cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Factors that facilitate and hinder the constructive use of anger as areported by mothers of preschool children
Creators: name: Medic, Maria Bozica
Publisher: name: University of British Columbia
Year: 2009

description: The intent of this study is to explore what facilitates and hinder the constructive use of anger in the normative and generally positive mother-child relationship. Eleven mothers of preschoolers were interviewed. Flanagan’s (1954) critical incidents interview was used to elicit 46 usable incidents describing anger experiences. Analysis of these incidents revealed four factors that facilitate the constructive use of anger: (a) responsive self-awareness, (b) empathy, (c) separation, and (d) relief. The incidents revealed furthermore that there were four basic response and resolution patterns to anger: (a) a constructive response and resolution, (b) a coercive response and resolution, (c) a constructive response with a coercive resolution, and (d) a coercive response and resolution. Combining the facilitating factors and response styles produce eight differential plots which describe how anger was resolved once it was aroused. The story plots were found to be reliable. Participants also responded to 13 questions that arose from a preliminary literature review. The responses to these questions were summarized in seven primary themes: (a) anger is a part of the parenting relationship; (b) self-awareness of our own anger helps us manage more constructively; (c) outside factors such as fatigue, time constraint, repetition, competing demands, and noncompliance can affect anger arousal and its prolongation; (d) having a support network enables us to put our experience in perspective and be more accepting of our own experiences; (e) books, videos, and parenting courses are among the most influential sources in helping parents to deal with anger constructively; (f) children need to see and learn how to handle anger; and (g) anger needs to be accompanied with an explanation and a resolution. These themes represent the contextual thinking and actions that facilitate the constructive use of anger between a mother and her preschool child.
Fragmentation of Massive Protostellar Disks
Creators: name: Kratter, Kaitlin M.
name: Matzner, Christopher D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine whether massive-star accretion disks are likely to fragment due to self-gravity. Rapid accretion and high angular momentum push these disks toward fragmentation, whereas viscous heating and the high protostellar luminosity stabilize them. We find that for a broad range of protostar masses and for reasonable accretion times, massive disks larger than ~150 AU are prone to fragmentation. We develop an analytical estimate for the angular momentum of accreted material, extending the analysis of Matzner and Levin (2005) to account for strongly turbulent initial conditions. In a core-collapse model, we predict that disks are marginally prone to fragmentation around stars of about four to 15 solar masses -- even if we adopt conservative estimates of the disks' radii and tendency to fragment. More massive stars are progressively more likely to fragment, and there is a sharp drop in the stability of disk accretion at the very high accretion rates expected above 110 solar masses. Fragmentation may starve accretion in massive stars, especially above this limit, and is likely to create swarms of small, coplanar companions.
description: 15 pages, 7 figures, accepted for publication in MNRAS, updated version with minor changes to text
Visual refinement of genome annotations with Apollo in a community environment
Creators: name: Dunn, Nathan
name: Unni, Deepak
name: Diesh, Colin
name: Rasche, Helena
name: Bretaudeau, Anthony
name: Nomi Harris
name: Holmes, Ian
Publisher: name: F1000 Research Limited
Year: 2019

description: The Galaxy platform provides a powerful environment for annotating genomes with a large selection of tools and workflows for assembling, filtering, and generating annotations as demonstrated by the Galaxy Genome Annotation (GGA) project (http://bit.ly/galaxy-genome-annotation). Because visual inspection and editing of genome annotations is an important step in making sure that generated elements are valid, many other projects utilizing Galaxy also include the web-based genome annotation editor Apollo (https://github.com/GMOD/Apollo/)[1]. World-wide, Apollo is used in hundreds of genome annotation projects around the world, ranging from the annotation of a single species to lineage-specific efforts supporting the annotation of dozens of genomes.
The reason for Apollo’s popularity is that it provides important modern annotation features such as drag-and-drop editing, a visual and revertible history, real-time collaboration akin to Google Docs, and the ability to host a wide range of genomes and researchers with fine-grained permissions. Once installed (Docker build (https://github.com/GMOD/docker-apollo) and pre-built Amazon EC2 instances are provided), it can also be integrated into workflows via a rich suite of web services and a wrapping Python library (https://pypi.org/project/apollo/).
Figure 1: Apollo UI overview. Genome evidence (lower left) can be dragged by the user up to the refinement area highlighted in yellow ito add it to the annotation. Sequences are shown on the right side of the display.
To meet the wider need of of our community, several new major enhancemnts are underway to further increase the utility of Apollo. First, is the ability to annotate variants, including the ability to visualize the effect of individual variants on genome features. Annotated variants can be exported as VCF files. Second, is the ability to import and export genomes and evidence tracks directly from the user-interface, simplifying administration and making it easy to import additional evidence. The third enhancement underway is the ability to add structured Gene Ontology (GO) functional annotations to genome features. More info on its usage and a demo site can be found at: http://genomearchitect.org/ (BSD-3 License)
1 - Examples of Galaxy workflows utilizing Apollo: https://bipaa.genouest.org/is/ http://gonramp.wustl.edu/ https://cpt.tamu.edu/
SU(4) composite fermions in graphene: New fractional quantum Hall states
Creators: name: Toke, Csaba
name: Jain, Jainendra K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Theoretical studies of the fractional quantum Hall effect (FQHE) in graphene have so far focused on the plausibility and stability of the previously known FQHE states for the interaction matrix elements appropriate for graphene. We consider FQHE for SU(4) symmetry, as appropriate for the situation when all four spin and valley Landau bands are degenerate, and predict new FQHE states that have no analog in GaAs. These result from an essential interplay between the two-fold spin and valley degeneracies at fractions of the form $ν=n/(2pn\pm 1)$, for $n\geq 3$. Conditions are outlined for the observation of these states and quantum phase transitions between them; the structure of these states and their excitations is also described.
description: accepted by PRB
title: NOAA Fisheries Ecosystem-Based Fisheries Management Road Map
Creators: name: Denit, Kelly
Publisher: name: NOAA Office of Sustainable Fisheries
publisherIdentifier: https://ror.org/04gsgxx86
publisherIdentifierScheme: ROR
Year: 2018

description: The NOAA Fisheries EBFM Road Map builds upon the Policy by providing a national implementation strategy for the Policy. This Road Map describes how to operationalize the Policy’s six Guiding Principles through a series of core components for each one.
Profinite homotopy theory
Creators: name: Quick, Gereon
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F35; 14H30; 55P15

description: We construct a model structure on simplicial profinite sets such that the homotopy groups carry a natural profinite structure. This yields a rigid profinite completion functor for spaces and pro-spaces. One motivation is the étale homotopy theory of schemes in which higher profinite étale homotopy groups fit well with the étale fundamental group which is always profinite. We show that the profinite étale topological realization functor is a good object in several respects.
description: 25 pages; correction of the proof of Theorem 2.12
Interacting Vector-like Dark Energy, the First and Second Cosmological Coincidence Problems
Creators: name: Wei, Hao
name: Cai, Rong-Gen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the puzzles of the dark energy problem is the (first) cosmological coincidence problem, namely, {\em why does our universe begin the accelerated expansion recently? why are we living in an epoch in which the dark energy density and the dust matter energy density are comparable?} On the other hand, cosmological observations hint that the equation-of-state parameter (EoS) of dark energy crossed the phantom divide $w_{de}=-1$ in the near past. Many dark energy models whose EoS can cross the phantom divide have been proposed. However, to our knowledge, these models with crossing the phantom divide only provide the possibility that $w_{de}$ can cross -1. They do not answer another question, namely, {\em why crossing the phantom divide occurs recently?} Since in many existing models whose EoS can cross the phantom divide, $w_{de}$ undulates around -1 randomly, {\em why are we living in an epoch $w_{de}
description: 15 pages, 8 tables, revtex4; v2: references added; v3: published version
Tuning the topology of $p$-wave superconductivity in an analytically solvable two-band model
Creators: name: Hu, Haiping
name: Zhao, Erhai
name: Satija, Indubala I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce and solve a two-band model of spinless fermions with $p_x$-wave pairing on a square lattice. The model reduces to the well-known extended Harper-Hofstadter model with half-flux quanta per plaquette and weakly coupled Kitaev chains in two respective limits. We show that its phase diagram contains a topologically nontrivial weak pairing phase as well as a trivial strong pairing phase as the ratio of the pairing amplitude and hopping is tuned. Introducing periodic driving to the model, we observe a cascade of Floquet phases with well defined quasienergy gaps and featuring chiral Majorana edge modes at the zero- or $π$-gap, or both. Dynamical topological invariants are obtained to characterize each phase and to explain the emergence of edge modes in the anomalous phase where all the quasienergy bands have zero Chern number. Analytical solution is achieved by exploiting a generalized mirror symmetry of the model, so that the effective Hamiltonian is decomposed into that of spin-$1/2$ in magnetic field, and the loop unitary operator becomes spin rotations. We further show the dynamical invariants manifest as the Hopf linking numbers.
description: 11 pages, 4 figures
Απόψεις νηπιαγωγών για την πρώιμη παρέμβαση και ενδείξεις μαθησιακών δυσκολιών στην προσχολική ηλικία:
Creators: name: Χατζηαθανασίου, Στυλιανή Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Μαθησιακές Δυσκολίες
Πρώιμη Παρέμβαση
Σχολική μάθηση
Learning disabilities
Early Intervention
School learning

description: Ο στόχος της συγκεκριμένης επιστημονικής έρευνας συνίσταται στη διερεύνηση των αποψέων των εκπαιδευτικών γενικής εκπαίδευσης του νηπιαγωγείου για τους μαθητές με πρώιμες ενδείξεις μαθησιακών δυσκολιών αλλά και την παρέμβασή τους σε αυτές.Στην έρευνα αυτή συμμετείχαν 61 εκπαιδευτικοί έχοντας προϋπηρεσία από 1 εως 35 χρόνια και υπηρετουν στη δημόσια και ιδιωτική εκπαίδευση της χώρας. Μεθοδολογικό εργαλείο της έρευνας αποτέλεσε ένα ερωτηματολόγιο αποτελούμενο από 43 ερωτήσεις ανοιχτού και κλειστού τύπου. Με τη συλλογή αυτών των δεδομένων προσπαθήσαμε να εξετάσουμε σύμφωνα πάντα με τις απόψεις των εκπαιδευτικών, ζητήματα που αφορούσαν την οριοθέτηση των όρων μαθησιακές δυσκολίες, πρώιμη παρέμβαση, χαμηλή νοημοσύνη, χαμηλή επίδοση και σχολική μάθηση καθώς και τους συσχετισμούς που προκύπτουν μεταξύ τους. Τέλος διερευνήσαμε τους τρόπους αντιμετώπισης και διαχείρησης που οι ίδιοι οι εκπαιδευτικοί προτείνουν τόσο μέσα στο σχολικό όσο και μέσα στο οικογενειακό περιβάλλον αλλά και πως οι παράγοντες αυτοί μπορούν να επηρεάσουν τα παιδιά και να συμβάλλουν στη διαμόρφωση της κοινωνικοσυναισθηματικής συμπεριφοράς των μαθητών με μαθησιακές δυσκολίες.
description: The scientific objective of this research is to investigate the views of early childhood education teachers about students with early signs of learning disabilities as well as their intervention on them. This survey involved 61 teachers with seniority from 1 to 35 years and serving in public and private education in the country. Methodological research tool was a questionnaire consisting of 43 open-and closed-ended questions. By collecting these data, we have tried to examine , always in accordance with the views of teachers, issues concerning the demarcation of the terms learning disabilities, early intervention, low intelligence, low achievement and school learning as well as the relationships that arise between them. Finally we have investigated ways to troubleshoot and manage these situations that the teachers themselves suggested, both within the school and within the family environment, and how these factors can affect children and contribute to the shaping of a social and emotional behaviour for students with learning disabilities.
Cross-modal Knowledge Reasoning for Knowledge-based Visual Question Answering
Creators: name: Yu, Jing
name: Zhu, Zihao
name: Wang, Yujing
name: Zhang, Weifeng
name: Hu, Yue
name: Tan, Jianlong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Knowledge-based Visual Question Answering (KVQA) requires external knowledge beyond the visible content to answer questions about an image. This ability is challenging but indispensable to achieve general VQA. One limitation of existing KVQA solutions is that they jointly embed all kinds of information without fine-grained selection, which introduces unexpected noises for reasoning the correct answer. How to capture the question-oriented and information-complementary evidence remains a key challenge to solve the problem. Inspired by the human cognition theory, in this paper, we depict an image by multiple knowledge graphs from the visual, semantic and factual views. Thereinto, the visual graph and semantic graph are regarded as image-conditioned instantiation of the factual graph. On top of these new representations, we re-formulate Knowledge-based Visual Question Answering as a recurrent reasoning process for obtaining complementary evidence from multimodal information. To this end, we decompose the model into a series of memory-based reasoning steps, each performed by a G raph-based R ead, U pdate, and C ontrol ( GRUC ) module that conducts parallel reasoning over both visual and semantic information. By stacking the modules multiple times, our model performs transitive reasoning and obtains question-oriented concept representations under the constrain of different modalities. Finally, we perform graph neural networks to infer the global-optimal answer by jointly considering all the concepts. We achieve a new state-of-the-art performance on three popular benchmark datasets, including FVQA, Visual7W-KB and OK-VQA, and demonstrate the effectiveness and interpretability of our model with extensive experiments.
description: Accepted at Pattern Recognition. arXiv admin note: substantial text overlap with arXiv:2006.09073
Vertex operator algebra analogue of embedding of $B_4$ into $F_4$
Creators: name: Perse, Ozren
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B69, 17B67

description: Let L_{B}(-5/2,0) (resp. L_{F}(-5/2,0)) be the simple vertex operator algebra associated to affine Lie algebra of type $B_{4}^{(1)}$ (resp. $F_{4}^{(1)}$) with the lowest admissible half-integer level -5/2. We show that L_{B}(-5/2,0) is a vertex subalgebra of L_{F}(-5/2,0) with the same conformal vector, and that L_{F}(-5/2,0) is isomorphic to the extension of L_{B}(-5/2,0) by its only irreducible module other than itself. We also study the representation theory of L_{F}(-5/2,0), and determine the decompositions of irreducible weak L_{F}(-5/2,0)-modules from the category $\mathcal{O}$ into direct sums of irreducible weak L_{B}(-5/2,0)-modules.
description: 31 pages, LaTeX; revised version
An accelerated hybrid data-driven/model-based approach for poroelasticity problems with multi-fidelity multi-physics data
Creators: name: Bahmani, Bahador
name: Sun, WaiChing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present a hybrid model/model-free data-driven approach to solve poroelasticity problems. Extending the data-driven modeling framework originated from Kirchdoerfer and Ortiz (2016), we introduce one model-free and two hybrid model-based/data-driven formulations capable of simulating the coupled diffusion-deformation of fluid-infiltrating porous media with different amounts of available data. To improve the efficiency of the model-free data search, we introduce a distance-minimized algorithm accelerated by a k-dimensional tree search. To handle the different fidelities of the solid elasticity and fluid hydraulic constitutive responses, we introduce a hybridized model in which either the solid and the fluid solver can switch from a model-based to a model-free approach depending on the availability and the properties of the data. Numerical experiments are designed to verify the implementation and compare the performance of the proposed model to other alternatives.
Διερεύνηση των μετρήσεων της διάχυτης υπεριώδους ηλιακής ακτινοβολίας στη Θεσσαλονίκη κατά την περίοδο 1993-2010.:
Creators: name: Γιαννουλοπούλου, Ζαχαρούλα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Υπεριώδης ακτινοβολία,
Διάχυτη ακτινοβολία
Διορθωτικό μοντέλο Drummond
Ultraviolet radiation,
Diffuse radiation
Shadow band correction model Drummond

description: Το παρόν σύγγραμμα αποτελεί τη διπλωματική μου εργασία, η οποία υλοποιήθηκε στα πλαίσια των σπουδών μου στο Π.Μ.Σ. Φυσικής Περιβάλλοντος του τμήματος Φυσικής, της σχολής θετικών επιστημών του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης. Σκοπός αυτής της διπλωματικής εργασίας είναι η διερεύνηση των μετρήσεων της διάχυτης υπεριώδους ακτινοβολίας στη Θεσσαλονίκη με γεωγραφικό πλάτος 40ο Ν και γεωγραφικό μήκος 220 Ε, κατά την περίοδο 1993-2010. Μέσω δύο ακτινομέτρωνερυθεματογόνου ακτινοβολίας , τα οποία βρίσκονται στην ταράτσα της σχολής Θετικών επιστημών ΑΠΘ, λαμβάνουμε δεδομένα της πυκνότητας ροής της διάχυτης και ολικής ηλιακής ακτινοβολίας ανά καθορισμένα χρονικά διαστήματα. Στην πορεία προσθέτοντας μια επιπλέον διόρθωση στα αρχικά δεδομένα της διάχυτης ακτινοβολίας, με τη βοήθεια ενός διορθωτικού μοντέλου (Drummond’sshadowbandcorrectionmodel), λαμβάνουμε νέες τιμές της ακτινοβολίας αυτής. Τελικά, έπειτα από επεξεργασία και ανάλυση των τιμών της διάχυτης και ολικής υπεριώδους ηλιακής ακτινοβολίας, σχολιάζoυμε τη συμπεριφορά της πρώτης μέσα στα έτη 1993-2010 και τους παράγοντες οι οποίοι την επηρεάζουν, όπως το οπτικό βάθος των αιρούμενων σωματιδίων, η συγκέντρωση της στήλης του όζοντος, τα νέφη και η ανακλαστικότητα του εδάφους ,με τη βοήθεια του λόγου της διάχυτης προς την ολική υπεριώδη ακτινοβολία.
description: This document is my post Graduate studies thesis, that carried out as a part of my studies at postgraduate course in Environmental Physics,in Aristotle University of Thessaloniki. The purpose of this thesis is the investigation on diffuse ultraviolet -B radiation measurements in Thessaloniki, latitude 400 N and longitude 2200E, during the period 1993-2010. Through two erythema broadband radiometer, located on the roof of the Faculty of Science, we received data on flux density of diffuse and global solar radiation at defined intervals. In the process, the original data of diffuse radiation received a correction, through a model of shadowband correction, and then we got new values of this radiation. Finally, after processing and analyzing the values of total and diffuse ultraviolet radiation, we study on the behavior of the diffuse radiation within the years 1993-2010 and also the factors that affect that radiation, such as the optical depth of the aerosols, the concentration of ozone column, the clouds and the albedo, by examinating the ratio diffuse and global.
Dust growth by accretion of molecules in supersonic interstellar turbulence
Creators: name: Li, Xiang-Yu
name: Mattsson, Lars
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We show that the growth rate of dust grains in cold molecular clouds is enhanced by the high degree of compressibility of a turbulent, dilute gas. By means of high resolution (10243) numerical simulations, we confirm the theory that the spatial mean growth rate is proportional to the gas-density variance. This also results in broadening of the grain-size distribution (GSD) due to turbulence-induced variation of the grain-growth rate. We show, for the first time in a detailed numerical simulation of hydrodynamic turbulence, that the GSD evolves towards a shape which is a reflection of the gas-density distribution, regardless of the initial distribution. That is, in case of isothermal, rotationally forced turbulence, the GSD tends to be a lognormal distribution. We also show that in hypersonic turbulence, decoupling of gas and dust becomes important and that this leads to an even further accelerated grain growth.
Superhumps in Binary Systems and Their Connection to Precessional Spiral Density Waves
Creators: name: Kaygorodov, P. V.
name: Bisikalo, D. V.
name: Kuznetsov, O. A.
name: Boyarchuk, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider a mechanism for the formation of superhumps in the TV Col system, based on the possible existence of a precessional spiral wave in the accretion disk of the system. This mechanism can act in binaries with arbitrary component-mass ratios, and our precessional spiral wave model can be applied to explain observed superhumps of all types.
description: LaTeX, 12 pages, 6 figures; figure 3 was improved
Southern Host Organizations: At the Forefront of Discussions on International Volunteerism
Creators: name: Fraser, Liana
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: International volunteers
Volunteerism
Host organizations
Southern hosts
Uganda
Global South

description: Volunteers, governments, agencies and organizations from the North have too often defined the benefits and limitations of international volunteer programs without incorporating the perspectives of the organizations they seek to help. In fact, scholars and practitioners have relied on Northern experiences to develop a critical analysis of this development practice. As the experiences of the South are often absent from the conversations about international volunteerism, the goal of this thesis is to leverage the voices and the stories of Southern hosts to further understand the impact of international volunteerism. The research draws on the experiences of host organizations in Uganda. The interviewed participants are Ugandans who have worked with international volunteers to address various development issues. A review of the existing literature on international volunteerism, combined with the field research, support the analysis of the benefits and limitations of international volunteerism from the perspectives of host organizations. It also enables an exploration of the agency of volunteerism and determines key principles to empower host organizations and their employees. Thus, the analysis establishes the following conclusions: international volunteers are valuable actors for Southern hosts; volunteer programs must consider the impact, the challenges and the recommendations identified by host organizations and their communities; international volunteers enable alternative voices to be heard; and volunteerism fosters cooperation and partnerships within the Global South.
Intermittent pulsations in an accretion-powered millisecond pulsar
Creators: name: Galloway, Duncan K.
name: Morgan, Edward H.
name: Krauss, Miriam I.
name: Kaaret, Philip
name: Chakrabarty, Deepto
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe observations of the seventh accretion-powered millisecond pulsar, HETE J1900.1-2455 made with the Rossi X-ray Timing Explorer during the year of activity that followed its discovery in 2005 June. We detected intermittent pulsations at a peak fractional amplitude of 3%, but only in the first two months of the outburst. On three occasions during this time we observed an abrupt increase in the pulse amplitude, approximately coincident with the time of a thermonuclear burst, followed by a steady decrease on a timescale of approx. 10 d. HETE J1900.1-2455 has shown the longest active period by far for any transient accretion-powered millisecond pulsar, comparable instead to the outburst cycles for other transient X-ray binaries. Since the last detection of pulsations, HETE J1900.1-2455 has been indistinguishable from a low-accretion rate, non-pulsing LMXB; we hypothesize that other, presently active LMXBs may have also been detectable initially as millisecond X-ray pulsars.
description: 5 pages, 3 figures, accepted by ApJL following minor revisions suggested by referee
Αντίληψη και Γλώσσα: Γνωσιακά Πειράματα των L. Wittgenstein και J. L. Borges:
Creators: name: Δονίκη, Μαρία Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Αντίληψη
Γλωσσικό παιχνίδι
Σημασιολόγηση
Perception
Language-game
Semanticity

description: Σκοπός της παρούσας εργασίας είναι η διερεύνηση της επίδρασης της αντίληψης στη γλωσσική πρακτική και η εξέταση των ορίων του γλωσσικού συστήματος στα πλαίσια της διυποκειμενικής σημασιολόγησης. Αρχικά εξετάζονται βασικοί όροι της θεωρίας του Wittgenstein (εξήγηση, γλωσσικό παιχνίδι, νόημα, σημασία, χρήση) στο επίπεδο της φαινομενικής διδασκαλίας των λέξεων και του φαινομενικού ορισμού. Στη συνέχεια ερευνάται η γλωσσική πρακτική στα πλαίσια της (δι)ανθρώπινης επικοινωνίας βάσει του συμβατικού, αλλά ταυτόχρονα ανοικτού συστήματος της γλώσσας υπό το πρίσμα των συγκεκριμένων συνθηκών, εντός των οποίων διενεργείται η πρακτική σημασιολόγησης καθώς και η ασυμβατότητα και μη λειτουργικότητα της ιδιωτικής γλώσσας. Έπειτα συζητούνται συγκεκριμένες διαστάσεις της γλωσσικής πρακτικής (η περιγραφή υπέρ της εξήγησης, η επέκταση του γλωσσικού παιχνιδιού, η φαινομενική απαίτηση ορισμών). Τέλος, η εξέταση του διηγήματος του Βorges Tlön, Uqbar, Orbis Tertius συνιστά ένα παράδειγμα της ευρυματικότητας και της νοηματικής λειτουργίας της γλώσσας στα πλαίσια της φιλοσοφικής αναμέτρησης μεταξύ ιδεαλισμού και νομιναλισμού το οποίο συνάδει με τους ερευνητικούς προσανατολισμούς της βιτγκενσταϊνικής θεωρίας.
description: The objective of the present thesis is the exploration of the effect of perception on the linguistic practice and the examination of the limits of the linguistic system within the verbal interaction and semanticity. Firstly, some basic concepts of Wittgenstein's theory are examined (explanation, language-game, meaning, significance, use,) on the level of the ostensive teaching of words and the ostensive definition. Then, linguistic practice is studied in the framework of intersubjective communication on account of the conventional, yet open linguistic system under the influence of the specific circumstances, within which the practice of attributing meaning occurs, and the incompatibitlity and non-functionality of the private language. Furthermore, particular aspects of the linguistic interaction are discussed (description over explanation, the expansion of the language-game and the ostensive demand for definitions). Finally, the study of Borges' short story Tlön, Uqbar, Orbis Tertius provides an example of resourcefulness and semantic functionality of language within the philosophical debate between idealism and nominalism which resembles some of the research aspects of the wittgensteinian theory.
Constraints on the rate of supernovae lasting for more than a year from Subaru/Hyper Suprime-Cam
Creators: name: Moriya, Takashi J.
name: Jiang, Ji-an
name: Yasuda, Naoki
name: Kokubo, Mitsuru
name: Kawana, Kojiro
name: Maeda, Keiichi
name: Pan, Yen-Chen
name: Quimby, Robert M.
name: Suzuki, Nao
name: Takahashi, Ichiro
name: Tanaka, Masaomi
name: Tominaga, Nozomu
name: Nomoto, Ken'ichi
name: Cooke, Jeff
name: Galbany, Lluis
name: Gonzalez-Gaitan, Santiago
name: Lee, Chien-Hsiu
name: Pignata, Giuliano
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Some supernovae such as pair-instability supernovae are predicted to have the duration of more than a year in the observer frame. To constrain the rates of supernovae lasting for more than a year, we conducted a long-term deep transient survey using Hyper Suprime-Cam (HSC) on the 8.2m Subaru telescope. HSC is a wide-field (a 1.75 deg2 field-of-view) camera and it can efficiently conduct transient surveys. We observed the same 1.75 deg2 field repeatedly using the g, r, i, and z band filters with the typical depth of 26 mag for 4 seasons (from late 2016 to early 2020). Using these data, we searched for transients lasting for more than a year. Two supernovae were detected in 2 continuous seasons, one supernova was detected in 3 continuous seasons, but no transients lasted for all 4 seasons searched. The discovery rate of supernovae lasting for more than a year with the typical limiting magnitudes of 26 mag is constrained to be 1.4^{+1.3}_{-0.7}(stat.)^{+0.2}_{-0.3}(sys.) events deg-2 yr-1. All the long-lasting supernovae we found are likely Type IIn supernovae and our results indicate that about 40% of Type IIn supernovae have long-lasting light curves. No plausible pair-instability supernova candidates lasting for more than a year are discovered. By comparing the survey results and survey simulations, we constrain the luminous pair-instability supernova rate up to z ~ 3 should be of the order of 100 Gpc-3 yr-1 at most, which is 0.01 - 0.1 per cent of the core-collapse supernova rate.
description: 18 pages, 9 figures, 6 tables, accepted by The Astrophysical Journal
The lived experiences of mental health consumers as board and committee members in the mental health field
Creators: name: MacNamara, Deborah Elaine
Publisher: name: University of British Columbia
Year: 2009

description: The current trend in the mental health field is to involve consumers, that is, people with a mental illness who have utilized mental health services, in the development, planning, implementation, and evaluation of mental health services. This type of participation is encouraged through consumer involvement on boards and committees within the mental health field. Given the lack of awareness and understanding in this area, the purpose of this study was to explore and describe the lived experiences of consumers as board and/or committee members within the mental health field. The study employed a phenomenological paradigm to explore and describe consumer involvement. The data was comprised of 18 in-depth interviews with 9 consumers who have been involved with boards Or committees within the mental health field for over one year. The data analysis of the verbatim transcripts occurred simultaneously with the data collection. The data analysis also continued into the formal analytic phase involving the extraction of meaning units and themes of experience. In the end seven major themes and four subthemes emerged and offered a portrayal of consumer involvement on boards and committees. The seven themes and four subthemes are: first, the experience of making a contribution or helping others through boards and committees; second, the experience of being responsible or accountable, subtheme, of the difficulty in being responsible, third; the experience of a power differential or inequality between consumers and non-consumers on boards and committees, subtheme of the experience of being assertive for female participants; fourth, the experience of positive outcomes such as friendship, empowerment, and increased self esteem; fifth, negative experiences as part of the process of boards and committees such as disempowerment and frustration; sixth, the experience of feeling separate or different, subtheme of the experience of feeling uncomfortable when first joining boards and committees and then gradually settling in; seventh, the experience of stress and exhaustion, subtheme of the participants means of coping with the experience of stress, pressure, and frustration. The participants also provided insight into the shortage of consumers on boards and committee and suggestions for facilitating consumer involvement. Overall, the explicated themes and subthemes illustrate the experiences of mental health consumers on boards and committees. Implications for consumer involvement in terms of the facilitation, evaluation, and research are offered. General implications for the field of mental is to increase awareness and understanding of consumers' experiences and to facilitate participation on boards and committees.
Εκλεκτική αναγωγή νιτροενώσεων σε αμίνες και υδροξυλαμίνες καταλυόμενη από νανοσωματίδια Αργύρου παρουσία NaBH4 και NH3BH3:
Creators: name: Ανδρέου, Δημήτριος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: καταλυτική αναγωγή
νιτροενώσεις
αμίνες – υδροξυλαμίνες
νανοσωματίδια Αργύρου
catalytic reduction
nitro compounds
amines - hydroxylamines
silver nanoparticles

description: Στην παρούσα ερευνητική εργασία μελετήθηκε η εκλεκτική αναγωγή νιτροενώσεων προς τις αντίστοιχες αμίνες και υδροξυλαμίνες με τη χρήση NaBH4 και NH3BH3 ως αναγωγικά μέσα αντίστοιχα, καταλυόμενη από νανοσωματίδια αργύρου προσροφημένα σε TiO2. Η καταλυτική δράση των νέων αυτών υλικών φαίνεται να σχετίζεται άμεσα με το κατά βάρος ποσοστό των νανοσωματιδίων του Ag που βρίσκονται προσροφημένα στην ανόργανη επιφάνεια καθώς και από το μέγεθος αυτών. Οι νιτροενώσεις ανάγονται προς τις αντίστοιχες αμίνες σε εξαιρετικές αποδόσεις παρουσία NaBH4. Οι νιτροενώσεις ανάγονται προς τις αντίστοιχες υδροξυλαμίνες σε πολύ καλές αποδόσεις και μικρούς χρόνους παρουσία NH3BH3.Ο καταλύτης Ag/TiO2 (4%) είναι ένας αποτελεσματικός καταλύτης για την αναγωγή νιτροενώσεων συγκριτικά με τα άλατα αυτού (AgNO3 και AgOTf) αφού μπορεί να επαναχρησιμοποιηθεί τουλάχιστον τρείς φορές χωρίς να χάσει σημαντικά την δραστικότητα του.
description: In this study, we demonstrate a novel mesoporous Ag loaded TiO2 nanoparticle assemblies as high effective catalyst for the selective reduction of nitroaromatic into the corresponding aryl amines and hydroxylamines. Ag/TiO2 display excellent performance for the selective reduction of nitro compound using sodium borohydride and ammonia-borane as reducing agent at ambient condition. We show that both chemoselectivity and hydrogenation activity of the Ag/TiO2 catalyst is highly related to the % wt Ag loading and particle size. As a result the Ag/TiO2 (4%) has found to be a prominent catalyst for hydrogenation reactions providing exceptional high selectivity and conversion yields to the corresponding amines and hydroxylamines. The stability of the Ag/TiO2 assemblies was examined in repeated catalytic experiments, where the catalyst can be used at least three times without a significant loss of its catalytic activity and selectivity. The implication of these results is that mesoporous ensembles of Ag/TiO2 nanoparticles should be considered for the synthesis of fine amine and hydroxylamine chemicals.
title: Carbon–biodiversity relationships in a highly diverse subtropical forest
Creators: name: Schuldt, Andreas
name: Liu, Xiaojuan
name: Buscot, François
name: Bruelheide, Helge
name: Erfmeier, Alexandra
name: He, Jin‐Sheng
name: Klein, Alexandra‐Maria
name: Ma, Keping
name: Scherer‐Lorenzen, Michael
name: Schmid, Bernhard
name: Scholten, Thomas
name: Tang, Zhiyao
name: Trogisch, Stefan
name: Wirth, Christian
name: Wubet, Tesfaye
name: Staab, Michael
Publisher: name: John Wiley & Sons
Year: 2024

description: Carbon‐focused climate mitigation strategies are becoming increasingly important in forests. However, with ongoing biodiversity declines we require better knowledge of how much such strategies account for biodiversity. We particularly lack information across multiple trophic levels and on established forests, where the interplay between carbon stocks, stand age, and tree diversity might influence carbon–biodiversity relationships. Using a large dataset (>4600 heterotrophic species of 23 taxonomic groups) from secondary, subtropical forests, we tested how multitrophic diversity and diversity within trophic groups relate to aboveground, belowground, and total carbon stocks at different levels of tree species richness and stand age. Our study revealed that aboveground carbon, the key component of climate‐based management, was largely unrelated to multitrophic diversity. By contrast, total carbon stocks — that is, including belowground carbon — emerged as a significant predictor of multitrophic diversity. Relationships were nonlinear and strongest for lower trophic levels, but nonsignificant for higher trophic level diversity. Tree species richness and stand age moderated these relationships, suggesting long‐term regeneration of forests may be particularly effective in reconciling carbon and biodiversity targets. Our findings highlight that biodiversity benefits of climate‐oriented management need to be evaluated carefully, and only maximizing aboveground carbon may fail to account for biodiversity conservation requirements.
Lepton flavour violating processes at the International Linear Collider
Creators: name: Ferreira, P. M.
name: Guedes, R. B.
name: Santos, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effects of dimension six effective operators on the flavour violating production and decay of leptons at the International Linear Collider. Analytic expressions for the cross sections, decay widths and asymmetries of all flavour changing processes will be presented, as well as an analysis of the feasibility of their observation at the ILC.
description: 19 pages, 8 figures
Axion Dark Matter eXperiment: Detailed Design and Operations
Creators: name: Khatiwada, R.
name: Bowring, D.
name: Chou, A. S.
name: Sonnenschein, A.
name: Wester, W.
name: Mitchell, D. V.
name: Braine, T.
name: Bartram, C.
name: Cervantes, R.
name: Crisosto, N.
name: Du, N.
name: Kimes, S.
name: Rosenberg, L. J
name: Rybka, G.
name: Yang, J.
name: Will, D.
name: Carosi, G.
name: Woollett, N.
name: Durham, S.
name: Duffy, L. D.
name: Bradley, R.
name: Boutan, C.
name: Jones, M.
name: LaRoque, B. H.
name: Oblath, N. S.
name: Taubman, M. S.
name: Tedeschi, J.
name: Clarke, John
name: Dove, A.
name: Eddins, A.
name: Hashim, A.
name: O'Kelley, S. R.
name: Nawaz, S.
name: Siddiqi, I.
name: Stevenson, N.
name: Agrawal, A.
name: Dixit, A. V.
name: Gleason, J. R.
name: Jois, S.
name: Sikivie, P.
name: Sullivan, N. S.
name: Tanner, D. B.
name: Solomon, J. A.
name: Lentz, E.
name: Daw, E. J.
name: Perry, M. G.
name: Buckley, J. H.
name: Harrington, P. M.
name: Henriksen, E. A.
name: Murch, K. W.
name: Hilton, G. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Axion Dark Matter eXperiment (ADMX) ultra low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the $2.66$ to $3.1$ $μ$eV mass range with Dine-Fischler-Srednicki-Zhitnisky (DFSZ) sensitivity Ref. [1,2]. Therefore, it is the most sensitive axion search experiment to date in this mass range. We discuss the technological advances made in the last several years to achieve this sensitivity, which includes the implementation of components, such as state-of-the-art quantum limited amplifiers and a dilution refrigerator. Furthermore, we demonstrate the use of a frequency tunable Microstrip Superconducting Quantum Interference Device (SQUID) Amplifier (MSA), in Run 1A, and a Josephson Parametric Amplifier (JPA), in Run 1B, along with novel analysis tools that characterize the system noise temperature.
description: 23 pages, 28 figures
Adam revisited: a weighted past gradients perspective
Creators: name: Zhong, Hui
name: Chen, Zaiyi
name: Qin, Chuan
name: Huang, Zai
name: Zheng, Vincent W.
name: Xu, Tong
name: Chen, Enhong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Adaptive learning rate methods have been successfully applied in many fields, especially in training deep neural networks. Recent results have shown that adaptive methods with exponential increasing weights on squared past gradients (i.e., ADAM, RMSPROP) may fail to converge to the optimal solution. Though many algorithms, such as AMSGRAD and ADAMNC, have been proposed to fix the non-convergence issues, achieving a data-dependent regret bound similar to or better than ADAGRAD is still a challenge to these methods. In this paper, we propose a novel adaptive method weighted adaptive algorithm (WADA) to tackle the non-convergence issues. Unlike AMSGRAD and ADAMNC, we consider using a milder growing weighting strategy on squared past gradient, in which weights grow linearly. Based on this idea, we propose weighted adaptive gradient method framework (WAGMF) and implement WADA algorithm on this framework. Moreover, we prove that WADA can achieve a weighted data-dependent regret bound, which could be better than the original regret bound of ADAGRAD when the gradients decrease rapidly. This bound may partially explain the good performance of ADAM in practice. Finally, extensive experiments demonstrate the effectiveness of WADA and its variants in comparison with several variants of ADAM on training convex problems and deep neural networks.
description: Zhong, Hui, et al. "Adam revisited: a weighted past gradients perspective." Frontiers of Computer Science 14.5 (2020): 1-16
Sharp existence and classification results for nonlinear elliptic equations in $\mathbb R^N\setminus\{0\}$ with Hardy potential
Creators: name: Cîrstea, Florica C.
name: Fărcăşeanu, Maria
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J60 (Primary) 35B40, 35J25 (Secondary)

description: For $N\geq 3$, by the seminal paper of Brezis and Véron (Arch. Rational Mech. Anal. 75(1):1--6, 1980/81), no positive solutions of $-Δu+u^q=0$ in $\mathbb R^N\setminus \{0\}$ exist if $q\geq N/(N-2)$; for $11$ and $θ\in \mathbb R$, we prove that the nonlinear elliptic problem (*) $-Δu-λ\,|x|^{-2}\,u+|x|^θu^q=0$ in $\mathbb R^N\setminus \{0\}$ with $u>0$ has a $C^1(\mathbb R^N\setminus \{0\})$ solution if and only if $λ>λ^*$, where $λ^*=Θ(N-2-Θ) $ with $Θ=(θ+2)/(q-1)$. We show that (a) if $λ>(N-2)^2/4$, then $U_0(x)=(λ-λ^*)^{1/(q-1)}|x|^{-Θ}$ is the only solution of (*) and (b) if $λ^*\max\{q_{N,θ},1\}$, where $q_{N,θ}=(N+2θ+2)/(N-2)$. In addition, for $θ\leq -2$ we settle the structure of the set of all positive solutions of (*) in $Ω\setminus \{0\}$, subject to $u|_{\partialΩ}=0$, where $Ω$ is a smooth bounded domain containing zero, complementing the works of C\^ırstea (Mem. Amer. Math. Soc. 227, 2014) and Wei--Du (J. Differential Equations 262(7):3864--3886, 2017).
description: 32 pages
Lowering Helstrom Bound with non-standard coherent states
Creators: name: Curado, Evaldo M. F.
name: Faci, Sofiane
name: Gazeau, Jean-Pierre
name: Noguera, Diego
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In quantum information processing, {using a receiver device to differentiate between two nonorthogonal states leads to a quantum error probability. The minimum possible error is} known as the Helstrom bound. In this work we study and compare quantum limits for states which generalize the Glauber-Sudarshan coherent states, like non-linear, Perelomov, Barut-Girardello, and (modified) Susskind-Glogower coherent states. For some of these, we show that the Helstrom bound can be significantly lowered and even vanish in specific regimes.
description: 31 pages, 25 figures
The Spokesman, 02-13-1991 - Vol. 40, No. 6
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1991
Subjects: Memorials and Obituaries
History Months Celebrations - various
News - International
Musicians and Entertainers
Student extracurricular activities and cultural events
Sports - Morgan State
Arts, Dance, Fashion, Theatre, Visual Displays

description: Front Page: The issue mourns the loss of Michael Harper, a respected member of the Morgan State University community, who died in an alcohol-related car accident on December 20, 1990. The paper highlights his impact as a peer counselor and role model, urging students to take the dangers of drinking and driving seriously. Persian Gulf War: Army Staff Sgt. Garland V. Hailey, a former Morgan State University student, was killed in a non-combat helicopter crash in Saudi Arabia. He was a medical evacuation specialist and was helping people when he died. The article discusses the perspectives of Morgan students on the Persian Gulf War, with opinions ranging from opposition to reluctant support due to the need to support the troops. Promotions Plus: Promotions Plus, a group of five young African-American men from Morgan State University, has successfully brought jazz artists Ahmad Jamal and Freddie Hubbard to the university. The organization emphasizes the importance of economic freedom and cohesiveness among African-American communities. Sports: Morgan State University's Cross Country Team was crowned MEAC champions, a significant achievement for the university. The men's and women's teams performed admirably, with individual runners receiving accolades for their performances. Freddie Hubbard Concert: Renowned trumpet player Freddie Hubbard performed at Morgan State University's Murphy Auditorium on February 10, 1991. He is celebrated for his contributions to jazz and his numerous recordings with famous artists. Black History Month: Various events and activities were scheduled in honor of Black History Month, including lectures, movie screenings, and cultural celebrations. A new book of Malcolm X's speeches, "Malcolm X Talks to Young People," was highlighted as a significant publication for the month. Additional Articles: An editorial piece discusses the importance of having faith and perseverance in difficult times, encouraging students to seek help and support each other. Reviews and commentaries on movies and entertainment, including a critique of "The Godfather Part III."