cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Η ιστορική εξέλιξη της Τοπικής Αυτοδιοίκησης στην Ελλάδα του 20ου και 21ου αιώνα
title: The historical evolution of Local Government in Greece during the 20th and 21st century
titleType: AlternativeTitle
Creators: name: Στούμπανου, Ιωάννα-Μαρία
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2022
Subjects: subject: Τοπική αυτοδιοίκηση -- Ελλάδα -- Ιστορία.
subject: Αποκέντρωση στη διοίκηση
subject: Ελλάδα -- Δημόσια διοίκηση
subject: Τοπική Αυτοδιοίκηση
subject: Πρωτοβάθμια
subject: Δευτεροβάθμια
subject: Οργανισμοί Τοπικής Αυτοδιοίκησης
subject: Κοινότητες
subject: Δήμοι
subject: Νομοί

description: Αρ. Εισ.: 19 cd
description: Η τοπική αυτοδιοίκηση αφορά σε ένα σύνολο οργανισμών, ως τμήμα της αυτόνομης δημόσιας διοίκησης, που αναλαμβάνουν σε επίπεδο τοπικής κοινωνίας, είτε αυτή ονομάζεται περιφέρεια, δήμος ή κοινότητα, την άσκηση του συνόλου των διοικητικών αρμοδιοτήτων. Διακρίνεται σε πρωτοβάθμια και δευτεροβάθμια και πρόκειται για έναν συνταγματικά κατοχυρωμένο θεσμό τόσο στην Ελλάδα όσο και διεθνώς. Στη χώρα μας κατοχυρώνεται στο άρθρο 102 του Συντάγματος. Ιστορικά, η διαδρομή της τοπικής αυτοδιοίκησης στη χώρα μας ακολουθεί τέσσερις διακριτές φάσεις. Αρχικά, κατά την προεπαναστατική περίοδο της οθωμανικής κατοχής, καθώς επίσης και πριν από αυτήν, με το σύστημα των κοινοτήτων, το οποίο διατηρήθηκε και επί της επαναστατικής περιόδου. Η δεύτερη φάση τοποθετείται στα πρώτα μετεπαναστατικά χρόνια έως το 1912 και χαρακτηρίζεται από την κατάργηση των κοινοτήτων και την καθιέρωση των δήμων. Επί της περιόδου αυτής τέθηκαν οι ουσιαστικές βάσεις της τοπικής αυτοδιοίκησης με το Διάταγμα της Αντιβασιλείας του 1833. Στην τρίτη φάση, παρατηρούμε τη συνύπαρξη δήμων και κοινοτήτων, μετά την αναβίωση των τελευταίων με το Νόμο ΔΝΖ΄ του 1912, επί κυβερνήσεως Ελευθέριου Βενιζέλου. Χρονικά η τρίτη φάση καταλαμβάνει το μεγαλύτερο μέρος του 20ου αιώνα, με βασικό της χαρακτηριστικό τον ουσιαστικό κατακερματισμό της πρωτοβάθμιας αυτοδιοίκησης. Η τέταρτη φάση εγκαινιάζεται με το Ν.2539/1997, κατ’ εφαρμογή του σχεδίου «Καποδίστριας», περί συγκρότησης της Πρωτοβάθμιας Τοπικής Αυτοδιοίκησης. Με αυτόν τον νόμο επετεύχθη σημαντικός περιορισμός του αριθμού των κοινοτήτων και αντίστοιχη αύξηση των δήμων. Σήμερα, ιδίως μετά το Ν. 3852/2010 (πρόγραμμα «Καλλικράτης»), όπως τροποποιήθηκε με τις διατάξεις του Ν.4555/2018 (πρόγραμμα «Κλεισθένης Ι»), διανύουμε μία ξεχωριστή πέμπτη φάση, όπου κυριαρχεί η ανασυγκρότηση της τοπικής αυτοδιοίκησης και τη σύσταση αποκεντρωμένων διοικήσεων, περιφερειών και δήμων.
Additional file 4: Figure S2. of Highly efficient generation of knock-in transgenic medaka by CRISPR/Cas9-mediated genome engineering
Creators: name: Watakabe, Ikuko
name: Hashimoto, Hisashi
name: Kimura, Yukiko
name: Yokoi, Saori
name: Naruse, Kiyoshi
name: Shin-Ichi Higashijima
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Nucleotide sequences of the joint region of the insertions for the sox5 and pax7a transgenic fish The PCR products that span the genomic DNA and the donor DNA (see Additional file 2: Table S2) were sequenced. The top two lines for each panel show the sequence of the genome and the donor. Underlined sequences correspond to sgRNA targets. The PAM sequences are indicated in green. The predicted digestion sites by CRISPR/Cas9 are indicated with arrowheads. Sequences in bold letters are expected to be present after the integrations. The predicted nucleotide sequence without an indel is shown in the third line as bold letters. (A) The 5′ side of the sox5 transgenic fish with the forward integration (#1, #3, and #4 strains; Additional file 2:Table S2). (B) The 5′ side of the sox5 transgenic fish with the reverse integration (#2 strains; Additional file 2: Table S2). (C) The 3′ side of the sox5 transgenic fish with the forward integration (#1, #2, #3, and #7 strains; Additional file 2: Table S2). (D) The 3′ side of the sox5 transgenic fish with the reverse integration (#6 strain; Additional file 2: Table S2). (E) The 5′ side of the pax7a transgenic fish with the forward integration (#1, #3, #4, and #6 strains; Additional file 2: Table S2). (F) The 5′ side of the pax7a transgenic fish with the reverse integration (#2 strains; Additional file 2: Table S2). (G) The 3′ side of the pax7a transgenic fish with the forward integration (#1and #6 strains; Additional file 2: Table S2). (H) The 3′ side of the pax7a transgenic fish with the reverse integration (#2, #3, #4, and #5 strains; Additional file 2: Table S2). (PDF 31 kb)
Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments
Creators: name: Takahashi, Ryuichi
name: Hamana, Takashi
name: Shirasaki, Masato
name: Namikawa, Toshiya
name: Nishimichi, Takahiro
name: Osato, Ken
name: Shiroyama, Kosei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present 108 full-sky gravitational lensing simulation data sets generated by performing multiple-lens plane ray-tracing through high-resolution cosmological $N$-body simulations. The data sets include full-sky convergence and shear maps from redshifts $z=0.05$ to $5.3$ at intervals of $150 \, h^{-1}{\rm Mpc}$ comoving radial distance (corresponding to a redshift interval of $Δz \simeq 0.05$ at the nearby universe), enabling the construction of a mock shear catalog for an arbitrary source distribution up to $z=5.3$. The dark matter halos are identified from the same $N$-body simulations with enough mass resolution to resolve the host halos of the Sloan Digital Sky Survey (SDSS) CMASS and Luminous Red Galaxies (LRGs). Angular positions and redshifts of the halos are provided by a ray-tracing calculation, enabling the creation of a mock halo catalog to be used for galaxy-galaxy and cluster-galaxy lensing. The simulation also yields maps of gravitational lensing deflections for a source redshift at the last scattering surface, and we provide 108 realizations of lensed cosmic microwave background (CMB) maps in which the post-Born corrections caused by multiple light scattering are included. We present basic statistics of the simulation data, including the angular power spectra of cosmic shear, CMB temperature and polarization anisotropies, galaxy-galaxy lensing signals for halos, and their covariances. The angular power spectra of the cosmic shear and CMB anisotropies agree with theoretical predictions within $5\%$ up to $\ell = 3000$ (or at an angular scale $θ> 0.5$ arcsin). The simulation data sets are generated primarily for the ongoing Subaru Hyper Suprime-Cam survey but are freely available for download at http://cosmo.phys.hirosaki-u.ac.jp/takahasi/allsky_raytracing.
description: 24 pages, 23 figures, typos corrected, accepted publication in ApJ
title: Προγνωστική: έλεγχος αθλητικών επιδόσεων
title: Predictive: Athletic Performance Control
titleType: AlternativeTitle
title: Predictive: athletic performance control
titleType: AlternativeTitle
Creators: name: Μουζάκη, Αγαθή
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2022
Subjects: Αναβολικά
Βιοσύνθεση
Δράση
Μεταβολισμός
Παρενέργειες
Ανίχνευση
Ντόπινγκ

description: Η χρήση απαγορευμένων ουσιών και μεθόδων, για την αύξηση της αθλητικής απόδοσης ή/και τη βελτίωση της εμφάνισης, είναι αυξημένη τα τελευταία χρόνια. Στα πλαίσια αυτά, ο Παγκόσμιος Οργανισμός Αντιντόπινγκ, WADA, ανανεώνει και ανακοινώνει κάθε χρόνο την Λίστα Απαγορευμένων Ουσιών και Μεθόδων. Σκοπός της παρούσας βιβλιογραφικής πτυχιακής εργασίας, είναι η ενημέρωση σχετικά με τη φυσιολογία και τον τρόπο δράσης των αναβολικών, η εξήγηση του τρόπου ανίχνευσής τους, κατά τον έλεγχο ντόπινγκ, αλλά και η προειδοποίηση σχετικά με τους κινδύνους των σκευασμάτων αυτών. Στην παρούσα ανασκόπηση γίνεται εκτενέστερη αναφορά των πιο διαδεδομένων απαγορευμένων ουσιών και συγκεκριμένα των Ανδρογόνων Αναβολικών Στεροειδών και των Πρωτεϊνικών Ορμονών. Πιο αναλυτικά, μελετάται η φυσιολογία τους, ο τρόπος με τον οποίο μεταφέρονται και συνδέονται με τα κύτταρα, για την εκτέλεση της δράσης τους, καθώς επίσης και ο μεταβολισμός και η απέκκριση τους. Η χρήση αυτών των ουσιών, αλλά και οι πρακτικές που ακολουθούν οι αθλητές και οι αθλούμενοι, εμφανίζουν πολλές παρενέργειες, μερικές από τις οποίες είναι πολύ σοβαρές και μπορεί να οδηγήσουν ακόμα και στο θάνατο. Οι βασικότερες διαταραχές, που θα αναλυθούν παρακάτω, αφορούν το ενδοκρινολογικό και το καρδιαγγειακό σύστημα, το ήπαρ, την εμφάνιση διαφόρων τύπων καρκίνου και πολλά άλλα. Τέλος, γίνεται εκτενής αναφορά των μεθόδων ανίχνευσης απαγορευμένων ουσιών, κατά τον έλεγχο ντόπινγκ, οι οποίες βασίζονται σε τεχνικές φασματομετρίας και χρωματογραφίας.
title: Ολοκληρωμένη διαχείριση αστικών δικτύων ύδρευσης
Creators: name: Kanakoudis, Vasilis
name: Tsitsifli, Stavroula
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΔΙΚΤΥΑ ΥΔΡΕΥΣΗΣ
ΜΗ ΑΝΤΑΠΟΔΟΤΙΚΟ ΝΕΡΟ
ΣΥΣΤΗΜΑΤΑ ΥΠΟΣΤΗΡΙΞΗΣ ΑΠΟΦΑΣΕΩΝ
ΔΕΙΚΤΕΣ ΑΞΙΟΛΟΓΗΣΗΣ
ΥΔΑΤΙΚΟ ΙΣΟΖΥΓΙΟ
ΑΠΩΛΕΙΕΣ ΝΕΡΟΥ
ΚΟΣΤΟΣ ΝΕΡΟΥ
ΠΡΑΓΜΑΤΙΚΕΣ ΑΠΩΛΕΙΕΣ
ΦΑΙΝΟΜΕΝΕΣ ΑΠΩΛΕΙΕΣ
ΔΙΑΡΡΟΕΣ
Water Distribution Networks
Non-revenue Water
Water Losses
Decision Support Systems
Performance Indicators
Water Balance
Water Cost
Real Losses
Apparent Losses
Leaks

description: Το βιβλίο αυτό απευθύνεται σε προπτυχιακούς και μεταπτυχιακούς φοιτητές που διδάσκονται θέματα συστημάτων υδατικών πόρων και διαχείρισης δικτύων, καθώς και σε διαχειριστές δικτύων ύδρευσης που επιθυμούν να κατανοήσουν το αντίστοιχο θεωρητικό υπόβαθρο.
Το βιβλίο αναφέρεται στην ολοκληρωμένη διαχείριση αστικών δικτύων ύδρευσης ξεκινώντας από τον προσδιορισμό των προβλημάτων που εμφανίζουν τα δίκτυα μέσω της διάγνωσης των συμπτωμάτων τους, τη διερεύνηση των αιτιών τους και γενικά την εκτίμηση του επιπέδου λειτουργίας τους. Γίνεται εκτενής αναφορά στις υπάρχουσες μεθοδολογίες εκτίμησης του επιπέδου λειτουργίας των δικτύων και συγκεκριμένα στο Μη Ανταποδοτικό Νερό, τα βασικά χαρακτηριστικά του και τις αιτίες που το προκαλούν. Παρουσιάζεται το Υδατικό Ισοζύγιο και οι Δείκτες Αξιολόγησης που υπάρχουν στην βιβλιογραφία καθώς και οι τροποποιήσεις που έχουν αναπτυχθεί από τους συγγραφείς. Παρουσιάζονται επίσης όλες οι τεχνικές που έχουν αναπτυχθεί για την μείωση του Μη Ανταποδοτικού Νερού στοχεύοντας στα επιμέρους συστατικά του και συγκεκριμένα στις φαινόμενες (ή εμπορικές / πώλησης) και στις πραγματικές (ή φυσικές) απώλειες. Τέλος παρουσιάζονται, αναλύονται και συγκρίνονται όλα τα υπολογιστικά εργαλεία που χρησιμοποιούνται για την αξιολόγηση των αστικών δικτύων ύδρευσης καθώς και παραδείγματα εφαρμογής. Γίνεται αναφορά στη νομοθεσία και συγκεκριμένα στην Οδηγία Πλαίσιο για τα Νερά (2000/60/EC). Τέλος παρουσιάζεται με την μορφή βημάτων η ολοκληρωμένη μεθοδολογία διαχείρισης των αστικών δικτύων ύδρευσης. Για την πιο αποδοτική χρήση αυτού του βιβλίου παρατίθενται παραδείγματα και ασκήσεις, όπως επίσης διαδραστικό υλικό από παρουσιάσεις. Παρουσιάζονται και συνδέονται διαδραστικά τα υπολογιστικά εργαλεία για την εκτίμηση του επιπέδου λειτουργίας των δικτύων ύδρευσης και το σύστημα υποστήριξης λήψης αποφάσεων που αναπτύχθηκε στo πλαίσιo του έργου WATERLOSS για τον προσδιορισμό των πιθανών μέτρων για τη μείωση του Μη Ανταποδοτικού Νερού.
Upper bounds for constant slope $p$-adic families of modular forms
Creators: name: Bergdall, John
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F33 (11F80, 11F85)

description: We study $p$-adic families of eigenforms for which the $p$-th Hecke eigenvalue $a_p$ has constant $p$-adic valuation ("constant slope families"). We prove two separate upper bounds for the size of such families. The first is in terms of the logarithmic derivative of $a_p$ while the second depends only on the slope of the family. We also investigate the numerical relationship between our results and the former Gouvêa--Mazur conjecture.
description: 22 pages. 4 tables. Minor revision. Final version. To appear in Selecta Mathematica
Possible hadronic molecules composed of the doubly charmed baryon and nucleon
Creators: name: Meng, Lu
name: Li, Ning
name: Zhu, Shi-lin
Publisher: name: arXiv
Year: 2017
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 perform a systematical investigation of the possible deuteron-like bound states with configuration $Ξ_{cc}N (\bar{N})$, where $N(\bar{N})$ denotes the nucleon (anti-nucleon), in the framework of the one-boson-exchange-potential model. In the spin-triplet sector we take into account both the ${}^3S_1$ and ${}^3D_1$ channels due to non-vanishing tensor force. There exist several candidates of the loosely bound molecular states for the $Ξ_{cc}N$ and $Ξ_{cc}\bar{N}$ systems, which lie below the threshold of $Λ_cΛ_c$ or $Λ_c{\barΛ}_c$. We also investigate the possible loosely bound states with configurations $Λ_cN(\bar{N})$ and $Σ_cN(\bar{N})$. These molecular candidates may be searched for at Belle II and LHC in the near future.
description: 14 pages, 5 figures
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 888
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 888, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 888, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
On a topological version of Pach's overlap theorem
Creators: name: Bukh, Boris
name: Hubard, Alfredo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 52A35, 05D99, 05D40, 52C10

description: Pach showed that every $d+1$ sets of points $Q_1,\dotsc,Q_{d+1} \subset \mathbb{R}^d$ contain linearly-sized subsets $P_i\subset Q_i$ such that all the transversal simplices that they span intersect. We show, by means of an example, that a topological extension of Pach's theorem does not hold with subsets of size $C(\log n)^{1/(d-1)}$. We show that this is tight in dimension $2$, for all surfaces other than $\mathbb{S}^2$. Surprisingly, the optimal bound for $\mathbb{S}^2$ in the topological version of Pach's theorem is of the order $(\log n)^{1/2}$. We conjecture that, among higher-dimensional manifolds, spheres are similarly distinguished. This improves upon the results of Bárány, Meshulam, Nevo and Tancer.
description: 9 pages, 2 figures
Anomalous Lorentz and CPT violation from a local Chern-Simons-like term in the effective gauge-field action
Creators: name: Ghosh, K. J. B.
name: Klinkhamer, F. R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider four-dimensional chiral gauge theories defined over a spacetime manifold with topology $\mathbb{R}^3 \times S^1$ and periodic boundary conditions over the compact dimension. The effective gauge-field action is calculated for Abelian $U(1)$ gauge fields $A_μ(x)$ which depend on all four spacetime coordinates (including the coordinate $x^{4}\in S^1$ of the compact dimension) and have vanishing components $A_{4}(x)$ (implying trivial holonomies in the 4-direction). Our calculation shows that the effective gauge-field action contains a local Chern-Simons-like term which violates Lorentz and CPT invariance. This result is established perturbatively with a generalized Pauli-Villars regularization and nonperturbatively with a lattice regularization based on Ginsparg-Wilson fermions.
description: 48 pages, v7: published version
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Cart. 168 (11 H 66), f. 0093r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2010
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0093r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0093r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
tt-geometry of Tate motives over algebraically closed fields
Creators: name: Gallauer, Martin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 14C15, 14F42, 19E15, 18E30, 18D10, 18G99

description: We study Tate motives with integral coefficients through the lens of tensor triangular geometry. For some base fields, including the field of algebraic numbers and the algebraic closure of a finite field, we arrive at a complete description of the tensor triangular spectrum and a classification of thick tensor ideals.
description: 38 pages; v3: completes description of structure sheaf on tt-spectrum; v4: final accepted version
Certification and Quantification of Multilevel Quantum Coherence
Creators: name: Ringbauer, Martin
name: Bromley, Thomas R.
name: Cianciaruso, Marco
name: Lami, Ludovico
name: Lau, W. Y. Sarah
name: Adesso, Gerardo
name: White, Andrew G.
name: Fedrizzi, Alessandro
name: Piani, Marco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum coherence, present whenever a quantum system exists in a superposition of multiple classically distinct states, marks one of the fundamental departures from classical physics. Quantum coherence has recently been investigated rigorously within a resource-theoretic formalism. However, the finer-grained notion of multilevel coherence, which explicitly takes into account the number of superposed classical states, has remained relatively unexplored. A comprehensive analysis of multi-level coherence, which acts as the single-party analogue to multi-partite entanglement, is essential for understanding natural quantum processes as well as for gauging the performance of quantum technologies. Here we develop the theoretical and experimental groundwork for characterizing and quantifying multilevel coherence. We prove that non-trivial levels of purity are required for multilevel coherence, as there is a ball of states around the maximally mixed state that do not exhibit multilevel coherence in any basis. We provide a simple necessary and sufficient analytical criterion to verify multilevel coherence, which leads to a complete classification for three-level systems. We present the robustness of multilevel coherence, a bona fide quantifier which we show to be numerically computable via semidefinite programming and experimentally accessible via multilevel coherence witnesses. We further verify and lower-bound the robustness of multilevel coherence by performing a semi-device-independent phase discrimination task, implemented experimentally with four-level probes in a photonic setup. Our results contribute to understanding the operational relevance of genuine multilevel coherence, also by demonstrating the key role it plays in enhanced phase discrimination---a primitive for quantum communication and metrology---and suggest new ways to reliably test the quantum behaviour of physical systems.
description: 20 pages, 6 figures. (v2) Title changed, presentation improved. (v3) Expanded and updated with new results, including a necessary and sufficient analytical criterion to detect multilevel coherence; one co-author added
Point Of Care Ultrasound By Surgeons: A Multicentric Trial (POCUSS Trial)
Creators: name: Dumbrava, Bogdan-Daniel
Publisher: name: Royal College of Surgeons in Ireland
Year: 2022
Subjects: subject: 110323 Surgery
subject: FOS: Clinical medicine
subject: 110320 Radiology and Organ Imaging

description: Ultrasound is extensively used in continental Europe and the United States in the prompt assessment of patients after trauma, or acute abdominal emergencies. The capacity of non-radiology specialists to perform focused point-of-care ultrasound relevant to their field of expertise is gaining acceptability, and it is considered a technological third hand, or even the modern-day stethoscope. Ireland has been slow to adopt this technique, mainly it would seem for medico-legal reasons, and has hitherto pursued a more conservative approach.
This work aims to demonstrate that surgeon-performed point-of-care ultrasound can be successfully implemented in Irish hospitals, with a tailored approach, to the advantage of the Irish Health Service.
The first study in this thesis is focused on surgeon-performed ultrasound in acute biliary disease. Acute cholecystitis is one of the commonest presentations to the on-call general surgeon, be it in Irish hospitals or worldwide. Ultrasound is the mainstay of diagnostic imaging but there can often be delays before an ultrasound can be performed in the radiology department. It would make sense to have the diagnosis made at the bedside along with clinical examination, as is happening in many parts of Europe and in the United States. This can be confirmed in the imaging department if there is any doubt, or if intervention is required.
The second study is aimed at surgeon-performed ultrasound in acute diverticulitis, which can be thought of as a more advanced procedure. Most of patients with acute diverticulitis can be conservatively managed. Computerized tomography (CT) scanning changes management in a very few instances. It is thus intuitive that ultrasound can diminish the number of unnecessary CTs and subsequent radiation exposure, costs and length of hospital stay.
Random walks on rings and modules
Creators: name: Ayyer, Arvind
name: Steinberg, Benjamin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: Probability (math.PR)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 60J10, 20M30, 13M99, 05E10, 60C05

description: We consider two natural models of random walks on a module $V$ over a finite commutative ring $R$ driven simultaneously by addition of random elements in $V$, and multiplication by random elements in $R$. In the coin-toss walk, either one of the two operations is performed depending on the flip of a coin. In the affine walk, random elements $a \in R,b \in V$ are sampled independently, and the current state $x$ is taken to $ax+b$. For both models, we obtain the complete spectrum of the transition matrix from the representation theory of the monoid of all affine maps on $V$ under a suitable hypothesis on the measure on $V$ (the measure on $R$ can be arbitrary).
description: 26 pages, 1 figure, minor improvements, final version
Smoothed generalized free energies for thermodynamics
Creators: name: van der Meer, Remco
name: Ng, Nelly Huei Ying
name: Wehner, Stephanie
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the study of thermodynamics for nanoscale quantum systems, a family of quantities known as generalized free energies have been derived as necessary and sufficient conditions that govern state transitions. These free energies become important especially in the regime where the system of interest consists of only a few (quantum) particles. In this work, we introduce a new family of smoothed generalized free energies, by constructing explicit smoothing procedures that maximize/minimize the free energies over an $ \varepsilon$-ball of quantum states. In contrast to previously known smoothed free energies, these quantities now allow us to make an operational statement for approximate thermodynamic state transitions. We show that these newly defined smoothed quantities converge to the standard free energy in the thermodynamic limit.
description: 6 pages main text + 12 pages appendix, revised version with new figure and corollary, results unchanged
Additional file 1: of Effect of the 2015 earthquake on pediatric inpatient pattern at a tertiary care hospital in Nepal
Creators: name: Bishnu Giri
name: Chapagain, Ram
name: Samana Sharma
name: Shrestha, Sandeep
name: Ghimire, Sunita
name: P. Shankar
Publisher: name: figshare
Year: 2018
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: Plant Biology

description: Proforma: Effect of Earthquake on Pediatric Inpatient Pattern. Data collection instrument. (DOCX 12Â kb)
Classical fields in the one-dimensional Bose gas: applicability and determination of the optimal cutoff
Creators: name: Pietraszewicz, J.
name: Deuar, P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: To finalize information about the accuracy of the classical field approach for the 1d Bose gas, the lowest temperature quasicondensate was studied by comparing the extended Bogoliubov model of Mora and Castin, to its classical field analogue. The parameters for which the physics is well described by matter waves are now presented for all 1d regimes, and concurrently, the optimal cutoff that best matches all observables together is also provided. This cutoff rises strongly with density when the chemical potential is higher than the thermal energy to account for kinetic energy. As a consequence, clouds that reach this coldest quantum fluctuating regime are better described using a trap basis than plane waves. This contrasts with higher temperature clouds for which the basis choice is less important. In passing, estimates for chemical potential, density fluctuations, kinetic and interaction energy in the low temperature quasicondensate are obtained up to several leading terms.
description: 13 pages, 9 figures: Accepted version. The long v1 has been published in two parts. This is the second part. The first part was published as Phys. Rev. A 97, 053607 (2018)
Stellar equilibrium configurations of white dwarfs in the $f(R,T)$ gravity
Creators: name: Carvalho, G. A.
name: Lobato, R. V.
name: Moraes, P. H. R. S.
name: Arbañil, José D. V.
name: Marinho, R. M.
name: Otoniel, E.
name: Malheiro, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we investigate the equilibrium configurations of white dwarfs in a modified gravity theory, na\-mely, $f(R,T)$ gravity, for which $R$ and $T$ stand for the Ricci scalar and trace of the energy-momentum tensor, respectively. Considering the functional form $f(R,T)=R+2λT$, with $λ$ being a constant, we obtain the hydrostatic equilibrium equation for the theory. Some physical properties of white dwarfs, such as: mass, radius, pressure and energy density, as well as their dependence on the parameter $λ$ are derived. More massive and larger white dwarfs are found for negative values of $λ$ when it decreases. The equilibrium configurations predict a maximum mass limit for white dwarfs slightly above the Chandrasekhar limit, with larger radii and lower central densities when compared to standard gravity outcomes. The most important effect of $f(R,T)$ theory for massive white dwarfs is the increase of the radius in comparison with GR and also $f(R)$ results. By comparing our results with some observational data of massive white dwarfs we also find a lower limit for $λ$, namely, $λ>- 3\times 10^{-4}$.
description: To be published in EPJC
Additional file 3: Figure S3. of Ongoing niche differentiation under high gene flow in a polymorphic brackish water threespine stickleback (Gasterosteus aculeatus) population
Creators: name: Østbye, Kjartan
name: Taugbøl, Annette
name: Ravinet, Mark
name: Harrod, Chris
name: Pettersen, Ruben
name: Bernatchez, Louis
name: Vøllestad, Leif
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Developmental Biology

description: DAPC analyses (Dicriminant analysis of principal components) in adegenet (Jombart 2008) performed on the three lateral plate morphs of threespine stickleback from Lake Engervann. (PDF 299 kb)
title: Θεωρίες μάθησης και εκπαιδευτικό λογισμικό
Creators: name: Dimitriadis, Stavros
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΘΕΩΡΙΕΣ ΜΑΘΗΣΗΣ
ΕΚΠΑΙΔΕΥΤΙΚΕΣ ΤΕΧΝΟΛΟΓΙΕΣ
ΕΚΠΑΙΔΕΥΤΙΚΟ ΛΟΓΙΣΜΙΚΟ
ΣΧΕΔΙΑΣΗ ΕΚΠΑΙΔΕΥΤΙΚΟΥ ΛΟΓΙΣΜΙΚΟΥ
Learning Theories
Educational Technologies
Educational Software
Educational Software Design

description: Το βιβλίο καλύπτει τις σύγχρονες θεωρίες μάθησης που προτείνουν προδιαγραφές για τη σχεδίαση και αξιοποίηση εκπαιδευτικού λογισμικού (ΕΛ). Τα κεφάλαια είναι σχεδιασμένα έτσι ώστε καθένα από αυτά να αναφέρεται σε μια συγκεκριμένη θεωρία συνοδευόμενη από θέματα σχεδίασης/ανάπτυξης ΕΛ που προδιαγράφεται από τη θεωρία. Το βιβλίο προτείνεται για αναγνώστες με υπόβαθρο:
(α) Τεχνολογικό (πχ. φοιτητές τμημάτων Πληροφορικής) περιλαμβάνοντας θέματα όπως: αρχιτεκτονική λογισμικού και διαγράμματα UML, σχεδίαση διεπαφής, γλώσσες/εργαλεία μοντελοποίησης (IMS-LD), αρχιτεκτονικές προσαρμοστικών και ευφυών τεχνολογικών συστημάτων για τη μάθηση, κλπ.
(β) Παιδαγωγικό (πχ. φοιτητές Παιδαγωγικών τμημάτων) καλύπτοντας θέματα: θεωρίες μάθησης & σημαντικοί εκπρόσωποί τους, διδακτικά μοντέλα, μαθησιακές προδιαγραφές ΕΛ, παιδαγωγική αξιοποίηση ΕΛ, κλπ.
Το βιβλίο περιλαμβάνει οδηγό χρήσης που προτείνει επιλογές κεφαλαίων και θεματικών ενοτήτων ανάλογα με τον ιδιαίτερο στόχο και υπόβαθρο του διδάσκοντος και των εκπαιδευομένων. Η δομή του βιβλίου οργανώνεται ως εξής:
(α) Κεφάλαιο 1: εισαγωγικό κεφάλαιο. Παρουσιάζει ένα συνεπές εννοιολογικό πλαίσιο που αποτελεί βάση για την ανάπτυξη των επόμενων κεφαλαίων.
(β) Κεφάλαια 2-7: Κάθε κεφάλαιο φέρει τον τίτλο μιας θεωρίας μάθησης και παρουσιάζει (Α) τις θέσεις της θεωρίας και σχετικές διδακτικές προσεγγίσεις, και (Β) την επίδρασή της στη σχεδίαση ΕΛ (παραδείγματα και αρχιτεκτονικές σχετικών λογισμικών, επίδραση στη σχεδίαση διεπαφών χρήστη, σύγχρονα τεχνολογικά εργαλεία και εξελίξεις).
(γ) Κεφάλαια 8-9: ειδικά κεφάλαια που εμβαθύνουν σε 2 από τις σημαντικότερες σήμερα περιοχές της τεχνολογικά υποστηριζόμενης μάθησης: (1) Συνεργατική μάθηση με την υποστήριξη υπολογιστή, και (β) Προσαρμοστικά και Ευφυή συστήματα (με έμφαση επίσης στη συνεργασία).
Ακόμη περιλαμβάνεται και ένα Παράρτημα (Αρχιτεκτονική λογισμικού & διαγράμματα UML).
Στο τέλος κάθε κεφαλαίου υπάρχει η ενότητα "Βοηθήματα Μελέτης" με υλικό εμβάθυνσης (διαδραστικές ερωτήσεις, πηγές,κά)
Flat morphisms of finite presentation are very flat
Creators: name: Positselski, Leonid
name: Slavik, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: Principal affine open subsets in affine schemes are an important tool in the foundations of algebraic geometry. Given a commutative ring $R$, $\,R$-modules built from the rings of functions on principal affine open subschemes in $\operatorname{Spec}R$ using ordinal-indexed filtrations and direct summands are called very flat. The related class of very flat quasi-coherent sheaves over a scheme is intermediate between the classes of locally free and flat sheaves, and has serious technical advantages over both. In this paper we show that very flat modules and sheaves are ubiquitous in algebraic geometry: if $S$ is a finitely presented commutative $R$-algebra which is flat as an $R$-module, then $S$ is a very flat $R$-module. This proves a conjecture formulated in the February 2014 version of the long preprint arXiv:1209.2995. We also show that the (finite) very flatness property of a flat module satisfies descent with respect to commutative ring homomorphisms of finite presentation inducing surjective maps of the spectra.
description: LaTeX 2e, 56 pages; v.2: small additions in sections 0.1, 0.7, 1.1, 1.7, 5.3, and 5.4, several references added; v.3: small expositional improvements, particularly in section 2; v.4: abstract expanded, section 0.12 inserted; v.5: two references added, several misprints corrected
Color Characters for White Hot String Bits
Creators: name: Curtright, Thomas L.
name: Raha, Sourav
name: Thorn, Charles B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The state space of a generic string bit model is spanned by $N\times N$ matrix creation operators acting on a vacuum state. Such creation operators transform in the adjoint representation of the color group $U(N)$ (or $SU(N)$ if the matrices are traceless). We consider a system of $b$ species of bosonic bits and $f$ speciesof fermionic bits. The string, emerging in the $N\to\infty$ limit, identifies $P^+=mM\sqrt{2}$ with $M$ the bit number operator and $P^-=H\sqrt{2}$ with $H$ the system Hamiltonian. We study the thermal properties of this string bit system in the case $H=0$, which can be considered the tensionless string limit: the only dynamics is restricting physical states to color singlets. Then the thermal partition function ${\rm Tr} e^{-βmM}$ can be identified, putting $x=e^{-βm}$, with a generating function $χ_0^{bf}(x)$, for which the coefficient of $x^n$ in its expansion about $x=0$ is the number of color singlets with bit number $M=n$. This function is a purely group theoretic object, which is well-studied in the literature. We show that at $N=\infty$ this system displays a Hagedorn divergence at $x=1/(b+f)$ with ultimate temperature $T_H=m/\ln(b+f)$. The corresponding function for finite $N$ is perfectly finite for $0
description: 24 pages, 2 figures, Eq(52) correctedn new equation (54), and typos corrected
Spin-squeezed atomic crystal
Creators: name: Kajtoch, Dariusz
name: Witkowska, Emilia
name: Sinatra, Alice
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a method to obtain a regular arrangement of two-level atoms in a three-dimensional optical lattice with unit filling, where all the atoms share internal state coherence and metrologically useful quantum correlations. Such a spin-squeezed atomic crystal is obtained by adiabatically raising an optical lattice in an interacting two-component Bose-Einstein condensate. The scheme could be directly implemented on a microwave transition with state-of-the art techniques and used in optical-lattice atomic clocks with bosonic atoms to strongly suppress the collisional shift and benefit from the spins quantum correlations at the same time.
Geometrical Formulation of Relativistic Mechanics
Creators: name: Chanda, Sumanto
name: Guha, Partha
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The relativistic Lagrangian in presence of potentials was formulated directly from the metric, with the classical Lagrangian shown embedded within it. Using it we formulated covariant equations of motion, a deformed Euler-Lagrange equation, and relativistic Hamiltonian mechanics. We also formulate a modified local Lorentz transformation, such that the metric at a point is invariant only under the transformation defined at that point, and derive the formulae for time-dilation, length contraction, and gravitational redshift. Then we compare our formulation under non-relativistic approximations to the conventional ad-hoc formulation, and we briefly analyze the relativistic Lienard oscillator and the spacetime it implies.
description: 24 pages
Aharonov-Bohm Scattering by Vortices of Dimensionally-Reduced Yang-Mills Field
Creators: name: Shiraishi, Kiyoshi
name: Nakamula, Atsushi
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: If two dimensions of six-dimensional space-time are compactified, a topological configuration of Yang-Mills gauge field appears as a cosmic string in four dimensions, whose thickness is of the same order as the size of the compact space. We consider scattering of low-energy fermions by this object.
description: 5 pages, no figure
Topological mirror symmetry for parabolic Higgs bundles
Creators: name: Gothen, Peter B.
name: Oliveira, André G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove the topological mirror symmetry conjecture of Hausel-Thaddeus for the moduli space of strongly parabolic Higgs bundles of rank two or three, with full flags. Although the main theorem is proved only for rank at most three, most of the results are proved for any prime rank.
description: 37 pages; minor changes. Final version: to appear in J. Geom. Phys
Chebyshev-Taylor parameterization of stable/unstable manifolds for periodic orbits: implementation and applications
Creators: name: James, J. D. Mireles
name: Murray, Maxime
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper develops a computational method for studying stable/unstable manifolds attached to periodic orbits of differential equations. The method uses high order Chebyshev-Taylor series approximations in conjunction with the parameterization method -- a general functional analytic framework for invariant manifolds. The parameterization method can follow folds in the embedding, recovers the dynamics on the manifold through a simple conjugacy, and admits a natural notion of a-posteriori error analysis. The key to the approach is the derivation of a recursive system of linear differential equations describing the Taylor coefficients of the invariant manifold. We find periodic solutions of these equations by solving a coupled collection of boundary value problems with Chebyshev spectral methods. We discuss the performance of the method for the Lorenz system, and for circular restricted three and four body problems. We also illustrate the use of the method as a tool for computing cycle-to-cycle connecting orbits.
A priori estimates for the 3D compressible free-boundary Euler equations with surface tension in the case of a liquid
Creators: name: Disconzi, Marcelo M.
name: Kukavica, Igor
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We derive a priori estimates for the compressible free-boundary Euler equations with surface tension in three spatial dimensions in the case of a liquid. These are estimates for local existence in Lagrangian coordinates when the initial velocity and initial density belong to $H^3$, with an extra regularity condition on the moving boundary, thus lowering the regularity of the initial data. Our methods are direct and involve two key elements: the boundary regularity provided by the mean curvature, and a new compressible Cauchy invariance.
description: arXiv admin note: text overlap with arXiv:1708.00086
Additional file 6: Table S4. of Performance of a prognostic 31-gene expression profile in an independent cohort of 523 cutaneous melanoma patients
Creators: name: Zager, Jonathan
name: Gastman, Brian
name: Sancy Leachman
name: Gonzalez, Rene
name: Fleming, Martin
name: Ferris, Laura
name: Jonhan Ho
name: Miller, Alexander
name: Cook, Robert
name: Covington, Kyle
name: Meldi-Plasseraud, Kristen
name: Middlebrook, Brooke
name: Kaminester, Lewis
name: Greisinger, Anthony
name: Estrada, Sarah
name: Pariser, David
name: Cranmer, Lee
name: Messina, Jane
name: Vetto, John
name: Wayne, Jeffrey
name: Delman, Keith
name: Lawson, David
name: Pedram Gerami
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Accuracy of the GEP test, limiting GEP result to the normal confidence Class 1A or Class 2B groups. (DOCX 13 kb)
$\mathrm{H}^4(\mathrm{Co}_0;\mathbf{Z}) = \mathbf{Z}/24$
Creators: name: Johnson-Freyd, Theo
name: Treumann, David
Publisher: name: arXiv
Year: 2017
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We show that the fourth integral cohomology of Conway's group $\mathrm{Co}_0$ is a cyclic group of order $24$, generated by the first fractional Pontryagin class of the $24$-dimensional representation.
description: 24 pages, 1 large table, Int. Math. Res. Not. IMRN 2018
Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at sqrt(s) = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for physics beyond the standard model in the final state with two same-flavour leptons (electrons or muons) and two quarks produced in proton-proton collisions at sqrt(s) = 13 TeV is presented. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 2.3 inverse femtobarns. The observed data are in good agreement with the standard model background prediction. The results of the measurement are interpreted in the framework of a recently proposed model in which a heavy Majorana neutrino, N(l), stems from a composite-fermion scenario. Exclusion limits are set for the first time on the mass of the heavy composite Majorana neutrino, m[N(l)], and the compositeness scale Lambda. For the case m[N(l)] = Lambda, the existence of N(e) (N(mu)) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level.
description: Replaced with the published version. Added the journal reference and DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-16-026 (CMS Public Pages)
DEVELOPMENT AND IN-SITU CHARACTERIZATION OF BI-LAYERED LAMINATED COMPOSITES FOR ENHANCED MOISTURE BARRIER PERFORMANCE
Creators: name: Gandikota, Ibaad
Publisher: name: Digital Repository at the University of Maryland
Year: 2023
Subjects: subject: Mechanical engineering
subject: FOS: Mechanical engineering

description: Silicone encapsulations are widely used in high-temperature electronic applications, providing excellent properties like thermal stability, high purity, and chemical resistance. However, silicone is susceptible to moisture-induced failures due to high moisture permeability. This study mainly focuses on improving the moisture ingression characteristics of the silicone encapsulation by adding a polyurethane moisture barrier layer. This study focuses on the effects of moisture ingression by adding polyurethane and testing with embedded relative humidity sensors at different environmental conditions. The diffusivity of both the bi-layered composites and the pure encapsulation materials was assessed using two distinct experimental methods for the calculation of diffusivity based on the principles of 1-dimensional Fick's law of diffusion. The diffusivities were statistically analyzed to determine significant differences between the samples, and the experiment yielded a minimum of 65% reduction in diffusivity across the samples. Furthermore, a thermomechanical analysis was performed on two different GaN power MOSFETs by the application of different underfill and potting encapsulations to determine stresses and strains on the solder bumps.
Distance and Similarity Measures Effect on the Performance of K-Nearest Neighbor Classifier -- A Review
Creators: name: Prasath, V. B. Surya
name: Alfeilat, Haneen Arafat Abu
name: Hassanat, Ahmad B. A.
name: Lasassmeh, Omar
name: Tarawneh, Ahmad S.
name: Alhasanat, Mahmoud Bashir
name: Salman, Hamzeh S. Eyal
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The K-nearest neighbor (KNN) classifier is one of the simplest and most common classifiers, yet its performance competes with the most complex classifiers in the literature. The core of this classifier depends mainly on measuring the distance or similarity between the tested examples and the training examples. This raises a major question about which distance measures to be used for the KNN classifier among a large number of distance and similarity measures available? This review attempts to answer this question through evaluating the performance (measured by accuracy, precision and recall) of the KNN using a large number of distance measures, tested on a number of real-world datasets, with and without adding different levels of noise. The experimental results show that the performance of KNN classifier depends significantly on the distance used, and the results showed large gaps between the performances of different distances. We found that a recently proposed non-convex distance performed the best when applied on most datasets comparing to the other tested distances. In addition, the performance of the KNN with this top performing distance degraded only about $20\%$ while the noise level reaches $90\%$, this is true for most of the distances used as well. This means that the KNN classifier using any of the top $10$ distances tolerate noise to a certain degree. Moreover, the results show that some distances are less affected by the added noise comparing to other distances.
description: 39 pages, 6 figures, 17 tables, revised text and added extra experiments