cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Αξιολόγηση της συνεκτικότητας λεπτόκοκκων κόνεων (fine powders) εγκαψακιωμένου αιθέριου ελαίου μέντας με κυψελίδα εφελκυσμού και σύστημα καταγραφής δυνάμεων
Creators: name: Αθανασίου, Αλεξάνδρα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Εγκαψακιωμένο αιθέριο έλαιο μέντας
Ξήρανση δια ψεκασμού
Δύναμη Εφελκυσμού
Encapsulated peppermint essential oil
Spray Drying SD
Tensile strength TS

description: Στην παρούσα εργασία παρασκευάστηκε προϊόν ξήρανσης διά ψεκασμού (Spray drying, SD) κόνεως εντερικής αποδέσμευσης αιθέριου ελαίου μέντας (EO) από γαλακτώματα ψεκασμού σταθεροποιημένα αποκλειστικά πολυσακχαρίτες (PSC) ή μαζί με το μεθακρυλικό πολυμερές Eudragit L100 (PLM) εντερικής απελευθέρωσης. Στη σύσταση των PSC χρησιμοποιήθηκαν δύο διαφορετικοί τύποι τροποποιημένων αμύλων, με και χωρίς επιφανειοδραστικότητα. Οι SD κόνεις αξιολογήθηκαν ως προς το μέγεθος και τη μορφολογία των σωματιδίων τους, την ικανότητα στοίβαξης και τη συνεκτικότητα (αντοχή σε εφελκυσμό). Η παρουσία PLM έχει σημαντική επίδραση στη μορφολογία του τοιχώματος και τη συνεκτικότητα της κόνεως. Ο τύπος του αμύλου επέδρασε στο σχηματισμό γαλακτώματος με αντανάκλαση στη μορφολογία της επιφάνειας των παραγόμενων σωματιδίων. Η εκτίμηση των μηχανικών ιδιοτήτων των κόνεων έγινε χρησιμοποιώντας κυψελίδα εφελκυσμού συνδεδεμένη με σύστημα καταγραφής δυνάμεων. Βρέθηκε πως το επιφανειοδραστικό άμυλο έδωσε προϊόν μεγαλύτερης ικανότητας στοίβαξης των κόνεων, καλύτερη συμπιεστότητα αλλά μικρότερη συνεκτικότητα. Παρομοίως, η παρουσία πολυμερούς στο τοίχωμα βελτίωσε την ικανότητα στοίβαξης και τη συμπιεστότητα αλλά μείωσε τη συνεκτικότητα.
description: In the present work, peppermint essential oil (EO) enteric release product powders were by co-spray drying polysaccharide-stabilized emulsions (PSC) and the Eudragit L100 methacrylate polymer (PLM). Two different types of modified starches (with or without surface activity) were used in the PSC emulsions. Spray dried powders were evaluated for their particle size and morphology, packing ability and mechanical properties (tensile strength/cohesiveness). The presence of the polymer affected the particles’ wall morphology and cohesiveness of the powder. Type of starch affected emulsion formation as reflected in the surface morphology of the produced particles. The evaluation of the mechanical properties of the powders was performed using a tensile cell apparatus. It was found that the surface-active starch gave a product with greater packing ability and compressibility, but with less cohesiveness. The presence of polymer in the particles’ wall improved packing ability and compressibility, but reduced cohesion.
title: Konpetentzia Digitalak. Graduko ikasleentzako formakuntza materialak: 1. Informazioa eta datuen tratamendua 1.1. Nabigazioa, bilaketak eta informazioaren filtratzea, datuak eta eduki digitalak: Aurkezpen bideoa
title: Competencias digitales. Materiales de formación para estudiantes de grado: 1. Información y tratamiento de datos 1.1. Navegación, búsqueda y filtrado de información, datos y contenidos digitales: Vídeo de presentación
Creators: name: CRUE-REBIUN
Publisher: name: REBIUN
Year: 2019

description: Graduko ikasleentzako konpetentzia digitalei buruzko formakuntza materialen "1.1.Nabigazioa, bilaketak eta informazioaren filtratzea, datuak eta eduki digitalak" puntuko aurkezpen bideoa.
description: Vídeo de presentación del punto "1.1. Navegación, búsqueda y filtrado de información, datos y contenidos digitales" de los materiales de formación sobre competencias digitales para estudiantes de grado.
TALADON: A POLARIZED AND TAGGED GAMMA RAY BEAM
Creators: name: D. BABUSCI. E. CIMA
name: M. IANNARELLI
name: E. TURRI
name: F. BASTI
name: I. HALPERN
name: L. CASANO
name: A. D'ANGELO
name: D. MORICCIANI
name: P. G. PICOZZA
name: C. SCHAERF
name: B. GIROLAMI
Publisher: name: INFN Open Access Repository
Year: 1991

description: We present the first measurements of the gamma-ray beam energy resolution obtained with a new tagging system for the Ladon facility on the storage ring Adone at Frascati. A resolution of the order of 3% in the energy region of 30-80 MeV is obtained in accordance with predictions.
ASYMMETRIES AND TIME EVOLUTION IN THE K0-K0 SYSTEM
Creators: name: V. PATERA
name: A. PUGLIESE
Publisher: name: INFN Open Access Repository
Year: 1992

description: Starting from the time evolution of the C-odd \\overline{K}^0 K^0 system, we study the CP, T and CPT violation by means of the experimentally measurable asymmetries. In particular in Kl->2π CP violating decays an accuracy of ≈2 x 10^-4 and 3 x 10^-3 on R(ε'/ε) and I(ε'/ε) seems to be achievable. CP, T and CPT violation parameters can be explored in K_s semileptonic decays with an accuracy of the order of 10^-3.
Direct mapping of the spin-filtered surface bands of a three-dimensional quantum spin Hall insulator
Creators: name: Nishide, Akinori
name: Taskin, Alexey A.
name: Takeichi, Yasuo
name: Okuda, Taichi
name: Kakizaki, Akito
name: Hirahara, Toru
name: Nakatsuji, Kan
name: Komori, Fumio
name: Ando, Yoichi
name: Matsuda, Iwao
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-polarized band structure of the three-dimensional quantum spin Hall insulator $\rm Bi_{1-x}Sb_{x}$ (x=0.12-0.13) was fully elucidated by spin-polarized angle-resolved photoemission spectroscopy using a high-yield spin polarimeter equipped with a high-resolution electron spectrometer. Between the two time-reversal-invariant points, $\bar{\varGamma}$ and $\bar{M}$, of the (111) surface Brillouin zone, a spin-up band ($Σ_3$ band) was found to cross the Fermi energy only once, providing unambiguous evidence for the strong topological insulator phase. The observed spin-polarized band dispersions determine the "mirror chirality" to be -1, which agrees with the theoretical prediction based on first-principles calculations.
Spatial Random Processes and Statistical Mechanics
Creators: name: (:Unkn) Unknown
Publisher: name: Zürich : EMS Publ. House
Year: 2006
Subjects: subject: Konferenzschrift
subject: 510

description: The workshop focused on the broad area of spatial random processes and their connection to statistical mechanics. The subjects of interest included random walk in random environment, interacting random walks, polymer models, random ﬁelds and spin systems, dynamical problems, metastability as well as problems involving two-dimensional conformal geometry. The workshop brought together many leading researchers in these ﬁelds who reported to each other on their recent achievements and exchanged ideas for new problems and potential solutions.
Detection of a single-charge defect in a metal-oxide-semiconductor structure using vertically coupled Al and Si single-electron transistors
Creators: name: Sun, L.
name: Kane, B. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An Al-AlO_x-Al single-electron transistor (SET) acting as the gate of a narrow (~ 100 nm) metal-oxide-semiconductor field-effect transistor (MOSFET) can induce a vertically aligned Si SET at the Si/SiO_2 interface near the MOSFET channel conductance threshold. By using such a vertically coupled Al and Si SET system, we have detected a single-charge defect which is tunnel-coupled to the Si SET. By solving a simple electrostatic model, the fractions of each coupling capacitance associated with the defect are extracted. The results reveal that the defect is not a large puddle or metal island, but its size is rather small, corresponding to a sphere with a radius less than 1 nm. The small size of the defect suggests it is most likely a single-charge trap at the Si/SiO_2 interface. Based on the ratios of the coupling capacitances, the interface trap is estimated to be about 20 nm away from the Si SET.
description: 5 pages and 5 figures
Unidirectional emission from circular dielectric microresonators with a point scatterer
Creators: name: Dettmann, C. P.
name: Morozov, G. V.
name: Sieber, M.
name: Waalkens, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Circular microresonators are micron sized dielectric disks embedded in material of lower refractive index. They possess modes of extremely high Q-factors (low lasing thresholds) which makes them ideal candidates for the realization of miniature laser sources. They have, however, the disadvantage of isotropic light emission caused by the rotational symmetry of the system. In order to obtain high directivity of the emission while retaining high Q-factors, we consider a microdisk with a pointlike scatterer placed off-center inside of the disk. We calculate the resulting resonant modes and show that some of them possess both of the desired characteristics. The emission is predominantly in the direction opposite to the scatterer. We show that classical ray optics is a useful guide to optimizing the design parameters of this system. We further find that exceptional points in the resonance spectrum influence how complex resonance wavenumbers change if system parameters are varied.
description: 11 pages, 14 figures
Uniqueness Results for Second Order Bellman-Isaacs Equations under Quadratic Growth Assumptions and Applications
Creators: name: Da Lio, Francesca
name: Ley, Olivier
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K65, 49L99, 49L25, 35B50, 49N10

description: In this paper, we prove a comparison result between semicontinuous viscosity sub and supersolutions growing at most quadratically of second-order degenerate parabolic Hamilton-Jacobi-Bellman and Isaacs equations. As an application, we characterize the value function of a finite horizon stochastic control problem with unbounded controls as the unique viscosity solution of the corresponding dynamic programming equation.
Gas Bremsstrahlung Evaluation for the DAFNE Project
Creators: name: A. Ferrari
name: L. Liberatori
name: M. Pelliccioni
name: P. R. Sala
Publisher: name: INFN Open Access Repository
Year: 1993

description: Bremsstrahlung produced in the storage rings of the DAPHNE Project by the interactions of electrons and positrons with the residual gas in vacuum chambers has been studied using the FLUKA code. Photon spectra and quantitative estimates of fluence rate and tissue absorbed dose rate are given. On the basis of the obtained results the precautions to take are discussed.
Singularities
Creators: name: (:Unkn) Unknown
Publisher: name: Zürich : EMS Publ. House
Year: 2006
Subjects: subject: Konferenzschrift
subject: 510

description: noindent This is the report of the Oberwolfach Workshop on singularity theory held in september 2006. Singularity theory is concerned with the local structure of maps and spaces that occur in many situations in mathematics. It uses methods from algebra, topology and algebraic geometry for their study.
Νέοι τρόποι εκμετάλλευσης του διαστήματος και η ρύθμισή τους: Η περίπτωση της εξόρυξης ορυκτών φυσικών πόρων
Creators: name: Βρόϊκου, Κωνσταντίνα Απόστολου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Διάστημα
Εξερεύνηση και Εκμετάλλευση του Διαστήματος
Εξόρυξη διαστημικών φυσικών πόρων
Space
Uses and Exploration of Outer Space
Space mining

description: Στόχος της παρούσας διπλωματικής εργασίας είναι η μελέτη των νέων τρόπων εκμετάλλευσης του έξω-ατμοσφαιρικού διαστήματος και η ανάλυση των τεχνολογικών και νομικών προκλήσεων της εκμετάλλευσης των ορυκτών φυσικών πόρων που προκύπτουν από την εξόρυξη ουρανίων σωμάτων. Στην συνέχεια, διερευνάται το υφιστάμενο νομικό καθεστώς, ενώ επιχειρείται μια κριτική προσέγγιση της κυρίαρχης ερμηνείας επί των κανόνων που ρυθμίζουν τα ζητήματα εκμετάλλευσης σε διεθνές επίπεδο, χωρίς ωστόσο να παραβλέπονται οι πολιτικές σκοπιμότητες που αποτυπώνονται πλέον στο ρυθμιστικό επίπεδο των εννόμων τάξεων κρατών τα οποία προβαίνουν στην μονομερή θέσπιση κανόνων δικαίου σχετικών με την εκμετάλλευση και εμπορευματοποίηση του διαστήματος. Ταυτόχρονα, επιχειρείται μία περιγραφή με όσο το δυνατόν πιο εύσχημο τρόπο των τεχνολογιών που αναπτύσσονται προς την κατεύθυνση της εξόρυξης των φυσικών πόρων του διαστήματος, χωρίς ωστόσο να γίνεται εμβάθυνση σε τεχνικά ζητήματα. Στην εργασία που ακολουθεί, αποτυπώνεται κυρίως η τρέχουσα ακαδημαϊκή συζήτηση επί του σύνθετου αυτού ζητήματος, της εκμετάλλευσης των διαστημικών φυσικών πόρων, ενώ η ανάλυση περιστρέφεται γύρω από τις αναφορές που εντοπίζονται στη διεθνή βιβλιογραφία και πρακτική των ΗΠΑ και των Ευρωπαϊκών κρατών.
description: The aim of the present master’s thesis is the study of the new ways of exploitation of outer space and the analysis of the technological and legal challenges that arise from the exploitation of mineral natural resources resulting from space mining of celestial bodies. Subsequently, the existing legal regime is examined, while a critical approach is attempted to the broadly accepted interpretation of the rules that regulate exploitation issues at international level, without however overlooking the political aspects that are now reflected in the regulatory level of the legal orders of states that unilaterally adopt laws related to the exploitation and commercialization of outer space. At the same time, an attempt is made to describe in the most eloquent way possible the technologies developed in the direction of extracting the natural resources of space, without, however, going into any technical issues. The following analysis mainly reflects the current academic debate on this complex issue, the exploitation of space natural resources, while the analysis revolves around the references found in the international bibliography and practice of the USA and European countries.
Efficient Quantum Tensor Product Expanders and k-designs
Creators: name: Harrow, Aram W.
name: Low, Richard A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum expanders are a quantum analogue of expanders, and k-tensor product expanders are a generalisation to graphs that randomise k correlated walkers. Here we give an efficient construction of constant-degree, constant-gap quantum k-tensor product expanders. The key ingredients are an efficient classical tensor product expander and the quantum Fourier transform. Our construction works whenever k=O(n/log n), where n is the number of qubits. An immediate corollary of this result is an efficient construction of an approximate unitary k-design, which is a quantum analogue of an approximate k-wise independent function, on n qubits for any k=O(n/log n). Previously, no efficient constructions were known for k>2, while state designs, of which unitary designs are a generalisation, were constructed efficiently in [Ambainis, Emerson 2007].
description: 16 pages, typo in references fixed
Calcium Environment in Omphacitic Pyroxenes : XANES Experimental Data One Electron Multiple Scattering Calculations
Creators: name: E. Paris
name: Ziyu Wu
name: A. Mottana
name: A. Marcelli
Publisher: name: INFN Open Access Repository
Year: 1994

description: One-electron multiple scattering calculations have been used to determine the calcium local enviroment in three pyroxenes (diopside, intermediate ordered omphacite, and jadeite-rich disordered omphacite) starting from their crystal structure data. The calculated Ca K-edge spectra agree well with the experimental X-ray absorption XANES spectra. The overall comparison of theory and experiment supports the model that in omphacite Ca distributes over two inequivalent sites, one with the same geometry as the Ca site in diopside, and the second one with that of Na in jadeite. The comparison of the measured XANES spectra with ab-initio calculated ones allows the achievement of full understanding of experimentally observed features and from them the crystal-chemical behaviour of individual cations present in a mineral structure is also determined.
title: Ψηφιακό μάρκετινγκ μεσιτικών υπηρεσιών: Ευκαιρίες και προκλήσεις στην αγορά ακινήτων
title: Digital marketing of Real Estate Services: Opportunities and challenges in the Real Estate Market
Creators: name: Παρλακ Μελισσα
Publisher: name: Technical University of Crete
Year: 2024

description: Ο τομέας των ακινήτων σημειώνει πρόοδο μέρα με τη μέρα ως αποτέλεσμα τόσο των τεχνολογικών εξελίξεων όσο και της αλλαγής των αναγκών της κοινωνίας. Με την ανάπτυξη του τομέα των ακινήτων και την επίδραση της τεχνολογίας, έχουν αρχίσει να χρησιμοποιούνται διάφορες τεχνικές ψηφιακού μάρκετινγκ, οι οποίες αντικαθιστούν τις παραδοσιακές τεχνικές μάρκετινγκ ακινήτων. Αντικείμενο της παρούσας διπλωματικής εργασίας είναι η μελέτη του ψηφιακού μάρκετινγκ ακινήτων και οι αλλαγές που έχει επιφέρει στην αγορά των ακινήτων. Στόχος της εργασίας είναι να μελετήσει την ήδη υπάρχουσα βιβλιογραφία και να γίνει μια σύνδεση στη διάσταση του μάρκετινγκ ακινήτων, μεταξύ των παραδοσιακών και των σύγχρονων προσπαθειών μάρκετινγκ.
description: The real estate sector is progressing day by day as a result of both technological developments and changing needs of society. It is a domain that provides services. With the development of the real estate sector and the impact of technology, various digital marketing techniques have started to be used, which are replacing the traditional real estate marketing techniques.The subject of this thesis is the study of digital real estate marketing and the changes it has brought about in the real estate market. The aim of the paper is to study the already existing literature and to make a connection in the real estate marketing dimension, between traditional and modern marketing efforts.
Mimetidae Simon 1881
Creators: name: Benavides, Ligia R.
name: Giribet, Gonzalo
name: Hormiga, Gustavo
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Mimetidae

description: Family Mimetidae Simon, 1881 Type genus: Mimetus Hentz, 1832
description: Published as part of Ligia R. Benavides, Gonzalo Giribet & Gustavo Hormiga, 2016, Gonzalo Giribet, pp. 1-31 in Cladistics 32 (6) on page 25, DOI: 10.1111/cla.12174, http://zenodo.org/record/192098
description: {"references": ["Simon, E., 1881. Les arachnides de France. Librairie encyclopedique de Roret, Paris, Vol. 5, pp. 1 - 180.", "Hentz, N. M., 1832. On North American spiders. Silliman's J. Sci. Arts 21, 99 - 122."]}
Topologie
Creators: name: (:Unkn) Unknown
Publisher: name: Zürich : EMS Publ. House
Year: 2006
Subjects: subject: Konferenzschrift
subject: 510

description: The participants in this conference covered all areas of algebraic and geometric topology. The talks covered a wide range of recent developments, such as the Farrell-Jones conjecture, knot theory, geometric group theory, and stable and unstable homotopy theory.
Single photon quantum non-demolition in the presence of inhomogeneous broadening
Creators: name: Greentree, Andrew D.
name: Beausoleil, R. G.
name: Hollenberg, L. C. L.
name: Munro, W. J.
name: Nemoto, Kae
name: Prawer, S.
name: Spiller, T. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electromagnetically induced transparency (EIT) has been often proposed for generating nonlinear optical effects at the single photon level; in particular, as a means to effect a quantum non-demolition measurement of a single photon field. Previous treatments have usually considered homogeneously broadened samples, but realisations in any medium will have to contend with inhomogeneous broadening. Here we reappraise an earlier scheme [Munro \textit{et al.} Phys. Rev. A \textbf{71}, 033819 (2005)] with respect to inhomogeneities and show an alternative mode of operation that is preferred in an inhomogeneous environment. We further show the implications of these results on a potential implementation in diamond containing nitrogen-vacancy colour centres. Our modelling shows that single mode waveguide structures of length $200 μ\mathrm{m}$ in single-crystal diamond containing a dilute ensemble of NV$^-$ of only 200 centres are sufficient for quantum non-demolition measurements using EIT-based weak nonlinear interactions.
description: 21 pages, 9 figures (some in colour) at low resolution for arXiv purposes
Transition Undulator Radiation (TUR) as a Beam Diagnostics and a High Brilliance Infrared Source
Creators: name: M. Castellano
Publisher: name: INFN Open Access Repository
Year: 1996

description: The Transition Undulator Radiation (TUR), introduced by K. J. Kim, is derived as an interference between two bremsstrahlung amplitudes at the entrance and exit of the undulator.The result is applied to the TTF FEL experiment, for which this radiation, in the visible bandwidth, may be used as an electron beam non intercepting diagnostics, while in the far infrared region, due to the coherent emission by each microbunch, is a high brilliance source synchronized with the higher energy FEL radiation.
WD+MS Systems as the Progenitors of Type Ia Supernovae with Different Metallicities
Creators: name: Meng, Xiangcun
name: Yang, Wuming
name: Geng, Xuemin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The single-degenerate model for the progenitors of type Ia supernovae (SNe Ia) is one of the two most popular models, in which a carbon-oxygen white dwarf (CO WD) accretes hydrogen-rich material from its companion, increases its mass to the Chandrasekhar mass limit, and then explodes as a SN Ia. Incorporating the prescription of Hachisu et al. (1999a) for the accretion efficiency into Eggleton's stellar evolution code and assuming that the prescription is valid for \emph{all} metallicities, we carried out a detailed binary evolution study with different metallicities. We show the initial and final parameter space for SNe Ia in a ($\log P-M_{\rm 2}$) plane. The positions of some famous recurrent novae in the ($\log P-M_{\rm 2}$) plane, as well as a supersoft X-ray source (SSS), RX J0513.9-6951 are well explained by our model, and our model can also explain the space velocity and mass of Tycho G, which is now suggested to be the companion star of Tycho's supernova . Our study indicates that the SSS, V Sge, is a potential progenitor of supernovae like SN 2002ic if the delayed dynamical-instability model in Han & Podsiadlowski (2006) is appropriate.
description: 10 pages, 12 figures, accepted for publication in PASJ
Gender and small arms violence in Papua New Guinea
Creators: name: Thompson, Edwina
name: Dinnen, Sinclair
Publisher: name: Canberra, ACT: State, Society and Governance in Melanesia (SSGM) Program, The Australian National University
Year: 2004
Subjects: gun culture
Papua New Guinea
small arms
firearms regulation

description: Evidence gleaned from media, anecdotal, and hitherto unpublished sources suggests that violence resulting from small arms and light weapons in PNG is distinctly gendered. While it is important to recognise that conflict and post-conflict situations affect men and women in different ways, it is instructive to go further, and examine the different experiences of men and women in the context of the ‘gun culture’ that has developed in parts of PNG in recent years. Our research uncovers both important gender differences in perceptions of security and the gendered nature of gun violence. By situating the proliferation of small arms in the context of culture, power, and security in PNG, our contribution is grounded in a social and political history of PNG, with an account of the changing pattern of conflict and violence, gender relations, and in particular, the role of firearms. Our investigation proceeds through a discussion of the three broad and overlapping settings in which the gun culture has emerged. These are raskolism, tribal fighting, and election-related violence. The investigation then moves to an overview of the gender of violence in PNG, and concludes with a discussion of the alternative responses of the state and community-based organisations to violence and conflict. A number of policy implications follow.
A study of the solubility of synthetic hydroxyapatite.
Creators: name: Sleeman, Kenneth Jack
Publisher: name: University of British Columbia
Year: 2011

description: study was made of the solubility of synthetic hydroxyapatite (Ca₁₀(PO₄)₆(OH₂). The basic calcium phosphate was synthesized in CO₂ free systems, over a pH range of 5.0 to 8.0 using reaction temperatures of 40°, 60°, and 90°C, and reaction periods of 24 and 96 hours. The study was divided into two phases. In one phase the pH of the suspensions, and the calcium and phosphorus concentrations in solution were measured after precipitation and after redispersing the preparations in water. The application of solubility criteria to these studies showed that the differences in solubility obtained by synthesis with varying reaction period and temperature were not brought about by conditions of super saturation. Solubility was found to decrease with increased synthesis reaction period and increased temperature of synthesis. With a given temperature and synthesis reaction period the hydroxyapatite preparations had a uniform solubility. Solubility changed only when the conditions of synthesis were changed. X-ray diffraction analysis of the solid phase indicated that the solubility of hydroxyapatite decreased with increasing crystallinity. Examination with the electron microscope, however, showed that increased crystallinity was not due to increasing crystal size. Owing to the smallness of crystals, it was not possible to examine the hydroxyapatite with a petrographic microscope, and hence it was not possible to detect the presence of amorphous phases. It is possible, then, that small amounts of amorphous substances were present in the solid phase, and, as a result the apparent degree of crystallinity was altered. In the second phase, studies of the Ca:P mole ratios of the preparations showed that Mole ratios were not constant for any mode of synthesis. Further studies indicated that adsorption was of no, or at best, minor importance in determining the Ca:P ratios of hydroxyapatite. Isomorphous substitution with OH¯ions replacing PO₄¯ ions, and H₃O⁺ ions replacing Ca⁺⁺ ions might have occurred, but it was not possible to detect solubility differences which should result from this substitution. Hence it was not possible to correlate solubility with composition of hydroxyapatite. Even though the hydroxyapatite appeared to be of variable composition, it was found that this basic calcium phosphate had a definite pKsp value in the pH range of 5.0 to 8.0.
Epsilon Indi Ba, Bb: a detailed study of the nearest known brown dwarfs
Creators: name: King, Robert R.
name: McCaughrean, Mark J.
name: Homeier, Derek
name: Allard, France
name: Scholz, Ralf-Dieter
name: Lodieu, Nicolas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The discovery of epsilon Indi Ba, Bb, a binary brown dwarf system very close to the Sun, makes possible a concerted campaign to characterise the physical parameters of two T dwarfs. Recent observations suggest substellar atmospheric and evolutionary models may be inconsistent with observations, but there have been few conclusive tests to date. We therefore aim to characterise these benchmark brown dwarfs to place constraints on such models. We have obtained high angular resolution optical, near-infrared, and thermal-infrared imaging and medium-resolution (up to R~5000) spectroscopy of epsilon Indi Ba, Bb with the ESO VLT and present VRIzJHKL'M' broad-band photometry and 0.63--5.1 micron spectroscopy of the individual components. Furthermore, we use deep AO-imaging to place upper limits on the (model-dependent) mass of any further system members. We derive luminosities of log L/L_sun = -4.699+/-0.017 and -5.232+/-0.020 for epsilon Indi Ba, Bb, respectively, and using the dynamical system mass and COND03 evolutionary models predict a system age of 3.7--4.3 Gyr, in excess of previous estimates and recent predictions from observations of these brown dwarfs. Moreover, the effective temperatures of 1352--1385 K and 976--1011 K predicted from the COND03 evolutionary models, for epsilon Indi Ba and Bb respectively, are in disagreement with those derived from the comparison of our data with the BT-Settl atmospheric models where we find effective temperatures of 1300--1340 K and 880--940 K, for epsilon Indi Ba and Bb respectively, with surface gravities of log g=5.25 and 5.50. Finally, we show that spectroscopically determined effective temperatures and surface gravities for ultra-cool dwarfs can lead to underestimated masses even where precise luminosity constraints are available.
description: 27 pages, 30 figures, 9 tables, accepted for publication in Astronomy and Astrophysics
The Role of the Magnetic Field in the Interstellar Medium of the Post-Starburst Dwarf Irregular Galaxy NGC 1569
Creators: name: Kepley, Amanda A.
name: Muehle, Stefanie
name: Everett, John
name: Zweibel, Ellen G.
name: Wilcots, Eric M.
name: Klein, Uli
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (abridged) NGC 1569 is a nearby dwarf irregular galaxy which underwent an intense burst of star formation 10 to 40 Myr ago. We present observations that reach surface brightnesses two to eighty times fainter than previous radio continuum observations and the first radio continuum polarization observations. These observations allow us to probe the relationship of the magnetic field of NGC 1569 to the rest of its interstellar medium. We confirm the presence of an extended radio continuum halo at 20 cm and see for the first time the radio continuum feature associated with the western Halpha arm at wavelengths shorter than 20cm. The spectral index trends in this galaxy support the theory that there is a convective wind at work in this galaxy. We derive a total magnetic field strength of 38 microG in the central regions and 10-15 microG in the halo. The magnetic field is largely random in the center of the galaxy; the uniform field is ~3-9 microG and is strongest in the halo. We find that the magnetic pressure is the same order of magnitude but, in general, a factor of a few less than the other components of the interstellar medium in this galaxy. The uniform magnetic field in NGC 1569 is closely associated with the Halpha bubbles and filaments. We suggest that a supernova-driven dynamo may be operating in this galaxy. The outflow of hot gas from NGC 1569 is clearly shaping the magnetic field, but the magnetic field in turn may be aiding the outflow by channeling gas out of the disk of the galaxy. Dwarf galaxies with extended radio continuum halos like that of NGC 1569 may play an important role in magnetizing the intergalactic medium.
description: ApJ accepted. 56 pages, 14 figures (low resolution), 8 tables. Version with high resolution figures at http://www.astro.virginia.edu/~aak8t/data/n1569/ms.pdf
On the circular polarisation of light from axion-photon mixing
Creators: name: Payez, A.
name: Cudell, J. R.
name: Hutsemékers, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From the analysis of measurements of the linear polarisation of visible light coming from quasars, the existence of large-scale coherent orientations of quasar polarisation vectors in some regions of the sky has been reported. Here, we show that this can be explained by the mixing of the incoming photons with nearly massless pseudoscalar (axion-like) particles in extragalactic magnetic fields. We present a new treatment in terms of wave packets and discuss its implications for the circular polarisation.
description: Contributed to "Invisible Universe International Conference", Paris, June 29 - July 3 2009. To be published in AIP proceedings
PDE and Materials
Creators: name: (:Unkn) Unknown
Publisher: name: Zürich : EMS Publ. House
Year: 2006
Subjects: subject: Konferenzschrift
subject: 510

description: This meeting brought together a carefully selected group of mathematicians, physicists, material scientists and engineers to discuss and review the impact of modern mathematical methods on the understanding of material behaviour and the design of new materials. A key issue is that the material behaviour is determined by physical processes at many different spatial and temporal scales which cannot be simulataneously resolved by brute force computation. Central themes of the meeting were (spatial) microstructures, the relation between atomistic and continuum models, the treatment of multiple temporal scales, and the influence of randomness and the use of methods from statistical mechanics.
Effects of the Gravivector and Graviscalar Fields in N=2,8 Supergravity
Creators: name: S. Bellucci
name: V. Faraoni
Publisher: name: INFN Open Access Repository
Year: 1996

description: The available tests of the equivalence principle constrain the mass of the Higgs-like boson appearing in extended supergravity theories. We determine the constraints imposed by high precision experiments on the antigravity fields (gravivector and graviscalar) arising from N=2,8 supergravity.
A compact apparatus for studies of element and phase-resolved ferromagnetic resonance
Creators: name: Arena, D. A.
name: Ding, Y.
name: Vescovo, E.
name: Zohar, S. Z.
name: Guan, Y.
name: Bailey, W. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a compact sample holder equipped with electromagnets and high frequency transmission lines; the sample holder is intended for combined x-ray magnetic circular dichroism (XMCD) and ferromagnetic resonance measurements (FMR). Time-resolved measurements of resonant x-ray detected FMR during forced precession are enabled by use of a rf excitation that is phase-locked to the storage ring bunch clock. Several applications of the combined XMCD + FMR technique are presented, demonstrating the flexibility of the experimental design.
description: 8 pages, 6 figures, submitted to Review of Scientific Instruments
The interpretation of stress in relation to families of hospitalised mental patients : an exploratory analysis of a sample of mentallly ill patients and their closest relatives, Crease Clinic, Vancouver, 1962-1963.
Creators: name: Sharpe, Francis Noel Brian
Publisher: name: University of British Columbia
Year: 2011

description: The complexities of man's current social universe permit little opportunity for him to function in a social environment that is undergoing constant change, without experiencing stress. Those who are unable to adapt or adjust to the stresses of modern living fall prey to the ravages of mental illness. Changing professional perspectives and the research of social scientists are re-awakening professional eyes to the significance of the patient in relation to his social environment. The experience of mental illness and all its ramifications are also the experience of those who shared in a reciprocal role relationship to the patient. Isolation - the remedy of old - today is a lost cause. For social work, current theories of social dynamics promise to add a new dimension, by which to understand the social structure of the mentally ill person and those who interact with him. The new theory requires inspection and testing. This thesis is an attempt to examine some of the clinical applications of a theory that might well have great consequences for social casework. Social role theory is reviewed as background, and the concepts of role and stress are explored in relation to the family, when one of its members becomes mentally ill and requires hospitalisation. To examine clinically the effects of hospitalization on family and patient, using role concepts, a small group of families was selected and studied. Structured interviews were used to elicit both descriptive details and feelings about the family, as well as the meaning and effect of hospitalisation. The sample group was drawn from both female and male sections of the Crease clinic of Psychological Medicine; and, where possible, both the patient and a reciprocal (close relative) were interviewed. The questions were directed particularly to roles and relationships before and after admission. The study reveals that patients and their reciprocals experienced stress in two phases: (a) when the patient is mentally ill, but living at home and (b) when the patient has been hospitalised. In the former, stress centres around changes in perception and performance in an effort to continue functioning, in spite of the maladaptive roles of the mentally ill family member. In the latter, stress centres around the absence of the family member, whose absence displaces role and relationships upon which the social structure of the family network is highly dependent. The study also reveals that hospitalisation is relieving for both patient and reciprocals, and in some cases leads to the resumption of certain roles discarded during the presence of the mentally ill member at home.
On the Absence of Multiple Dips in Diffraction of Hih Energy Hadrons
Creators: name: A. Malecki
name: M. Michalec
name: M. Pallotta
Publisher: name: INFN Open Access Repository
Year: 1997

description: An unorthodox insight into the structure of the geometrical Chou-Yang model explains the experimentally observed paradox of elastic diffraction of high energy hadrons without multiple dips. It is pointed out that the shadow scattering, away from the forward peak, is governed by small values of the coupling strength.
A Comparative Study of the Decays Β→(K,K^*)l^+ l^- in Standard Model and Supersymmetric Theories
Creators: name: A. Ali
name: P. Ball
name: L. T. Handoko
name: G. Hiller
Publisher: name: INFN Open Access Repository
Year: 1999

description: Using improved theoretical calculations of the decay form factors in the Lightcone-QCD sum rule approach, we investigate the decay rates, dilepton invariant mass spectra and the forward-backward (FB) asymmetry in the decays  Β→(K,K^*)l^+ l^- (l^±=e^±,μ^±,τ^±) in the standard  model (SM) and a number of popular variants of the supersymmetric (SUSY) models.Theoretical precision on the differential decay rates and FB-asymmetry are worked out in these theories taking into account various parameteric uncertainties. We argue that the FB-asymmetry in  Β→K^* l^+ l^- provides a precision test of the SM and its measurement may reveal new physics.In  particular, the presently allowed large-tan β solutions in SUGRA models yield FB-asymmetries which are characteristically different from the corresponding ones in SM. We also emphasize the role of exclusive rare decays, in particular, the present experimental bounds on the branching ratio B(Β→K^* μ^+ μ^-) in constraining the parameters of the SUSY models.
Total Photonic and Hadronic Cross-sections
Creators: name: R.M. Godbole
name: A. Grau
name: G. Pancheri
Publisher: name: INFN Open Access Repository
Year: 2000

description: We discuss total cross-sections within the context of the QCD calculable mini-jet model, highlightings its successes and failures. In particular we show its description   of γγ→hadrons and compare it with OPAL and L3 data. We extrapolate this result to γp total cross-sections and propose a phenomenological ansätz for virtual photon cross-sections. We point out that the good  agreement with data obtained with the Eikonal Minijet Model should not hide the many uncertainties buried in the impact parameter distribution. A model obtained from Soft Gluon Summation is briefly discussed and its application to hadronic cross-sections is shown.
The Top Triangle Moose
Creators: name: Chivukula, R. S.
name: Christensen, N. D.
name: Coleppa, B.
name: Simmons, E. H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a deconstructed model that incorporates both Higgsless and top-color mechanisms. The model alleviates the typical tension in Higgsless models between obtaining the correct top quark mass and keeping delta-rho small. It does so by singling out the top quark mass generation as arising from a Yukawa coupling to an effective top-Higgs which develops a small vacuum expectation value, while electroweak symmetry breaking results largely from a Higgsless mechanism. As a result, the heavy partners of the SM fermions can be light enough to be seen at the LHC.
description: To appear in proceedings of SCGT09, Nagoya, Japan. 5 pages
MPEC 2023-K124 : 2023 KE2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 KE2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Generic Two-Qubit Photonic Gates Implemented by Number-Resolving Photodetection
Creators: name: Uskov, Dmitry B.
name: Smith, A. Matthew
name: Kaplan, Lev
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We combine numerical optimization techniques [Uskov et al., Phys. Rev. A 79, 042326 (2009)] with symmetries of the Weyl chamber to obtain optimal implementations of generic linear-optical KLM-type two-qubit entangling gates. We find that while any two-qubit controlled-U gate, including CNOT and CS, can be implemented using only two ancilla resources with success probability S > 0.05, a generic SU(4) operation requires three unentangled ancilla photons, with success S > 0.0063. Specifically, we obtain a maximal success probability close to 0.0072 for the B gate. We show that single-shot implementation of a generic SU(4) gate offers more than an order of magnitude increase in the success probability and two-fold reduction in overhead ancilla resources compared to standard triple-CNOT and double-B gate decompositions.
description: 5 pages, 3 figures
InnerSource Circumplex Model: Mapping Cross-organizational Developer Collaboration Patterns with Insights from Japanese Corporate Experience
Creators: name: Yuki, Hattori
Publisher: name: Aoyama Gakuin University
Year: 2025
Subjects: InnerSource
Open Source

description: This paper presents a comprehensive analysis of InnerSource adoption processes and their evolution within enterprises. First, a comparative analysis of Japanese and global enterprises highlights differences in the state of software sharing, perceptions of its importance, and barriers to implementation. Next, this study demonstrates that InnerSource adoption involves multi-layered, topological evolution beyond conventional staged models of program evolution. The research proposes three theoretical frameworks: InnerSource Topologies, which conceptualizes collaborative structures and categorizes internal collaboration levels; the Multi-layered Incentive Model, which combines monetary and non-monetary rewards at individual and project levels; and the InnerSource Circumplex Model, which helps organizations define InnerSource forms based on their specific needs. By mapping InnerSource evolution as a circumplex rather than simple staged progression, leaders can better adjust their focus during implementation. These frameworks help refine the previously ambiguous concept of InnerSource from the perspectives of sharing scope and community growth. These findings reaffirm that successful InnerSource adoption requires the parallel pursuit of top-down program structuring and bottom-up voluntary collaboration. They also contribute to fostering a sustainable innovation culture and enhancing software-sharing practices within enterprises. Furthermore, the newly proposed frameworks, particularly the Circumplex Model, offer versatile guidelines for organizations of varying cultural backgrounds and scales, enabling them to flexibly redefine and introduce InnerSource. This research is thus expected to advance corporate software sharing and spur innovation in diverse industrial contexts.
Response to NIH Request for Information: Institutional Accountability to Promote Inclusive Excellence
Creators: name: Equality, Diversity and Inclusion Committee
Publisher: name: Zenodo
Year: 2019
Subjects: equality
diversity
inclusion
biocuration

description: A response to the NIH Request for Information on Institutional Accountability to Promote Inclusive Excellence. Submitted on behalf of the International Society for Biocuration Equality, Diversity and Inclusion committee.

Members:

Nicole Vasilevsky, OHSU, Portland, OR, USA

Mary Ann Tulli, GigaScience, HK & OUP, UK

Frederic Bastian, Lausanne, CH

Yvonne Bradford, ZFIN, Univ of Oregon

Sara El-Gebali, EBI, UK

Rachael Huntley, SciBite, UK

Peter McQuilton, Oxford, UK

Ilene Mizrachi, NCBI, USA

Shashikant Pujar, NIH/NCBI, Bethesda, MD

Lorna Richardson, University of East Anglia, UK

Marc Robinson-Rechavi, Lausanne, CH

Tam Sneddon, Broad Institute, Cambridge, MA

Andrew Su, ISCB, Scripps, USA

Moni Munoz-Torres, OSU, Corvallis, OR, USA

Roxanne Yamashita, NIH/NCBI, Bethesda, MD
A Chandra X-ray Observatory Study of PSR J1740--5340 and Candidate Millisecond Pulsars in the Globular Cluster NGC 6397
Creators: name: Bogdanov, Slavko
name: Berg, Maureen van den
name: Heinke, Craig O.
name: Cohn, Haldan N.
name: Lugger, Phyllis M.
name: Grindlay, Jonathan E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a deep Chandra X-ray Observatory study of the peculiar binary radio millisecond pulsar PSR J1740--5340 and candidate millisecond pulsars (MSPs) in the globular cluster NGC 6397. The X-rays from PSR J1740--5340 appear to be non-thermal and exhibit variability at the binary period. These properties suggest the presence of a relativistic intrabinary shock formed due to interaction of a relativistic rotation-powered pulsar wind and outflow from the unusual "red-straggler/sub-subgiant" companion. We find the X-ray source U18 to show similar X-ray and optical properties to those of PSR J1740--5340, making it a strong MSP candidate. It exhibits variability on timescales from hours to years, also consistent with an intrabinary shock origin of its X-ray emission. The unprecedented depth of the X-ray data allows us to conduct a complete census of MSPs in NGC 6397. Based on the properties of the present sample of X-ray--detected MSPs in the Galaxy we find that NGC 6397 probably hosts no more than 6 MSPs.
description: 10 pages, 6 figures, 3 tables; accepted for publication in The Astrophysical Journal