cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Coherent control of a nanomechanical two-level system
Creators: name: Faust, Thomas
name: Rieger, Johannes
name: Seitner, Maximilian J.
name: Kotthaus, Jörg P.
name: Weig, Eva M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Bloch sphere is a generic picture describing a coupled two-level system and the coherent dynamics of its superposition states under control of electromagnetic fields. It is commonly employed to visualise a broad variety of phenomena ranging from spin ensembles and atoms to quantum dots and superconducting circuits. The underlying Bloch equations describe the state evolution of the two-level system and allow characterising both energy and phase relaxation processes in a simple yet powerful manner. Here we demonstrate the realisation of a nanomechanical two-level system which is driven by radio frequency signals. It allows to extend the above Bloch sphere formalism to nanoelectromechanical systems. Our realisation is based on the two orthogonal fundamental flexural modes of a high quality factor nanostring resonator which are strongly coupled by a dielectric gradient field. Full Bloch sphere control is demonstrated via Rabi, Ramsey and Hahn echo experiments. This allows manipulating the classical superposition state of the coupled modes in amplitude and phase and enables deep insight into the decoherence mechanisms of nanomechanical systems. We have determined the energy relaxation time T1 and phase relaxation times T2 and T2*, and find them all to be equal. This not only indicates that energy relaxation is the dominating source of decoherence, but also demonstrates that reversible dephasing processes are negligible in such collective mechanical modes. We thus conclude that not only T1 but also T2 can be increased by engineering larger mechanical quality factors. After a series of ground-breaking experiments on ground state cooling and non-classical signatures of nanomechanical resonators in recent years, this is of particular interest in the context of quantum information processing.
Global virulence regulators of Pseudomonas aeruginosa
Creators: name: Juhas, Mario
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Pseudomonas aeruginosa
subject: quorum sensing
subject: intracellular survival
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Environmental sustainability in basic research: a perspective from HECAP+
Creators: name: Banerjee, Shankha
name: Chen, Thomas Y.
name: David, Claire
name: Düren, Michael
name: Erbin, Harold
name: Ghiglieri, Jacopo
name: Gill, Mandeep S. S.
name: Glaser, L.
name: Gütschow, Christian
name: Hall, Jack Joseph
name: Hampp, Johannes
name: Koppenburg, Patrick
name: Koschnitzke, Matthias
name: Lohwasser, Kristin
name: Mahbubani, Rakhi
name: Mehta, Viraf
name: Millington, Peter
name: Paul, Ayan
name: Poblotzki, Frauke
name: Potamianos, Karolos
name: Šarčević, Nikolina
name: Singh, Rajeev
name: Wakeling, Hannah
name: Walker, Rodney
name: van der Wild, Matthijs
name: Zurita, Pia
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023

description: The climate crisis and the degradation of the world's ecosystems require humanity to take immediate action. The international scientific community has a responsibility to limit the negative environmental impacts of basic research. The HECAP+ communities (High Energy Physics, Cosmology, Astroparticle Physics, and Hadron and Nuclear Physics) make use of common and similar experimental infrastructure, such as accelerators and observatories, and rely similarly on the processing of big data. Our communities therefore face similar challenges to improving the sustainability of our research. This document aims to reflect on the environmental impacts of our work practices and research infrastructure, to highlight best practice, to make recommendations for positive changes, and to identify the opportunities and challenges that such changes present for wider aspects of social responsibility.
title: The adoption of digital financial reporting formats in Germany
title: perceptions and experiences on the potential impacts of the ESEF regulation on the preparation, disclosure, and usage of annual reports
titleType: Subtitle
Creators: name: Mäurer, Marina
name: Pieper, Hendrik
name: Zülch, Henning
Year: 2022

description: The year 2020 marks a year of change in the European accounting community, as the European Single Electronic Format (ESEF regulation) makes its entrance into financial reporting. It obliges firms listed on stock exchanges in the European Un-ion (EU) to disclose annual reports in a standard electronic format. This study analyses the ways in which the introduction of a mandatory, standardized digital financial reporting format changes the way annual reports are being prepared, dis-closed, and used. It takes a producer perspective, i.e., evaluating this question from the point of view of companies preparing and disclosing annual reports as well as auditors and advisors, supporting the preparation and quality assurance. The focus is on German listed companies, for which ESEF will be mandatory for annual re-port disclosures from the fiscal year 2020 onwards. To develop propositions on that topic, expert interviews are conducted with representatives of German listed companies, auditing, and advisory firms. These interviews are analyzed following a grounded theory-based approach in coherence with the Gioia methodology. The results show three aggregated dimensions that are relevant for the digital financial reporting introduction in Germany. These dimensions differentiate between short-term and long-term impacts of the regulation, reflecting on it being just a format now but analyzing its game changing potential for the future. This study contributes to the ongoing discussion of how innovations affect listed companies and the financial communication.
description: HHL-Arbeitspapier / HHL Working paper; 198
New Boundary Conditions for AdS3
Creators: name: Compère, Geoffrey
name: Song, Wei
name: Strominger, Andrew
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: New chiral boundary conditions are found for quantum gravity with matter on AdS3. The associated asymptotic symmetry group is generated by a single right-moving U(1) Kac-Moody-Virasoro algebra with c_R = 3l/2G. The Kac-Moody zero mode generates global left-moving translations and equals, for a BTZ black hole, the sum of the total mass and spin. The level is positive about the global vacuum and negative in the black hole sector, corresponding to ergosphere formation. Realizations arising in Chern-Simons gravity and string theory are analyzed. The new boundary conditions are shown to naturally arise for warped AdS3 in the limit that the warp parameter is taken to zero.
description: 34 pages
Gravitational wave observation from space : optical measurement techniques for LISA and LISA pathfinder
Creators: name: Guzmán Cervantes, Felipe
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2009
Subjects: subject: Gravitational wave detection in space
subject: laser interferometry
subject: noise subtraction
subject: data analysis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Single Hole Transport in a Silicon Metal-Oxide-Semiconductor Quantum Dot
Creators: name: Li, R.
name: Hudson, F. E.
name: Dzurak, A. S.
name: Hamilton, A. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe a planar silicon metal-oxide-semiconductor (MOS) based single hole transistor, which is compatible with conventional Si CMOS fabrication. A multi-layer gate design gives independent control of the carrier density in the dot and reservoirs. Clear Coulomb blockade oscillations are observed, and source-drain biasing measurements show that it is possible to deplete the dot down to the few hole regime, with excited states clearly visible. The architecture is sufficiently versatile that a second hole dot could be induced adjacent to the first one.
description: 4 pages, 4 figures. The following article has been submitted to Applied Physics Letters
Preventing Phishing Attacks using One Time Password and User Machine Identification
Creators: name: Khan, Ahmad Alamgir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Phishing is a type of attack in which cyber criminals tricks the victims to steal their personal and financial data. It has become an organized criminal activity. Spoofed emails claiming to be from legitimate source are crafted in a way to lead victims to reveal their personal, financial data by misdirecting them to the counterfeit website. This research paper presents a novel approach to combat the Phishing attacks. An approach is proposed where user will retrieve the one time password by SMS or by alternate email address. After receiving the one time password the web server will create an encrypted token for the users computer or device for authentication. The encrypted token will be used for identification, any time user wishes to access the website he or she must request the new password. The one time password as name implies will expire after single use. The one time password and encrypted token is a smart way to tackle this problem.
description: 5 Pages, 8 Figures, Published with International Journal of Computer Applications 0975 8887 Volume 68 No.3, April 2013
On f-biharmonic maps and f-biharmonic submanifolds
Creators: name: Ou, Ye-Lin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58E20, 53C43

description: f-Biharmonic maps are the extrema of the f-bienergy functional. f-biharmonic submanifolds are submanifolds whose defining isometric immersions are f-biharmonic maps. In this paper, we prove that an f-biharmonic map from a compact Riemannian manifold into a non-positively curved manifold with constant f-bienergy density is a harmonic map; any f-biharmonic function on a compact manifold is constant, and that the inversions about $S^m$ for $m\ge 3$ are proper f-biharmonic conformal diffeomorphisms. We derive f-biharmonic submanifolds equations and prove that a surface in a manifold $(N^n, h)$ is an f-biharmonic surface if and only it can be biharmonically conformally immersed into $(N^n,h)$. We also give a complete classification of f-biharmonic curves in 3-dimensional Euclidean space. Many examples of proper f-biharmonic maps and f-biharmonic surfaces and curves are given.
description: 18 pages
Explaining the observed velocity dispersion of dwarf galaxies by baryonic mass loss during the first collapse
Creators: name: Gritschneder, Matthias
name: Lin, Douglas N. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the widely adopted LambdaCDM scenario for galaxy formation, dwarf galaxies are the building blocks of larger galaxies. Since they formed at relatively early epochs when the background density was relatively high, they are expected to retain their integrity as satellite galaxies when they merge to form larger entities. Although many dwarf spheroidal galaxies (dSphs) are found in the galactic halo around the Milky Way, their phase space density (or velocity dispersion) appears to be significantly smaller than that expected for satellite dwarf galaxies in the LambdaCDM scenario. In order to account for this discrepancy, we consider the possibility that they may have lost a significant fraction of their baryonic matter content during the first infall at the Hubble expansion turnaround. Such mass loss arises naturally due to the feedback by relatively massive stars which formed in their centers briefly before the maximum contraction. Through a series of N-body simulations, we show that the timely loss of a significant fraction of the dSphs initial baryonic matter content can have profound effects on their asymptotic half-mass radius, velocity dispersion, phase-space density, and the mass fraction between residual baryonic and dark matter.
description: 6 pages, 6 figures, accepted for publication in the ApJ
Analysis of Nucleosides and Nucleotides in Plants : An Update on Sample Preparation and LC–MS Techniques
Creators: name: Straube, Henryk
name: Witte, Claus-Peter
name: Herde, Marco
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: nucleotides
subject: nucleosides
subject: mass spectrometry
subject: liquid chromatography
subject: quenching
subject: solid phase extraction
subject: hydrophilic interaction liquid chromatography (HILIC)
subject: plant nucleotide metabolism
subject: plant metabolomics
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Nucleotides fulfill many essential functions in plants. Compared to non-plant systems, these hydrophilic metabolites have not been adequately investigated in plants, especially the less abundant nucleotide species such as deoxyribonucleotides and modified or damaged nucleotides. Until recently, this was mainly due to a lack of adequate methods for in-depth analysis of nucleotides and nucleosides in plants. In this review, we focus on the current state-of-the-art of nucleotide analysis in plants with liquid chromatography coupled to mass spectrometry and describe recent major advances. Tissue disruption, quenching, liquid–liquid and solid-phase extraction, chromatographic strategies, and peculiarities of nucleotides and nucleosides in mass spectrometry are covered. We describe how the different steps of the analytical workflow influence each other, highlight the specific challenges of nucleotide analysis, and outline promising future developments. The metabolite matrix of plants is particularly complex. Therefore, it is likely that nucleotide analysis methods that work for plants can be applied to other organisms as well. Although this review focuses on plants, we also discuss advances in nucleotide analysis from non-plant systems to provide an overview of the analytical techniques available for this challenging class of metabolites.
Cerastium uniflorum Clairv.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. uniflorum Clairv. Cat. 53 und 423. l: Luisin (Coquoz); Fontanabran (F.); Emosson, bei nur 1750m (P. Jaccard). - 3: Valsorey (Guyot); Les Grands Plans (Miller); Glacier de Breney (J.); Val des Dix (J., 0. Meylan); Col de Torrent (Beauverd); ob Zinal (Mariétan); Turtmanngletscher (J.); Arb ob Törbel (Stehler); Gasenried ob Grächen (Beauverd); Täschalp (Mantz); Gipfel des Oberrothorns bei Zermatt,3415 m (Braun-Blanquet 1919), anscheinend höchste Stelle; Alpen von Saas vielfach (A. Keller,]Mantz, Brunner, Heinis u. a.). - 4: Grüneggfirn unter der Grünhornlücke(Aletschgebiet), 3200m (Oberson); Binntal, mehrfach (Binz); Eginental (P.). Forma subacaule (Hegetschw.) Schinz et Thell. - 3: Ob der oberen Täschalp (Huber); Lange Fluh ob Saas-Fee (idem). Forma glutinosum (Hegetschw.) Braun-Blanquet (C. latifolium var. glutinosum Gürke) - 3: Hörnli ob Zermatt (P.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Confined active nematic flow in cylindrical capillaries
Creators: name: Ravnik, Miha
name: Yeomans, Julia M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use numerical modelling to study the flow patterns of an active nematic confined in a cylindrical capillary, considering both planar and homeotropic boundary conditions. We find that active flow emerges not only along the capillary axis but also within the plane of the capillary, where radial vortices are formed. If topological defects are imposed by the boundary conditions, they act as local pumps driving the flow. At higher activity we demonstrate escape of the active defects and flow into the third dimension, indicating the importance of dimensionality in active materials. We argue that measuring the magnitude of the active flow as a function of the capillary radius allows determination of a value for the activity coefficient.
description: 5 pages, 3 figures
title: Management Quality of Professional Football Clubs
title: The Football Management (FoMa) Q-Score 2022
titleType: Subtitle
Creators: name: Zülch, Henning
name: Palme, Moritz
name: Kirsch, Benedikt
Year: 2022
Subjects: subject: 330 Wirtschaft

description: Managing a football club has become much more complex in recent years, as the clubs have turned into football companies and a growing number of stakeholders have entered the in-dustry. The clubs’ capabilities to handle the increased complexity vary, turning management quality into a crucial competitive (dis-)advantage. This new 2022 edition of the FoMa Q-Score ranking builds on the framework established by ZÜLCH & PALME (2017), which comprehensively assesses management quality along four dimensions, namely Sporting Success, Financial Per-formance, Fan Welfare Maximization and Leadership & Governance, in order to perform a longitudinal and cross-sectional analysis of the German professional football clubs’ manage-ment quality. As confirmed by high-level football club executives, these dimensions are able to objectively quantify relevant success factors of a professional football club (ZÜLCH, CRUZ, & SCHREGEL, 2021). Ultimately, the performance in all dimensions, referred to as FoMa Q-Score, indicates a club’s management quality. Consequently, the FoMa Q-Score has become a well-established management tool in science as well as in practice in recent years, even more so in light of the fallout of the COVID-19 pandemic. The high scientific quality has been confirmed by the publication of this tool in the internationally renowned sports science journal "Sports, Business and Management" in 2020. From the practitioners’ perspective it can be observed that interested football managers are already making use of our findings, which now also re-flect the COVID-19 effects on financials and non-financials in this latest, 6th edition, and derive specific actions to benchmark their club’s setups in order to make up ground or defend their competitive positions.
description: HHL-Arbeitspapier / HHL Working paper; 199
Origin of Ultrafast Ag Radiotracer Diffusion in Shear Bands of Deformed Bulk Metallic Glass Pd40Ni40P20
Creators: name: Ngai, K. L.
name: Yu, Hai Bin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Measurements of Ag radiotracer diffusion in shear bands of deformed bulk metallic glass, Pd40Ni40P20, [Joachim Bokeloh, Sergiy V. Divinski, Gerrit Reglitz, and Gerhard Wilde, Phys. Rev. Lett. 107, 235503 (2011).] have found a colossal enhancement of diffusion coefficient by more than eight orders of magnitude than in undeformed Pd40Ni40P20. Suggestion was made by Bokeloh et al. that enhanced diffusion occurs in high-mobility pathways originating from some excess free volume distribution inside the shear bands. Although plausible, this qualitative suggestion does not allow quantitative calculation of the enhancement. The impasse is avoided by using the Coupling Model to calculate the maximum of the enhancement of diffusivity possible in high-mobility pathways of the shear bands. Within the range of eight to ten orders of magnitude, the calculated maximum enhancement is capable to account for the experimental observation.
description: 23 pages, 2 figures
Crawling scallop: Friction-based locomotion with one degree of freedom
Creators: name: Wagner, Gregory L.
name: Lauga, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Fluid-based locomotion at low Reynolds number is subject to the constraints of the scallop theorem, which dictate that body kinematics identical under a time-reversal symmetry (in particular, those with a single degree of freedom) cannot display locomotion on average. The implications of the theorem naturally compel one to ask whether similar symmetry constraints exist for locomotion in different environments. In this work we consider locomotion along a surface where forces are described by isotropic Coulomb friction. To address whether motions with a single degree of freedom can lead to transport, we analyze a model system consisting of two bodies whose separation distance undergoes periodic time variations. The behavior of the two-body system is entirely determined by the kinematic specification of their separation, the friction forces, and the mass of each body. We show that the constraints of the scallop theorem can be escaped in frictional media if two asymmetry conditions are met at the same time: the frictional forces of each body against the surface must be distinct and the time-variation of the body-body separation must vary asymmetrically in time (so quick-slow or slow-quick in the extension-contraction phases). Our results are demonstrated numerically and interpreted using asymptotic expansions.
Identification of regulators and effectors of single-cell C4 morphology by comparative transcriptomics of dark-grown cotyledons of the single-cell C4 plant Bienertia sinuspersici and the related C3 plant Suaeda heterophylla
Creators: name: Hagenau, Lisa
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Single-cell C4 photosynthesis
subject: RNA sequencing
subject: comparative transcriptomics
subject: Single-cell C4 Photosynthese
subject: RNA-Sequenzierung
subject: vergleichende Transkriptomanalyse
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
"FAIR-by-Desing" Artifacts: Enriching Publications and Software with FAIR Scientific Information at the Time of Creation
Creators: name: Kuckertz, Patrick
name: Karras, Oliver
name: Göpfert, Jan-Maris
name: Pelser, Tristan
name: Pueblas, Rodrigo
name: Weinand, Jann
name: Stolten, Detlef
name: Auer, Sören
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: NFDI4Ing Konferenz 2023, Online, Germany, 27 Sep 2023 - 28 Sep 2023
description: see attached
On the fluctuation of thermal van der Waals forces due to dipole fluctuations
Creators: name: Dean, D. S.
name: Parsegian, V. A.
name: Podgornik, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Fluctuations of the thermal or classical component of the van der Waals force between two dielectric slabs, modelled as an ensemble of polarizable dipoles which interact via the usual electrostatic dipole-dipole interaction, are evaluated. In the model the instantaneous force is a deterministic function of the dipole configurations in the slabs and its fluctuations are purely due to dipole fluctuations (no background thermal fluctuations of the electromagnetic field are considered). The average of the force and its variance are computed. The fluctuations of the force exhibit normal thermodynamic scaling in that they are proportional to the area of the two plates, and even more importantly, do not depend on any microscopic cut-off in the theory. The average and the variance of the thermal van der Waals forces give a unique fingerprint of these fluctuation interactions.
description: 5 pages Revtex
Guided self-organisation in open distributed systems
Creators: name: Kantert, Jan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2018
Subjects: subject: Self-organisation
subject: open distributed system
subject: multi-agent systems
subject: Selbstorganisation
subject: offene verteilte Systeme
subject: Multi-Agenten-Systeme
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
Irreducible triangulations of the Möbius band
Creators: name: Chávez, María-José
name: Lawrencenko, Serge
name: Quintero, Antonio
name: Villar, María Trinidad
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: [2010]: 05C10 (Primary), 57M20, 57N05 (Secondary)

description: A complete list of irreducible triangulations is identified on the Möbius band.
High magnetic field reveals the nature of excitons in a single GaAs/AlAs core/shell nanowire
Creators: name: Plochocka, P.
name: Mitioglu, A. A.
name: Maude, D. K.
name: Rikken, G. L. J. A.
name: del Aguila, A. Granados
name: Christianen, P. C. M.
name: Kacman, P.
name: Shtrikman, Hadas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magneto-photoluminescence measurements of individual zinc-blende GaAs/AlAs core/shell nanowires are reported. At low temperature a strong emission line at 1.507 eV is observed under low power (nW) excitation. Measurements performed in high magnetic field allowed us to detect in this emission several lines associated with excitons bound to defect pairs. Such lines were observed before in epitaxial GaAs of very high quality, as reported by Kunzel and Ploog. This demonstrates that the optical quality of our GaAs/AlAs core/shell nanowires is comparable to the best GaAs layers grown by molecular beam epitaxy. Moreover, strong free exciton emission is observed even at room temperature. The bright optical emission of our nanowires in room temperature should open the way for numerous optoelectronic device applications.
description: Nano Letters (2013)- published online http://dx.doi.org/10.1021/nl400417x
Identification of the Effect of Ultrasonic Friction Reduction in Metal-Elastomer Contacts Using a Two-Control-Loop Tribometer
Creators: name: Weinstein, Michael
name: Nowroth, Christian
name: Twiefel, Jens
name: Wallaschek, Jörg
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: ultrasonic vibrations
subject: friction reduction
subject: pneumatic cylinders
subject: stick-slip effect
subject: breakaway force
subject: sliding friction force
subject: rubber/metal coupled contact
subject: Dewey Decimal Classification::600 | Technik

description: Pneumatic cylinders are widely used in highly dynamic processes, such as handling and conveying tasks. They must work both reliably and accurately. The positioning accuracy suffers from the stick-slip effect due to strong adhesive forces during the seal contact and the associated high breakaway forces. To achieve smooth motion of the piston rod and increased position accuracy despite highly variable position dynamics, sliding friction and breakaway force must be reduced. This contribution presents a specially designed linear tribometer that has two types of control. Velocity control allows the investigation of sliding friction mechanisms. Friction force control allows investigation of the breakaway force. Due to its bearing type, the nearly disturbance-free detection of stick-slip transients and the dynamic contact behavior of the sliding friction force was possible. The reduction of the friction force was achieved by a superposition of the piston rod’s movement by longitudinal ultrasonic vibrations. This led to significant reductions in friction forces at the rubber/metal interface. In addition, the effects of ultrasonic frequency and vibration amplitude on the friction reduction were investigated. With regard to the breakaway force, significant success was achieved by the excitation. The force control made it possible to identify the characteristic movement of the sealing ring during a breakaway process.
Influence of a Dynamic Consolidation Force on In Situ Consolidation Quality of Thermoplastic Composite Laminate
Creators: name: Denkena, Berend
name: Schmidt, Carsten
name: Kaczemirzk, Maximilian
name: Schwinn, Max
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: CFRP
subject: thermoplastic
subject: in situ consolidation
subject: vibration
subject: AFP
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: For achieving high quality of in situ consolidation in thermoplastic Automated Fiber Placement, an approach is presented in this research work. The approach deals with the combination of material pre-heating and sub-ultrasonic vibration treatment. Therefore, this research work investigates the influence of frequency dependent consolidation pressure on the consolidation quality. A simplified experimental setup was developed that uses resistance electrical heating instead of the laser to establish the thermal consolidation condition in a universal testing machine. Consolidation experiments with frequencies up to 1 kHz were conducted. The manufactured specimens are examined using laser scanning microscopy to evaluate the bonding interface and differential scanning calorimetry to evaluate the degree of crystallinity. Additionally, the vibration-assisted specimens were compared to specimens manufactured with static consolidation pressure only. As a result of the experimental study, the interlaminar pore fraction and degree of compaction show a positive dependency to higher frequencies. The porosity decreases from 0.60% to 0.13% while the degree of compaction increases from 8.64% to 12.49% when increasing the vibration frequency up to 1 kHz. The differential scanning calorimetry experiments show that the crystallinity of the matrix is not affected by vibration-assisted consolidation.
Chasing Unbiased Spectra of the Universe
Creators: name: Song, Yong-Seon
name: Nishimichi, Takahiro
name: Taruya, Atsushi
name: Kayo, Issha
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cosmological power spectrum of the coherent matter flow is measured exploiting an improved prescription for the apparent anisotropic clustering pattern in redshift space. New statistical analysis is presented to provide an optimal observational platform to link the improved redshift distortion theoretical model to future real datasets. The statistical power as well as robustness of our method are tested against 60 realizations of 8 Gpc/h^3 dark matter simulation maps mocking the precision level of upcoming wide--deep surveys. We showed that we can accurately extract the velocity power spectrum up to quasi linear scales of k~0.1 h/Mpc at z = 0.35 and up to k~0.15 h/Mpc at higher redshifts within a couple of percentage precision level. Our understanding of redshift space distortion is proved to be appropriate for precision cosmology, and our statistical method will guide us to righteous path to meet the real world.
description: 9 pages, 7 figures
Entwicklung, Optimierung und Erprobung von Nachweisverfahren von Viren an Apfel und Untersuchungen zur Ätiologie der Gummiholzkrankheit (ARW)
Creators: name: Menzel, Wulf
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Detection
subject: apple viruses
subject: apple rubbery wood
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Physiologische und molekulargenetische Charakterisierung der Geschlechtsausprägung bei der Gurke (Cucumis sativus L.) : unter besonderer Berücksichtigung der Ethylensynthese und der Ethylensignaltransduktion
Creators: name: Mibus, Heiko
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Cucumis sativus L.
subject: cucumber
subject: sex expression
subject: ethylene biosynthesis
subject: ethylene signal transduction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: [no abstract]
Pereira Fantini Impact VT strategy at birth_ARRIVE_12Apr23
Creators: name: TINGAY, DAVID
Publisher: name: University of Melbourne
Year: 2023
Subjects: Respiratory diseases
Neonatology
Systems physiology
Cell physiology

description: ARRIVE Statement for Impact of tidal volume strategy at birth on lung injury in preterm lambs (First Author PM Pereira-Fantini)
Photocatalytic H2 Production from Naphthalene by Various TiO2 Photocatalysts : Impact of Pt Loading and Formation of Intermediates
Creators: name: Al-Madanat, Osama
name: AlSalka, Yamen
name: Dillert, Ralf
name: Bahnemann, Detlef W.
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: naphthalene
subject: photoreforming
subject: Hombikat UV100
subject: Aeroxide P25
subject: H2 production
subject: EPR
subject: charge carrier
subject: Pt-TiO2
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: This work presents a comparative study of the efficiency of two commercial TiO2 photocatalysts, Aeroxide P25 (ATiO2) and Sachtleben Hombikat UV100 (HTiO2), in H2 production from an aqueous solution of naphthalene. The TiO2 photocatalysts were platinized by the photodeposition method varying the platinum content of the suspension to 0.5, 1.0, and 5.0 wt%. A full physicochemical characterization for these materials was performed, showing no structural effects from the deposition method, and confirming a well dispersion of nanosized-Pt0 particles on the surface of both photocatalysts. Pristine ATiO2 shows around 14% higher photocatalytic fractional conversion of naphthalene than pristine HTiO2 after 240 min of irradiation, while both materials exhibit negligible activity for H2 formation. The 0.5 wt% Pt- HTiO2 increases the photocatalytic fractional conversion of naphthalene from 71% to 82% and produces 6 µmol of H2. However, using a higher Pt content than the optimal platinization ratio of 0.5 wt% dramatically inhibits both processes. On the other hand, regardless of the fractional ratio of Pt, the platinization of ATiO2 results in a decrease in the fractional conversion of naphthalene by 4% to 33% of the pristine value. Although the presence of Pt islands on the surface of the ATiO2 is essential for the H2 evolution, no dependency between the Pt ratio and the H2 formation rate was observed since all the platinized materials show a similar H2 formation of around 3 µmol. Based on the EPR results, the higher photocatalytic activity of the Pt-HTiO2 is attributed to the efficient charge carrier separation and its larger surface area. The recyclability test confirms that the inhibition of the photocatalytic process is related to the deactivation of the photocatalyst surface by the adsorption of the photoformed intermediates. A strong relationship between the photocatalytic activity and the kind of the aromatic compounds was observed. The H2 evolution and the photooxidation of the aromatic hydrocarbons exhibit higher photonic efficiencies than that of their corresponding hydroxylated compounds over the Pt-HTiO2
Chaos detection tools: application to a self-consistent triaxial model
Creators: name: Maffione, Nicolás
name: Darriba, Luciano
name: Cincotta, Pablo
name: Giordano, Claudia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Together with the variational indicators of chaos, the spectral analysis methods have also achieved great popularity in the field of chaos detection. The former are based on the concept of local exponential divergence. The latter are based on the numerical analysis of some particular quantities of a single orbit, e.g. its frequency. In spite of having totally different conceptual bases, they are used for the very same goals such as, for instance, separating the chaotic and the regular component. In fact, we show herein that the variational indicators serve to distinguish both components of a Hamiltonian system in a more reliable fashion than a spectral analysis method does. We study two start spaces for different energy levels of a self-consistent triaxial stellar dynamical model by means of some selected variational indicators and a spectral analysis method. In order to select the appropriate tools for this paper, we extend previous studies where we make a comparison of several variational indicators on different scenarios. Herein, we compare the Average Power Law Exponent (APLE) and an alternative quantity given by the Mean Exponential Growth factor of Neary Orbits (MEGNO): the MEGNO's Slope Estimation of the largest Lyapunov Characteristic Exponent (SElLCE). The spectral analysis method selected for the investigation is the Frequency Modified Fourier Transform (FMFT). Besides a comparative study of the APLE, the Fast Lyapunov Indicator (FLI), the Orthogonal Fast Lyapunov Indicator (OFLI) and the MEGNO/SElLCE, we show that the SElLCE could be an appropriate alternative to the MEGNO when studying large samples of initial conditions. The SElLCE separates the chaotic and the regular components reliably and identifies the different levels of chaoticity. We show that the FMFT is not as reliable as the SElLCE to describe clearly the chaotic domains in the experiments.
description: 19 pages, 10 figures, MNRAS accepted. Revised to reflect the final version
Studien zur Ontogenese der Wachstumshormonrezeptorgenexpression beim Schwein (Sus scrofa domestica)
Creators: name: Mielenz, Manfred
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Growth hormone-receptor
subject: gene expression
subject: pig
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Carboxypeptidase Z und Lix1 in der Embryogenese der Vertebraten
Creators: name: Möller, Carsten
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Carboxypeptidase Z
subject: somite
subject: sclerotome
subject: scapula
subject: rib
subject: Wnt
subject: cysteine-rich-domain
subject: CRD
subject: AER
subject: Lix1
subject: substantia nigra
subject: cerebral cortex
subject: cortical layer 5
subject: dorsal root ganglia
subject: limbs
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
title: Thylacine Dreams: The Vernacular Resurrection of an Extinct Marsupial
Creators: name: Ahlstone, Daisy M.
Publisher: name: Utah State University
Year: 2019

description: This thesis explores the folk resurrection of the thylacine through artwork and symbolic interaction. The thylacine, better known as the Tasmanian tiger, is a marsupial that suffered a government-sanctioned massacre leading to its extinction in 1936. The thylacine’s status as a hidden animal has inspired what folklorists call “ostensive practice”; people not only actively seek out the thylacine in the wilderness of Tasmania today and share their sightings online, but they have also incorporated the thylacine as a symbol of hope and perseverance into various forms of folk art.

There have been upwards of five thousand documented sightings of the thylacine since its extinction. This documentation can take the form of amateur or phone-recorded films, or sightings described in interviews for local news agencies. Some people have even found alleged biological remains of the thylacine and have described hearing its unique call. In addition to these types of legend-tripping activities, the thylacine is also represented in a variety of folk-art forms, including digital, painted, and hand-drawn artwork, written fiction, fiber arts, and costuming. This content is shared widely across the internet.

Keeping the thylacine alive through the creation of folk art and legend-tripping search parties helps thylacine enthusiasts cope with the guilt for having lost an ecologically important animal due directly to ignorance and financial gain. If the thylacine is resurrected, whether literally or figuratively, people can symbolically undo some of the damage they have caused the natural world. Thus, the vernacular resurrection of the thylacine, understood through a folklorist lens, offers a model for comparing some of the vernacular ways that people are presently dealing with the general loss of wildlife due to climate change.
Ericaphis fimbriata
Creators: name: Pike, Keith S.
name: Starý, Petr
name: Graf, George
name: Raworth, David A.
name: Mathur, Sneh
name: Tanigoshi, Lynell K.
name: Murray, Todd
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Ericaphis
Ericaphis fimbriata

description: Key to female aphidiine parasitoids of blueberry aphid, Ericaphis fimbriata in the Pacific Northwest
 1 Forewing with 4 enclosed cells along anterior margin (R, 1M, 1R1, 2R1) (Fig. 2 e)....... Ephedrus incompletus Provancher
- Forewing with less than 4 enclosed cells along anterior margin (Fig. 1 a, Fig. 2 a–d, f–h)............................. 2
 2 Forewing Rs + M vein present (Praon) (Fig. 2 g)........................................................... 3
- Forewing Rs + M vein absent (Fig. 1 a, 2a–d, f, h)........................................................... 4
 3 Antenna with 14–16 segments........................................................... Praon unicum Smith
 - Antenna with 17–18 segments........................................................ Praon occidentale Baker
4 Forewing M & m-cu vein complete (Fig. 1 a, Fig. 2 a–d)....................................................... 5
- Forewing M & m-cu vein incomplete or absent (Fig. 2 f, h).................................................... 9
 5 Forewing r-rs vein near perpendicular to stigma (Fig. 2 a)......................................... Monoctonus spp.
- Forewing r-rs vein not perpendicular to stigma (Fig. 1 a, Fig. 2 b–d).............................................. 6
 6 Maxillary palp 3-segmented; labial palp 2-segmented; antenna with 14–15 segments......... Aphidius matricariae Haliday
- Maxillary palp 4-segmented; labial palp 3-segmented; antenna with at least 15 segments............................ 7
 7 Antenna with 15–16 segments......................................... Aphidius ericaphidis Pike & Starý, sp. nov.
- Antenna with 17–18 segments........................................................................... 8
 8 Petiole (= metasomal tergum 1) rugose (Fig. 1 f)............................................ Aphidius ervi Haliday
 - Petiole costate (Fig. 1 e)............................................................... Aphidius vaccinii Liu
 9 Forewing r-m present (Fig. 2 f); metasomal sternite VII without distinctive paired prongs.. Lysiphlebus testaceipes (Cresson)
 - Forewing r-m absent (Fig. 2 h); metasomal sternite VII with distinctive paired prongs.............. Trioxys gahani Smith
description: Published as part of Pike, Keith S., Starý, Petr, Graf, George, Raworth, David A., Mathur, Sneh, Tanigoshi, Lynell K. & Murray, Todd, 2011, A new Aphidius Nees (Hymenoptera, Braconidae, Aphidiinae) of Ericaphis fimbriata (Richards) (Hemiptera, Aphididae) and key to parasitoids of blueberry aphid in the Pacific Northwest, pp. 58-62 in Zootaxa 2802 on page 61, DOI: 10.5281/zenodo.207352
Spatial and luminosity distributions of galactic satellites
Creators: name: Guo, Quan
name: Cole, Shaun
name: Eke, Vincent
name: Frenk, Carlos
name: Helly, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the luminosity functions (LFs) and projected number density profiles of galactic satellites around isolated primaries of different luminosities. We measure these quantities for model satellites placed into the Millennium and Millennium II dark matter simulations by the GALFORM semi-analytic galaxy formation model for different bins of primary galaxy magnitude and we investigate their dependence on satellite luminosity. We compare our model predictions to the data of Guo et al. from the Sloan Digital Sky Survey Data Release 8 (SDSS DR8). First, we use a mock light-cone catalogue to verify that the method we used to count satellites in the SDSS DR8 is unbiased. We find that the radial distributions of model satellites are similar to those around comparable primary galaxies in the SDSS DR8, with only slight differences at low luminosities and small projected radii. However, when splitting the satellites by colour, the model and SDSS satellite systems no longer resemble one another, with many red model satellites, in contrast to the dominant blue fraction at similar luminosity in SDSS. The few model blue satellites are also significantly less centrally concentrated in the halo of their stacked primary than their SDSS counterparts. The implications of this result for the GALFORM model are discussed.
description: 11 pages, 10 figures, submitted to MNRAS
Cerastium pedunculatum Gaudin
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. pedunculatum Gaudin (C. filiforme Schleicher) Cat. 53 und 423. Bis 3200 m; abwärts bis 1760 m. l: Col de la Golette (Favarger). - 2: Alpen von Lens (Wolf). - 3: Champex (Vetter, Bernoulli); Combe de Drõnaz (Wolf); Panossière (Bernoulli); Valsorey, bis 3200m (Guyot); Glacier de Pieudet (Melly); Glacier de Corbassière (Pugsley); Glacier de Breney (J.);Val d'Hérémence (Wolf); Val des Dix (J.); Arolla, im Geschiebe der Borgne, etwa 1990m (Becherer); Zinal, Moränedes Glacier Durand, 1800m (Bernoulli); Turtmanngletscher (J.); Mloräne des Riedgletschers bei Grächen, etwa 2200m (Koch); Zermatt und Saastal verbreitet; Bortelalp ob Berisal (A. Keller). - 4: Aletschreservat (Lüdi); Konkordiahütte, 2840m (Oberson); Binntal, mehrfach (Binz, Becherer); Stockhorn ob Münster (Binz); Rhonegletscher, 1760 m (A. Keller); Maienwang (Vogel). Forma latifolioides Merxmüller - 3: Saastal (R. Beyer 1900; nach Merxmüller).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: Couple Recovery from Problematic Pornography Use: A Phenomenological Study of Change Moments and Common Factors
Creators: name: Spencer, Travis J.
Publisher: name: Utah State University
Year: 2019

description: Pornography use has been reported to have harmful effects on relationships and individuals. However, research on effective treatment for problematic pornography use (PPU) is limited. This manuscript reviews the previous treatment literature for PPU and highlights the gaps that need further study. Then, I discuss how I performed a qualitative study of 11 couples who had successfully been treated for PPU in order to analyze the key mechanisms of change that were employed in their recovery process and address the missing gaps in this field of research. The five major emerging themes from this study are Catalysts for Recovery, Foundation of Support for Recovery, The Work of Recovery, Healing Perspective of Recovery and Meaning Making, and Hindrances and Recovery Cautions (see figure in Appendix E). These themes are outlined with associated subthemes and representative quotes. Key implications for clinicians and future research are discussed.
title: Andres Furger-Gunti: Die Ausgrabungen im Basler Münster I. Die spätkeltische und augusteische Zeit (1. Jahrhundert v. Chr.). Untersuchungen zur spätkeltisch-frührömischen Übergangszeit in Basel Band 1. Basler Beiträge zur Ur- und Frühgeschichte Band 6. Derendingen-Solothurn 1979.
Creators: name: Stork, Ingo
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Andres Furger-Gunti: Die Ausgrabungen im Basler Münster I. Die spätkeltische und augusteische Zeit (1. Jahrhundert v. Chr.). Untersuchungen zur spätkeltisch-frührömischen Übergangszeit in Basel Band 1. Basler Beiträge zur Ur- und Frühgeschichte Band 6. Habegger Verlag, Derendingen-Solothurn 1979. 313 Seiten, 67 Abbildungen, 43 Tafeln, 6 Beilagen. Preis DM 80,50.