cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Investigations of afterpulsing and detection efficiency recovery in superconducting nanowire single-photon detectors
Creators: name: Burenkov, Viacheslav
name: Xu, He
name: Qi, Bing
name: Hadfield, Robert H.
name: Lo, Hoi-Kwong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report on the observation of a non-uniform dark count rate in Superconducting Nanowire Single Photon Detectors (SNSPDs), specifically focusing on an afterpulsing effect present when the SNSPD is operated at a high bias current regime. The afterpulsing exists for real detection events (triggered by input photons) as well as for dark counts (no laser input). In our standard set-up, the afterpulsing is most likely to occur at around 180 ns following a detection event, for both real counts and dark counts. We characterize the afterpulsing behavior and speculate that it is not due to the SNSPD itself but rather the amplifiers used to boost the electrical output signal from the SNSPD. We show that the afterpulsing indeed disappears when we use a different amplifier with a better low frequency response. We also examine the short-lived enhancement of detection efficiency during the recovery of the SNSPD due to temporary perturbation of the bias and grounding conditions.
Prediction of child and adolescent outcomes with broadband and narrowband dimensions of internalizing and externalizing behavior using the child and adolescent version of the Strengths and Difficulties Questionnaire
Creators: name: Kulawiak, Pawel R.
name: Wilbert, Jürgen
name: Schlack, Robert
name: Börnert-Ringleb, Moritz
Publisher: name: San Francisco, Ca. : PLOS
Year: 2020
Subjects: subject: adolescent
subject: child
subject: cross-sectional study
subject: female
subject: human
subject: interview
subject: major clinical study
subject: male
subject: outcome assessment
subject: prediction
subject: strengths and difficulties questionnaire
subject: wellbeing
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: The Strengths and Difficulties Questionnaire (SDQ) is a frequently used screening instrument for behavioral problems in children and adolescents. There is an ongoing controversy -not only in educational research-regarding the factor structure of the SDQ. Research results speak for a 3-factor as well as a 5-factor structure. The narrowband scales (5-factor structure) can be combined into broadband scales (3-factor structure). The question remains: Which factors (narrowband vs. broadband) are better predictors? With the prediction of child and adolescent outcomes (academic grades, well-being, and self-belief), we evaluated whether the broadband scales of internalizing and externalizing behavior (3-factor structure) or narrowband scales of behavior (5-factor structure) are better suited for predictive purposes in a cross-sectional study setting. The sample includes students in grades 5 to 9 (N = 4642) from the representative German Health Interview and Examination Survey for Children and Adolescents (KiGGS study). The results of model comparisons (broadband scale vs. narrowband scales) did not support the superiority of the broadband scales with regard to the prediction of child and adolescent outcomes. There is no benefit from subsuming narrowband scales (5-factor structure) into broadband scales (3-factor structure). The application of narrowband scales, providing a more differentiated picture of students' academic and social situation, was more appropriate for predictive purposes. For the purpose of identifying students at risk of struggling in educational contexts, using the set of narrowband dimensions of behavior seems to be more suitable. ¬© 2020 Kulawiak et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Extrinsic noise driven phenotype switching in a self-regulating gene
Creators: name: Assaf, Michael
name: Roberts, Elijah
name: Luthey-Schulten, Zaida
name: Goldenfeld, Nigel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Due to inherent noise in intracellular networks cellular decisions can be random, so genetically identical cells can display different phenotypic behavior even in identical environments. Most previous work in understanding the decision-making process has focused on the role of intrinsic noise in these systems. Yet, especially in the high copy-number regime, extrinsic noise has been shown to be much more significant. Here, using a prototypical example of a bistable self-regulating gene model, we develop a theoretical framework describing the combined effect of intrinsic and extrinsic noise on the dynamics of stochastic genetic switches. Employing our theory and Monte Carlo simulations, we show that extrinsic noise not only significantly alters the lifetimes of the phenotypic states, but can induce bistability in unexpected regions of parameter space, and may fundamentally change the escape mechanism. These results have implications for interpreting experimentally observed heterogeneity in cellular populations and for stochastic modeling of cellular decision processes.
description: 5 pages, 4 figures
Determination Of The Level Of Automation For Additive Manufacturing Process Chains
Creators: name: Horstkotte, Rainer
name: Bruning, Benedikt
name: Prümmer, Marcel
name: Arntz, Kristian
name: Bergs, Thomas
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Laser Powder Bed Fusion
subject: L-PBF
subject: Automation
subject: level of automation
subject: process chain
subject: Additive Manufacturing
subject: AM
subject: post-processing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Industrial manufacturing is confronted with increased cost pressure due to international competition. The use of automation solutions can help to optimally exploit existing potentials and react to market competitors. In particular, increased productivity and shorter cycle times lead to reduced costs and increased capabilities. New manufacturing technologies can also help to achieve an advantage over market competitors. In recent years, additive manufacturing technologies in particular have gained in importance. Laser Powder Bed Fusion (L-PBF) is an additive manufacturing (AM) technology that enables the production of highly complex and individualized metal components. A significant disadvantage of L-PBF is the required post-processing of additive manufactured parts, which is necessary to remove auxiliary structures, separate the workpieces from the substrate plate and obtain high precision as well as low surface roughness. Automation of these post-processes is a crucial factor for increasing productivity and thus for further industrialization of L-PBF. In order to exploit this potential optimally, the level of automation has to be determined. In this paper, a methodology is presented that enables the determination of the level of automation for the additive process chain with L-BPF. The focus is on evaluating the level of automation of individual manufacturing technologies due to consideration of technology-specific requirements and characteristics. The scope of the analysis is not limited to technologies; handling processes are also taken into account. A differentiated evaluation of the level of automation is enabled by the definition of technology-specific and cross-technology sub-tasks.
How to regulate vehicle access in urban areas: Guidance from the EU ReVeAL project for cities putting in place access regulations
Creators: name: Sadler, Lucy
name: Møller-Kristensen, Julie Schack
name: Chiffi, Cosimo
name: Brambilla, Marco
name: Uccelli, Ivan
name: Pechin, Sofia
name: Guzman-Vargas, Daniel
name: Fransen, Koos
name: Callizo, María José Rojo
Publisher: name: Zenodo
Year: 2023
Subjects: urban vehicle access regulations, UVAR, liveability, equity, access regulations, low-emission zone, zero-emission zone

description: This guidance document is part of the ReVeAL toolkit, supporting cities developing good practice urban vehicle access regulations (UVARs). The guidance covers aspects that are common to many UVAR building blocks. These cross-cutting themes include governance, stakeholder involvement, complementary measures, user needs, public acceptance, communication, financing, and equity. It also covers monitoring and assessment, and some more detailed aspects in relation to exemptions and permits, camera enforcement, geofencing and intelligent speed assistance. This guidance is also available at: Guidance » Civitas ReVeAL (civitas-reveal.eu).
⚘ Opening Ceremony ☀ IO2S DEELY
Creators: name: Baker, Baranna
name: Kemple, Brian
name: Deely, Brooke Williams
name: Seif, Farouk Y.
name: Malekzadeh, Hamid
name: Merkulova, Inna Gennadievna
name: Pelkey, Jamin
name: DeChicchis, Joseph
name: Kull, Kalevi
name: Carvalho, Mário Santiago de
name: Minerd, Matthew
name: Hipps O.S.B., Norman
name: Lavrenova, Olga
name: Cobley, Paul
name: Troutman, Tim
name: Passarini, William
name: Nöth, Winfried
name: Nikitenko, Yulia
Publisher: name: Instituto de Estudos Filosóficos
Year: 2022
Subjects: Deely
John Deely
Semiotics

description: Take a seat at the IO2S DEELY opening ceremony and enjoy the celebration of the life and legacy of one of the most significant minds shaping our semiotic age, Dr. John Deely.

This ceremony, chaired by Tim Troutman (Lyceum Institute) and Yulia Nikitenko (Institute for Philosophical Studies), is part of the activities of the 2022 International Open Seminar on Semiotics: a Tribute to John Deely on the Fifth Anniversary of His Passing, cooperatively organized by the Institute for Philosophical Studies of the Faculty of Arts and Humanities of the University of Coimbra, the Lyceum Institute, the Deely Project, Saint Vincent College, the Iranian Society for Phenomenology at the Iranian Political Science Association, the International Association for Semiotics of Space and Time, the Institute for Scientific Information on Social Sciences of the Russian Academy of Sciences, the Semiotic Society of America, the American Maritain Association, the International Association for Semiotic Studies, the International Society for Biosemiotic Studies, the International Center for Semiotics and Intercultural Dialogue, Moscow State Academic University for the Humanities and the Mansarda Acesa with the support of the FCT - Foundation for Science and Technology, I.P., of the Ministry of Science, Technology and Higher Education of the Government of Portugal under the UID/FIL/00010/2020 project.

***

Homepage: https://www.uc.pt/fluc/uidief/io2s

Auditorium: https://www.uc.pt/fluc/uidief/io2s/auditorium

***

Technical support was assured by Robert Junqueira.

The cover image for the video was designed by Zahra Soltani.
Three-particle scattering amplitudes from a finite volume formalism
Creators: name: Briceno, Raul A.
name: Davoudi, Zohreh
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a quantization condition for the spectrum of a system composed of three identical bosons in a finite volume with periodic boundary conditions. This condition gives a relation between the finite volume spectrum and infinite volume scattering amplitudes. The quantization condition presented is an integral equation that in general must be solved numerically. However, for systems with an attractive two-body force that supports a two-body bound-state, a diboson, and for energies below the diboson breakup, the quantization condition reduces to the well-known Luscher formula with exponential corrections in volume that scale with the diboson binding momentum. To accurately determine infinite volume phase shifts, it is necessary to extrapolate the phase shifts obtained from the Luscher formula for the boson-diboson system to the infinite volume limit. For energies above the breakup threshold, or for systems with no two-body bound-state (with only scattering states and resonances) the Luscher formula gets power-law volume corrections and consequently fails to describe the three-particle system. These corrections are nonperturbatively included in the quantization condition presented.
description: 15 pages, 8 figures
Ultra-high-resolution ion mobility spectrometry : current instrumentation, limitations, and future developments
Creators: name: Kirk, Ansgar T.
name: Bohnhorst, Alexander
name: Raddatz, Christian-Robert
name: Allers, Maria
name: Zimmermann, Stefan
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2019
Subjects: subject: ion mobility spectrometers (IMS)
subject: chemical warfare agents
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: With recent advances in ionization sources and instrumentation, ion mobility spectrometers (IMS) have transformed from a detector for chemical warfare agents and explosives to a widely used tool in analytical and bioanalytical applications. This increasing measurement task complexity requires higher and higher analytical performance and especially ultra-high resolution. In this review, we will discuss the currently used ion mobility spectrometers able to reach such ultra-high resolution, defined here as a resolving power greater than 200. These instruments are drift tube IMS, traveling wave IMS, trapped IMS, and field asymmetric or differential IMS. The basic operating principles and the resulting effects of experimental parameters on resolving power are explained and compared between the different instruments. This allows understanding the current limitations of resolving power and how ion mobility spectrometers may progress in the future.
Zinc oxide nanoparticles: in silico characterization and toxicological risk assessment
Creators: name: Cuesta, Nuria Aguilar
name: Azcona, Sara Rozas
name: Roa, Elisabeth Escamilla
name: Rumbo-Lorenzo, Carlos
name: Martin, Sonia Martel
name: García, Rocio Barros
name: Villa, Pedro Angel Marcos
name: Arreba, Alfredo Bol
name: Martinez, Santiago Aparicio
Publisher: name: Zenodo
Year: 2023

description: The aim of this theoretical study is to characterize the relationship between the structure and the physicochemical properties of zinc oxide nanoparticles (ZnO NPs) and Mn doped ZnO NPs to assess the toxicological impact of these materials. In order to do so, a multiscale modelling approach is applied. Different nanoparticles – in terms of geometry, aggregation and size – are characterized by their electronic properties using quantum mechanics methodologies (i.e., DFT, Density Functional Theory). To evaluate the toxicology impact of ZnO NPs in human health safety, the interaction between the material and biological target systems are modelled. Applying classical molecular dynamics methodologies, the interaction between a set of selected human proteins with the NPs are tested. Based on the Adverse Outcome Pathway (AOP) concept, identifying the Molecular Initiating Event (MIE) – the first event that triggers the myriad of events that cause the adverse outcome – allow to develop Safe by Design materials. In this scheme, the interaction of the studied nanoparticles with model human cell membranes is proposed as a pivotal MIE, which is studied through Molecular Dynamics Simulations for different ZnO NPs in terms of shape, size and concentration. The interaction between the NPs and model cell membranes is quantified in terms of membrane nanodescriptors which are scaled up through Machine Learning–based methods for developing simple and predictive tools.
 This work is included as a case study for the Horizon - DIAGONAL project which aims to develop Sustainable and Safe By Design (SSbDs) materials, process and technologies to guarantee the long-term nanosafety for Multicomponent Nanomaterials (MCNMs) and High Aspect Ratio Nanoparticles (HARNs) in their whole life cycle
Some Berwald Spaces of Non-positive flag Curvature
Creators: name: Moghaddam, H. R. Salimi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 22E60, 53C60, 53C30

description: In this paper by using left invariant Riemannian metrics on some 3-dimensional Lie groups we construct some complete non-Riemannian Berwald spaces of non-positive flag curvature and several families of geodesically complete locally Minkowskian spaces of zero constant flag curvature.
title: Negative Political Advertising, Negative News Coverage: A Connection?
Creators: name: Cook, Karrie
Publisher: name: Utah State University
Year: 1994

description: Although negative advertising and negative news coverage of candidates is not a new phenomenon there is a perception among the news media that the number of negative ads has increased in the past decade (1984-1992), especially in the past five years. This perception has led reporters to increase their coverage and scrutiny of such ads, while at the same time showing them repeatedly on news casts. There are many reasons given as to why the number of negative ads and negative election reports may have increased, including more consulting companies, changes in election process in the 1960s, independent political groups spending more money on ads and simply because they may actually work.
In-in formalism on tunneling background: multi-dimensional quantum mechanics
Creators: name: Sugimura, Kazuyuki
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We reformulate quantum tunneling in a multi-dimensional system where the tunneling sector is non-linearly coupled to oscillators. The WKB wave function is explicitly constructed under the assumption that the system was in the ground state before tunneling. We find that the quantum state after tunneling can be expressed in the language of the conventional in-in formalism. Some implications of the result to cosmology are discussed.
description: 13 pages, 3 figures
Negative Reactant Ion Formation in High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS)
Creators: name: Allers, Maria
name: Kirk, Ansgar T.
name: Timke, Bennet
name: Erdogdu, Duygu
name: Wissorf, Walter
name: Benter, Thorsten
name: Zimmermann, Stefan
Publisher: name: Washington, DC : ACS Publications
Year: 2020
Subjects: subject: negative reactant ion formation
subject: corona discharge ionization
subject: ion mobility spectrometry
subject: high kinetic energy ion mobility spectrometry
subject: HiKE-IMS
subject: IMS
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Due to the operation at background pressures between 10-40 mbar and high reduced electric field strengths of up to 120 Td, the ion–molecule reactions in High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) differ from those in classical ambient pressure IMS. In the positive ion polarity mode, the reactant ions H+(H2O)n, O2+(H2O)n, and NO+(H2O)n are observed in the HiKE-IMS. The relative abundances of these reactant ion species significantly depend on the reduced electric field strength in the reaction region, the operating pressure, and the water concentration in the reaction region. In this work, the formation of negative reactant ions in HiKE-IMS is investigated in detail. On the basis of kinetic and thermodynamic data from the literature, the processes resulting in the formation of negative reactant ions are kinetically modeled. To verify the model, we present measurements of the negative reactant ion population in the HiKE-IMS and its dependence on the reduced electric field strength as well as the water and carbon dioxide concentrations in the reaction region. The ion species underlying individual peaks in the ion mobility spectrum are identified by coupling the HiKE-IMS to a time-of-flight mass spectrometer (TOF-MS) using a simple gated interface that enables the transfer of selected peaks of the ion mobility spectrum into the TOF-MS. Both the theoretical model as well as the experimental data suggest the predominant generation of the oxygen-based ions O–, OH–, O2–, and O3– in purified air containing 70 ppmv of water and 30 ppmv of carbon dioxide. Additionally, small amounts of NO2– and CO3– are observed. Their relative abundances highly depend on the reduced electric field strength as well as the water and carbon dioxide concentration. An increase of the water concentration in the reaction region results in the generation of OH– ions, whereas increasing the carbon dioxide concentration favors the generation of CO3– ions, as expected.
title: Small Business Advising Highpoint Roofing, LLC.
Creators: name: Hull, Angie Newman
Publisher: name: Utah State University
Year: 1996

description: Highpoint Roofing is a new sub-contracting business that specializes in roofing new homes and re-roofing older homes. During the short time they have been in business there has been evident success. The owners would like to continue the success of the company and plan to do so through improving their financial status, being aware of market fluctuations, cutting-costs, expanding, and creating and following a budget.
Hepatica
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. Hepatica L. (Hepccticanobilis Schreber, H. triloba Chaix) Cat. 3 und 420. Verbreitet.Bis 2300m: ob Visperterminen (Beauverd); andere hohe Vorkommnisse sind:ob Chandolin (Anniviers), über 2200m (Bernoulli); ob Zinal, 2130 m (Marietan); Valsorey, 2050m (Guyot): unter dem Hermättje bei Zermatt, 2000 m (Thellung). Forma rotundata (Schur) - 3: Mont-Chemin (Closuit). Forma multiloba C.Hartman (var.rhaetica Brügger) - 2:Zwischen Font de la Marge und La Muraz (Terretaz und M. Mutrux). Forma marmorata Th. Moore - 3: Martigny-Chemin-Charrat (Closuit); Sitten-La Vernaz (Be- cherer); Chippis-Chalais (idem). - 3a: Gondo(Becherer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: The Emotional Attributes Questionnaire: Self- and Other-Reports of Guilt and Shame
Creators: name: Eyre, Heidi L.
Publisher: name: Utah State University
Year: 1997

description: Shame and guilt are considered to be important emotions for empirical study for a variety of reasons. Developmental psychologists are interested in the emergence of shame and guilt as they relate to the child's understanding of societal and familial expectations/norms and the subsequent development of conscience (Zahn-Waxler & Kochanska, 1990). Social psychologists study how guilt and shame are used to create power differentials and restore equity to relationships (Baumeister, Stillwell, & Heatherton, 1994). Finally, clinicians have long thought shame and guilt to be involved in the development of disorders such as anxiety and depression (H.B. Lewis, 1971). However, those within the clinical realm have often used the words "shame" and "guilt" interchangeably, and even the DSM-IV (American Psychiatric Association, 1994) fails to draw a clear distinction between the two. Because of the lack of conceptual clarity, there is is also confusion regarding whether shame and guilt are distinct precursors to different disorders.
In vitro assessment of skin irritation potential of graphene based materials using reconstructed human epidermis (RhE)
Creators: name: NATALIA FERNANDEZ PAMPIN
name: JUAN ANTONIO TAMAYO RAMOS
name: DASGUPTA, NANDITA
name: VIVAS, DALIA DE LA FUENTE
name: GARCIA, ROCIO BARROS
name: MARTIN, SONIA MARTEL
name: CUADRADO, LAURA GOMEZ
name: LORENZO, CARLOS RUMBO
Publisher: name: Zenodo
Year: 2023

description: Graphene-based materials (GBMs) have attracted a lot of attention during the last years due to their extraordinary physicochemical properties. These materials are employed in a wide range of fields, including electronic and biomedical applications1,2,3. From a safety perspective, the major risk for human health associated to these materials is currently related to occupational exposure4, being the inhalation and dermal contact the most relevant routes of exposure to GBMs5. In fact, around 90 % of skin diseases associated with occupational settings are represented by irritant and allergic contact dermatitis6. However, the existing information about cutaneous toxicity of GBMs is scarce. Considering the possible risks in the work environment due to the skin irritation potential of these materials, the present study investigated the cutaneous toxicity of a group of GBMs, including small flakes graphene (SFG), large flakes graphene (LFG) and graphene nanoplatelets (GNplatelets). The inclusion of New Approach Methods (NAMs) for skin sensitization into Organization for Economic Co-operation and Development (OECD) has proved to be a good replacement of animal models. This methodology simulates the human exposure by direct epidermal contact to chemicals. Therefore, to evaluate the skin toxicity, the in vitro EpiDerm Skin Irritation Test (EPI-200-SIT) was employed. Following the OECD Test Nº 439 to determine in vitro skin irritation on reconstructed human epidermis (RhE), it was observed that none of the GBMs caused damage to the tissues. According to EU and Globally Harmonized System of Classification and Labelling Chemicals, GHS, (R38 / Category 2 or no label), an irritant is predicted if the viability of the tissues exposed to the test substance is reduced below 50 % of the viability of the controls. In the case of these GBMs, these materials did not reduce the tissues viability, so they can be considered as non-irritant in the tested conditions. These results provide new insights about the skin irritation potential of GBMs with different properties, demonstrating that the hazard assessment using human in vitro models is a critical aspect to increase the knowledge on their potential impact upon human health.
 This study is part of the project DIAGONAL (H2020, NMBP-16-2020, Grant Agreement no 953152), which aims to address existing gaps at risk assessment, risk management and risk governance levels providing new knowledge on multicomponent nanomaterials and high aspect ratio nanomaterials.
Resource management for model learning at entity level
Creators: name: Beyer, Christian
name: Unnikrishnan, Vishnu
name: Brüggemann, Robert
name: Toulouse, Vincent
name: Omar, Hafez Kader
name: Ntoutsi, Eirini
name: Spiliopoulou, Myra
Publisher: name: Berlin : Springer
Year: 2020
Subjects: subject: Data streams
subject: Error margins
subject: Future applications
subject: Health care application
subject: Model learning
subject: Prediction quality
subject: Primary memory
subject: Resource management
subject: Secondary memory
subject: Learning systems
subject: Document prediction
subject: Entity-centric learning
subject: Memory reduction
subject: Stream classification
subject: Text ignorant models
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Many current and future applications plan to provide entity-specific predictions. These range from individualized healthcare applications to user-specific purchase recommendations. In our previous stream-based work on Amazon review data, we could show that error-weighted ensembles that combine entity-centric classifiers, which are only trained on reviews of one particular product (entity), and entity-ignorant classifiers, which are trained on all reviews irrespective of the product, can improve prediction quality. This came at the cost of storing multiple entity-centric models in primary memory, many of which would never be used again as their entities would not receive future instances in the stream. To overcome this drawback and make entity-centric learning viable in these scenarios, we investigated two different methods of reducing the primary memory requirement of our entity-centric approach. Our first method uses the lossy counting algorithm for data streams to identify entities whose instances make up a certain percentage of the total data stream within an error-margin. We then store all models which do not fulfil this requirement in secondary memory, from which they can be retrieved in case future instances belonging to them should arrive later in the stream. The second method replaces entity-centric models with a much more naive model which only stores the past labels and predicts the majority label seen so far. We applied our methods on the previously used Amazon data sets which contained up to 1.4M reviews and added two subsets of the Yelp data set which contain up to 4.2M reviews. Both methods were successful in reducing the primary memory requirements while still outperforming an entity-ignorant model. ¬© 2020, The Author(s).
Low-cost, in-liquid measuring system using a novel compact oscillation circuit and quartz-crystal microbalances (QCMs) as a versatile biosensor platform
Creators: name: Beißner, S.
name: Thies, J.-W.
name: Bechthold, C.
name: Kuhn, P.
name: Thürmann, B.
name: Dübel, S.
name: Dietzel, A.
Publisher: name: Göttingen : Copernicus GmbH
Year: 2017
Subjects: subject: Quartz-crystal microbalances
subject: QCM
subject: C-reactive protein (CRP)
subject: sensor
subject: Dewey Decimal Classification::600 | Technik

description: Quartz-crystal microbalances (QCMs) are commercially available mass sensors which mainly consist of a quartz resonator that oscillates at a characteristic frequency, which shifts when mass changes due to surface binding of molecules. In addition to mass changes, the viscosity of gases or liquids in contact with the sensor also shifts the resonance but also influences the quality factor (Q-factor). Typical biosensor applications demand operation in liquid environments leading to viscous damping strongly lowering Q-factors. For obtaining reliable measurements in liquid environments, excellent resonator control and signal processing are essential but standard resonator circuits like the Pierce and Colpitts oscillator fail to establish stable resonances. Here we present a low-cost, compact and robust oscillator circuit comprising of state-of-the-art commercially available surface-mount technology components which stimulates the QCMs oscillation, while it also establishes a control loop regulating the applied voltage. Thereby an increased energy dissipation by strong viscous damping in liquid solutions can be compensated and oscillations are stabilized. The presented circuit is suitable to be used in compact biosensor systems using custom-made miniaturized QCMs in microfluidic environments. As a proof of concept we used this circuit in combination with a customized microfabricated QCM in a microfluidic environment to measure the concentration of C-reactive protein (CRP) in buffer (PBS) down to concentrations as low as 5 μg mL-1. © 2017 Author(s).
title: Grazing Systems as Management Tools to Meet Multiple Objectives
Creators: name: Hadley, Lacy Nicole
Publisher: name: Utah State University
Year: 1997

description: Grazing systems have in the past been developed to increase or maintain livestock production without degrading the land (Archer and Smeins, 1991). A grazing system is a "specialization of grazing management which defines the periods of grazing and non-grazing" (Jacoby, 1989). However, these systems can be developed for other uses besides just livestock. Grazing systems can be used as management tools by manipulating vegetation in specific directions to meet desired objectives. This is done by the livestock themselves because they act as "ecosystem regulators" by having a direct impact on the vegetation (Holechek et al., 1995). Livestock can alter the species composition of the vegetation, improve the nutritive quality of forage, increase the productivity of certain species, and increase the structural diversity of habitat (Heady, 1994). By affecting the structural diversity, livestock also have an impact on wildlife populations (Fleischner, 1994). The object of many grazing plans is to take livestock impacts into account and coordinate the needs of domestic animals with the needs of the wildlife (Heady and Child, 1994). Prolonged heavy grazing reduces the diversity of wildlife, but so does no grazing. However, specialized grazing systems have benefited wildlife - especially waterfowl (Heady, 1994).
Gerstenhaber Structure on Hochschild Cohomology of the Fomin-Kirillov Algebra on 3 Generators
Creators: name: Herscovich, Estanislao
name: Li, Ziling
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2022

description: The goal of this article is to compute the Gerstenhaber bracket of the Hochschild cohomology of the Fomin-Kirillov algebra on three generators over a field of characteristic different from $2$ and $3$. This is in part based on a general method we introduce to easily compute the Gerstenhaber bracket between elements of $\operatorname{HH}^{0}(A)$ and elements of $\operatorname{HH}^{n}(A)$ for $n \in \mathbb{N}_{0}$, the method by M. Suárez-Álvarez in [Su\'{a}rez-\'{A}lvarez, Mariano, A little bit of extra functoriality for Ext and the computation of the Gerstenhaber bracket, J. Pure Appl. Algebra 221 (2017), no. 8, 1981-1998] to calculate the Gerstenhaber bracket between elements of $\operatorname{HH}^{1}(A)$ and elements of $\operatorname{HH}^{n}(A)$ for any $n \in \mathbb{N}_{0}$, as well as an elementary result that allows to compute the remaining brackets from the previous ones. We also show that the Gerstenhaber bracket of $\operatorname{HH}^{\bullet}(A)$ is not induced by any Batalin-Vilkovisky generator.
description: DOCUMENTA MATHEMATICA, Vol 27 (2022), p. 1773-1804
Canonical and phantom scalar fields as an interaction of two perfect fluids
Creators: name: Cataldo, Mauricio
name: Arevalo, Fabiola
name: Mella, Patricio
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article we investigate and develop specific aspects of Friedmann-Robertson-Walker (FRW) scalar field cosmologies related to the interpretation that canonical and phantom scalar field sources may be interpreted as cosmological configurations with a mixture of two interacting barotropic perfect fluids: a matter component $ρ_1(t)$ with a stiff equation of state ($p_1=ρ_1$), and an "effective vacuum energy" $ρ_2(t)$ with a cosmological constant equation of state ($p_2=-ρ_2$). An important characteristic of this alternative equivalent formulation in the framework of interacting cosmologies is that it gives, by choosing a suitable form of the interacting term $Q$, an approach for obtaining exact and numerical solutions. The choice of $Q$ merely determines a specific scalar field with its potential, thus allowing to generate closed, open and flat FRW scalar field cosmologies.
description: 9 pages, accepted for publication in Astrophys Space Sci
ADVAGEN: D6.1. Mechanistic Process Model
Creators: name: Steckermeier, Dominik
name: Gerstenberg, Jessica
Publisher: name: ADVAGEN Project
Year: 2024

description: Parameters from the production process of electrodes will be correlated to the electrode properties and the resulting performance. Two main factors are identified describing the properties if intermediate products in laboratory-scale processes, that need to be taken into account within the scale-up to industrial size processing: The particle size ratio between the electrolyte and active material and the carbon black size distribution.

A recommendation for the particle size of the active material used in the pilot-scale and a suitable adjustment of the electrolyte particle size are described to increase the electrochemical performance of the catholyte. The importance of the elastic spring-back with regard to the long range conductive pathways within the cathode microstructure is outlined. This approach gives a more general view on the connection between processing and production to enable a scale-up of the production process.
Converter Lifetime Assessment for Doubly-Fed Induction Generators Considering Derating Control Strategies at Low Rotor Frequencies
Creators: name: Morisse, Marcel
name: Bartschat, Arne
name: Wenske, Jan
name: Mertens, Axel
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2016
Subjects: subject: wind turbine
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In this paper, various control strategies around the synchronous operating point with the aim to reduce the thermal loading of the rotor-side converter in wind turbines equipped with doubly-fed induction generators are investigated regarding their assets and drawbacks. It is shown that there are various possibilities to prolong the lifetime expectation of the converter regarding its thermal stress by implementing these control strategies. However, every control measure requires a careful design process or a slight adjustment of the system to ensure a positive effect on the overall behaviour of the wind turbine.
Modelling dielectric and magnetic properties of ferroconcrete
Creators: name: Frenzel, T.
name: Koch, M.
Publisher: name: Göttingen : Copernicus GmbH
Year: 2008
Subjects: subject: Complex permittivity
subject: Dielectric and magnetic properties
subject: Electromagnetic field analysis
subject: Frequency ranges
subject: Method of moments (MOM)
subject: Reflection and transmission
subject: Shielding effectiveness
subject: Electromagnetic fields
subject: Method of moments
subject: Dewey Decimal Classification::600 | Technik

description: This contribution discusses the modelling and parameterization of dielectric and magnetic properties of ferroconcrete by using numerical electromagnetic field analysis software. The software is based on the Method of Moments (MoM). The shielding effectiveness (SE) of the ferroconcrete DUT was already measured in a study by order of the government. According to these results, the ferroconcrete DUT is modelled and calculated. Therefore the DUT is subdivided into two parts. The first part represents the reinforcement mesh; the second part represents the lossy concrete with complex permittivity. Afterwards, the reflection and transmission properties of numerical analysed building materials are validated and compared with the measurement results in a frequency range of 30-1000 MHz.
Matching the termination of radiating non-uniform transmission-lines
Creators: name: Rambousky, R.
name: Nitsch, J.
name: Garbe, Heyno
Publisher: name: Göttingen : Copernicus GmbH
Year: 2013
Subjects: subject: Characteristic impedance
subject: Concentrated load
subject: Cooperative process
subject: Frequency dependent
subject: Line parameters
subject: Local effects
subject: Radiated power
subject: Transmission-line
subject: Single wire transmission
subject: Electrical engineering
subject: Electronics engineering
subject: Transmission line theory
subject: Electric lines
subject: Dewey Decimal Classification::600 | Technik

description: In this contribution a concept of matching the termination of radiating non-uniform transmission-lines is proposed. Using Transmission-Line Super Theory, position and frequency dependent line parameters can be obtained. Therefore, a characteristic impedance can be determined which is also position and frequency dependent. For a single wire transmission-line it could be shown that the maximum value of that characteristic impedance is an optimal termination in the sense of minimizing the variation of the current on the line. This indicates that matching is not a local effect at the position of the concentrated load but a cooperative process including the whole non-uniform transmission-line. In addition this choice of termination minimizes the variation of the radiated power over frequency.
Randers Metrics of Berwald type on 4-dimensional hypercomplex Lie groups
Creators: name: Moghaddam, H. R. Salimi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15, 58B20, 53B35, 53C60

description: In the present paper we study Randers metics of Berwald type on simply connected 4-dimensional real Lie groups admitting invariant hypercomplex structure. On these spaces, the Randers metrics arising from invariant hyper-Hermitian metrics are considered. Then we give explicit formulas for computing flag curvature of these metrics. By this study we construct two 4-dimensional Berwald spaces, one of them has non-negative flag curvature and the other one has non-positive flag curvature.
Implementation of a digital evaluation platform to analyze bifurcation based nonlinear amplifiers
Creators: name: Feldkord, Sven
name: Reit, Marco
name: Mathis, Wolfgang
Publisher: name: Göttingen : Copernicus GmbH
Year: 2016
Subjects: subject: Amplifiers (electronic)
subject: Audition
subject: Bifurcation (mathematics)
subject: Mammals
subject: Andronov-Hopf bifurcation
subject: Control interfaces
subject: DSP implementation
subject: Evaluation platforms
subject: Flexible framework
subject: Input-output behavior
subject: Neimark-Sacker bifurcation
subject: Nonlinear amplifier
subject: Hop
subject: Dewey Decimal Classification::600 | Technik

description: Recently, nonlinear amplifiers based on the supercritical Andronov–Hopf bifurcation have become a focus of attention, especially in the modeling of the mammalian hearing organ. In general, to gain deeper insights in the input-output behavior, the analysis of bifurcation based amplifiers requires a flexible framework to exchange equations and adjust certain parameters. A DSP implementation is presented which is capable to analyze various amplifier systems. Amplifiers based on the Andronov–Hopf and Neimark–Sacker bifurcations are implemented and compared exemplarily. It is shown that the Neimark–Sacker system remarkably outperforms the Andronov–Hopf amplifier regarding the CPU usage. Nevertheless, both show a similar input-output behavior over a wide parameter range. Combined with an USB-based control interface connected to a PC, the digital framework provides a powerful instrument to analyze bifurcation based amplifiers.
title: AutorInnen dieses Heftes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2016

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 38, Nr. 1 (2010): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Anfänge der Deutschen Gesellschaft für Coaching (DGfC) in den Jahren 2000 – 2002
Creators: name: Mähler, Andreas
Publisher: name: Albert-Ludwigs-Universität Freiburg
Year: 2023

description: Die Deutsche Gesellschaft für Coaching (DGfC) ist mit über 750 Mitgliedern einer der großen Coachingverbände im deutschsprachigen Raum.

Der Autor beschreibt die Gründungsphase des Vereins in den Jahren 2000 - 2002.

Als Gast der Jubiläumsfachtagung des Verbandes, die vom 10.-12. März 2003 in Siegburg stattfand, berichtete er von den Anfängen des Coachingverbands.

Coronabedingt wurde das 20-jährige Jubiläum mit einem Jahr Verspätung gefeiert.

Die Homepage des Verbandes https://coaching-dgfc.de (Stand: 9. Februar 2025) beschreibt Coaching im Sinne der DGfC als

 eine professionelle, flexible u. nachhaltige Form der Beratung für Einzelpersonen/Teams/Gruppen
 kreativ und systemisch orientiert
 unterstützend dabei, Ressourcen zu entfalten, Handlungsmöglichkeiten zu erweitern,
     Ziele zu erreichen, Probleme zu bearbeiten, Qualität zu verbessern und zu sichern
 hilfreich, Grenzen zu erkennen und ggf. zu verändern sowie Alternativen zu entdecken
 Beitrag zu Reflexion, Stabilisierung und Bewältigung in Entwicklungsprozessen
 Reflexion von Hintergründen und vertiefte Einsichten in Kontexte beruflichen Handelns
 Einbeziehung der persönlichen Situation.
title: Bildnachweise
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2016

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 38, Nr. 1 (2010): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Saharan mineral dust outbreaks observed over the North Atlantic island of La Palma in summertime between 1984 and 2012
Creators: name: Laken, Benjamin A.
name: Parviainen, Hannu
name: Pallé, Enric
name: Shahbaz, Tariq
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We estimate the frequency of Saharan mineral dust outbreak events observed over the North Atlantic island of La Palma based on in situ nightly atmospheric extinction measurements recorded almost continuously since 1984 by the Carlsberg Meridian Telescope at the Roque de los Muchachos observatory. The outbreak frequency shows a well-defined seasonal peak in the months of July to September, during which time the occurrence of Saharan dust events (SDEs) is approximately 28\pm6%. We find considerable year-to-year variability in the summertime SDEs frequency, observing a steady reduction between 1984 and 1997, followed by a period of relative mean stability from 1999 to 2012. We investigated changes in the atmospheric extinction of the SDEs as an indicator of strength of the episodes and found that this parameter approximately follows the SDE frequency, however, instrumental limitations prevented us from deriving precise conclusions regarding their long-term changes. A lagged correlation analysis between SDE properties and the El Niño Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), and Sahel rainfall index (SRI) was performed. We found that 55\pm4% of the year-to-year variations in July-September SDE frequency may be reproduced by a lagged relationship to the NAO conditions during the preceding October-December period, and 45\pm4% may be reproduced by a negative correlation to the SRI during the preceding February-April period. Based on these relationships it may be possible to obtain an approximate indication of the strength of the upcoming summertime dust season over the North Atlantic around half a year in advance.
description: 27 pages, 9 figures, Published in Quarterly Journal of the Royal Meteorological Society
title: Tendenzen, Probleme, Chancen. Editorial
Creators: name: Felfe, Robert
name: Weddigen, Tristan
Publisher: name: University Library Heidelberg
Year: 2016

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 38, Nr. 3 (2010): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4