cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New P/Q Control Functions of Grid-Connected PV Inverters: Do They Have an Impact on the Anti-Islanding Detection Behaviour in European Grids?
Creators: name: Lauss, G.
name: Preining, P.
name: Bründlinger, R.
name: Bletterie, B.
name: Nagelmüller, M.
name: Pieler, R.
name: Miletic, Z.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Balance of System Components

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1645-1651
description: Methods of anti-islanding detection of grid connected inverters are increasingly in the focus of
distributed generation (DG) research. While various principles have been developed over the last decades to avoid an
unintentional islanding operation of generation units in the grid, nowadays the challenge of novel requirements sets
up a number of questions related to its behaviour in field operation. In particular this is represented by the
introduction of active and reactive power controls (PQ control) that is already manifested in numerous standards as a
mandatory requirement for grid connected operation. This important control feature is a crucial point within the
discussion of modern smart grids and opens up many important prospects for upcoming concepts of distribution
grids.
However, the introduction of PQ control imposes another loop control that is superordinate to the primary current
control as well as to all fundamental safety detection controls. This fact raises sceptical questions whether the
implemented routines against unintentional islanding operations can be interfered or even inhibited. This contribution
gives statements based on theoretical evaluations and reproducible laboratory test results in addition. Different
control schemes and various control parameter configurations of the PQ control (hysteresis, bandwidth, response
time, etc.) have been tested for its resulting behaviour of the islanding detection and its consequent disconnection
times as well as the non-detection zone (NDZ).
Musical chairs : not a game for homeless children
Creators: name: Rogers, Rosemary.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Almost Minimal Systems and Periodicity in Hyperspaces
Creators: name: Fernández, Leobardo
name: Good, Chris
name: Puljiz, Mate
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37E15 (Primary) 37B05, 37B10, 54H20 (Secondary)

description: Given a self-map of a compact metric space $X$, we study periodic points of the map induced on the hyperspace of closed subsets of $X$. We give some necessary conditions on admissible sets of periods for these maps. Seemingly unrelated to this, we construct an almost totally minimal homeomorphism of the Cantor set. We also apply our theory to give a full description of admissible period sets for induced maps of the interval maps. The description of admissible periods is also given for maps induced on symmetric products.
description: 20 pages, 3 figures
Supernova Driving. III. Synthetic Molecular Cloud Observations
Creators: name: Padoan, Paolo
name: Juvela, Mika
name: Pan, Liubin
name: Haugbølle, Troels
name: Nordlund, Åke
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a comparison of molecular clouds (MCs) from a simulation of supernova-driven interstellar medium (ISM) turbulence with real MCs from the Outer Galaxy Survey. The radiative transfer calculations to compute synthetic CO spectra are carried out assuming the CO relative abundance depends only on gas density, according to four different models. Synthetic MCs are selected above a threshold brightness temperature value, $T_{\rm B,min}=1.4$ K, of the $J=1-0$ $^{12}$CO line, generating 16 synthetic catalogs (four different spatial resolutions and four CO abundance models), each containing up to several thousands MCs. The comparison with the observations focuses on the mass and size distributions and on the velocity-size and mass-size Larson relations. The mass and size distributions are found to be consistent with the observations, with no significant variations with spatial resolution or chemical model, except in the case of the unrealistic model with constant CO abundance. The velocity-size relation is slightly too steep for some of the models, while the mass-size relation is a bit too shallow for all models only at a spatial resolution $dx\approx 1$ pc. The normalizations of the Larson relations show a clear dependence on spatial resolution, for both the synthetic and the real MCs. The comparison of the velocity-size normalization suggests that the SN rate in the Perseus arm is approximately 70\% or less of the rate adopted in the simulation. Overall, the realistic properties of the synthetic clouds confirm that supernova-driven turbulence can explain the origin and dynamics of MCs.
description: accepted for publication in ApJ
Digitale Medien und ihre Wirkung auf die frühe Kindheit
Creators: name: Laryssa Wolf
name: Wyss, Laura
Publisher: name: Hochschule Luzern - Soziale Arbeit
Year: 2022
Subjects: Kinder
Medienkompetenz
digitale Medien

description: Kinder, die ab dem Jahr 2010 geboren wurden, gelten als die erste Generation, die bereits im Kleinkindalter ganz selbstverständlich mit Smartphones umgeht. Digitale Medien beherrschen die Haushalte und prägen die kindliche Entwicklung. Kinder im Alter zwischen drei und sechs Jahren werden mit vielen, für ihre gesunde Entwicklung äusserst wichtigen Herausforderungen und Veränderungen konfrontiert. Mit elterlicher Unterstützung werden den Kindern die nötigen Erfahrungsräume zur Entfaltung und Entwicklung geschaffen. Die Digitalisierung macht vielen Eltern zu schaffen und überfordert sie in der Medienkompetenzförderung. Diese Bachelorarbeit befasst sich mit den Auswirkungen von digitalen Medien auf die frühkindliche Entwicklung sowie der Medienkompetenzförderung. Fragen zu kindlicher Entwicklung, Auswirkungen des Medienkonsums, Medienkompetenzförderung sowie Elternbildung werden mittels entsprechender Fachliteratur beantwortet. Die gewonnenen Erkenntnisse zeigen, dass sich Kinder im Alter zwischen drei und sechs Jahren Medienkompetenzen nicht selbst aneignen können, sondern die Eltern, Lehr- und Betreuungspersonen gefordert sind, die Kinder darin zu fördern. Abschliessend werden zwei mögliche Handlungssettings der Sozialen Arbeit erläutert, die zur Medienkompetenzförderung dienen.
Generalized Zeta function representation of groups and 2-dimensional Topological Yang-Mills theory: The example of GL(2, F_q) and PGL(2, F_q)
Creators: name: Roche, Philippe
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We recall the relation between Zeta function representation of groups and two-dimensional topological Yang-Mills theory through Mednikh formula. We prove various generalisations of Mednikh formulas and define generalization of Zeta functions representations of groups. We compute some of these functions in the case of the finite group $GL(2, {\mathbb F}_q)$ and $PGL(2,{\mathbb F}_q).$ We recall the table characters of these groups for any $q$, compute the Frobenius-Schur indicator of their irreducible representations and give the explicit structure of their fusion rings
description: 27 pages
Direct Determination of Maximum Power Point and its Application to Variable Step-Size MPPT
Creators: name: Voyer, N.
name: Chapalain, N.
name: Yamamoto, H.
name: Nagato, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Balance of System Components

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1609-1614
description: This paper introduces a new analysis for the determination of the maximum power point (MPP) in
photovoltaic (PV) systems. First, it will be shown by mathematical analysis that the voltage distance to the maximum
power point (MPP) can be accurately estimated from the current, the voltage derivative of the power, and the inverse
breakdown voltage of the PV array. Then, a novel variable-step MPPT algorithm is described and proposed, enabling
an estimation of the voltage derivative of the power that is robust to fast changing irradiance conditions, and for
which the size of the increment step is determined from the estimated voltage distance to the MPP. Finally, the
performance and robustness of the proposed algorithm are evaluated and compared with classical hill-climbing
algorithm using standardized (CENELEC EN50530) and measured irradiance scenarios. The algorithm is designed to
converge to the MPP in a single step.
Beziehungsgestaltung in der psychosozialen, anonymen, textbasierten Onlineberatung
Creators: name: Tamborini, Julia
Publisher: name: Hochschule Luzern - Soziale Arbeit
Year: 2023
Subjects: Beratung
Beratungsbeziehung
Online

description: Menschliche Kommunikation als Hauptinstrument für Berater*innen im klassischen Beratungssetting bedienen sich herkömmlicher Interaktions- und Kommunikationstheorien. Diese zeigen sich auch digital, unterliegen jedoch den Einflussfaktoren der Rahmenbedingungen der Onlineberatung. Das Ziel dieser vorliegenden Forschungsarbeit ist es zu beantworten, wie der fehlende Umstand von nonverbaler Kommunikation auf die Gestaltung einer professionellen Beziehung wirkt. Dazu wird die folgende Forschungsfrage gestellt: Welche Aspekte sind bei der professionellen Beziehungsgestaltung in der psychosozialen, anonymen, textbasierten Onlineberatung zu berücksichtigen? Es wurden insgesamt sechs Expert*inneninterviews mit Fachpersonen aus der Onlineberatung geführt, gefolgt von einer anschliessenden qualitativen Inhaltsanalyse. Spezifisch wurde im Interview auf die bereits aus der Theorie erarbeiteten Themen eingegangen. Die Ergebnisse und derer Gegenüberstellung mit der Theorie ergaben, dass durch die fehlenden Ko-Präsenz, die Imagination über das Gegenüber ein wichtiger Bestandteil in der digitalen Kommunikation darstellt. Ausserdem gaben die Beteiligten an, dass es für eine Beziehung Zeit braucht und dass diese sich über einen längerdauernden Dialog entwickeln kann. Die nonverbale Kommunikation wird dabei explizit in schriftlicher Form ausgedrückt und ist ein bewusstes Handeln, im Gegensatz zur klassischen Interaktion vor Ort. Um Resonanz zu erfahren, fehlt die räumliche Nähe, kann jedoch über zeitliche und inhaltliche Bezugnahme hergestellt werden. Aus diesen Erkenntnissen wurden im Schlussteil dieser Arbeit mögliche Handlungsansätze vorgestellt.
Management of Voltage on LV Distribution Networks with Pre-Existing High Levels of Uncontrolled PV Systems & Inverters
Creators: name: Franklin, E.
name: Singh, J.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Balance of System Components

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1629-1634
description: Low voltage urban distributors servicing single-phase residential or small commercial loads and
hosting large numbers of photovoltaic (PV) systems can become hosting capacity limited for new PV installations
owing to the phenomenon of voltage-rise at times of peak PV generation. We investigate the efficacy of adding smart
PV systems, capable of both reactive power output and power curtailment via battery storage, to existing networks as
a means of managing voltage within acceptable or regulated limits and thus enabling higher penetrations of PV
systems with existing network infrastructure. We model numerous complete 3-phase 4-wire LV distributors with
random allocation of loads and random deployment of PV systems, containing varying fractions of smart, controlled
PV systems, and using as an example network, load and generation data from the Canberra region. We confirm that
indeed voltage rise is likely to be a major problem for most networks without controlled PV systems, that voltagedependent
reactive power control is an effective means for managing voltage but that this approach has limited
capability for many networks if pre-existing uncontrolled PV penetration already exceeds in the order of 25%. We
show that reactive power control when combined with active power curtailment is a very effective method for
controlling voltage, with as little as 25 – 50% of deployed systems enabled with this control regime being able to
effectively manage voltage on the majority of networks up to very high penetration levels, albeit with increasing
storage capacity demands if fewer systems are equipped – typically between 5 and 15 kWh being required at the
extreme, but for example up to 25 kWh required at worst for a PV systems at the very end of some networks if loaded
with 75% pre-existing uncontrolled systems. Finally, the modelling results point to the importance for network
operators to ensure the deployment of PV systems balanced across phases, so as to avoid both large current imbalance
and high voltage rise. We propose, via the approach presented, a methodology which could be readily applied to any
generic network configuration or indeed to specific known real networks, in order to determine the best strategy for
managing very high penetration of photovoltaic systems.
Die Bedeutung von Macht in der Beratung
Creators: name: Glavas, Svetlana
name: Vogel, Erika
Publisher: name: Hochschule Luzern - Soziale Arbeit
Year: 2023
Subjects: Beratung
Macht
Soziale Arbeit

description: Die vorliegende Arbeit handelt von Macht in der Sozialen Arbeit. Soziale Arbeit findet vorwiegend in Beziehungen statt, und in Beziehungen findet sich immer auch der Aspekt der dem Thema teilweise zu wenig Beachtung geschenkt, auch im Kontext der professionellen Beratung der Sozialen Arbeit. In der vorliegenden Arbeit wird anhand einer Literaturrecherche und -analyse untersucht, wie in der professionellen Beratung der Sozialen Arbeit, speziell im freiwilligen Kontext, ein sensibler Umgang mit Macht in der Zusammenarbeit mit Klient*innen gefunden werden kann. Das Verständnis, die Merkmale, die Handlungsfelder, die Methodik und die Gestaltung von Beratung in der Sozialen Arbeit werden erläutert. Weiter wird sich dem Begriff der Macht mittels Definition, Abgrenzung und Machttheorien angenähert. Es wird auf die Auseinandersetzung mit Macht in der Beratung eingegangen, insbesondere auf Methoden und Instrumente zur Machtanalyse und Reflexion über Machtaspekte, sowie Möglichkeiten zur machtsensiblen Gestaltung von Gesprächen. Die Autorinnen kommen zum Schluss, dass Sozialarbeitende einen bewussten Umgang mit Macht finden sollten. Es wird aufgezeigt, wie sich Professionelle mit der eigenen Machtbiografie auseinandersetzen können. Gezeigt wird auch, wie organisationale Strukturen kritisch hinterfragt und ein Dialog zum Thema Macht im Arbeitsteam angestossen werden kann. Die vorliegende Arbeit beinhaltet zusätzlich Handlungsempfehlungen für die Beratungspraxis in Bezug auf Machtaspekte.
An interim analysis of case-control data collected on children diagnosed with mosaic karyotype in utero from 1986 to 1992
Creators: name: Parkinson, Elizabeth M. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Alelaimat Chemistry Laboratory IRB
Creators: name: Alelaimat
Publisher: name: Zenodo
Year: 2023
Subjects: ACL IRB
Internal IRB
ACL requirements
ACL policies
ACL protocol

description: This is the internal Institutional Review Board for the Alelaimat Chemistry Laboratory institution that make by Abdul Kareem K. Alelaimat as the undefined professor for it. This work is done and copyrighted legally in USA.
Sexting bei Jugendlichen
Creators: name: Keller, Leslie
Publisher: name: Hochschule Luzern - Soziale Arbeit
Year: 2023
Subjects: Jugendliche
Sexting

description: Durch den digitalen Wandel und die damit verbundenen technologischen Fortschritte hat sich das mediale Nutzungsverhalten von Jugendlichen verändert und die Entstehung von neuen sexualbezogenen Phänomenen im virtuellen Raum ist begünstigt worden. Sexting ist eines dieser Phänomene und bezeichnet den privaten und freiwilligen Austausch von erotischem Bild- und Videomaterial. Medial in Erscheinung trat der Begriff vor zirka 15 Jahren, als missbräuchlich weitergeleitete und veröffentlichte Sexts schwerwiegende Folgen für junge Menschen hatten. Dies führte zu einem wissenschaftlichen und öffentlichen Diskurs, der die Risiken von Sexting in den Vordergrund stellte und es als abweichendes Verhalten klassifizierte. Mit der vorliegenden Arbeit wird aufgezeigt, dass Sexting in der heutigen Lebenswelt von Jugendlichen zentral ist und es sich dabei nicht um eine Abnormalität, sondern um eine Strategie handelt, um ganz unterschiedliche motivierte Bedürfnisse zu befriedigen. Die Risiken, die sich durch die Praktizierung von Sexting ergeben können, werden dabei nicht ausgeblendet, jedoch wird eine lebensweltorientierte Herangehensweise an die Thematik gewählt, in der es die Jugendlichen in einer selbstbestimmten Sexualität zu befähigen gilt. Dafür werden wichtige Aspekte aufgezeigt, die für ein professionelles Handeln der Sozialen Arbeit berücksichtigt werden müssen, wie die Aufklärung im digitalen Zeitalter, erforderliche (Medien-)Kompetenzen und sinnvolle Präventionsansätze. Am Schluss wird auf die Verantwortlichkeiten der Sozialen Arbeit eingegangen, die sich im Umgang mit Jugendlichen, die Sexting betreiben, ergeben und so wird die zentrale Fragestellung der vorliegenden Literaturarbeit beantwortet.
Yield Modelling for Micro Inverter, Power Optimizer and String Inverter under Clear and Partially Shaded Conditions
Creators: name: Sinapis, K.
name: Tzikas, C.
name: Litjens, G.B.M.A.
name: Van Den Donker, M.N.
name: Folkerts, W.
name: Van Sark, W.G.J.H.M.
name: Smets, A.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1587-1591
description: Building Integrated and Building Attached Photovoltaic (BIPV, BAPV) systems may suffer from lower
performance than predicted as a result of unwanted partial shading. New system architectures have been proposed to
optimize performance. The common approach of these new architectures is to track the Maximum Power Point (MPP) of
every solar module individually. A simulation model is developed to quantify the benefits and drawbacks of different PV
system architectures. The model includes a shading evaluation of the installation with means of 3D modeling, irradiance
calculations, PV cell modelling and finally an empirical power conversion model. The energy yield of three leading
architectures is confirmed (string inverter, power optimizer, micro inverter) for clear and partial shading conditions by
means of an outdoor field test. Results show that there is a clear benefit for MLPE systems at higher irradiance when
partial shading is present. The analysis method can be used by PV installers and system designer to determine which is
the optimal system architecture for maximum energy yield especially when partial shading is present.
Quantum Dynamics in Phase Space using Projected von Neumann Bases
Creators: name: Machnes, Shai
name: Assémat, Elie
name: Larsson, Henrik R.
name: Tannor, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe the mathematical underpinnings of the biorthogonal von Neumann method for quantum mechanical simulations (PvB). In particular, we present a detailed discussion of the important issue of non-orthogonal projection onto subspaces of biorthogonal bases, and how this differs from orthogonal projection. We present various representations of the Schrödinger equation in the reduced basis and discuss their relative merits. We conclude with illustrative examples and a discussion of the outlook and challenges ahead for the PvB representation.
description: 39 pages, 9 figures
Tool to Determine Economic Capacity Dimensioning in PV Battery Systems Considering Various Design Parameters
Creators: name: Moshövel, J.
name: Angenendt, G.
name: Magnor, D.
name: Sauer, D.U.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Balance of System Components

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1639-1644
description: When discussing photovoltaic (PV) battery storage systems, one main question is how to determine the
most economical storage capacity size for a certain household. In this contribution a tool is developed which is able
to calculate a proper battery size for a wide range of different household and PV combinations. To find the most
economic storage capacity for households having one to five residents, in each case nine different load profiles are
considered. For an exact optimization a high amount of simulations of the power flows within the PV battery system
would be necessary, for which the exact PV profile and household load profile for at least one year of the respective
household are needed. In contrast, the developed tool calculates a good solution just based on the information about
the PV system size and the number of residents using energy flow results of exemplary simulations for certain
configurations. Additionally, the user is able to define different parameters such as battery price, lifetime etc.
according to his own requirements or use the reference values.
Proteolytic ceramic capillary membranes for the production of peptides under flow
Creators: name: Hoog Antink, Marieke Melanie
name: Sewczyk, Tim
name: Kroll, Stephen
name: Árki, Pál
name: Beutel, Sascha
name: Rezwan, Kurosch
name: Maas, Michael
Publisher: name: Elsevier
Year: 2019
Subjects: subject: Membrane bioreactor
subject: Enzyme immobilization
subject: SubtilisinA
subject: Bioactive peptides
subject: Casein digestion
subject: Surface functionalization
subject: Mimenima
subject: 620

description: In this study, we investigate the effect of membrane surface functionalization on the immobilization of the protease subtilisin A and its performance in the production of peptides from the model protein casein under flow. The surface of tubular ceramic membranes was silanized to yield carboxylated and aminated supports for enzyme immobilization via non-covalent and carbodiimide activated binding. The protease density correlated with electrostatic interactions between the positively charged enzyme and the supports, with the highest enzyme density reached on negatively charged, carboxylated membranes (0.019 molecules/nm², noncovalent approach). Enzyme leaching was reduced by covalent binding of protease to carboxylated supports (5% leached) and slightly improved by binding to aminated membranes (46%) over non-covalent binding to unfunctionalized reference capillaries (66%). Regarding carbodiimide activated immobilization, protease on unfunctionalized and aminated supports exhibited a significantly larger specific activity (0.99 μmol/min/mg) than enzymes on carboxylated surfaces (0.15 μmol/min/mg), which suggests preferred enzyme orientation. In protein hydrolysis, these differences in surface-enzyme interactions were reflected by variations in peptide composition and degree of hydrolysis. Accordingly, we demonstrate that surface functionalization critically determines the surface properties of protease support materials for the production of peptides under flow and allows tailoring the performance of proteolytic capillary membranes.
On Fourier time-splitting methods for nonlinear Schrodinger equations in the semi-classical limit II. Analytic regularity
Creators: name: Carles, Rémi
name: Gallo, Clément
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the time discretization based on Lie-Trotter splitting, for the nonlinear Schrodinger equation, in the semi-classical limit, with initial data under the form of WKB states. We show that both the exact and the numerical solutions keep a WKB structure, on a time interval independent of the Planck constant. We prove error estimates, which show that the quadratic observables can be computed with a time step independent of the Planck constant. The functional framework is based on time-dependent analytic spaces, in order to overcome a previously encountered loss of regularity phenomenon.
description: 21 pages
Studienreport: Aufgabenprofile und Handlungsmodi der Fachberatung für Kindertageseinrichtungen (AHFF) - Qualitative Interviewstudie
Creators: name: Lipowski, Hilke
name: Kaiser, Anna-Katharina
name: Fuchs-Rechlin, Kirsten
Publisher: name: Universität Bremen
Year: 2023
Subjects: subject: Studie
subject: Qualitative Interviews
subject: Experteninterviews
subject: Kindertageseinrichtungen
subject: berufliches Handlungsfeld
subject: Studienreport
subject: 300

description: Dieser Studienreport beschreibt den qualitativen Teil des vom BMBF geförderten Forschungsprojekts "Aufgabenprofile und Handlungsmodi von Fachberaterinnen und Fachberatern“ (AHFF) der Weiterbildungsinitiative Frühpädagogische Fachkräfte (WiFF) des Deutschen Jugendinstituts (DJI). Fachberatung spielt eine Schlüsselrolle für die Qualitätssicherung und -entwicklung im System der Kindertagesbetreuung. Was ihre strukturelle Verankerung, ihr gesetzlich kodifiziertes Mandat sowie ihre Aufgabenprofile betrifft, befindet sie sich als Berufsfeld jedoch nach wie vor in einem Werdeprozess. Ziel der qualitativen Interviewstudie war daher, zu untersuchen, wie sich Fachberatung für Kindertagesstätten in Deutschland während der vergangenen Jahrzehnte entwickelt hat, für welche Aufgaben Fachberater:innen zuständig sind und wie sie diese Aufgaben ausüben, kurz: inwiefern sich ein Profil von Fachberatung herausgebildet hat. Zur Untersuchung der zentralen Forschungsfrage nach den Aufgabenbereichen der Fachberatung sowie der Gestaltung dieser beruflichen Rolle innerhalb des Systems der Kindertagesbetreuung wurden qualitative Experten-Interviews mit 26 Fachberater:innen aus elf Bundesländern telefonisch durchgeführt. Die qualitative Interviewstudie der WiFF knüpft an die Forderungen nach einem klar definierten Berufsbild an, beleuchtet die Zuständigkeitsbereiche und das berufliche Selbstverständnis von Fachberater:innen durch Einblicke in ihren Berufsalltag und leistet damit einen Beitrag zur Professionalisierung der Frühen Bildung. Der bei Qualiservice verfügbare Datensatz besteht aus den Transkripten von 26 deutschsprachigen Einzel-Interviews mit Fachberater:innen und dem dazu genutzten Interviewleitfaden. Dieser Studienreport beschreibt die theoretische Rahmung und Zielsetzung der Studie, die Methoden der Stichprobenbildung und Datenerhebung sowie das Auswertungsverfahren und zentrale Ergebnisse der Studie, die als Grundlage für die Entwicklung eines Kompetenzprofils Fachberatung dienten.
Boundedness and exponential convergence of a chemotaxis model for tumor invasion
Creators: name: Jin, Haiyang
name: Xiang, Tian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We revisit the following chemotaxis system modeling tumor invasion \begin{equation*} \begin{cases} u_t=Δu-\nabla \cdot(u\nabla v),& x\inΩ, t>0,\\ v_t=Δv+wz,& x\inΩ, t>0,\\ w_t=-wz,& x\inΩ, t>0,\\ z_t=Δz-z+u, & x\inΩ, t>0,\\ \end{cases} \end{equation*} in a smooth bounded domain $Ω\subset \mathbb{R}^n(n\geq 1)$ with homogeneous Neumann boundary and initial conditions. This model was recently proposed by Fujie et al. \cite{FIY14} as a model for tumor invasion with the role of extracellular matrix incorporated, and was analyzed by Fujie et al. \cite{FIWY16}, showing the uniform boundedness and convergence for $n\leq 3$. In this work, we first show that the $L^\infty$-boundedness of the system can be reduced to the boundedness of $\|u(\cdot,t)\|_{L^{\frac{n}{4}+ε}(Ω)}$ for some $ε>0$ alone, and then, for $n\geq 4$, if the initial data $\|u_0\|_{L^{\frac{n}{4}}}$, $\|z_0\|_{L^\frac{n}{2}}$ and $\|\nabla v_0 \|_{L^n}$ are sufficiently small, we are able to establish the $L^\infty$-boundedness of the system. Furthermore, we show that boundedness implies exponential convergence with explicit convergence rate, which resolves the open problem left in \cite{FIWY16}.
description: 15pages, Submmitted
Operational Experience and Economics Operational Costs And Their Influence on LCOE of PV Plants Experience and Outlook on Operational Costs for Small to Medium PV Plants in Switzerland from a Point of View of an Independent Power Producer
Creators: name: Vontobel, T.
name: Nordmann, T.
name: Lingel, R.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1592-1593
description: Operational costs of PV plants become more relevant for levelized costs of electricity (LCOE) with decreasing
upfront costs for PV systems. This is true due to the shift of the balance in shares of LCOE for the two main components of
LCOE capital costs and operational costs. Understanding and optimizing operational costs is therefor essential for further
reduction of LCOE for future PV plants. This work analyses true operational costs for small to medium (30…250 kWp) PV
plants over a period of time of five years in terms of most relevant components as well as absolute numbers and gives an
outlook on possible future developments of operational costs.
The share of operational costs in the LCOE rose from 17% to 29% in the observed period of time, although absolute numbers
of operational costs were reduced by around 15%. This is mainly due to the fast reduction of capital costs of about 55%.
While the trend for the capital costs seems to be given with PV system price learning curves, the main components of
operational costs show different potentials for cost reduction.
Evaluation of the first year of a maternal serum screening program conducted in Victoria
Creators: name: Nisbet, Susan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The XXL Survey. XIII. Baryon content of the bright cluster sample
Creators: name: Eckert, D.
name: Ettori, S.
name: Coupon, J.
name: Gastaldello, F.
name: Pierre, M.
name: Melin, J. -B.
name: Brun, A. M. C. Le
name: McCarthy, I. G.
name: Adami, C.
name: Chiappetti, L.
name: Faccioli, L.
name: Giles, P.
name: Lavoie, S.
name: Lefevre, J. P.
name: Lieu, M.
name: Mantz, A.
name: Maughan, B.
name: McGee, S.
name: Pacaud, F.
name: Paltani, S.
name: Sadibekova, T.
name: Smith, G. P.
name: Ziparo, F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Traditionally, galaxy clusters have been expected to retain all the material accreted since their formation epoch. For this reason, their matter content should be representative of the Universe as a whole, and thus their baryon fraction should be close to the Universal baryon fraction. We make use of the sample of the 100 brightest galaxy clusters discovered in the XXL Survey to investigate the fraction of baryons in the form of hot gas and stars in the cluster population. We measure the gas masses of the detected halos and use a mass--temperature relation directly calibrated using weak-lensing measurements for a subset of XXL clusters to estimate the halo mass. We find that the weak-lensing calibrated gas fraction of XXL-100-GC clusters is substantially lower than was found in previous studies using hydrostatic masses. Our best-fit relation between gas fraction and mass reads $f_{\rm gas,500}=0.055_{-0.006}^{+0.007}\left(M_{\rm 500}/10^{14}M_\odot\right)^{0.21_{-0.10}^{+0.11}}$. The baryon budget of galaxy clusters therefore falls short of the Universal baryon fraction by about a factor of two at $r_{\rm 500}$. Our measurements require a hydrostatic bias $1-b=M_X/M_{\rm WL}=0.72_{-0.07}^{+0.08}$ to match the gas fraction obtained using lensing and hydrostatic equilibrium. Comparing our gas fraction measurements with the expectations from numerical simulations, our results favour an extreme feedback scheme in which a significant fraction of the baryons are expelled from the cores of halos. This model is, however, in contrast with the thermodynamical properties of observed halos, which might suggest that weak-lensing masses are overestimated. We note that a mass bias $1-b=0.58$ as required to reconcile Planck CMB and cluster counts should translate into an even lower baryon fraction, which poses a major challenge to our current understanding of galaxy clusters. [Abridged]
description: 13th paper in the XXL series, A&A in press
SiOC-based polymer derived-ceramic porous anodes for microbial fuel cells
Creators: name: Canuto De Almeida E Silva, Thamires
name: Bhowmick, Gourav Dhar
name: Ghangrekar, Makarand
name: Wilhelm, Michaela
name: Rezwan, Kurosch
Publisher: name: Elsevier
Year: 2019
Subjects: subject: Anode materials
subject: Microbial fuel cell
subject: Polymer-derived ceramics
subject: SiOC
subject: Mimenima
subject: 620

description: The applicability of a new class of ceramic materials in Microbial Fuel Cells (MFCs) was investigated, targeting the development of cost-effective anode materials with long-term durability. In this work, silicon oxycarbide (SiOC)-based porous anodes were prepared by the polymer-derived ceramics (PDCs) route, using poly(methyl silsesquioxane) and poly(methyl phenyl silsesquioxane) as precursors while incorporating carbonaceous fillers (graphite and carbon black) and metal precursor (NiCl2). Tape casting was used in the manufacturing followed by pyrolysis at 1000 °C under nitrogen atmosphere. The interior structure and surface morphology were characterized with scanning electron microscopy (SEM), nitrogen adsorption, vapor adsorption, and contact angle measurements. The developed anodes were tested in MFC with aqueous cathode configuration using a low-cost clayware cylinder as the anodic chamber. The performance of MFC using PDC-based anodes was compared with MFC having carbon felt as anode material, which showed a two-fold increase in power density (211 and 111 mW m−2, respectively) and normalized energy recovery in former and also demonstrated chemical oxygen demand (COD) removal efficiency of about 85%. The improved performance of the PDC-based anodes is attributed to its porous structure, hydrophilic surface, and high specific surface area (39.89 m² g−1). The biocompatibility was confirmed by biofilm growth on the surfaces, while a sufficient electrical conductivity (0.10–0.18 S cm−1) makes it superior electrode material for application in MFCs.
A tidally disrupting dwarf galaxy in the halo of NGC 253
Creators: name: Toloba, Elisa
name: Sand, David
name: Spekkens, Kristine
name: Crnojevic, Denija
name: Simon, Joshua
name: Guhathakurta, Puragra
name: Strader, Jay
name: Caldwell, Nelson
name: McLeod, Brian
name: Seth, Anil
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of Scl-MM-Dw2, a new dwarf galaxy at a projected separation of $\sim$50 kpc from NGC 253, as part of the PISCeS (Panoramic Imaging Survey of Centaurus and Sculptor) project. We measure a tip of the red giant branch distance of $3.12\pm0.30$ Mpc, suggesting that Scl-MM-Dw2 is likely a satellite of NGC 253. We qualitatively compare the distribution of red giant branch (RGB) stars in the color-magnitude diagram with theoretical isochrones and find that it is consistent with an old, $\sim$12 Gyr, and metal poor, $-2.3
description: 6 pages, 4 figures, 1 table. ApJL accepted
Assessment of PV System Performance with Incomplete Monitoring Data
Creators: name: Koumpli, E.
name: Palmer, D.
name: Rowley, P.
name: Betts, T.R.
name: Gottschalg, R.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1594-1597
description: An analysis of PV system performance requires both meteorological and electrical data for the
assessment period. However, actual in-field data acquisition is rarely 100%, often resulting in a significant amount of
incomplete data sets for performance assessment. These gaps, if not taken into account, may add noticeable bias in
yield assessment and thus estimations of the lacking data need to be made. An approach of back-filling the required
data is given and validated here. Three different categories of data loss are identified and case-specific methods of
synthesising missing data are developed. The integrity of the performance assessment process is assessed. The three
cases of data loss are defined as: missing meteorological data only, missing electrical monitoring data only and
missing both electrical and meteorological data. Case-specific methods are proposed and their performance against
measured data is evaluated statistically by means of: root mean square error (RMSE), mean absolute error (MAE) and
mean bias error (MBE). The inferred monthly performance ratio on two of the selected cases showed accurate
agreement against measured data presenting significantly low MBE values, equal or less than -0.01.
Recognition of Shading Events Caused by Moving Clouds and Determination of Shadow Velocity from Solar Radiation Measurements
Creators: name: Lappalainen, K.
name: Valkealahti, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1568-1573
description: Fast variability of solar radiation is the main cause of fluctuating photovoltaic (PV) power production
and shadows caused by overpassing clouds are the main reason of such variability. Fast irradiance transitions caused
by the edges of shadows can lead to situations where the grid inverter is not able to follow the global maximum
power point (MPP) causing extra losses. Further, fast fluctuations of the power fed to the electric grid can cause, for
example, power balance and quality problems.
This paper presents a method to recognize shading events caused by moving clouds from measured irradiance
data. The developed recognition method has been used to analyse shading events from 15 months of full-time
irradiance recordings and the results of the analysis are presented. Further, the Linear Cloud Edge (LCE) method has
been used to determinate velocities of the shadows.
ČETVRTI SIMPOZIJUM MAGISTARA FARMACIJE TUZLANSKOG KANTONA "KOMPETENCIJE FARMACEUTA U PREVENCIJI INFEKCIJA I SUZBIJANJU REZISTENCIJE NA ANTIBIOTIKE"
Creators: name: KOMORA MAGISTARA FARMACIJE TUZLANSKOG KANTONA
name: Udruženje Za Nutricionizam I Dijetetiku BiH
name: Europska Udruga Za Higijensko Inžinjerstvo I Dizajn (EHEDG)
name: Cipurković Aneda
name: Nikić Dragan
Publisher: name: Zenodo
Year: 2017
Subjects: pharmacy
infections
microorganisms
therapy
antibiotics
drug-resistant
research
role of pharmacists

description: SAŽECI RADOVA IZ PODRUČJA FARMAKOLOGIJE SA TOKSIKOLOGIJOM 4. Simpozijum «KOMPETENCIJE FARMACEUTA U PREVENCIJI INFEKCIJA I SUZBIJANJU REZISTENCIJE NA ANTIBIOTIKE» KOMORA MAGISTARA FARMACIJE TUZLANSKOG KANTONA
Preservation LTM using spaced paradigm
Creators: name: Caffrey, Michelle
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Experimental Analysis of Behavior
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: How much information we retain depends on type/schedule of training. It has been widely acknowledged that spaced learning is advantageous compared to massed learning for cognitively healthy young adults and should be considered an educational standard. Literature would suggest that the spacing effect is preserved with age, though it is unclear whether this effect translates to more ecologically valid concepts such as face-name associations, which are particularly susceptible to deterioration with age. Two experiments were conducted to investigate the effects of spacing across recent/remote retention intervals, and the effect of age on spacing in cognitively healthy older adults using the Face-Name Pairs task. Experiment 1 results suggest that the beneficial memory effects of spacing are particularly observed with long-term memory. Experiment 2 results suggest that older adults are impaired at learning compared to younger adults, that the spacing effect influences both older and younger adults at longer intervals, and that spaced-trained participants display similar forgetting patterns at longer intervals, irrespective of age. These results may have some implications regarding improving the conditions under which optimum retention occurs (namely, whether spacing is beneficial when learning ecologically valid concepts at longer intervals outside of laboratory settings), and may provide insight into the effect of age on our ability to learn and remember face-name associations.
Gravitational Black Hole Hair from Event Horizon Supertranslations
Creators: name: Averin, Artem
name: Dvali, Gia
name: Gomez, Cesar
name: Lust, Dieter
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss BMS supertranslations both at null-infinity and on the horizon for the case of the Schwarzschild black hole. We show that both kinds of supertranslations lead to infinetly many gapless physical excitations. On this basis we construct a quotient algebra using suited superpositions of both kinds of transformations which cannot be compensated by an ordinary BMS-supertranslation and therefore are intrinsically due to the presence of an event horizon. We show that these quotient transformations are physical and generate gapless excitations on the horizon that can account for the gravitational hair as well as for the black hole entropy. We identify the physics of these modes as associated with Bogolioubov-Goldstone modes due to quantum criticality. Classically the number of these gapless modes is infinite. However, we show that due to quantum criticality the actual amount of information-carriers becomes finite and consistent with Bekenstein entropy. Although we only consider the case of Schwarzschild geometry, the arguments are extendable to arbitrary space-times containing event horizons.
description: 29 pages, Latex
ADHS – Ein Potenzial an Stärken für die Soziokulturelle Animation
Creators: name: Trüb, Regula
Publisher: name: Hochschule Luzern - Soziale Arbeit
Year: 2022
Subjects: ADHS
Soziokulturelle Animation

description: Die Aufmerksamkeitsdefizit-Hyperaktivitätsstörung (ADHS) gehört zu den nach ICD-10 klassifizierten Krankheitsbildern mit definierter Symptomatik. Trotzdem wird diese Krankheit teilweise immer noch als gesellschaftliche Modeerscheinung bezeichnet oder sogar völlig in Abrede gestellt und ist mit Vorurteilen behaftet. Diese sitzen so tief, dass Fachpersonen dazu raten, dass ADHS bei Stellenbewerbungen verschwiegen werden soll. Untersuchungen zeigen hingegen, dass sich ADHS nicht nur als defizitäre Störung manifestiert, sondern auch mit spezifischen Stärken verbunden ist. Die in der Fachliteratur genannten Stärken werden jedoch im Arbeitsleben kaum gewürdigt, geschweige denn genutzt. Ja,sie sind häufig den Menschen mit einer ADHS selbst nicht bewusst. Ein Vergleich der ADHS-Stärken mit beruflichen Anforderungen an Soziokulturelle Animator_innen zeigt, dass Menschen mit einer ADHS möglicherweise eine erhöhte Affinität für diesen Tätigkeitsbereich haben. Im Rahmen einer qualitativen Forschung wird anhand von leitfadengestützten Interviews herausgearbeitet, bei welchen beruflichen Tätigkeiten die Soziokulturelle Animator_innen mit ADHS ihre spezifischen Stärken einsetzen. Die Auswertung zeigt auf, dass diese Berufpersonen mit ihren ADHS-Stärken für die SKA ein grosses Potenzial darstellen. Beispiele aus der Berufspraxis verdeutlichen dies. Bei entsprechender Information und Sensibilisierung lässt sich diese Affinität zum Vorteil aller Beteiligten nutzen und bewusst einsetzen. Dazu müsste jedoch die defizitäre Wahrnehmungsperspektive aufgegeben oder wenigstens relativiert werden.
Survey of Operation and Maintenance Costs of PV Plants in Switzerland
Creators: name: Baumgartner, F.P.
name: Maier, O.
name: Schär, D.
name: Sanchez, D.
name: Toggweiler, P.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1583-1586
description: With worldwide prices of photovoltaic (PV) modules having dropped below € 0.6 /Wp nowadays, the
relevance of operation & maintenance costs (OMCs) relative to other costs of a photovoltaic plant increased to more than
20% up to 40% of the total costs over the whole operation period of the plant. Moreover, the level of knowledge
concerning OMCs is limited among PV plant operators either of their own plants or about other reference plants of the
same category in the field. In Switzerland a previous OMCs analysis was conducted in 2008. This knowledge is needed
to getter information to set the federal feed-in tariff for PV electricity. These federal tariff rates related to the most
economic PV plants have to be subject to a regular review according to the Swiss electricity law. This paper analyses the
survey done in 2014 with overall OMCs found between 3 and 13Rp/kWh, as an average value of the related nominal
plant power category with a high variance within one group. Over 80% of the produced electricity of the analysed grid
connected PV plants shows OMCs below 5Rp/kWh. The data collected from web based polling’s and expert interviews
covering 48MW nominal power, or 4.4% of the total installed PV power in Switzerland in 2014. The main cost drivers
of OMCs are identified to be monitoring, site visits and metering for PV plants below 100kW nominal power. Larger
plants are dominated by inverter related replacement costs of about 1Rp/kWh up to values of about 2.1Rp/kW for smaller
plants. Furthermore, priorities on reduction of OMCs are suggested, mostly thanks to reducing the labour cost due to
services of a person’s directly at the PV plant site. Reference OMCs costs of about 3Rp/kWh for today’s new 10kW sized
plants should be achievable for an optimized PV system setup with significantly reduced site visits.