cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Trends in structural, electronic properties, Fermi surface topology, and inter-atomic bonding in the series of ternary layered dichalcogenides KNi2S2, KNi2Se2, and KNi2Te2 from first principles calculations
Creators: name: Bannikov, V. V.
name: Ivanovskii, A. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By means of the FLAPW-GGA approach, we have systematically studied the structural and electronic properties of tetragonal dichalcogenides KNi2Ch2 (Ch = S, Se, and Te). Our results show that replacements of chalcogens (S -> Se -> Te) lead to anisotropic deformations of the crystals structure, which are related to the strong anisotropic character of the inter-atomic bonds, where inside the [Ni2Ch2] blocks, mixed covalent-ionic-metallic bonds occur, whereas between the adjacent [Ni2Ch2] blocks and K atomic sheets, ionic bonds emerge. We found that in the sequence KNi2S2 -> KNi2Se2 -> KNi2Te2 (i) the overall band structure (where the near-Fermi valence bands are due mainly to the Ni states) is preserved, but the width of the common valence band and the widths of the separate subbands and the gaps decrease; (ii) the total DOSs at the Fermi level also decrease; and (iii) for the Fermi surfaces, the most appreciable changes are demonstrated by the hole-like sheets, when a necklace-like topology is formed for the 2D-like sheets and the volume of the closed pockets decreases. Some trends in structural and electronic parameters for ThCr2Si2-type layered dichalcogenides, KNi2Ch2, KFe2Ch2, KCo2Se2, are discussed.
description: 10 pagers, 6 figures
Sull'indeterminatezza della procedura di attribuzione dei seggi nella legge elettorale italiana
Creators: name: Crafa, Silvia
Publisher: name: Zenodo
Year: 2023
Subjects: italian election law
algorithmic analysis

description: Viene presentata un’analisi algoritmica del testo di legge che definisce la procedura di assegnazione territoriale dei seggi nel contesto della legge elettorale italiana attualmente in vigore. L’analisi rivela l’apertura del testo a diverse interpretazioni, corrispondenti a diversi algoritmi, che possono condurre ad assegnazioni diverse dei seggi nazionali. Oltre alla determinazione non univoca delle operazioni da effettuare, si rileva la presenza alcuni scenari, piuttosto rari, in cui la norma non indica come procedere.
title: Подвиг, подвижник, герой
Creators: name: Дидковская, Виктория
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Автор статьи рассматривает историю слов подвиг, подвижник, которые относит к ключевым словам русской духовной культуры, образующим модель фрагмента русского ментального лексикона. В статье показаны изменения в семантике этих слов, связанные с утратой старых и появлением новых значений. Одной из причин автор считает появление слова герой, которое сформировало два представления о подвиге: подвиг христианский ― подвижничество, и подвиг светский ― героизм.
Breastfeeding woman are at higher risk of vitamin D deficiency than non-breastfeeding women - insights from the German VitaMinFemin study
Creators: name: Gellert, Sandra
name: Ströhle, Alexander
name: Hahn, Andreas
Publisher: name: London : BioMed Central Ltd.
Year: 2017
Subjects: subject: 25(OH)D
subject: Breastfeeding period
subject: Germany
subject: Vitamin D
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Background: Despite increased awareness of the adverse health effects of vitamin D deficiency, only a few studies have evaluated the vitamin D status (25-hydroxyvitamin D [25(OHD)]) of breastfeeding women and up to now, no information exits for German breastfeeding women. Therefore, the aim of study was to determine the vitamin D status of breastfeeding women compared to non-pregnant and non-breastfeeding (NPNB) women. Methods: This cross-sectional study investigated 124 breastfeeding women and 124 age and season matched NPNB women from the German "Vitamin and mineral status among German women" study. The study participants were recruited from April 2013 to March 2015 and did not take vitamin D supplements. Serum 25(OH)D was analyzed by chemiluminescent immunoassay. Results: Vitamin D deficiency (<25.0 nmol/L) was prevalent in 26.6% of the breastfeeding women. The majority of women (49.2%) showed 25(OH)D concentration between 25.0 and 49.9 nmol/L. In multiple binary logistic regression analysis, breastfeeding women had a 4.0-fold higher odds ratio (OR) (95% confidence interval [CI] 1.8, 8.7) for vitamin D deficiency than NPNB women. For breastfeeding women, the risk of vitamin D deficiency was higher in the winter and spring months (OR: 2.6, 95% CI 1.1, 6.3) and increased with lower longitude per one unit (OR 0.7, 95% CI 0.6, 0.9). Conclusion: Breastfeeding women in Germany had a higher risk of deficient vitamin D levels than NPNB women. In further studies, the optimal vitamin D status for breastfeeding women should be investigated and also the required vitamin D doses to ensure this vitamin D status. Trial registration: German Clinical Trial Register (identification number: DRKS00004789 ).
Optimal bispectrum estimator and simulations of the the CMB Lensing-ISW non-Gaussian signal
Creators: name: Mangilli, Anna
name: Wandelt, Benjamin
name: Elsner, Franz
name: Liguori, Michele
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we present the tools to optimally extract the Lensing-Integrated Sachs Wolfe (L-ISW) bispectrum signal from future CMB data. We implement two different methods to simulate the non-Gaussian CMB maps with the L-ISW signal: a non-perturbative method based on the FLINTS lensing code and the separable mode expansion method. We implement the Komatsu, Spergel and Wandelt (KSW) optimal estimator analysis for the Lensing-ISW bispectrum and we test it on the non-Gaussian simulations in the case of a realistic CMB experimental settings with an inhomogeneous sky coverage. We show that the estimator approaches the Cramer-Rao bound and that Wiener filtering the L-ISW simulations gives a slight improvement on the estimate of $f_{NL}^{L-ISW}$ of $\leq 10%$. For a realistic CMB experimental setting accounting for anisotropic noise and masked sky, we show that the linear term of the estimator is highly correlated to the cubic term and it is necessary to recover the signal and the optimal error bars. We also show that the L-ISW bispectrum, if not correctly accounted for, yields an underestimation of the $f_{NL}^{local}$ error bars of $\simeq 4%$. A joint analysis of the non-Gaussian shapes and/or L-ISW template subtraction is needed in order to recover unbiased results of the primordial non-Gaussian signal from ongoing and future CMB experiments.
description: 9 pages,10 figures, submitted to A&A
Equisetum palustre L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: T. palustre L. Cat. 331. Bis 2536 m. l: Draversaz (J.); Illarsaz (Marietan); Salanfe (Coquoz, Garns); Les Marecottes (J.); Martigny- Croix (J.); Dorenaz(Garns). -2: Rhoneebenemehrfach unter Fully und Saillon (Garns); «Plan de la Maretse» auf der Montagne de Fully, 2020 m, in einer zarten, niederen Form (idem). - 3: Val d'Entremont (Beauverd); Chanrion (Zahn);ColdeFenetredeBagnes (Binz);Saxon(F.); Riddes (J.); Nendaz (J.); Val des Dix (J.); Alpe de Torrent (Beauverd); Turtmanntal (J., Beauverd); obUnterbäch(Binz);Törbel(Stehler);Grächen(Beauverd);Zermatt:vielfach (zahlreiche Beobachter),bisStellisee,2536m (Braun-Blanquet1919);Saastalvielfach:Huteggen (A. Keller), Grund (Höhn),Bodmen (Becherer und Thommen), Almagell (Becherer), -Zermeiggern (A.Keller). - 3a: Unter Engeloch; Simplon-Dorf; ob Gabi (alles: Becherer). - 4: Binntal, mehrfach (Binz, P., Becherer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
All-Pairs Shortest Paths in Geometric Intersection Graphs
Creators: name: Chan, Timothy M.
name: Skrepetos, Dimitrios
Publisher: name: Journal of Computational Geometry
Year: 2019

description: $\newcommand{\OO}[1]{O\left(#1\right)}$We present a simple and general algorithm for the all-pairs shortest paths (APSP) problem in unweighted geometric intersection graphs. Specifically we reduce the problem to the design of static data structures for offline intersection detection. Consequently we can solve APSP in unweighted intersection graphs of $n$ arbitrary disks in $\OO{n^2 \log n}$ time, axis-aligned line segments in $\OO{n^2 \log{\log n}}$ time, arbitrary line segments in $\OO{n^{7/3} \log^{1/3} n}$ time, $d$-dimensional axis-aligned unit hypercubes in $\OO{n^2 \log\log n}$ time for $d=3$ and $\OO{n^2 \log^{d-3} n}$ time for $d\geq4$, and $d$-dimensional axis-aligned boxes in $\OO{n^2 \log^{d-1.5} n}$ time for $d\geq2$. We also reduce the single-source shortest paths (SSSP) problem in unweighted geometric intersection graphs to decremental intersection detection. Thus, we obtain an $\OO{n \log n}$-time SSSP algorithm in unweighted intersection graphs of $n$ axis-aligned line segments.
description: Journal of Computational Geometry, Vol. 10 No. 1 (2019)
Disassembly of electric vehicle batteries using the example of the Audi Q5 hybrid system
Creators: name: Wegener, Kathirn
name: Andrew, Stefan
name: Raatz, Annika
name: Dröder, Klaus
name: Herrmann, Christoph
Publisher: name: Amsterdam : Elsevier
Year: 2014
Subjects: subject: Disassembly
subject: Planning approach
subject: Recycling
subject: Traction batteries
subject: Electric batteries
subject: Electric traction
subject: Electric vehicles
subject: Hybrid systems
subject: Hybrid vehicles
subject: Lithium
subject: Planning
subject: Secondary batteries
subject: Vehicles
subject: Battery recycling
subject: Disassembly sequence
subject: Disassembly systems
subject: Electric vehicle batteries
subject: Li-ion batteries
subject: Traction battery
subject: Work station
subject: Lithium batteries
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The rising number of electric vehicles comes along with an increasing demand for Li-Ion batteries. As resources such as lithium are valuable it is economically worthwhile to recycle EV batteries. One of the first steps of every battery recycling process is the disassembly, which can be a quite time and cost consuming process and hence has to be planned properly. Using the battery of the hybrid car Audi Q5 as a case study, a planning approach for the disassembly will be discussed in this paper. Therefore, disassembly sequences will be derived from a priority matrix and a disassembly graph will be drawn up. Finally, recommendations for the design of the disassembly system and work stations will be given.
Li-Si thin films for battery applications produced by ion-beam co-sputtering
Creators: name: Strauss, Florian
name: Hüger, Erwin
name: Heitjans, Paul
name: Trouillet, Vanessa
name: Bruns, Michael
name: Schmidt, Harald
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2015
Subjects: subject: solid-state nmr
subject: photoelectron-spectroscopy
subject: lithium
subject: silicon
subject: electrodes
subject: Li12Si7
subject: relaxometry
subject: lithiation
subject: stability
subject: anodes
subject: Festkörper-NMR
subject: Photoelektronenspektroskopie
subject: Lithium
subject: Silizium
subject: Elektroden
subject: Relaxometrie
subject: Lithiierung
subject: Anode
subject: Photoelektronenspektroskopie
subject: Lithium
subject: Silicium
subject: Elektrode
subject: Lithiierung
subject: Anode
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Amorphous lithium–silicon compounds are promising materials in order to improve pure silicon as a high-capacity anode material in lithium-ion batteries. We demonstrated that it is possible to produce amorphous LixSi (x ~ 0.4) thin films by reactive ion-beam cosputtering of a segmented solid state target composed of metallic lithium and elemental silicon. At the surface a graded LixSiOy layer of some nanometer thickness is formed by contact with air which seems to prevent decomposition of the LixSi.
Long-lived oscillatory incoherent electron dynamics in molecules: trans-polyacetylene oligomers
Creators: name: Franco, Ignacio
name: Rubio, Angel
name: Brumer, Paul
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We identify an intriguing feature of the electron-vibrational dynamics of molecular systems via a computational examination of \emph{trans}-polyacetylene oligomers. Here, via the vibronic interactions, the decay of an electron in the conduction band resonantly excites an electron in the valence band, and vice versa, leading to oscillatory exchange of electronic population between two distinct electronic states that lives for up to tens of picoseconds. The oscillatory structure is reminiscent of beating patterns between quantum states and is strongly suggestive of the presence of long-lived molecular electronic coherence. Significantly, however, a detailed analysis of the electronic coherence properties shows that the oscillatory structure arises from a purely incoherent process. These results were obtained by propagating the coupled dynamics of electronic and vibrational degrees of freedom in a mixed quantum-classical study of the Su-Schrieffer-Heeger Hamiltonian for polyacetylene. The incoherent process is shown to occur between degenerate electronic states with distinct electronic configurations that are indirectly coupled via a third auxiliary state by the vibronic interactions. A discussion of how to construct electronic superposition states in molecules that are truly robust to decoherence is also presented.
Approximate shortest paths and distance oracles in weighted unit-disk graphs
Creators: name: Chan, Timothy M.
name: Skrepetos, Dimitrios
Publisher: name: Journal of Computational Geometry
Year: 2019

description: $\newcommand{\OO}[1]{O\left(#1\right)}\newcommand{\eps}{\varepsilon}$We present the first near-linear-time algorithm that computes a $(1+\eps)$-approximation of the diameter of a weighted unit-disk graph of $n$ vertices. Our algorithm requires $\OO{n \log^2 n}$ time for any constant $\eps>0$, so we considerably improve upon the near-$\OO{n^{3/2}}$-time algorithm of Gao and Zhang (2005). Using similar ideas we develop $(1+\eps)$-approximate \emph{distance oracles} of $\OO{1}$ query time with a likewise improvement in the preprocessing time, specifically from near $\OO{n^{3/2}}$ to $\OO{n \log^3 n}$. We also obtain similar new results for a number of related problems in the weighted unit-disk graph metric such as the radius and the bichromatic closest pair. As a further application we employ our distance oracle, along with additional ideas, to solve the $(1+\eps)$-approximate \emph{all-pairs bounded-leg shortest paths\/} (apBLSP) problem for a set of $n$ planar points. Our data structure requires $\OO{n^2 \log n}$ space, $\OO{\log{\log n}}$ query time, and nearly $\OO{n^{2.579}}$ preprocessing time for any constant $\eps>0$, and is the first that breaks the near-cubic preprocessing time bound given by Roditty and Segal (2011).
description: Journal of Computational Geometry, Vol. 10 No. 2 (2019): Special Issue of Selected Papers from SoCG 2018
Improving Diffusion-Based Molecular Communication with Unanchored Enzymes
Creators: name: Noel, Adam
name: Cheung, Karen C.
name: Schober, Robert
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: In this paper, we propose adding enzymes to the propagation environment of a diffusive molecular communication system as a strategy for mitigating intersymbol interference. The enzymes form reaction intermediates with information molecules and then degrade them so that they have a smaller chance of interfering with future transmissions. We present the reaction-diffusion dynamics of this proposed system and derive a lower bound expression for the expected number of molecules observed at the receiver. We justify a particle-based simulation framework, and present simulation results that show both the accuracy of our expression and the potential for enzymes to improve communication performance.
description: 15 pages, 4 figures, presented at the 7th International Conference on Bio-Inspired Models of Network, Information, and Computing Systems (BIONETICS 2012) in Lugano, Switzerland
title: Две редакции акафиста Святым Царственным Страстотерпцам
Creators: name: Кошелева, Татьяна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Статья посвящена описанию структурных, языковых и стилистических особенностей акафиста Святым Царственным страстотерпцам, являющегося типичным образцом современного акафистного творчества. Анализ материала осуществлен в сравнении с лучшими русскими акафистами на церковнославянском языке.
Untersuchungen zum räumlichen aktiven Erddruck auf starre vertikale Bauteile im nichtbindigen Boden
Creators: name: Tom Wörden, Florian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Räumlicher aktiver Erddruck
subject: DEM
subject: FEM
subject: DIN 4085
subject: DIN 4126
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: [no abstract]
title: Имена новгородских храмов в современном ономастиконе
Creators: name: Шмелева, Татьяна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Предлагается описание названий храмов (экклезионимов) как фрагмента городского ономастикона. Представлена их типология, основанная на противопоставлении имен, мотивированных именами святых, христианскими понятиями и эпизодами евангельской истории. Первый тип имен представлен пятью разновидностями, отличие которых состоит в словах, характеризующих святого. Из имен второго типа охарактеризована наиболее подробно София ― важнейшее понятие для Великого Новгорода. Показано, как экклезионимы взаимодействуют с другими фрагментами городского ономастикона, выявлено три таких случая. Сделан вывод, что экклезионимы составляют одну из ономастических доминант ономастикона Великого Новгорода и вносят серьезный вклад в язык города, соединяя его с миром христианства. Высказана мысль о необходимости словаря имен храмов с объяснением всех входящих в него слов.
A Data Warehouse Design for a Typical University Information System
Creators: name: Bassil, Youssef
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Presently, large enterprises rely on database systems to manage their data and information. These databases are useful for conducting daily business transactions. However, the tight competition in the marketplace has led to the concept of data mining in which data are analyzed to derive effective business strategies and discover better ways in carrying out business. In order to perform data mining, regular databases must be converted into what so called informational databases also known as data warehouse. This paper presents a design model for building data warehouse for a typical university information system. It is based on transforming an operational database into an informational warehouse useful for decision makers to conduct data analysis, predication, and forecasting. The proposed model is based on four stages of data migration: Data extraction, data cleansing, data transforming, and data indexing and loading. The complete system is implemented under MS Access 2010 and is meant to serve as a repository of data for data mining operations.
description: LACSC - Lebanese Association for Computational Sciences, http://www.lacsc.org
title: К вопросу о производстве глазурованной керамики в средневековом Новгороде. Гипотетические предпосылки к практическим исследованиям
Creators: name: Околович, Марина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: С христианизацией Новгорода импульс к развитию получили технологически сложные виды обработки материалов. В статье рассматривается вопрос существования местного производства глазурованной керамики параллельно с развитием обработки стекла и металла. Визуальный анализ археологических фрагментов керамики свидетельствует о владении техникой восстановительного обжига, провести который можно только в особых камерах, как правило — в горнах.
title: Организация православных паломнических центров: архитектурный аспект
Creators: name: Робежник, Любовь
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Исследуется архитектурная типология существующих православных паломнических центров. Выделяются следующие типологические факторы архитектуры паломнических центров: развитость пространственной инфраструктуры, степень компактности архитектурных объектов, функциональная принадлежность объекта, наличие взаимосвязи с центром поклонения, ориентация на различные социальные группы. Акцентируется внимание на особенностях становления и развития паломнических центров и комплексов в России. Подробно описываются значимые паломнические комплексы.
How relevant is the predictive power of the h-index? A case study of the time-dependent Hirsch index
Creators: name: Schreiber, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Digital Libraries (cs.DL)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The h-index has been shown to have predictive power. Here I report results of an empirical study showing that the increase of the h-index with time often depends for a long time on citations to rather old publications. This inert behavior of the h-index means that it is difficult to use it as a measure for predicting future scientific output.
description: 6 pages, 4 figures, accepted for publication in Journal of Informetrics
title: Meervoudige raamovereenkomst voor CFD-modellering met OpenFOAM met betrekking tot stroming rond waterbouwkundige constructies: deelopdracht 1. CFD-modellering van de monding van de vispassage te Sint-Baafs-Vijve
Creators: name: Badano, Nicolas, N.
name: Breugem, Alexander
name: Decrop, Boudewijn
Publisher: name: IMDC
Year: 2021

description: Title : Volume : Issue : Pagination : 192
title: Опыт реконструкции швов в эстонских лубяных коробах с берестяными доньями и крышками
Creators: name: Ярыш, Владимир
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Статья посвящена реконструкции оригинального пришивного шва на эстонских этнографических коробах из луба с использованием бересты (берестяные донья, крышки, накладки на корпуса и обечайки крышек).
title: Православный русский царь. Духовно-нравственное значение образа правителя в воспитании
Creators: name: Гусакова, Виктория
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Рассматриваются тема державного служения и образ царя как ключевые концепты процесса духовно-нравственного воспитания школьников. Раскрытие этой темы через изучение литературных и художественных памятников ведет к усвоению школьниками понятий «отец», «Отечество», «служение Отечеству» и способствует воспитанию у них ответственности и смирения. Анализируется дидактическая значимость синонимичности понятий царь — государь — отец — батюшка и на ее основе формулируется вывод о сакральном содержании державного служения. Далее сделан экскурс в историю и рассмотрен процесс трансформации образа царя в народном сознании. Приведены примеры использования на занятиях со школьниками художественного образа державного правителя в живописи В.Васнецова, А.Кившенко, И.Репина, П.Рыженко, а также отечественной мультипликации. В заключении сделан вывод о целесообразности усвоения школьниками идеи державного служения, которая заключается в осмыслении государственной власти как служения Отечеству и избранничества как одной из сторон ответственности.
title: Neues von der Insel ?! - eine Buchbesprechung -
Creators: name: Wolfram, Sabine
Publisher: name: University Library Heidelberg
Year: 2015

description: Michael Shanks und Christopher Tilley: Re-Constructing Archaeology. Theory and Practice. New Studies in Archaeology. (Cambridge University Press, Cambridge 1987. ISBN 0 521 30141 6. 267 Seiten, 43 Abbildungen, 12 Tabellen)
description: Michael Shanks und Christopher Tilley: Re-Constructing Archaeology. Theory and Practice. New Studies in Archaeology. (Cambridge University Press, Cambridge 1987. ISBN 0 521 30141 6. 267 Seiten, 43 Abbildungen, 12 Tabellen)
Jones index, secret sharing and total quantum dimension
Creators: name: Fiedler, Leander
name: Naaijkens, Pieter
name: Osborne, Tobias J.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: quantum dimension
subject: quantum information
subject: secret sharing
subject: thermodynamic limit
subject: topological ordered states
subject: Entropy
subject: Information theory
subject: Quantum optics
subject: Quantum theory
subject: Topology
subject: Ordered state
subject: Thermodynamic limits
subject: Quantum entanglement
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the total quantum dimension in the thermodynamic limit of topologically ordered systems. In particular, using the anyons (or superselection sectors) of such models, we define a secret sharing scheme, storing information invisible to a malicious party, and argue that the total quantum dimension quantifies how well we can perform this task. We then argue that this can be made mathematically rigorous using the index theory of subfactors, originally due to Jones and later extended by Kosaki and Longo. This theory provides us with a 'relative entropy' of two von Neumann algebras and a quantum channel, and we argue how these can be used to quantify how much classical information two parties can hide form an adversary. We also review the total quantum dimension in finite systems, in particular how it relates to topological entanglement entropy. It is known that the latter also has an interpretation in terms of secret sharing schemes, although this is shown by completely different methods from ours. Our work provides a different and independent take on this, which at the same time is completely mathematically rigorous. This complementary point of view might be beneficial, for example, when studying the stability of the total quantum dimension when the system is perturbed.
Computation of extreme eigenvalues in higher dimensions using block tensor train format
Creators: name: Dolgov, Sergey V.
name: Khoromskij, Boris N.
name: Oseledets, Ivan V.
name: Savostyanov, Dmitry V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 15A18, 15A69, 65F15, 81T17, 82B28, 82B20

description: We consider an approximate computation of several minimal eigenpairs of large Hermitian matrices which come from high--dimensional problems. We use the tensor train format (TT) for vectors and matrices to overcome the curse of dimensionality and make storage and computational cost feasible. Applying a block version of the TT format to several vectors simultaneously, we compute the low--lying eigenstates of a system by minimization of a block Rayleigh quotient performed in an alternating fashion for all dimensions. For several numerical examples, we compare the proposed method with the deflation approach when the low--lying eigenstates are computed one-by-one, and also with the variational algorithms used in quantum physics.
description: Submitted to Comput Phys Comm
A generalized family of discrete PT-symmetric square wells
Creators: name: Znojil, Miloslav
name: Wu, Junde
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: N-site-lattice Hamiltonians H are introduced and perceived as a set of systematic discrete approximants of a certain PT-symmetric square-well-potential model with the real spectrum and with a non-Hermiticity which is localized near the boundaries of the interval. Its strength is controlled by one, two or three parameters. The problem of the explicit construction of a nontrivial metric which makes the theory unitary is then addressed. It is proposed and demonstrated that due to the not too complicated tridiagonal-matrix form of our input Hamiltonians the computation of the metric is straightforward and that its matrix elements prove obtainable, non-numerically, in elementary polynomial forms.
description: 21 pages, 2 figures
Density-induced geometric frustration of ultra-cold bosons in optical lattices
Creators: name: Mishra, Tapan
name: Greschner, Sebastian
name: Santos, Luis
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2016
Subjects: subject: kinetic frustration
subject: synthetic magnetism
subject: ultracold gases
subject: Bosons
subject: Crystal lattices
subject: Optical materials
subject: Attractive interactions
subject: Density dependent
subject: Density modulation
subject: Geometric frustration
subject: Hopping amplitude
subject: Momentum distributions
subject: Time of flight measurements
subject: Ultracold gas
subject: Optical lattices
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: A density-dependent gauge field may induce density-induced geometric frustration, leading to a non-trivial interplay between density modulation and frustration, which we illustrate for the particular case of ultra-cold bosons in zig-zag optical lattices with a density-dependent hopping amplitude. We show that the density-induced frustration leads to a rich landscape of quantum phases, including Mott insulator, bond-order insulator, two-component superfluids, chiral superfluids, and partially paired superfluids. We show as well that the density-dependent hopping results in an effective repulsive or attractive interaction, and that for the latter case the vacuum may be destabilized leading to a strong compressibility. Finally, we discuss the characteristic momentum distribution of the predicted phases, which can be used to detect the phases in time-of-flight measurements.
title: Исторические имена и символы Пскова в культурном пространстве современного города
Creators: name: Никифоров, Олег
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Анализируется восприятие исторических знаний жителями современного города. Сохранение историко-культурного наследия на региональном уровне предполагает знание местной истории, понимание смыслового наполнения городской символики, освоение регионального культурного пространства. Представлены результаты опроса об основных моментах псковской истории, запечатлевшихся в памяти жителей и гостей города, о людях и символах Пскова, об известных городских легендах. В результате проведенного исследования составлен перечень актуальных имен и символов, закрепившихся в сознании псковичей. Анализ полученных данных демонстрирует, что несмотря на отсутствие материальных носителей в аутентичном выражении, значительную удаленность от современности именно древний период истории города наложил наибольший отпечаток на историческую память, люди и артефакты той эпохи выступают именами и символами, которые знакомы жителям города и приезжающим для получения образования студентам.
Nonquasiparticle states in the half-metallic ferromagnet simulated by the two-band Hubbard model
Creators: name: Nakano, K.
name: Shirakawa, T.
name: Ohta, Y.
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2010
Subjects: subject: Density matrix renormalization group
subject: Diagonalization techniques
subject: Double exchange mechanism
subject: Double string
subject: Ferromagnetic exchange interaction
subject: Half-metallic ferromagnets
subject: Hubbard
subject: Ladder model
subject: Lanczos
subject: Single-particle spectral function
subject: Small clusters
subject: Two-band Hubbard model
subject: Chromium
subject: Computer simulation
subject: Electronic states
subject: Ferromagnetic materials
subject: Hubbard model
subject: Magnets
subject: Spectroscopy
subject: Statistical mechanics
subject: Strontium compounds
subject: Superconducting materials
subject: Ferromagnetism
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The density-matrix renormalization group method is used to study the three-band zigzag ladder model that simulates the electronic state of the t 2g-orbital system of the double string of the edge-shared CrO 6 octahedra in the half-metallic ferromagnet K2Cr 8O16. The saturated ferromagnetism caused by the double-exchange mechanism is thereby demonstrated. We also use the Lanczos exact-diagonalization technique on small clusters to study the two Hubbard chains coupled with the ferromagnetic exchange interaction, whereby we consider the nonquasiparticle states in the half-metallic ferromagnet that appear in the single-particle spectral function.
Heat-induced damping modification in YIG/Pt hetero-structures
Creators: name: Jungfleisch, M. B.
name: An, T.
name: Ando, K.
name: Kajiwara, Y.
name: Uchida, K.
name: Vasyuchka, V. I.
name: Chumak, A. V.
name: Serga, A. A.
name: Saitoh, E.
name: Hillebrands, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron garnet/platinum (YIG/Pt) hetero-structure: the damping is either increased or decreased depending on the sign of the temperature gradient. This effect might be explained by a thermally-induced spin torque on the magnetization precession. The heat-induced variation of the damping is detected by microwave techniques as well as by a DC voltage caused by spin pumping into the adjacent Pt layer and the subsequent conversion into a charge current by the inverse spin Hall effect.
A low-power, low-noise 37-MHz photoreceiver for intersatellite laser interferometers using discrete heterojunction bipolar transistors
Creators: name: Barranco, German Fernandez
name: Sheard, Benjamin S.
name: Dahl, Christian
name: Mathis, Wolfgang
name: Heinzel, Gerhard
Publisher: name: Piscataway, NJ : Institute of Electrical and Electronics Engineers Inc.
Year: 2018
Subjects: subject: Bandwidth
subject: geodesy
subject: gravitational waves
subject: heterodyne laser interferometry
subject: Heterojunction bipolar transistors
subject: Integrated circuits
subject: Interferometers
subject: intersatellite metrology
subject: Laser beams
subject: photoreceiver
subject: Power demand
subject: transimpedance amplifier
subject: Bipolar integrated circuits
subject: Electric power utilization
subject: Gallium alloys
subject: Gallium compounds
subject: Geodesy
subject: Gravity waves
subject: Heterojunctions
subject: Indium alloys
subject: Laser interferometry
subject: Operational amplifiers
subject: Semiconducting indium gallium arsenide
subject: Semiconductor alloys
subject: Electrical signal
subject: Experimental characterization
subject: Heterodyne laser interferometry
subject: Laser interferometer
subject: Photoreceivers
subject: Power demands
subject: Quadrant photodiodes
subject: Total power consumption
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Intersatellite laser interferometers feature quadrant photoreceivers to produce electrical signals from the interfered optical beams. In the particular case of LISA, the expected optical AC beat note has an amplitude of the order of nW. This requires photoreceivers with an input current noise density of a few pA Hz–1/2 in each channel up to 25MHz. Additionally, the significant number of photoreceivers in a single spacecraft imposes tight constraints on the power consumption per device. We present the experimental characterization of a quadrant photoreceiver based on discrete heterojunction bipolar transistors and an off-the-shelf 0.5 mm diameter InGaAs quadrant photodiode, showing an input current noise density of 1:9 pA Hz–1/2 at 25MHz, a 3 dB bandwidth of 37MHz and a total power consumption of 178mW. CCBY
Food Cycles: Active Engagement and New Urban Communities
Creators: name: Scaffidi, Federica
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food cycles
subject: social innovation
subject: urban communities
subject: local resources
subject: european experiences
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: In recent years, researchers and practioners have paid increasing attention to the field of food, nutrition, sustainability, innovative and traditional productivity, and how they affect communities. The present paper analyses the contemporary literature and aims to explore the current situation in Europe. In this study, three european experiences of social innovation in food production and consumption are analysed and compared. The article presents a review of these studies and shows risks, limits, and opportunities. The results reveal that new urban communities can be the engine of creative food cycles and local development. In conclusion, this study represents a contribution to the existing body of knowledge and presents implications of the results and possible future research directions.
Food Revolution. Services and Social Innovation as a Reaction to Lockdown
Creators: name: Olivastri, Chiara
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food
subject: social changes
subject: services
subject: technology
subject: new post-pandemic scenarios
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: The global coronavirus pandemic is revealing major weaknesses, inequities, and system-wide risks in global food systems, renewing the urgency to foster novel pathways towards a greater sustainability and resilience of supply chains. This emergency not only has affected human beings, but also caused crisis in the entire economic, political, and social spheres. Yet, in these situations the resilience of society as a whole can be measured. The purpose of this paper is to analyse the initiatives adopted in the food sector during the pandemic that have contributed to the creation of new supply chains, new behaviours and good practices leveraging social innovation. The service sector has been a fertile ground to convert and revive different activities and, as designers, we observe and interpret these phenomena to turn the health emergency into a new scenario of virtuous practices.
Zitsa Wine Hub
Creators: name: Nikolovgenis, Andreas
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: Zitsa
subject: wine
subject: agricultur
subject: education
subject: agro-tourism
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Zitsa is a village belonging to the north-western region of Epirus in Greece where the homonymous “Zitsa” wine is produced, from the local PDO Debina variety. The location is an aggregation of villages as Chianti or Rioja. The phylloxera pest in the 1970s together with the shift of Greece's economy towards the tertiary sector, led to the fleeing of the population and to the partial cultivation of the land. Despite its small size, Zitsa has a hyperlocal character. The current, milder climate enhances the quality of Debina wine. This coincides with the planned experimental planting of almost 32 extinct local varieties of Epirus vines. These two factors create the momentum for the area’s re-planning into a hyper-local centre of wine in Epirus and Greece. This will promote social innovation based on wine production, however with a twist, by introducing complementary programmes of education, culture and sustainable agro-tourism.
Design for Companion Species: Developing Collaborative Multispecies Urban Environments
Creators: name: Farinea, Chiara
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: anthropocene
subject: nature-based solutions
subject: design
subject: multispecies environments
subject: bio-integration
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: The Urban Environment has been developed through centuries as a complex machine to host human beings and their activities, excluding external factors disturbing anthropogenic activities. Part of this process consisted in excluding the so-called “nature” (except a few selected species) from cities. However, a new consciousness about the effects of anthropogenic activities on our planet and about the regulating properties of nature on the environment is bringing us to reconsider the introduction of nature in cities, rethinking our cities as environments built to host multispecies co-existence and collaboration.
Alisma plantago-aquatica L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. Plantago-aquatica L. Cat. 331. 3:VülyobRiddes,etwa 1250m (F.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Charged particle motion in Kerr-Newmann space-times
Creators: name: Hackmann, Eva
name: Xu, Hongxiao
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The motion of charged test-particles in the gravitational field of a rotating and electromagnetically charged black hole as described by the Kerr-Newman metric is considered. We completely classify the colatitudinal and radial motion on the extended manifold $-\infty \leq r \leq \infty$, including orbits crossing the horizons or $r=0$. Analytical solutions of the equations of motion in terms of elliptic functions are presented which are valid for all types of orbits.
description: 25 pages, 13 figures
Compressive Object Tracking using Entangled Photons
Creators: name: Magaña-Loaiza, Omar S.
name: Howland, Gregory A.
name: Malik, Mehul
name: Howell, John C.
name: Boyd, Robert W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a compressive sensing protocol that tracks a moving object by removing static components from a scene. The implementation is carried out on a ghost imaging scheme to minimize both the number of photons and the number of measurements required to form a quantum image of the tracked object. This procedure tracks an object at low light levels with fewer than 3% of the measurements required for a raster scan, permitting us to more effectively use the information content in each photon.
description: 10 pages, 4 figures
Generalized Theory of Forster-type Nonradiative Energy Transfer in Nanostructures with Mixed Dimensionality
Creators: name: Hernandez-Martinez, P. L.
name: Govorov, A. O.
name: Demir, H. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Forster-type nonradiative energy transfer (NRET) is widely used, especially utilizing nanostructures in different combinations and configurations. However, the existing well-accepted Forster theory is only for the case of a single particle serving as a donor together with another particle serving as an acceptor. There are also other special cases previously studied; however, there is no complete picture and unified understanding. Therefore, there is a strong need for a complete theory that models Forster-type NRET for the cases of mixed dimensionality including all combinations and configurations. We report a generalized theory for the Forster-type NRET, which includes the derivation of the effective dielectric function due to the donor in different confinement geometries and the derivation of transfer rates distance dependencies due to the acceptor in different confinement geometries, resulting in a complete picture and understanding of the mixed dimensionality.
The carbon-to-oxygen ratio in stars with planets
Creators: name: Nissen, Poul Erik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In some recent works, the C/O abundance ratio in high-metallicity stars with planets is found to vary from 0.4 to about 1.0. This has led to discussions about the existence of terrestrial planets with a carbon-dominated composition that is very different from the composition of the Earth. The C/O values were obtained by determining carbon abundances from high-excitation CI lines and oxygen abundances from the forbidden [OI] line at 6300 A. This weak line is, however, strongly affected by a nickel blend at high metallicities. Aiming for more precise C/O ratios, oxygen abundances in this paper are derived from the high-excitation OI triplet at 7774 A and carbon abundances from the CI lines at 5052 and 5380 A using MARCS model atmospheres and including non-LTE corrections. The results do not confirm the high C/O ratios previously found. C/O shows a tight, slightly increasing dependence on metallicity from C/O=0.58 at [Fe/H]=0.0 to C/O=0.70 at [Fe/H] =0.4 with an rms scatter of only 0.06. Assuming that the composition of a proto-planetary disk is the same as that of the host star, the C/O values found in this paper lend no support to the existence of carbon-rich planets. The small scatter of C/O among thin-disk stars suggests that the nucleosynthesis products of Type II supernovae and low- to intermediate-mass stars are well mixed in the interstellar medium.
description: 10 pages, 11 figures, accepted for publication in A&A