cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multiperiodic Galactic field RR Lyrae stars in the ASAS catalog
Creators: name: Szczygiel, D. M.
name: Fabrycky, D. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The All Sky Automated Survey (ASAS) monitors bright stars (8 mag < V < 14 mag) south of declination +28 deg. The ASAS Catalogue of Variable Stars (ACVS) presently contains 50,099 objects; among them are 2212 objects classified as RR Lyrae pulsating variables. We use ASAS photometric V band data to search for multiperiodicity in those stars. We find that 73 of 1435 RRab stars and 49 of 756 RRc stars exhibit the Blazhko effect. We observe a deficiency of RRab Blazhko variables with main pulsation periods greater than 0.65 days. The Blazhko periods of RRc stars exhibit a strongly bimodal distribution. During our study we discovered the Blazhko effect with multiple periods in object ASAS 050747-3351.9 = SU Col. Blazhko periods of 89.3 d and 65.8 d and a candidate of 29.5 d were identified with periodogram peaks near the first three harmonics of the main pulsation. These observations may inspire new models of the Blazhko effect, which has eluded a consistent theory since its discovery about one hundred years ago. Long term lightcurve changes were found in 29 stars. We also found 19 Galactic double mode pulsators (RRd), of which 4 are new discoveries, raising the number of ASAS discoveries of such objects to 16, out of 27 known in the field of our Galaxy.
description: 12 pages, 10 figures, published in MNRAS
New annulation methods employing bifunctional conjunctive reagents : total syntheses of (-)-homalomenols A and B
Creators: name: Oballa, Renata M.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is divided into two parts. Part 1 describes the use of the bifunctional conjunctive reagent 13 in novel annulation sequences. As previously developed in our laboratories, compound 13 was converted into the key organocopper(I) reagent 15 which can be used as the synthetic equivalent of a 1-butene a²,d⁴-synthon 14 or a 1-butene d²,d⁴- synthon 21. The preparation of structurally complex tricycic ring systems of general structures 32 and 32a was accomplished via an annulation sequence involving: (a) the stereoselective conjugate addition of the organocopper(I) reagent 15 to bicyclic enones of general structure 19 to afford the vinylgermane intermediates 19a, (b) conversion of the vinylgermane adducts 19a into the corresponding keto vinyl iodides 19b, and (c) intramolecular Pd(0)-catalyzed coupling reactions of the vinyl iodides 19b to generate the unique tricydic keto alkenes 32 and 32a. The use of the organocopper(I) reagent 15 as the synthetic equivalent of the d²,d⁴- synthon 21 was employed in an annulation sequence designed to generate tricyclic compounds bearing an allylic, angular hydroxyl group (see general structure 33). The key step in this sequence involved the cyclization of the keto vinyl iodides 19b via a lithiumiodine exchange reaction and subsequent closure of the resultant vinyllithium species onto the carbonyl carbon. Part 2 of this thesis describes the first total syntheses of the sesquiterpenes (-)- homalomenol A (168b) and B (169b). The preparation of these products involved the conversion of the enantiomerically homogeneous allylic acetate 181b to the bicyclic enone 17Th via a known five-membered ring annulation sequence. The key steps were the stereoselective conjugate additions of the organocopper(I) reagents 178 and 179 to the bicyclic enone 177b. The resultant bicyclo[4.3.0]nonan-2-ones 175b and 176b were then readily converted to the products 168b and 169b, respectively, via two synthetic steps. [chemical compound diagrams]
Additional file 2 of Characterization of symptoms and determinants of disease burden in dementia with Lewy bodies: DEvELOP design and baseline results
Creators: name: M. Van De Beek
name: I. Van Steenoven
name: J. J. Van Der Zande
name: I. Porcelijn
name: F. Barkhof
name: C. J. Stam
name: P. G. H. M. Raijmakers
name: P. Scheltens
name: C. E. Teunissen
name: W. M. Van Der Flier
name: A. W. Lemstra
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary Table 1. Clinical questionnaires & tests.
Κτήση κυριότητας με επιδίκαση. Εννοιολογικός προσδιορισμός και περιπτωσιολογία
Creators: name: Σολιδάκη, Μαρία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Επιδίκαση
Κυριότητα
Κτήση
Adjudication
Ownership
Acquisition

description: Αντικείμενο της διατριβής ήταν ένας από τους τρόπους κτήσης κυριότητας και συγκεκριμένα η κτήση με επιδίκαση. Στόχος ήταν η σφαιρική διερεύνηση της έννοιας της επιδίκασης και η εξέταση των πιο αντιπροσωπευτικών περιπτώσεων κτήσης κυριότητας με επιδίκαση, μέσω της καταγραφής των απόψεων της θεωρίας και της αποτύπωσης των κυριότερων θέσεων της νομολογίας. Καταρχάς προσδιορίστηκε η έννοια της επιδίκασης και επιχειρήθηκε η διάκρισή της από συγγενείς τρόπους κτήσης κυριότητας, όπως η προσκύρωση και η αναγκαστική απαλλοτρίωση. Στη συνέχεια, εξετάστηκαν οι πιο χαρακτηριστικές περιπτώσεις επιδίκασης κυριότητας από το δικαστήριο, όπως είναι η ενοικοδόμηση εν μέρει σε γειτονικό ακίνητο και ο κανονισμός αβέβαιων ορίων στο Γειτονικό Δίκαιο, η παραγωγή νέου κινητού πράγματος από κακόπιστο παραγωγό, η αυτούσια δικαστική διανομή και η δήμευση.
description: Subject of the present thesis was one way of acquiring ownership and specifically the acquisition by adjudication. The aim was the comprehensive review of the concept of adjudication and the survey of the most representative cases of acquiring ownership by adjudication, through the views of theory and the plotting of the main positions of jurisprudence. First, the concept of adjudication was defined and was attempted to distinguish it from related ways of acquiring ownership, such as concession and expropriation. Then, the most significant cases of ownership adjudication by the court were examined, such as buildings erected partially on a neighbouring immovable and demarcation of confused borders in Neighbouring Law, the production of a new movable thing by a producer acting in bad faith, the unchanged judicial distribution and the confiscation.
Theoretical Study on Coexistence of Ferromagnetism and Superconductivity
Creators: name: Kaneyasu, Hirono
name: Yamada, Kosaku
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: On the basis of a two-dimensional t-t' Hubbard model in ferromagnetic and paramagnetic states, the triplet superconducting mechanism is investigated by the third-order perturbation theory with respect to the on-site Coulomb interaction U. In general, the superconducting state is more stable in the paramagnetic state than in the ferromagnetic state. As a special case, the dominant ferromagnetic superconductivity is obtained by the electron-electron correlation between the electronlike majority and holelike minority bands. Furthermore, it is pointed out that in some cases the two bands play an essential role for the coexistence of superconductivity and ferromagnetism.
description: 5 pages, 10 figures
Uniform Boundedness Principle and Hahn-Banach Theorem for b-linear functional related to linear 2-normed space
Creators: name: Ghosh, Prasenjit
name: Roy, Sanjay
name: Samanta, T. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46A22, 46B07, 46B25

description: In this paper, we will see that the Cartesian product of two 2-Banach spaces is also 2-Banach space and discuss some properties of closed linear operator in linear 2-normed space. We also describe the concept of different types of continuity of b-linear functional and derive the Uniform Boundedness Principle and Hahn-Banach extension theorem for b-linear functionals in the case of linear 2-normed spaces. We also introduce the notion of weak*convergence for the sequence of bounded b-linear functionals relative to linear 2-normed space.
description: 17 pages
Modulation Doping near Mott-Insulator Heterojunctions
Creators: name: Lee, Wei-Cheng
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We argue that interesting strongly correlated two-dimensional electron systems can be created by modulation doping near a heterojunction between Mott insulators. Because the dopant atoms are remote from the carrier system, the electronic system will be weakly disordered. We argue that the competition between different ordered states can be engineered by choosing appropriate values for the dopant density and the setback distance of the doping layer. In particular larger setback distances favor two-dimensional antiferromagnetism over ferromagnetism. We estimate some key properties of modulation-doped Mott insulator heterojunctions by combining insights from Hartree-Fock-Theory and Dynamical-Mean-Field-Theory descriptions and discuss potentially attractive material combinations.
description: 9 pages, 9 figures, submitted
Innovative approaches to business management in conditions of economic instability
Creators: name: Britchenko, Igor
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460901
subject: Business process management
classificationCode: 410404
subject: Environmental management
classificationCode: 350301
subject: Business analytics
classificationCode: 350716
subject: Small business organisation and management

description: The article is devoted to studying innovative approaches to enterprise management in conditions of economic instability. The main goal of the research was to identify and analyse the impact of innovative strategies and management methods on the development of enterprises’ innovative potential during economic crises. To achieve this goal, special and general academic research methods were used, in particular ‘synthesis’ and ‘generalisation’, which were used to evaluate the effectiveness of the implementation of innovative approaches in the activities of enterprises in the conditions of unpredictable changes in the business environment. As a result of the study, it was found that, in conditions of economic instability, innovations in enterprise management should focus on strengthening innovative potential and production and on the technical improvement of business processes for which the formation of innovative strategies is necessary. It has been found that enterprises that actively implement innovative management methods in their activities have more chances to ensure their sustainability in challenging business conditions and, with this transformation of management practices, create conditions for dynamic growth and development of their innovative potential. As a result of the study, it has been established that using innovative approaches contributes to improving the efficiency of enterprise resource management, improves interaction with counterparties, and stimulates the further implementation of innovative solutions in production. Based on the research, the understanding and principles of forming innovative management strategies for enterprises in conditions of economic instability have been improved. In addition, a set of recommendations has been formed for enterprises and organisations regarding strengthening the management system based on innovative solutions to ensure the stability and dynamic development of business processes in crisis trends.
Βασανιστήρια και άλλες προσβολές της ανθρώπινης αξιοπρέπειας (137Α-137Δ ΠΚ)
Creators: name: Αποστολάκης, Κωνσταντίνος Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Βασανιστήρια
Ανθρώπινη αξιοπρέπεια
137Α ΠΚ
Torture
Human dignity
Article 137Α of the greek Penal Code

description: Σκοπός της διπλωματικής αυτής εργασίας ήταν η μελέτη των ρυθμίσεων που περιλαμβάνονται στα άρθρα 137Α-137Δ του ελληνικού Ποινικού Κώδικα σχετικά με τα εγκλήματα των βασανιστηρίων και των άλλων προσβολών της ανθρώπινης αξιοπρέπειας. Για την ακρίβεια, αναλύσαμε την έννοια των βασανιστηρίων και των άλλων προσβολών της ανθρώπινης αξιοπρέπειας, όπως προσδιορίζονται από τις ανωτέρω διατάξεις. Η ανάλυση αυτή περιέλαβε τόσο την αντικειμενική υπόσταση των εγκλημάτων αυτών όσο και την υποκειμενική. Σε σχέση με το προστατευόμενο από τις ανωτέρω διατάξεις έννομο αγαθό, καταλήξαμε πως αυτό είναι κυρίως η προσωπική ελευθερία. Ακόμη, εξετάσαμε τις ιδιαιτερότητες των ανωτέρω εγκλημάτων όσον αφορά τη λειτουργία των γενικών λόγων άρσης του αδίκου. Επιπρόσθετα, μας απασχόλησε η λειτουργία των λόγων άρσης του καταλογισμού σε σχέση με τα εγκλήματα αυτά.
description: The aim of the present thesis was the study of the provisions of the articles 137Α-137Δ of the greek Penal Code, concerning the crimes of torture and other violations of human dignity. In fact, we analyzed the concept of torture and other violations of human dignity as determined by the above provisions. This analysis included both the material as much as the mental elements of those crimes. In relation to the legal interest protected by those provisions, we adopted the view that it is primarily the personal freedom. We also examined the specificities of these crimes in the light of the general reasons of justification. Additionally, we dealt with the functioning of the excuses in relation to these crimes
TeV source HESS J1804-216 in X-rays and other wavelengths
Creators: name: Kargaltsev, O.
name: Pavlov, G. G.
name: Garmire, G. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The field of the extended TeV source HESS J1804-216 was serendipitously observed with the Chandra ACIS detector. The data reveal several X-ray sources within the bright part of HESS J1804-216. The brightest of these objects, CXOU J180432.4-214009, which has been also detected with Swift and Suzaku, is consistent with being a point-like source, with the 0.3-7 keV flux of (1.7\pm0.2)\times10^{-13} ergs s^{-1} cm^{-2}. Its hard and strongly absorbed spectrum can be fitted by the absorbed power-law model with the best-fit photon index of 0.45 and hydrogen column density of 4\times10^{22} cm^{-2}, both with large uncertainties due to the strong correlation between these parameters. A search for pulsations resulted in a 106 s period candidate, which however has a low significance of 97.9%. We found no infrared-optical counterparts for this source. The second brightest source, CXOU J180441.9-214224, which has been detected with Suzaku, is either extended or multiple, with the flux of about 10^{-13} ergs cm^{-2} s^{-1}. We found a nearby M dwarf within the X-ray source extension, which could contribute a fraction of the observed X-ray flux. The remaining sources are very faint (<3\times 10^{-14} ergs cm^{-2} s^{-1}), and at least some of them are likely associated with nearby stars. Although one or both of the two brighter X-ray sources could be faint accreting binaries or remote pulsars with pulsar wind nebulae (hence possible TeV sources), their relation to HESS J1804-216 remains elusive. The possibility that HESS J1804-216 is powered by the relativistic wind from the young pulsar B1800-21, located at a distance of about 10 pc from the TeV source, still remains a more plausible option.
description: 11 pages, 9 figures and 2 tables; submitted to ApJ. Version with the high-resolution figures is available at http://www.astro.psu.edu/users/green/B1800/HESSJ1804_ApJ.pdf
Britchenko, I. (2023). Innovative approaches to business management in conditions of economic instability. Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego [Studies of the Industrial Geography Commission of the Polish Geographical Society], 37(4), 41–49.
Creators: name: Britchenko, Igor
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460901
subject: Business process management
classificationCode: 410404
subject: Environmental management
classificationCode: 350301
subject: Business analytics
classificationCode: 350716
subject: Small business organisation and management

description: The article is devoted to studying innovative approaches to enterprise management in conditions of economic instability. The main goal of the research was to identify and analyse the impact of innovative strategies and management methods on the development of enterprises’ innovative potential during economic crises. To achieve this goal, special and general academic research methods were used, in particular ‘synthesis’ and ‘generalisation’, which were used to evaluate the effectiveness of the implementation of innovative approaches in the activities of enterprises in the conditions of unpredictable changes in the business environment. As a result of the study, it was found that, in conditions of economic instability, innovations in enterprise management should focus on strengthening innovative potential and production and on the technical improvement of business processes for which the formation of innovative strategies is necessary. It has been found that enterprises that actively implement innovative management methods in their activities have more chances to ensure their sustainability in challenging business conditions and, with this transformation of management practices, create conditions for dynamic growth and development of their innovative potential. As a result of the study, it has been established that using innovative approaches contributes to improving the efficiency of enterprise resource management, improves interaction with counterparties, and stimulates the further implementation of innovative solutions in production. Based on the research, the understanding and principles of forming innovative management strategies for enterprises in conditions of economic instability have been improved. In addition, a set of recommendations has been formed for enterprises and organisations regarding strengthening the management system based on innovative solutions to ensure the stability and dynamic development of business processes in crisis trends.
Atomic Zitterbewegung
Creators: name: Merkl, M.
name: Zimmer, F. E.
name: Juzeliunas, G.
name: Öhberg, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Ultra-cold atoms which are subject to ultra-relativistic dynamics are investigated. By using optically induced gauge potentials we show that the dynamics of the atoms is governed by a Dirac type equation. To illustrate this we study the trembling motion of the centre of mass for an effective two level system, historically called Zitterbewegung. Its origin is described in detail, where in particular the role of the finite width of the atomic wave packets is seen to induce a damping of both the centre of mass dynamics and the dynamics of the populations of the two levels.
description: 6 pages, 4 figures
Magnon hybridization in ferrimagnetic heterostructures
Creators: name: Li, Song
name: Shen, Ka
name: Xia, Ke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study magnon hybridization in a ferrimagnetic heterostructure consisting of ultrathin gadolinium iron garnet and yttrium iron garnet layers and show the localized and extended spatial profiles of the magnon modes with different polarizations. These modes are expected to have distinct thermal excitation properties in the presence of a temperature gradient across the heterostructure. From a quantitative analysis of their consequences on longitudinal spin Seebeck effect, we predict an observable shift of the sign-changing temperature with respect to the one previously observed in gadolinium iron garnet. Moreover, the sign-changing point of spin Seebeck signal is found to be tunable by YIG thickness. Our results suggest the necessity of taking into account the temperature difference between the magnon modes in ferrimagnetic heterostructures.
description: 9 pages, 5 figures
Οι επιμορφωτικές ανάγκες των Ελλήνων εκπαιδευτικών που υπηρετούν στα παροικιακά σχολεία της Μεγάλης Βρετανίας
Creators: name: Αναγνώστου, Βασίλειος
name: Αβδελλή, Θεολογία
name: Κουτρομάνος, Γεώργιος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The aim of this research was to investigate Greek teachers' opinion about the training needs they have in order to teach effectively in the Greek community schools at Great Britain. A questionnaire was the tool that helped to collect the necessary data from 42 teachers at the end of the academic year 2002-2003. The results of the research showed that the majority of the sample did not believe that they gained important benefits form their previous training. For the future these teachers would like to be trained on issues that are relevant to the parent - school collaboration in favor of the teaching process, to the use of ICT in teaching, to student' assessment and to elements of English educational system that influenced the Greek community educational system. Furthermore, the majority of the teachers declared that in future they would prefer to be trained with the methods of "peer group", "model teaching" and "long distance training" while, they are less favored to the lecture method. Finally, among the factors that would encourage them to participate in training courses, in the future, are the existence of a web site with training resources, the provision of sabbatical leave and grand and the support of their head teacher.
description: Παιδαγωγική Επιθεώρηση, Vol. 39 (2005)
L'università italiana in Europa: riflessioni sull'equipollenza dei titoli e sulla  libertà di movimento all'interno dell'Unione
Creators: name: Rubino, Angelo
Publisher: name: Università degli Studi di Milano
Year: 2015

description: In this paper I discuss aspects of the problems arising when a recognition of qualifications for the profession of university professor acquired in foreign states members of the European Union is attempted in Italy. I show that different obstacles still exist to the achievement of the free movement of workers -a fundamental principle of the Union enshrined in article 45 of the Treaty on the functioning of the European Union. In this sense I also comment on the obligation for university professors of Italian university to reside within the municipality of their university.
description: RT. A Journal on Research Policy and Evaluation, Vol 3, No 1 (2015)
From the history of immanent text analysis
Creators: name: Gik, Anna
Publisher: name: Zenodo
Year: 2023

description: The article discusses the methodology for studying a work of art, based on the principle of immanence. To solve research problems, modern Russian studies develop special tools, the most important of which include general and specialized dictionaries (the so-called author's dictionaries) and electronic corpora, which have become firmly established in scientific use in the 21st century. Thanks to the rapid development of computer technologies, which made it possible to process very large volumes of texts, incomparable with the scale of the pre-corps period, the emphasis of traditional methods of analysis is shifting. But the range of questions remains the same. Methods for analyzing a work of art involve different approaches. The text as a cultural object is not an isolated formation, but fits into the system of previous works, relying on works of varying degrees of closeness. The system of repulsions and rapprochements determines the aesthetic, stylistic and proper cultural significance of the work. Each work is unique and at the same time connected by a thousand threads with the immediate and further environment. The unification of the approach to a work of art emasculates its meaning. Templates and formulas are good for describing processes that are at least decades old. But a broad picture of literary creativity cannot be recreated without a description of the linguistic originality of an individual work. The selection of such methods of text analysis as immanent (internal) and historical (comparative) is currently based on a large number of works by literary critics, stylists, and linguists. In different periods of time and in different poetological traditions, works with one or another method of description come to the fore.
Γραμμικά συναρτησοειδή στους χώρους Hp , 0
Creators: name: Νάκου, Σοφία Πέτρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Γραμμικά συναρτησοειδή
Xώροι Hardy
Xώρος Bp
Linear functionals
Hardy spaces
The space Bp

description: Σκοπός αυτής της διπλωματικής εργασίας είναι η μελέτη των γραμμικών συναρτησοειδών στους χώρους Hp όπου 0
description: The aim of this master thesis is the study of linear functionals on Hp spaces with 0
Soft Contribution to Quark-Quark Scattering Induced by an Anomalous Chromomagnetic Interaction
Creators: name: Kochelev, N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the soft contribution to high energy quark-quark scattering that arises from an instanton-induced quark anomalous chromomagnetic moment. We demonstrate that this is a large contribution, which cannot be neglected for transverse momenta of a few GeV. We discuss the influence of this effect on inclusive particle production.
description: 4 pages, 2 figures
Glycals as probes for mechanistic studies of glycosylases
Creators: name: Lai, Ellen Chui-Kwan
Publisher: name: University of British Columbia
Year: 2009

description: Several derivatives of D-gluco-heptenitol and D-glucal were synthesized and used to study the reaction mechanisms of three glycosylases (glycosyl mobilizing enzymes): glycogen phosphorylase, J3-glucosidase, and β-N-acetythexosaminidase. l-Fluoro-D-gluco-heptenitol (F₁hept) and 1, 1-difluoro-D-gluco-heptenitol ( F₂hept) acted as competitive inhibitors of glycogen phosphorylase b, and collaborative X-ray crystallographic studies revealed that both F₁hept and F₂hept bind to the active site. Furthermore, F₁hept and phosphate bind simultaneously, allowing crystallographic investigation of a stable ternary complex. Various glycals were examined as potential substrates (catalytically hydrated by the enzyme), or as potential inhibitors or inactivators (of the hydrolysis of a glucoside substrate), of Agrobacterium β -glucosidase. Both heptenitol and methylglucal acted as substrates of this enzyme. Enzymatic protonation of the double bond of methylglucal occurred from below the ring. F₁hept and Fhept acted as noncompetitive (or uncompetitive) inhibitors, as did heptenitol (at concentrations < 8 mM). α, β -Unsaturated glucals, which might act as Michael acceptors for a nucleophilic residue in the active site of a glycosylase, were investigated as a new class of potential inactivators of Agrobacterium β -glucosidase. 1-Nitroglucal functioned as a time-dependent inactivator, probably as a result of a Michael addition reaction between 1-nitroglucal and a nucleophilic residue in the active site. However, protein mass spectrometry revealed that in most cases more than one equivalent of l-nitroglucal bound to the enzyme. Unfortunately, other α, β -unsaturated glucals that were examined [1-cyano-, 1-(methyl carboxylate)-, sodium 1-(carboxylate)-, and 2-cyano- derivatives of glucal] only acted as reversible inhibitors. Three β N-acetythexosaminidases (human placenta, jack bean, and bovine kidney) were also studied, and shown to hydrolyze an N-acetylglucosaminide substrate with net retention of anomeric configuration. All three enzymes hydrated 2-acetamido-D-glucal, yielding N-acetyl-D-glucosamine as the product in each case. This is the first time that proton transfer has been shown to occur from the top face during the hydration of a glycal by a ‘retaining’ β -glycosidase. 2-Acetamido-D-glucal bound tightly to the human, bovine, and jack bean enzymes, with K₁ values of 8.5, 25, and 29 M, respectively.
Η παιδεία στη σημερινή κοινωνία της πληροφορίας
Creators: name: Κούρτης, Δημήτριος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: Παιδαγωγική Επιθεώρηση, Vol. 39 (2005)
Dark Gravitational Field on Riemannian and Sasaki Spacetime
Creators: name: Stavrinos, Panayiotis
name: Savvopoulos, Christos
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The aim of this paper is to provide the geometrical structure of a gravitational field that includes the addition of dark matter in the framework of a Riemannian and a Riemann--Sasaki spacetime. By means of the classical Riemannian geometric methods we arrive at modified geodesic equations, tidal forces, and Einstein and Raychaudhuri equations to account for extra dark gravity. We further examine an application of this approach in cosmology. Moreover, a possible extension of this model on the tangent bundle is studied in order to examine the behavior of dark matter in a unified geometric model of gravity with more degrees of freedom. Particular emphasis shall be laid on the problem of the geodesic motion under the influence of dark matter.
description: 20 pages
Wide Field Astronomy at Dome C: two IR surveys complementary to SNAP
Creators: name: Burgarella, D.
name: Ferrari, M.
name: Fusco, T.
name: Langlois, M.
name: Leroux, B.
name: Moretto, G.
name: Nicole, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Surveys provide a wealth of data to the astronomical community that are used well after their completion. In this paper, we propose a project that would take the maximum benefit of Dome C in Antarctica by performing two surveys, in the wavelength range from 1-5 micron, complementary to SNAP space surveys. The first one over 1000 sq. deg. (1 KdF) for 4 years and the second one over 15 sq. deg (SNAP-IR) for the next 4 years at the same time as SNAP 0.35-1.7 microns survey. By using a Ground-Layer Adaptive Optics system, we would be able to recover, at the ice level and over at least half a degree in radius, the 300 mas angular resolution available above the 30-m high turbulent layer. Such a survey, combining a high angular resolution with high sensitivities in the NIR and MIR, should also play the role of a pre-survey for JWST and ALMA.
description: Invited contribution to the 1st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraints for Antarctic optical/IR Astronomy": 8 pages, 5 Postscript figures
Additional file 1 of Fragility fracture identifies patients at imminent risk for subsequent fracture: real-world retrospective database study in Ontario, Canada
Creators: name: Adachi, Jonathan D.
name: Brown, Jacques P.
name: Schemitsch, Emil
name: Jean-Eric Tarride
name: Brown, Vivien
name: Bell, Alan D.
name: Reiner, Maureen
name: Packalen, Millicent
name: Ponda Motsepe-Ditshego
name: Burke, Natasha
name: Slatkovska, Lubomira
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Additional file 1: Supplementary Table 1. Primary databases used for the study. Supplementary Table 2. Diagnosis Codes for Fragility Fractures. Supplementary Table 3. Diagnosis Codes for Trauma Codes. Supplementary Figure 1. Study schema. Supplementary Figure 2. Flow Diagram of patients included in study. Supplementary Figure 3. Number and proportion of patients with second fragility fractures by site of second fracture. Supplementary Figure 4. Proportion of patients with (a) BMD assessment, over a period of 5 years prior to and post fracture, by sex and (b) receiving any osteoporosis treatment, by sex and age group, over time*
Διερεύνηση των γνώσεων, στάσεων και των συμπεριφορών των αγροτών σε θέματα που αφορούν τη διαχείριση της οργανικής ουσίας του εδάφους
Creators: name: Καλόγηρος, Ευάγγελος Αχιλλέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Οργανική ουσία
Άροση
Αμειψισπορά
Organic matter
Tillage
Crop rotation

description: Η εργασία αυτή διερευνά σε δύο τυπικές γεωργικές περιοχές της ελληνικής υπαίθρου που ασχολούνται χρόνια με την γεωργία, τον τρόπο με τον οποίο αντιμετωπίζονται τα καλλιεργήσιμα εδάφη. Πώς αντιμετωπίζουν οι αγρότες αυτών των περιοχών την άροση, τα επεξεργασμένα οργανικά λιπάσματα, την αμειψισπορά και αν ενσωματώνουν τα υπολείμματα των καλλιεργειών στο έδαφος. Κατασκευάστηκε και διανεμήθηκε το ερωτηματολόγιο για να μπορέσουν να εξαχθούν κάποια συμπεράσματα γύρω από αυτά τα θέματα, αφού συλλεχθούν και αναλυθούν οι αντίστοιχες πληροφορίες. Σκοπός του προγράμματος αποτέλεσε το να γίνουν συστάσεις τόσο σε τοπικό όσο και σε κεντρικό επίπεδο. Στην παρούσα εργασία παρουσιάζονται το περιεχόμενο, η δομή και τα αποτελέσματα του ερωτηματολογίου σε δύο αγροτικές περιοχές της χώρας μας, καθώς και τα βασικότερα συμπεράσματα που προκύπτουν από αυτό σχετικά με τη στάση των αγροτών σε θέματα που αφορούν τη διαχείριση της οργανικής ουσίας του εδάφους.
description: This paper explores two typical agricultural areas of the Greek countryside which are dealing with agriculture for many years, the way in which agricultural soils are treated. How farmers face the tillage of these areas, processed organic fertilizers, crop rotation and if they incorporate crop residues into the soil. the questionnaire was constructed and distributed in order to be able to draw some conclusions about these matters, when information has been collected and analyzed, and to make proposals on these issues. Another scope of the program was to make recommendations at both local and central level. This paper presents the content, the structure and the results of the questionnaire in two rural areas of our country, and the main conclusions drawn from this regarding the attitude of farmers on issues relating to the management of soil organic matter.
Orbital and Spin Character of Doped Carriers in Infinite-Layer Nickelates
Creators: name: Rossi, M.
name: Lu, H.
name: Nag, A.
name: Li, D.
name: Osada, M.
name: Lee, K.
name: Wang, B. Y.
name: Agrestini, S.
name: Garcia-Fernandez, M.
name: Chuang, Y. -D.
name: Shen, Z. X.
name: Hwang, H. Y.
name: Moritz, B.
name: Zhou, Ke-Jin
name: Devereaux, T. P.
name: Lee, W. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The recent discovery of superconductivity in Nd$_{1-x}$Sr$_{x}$NiO$_2$ has drawn significant attention in the field. A key open question regards the evolution of the electronic structure with respect to hole doping. Here, we exploit x-ray absorption spectroscopy (XAS) and resonant inelastic x-ray scattering (RIXS) to probe the doping dependent electronic structure of the NiO$_2$ planes. Upon doping, a higher energy feature in Ni $L_3$ edge XAS develops in addition to the main absorption peak. By comparing our data to atomic multiplet calculations including $D_{4h}$ crystal field, the doping induced feature is consistent with a $d^8$ spin singlet state, in which doped holes reside in the $d_{x^2-y^2}$ orbitals, similar to doped single band Hubbard models. This is further supported by orbital excitations observed in RIXS spectra, which soften upon doping, corroborating with Fermi level shift associated with increasing holes in the $d_{x^2-y^2}$ orbital.
description: 6 pages, 4 figures. Supplemental material included
Η τεχνολογία στην καθημερινή ζωή όπως την αντιλαμβάνονται παιδιά του δημοτικού σχολείου
Creators: name: Τασιός, Αθανάσιος
name: Σολομωνίδου, Χριστίνα
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The aim of the pilot research we present here was to investigate primary school pupils' representations about daily life technologies (DLT) in a prospect of studying technology in Greek Primary Education. The participants were 300 pupils (145 girls, 155 boys) in fourth, fifth and sixth grade of 5 primary schools in central Greece. The pupils were called to answer an open-ended question by selecting freely the way of answer with a text and/or a drawing. The majority of the pupils answered by drawing, the study of which showed that almost 1/3 of the pupils conceive DLT exclusively as Information and Communication Technology. Simultaneously, more than half of the pupils faced DLT as a group of technical means isolated from human activities and the social frame of their use. The technologies that are reported more often are ICT, domestic technology (electric appliances mainly} and transportation means. These data are used for planning, organizing and implementing a mini curriculum for studying technology in primary education within the frame of social constructivism.
description: Παιδαγωγική Επιθεώρηση, Vol. 38 (2004)
MPEC 2024-T154 : 2024 TP3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TP3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Vortex induced deformation of the superconductor crystal lattice
Creators: name: Lipavský, Pavel
name: Morawetz, Klaus
name: Koláček, Jan
name: Brandt, Ernst Helmut
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Deformation of the superconductor crystal lattice caused by Abrikosov vortices is formulated as a response of the elastic crystal lattice to electrostatic forces. It is shown that the lattice compression is linearly proportional to the electrostatic potential known as the Bernoulli potential. Eventual consequences of the crystal lattice deformation on the effective vortex mass are discussed.
description: 4 pages 5 figures
PBjam: A Python package for automating asteroseismology of solar-like oscillators
Creators: name: Nielsen, M. B.
name: Davies, G. R.
name: Ball, W. H.
name: Lyttle, A. J.
name: Li, T.
name: Hall, O. J.
name: Chaplin, W. J.
name: Gaulme, P.
name: Carboneau, L.
name: Ong, J. M. J.
name: García, R. A.
name: Mosser, B.
name: Roxburgh, I. W.
name: Corsaro, E.
name: Benomar, O.
name: Moya, A.
name: Lund, M. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Asteroseismology is an exceptional tool for studying stars by using the properties of observed modes of oscillation. So far the process of performing an asteroseismic analysis of a star has remained somewhat esoteric and inaccessible to non-experts. In this software paper we describe PBjam, an open-source Python package for analyzing the frequency spectra of solar-like oscillators in a simple but principled and automated way. The aim of PBjam is to provide a set of easy-to-use tools to extract information about the radial and quadrupole oscillations in stars that oscillate like the Sun, which may then be used to infer bulk properties such as stellar mass, radius and age or even structure. Asteroseismology and its data analysis methods are becoming increasingly important as space-based photometric observatories are producing a wealth of new data, allowing asteroseismology to be applied in a wide range of contexts such as exoplanet, stellar structure and evolution, and Galactic population studies.
description: 12 Pages, 4 figures. Accepted for publication in AJ. Associated software available at https://doi.org/10.5281/zenodo.4300079
Διερεύνηση των στάσεων των φοιτητών στον Προγραμματισμό των ηλεκτρονικών υπολογιστών
Creators: name: Αναστασιάδου, Σ.
name: Καράκος, Α.
name: Οικονόμου, Ανδρέας
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The aim of the present research is to find the factors, which define students' behaviors towards programming. The Analyze Factorielle des Correspondences (AFC) has been used which help to devise the people who answered in groups according to their attitudes. To apply the method variables were concluded, which referred to students' feelings towards programming, their ability to understand programming, its. value and final the difficulty of programming as a subject.
description: Παιδαγωγική Επιθεώρηση, Vol. 38 (2004)
Multiscale Detection of Cancerous Tissue in High Resolution Slide Scans
Creators: name: Zhang, Qingchao
name: Heldermon, Coy D.
name: Toler-Franklin, Corey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.5.0; I.5.4; I.4.0

description: We present an algorithm for multi-scale tumor (chimeric cell) detection in high resolution slide scans. The broad range of tumor sizes in our dataset pose a challenge for current Convolutional Neural Networks (CNN) which often fail when image features are very small (8 pixels). Our approach modifies the effective receptive field at different layers in a CNN so that objects with a broad range of varying scales can be detected in a single forward pass. We define rules for computing adaptive prior anchor boxes which we show are solvable under the equal proportion interval principle. Two mechanisms in our CNN architecture alleviate the effects of non-discriminative features prevalent in our data - a foveal detection algorithm that incorporates a cascade residual-inception module and a deconvolution module with additional context information. When integrated into a Single Shot MultiBox Detector (SSD), these additions permit more accurate detection of small-scale objects. The results permit efficient real-time analysis of medical images in pathology and related biomedical research fields.
description: 14 pages, 7 figures, 2 tables
The detectability of HI 21-cm absorption in damped Lyman-alpha systems
Creators: name: Curran, S. J.
name: Webb, J. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we investigate the possible reasons why HI 21-cm absorption in damped Lyman-alpha systems (DLAs) has only been detected at low redshift... We suggest that the lack of 21-cm absorption detections at high redshift arises from the fact that these DLAs are at similar angular diameter distances to the background quasars (i.e. the distance ratios are always close to unity): Above z~1.6 the covering factor becomes largely independent of the DLA--QSO distance, making the high redshift absorbers much less effective at covering the background continuum emission. At low redshift, small distance ratios are strongly favoured by the 21-cm detections, whereas large ratios are favoured by the non-detections. This mix of distance ratios gives the observed mix of detections and non-detections at z<1.6.In addition to the predominance of large distance ratios and non-detections at high redshift, this strongly suggests that the observed distribution of 21-cm absorption in DLAs is dominated by geometric effects.
description: 7 page, 6 figures, Accpeted by MNRAS
Απόψεις των εκπαιδευτικών για την αξιολόγηση της σχολικής επίδοσης των μαθητών του δημοτικού σχολείου
Creators: name: Αγγελοπούλου, Δέσποινα
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: Das Ziel dieser Arbeit ist festzustellen, unter welchen Aspekten die Grundschullehrerinnen und -lehrer die Schulerbeurteilung betrachten, wie sie das Bewertungssystem aufnehmen und wie sic es praktisch anwenden. Die Angaben der vorliegenden Arbeit stammen ausschlielich aus den Verwaltungsbezirk Attika. In einem ersten Schritt der statistischen Analyse wurden die Ansichten der Probanden nach dem spezieller. Fragestellungen der Untersuchung zugeordnet. Dann wurden Prozentwerte berechnet. Der nachfolgende Τeil zur Datenauswertung bezieht sich auf die Frage, ob die Antworten der Befragten je nach Geschlecht, Dienstalter, Fortbildung, spezieller Ausbildung zur Schülerbeurteilung und Bezugsnormorientierung in eine bestimmte Richtung weisen. Zusammenfassend lässt sich feststellen, dass Dienstalter und Bezugsnormorientierung der Befragten einen gewissen Einfluss auf ihre Ansichten und ihre Schulpraktika! zur Leistungsbeurteilung haben.
description: Παιδαγωγική Επιθεώρηση, Vol. 38 (2004)
Spatial mode properties of plasmon assisted transmission
Creators: name: Ren, Xi-Feng
name: Guo, Guo-Ping
name: Huang, Yun-Feng
name: Wang, Zhi-Wei
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Orbital angular momentum of photons is explored to study the spatial mode properties of plasmon assisted transmission process. We found that photons carrying different orbital angular momentums have different transmission efficiencies, while the coherence between these spatial modes can be preserved.
Additional file 3 of Perinatal outcome after vacuum assisted delivery with digital feedback on traction force; a randomised controlled study
Creators: name: Romero, Stefhanie
name: Pettersson, Kristina
name: Yousaf, Khurram
name: Westgren, Magnus
name: Ajne, Gunilla
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 3. Clinical Protocol Vacuum Extraction.