cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effects of intense optical phonon pumping on the structure and electronic properties of yttrium barium copper oxide
Creators: name: Fechner, Michael
name: Spaldin, Nicola A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the structural modulations induced by optical excitation of a polar phonon mode in YBa$_2$Cu$_3$O$_7$, using first-principles calculations based on density functional theory. We focus on the intense-excitation regime in which we expect that fourth-order phonon-phonon coupling terms dominate, and model the structural modulations induced by pulses of such intensity. Our calculations of the phonon-phonon anharmonicities confirm that the cubic coupling between modes, shown in earlier work to cause a quasi-static change in the apical O - Cu distance and a buckling of the CuO$_2$ planes, is the leading contribution at moderate pump strengths. At higher pump strengths ($\sim$10 MV/cm) the previously neglected quartic couplings become relevant and produce an additional shearing of the CuO$_2$ planes. Finally, we analyze the changes in the electronic and magnetic properties associated with the induced structural changes.
description: 10 pages, 6 figures
title: Staging the Alphabet: Text, Performance and the Feminine
Creators: name: Papanikolopoulou, Magdalena
Publisher: name: The University of East London
Year: 2015

description: My central concern in this thesis is to develop an artistic language that arises from the use of the Greek and Latin alphabet as well as from Greek and English words. In my native country, Greece, there is a tradition of great symbolic significance attached to letters and numbers. By examining the visual, the semiological as well as the psychological aspects of symbolism, I created artistic works that were based on the use of type and text in contemporary fine arts, through the female subjectivity.
Vampyrops brachycephalus Rouk and Carter 1972
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops brachycephalus

description: Vampyrops brachycephalus Rouk and Carter, 1972. Occas. Pap. Mus. Texas Tech Univ., 1: 1. TYPE LOCALITY: Peru, Huanuco, 3 mi. (5 km) S. Tingo Maria, 2400 ft. (732 m). DISTRIBUTION: N. Brazil; Colombia to Surinam; Ecuador; Peru. COMMENT: Includes latus; see Jones and Carter, 1976:23. ISIS NUMBER: 5301405008046001001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 167, DOI: 10.5281/zenodo.7352990
description: {"references": ["Jones, J. K., Jr., and D. C. Carter. 1976. Annotated checklist, with keys to subfamilies and genera. Part I. Pp. 7 - 38, in Biology of bats of the New World family Phyllostomatidae. Part I (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 10: 1 - 218."]}
Труды Кольского научного центра РАН, Выпуск 32019
Creators: name: Кольский научный центр Российской академии наук
Publisher: name: Труды Кольского научного центра РАН
Year: 2019

description: , Выпуск 32019
description: В 2010-м году президиум КНЦ РАН принял решение о возвращении к уже имевшейся в предыдущие годы практике издания «Трудов Кольского научного центра РАН» в виде специализированных тематических научных журналов по основным направлениям научно-исследовательской деятельности учреждений Центра.
Excitation Gap Scaling near Quantum Critical Three-Dimensional Antiferromagnets
Creators: name: Lohöfer, Maximilian
name: Wessel, Stefan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By means of large-scale quantum Monte Carlo simulations, we examine the quantum critical scaling of the magnetic excitation gap (the triplon gap) in a three-dimensional dimerized quantum antiferromagnet, the bicubic lattice, and identify characteristic multiplicative logarithmic scaling corrections atop the leading mean-field behavior. These findings are in accord with field-theoretical predictions that are based on an effective description of the quantum critical system in terms of an asymptotically-free field theory, which exhibits a logarithmic decay of the renormalized interaction strength upon approaching the quantum critical point. Furthermore, using bond-based singlet spectroscopy, we identify the amplitude (Higgs) mode resonance within the antiferromagnetic region. We find a Higgs mass scaling in accord with field-theoretical predictions that relate it by a factor of $\sqrt{2}$ to the corresponding triplon gap in the quantum disordered regime. In contrast to the situation in lower-dimensional systems, we observe in this three-dimensional coupled-dimer system a distinct signal from the amplitude mode also in the dynamical spin structure factor. The width of the Higgs mode resonance is observed to scale linearly with the Higgs mass near criticality, indicative of this critically well-defined excitation mode of the symmetry broken phase.
description: 4 pages, 4 figures 2 pages, 2 figures supplemental material
title: Die Folter im Algerienkrieg – zwischen "mémoire" und "histoire"
Creators: name: Käuper, Eva
Publisher: name: Universität Würzburg
Year: 2015
Subjects: subject: 44 Französisch, romanische Sprachen allgemein
subject: 944 Geschichte Frankreichs und Monacos

description: Schriftenreihe Junges Afrikazentrum (JAZ); 2
Vampyrops dorsalis
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops dorsalis

description: Vampyrops dorsalis (Thomas, 1900). Ann. Mag. Nat. Hist., ser. 7, 5:269. TYPE LOCALITY: Ecuador, Paramba, 1100 m. DISTRIBUTION: Panama to Peru and Bolivia. Costa Rica (RB). COMMENT: Although the named forms umbratus, oratus, and aquilus were regarded as synonyms of dorsalis by Carter and Rouk, 1973, J. Mammal., 54:976, see also Handley, 1976, Brigham Young Univ. Sci. Bull., Biol. Ser., 20(5):28, who considered them a distinct species for which the oldest name is umbratus. See also comments under umbratus. ISIS NUMBER: 5301405008046002001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 167, DOI: 10.5281/zenodo.7352990
description: {"references": ["Carter, D. C., and C. S. Rouk. 1973. Status of recently described species of Vampyrops (Chiroptera: Phyllostomatidae). Journal of Mammalogy, 54: 975 - 977.", "Handley, C. O., Jr. 1976. Mammals of the Smithsonian Venezuelan Project. Brigham Young University Science Bulletin, Biological Series, 20: 1 - 91."]}
A conceptual approach to model co-evolution of urban structures
Creators: name: Schweitzer, Frank
name: Nanumyan, Vahan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Multiagent Systems (cs.MA)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Urban structures encompass settlements, characterized by the spatial distribution of built-up areas, but also transportation structures, to connect these built-up areas. These two structures are very different in their origin and function, fulfilling complementary needs: (i) to access space, and (ii) to occupy space. Their evolution cannot be understood by looking at the dynamics of urban aggregations and transportation systems separately. Instead, existing built-up areas feed back on the further development of transportation structures, and the availability of the latter feeds back on the future growth of urban aggregations. To model this co-evolution, we propose an agent-based approach that builds on existing agent-based models for the evolution of trail systems and of urban settlements. The key element in these separate approaches is a generalized communication of agents by means of an adaptive landscape. This landscape is only generated by the agents, but once it exists, it feeds back on their further actions. The emerging trail system or urban aggregation results as a self-organized structure from these collective interactions. In our co-evolutionary approach, we couple these two separate models by means of meta-agents that represent humans with their different demands for housing and mobility. We characterize our approach as a statistical ensemble approach, which allows to capture the potential of urban evolution in a bottom-up manner, but can be validated against empirical observations.
description: 15 pages, 9 figures, for a special issue dedicated to Frei Otto
Vampyrops helleri
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops helleri

description: Vampyrops helleri (Peters, 1867). Monatsb. Preuss. Akad. Wiss. Berlin, p. 392. REVIEWED BY: B. Villa-Ramirez (BVR). TYPE LOCALITY: Mexico. DISTRIBUTION: Veracruz (Mexico) to Peru, Bolivia, Paraguay, and Amazonian Brazil; Trinidad. COMMENT: Includes zarhinus; see Jones and Carter, 1976:23; and Gardner and Carter, 1972, J. Mammal., 53:78. ISIS NUMBER: 5301405008046003001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 167, DOI: 10.5281/zenodo.7352990
description: {"references": ["Jones, J. K., Jr., and D. C. Carter. 1976. Annotated checklist, with keys to subfamilies and genera. Part I. Pp. 7 - 38, in Biology of bats of the New World family Phyllostomatidae. Part I (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 10: 1 - 218.", "Gardner, A. L., and D. C. Carter. 1972. A review of the Peruvian species of Vampyrops (Chiroptera: Phyllostomatidae). Journal of Mammalogy, 53: 72 - 82."]}
Reading councils backwards: Challenging teleological perspectives of Constantinople’s ecclesiastical development from 381 to 451
Creators: name: Pigott, Justin
Publisher: name: Australian Catholic University
Year: 2016

description: "The period from the First Council of Constantinople (381) to the Council of Chalcedon (451) is considered to be a formative one in the development of Constantinople’s self-identity and confidence as an ecclesiastical authority. Traditional representations of Constantinople during this era portray a see that was experiencing meteoric growth in episcopal authority and was increasingly attempting to assert supremacy over the churches of the east as well as challenge Rome’s authority in the west. However, it is the contention of this thesis that such a view is informed by a highly teleological perspective of Constantinople’s earliest history. Constantinople’s future significance as the centre of eastern Christianity and foil to Rome have seen perceptions of the Constantinopolitan see of the late fourth and early fifth centuries subsumed into the broad and far-reaching narratives that are synonymous with the city and its Byzantine legacy. By re-examining this seventy-year period through a close consideration of the unique theological, political, and demographic characteristics specific to the Constantinople of the time, this thesis will argue that the city’s political importance and imperial symbolism significantly preceded the development of a bishopric with the necessary institutional strengths to cope with the city’s meteoric growth. The intermingling of imperial and episcopal politics, the city’s lack of theological heritage, and the diversity of the city’s mushrooming population would cause the Constantinopolitan bishops of this period immeasurable difficulties. Eschewing the supra-narrative of Constantinople’s rise to global prominence, and repositioning the councils of 381 and 451 and the decades between them within a local Constantinopolitan context, I argue that the pronouncements of both canon 3 of Constantinople I and canon 28 of Chalcedon are not indicative of a see growing in geo-ecclesiastical confidence but were in fact responses to systemic weaknesses internal to a struggling episcopate."
Changes in nuclear structure along the Mn isotopic chain studied via charge radii
Creators: name: Heylen, H.
name: Babcock, C.
name: Beerwerth, R.
name: Billowes, J.
name: Bissell, M. L.
name: Blaum, K.
name: Bonnard, J.
name: Campbell, P.
name: Cheal, B.
name: Goodacre, T. Day
name: Fedorov, D.
name: Fritzsche, S.
name: Ruiz, R. F. Garcia
name: Geithner, W.
name: Geppert, Ch.
name: Gins, W.
name: Grob, L. K.
name: Kowalska, M.
name: Kreim, K.
name: Lenzi, S. M.
name: Moore, I. D.
name: Maass, B.
name: Malbrunot-Ettenauer, S.
name: Marsh, B.
name: Neugart, R.
name: Neyens, G.
name: Nortershauser, W.
name: Otsuka, T.
name: Papuga, J.
name: Rossel, R.
name: Rothe, S.
name: Sanchez, R.
name: Tsunoda, Y.
name: Wraith, C.
name: Xie, L.
name: Yang, X. F.
name: Yordanov, D. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The hyperfine spectra of $^{51,53-64}$Mn were measured in two experimental runs using collinear laser spectroscopy at ISOLDE, CERN. Laser spectroscopy was performed on the atomic $3d^5\ 4s^2\ ^{6}\text{S}_{5/2}\rightarrow 3d^5\ 4s4p\ ^{6}\text{P}_{3/2}$ and ionic $3d^5\ 4s\ ^{5}\text{S}_2 \rightarrow 3d^5\ 4p\ ^{5}\text{P}_3$ transitions, yielding two sets of isotope shifts. The mass and field shift factors for both transitions have been calculated in the multiconfiguration Dirac-Fock framework and were combined with a King plot analysis in order to obtain a consistent set of mean-square charge radii which, together with earlier work on neutron-deficient Mn, allow the study of nuclear structure changes from $N=25$ across $N=28$ up to $N=39$. A clear development of deformation is observed towards $N=40$, confirming the conclusions of the nuclear moments studies. From a Monte Carlo Shell Model study of the shape in the Mn isotopic chain, it is suggested that the observed development of deformation is not only due to an increase in static prolate deformation but also due to shape fluctuations and triaxiality. The changes in mean-square charge radii are well reproduced using the Duflo-Zuker formula except in the case of large deformation.
description: 9 figures, submitted to PRC
Искусство Евразии, Выпуск 4(7) 2017
Creators: name: Алтайский государственный технический университет им. И.И. Ползунова
Publisher: name: Искусство Евразии
Year: 2017

description: , Выпуск 4(7) 2017
description: Редакция журнала ставит перед собой две основных цели. Во-первых, создать платформу для презентации работ художников, архитекторов, скульпторов, представителей различных художественных движений на евразийском пространстве. Во-вторых, заново поднять вечные вопросы — об искусстве как таковом, о его сути, задачах и проблемах, а также напомнить о том, как эти вопросы решались в трудах выдающихся мыслителей разных времен. И, в-третьих, способствовать культурному диалогу и взаимообмену, совместным проектам в сфере искусства, которое объединяет людей поверх искусственных разделений и государственных границ.

Основной язык журнала — русский, но на английской странице, помимо абстрактов, часть статей представляется на английском языке.
Mesoscopic superconductivity and high spin polarization coexisting at metallic point contacts on the Weyl semimetal TaAs
Creators: name: Aggarwal, Leena
name: Gayen, Sirshendu
name: Das, Shekhar
name: Kumar, Ritesh
name: Süß, Vicky
name: Shekhar, Chandra
name: Felser, Claudia
name: Sheet, Goutam
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A Weyl semimetal is a topologically non-trivial phase of matter that hosts mass-less Weyl fermions, the particles that remained elusive for more than 80 years since their theoretical discovery. The Weyl semimetals exhibit unique transport and magneto-transport properties and remarkably high surface spin polarization. Here we show that a unique mesoscopic superconducting phase with a critical temperature up to 7 K can be realized by forming metallic point contacts with silver (Ag) on single crystals of TaAs, while neither Ag nor TaAs are superconductors. The Andreev reflection spectra obtained from such point contacts are fitted well within a modified Blonder-Tinkham-Klapwijk (BTK) model with a superconducting energy gap up to 1.2 meV. The analysis within this model also reveals high transport spin polarization up to 60\% indicating a spin polarized supercurrent flowing through the point contacts on TaAs. Such point contacts also show a large anisotropic magnetoresistance (AMR) originating from the spin polarized current. Therefore, apart from the discovery of a novel mesoscopic superconducting phase and it's coexistence with a large spin polarization, our results also show that the point contacts on Weyl semimetals are potentially important for applications in spintronics.
description: Contains supplemental materials at the end
Brun expansions of stepped surfaces
Creators: name: Berthé, Valérie
name: Fernique, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Dynamical Systems (math.DS)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Dual maps have been introduced as a generalization to higher dimensions of word substitutions and free group morphisms. In this paper, we study the action of these dual maps on particular discrete planes and surfaces -- namely stepped planes and stepped surfaces. We show that dual maps can be seen as discretizations of toral automorphisms. We then provide a connection between stepped planes and the Brun multi-dimensional continued fraction algorithm, based on a desubstitution process defined on local geometric configurations of stepped planes. By extending this connection to stepped surfaces, we obtain an effective characterization of stepped planes (more exactly, stepped quasi-planes) among stepped surfaces.
description: 37 pages, 15 figures
Dancers in the Dark: Obscured Active Galactic Nuclei across Time
Creators: name: Petric, Andreea
Publisher: name: Zenodo
Year: 2023

description: With extraordinary survey speeds and optical to near-infrared wavelength coverage in imaging and spectroscopic modes, Roman is poised to make impressive strides in understanding of general astrophysics problems like how, why, and when galaxies grow super-massive black holes, form stars, and stop forming stars. Of particular interest is the population of galaxies with active black holes in their nuclei (active galactic nuclei or AGN) that are fully or partially hidden by dust and gas, as those AGN may evolve differently than non-obscured AGN. Several X-ray through Radio imaging missions are geared to detect on the order of 10^5 obscured AGN. To realize the full scientific potential of these surveys, we must examine those objects using spectroscopic techniques to study their reddening properties, star- formation histories, and excitation conditions. With massively multiplexed spectroscopic facilities, we can efficiently measure ionized and hot molecular gas emission lines, probing star formation, AGN feedback, and gas flows in and between galaxies and the circum-galactic medium. These critical studies will shed light on the role of black holes in galaxy evolution during the epoch of peak growth activity.
Jelena Džankić, Soeren Keil and Marko Kmezić (eds.), The Europeanisation of the Western Balkans: A Failure of EU Conditionality?
Creators: name: Sardelić, Julija
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2022
Subjects: subject: Law
subject: FOS: Law
subject: 200299 Cultural Studies not elsewhere classified
subject: FOS: Other humanities
subject: 160599 Policy and Administration not elsewhere classified
subject: FOS: Political science

description: No description supplied
Finite time Stückelberg interferometry with nanomechanical modes
Creators: name: Seitner, Maximilian J.
name: Ribeiro, Hugo
name: Kölbl, Johannes
name: Faust, Thomas
name: Weig, Eva M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Stückelberg interferometry describes the interference of two strongly coupled modes during a double passage through an avoided energy level crossing. In this work, we experimentally investigate finite time effects in Stückelberg interference and provide an exact analytical solution of the Stückelberg problem. Approximating this solution in distinct limits reveals uncharted parameter regimes of Stückelberg interferometry. Experimentally, we study these regimes using a purely classical, strongly coupled nanomechanical two-mode system of high quality factor. The classical two-mode system consists of the in-plane and out-of-plane fundamental flexural mode of a high stress silicon nitride string resonator, coupled via electric gradient fields. The dielectric control and microwave cavity enhanced universal transduction of the nanoelectromechanical system allows for the experimental access to all theoretically predicted Stückelberg parameter regimes. We exploit our experimental and theoretical findings by studying the onset of Stückelberg interference in dependence of the characteristic system control parameters and obtain characteristic excitation oscillations between the two modes even without the explicit need of traversing the avoided crossing. The presented theory is not limited to classical mechanical two-mode systems but can be applied to every strongly coupled (quantum) two-level system, for example a spin-1/2 system or superconducting qubit.
Vampyrops infuscus Peters 1881
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops infuscus

description: Vampyrops infuscus Peters, 1881. Monatsb. Preuss. Akad. Wiss. Berlin for 1880, p. 259. TYPE LOCALITY: Peru, Cajamarca, Hualgayoc, Hac. Ninabamba. DISTRIBUTION: Colombia to Peru, Bolivia, and N. W. Brazil. COMMENT: Includes intermedins and fumosus; see Gardner and Carter, 1972, J. Mammal., 53:72, who designated a neotype.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 168, DOI: 10.5281/zenodo.7352990
description: {"references": ["Gardner, A. L., and D. C. Carter. 1972. A review of the Peruvian species of Vampyrops (Chiroptera: Phyllostomatidae). Journal of Mammalogy, 53: 72 - 82."]}
Vampyrops lineatus
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops lineatus

description: Vampyrops lineatus (E. Geoffroy, 1810). Ann. Mus. Hist. Nat. Paris, 15: 180. TYPE LOCALITY: Paraguay, Asuncion. DISTRIBUTION: Colombia to Peru, Bolivia, Uruguay, S. and E. Brazil, and N. Argentina. COMMENT: Includes nigellus; see Jones and Carter, 1979:8. PROTECTED STATUS: CITES - Appendix III (Uruguay). ISIS NUMBER: 5301405008046005001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 168, DOI: 10.5281/zenodo.7352990
description: {"references": ["Jones, J. K., Jr., and D. C. Carter. 1979. Systematic and distributional notes. Pp. 7 - 11, in Biology of bats of the New World family Phyllostomatidae, Part III. (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 16: 1 - 441."]}
Optimizing the subwavelength grating of L-band Annular Groove Phase Masks for high coronagraphic performance
Creators: name: Catalan, Ernesto Vargas
name: Huby, Elsa
name: Forsberg, Pontus
name: Jolivet, Aïssa
name: Baudoz, Pierre
name: Carlomagno, Brunella
name: Delacroix, Christian
name: Habraken, Serge
name: Mawet, Dimitri
name: Surdej, Jean
name: Absil, Olivier
name: Karlsson, Mikael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Context. The Annular Groove Phase Mask (AGPM) is one possible implementation of the vector vortex coronagraph, where the helical phase ramp is produced by a concentric subwavelength grating. For several years, we have been manufacturing AGPMs by etching gratings into synthetic diamond substrates using inductively coupled plasma etching. Aims. We aim to design, fabricate, optimize, and evaluate new L-band AGPMs that reach the highest possible coronagraphic performance, for applications in current and forthcoming infrared high-contrast imagers. Methods. Rigorous coupled wave analysis (RCWA) is used for designing the subwavelength grating of the phase mask. Coronagraphic performance evaluation is performed on a dedicated optical test bench. The experimental results of the performance evaluation are then used to accurately determine the actual profile of the fabricated gratings, based on RCWA modeling. Results. The AGPM coronagraphic performance is very sensitive to small errors in etch depth and grating profile. Most of the fabricated components therefore show moderate performance in terms of starlight rejection (a few 100:1 in the best cases). Here we present new processes for re-etching the fabricated components in order to optimize the parameters of the grating and hence significantly increase their coronagraphic performance. Starlight rejection up to 1000:1 is demonstrated in a broadband L filter on the coronagraphic test bench, which corresponds to a raw contrast of about 1e-5 at two resolution elements from the star for a perfect input wave front on a circular, unobstructed aperture. Conclusions. Thanks to their exquisite performance, our latest L-band AGPMs are good candidates for installation in state-of-the-art and future high-contrast thermal infrared imagers, such as METIS for the E-ELT.
description: Accepted for publication in A&A
title: Электронные модели систем водоснабжения
title: Учебное пособие
titleType: Subtitle
Creators: name: Некрасов А.В.
Publisher: name: Вузовское образование
Year: 2018

description: В пособии рассматриваются основные принципы построения и использования информационных и гидравлических моделей распределительных сетей водоснабжения поселений и городских округов. Основное внимание уделяется способам достижения адекватности моделей. Пособие предназначено для студентов вузов, обучающихся по направлению «Строительство», а также для специалистов предприятий «Водоканал».
Environmental effects on type II diabetes in Virginia counties
Creators: name: Zywokarte, Susan
Publisher: name: Journal of Mason Graduate Research
Year: 2017
Subjects: Diabetes; Regression; Environment

description: The causes of type II diabetes are extremely complex. A great deal of research has been conducted regarding genetic and behavioral causes. Newer avenues of research have begun to consider how certain environmental factors explain the prevalence of type II diabetes. This study examines two possible explanatory variables of an environmental nature. Pollution, specifically particulate matter (PM2.5) and elevation are modeled in a multivariate linear regression analysis along with two known behavioral variables: obesity and inactivity. The case study area was the Commonwealth of Virginia and the aggregation was at the county level. Although previous recent research has found a relationship between type II diabetes prevalence and PM2.5 pollution, this study did not show significant results. Elevation also did not have a significant influence on diabetes prevalence in Virginia.
description: Journal of Mason Graduate Research, Vol 4 No 1 (2017): Special Geography Issue
Magnetophonon oscillations in graphene with a large applied DC bias voltage
Creators: name: Wengraf, Joshua
Publisher: name: Lancaster University
Year: 2020

description: Magnetophonon resonance (MPR) oscillations are a valuable spectroscopic tool for studying electron interactions in solids. This type of spectroscopy is performed by applying a magnetic field to the solid, to quantise the energy of the charge carriers, and inter-Landau level scattering transitions are observed as oscillations in magnetoresistance. Since the transition energy is known, these oscillations can be used to identify phonons responsible for the inter-Landau level scattering. These oscillations, which arise due to scattering of Dirac fermions by transverse and longitudinal acoustic phonons, appear only in large graphene Hall bars with dimensions in excess of 10 um (greater than the phonon scattering mean free path). Here we apply large current-induced bias voltages (up to 1 mA) through a large graphene Hall bar and study the effect on the MPR oscillations. We observe a splitting of these oscillations due to a spatial tilting of the Landau levels induced by a strong Hall electric field. At sufficiently large Hall fields we also observe `phonon-less' inter-Landau level scattering transitions which arise when the Landau level states become parallel in energy. Finally, we observe an additional scattering process when the drift velocity approaches the speed of the transverse acoustic phonon.
Periodic solutions for nonlocal fractional equations
Creators: name: Ambrosio, Vincenzo
name: Bisci, Giovanni Molica
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The purpose of this paper is to study the existence of (weak) periodic solutions for nonlocal fractional equations with periodic boundary conditions. These equations have a variational structure and, by applying a critical point result coming out from a classical Pucci-Serrin theorem in addition to a local minimum result for differentiable functionals due to Ricceri, we are able to prove the existence of at least two periodic solutions for the treated problems. As far as we know, all these results are new.
Shaping the fashioned body
Creators: name: Hagqvist, Dorothy Diane.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Vampyrops recifinus Thomas 1901
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops recifinus

description: Vampyrops recifinus Thomas, 1901. Ann. Mag. Nat. Hist., ser. 7, 8:192. TYPE LOCALITY: Brazil, Pernambuco, Recife. DISTRIBUTION: E. Brazil; Guyana. COMMENT: May be conspecific with lineatus (RB).
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 168, DOI: 10.5281/zenodo.7352990
Detection of a diffusive cloak via second-order statistics
Creators: name: Koirala, Milan
name: Yamilov, Alexey
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a scheme to detect the diffusive cloak proposed by Schittny et al [Science 345, 427 (2014)]. We exploit the fact that diffusion of light is an approximation that disregards wave interference. The long-range contribution to intensity correlation is sensitive to locations of paths crossings and the interference inside the medium, allowing one to detect the size and position, including the depth, of the diffusive cloak. Our results also suggest that it is possible to separately manipulate the first- and the second-order statistics of wave propagation in turbid media.
description: 4 pages, 2 figures
Population dynamics in an intermittent refuge
Creators: name: Colombo, E. H.
name: Anteneodo, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Population dynamics is constrained by the environment, which needs to obey certain conditions to support population growth. We consider a standard model for the evolution of a single species population density, that includes reproduction, competition for resources and spatial spreading, while subject to an external harmful effect. The habitat is spatially heterogeneous, there existing a refuge where the population can be protected. Temporal variability is introduced by the intermittent character of the refuge. This scenario can apply to a wide range of situations, from a lab setting where bacteria can be protected by a blinking mask from ultraviolet radiation, to large scale ecosystems, like a marine reserve where there can be seasonal fishing prohibitions. Using analytical and numerical tools, we investigate the asymptotic behavior of the total population as a function of the size and characteristic time scales of the refuge. We obtain expressions for the minimal size required for population survival, in the slow and fast time scale limits.
The nature, incidence, impact and integration of spontaneous parapsychological experiences : an exploratory mixed methods research study
Creators: name: Breen, Rosemary .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
title: Novel gelled fuels containing nanoparticles as hypergolic bipropellants with HTP
Creators: name: RICKER, Sophie
name: KURILOV, Maxim
name: FREUDENMANN, Dominic
name: KIRCHBERGER, Christoph
name: HERTEL, Tobias
name: CIEZKI, Helmut
name: SCHLECHTRIEM, Stefan
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: NEW FUELS
IGNITION

description: With the aim of replacing toxic, carcinogenic propellants, new gelled bipropellants were developed. Transition metal based nanoparticles were utilised as new catalysts for the hypergolic bipropellant system with HTP as oxidiser and TMEDA as fuel. To test the quality, ignition delay times (IDTs) were determined via drop-on-pool tests. Various parameters were optimised in order to exploit catalytic activity of the nanoparticles. It was found that silver is most suitable and that size, stabilisation and distribution of the nanoparticles are important. An optimised bipropellant was created which reached an average IDT of 8.8 ms 1.0 ms.
A Feynman-Kac formula for stochastic Dirichlet problems
Creators: name: Gerencsér, Máté
name: Gyöngy, István
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60H15, 35K20, 65M25

description: A representation formula for solutions of stochastic partial differential equations with Dirichlet boundary conditions is proved. The scope of our setting is wide enough to cover the general situation when the backward characteristics that appear in the usual formulation are not even defined in the Itô sense.
title: 4.-8. März 2019
Creators: name: Schüle, Maximilian
name: Passing, Linnea
name: Kemper, Alfons
name: Neumann, Thomas
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2019

description: Große Datenmengen in Wirtschaft und Wissenschaft werden klassischerweise in Daten-banksystemen verwaltet. Um die Daten für maschinelles Lernen sowie für die Datenanalyse zu nutzen, ist ein zeitintensiver zyklischer Transformations-und Verschiebeprozess nötig, da die Daten hierfür in anderen Formaten oder schlicht in anderen Plattformen vorliegen müssen. Forschungsarbeiten der letzten Jahre widmen sich der Aufgabe, Datenverwaltung und Datenanalyse in einem System zu integrieren, um teure Datentransfers zu vermeiden. Diese Arbeit untersucht die Leistungsfähigkeit gespeicherter Prozeduren (stored procedures) zur Implementierung von Data-Mining-Algorithmen in Datenbanksystemen. Grundlage hierfür bildet HyPerScript, die PL/SQL-ähnliche Skriptsprache des Hauptspeicherdatenbanksystems HyPer. Ins-besondere evaluieren wir die prototypische Implementierung von fünf Algorithmen, die ganz ohne separates Datenanalysesystem auskommt.
Nurses? attitude and practice in providing tobacco cessation care to patients
Creators: name: Sreedharan, J
name: Muttappallymyalil, J
name: Venkatramana, M
Publisher: name: Department of Health Science - University of Genoa
Year: 2010

description: Introduction. Patients respond very positively with nurses when they talk to them about their health related problems. Methods. This cross sectional study was carried out among nurses working in Gulf Medical College hospital and Research centre, Ajman, UAE to assess the their attitude in providing tobacco cessation counselling or advise to their patients and potential barriers they face in providing tobacco cessation care. 108 nurses participated in the study.
Results. Among the nurses 87% were females, the majority were aged between 25 and 34 years, and 46.3% had a work experience of less than 5 years. Among the nurses who participated in the survey, 99.1% felt that the hospital stay was a suitable time for nurses to create awareness on tobacco and health to the patients and had a positive attitude towards creating awareness on tobacco and health to the patients. Only 0.9% had a negative attitude towards creating awareness on tobacco and health and they felt that patients might not listen to them. All nurses, irrespective of their socio-demographic characteristics had a positive attitude to motivating patients to quit tobacco use. Currently, 70.4% regularly advise their patients to avoid tobacco products. Potential barriers pointed out by nurses were: lack of time (6.3%) patients may not appreciate it (90.6%) and not part of their job (3.1%). Conclusion. The study concludes that nurses have a positive attitude in providing tobacco cessation care to their patients and they can utilize their unique knowledge and know-how to promote tobacco cessation and prevent the spread of this public health crisis. Providing advice and support for tobacco cessation by nurses would increase the chance of patients stopping tobacco use. This will create an enabling environment and greater potential for public health persons to fight the epidemic with greater vigour.
description: Journal of Preventive Medicine and Hygiene, Vol 51, No 2 (2010)
title: Sub-seasonal thaw slump mass wasting is not consistently energy limited at the landscape scale
Creators: name: Zwieback, Simon
name: Kokelj, Steven V.
name: Günther, Frank
name: Boike, Julia
name: Grosse, Guido
name: Hajnsek, Irena
Publisher: name: Universität Potsdam
Year: 2020

description: Predicting future thaw slump activity requires a sound understanding of the atmospheric drivers and geomorphic controls on mass wasting across a range of timescales. On sub-seasonal timescales, sparse measurements indicate that mass wasting at active slumps is often limited by the energy available for melting ground ice, but other factors such as rainfall or the formation of an insulating veneer may also be relevant. To study the sub-seasonal drivers, we derive topographic changes from single-pass radar interferometric data acquired by the TanDEM-X satellites. The estimated elevation changes at 12m resolution complement the commonly observed planimetric retreat rates by providing information on volume losses. Their high vertical precision (around 30 cm), frequent observations (11 days) and large coverage (5000 km(2)) allow us to track mass wasting as drivers such as the available energy change during the summer of 2015 in two study regions. We find that thaw slumps in the Tuktoyaktuk coastlands, Canada, are not energy limited in June, as they undergo limited mass wasting (height loss of around 0 cm day 1) despite the ample available energy, suggesting the widespread presence of early season insulating snow or debris veneer. Later in summer, height losses generally increase (around 3 cm day 1), but they do so in distinct ways. For many slumps, mass wasting tracks the available energy, a temporal pattern that is also observed at coastal yedoma cliffs on the Bykovsky Peninsula, Russia. However, the other two common temporal trajectories are asynchronous with the available energy, as they track strong precipitation events or show a sudden speed-up in late August respectively. The observed temporal patterns are poorly related to slump characteristics like the headwall height. The contrasting temporal behaviour of nearby thaw slumps highlights the importance of complex local and temporally varying controls on mass wasting.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 926
Vampyrops umbratus Lyon 1902
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Vampyrops
Vampyrops umbratus

description: Vampyrops umbratus Lyon, 1902. Proc. Biol. Soc. Wash., 15: 151. TYPE LOCALITY: Colombia, Magdalena, San Miguel (Macotama River). DISTRIBUTION: Panama; N. and W. Colombia; N. Venezuela. COMMENT: Formerly included in dorsalis by Carter and Rouk, 1973, J. Mammal., 54:976; but also see Handley, 1976, Brigham Young Univ. Sci. Bull., Biol, ser., 20(5):28, who by inference included oratus and aquilus in this species. Hall, 1981: 146, included this species in dorsalis.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 168, DOI: 10.5281/zenodo.7352990
description: {"references": ["Carter, D. C., and C. S. Rouk. 1973. Status of recently described species of Vampyrops (Chiroptera: Phyllostomatidae). Journal of Mammalogy, 54: 975 - 977.", "Handley, C. O., Jr. 1976. Mammals of the Smithsonian Venezuelan Project. Brigham Young University Science Bulletin, Biological Series, 20: 1 - 91.", "Hall, E. R. 1981. The mammals of North America. Second ed. John Wiley and Sons, New York, 1: 1 - 600 + 90, 2: 601 - 1181 + 90."]}
Extreme dissipation event due to plume collision in a turbulent convection cell
Creators: name: Schumacher, Joerg
name: Scheel, Janet D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: An extreme dissipation event in the bulk of a closed three-dimensional turbulent convection cell is found to be correlated with a strong reduction of the large-scale circulation flow in the system that happens at the same time as a plume emission event from the bottom plate. The reduction in the large-scale circulation opens the possibility for a nearly frontal collision of down- and upwelling plumes and the generation of a high-amplitude thermal dissipation layer in the bulk. This collision is locally connected to a subsequent high-amplitude energy dissipation event in the form of a strong shear layer. Our analysis illustrates the impact of transitions in the large-scale structures on extreme events at the smallest scales of the turbulence, a direct link that is observed in a flow with boundary layers. We also show that detection of extreme dissipation events which determine the far-tail statistics of the dissipation fields in the bulk requires long-time integrations of the equations of motion over at least hundred convective time units.
description: accepted for Phys. Rev. E, all figures are downsized
Coupling and competition between ferroelectricity, magnetism, strain and oxygen vacancies in AMnO3 perovskites
Creators: name: Marthinsen, Astrid
name: Faber, Carina
name: Aschauer, Ulrich
name: Spaldin, Nicola A.
name: Selbach, Sverre M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use first-principles calculations based on density functional theory to investigate the interplay between oxygen vacancies, A-site cation size / tolerance factor, epitaxial strain, ferroelectricity and magnetism in the perovskite manganite series, AMnO3 (A=Ca2+, Sr2+, Ba2+). We find that, as expected, increasing the volume through either chemical pressure or tensile strain generally lowers the formation energy of neutral oxygen vacancies consistent with their established tendency to expand the lattice. Increased volume also favors polar distortions, both because competing rotations of the oxygen octahedra are suppressed and because coulomb repulsion associated with cation off-centering is reduced. Interestingly, the presence of ferroelectric polarization favors ferromagnetic over antiferromagnetic ordering due to suppressed antiferromagnetic superexchange as the polar distortion bends the Mn-O-Mn bond angles away from the optimal 180deg. Intriguingly, we find that polar distortions compete with the formation of oxygen vacancies, which have a higher formation energy in the polar phases; conversely the presence of oxygen vacancies suppresses the onset of polarization. In contrast, oxygen vacancy formation energies are lower for ferromagnetic than antiferromagnetic orderings of the same structure type. Our findings suggest a rich and complex phase diagram, in which defect chemistry, polarization, structure and magnetism can be modified using chemical potential, strain, and electric or magnetic fields.
description: * Equal contribution