entropy, transition rates, and optimal interactions for rapid folding in coarse-grained model proteins
Creators: name: Colberg, Margarita
name: Schofield, Jeremy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Under certain conditions, the dynamics of coarse-grained models of solvated proteins can be described using a Markov state model, which tracks the evolution of populations of configurations. The transition rates among states that appear in the Markov model can be determined by computing the relative entropy of states and their mean first passage times. In this paper, we present an adaptive method to evaluate the configurational entropy and the mean first passage times for linear chain models with discontinuous potentials. The approach is based on event-driven dynamical sampling in a massively parallel architecture. Using the fact that the transition rate matrix can be calculated for any choice of interaction energies at any temperature, it is demonstrated how each state's energy can be chosen such that the average time to transition between any two states is minimized. The methods are used to analyze the optimization of the folding process of two protein systems: the crambin protein, and a model with frustration and misfolding. It is shown that the folding pathways for both systems are comprised of two regimes: first, the rapid establishment of local bonds, followed by the subsequent formation of more distant contacts. The state energies that lead to the most rapid folding encourage multiple pathways, and either penalize folding pathways through kinetic traps by raising the energies of trapping states, or establish an escape route from the trapping states by lowering free energy barriers to other states that rapidly reach the native state.
Repeated output coupling of ultracold Feshbach molecules from a Cs BEC
Creators: name: Koeppinger, M. P.
name: Gregory, P. D.
name: Jenkin, D. L.
name: McCarron, D. J.
name: Marchant, A. L.
name: Cornish, S. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We investigate magnetoassociation of ultracold Feshbach molecules from a Bose- Einstein condensate of Cs atoms and explore the spectrum of weakly bound molecular states close to the atomic threshold. By exploiting the variation of magnetic field experienced by a molecular cloud falling in the presence of a magnetic field gradient, we demonstrate the repeated output coupling of molecules from a single atomic cloud using a Feshbach resonance at 19.89 G. Using this method we are able to produce up to 24 separate pulses of molecules from a single atomic condensate, with a molecular pulse created every 7.2 ms. Furthermore, by careful control of the magnetic bias field and gradient we are able to utilise an avoided crossing in the bound state spectrum at 13.3G to demonstrate exquisite control over the dynamics of the molecular clouds.
description: 17 pages, 9 figures