cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effect of Technology-Infused Homework Practices on Homework Completion Rates
Creators: name: Filosa, E. Gerard
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Homework
subject: Homework completion
subject: Technology
subject: Technology-infused practices
subject: Secondary education
subject: Education -- Research papers (Graduate)

description: The purpose of this study is to determine the impact of homework practices (worksheets/paper & pen) on students’ poor homework habits in standard level Chemistry classes. The measurement tool was the students’ homework completion rates. The study involved a quasi-experimental design in which a control group received traditional homework assignments and the experimental group received the online homework assignments. The study spanned two units from the Baltimore County Public Schools (BCPS) Honors/Standard Chemistry Curriculum and lasted approximately seven weeks. The null hypothesis was supported. The results show that online homework practices did not lead to an increase in homework completion rates. Future research is recommended examining the impact technology-infused homework practices has on homework completion and performance among high school students.
5G New Radio Unlicensed: Challenges and Evaluation
Creators: name: Hirzallah, Mohammed
name: Krunz, Marwan
name: Kecicioglu, Balkan
name: Hamzeh, Belal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: To meet the high demand for mobile data, the Third Generation Partnership Project (3GPP) established a set of standards known as 5G New Radio (5G NR). The architecture of 5G NR includes a flexible radio access network and a core network. 3GPP has also been working on a new radio access technology, called 5G NR Unlicensed (5G NR-U), which aims at extending 5G NR to unlicensed bands. In this paper, we give an overview of the most recent 5G NR-U design elements and discuss potential concerns, including fair coexistence with other unlicensed technologies such as Wi-Fi. We use simulations to study coexistence between Wi-Fi and 5G NR-U systems. Our evaluation indicates that NR-U often achieves higher throughput and lower delay than Wi-Fi (802.11ac). The two systems experience different buffer occupancies and spectrum utilization statistics. We also discuss the improvements that NR-U offers over LTE Licensed Assisted Access (LTE-LAA).
description: in IEEE Transactions on Cognitive Communications and Networking, 2020
Prevalence of Tidal Interactions among Local Seyfert Galaxies
Creators: name: Kuo, Cheng-Yu
name: Lim, Jeremy
name: Tang, Ya-Wen
name: Ho, Paul T. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: No mechanisms have hitherto been conclusively demonstrated to be responsible for initiating optically-luminous nuclear (Seyfert) activity in local disk galaxies. Only a small minority of such galaxies are visibly disturbed in optical starlight, with the observed disturbances being at best marginally stronger than those found in matched samples of inactive galaxies. Here, we report the first systematic study of an optically-selected sample of twenty-three active galaxies in atomic hydrogen (HI) gas, which is the most sensitive and enduring tracer known of tidal interactions. Eighteen of these galaxies are (generally) classified as Seyferts, with over half (and perhaps all) having [OIII] luminosities within two orders of magnitude of Quasi-Stellar Objects. Only ~28% of these Seyfert galaxies are visibly disturbed in optical DSS2 images. By contrast, ~94% of the same galaxies are disturbed in HI, in nearly all cases not just spatially but also kinematically on galactic (>~20 kpc) scales. In at least ~67% and perhaps up to ~94% of cases, the observed HI disturbances can be traced to tidal interactions with neighboring galaxies detected also in HI. The majority of these neighboring galaxies have projected separations of
description: 64 pages, 44 figures, accepted for publication in ApJ. Changes: Nothing is changed except that the paper was compiled differently to reduce the number of pages. To be friendly to the Earth forest, you could also choose to only print the text part of the paper and view images on line. (see http://www.astro.virginia.edu/~ck2v/paper/)
Classification of firing pin impressions using HOG‐SVM
Creators: name: wen, zhijian
name: Curran, James M.
name: Harbison, SallyAnn
name: Wevers, Gerhard E.
Publisher: name: Institute of Environmental Science and Research
Year: 2024
Subjects: classificationCode: 350305
subject: Forensic intelligence

description: Crimes, such as robbery and murder, often involve firearms. In order to assist with the investigation into the crime, firearm examiners are asked to determine whether cartridge cases found at a crime scene had been fired from a suspect's firearm. This examination is based on a comparison of the marks left on the surfaces of cartridge cases. Firing pin impressions can be one of the most commonly used of these marks. In this study, a total of nine Ruger model 10/22 semiautomatic rifles were used. Fifty cartridges were fired from each rifle. The cartridge cases were collected, and each firing pin impression was then cast and photographed using a comparison microscope. In this paper, we will describe how one may use a computer vision algorithm, the Histogram of Orientated Gradient (HOG), and a machine learning method, Support Vector Machines (SVMs), to classify images of firing pin impressions. Our method achieved a reasonably high accuracy at 93%. This can be used to associate a firearm with a cartridge case recovered from a scene. We also compared our method with other feature extraction algorithms. The comparison results showed that the HOGSVM method had the highest performance in this classification task.
Deconstructing higher order clockwork gravity
Creators: name: Avgoustidis, Anastasios
name: Niedermann, Florian
name: Padilla, Antonio
name: Saffin, Paul M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the higher order clockwork theory of gravitational interactions, whereby a number of gravitons are coupled together with TeV strength, but nevertheless generate a Planck scale coupling to matter without the need for a dilaton. It is shown that the framework naturally lends itself to a five-dimensional geometry, and we find the 5D continuum version of such deconstructed 4D gravitational clockwork models. Moreover, the clockwork picture has matter coupled to particular gravitons, which in the 5D framework looks like a braneworld model, with the Randall-Sundrum model being a special case. More generally, the gravitational clockwork leads to a family of scalar-tensor braneworld models, where the scalar is not a dilaton.
description: 6 pages
Spin-Hall interface resistance in terms of Landauer type spin dipoles
Creators: name: Mal'shukov, A. G.
name: Wang, L. Y.
name: Chu, C. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We considered the nonequlibrium spin dipoles induced around spin independent elastic scatterers by the intrinsic spin-Hall effect associated with the Rashba spin-orbit coupling. The normal to 2DEG spin polarization has been calculated in the diffusion range around the scatterer. We found that although around each impurity this polarization is finite, the corresponding macroscopic spin density, obtained via averaging of individual spin dipole distributions over impurity positions is zero in the bulk. At the same time, the spin density is finite near the boundary of 2DEG, except for a special case of a hard wall boundary. The boundary value of the spin polarization can be associated with the interface spin-Hall resistance determining the additional energy dissipation due to spin accumulation.
description: 7 pages
PbMnTeO6: a chiral quasi 2D magnet with all cations in octahedral coordination and the space group problem of trigonal layered A2+Mn4+TeO6
Creators: name: Kuchugura, Mariia D.
name: Kurbakov, Alexander I.
name: Zvereva, Elena A.
name: Vasilchikova, Tatyana M.
name: Raganyan, Grigory V.
name: Vasiliev, Alexander N.
name: Barchuk, Victor A.
name: Nalbandyan, Vladimir B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Antiferromagnetic PbMnTeO6, also known as mineral kuranakhite, has been reported recently to have all three cations in trigonal prismatic coordination, which is extremely unusual for both Mn(4+) and Te(6+). In this work, the phase was reproduced with the same lattice parameters and Néel temperature TN = 20 K. However, powder neutron diffraction unambiguously determined octahedral (trigonal antiprismatic) coordination for all cations within the chiral space group P312. The same symmetry was proposed for SrMnTeO6 and PbGeTeO6, instead of the reported space groups P-62m and P31m, respectively. PbMnTeO6 was found to be a robust antiferromagnet with an assumingly substantial scale of exchange interactions since the Neel temperature did not show any changes in external magnetic fields up to 7 T. The determined effective magnetic moment meff = 3.78 mB was in excellent agreement with the numerical estimation using the effective g-factor g = 1.95 directly measured here by electron spin resonance (ESR). Both specific heat and ESR data indicated the two-dimensional character of magnetism in the compound under study. The combination of chirality with magnetic order makes PbMnTeO6 a promising material with possible multiferroic properties.
An extensive comparison of anisotropies in MBE grown (Ga,Mn)As material
Creators: name: Gould, C.
name: Mark, S.
name: Pappert, K.
name: Dengel, G.
name: Wenisch, J.
name: Campion, R. P.
name: Rushforth, A. W.
name: Chiba, D.
name: Li, Z.
name: Liu, X.
name: Van Roy, W.
name: Ohno, H.
name: Furdyna, J. K.
name: Gallagher, B.
name: Brunner, K.
name: Schmidt, G.
name: Molenkamp, L. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This paper reports on a detailed magnetotransport investigation of the magnetic anisotropies of (Ga,Mn)As layers produced by various sources worldwide. Using anisotropy fingerprints to identify contributions of the various higher order anisotropy terms, we show that the presence of both a [100] and a [110] uniaxial anisotropy in addition to the primary ([100] + [010]) anisotropy is common to all medium doped (Ga,Mn)As layers typically used in transport measurement, with the amplitude of these uniaxial terms being characteristic of the individual layers.
Στρατηγικές μάρκετινγκ σε περιόδους κρίσης στον τουρισμό. Μελέτη περίπτωσης ο ξενοδοχειακός κλάδος στην Ελλάδα την εποχή του Covid-19
Creators: name: Νέου, Δέσποινα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Στρατηγική μάρκετινγκ
subject: Μάρκετινγκ
subject: Κρίση
subject: Τουρισμός
subject: Υγειονομική κρίση
subject: Ξενοδοχειακός κλάδος

description: Ο τουρισμός αποτελώντας έναν από τους βασικότερους πυλώνες της ελληνικής, αλλά και της παγκόσμιας οικονομίας, έχει κληθεί κατά καιρούς να αντιμετωπίσει περιπτώσεις κρίσεων, οι οποίες έχουν άμεσο αντίκτυπο και τον καθιστούν ευάλωτο. Οι στρατηγικές μάρκετινγκ που εφαρμόζονται σε περιόδους κρίσης στον τουριστικό τομέα είναι ικανές να μειώσουν αποτελεσματικά τις συνέπειες της εκάστοτε κρίσης. Στην παρούσα εργασία γίνεται προσπάθεια ανάδειξης των στρατηγικών μάρκετινγκ που ακολούθησαν οι επιχειρήσεις του ξενοδοχειακού κλάδου στην Ελλάδα, αποτελώντας αναπόσπαστο και καθοριστικό τμήμα του τουρισμού, κατά την περίοδο της υγειονομικής κρίσης του Covid-19. Η μελέτη διεξήχθη με ποιοτική έρευνα και συγκεκριμένα με τη μέθοδο των συνεντεύξεων, βασιζόμενες σε έναν οδηγό συζήτησης. Για την καλύτερη κατανόηση και ομαλή διεξαγωγή των συμπερασμάτων, η παρούσα μελέτη διακρίνεται σε δύο μέρη. Το πρώτο μέρος αποτελεί την βιβλιογραφική ανασκόπηση και την προσπάθεια ορισμού σημαντικών εννοιών, ενώ το δεύτερο μέρος αποτελεί τη μεθοδολογική προσέγγιση και τα συμπεράσματα που εξάγονται από την ολοκλήρωση της έρευνας. Τα συμπεράσματα που προκύπτουν από την ολοκλήρωση της διεξαγωγής των συνεντεύξεων με τα στελέχη ξενοδοχείων 4 και 5 αστέρων, παρόλο που το καθένα από αυτά βρίσκονται σε διαφορετικούς τουριστικούς προορισμούς, δείχνουν ότι οι στρατηγικές μάρκετινγκ που ακολούθησαν κατά την περίοδο της υγειονομικής κρίσης ήταν κατά γενική ομολογία παρόμοιες, χωρίς σημαντικές διαφοροποιήσεις.
Stickiness in Chaos
Creators: name: Contopoulos, G.
name: Harsoula, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We distinguish two types of stickiness in systems of two degrees of freedom (a) stickiness around an island of stability and (b) stickiness in chaos, along the unstable asymptotic curves of unstable periodic orbits. We studied these effects in the standard map with a rather large nonlinearity K=5, and we emphasized the role of the asymptotic curves U, S from the central orbit O and the asymptotic curves U+U-S+S- from the simplest unstable orbit around the island O1. We calculated the escape times (initial stickiness times) for many initial points outside but close to the island O1. The lines that separate the regions of the fast from the slow escape time follow the shape of the asymptotic curves S+,S-. We explained this phenomenon by noting that lines close to S+ on its inner side (closer to O1) approach a point of the orbit 4/9, say P1, and then follow the oscillations of the asymptotic curve U+, and escape after a rather long time, while the curves outside S+ after their approach to P1 follow the shape of the asymptotic curves U- and escape fast into the chaotic sea. All these curves return near the original arcs of U+,U- and contribute to the overall stickiness close to U+,U-. The isodensity curves follow the shape of the curves U+,U- and the maxima of density are along U+,U-. For a rather long time the stickiness effects along U+,U- are very pronounced. However after much longer times (about 1000 iterations) the overall stickiness effects are reduced and the distribution of points in the chaotic sea outside the islands tends to be uniform.
description: 28 pages, 12 figures
Statii Sylvarum libri quinque : Thebaidos libri duodecim, Achilleidos duo
Creators: name: Statius, P. Papinius (Publius Papinius)
Publisher: name: University of Victoria Libraries
Year: 2024
Subjects: subject: Italic type
valueUri: http://id.worldcat.org/fast/980788
subject: Printers' marks
valueUri: http://id.worldcat.org/fast/1076605
subject: Early printed books
valueUri: http://id.worldcat.org/fast/900645
subject: Silvae (Statius, P. Papinius)
valueUri: http://id.worldcat.org/fast/1356419
subject: Rare books
valueUri: http://id.worldcat.org/fast/1090104
subject: Achilleis (Statius, P. Papinius)
valueUri: http://id.worldcat.org/fast/1371345
subject: Colophons
valueUri: http://id.worldcat.org/fast/868495
subject: Works (Statius, P. Papinius)
valueUri: http://id.worldcat.org/fast/1796327
subject: Bookbinding
valueUri: http://id.worldcat.org/fast/836265
subject: Epic literature
valueUri: http://id.worldcat.org/fast/913695
subject: Thebais (Statius, P. Papinius)
valueUri: http://id.worldcat.org/fast/1358074

description: Contains selections from the epic poems by Publius Papinius "Silvae", "Thebaid" and "Achilleis" along with "Orthographia et flexus dictionum graecarum omnium apud Statium cum accentib. et generib. ex variis vtriusque linguae autorib." by A.P. Manutius: signatures a-ep7s (last group of small letters). Text of Orthographia in Greek and Latin. Imprint from colophon of the Achilleis, sig. Cp4s (second group of capital letters). Another, colophon of the Thebais, sig. Gp4s (first group of capital letters) reads: Venetiis, in academia Aldi Romense, Novembri, 1502.
A Study on the Impact of Extra Curricular Gamers Club on the Academic Achievement of Middle School Students
Creators: name: Faherty, Joshua
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Extra curricular activities
subject: Gamers Club
subject: Academic achievement
subject: Middle school
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine the impact of an extracurricular Gamers Club on the academic achievement of middle school students. The measurement tool was Grade Point Average (GPA). The study used a pretest/posttest design to compare 2nd quarter grade before the club to the 3rd quarter grade after participants had participated in the club. There was no significant difference in students GPA scores pre/post participation in the Gamers Club. Further research should be conducted with larger sample sizes to further confirm the data collected in order to evaluate further the impact of extracurricular gaming on students’ academic achievement.
Workshop day 1: Discussion of Campbell Creek and surrounding area
Creators: name: Parker, Verdena
name: Ammon, Danny
name: Begay, Kayla
name: Escamilla, Ramón
name: George-Moore, Melodie
name: Newbold, Lindsey
name: Lincoln, Perry
name: Parker, Otis
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-250311-06: Discussion of Campbell Creek and the location of an old wheat mill nearby, in English. Recorded in a school classroom in Hoopa Valley as part of a language workshop. The participants identified here were present at most sessions during the workshop; additional people were also present, some of whom participate in the conversation.
Spectroscopic Analysis of Subluminous B Stars in Binaries - Four Candidate Systems with Neutron Star/Black Hole Companions Discovered
Creators: name: Geier, S.
name: Karl, C.
name: Edelmann, H.
name: Heber, U.
name: Napiwotzki, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis of subluminous B (sdB) stars in close binary systems with unseen compact companions to derive their masses and clarify their nature. Radial velocity curves were obtained from time resolved spectroscopy. The atmospheric parameters were determined in a quantitative spectral analysis. With high resolution spectra we were able to measure the projected rotational velocity of the stars with high accuracy. The assumption of orbital synchronization made it possible to constrain inclination angle and companion mass of the binaries. Five invisible companions have masses that are compatible with white dwarfs or late type main sequence stars. But four sdBs have very massive companions like heavy white dwarfs, neutron stars or even black holes. Such a high fraction of massive compact companions can not be explained with current models of binary evolution.
description: 10 pages, 4 figures, To appear in the Proceedings of the International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos - IX (2006)
Εγγύς τουρισμός και ψυχολογική απόσταση
Creators: name: Θεοδωρίδη, Ροδάνθη-Μαρία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Εγγύς τουρισμός
subject: Ψυχολογική απόσταση
subject: Τουριστικό μάρκετινγκ
subject: Τουριστική ανάπτυξη
subject: e-WOM
subject: COVID-19

description: Ο βασικός σκοπός της παρούσας εργασίας ήταν να διερευνηθεί η έννοια του εγγύς τουρισμού και της ψυχολογικής απόστασης, καθώς και πως αυτά τα δυο φαινόμενα επηρεάστηκαν από την πανδημία του COVID-19 που έπληξε όλο τον κόσμο. Για να είναι αυτό εφικτό συγκεντρώθηκαν και μελετήθηκαν άρθρα και βιβλιογραφικές αναφορές, ενώ δημιουργήθηκε και ένα ερευνητικό ερωτηματολόγιο το οποίο μοιράστηκε σε ανθρώπους που πήγαν πέρσι το καλοκαίρι διακοπές. Έτσι, στο πρώτο κεφάλαιο αναλύεται ο εγγύς τουρισμός και τα οφέλη του, η ελκυστικότητα η μη των κοντινών προορισμών, ποια είναι η επιρροή των social media και φυσικά πως επηρέασε η πανδημία του COVID-19 τον εγγύ τουρισμό. Στο δεύτερο κεφάλαιο πραγματοποιείται μια εννοιολογική προσέγγιση της ψυχολογικής απόστασης στον τουρισμό και γίνεται μια αναφορά στη σχέση της με το τουριστικό μάρκετινγκ και το e-WOM. Επιπλέον, μελετάται ο τουρισμός της κληρονομιάς και η σύνδεσή του με τη ψυχολογική απόσταση. Τέλος, το ερευνητικό πλαίσιο περιλαμβάνει τα αποτελέσματα της έρευνας και τη στατιστική ανάλυση που πραγματοποιήθηκε μέσω του προγράμματος Spss.
$η$ Carinae: high angular resolution continuum, H30$α$ and He30$α$ ALMA images
Creators: name: Abraham, Z.
name: Beaklini, P. P. B.
name: Cox, P.
name: Nyman, L-Å.
name: Falceta-Gonçalves, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present images of $η$ Carinae in the recombination lines H30$α$ and He30$α$ and the underlying continuum with 50~mas resolution (110 AU), obtained with ALMA. For the first time, the 230 GHz continuum image is resolved into a compact core, coincident with the binary system position, and a weaker extended structure to the NW of the compact source. Iso-velocity images of the H30$α$ recombination line show at least 16 unresolved sources with velocities between -30 and -65 km s$^{-1}$ distributed within the continuum source. A NLTE model, with density and temperature of the order $10^7$ cm$^{-3}$ and $10^4$ K, reproduce both the observed H30$α$ line profiles and their underlying continuum flux densities. Three of these sources are identified with Weigelt blobs D, C and B; estimating their proper motions, we derive ejection times (in years) of 1952.6, 1957.1, and 1967.6, respectively, all of which are close to periastron passage. Weaker H30$α$ line emission is detected at higher positive and negative velocities, extending in the direction of the Homunculus axis. The He30$α$ recombination line is also detected with the same velocity of the narrow H30$α$ line. Finally, the close resemblance of the H30$α$ image with that of an emission line that was reported in the literature as HCO$^+$(4-3) led us to identify this line as H40$δ$ instead, an identification that is further supported by modeling results. Future observations will enable to determine the proper motions of all the compact sources discovered in the new high-angular resolution data of $η$ Carinae.
description: Accepted for publication in mnras
The Effects of Reading Strategies on Students’ Reading Levels
Creators: name: Etienne, Alicia
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Reading levels
subject: Reading strategies
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine the impact of small reading groups, independent
reading, and partner reading on students’ reading levels from on grade level to above grade level.
The participants of this study were five third grade students enrolled at an elementary school in
Baltimore County. The treatment students were provided instruction from Baltimore County
Public School English Language Arts curriculum as designed to align with the Common Core
State Standards. In addition to this curriculum, treatment students received small group
instruction, were required to complete forty-five minutes of daily independent reading, and
partner reading during independent work. The null hypothesis was supported based on the preand
post-test data, which revealed slight, but non-significant reading level growth. Future
research should continue in this area to determine methods of instructions to promote reading
level growth to more complex text.
PROCRUSTES: A computer algebra package for post-Newtonian calculations in General Relativity
Creators: name: Puetzfeld, Dirk
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on a package of routines for the computer algebra system Maple which supports the explicit determination of the geometric quantities, field equations, equations of motion, and conserved quantities of General Relativity in the post-Newtonian approximation. The package structure is modular and allows for an easy modification by the user. The set of routines can be used to verify hand calculations or to generate the input for further numerical investigations.
description: 20 pages, 3 figures. The latest version of the package can be obtained from http://www.thp.uni-koeln.de/~dp/procrustes.html
Εναλλακτικές μορφές χρηματοδότησης επιχειρήσεων
Creators: name: Χατζόγλου, Χαράλαμπος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Χρηματοδότηση
subject: Εναλλακτικές μορφές
subject: Δανεισμός

description: Στην παρούσα εργασία λαμβάνει χώρα η παρουσίαση και η ανάλυση των εναλλακτικών μορφών χρηματοδότησης των επιχειρήσεων. Σε αυτό το πλαίσιο, γίνεται παρουσίαση αλλά και ανάλυση και των παραδοσιακών μορφών χρηματοδότησης οι οποίες κατείχαν για δεκαετίες τη μερίδα του λέοντος όσον αφορά την αγορά χρηματοδότησης επιχειρήσεων και οργανισμών. Παράλληλα, η εργασία αυτή προβάλλει τη σημασία της χρηματοδότησης για την ανάπτυξη, την κερδοφορία και τη βιωσιμότητα των επιχειρήσεων. Εντούτοις, η χρηματοδότηση των επιχειρήσεων στις μέρες μας δεν θα μπορούσε να μείνει ανεπηρέαστη από την παγκόσμια οικονομική κρίση του 2008, η οποία ακόμα και σήμερα διαμορφώνει με ισχυρές επιρροές τη παγκόσμια οικονομία και αγορά. Ως αποτέλεσμα της κρίσης αυτής, οι παραδοσιακές μορφές χρηματοδότησης υπέστησαν ένα ισχυρό πλήγμα, ενώ ένα μεγάλο ποσοστό των νέων επιχειρήσεων στράφηκε σε σύγχρονες και εναλλακτικές μορφές χρηματοδότησης. Βασικός στόχος της εργασίας αυτής είναι να οριστούν οι κυριότερες εναλλακτικές και οι παραδοσιακές μορφές χρηματοδότησης, να αναπτυχθούν τα βασικά τους χαρακτηριστικά και να προσδιοριστεί η θέση τους στη σύγχρονη επιχειρηματική πραγματικότητα. Η εργασία αποτελείται από έξι κεφάλαια που αποβλέπουν στην λεπτομερή παρουσίαση του κεντρικού της θέματος και την εκπλήρωση του σκοπού της. Ειδικότερα, στο πρώτο κεφάλαιο γίνεται αναφορά στη σημασία της χρηματοδότησης των επιχειρήσεων, ενώ στο δεύτερο κεφάλαιο παρουσιάζονται εκτενώς οι παραδοσιακές μορφές χρηματοδότησης. Το τρίτο κεφάλαιο έχει ως επίκεντρο τις εναλλακτικές μορφές χρηματοδότησης. Στο τέταρτο κεφάλαιο γίνεται λόγος για τη χρηματοδότηση των επιχειρήσεων σε περιόδους οικονομικής κρίσης και το πέμπτο κεφάλαιο εστιάζει στα προβλήματα στη χρηματοδότηση των επιχειρήσεων στην Ελλάδα μετά την παγκόσμια οικονομική κρίση. Τέλος, το έκτο κεφάλαιο περιλαμβάνει μια ολοκληρωμένη εικόνα του θεσμού της χρηματοδότησης στη σύγχρονη οικονομία με ιδιαίτερη έμφαση στη σύνδεση της χρηματοδότησης με την επιχειρησιακή στρατηγική και το ανταγωνιστικό πλεονέκτημα.
THE EFFECT OF PANCREATIC CANCER ON THE FAMILY: A QUALITATIVE STUDY
Creators: name: Tatselou, Konstantina V.
name: Plakas, Sotirios K.
name: Papageorgiou, Dimitrios E.
name: Kelesi, Martha N.
name: Fasoi, Georgia G.
name: Stavropoulou, Areti S.
name: Kaba, Evridiki P.
Publisher: name: Zenodo
Year: 2023
Subjects: pancreatic cancer, family cancer carers, psychological reactions, qualitative study, grounded theory

description: Introduction: Pancreatic cancer is a serious and often fatal disease. It is an experience that can affect in many areas of life the family members who are close to the affected members, who are faced with a variety of emotions and data that are constantly changing.The aim of this qualitative study was to investigate the experiences experienced by the family of patients with end-stage pancreatic cancer.Methodology: The data collection and analysis was performed using the methodology of the Grounded Theory. In order to collect the data, unstructured interviews were conducted with family members of the patients, during the stay of their patients in the hospital. The resulting data were analyzed by the method of continuous comparative analysis.Results: From data analysis emerged three main thematic units: 1) The transition from absolute health to absolute disease. Two categories emerged through it: A) Shock - denial with two subcategories: A1) Shock - non-acceptance of the situation - first reactions and feelings, A2) Immediate and ongoing concerns and B) Psychological and practical disorganization. The 2nd thematic unit followed: Psycho-emotional response and adaptation of caregivers - family members to the unpleasant situation. The analysis was completed with the 3rd thematic unit: Ideological compensation - love defeats cancer.Conclusions: The results highlight the complexity of dealing with such a disease on a personal, psychological, practical level. The end-stage pancreatic cancer is a multifaceted difficulty for family members and the need for long-term support is imperative.
Affine interval exchange transformations with flips and wandering intervals
Creators: name: Gutierrez, C.
name: Lloyd, S.
name: Pires, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37E05, 37E10 (Primary), 37B (Secondary)

description: There exist uniquely ergodic affine interval exchange transformations of [0,1] with flips having wandering intervals and such that the support of the invariant measure is a Cantor set.
description: 7 pages
The Effect of Research-Based Reading Interventions On At-Risk, Second Grade Student Ability to Fluently Decode Grade-Level Text
Creators: name: Douglass, Hannah Lamontagne
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Reading interventions
subject: Fluency
subject: DIBELS
subject: SIPPS
subject: RTI
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether or not participation in researched-based reading interventions effects at-risk, 2nd grade student ability to fluently decode grade-level text. The measurement tool was DIBELS: Dynamic Indicators of Basic Early Literacy Skills, Sixth Edition. This study involves the use of a pretest/posttest design to compare data from January of 2014 (before the intervention was administered) to data from May of 20014 (after the intervention was nearly complete). Students participated in a research based reading intervention, SIPPS-Extension, four times per week for thirty minutes. The hypothesis of this study was supported because the hypothesis predicted that student participation in research-based reading interventions does not affect at-risk, 2nd grade student ability to fluently decode grade level text. Statistical results from the dependent t-tests that were run showed that there was no significant difference in words read per minute or in reading accuracy with the implementation of the research-based reading intervention. Research in the area of reading fluency and reading interventions should continue given that there was no significant difference between pretest/post-test results.
Bayesian Update with Importance Sampling: Required Sample Size
Creators: name: Sanz-Alonso, Daniel
name: Wang, Zijian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences
subject: 62-08, 62F15, 65C05

description: Importance sampling is used to approximate Bayes' rule in many computational approaches to Bayesian inverse problems, data assimilation and machine learning. This paper reviews and further investigates the required sample size for importance sampling in terms of the $χ^2$-divergence between target and proposal. We develop general abstract theory and illustrate through numerous examples the roles that dimension, noise-level and other model parameters play in approximating the Bayesian update with importance sampling. Our examples also facilitate a new direct comparison of standard and optimal proposals for particle filtering.
Manole, Nicolae: Ekklesiologische Perspektiven im Dialog zwischen den orthodoxen und reformatorischen Kirchen
Creators: name: Heller, Dagmar
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 56 Nr. 3 (2007): Ökumenische Rundschau, Band 56, Heft 3
Bar-Halo Friction in Galaxies III: Halo Density Changes
Creators: name: Sellwood, J. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The predicted central densities of dark matter halos in LCDM models exceed those observed in some galaxies. Weinberg & Katz argue that angular momentum transfer from a rotating bar in the baryonic disk can lower the halo density, but they also contend that N-body simulations of this process will not reveal the true continuum result unless many more than the usual numbers of particles are employed. Adopting their simplified model of a rotating rigid bar in a live halo, I have been unable to find any evidence to support their contention. I find that both the angular momentum transferred and the halo density change are independent of the number of particles over the range usually employed up to that advocated by these authors. I show that my results do not depend on any numerical parameters, and that field methods perform equally with grid methods. I also identify the reasons that the required particle number suggested by Weinberg & Katz is excessive. I further show that when countervailing compression by baryonic settling is ignored, moderate bars can reduce the mean density of the inner halo by 20% - 30%. Long, massive, skinny bars can reduce the mean inner density by a factor ~10. The largest density reductions are achieved at the expense of removing most of the angular momentum likely to reside in the baryonic component. Compression of the halo by baryonic settling must reduce, and may even overwhelm, the density reduction achievable by bar friction.
description: 19 pages, 16 figures, uses emulateapj, accepted to appear in ApJ. Extensively revised from v1
Economic efficiency of Canadian and New Zealand sires in Canadian and New Zealan dairy herds and its relationship with other traits
Creators: name: Charagu, Patrick Kang’ethe
Publisher: name: University of British Columbia
Year: 2009

description: The main objectives of this study were to test for differences in the economic efficiency of daughters of Canadian and New Zealand dairy sires born in herds in either country and to determine the relationships between economic efficiency and first lactation production traits. The data used were extracted from lifetime records of a planned trial involving the mating of 20 proven sires selected from New Zealand and 20 proven sires selected from Canada to cows in 20 New Zealand and 10 Canadian herds. The data consisted of 834 lactation records from 343 cows in Canada and 3621 lactation records from 834 cows in New Zealand. The first stage in the study involved choosing the best growth function for describing the growth curve of each cow and this was used to estimate the liveweight at each calving. The liveweights were then used to estimate feed requirements, which were in turn used in the computation of the economic efficiency measure, Returns/Feed Requirements, for different production periods. The pricing systems used in the provinces of British Columbia and Ontario were considered when computing economic efficiency in Canada. Heritability estimates of the economic efficiency traits, growth and production traits were estimated using animal model DFREML as were the genetic and phenotypic correlations between these in New Zealand. The existence of genotype by environment interaction for the various traits was also tested. Heritability estimates for economic efficiency traits across both countries ranged from 0.12 to 0.34. The genetic correlations between first lactation yield traits and economic efficiency traits in New Zealand ranged from 0.44 to 0.70. Genetic correlation between economic efficiency in the first lactation and lifetime economic efficiency was 0.73. In New Zealand daughters of New Zealand sires had significantly higher lifetime economic efficiency than daughters of Canadian sires. Daughters of both strains did not differ significantly for all other economic efficiency traits in either environments. A significant genotype by environment interaction was found at the macro level for first lactation protein yield and percentage protein. Among economic efficiency traits a significant interaction was only realized for lifetime economic efficiency with British Columbia prices. There was no interaction for any of the other economic efficiency traits and none for mature liveweight. Significant genotype by environment interactions were realized at the micro level for all economic efficiency traits for both strains of sire and for first lactation yield traits among Canadian sires.
Rotation of Linear Polarization Plane and Circular Polarization from Cosmological Pseudoscalar Fields
Creators: name: Finelli, Fabio
name: Galaverni, Matteo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the rotation of the linear polarization plane and the production of circular polarization generated by a pseudoscalar field acting as dark matter. We compute analytically and numerically the propagation of the Stokes parameters from the last scattering surface for an oscillating and a monotonic decreasing pseudoscalar field. For the models studied in this paper, we show the comparison between the widely used approximation in which the rotation angle is constant in time and the exact result.
description: Final version appeared in Physical Review D
La relation entre l'inflation et la qualité des institutions dans les pays en développement : Une application de la méthode de Driscoll & Kraay,1998 et des doubles moindres carrés (2SLS)
Creators: name: Adama BA
Publisher: name: Zenodo
Year: 2024

description: Notre étude s'appuie sur la littérature empirique pour examiner l’effet du cadre institutionnel (IBC légal ; le contrôle de la corruption), en tant qu'outils anti-inflationnistes sur un panel de 51 pays en développement entre 2002 et 2017, à l’aide de la méthode Driscool & Kraay 1998. La régression en panel groupé et à effet fixe montre que la qualité institutionnelle est un important facteur à intégrer dans la conduite de la politique monétaire. L’indépendance légale de la banque centrale, le contrôle de la corruption ont un effet négatif et significatif sur l’inflation. Ces résultats restent stables et robustes même si la variable dépendante est la volatilité de l’inflation. Par ailleurs, la prise en compte de l’endogénéité dans le modèle double moindre carré confirment les résultats. De même ; l’ouverture financière et commerciale ; la globalisation financière sont tout de même significatifs et négatifs ceci suggère qu’elles sont des compléments à la qualité des institutions dans l’objectif d’inflation. En effet, nos résultats impliquent que pour le compte des pays en développement, il est indispensable de mettre en place un environnement institutionnel favorable via des réformes institutionnelles visant à octroyer plus d’indépendance à la banque centrale, et un contrôle strict de la corruption.
The Effects of Small Group Phonics Intervention on Low Achieving Kindergarten Students
Creators: name: Dobry, Katherine
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Small group
subject: Phonics
subject: Kindergarten
subject: Phonics intervention
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether daily small group intervention in the area of phonics would positively impact achievement of selected Kindergarten students enrolled in the class. The measurement tool used was the Dynamic Indicators of Basic Early Literacy Skills (DIBELS) benchmark assessment. This study involved the use of a pretest/posttest design to compare data from January 2013 (before the intervention was administered) to May 2014 (after the intervention was complete). Achievement gains were significant, though results could be attributable to a number of intervening factors. Research in the area of small group instruction should continue given the connection between early phonics intervention and future reading achievement.
The Linkage between the Core Mass and the Magnetic Field of an Extrasolar Giant Planet from Future Radio Observations
Creators: name: Hori, Yasunori
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Close-in gas giants are expected to have a strong magnetic field of $\sim 10-100$G. Magnetic fields in extrasolar giant planets are detectable by future radio observations in $\gtrsim 10$MHz and the spectropolarimetry of atomic lines. In contrast, the elusive interiors of exoplanets remain largely unknown. Here we consider the possibility of inferring the existence of the innermost cores of extrasolar giant planets through the detection of planetary magnetic fields. We simulated the long-term thermal evolution of close-in giant planets with masses of $0.2-10M_\mathrm{Jup}$ to estimate their magnetic field strengths. A young, massive gas giant tends to have a strong magnetic field. The magnetic field strength of a hot Jupiter is insensitive to its core mass, whereas the core strongly affects the emergence of a planetary dynamo in a hot Saturn. No dynamo-driven magnetic field is generated in a hot Saturn with no core or a small one until $\sim 10-100$Myr if metallization of hydrogen occurs at $\gtrsim 1-1.5$Mbar. The magnetic field strength of an evolved gas giant after $\sim 100\mathrm{Myr}$ is almost independent of the stellar incident flux. Detecting the magnetic field of a young, hot Saturn as a good indicator of its core may be challenging because of the weakness of radio signals and the shielding effect of plasma in the Earth's ionosphere. Hot Jupiters with $\gtrsim 0.4M_\mathrm{Jup}$ can be promising candidates for future ground-based radio observations.
description: 10 pages, 8 figures, accepted for publication in ApJ
Learning to Localize Through Compressed Binary Maps
Creators: name: Wei, Xinkai
name: Bârsan, Ioan Andrei
name: Wang, Shenlong
name: Martinez, Julieta
name: Urtasun, Raquel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: One of the main difficulties of scaling current localization systems to large environments is the on-board storage required for the maps. In this paper we propose to learn to compress the map representation such that it is optimal for the localization task. As a consequence, higher compression rates can be achieved without loss of localization accuracy when compared to standard coding schemes that optimize for reconstruction, thus ignoring the end task. Our experiments show that it is possible to learn a task-specific compression which reduces storage requirements by two orders of magnitude over general-purpose codecs such as WebP without sacrificing performance.
description: 18 pages, 12 figures, 6 tables; Presented at CVPR 2019
Electrical spin injection into p-doped quantum dots through a tunnel barrier
Creators: name: Lombez, L.
name: Renucci, P.
name: Gallo, P.
name: Braun, P. F.
name: Carrere, H.
name: Binh, P. H.
name: Marie, X.
name: Amand, T.
name: Urbaszek, B.
name: Gauffier, J. L.
name: Camps, T.
name: Arnoult, A.
name: Fontaine, C.
name: Deranlot, C.
name: Mattana, R.
name: Jaffres, H.
name: George, J. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have demonstrated by electroluminescence the injection of spin polarized electrons through Co/Al2O3/GaAs tunnel barrier into p-doped InAs/GaAs quantum dots embedded in a PIN GaAs light emitting diode. The spin relaxation processes in the p-doped quantum dots are characterized independently by optical measurements (time and polarization resolved photoluminescence). The measured electroluminescence circular polarization is about 15 % at low temperature in a 2T magnetic field, leading to an estimation of the electrical spin injection yield of 35%. Moreover, this electroluminescence circular polarization is stable up to 70 K.
description: 6 pages, 4 figures
Workshop day 1: Miscellaneous Hupa vocabulary and stories told in English
Creators: name: Parker, Verdena
name: Ammon, Danny
name: Begay, Kayla
name: Escamilla, Ramón
name: George-Moore, Melodie
name: Newbold, Lindsey
name: Lincoln, Perry
name: Parker, Otis
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-250311-05a/c/e: Discussion of family and kinship vocabulary; stories and Hupa vocabulary related to constellations, thunder, and stick games, and a story about how Fox got his nose; names for some family fishing spots; stories about places in Hoopa Valley and family history. Most of the discussion is in English, with Hupa vocabulary interspersed throughout. Recorded in a school classroom in Hoopa Valley as part of a language workshop. The participants identified here were present at most sessions during the workshop; additional people were also present, some of whom participate in the conversation.
Letter to "Sirs" [J.E. McAllister and Robert Stanhope Dormer] from James Goldie, March 22, 1931
Creators: name: Goldie, James
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to J.E. McAllister and Robert Stanhope Dormer from James Goldie, dated March 22, 1931, regarding various ranch expenses and the Auditor's annual statement.
On ergodic and mixing properties of the triangle map
Creators: name: Horvat, Martin
name: Esposti, Mirko Degli
name: Isola, Stefano
name: Prosen, Tomaz
name: Bunimovich, Leonid
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this paper we study in detail, both analytically and numerically, the dynamical properties of the triangle map, a piecewise parabolic automorphism of the two-dimensional torus, for different values of the two independent parameters defining the map. The dynamics is studied numerically by means of two different symbolic encoding schemes, both relying on the fact that it maps polygons to polygons: in the first scheme we consider dynamically generated partitions made out of suitable sets of disjoint polygons, in the second we consider the standard binary partition of the torus induced by the discontinuity set. These encoding schemes are studied in detail and shown to be compatible, although not equivalent. The ergodic properties of the triangle map are then investigated in terms of the Markov transition matrices associated to the above schemes and furthermore compared to the spectral properties of the Koopman operator in L2(T2). Finally, a stochastic version of the triangle map is introduced and studied. A simple heuristic analysis of the latter yields the correct statistical and scaling behaviours of the correlation functions of the original map.
description: 45 pages, 30 figures