cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scaling near random criticality in two-dimensional Dirac fermions
Creators: name: Morita, Y.
name: Hatsugai, Y.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Recently the existence of a random critical line in two dimensional Dirac fermions is confirmed. In this paper, we focus on its scaling properties, especially in the critical region. We treat Dirac fermions in two dimensions with two types of randomness, a random site (RS) model and a random hopping (RH) model. The RS model belongs to the usual orthogonal class and all states are localized. For the RH model, there is an additional symmetry expressed by ${\{}{\cal H},γ{\}}=0$. Therefore, although all non-zero energy states localize, the localization length diverges at the zero energy. In the weak localization region, the generalized Ohm's law in fractional dimensions, $d^{*}(<2)$, has been observed for the RH model.
description: RevTeX with 4 postscript figures, To appear in Physical Review B
Black-Scholes option pricing within Ito and Stratonovich conventions
Creators: name: Perello, J.
name: Porra, J. M.
name: Montero, M.
name: Masoliver, J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Options financial instruments designed to protect investors from the stock market randomness. In 1973, Fisher Black, Myron Scholes and Robert Merton proposed a very popular option pricing method using stochastic differential equations within the Ito interpretation. Herein, we derive the Black-Scholes equation for the option price using the Stratonovich calculus along with a comprehensive review, aimed to physicists, of the classical option pricing method based on the Ito calculus. We show, as can be expected, that the Black-Scholes equation is independent of the interpretation chosen. We nonetheless point out the many subtleties underlying Black-Scholes option pricing method.
description: 14 pages
Αξιολόγηση της επίδοσης των μαθητών στην έκθεση μέσω του τεχνολογικού αυτοματισμού
Creators: name: Μποζιάρης, Βασίλειος
name: Κωνσταντίνου, Χαράλαμπος
name: Κωνσταντίνου, Ιωάννης
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2022

description: The present paper attempts to bibliographically cover the Automated Essay Assessment, a particular emerging assessment technique, which has recently introduced as a technological alternative to the traditional student essays’ assessment technique, conducted by humans. Many software programs or platforms have recently been developed, which are underpinning the educational process and used for the assessment of essays in large scale examinations. The paper starts by presenting the topic of the evaluation in education, followed by analyzing the significant importance of essay writing in the process of developing linguistic, cognitive, mental and social characteristics to the students. The topic of the traditional assessment of students’ performance in the free written expression, as it is performed by human, is presented as well, as well as the topic of Automated Essay Assessment, as it is described in the international literature. Automated Essay Assessment platforms present many advantages and have won many supporters, but, on the other hand, have also cause several objections and many adversaries have raised serious arguments against their usage. The paper, finally, concludes by listing the most important findings that occur from the critical comparison between the traditional and the automated essay assessment.
description: Παιδαγωγική Επιθεώρηση, Vol. 71 (2021)
Η παιδαγωγική τεκμηρίωση ως τεχνική αξιολόγησης στο αναλυτικό πρόγραμμα του Δημοτικού Σχολείου
Creators: name: Μπαμπάλης, Θωμάς Κ.
name: Μαλαφάντης, Κωνσταντίνος Δ.
name: Λαζαράκου, Ελισάβετ Δ.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2022

description: Pedagogical documentation as a technique for assessing the learning process has been widely employed in literature since its first implementation in the Reggio Emilia schools of Northern Italy. The present study highlights the various possibilities offered by pedagogical documentation to teachers to discern the special ways in which their students approach learning. Additionally, also examined is the implementation of pedagogical documentation as a tool of reflection which aims at the feedback of both students and the teacher in order to enhance learning. The study classifies the pedagogical documentation within the spectrum of formative assessment techniques and explores the distinct points that differentiate it from other forms of assessment. It concludes by proposing the inclusion of pedagogical documentation as an alternative assessment tool in the repertoire of established assessment techniques of the primary school curriculum.
description: Παιδαγωγική Επιθεώρηση, Vol. 71 (2021)
Κριτικός γραμματισμός και Συμπερίληψη: ένα ενδεικτικό σχέδιο μουσειοπαιδαγωγικής δράσης
Creators: name: Μαλαφάντης, Kωνσταντίνος Δ.
name: Ρήγα, Ασημίνα
name: Ιωαννίδη, Βασιλική
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2022

description: The effectiveness of experiential learning in teaching children with and without learning difficulties is considered valuable. The ability to replace regular “learning tools” which require specific dexterities, such as reading and writing, with alternative ways of learning, motivates students with learning difficulties into the process of acquiring new knowledge. In particular, the main advantage offered by museums compared to the other learning environments, lies in the fact that they help arouse students’ learning interest by presenting tangible exhibits directly accessible to the human senses. In this way, students develop their observation and imagination skills, express their own thoughts and discover new knowledge in an experiential way. This paper presents a museum-pedagogical action plan that was implemented in the context of teaching Modern Greek Language and Physics in A΄, B΄ and C΄ High School classes and included the interdisciplinary method as well as the experiential approach of the concept of sound and communication. All of the students (either with or without learning difficulties) participated together interactively with a view to forming an inclusive attitude and philosophy. The aim of this study is to highlight museum-pedagogical methods through the “participation-experience-creation” scheme and to present museums as a vehicle of promoting critical literacy and inclusion.
description: Παιδαγωγική Επιθεώρηση, Vol. 71 (2021)
Εξ αποστάσεως διδασκαλία των Φυσικών Επιστημών κατά την πανδημία COVID-19: αποτύπωση του βαθμού ικανοποίησης των μαθητών Α΄ Λυκείου
Creators: name: Κυριακού, Κυριάκος
name: Στεφανίδου, Κωνσταντίνα
name: Μανδρίκας, Αχιλλέας
name: Σταύρου, Ιωάννα
name: Σκορδούλης, Κωνσταντίνος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2022

description: This article presents the findings from a survey conducted on high school students (K-10) in order to emerge the degree of students’ satisfaction concerning the distance science education, which was necessarily implemented by distance due to the COVID-19 pandemic during the school year 2020-21. The research was conducted with a questionnaire of 23 closed and 2 open-ended questions in a sample of 197 students. It can be deduced from the students’ answers that the distance science education did not like and did not satisfy the students. The main positive point was the increased use of supporting audiovisual material. As negative points, technical connection problems, lack of communication with classmates and teacher, reduced attention, lack of sufficient experimentation and limited understanding of concepts were recorded.
description: Παιδαγωγική Επιθεώρηση, Vol. 71 (2021)
INGLIZ VA O'ZBEK TILLARIDA JIHOZ NOMLARINING ETNOS TURMUSH BILAN BOG'LIQ MILLIY - MADANIY XUSUSIYATLARI
Creators: name: Bekturdiyeva, Nilufar
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada ingliz va o‘zbek tilllarida uy-jihoz nomlarining xalqning turmush tarzi, an’analari bilan bog‘liq milliy-madaniy xussusiyatlari tahlili bilan bog‘liq jihatlar yoritilgan. Tadqiqot jarayonida lingvomadaniy birliklar haqida ma’lumotlar izohi bilan bir qatorda, lingvomadaniy birliklardan biri bo‘lgan realiyalarning ingliz va o‘zbek tillaridagi uy-jihoz nomlari asosida o‘rganildi.
Εκπαιδευτικό Δράμα, Επαγγελματική Ανάπτυξη και Συμβουλευτική Σταδιοδρομίας: μια δυναμικά αναπτυσσόμενη σχέση
Creators: name: Ζουρνά, Χριστίνα
name: Παπαβασιλείου, Ιωάννα
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2022

description: Drama in Education (DiE), an experiential pedagogical method, has being used in education to explore oneself and the world; however, during the last decade it has also been introduced as an innovative training method in other professional sectors for enhancing professional development. The purpose of this article is to present the evolvement of this dynamic relationship claiming that Career Guidance and Counselling would most benefit by introducing DiE as a group counselling and career designing method. Good practices to support this claim are provided, such as successful DiE experiential workshops at the University of Macedonia to address pre- and postgraduate students’ and adults’ professional skills development. Moreover, the first outcomes of an innovative ongoing PhD research on teenagers’ career skills development and career design through DiE are also provided.
description: Παιδαγωγική Επιθεώρηση, Vol. 71 (2021)
Additional file 2: of The (cost) effectiveness of procedural sedation and analgesia versus general anaesthesia for hysteroscopic myomectomy, a multicentre randomised controlled trial: PROSECCO trial, a study protocol
Creators: name: Meulen, Julia Van Der
name: Bongers, Marlies
name: Coppus, Sjors
name: Bosmans, Judith
name: JosĂŠ Maessen
name: Rengerink, Katrien Oude
name: Overdijk, Lucilla
name: Celine Radder
name: Lucet Van Der Voet
name: Smeets, Nicol
name: Vliet, Huib Van
name: Hehenkamp, Wouter
name: Arentje Manger
name: Spaans, Wilbert
name: Bakkum, Erica
name: HorrĂŠe, Nicole
name: BriĂŤt, Justine
name: Steeg, Jan Van Der
name: Kok, Helen
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Questionnaire on side effects 24â h after surgery. (PDF 109 kb)
The Tensor Pomeron and Low-x Deep Inelastic Scattering
Creators: name: Britzger, Daniel
name: Ewerz, Carlo
name: Glazov, Sasha
name: Nachtmann, Otto
name: Schmitt, Stefan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The tensor-pomeron model is applied to low-x deep-inelastic lepton-nucleon scattering and photoproduction. We consider c.m. energies in the range 6 - 318 GeV and Q^2 < 50 GeV^2. In addition to the soft tensor pomeron, which has proven quite successful for the description of soft hadronic high-energy reactions, we include a hard tensor pomeron. We also include f_2-reggeon exchange which turns out to be particularly relevant for real-photon-proton scattering at c.m. energies in the range up to 30 GeV. The combination of these exchanges permits a description of the absorption cross sections of real and virtual photons on the proton in the same framework. In particular, a detailed comparison of this two-tensor-pomeron model with the latest HERA data for x < 0.01 is made. Our model gives a very good description of the transition from the small-Q^2 regime where the real or virtual photon behaves hadron-like to the large-Q^2 regime where hard scattering dominates. Our fit allows us, for instance, a determination of the intercepts of the hard pomeron as 1.3008(+73,-84), of the soft pomeron as 1.0935(+76,-64), and of the f_2 reggeon. We find that in photoproduction the hard pomeron does not contribute within the errors of the fit. We show that assuming a vector instead of a tensor character for the pomeron leads to the conclusion that it must decouple in real photoproduction.
description: 47 pages
Collective oscillations of a classical gas confined in harmonic traps
Creators: name: Guery-Odelin, D.
name: Zambelli, F.
name: Dalibard, J.
name: Stringari, S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Starting from the Boltzmann equation we calculate the frequency and the damping of the monopole and quadrupole oscillations of a classical gas confined in an harmonic potential. The collisional term is treated in the relaxation time approximation and a gaussian ansatz is used for its evaluation. Our approach provides an explicit description of the transition between the hydrodynamic and collisionless regimes in both spherical and deformed traps. The predictions are compared with the results of a numerical simulation.
description: 6 pages, revtex, 2 figures included
Ποσοτική εκτίμηση της επαγγελματικής ικανοποίησης των εκπαιδευτικών: Η περίπτωση σχολείων του Βόλου
Creators: name: Σταχτέας, Χαράλαμπος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: The job satisfaction of teachers significantly affects the performance of the school. In this paper quantifies the degree of job satisfaction of teachers of the general secondary school units of Volos. The research was done by census and was carried out using the questionnaire of Everard and Morris. The general and individual degrees of job satisfaction, although they are not very small, show considerable deficits in the European average. Between Secondary High Schools and High Schools, small variations are recorded, which were found to be statistically non-significant. The results of the research can guide the director of a modern school in order to create the appropriate incentive conditions to staff with the expectation of achieving the school unit’s objectives. They may also provide particularly useful information on policy-making with a view to improve quality of education.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Η Μάθηση ως Εμπειρία: Μια φαινομενολογική προσέγγιση στην εκπαιδευτική έρευνα με τη χρήση βινιετών
Creators: name: Συμεωνίδης, Βασίλειος
name: Παπαδοπούλου, Βασιλική
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: This article aims to provide insights on a phenomenological approach to educational research through the use of vignettes. The specific approach was developed at the University of Innsbruck in Austria in order to explore students’ learning experiences as they occur in the classroom. A vignette is a thick description of the lived experience of the researchers and stays as close as possible to the experience of the research subjects in the field. After creating a vignette, the process of reading follows, during which the researcher adopts different perspectives to analyse the phenomenon under study. The article provides an example of a vignette and its reading. Vignettes can help us to reclaim the pedagogical dimension of learning by raising educational questions from a pedagogical perspective and by supporting pedagogical action.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Η συμβολή του ρόλου των εκπαιδευτικών στην εφαρμογή των σύγχρονων διδακτικών μεταρρυθμίσεων. Η σημασία της επαγγελματικής τους ανάπτυξης
Creators: name: Πασσά, Ευμορφία Ε.
name: Κουγιουρούκη, Μαρίνα Μ.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: The teacher is one of the most important factors of learning. The new era in teaching requires teachers to have multiple and demanding roles. Concerning curriculum, the teacher is the most significant agent of curriculum implementation. Trying out new ideas and methods in the classroom depend on the teachers’ ability to adjust to new thinking. Teaching is an ongoing process and it does not entail only obtaining a university degree. The teachers’ work is influenced by a lot of factors which should be considered when trying to enhance the teachers’ professional identity and development. This article argues that teachers in order to be able to respond effectively to their demanding task they should be supported with effective training and the provision of satisfactory working conditions and teaching facilities.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
FOSTERING A SAFER ONLINE ENVIRONMENT: ADDRESSING POLICY VIOLATIONS AND SAFEGUARDING BLACK WOMEN
Creators: name: Johnson,, Rachel
name: Davis,, M
Publisher: name: AMERICAN SERIAL
Year: 2024
Subjects: Twitter, social media, online harassment, Black women, digital violence, safety policies, muted group theory, qualitative research

description: Online trolling and digital violence have become pervasive problems, especially towards Black women on social media platforms such as Twitter. Yet, there is a lack of care and concern for the safety of Black women on social media and their abusive experiences being handled poorly. Addressing these issues, this study employs the Muted Group Theory to explore the experiences of Black women on social media. The research intends to find strategies that Black women are utilizing to cope with online abuse and to suggest measures that can be implemented by social media sites to regulate and punish policy violations. The study utilizes qualitative research methods such as literature reviews, focus groups, and individual interviews to gather data. Research indicates that online harassment targeting women is increasing, and Black women are impacted the most. The study intends to change the current safety policies on Twitter and generate effective ways to combat online harassment to promote a safer online environment for Black women. The findings of this study will highlight the need for a safer online community where all women can feel protected from abuse.
Chrysophyllum cuneifolium A. DC.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Sapotaceae
Chrysophyllum
Chrysophyllum cuneifolium

description: [1599] Chrysophyllum cuneifolium (Rudge) A.DC.
 Prodr. [A. P. de Candolle] 8: 160 [mid Mar. 1844] (Candolle 1844). — Bumelia cuneifolia Rudge, Pl. Guian. [Rudge] 1 (4): 30 [Apr.-May 1806] (Rudge 1806). — Prieurella cuneifolia (Rudge) Pierre ex Aubrév., Adansonia, n.s., 1 (1): 19 [Nov. 1961] (Aubréville 1961), nom. inval. — Ecclinusa cuneifolia (Rudge) Aubrév., Adansonia, n.s., 1 (1): 20 [Nov. 1961] (Aubréville 1961), nom. inval.
 NOTES. — The new combinations Prieurella cuneifolia and Ecclinusa cuneifolia were not validly published because the basionym was not explicitely cited (Turland et al. 2018: Art. 41.3). Prieurella cuneifolia (Rudge) Pierre ex Aubrév. appeared on p. 69 of Pierre’s Notes Botaniques: Sapotaceae, but pp. 69-83 of that work were never published (they exist only as proofs at P).
VERNACULAR NAMES. — Pa: uu-kamwi-wahuyo, wakukwa-adudu • Ka: atakamala, kusili palatalɨ • Te: wɨla pulu’a • Wp: wɨla pele • Nt: kwata bobi • Cr: tété-kwata • Br: abiurana, maçarandúbarana.
 HERBARIUM DATA (FG). — 47 collections at CAY. Sel. exs.: J. Martin s.n. (original material BM[BM000952593]).
INVENTORY DATA (FG). — 51 trees in 36 plots; Fmax <1 %; dbhinv = 22.1 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 686, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Το έργο και η εκπαίδευση των εκπαιδευτικών υπό το φως των σύγχρονων συζητήσεων
Creators: name: Ξωχέλλης, Παναγιώτης Δ.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: Dieser Artikel besteht aus drei Teilen. Der erste Teil versucht die Frage zu beantworten warum in den letzten Jahren die Diskussion über die Aufgabe und die Ausbildung der Lehrer so akut geworden ist. Außer den nicht befriedigenden Befunden der internationalen Studien, wie z. B. der alle drei Jahre wiederholenden Untersuchung PISA, ein wichtiger Grund sind nach der Auffassung des Verfassers die neueren sozialen, wissenschaftlichen und technologischen Entwicklungen, die kurz aufgeführt und bewertet werden. Der zweite Teil des Artikels betrifft die unter dem Einfluss der oben genannten Entwicklungen stattfindenden Veränderungen in der Bildung der jungen Generation und in den Rollen des Lehrers und des Schülers, die ebenfalls benannt und kommentiert werden. Der dritte Teil des Aufsatzes beinhaltet die Vorschläge des Verfassers, die zur Verbesserung der Lehrerausbildung führen können.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Additional file 1: of The (cost) effectiveness of procedural sedation and analgesia versus general anaesthesia for hysteroscopic myomectomy, a multicentre randomised controlled trial: PROSECCO trial, a study protocol
Creators: name: Meulen, Julia Van Der
name: Bongers, Marlies
name: Coppus, Sjors
name: Bosmans, Judith
name: JosĂŠ Maessen
name: Rengerink, Katrien Oude
name: Overdijk, Lucilla
name: Celine Radder
name: Lucet Van Der Voet
name: Smeets, Nicol
name: Vliet, Huib Van
name: Hehenkamp, Wouter
name: Arentje Manger
name: Spaans, Wilbert
name: Bakkum, Erica
name: HorrĂŠe, Nicole
name: BriĂŤt, Justine
name: Steeg, Jan Van Der
name: Kok, Helen
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Questionnaire on side effects 24â h after surgery. (PDF 129 kb)
The impact of black hole seeding in cosmological simulations
Creators: name: Wang, Ella Xi
name: Taylor, Philip
name: Federrath, Christoph
name: Kobayashi, Chiaki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Most cosmological simulations of galaxy evolution include active galactic nucleus (AGN) feedback, typically seeding black holes with masses of $\geq 10^5\, h^{-1}\, \rm{M}_{\odot}$ when the dark matter halo exceeds a given threshold mass. Taylor & Kobayashi (2014) introduced a new model, which seeds black holes at $10^3\, h^{-1}\, \rm{M}_{\odot}$ based on gas properties alone, and motivated by the channel of black hole formation due to the collapse of the most massive first stars in the Universe. We compare the black hole mass when the dark matter halo mass is $10^{10}\, h^{-1}\, \rm{M}_{\odot}$ between the different seeding methods. We find that seeding based upon gas properties gives a distribution of black hole masses with $\langle \log M_{\rm{BH}} {/ \rm{M}_{\odot}} \rangle = (5.18 \pm 0.54)$ when dark matter halo mass is $10^{10}\, h^{-1}\, \rm{M}_{\odot}$, consistent with the {seeding criteria} used in other simulations. However, the evolution of individual galaxies can be strongly affected by the different seeding mechanisms. We also find that the mean value of the distribution of black hole masses at a given halo mass evolves over time, with higher masses at higher redshifts, indicative of downsizing. Our results can inform more physically motivated black hole and AGN feedback models in cosmological simulations and semi-analytic models.
description: 10 pages, 7 figures, accepted for publication in MNRAS
Study of the B^0 Semileptonic Decay Spectrum at the Upsilon(4S) Resonance
Creators: name: CLEO Collaboration
name: Artuso, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have made a first measurement of the lepton momentum spectrum in a sample of events enriched in neutral B's through a partial reconstruction of B0 --> D*- l+ nu. This spectrum, measured with 2.38 fb**-1 of data collected at the Upsilon(4S) resonance by the CLEO II detector, is compared directly to the inclusive lepton spectrum from all Upsilon(4S) events in the same data set. These two spectra are consistent with having the same shape above 1.5 GeV/c. From the two spectra and two other CLEO measurements, we obtain the B0 and B+ semileptonic branching fractions, b0 and b+, their ratio, and the production ratio f+-/f00 of B+ and B0 pairs at the Upsilon(4S). We report b+/b0=0.950 (+0.117-0.080) +- 0.091, b0 = (10.78 +- 0.60 +- 0.69)%, and b+ = (10.25 +- 0.57 +- 0.65)%. b+/b0 is equivalent to the ratio of charged to neutral B lifetimes, tau+/tau0.
description: 14 page, postscript file also available at http://w4.lns.cornell.edu/public/CLNS
title: Residual‐Chemical‐Shift‐Anisotropy‐Based Enantiodifferentiation in Lyotropic Liquid Crystalline Phases Based on Helically Chiral Polyacetylenes
Creators: name: Fuentes‐Monteverde, Juan Carlos
name: Noll, Markus
name: Das, Akhi
name: Immel, Stefan
name: Reggelin, Michael
name: Griesinger, Christian
name: Nath, Nilamoni
Publisher: name: Wiley-VCH
Year: 2024

description: Anisotropic NMR spectroscopy, revealing residual dipolar couplings (RDCs) and residual chemical shift anisotropies (RCSAs) has emerged as a powerful tool to determine the configurations of synthetic and complex natural compounds. The deduction of the absolute in addition to the relative configuration is one of the primary goals in the field. Therefore, the investigation of the enantiodiscriminating capabilities of chiral alignment media becomes essential. While RDCs and RCSAs are now used for the determination of the relative configuration routinely, RCSAs have not been measured in chiral alignment media such as chiral liquid crystals. Herein, we present this application by measuring RCSAs for chiral analytes such as indanol and isopinocampheol in the lyotropic liquid crystalline phase of an L‐valine derived helically chiral polyacetylenes. We have also demonstrated that a single 1D ¹³C−{¹H} NMR spectrum suffices to get the RCSAs circumventing the necessity to acquire two spectra at two alignment conditions.
Microscopic Selection of Fluid Fingering Pattern
Creators: name: Kessler, David A.
name: Levine, Herbert
Publisher: name: arXiv
Year: 2001
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the issue of the selection of viscous fingering patterns in the limit of small surface tension. Through detailed simulations of anisotropic fingering, we demonstrate conclusively that no selection independent of the small-scale cutoff (macroscopic selection) occurs in this system. Rather, the small-scale cutoff completely controls the pattern, even on short time scales, in accord with the theory of microscopic solvability. We demonstrate that ordered patterns are dynamically selected only for not too small surface tensions. For extremely small surface tensions, the system exhibits chaotic behavior and no regular pattern is realized.
description: 6 pages, 5 figures
Ψηφιακή εκπαίδευση και ελληνικό σωφρονιστικό σύστημα: Η προβληματική των ίσων ευκαιριών
Creators: name: Ντάφλου, Αικατερίνη Ι.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: The higher education has been reshaped through e-learning and the digitization of teaching materials and teaching methods. Potentially, these pedagogical processes mediated by new technology ensure that distance will no longer be an obstacle to equal participation in higher  education.Although in principal universities claim to prioritize student equity in fact the incarcerated students have limited access to higher education and therefore the inequality in access to higher education is perpetuated. This paper explores deeper problems within the digitized university, education in Restorative justice practice, and society’s equality of opportunity parameters. The digital revolution may be reducing opportunities for the most marginalized of students such as incarcerated students and other groups without direct internet access. The challenge is to ensure incarcerated students are not left behind in this digital age and to balance institutional prison priorities against opportunities for authentic and current learning experiences.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Demixing in a single-peak distributed polydisperse mixture of hard spheres
Creators: name: Cuesta, Jose A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An analytic derivation of the spinodal of a polydisperse mixture is presented. It holds for fluids whose excess free energy can be accurately described by a function of a few moments of the size distribution. It is shown that one such mixture of hard spheres in the Percus-Yevick approximation never demixes, despite its size distribution. In the Boublik-Mansoori-Carnahan-Starling-Leland approximation, though, it demixes for a sufficiently wide log-normal size distribution. The importance of this result is twofold: first, this distribution is unimodal, and yet it phase separates; and second, log-normal size distributions appear in many experimental contexts. The same phenomenon is shown to occur for the fluid of parallel hard cubes.
description: 4 pages, 2 figures, needs revtex, multicol, epsfig and amstex style files
Solid Soft Theorems
Creators: name: Pajer, Enrico
name: Jazayeri, Sadra
name: van der Woude, Drian
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive cosmological soft theorems for solids coupled to gravity. To this end, we first derive all cosmological adiabatic modes for solids, which display the interesting novelty of non-vanishing anisotropic stresses on large scales. Then, from the corresponding symmetries of the action of perturbations we compute the leading order related soft theorems using the operator product expansion. For the scalar bispectrum, we re-derive the result that Maldacena's consistency relation is recovered only upon angular averaging over the long mode direction. In addition, we find theorems for soft tensor and vector perturbations. In passing, we also clarify the derivation of these soft theorems in gauges where no residual diffeomorphisms exist.
Η Πρακτική Άσκηση στο ΠΤΔΕ-ΕΚΠΑ κατά τη διάρκεια της πανδημίας του COVID-19: Απόψεις των φοιτητριών/-ών για τη συμβολή της συνεργασίας
Creators: name: Μπαμπάλης, Θωμάς Κ.
name: Μαλαφάντης, Κωνσταντίνος Δ.
name: Τσώλη, Κωνσταντίνα Λ.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: The purpose of this study was to explore undergraduate students’- candidate teachers’ views on cooperation’s contribution to the successful implementation of the Two-Weeks Teaching Practice that took place online in the Spring Semester of the academic year 2020-2021 due to the pandemic of COVID-19. The sample consisted of two hundred and eighty-nine (289) students of the Pedagogical Department of Primary Education of the National and Kapodistrian University of Athens and the method applied was content analysis on students’ reflective diaries, which were developed based on Gibbs’ Reflective Cycle Model (1988). The results of the research clearly indicate that “cooperation” both between students as well as between students on the one hand and mentors and professors on the other functioned as a determinant in the implementation phase of the
Teaching Practice in all the axes of the cycle studied (i.e. description, evaluation, analysis, conclusion, feelings). “Cooperation” s’ value was also a basic tenet based on which the Teaching Practice Model of the same Department was developed and applied before the coronavirus outbreak.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Socioeconomic profile and study choice. The case of university students in Greece
Creators: name: Anastasiadou, Fotini
name: Kyridis, Argyris
name: Tourtouras, Christos D.
name: Zagkos, Christos
name: Pehlivanos, Eleni
Publisher: name: Academia
Year: 2021
Subjects: Study choice, Social mobility, Inequalities in Education, Higher Education, Educational capital

description: The aim of this research is to examine whether or not, and to what extent, the social status of university students influences their decision making or their preference concerning their choice of academic major. In order to attain this objective, the social characteristics of the students’ families have been taken into consideration, which, according to studies and experience, affect young people’s preferences and choices and make them choose different academic paths. The research sample consisted of 420 students from various Faculties of the Aristotle University of Thessaloniki. Results indicate that there is a close correlation between a student’s preference regarding their university choice, and their social and class background.
description: Academia, Αρ. 23-24 (2021)
MOESM1 of Bayesian mixture models and their Big Data implementations with application to invasive species presence-only data
Creators: name: Insha Ullah
name: Mengersen, Kerrie
Publisher: name: figshare
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: Additional file 1. Additional figures and tables presenting the results for the rest of the study period not shown in the main text.
Chrysophyllum eximium Ducke
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Sapotaceae
Chrysophyllum
Chrysophyllum eximium

description: [1601] Chrysophyllum eximium Ducke
 Bull. Mus. Natl. Hist. Nat., sér. 2, 4 (6): 744 (Ducke 1932). — Ecclinusa eximia (Ducke) Cronquist, Bull. Torrey Bot. Club 73 (3): 310 [June 1946] (Cronquist 1946).
 Chrysophyllum rufocupreum Ducke, Arch. Inst. Biol.Veg. 2 (1): 67 [Sep. 1935] (Ducke 1935). — Ecclinusa rufocuprea (Ducke) Cronquist, Bull. Torrey Bot. Club 73 (3): 311 [June 1946] (Cronquist 1946).
VERNACULAR NAMES. — Nt: busi apaa.
 HERBARIUM DATA (FG). — 9 collections at CAY. Sel. exs.: D. Sabatier & M.-F. Prévost 2568.
INVENTORY DATA (FG). — 107 trees in 30 plots; Fmax = 1.5 %; dbhinv = 66.3 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 686, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Selecting Democracy Indicators for the modern University
Creators: name: Papanikolaou, Vaia
name: Roussakis, Yiannis
name: Tzionas, Panagiotis
Publisher: name: Academia
Year: 2021
Subjects: Democratic indicators, university, Text Network analysis

description: The purpose of the proposed research is the application of suitable indicators, which measure the state of democracy, to the university field. Initially, an in-depth analysis of the features presented in six international organizations measuring democracy worldwide was performed. This revealed a sizeable set of significant and complementary indicators that constructed a conceptual framework for democratic institutions. Then, a model of the ‘democratic’ university was established with respect to its mission, operations and interactions, comprising a set of democratic characteristics. Interviews with academics from several European countries helped select those primary democracy indicators that can be best associated with the university characteristics. Interviews were analyzed using a Text Network Analysis algorithm, which represents texts as network graphs. Results show that monitoring these associations can reveal discrepancies and flaws that may degrade the university’s democratic operation and, also, helps to resolve conflicting demands when interacting with societal actors and the state. The size and variety of the examined datasets overcomes data bias, and the novelty of our approach lies in the fact that the graphical representations of the texts does not impose external semantic structures, thus avoiding subjectivity. This can have significant implications in assisting the complex policy formation processes within the university.
description: Academia, Αρ. 23-24 (2021)
Emergence of Maximal Symmetry
Creators: name: Csáki, Csaba
name: Ma, Teng
name: Shu, Jing
name: Yu, Jiang-Hao
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An emergent global symmetry of the composite sector (called maximal symmetry) can soften the ultraviolet behavior of the Higgs potential and also significantly modify its structure. We explain the conditions for the emergence of maximal symmetry as well as its main consequences. We present two simple implementations and generalize both to N-site as well as full warped extra dimensional models. The gauge symmetry of these models enforces the emergence of maximal symmetry. The corresponding Higgs potentials have unique properties: one case minimizes the tuning while the other allows heavy top partners evading direct LHC bounds.
description: 9 pages + appendices, 5 figures
Vortex lattice structures and pairing symmetry in Sr2RuO4
Creators: name: Agterberg, D. F.
name: Heeb, R.
name: Kealey, P. G.
name: Riseman, T. M.
name: Forgan, E. M.
name: Mackenzie, A. P.
name: Galvin, L. M.
name: Perry, R. S.
name: Lee, S. L.
name: Paul, D. McK.
name: Cubitt, R.
name: Mao, Z. Q.
name: Akima, S.
name: Maeno, Y.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experimental results indicate that superconductivity in Sr2RuO4 is described by the p-wave E_u representation of the D_{4h} point group. Results on the vortex lattice structures for this representation are presented. The theoretical results are compared with experiment.
description: 4 pages, 3 figures, M2S-HTSC-VI proceedings
Οι γυναίκες στη Διοίκηση Σχολικών Μονάδων
Creators: name: Λαμπάκη, Ολυμπία
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: The aim of this research was to investigate the perceptions of teachers of the Secondary Education regarding the role of women in school management. The initial design included a random sample of thirty teachers of both sexes, from all types of schools - urban, provincial, day, evening,  Gymnasiums and Lyceums. However, a fact that is recorded in the limitations of the research, only thirteen teachers responded positively to the present research, due to the fact that their opinion was requested during the summer vacation. Regarding the data collection tool, the semi-structured interview was chosen to better capture the data related to personal views and attitudes. The interview questions were fabricated using a digital tool, a Google form, and emailed to the interviewees. The answers were coded by the method of content analysis, in particular by the method of “path analysis” in five axes: effectiveness, inhibitory factors, preference of existing ones, knowledge, social skills. The analysis of the interviews reveled that all respondents believe that effective governance can be achieved equally by both sexes; however, differences were recorded in
questions related to the concept of the administrative work.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Biorefinery activities in Germany
Creators: name: Ritcher, Klaus
name: Held, Matthías
Publisher: name: Galician Agency for Forest-based Industry (XERA)
Year: 2024
Subjects: subject: biorefinery
subject: lignin
subject: hardwoods
subject: Biomaterials
subject: Forestry
subject: Bioeconomy

description: Contents:

Lignocellulose biorefinery

UPM product portfolio

Site development Leuna

Mercer Lignin Center

Presentation at the international symposium 'Native hardwoods: the resilience of the forest sector?' hosted by Galician Agency for Forest-based Industry · XERA · Xunta de Galicia in Lugo, Spain on Feb 28 to March 1, 2024 in the framework of the regional ‘Project for Valorizing the Timber of Native Harwoods in Galicia’ and the European project ‘RESONATE ‘Resilient forest value chains – enhancing resilience through natural and socio-economic responses’, funded by Horizon Europe
Ανασκοπώντας το ηγετικό παράδειγμα για τη βελτίωση του σχολείου
Creators: name: Κατσιγιάννη, Ελένη Α.
name: Υφαντή, Αμαλία Α.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: The aim of this study was to provide evidence on effective leadership and its impact on school improvement by exploring the international discourse in the field. For this purpose, a literature review on the topic was conducted. Based on the review of the secondary sources, the following findings can be drawn. The critical feature in differentiating leadership from administration and management is that leadership involves a process of influence over the members of the school organization, which aims at the achievement of the school vision. Leadership is one of the factors which contribute to school improvement by having indirect effect on conditions that influence students’ performance. Moreover, the literature review revealed leadership practices that are deemed to be effective, which, however, are related to school leaders’ ability to successfully combine these practices as well as to their flexibility to shift between different leadership models in accordance to the school context.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Academics’ Self-Assessment Regarding the Mastery of the Academic Profession Competencies
Creators: name: Turk, Marko
Publisher: name: Academia
Year: 2021
Subjects: Academic profession; competencies; Croatian academics; self-assessment; mastery of the academic profession competencies

description: The academic profession is faced with many changes and challenges in the social context, which are related to the requirements for (re)defining the existing and introducing new competencies. The main aim of the research presented in this paper is to examine the participants’ self-assessments regarding the mastery of the academic profession competencies at the beginning of senior academic career. The research method applied in this research was an online survey, and the research instrument used was a survey questionnaire. The data was analysed with the use of the Statistical Package IBM SPSS Statistics 20.0. The research was conducted on a sample of 1130 research participants (682 senior academics and 448 junior academics) from seven public universities in Croatia. The evaluation scale contained 45 items - academic profession competencies. Research results have shown that four of the main five competencies in terms of the self-assessment regarding the mastery level are from the group of general academic competencies which are not related to the traditional academic activities - teaching or research. Research participants assessed that the competencies they have mastered the least, are the ones related to universities’ third mission and leadership activities.
description: Academia, Αρ. 23-24 (2021)
Η αξιοποίηση της δημιουργικής γραφής και της νέας κειμενικότητας στη διδασκαλία της Ιλιάδας
Creators: name: Διακοσάββα, Εμμανουέλα
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2021

description: In modern education, creative writing is a valuable educational method with multiple cognitive, pedagogical, mental and communicative benefits. This article begins with a brief presentation of the principles of creative writing, emphasizes in the findings of modern Text-linguistics on new genres, reconsiders the forms of narration due to new educational and communicative technology and revaluates the targeting of the course of Ancient Greek texts translated into modern Greek. According to these, comes a teaching proposal of making good use of creative writing in the course of Iliad, which students can apply for approaching the epic poem in a recreational and joyful way, free their imagination, perceive the meaning of an ancient text in modern terms, form their own texts and merge new values into traditional ones.
description: Παιδαγωγική Επιθεώρηση, Vol. 70 (2020)
Linear systems with adiabatic fluctuations
Creators: name: Banik, S. K.
name: Ray, D. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a dynamical system subjected to weak but adiabatically slow fluctuations of external origin. Based on the ``adiabatic following'' approximation we carry out an expansion in α/|μ|, where αis the strength of fluctuations and 1/|μ| refers to the time scale of evolution of the unperturbed system to obtain a linear differential equation for the average solution. The theory is applied to the problems of a damped harmonic oscillator and diffusion in a turbulent fluid. The result is the realization of `renormalized' diffusion constant or damping constant for the respective problems. The applicability of the method has been critically analyzed.
description: Plain Latex, no figure, 21 pages