cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Contributions to data analytics techniques with applications in forecasting, visualization and decision support
Creators: name: Eilers, Dennis
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2018
Subjects: subject: Bestärkendes Lernen
subject: Künstliche Neuronale Netze
subject: Sentiment Analyse
subject: Leasing
subject: Gebrauchtfahrzeuge
subject: Feature Engineering
subject: Domain Knowledge
subject: Visualisierung
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: This cumulative dissertation summarizes and critically discusses seven peer-reviewed publications where I was involved as a co-author. All publications contribute to data analytics techniques. The dissertation consists of four main sections. (1) Machine Leaning in Finance: In this section a Decision Support Algorithm based in Reinforcement Learning is introduced which filters rule-based trading decisions. We contribute to the literature by describing the implementation of the algorithm. We also provide empirical evidence of financial market anomalies. (2) Mining Customer Reviews: Opinions from customers about certain products are more and more expressed on social media platforms. Here we provide the first study which analyses YouTube comments as a data source for an aspect-based Sentiment Analysis. We also contribute to the literature by proposing a filtering method based on Google Trends which sorts product aspects according to their relevance for the customers. (3) Forecasting Resale Prices of Used Cars: In this section we show how to efficiently forecast resale prices of used cars with Artificial Neural Networks. We provide lessons learned about long-term forecasts. We also provide insights in the importance of certain independent factors which determine the resale price. (4) Visual Model Evaluation: The research in this section is mainly driven by the question of how to better incorporate human domain knowledge in data science. We develop a visualization technique based on heat maps which provides a more intuitive view on errors of a machine learning model. The visualization technique allows domain experts to discuss the results of machine learning models with data science experts on the same level of complexity.
Scaling Properties of Paths on Graphs
Creators: name: Edwards, R.
name: Foxall, E.
name: Perkins, T. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 15B48, 60J10

description: Let $G$ be a directed graph on finitely many vertices and edges, and assign a positive weight to each edge on $G$. Fix vertices $u$ and $v$ and consider the set of paths that start at $u$ and end at $v$, self-intersecting in any number of places along the way. For each path, sum the weights of its edges, and then list the path weights in increasing order. The asymptotic behaviour of this sequence is described, in terms of the structure and type of strongly connected components on the graph. As a special case, for a Markov chain the asymptotic probability of paths obeys either a power law scaling or a weaker type of scaling, depending on the structure of the transition matrix. This generalizes previous work by Mandelbrot and others, who established asymptotic power law scaling for special classes of Markov chains.
description: 23 pages, 2 figures
Performance Analysis of RIS-Aided NOMA Networks in $α-μ$ & $κ-μ$ Generalized Fading Channel
Creators: name: Kattekola, Aaditya Prakash
name: Dontha, Sanjana
name: Sundru, Anuradha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: For forthcoming 5G networks, Non-Orthogonal Multiple Access (NOMA) is a very promising techniques. and in today's world, Line of Sight communication is becoming increasingly harder to achieve. Hence, technologies like Reconfigurable Intelligent Surfaces (RIS) emerge. RIS-aided NOMA networks is a widely researched implementation of RIS. The environment where these networks are employed are non-homogeneous & non-linear in nature. The effectiveness of these systems must thus be evaluated using generalized fading channels. In this paper, the performance of a RIS-aided NOMA is compared with conventional NOMA in alpha-mu and kappa-mu channels. This paper also shows that the well-known fading distribution are special cases of these generalized fading channels, both analytically and through simulation.
description: Reconfigurable Intelligent Surfaces, Non-Orthogonal Multiple Access, Generalized Fading Channels, 5G & Beyond 5G Networks
Minimal Entangled States and Modular Matrix for Fractional Quantum Hall Effect in Topological Flat Bands
Creators: name: Zhu, W.
name: Sheng, D. N.
name: Haldane, F. D. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We perform an exact diagonalization study of the topological order in topological flat band models through calculating entanglement entropy and spectra of low energy states. We identify multiple independent minimal entangled states, which form a set of orthogonal basis states for the ground-state manifold. We extract the modular transformation matrices S (U) which contains the information of mutual (self) statistics, quantum dimensions and fusion rule of quasi-particles. Moreover, we demonstrate that these matrices are robust and universal in the whole topological phase against different perturbations until the quantum phase transition takes place.
Influence of an inhomogeneous and expanding medium on signals of the QCD phase transition
Creators: name: Nahrgang, Marlene
name: Herold, Christoph
name: Bleicher, Marcus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: According to a fluid dynamic expansion of the fireball we investigate how the inhomogeneity of the system influences the chiral phase transition of QCD. We compare the averaged values of the order parameter in equilibrium with that of a homogeneous system. If the temperature is averaged over a certain region of the fireball the corresponding correlation length does not diverge in an expansion with a critical point.
description: proceedings for Quark Matter 2012
Dynamical analysis of strong-lensing galaxy groups at intermediate redshift
Creators: name: Muñoz, R. P.
name: Motta, V.
name: Verdugo, T.
name: Garrido, F.
name: Limousin, M.
name: Padilla, N.
name: Foëx, G.
name: Cabanac, R.
name: Gavazzi, R.
name: Barrientos, L. F.
name: Richard, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present VLT spectroscopic observations of 7 discovered galaxy groups between 0.3
description: 20 pages, 5 figures in body, 7 figures in appendix, Submitted to Astronomy & Astrophysics Journal after revision
title: Особенности патоморфологической картины оппортунистических и вторичных заболеваний у ВИЧ-инфицированных больных
Creators: name: Азовцева, Ольга
name: Викторова, Елена
name: Мурочкин, Виктор
name: Архипов, Георгий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Высокая распространенность ВИЧ-инфекции в Российской Федерации приводит к увеличению числа больных с поздними стадиями болезни, у которых оппортунистические и вторичные заболевания часто приобретают генерализованный характер, нередко сочетаясь друг с другом. Это создает трудности в клинической, лабораторной и морфологической диагностике этих болезней. Проведено патоморфологическое исследование 74 пациентов с основным диагнозом ВИЧ-инфекция. Проведенное исследование выявило большое количество поздно выявленных среди умерших ВИЧ-инфицированных больных, низкий уровень охвата и позднее начало антиретровирусной терапии, четкую зависимость летального исхода от уровня СD4-лимфоцитов.
Long-term polarimetric observations of OH127.8+0.0
Creators: name: Wolak, P.
name: Szymczak, M.
name: Gerard, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: OH 1612 and 1667 MHz masers from the well known object OH127.8+0.0 were mon- itored in full-polarization mode over a period of 6.5 years and mapped with MERLIN at one epoch. The OH variability pattern of the star is typical of extremely long- period AGB stars. The distance determined from the 1612 MHz light curve and a new measurement of the angular radius is 3.87 (0.28) kpc. At both frequencies, the flux of polarized emission tightly follows the total flux variations while, the degrees of circu- lar and linear polarization are constant within measurement accuracy.. There is net polarization at both lines. The magnetic field strength estimated from a likely Zeeman pair is -0.6 mG at the distance of 5400 au from the star.At the near and far sides of the envelope, the polarization vectors are well aligned implying a regular structure of the magnetic field. The polarization characteristics of the OH maser emission suggest a radial magnetic field which is frozen in the stellar wind.
description: 12 pages, 9 figures
Orchis pallens
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: O. pallens X sambucina (= O. Chenevardii Schulze, O. Mantzii G.Keller) - 2:Umgebung von Jeur- L Brûlée ob Branson und gegen den Six Carro (Chenevard 1898, Garns, Mantz, F, A.Cohrs).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Cosmologies of Multiple Spherical Brane-universe Model
Creators: name: Jardim, I. C.
name: Landim, R. R.
name: Alencar, G.
name: Filho, R. N. Costa
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Friedmann-Robertson-Walker metric with spherical topology is calculated as an effective metric at the brane in a multiple branes in $D-$dimensional spacetime scenario. In this model the radius of the brane is the cosmological scale factor, and its evolution is calculated from the viewpoint of the observers on their respective branes. The cosmology of the brane-universe is analyzed in cases where the anisotropic pressure has a cosmological constant like state equation. The pressure values needed to distinguish the oscillating, expanding or collapsing solutions are found, and the minimum value of a brane-universe mass to prevent a collapse into a black hole is also calculated. Finally the equation of motion is solved numerically in order to illustrate the different cosmological scenarios and to validate the analytical results.
description: 13 pages, 3 figures
Breaking the chains: extreme value statistics and localization in random spin chains
Creators: name: Colbois, Jeanne
name: Laflorencie, Nicolas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Despite a very good understanding of single-particle Anderson localization in one-dimensional (1D) disordered systems, many-body effects are still full of surprises, a famous example being the interaction-driven many-body localization (MBL) problem, about which much has been written, and perhaps the best is yet to come. Interestingly enough the non-interacting limit provides a natural playground to study non-trivial multiparticle physics, offering the possibility to test some general mechanisms with very large-scale exact diagonalization simulations. In this work, we first revisit the 1D many-body Anderson insulator through the lens of extreme value theory, focusing on the extreme polarizations of the equivalent spin chain model in a random magnetic field. A many-body-induced chain breaking mechanism is explored numerically, and compared to an analytically solvable toy model. A unified description, from weak to large disorder strengths $W$ emerges, where the disorder-dependent average localization length $ξ(W)$ governs the extreme events leading to chain breaks. In particular, tails of the local magnetization distributions are controlled by $ξ(W)$. Remarkably, we also obtain a quantitative understanding of the full distribution of the extreme polarizations, which is given by a Fréchet-type law. In a second part, we explore finite interaction physics and the MBL question. For the available system sizes, we numerically quantify the difference in the extreme value distributions between the interacting problem and the non-interacting Anderson case. Strikingly, we observe a sharp "extreme-statistics transition" as $W$ changes, which may coincide with the MBL transition.
description: 18 + 6 pages; 13 + 4 figures; Accepted version
Environmental legacy contributes to the resilience of methane consumption in a laboratory microcosm system
Creators: name: Krause, Sascha M.B.
name: Meima-Franke, Marion
name: Veraart, Annelies J.
name: Ren, Gaidi
name: Ho, Adrian
name: Bodelier, Paul L.E.
Publisher: name: London : Nature Publishing Group
Year: 2018
Subjects: subject: Climate change
subject: Microbial processes
subject: Environmental alterations
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The increase of extreme drought and precipitation events due to climate change will alter microbial processes. Perturbation experiments demonstrated that microbes are sensitive to environmental alterations. However, only little is known on the legacy effects in microbial systems. Here, we designed a laboratory microcosm experiment using aerobic methane-consuming communities as a model system to test basic principles of microbial resilience and the role of changes in biomass and the presence of non-methanotrophic microbes in this process. We focused on enrichments from soil, sediment, and water reflecting communities with different legacy with respect to exposure to drought. Recovery rates, a recently proposed early warning indicator of a critical transition, were utilized as a measure to detect resilience loss of methane consumption during a series of dry/wet cycle perturbations. We observed a slowed recovery of enrichments originating from water samples, which suggests that the community's legacy with a perturbation is a contributing factor for the resilience of microbial functioning.
A Two-Dimensional Approach to Evaluate the Scientific Production of Countries (Case Study: The Basic Sciences)
Creators: name: Nejati, Ammar
name: Jenab, Seyyed Mehdi Hosseini
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Digital Libraries (cs.DL)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The quantity and quality of scientific output of the topmost 50 countries in the four basic sciences (agricultural and biological sciences, chemistry, mathematics, and physics and astronomy) are studied in the period of the recent 12 years (1996-2007). In order to rank the countries, a novel two-dimensional method is proposed, which is inspired by the H-index and other methods based on quality and quantity measures. The countries data are represented in a "quantity-quality diagram", and partitioned by a conventional statistical algorithm (k-means), into three clusters, members of which are rather the same in all of the basic sciences. The results offer a new perspective on the global positions of countries with regards to their scientific output.
description: 6 pages, 5 figures
Cosmology with a supersymmetric local $B-L$ model
Creators: name: Jeong, Kwang Sik
name: Park, Wan-il
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a minimal gauged $U(1)_{B-L}$ extension of the minimal supersymmetric Standard Model (MSSM) which resolves the cosmological moduli problem via thermal inflation, and realizes late-time Affleck-Dine leptogensis so as to generate the right amount of baryon asymmetry at the end of thermal inflation. The present relic density of dark matter can be explained by sneutrinos, MSSM neutralinos, axinos, or axions. Cosmic strings from $U(1)_{B-L}$ breaking are very thick, and so the expected stochastic gravitational wave background from cosmic string loops has a spectrum different from the one in the conventional Abelian-Higgs model, as would be distinguishable at least at LISA and DECIGO. The characteristic spectrum is due to a flat potential, and may be regarded as a hint of supersymmetry. Combined with the resolution of moduli problem, the expected signal of gravitational waves constrains the $U(1)_{B-L}$ breaking scale to be $\mathcal{O}(10^{12-13})\,{\rm GeV}$. Interestingly, our model provides a natural possibility for explaining the observed ultra-high-energy cosmic rays thanks to the fact that the core width of strings in our scenario is very large, allowing a large enhancement of particle emissions from the cusps of string loops. Condensation of $LH_u$ flat-direction inside of string cores arises inevitably and can also be the main source of the ultra-high-energy cosmic rays accompanied by ultra-high-energy lightest supersymmetric particles.
description: matching to JCAP version to be published
Contributions to a Yb+ single-ion optical frequency standard
Creators: name: Stein, Björn
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Ion trap
subject: thermal noise
subject: frequency stabilisation
subject: Ionenfalle
subject: thermisches Rauschen
subject: Frequenzstabilisierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Constraining $η/s$ through high-p$_\perp$ theory and data
Creators: name: Karmakar, Bithika
name: Zigic, Dusan
name: Salom, Igor
name: Auvinen, Jussi
name: Huovinen, Pasi
name: Djordjevic, Marko
name: Djordjevic, Magdalena
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study whether it is possible to use high-$p_\perp$ data/theory to constrain the temperature dependence of the shear viscosity over entropy density ratio $η/s$ of the matter formed in ultrarelativistic heavy-ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC). We use two approaches: i) We calculate high-$p_\perp$ $R_{AA}$ and flow coefficients $v_2$, $v_3$ and $v_4$ assuming different $(η/s)(T)$ of the fluid-dynamically evolving medium. ii) We calculate the quenching strength ($\hat{q}/T^3$) from our dynamical energy loss model and convert it to $η/s$ as a function of temperature. It turned out that the first approach can not distinguish between different $(η/s)(T)$ assumptions when the evolution is constrained to reproduce the low-$p_\perp$ data. In distinction, $(η/s)(T)$ calculated using the second approach agrees surprisingly well with the $(η/s)(T)$ inferred through state-of-the-art Bayesian analyses of the low-$p_\perp$ data even in the vicinity of $T_c$, while providing much smaller uncertainties at high temperatures.
description: 25 pages, 9 figures, Version published in Physical Review C
Contributions to change-point analysis under long-range dependencies
Creators: name: Willert, Juliane
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Long memory
subject: structural breaks
subject: ART
subject: information criteria
subject: CUSUM
subject: MOSUM
subject: Langes Gedächnis
subject: Strukturbrüche
subject: Informationskriterien
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Medical Information Embedding in Compressed Watermarked Intravascular Ultrasound Video
Creators: name: Dey, Nilanjan
name: Acharjee, Suvojit
name: Biswas, Debalina
name: Das, Achintya
name: Chaudhuri, Sheli Sinha
Publisher: name: arXiv
Year: 2013
Subjects: subject: Multimedia (cs.MM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In medical field, intravascular ultrasound (IVUS) is a tomographic imaging modality, which can identify the boundaries of different layers of blood vessels. IVUS can detect myocardial infarction (heart attack) that remains ignored and unattended when only angioplasty is done. During the past decade, it became easier for some individuals or groups to copy and transmits digital information without the permission of the owner. For increasing authentication and security of copyrights, digital watermarking, an information hiding technique, was introduced. Achieving watermarking technique with lesser amount of distortion in biomedical data is a challenging task. Watermark can be embedded into an image or in a video. As video data is a huge amount of information, therefore a large storage area is needed which is not feasible. In this case motion vector based video compression is done to reduce size. In this present paper, an Electronic Patient Record (EPR) is embedded as watermark within an IVUS video and then motion vector is calculated. This proposed method proves robustness as the extracted watermark has good PSNR value and less MSE.
description: Pages-7 Fig.-15 Tables-2
Ophrys fuciflora Monch
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: O. fuciflora (Crantz) Mönch (O. Arachnites [Scop.] Murray) Cat. 339. l: Im Gebiet Vionnaz-Monthey-St-Maurice an zahlreichen Stellen (Mantz, Marietan, Defago). - 2: Follateres und Fully (Garns); Chäteauneuf (Marietan); ob Chandolin (Saviese) (idem).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Phyllosilicate Emission from Protoplanetary Disks: Is the Indirect Detection of Extrasolar Water Possible?
Creators: name: Morris, Melissa A.
name: Desch, Steven J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Phyllosilicates are hydrous minerals formed by interaction between rock and liquid water and are commonly found in meteorites originating in the asteroid belt. Collisions between asteroids contribute to zodiacal dust, which therefore reasonably could include phyllosilicates. Collisions between planetesimals in protoplanetary disks may also produce dust containing phyllosilicates. These minerals possess characteristic emission features in the mid-infrared and could be detectable in extrasolar protoplanetary disks. Here we determine whether phyllosilicates in protoplanetary disks are detectable in the infrared using instruments such as those on board the Spitzer Space Telescope and SOFIA (Stratospheric Observatory for Infrared Astronomy). We calculate opacities for the phyllosilicates most common in meteorites and compute the emission of radiation from a protoplanetary disk using a 2-layer radiative transfer model. We find that phyllosilicates present at the 3% level lead to observationally significant differences in disk spectra, and should therefore be detectable using infrared observations and spectral modeling. Detection of phyllosilicates in a protoplanetary disk would be diagnostic of liquid water in planetesimals in that disk and would demonstrate similarity to our own Solar System. We also discuss use of phyllosilicate emission to test the "waterworlds" hypothesis, which proposes that liquid water in planetesimals should correlate with the inventory of short-lived radionuclides in planetary systems, especially 26Al.
Traversable wormholes in bi-metric gravity
Creators: name: Rahman, Mostafizur
name: Sen, Anjan A
name: Bohra, Sunil Singh
Publisher: name: arXiv
Year: 2023
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: The ghost-free bi-metric gravity theory is a viable theory of gravity that explores the interaction between a massless and a massive graviton and can be described in terms of two dynamical metrics. In this paper, we present an exact static, spherically symmetric vacuum solution within this theory. The solution is spatially Schwarzschild-de Sitter, with the value of the cosmological constant determined by the graviton mass and the interaction parameters of the theory. Notably, for specific parameter ranges, the solution represents a traversable Lorentzian wormhole that violates the weak energy condition near its throat. Furthermore, we have investigated the evolution of scalar and electromagnetic fields in this wormhole spacetime and observed the presence of arbitrarily long-lived quasi-resonant modes in the quasinormal spectrum.
description: 15 pages, 7 figures. An appendix and some references are added in the updated version. Matches version to appear in Phys. Rev. D
When the Sun Goes Down - supplement materials
Creators: name: Szczepańska, Dagmara
name: Marchlewska, Marta
name: Michalski, Piotr
name: Górska, Paulina
name: Molenda, Zuzanna
name: Rogoza, Marta
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Climate change conspiracy beliefs
subject: collective narcissism
subject: political knowledge

description: Supplement materials to an article "When the Sun Goes Down: Low Political Knowledge and High National Narcissism Predict Climate Change Conspiracy Beliefs"
Statistics of work and fluctuation theorems for microcanonical initial states
Creators: name: Talkner, Peter
name: Morillo, Manuel
name: Yi, Juyeon
name: Hanggi, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The work performed on a system in a microcanonical state by changes in a control parameter is characterized in terms of its statistics. The transition probabilities between eigenstates of the system Hamiltonians at the beginning and the end of the parameter change obey a detailed balance-like relation from which various forms of the microcanonical fluctuation theorem are obtained. As an example, sudden deformations of a two dimensional harmonic oscillator potential are considered and the validity of the microcanonical Jarzynski equality connecting the degrees of degeneracy of energy eigenvalues before and after the control parameter change is confirmed.
description: 16 pages, 5 figures
Influence of accelerometer parametrizations on GRACE post-fit residuals
Creators: name: Koch, Igor
name: Shabanloui, Akbar
name: Flury, Jakob
Publisher: name: München : European Geosciences Union
Year: 2019
Subjects: subject: Gravity field recovery
subject: GRACE
subject: Accelerometer
subject: Accelerometer calibration
subject: Schwerefeldbestimmung
subject: Akzelerometer
subject: Akzelerometer-Kalibrierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Accelerometers onboard of satellites can be regarded as a key improvement in gravity field recovery. These instruments are located in the center of mass of the satellite and are precisely measuring non-gravitational forces acting on the satellite surfaces. Accelerometer measurements are distorted in their magnitude and amplitude, so an accelerometer calibration has to be carried out. Usually, in orbit determination and gravity field parameter estimation, a priori values are introduced and corresponding numeric corrections are estimated iteratively. Within the gravity field recovery community various accelerometer calibration parametrizations are applied. We have tested several parametrization scenarios within our in-house developed GRACE-SIGMA gravity field recovery software. In this contribution, we present the impact of these scenarios on post- fit KBRR residuals.
title: 2019 thermal infrared survey of the Waiotapu Geothermal Field
Creators: name: Reeves, Robert R.
name: Sanders, Fiona
Publisher: name: GNS Science
Year: 2019

description: An aerial thermal infrared (TIR) survey of the Waiotapu Geothermal Field was undertaken on 13 April 2019. Approximately 2260 TIR images were processed and mosaicked to produce a single, 16-bit image with a ground pixel size of approximately 2 m x 2 m (Figure A.1). The purpose of this report is to summarise the method of data collection and present the final TIR image and accompanying brief interpretation. The TIR data is of good quality and enables numerous geothermal and non-geothermal surface features to be identified and mapped to relatively high spatial accuracies (<3 m) within the limitations of the survey. The locations of TIR anomalies interpreted to be caused by geothermal activity are in general agreement with areas of known surface geothermal activity. (auth)
Towards Early Prediction of Human iPSC Reprogramming Success
Creators: name: Singh, Abhineet
name: Jasra, Ila
name: Mouhammed, Omar
name: Dadheech, Nidheesh
name: Ray, Nilanjan
name: Shapiro, James
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper presents advancements in automated early-stage prediction of the success of reprogramming human induced pluripotent stem cells (iPSCs) as a potential source for regenerative cell therapies.The minuscule success rate of iPSC-reprogramming of around $ 0.01% $ to $ 0.1% $ makes it labor-intensive, time-consuming, and exorbitantly expensive to generate a stable iPSC line. Since that requires culturing of millions of cells and intense biological scrutiny of multiple clones to identify a single optimal clone. The ability to reliably predict which cells are likely to establish as an optimal iPSC line at an early stage of pluripotency would therefore be ground-breaking in rendering this a practical and cost-effective approach to personalized medicine. Temporal information about changes in cellular appearance over time is crucial for predicting its future growth outcomes. In order to generate this data, we first performed continuous time-lapse imaging of iPSCs in culture using an ultra-high resolution microscope. We then annotated the locations and identities of cells in late-stage images where reliable manual identification is possible. Next, we propagated these labels backwards in time using a semi-automated tracking system to obtain labels for early stages of growth. Finally, we used this data to train deep neural networks to perform automatic cell segmentation and classification. Our code and data are available at https://github.com/abhineet123/ipsc_prediction.
description: Accepted for publication at the Journal of Machine Learning for Biomedical Imaging (MELBA) https://melba-journal.org/2023:014
Feasible Action-Space Reduction as a Metric of Causal Responsibility in Multi-Agent Spatial Interactions
Creators: name: George, Ashwin
name: Siebert, Luciano Cavalcante
name: Abbink, David
name: Zgonnikov, Arkady
Publisher: name: arXiv
Year: 2023
Subjects: subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Modelling causal responsibility in multi-agent spatial interactions is crucial for safety and efficiency of interactions of humans with autonomous agents. However, current formal metrics and models of responsibility either lack grounding in ethical and philosophical concepts of responsibility, or cannot be applied to spatial interactions. In this work we propose a metric of causal responsibility which is tailored to multi-agent spatial interactions, for instance interactions in traffic. In such interactions, a given agent can, by reducing another agent's feasible action space, influence the latter. Therefore, we propose feasible action space reduction (FeAR) as a metric of causal responsibility among agents. Specifically, we look at ex-post causal responsibility for simultaneous actions. We propose the use of Moves de Rigueur (MdR) - a consistent set of prescribed actions for agents - to model the effect of norms on responsibility allocation. We apply the metric in a grid world simulation for spatial interactions and show how the actions, contexts, and norms affect the causal responsibility ascribed to agents. Finally, we demonstrate the application of this metric in complex multi-agent interactions. We argue that the FeAR metric is a step towards an interdisciplinary framework for quantifying responsibility that is needed to ensure safety and meaningful human control in human-AI systems.
title: Компьютерное моделирование
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2022

description: В учебном пособии рассмотрены теоретические аспекты моделирования вообще и имитационного моделирования в частности. Приведены общие сведения о среде Anylogic как наиболее популярной среде имитационного моделирования, описаны специфика использования ресурсов, а также возможности среды AnyLogic для построения экспериментов. Отдельная глава посвящена агентному моделированию. Учебное пособие предназначено для студентов, обучающихся по укрупненным группам специальностей среднего профессионального образования 09.00.00 «Информатика и вычислительная техника», 10.00.00 «Информационная безопасность», изучающих дисциплину «Компьютерное моделирование».
Some Aspects of Geodetic Time Series Modelling
Creators: name: Gamse, Sonja
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: Bayesian probabilistic approach
subject: frequency analysis
subject: Kalman filter
subject: multiple linear regression
subject: time series analysis
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: The radical technological development of sensors, communication techniques and high-performance computers has increased the importance of permanent fully automatised monitoring systems, also geodetical, and promoted, encouraged or even required the development and testing of enhanced modelling algorithms in order to extract all of the information from the data available. The implementation of mathematical techniques prioritizes the models which enable the assimilation of all of the information available, an estimation of essential parameters of dynamic modelling in real time, the processing of measurements with data gaps and methods to handle the complexity of adopted functional models. As such these models can provide an additional supportive tool for safety assessment with decision-making and can distribute more reliable results for alarming procedures. In the contribution an overview of some methods, which were presented in detail in referenced manuscripts, is given. Long-term time series of monitoring data were used to implement and analyse regression analysis and Bayesian probabilistic approach for model class selection, two models of Kalman filtering for (near) real-time assessment, and two frequency methods - Least Squares Spectral Analysis and Lomb-Scargle normalised periodogram, for analysing periodicities in time series with unevenly distributed data.
Individuality in Swarm Robots with the Case Study of Kilobots: Noise, Bug, or Feature?
Creators: name: Raoufi, Mohsen
name: Romanczuk, Pawel
name: Hamann, Heiko
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Inter-individual differences are studied in natural systems, such as fish, bees, and humans, as they contribute to the complexity of both individual and collective behaviors. However, individuality in artificial systems, such as robotic swarms, is undervalued or even overlooked. Agent-specific deviations from the norm in swarm robotics are usually understood as mere noise that can be minimized, for example, by calibration. We observe that robots have consistent deviations and argue that awareness and knowledge of these can be exploited to serve a task. We measure heterogeneity in robot swarms caused by individual differences in how robots act, sense, and oscillate. Our use case is Kilobots and we provide example behaviors where the performance of robots varies depending on individual differences. We show a non-intuitive example of phototaxis with Kilobots where the non-calibrated Kilobots show better performance than the calibrated supposedly ``ideal" one. We measure the inter-individual variations for heterogeneity in sensing and oscillation, too. We briefly discuss how these variations can enhance the complexity of collective behaviors. We suggest that by recognizing and exploring this new perspective on individuality, and hence diversity, in robotic swarms, we can gain a deeper understanding of these systems and potentially unlock new possibilities for their design and implementation of applications.
description: Accepted at the 2023 Conference on Artificial Life (ALife). To see the 9 Figures in large check this repo: https://github.com/mohsen-raoufi/Kilobots-Individuality-ALife-23/tree/main/Figures
Cross-sectional validity of the EQ-5D-Y as a generic health outcome instrument in children and adolescents with cystic fibrosis in Germany
Creators: name: Eidt-Koch, Daniela
name: Mittendorf, Thomas
name: Greiner, Wolfgang
Publisher: name: London : BioMed Central Ltd
Year: 2009
Subjects: subject: EQ-5D
subject: Cystic Fibrosis Questionnaire (CFQ)
subject: cystic fibrosis
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Background: Quality of life is recognized as an important additional outcome measure in clinical trials and health economic evaluations. The EQ-5D is an important generic health outcome instrument often used for economic evaluations as a complement with disease-specific outcome measures. In this study quality of life data was assessed using the EQ-5D-Y (new EQ-5D version for children and adolescents) and the Cystic Fibrosis Questionnaire (CFQ). The objective of the study is to evaluate the cross-sectional validity of the EQ-5D-Y as a generic health outcome instrument in children and adolescents with cystic fibrosis in Germany. Methods: In 2006 a multi-centre study was conducted in four cystic fibrosis centres in Germany. Quality of life data from 96 patients between eight and seventeen years was collected using the EQ-5D-Y as a generic outcome instrument and the Cystic Fibrosis Questionnaire (CFQ) as a disease-specific instrument. Results of both instruments were compared by statistical analyses using Spearman's rank correlations. Results: 44.6% of the patients stated that they had no problems in any of the EQ-5D-Y dimensions. Several low to high correlations between separate dimensions and the visual analogue scale of the EQ-5D-Y and the different scales of the CFQ for children, their parents and adolescents can be presented in this paper. Looking at the five EQ-5D-Y dimensions the highest correlation (rS = 0.625, p = 0.01) was found between the dimension 'mobility' and the CFQ scale 'physical functioning' in adolescent patients. The overall highest correlation was found between the 'subjective health perception' and the visual analogue scale (rS = 0.744, p = 0.01) in adolescent patients older than 13 years. Conclusion: The EQ-5D-Y can be considered a cross-sectional valid generic health outcome instrument which reflects differences in health according to the progression of the life-long chronic disease cystic fibrosis.
title: Содержание TGF-Β1, FGF-2 и внеклеточный матрикс миокарда левого желудочка и стенки брюшного отдела аорты крыс линии Вистар при длительном введении прозерина
Creators: name: Рубанова, Марина
name: Жмайлова, Светлана
name: Румянцев, Егор
name: Прошина, Лидия
name: Губская, Прасковья
name: Атаев, Исмаил
name: Карев, Вадим
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В настоящее время в качестве одного из показателей, определяющих эффективность кровообращения, используют понятие «сердечно-сосудистое сопряжение», которое оценивает соотношение жесткости (эластанса) левого желудочка и артерий. Жесткость стенки левого желудочка и артерий напрямую зависит от содержания коллагеновых волокон во внеклеточном матриксе. Статья посвящена изменениям содержания TGF-β1, FGF-2 (как одних из основных профибротических цитокинов) и коллагеновых волокон в миокарде и аорте крыс линии Вистар при моделировании хронической ваготонической активации двухнедельным введением прозерина.
The dynamics of commodity return comovements
Creators: name: Prokopczuk, Marcel
name: Wese Simen, Chardin
name: Wichmann, Robert
Publisher: name: New York, NY : Wiley Interscience
Year: 2021
Subjects: subject: commodity markets
subject: comovement
subject: factor model
subject: financialization
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: We compare factor models with respect to their ability to explain commodity futures return comovements. A simple one-factor model based on the first principal component extracted from a panel of commodity returns outperforms a macroeconomic model, and explains most of the realized comovements. We find that intersectoral correlations display more time variations than intrasectoral correlations. Dissecting the evidence further, we find that comovements are driven by the variation of the factor as opposed to exposure to it. Our results cast doubt on the persistence of the effects of financialization and emphasize the importance of the dynamics of the factor variance. © 2021 The Authors. The Journal of Futures Markets published by Wiley Periodicals LLC.
APEX: A Prime EXperiment at Jefferson Lab
Creators: name: Beacham, James
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: APEX is an experiment at Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA, that searches for a new gauge boson ($A^\prime$) with sub-GeV mass and coupling to ordinary matter of $g^\prime \sim (10^{-6} - 10^{-2}) e$. Electrons impinge upon a fixed target of high-Z material. An $A^\prime$ is produced via a process analogous to photon bremsstrahlung, decaying to an $e^+ e^-$ pair. A test run was held in July of 2010, covering $m_{A^\prime}$ = 175 to 250 MeV and couplings $g^\prime/e \; \textgreater \; 10^{-3}$. A full run is approved and will cover $m_{A^\prime} \sim$ 65 to 525 MeV and $g^\prime/e \; \textgreater \; 2.3 \times10^{-4}$.
description: Contributed to the 8th Patras Workshop on Axions, WIMPs and WISPs, Chicago, July 18-22, 2012. 4 pages, 4 figures
Radio-frequency spectroscopy of a strongly interacting spin-orbit coupled Fermi gas
Creators: name: Fu, Zhengkun
name: Huang, Lianghui
name: Meng, Zengming
name: Wang, Pengjun
name: Liu, Xia-Ji
name: Pu, Han
name: Hu, Hui
name: Zhang, Jing
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate experimentally and theoretically radio-frequency spectroscopy and pairing of a spin-orbit-coupled Fermi gas of $^{40}$K atoms near a Feshbach resonance at $B_{0}=202.2$ G. Experimentally, the integrated spectroscopy is measured, showing characteristic blue and red shifts in the atomic and molecular responses, respectively, with increasing spin-orbit coupling. Theoretically, a smooth transition from atomic to molecular responses in the momentum-resolved spectroscopy is predicted, with a clear signature of anisotropic pairing at and below resonance. Our many-body prediction agrees qualitatively well with the observed spectroscopy near the Feshbach resonance.
description: 7 pages, 4 figures. Supercedes 1302.0559
An Optical-Near-Infrared Outburst with No Accompanying Gamma-Rays in the Blazar PKS 0208-512
Creators: name: Chatterjee, Ritaban
name: Fossati, G.
name: Urry, C. M.
name: Bailyn, C. D.
name: Maraschi, L.
name: Buxton, M.
name: Bonning, E. W.
name: Isler, J.
name: Coppi, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of an anomalous flare in a bright blazar, namely, PKS 0208-512, one of the targets of the Yale/SMARTS optical-near-infrared (OIR) monitoring program of Fermi blazars. We identify three intervals during which PKS 0208-512 undergoes outbursts at OIR wavelengths lasting for longer than 3 months. Its brightness increases and then decreases again by at least 1 magnitude in these intervals. In contrast, the source undergoes bright phases in GeV energies lasting for longer than 1 month during intervals 1 and 3 only. The OIR outburst during interval 2 is comparable in brightness and temporal extent to the OIR flares during intervals 1 and 3 which do have gamma-ray counterparts. By analyzing the gamma-ray, OIR, and supporting multi-wavelength variability data in details, we speculate that the OIR outburst during interval 2 was caused by a change in the magnetic field without any change in the total number of emitting electrons or Doppler factor of the emitting region. Alternatively, it is possible that the location of the outburst in the jet during interval 2 was closer to the black hole where the jet is more compact and the bulk Lorentz factor of the material in the jet is smaller. We also discuss the complex OIR spectral behavior during these three intervals.
description: 7 pages, 4 figures, Accepted for publication in ApJ Letters
title: Subsidiarität in der Finanzverfassung - Einführung in die Thematik
Creators: name: Kube, Hanno
Publisher: name: University Library Heidelberg
Year: 2015

description: Bund-Länder-Finanzbeziehungen - Neuordnung - Aufgabenzuständigkeiten - Staatsaufgaben auf verschiedenen Ebenen - Eigenverantwortung
title: Subsidiarität als Strukturprinzip - Zur Applikation eines rechtsethischen Prinzips im (Finanz-) Verfassungsrecht
Creators: name: Droege, Michael
Publisher: name: University Library Heidelberg
Year: 2015

description: Entfaltung des Subsidiaritätsprinzips - Gestaltungsprinzip - Entkatholisierung - Herkunft des Subsidiaritätsprinzips - Enzyklika - Reformprinzip