cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kinetic Formulation of the Kohn-Sham Equations for ab initio Electronic Structure Calculations
Creators: name: Mendoza, M.
name: Succi, S.
name: Herrmann, H. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We introduce a new approach to density functional theory based on kinetic theory, showing that the Kohn-Sham equations can be derived as a macroscopic limit of a suitable Boltzmann kinetic equation in the limit of small mean free path versus the typical scale of density gradients (Chapman-Enskog expansion). To derive the approach, we first write the Schrödinger equation as a special case of a Boltzmann equation for a gas of quasi-particles, with the potential playing the role of an external source that generates and destroys particles, so as to drive the system towards the ground state. The ions are treated as classical particles, using the Born-Oppenheimer dynamics, or by imposing concurrent evolution with the electronic orbitals. In order to provide quantitative support to our approach, we implement a discrete (lattice) model and compute, the exchange and correlation energies of simple atoms, and the geometrical configuration of the methane molecule. Excellent agreement with values in the literature is found.
description: 8 pages, 3 figures, 3 tables
Simulating strange attraction of acellular slime mould Physarum polycephaum to herbal tablets
Creators: name: Adamatzky, Andrew
Publisher: name: arXiv
Year: 2012
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Plasmodium of acellular slime mould Physarum polycephalum exhibits traits of wave-like behaviour. The plasmodium's behaviour can be finely tuned in laboratory experiments by using herbal tablets. A single tablet acts as a fixed attractor: plasmodium propagates towards the tablet, envelops the tablet with its body and stays around the tablet for several days. Being presented with several tablets the plasmodium executes limit cycle like motions. The plasmodium performs sophisticated routines of movement around tablets: rotation, splitting, and annihilation. We use to two-variable Oregonator model to simulate the plasmodium behaviour in presence of the herbal tablets. Numerical experiments confirm that using long-distance attracting and short-distance repelling fields we can organise arbitrary movement of plasmodia.
description: arXiv admin note: text overlap with arXiv:1106.0305
Competition of Plants and Microorganisms for Added Nitrogen in Different Fertilizer Forms in a Semi-Arid Climate
Creators: name: Koch, Markus
name: Akshalov, Kanat
name: Carstens, Jannis Florian
name: Shibistova, Olga
name: Stange, Claus Florian
name: Thiedau, Simon
name: Kassymova, Alfiya
name: Sauheitl, Leopold
name: Meinel, Tobias
name: Guggenberger, Georg
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: liquid fertilizer
subject: granular fertilizer
subject: mini-till
subject: no-till
subject: ammonium nitrate
subject: 15N
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::600 | Technik::640 | Hauswirtschaft und Familienleben

description: In nitrogen (N) -limited agricultural systems, a high microbial immobilization of applied fertilizer-N can limit its availability to plants. However, there is scarce information on the effect of the form of fertilizer used on the plant–microorganism competition in clay-rich soils under a severe semi-arid climate. In a field study, we investigated the wheat–microorganism competition after the direct application of NH415NO3 closely to seeds in arable fields in North Kazakhstan, documenting the effect of the use of liquid versus granular fertilizer and mini-tillage versus no-tillage. Our results barely showed any fertilizer-N translocation in the soil. Plants outcompete microorganisms for fertilizer-N during the vegetation period. Microbial-to-plant 15N ratios revealed a predominant fertilizer-15N uptake by plants. The strong competition for N was mainly related to the placement of the fertilizer close to the seeds. Moreover, the long time interval between fertilization and sampling enhanced the competition for N, meaning that previously microbially immobilized N became available to plants through the death of microorganisms and their subsequent mineralization. The fertilizer distribution between microorganisms and plants did depend on the form of fertilizer used, owing to the good solubility of granular fertilizer. The smaller fertilizer-N uptake under the no-tilling condition was probably due to the more intense soil compaction, which caused a reduction in plant growth. The application of fertilizer close to the seeds and the small fertilizer translocation during the vegetation period ultimately resulted in a high level of plant N being derived from the fertilizer.
Task-Adaptive Tokenization: Enhancing Long-Form Text Generation Efficacy in Mental Health and Beyond
Creators: name: Liu, Siyang
name: Deng, Naihao
name: Sabour, Sahand
name: Jia, Yilin
name: Huang, Minlie
name: Mihalcea, Rada
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.7
subject: 68

description: We propose task-adaptive tokenization as a way to adapt the generation pipeline to the specifics of a downstream task and enhance long-form generation in mental health. Inspired by insights from cognitive science, our task-adaptive tokenizer samples variable segmentations from multiple outcomes, with sampling probabilities optimized based on task-specific data. We introduce a strategy for building a specialized vocabulary and introduce a vocabulary merging protocol that allows for the integration of task-specific tokens into the pre-trained model's tokenization step. Through extensive experiments on psychological question-answering tasks in both Chinese and English, we find that our task-adaptive tokenization approach brings a significant improvement in generation performance while using up to 60% fewer tokens. Preliminary experiments point to promising results when using our tokenization approach with very large language models.
description: Accepted at the main conference of The 2023 Conference on Empirical Methods in Natural Language Processing; 8 pages
High-resolution vehicle headlamps: Technologies and scanning prototype
Creators: name: Kloppenburg, Gerolf
name: Wolf, Alexander
name: Lachmayer, Roland
Publisher: name: Berlin : Walter de Gruyter
Year: 2016
Subjects: subject: high-resolution front lighting
subject: laser diodes
subject: laser scanning unit
subject: solid state lighting
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: The introduction of adaptive front lighting systems for vehicles has increased road safety and drivers' comfort significantly within the last years. A next step in this development is the realization of higher resolution systems to further increase the functionality of vehicle headlamps toward fully adaptive front lighting systems. In this paper, we present a short overview on highly dynamic front lighting systems and the essential technologies for their realization. Different approaches are compared and evaluated regarding their applications for headlamp systems. As an example for on-road projection systems, a laser-based scanning unit is set up and evaluated. © 2016 THOSS Media & De Gruyter
Hydrothermale Dolomitisierung im Kauffunger Kalkstein (Paläozoikum - W-Sudeten, Polen
Creators: name: Skowronek, Artur
name: Wrobel, Frank
Publisher: name: Hannover : Universität Hannover. Institut für Geologie und Paläontologie
Year: 2001
Subjects: subject: Paleozioc
subject: Kauffung Limestone
subject: W Sudetes
subject: Bober-Katzbach Mts.
subject: Permo-Carboniferous volcanism
subject: hydro-thermal dolomite
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Within the Kauffung Limestone dolomite bodies related to volcanic contacts occure and are interpreted as a post-Variscan, hydrothermal volcanogenic formation. Two genetic dolomite types are discernible: a pervasive replacement saddle dolomite and a cavity filling saddle dolomite cement. Micro texture and oxygen isotopy of both dolomite types refer to heightened temperatures of formation. The ocurrence of the dolomite in contact to cross-cutting rhyolithic dikes points to a close petrogenetic relation. Dolomite bodies and rhyolithic injections in contrast to the rock wall are characterized by a distinctive cavernous texture, so that a prekinematic genesis is excluded. The formation of replacement saddle dolomite and saddle dolomite cement altogether are considered as a concomitant phenomenon of the Permo-Carboniferous volcanism widespread in the Bober-Katzbach Mountains.
description: Innerhalb des Kauffunger Kalksteins treten an vulkanische Kontakthöfe gebundene Dolomit-Körper auf, die als post-varistische, hydrothermale Bildung interpretiert werden. Genetisch lassen sich zwei Dolomit-Typen unterscheiden: ein pervasiver Ersatzsatteldolomit und ein hohlraumfüllender Satteldolomit-Zement. Mikrogefüge und Sauerstoffisotopie beider Dolomit-Typen weisen auf erhöhte Bildungstemperaturen hin. Das Auftreten des Dolomits in Kontakthöfen querschlägi-ger rhyolithischer Gänge läßt auf eine enge petrogenetische Beziehung schließen. Dolomitkörper und rhyolithische Injektionen sind im Gegensatz zum Nebengestein durch ein auffallend kavernöses Gefüge gekennzeichnet, so daß eine präkinematische Genese ausgeschlossen wird. Die Bildung von Ersatzsatteldolomit und Satteldolomit-Zement wird insgesamt als Begleiterscheinung des im Bober-Katzbach-Gebirge weit verbreiteten Permokarbon-zeitlichen Vulkanismus angesehen.
Forecasting the abnormal events at well drilling with machine learning
Creators: name: Gurina, Ekaterina
name: Klyuchnikov, Nikita
name: Antipova, Ksenia
name: Koroteev, Dmitry
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present a data-driven and physics-informed algorithm for drilling accident forecasting. The core machine-learning algorithm uses the data from the drilling telemetry representing the time-series. We have developed a Bag-of-features representation of the time series that enables the algorithm to predict the probabilities of six types of drilling accidents in real-time. The machine-learning model is trained on the 125 past drilling accidents from 100 different Russian oil and gas wells. Validation shows that the model can forecast 70% of drilling accidents with a false positive rate equals to 40%. The model addresses partial prevention of the drilling accidents at the well construction.
description: Appl Intell (2022)
Slow-roll inflation in $f(T,\mathcal{T})$ modified gravity
Creators: name: Bhat, Aaqid
name: Mandal, Sanjay
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article, we explore the concept of cosmological inflation within the framework of the $f (T,\mathcal{T})$ theory of gravity, where $f$ is a general function of the Torsion scalar $T$ and the trace, $\mathcal{T}$, of the energy-momentum tensor. It is assumed that the conditions of slow-roll inflation are applicable in$f (T,\mathcal{T})$ gravity. To determine different observables related to inflation, such as the tensor-to-scalar ratio $r$, scalar spectral index $n_s$, spectral index $ α_s $, and tensor spectral index $n_t$, the Hubble slow-roll parameters are utilized for a particular model of $f (T,\mathcal{T})$. Lastly, an assessment has been carried out to determine the feasibility of the models by conducting a numerical analysis of the parameters. The findings indicate that it is feasible to achieve compatibility with the observational measurements of slow-roll parameters by utilizing different values of the free parameters.
description: Chinese Physics C published version
Integrating Graphs with Large Language Models: Methods and Prospects
Creators: name: Pan, Shirui
name: Zheng, Yizhen
name: Liu, Yixin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Large language models (LLMs) such as GPT-4 have emerged as frontrunners, showcasing unparalleled prowess in diverse applications, including answering queries, code generation, and more. Parallelly, graph-structured data, an intrinsic data type, is pervasive in real-world scenarios. Merging the capabilities of LLMs with graph-structured data has been a topic of keen interest. This paper bifurcates such integrations into two predominant categories. The first leverages LLMs for graph learning, where LLMs can not only augment existing graph algorithms but also stand as prediction models for various graph tasks. Conversely, the second category underscores the pivotal role of graphs in advancing LLMs. Mirroring human cognition, we solve complex tasks by adopting graphs in either reasoning or collaboration. Integrating with such structures can significantly boost the performance of LLMs in various complicated tasks. We also discuss and propose open questions for integrating LLMs with graph-structured data for the future direction of the field.
Epipactis microphylla Sw.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E. microphylla (Ehrh.) Sw. (H. microphylla Schinz et Thell.) Cat. XLVIII. Früher eine unmögliche Angabe.Jetzt Art sichergestellt: 2: Buschhang oberhalb «Pierre Grosse» südwestlich Saillon, spärlich (Thommen 1943); ob dem Fussweg von Aven nach Derborence, Buchenwald, 1300m (Kuoch 1950).
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: Репрезентация социальных ценностей в эргонимах
Creators: name: Железнова, Юлия
Publisher: name: Новгородский печатный двор
Year: 2019

description: Настоящая статья посвящена анализу репрезентированности и лингвокультурной интерпретации отдельных социальных ценностей, актуализированных в составе эргонимических единиц регионального эргонимикона Удмуртии. Освещаются дискуссионные вопросы проблем определения социальных ценностей и эргонима. Вышеуказанные аспекты свидетельствуют об актуальности статьи. В результате делаются выводы о высокой репрезентированности социальных ценностей в региональном эргонимиконе.
Determinant quantum Monte Carlo study of the two-dimensional single-band Hubbard-Holstein model
Creators: name: Johnston, S.
name: Nowadnick, E. A.
name: Kung, Y. F.
name: Moritz, B.
name: Scalettar, R. T.
name: Devereaux, T. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed numerical studies of the Hubbard-Holstein model in two dimensions using determinant quantum Monte Carlo (DQMC). Here we present details of the method, emphasizing the treatment of the lattice degrees of freedom, and then study the filling and behavior of the fermion sign as a function of model parameters. We find a region of parameter space with large Holstein coupling where the fermion sign recovers despite large values of the Hubbard interaction. This indicates that studies of correlated polarons at finite carrier concentrations are likely accessible to DQMC simulations. We then restrict ourselves to the half-filled model and examine the evolution of the antiferromagnetic structure factor, other metrics for antiferromagnetic and charge-density-wave order, and energetics of the electronic and lattice degrees of freedom as a function of electron-phonon coupling. From this we find further evidence for a competition between charge-density-wave and antiferromagnetic order at half-filling.
description: 15 pages, 15 Figures, submitted to PRB
Radio seismology of the outer solar corona
Creators: name: Zaqarashvili, T. V.
name: Melnik, V. N.
name: Brazhenko, A. I.
name: Panchenko, M.
name: Konovalenko, A. A.
name: Franzuzenko, A. V.
name: Dorovskyy, V. V.
name: Rucker, H. O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Observed oscillations of coronal loops in EUV lines have been successfully used to estimate plasma parameters in the inner corona (< 0.2 R_0, where R_0 is the solar radius). However, coronal seismology in EUV lines fails for higher altitudes because of rapid decrease in line intensity. We aim to use radio observations to estimate the plasma parameters of the outer solar corona (> 0.2 R_0). We use the large Ukrainian radio telescope URAN-2 to observe type IV radio burst at the frequency range of 8-32 MHz during the time interval of 09:50-12:30 UT in April 14, 2011. The burst was connected to C2.3 flare, which occurred in AR 11190 during 09:38-09:49 UT. The dynamic spectrum of radio emission shows clear quasi-periodic variations in the emission intensity at almost all frequencies. Wavelet analysis at four different frequencies (29 MHz, 25 MHz, 22 MHz and 14 MHz) shows the quasi-periodic variation of emission intensity with periods of 34 min and 23 min. The periodic variations can be explained by the first and second harmonics of vertical kink oscillation of transequatorial coronal loops, which were excited by the same flare. The apex of transequatorial loops may reach up to 1.2 R_0 altitude. We derive and solve the dispersion relation of trapped MHD oscillations in a longitudinally inhomogeneous magnetic slab. The analysis shows that a thin (with width to length ratio of 0.1), dense (with the ratio of internal and external densities of > 20) magnetic slab with weak longitudinal inhomogeneity may trap the observed oscillations. Seismologically estimated Alfvén speed inside the loop at the height of 1 R_0 is 1000 km/s. Then the magnetic field strength at this height is estimated as 0.9 G. Extrapolation of magnetic field strength to the inner corona gives 10 G at the height of 0.1 R_0.
description: 12 pages, 10 figures, Accepted in A&A
The 0.5-2.22-micron Scattered Light Spectrum of the Disk Around TW Hya: Detection of a Partially Filled Disk Gap at 80 AU
Creators: name: Debes, J. H.
name: Jang-Condell, H.
name: Weinberger, A. J.
name: Roberge, A.
name: Schneider, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a 0.5-2.2 micron scattered light spectrum of the circumstellar disk around TW Hya from a combination of spatially resolved HST STIS spectroscopy and NICMOS coronagraphic images of the disk. We investigate the morphology of the disk at distances > 40 AU over this wide range of wavelengths, and identify the presence of a depression in surface brightness at ~80 AU that could be caused by a gap in the disk. Additionally, we quantify the surface brightness, azimuthal symmetry, and spectral character of the disk as a function of radius. Our analysis shows that the scattering efficiency of the dust is largely neutral to blue over the observed wavelengths. We model the disk as a steady alpha-disk with an ad hoc gap structure. The thermal properties of the disk are self-consistently calculated using a three-dimensional radiative transfer code that uses ray-tracing to model the heating of the disk interior and scattered light images. We find a good fit to the data over a wide range of distances from the star if we use a model disk with a partially filled gap of 30% depth at 80 AU and with a self-similar truncation knee at 100 AU. The origin of the gap is unclear, but it could arise from a transition in the nature of the disk's dust composition or the presence of a planetary companion. Based on scalings to previous hydrodynamic simulations of gap opening criteria for embedded proto-planets, we estimate that a planetary companion forming the gap could have a mass between 6-28 M_Earth.
description: To appear in ApJ online on June 14; 43 pages, 14 figures
title: Псевдонимы И.С. Аксакова в газете  «День» (1861–1865)
Creators: name: Вихрова, Нина
Publisher: name: Новгородский печатный двор
Year: 2019

description: В статье дается описание псевдонимов, принадлежащих И.С. Аксакову, которые он использовал в публицистике периода издания газеты «День» (1861–1865). Рассматриваются источники мотивации выбора им псевдонимов. Поскольку славянофильская газета имела ярко выраженную идеологическую окраску, главный редактор, выбирая для себя псевдонимы, руководствовался в первую очередь тем, чтобы они соответствовали не только стилистике публикации, но и направлению газеты. Впервые атрибутируется И. Аксакову псевдоним «Не-Петербуржец», который имеет ярко выраженную идеологическую коннотацию. Утверждается, что возникновение данного псевдонима связано со славянофильской идеей о противопоставлении Санкт-Петербурга и Москвы.
Bundled interventions of bridge orders and SBAR to improve emergency department throughput and communication in telemetry boarding patients
Creators: name: Pascarella, Vito
Publisher: name: No Publisher Supplied
Year: 2023

description: Inefficient hospital throughput is a complex problem that affects the entire organization and the patients it serves. When inefficient throughput occurs, it generates safety, quality of care, and dissatisfaction, concerns for both patients and nurses (Bornemann-Shepherd et al., 2015). Multidisciplinary teams across the patient care continuum continuously strategize to improve throughput, preventing adverse safety events, poor outcomes, and patient dissatisfaction. This quality improvement (QI) project aims to improve the current transfer process of telemetry patients with assigned ready beds in the inpatient telemetry unit, a performance improvement (PI) initiative. The invention utilized to achieve the goal is implementing a care bundle of bridge orders (BO) and the Situation-Background-Assessment-Recommendation (SBAR) communication method to improve ED throughput, creating an efficient, expeditious, and safe transfer process for positive patient outcomes. Efficient communication using a well-validated communication tool, SBAR, and BOs will ensure continuity of care until admitting physician (MD) enters a complete set of admission orders. The goal is to enhance the efficiency of throughput and handoffs to reduce opportunities for missed communication which could result in adverse patient events.
title: Имена собственные в субъектной организации романа В.И. Белова «Кануны»
Creators: name: Комлева, Наталья
Publisher: name: Новгородский печатный двор
Year: 2019

description: Имена собственные в художественном произведении являются компонентом системы средств художественной выразительности, образуя своё ономастическое пространство в тексте, они определяют специфику авторской модели мира и участвуют в построении основных текстовых категорий, особенно в создании такой категории, как субъектная организация текста.
title: Тканевые реакции в поджелудочной железе после воздействия алкогольной интоксикации в перинатальном периоде у крыс
Creators: name: Савищев, Алексей
name: Панкрашова, Елена
name: Дробленков, Андрей
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Количественные параметры и степень выраженности реактивных изменений эпителиев экзо- и эндокринного аппаратов, а также интерстициальной соединительной ткани поджелудочной железы у потомства, обусловленные перинатальным воздействием этанола на материнский организм, слабо изучены. Это затрудняет дальнейшее изучение патогенеза и эффективности медикаментозной терапии алкогольной перинатальной патологии. С целью установления реактивных изменений основных типов тканей в дольках поджелудочной железы у молодых самцов крыс после алкогольной интоксикации в перинатальном периоде, половозрелым самкам крыс устанавливали алкогольную диету, предусматривающую полупринудительное поглощение 15% раствора этанола, начиная с 1-го дня беременности до 17-го дня постнатального развития (n = 5).
Nicht-visuelle Lichtwirkung im Fahrzeuginterieur
Creators: name: Niemeyer, Arvid
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023
Subjects: Licht
Mensch
nicht-visuelle Lichtwirkung
Automobil
Interieur
circadiane Rhythmik
Schlaf-Wach-Rhythmus
Müdigkeit
Merkfähigkeit
human centric lighting

description: Licht dient Menschen nicht nur dazu ihre Umgebung wahrzunehmen, sondern beeinflusst auch deren Schlaf-Wach-Rhythmik, Wohlbefinden, Konzentrations- und Leistungsfähigkeit. In dieser Arbeit wird daher mit Hilfe von Probandenstudien analysiert, ob sich die nicht-visuelle Lichtwirkung auch im Kontext des Automobils bzw. im Fahrzeuginnenraum hervorrufen lässt. Der Fokus der Untersuchungen liegt dabei auf der aktivierenden Wirkung von Licht bei morgendlichen Fahrten.
Searching the SETI Ellipsoid with TESS
Creators: name: Cabrales, Bárbara
name: Davenport, James
name: Sheikh, Sofia
Publisher: name: Zenodo
Year: 2023

description: The SETI Ellipsoid is a strategy for technosignature candidate selection which assumes that extraterrestrial civilizations have observed a common, galactic-scale event — such as supernova 1987A — and may use it as an instance to broadcast synchronized signals indicating their presence. Continuous wide-field surveys of the sky offer a powerful new opportunity to look for these signals, compensating for the uncertainty in their estimated time of arrival. Consequently, we explore Transiting Exoplanet Survey Satellite (TESS) targets observed during the first three years of the mission in the continuous viewing zone (CVZ), which corresponds to less than 5% of the total data sample. Using improved 3D locations for stars from Gaia Early Data Release 3 (EDR3), we developed algorithms to detect 32 SN 1987A SETI Ellipsoid technosignature candidates in the TESS CVZ with uncertainties better than 0.5 lyr.
Nonlinear transverse waves in deformed dispersive solids
Creators: name: Destrade, Michel
name: Saccomandi, Giuseppe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a phenomenological approach to dispersion in nonlinear elasticity. A simple, thermomechanically sound, constitutive model is proposed to describe the (non-dissipative) properties of a hyperelastic dispersive solid, without recourse to a microstructure or a special geometry. As a result, nonlinear and dispersive waves can travel in the bulk of such solids, and special waves emerge, some classic (periodic waves or pulse solitary waves of infinite extend), some exotic (kink or pulse waves of compact support). We show that for incompressible dispersive power-law solids and forth-order elasticity solids, solitary waves can however only exist in the case of linear transverse polarization. We also study the influence of pre-stretch and hardening. We provide links with other (quasi-continuum, asymptotic) theories; in particular, an appropriate asymptotic multiscale expansion specializes our exact equations of motion to the vectorial MKdV equation, for any hyperelastic material.
Semantic segmentation of Brazilian Savanna vegetation using high spatial resolution satellite data and U-net
Creators: name: Neves, A.K.
name: Körting, T.S.
name: Fonseca, L.M.G.
name: Girolamo Neto, C.D.
name: Wittich, Dennis
name: Costa, G.A.O.P.
name: Heipke, Christian
Publisher: name: Katlenburg-Lindau : Copernicus Publications
Year: 2020
Subjects: subject: Cerrado
subject: biome
subject: physiognomies
subject: pixel-wise classification
subject: remote sensing
subject: deep learning
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Large-scale mapping of the Brazilian Savanna (Cerrado) vegetation using remote sensing images is still a challenge due to the high spatial variability and spectral similarity of the different characteristic vegetation types (physiognomies). In this paper, we report on semantic segmentation of the three major groups of physiognomies in the Cerrado biome (Grasslands, Savannas and Forests) using a fully convolutional neural network approach. The study area, which covers a Brazilian conservation unit, was divided into three regions to enable testing the approach in regions that were not used in the training phase. A WorldView-2 image was used in cross validation experiments, in which the average overall accuracy achieved with the pixel-wise classifications was 87.0%. The F-1 score values obtained with the approach for the classes Grassland, Savanna and Forest were of 0.81, 0.90 and 0.88, respectively. Visual assessment of the semantic segmentation outcomes was also performed and confirmed the quality of the results. It was observed that the confusion among classes occurs mainly in transition areas, where there are adjacent physiognomies if a scale of increasing density is considered, which agrees with previous studies on natural vegetation mapping for the Cerrado biome. © Authors 2020. All rights reserved.
Reionization Histories of Milky Way Mass Halos
Creators: name: Li, Tony Y.
name: Alvarez, Marcelo A.
name: Wechsler, Risa H.
name: Abel, Tom
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the connection between the epoch of reionization and the present day universe, by examining the extended mass reionization histories of dark matter halos identified at z=0. We combine an N-body dark matter simulation of a 600 Mpc volume with a three-dimensional, seminumerical reionization model. This provides reionization redshifts for each particle, which can then be connected with the properties of their halos at the present time. We find that the vast majority of present-day halos with masses larger than ~ few x 10^11 Msun reionize earlier than the rest of the universe. We also find significant halo-to-halo diversity in mass reionization histories, and find that in realistic inhomogenous models, the material within a given halo is not expected to reionize at the same time. In particular, the scatter in reionization times within individual halos is typically larger than the scatter among halos. From our fiducial reionization model, we find that the typical 68% scatter in reionization times within halos is ~ 115 Myr for 10^(12 \pm 0.25) Msun halos, decreasing slightly to ~ 95 Myr for 10^(15 \pm 0.25) Msun halos. We find a mild correlation between reionization history and environment: halos with shorter reionization histories are typically in more clustered environments, with the strongest trend on a scale of ~ 20 Mpc. Material in Milky Way mass halos with short reionization histories is preferentially reionized in relatively large HII regions, implying reionization mostly by sources external to the progenitors of the present-day halo. We investigate the impact on our results of varying the reionization model parameters, which span a range of reionization scenarios with varying timing and morphology.
description: 11 pages, 10 figures, 1 table. Submitted to ApJ
Gas Giants in Hot Water: Inhibiting Giant Planet Formation and Planet Habitability in Dense Star Clusters Through Cosmic Time
Creators: name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: I show that the temperature of nuclear star clusters, starburst clusters in M82, compact high-z galaxies, and some globular clusters of the Galaxy likely exceeded the ice line temperature (T_Ice ~ 150-170 K) during formation for a time comparable to the planet formation timescale. The protoplanetary disks within these systems will thus not have an ice line, decreasing the total material available for building protoplanetary embryos, inhibiting the formation of gas- and ice-giants if they form by core accretion, and prohibiting habitability. Planet formation by gravitational instability is similarly suppressed because Toomre's Q > 1 in all but the most massive disks. I discuss these results in the context of the observed lack of planets in 47 Tuc. I predict that a similar search for planets in the globular cluster NGC 6366 ([Fe/H] = -0.82) should yield detections, whereas (counterintuitively) the relatively metal-rich globular clusters NGC 6440, 6441, and 6388 should be devoid of giant planets. The characteristic stellar surface density above which T_Ice is exceeded in star clusters is ~6 x 10^3 M_sun/pc^2 f_{dg, MW}^{-1/2}, where f_{dg, MW} is the dust-to-gas ratio of the embedding material, normalized to the Milky Way value. Simple estimates suggest that ~5 - 50% of the stars in the universe formed in an environment exceeding this surface density. Caveats and uncertainties are detailed.
description: 17 pages, 7 figures
Photoconductivity of graphene devices induced by terahertz radiation at various photon energies
Creators: name: Salman, M.
name: Gouider, F.
name: Friedemann, M.
name: Schmidt, H.
name: Ahlers, Franz-J.
name: Göthlich, M.
name: Haug, Rolf J.
name: Nachtwei, G.
Publisher: name: College Park, MD : American Institute of Physics
Year: 2013
Subjects: subject: graphene
subject: Landau levels
subject: photoconductivity
subject: terahertz
subject: Electromagnetic wave emission
subject: Graphene
subject: Magnetic fields
subject: Photoconductivity
subject: Graphene devices
subject: Low magnetic fields
subject: Photoresponse measurements
subject: Resonance energies
subject: Tera Hertz
subject: Terahertz radiation
subject: Terahertz spectral range
subject: Terahertz waves
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The influence of a magnetic field on Landau levels (LLs) in graphene-based devices is described via the magneto-optical response induced by terahertz (THz) radiation. For single-layer graphene, the resonance energies of the transitions between the on Landau levels (LLs) such as L1, L2 and L3 fit quite well to the terahertz spectral range at low magnetic fields. Also, the calculations for the terahertz photoresponse (photoconductivity) in the presence of low magnetic fields, the reported calculations for the scattering rate of LLs, recent and our experimental results of photoresponse measurements yield that single-layer graphene is suitable for the detection of terahertz radiation. © 2013 AIP Publishing LLC.
Multi-source thermal model describing multi-region structure of transverse momentum spectra of identified particles and parameter dynamics of system evolution in relativistic collisions
Creators: name: Chen, Jia-Yu
name: Duan, Mai-Ying
name: Liu, Fu-Hu
name: Olimov, Khusniddin K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this article, the multi-region structure of transverse momentum ($p_T$) spectra of identified particles produced in relativistic collisions is studied by the multi-component standard distribution (the Boltzmann, Fermi-Dirac, or Bose-Einstein distribution) in the framework of a multi-source thermal model. Results are interpreted in the framework of string model phenomenology in which the multi-region of $p_T$ spectra corresponds to the string hadronization in the cascade process of string breaking. The contributions of the string hadronizations from the first-, second-, and third-, i.e., last-generations of string breakings mainly form high-, intermediate-, and low-$p_T$ regions, respectively. From the high- to low-$p_T$ regions, the extracted volume parameter increases rapidly, and temperature and flow velocity parameters decrease gradually. The multi-region of $p_T$ spectra reflects the volume, temperature, and flow velocity dynamics of the system evolution. Due to the successful application of the multi-component standard distribution, this work reflects that the simple classical theory can still play a great role in the field of complex relativistic collisions.
description: 15 pages, 7 figures. Indian Journal of Physics, accepted
Epipactis atropurpurea X Helleborine
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E. atropurpurea X Helleborine (= E. Schmalhausenii Richter) - 3: Bei der Napoleonsbrücke ob Brig (Wolf). - 3a:Bei Belleggen im Zwischbergental(Becherer1942).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Estimating the volatility of asset pricing factors
Creators: name: Becker, Janis
name: Leschinski, Christian
Publisher: name: New York, NY : Wiley Interscience
Year: 2020
Subjects: subject: asset pricing
subject: factor models
subject: realized volatility
subject: volatility forecasting
subject: Commerce
subject: Costs
subject: Monte Carlo methods
subject: Risk management
subject: Asset pricing
subject: High frequency HF
subject: Liquid asset
subject: Market volatility
subject: Realized volatility
subject: Simple approach
subject: Standard tools
subject: Financial markets
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: Models based on factors such as size or value are ubiquitous in asset pricing. Therefore, portfolio allocation and risk management require estimates of the volatility of these factors. While realized volatility has become a standard tool for liquid assets, this measure is difficult to obtain for asset pricing factors such as size and value that include smaller illiquid stocks that are not traded at a high frequency. Here, we provide a simple approach to estimate the volatility of these factors. The efficacy of this approach is demonstrated using Monte Carlo simulations and forecasts of the market volatility. © 2020 The Authors. Journal of Forecasting Published by John Wiley & Sons, Ltd.
title: Системы и сети связи с подвижными объектами
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2022

description: В практикуме представлено 6 лабораторных работ по исследованию основных технических характеристик систем и сетей связи с подвижными объектами (ССПО) и способов их обеспечения, энергетических показателей ССПО при высокоподнятых антеннах и влияния на них параметров земной поверхности, основных способов распространения радиоволн, системы сотовой связи стандарта GSM-900, основных технических характеристик спутниковых систем связи. Каждая лабораторная работа содержит краткие теоретические сведения, лабораторное задание, методические указания по их выполнению, требования к отчету, а также список контрольных вопросов к этим заданиям. Практикум будет полезен студентам, обучающимся по специальности среднего профессионального образования 11.02.08 «Средства связи с подвижными объектами», при изучении дисциплины «Монтаж и техническая эксплуатация оборудования систем мобильной связи».
How Significant is Radiation Pressure in the Dynamics of the Gas Around Young Stellar Clusters?
Creators: name: Silich, Sergiy
name: Tenorio-Tagle, Guillermo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The impact of radiation pressure on the dynamics of the gas in the vicinity of young stellar clusters is thoroughly discussed. The radiation over the thermal/ram pressure ratio time evolution is calculated explicitely and the crucial role of the cluster mechanical power and of the strong time evolution of the ionizing photon flux and of the bolometric luminosity of the exciting cluster is stressed. It is shown that radiation has only a narrow window of opportunity to dominate the wind-driven shell dynamics. This may occur only at early stages of the bubble evolution and if the shell expands into a dusty and/or a very dense proto-cluster medium. The impact of radiation pressure on the wind-driven shell becomes always negligible after about 3 Myr. Finally, the wind-driven model results allow one to compare the model predictions with the distribution of thermal pressure derived from X-ray observations. The shape of the thermal pressure profile allows then to distinguish between the energy and the momentum dominated regimes of expansion and thus conclude whether radiative losses of energy or the leakage of hot gas from the bubble interior have been significant during the bubble evolution.
description: 23 pages, 6 figures, accepted for publication in the Astrophysical Journal
Criteria and terminology applied to language Impairments (CATALISE): A qualitative exploration of dissemination efforts to guide future implementation
Creators: name: GALLAGHER, AOIFE
name: Island, Kezia
name: O Shea, Julia
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: Background: Developmental language disorder (DLD) is a condition which affects an individual’s ability to use and understand language. Terminological confusion, and the use of non-evidence-based diagnostic criteria has impacted access to services for this population for several decades. Changes in terminology and diagnosis were proposed as part of a UK-based consensus study, Criteria and Terminology Applied to Language Impairments (CATALISE), in 2016 and 2017. Since the publication of the recommendations, there have been active efforts across several English-speaking countries to support uptake of these recommendations into policy and practice. Aims: The aim of the study was to explore the experiences of individuals who have been leading the dissemination of the CATALISE recommendations since their publication in 2017. The study was undertaken to inform future implementation efforts aimed at facilitating the adoption of the recommendations into policy and practice. Methods & Procedures: Researchers, practitioners and parents from nine countries were recruited to the study (n = 27). Online focus groups and semi-structured interviews were conducted using topic guides informed by the Consolidated Framework for Implementation Research. Inductive thematic analysis was undertaken. Preliminary findings were member-checked prior to completion of the analysis. Outcomes & Results: CATALISE recommendations were described as partially adopted by participants. Dissemination strategies included building a coalition, conducting educational meetings, and developing educational materials. Common barriers to implementation related to the complexity and compatibility of the recommendations, and practitioner confidence. Four themes were identified across the data set to guide future implementation efforts: (a) ride the wave, craft the narrative (b) reach across the divide, be brave (c) create space for multiple voices and, (d) support for speech and language therapistss on the front line. Conclusions & Implications: Individuals with DLD and their families should be included in future implementation planning. Engaged leadership is essential to address issues of complexity, compatibility, sustainability and practitioner confidence if CATALISE recommendations are to be integrated into service workflow and processes. Implementation science can provide a useful lens to progress future research in this area.
title: Eine Nachgrabung in der Burkhardtshöhle, Gemeinde Westerheim, Alb-Donau-Kreis
Creators: name: Albrecht, Gerd
name: Campen, Ingo
name: Hahn, Joachim
name: Kind, Joachim
name: Lindenborn, Jutta
name: Torke, Wolfgang G.
name: Zimmermann, Andreas
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Carex longifolia Fritsch
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. longifolia (Hudson) Fritsch (C. ensifolia [Murray] Rieh., C. Xiphophyllum [L. f.] Rchb. f.) Cat. 340. Bis 1530m. l: Ob Vionnaz (J.); ob M:uraz (J.); Choex; Mauvoisin-Bois Noir; M:ex; Liardere bei Epinassey; Evionnaz (alles: Marietan); ob Mieville (Coquoz, Oberson); Finhaut (Coquoz); Ravoire (F.); Outre-Rhone (Garns). - 2: M:ontagne de Fully (Garns, Oberson); Les Verines ob Chamoson (Marietan); Ardon-Vetroz (F.); Täler der Marge,derLieneundderErtenze (Marietan);obHohtenn gegen Tatz, in Bergföhrenbeständen, etwa 1300 m (Zwicky); Tälwald ob Ausserberg, bis 1530m (idem). - 3: Schallbergam Simplon (Wolfinherb.dePalezieux).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Frühdiagenetische Karbonatzementation in glazigenen und fluviatilen Sedimenten des Wesertales NW Hameln
Creators: name: Elbracht, Jörg
Publisher: name: Hannover : Universität Hannover. Institut für Geologie und Paläontologie
Year: 1998
Subjects: subject: Sedimente
subject: Karbonatzementation
subject: Mittelterrassen-Ablagerung
subject: Regionale Geologie
subject: Sediment
subject: Zementation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: In the Weser valley NW Hameln early diagenetic carbonate cementation is present in the upper Elsterian to Drenthe sediments. Examination of the calcite cement indicated a multiphase formation. Cementation occured mainly in vadose environment above ground-water table. This process generated predominantly brown calcite cement with a crystal size of <5 to 20pm. Next to meniscus-cement this fine-crystalline calcite forms further cements typical for vadose zone. In one layer of the „Mittelterrasse'-sediments, deposited in the late Elsterian age, a calcite cement is present, which may already have formed in the Holstein Interglacial. Cementation started in the upper-most layers of the „Mittelterrasse'-sediments in a late phase of „Mittelterrasse“-accumulation in this area. The so formed consolidated layers were deformed by the Drentheglacier. After ice melting cementation continued in at least 3 phases, creating nonluminiscent phreatic, orange to red luminiscent vadose and nonluminiscent vadose calcite cement.
description: Im Wesertal NW Hameln kommt In spätelster- bis drenthezeltlichen Sedimenten frühdiagenetische, mehrphasig entstandene Karbonatzementation vor. Die Zementation fand überwiegend im vadosen Milieu oberhalb der Grundwasseroberfläche statt. Dabei entstand hauptsächlich brauner Kalzitzement mit Kristallgrößen von < 5 bis 20 pm. Neben Meniskuszement kommen noch weitere für den vadosen Bereich typische Zemente vor. In einem Abschnitt des spätelsterzeitlichen Mittelterrassen-Körpers tritt ein kalkzementierter Horizont auf, der wahrscheinlich in der Holstein-Warmzeit entstanden ist. Die Zementbildung setzte im höchsten Teil der Mittelterrassen-Sedimente bereits in der Spätphase der Mittelterrassen-Akkumulation ein. Die dabei entstandene Zementation wurde durch den nachfolgenden drenthezeitlichen Gletscher deformiert. Nach Abschmelzen des Eises fand weitere Zementation in mindestens drei Phasen statt, wobei nicht luminiszierender phreatischer, orange bis rot luminiszierender vadoser und nicht luminiszierender vadoser Kalzitzement entstand.