cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Random dimer model in pseudo two-dimensional lattices
Creators: name: Naether, Uta
name: Mejía-Cortés, Cristian
name: Vicencio, Rodrigo A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this work, we study long-time wave transport in correlated and uncorrelated disordered 2D arrays. When a separation of dimensions is applied to the model, we find that the predicted 1D random dimer phenomenology also appears in so-called pseudo-2D arrays. Therefore, a threshold behavior is observed in terms of the effective size for eigenmodes, as well as in long-time dynam- ics. For this threshold behavior to be observed a minimum system size is required, what is very important when considering a possible experimental realization. For the long-time evolution, we find that for short-range correlated lattices a super-diffusive long-range transport is observed, while for completely uncorrelated disorder in 2D transport becomes sub-diffusive within the localization length and random binary pseudo-2D arrays show localization.
description: 5 pages, 3 figures, submitted for publication
Neutrinos as probes of Lorentz invariance
Creators: name: Diaz, Jorge S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Neutrinos can be used to search for deviations from exact Lorentz invariance. The worldwide experimental program in neutrino physics makes these particles a remarkable tool to search for a variety of signals that could reveal minute relativity violations. This paper reviews the generic experimental signatures of the breakdown of Lorentz symmetry in the neutrino sector.
description: 10 pages, 4 figures; Review article published in the special issue "Through Neutrino Eyes: The Search for New Physics" of Advances in High Energy Physics
IL FONDO COMUNE AZIONISTA
Creators: name: SANTONI, ARMANDO
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: ABSTRACT The mutual fund as a shareholder The main concept behind my dissertation is that the equity participation hold in account of mutual funds raises special issues, that should require the development of equally special solutions, possibly different from the legal rules laid down by the ordinary law of limited corporations. In fact, the Italian civil code of 1942, that includes company law, is focused on a regard of limited corporations as basically industrial enterprises, while UCITS (Undertakings for Collective Investments in Transferable Securities) are shareholders inspired by a strictly financial approach, and specifically by the portfolio theory. That means that UCITS are interested in the valuation of their entire portfolio, not of the single equity participation. From the point of view of the individual portfolio company, this could imply that in a specific corporate resolution the manager of the UCITS could have an interest in conflict with the one of itself. The solution of the peculiar problems posed by the equity participation hold in account of a third party are furthermore complicated by the difficult conceptual classification of mutual funds, risen in common law systems, in a civil law system, such as the Italian. This circumstance has required the review of the several theories developed by the Italian legal doctrine, and the acceptance of one of them in order to justify the further solution of each legal issue. Moreover, the examination of the current Italian and European legislation around mutual funds suggests a basic twofold approach of their consideration as shareholders. In fact, beside UCITS, the recent Alternative Investment Fund Managers Directive (AIFMD) allows them even to hold a controlling stake in a portfolio company. On these premises, in the third chapter I analyze concrete issues, where the solution may diverge depending on whether the mutual fund operates following the portfolio theory or holding a controlling stake. One of the main issues regards the exercise of voting rights in account of mutual UCITS funds, where the manager is obliged on a legal and contractual basis to pursue the best interest of his clients. This should imply that in possible situations of conflict of interests with the portfolio company the manager may sacrifice the best interest of this last. In the conclusive chapter I consider the possible issues laid down by the consideration of the mutual fund as a controlling shareholder, and in particular the implications of the asset stripping prohibition, introduced by the AIFMD in 2011. This rule forbids AIFs to put in place disproportionate distributions of dividends in order to protect the integrity of the portfolio company, which implies that the duty to act in the best interests of the AIF in this context is overruled by considerations of Integrated CSR.
THE EVALUATION OF REMOTE AUDITING ACTIVITIES WITHIN THE SCOPE OF FACTORS AFFECTING INDEPENDENT AUDIT QUALITY: A QUALITATIVE RESEARCH
Creators: name: ARZU MERIC
name: HALIME KARACA
Publisher: name: Zenodo
Year: 2024
Subjects: Audit, Independent Audit, Remote Audit, Audit Quality, Indepented Auditor.

description: Abstract

The use of information and communication technology (ICT) in auditing has increased over time. Developments in ICT have played an important role in the transition to the remote audit model. Auditing practices have experienced a digital transformation with a rapid transition towards remote auditing, which has been mandated as a result of social restrictions due to the pandemic in recent years. The aim of this study is to examine remote auditing and evaluate its impact on the quality of independent audits. Factors affecting audit quality are categorized as audited entity, independent audit firm, independent auditor, use of information technology, legal regulations, and institutions. The study, which used qualitative data methods, applied descriptive analysis. Research on the evaluation of remote auditing activities, within the framework of factors affecting independent audit quality, was conducted through interviews with eight independent auditors. The interviews revealed that to become a leader in remote auditing practices, it is necessary to establish a remote auditing culture. The Public Oversight Authority, which is authorised in the field of independent auditing, should take on its regulatory role regarding remote auditing practices. Additionally, remote auditing practices should be experienced through simulation training.
DISSECTING THE ROLE OF LSD1 IN THE RESPONSE OF ACUTE MYELOID LEUKEMIA CELLS TO RETINOIC ACID TREATMENT
Creators: name: RAVASIO, ROBERTO
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: The histone demethylase LSD1 is deregulated in several tumors, including leukemias, providing the rationale for the clinical use of LSD1 inhibitors. Treatment of AML cells with LSD1 inhibitors shows a highly variable pattern of response and only a minority of AML cells are sensitive to LSD1 inhibition as single treatment. However, a strong cooperation of LSD1 inhbition and the differentiation agent retinoic acid (RA) can be observed in most of the AML subtypes, even in those resistant to either drug alone. In acute promyelocytic leukemia (APL), pharmacological doses of RA induce differentiation of APL cells through degradation of the PML-RAR oncogene. APL cells are resistant to LSD1 inhibition or knock-out, but LSD1 inhibition sensitizes them to physiological doses of RA without altering the stability of PML-RAR, and extends survival of leukemic mice upon RA treatment. Non-enzymatic activities of LSD1 are essential to block differentiation of leukemic cells, while the combination of LSD1 inhibitors (or LSD1 knock-out) with low doses of RA releases a differentiation-associated gene expression program, not strictly dependent on changes in histone H3K4 methylation (known substrate of LSD1). An integrated proteomic/epigenomic/mutational analysis showed that LSD1 inhibitors alter the recruitment of LSD1-containing complexes to chromatin through inhibition of the interaction between LSD1 and GFI1, a relevant transcription factor in hematopoiesis. Same experiments performed in non-APL AML cells confirmed the critical role of LSD1-GFI1 interaction in RA sensitization, beside the APL context.
Heterogeneous anomalous diffusion in view of superstatistics
Creators: name: Itto, Yuichi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It is experimentally known that virus exhibits stochastic motion in cytoplasm of a living cell in the free form as well as the form being contained in the endosome and the exponent of anomalous diffusion of the virus fluctuates depending on localized areas of the cytoplasm. Here, a theory is developed for establishing a generalized fractional kinetics for the infection pathway of the virus in the cytoplasm in view of superstatistics, which offers a general framework for describing nonequilibrium complex systems with two largely separated time scales. In the present theory, the existence of a large time-scale separation in the infection pathway is explicitly taken into account. A comment is also made on scaling nature of the motion of the virus that is suggested by the theory.
description: 20 pages, no figures. Published version
Tora für Frauen, verwirrende Beziehungen und eine geflügelte Gottheit
Creators: name: Wacker, Marie-Theres
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 48 Nr. 4 (2012): Concilium: Internationale Zeitschrift für Theologie, Band 48, Heft 4
QANDLI DIABET 2-TIPLI BEMORLARDA DIABETIK ENSEFALOPATIYANING O'ZIGA XOS XUSUSIYATLARI
Creators: name: Shagazatova, B.X.
name: Kenjaeva, Y.R.
Publisher: name: Zenodo
Year: 2023

description: Tekshiruvga  qandli diabet 2-tipli 61 ta bemor olindi, o'rtacha yoshi-57,17±1,27: kasallik davomiyligi 8,12±0,59 yil. Ularni 2 guruhga ajratdik: 1 guruhni QD 2-tip diabetik ensefalopatiya bilan asoratlangan  40 nafar bemor  (65%), 2 guruh QD 2 tip diabetik ensefalopatiya bilan asoratlanmagan 21nafar (35%)  bemorlardan tashkil topgan  nazorat guruhiga ajratildi.   Jins boy'icha erkaklar 22(36%); ayollar 39(63%) ni tashkil kildi.
Theologie aus der Perspektive der Reziprozität und Komplementarität von Mann und Frau
Creators: name: Ferraro, Benedito
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 48 Nr. 4 (2012): Concilium: Internationale Zeitschrift für Theologie, Band 48, Heft 4
On the partial sums of Vilenkin-Fourier series
Creators: name: Tephnadze, George
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C10

description: The main aim of this paper is to investigate weighted maximal operators of partial sums of Vilenkin-Fourier series. We also use our results to prove approximation and strong convergence theorems on the martingale Hardy spaces $H_{p},$ when $0
description: Vilenkin system, partial sums, martingale, Hardy space, modulus of continuity, convergence. arXiv admin note: text overlap with arXiv:1410.6102, arXiv:1410.7075, arXiv:1410.7204
EXPLORING THE PHYSICS OF POLYMERS AND LIVING POLYMERS THROUGH DNA MODELS
Creators: name: ROSSI, MARINA LAURA
Publisher: name: Universit� degli Studi di Milano
Year: 2016

description: In the last twenty years DNA has become a topic of research in material science and technology. It was in fact realized that the code depending pairing of DNA polymers could be exploited to program their self assembly into complex multi-strand structures. This field of research, which is generally named DNA structure of nanotechnology, has been constantly growing. While at its origin the products of DNA assembly where simple geometrical shapes the latest achievements involve quite sophisticated programmable structures, including mobile nano-spiders, fueled by DNA. The general philosophy underlying this effort is to try to master DNA properties to obtain complex nano-structures by spontaneous self-assembly. The aim of this field is, in principle, technological. In parallel to this enormous development of DNA nanotechnology, a distinct branch of material science research has emerged in which the properties of DNA are exploited, namely the use of DNA structures as a molecular model capable of setting the stage to explore relevant processes of condensed matter physics. Among these the use of DNA to explore the physics behind the formation of LC phases, and the use of DNA aggregates as a model of low valence molecules. The class of problems considered in this thesis involves both polymer physics and liquid crystal formation. The latter is also intimately related to polymerization in that the formation of LC phases in short DNA oligomers is mediated by their aggregation into living polymers. Indeed, polymerization and LC formation, besides sharing a basic uniaxial symmetry, might be even more intimately connected as the formation of LC ordering might even be the cradle for the development of long polymeric chains obtained by the chemical stabilization of living polymers.
Pesquisa de informação científica e técnica
Creators: name: Lopes, Mafalda
Publisher: name: Zenodo
Year: 2023
Subjects: Pesquisa bibliográfica

description: Pesquisa bibliográfica de informação científica e técnica, algumas notas e sugestões.
Objetivos: 

Perceber o que é a produção e divulgação cientifica
Compreender o funcionamento de motores de busca e bases de dados
Fazer pesquisa bibliográfica
Weak magnetic fields in central stars of planetary nebulae?
Creators: name: Steffen, M.
name: Hubrig, S.
name: Todt, H.
name: Schöller, M.
name: Hamann, W. -R.
name: Sandin, C.
name: Schönberner, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is not yet clear whether magnetic fields play an essential role in shaping planetary nebulae (PNe), or whether stellar rotation alone and/or a close binary companion can account for the variety of the observed nebular morphologies. In a quest for empirical evidence verifying or disproving the role of magnetic fields in shaping PNe, we follow up on previous attempts to measure the magnetic field in a representative sample of PN central stars. We obtained low-resolution polarimetric spectra with FORS 2 at VLT for a sample of twelve bright central stars of PNe with different morphology, including two round nebulae, seven elliptical nebulae, and three bipolar nebulae. Two targets are Wolf-Rayet type central stars. For the majority of the observed central stars, we do not find any significant evidence for the existence of surface magnetic fields. However, our measurements may indicate the presence of weak mean longitudinal magnetic fields of the order of 100 Gauss in the central star of the young elliptical planetary nebula IC 418, as well as in the Wolf-Rayet type central star of the bipolar nebula Hen2-113 and the weak emission line central star of the elliptical nebula Hen2-131. A clear detection of a 250 G mean longitudinal field is achieved for the A-type companion of the central star of NGC 1514. Some of the central stars show a moderate night-to-night spectrum variability, which may be the signature of a variable stellar wind and/or rotational modulation due to magnetic features. We conclude that strong magnetic fields of the order of kG are not widespread among PNe central stars. Nevertheless, simple estimates based on a theoretical model of magnetized wind bubbles suggest that even weak magnetic fields below the current detection limit of the order of 100 G may well be sufficient to contribute to the shaping of PNe throughout their evolution.
description: 16 pages, 11 figures, 3 tables, accepted for publication in A&A; References updated, minor corrections
Strong convergence theorems of Walsh-Fejér means
Creators: name: Tephnadze, George
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C10

description: As main result we prove that Fejér means of Walsh-Fourier series are uniformly bounded operators from $\ H_{p}$ to $H_{p}$ $\left( 0
description: Walsh system, Fej\'er means, martingale Hardy space, strong convergence, Acta Mathematica Hungarica, 2014
Gender und Theologie
Creators: name: Cahill, Lisa Sowle
name: Irarrázaval, Diego
name: Wainwright, Elaine Mary
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 48 Nr. 4 (2012): Concilium: Internationale Zeitschrift für Theologie, Band 48, Heft 4
Spectral data of AMTAC-19
Creators: name: Sobral, Marianna Vieira
name: Valgrícia Matias De Sousa
name: De Moura, Ricardo Olímpio
Publisher: name: Zenodo
Year: 2022
Subjects: Spectral data, NMR, IR, Mass spectrometry

description: Spectral data of AMTAC-19 (NMR1H, NMR13C, IR, and mass spectrometry).
A Sub Microscopic Description of the Diffraction Phenomenon
Creators: name: Krasnoholovets, Volodymyr
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is shown that a detailed sub microscopic consideration denies the wave-particle duality for both material particles and field particles, such as photons. In the case of particles, their ψ-wave function is interpreted as the particle's field of inertia and hence this field is characterised by its own field carriers, inertons. Inertons and photons are considered as quasi-particles, excitations of the real space constructed in the form of a tessel-lattice. The diffraction of photons is explained as the deflection of photons from their path owing to transverse flows of inertons, which appear in the substance under consideration at the decay of non-equilibrium phonons produced by transient photons.
description: 15 p., 6 figs
A Conceptual Framework for Classifying Currencies
Creators: name: Larue, Louis
Publisher: name: International Journal of Community Currency Research (IJCCR)
Year: 2020
Subjects: money
alternative currencies
typologies
classification

description: An impressive variety of new forms of money has aroused in recentdecades from various groups of people and various kinds ofinstitutions. These currencies are at the heart of intense debates,which raise important, but often neglected, normative issues. Thediversity of their goals, uses and characteristics is so large that itmakes some preliminary distinctions necessary. This paper aims atproviding a proper background for the discussion of the possiblemerits and drawbacks of different kinds of currencies. It proposes aclassification that demarcates currencies according to how they relateto several crucial normative issues. Its aim is to show, for everytype of currency, and as unambiguously as possible, to which side ofthese controversies it lies.
Motor proteins traffic regulation by supply-demand balance of resources
Creators: name: Ciandrini, Luca
name: Neri, I.
name: Walter, Jean-Charles
name: Dauloudet, O.
name: Parmeggiani, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: In cells and in vitro assays the number of motor proteins involved in biological transport processes is far from being unlimited. The cytoskeletal binding sites are in contact with the same finite reservoir of motors (either the cytosol or the flow chamber) and hence compete for recruiting the available motors, potentially depleting the reservoir and affecting cytoskeletal transport. In this work we provide a theoretical framework to study, analytically and numerically, how motor density profiles and crowding along cytoskeletal filaments depend on the competition of motors for their binding sites. We propose two models in which finite processive motor proteins actively advance along cytoskeletal filaments and are continuously exchanged with the motor pool. We first look at homogeneous reservoirs and then examine the effects of free motor diffusion in the surrounding medium. We consider as a reference situation recent in vitro experimental setups of kinesin-8 motors binding and moving along microtubule filaments in a flow chamber. We investigate how the crowding of linear motor proteins moving on a filament can be regulated by the balance between supply (concentration of motor proteins in the flow chamber) and demand (total number of polymerised tubulin heterodimers). We present analytical results for the density profiles of bound motors, the reservoir depletion, and propose novel phase diagrams that present the formation of jams of motor proteins on the filament as a function of two tuneable experimental parameters: the motor protein concentration and the concentration of tubulins polymerized into cytoskeletal filaments. Extensive numerical simulations corroborate the analytical results for parameters in the experimental range and also address the effects of diffusion of motor proteins in the reservoir.
description: 31 pages, 10 figures
Nucleation at the contact line observed on nano-textured surfaces
Creators: name: Gurganus, C. W.
name: Charnawskas, J. C.
name: Kostinski, A. B.
name: Shaw, R. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: It has been conjectured that roughness plays a role in surface nucleation, the tendency for freezing to begin preferentially at the liquid-gas interface. Using high speed imaging, we sought evidence for freezing at the contact line on catalyst substrates with imposed characteristic length scales (texture). Length scales consistent with the critical nucleus size and with $δ\sim τ/ σ$, where $τ$ is a relevant line tension and $σ$ is the surface tension, range from nanometers to micron. It is found that nano-scale texture causes a shift in the nucleation of ice in supercooled water to the three-phase contact line, while micro-scale texture does not.
description: 5 pages, 3 figures; to be published in Phys. Rev. Lett
Colliding $p$-branes in the dynamical intersecting brane system
Creators: name: Uzawa, Kunihito
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss the dynamics of intersecting $p$-branes with cosmological constants in the higher-dimensional gravity theories. For the delocalized brane case, these solutions describe an asymptotically de Sitter or power-law expanding universe, while for the partially localized intersecting branes, they describe homogeneous and isotropic universes at each position of the overall transverse space. We then apply these time-dependent branes to the study on the collision of two 0-branes and show that the 0$-$8-brane system or the smeared $0-p_I$-brane system can provide an example of colliding branes if they have the same brane charges and only one overall transverse space. Finally, we argue some applications of the solutions in supergravity models.
description: 81 pages, 12 figures
Striped critical spin liquid in a spin-orbital entangled RVB state in a projected entangled-pair state representation
Creators: name: Czarnik, Piotr
name: Dziarmaga, Jacek
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a spin-orbital entangled (SOE) resonating valence bond (RVB) state on a square lattice of spins-$\frac12$ and orbitals represented by pseudospins-$\frac12$. Like the standard RVB state, it is a superposition of nearest-neighbor hard-core coverings of the lattice by spin singlets, but adjacent singlets are favoured to have perpendicular orientations and, more importantly, an orientation of each singlet is entangled with orbitals' state on its two lattice sites. The SOE-RVB state can be represented by a projected entangled pair state (PEPS) with a bond dimension $D=4$. This representation helps to reveal that the state is a superposition of striped coverings conserving a topological quantum number. The stripes are a critical quantum spin liquid. We propose a spin-orbital Hamiltonian supporting a SOE-RVB ground state.
description: 8 pages, 10 figures
title: Νευρωνικά δίκτυα εμπνευσμένα από τη φυσική για σύνθετα υλικά
title: Physics informed neural networks (PINNs) for composite materials
Creators: name: Καραμητσος Μαριος
Publisher: name: Technical University of Crete
Year: 2024

description: Στόχος της παρούσας εργασίας είναι η επίλυση διαφορικών εξισώσεων για την περιγραφή της συμπεριφοράς μοντέλων επίπεδης ελαστικότητας με χρήση μεθόδων υπολογιστικής νοημοσύνης συνδυάζοντας κατά αυτόν τον τρόπο το επιστημονικό πεδίο της υπολογιστικής μηχανικής με τις τεχνικές μηχανικής μάθησης. Η μέθοδος Physics Informed Neural Networks (PINNs) χρησιμοποιείται για την εύρεση των πεδίων μετατοπίσεων, παραμορφώσεων και τάσεων σε βασικά στοιχεία κατασκευών όπως η ράβδος και ο τετράγωνος δίσκος μέσω εξειδικευμένων πακέτων προγραμματισμού. Στην εργασία γίνεται αναφορά στην θεωρία ελαστικότητας και στη μοντελοποίηση των βασικών εξισώσεων που περιγράφουν τέτοια προβλήματα. Ορίζεται το θεωρητικό υπόβαθρο των PINN και αποσαφηνίζεται ο τρόπος λειτουργίας των κυριότερων συστατικών της μεθόδου όπως ο αλγόριθμος ανάστροφης διάδοσης σφάλματος ενώ ιδιαίτερη αναφορά γίνεται στην τεχνική της αυτόματης παραγώγισης. Στη συνέχεια υλοποιείται προγραμματιστικά η εφαρμογή και διερευνάται η πιστότητα της μέσα από παραδείγματα μηχανικής.
Progress on accurate measurement of the Planck constant: watt balance and counting atoms
Creators: name: Li, Shisong
name: Zhang, Zhonghua
name: Zhao, Wei
name: Li, Zhengkun
name: Huang, Songling
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The Planck constant $h$ is one of the most significant constants in quantum physics. Recently, the precision measurement of the numeral value of $h$ has been a hot issue due to its important role in establishment for both a new SI and a revised fundamental physical constant system. Up to date, two approaches, the watt balance and counting atoms, have been employed to determine the Planck constant at a level of several parts in $10^8$. In this paper, the principle and progress on precision measurement of the Planck constant using watt balance and counting atoms at national metrology institutes are reviewed. Further improvements for the Planck constant determination and possible developments of a revised physical constant system in future are discussed.
description: 24 pages, 15 figures, accepted for publication in Chinese Physics B
Diffusion limited evaporation of a binary liquid film
Creators: name: Chatwell, René Spencer
name: Heinen, Matthias
name: Vrabec, Jadran
Publisher: name: Technische Universität Berlin
Year: 2018
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: evaporative mass transfer
subject: analytical modeling
subject: large scale molecular dynamics simulations

description: An analytical solution of a model fluid’s time behavior, known as the Stefan problem, is presented. A scenario is investigated in which a planar two-component liquid film is continuously evaporating into a thermodynamically non-ideal vapor phase. Evaporation is initiated and maintained by a spatial chemical potential gradient, while its rate is limited by the components’ diffusion fluxes across the vapor-liquid interface. Local thermodynamic equilibrium is found to be present throughout the process. In contrast to the classical approach relying on equations of state, all required non-idealities are formulated in relation to the Gibbs energy and are determined by molecular simulations. Initially, the liquid is an equimolar mixture of two components of different volatility, whereas the adjacent vapor phase is dominated by a dense inert gas. To validate the analytical model and verify all exploited assumptions, the results are contrasted to large scale molecular dynamics simulations.
Theory of skyrmion states in liquid crystals: axisymmetric cholesteric bubbles (spherulites)
Creators: name: Leonov, A. O.
name: Dragunov, I. E.
name: Rößler, U. K.
name: Bogdanov, A. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Within the Oseen-Frank theory we derive numerically exact solutions for axisymmetric localized states in chiral liquid crystal layers with homeotropic anchoring. These solutions describe recently observed two-dimensional skyrmions in confinement-frustrated chiral nematics [P. J. Acherman et al. Phys. Rev. E 90, 012505 (2014)]. We stress that these solitonic states arise due to a fundamental stabilization mechanism responsible for the formation of skyrmions in cubic helimagnets and other noncentrosymmetric condensed-matter systems.
description: 6 pages, 5 figures
Bulk viscosity of liquid noble gases
Creators: name: Chatwell, René Spencer
name: Vrabec, Jadran
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 530 Physik
subject: 540 Chemie und zugeordnete Wissenschaften
subject: noble gas
subject: viscosity
subject: molecular dynamics
subject: liquid state
subject: equation of state

description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Chem. Phys. 152, 094503 (2020) and may be found at https://doi.org/10.1063/1.5142364.
description: An equation of state for the bulk viscosity of liquid noble gases is proposed. On the basis of dedicated equilibrium molecular dynamics simulations, a multi-mode relaxation ansatz is used to obtain precise bulk viscosity data over a wide range of liquid states. From this dataset, the equation of state emerges as a two-parametric power function with both parameters showing a conspicuous saturation behavior over temperature. After passing a temperature threshold, the bulk viscosity is found to vary significantly over density, a behavior that resembles the frequency response of a one pole low-pass filter. The proposed equation of state is in good agreement with available experimental sound attenuation data.
e-shape pilot S5-P6 - EO based phytoplankton biomass for WFD reporting
Creators: name: Hommersom, Annelies
Publisher: name: GEO Knowledge Hub
Year: 2022
Subjects: Water quality
Ecosytem
Biodiversity
Chlorophyll
e-shape
Instituto Português do Mar e da Atmosfera (IPMA)
European Commission
H2020
Group on Earth Observation
GEO
EuroGEO
Water Resources Management Showcase
EU Water Framework Directive

description: A good water quality is the base of a healthy ecosystem with rich biodiversity. Aquatic ecosystems also provide essential services for drinking water, irrigation, recreation, aquaculture and fisheries. The EU Water Framework Directive recognizes this and requires member states to monitor and, if necessary, improve water quality. Although the spatial component is key to gain insight in the processes in water, regular sample-based monitoring only provides point data.The use of earth observation (EO) data for contributing to this purpose was promoted by the H2020 EOMORES and CoastObs white paper 'Satellite-assisted monitoring of water quality to support the implementation of the Water Framework Directive'. To generate further recognition and support for EO based products in the scope of the WFD at political, administrative and management levels, WFD ecological status maps of phytoplankton biomass based on EO data are being developed, thereby adjusting to local water types and WFD threshold differences. WFD ecological status products of phytoplankton biomass are made for lake Saadjärv and lake Lauwersmeer, with a potential to roll out the approach. https://www.waterinsight.nl/projects/e-shapeAcknowledgmentThe e-shape project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement 820852.
FrameNet Resource Grammar Library for GF
Creators: name: Gruzitis, Normunds
name: Paikens, Peteris
name: Barzdins, Guntis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In this paper we present an ongoing research investigating the possibility and potential of integrating frame semantics, particularly FrameNet, in the Grammatical Framework (GF) application grammar development. An important component of GF is its Resource Grammar Library (RGL) that encapsulates the low-level linguistic knowledge about morphology and syntax of currently more than 20 languages facilitating rapid development of multilingual applications. In the ideal case, porting a GF application grammar to a new language would only require introducing the domain lexicon - translation equivalents that are interlinked via common abstract terms. While it is possible for a highly restricted CNL, developing and porting a less restricted CNL requires above average linguistic knowledge about the particular language, and above average GF experience. Specifying a lexicon is mostly straightforward in the case of nouns (incl. multi-word units), however, verbs are the most complex category (in terms of both inflectional paradigms and argument structure), and adding them to a GF application grammar is not a straightforward task. In this paper we are focusing on verbs, investigating the possibility of creating a multilingual FrameNet-based GF library. We propose an extension to the current RGL, allowing GF application developers to define clauses on the semantic level, thus leaving the language-specific syntactic mapping to this extension. We demonstrate our approach by reengineering the MOLTO Phrasebook application grammar.
title: Synthese und Struktur von 2,7-Di-tert-butyldicyclopenta[a,e]cycloocten
Creators: name: Hafner, Klaus
name: Thiele, Georg F.
name: Mink, Carsten
Publisher: name: Wiley
Year: 2023

description: Ein vollständig ebenes, delokalisiertes 14π-Elektronensystem, das keine cyclisch konjugierten Teilstrukturen enthält, charakterisiert die Titelverbindung (2). Eine ergiebige Synthese des 1,2-Bis(tert-butylcyclopentadienyl)-ethans (1) ermöglichte in nur drei Stufen den Aufbau des neuartigen nichtbenzoiden aromatischen Kohlenwasserstoffs (2), der auch einen der wenigen planaren Achtringe enthält.
Diffusion of the carbon dioxide–ethanol mixture in the extended critical region
Creators: name: Chatwell, René Spencer
name: Guevara-Carrion, Gabriela
name: Gaponenko, Yuri
name: Shevtsova, Valentina
name: Vrabec, Jadran
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: carbon dioxide–ethanol mixture
subject: thermodynamics
subject: Taylor dispersion measurements

description: The effect of traces of ethanol in supercritical carbon dioxide on the mixture's thermodynamic properties is studied by molecular simulations and Taylor dispersion measurements. This mixture is investigated along the isobar p = 10 MPa in the temperature range between T = 304 and 343 K. Along this path, the mixture undergoes two transitions: First, the Widom line is crossed, marking the transition from liquid-like to gas-like conditions. A second transition occurs from the supercritical gas-like domain to a subcritical gas. The Widom line crossover entails inflection points for most of the studied properties, i.e. density, enthalpy, shear viscosity, Maxwell–Stefan and intradiffusion coefficients. On the other hand, the transition between the super- and subcritical regions is found to be generally smooth, an observation that is qualitatively confirmed by experimental Taylor dispersion measurements. Dedicated atomistic simulations show the presence of microheterogeneities due to ethanol self-association along the investigated path, which lead to the mixture's anomalous behavior in its extended critical region.
The WSRT HALOGAS Survey
Creators: name: Heald, George
name: Team, the HALOGAS
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an overview of the HALOGAS (Hydrogen Accretion in LOcal GAlaxieS) Survey, which is the deepest systematic investigation of cold gas accretion in nearby spiral galaxies to date. Using the deep HI data that form the core of the survey, we are able to detect neutral hydrogen down to a typical column density limit of about 10$^{19}$ cm$^{-2}$ and thereby characterize the low surface brightness extra-planar and anomalous-velocity neutral gas in nearby galaxies with excellent spatial and velocity resolution. Through comparison with sophisticated kinematic modeling, our 3D HALOGAS data also allow us to investigate the disk structure and dynamics in unprecedented detail for a sample of this size. Key scientific results from HALOGAS include new insight into the connection between the star formation properties of galaxies and their extended gaseous media, while the developing HALOGAS catalogue of cold gas clouds and streams provides important insight into the accretion history of nearby spirals. We conclude by motivating some of the unresolved questions to be addressed using forthcoming 3D surveys with the modern generation of radio telescopes.
description: 4 pages, 1 figure. To be published in the Proceedings of IAU Symposium 309
Pilzliche Schäden an Bergahorn; Waldschutzinfo Nr. 06 / 2012
Creators: name: Langer, Gitta Jutta
name: Bressem, Ulrich
name: Habermann, Michael
Publisher: name: Zenodo
Year: 2023
Subjects: Acer pseudoplatanus; Anisandrus dispar; Bergahorn

description: Seit 2009 werden in Nordwestdeutschland zuweilen Schäden an Stämmen und Ästen von Bergahorn beobachtet,
 die durch pilzliche Schaderreger (überwiegend Fusarium-Arten) ausgelöst werden. Oft ist ein Zusammenhang
 zwischen dem Schadauftreten und dem Befall mit dem Ungleichen Holzbohrer (Anisandrus dispar) zu erkennen.
 Anisandrus dispar besiedelt bevorzugt Laubhölzer wie Ahorn, Eiche, Esche, Buche und Obstgehölze,
 insbesondere geschwächte oder gefällte Bäume. Der Käfer kann auch gesunde Pflanzen angreifen und bei
 starkem Befall zum Absterben führen. Neben den für die Ernährung notwendigen Ambrosiapilzen können mit A.
 dispar auch pathogene Pilze (z. B. Fusarium) assoziiert sein.
 Von den nachfolgend behandelten Fusarium-Erkrankungen sind andere pilzliche Schäden wie z. B. die
 Verticillium-Welke (Verticillium dahliae oder V. albo-atrum), die Rußrindenerkrankung (Cryptostroma corticale)
 oder Schäden durch den pilzähnlichen Organismus Phytophthora abzugrenzen.
Evaluation of Constant Potential Method in Simulating Electric Double-Layer Capacitors
Creators: name: Wang, Zhenxing
name: Yang, Yang
name: Olmsted, David L.
name: Asta, Mark
name: Laird, Brian B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A major challenge in the molecular simulation of electric double layer capacitors (EDLCs) is the choice of an appropriate model for the electrode. Typically, in such simulations the electrode surface is modeled using a uniform fixed charge on each of the electrode atoms, which ignores the electrode response to local charge fluctuations induced by charge fluctuations in the electrolyte. In this work, we evaluate and compare this Fixed Charge Method (FCM) with the more realistic Constant Potential Method (CPM), [Reed, et al., J. Chem. Phys., 126, 084704 (2007)], in which the electrode charges fluctuate in order to maintain constant electric potential in each electrode. For this comparison, we utilize a simplified LiClO$_4$-acetonitrile/graphite EDLC. At low potential difference ($ΔΨ\le 2V$), the two methods yield essentially identical results for ion and solvent density profiles; however, significant differences appear at higher $ΔΨ$. At $ΔΨ\ge 4V$, the CPM ion density profiles show significant enhancement (over FCM) of "partially electrode solvated" Li$^+$ ions very close to the electrode surface. The ability of the CPM electrode to respond to local charge fluctuations in the electrolyte is seen to significantly lower the energy (and barrier) for the approach of Li$^+$ ions to the electrode surface.
description: Corrected typos
Conflict between dynamical and evolutionary stability in simple ecosystems
Creators: name: Mellard, Jarad P.
name: Ballantyne, Ford
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Here, we address the essential question of whether, in the context of evolving populations, ecosystems attain properties that enable persistence of the ecosystem itself. We use a simple ecosystem model describing resource, producer, and consumer dynamics to analyze how evolution affects dynamical stability properties of the ecosystem. In particular, we compare resilience of the entire system after allowing the producer and consumer populations to evolve to their evolutionarily stable strategy (ESS), to the maximum attainable resilience. We find a substantial reduction in ecosystem resilience when producers and consumers are allowed to evolve compared to the maximal attainable resilience. This study illustrates the inherent difference and possible conflict between maximizing individual-level fitness and maximizing resilience of entire ecosystems.
U.S. Agricultural Export Shares by Region and State, Fiscal Year 1968
Creators: name: Rahe, Dewain H.
name: Lemon, Isaac E.
name: Rahe, Dewain H.
name: Lemon, Isaac E.
Publisher: name: Unknown
Year: 1968
Subjects: Agricultural and Food Policy
International Relations/Trade
Research Methods/ Statistical Methods

description: Excerpts from the report: The U.S. farmer has an important stake in the foreign market. In recent years about one-sixth of his income has been from the sale of agricultural products in foreign markets. In 1967/68 (year ending June 30), over two-thirds of U.S. rice output, over half of the wheat and cotton output, about 40 percent of hides and skins, and tallow, and around one-fourth of the farm sales of tobacco, grain sorghums, and corn were exported. The export market required the output of 71 million acres of U.S. cropland -- one-fourth of the total harvested in the United States in 1967. It is extremely difficult to separate and report agricultural exports for the regions and the States. However, an indication of the importance of the foreign markets for each State and region can be derived. In this article, the export shares for these areas were estimated mainly on the basis of the State's contribution to the Nations 's output of agricultural commodities as shown by production or sales data. Once the export shares were determined, they were further refined and adjusted in some cases for certain commodities to reflect the actual shipment by commodity, grade, type, and export destination based on the information obtained from commodity specialists, trade groups, transportation agencies, and exporters.
description: Reprinted from Foreign Agricultural Trade of the United States November 1968
Maintenance and re-activation of antigen-specific CD8+ and CD4+ memory T lymphocytes in the bone marrow
Creators: name: Siracusa, Francesco
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Knochenmark
subject: Antigen-spezifische CD8+ T-Gedächtniszellen
subject: Antigen-spezifische CD4+ T-Gedächtniszellen
subject: homöostatische Proliferation
subject: FTY720
subject: Bone marrow
subject: Homeostatic proliferation
subject: Antigen-specific CD8+ memory T cells
subject: Antigen-specific CD4+ memory T cells
subject: 570 Biowissenschaften; Biologie
subject: WF 9895

description: Das Knochenmark (BM) beherbergt wesentliche Komponenten des adaptiven Immunsystems, die einen langfristigen Schutz gegen wiederkehrende Pathogene vermitteln können, sodass es sich als Reservoir für ein immunologisches Gedächtnis qualifiziert. Neben langlebiger Antikörper-produzierender Plasmazellen bleiben auch Antigen (Ag)-spezifische CD8+ und CD4+ T-Gedächtniszellen dauerhaft im Knochenmark erhalten, auch wenn sie in den sekundären lymphoiden Organen (SLOs) und im Blut abwesend sind. Es wird angenommen, dass diese T-Gedächtniszellen bei erneutem Kontakt mit den gleichen systemischen Pathogenen schnell reagieren können. Allerdings sind die biologischen Mechanismen für ihre langfristige Aufrechterhaltung immer noch umstritten und demnach ungeklärt. Unklar ist auch, wie die T-Gedächtniszellen des Knochenmarks bei erneuter Konfrontation mit demselben Antigen reagieren. Hier wird dieser Frage begegnet, indem durch klassiche Immunisierung mit definieren Antigenen eine stabile Population Ag-spezifischer CD8+ und CD4+ T-Gedächtniszellen im Knochenmark erzeugt wird.
description: The bone marrow (BM) harbors critical components of the adaptive immune system being able to provide long-lasting protection against previously encountered pathogens, thus qualifying as a reservoir of immunological memory. In addition to long-lived antibody producing plasma cells, antigen (Ag)-specific CD8+ and CD4+ memory T lymphocytes are maintained long-term in the BM even when they are absent from secondary lymphoid organs (SLOs) and blood. Those memory T cells are thought to respond fast upon re-encounter of systemic pathogens. However, the biological mechanisms behind their long-term maintenance in the BM are still a matter of debate and thus remain unclear. Similarly, it is also unclear how the memory T cells of the BM react to antigenic re-challenge. Here we address these issues by generating a stable pool of Ag-specific CD8+ and CD4+ memory T lymphocytes in the BM by classical immunizations with defined antigens.
title: Mulheres do Brasil: artes e artistas
Creators: name: Almeida Orlando Magnani, Maria Cláudia
name: Santos Ferreira, Maria de Lourdes
Publisher: name: EnredARS, RomaTrE-Press
Year: 2023

description:

Il lavoro nel campo della storia dell'arte è stato ampiamente definito da un referenziale europeo. Allo stesso modo, la prospettiva di genere pur avendo un'attenzione crescente è ancora insufficiente nelle recenti ricerche in quel campo. La ricerca femminista nella storia dell'arte ha cercato di rivalutare la produzione  artistica delle donne  in questa realtà di notevoli trasformazioni e molteplicità culturali e riscrivendo storie rese invisibili  se non cancellate dalla tradizione canonica. L'invisibilità di queste manifestazioni artistiche costituisce infatti  una lacuna che fortemente marca e segna l'esclusione delle donne, soprattutto di quelle che non si adattano allo stereotipo scelto "naturalmente" dalla loro proiezione sociale, rappresentato solo  dal modello eurocentrico:  cioè essere bianchi, appartenere a classi economiche privilegiate e (ri)produre il lavoro artistico consacrato dai grandi nomi della cultura europea. Cercando di contribuire alla riduzione di questo divario, questo volume è dedicato a studi che problematizzano questa rassegna di universalità, contribuendo alla costruzione di nuove storie delle arti che si concentrano sulle donne  protagoniste del fare artistico sia come artiste. Lo scopo della proposta che ha dato origine a questo lavoro è stato quello di focalizzare le più diverse espressioni artistiche delle/sulle donne, soprattutto brasiliane, ma non solo, di cui storicamente è stato  individuato il lavoro artistico ma nello stesso tempo escluse , sulla base  di  discriminazioni basate sul genere, sulla razza, sul credo o sull’etnia.
Der "Kirche der Armen" war auf dem Zweiten Vatikanischen Konzil kein Erfolg beschieden
Creators: name: Sobrino, Jon
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 48 Nr. 3 (2012): Concilium: Internationale Zeitschrift für Theologie, Band 48, Heft 3