cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polycaprolactone-Based 3D-Printed Scaffolds as Potential Implant Materials for Tendon-Defect Repair
Creators: name: Kempfert, Merle
name: Willbold, Elmar
name: Loewner, Sebastian
name: Blume, Cornelia
name: Pitts, Johannes
name: Menzel, Henning
name: Roger, Yvonne
name: Hoffmann, Andrea
name: Angrisani, Nina
name: Reifenrath, Janin
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: cytocompatibility
subject: defect repair
subject: degradable
subject: printing
subject: surface modification
subject: tendon graft
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Chronic tendon ruptures are common disorders in orthopedics. The conventional surgical methods used to treat them often require the support of implants. Due to the non-availability of suitable materials, 3D-printed polycaprolactone (PCL) scaffolds were designed from two different starting materials as suitable candidates for tendon-implant applications. For the characterization, mechanical testing was performed. To increase their biocompatibility, the PCL-scaffolds were plasma-treated and coated with fibronectin and collagen I. Cytocompatibility testing was performed using L929 mouse fibroblasts and human-bone-marrow-derived mesenchymal stem cells. The mechanical testing showed that the design adaptions enhanced the mechanical stability. Cell attachment was increased in the plasma-treated specimens compared to the control specimens, although not significantly, in the viability tests. Coating with fibronectin significantly increased the cellular viability compared to the untreated controls. Collagen I treatment showed an increasing trend. The desired cell alignment and spread between the pores of the construct was most prominent on the collagen-I-coated specimens. In conclusion, 3D-printed scaffolds are possible candidates for the development of tendon implants. Enhanced cytocompatibility was achieved through surface modifications. Although adaptions in mechanical strength still require alterations in order to be applied to human-tendon ruptures, we are optimistic that a suitable implant can be designed.
Turbulent transport and heating of trace heavy ions in hot, magnetized plasmas
Creators: name: Barnes, M.
name: Parra, F. I.
name: Dorland, W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Scaling laws for the transport and heating of trace heavy ions in low-frequency, magnetized plasma turbulence are derived and compared with direct numerical simulations. The predicted dependences of turbulent fluxes and heating on ion charge and mass number are found to agree with numerical results for both stationary and differentially rotating plasmas. Heavy ion momentum transport is found to increase with mass, and heavy ions are found to be preferentially heated, implying a mass-dependent ion temperature for very weakly collisional plasmas and for partially-ionized heavy ions in strongly rotating plasmas.
description: 4 pages, 4 figures, submitted to Physical Review Letters
Cultivation and characterisation of Salicornia europaea, Tripolium pannonicum and Crithmum maritimum biomass for green biorefinery applications
Creators: name: Hulkko, Laura S. S.
name: Turcios, Ariel E.
name: Kohnen, Stéphane
name: Chaturvedi, Tanmay
name: Papenbrock, Jutta
name: Thomsen, Mette Hedegaard
Publisher: name: [London] : Macmillan Publishers Limited, part of Springer Nature
Year: 2022
Subjects: subject: Apiaceae
subject: Asteraceae
subject: Biomass
subject: Chenopodiaceae
subject: Dietary Fiber
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: Salt-tolerant halophytes have shown potential for biorefinery and agricultural use in salt-affected soils, increasing the value of marginal lands. They could provide a bio-based source for compounds obtained from the petrochemical industry or an alternative for biomass currently imported overseas. Salicornia europaea, Tripolium pannonicum and Crithmum maritimum were cultivated in hydroponic systems under various salinity conditions, harvested green but not food-grade, and fractionated to green juice and fibre residue. Obtained fractions were characterised for contents of carbohydrates, Klason lignin, crude protein, organic acids, lipids, and minerals to evaluate the biomass’ suitability for biorefinery. Significant differences were observed in the biomass yield and the composition of the biomass fractions from different cultivation salinities. High concentrations of crude protein were found. Thus, these species could have the potential for green protein production. Fractions rich in carbohydrates could be used for lignocellulose processing and processes utilising micro-organisms.
Manifolds homotopy equivalent to certain torus bundles over lens spaces
Creators: name: Davis, James F.
name: Lueck, Wolfgang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R67, 57N99, 19525

description: We compute the topological simple structure set of closed manifolds which occur as total spaces of flat bundles over lens spaces S^l/(Z/p) with fiber an n-dimensjional torus T^n for an odd prime p and l greater or equal to 3, provided that the induced Z/p-action on pi_1(T^n) = Z^n is free outside the origin. To the best of our knowledge this is the first computation of the structure set of a topological manifold whose fundamental group is not obtained from torsionfree and finite groups using amalgamated and HNN-extensions. We give a collection of classical surgery invariants such as splitting obstructions and rho-invariants which decide whether a simple homotopy equivalence from a closed topological manifold to M is homotopic to a homeomorphism.
description: 40 pages, to appear in Communications on Pure and Applied Mathematics
The analysis of the excited bottom and bottom strange states $B_{1}(5721)$, $B_{2}^{*}(5747)$, $B_{s1}(5830)$, $B_{s2}^{*}(5840)$, $B_{J}(5840)$ and $B_{J}(5970)$ in B meson family
Creators: name: Yu, Guo-Liang
name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to make a further confirmation about the assignments of the excited bottom and bottom strange mesons $B_{1}(5721)$, $B_{2}^{*}(5747)$, $B_{s1}(5830)$, $B_{s2}^{*}(5840)$ and meanwhile identify the possible assignments of $B_{J}(5840)$, $B_{J}(5970)$, we study the strong decays of these states with the $^{3}P_{0}$ decay model. Our analysis support $B_{1}(5721)$ and $B_{2}^{*}(5747)$ to be the $1P_{1}'$ and $1^{3}P_{2}$ assignments and the $B_{s1}(5830)$, $B_{s2}^{*}(5840)$ to be the strange partner of $B_{1}(5721)$ and $B_{2}^{*}(5747)$. Besides, we tentatively identify the recently observed $B_{J}(5840)$, $B_{J}(5970)$ as the $2^{3}S_{1}$ and $1^{3}D_{3}$ states, respectively. It is noticed that this conclusion needs further confirmation by measuring the decay channel to $Bπ$ of $B_{J}(5840)$ and $B_{J}(5970)$ in experiments.
Signatures of Dipolar Dark Matter on Indirect Detection
Creators: name: Arellano-Celiz, C.
name: Avilez-López, A.
name: Barradas-Guevara, J. E.
name: Carrillo-Monteverde, A.
name: Díaz-Cruz, J. L.
name: Félix-Beltrán, O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we study the annihilation of fermionic dark matter, considering it as a neutral particle with non-vanishing magnetic ($M$) and electric ($D$) dipole moments. Effective cross section of the process $χ\overlineχ \rightarrow γγ$ is computed starting from a general form of the coupling $χ\overlineχ γ$ in the framework of an extension of the Standard Model. By taking into account the annihilation of dark matter pairs into mono-energetic photons, we found that for masses of $O(10^2)$ GeV, an electric dipole moment $\sim 10^{-16}\, \textrm{e cm}$ is required to satisfy the current relic density inferences. Additionally, in order to pin down models viable to describe the physics of dark matter in the early Universe, we also constrain our model according to recent measurements of the temperature anisotropies of the cosmic microwave background radiation, and report constraints to the electric and magnetic dipole moments for a range of masses within our model.
description: 20 pages, 6 figures
Expressiveness and machine processability of Knowledge Organization Systems (KOS): An analysis of concepts and relations
Creators: name: Peponakis, Manolis
name: Mastora, Anna
name: Kapidakis, Sarantos
name: Doerr, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Digital Libraries (cs.DL)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This study considers the expressiveness (that is the expressive power or expressivity) of different types of Knowledge Organization Systems (KOS) and discusses its potential to be machine-processable in the context of the Semantic Web. For this purpose, the theoretical foundations of KOS are reviewed based on conceptualizations introduced by the Functional Requirements for Subject Authority Data (FRSAD) and the Simple Knowledge Organization System (SKOS); natural language processing techniques are also implemented. Applying a comparative analysis, the dataset comprises a thesaurus (Eurovoc), a subject headings system (LCSH) and a classification scheme (DDC). These are compared with an ontology (CIDOC-CRM) by focusing on how they define and handle concepts and relations. It was observed that LCSH and DDC focus on the formalism of character strings (nomens) rather than on the modelling of semantics; their definition of what constitutes a concept is quite fuzzy, and they comprise a large number of complex concepts. By contrast, thesauri have a coherent definition of what constitutes a concept, and apply a systematic approach to the modelling of relations. Ontologies explicitly define diverse types of relations, and are by their nature machine-processable. The paper concludes that the potential of both the expressiveness and machine processability of each KOS is extensively regulated by its structural rules. It is harder to represent subject headings and classification schemes as semantic networks with nodes and arcs, while thesauri are more suitable for such a representation. In addition, a paradigm shift is revealed which focuses on the modelling of relations between concepts, rather than the concepts themselves.
description: 34 pages, 2 tables, 2 figures
CLÁUSULAS DE PAPEL
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 09 – vol. 03 – n. 22/2021
Quando uma sociedade verdadeiramente democrática se une em defesa do seu contrato político – a Constituição – resta definido que qualquer autoridade respeita o contribuinte.
Modulational instability in binary spin-orbit-coupled Bose-Einstein condensates
Creators: name: Bhat, Ishfaq Ahmad
name: Mithun, T.
name: Malomed, B. A.
name: Porsezian, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study modulation instability (MI) of flat states in two-component spin-orbit-coupled (SOC) Bose-Einstein condensates (BECs) in the framework of coupled Gross-Pitaevskii equations for two components of the pseudospinor wave function. The analysis is performed for equal densities of the components. Effects of the interaction parameters, Rabi coupling, and SOC on the MI are investigated. In particular, the results demonstrate that the SOC strongly alters the commonly known MI (immiscibility) condition, $g_{12} > g_{1} g_{2}$, for the binary superfluid with coefficients $g_{1,2}$ and $g_{12}$ of the intra- and interspecies repulsive interactions. In fact, the binary BEC is always subject to the MI under the action of the SOC, which implies that the ground state of the system is plausibly represented by a striped phase.
Analysis of ResearchGate Network based on Suitable Scientific Assessment Tool: A Systematic Review
Creators: name: Tavosi, Maryam
name: Naghshineh, Nader
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 390107
subject: Humanities and social sciences curriculum and pedagogy (excl. economics, business and management)
classificationCode: 460105
subject: Applications in social sciences and education
classificationCode: 461099
subject: Library and information studies not elsewhere classified
classificationCode: 350612
subject: Social marketing

description: AbstractPurpose: Accurate scientific evaluation of researchers by ResearchGate network is still ambiguous. This systematic study seeks to shed some light on this issue.
Methods: The study was conducted with a systematic review of the previous studies (articles or reports). The analysis of documents was performed with a targeted keyword search in the reputable Google Scholar, Emerald, and PubMed databases (without limit). Titles and abstracts (if necessary, full texts) of the number of 582 documents (Persian, English, and Spanish) were retrieved (1-10 April 2021) and studied. Then, by removing duplicate or irrelevant data, 57 independent studies were selected for meeting the main research problem of this systematic review (using the PRISMA statement). For drawing diagrams, Excel software was used.
Findings: Among 57 previous independent studies retrieved by systematic review, 30 ones, had a negative attitude towards the ResearchGate. 27 studies saw with positive approach from standpoint the concepts of "authentic measuring instrument", " presence of prominent scientists such as Nobel Prize recipients", "valid scientific content", and "having a significant relationship with the academic ranking criteria", and "compliance with the Hirsch indicator", that was identified by documentary analysis based on PRISMA statement. Studies with a positive assessment of the ResearchGate dealt with developing countries, and with a small investigated research community. Therefore, it is appropriate to act cautiously when evaluating researchers with the ResearchGate network.
Originality: No similar systematic review to evaluate the ResearchGate network from the standpoint of a scientific suitable evaluation tool, has been done so far.KeywordsAcademic Social Media Altmetrics H-Index Reputation RG Indicators
title: Synthese elastomerer, kolloidaler Additive zur Herstellung neuartiger, funktionaler Papiere
Creators: name: Bareuther, Jennifer
Publisher: name: UNSPECIFIED
Year: 2023

description: Ziel der vorliegenden Arbeit war die Herstellung unterschiedlichster elastomerer Polymerkomponenten, um diese im weiteren Verlauf auf ihre Performance als mögliche Additive bei der Herstellung neuartiger, funktionaler Papiere zu prüfen. Durch die Zugabe der Additive sollte ein zellstoffbasiertes Papier entwickelt werden, welches sich reversibel um mehr als 100 % dehnen lässt, da herkömmliches Papier auf Cellulosebasis als sehr steif und wenig flexibel bzw. elastisch gilt. Durch die elastischen Polymeradditive sollten die bekannten Wasserstoffbrückenbindung zwischen den Cellulosemolekülen gehemmt bzw. ersetzt werden, um so die Elastizität des Fasernetzwerkes zu erhöhen. Für die Synthese der polymeren Additive kamen die Polymerisationsmethoden anionische Polymerisation in Lösung und heterogene Polymerisation in Emulsion zum Einsatz. Durch variierende Polymerisationsparameter wurden so polymere Additive geeigneter Konstitution, Größe, Architektur und Elastizität hergestellt. Die Anbindung der eingesetzten Additive konnte aufgrund auftretender elektrostatischer Wechselwirkungen zwischen anionischer Oberflächenladung der Cellulose und kationischer Oberflächenladung der einsetzten polymeren Additive realisiert werden.
Letter counting: a stem cell for Cryptology, Quantitative Linguistics, and Statistics
Creators: name: Ycart, Bernard
Publisher: name: arXiv
Year: 2012
Subjects: subject: History and Overview (math.HO)
subject: Computation and Language (cs.CL)
subject: Cryptography and Security (cs.CR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Counting letters in written texts is a very ancient practice. It has accompanied the development of Cryptology, Quantitative Linguistics, and Statistics. In Cryptology, counting frequencies of the different characters in an encrypted message is the basis of the so called frequency analysis method. In Quantitative Linguistics, the proportion of vowels to consonants in different languages was studied long before authorship attribution. In Statistics, the alternation vowel-consonants was the only example that Markov ever gave of his theory of chained events. A short history of letter counting is presented. The three domains, Cryptology, Quantitative Linguistics, and Statistics, are then examined, focusing on the interactions with the other two fields through letter counting. As a conclusion, the eclectism of past centuries scholars, their background in humanities, and their familiarity with cryptograms, are identified as contributing factors to the mutual enrichment process which is described here.
The abstract Birman-Schwinger principle and spectral stability
Creators: name: Hansmann, Marcel
name: Krejcirik, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We discuss abstract Birman-Schwinger principles to study spectra of self-adjoint operators subject to small non-self-adjoint perturbations in a factorised form. In particular, we extend and in part improve a classical result by Kato which ensures spectral stability. As an application, we revisit known results for Schrödinger and Dirac operators in Euclidean spaces and establish new results for Schrödinger operators in three-dimensional hyperbolic space.
Patients’ experiences of delirium : a systematic review and meta-summary of qualitative research
Creators: name: Kuusisto-Gussmann, Eero
name: Höckelmann, Carolin
name: Von Der Lühe, Verena
name: Schmädig, Roman
name: Baltes, Marion
name: Stephan, Astrid
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 610

description: Aims: The purpose of this systematic review and meta-summary was the aggregation of the empirical qualitative literature on patients’ experiences of delirium in order to support the development and implementation of patient-oriented delirium management and to guide future research. Design: We conducted a systematic literature review of qualitative research published between January 1980 and June 2019. Data sources: In June 2019, we searched in Medline, CINAHL, SSCI and PsycInfo to identify relevant reports. In addition, we conducted searches in three dissertation databases (BASE, DART and ProQuest) and Google Scholar. Review methods: We used methods developed by Sandelowski and Barroso to construct a meta-summary of the findings by extracting them from the reports, abstracting them into meta- findings and calculating their manifest interstudy frequency effect sizes. Results: Out of the 742 identified records, 24 reports based on delirium experience accounts of 483 patients met our criteria and were included. One thousand ninety-seven findings were extracted from these reports and abstracted into 92 meta-findings. These were grouped to the five emerging themes ‘perception’, ‘emotions’, ‘interaction with others’, ‘dealing with delirium’ and ‘influence on further life’. Conclusion: Delirium is commonly perceived as an overall distressing condition, which can accompany and influence patients even after hospital discharge. Impact: This systematic review and meta-summary is the most comprehensive aggregation of qualitative research of the patient delirium experience to date. It allows us to better understand, extract meaning from, and weigh the qualitative findings in their context by calculating their manifest frequency effect sizes. This can be used to support the development and implementation of delirium management concepts.
Импульсный накопитель энергии
Creators: name: В.В., Любимов
Publisher: name: Zenodo
Year: 1986
Subjects: импульсные источники питания, накопители энергии, преобразователи импульсных сигналов

description: В работе (в предложении) дано описание оригинальной конструкции и электронной схемы импульсного накопителя энергии, который предназначен для питания аппаратуры приемника импульсных сигналов, который устанавливается в автономный погружаемый в море на глубину до 200 м батискаф. Прибор позволяет проводить исследования похождения и распространения радиосигналов сквозь толщу водной среды. Прибор использовался в экспедиционных условиях сотрудниками ИЗМИРАН при проведении исследований на акватории Чёрного моря. На данное рационализаторское предложение получено официальное Удостоверение зарегистрированное в Патентном отделе ИЗМИРАН СССР 14.02.1986 г. под №7/287.
MICROSCOPE mission analysis, requirements and expected performance
Creators: name: Touboul, Pierre
name: Rodrigues, Manuel
name: Métris, Gilles
name: Chhun, Ratana
name: Robert, Alain
name: Baghi, Quentin
name: Hardy, Emilie
name: Bergé, Joel
name: Boulanger, Damien
name: Christophe, Bruno
name: Cipolla, Valerio
name: Foulon, Bernard
name: Guidotti, Pierre-Yves
name: Huynh, Phuong-Anh
name: Lebat, Vincent
name: Liorzou, Françoise
name: Pouilloux, Benjamin
name: Prieur, Pascal
name: Reynaud, Serge
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The MICROSCOPE mission aimed to test the Weak Equivalence Principle (WEP) to a precision of $10^{-15}$. The WEP states that two bodies fall at the same rate on a gravitational field independently of their mass or composition. In MICROSCOPE, two masses of different compositions (titanium and platinum alloys) are placed on a quasi-circular trajectory around the Earth. They are the test-masses of a double accelerometer. The measurement of their accelerations is used to extract a potential WEP violation that would occur at a frequency defined by the motion and attitude of the satellite around the Earth. This paper details the major drivers of the mission leading to the specification of the major subsystems (satellite, ground segment, instrument, orbit...). Building upon the measurement equation, we derive the objective of the test in statistical and systematic error allocation and provide the mission's expected error budget.
description: References updated
MICROSCOPE mission: Data analysis principle
Creators: name: Bergé, Joel
name: Baghi, Quentin
name: Hardy, Emilie
name: Métris, Gilles
name: Robert, Alain
name: Rodrigues, Manuel
name: Touboul, Pierre
name: Chhun, Ratana
name: Guidotti, Pierre-Yves
name: Pires, Sandrine
name: Reynaud, Serge
name: Serron, Laura
name: Travert, Jean-Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: After performing highly sensitive acceleration measurements during two years of drag-free flight around the Earth, MICROSCOPE provided the best constraint on the Weak Equivalence Principle (WEP) to date. Beside being a technological challenge, this experiment required a specialised data analysis pipeline to look for a potential small signal buried in the noise, possibly plagued by instrumental defects, missing data and glitches. This paper describes the frequency-domain iterative least-square technique that we developed for MICROSCOPE. In particular, using numerical simulations, we prove that our estimator is unbiased and provides correct error bars. This paper therefore justifies the robustness of the WEP measurements given by MICROSCOPE.
description: References updated
Digital clocks: simple Boolean models can quantitatively describe circadian systems
Creators: name: Akman, Ozgur
name: Watterson, Steven
name: Parton, Andrew
name: Binns, Nigel
name: Millar, Andrew
name: Ghazal, Peter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Cell Behavior (q-bio.CB)
subject: Quantitative Methods (q-bio.QM)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: The gene networks that comprise the circadian clock modulate biological function across a range of scales, from gene expression to performance and adaptive behaviour. The clock functions by generating endogenous rhythms that can be entrained to the external 24-h day?night cycle, enabling organisms to optimally time biochemical processes relative to dawn and dusk. In recent years, computational models based on differential equations have become useful tools for dissecting and quantifying the complex regulatory relationships underlying the clock's oscillatory dynamics. However, optimizing the large parameter sets characteristic of these models places intense demands on both computational and experimental resources, limiting the scope of in silico studies. Here, we develop an approach based on Boolean logic that dramatically reduces the parametrization, making the state and parameter spaces finite and tractable. We introduce efficient methods for fitting Boolean models to molecular data, successfully demonstrating their application to synthetic time courses generated by a number of established clock models, as well as experimental expression levels measured using luciferase imaging. Our results indicate that despite their relative simplicity, logic models can (i) simulate circadian oscillations with the correct, experimentally observed phase relationships among genes and (ii) flexibly entrain to light stimuli, reproducing the complex responses to variations in daylength generated by more detailed differential equation formulations. Our work also demonstrates that logic models have sufficient predictive power to identify optimal regulatory structures from experimental data. By presenting the first Boolean models of circadian circuits together with general techniques for their optimization, we hope to establish a new framework for the systematic modelling of complex clocks.
description: 26 pages plus nine figures (in separate files)
Twist-induced Near-field Thermal Switch Using Nonreciprocal Surface Magnon-Polaritons
Creators: name: Peng, Jiebin
name: Tang, Gaomin
name: Wang, Luqin
name: Macêdo, Rair
name: Chen, Hong
name: Ren, Jie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We explore that two ferromagnetic insulator slabs host a strong twist-induced near-field radiative heat transfer in the presence of twisted magnetic fields. Using the formalism of fluctuational electrodynamics, we find the existence of large twist-induced thermal switch ratio in large damping condition and nonmonotonic twist manipulation for heat transfer in small damping condition, associated with the different twist-induced effects of nonreciprocal elliptic surface magnon-polaritons, hyperbolic surface magnon-polaritons, and twist-non-resonant surface magnon-polaritons. Moreover, the near-field radiative heat transfer can be significantly enhanced by the twist-non-resonant surface magnon-polaritons in the ultra-small damping condition. Such twist-induced effect is applicable for other kinds of anisotropic slabs with timereversal symmetry breaking. Our findings provide a way to twisted and magnetic control in nanoscale thermal management and improve it with twistronics concepts.
CHORO SEM LIBERDADE
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 09 – vol. 03 – n. 27/2021
Talvez o grito não tenha sido ouvido. Talvez sequer saiba do choro contido. Talvez, talvez!
Se o choro do escravo não bastou para mostrar que o ser humano não tem dono. Se a carne dilacerada não serviu para mostrar a dor, o que, afinal, servirá para traduzir a liberdade?
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. V. Evidence for a wide age distribution and a complex MDF
Creators: name: Bensby, T.
name: Yee, J. C.
name: Feltzing, S.
name: Johnson, J. A.
name: Gould, A.
name: Cohen, J. G.
name: Asplund, M.
name: Meléndez, J.
name: Lucatello, S.
name: Han, C.
name: Thompson, I.
name: Gal-Yam, A.
name: Udalski, A.
name: Bennett, D. P.
name: Bond, I. A.
name: Kohei, W.
name: Sumi, T.
name: Suzuki, D.
name: Suzuki, K.
name: Takino, S.
name: Tristram, P.
name: Yamai, N.
name: Yonehara, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Based on high-resolution spectra obtained during gravitational microlensing events we present a detailed elemental abundance analysis of 32 dwarf and subgiant stars in the Galactic bulge. [ABRIDGED], we now have 58 microlensed bulge dwarfs and subgiants that have been homogeneously analysed. The main characteristics of the sample and the findings that can be drawn are: (i) The metallicity distribution (MDF) is wide and spans all metallicities between [Fe/H]=-1.9 to +0.6; (ii) The dip in the MDF around solar metallicity that was apparent in our previous analysis of a smaller sample (26 microlensed stars) is no longer evident; instead it has a complex structure and indications of multiple components are starting to emerge. [ABRIDGED]; (iii) The stars with [Fe/H]-0.1 show a wide variety of ages, ranging from 2 to 12 Gyr with a distribution that has a dominant peak around 4-5 Gyr and a tail towards higher ages; (v) There are indications in the [alpha/Fe] - [Fe/H] that the "knee" occurs around [Fe/H] = -0.3 to -0.2, which is a slightly higher metallicity as compared to the "knee" for the local thick disk. This suggests that the chemical enrichment of the metal-poor bulge has been somewhat faster than what is observed for the local thick disk. The results from the microlensed bulge dwarf stars in combination with other findings in the literature, in particular the evidence that the bulge has cylindrical rotation, indicate that the Milky Way could be an almost pure disk galaxy. The bulge would then just be a conglomerate of the other Galactic stellar populations (thin disk, thick disk, halo, and ...?), residing together in the central parts of the Galaxy, influenced by the Galactic bar.
description: 26 pages, accepted for publication in A&A
Spectral properties of relativistic quantum waveguides
Creators: name: Borrelli, William
name: Briet, Philippe
name: Krejcirik, David
name: Ourmieres-Bonafos, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35P05, 81Q10, 81Q15, 81Q37, 82D77

description: We make a spectral analysis of the massive Dirac operator in a tubular neighborhood of an unbounded planar curve,subject to infinite mass boundary conditions. Under general assumptions on the curvature, we locate the essential spectrum and derive an effective Hamiltonian on the base curve which approximates the original operator in the thin-strip limit. We also investigate the existence of bound states in the non-relativistic limit and give a geometric quantitative condition for the bound states to exist.
description: Some technical results have been moved to the Appendix. To appear on Ann. Henri Poincar\'e
Mechanism of margination in confined flows of blood and other multicomponent suspensions
Creators: name: Kumar, Amit
name: Graham, Michael D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Flowing blood displays a phenomenon called margination, in which leukocytes and platelets are preferentially found near blood vessel walls, while erythrocytes are depleted from these regions. Here margination is investigated using direct hydrodynamic simulations of a binary suspension of stiff (s) and floppy (f) capsules, as well as a stochastic model that incorporates the key particle transport mechanisms in suspensions -- wall-induced hydrodynamic migration and shear-induced pair collisions. The stochastic model allows the relative importance of these two mechanisms to be directly evaluated and thereby indicates that margination, at least in the dilute case, is largely due to the differential dynamics of homogeneous (e.g. s-s) and heterogeneous (s-f) collisions
description: 5 Pages, 4 figures
Point-hyperplane incidence geometry and the log-rank conjecture
Creators: name: Singer, Noah
name: Sudan, Madhu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Computational Complexity (cs.CC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study the log-rank conjecture from the perspective of point-hyperplane incidence geometry. We formulate the following conjecture: Given a point set in $\mathbb{R}^d$ that is covered by constant-sized sets of parallel hyperplanes, there exists an affine subspace that accounts for a large (i.e., $2^{-{\operatorname{polylog}(d)}}$) fraction of the incidences. Alternatively, our conjecture may be interpreted linear-algebraically as follows: Any rank-$d$ matrix containing at most $O(1)$ distinct entries in each column contains a submatrix of fractional size $2^{-{\operatorname{polylog}(d)}}$, in which each column contains one distinct entry. We prove that our conjecture is equivalent to the log-rank conjecture. Motivated by the connections above, we revisit well-studied questions in point-hyperplane incidence geometry without structural assumptions (i.e., the existence of partitions). We give an elementary argument for the existence of complete bipartite subgraphs of density $Ω(ε^{2d}/d)$ in any $d$-dimensional configuration with incidence density $ε$. We also improve an upper-bound construction of Apfelbaum and Sharir (SIAM J. Discrete Math. '07), yielding a configuration whose complete bipartite subgraphs are exponentially small and whose incidence density is $Ω(1/\sqrt d)$. Finally, we discuss various constructions (due to others) which yield configurations with incidence density $Ω(1)$ and bipartite subgraph density $2^{-Ω(\sqrt d)}$. Our framework and results may help shed light on the difficulty of improving Lovett's $\tilde{O}(\sqrt{\operatorname{rank}(f)})$ bound (J. ACM '16) for the log-rank conjecture; in particular, any improvement on this bound would imply the first bipartite subgraph size bounds for parallel $3$-partitioned configurations which beat our generic bounds for unstructured configurations.
description: 14 pages, no figures; revised discussion, to appear in ACM Transactions on Computation Theory
Classification Recouvrante Basée sur les Méthodes à Noyau
Creators: name: N'Cir, Chiheb-Eddine Ben
name: Essoussi, Nadia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Overlapping clustering problem is an important learning issue in which clusters are not mutually exclusive and each object may belongs simultaneously to several clusters. This paper presents a kernel based method that produces overlapping clusters on a high feature space using mercer kernel techniques to improve separability of input patterns. The proposed method, called OKM-K(Overlapping $k$-means based kernel method), extends OKM (Overlapping $k$-means) method to produce overlapping schemes. Experiments are performed on overlapping dataset and empirical results obtained with OKM-K outperform results obtained with OKM.
description: Les 43\`emes Journ\'ees de Statistique
title: Editorial
Creators: name: Altzinger, Wilfried
name: Guger, Alois
name: Mooslechner, Peter
name: Nowotny, Ewald
Publisher: name: Oesterreichische Nationalbank
Year: 2014

description: This editorial gives an overview of Kurt W. Rothschild's life and work. Moreover, it gives an outline of the papers presented at the Conference in Memory of Kurt W. Rothschild on December 1st and 2nd, 2011, held at the Austrian National Bank (OeNB) jointly with the WU Vienna University of Economics and Business, the Austrian Economic Research Institute (WIFO), and the University of Linz.
Minimum-time lateral interception of a moving target by a Dubins car
Creators: name: Buzikov, Maksim
name: Galyaev, Andrey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper presents the problem of lateral interception by a Dubins car of a target that moves along an a priori known trajectory. This trajectory is given by two coordinates of a planar location and one angle of a heading orientation, every one of them is a continuous function of time. The optimal trajectory planning problem of constructing minimum-time trajectories for a Dubins car in the presence of a priory known time-dependent wind vector field is a special case of the presented problem. Using the properties of the three-dimensional reachable set of a Dubins car, it is proved that the optimal interception point belongs to a part of an analytically described surface in the three-dimensional space. The analytical description of the surface makes it possible to obtain 10 algebraic equations for calculating parameters of the optimal control that implements the minimum-time lateral interception. These equations are generally transcendental and can be simplified for particular cases of target motion (e.g. resting target, straight-line uniform target motion). Finally, some particular cases of the optimal lateral interception validate developments of the paper and highlight the necessity to consider each of 10 algebraic equations in general case.
description: 16 pages, 19 figures
Personal memories
Creators: name: Trakas, Marina
Publisher: name: Macquarie University
Year: 2023
Subjects: Other education not elsewhere classified

description: In this thesis I present an in depth analysis of a mental phenomenon widely neglected in current philosophical discussions : personal memories. Personal memory is the general term I use throughout this thesis to refer in a broad sense to all kinds of memories of our personal past. It is the aim of this thesis to analyse and determine with more precision the different memory phenomena that are at first sight united in referring to or including the rememberer in a way that is completely absent from the memory knowledge that we have about impersonal facts of the world.
Constrained Secrecy Capacity of Finite-Input Intersymbol Interference Wiretap Channels
Creators: name: Nouri, Aria
name: Asvadi, Reza
name: Chen, Jun
name: Vontobel, Pascal O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider reliable and secure communication over intersymbol interference wiretap channels (ISI-WTCs). In particular, we first derive an achievable secure rate for ISI-WTCs without imposing any constraints on the input distribution. Afterwards, we focus on the setup where the input distribution of the ISI-WTC is constrained to be a time-invariant finite-order Markov chain. Optimizing the parameters of this Markov chain toward maximizing the achievable secure rates is a computationally intractable problem in general, and so, toward finding a local maximum, we propose an iterative algorithm that at every iteration replaces the secure rate function with a suitable~surrogate function whose maximum can be found efficiently. Although the secure rates achieved in the unconstrained setup are potentially larger than the secure rates achieved in the constrained setup, the latter setup has the advantage of leading to efficient algorithms for estimating and optimizing the achievable secure rates, and also has the benefit of being the basis of efficient coding schemes.
description: 16 pages, 8 figures, 1 table
Isospin Symmetry violation in mirror E1 transitions: Coherent contributions from the Giant Isovector Monopole Resonance in 67As - 67Se
Creators: name: Bizzeti, P. G.
name: de Angelis, G.
name: Lenzi, S. M.
name: Orlandi, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The assumption of an exact isospin symmetry would imply equal strengths for mirror E1 transitions (at least, in the long-wavelength limit). Actually, large violations of this symmetry rule have been indicated by a number of experimental results, the last of which is the 67As - 67Se doublet investigated at GAMMASPHERE. Here, we examine in detail various possible origins of the observed asymmetry. The coherent effect of Coulomb-induced mixing with the high-lying Giant Isovector Monopole Resonance is proposed as the most probable process to produce a large asymmetry in the E1 transitions, with comparatively small effect on the other properties of the parent and daughter levels.
description: 14 pages, 2 figures
CHORA, BRASIL!
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 09 – vol. 08 – n. 59/2021
Bem que o título poderia tratar das conquistas do Brasil nas
Olimpíadas, mas não é. Claro, isto não subtrai a importância. De emoção se chora na alegria e na tristeza. Mas o Brasil de hoje não é cenário de alegrias.
Development of a resonant laser ionization gas cell for high-energy, short-lived nuclei
Creators: name: Sonoda, T.
name: Wada, M.
name: Tomita, H.
name: Sakamoto, C.
name: Takatsuka, T.
name: Furukawa, T.
name: Iimura, H.
name: Ito, Y.
name: Kubo, T.
name: Matsuo, Y.
name: Mita, H.
name: Naimi, S.
name: Nakamura, S.
name: Noto, T.
name: Schury, P.
name: Shinozuka, T.
name: Wakui, T.
name: Miyatake, H.
name: Jeong, S.
name: Ishiyama, H.
name: Watanabe, Y. X.
name: Hirayama, Y.
name: Okada, K.
name: Takamine, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A new laser ion source configuration based on resonant photoionization in a gas cell has been developed at RIBF RIKEN. This system is intended for the future PArasitic RI-beam production by Laser Ion-Source (PALIS) project which will be installed at RIKEN's fragment separator, BigRIPS. A novel implementation of differential pumping, in combination with a sextupole ion beam guide (SPIG), has been developed. A few small scroll pumps create a pressure difference from 1000 hPa - 10^-3 Pa within a geometry drastically miniaturized compared to conventional systems. This system can utilize a large exit hole for fast evacuation times, minimizing the decay loss for short-lived nuclei during extraction from a buffer gas cell, while sufficient gas cell pressure is maintained for stopping high energy RI-beams. In spite of the motion in a dense pressure gradient, the photo-ionized ions inside the gas cell are ejected with an assisting force gas jet and successfully transported to a high-vacuum region via SPIG followed by a quadrupole mass separator. Observed behaviors agree with the results of gas flow and Monte Carlo simulations.
Associated 21-cm absorption towards the cores of radio galaxies
Creators: name: Chandola, Yogesh
name: Gupta, Neeraj
name: Saikia, D. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of Giant Metrewave Radio Telescope (GMRT) observations to detect H{\sc i} in absorption towards the cores of a sample of radio galaxies. From observations of a sample of 16 sources, we detect H{\sc i} in absorption towards the core of only one source, the FR\,II radio galaxy 3C\,452 which has been reported earlier by Gupta & Saikia (2006a). In this paper we present the results for the remaining sources which have been observed to a similar optical depth as for a comparison sample of compact steep-spectrum (CSS) and giga-hertz peaked spectrum (GPS) sources. We also compile available information on H{\sc i} absorption towards the cores of extended radio sources observed with angular resolutions of a few arcsec or better. The fraction of extended sources with detection of H{\sc i} absorption towards their cores is significantly smaller (7/47) than the fraction of H{\sc i} detection towards CSS and GPS objects (28/49). For the cores of extended sources, there is no evidence of a significant correlation between H{\sc i} column density towards the cores and the largest linear size of the sources. The distribution of the relative velocity of the principal absorbing component towards the cores of extended sources is not significantly different from that of the CSS and GPS objects. However, a few of the CSS and GPS objects have blue-shifted components $\gapp$1000 km s$^{-1}$, possibly due to jet-cloud interactions. With the small number of detections towards cores, the difference in detection rate between FR\,I (4/32) and FR\,II (3/15) sources is within the statistical uncertainties.
description: 13 pages, 19 figures, accepted for publication in MNRAS
Uncovering Bias in Order Assignment
Creators: name: Grant, Darren
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Econometrics (econ.EM)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: J.4
subject: 62P25, 62P20, 62G10

description: Many real life situations require a set of items to be repeatedly placed in a random sequence. In such circumstances, it is often desirable to test whether such randomization indeed obtains, yet this problem has received very limited attention in the literature. This paper articulates the key features of this problem and presents three "untargeted" tests that require no a priori information from the analyst. These methods are used to analyze the order in which lottery numbers are drawn in Powerball, the order in which contestants perform on American Idol, and the order of candidates on primary election ballots in Texas and West Virginia. In this last application, multiple deviations from full randomization are detected, with potentially serious political and legal consequences. The form these deviations take varies, depending on institutional factors, which sometimes necessitates the use of tests that exchange power for increased robustness.
description: 29 pages of text, 7 tables
Additional file 4 of simATAC: a single-cell ATAC-seq simulation framework
Creators: name: Navidi, Zeinab
name: Zhang, Lin
name: Wang, Bo
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Additional file 4 Review history.