cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Wigner distribution and 2D classical maps
Creators: name: Sakhr, Jamal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The Wigner spacing distribution has a long and illustrious history in nuclear physics and in the quantum mechanics of classically chaotic systems. In this paper, a novel connection between the Wigner distribution and 2D classical mechanics is introduced. The hypothesis that typical pseudo-trajectories of a 2D ergodic map have a Wignerian nearest-neighbor spacing distribution is put forward and numerically tested. The standard Euclidean metric is used to compute the interpoint spacings. In all test cases, the hypothesis is upheld, and the range of validity of the hypothesis appears to be robust in the sense that it is not affected by the presence or absence of: (i) mixing; (ii) time-reversal symmetry; and/or (iii) dissipation.
description: Low-resolution figures (as before); non-generic example added; higher-order spacings briefly discussed
Additional file 1 of Bioprospecting of endophytic actinobacterium associated with Aloe ferox mill for antibacterial activity
Creators: name: Maliehe, Tsolanku Sidney
name: Mbambo, Melusi
name: Ngidi, Londeka Sibusisiwe
name: Shandu, Jabulani Siyabonga Emmanuel
name: Pooe, Ofentse Jacob
name: Masoko, Peter
name: Selepe, Tlou Nelson
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Table S1. Chemical constituents of the extracted secondary metabolites identified by GC-MS.
Kontextualisierung von Mathematikinhalten für Schülerinnen und Schüler mit geistiger Behinderung. Analyse und Erweiterung des Mathematiklehrmittels «Mathwelt 1»
Creators: name: Bader, Patrizia
Publisher: name: Zenodo
Year: 2022
Subjects: Sonderpädagogik
Masterarbeit
Kontextualisierung von Mathematikinhalten
Mathwelt 1

description: Die Kontextualisierung von mathematischen Fachinhalten in Alltags- und Anwendungssituationen ist eine Möglichkeit, um Kinder und Jugendliche mit einer geistigen Behinderung bei der Erschliessung der Inhalte wirksam zu unterstützen. Durch einen Bezug zur Lebens- und Erfahrungswelt der Schülerinnen und Schüler wird Lernen anschlussfähig gemacht. Im Rahmen dieser Arbeit wurde in einer ersten Phase mittels einer qualitativen Inhaltsanalyse untersucht, welche Kontexte im Lehrmittel «Mathwelt 1» beschrieben sind. Die Ergebnisse zeigen auf, dass die Kontextualisierung der Lerninhalte vorwiegend durch eine Einbettung in inner- oder aussermathematische Themen stattfindet und dass Lebensweltbezüge auf unterschiedliche Weise erreicht werden. Die Inhalte des Lehrmittels wurden in einer zweiten Phase durch ergänzende Unterrichtsvorschläge in Alltags- und Anwendungssituationen sowie in ausserschulischen Lernorten erweitert. Mit dieser Ideensammlung werden konkrete Beispiele für die Unterrichtspraxis aufgezeigt.
Spin-charge-family theory is offering next step in understanding elementary particles and fields and correspondingly universe
Creators: name: Borstnik, Norma Susana Mankoc
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: More than 40 years ago the standard model made a successful new step in understanding properties of fermion and boson fields. Now the next step is needed, which would explain what the standard model and the cosmological models just assume: a. The origin of quantum numbers of massless one family members. b. The origin of families. c. The origin of the vector gauge fields. d. The origin of the Higgses and Yukawa couplings. e. The origin of the dark matter. f. The origin of the matter-antimatter asymmetry. g. The origin of the dark energy. h. And several other open problems. The spin-charge-family theory, a kind of the Kaluza-Klein theories in $(d=(2n-1) +1)$ - space-time, with $d=(13+1)$ and the two kinds of the spin connection fields, which are the gauge fields of the two kinds of the Clifford algebra objects anti-commuting with one another, may provide this much needed next step. The talk presents: i. A short presentation of this theory. ii. The review over the achievements of this theory so far, with some not published yet achievements included. iii. Predictions for future experiments.
description: 42 pages, IOP Proceedings style, Proceedings to the Conference on Cosmology, Gravitational Waves and Particles, IARD conferences, Ljubljana, 6-9 June 2016, The 10^th Biennial Conference on Classical and Quantum Relativistic Dynamics of Particles and Fields,Appeared in proceedings of this conference. arXiv admin note: text overlap with arXiv:1312.1542
Revealing the properties of the radical-pair magnetoreceptor using pulsed photo-excitation timed with pulsed rf
Creators: name: Mouloudakis, K.
name: Kominis, I. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The radical-pair mechanism is understood to underlie the magnetic navigation capability of birds and possibly other species. Experiments with birds have provided indirect and in cases conflicting evidence on the actual existence of this mechanism. We here propose a new experiment that can unambiguously identify the presence of the radical-pair magnetoreceptor in birds and unravel some of its basic properties. The proposed experiment is based on modulated light excitation with a pulsed laser, combined with delayed radio-frequency magnetic field pulses. We predict a resonance effect in the birds' magnetic orientation versus the rf-pulse delay time. The resonance's position reflects the singlet-triplet mixing time of the magnetoreceptor.
description: 5 pages, 5 figures
Some results in support of the Kakeya Conjecture
Creators: name: Fraser, Jonathan M.
name: Olson, Eric J.
name: Robinson, James C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A80, 54E52, 28A75

description: A Besicovitch set is a subset of $\R^d$ that contains a unit line segment in every direction and the famous Kakeya conjecture states that Besicovitch sets should have full dimension. We provide a number of results in support of this conjecture in a variety of contexts. Our proofs are simple and aim to give an intuitive feel for the problem. For example, we give a very simple proof that the packing and lower box-counting dimension of any Besicovitch set is at least $(d+1)/2$ (better estimates are available in the literature). We also study the `generic validity' of the Kakeya conjecture in the setting of Baire Category and prove that typical Besicovitch sets have full upper box-counting dimension. We also study a weaker version of the Kakeya problem where unit line segments are replaced by half-infinite lines. We prove that such `half-extended Besicovitch sets' have full Assouad dimension. This can be viewed as full resolution of a (much weakened) version of the Kakeya problem.
description: 17 pages. Incorporated referee suggestions, improved results in section 4, to appear in Real Analysis Exchange
Correlation Analysis of Maternal Age and Common Factors
Creators: name: Huang, Bixuan
Publisher: name: Zenodo
Year: 2018
Subjects: Python
Correlation Analysis
Data Mining
Linear Regression
Maternal Age

description: The trend women postponing the time getting pregnant happened in many countries these years. Despite there is no best certain time of getting pregnant, detecting the correlation between women’s maternal age and common influencing factors is meaningful for both policy makers to formulate incentive policies and the public to have the awareness of planning for the time of childbearing.

Based on the literature research before the data mining process, education factor, labor force participation and economic uncertainty are selected as the common factors in this  correlation analysis. The correlation analysis used data mining with Python and Python packages. International data over the time period from 1998 to 2016 are selected. The data is from OECD Family database, OECD Stat and the world bank. Because of availability of the data, 22 countries are chosen as the objects -- Austria, Belgium, Czech Republic, Estonia, Finland, Greece, Hungary, Iceland, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovenia, Spain, Sweden, Switzerland, United Kingdom, Bulgaria, Cyprus, Romania.
title: Modeling random crawling, membrane deformation and intracellular polarity of motile amoeboid cells
Creators: name: Alonso, Sergio
name: Stange, Maike
name: Beta, Carsten
Publisher: name: Universität Potsdam
Year: 2020

description: Amoeboid movement is one of the most widespread forms of cell motility that plays a key role in numerous biological contexts. While many aspects of this process are well investigated, the large cell-to-cell variability in the motile characteristics of an otherwise uniform population remains an open question that was largely ignored by previous models. In this article, we present a mathematical model of amoeboid motility that combines noisy bistable kinetics with a dynamic phase field for the cell shape. To capture cell-to-cell variability, we introduce a single parameter for tuning the balance between polarity formation and intracellular noise. We compare numerical simulations of our model to experiments with the social amoeba Dictyostelium discoideum. Despite the simple structure of our model, we found close agreement with the experimental results for the center-of-mass motion as well as for the evolution of the cell shape and the overall intracellular patterns. We thus conjecture that the building blocks of our model capture essential features of amoeboid motility and may serve as a starting point for more detailed descriptions of cell motion in chemical gradients and confined environments.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 1014
Additional file 1 of Deep learning-based automatic-bone-destruction-evaluation system using contextual information from other joints
Creators: name: Miyama, Kazuki
name: Bise, Ryoma
name: Ikemura, Satoshi
name: Kai, Kazuhiro
name: Kanahori, Masaya
name: Arisumi, Shinkichi
name: Uchida, Taisuke
name: Nakashima, Yasuharu
name: Uchida, Seiichi
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 1: Table S1. Final settings of hyperparameters (erosion). Each classification model’s final settings of hyperparameters for each target joint are shown. “Wrist” represents the navicular, the lunate, the radius, and the ulna. Note: FC, fully connected; PIP, proximal interphalangeal; IP, interphalangeal; MCP, metacarpophalangeal; CMC-M, carpometacarpal joint of the thumb and multangular.
On the Continuity of the Secrecy Capacity of Compound and Arbitrarily Varying Wiretap Channels
Creators: name: Boche, Holger
name: Schaefer, Rafael F.
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The wiretap channel models secure communication between two users in the presence of an eavesdropper who must be kept ignorant of transmitted messages. The performance of such a system is usually characterized by its secrecy capacity which determines the maximum transmission rate of secure communication. In this paper, the issue of whether or not the secrecy capacity is a continuous function of the system parameters is examined. In particular, this is done for channel uncertainty modeled via compound channels and arbitrarily varying channels, in which the legitimate users know only that the true channel realization is from a pre-specified uncertainty set. In the former model, this realization remains constant for the entire duration of transmission, while in the latter the realization varies from channel use to channel use in an unknown and arbitrary manner. These models not only capture the case of channel uncertainty, but are also suitable for modeling scenarios in which a malicious adversary jams or otherwise influence the legitimate transmission. The secrecy capacity of the compound wiretap channel is shown to be robust in the sense that it is a continuous function of the uncertainty set. Thus, small variations in the uncertainty set lead to small variations in secrecy capacity. On the other hand, the deterministic secrecy capacity of the \emph{arbitrarily varying wiretap channel} is shown to be discontinuous in the uncertainty set meaning that small variations can lead to dramatic losses in capacity.
description: 17 pages, 3 figures, final version
title: Shared sulfur mobilization routes for tRNA thiolation and molybdenum cofactor biosynthesis in prokaryotes and eukaryotes
Creators: name: Leimkühler, Silke
name: Bühning, Martin
name: Beilschmidt, Lena
Publisher: name: Universität Potsdam
Year: 2020

description: Modifications of transfer RNA (tRNA) have been shown to play critical roles in the biogenesis, metabolism, structural stability and function of RNA molecules, and the specific modifications of nucleobases with sulfur atoms in tRNA are present in pro- and eukaryotes. Here, especially the thiomodifications xm(5)s(2)U at the wobble position 34 in tRNAs for Lys, Gln and Glu, were suggested to have an important role during the translation process by ensuring accurate deciphering of the genetic code and by stabilization of the tRNA structure. The trafficking and delivery of sulfur nucleosides is a complex process carried out by sulfur relay systems involving numerous proteins, which not only deliver sulfur to the specific tRNAs but also to other sulfur-containing molecules including iron-sulfur clusters, thiamin, biotin, lipoic acid and molybdopterin (MPT). Among the biosynthesis of these sulfur-containing molecules, the biosynthesis of the molybdenum cofactor (Moco) and the synthesis of thio-modified tRNAs in particular show a surprising link by sharing protein components for sulfur mobilization in pro- and eukaryotes.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 1015
The topological pigeonhole principle for ordinals
Creators: name: Hilton, Jacob
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E02

description: Given a cardinal $κ$ and a sequence $\left(α_i\right)_{i\inκ}$ of ordinals, we determine the least ordinal $β$ (when one exists) such that the topological partition relation \[β\rightarrow\left(top\,α_i\right)^1_{i\inκ}\] holds, including an independence result for one class of cases. Here the prefix "$top$" means that the homogeneous set must have the correct topology rather than the correct order type. The answer is linked to the non-topological pigeonhole principle of Milner and Rado.
description: 24 pages
Supplementary document for A model of dynamic speckle evolution for evaluating laser speckle contrast measurements of tissue dynamics - 6107708.pdf
Creators: name: Zilpelwar, Sharvari
name: Postnov, Dmitry
name: Chen, Anderson
name: Zimmerman, Bernhard
name: Sie, Edbert
name: Marsili, Francesco
name: Boas, David
name: Cheng, Xiaojun
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplementary Material
Classical phase space and Hadamard states in the BRST formalism for gauge field theories on curved spacetime
Creators: name: Wrochna, Michał
name: Zahn, Jochen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate linearized gauge theories on globally hyperbolic spacetimes in the BRST formalism. A consistent definition of the classical phase space and of its Cauchy surface analogue is proposed. We prove that it is isomorphic to the phase space in the subsidiary condition approach of Hack and Schenkel in the case of Maxwell, Yang-Mills, and Rarita-Schwinger fields. Defining Hadamard states in the BRST formalism in a standard way, their existence in the Maxwell and Yang-Mills case is concluded from known results in the subsidiary condition (or Gupta-Bleuler) formalism. Within our framework, we also formulate criteria for non-degeneracy of the phase space in terms of BRST cohomology and discuss special cases. These include an example in the Yang-Mills case, where degeneracy is not related to a non-trivial topology of the Cauchy surface.
description: final version, published in Rev. Math. Phys
Preparation of edge states by shaking boundaries
Creators: name: Shi, Z. C.
name: Hou, S. C.
name: Wang, L. C.
name: Yi, X. X.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Preparing topological states of quantum matter, such as edge states, is one of the most important directions in condensed matter physics. In this work, we present a proposal to prepare edge states in Aubry-Andr$\acute{\textrm{e}}$-Harper (AAH) model with open boundaries, which takes advantage of Lyapunov control to design operations. We show that edge states can be obtained with almost arbitrary initial states. A numerical optimalization for the control is performed and the dependence of control process on the system size is discussed. The merit of this proposal is that the shaking exerts only on the boundaries of the model. As a by-product, a topological entangled state is achieved by elaborately designing the shaking scheme.
description: 11 pages, 11 figures
Additional file 2 of Deep learning-based automatic-bone-destruction-evaluation system using contextual information from other joints
Creators: name: Miyama, Kazuki
name: Bise, Ryoma
name: Ikemura, Satoshi
name: Kai, Kazuhiro
name: Kanahori, Masaya
name: Arisumi, Shinkichi
name: Uchida, Taisuke
name: Nakashima, Yasuharu
name: Uchida, Seiichi
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 2: Table S2. Final settings of hyperparameters (JSN). Each classification model’s final settings of hyperparameters for each target joint are shown. "Wrist" represents the multangular-navicular, the capitate-navicular-lunate, and the radiocarpal joint. Note: JSN, joint space narrowing; FC, fully connected; PIP, proximal interphalangeal; MCP, metacarpophalangeal; CMC, carpometacarpal.
Aufgabensammlung zur Marktform der vollständigen Konkurrenz
Creators: name: Egli, Hannes (Co-Autor/in)
name: Brouwer, Menno (Co-Autor/in)
name: Bruni, Stefan (Co-Autor/in)
Publisher: name: Zenodo
Year: 2018
Subjects: Vollständige Konkurrenz
Aufgabensammlung
Gewinnmaximierung

description: Die Aufgabensammlung zur Marktform der vollständigen Konkurrenz beinhaltet Aufgaben und einen didaktischen Reflexionsbericht. Ausgerichtet ist die Aufgabensammlung auf den Unterricht an Fachhochschulen. Im Zentrum steht eine ökonomisch-intuitive Vermittlung des Unterrichtsstoffs mit einem hohen Anteil an interaktiven Elementen zwischen den Studentinnen/en und der/dem Dozentin/en.
description: + ID der Publikation: hslu_57360 + Art des Beitrages: Andere + Zielgruppe / Unterrichtsstufe: Bachelor, Fachhochschule + Sprache: Deutsch + Letzte Aktualisierung: 2018-12-17 17:01:52
Sequential rectifiable spaces of countable $cs^*$-character
Creators: name: Banakh, Taras
name: Repovs, Dusan
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54D55, 54D50, 54H10, 22A22, 22A30

description: We prove that each non-metrizable sequential rectifiable space $X$ of countable $cs^*$-character contains a clopen rectifiable submetrizable $k_ω$-subspace $H$ and admits an open disjoint cover by subspaces homeomorphic to clopen subspaces of $H$. This implies that each sequential rectifiable space with countable $cs^*$-character either is metrizable or else is a topological sum of submetrizable $k_ω$-spaces. Consequently, $X$ is submetrizable and paracompact. This answers a question of Lin and Shen posed in 2011.
description: 12 pages
Supplementary document for Biomass measurements of single neurites in vitro using optical wavefront microscopy - 6085467.pdf
Creators: name: Durdevic, Ljiljana
name: gines, Aroa Relano
name: Roueff, Antoine
name: Blivet, Guillaume
name: Baffou, Guillaume
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Neuroscience

description: Supplementary Material file gathering all the supplementary figures and comments.
title: Editorial: Mensch-Computer- Interaktion und Social Computing in Krisensituationen
Creators: name: Reuter, Christian
name: Ludwig, Thomas
name: Pipek, Volkmar
name: Herczeg, Michael
name: Mentler, Tilo
name: Nestler, Simon
name: Sautter, Johannes
Publisher: name: De Gruyter
Year: 2023

description: Mensch-Computer-Interaktion und Social Computing spielen auch in Krisensituationen eine große Rolle. Durch die größere Verbreitung mobiler und ubiquitärer Technologien sowie die zunehmende Durchdringung sozialer und kooperativer Medien im Alltag haben sich auch im Bereich des Krisenmanagements und der zivilen Sicherheitsforschung neue Möglichkeiten und Potenziale, aber auch Problembereiche entwickelt, die besonderer Aufmerksamkeit bedürfen. Neue Ansätze und Prototypen adressieren Interaktionen und Kooperationen innerhalb und zwischen klassischen Behörden und Organisationen mit Sicherheitsaufgaben (BOS), aber zunehmend auch die Einbeziehung der von der Krise betroffenen Akteure aus den Bereichen der Industrie und der Bürger, die eine Rolle als aktive Krisenmanager wahrnehmen und BOS unterstützen
title: Fungal Communities in Sediments Along a Depth Gradient in the Eastern Tropical Pacific
Creators: name: Rojas-Jimenez, Keilor
name: Grossart, Hans-Peter
name: Cordes, Erik
name: Cortés, Jorge
Publisher: name: Universität Potsdam
Year: 2020

description: Deep waters represent the largest biome on Earth and the largest ecosystem of Costa Rica. Fungi play a fundamental role in global biogeochemical cycling in marine sediments, yet, they remain little explored. We studied fungal diversity and community composition in several marine sediments from 16 locations sampled along a bathymetric gradient (from a depth of 380 to 3,474 m) in two transects of about 1,500 km length in the Eastern Tropical Pacific (ETP) of Costa Rica. Sequence analysis of the V7-V8 region of the 18S rRNA gene obtained from sediment cores revealed the presence of 787 fungal amplicon sequence variants (ASVs). On average, we detected a richness of 75 fungal ASVs per sample. Ascomycota represented the most abundant phylum with Saccharomycetes constituting the dominant class. Three ASVs accounted for ca. 63% of all fungal sequences: the yeast Metschnikowia (49.4%), Rhizophydium (6.9%), and Cladosporium (6.7%). We distinguished a cluster composed mainly by yeasts, and a second cluster by filamentous fungi, but we were unable to detect a strong effect of depth and the overlying water temperature, salinity, dissolved oxygen (DO), and pH on the composition of fungal communities. We highlight the need to understand further the ecological role of fungi in deep-sea ecosystems.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 1013
Nielsen realisation for untwisted automorphisms of right-angled Artin groups
Creators: name: Hensel, Sebastian
name: Kielak, Dawid
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We prove Nielsen realisation for finite subgroups of the groups of untwisted outer automorphisms of RAAGs in the following sense: given any graph $Γ$, and any finite group $G\leqslant \mathrm{U}^0(A_Γ) \leqslant \mathrm{Out}^0(A_Γ)$, we find a non-positively curved cube complex with fundamental group $A_Γ$ on which $G$ acts by isometries, realising the action on $A_Γ$.
description: 60 pages, 3 figures; major rewrite. Extended results to all dimensions. The relative Nielsen realisation for free groups proved in the previous version is now contained in a separate paper (arXiv:1601.02187)
OLIMPIZM GʻOYALARI TARGʻIBOTI-O'QUVCHI YOSHLAR VA OILADA SOGʻLOM MUHIT TARZINI  SHAKLLANTIRUVCHI HODISALAR
Creators: name: Evatov, Saminjon
Publisher: name: Zenodo
Year: 2023

description: O'zbekiston Respublikasi mustaqillikni qo'lga kiritgach sport sohasiga alohida e'tibor qaratilib, bu sohada tub o'zgarishlar ro'y bermoqda, nafaqat ta'lim muassasalarida, balki oilada, mahallalarda ham bu sohaga jiddiy yondashilmoqda.
There is no analogue to Jarník's relation for twisted Diophantine approximmation
Creators: name: Marnat, Antoine
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J13

description: Jarník's relation is in dimension $2$ the formula $\hatλ + \frac{1}{\hatω} = 1$ linking both uniform exponents. It is an open question to generalize this equation to higher dimension, or to the multiplicative case. In this paper we consider a twisted case, between the classical and the multiplicative one, and we show that no analogue to Jarník's relation holds.
description: 15 pages
Two-Photon Absorption in Gapped Bilayer Graphene with a Tunable Chemical Potential
Creators: name: Brinkley, M. K.
name: Abergel, D. S. L.
name: Clader, B. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Despite the now vast body of two-dimensional materials under study, bilayer graphene remains unique in two ways: it hosts a simultaneously tunable band gap and electron density; and stems from simple fabrication methods. These two advantages underscore why bilayer graphene is critical as a material for optoelectronic applications. In the work that follows, we calculate the one- and two-photon absorption coefficients for degenerate interband absorption in a graphene bilayer hosting an asymmetry gap and adjustable chemical potential--all at finite temperature. Our analysis is comprehensive, characterizing one- and two-photon absorptive behavior over wide ranges of photon energy, gap, chemical potential, and thermal broadening. The two-photon absorption coefficient for bilayer graphene displays a rich structure as a function of photon energy and band gap due to the existence of multiple absorption pathways and the nontrivial dispersion of the low energy bands. This systematic work will prove integral to the design of bilayer-graphene-based nonlinear optical devices.
description: 10 pages, 4 figures
Quasi-Isometric Embeddings of Symmetric Spaces
Creators: name: Fisher, David
name: Whyte, Kevin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Group Theory (math.GR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We prove a rigidity theorem that shows that, under many circumstances, quasi-isometric embeddings of equal rank, higher rank symmetric spaces are close to isometric embeddings. We also produce some surprising examples of quasi-isometric embeddings of higher rank symmetric spaces. In particular, we produce embeddings of $SL(n,\mathbb R)$ into $Sp(2(n-1),\mathbb R)$ when no isometric embeddings exist. A key ingredient in our proofs of rigidity results is a direct generalization of the Mostow-Morse Lemma in higher rank. Typically this lemma is replaced by the quasi-flat theorem which says that maximal quasi-flat is within bounded distance of a finite union of flats. We improve this by showing that the quasi-flat is in fact flat off of a subset of codimension $2$.
description: Exposition improved, outlines of proofs added to introduction. Typos corrected, references added. Also some discussion of the reducible case added
title: Επανάχρηση της κατοικίας της Ισιδώρας Ντάνκαν ως Δημόσια βιβλιοθήκη με χώρο εστίασης και εκθεσιακό χώρο
title: The reuse of Isadora's Duncan residence as a public library with eating establishments and exhibition space
titleType: AlternativeTitle
Creators: name: Μπουσπρένι, Αντελάιντα
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Επανάχρηση
Duncan
Δημόσια βιβλιοθήκη
Χώρο εστίασης
Εκθεσιακός χώρος

description: Η εν λόγω πτυχιακή εργασία έχει ώς αφορμή το ενδιαφέρον μου για τα βιβλία καθώς και για τον σχεδιασμό των χώρων που τα φιλοξενούν. Στην Αθήνα υπάρχουν πολλές δημοτικές βιβλιοθήκες με αρκετό υλικό το οποίο επιτρέπει την πρόσβαση στη πληροφορία σε όλους τους πολίτες, εξίσου. Αυτό όμως δεν συμβαίνει σε όλες τις περιοχές της Αθήνας, καθώς ως κάτοικος της περιοχής του Βύρωνα, έχω παρατηρήσει πώς ο δήμος κατακλύζεται από χώρους εστίασης και διασκέδασης αλλά υστερεί σε χώρους καλλιέργειας του πνεύματος, όπως οι βιβλιοθήκες. Λαμβάνοντας υπόψη τα παραπάνω δεδομένα, και ιδιαίτερα τη προσωπική μου εμπειρία, ένας χώρος ο οποίος θα συνδύαζε τις δύο χρήσεις, και εν δυνάμει θα μπορούσε να γεφυρώσει το χάσμα τους, είναι αυτό που χρειάζεται η περιοχή. Ο λόγος για την επιλογή του θέματος υπήρξε η πρόκληση της σχεδίασης μια δημόσιας βιβλιοθήκης με χώρο εστίασης σε ένα διατηρητέο κτίριο, το οποίο άνηκε σε μια ιδιαίτερη προσωπικότητα,την Ισιδώρα Ντάνκαν. Στόχος της πτυχιακής εργασίας είναι μέσα από την έρευνα και την μελέτη του διατηρητέου κτιρίου και την ανασκόπηση στην ζωη και το όρομα της ιδιοκτήτριας του, να σχεδιαστεί μια Δημόσια Βιβλιοθήκη όπου θα στεγάζει χώρο εστίασης αλλά και χώρο εκδηλώσεων και θα αποτελεί μια πηγή πληροφόρησης,ψυχαγωγίας και ανάπαυσης.Ο χρήστης με την επίσκεψη του ενημερώνεται,κοινωνικοποιείται,ψυχ αγωγείται με αποτέλεσμα ο χώρος αυτός να παρακινεί τον κόσμο να επισκέπτεται τις βιβλιοθήκες πιο συχνα. Κατά τον σχεδιασμό ακολουθήθηκαν δύο μέθοδοι προσέγγισης. Η πρώτη είναι ως προς το κέλυφος του κτιρίου το οποίο αντιμετωπίστηκε με σεβασμό καθώς θεωρείται διατηρητέο μνημείο. Η δεύτερη, που αφορά το εσωτερικό του κτιρίου, διαμορφώθηκε από τον φιλελεύθερο και αντισυμβατικό χαρακτήρα της Ισιδώρας Ντάνκαν. Οι έννοιες χορός, κίνηση, ροή που έγιναν ταυτόσημες με την διάσημη χορεύτρια, καθόρισαν τη σχεδιαστική διαδικασία και αποτυπώνονται στο εσωτερικού του αυστηρού και ορθοκανονικού κελύφους. Οι χώροι και οι χρήσεις είναι κατανεμημένοι έτσι ώστε το κοινό να μπορεί να περιηγηθεί στους χώρους ακολουθώντας αυτήν την “ροή” που διακρίνεται μέσα από τον σχεδιασμό. Συνοψίζοντας, στην πτυχιακή εργασία γίνεται επανάχρηση ενός διατηρητέου κτιρίου ως Δημόσια Βιβλιοθήκη που στεγάζει παράλληλα χώρους εστίασης και εκδηλώσεων. Ο σκοπός είναι ο σχεδιασμός περισσότερων βιβλιοθηκών σε συνοικιακές περιοχές όπως ο Βύρωνας και παράλληλα η ανάδειξη και η αναβίωση του κτιρίου τιμώντας τη ψυχοσύνθεση και τη νοοτροπία της Ισιδώρας Ντάνκαν.
Zoonoses_equids
Creators: name: Carminati, Marta
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Equidae
subject: zoonotic diseases
subject: One Health
subject: horses
subject: donkeys
subject: surveillance
subject: early detection
subject: http://id.agrisemantics.org/gacs/C590
subject: http://id.agrisemantics.org/gacs/C2753
subject: http://id.agrisemantics.org/gacs/C12755
subject: http://id.agrisemantics.org/gacs/C846

description: Overview of selected zoonotic pathogens that could be surveyed in equids (horses, donkeys), and the relevant matrices to sample
description: EU; en; xlsx; biohaw@efsa.europa.eu
Linking shape dynamics and loop quantum gravity
Creators: name: Smolin, Lee
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Shape dynamics is a reformulation of general relativity, locally equivalent to Einstein's theory, in which the refoliation invariance of the older theory is traded for local scale invariance. Shape dynamics is here derived in a formulation related to the Ashtekar variables by beginning with a modification of the Plebanski action. The constraints of shape dynamics and their algebra are reproduced in terms of these new variables.
description: 12 pages, no figures, mistake fixed, other small changes
Zoonoses_pigs_poultry
Creators: name: Nigsch, Annette
Publisher: name: Zenodo
Year: 2023
Subjects: subject: pigs
subject: poultry
subject: zoonotic diseases
subject: One Health
subject: surveillance
subject: early detection
subject: http://id.agrisemantics.org/gacs/C227
subject: http://id.agrisemantics.org/gacs/C255
subject: http://id.agrisemantics.org/gacs/C2753
subject: http://id.agrisemantics.org/gacs/C5056

description: Overview of selected zoonotic pathogens that could be surveyed in poultry or pigs, and the relevant matrices to sample
description: EU; en; xlsx; biohaw@efsa.europa.eu
title: Τα μουσεία των επαγγελματικών ομάδων ποδοσφαίρου ως εργαλεία μάρκετινγκ
title: Museums of professional football clubs as a marketing tool
titleType: AlternativeTitle
Creators: name: Μπέλλου, Αθανασία
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Αθλητικά μουσεία
subject: Αθλητισμός - Μάρκετινγκ
subject: Ποδόσφαιρο - Μάρκετινγκ
subject: Αθλητισμός και τουρισμός - Μάρκετινγκ
subject: Sports museums
subject: Sports - Marketing
subject: Soccer - Marketing
subject: Sports and tourism - Marketing
subject: Αθλητικά μουσεία
subject: Μουσεία ποδοσφαίρου
subject: Αισθητηριακό μάρκετινγκ
subject: Αθλητικός τουρισμός
subject: Τεχνολογία μουσείων
subject: Sports museums
subject: Football museums
subject: Sensory marketing
subject: Sports tourism
subject: Technology of museums

description: Σκοπός της παρούσης εργασίας είναι να εξεταστεί αν τα Μουσεία των επαγγελματικών ποδοσφαιρικών Συλλόγων αποτελούν εργαλείο μάρκετινγκ για τον Οργανισμό. Διενεργήθηκε πρωτογενής ποιοτική έρευνα με στυλ συνεντεύξεων αρμοδίων προσώπων που στη συγκεκριμένη περίπτωση ήταν οι υπεύθυνοι των Μουσείων ή αρμοδίων τμημάτων της ομάδας στόχου της έρευνας. Επίσης, χρησιμοποιήθηκε η έρευνα μέσω παρατήρησης από τη συγγραφέα και δευτερογενής έρευνα μέσω συλλογής στοιχείων στο διαδίκτυο και σε βιβλιογραφικές πηγές. Μελετήθηκαν επτά περιπτώσεις αθλητικών μουσείων από τις οποίες οι έξι αφορούν ποδοσφαιρικές ομάδες και η μία το Ολυμπιακό Μουσείο της Αθήνας. Συζητήθηκαν και ερευνήθηκαν θέματα όπως το αν τα μουσεία σχετίζονται με την βιώσιμη ανάπτυξη του Συλλόγου, με τον τουρισμό νοσταλγίας, εάν ενδυναμώνουν την μάρκα μέσα από την αύξηση της αξίας, της πίστης και της αφοσίωσης, πως διαμορφώνονται τα συστατικά μάρκετινγκ και το γενικότερο αντίκτυπο τόσο στο εξωτερικό όσο και στο εσωτερικό περιβάλλον. Συνοπτικά, τα αποτελέσματα αποτυπώνουν πως τα μουσεία που ερευνήθηκαν εφαρμόζουν τακτικές και πολιτικές ψυχαγωγίας, εκπαίδευσης, ανάδειξης της ιστορίας, συνδυασμό χρησιμοποίησης πολυλειτουργικών εγκαταστάσεων, τεχνολογίας. δημιουργίας εμπειριών καθώς και διέγερσης αισθήσεων και συναισθημάτων, σε διαφορετικό βαθμό ανάλογα με τις ανάγκες του Οργανισμού. Στόχοι των συλλόγων ήταν η προσέλκυση νέων φίλων, η αύξηση της αναγνωρισιμότητας, της πίστης και της αφοσίωσης στην μάρκα που της προσδίδουν αξία και οδηγούν στην ενδυνάμωσή της. Τα συμπεράσματα που προέκυψαν από την έρευνα, έδειξαν πως το μουσείο επαγγελματικής ποδοσφαιρικής ομάδας θεωρείται εργαλείο μάρκετινγκ για την στρατηγική μάρκετινγκ ολόκληρου του Οργανισμού γιατί μέσω αυτού ο Σύλλογος φτάνει στους στόχους του πιο εύκολα και με μεγαλύτερη αποτελεσματικότητα.
Reorienting the work of district central offices toward an equity focus
Creators: name: Rocha, Marina E.
name: 0000-0001-8623-0672
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Central office
Equity
Academic gap
Reorientation
Systems of support
Data driven decisions
Accountability

description: The purpose of this qualitative study was to understand how a school districts’ central offices could reorient their beliefs, processes, and work for greater equitable student achievement outcomes. With the rise of accountability for student performance by federal and state systems, the role of the central office has come under greater scrutiny. Additionally, research reveals that economically disadvantaged students and students of color are not reaching the same levels of academic achievement as their richer white counterparts in the United States. The effects of this gap can have long-term consequences since high school graduation and a college degree are gateways to financial security. School district leaders must play an essential role in minimizing inequities in education to meaningfully prepare all students for life after high school. Therefore, it is incumbent on the leadership of K-12 public school districts to ensure equity and results for all its students. The following research questions guided the study: (a) How do superintendents reorient their central offices toward an equity vision? (b) What central office systems or actions were created, changed, or adjusted to focus on equity? (c) What have been the outcomes of this equity focus on student achievement? This single study analyzed the key factors and system-wide changes taken by a district’s central office to bring equitable student achievement outcomes. The study focused on what system-wide changes occurred at the central office that resulted in students of color and lower socioeconomic status achieving academic parity with their peers. Using semistructured interviews the researcher wanted to understand how the members of the central office viewed their role and how others perceived the work of the central office. With snowball sampling, a total of 13 individuals participated, two board members, the superintendent, four central office cabinet members, one department head, two mid-level professionals, and three principals. Member checking occurred through the review of interview transcripts and in vivo coding was used to find patterns and trends among the participants' words. As a result of the study, five significant findings were attributed to the district’s success in making gains in equity. They were: (a) having a champion whose core value is equity and who supports it with high expectations and strategic goals (b) changing the perception of the central office to one of service and relationships (c) the central office using data for equity and creating collaborative solutions, not directives (d) the central office having a tightly held curriculum and resources (e) targeting human resources and finance aimed at equity, and (f) the central office embracing the culture of their community with different approaches to outreach.
YOSH AVLOD TARBIYASIDA AXLOQIY MADANIYATNING OSHIRISH MASALALARI OILA MISOLIDA
Creators: name: Evatov, Saminjon
name: Nabiyev, Iskandar
name: Yoqubjonov, Shavkatjon
Publisher: name: Zenodo
Year: 2023

description: Bugungi kunda davlatimizning asosiy maqsadlaridan biri kelajak poydevori bo'lgan yoshlarni huquqiy, ma'naviy, madaniy, siyosiy, iqtisodiy, ijtimoiy va axloqiy yetuk mustaqil fikrlovchi barkamol avlod qilib voyaga yetkazishdir. Yoshlar jamiyatimizda amalga oshrilayotgan tarixiy jarayonlarning barcha sohalarida adolatli, ma'nan yetuk, jismonan sog'lom, an'analarga hurmat bilan yondashuvchi, yangicha ma'naviy tafakkur egasi bo'lishga harakat qilmoqda. Mamlakatimiz prezidenti SH. Mirziyoyev  ta'kidlaganidek "Kelajak bugundan boshlanadi. Hozir tarbiya masalasiga e'tibor qilinmasa, kelajak boy beriladi"
Koppelman formulas on the A_1-singularity
Creators: name: Lärkäng, Richard
name: Ruppenthal, Jean
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In the present paper, we study the regularity of the Andersson-Samuelsson Koppelman integral operator on the $A_1$-singularity. Particularly, we prove $L^p$- and $C^0$-estimates. As applications, we obtain $L^p$-homotopy formulas for the $\bar{\partial}$-equation on the $A_1$-singularity, and we prove that the $\mathcal{A}$-forms introduced by Andersson-Samuelsson are continuous on the $A_1$-singularity.
description: 23 pages. v3: Minor changes made for the final version
title: Building bridges in education: Exploring how engineering and MBA students can work together to help the environment using biodiesel
Creators: name: Samra, Yassir M.
name: Abulencia, James Patrick
name: Purington, Emilia Golebiowska
name: Kelly, Giovanni
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 330 Economics

description: The growing demand for alternative fuels has propelled biodiesel into the spotlight as a viable solution. This case study at Manhattan College exemplifies interdisciplinary collaboration between chemical engineering and business students. It focuses on transforming waste vegetable oil into biodiesel, offering an eco-friendly fuel source and glycerin for soap and candle production. MBA students conducted a feasibility analysis for these products. Promising applications emerged: Biodiesel for generators, glycerin-based soap, and candles. This experience equips students with practical skills and emphasizes the value of engineering-business partnerships in education, encouraging cross-disciplinary teamwork and sustainable innovation.
Additional file 1 of An investigation of Bellini’s Transfiguration in the Capodimonte museum by means of XRF and visible reflectance hyperspectral imaging: Bellini’s handling of materials in the head and figure of the transfigured Christ
Creators: name: de Viguerie, Laurence
name: Glanville, Helen
name: Radepont, Marie
name: Cerasuolo, Angela
name: Rullo, Alessandra
name: Seccaroni, Claudio
name: Walter, Philippe
Publisher: name: figshare
Year: 2023
Subjects: Space Science
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Additional file 1: Table S1. List of the main pigments discussed in the text, corresponding to the central area of the figure of Christ. Figure S1. XRF spectra from the sky: a lower part; b from the clouds. Figure S2. XRF spectra from the face: light area (black) and shadow of the nose (red). Figure S3. XRF spectra from a the grey cloa and b white tunic.
title: Dynamic Forces Of Organizational Change: Alignment Of Interests & Imposition Of Identity
Creators: name: Tanner, J
Publisher: name: London South Bank University
Year: 2018

description: Organizations need to be aware of the drivers for change and how to prepare, plan, lead and implement programmes designed to meet these challenges. Organizational change has often been approached as either a change of staffing structure or a change in technology but commonly these changes are intimately interconnected.
For organizational changes to succeed it is necessary for managers to negotiate new staff roles (identities) and to persuade staff to disengage from their existing teams and structures and to align to new structures (networks of association). This study examines the introduction of technology for use by administrative staff in a Higher Education Institution and how their interests were aligned, and identities re-negotiated. There is comparatively little investigation into the impact of change on Higher Education Professional Services staff. This work seeks further understanding in this area.
The study made use of a series of convergent interviews, participant observation and document analysis carried out as a case study. The specific case detailed here was part of a planned programme of organizational and technological change. Interviews revealed that administrative staff role identities had changed significantly over time but in this instance the driver for change and the success of the project was the convergence of structure and technology.
Data was analysed through the lens of Actor-Network Theory (ANT) which allows for the consideration of the social and material (technical) aspects of the case. ANT has a reputation for being difficult to operationalise in the field but for this research project, the method was used as a guide to assist with the identification of stakeholders and as a technique to aid data analysis.
Analysis suggests that for change programmes to be successful it is necessary for managers to have local champions (allies) communicating the benefits, a good understanding of existing interests and identities that need to be re-aligned and the influence of other networks that could act to destabilise (betray) the new network. The outcome of the research is a new model, the Dynamic Forces of Organizational Change that brings together the elements of Fisher’s Personal Transition Curve with ANT’s four moments of Translation. The model is designed to help those involved in change programmes to better understand the dynamic forces that need to be brought into alliances and to fend off those that could potentially disrupt planned change.
Initial-seed recursions and dualities for d-vectors
Creators: name: Reading, Nathan
name: Stella, Salvatore
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 13F60

description: We present an initial-seed-mutation formula for d-vectors of cluster variables in a cluster algebra. We also give two rephrasings of this recursion: one as a duality formula for d-vectors in the style of the g-vectors/c-vectors dualities of Nakanishi and Zelevinsky, and one as a formula expressing the highest powers in the Laurent expansion of a cluster variable in terms of the d-vectors of any cluster containing it. We prove that the initial-seed-mutation recursion holds in a varied collection of cluster algebras, but not in general. We conjecture further that the formula holds for source-sink moves on the initial seed in an arbitrary cluster algebra, and we prove this conjecture in the case of surfaces.
description: 21 Pages, 20 Figures. Version 2: Expanded introduction, other minor expository changes. Version 3: Very minor corrections. Final version to appear in the Pacific Journal of Mathematics
Deliverable D4: "Report on the use of a calibrated microfluidic multi-parameter chip for the in-line measurement of pressure, viscosity and temperature."
Creators: name: Bissig, Hugo
name: Büker, Oliver
name: Van Der Wouden, Egbert
name: Lötters, Joost
name: Groenesteijn, Jarno
name: Furtado, Andreia
name: Moura, Sara
name: Lee, Seok Hwan
name: Wale, Leslie
Publisher: name: Zenodo
Year: 2022

description: In-line measurements of liquid properties are important for production processes or applications where different liquids are mixed. In healthcare applications, such as multi-infusion systems, different drugs are mixed to be administered to the patient via a central catheter. . Investigating the mixing behaviour requires knowledge of the liquid properties prior and after various mixing points. Therefore, sensors for the in-line measurement of pressure, viscosity and temperature are indispensable for the determination of the mixing behaviour or clogging phenomena in several infusion lines. The calibration of sensors containing a microfluidic chip for the in-line measurement of liquid properties and issues in using these sensors are described and discussed in this report