cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
YunMa: Enabling Spectral Retrievals of Exoplanetary Clouds
Creators: name: Ma, Sushuang
name: Ito, Yuichi
name: Al-Refaie, Ahmed Faris
name: Changeat, Quentin
name: Edwards, Billy
name: Tinetti, Giovanna
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this paper, we present YunMa, an exoplanet cloud simulation and retrieval package, which enables the study of cloud microphysics and radiative properties in exoplanetary atmospheres. YunMa simulates the vertical distribution and sizes of cloud particles and their corresponding scattering signature in transit spectra. We validated YunMa against results from the literature. When coupled to the TauREx 3 platform, an open Bayesian framework for spectral retrievals, YunMa enables the retrieval of the cloud properties and parameters from transit spectra of exoplanets. The sedimentation efficiency ($f_{\mathrm{sed}}$), which controls the cloud microphysics, is set as a free parameter in retrievals. We assess the retrieval performances of YunMa through 28 instances of a K2-18 b-like atmosphere with different fractions of H$_2$/He and N$_2$, and assuming water clouds. Our results show a substantial improvement in retrieval performances when using YunMa instead of a simple opaque cloud model and highlight the need to include cloud radiative transfer and microphysics to interpret the next-generation data for exoplanet atmospheres. This work also inspires instrumental development for future flagships by demonstrating retrieval performances with different data quality.
description: 24 pages, 12 figures, accepted in ApJ
Bismuth surfactant-enhanced III-As epitaxy on GaAs(111)A
Creators: name: Hassanen, Ahmed M.
name: Herranz, Jesus
name: Geelhaar, Lutz
name: Lewis, Ryan B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum dot (QD) growth on high ($c_{3v}$) symmetry GaAs{111} surfaces holds promise for efficient entangled photon sources. Unfortunately, homoepitaxy on GaAs{111} surfaces suffers from surface roughness/defects and InAs deposition does not natively support Stranski-Krastanov (SK) QD growth. Surfactants have been identified as effective tools to alter the epitaxial growth process of III-V materials, however, their use remains unexplored on GaAs{111}. Here, we investigate Bi as a surfactant in III-As molecular beam epitaxy (MBE) on GaAs(111)A substrates, demonstrating that Bi can eliminate surface defects/hillocks in GaAs and (Al,Ga)As layers, yielding atomically-smooth hillock-free surfaces with RMS roughness values as low as 0.13 nm. Increasing Bi fluxes are found to result in smoother surfaces and Bi is observed to increase adatom diffusion. The Bi surfactant is also shown to trigger a morphological transition in InAs/GaAs(111)A films, directing the 2D InAs layer to rearrange into 3D nanostructures, which are promising candidates for high-symmetry quantum dots. The desorption activation energy ($U_{Des}$) of Bi on GaAs(111)A was measured by reflection high energy electron diffraction (RHEED), yielding $U_{Des}$ = 1.7 $\pm$ 0.4 eV. These results illustrate the potential of Bi surfactants on GaAs(111)A and will help pave the way for GaAs(111)A as a platform for technological applications including quantum photonics.
description: 9 pages, 4 figures
The influence of the liquid slab thickness on the planar vapor-liquid interfacial tension
Creators: name: Werth, Stephan
name: Lishchuk, Sergey
name: Horsch, Martin
name: Hasse, Hans
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: One of the long standing challenges in molecular simulation is the description of interfaces. On the molecular length scale, finite size effects significantly influence the properties of the interface such as its interfacial tension, which can be reliably investigated by molecular dynamics simulation of planar vapor-liquid interfaces. For the Lennard-Jones fluid, finite size effects are examined here by varying the thickness of the liquid slab. It is found that the surface tension and density in the center of the liquid region decreases significantly for thin slabs. The influence of the slab thickness on both the liquid density and the surface tension is found to scale with 1/S^3 in terms of the slab thickness S, and a linear correlation between both effects is obtained. The results corroborate the analysis of Malijevský and Jackson, J. Phys.: Cond. Mat. 24: 464121 (2012), who recently detected an analogous effect for the surface tension of liquid nanodroplets.
Trapping microparticles in a structured dark focus
Creators: name: Almeida, F.
name: Sousa, I.
name: Kremer, O.
name: da Silva, B. Pinheiro
name: Tasca, D. S.
name: Khoury, A. Z.
name: Temporão, G.
name: Guerreiro, T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally demonstrate stable trapping and controlled manipulation of silica microspheres in a structured optical beam consisting of a dark focus surrounded by light in all directions - the so-called Dark Focus Tweezer. Results from power spectrum and potential analysis demonstrate the non-harmonicity of the trapping potential landspace, which is reconstructed from experimental data in agreement to Lorentz-Mie numerical simulations. Applications of the dark tweezer in levitated optomechanics and biophysics are discussed.
description: Final version
‚Dritte Welt‘, ‚Entwicklungsländer‘, ‚Länder des Globalen Südens‘ – Länderklassifikationen im aktuellen Diskurs und Implikationen für den Erdkundeunterricht
Creators: name: Gemmeke, Henriette Luise
Publisher: name: Hannover : Institut für Didaktik der Naturwissenschaften, Leibniz Universität Hannover
Year: 2021
Subjects: subject: Human Development Index
subject: Least Developed Countries
subject: High Income Countries
subject: Low Income Countries
subject: Less Developed Countries
subject: Länder des Globalen Südens
subject: Entwicklungsländer
subject: Zweite Welt
subject: Dritte Welt
subject: Schwellenländer
subject: Industrieländer
subject: Erste Welt
subject: Länder des Globalen Nordens
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Die vorliegende Bachelorarbeit verfolgt das Ziel, einen Überblick über Länderklassifikations-ansätze und deren Problematisierung zu geben sowie aktuelle Debatten und Diskurse theorie-geleitet vorzustellen. Mithilfe qualitativer Leitfadeninterviews, als Methodik einer empirischen Erhebung, werden Implikationen in Bezug auf die Nutzung von Länderklassifikationen im Erd-kundeunterricht herausgearbeitet. Auf diese Weise wird ein Einblick in die berufliche Lebens-welt von Lehrkräften gegeben. Die Verknüpfung theoretischer und empirischer Erkenntnisse soll alle Lesenden, insbesondere Erdkundelehrkräfte, dazu motivieren, bestehende Standpunkte und Sichtweisen auf die Welt zu reflektieren und zu hinterfragen. Als Ergebnis dieser Arbeit lässt sich herausheben, dass sämtliche Klassifikationsansätze wie die Einteilung aller Länder in eine ‚Dritte, Zweite oder Erste Welt‘, in ‚Entwicklungs-, Schwel-len- und Industrieländer‘ oder auch in ‚Länder des Globalen Südens‘ und ‚Länder des Globalen Nordens‘ insbesondere aufgrund eurozentrischer Grundannahmen sowie der Dichotomisierung der Welt zu problematisieren sind. Aktuelle Debatten sowie die Neuausrichtung der For-schungsschwerpunkte symbolisieren einen veränderten und gleichberechtigteren Diskurs, lie-fern jedoch keine Neuerungen im Hinblick auf Länderklassifikationen. Auch Lehrkräfte nutzen, mangels der Kenntnis von Alternativen, Länderklassifikationen im Unterricht und verfügen teilweise über tradierte Auffassungen von ‚Entwicklung‘.Es gilt eine Multiperspektivität und Reflexivität für einen zeitgemäßen Erdkundeunterricht zu schaffen. Auch müssen vermehrt Alternativen erzeugt und bestehende Raumkonstruktionen ab-gebaut werden, um der Heterogenität der Welt gerecht zu werden.
Interaktion des humanen CD8 mit MHC Klasse I und CD3/TCR
Creators: name: Potthast, Kerstin
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: CD8
subject: expression
subject: activation
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Bewegungskompensierende Teilbandcodierung von Bewegtbildsequenzen mit sehr niedrigen Übertragungsbitraten
Creators: name: Qian, Deyu
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Forward analysis
subject: block-based subband coding
subject: apative quantization
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Korrelationen von Rauschquellen bei Nd:YAG Lasersystemen
Creators: name: Quetschke, Volker Marcel
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Diode pumped Nd:YAG-lasers
subject: frequency noise
subject: intensity noise
subject: beam geometry fluctuations
subject: coupling of pump-power to frequency
subject: current-lock
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Molekularer Mechanismus für die Funktion von Auxilin bei der Dissoziation der Hülle von clathrinbedeckten Vesikeln
Creators: name: Scheele, Urte
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Auxilin
subject: binding-motifs
subject: uncoating
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
ПОРУЧЕНИЯ ПРЕЗИДЕНТА РОССИЙСКОЙ ФЕДЕРАЦИИ КАК СПОСОБ РЕАЛИЗАЦИИ СКРЫТЫХ ПОЛНОМОЧИЙ
Creators: name: Обгольц Сергей Алексеевич
Publisher: name: Образование и право
Year: 2023
Subjects: Президент РФ
глава государства
скрытые полномочия
поручения
указ
распоряжение
Конституция РФ
конституционное право
полномочия Президента РФ
правовая природа поручений
государственный орган.

description: В отечественной правовой науке остается спорным и обсуждаемым проблема легализации и реализации скрытых полномочий Президента Российской Федерации. В настоящее время на конституционном уровне получил закрепление такой акт Президента РФ, как поручения. Институт поручений Президента Российской Федерации сегодня активно развивается. Целью работы является изучение и установление связи института скрытых полномочий Президента Российской Федерации и поручений Президента Российской Федерации. Автором статьи анализируются примеры скрытых полномочий в принимаемых Президентом Российской Федерации поручениях. В статье делается вывод о том, что поручения Президента РФ являются эффективным инструментом, способом реализации его скрытых полномочий. Таким образом, в работе устанавливается корреляция между скрытыми полномочиями главы государства с издаваемыми им поручениями.
ПРАВОВАЯ РЕГЛАМЕНТАЦИЯ ПРОФЕССИОНАЛЬНОЙ ЭТИКИ СОТРУДНИКОВ ОРГАНОВ ВНУТРЕННИХ ДЕЛ
Creators: name: Карпова Александра Владимировна
name: Брагиш Александр Владимирович
name: Манилкин Николай Васильевич
Publisher: name: Образование и право
Year: 2023
Subjects: полиция
этика
мораль
нравственность
кодекс этики
долг
честь
справедливость
коррупция
этикет.

description: В статье аргументирована важность следования сотрудника ОВД этикетным и этическим правилам, закрепленным в Кодексе этики и служебного поведения сотрудников органов внутренних дел Российской Федерации и соблюдение норм служебного этикета как формальной основы поддержания дисциплины, уточняются специфические особенности правила делового общения, в контексте многонационального, поликультурного российского общества.
title: АКТУАЛЬНЫЕ ПРОБЛЕМЫ ПРИ ПРЕКРАЩЕНИИ ПРОИЗВОДСТВА ПО ДЕЛУ О БАНКРОТСТВЕ ГРАЖДАНИНА ПО ПРИЧИНЕ ОТСУТСТВИЯ КАНДИДАТУРЫ ФИНАНСОВОГО УПРАВЛЯЮЩЕГО
Creators: name: Смирнова, Наталья
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье анализируется закрепленный в законодательстве механизм прекращения производства по делу о банкротстве гражданина по причине отсутствия кандидатуры финансового управляющего.
Kondo frustration via charge fluctuations: a route to Mott localisation
Creators: name: Mukherjee, Abhirup
name: Vidhyadhiraja, N. S.
name: Taraphder, A.
name: Lal, Siddhartha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a minimal effective impurity model that captures the phenomenology of the Mott-Hubbard metal-insulator transition (MIT) of the half-filled Hubbard model on the Bethe lattice in infinite dimensions as observed by dynamical mean field theory (DMFT). This involves extending the standard Anderson impurity model Hamiltonian to include an explicit Kondo coupling $J$, as well as a local on-site correlation $U_b$ on the conduction bath site connected directly to the impurity. For the case of attractive local bath correlations ($U_{b}<0$), the extended Anderson impurity model (e-SIAM) sheds new light on several aspects of the DMFT phase diagram. For example, the $T=0$ metal-to-insulator quantum phase transition (QPT) is preceded by an excited state quantum phase transition (ESQPT) where the local moment eigenstates are emergent in the low-lying spectrum. Long-ranged fluctuations are observed near both the QPT and ESQPT, suggesting that they are the origin of the quantum critical scaling observed recently at high temperatures in DMFT simulations. The $T=0$ gapless excitations at the QCP display particle-hole interconversion processes, and exhibit power-law behaviour in self-energies and two-particle correlations. These are signatures of non-Fermi liquid behaviour that emerge from the partial breakdown of the Kondo screening.
description: 49 pages, 17 figures, Supplementary Materials included
Experimental investigation of the two-phase local heat transfer coefficients for condensation of R134a in a micro-structured plate heat exchanger
Creators: name: Wang, Ru
name: Sun, Tingyan
name: Polzin, Anja-Elsa
name: Kabelac, Stephan
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2022
Subjects: subject: Condensation
subject: Local heat transfer coefficient
subject: Micro-structured
subject: Plate heat exchanger
subject: Heat flux
subject: Heat transfer coefficients
subject: Heat transfer performance
subject: Mean square error
subject: Microstructure
subject: Nusselt number
subject: Predictive analytics
subject: Condensation heat transfer coefficients
subject: Experimental investigations
subject: Local heat transfer
subject: Plate heat exchangers
subject: Root mean square errors
subject: Saturation pressure
subject: Two-phase heat transfer
subject: Heat exchangers
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Plate heat exchangers are widely used for two-phase heat transfer in the industrial applications, and recently more attention has been paid to the plate heat exchangers with enhanced surface due to their better heat transfer performance. In this paper, the local condensation heat transfer coefficients are studied using R134a in a micro-structured plate heat exchanger. In order to obtain a more accurate prediction model, a series of measurements are conducted under various operating conditions. The mass flux of R134a varied from 47 kg/m2s to 77 kg/m2s, the saturation pressure in the condenser ranged from 6.32 bar to 8.95 bar, and the value of the heat flux was between 13 kW/m2 and 22 kW/m2. The local two-phase Nusselt number increases with the increase of the mass flux. As the saturation pressure increases, the local two-phase Nusselt number increase at the beginning of the condensation and decrease at the end of the condensation. However, the effect of heat flux on local heat transfer is irregular, due to the interaction of these parameters in the experiment. Comparing with the unstructured plate heat exchanger, R134a condenses faster at the beginning of the process in the micro-sturctured plate heat exchanger, and the local heat transfer performs better when the vapor quality is lower. Combing with the phenomenon that the overall heat flux in micro-structured plate is larger under the same working conditions, it shows that the overall heat transfer of the micro-structured plate is improved, but the local heat transfer uprades only at lower vapor qualities. A new correlation is developed, it predicts all the experimental data within the root mean square error 10%, and a new correlation for the waterside is suggested as well. © 2021, The Author(s).
Typha latifolia
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 0.mcamata X latifolia - 2:Vetroz;Sitten;Lens (alles:Wolf,teste Schulze).- 3:Zermatt:Moräne des "Findelengletschers, 2300m (Mantz); ob Zmutt gegen Kälbermatten, 2050 m (Thellung 1919); beide Angaben sind möglicherweise nicht hierher zu stellen,sondern auf O.cruenta zu beziehen.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
ПРАВОВОЕ ОБЕСПЕЧЕНИЕ НАЛОГОВОЙ, ИНВЕСТИЦИОННОЙ И ЦЕНОВОЙ ПОЛИТИКИ В НЕФТЕГАЗОВОМ КОМПЛЕКСЕ РОССИИ
Creators: name: Аннадурдыева Гулпам Агамановна
name: Гапонов Игорь Константинович
Publisher: name: Образование и право
Year: 2023
Subjects: нефтегазовый комплекс
топливно-энергетический комплекс
правовое регулирование
государственное администрирование
налогообложение
инвестиции
ценообразование
валютные и налоговые поступления
государственный бюджет
акцизная политика
Россия
США.

description: В ходе исследования необходимо было рассмотреть состояние системы правового обеспечения процессов выработки налоговой, инвестиционной и ценовой политики в нефтегазовом комплексе России и указать ее особенности. Для этого были проанализированы организационно-правовые механизмы выработки налоговой, инвестиционной и ценовой политики в нефтегазовом комплексе России; сравнены системы российского и американского налогообложения; представлены перспективы дальнейшего развития нефтегазового комплекса России. В статье отмечается, что от правового регулирования и государственного администрирования, главным образом, зависит вся деятельность в сфере топливно-энергетического комплекса. Автор констатирует, что своевременная разработка и внедрение законодательными органами власти и грамотное применение исполнительными органами власти необходимых нормативных актов является оплотом пополнения бюджета и процветания нашего государства.
PVDF and P(VDF-TrFE) Electrospun Scaffolds for Nerve Graft Engineering: A Comparative Study on Piezoelectric and Structural Properties, and In Vitro Biocompatibility
Creators: name: Gryshkov, Oleksandr
name: AL Halabi, Fedaa
name: Kuhn, Antonia Isabel
name: Leal-Marin, Sara
name: Freund, Lena Julie
name: Förthmann, Maria
name: Meier, Nils
name: Barker, Sven-Alexander
name: Haastert-Talini, Kirsten
name: Glasmacher, Birgit
Publisher: name: Basel : Molecular Diversity Preservation International (MDPI)
Year: 2021
Subjects: subject: polyvinylidene fluoride
subject: polyvinylidene fluoride-co-trifluoroethylene
subject: electrospinning
subject: scaffold
subject: piezoelectric module
subject: dynamic impact machine
subject: peripheral nervous system
subject: nerve conduit
subject: in vitro performance
subject: neurite outgrowth
subject: zeta potential
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Polyvinylidene fluoride (PVDF) and its copolymer with trifluoroethylene (P(VDF-TrFE)) are considered as promising biomaterials for supporting nerve regeneration because of their proven biocompatibility and piezoelectric properties that could stimulate cell ingrowth due to their electrical activity upon mechanical deformation. For the first time, this study reports on the comparative analysis of PVDF and P(VDF-TrFE) electrospun scaffolds in terms of structural and piezoelectric properties as well as their in vitro performance. A dynamic impact test machine was developed, validated, and utilised, to evaluate the generation of an electrical voltage upon the application of an impact load (varying load magnitude and frequency) onto the electrospun PVDF (15–20 wt%) and P(VDF-TrFE) (10–20 wt%) scaffolds. The cytotoxicity and in vitro performance of the scaffolds was evaluated with neonatal rat (nrSCs) and adult human Schwann cells (ahSCs). The neurite outgrowth behaviour from sensory rat dorsal root ganglion neurons cultured on the scaffolds was analysed qualitatively. The results showed (i) a significant increase of the β-phase content in the PVDF after electrospinning as well as a zeta potential similar to P(VDF-TrFE), (ii) a non-constant behaviour of the longitudinal piezoelectric strain constant d33, depending on the load and the load frequency, and (iii) biocompatibility with cultured Schwann cells and guiding properties for sensory neurite outgrowth. In summary, the electrospun PVDF-based scaffolds, representing piezoelectric activity, can be considered as promising materials for the development of artificial nerve conduits for the peripheral nerve injury repair.
Calculation of the connective constant for self-avoiding walks via the pivot algorithm
Creators: name: Clisby, Nathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We calculate the connective constant for self-avoiding walks on the simple cubic lattice to unprecedented accuracy, using a novel application of the pivot algorithm. We estimate that μ= 4.684 039 931(27). Our method also provides accurate estimates of the number of self-avoiding walks, even for walks with millions of steps.
description: 10 pages, 3 figures
Untersuchungen zur Genregulation eukaryoter Gene in Borrelien-infizierten Endothelzellen
Creators: name: Schlotzhauer, Anja
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Borrelia
subject: gene regulation
subject: endothelial cells
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
A near-infrared catalogue of the Galactic novae in the VVV survey area
Creators: name: Saito, R. K.
name: Minniti, D.
name: Angeloni, R.
name: Catelan, M.
name: Beamin, J. C.
name: Borissova, J.
name: Dekany, I.
name: Kerins, E.
name: Kurtev, R.
name: Mennickent, R. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Near-IR data of Classical Novae contain useful information about the ejected gas mass and the thermal emission by dust formed during eruption, and provide independent methods to classify the objects according to the colour of their progenitors, and the fading rate and features seen after eruption. The VISTA Variables in the Via Lactea survey (VVV) is a near-IR ESO Public Survey mapping the MW bulge and southern plane. Data taken during 2010-2011 covered the entire area in the JHKs bands plus some epochs in Ks-band of the ongoing VVV variability campaign. We used the novae list provided by VSX/AAVSO catalogue to search for all objects within the VVV area. We used the VVV data to create a near-IR catalogue of the known Galactic novae in the 562 sq.deg. area covered by VVV. The VVV near-IR catalogue of novae contains JHKs photometry of 93 objects completed as of December 2012. We also checked in the ongoing VVV variability campaign for the light-curves of novae that erupted in the last years. VVV images can also be used to discover and study novae by searching for the expanding shell. Since objects are seen at different distances and reddening levels, the colour-magnitude and colour-colour diagrams show the novae spread in magnitude as well as in colour. Dereddened colours and reddening-free indices were used with caution and cannot be a good approach in all cases since the distance and spectral features prevent more conclusive results for some extreme objects. Light-curves for some recent novae are presented. Thanks to its high spatial resolution in the near-IR, and large Ks-range, the VVV survey can be a major contributor for the search and study of novae in the most crowded and high-extinction regions of the Milky Way. The VVV survey area contains ~35 of all known novae in the Galaxy.
description: Accepted for publication in Astronomy and Astrophysics (Section 14: Catalogs and data)
title: Rainer Christlein: Der Runde Berg bei Urach. I. Die frühgeschichtlichen Kleinfunde außerhalb der Plangrabungen. Heidelberg 1974
Creators: name: Müller, Hermann Friedrich
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Rainer Christlein: Der Runde Berg bei Urach. I. Die frühgeschichtlichen Kleinfunde außerhalb der Plangrabungen. Abhandlungen der Heidelberger Akademie der Wissenschaften, Philosophischhistorische Klasse 1974, 1. Abhandlung. 49 Seiten, 6 Abbildungen im Text, 36 Tafeln, 1 Beilage.
ПРАВОВОЕ РЕГУЛИРОВАНИЕ УЧАСТИЯ АСПИРАНТОВ И СТУДЕНТОВ В НАУЧНО-ИССЛЕДОВАТЕЛЬСКОЙ, ОПЫТНО-КОНСТРУКТОРСКОЙ И КОНСУЛЬТАЦИОННОЙ ДЕЯТЕЛЬНОСТИ ВУЗОВ
Creators: name: Голышева Ольга Ивановна
Publisher: name: Образование и право
Year: 2023
Subjects: научно-исследовательская
опытно-конструкторская деятельность вузов
правовая форма консультационной деятельности вуза
правовой статус студентов и аспирантов
гражданско-правовой договор
студент и аспирант как субъекты гражданско-правового договора
результат интеллектуальной деятельности.

description: В статье рассматриваются вопросы, связанные с правовым обеспечением участия аспирантов и студентов в научно-исследовательской, опытно-конструкторской и консультационной деятельности вузов. Указанные виды деятельности рассматриваются как выходящие за рамки образовательного процесса в рамках освоения программ высшего профессионального и послевузовского образования. Целью работы является определение системы правового регулирования рассматриваемых отношений и их правового оформления, что вызвано актуальностью исследуемых вопросов, вызванной как недостаточностью исследований проблематики, связанной с деятельностью вузов за пределами реализации программ высшего, послевузовского и дополнительного профессионального образования, а также необходимостью разграничения образовательной деятельности вузов, как их основной функции, и научной, коммерческой и некоммерческой деятельности, основанной на использовании интеллектуального потенциала своих научных, педагогических кадров с привлечением аспирантов и студентов. Делается вывод, что наиболее приемлемой формой привлечения аспирантов и студентов к участию в научно-исследовательской, опытно-конструкторской и консультационной деятельности вузов является гражданско-правовой договор, обеспечивающий условия защиты прав сторон рассматриваемых отношений.
X-ray Dose Rate and Spectral Measurements during Ultrafast Laser Machining Using a Calibrated (High-Sensitivity) Novel X-ray Detector
Creators: name: Mosel, Philip
name: Sankar, Pranitha
name: Düsing, Jan Friedrich
name: Dittmar, Günter
name: Püster, Thomas
name: Jäschke, Peter
name: Vahlbruch, Jan-Willem
name: Morgner, Uwe
name: Kovacev, Milutinv
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: X-ray emission
subject: micromachining
subject: dose rate
subject: X-ray spectrum
subject: ultrafast laser
subject: Dewey Decimal Classification::600 | Technik

description: Ultrashort pulse laser machining is subject to increase the processing speeds by scaling average power and pulse repetition rate, accompanied with higher dose rates of X-ray emission generated during laser–matter interaction. In particular, the X-ray energy range below 10 keV is rarely studied in a quantitative approach. We present measurements with a novel calibrated X-ray detector in the detection range of 2–20 keV and show the dependence of X-ray radiation dose rates and the spectral emissions for different laser parameters from frequently used metals, alloys, and ceramics for ultrafast laser machining. Our investigations include the dose rate dependence on various laser parameters available in ultrafast laser laboratories as well as on industrial laser systems. The measured X-ray dose rates for high repetition rate lasers with different materials definitely exceed the legal limitations in the absence of radiation shielding.
Laplacian spectra of recursive treelike small-world polymer networks: Analytical solutions and applications
Creators: name: Liu, Hongxiao
name: Zhang, Zhongzhi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A central issue in the study of polymer physics is to understand the relation between the geometrical properties of macromolecules and various dynamics, most of which are encoded in the Laplacian spectra of a related graph describing the macrostructural structure. In this paper, we introduce a family of treelike polymer networks with a parameter, which has the same size as the Vicsek fractals modeling regular hyperbranched polymers. We study some relevant properties of the networks and show that they have an exponentially decaying degree distribution and exhibit the small-world behavior. We then study the Laplacian eigenvalues and their corresponding eigenvectors of the networks under consideration, with both quantities being determined through the recursive relations deduced from the network structure. Using the obtained recursive relations we can find all the eigenvalues and eigenvectors for the networks with any size. Finally, as some applications, we use the eigenvalues to study analytically or semi-analytically three dynamical processes occurring in the networks, including random walks, relaxation dynamics in the framework of generalized Gaussian structure, as well as the fluorescence depolarization under quasiresonant energy transfer. Moreover, we compare the results with those corresponding to Vicsek fractals, and show that the dynamics differ greatly for the two network families, which thus enables us to distinguish between them.
description: Definitive version accepted for publication in The Journal of Chemical Physics
Molekulare Grundlagen der Pflanze-Mikroorganismus-Interaktion am Beispiel der Assoziation mit Azospirillum brasilense
Creators: name: Schulze-Stanke, Sandra
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: K+ channels
subject: Azospirillum brasilense
subject: Arabidopsis thaliana
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: [no abstract]
Mixed formulation of physics-informed neural networks for thermo-mechanically coupled systems and heterogeneous domains
Creators: name: Harandi, Ali
name: Moeineddin, Ahmad
name: Kaliske, Michael
name: Reese, Stefanie
name: Rezaei, Shahed
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Physics-informed neural networks (PINNs) are a new tool for solving boundary value problems by defining loss functions of neural networks based on governing equations, boundary conditions, and initial conditions. Recent investigations have shown that when designing loss functions for many engineering problems, using first-order derivatives and combining equations from both strong and weak forms can lead to much better accuracy, especially when there are heterogeneity and variable jumps in the domain. This new approach is called the mixed formulation for PINNs, which takes ideas from the mixed finite element method. In this method, the PDE is reformulated as a system of equations where the primary unknowns are the fluxes or gradients of the solution, and the secondary unknowns are the solution itself. In this work, we propose applying the mixed formulation to solve multi-physical problems, specifically a stationary thermo-mechanically coupled system of equations. Additionally, we discuss both sequential and fully coupled unsupervised training and compare their accuracy and computational cost. To improve the accuracy of the network, we incorporate hard boundary constraints to ensure valid predictions. We then investigate how different optimizers and architectures affect accuracy and efficiency. Finally, we introduce a simple approach for parametric learning that is similar to transfer learning. This approach combines data and physics to address the limitations of PINNs regarding computational cost and improves the network's ability to predict the response of the system for unseen cases. The outcomes of this work will be useful for many other engineering applications where deep learning is employed on multiple coupled systems of equations for fast and reliable computations.
Nichtresonante Laserstreudiagnostik an Hochdruckgasentladungen
Creators: name: Reiche, Jens
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Plasma diagnostics
subject: Thomson scattering
subject: Rayleigh scattering
subject: salpeter theory
subject: memory function formalism
subject: electric arc
subject: optical breakdown
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Simulation of the Particle Distribution and Resulting Laser Processing of Selective Laser Melting Processes
Creators: name: Bode, Tobias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität
Year: 2017
Subjects: subject: Selective Laser Melting
subject: SLM
subject: Simulation
subject: 3D printing
subject: Ray Tracing algorithm
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Selective Laser Melting (SLM) is a 3D printing technology which is suited for additively manufacturing of metals and polymers. The main barriers of this process are the lack of reproducibility and the control of the influence of the process parameters, like laser power, scan rate, layer height and particle distribution for instance. A high fidelity simulation scheme for SLM processes can not only give an insight into the physical behaviour during the process, but can also help to control the whole 3D printing process in order to guarantee the reproducibility of the desired final product properties. However many challenges have to be overcome in order to guarantee a high fidelity simulation, like modelling the heat source or the phase change for instance. In this work the modelling of the heat source is addressed. A Ray Tracing algorithm should be implemented into the existing thermomechanical Optimal Transportation Meshfree (OTM) code. A Ray Tracing algorithm for the simulation of laser processes is investigated in combination with the Discrete Element Method in the literature. Therefore in a first step this algorithm should be recoded in order to benchmark the implemented Ray Tracing algorithm. In the next step this algorithm has to be implemented into the OTM code. An investigation by means of some examples should demonstrate the influence of the Ray Tracing algorithm on the fusion of two metal particles.
All electrically controlled quantum gates for single heavy hole spin qubits
Creators: name: Szumniak, P.
name: Bednarek, S.
name: Pawłowski, J.
name: Partoens, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, several nanodevices which realize basic single heavy hole qubit operations are proposed and supported by time dependent self consistent Poisson-Schrödinger calculations using a four band heavy hole-light hole model. In particular we propose a set of nanodevices which can act as Pauli X, Y, Z quantum gates and as a gate that acts similar as a Hadamard gate (i.e. it creates a balanced superposition of basis states but with an additional phase factor) on the heavy hole spin qubit. We also present the design and simulation of a gated semiconductor nanodevice which can realize an arbitrary sequence of all these proposed single quantum logic gates. The proposed devices exploit the self-focusing effect of the hole wave function which allows for guiding the hole along a given path in the form of a stable soliton-like wave packet. Thanks to the presence of the Dresselhaus spin orbit coupling, the motion of the hole along a certain direction is equivalent to the application of an effective magnetic field which induces in turn a coherent rotation of the heavy hole spin. The hole motion and consequently the quantum logic operation is initialized only by weak static voltages applied to the electrodes which cover the nanodevice. The proposed gates allow for an all electric and ultrafast (tens of picoseconds) heavy hole spin manipulation and give the possibility to implement a scalable architecture of heavy hole spin qubits for quantum computation applications.
description: 13 pages, 9 figures
Billiard Dynamics: An Updated Survey with the Emphasis on Open Problems
Creators: name: Gutkin, Eugene
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This is an updated and expanded version of our earlier survey article \cite{Gut5}. Section $§1$ introduces the subject matter. Sections $§2 - §4$ expose the basic material following the paradigm of elliptic, hyperbolic and parabolic billiard dynamics. In section $§5$ we report on the recent work pertaining to the problems and conjectures exposed in the survey \cite{Gut5}. Besides, in section $§5$ we formulate a few additional problems and conjectures. The bibliography has been updated and considerably expanded.
E-unification for Second-Order Abstract Syntax
Creators: name: Kudasov, Nikolai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Higher-order unification (HOU) concerns unification of (extensions of) $λ$-calculus and can be seen as an instance of equational unification ($E$-unification) modulo $βη$-equivalence of $λ$-terms. We study equational unification of terms in languages with arbitrary variable binding constructions modulo arbitrary second-order equational theories. Abstract syntax with general variable binding and parametrised metavariables allows us to work with arbitrary binders without committing to $λ$-calculus or use inconvenient and error-prone term encodings, leading to a more flexible framework. In this paper, we introduce $E$-unification for second-order abstract syntax and describe a unification procedure for such problems, merging ideas from both full HOU and general $E$-unification. We prove that the procedure is sound and complete.
description: An extended version (with a few more examples and some extra remarks)
ПРАВОСУДИЕ: МЕЖДУ ПРАВОМ И СПРАВЕДЛИВОСТЬЮ
Creators: name: Харитонов Леонид Александрович
Publisher: name: Образование и право
Year: 2023
Subjects: правосудие
справедливость
закон
судья
право
юридический позитивизм
юснатурализм
КПИ
юридическое образование.

description: Со времен Платона не утихает спор о соотношении права и справедливости. Является справедливость лишь оценочным суждением о праве и не может учитываться судами, которые должны действовать, исключительно руководствуясь законом или же судьи должны при осуществлении правосудия полагаться на собственное «чувство справедливости». В статье рассматриваются обе стратегии взаимодействия этих двух социальных регуляторов. Юридический позитивизм в своей прежде всего «эксклюзивной версии» отрицает всякую связь справедливости с правом. В статье акцент сделан на критику юридического позитивизма и его ограниченных возможностей, не позволяющих находить судьям оптимальные решения при рассмотрении «сложных дел». Невозможность посредством абстрактных норм предусмотреть все варианты возможных ситуаций, возникающих, в реальной жизни и равная убедительность аргументов, предоставляемых сторонами в процессе, делает положение судьи-позитивиста весьма уязвимым для критики в случае вынесения вердикта, который не совпадет с общественными ожиданиями. Альтернативный взгляд на соотношение права и справедливости предлагают сторонники различных модификаций теории естественного права. В статье рассмотрены мнения лишь отдельных представителей, прежде всего Дж. Финниса и Э. Д’Амато, каждый из которых, подчеркивая роль справедливости, по-разному ее толковал и видел перспективы ее реализации в юридической практике. При этом нужно учитывать и то, что само право также трактуется ими не одинаково. Э. Д’Амато, например, по сути, сводит право к форме его внешнего выражения, следовательно, справедливость становиться в его парадигмальных построениях ключевым регулятором поведения субъектов.
On the Damping-Induced Self-Recovery Phenomenon in Mechanical Systems with Several Unactuated Cyclic Variables
Creators: name: Chang, Dong Eui
name: Jeon, Soo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: Classical Physics (physics.class-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 70H33, 70Q05, 93D99, 37J15

description: The damping-induced self-recovery phenomenon refers to the fundamental property of underactuated mechanical systems: if an unactuated cyclic variable is under a viscous damping-like force and the system starts from rest, then the cyclic variable will always move back to its initial condition as the actuated variables come to stop. The regular momentum conservation phenomenon can be viewed as the limit of the damping-induced self-recovery phenomenon in the sense that the self-recovery phenomenon disappears as the damping goes to zero. This paper generalizes the past result on damping-induced self-recovery for the case of a single unactuated cyclic variable to the case of multiple unactuated cyclic variables. We characterize a class of external forces that induce new conserved quantities, which we call the damping-induced momenta. The damping-induced momenta yield first-order asymptotically stable dynamics for the unactuated cyclic variables under some conditions, thereby inducing the self-recovery phenomenon. It is also shown that the viscous damping-like forces impose bounds on the range of trajectories of the unactuated cyclic variables. Two examples are presented to demonstrate the analytical discoveries: the planar pendulum with gimbal actuators and the three-link planar manipulator on a horizontal plane.
Cosmological solutions for a two-branes system in a vacuum bulk
Creators: name: Perez, Juan L.
name: Garcia-Aspeitia, Miguel A.
name: Urena-Lopez, L. Arturo
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the cosmology for a two branes model in a space-time of five dimensions where the extra coordinate is compactified on an orbifold. The hidden brane is filled with a real scalar field endowed with a quadratic potential that behaves as primordial dark matter field. This case is analyzed when the radion effects are negligible in comparison with the density energy; all possible solutions are found by means of a dynamical system approach.
Preregistration pretest: daily variation in inclusion
Creators: name: Fransen, Marieke
name: Schleu, Joyce Elena
name: Pieters, Wolter
name: Knol, Wieke
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Industrial and Organizational Psychology
subject: Psychology
subject: FOS: Psychology

description: This registration contains an attached preregistration for a pretest in which daily variation of inclusion is examined.
Constructing conformally invariant equations by using Weyl geometry
Creators: name: Faci, Sofiane
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present a simple, systematic and practical method to construct conformally invariant equations in arbitrary Riemann spaces. This method that we call "Weyl-to-Riemann" is based on two features of Weyl geometry. i) A Weyl space is defined by the metric tensor and the Weyl vector $W$, it becomes equivalent to a Riemann space when $W$ is gradient. ii) Any homogeneous differential equation written in a Weyl space by means of the Weyl connection is conformally invariant. The Weyl-to-Riemann method selects those equations whose conformal invariance is preserved when reducing to a Riemann space. Applications to scalar, vector and spin-2 fields are presented, which demonstrates the efficiency of the present method. In particular, a new conformally invariant spin-2 field equation is exhibited. This equation extends Grishchuk-Yudin's equation and fixes its limitations since it does not require the Lorenz gauge. Moreover this equation reduces to the Drew-Gegenberg and Deser-Nepomechie equations in respectively Minkowski and de Sitter spaces.
description: 13 pages, no figures
Thixoschmieden im geschlossenen Gesenk zur Herstellung komplexer Stahlbauteile
Creators: name: Abdelfattah, Samer
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: Thixoforging
subject: steel
subject: semi solid state
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
title: Junge Romanistik. Identitätskonstruktionen in der Romania des 20. und 21. Jahrhunderts
Creators: name: Grünnagel, Christian
name: Jessen, Herle
Publisher: name: University Library Heidelberg
Year: 2015

description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 8 (2015): HeLix - Dossiers zur romanischen Literaturwissenschaft, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2