cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Ο ρόλος των ΤΠΕ ως εκπαιδευτικό εργαλείο στην Ειδική Αγωγή
title: The role of ICT as an educational tool in Special Education
titleType: AlternativeTitle
Creators: name: Πουγκιάλης, Νικόλαος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Εφαρμογές ΤΠΕ
Συμπερίληψη

description: Οι Τεχνολογίες της Πληροφορίας και των Επικοινωνιών (ΤΠΕ) μπορούν να διαδραματίσουν σημαντικό ρόλο ως εκπαιδευτικό εργαλείο και κατ’αυτόν τον τρόπο να υποστηρίξουν και να βελτιώσουν την εκπαιδευτική διαδικασία στην Ειδική Αγωγή. Κάνουν δηλαδή όλο το εκπαιδευτικό υλικό εύκολα προσβάσιμο και επομένως θεωρούνται ως φορέας ένταξης. Ως φορέας ένταξης ωστόσο θεωρούνται και οι Εικαστικές Τέχνες, οι οποίες συνεργαζόμενες με τις ΤΠΕ προσφέροντας στους μαθητές ΑμεΑ υπέρβαση των δυσκολιών και την κατάκτηση νέων δεξιοτήτων. Η ανάδειξη του ρόλου που δύνανται να διαδραματίσουν οι ΤΠΕ και η σύζευξη των ΤΠΕ και των Εικαστικών Τεχνών για τη βελτίωση της εκπαιδευτικής διαδικασίας των μαθητών Α-μεΑ και τη διασφάλιση της πρόσβασης στη γνώση για όλους. Δεδομένου ότι η τεχνολογία, προσφέρει προσαρμοσμένες λύσεις που ανταποκρίνονται στις ανάγκες των μαθητών με ειδικές εκπαιδευτικές ανάγκες, ενισχύεται η ευκαιρία τους για εκπαίδευση και ανάπτυξη. Μέθοδος: Η παρούσα εργασία θα πραγματοποιηθεί μέσα από βιβλιογραφική έρευνα επικεντρώνοντας στην εξέταση του πώς οι (ΤΠΕ) συμβάλλουν στην εκπαιδευτική διαδικασία στον το-μέα της Ειδικής Αγωγής. Έπειτα από την ανάλυση του κατάλληλου υλικού γύρω από τα τεχνολογικά μέσα που βοηθούν την εκπαιδευτική διαδικασία, παρουσιάζονται οι δυνατό-τητες που προσφέρουν τόσο τα διάφορα τεχνολογικά μέσα όσο και η σύζευξη των ΤΠΕ με τις Εικαστικές Τέχνες. Στο πλαίσιο της παρούσας επιλέχθηκε να αναπτυχθεί πρότζεκτ το οποίο θα εμπεριέχεται η εν λόγω σύζευξη, δηλαδή η δημιουργία ενός ψηφιακού πρό-τζεκτ. Αποτελέσματα: Ο συνδυασμός των ΤΠΕ και των Εικαστικών Τεχνών για τη δημιουργία των ψηφιακών έργων, αποτέλεσαν εναλλακτικές διδακτικές μεθόδους τις οποίες απολαμβάνουν οι μαθητές. Το ψηφιακό πρότζεκτ αξιολογήθηκε λαμβάνοντας υπόψη τη δημιουργικότητα και την τεχνική εκτέλεση, το περιεχόμενο και το μήνυμα των έργων, τη συνεργασία και την επι-κοινωνία, την εκπαιδευτική αξία καθώς και την ανταπόκριση του κοινού. Συμπεράσματα: Η δημιουργία των ψηφιακών έργων των μαθητών αποτέλεσε μια επιτυχημένη εμπειρία για τους μαθητές και είχε πολλά θετικά αποτελέσματα. Η συνδυασμένη χρήση των (ΤΠΕ) με τις εικαστικές τέχνες επέτρεψε στους μαθητές να εκφραστούν δημιουργικά και να προ-ωθήσουν αντιπολεμικά μηνύματα με έναν νέο, σύγχρονο τρόπο. Ενισχύθηκαν οι δεξιότητες των μαθητών στον τομέα της ψηφιακής τέχνης.
Magnetic-field oscillation model of pulsar radio emission: prediction of an observable effect
Creators: name: Liang, Zhu-Xing
name: Liang, Yi
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Since the discovery of pulsars, the rotating-lighthouse model has been the choice of model to explain the radiation pulsation of pulsars. After discovering that some main sequence stars (e.g., CU Virginis) and ultracool dwarfs (e.g., TVLM 513-46546) also behave like pulsars, the lighthouse model was again adopted to explain their pulse signals. Our research found that if we use the magnetic-field oscillation (MO) model, we can explain the pulse radiation results better regardless of whether its source is a neutron star, a main-sequence star or an ultracool dwarf. We propose a verifiable prediction that can be used to evaluate the MO model. Our prediction is that there is a 90 degree phase lag between the magnetic field and radio signal of TVLM 513-46546, and the zero-crossing point of the magnetic field is the moment when the direction of the light's circular polarization is reversed. No new observations are needed to check this prediction, but certain existing data needs to be re-mined.
description: 8 pages, 4 figures, accepted for publication in MNRAS
Opening Up the Black Box: Why We Need a PBL “TalkBank”
Creators: name: Koschmann, Timothy
name: Macwhinney, Brian
Publisher: name: Carnegie Mellon University
Year: 2001
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: A proposal is offered for a new initiative in medical education research, one focused on documenting the range of practices employed in different implementations of problem-based learning (PBL). A vital facet of this initiative would be the development of a shared corpus of video recordings referred to here as the "PBL TalkBank."
Additional file 1 of Evaluation of statistical approaches for association testing in noisy drug screening data
Creators: name: Smirnov, Petr
name: Smith, Ian
name: Safikhani, Zhaleh
name: Ba-alawi, Wail
name: Khodakarami, Farnoosh
name: Lin, Eva
name: Yu, Yihong
name: Martin, Scott
name: Ortmann, Janosch
name: Aittokallio, Tero
name: Hafner, Marc
name: Haibe-Kains, Benjamin
Publisher: name: figshare
Year: 2022
Subjects: subject: Statistics
subject: FOS: Mathematics

description: Additional file 1. Supplementary Figures S1–S5.
Wave function as geometric entity
Creators: name: Lev, B. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new approach to the geometrization of the electron theory is proposed. The particle wave function is represented by a geometric entity, i.e., Clifford number, with the translation rules possessing the structure of Dirac equation for any manifold. A solution of this equation is obtained in terms of geometric treatment. Interference of electrons whose wave functions are represented by geometric entities is considered. New experiments concerning the geometric nature of electrons are proposed.
Cissidium lawrencei Darby 2020, sp. nov.
Creators: name: Darby, Michael
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptiliidae
Cissidium
Cissidium lawrencei

description: Cissidium lawrencei sp. nov.
urn:lsid:zoobank.org:act: 58D7A1B0-57CC-4386-8C00-D528528BB002
Fig. 31
Etymology
Johnson ms name, in recognition of the collector, Dr Peter N. Lawrence, specialist in Collembola, and outstanding collector of many new ptiliids in the Solomon Islands.
Material examined
Holotype SOLOMON ISLANDS • ♂; Guadalcanal, Mt. Gallego; 2500 ft a.s.l.; 12 Jul. 1965; ridge forest litter; no. 101-130; P. N. Lawrence leg.; BMNH.
Paratypes SOLOMON ISLANDS • 1 ♀; same collection data as for holotype; MMUE • 1 ♀; Mt. Jonapau; 3500– 3750 ft a.s.l.; 6 May 1965; no. 18302; P. Greenslade leg.; BMNH • 1 ♂; Guadalcanal, Popomanasiu; 4500 ft a.s.l.; x.1965, no. 20508, P. Greenslade leg.; MMUE • 1 ♀; San Cristoval, 4 miles up Warahito from R. Pagato; 4 Aug. 1965; forest litter; Isiah and Leone leg.; BMNH • 1 ♀; Guadalcanal, Tambalase; 4 Sep. 1965; 1500 ft a.s.l.; dry ridge litter; P.N. Lawrence leg.; BMNH • 1 ♂; Guadalcanal, Mt Austen; 21 Sep. 1965; litter; P. Greenslade leg.; MMUE.
Description
SIZE. Habitus (Fig. 31A), length 0.59 mm.
COLOUR. Yellow brown, pubescence and antennomeres slightly paler.
HEAD. With several shallow foveae not forming a distinct linear depression behind the eyes, width across eyes 0.20mm; antennomeres III–XI length 0.36 mm; mentum sides narrowed to base.
PRONOTUM. Length 0.17 mm, width 0.25 mm, base with a series of four foveae on each side, separated medially, smaller foveae anterior to these on the disc; sides rounded, slightly concave posteriad before rectangular hind angles, sides bordered, the border continuing along the entire length of the posterior margin including the emargination opposite the scutellum, as a thin incised line (Fig. 31B).
ELYTRA. Length 0.38 mm, breadth 0.33 mm, basal third strongly foveolate.
MESOVENTRITE. Median process of collar pointed; mid-keel widest anteriorly, sides straight to posterior rounded angles which do not reach mesocoxae, mid-keel raised before junction with keel; keel with ± three setae, narrow, parallel, terminating between the mesocoxae; mesoventral lateral margins obtusely angled before one or two shallow serrations before mesocoxae (Fig. 31C).
METAVENTRITE. Length 0.13 mm, pubescence very sparse almost entirely confined to lateral borders, width across spines 0.08 mm, disc simple in male, with a distinct medial fovea posteriad to mesocoxae in female as Fig. 7C.
GENITALIA. Male aedeagus as Fig. 6L. Female spermatheca globular.
Remarks
Distinguished from all other species of this group in the Solomon Islands by the rounded lateral margins of the pronotum.
description: Published as part of Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, pp. 1-188 in European Journal of Taxonomy 622 on pages 49-50, DOI: 10.5852/ejt.2020.622, http://zenodo.org/record/3777282
Study of continuous-time quantum walks on quotient graphs via quantum probability theory
Creators: name: Salimi, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the present paper, we study the continuous-time quantum walk on quotient graphs. On such graphs, there is a straightforward reduction of problem to a subspace that can be considerably smaller than the original one. Along the lines of reductions, by using the idea of calculation of the probability amplitudes for continuous-time quantum walk in terms of the spectral distribution associated with the adjacency matrix of graphs [Jafarizadeh and Salimi (Ann. Phys 322(2007))], we show the continuous-time quantum walk on original graph $Γ$ induces a continuous-time quantum walk on quotient graph $Γ_H$. Finally, for example we investigate continuous-time quantum walk on some quotient Cayley graphs.
description: 18 pages, 4 figures
Coherent manipulation of nuclear spins in the strong driving regime
Creators: name: Yudilevich, Dan
name: Salhov, Alon
name: Schaefer, Ido
name: Herb, Konstantin
name: Retzker, Alex
name: Finkler, Amit
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: strong driving
subject: nuclear spins
subject: rotating wave approximation
subject: nitrogen vacancy center in diamond
subject: Rabi oscillations
subject: antenna
subject: resonator
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Spin-based quantum information processing makes extensive use of spin-state manipulation. This ranges from dynamical decoupling of nuclear spins in quantum sensing experiments to applying logical gates on qubits in a quantum processor. Fast manipulation of spin states is highly desirable for accelerating experiments, enhancing sensitivity, and applying elaborate pulse sequences. Strong driving using intense radio-frequency (RF) fields can, therefore, facilitate fast manipulation and enable broadband excitation of spin species. In this work, we present an antenna for strong driving in quantum sensing experiments and theoretically address challenges of the strong driving regime. First, we designed and implemented a micron-scale planar spiral RF antenna capable of delivering intense fields to a sample. The planar antenna is tailored for quantum sensing experiments using the diamond's nitrogen-vacancy (NV) center and should be applicable to other solid-state defects. The antenna has a broad bandwidth of 22 MHz, is compatible with scanning probes, and is suitable for cryogenic and ultrahigh vacuum conditions. We measure the magnetic field induced by the antenna and estimate a field-to-current ratio of 113 +/- 16 G/A, representing a six-fold increase in efficiency compared to the state-of-the-art, crucial for cryogenic experiments. We demonstrate the antenna by driving Rabi oscillations in 1H spins of an organic sample on the diamond surface and measure 1H Rabi frequencies of over 500 kHz, i.e. pi -pulses shorter than 1 mu s -an order of magnitude faster than previously reported in NV-based nuclear magnetic resonance (NMR). Finally, we discuss the implications of driving spins with a field tilted from the transverse plane in a regime where the driving amplitude is comparable to the spin-state splitting, such that the rotating wave approximation does not describe the dynamics well. We present a simple recipe to optimize pulse fidelity in this regime based on a phase and offset-shifted sine drive, which may be optimized in situ without numerical optimization procedures or precise modeling of the experiment. We consider this approach in a range of driving amplitudes and show that it is particularly efficient in the case of a tilted driving field. The results presented here constitute a foundation for implementing fast nuclear spin control in various systems.
One-Shot Learning with Bayesian Networks
Creators: name: Maas, Andrew
name: Kemp, Charles
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Humans often make accurate inferences given a single exposure to a novel situation. Some of these inferences can be achieved by discovering and using near-deterministic relationships between attributes. Approaches based on Bayesian networks are good at discovering and using soft probabilistic relationships between attributes, but typically fail to identify and exploit near-deterministic relationships. Here we develop a Bayesian network approach that overcomes this limitation by learning a hyperparameter for each distribution in the network that specifies whether it is non-deterministic or near-deterministic. We apply our approach to one-shot learning problems based on a real-world database of immigration records, and show that it outperforms a more standard Bayesian network approach.
On the control of automatic processes : a parallel distributed processing model of the Stroop effect
Creators: name: Cohen, Jonathan
name: Dunbar, Kevin
name: McClelland, James L.
name: Artificial Intelligence And Psychology Project.
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Abstract: "A growing body of evidence suggests that traditional views of automaticity are in need of revision. For example, automaticity has often been treated as an all-or-none phenomenon, and traditional theories have held that automatic processes are independent of attention. Yet recent empirical data suggest that automatic processes are continuous, and furthermore are subject to attentional control. In this paper we present a model of attention which addresses these issues. Using a parallel distributed processing framework we propose that the attributes of automaticity depend upon the strength of a process and that strength increases with training. Using the Stroop effect as an example, we show how automatic processes are continuous and emerge gradually with practice.Specifically, we present a computational model of the Stroop task which simulates the time course of processing as well as the effects of learning. This is done by combining the cascade mechanism described by McClelland (1979) with the backpropagation learning algorithm (Rumelhart, Hinton, & Williams, 1986). The model is able to simulate performance in the standard Stroop task, as well as aspects of performance in variants of this task which manipulate SOA, response set, and the number of competing words in the display. These simulations demonstrate that when two processes are in competition, the weaker process can take on several of the attributes that have previously been associated with controlled processing: susceptibility to interference and a requirement for the allocation of attention. This suggests that the traditional distinction between controlled and automatic processing is in need of reconsideration."
CAPACITY ANALYSIS OF 5G DENSE NETWORKS WITH MILLIMETER-WAVE SYSTEMS
Creators: name: ADDIS GOSHE MIRETU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The fifth generation (5G) network needs to evolve in order to increase the capacity 1000 times higher than the fourth generation of networks by 2025. Small cells (Dense Nets), millimeter wave (mmW) and massive multiple-input multiple output(MIMO) deployment have emerged as key technologies for mobile systems in fifth generation (5G).However, less study have been done on combining the three technologies into the existing systems. In this paper, we provide an in-depth capacity analysis for the integrated Dense Nets mmW systems. First, small cells are deployed on the top of single macro cell scenario for enhance the capacity. Instead, by extending the blockage models; a simpler mmW channel is implemented. It turns out that mmW signals are responsive to blockage, leading the LOS and NLOS conditions to have very different PL rules. In addition, they divide the power research into low signal-to-noise (SNR) and high SNR regimes based on dominant signal-to-interference factors plus the noise ratio. In noise-dominated (high-SNR regime), the capacity analysis is derived by simplest assumptions of Shannon Hartley theorems. Our results show that, under NLOS and LOS scenario, mmW frequency and distance between UE and BS decreases logarithmically for system capacity. In addition, the results show that densification is also essential to allow channel capacity through MIMO and increase the SNR in the term of through the antennas. Finally, the results of the computer simulation validate the theoretical analysis and show that the integrated Dense Nets mmW systems can achieve significant capacity improvement.
A representative of $RΓ(N,T)$ for higher dimensional twists of $\mathbb Z_p^r(1)$
Creators: name: Cobbe, Alessandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11Y40

description: Let $N/K$ be a Galois extension of $p$-adic number fields and let $V$ be a $p$-adic representation of the absolute Galois group $G_K$ of $K$. The equivariant local $ε$-constant conjecture $C_{EP}^{na}(N/K, V)$ is related to the compatibility of the equivariant Tamagawa number conjecture with the functional equation of Artin $L$-functions and it can be formulated as the vanishing of a certain element $R_{N/K}$ in $K_0(\mathbb Z_p[G],\mathbb Q_p^c[G])$. One of the main technical difficulties in the computation of $R_{N/K}$ arises from the so-called cohomological term $C_{N/K}$, which requires the construction of a bounded complex $C_{N,T}^\bullet$ of cohomologically trivial modules which represents $RΓ(N,T)$ for a full $G_K$-stable $\mathbb Z_p$-sublattice $T$ of $V$. In this paper we generalize the construction of $C_{N,T}^\bullet$ in Thm. 2 of arXiv:1602.07858 to the case of a higher dimensional $T$.
description: 22 pages
Ist die Vollkommenheit des einzelnen Menschen mit der eines Staates zu vergleichen?
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1800
Subjects: subject: 090

description: Vollkommenheitslehre; Zitat aus Plato, Politeia II.368.
Periodic cyclic homology of reductive p-adic groups
Creators: name: Solleveld, Maarten
Publisher: name: arXiv
Year: 2007
Subjects: subject: K-Theory and Homology (math.KT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20G25, 16E40

description: Let G be a reductive p-adic group, H(G) its Hecke algebra and S(G) its Schwartz algebra. We will show that these algebras have the same periodic cyclic homology. This might be used to provide an alternative proof of the Baum-Connes conjecture for G, modulo torsion. As preparation for our main theorem we prove two results that have independent interest. Firstly a general comparison theorem for the periodic cyclic homology of finite type algebras and certain Fréchet completions thereof. Secondly a refined form of the Langlands classification for G, which clarifies the relation between the smooth spectrum and the tempered spectrum.
description: Second version, 56 pages. Lemma 2.9 of the first version was incorrect, and has been replaced by Lemma 2.12. Several proofs have been written down more clearly
Cissidium logunovi Darby 2020, sp. nov.
Creators: name: Darby, Michael
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptiliidae
Cissidium
Cissidium logunovi

description: Cissidium logunovi sp. nov.
urn:lsid:zoobank.org:act: 122C9AE2-B006-44CB-950A-058A2A927799
Fig. 32
Etymology
I am pleased to be able to name this species after Dr Dmitri Logunov, Keeper of Entomology at the Manchester Museum, who has always been most helpful to me.
Material examined
Holotype NEPAL • Barahbise geg, Ting-Sang-La; H. Franz leg.; MMUE.
A fragment of a second specimen bearing this label, without head and pronotum, was also found in the collection.
Description
SIZE. Habitus (Fig. 32A), length 0.54 mm.
COLOUR. Yellow brown, pubescence, legs and antennae pale yellow.
HEAD. With shallow median depression between eyes, width across eyes 0.20 mm; mentum obscured; antennomeres III–XI, length 0.28 mm, III–IX length 0.16 mm, X–XI length 0.12 mm.
PRONOTUM. 0.19 mm long, 0.28 mm wide, with ± ten loosely formed fovea in basal half, some tending to join together; sides rounded, almost parallel sided to slightly acute hind angles, bordered, the borders not continuing along the posterior margin, medial emargination opposite the scutellum sinuate (Fig. 32B).
ELYTRA. 0.52 mm long, 0.40 mm wide, sparsely pubescent, foveolate, contrasting with the pronotum.
MESOVENTRITE. Medial extension of collar pointed; mid-keel posterior angles with carinae to mesocoxae, raised slightly medially before keel; keel parallel-sided then broadening to rounded spatulate termination between mesocoxae; mesoventral lateral margins serrate in posterior half; humeri rounded barely toothed (Fig. 32C).
METAVENTRITE. Sparsely pubescent, length 0.15 mm, disc simple, width across spines 0.14 mm; posterior margin of mesocoxae serrate.
WINGS. Apterous.
GENITALIA. Gender not known, specimen considered too fragile to risk dissection.
Remarks
This is the only species of Cissidium in this group recorded from Nepal.
description: Published as part of Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, pp. 1-188 in European Journal of Taxonomy 622 on pages 50-52, DOI: 10.5852/ejt.2020.622, http://zenodo.org/record/3777282
Shifting of the resonance location for planets embedded in circumstellar disks
Creators: name: Marzari, F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context: In the early evolution of a planetary system, a pair of planets may be captured in a mean motion resonance while still embedded in their nesting circumstellar disk. Aims: The goal is to estimate the direction and amount of shift in the semimajor axis of the resonance location due to the disk gravity as a function of the gas density and mass of the planets. The stability of the resonance lock when the disk dissipates is also tested. Methods: The orbital evolution of a large number of systems is numerically integrated within a three-body problem in which the disk potential is computed as a series of expansion. This is a good approximation, at least over a limited amount of time. Results: Two different resonances are studied: the 2:1 and the 3:2. In both cases the shift is inwards, even if by a different amount, when the planets are massive and carve a gap in the disk. For super--Earths, the shift is instead outwards. Different disk densities, Sigma, are considered and the resonance shift depends almost linearly on Sigma. The gas dissipation leads to destabilization of a significant number of resonant systems, in particular if it is fast. Conclusions: The presence of a massive circumstellar disk may significantly affect the resonant behavior of a pair of planets by shifting the resonant location and by decreasing the size of the stability region. The disk dissipation may explain some systems found close to a resonance but not locked in it.
description: Accepted for publication on A&A
Measuring redshift through X-ray spectroscopy of galaxy clusters: results from Chandra data and future prospects
Creators: name: Yu, Heng
name: Tozzi, Paolo
name: Borgani, Stefano
name: Rosati, Piero
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The ubiquitous presence of the Fe line complex in the X-ray spectra of galaxy clusters offers the possibility of measuring their redshift without resorting to spectroscopic follow-up observations. In this paper we assess the accuracy with which the redshift of galaxy clusters can be recovered from an X-ray spectral analysis of Chandra archival data. This study indicates a strategy to build large surveys of clusters whose identification and redshift measurement are both based on X-ray data alone. We apply a blind search for K--shell and L--shell Fe line complex in X-ray cluster spectra using Chandra archival observations of galaxy clusters. The Fe line in the ICM spectra can be detected by simply analyzing the C-statistics variation $ΔC_{stat}$ as a function of the redshift parameter. We repeat the measurement under different conditions, and compare the X-ray derived redshift $z_X$ with the one obtained by means of optical spectroscopy $z_o$. We explore how a number of priors on metallicity and luminosity can be effectively used to reduce catastrophic errors. The $ΔC_{stat}$ provides the most efficient means for discarding wrong redshift measures and to estimate the actual error on $z_X$. We identify a simple and efficient procedure for optimally measuring the redshifts from the X-ray spectral analysis of clusters of galaxies. When this procedure is applied to mock catalogs extracted from high sensitivity, wide-area cluster surveys, such as those proposed with Wide Field X-ray Telescope (WFXT) mission, it is possible to obtain a complete samples of X-ray clusters with reliable redshift measurements, thus avoiding time-consuming optical spectroscopic observations. This methodology will make it possible to trace cosmic growth by studying the evolution of the cluster mass function directly using X-ray data.
description: 13 pages,19 figures. Corrected typos. Published as: Astronomy & Astrophysics, 2011, vol. 529, A65
Localization problem of the quasiperiodic system with the spin orbit interaction
Creators: name: Kohmoto, Mahito
name: Tobe, Daijiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study one dimensional quasiperiodic system obtained from the tight-binding model on the square lattice in a uniform magnetic field with the spin orbit interaction. The phase diagram with respect to the Harper coupling and the Rashba coupling are proposed from a number of numerical studies including a multifractal analysis. There are four phases, I, II, III, and IV in this order from weak to strong Harper coupling. In the weak coupling phase I all the wave functions are extended, in the intermediate coupling phases II and III mobility edges exist, and accordingly both localized and extended wave functions exist, and in the strong Harper coupling phase IV all the wave functions are localized. Phase I and Phase IV are related by the duality, and phases II and III are related by the duality, as well. A localized wave function is related to an extended wave function by the duality, and vice versa. The boundary between phases II and III is the self-dual line on which all the wave functions are critical. In the present model the duality does not lead to pure spectra in contrast to the case of Harper equation.
description: 10 pages, 11 figures
Oculographic Analysis of Word Reading in Hemispatial Neglect
Creators: name: Behrmann, Marlene
name: S. E. Black
name: T. J. McKeeff
name: J. J. S. Barton
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Neglect dyslexia is a disorder in which individuals misread text appearing on the contralateral side of space following an acquired lesion, usually to the right parietal lobe. This disorder is generally attributed to an impairment in representing spatial information. To determine whether the spatial representations underlying reading differ from those mediating other forms of visual behavior, we investigated the cooccurrence of neglect dyslexia with that of neglect, which manifests on tasks such as line bisection or line cancellation. We also examined the correlation between neglect dyslexia, when present, and eye movements in order to characterize the neglect dyslexia disorder further. Whereas there is no clear relationship between the reading disorder and other symptoms of visuospatial neglect, suggesting segregated spatial representations, there is a direct correspondence between the oculomotor performance of patients with neglect dyslexia and their reading behavior. This latter result suggests that the reading deficit may well arise from the failure to register and perceive the contralesional information.
title: Διερεύνηση πιθανής αλληλεπίδρασης ανάμεσα στο χρηματοοικονομικό στρες και στην τιμή του bitcoin
title: An investigation of possible interaction between financial stress and bitcoin price
titleType: AlternativeTitle
Creators: name: Ευαγγέλου, Σταύρος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Κρυπτονομίσματα
subject: Χρηματοοικονομικό στρες
subject: COVID-19
subject: Bitcoin
subject: Αιτιότητα Granger
subject: Δείκτες χρηματοοικονομικής πίεσης
subject: Blockchain
subject: Συναίσθημα των επενδυτών
subject: Δομικές αλλαγές
subject: OFR FSI

description: Σε αυτή την εργασία εξετάζουμε τη σχέση μεταξύ του στρες των επενδυτών στην αγορά και των τιμών του Bitcoin εξετάζοντας τις πιθανές επιπτώσεις που μπορεί να προέκυψαν κατά την περίοδο της συνεχιζόμενης πανδημίας COVID-19 καθώς και μετά από αυτή. Τα στοιχεία μας είναι από 2 Ιανουαρίου του 2018 μέχρι της 28 Μαΐου 2023. Η ύπαρξη δομικών αλλαγών που υπάρχει στη χρονοσειρά για το πλήρες δείγμα αποκαλύπτει μια μη σταθερή αιτιότητα μεταξύ του συναισθήματος στρες και των τιμών του Bitcoin, η οποία μας οδηγεί να εφαρμόσουμε ένα τεστ αιτιότητας Granger κυλιόμενου παραθύρου εκκίνησης. Τα αποτελέσματά μας δείχνουν ότι τόσο οι αρνητικές όσο και οι θετικές αλληλεπιδράσεις μεταξύ του συναισθήματος φόβου και των τιμών του Bitcoin συμβαίνουν κατά τη διάρκεια πολλών υποπεριόδων. Η φύση αυτών των αλληλεπιδράσεων αλλάζει σημαντικά πριν, μετά και κατά τη διάρκεια της πανδημίας. Έτσι, συμβάλλουμε στην ταχέως αναπτυσσόμενη βιβλιογραφία σχετικά με τις οικονομικές επιπτώσεις της παγκόσμιας πανδημίας του COVID-19, καθώς και στη συζήτηση σχετικά με το αν θα ταξινομηθεί το Bitcoin ως νέο περιουσιακό στοιχείο, κερδοσκοπική επένδυση, νόμισμα ή ασφαλές καταφύγιο.
Structure of Node Polynomials for Curves on Surfaces
Creators: name: Qviller, Nikolay
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: Primary: 14N10. Secondary: 14C17, 05A18

description: We provide a structural generalization of a theorem by Kleiman--Piene, concerning the enumerative geometry of nodal curves in a complete linear system |L| on a smooth projective surface S. Provided that r, the number of nodes, is sufficiently small compared to the ampleness of the linear system, we show that, under certain assumptions, the number of r-nodal curves passing through points in general position on S is given by a Bell polynomial in universally defined integers a_i(S,L), which we identify, using classical intersection theory, as linear, integral polynomials evaluated in four basic Chern numbers. Furthermore, we provide a decomposition of the a_i as a sum of three terms with distinct geometric interpretations, and discuss the relationship between these polynomials and Kazarian's Thom polynomials for multisingularities of maps.
description: 30 pages. This is the pre-peer reviewed version of the following article: Math. Nachr. 287, No. 11-12, pp 1394-1420 (2014), which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/mana.201200265/abstract
POKs Based Secure and Energy-Efficient Access Control for Implantable Medical Devices
Creators: name: Fu, Chenglong
name: Du, Xiaojiang
name: Wu, Longfei
name: Zeng, Qiang
name: Mohamed, Amr
name: Guizani, Mohsen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Implantable medical devices (IMDs), such as pacemakers, implanted cardiac defibrillators, and neurostimulators are medical devices implanted into patients' bodies for monitoring physiological signals and performing medical treatments. Many IMDs have built-in wireless communication modules to facilitate data collecting and device reprogramming by external programmers. The wireless communication brings significant conveniences for advanced applications such as real-time and remote monitoring but also introduces the risk of unauthorized wireless access. The absence of effective access control mechanisms exposes patients' life to cyber attacks. In this paper, we present a lightweight and universally applicable access control system for IMDs. By leveraging Physically Obfuscated Keys (POKs) as the hardware root of trust, provable security is achieved based on standard cryptographic primitives while attaining high energy efficiency. In addition, barrier-free IMD access under emergent situations is realized by utilizing the patient's biometrical information. We evaluate our proposed scheme through extensive security analysis and a prototype implementation, which demonstrates our work's superiority on security and energy efficiency.
description: updated version, the version is published on SecureComm 2019
L'utilisation des balises dans une équipe Teams
Creators: name: Lemieux, Karine
Publisher: name: Université de Sherbrooke, Service de soutien à la formation
Year: 2021
Subjects: Microsoft Teams

description: Tutoriel qui explique pourquoi et comment utiliser des balises dans Teams afin de faciliter les communications.
description: Ressources éducatives libres

REL

Open Educational Resources

OER
Phase transitions on a ladder of braided non-Abelian anyons
Creators: name: Ayeni, Babatunde M.
name: Pfeifer, Robert N. C.
name: Brennen, Gavin K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Abelian anyons can exist as point-like particles in two-dimensional systems, and have particle exchange statistics which are neither bosonic nor fermionic. Like in spin systems, the role of fusion (Heisenberg-like) interactions between anyons has been well studied. However, unlike our understanding of the role of bosonic and fermionic statistics in the formation of different quantum phases of matter, little is known concerning the effect of non-Abelian anyonic statistics. We explore this physics using an anyonic Hubbard model on a two-legged ladder which includes braiding and nearest neighbour Heisenberg interactions among anyons. We study two of the most prominent non-Abelian anyon models: the Fibonacci and Ising type. We discover rich phase diagrams for both anyon models, and show the different roles of their fusion and braid statistics.
description: 14 pages (double-column) and 8 figures. This paper is the completion of Chapter 6 of my PhD thesis (arXiv:1708.06476), though now with a number of changes
title: 02_1882
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Quark-anti-quark potentials from Nambu-Bethe-Salpeter amplitudes on lattice
Creators: name: Ikeda, Yoichi
name: Iida, Hideaki
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Quark--anti-quark (anti-q-q) potentials with finite quark masses are studied from the anti-q-q Nambu-Bethe-Salpeter (NBS) wave functions in quenched lattice QCD. With the use of a method which has been recently developed in the derivation of nuclear forces from lattice QCD, we derive the anti-q-q potentials from the NBS wave functions. We calculate the anti-q-q NBS wave functions in pseudo-scalar and vector channels for several quark masses. The derived potentials at each quark mass in both channels show linear plus Coulomb form. We also discuss the quark-mass and channel dependence of the anti-q-q potentials.
description: 5 pages, 9 figues
Bio-economy products: alternative uses of shrubs (PA) - Bioeconomía: uso alternativo de los arbustos
Creators: name: Losada-Fernández E
name: Mosquera-Losada MR
name: Ferreiro-Domínguez N
name: Rodríguez-Rigueiro FJ
name: Santiago-Freijanes JJ
name: Villada A
name: Rigueiro-Rodríguez A
Publisher: name: Zenodo
Year: 2019
Subjects: Carbon
Nitrogen
windbreak
carbono
nitrógeno
cortavientos

description: Los arbustos son uno de los dos posibles tipos de componente leñoso de los sistemas agroforestales. Los arbustos pueden estar localizados en terrenos arables o como parte de setos en áreas silvoarables o en el medio de las parcelas como parte del alimento en las prácticas silvopastorales. La gestión de los setos de arbustos consume tiempo, pero ayuda a la reducción del efecto negativo del viento en las zonas de cultivos agrícolas a la vez que proporcionan productos generalmente asociados a la producción de biomasa que pueden ser empleados como combustible para calefacciones. Algunos animales pueden también consumir los arbustos durante los períodos de falta de pasto contribuyendo al aumento de la resiliencia de los sistemas ganaderos. Los arbustos pueden ser también empleados como fuente de nutrientes en el suelo. En Galicia, los arbustos leguminosos se sembraban de forma tradicional para incrementar la fertilidad del suelo, y, tras un procesado eran empleados como fertilizantes.
Molecular formations in ultracold mixtures of interacting and noninteracting atomic gases
Creators: name: Nishimura, T.
name: Matsumoto, A.
name: Yabu, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Atom-molecule equilibrium for molecular formation processes is discussed for boson-fermion, fermion-fermion, and boson-boson mixtures of ultracold atomic gases in the framework of quasichemical equilibrium theory. After presentation of the general formulation, zero-temperature phase diagrams of the atom-molecule equilibrium states are calculated analytically; molecular, mixed, and dissociated phases are shown to appear for the change of the binding energy of the molecules. The temperature dependences of the atom or molecule densities are calculated numerically, and finite-temperature phase structures are obtained of the atom-molecule equilibrium in the mixtures. The transition temperatures of the atom or molecule Bose-Einstein condensations are also evaluated from these results. Quantum-statistical deviations of the law of mass action in atom-molecule equilibrium, which should be satisfied in mixtures of classical Maxwell-Boltzmann gases, are calculated, and the difference in the different types of quantum-statistical effects is clarified. Mean-field calculations with interparticle interactions (atom-atom, atom-molecule, and molecule-molecule) are formulated, where interaction effects are found to give the linear density-dependent term in the effective molecular binding energies. This method is applied to calculations of zero-temperature phase diagrams, where new phases with coexisting local-equilibrium states are shown to appear in the case of strongly repulsive interactions.
description: 35 pages, 14 figures
Evaluating the Digitalization in the Healthcare Sector: A User-Based Analysis
Creators: name: Kus, Kevin
Publisher: name: Universität Osnabrück
Year: 2024
Subjects: subject: Digitalization
subject: Healthcare
subject: eHealth
subject: Design
subject: Digital Health Solutions
subject: User Adoption
subject: 330 - Wirtschaft
subject: 610 - Medizin, Gesundheit
subject: 004 - Informatik

description: The German healthcare system faces enormous challenges, resulting from demographic changes with an increased number of people in need of care and a shortage of healthcare professionals. Additionally, the COVID-19 pandemic has intensified the burden on healthcare systems, accelerating digitalization efforts. Digitalization in healthcare can play a major role to overcome the described challenges and to improve the quality of healthcare services. In this dissertation, several user groups for digital applications are considered, ranging from patients to healthcare service providers. The research aims to identify challenges in healthcare digitalization and to elaborate on strategies to overcome these hurdles by analyzing emerging eHealth technologies and business models as well as various eHealth applications, such as pandemic dashboards, the electronic health record and case management software. With the analyses of eHealth artifacts, design recommendations for increasing user acceptance are generated. The design-oriented analyses consider the potential of AI, interactive elements and the wide range of potential user groups. Furthermore, with respect to the stakeholders involved, economic benefits and synergies of digitalization measures are identified. Recognizing healthcare’s societal and economic significance, the study underscores the potential for digitalization to improve efficiency and resource savings, while acknowledging existing hurdles.
Research Video: Annotated Videos as a Tool for the Publication of Artistic Research
Creators: name: Lösel, Gunter
Publisher: name: Zenodo
Year: 2017
Subjects: Artistic Research
Video Annotation
Video

description: This article describes the use of annotated videos in artistic research, arguing that embodied knowledge and performative knowledge call for a temporal medium both for the analysis and the publication of results. The framework for the project "Research Video" is laid out and explained. The article shows different tools and annotation practices. It gives first insights into the development of the prototype for "Research Video".
description: + ID: 558812 + PeerReviewed: Peer Reviewed
Gaia Data Release 2: Kinematics of globular clusters and dwarf galaxies around the Milky Way
Creators: name: Gaia Collaboration
name: Helmi, A.
name: van Leeuwen, F.
name: McMillan, P. J.
name: Massari, D.
name: Antoja, T.
name: Robin, A.
name: Lindegren, L.
name: Bastian, U.
name: co-authors, 445
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The goal of this paper is to demonstrate the outstanding quality of the second data release of the Gaia mission and its power for constraining many different aspects of the dynamics of the satellites of the Milky Way. We focus here on determining the proper motions of 75 Galactic globular clusters, nine dwarf spheroidal galaxies, one ultra-faint system, and the Large and Small Magellanic Clouds. Using data extracted from the Gaia archive, we derived the proper motions and parallaxes for these systems, as well as their uncertainties. We demonstrate that the errors, statistical and systematic, are relatively well understood. We integrated the orbits of these objects in three different Galactic potentials, and characterised their properties. We present the derived proper motions, space velocities, and characteristic orbital parameters in various tables to facilitate their use by the astronomical community. Our limited and straightforward analyses have allowed us for example to (i) determine absolute and very precise proper motions for globular clusters; (ii) detect clear rotation signatures in the proper motions of at least five globular clusters; (iii) show that the satellites of the Milky Way are all on high-inclination orbits, but that they do not share a single plane of motion; (iv) derive a lower limit for the mass of the Milky Way of 9.8^{+6.7}_{-2.7} x 10^{11} Msun based on the assumption that the Leo I dwarf spheroidal is bound; (v) derive a rotation curve for the Large Magellanic Cloud based solely on proper motions that is competitive with line-of-sight velocity curves, now using many orders of magnitude more sources; and (vi) unveil the dynamical effect of the bar on the motions of stars in the Large Magellanic Cloud. All these results highlight the incredible power of the Gaia astrometric mission, and in particular of its second data release.
description: 49 pages, 35 figures, 9 tables. A&A Gaia DR2 Special Issue. Tables and additional visuals are available at http://www.astro.rug.nl/~ahelmi/research/dr2-dggc. This version includes the minor corrections implemented in the Erratum by Gaia Collaboration et al (2020), affecting Eqs.B.10 and B.21