cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electronic structure of KTi(SO4)2.H2O - a S=1/2 frustrated chain antiferromagnet
Creators: name: Kasinathan, Deepa
name: Koepernik, K.
name: Janson, O.
name: Nilsen, G. J.
name: Piatek, J. O.
name: Ronnow, H. M.
name: Rosner, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The compound KTi(SO4)2.H2O was recently reported as a quasi one-dimensional spin 1/2 compound with competing antiferromagnetic nearest neighbor exchange J1 and next-nearest neighbor exchange J2 along the chain with a frustration ratio alpha = J2/J1 ~ 0.29 [Chem. Mater. vol. 20, pg. 8 (2008)]. Here, we report a microscopically based magnetic model for this compound derived from density functional electronic structure calculations along with respective tight-binding models. Our calculations confirm the quasi one-dimensional nature of the system with antiferromagnetic J1 and J2, but suggest a significantly larger frustration ratio alpha ~ 1.1 +- 0.2. Based on transfer matrix renormalization group calculations we found that, due to an intrinsic symmetry of the J1-J2 model, our larger frustration ratio alpha is also consistent with the previous thermodynamic data. To resolve this issue, we propose performing high-field magnetization measurements and low temperature susceptibility measurements which should allow to precisely identify the frustration ratio alpha.
description: 11 pages, 8 figures
Local Interstellar Hydrogen's Disappearance at 1 Au: Four Years of IBEX in the Rising Solar Cycle
Creators: name: Saul, Lukas
name: Bzowski, Maciej
name: Fuselier, Stephen
name: Kubiak, Marzena
name: McComas, Dave
name: Möbius, Eberhard
name: Sokół, Justina
name: Rodríguez, Diego
name: Scheer, Juergen
name: Wurz, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: NASA's Interstellar Boundary Explorer (IBEX) mission has recently opened a new window on the interstellar medium (ISM) by imaging neutral atoms. One "bright" feature in the sky is the interstellar wind flowing into the solar system. Composed of remnants of stellar explosions as well as primordial gas and plasma, the ISM is by no means uniform. The interaction of the local ISM with the solar wind shapes our heliospheric environment with hydrogen being the dominant component of the very local ISM. In this paper, we report on direct sampling of the neutral hydrogen of the local ISM over four years of IBEX observations. The hydrogen wind observed at 1 AU has decreased and nearly disappeared as the solar activity has increased over the last four years; the signal at 1 AU has dropped off in 2012 by a factor of ~8 to near background levels. The longitudinal offset has also increased with time presumably due to greater radiation pressure deflecting the interstellar wind. We present longitudinal and latitudinal arrival direction measurements of the bulk flow as measured over four years beginning at near solar minimum conditions. The H distribution we observe at 1 AU is expected to be different from that outside the heliopause due to ionization, photon pressure, gravity, and filtration by interactions with heliospheric plasma populations. These observations provide an important benchmark for modeling of the global heliospheric interaction. Based on these observations we suggest a further course of scientific action to observe neutral hydrogen over a full solar cycle with IBEX.
Airborne Wind Energy : Flugwindenergieanlagen zur Nutzung von Höhenwind
Creators: name: Ponick, Bernd
name: Heide, Daniel
name: Bagaber, Bakr
name: Steinbrink, Jörn
name: Mertens, Axel
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Energieversorgung
subject: Transformation
subject: Erneuerbare Energien
subject: Energiewende
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: [no abstract available]
Über vollständig q-additive Funktionen und die Primfaktorzerlegung von n!
Creators: name: Lieske, Iris
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: q-additive Funktion
subject: Primfaktorzerlegung
subject: Fakultät
subject: Gleichverteilung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: [no abstract]
Gemischte Least-Squares-FEM für Elastoplastizität
Creators: name: Kubitz, Jörg Michael
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Elastoplastizität
subject: gemischte Finite-Elemente-Methode
subject: a-posteriori Fehlerschätzer
subject: Methode kleinster Quadrate
subject: Lambert-W-Funktion
subject: adaptive Verfeinerung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: [no abstract]
title: A Eulerian−Lagrangian Coupled Method for the Simulation of Submerged Granular Column Collapse
Creators: name: Wang, Chun
name: Ye, Guanlin
name: Meng, Xiannan
name: Wang, Yongqi
name: Peng, Chong
Publisher: name: MDPI
Year: 2023

description: A two-fluid Eulerian–Lagrangian coupled model is developed to investigate the complex interactions between solid particles and the ambient water during the process of submerged granular column collapse. In this model, the water phase is considered to be a Newtonian fluid, whereas the granular column is modeled as an elastic–perfectly plastic material. The water flow field is calculated by the mesh-based Eulerian Finite Volume Method (FVM), with the free surface captured by the Volume-of-Fluid (VOF) technique. The large deformation of the granular material is simulated by the mesh-free, particle-based Lagrangian Smoothed Particle Hydrodynamics method (SPH). Information transfer between Eulerian nodes and Lagrangian particles is performed by the aid of the SPH interpolation function. Both dry and submerged granular column collapses are simulated with the proposed model. Experiments of the submerged cases are also conducted for comparison. Effects of dilatancy (compaction) of initially dense (loose) packing granular columns on the mixture dynamics are investigated to reveal the mechanisms of different flow regimes. Pore water pressure field and granular velocity field are in good agreement between our numerical results and experimental observations, which demonstrates the capability of the proposed Eulerian–Lagrangian coupled method in dealing with complex submerged water–granular mixture flows.
Discussion on common errors in analyzing sea level accelerations, solar trends and global warming
Creators: name: Scafetta, Nicola
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Errors in applying regression models and wavelet filters used to analyze geophysical signals are discussed: (1) multidecadal natural oscillations (e.g. the quasi 60-year Atlantic Multidecadal Oscillation (AMO), North Atlantic Oscillation (NAO) and Pacific Decadal Oscillation (PDO)) need to be taken into account for properly quantifying anomalous accelerations in tide gauge records such as in New York City; (2) uncertainties and multicollinearity among climate forcing functions prevent a proper evaluation of the solar contribution to the 20th century global surface temperature warming using overloaded linear regression models during the 1900-2000 period alone; (3) when periodic wavelet filters, which require that a record is pre-processed with a reflection methodology, are improperly applied to decompose non-stationary solar and climatic time series, Gibbs boundary artifacts emerge yielding misleading physical interpretations. By correcting these errors and using optimized regression models that reduce multicollinearity artifacts, I found the following results: (1) the sea level in New York City is not accelerating in an alarming way, and may increase by about 350 mm from 2000 to 2100 instead of the previously projected values varying from 1130 mm to 1550 mm estimated using the methods proposed by Sallenger et al. (2012) and Boon (2012), respectively; (2) the solar activity increase during the 20th century contributed about 50% of the 0.8 K global warming observed during the 20th century instead of only 7-10% (IPCC, 2007; Benestad and Schmidt, 2009; Lean and Rind, 2009). These findings stress the importance of natural oscillations and of the sun to properly interpret climatic changes.
description: 21 pages, 10 Figures
Evolution of Swarm Robotics Systems with Novelty Search
Creators: name: Gomes, Jorge
name: Urbano, Paulo
name: Christensen, Anders Lyhne
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Novelty search is a recent artificial evolution technique that challenges traditional evolutionary approaches. In novelty search, solutions are rewarded based on their novelty, rather than their quality with respect to a predefined objective. The lack of a predefined objective precludes premature convergence caused by a deceptive fitness function. In this paper, we apply novelty search combined with NEAT to the evolution of neural controllers for homogeneous swarms of robots. Our empirical study is conducted in simulation, and we use a common swarm robotics task - aggregation, and a more challenging task - sharing of an energy recharging station. Our results show that novelty search is unaffected by deception, is notably effective in bootstrapping the evolution, can find solutions with lower complexity than fitness-based evolution, and can find a broad diversity of solutions for the same task. Even in non-deceptive setups, novelty search achieves solution qualities similar to those obtained in traditional fitness-based evolution. Our study also encompasses variants of novelty search that work in concert with fitness-based evolution to combine the exploratory character of novelty search with the exploitatory character of objective-based evolution. We show that these variants can further improve the performance of novelty search. Overall, our study shows that novelty search is a promising alternative for the evolution of controllers for robotic swarms.
description: To appear in Swarm Intelligence (2013), ANTS Special Issue. The final publication will be available at link.springer.com
Anwendung moderner optischer Analysensysteme in der Biotechnologie
Creators: name: Gierse, Alexander
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Durchflusszytometrie
subject: 2D-Fluoreszenzspektroskopie
subject: FACS
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
title: Len’ka Panteleev and the traditions of Van’ka Kain: Criminal Biography in XXth Century Russia
Creators: name: Colombo, Duccio
Publisher: name: AvtobiografiЯ
Year: 2017

description: The Fighter against the myth, or the memoirist who considers himself a Hercules (Anton Pavlovich Chekhov: an attempt at a characterization by N.M. Ezhov).
The vast corpus about the 1920s Petrograd bandit Len’ka Panteleev, comprised of different texts – such as newspaper articles, fiction, film and song, with a complex and often ambiguous interplay between factual accounts and fictional adaptation – seems untypical for the era. A useful term of comparison is the similar corpus concerning the 18th century Moscow rogue Van’ka Kain. The latter shows all the typical features of 18th century criminal biographies, which at the time were popular throughout Europe. According to Michel Foucault, this genre paves the way to the detective novel, where the punitive mechanisms are substituted by the disciplinary ones.
Die Funktion von Cyclin E und Skp2 in der Regulation der Proliferation und genetischen Instabilität in Hepatozyten der Maus : Endoreduplikation versus genomische Instabilität
Creators: name: Kossatz-Böhlert, Uta
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Skp2
subject: Cyclin E
subject: Endoreduplikation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Sharp bounds for Neuman-Sándor's mean in terms of the root-mean-square
Creators: name: Jiang, Wei-Dong
name: Qi, Feng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26E60 (Primary) 26D99 (Secondary)

description: In the paper, the authors find sharp bounds for Neuman-Sándor's mean in terms of the root-mean-square.
description: 5 pages
title: Борец с мифом, или мемуарист, считающий себя Гераклом (Антон Павлович Чехов: Опыт ха- рактеристики Н.М. Ежова).
Creators: name: Bushkanets, Lia
Publisher: name: AvtobiografiЯ
Year: 2017

description: The Fighter against the myth, or the memoirist who considers himself a Hercules (Anton Pavlovich Chekhov: an attempt at a characterization by N.M. Ezhov).
The article is devoted to the scandalous memoirs of Nikolai Ezhov about Chekhov, in which the author was considered an average writer and a greedy and petty man. The memoirs are analyzed in the context of the history of the formation of the literary reputation of Chekhov. The article is based on archival resources, newspapers and journals of the early twentieth century. The aim is to show that these kinds of memoirs try to resist the idealization of the writer by the public. However, this strategy often brings to reduction and simplification.
CO Abundance Variations in the Orion Molecular Cloud
Creators: name: Ripple, F.
name: Heyer, M. H.
name: Gutermuth, R.
name: Snell, R. L.
name: Brunt, C. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Infrared stellar photometry from 2MASS and spectral line imaging observations of 12CO and 13CO J = 1-0 line emission from the FCRAO 14m telescope are analysed to assess the variation of the CO abundance with physical conditions throughout the Orion A and Orion B molecular clouds. Three distinct Av regimes are identified in which the ratio between the 13CO column density and visual extinction changes corresponding to the photon dominated envelope, the strongly self-shielded interior, and the cold, dense volumes of the clouds. Within the strongly self-shielded interior of the Orion A cloud, the 13CO abundance varies by 100% with a peak value located near regions of enhanced star formation activity. The effect of CO depletion onto the ice mantles of dust grains is limited to regions with AV > 10 mag and gas temperatures less than 20 K as predicted by chemical models that consider thermal-evaporation to desorb molecules from grain surfaces. Values of the molecular mass of each cloud are independently derived from the distributions of Av and 13CO column densities with a constant 13CO-to-H2 abundance over various extinction ranges. Within the strongly self-shielded interior of the cloud (Av > 3 mag), 13CO provides a reliable tracer of H2 mass with the exception of the cold, dense volumes where depletion is important. However, owing to its reduced abundance, 13CO does not trace the H2 mass that resides in the extended cloud envelope, which comprises 40-50% of the molecular mass of each cloud. The implied CO luminosity to mass ratios, M/L_{CO}, are 3.2 and 2.9 for Orion A and Orion B respectively, which are comparable to the value (2.9), derived from gamma-ray observations of the Orion region. Our results emphasize the need to consider local conditions when applying CO observations to derive H2 column densities.
description: Accepted for publication in MNRAS. 21 pages, 14 figures
Entwicklung einer leistungsfähigen Ionenquelle zur Herstellung dünner Schichten hoher optischer Güte
Creators: name: Ly, Thanh Hung
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: IBS
subject: ion beam sputtering
subject: Ionenstrahlzerstäubung
subject: dielektrische Schichten
subject: Raumtriebwerk
subject: RIM
subject: hochpräzise Optikfertigung
subject: Prozessentwicklung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Ausgewählte chemische Reaktionen mit plasmachemisch angeregtem Stickstoff
Creators: name: Köhler, Kai
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Plasmachemie
subject: PACVD
subject: Borazine
subject: Feststoffnitridierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Kripto Paralar Fiyat Davranışları ve Davranışsal Finans (Cryptocurrency Price Behaviors and Behavioral Finance)
Creators: name: Üster, Mehmet Maruf
Publisher: name: Zenodo
Year: 2024
Subjects: Behavioral Finance
Investor Decision
Crypto Money Market

description: Çalışmanın ana kütlesini Türkiye'de kripto para piyasasında işlem yapan yatırımcılar oluşturmaktadır. Türkiye'de milyonlarca kişi kripto para yatırımlarını sürdürdüklerinden tüm kişilere sınırlı zamanda ulaşmak mümkün değildir. Çalışmada kimlikleri saklı kalmak kaydıyla piyasada uzun zamandır yatırımda bulunan İstanbul-Ankara-İzmir başta olmak üzere araştırmacının oldukça geniş olan yatırımcı çevresinin kripto para yatırımcılarında ana kütleyi en iyi şekilde temsil edeceği düşünülmektedir. Bu nedenle çalışmanın örneklemi olarak üç büyük il başta olmak üzere ikili ilişkiler üzerinden 400 kişi seçilmiştir. Ağırlığı büyük şehirlerde ikamet eden yatırımcılar portföy büyüklüklerini net olarak paylaşmamışlardır. Belirli bir skalaya oturtulmak istendiğinde anket uygulananların yarısına yakını kripto cüzdan bilgilerini paylaşmak istememiştir. Ancak temelde portföy büyüklüğünün minimum 200.000 TL ve üzeri olduğu netleştirilmiştir. Çalışmanın sonucunda genel olarak güvenlik sorununun halen bir sorun olarak başı çektiği görülmektedir. Ankete katılanların beklentisi bu piyasanın ileride çok daha yüksek hacimlere geleceği ve ticari hayatta kullanılacağı yönündedir. Öte yandan ilgili otoritelerin daha fazla denetlemeleri ana beklentidir. 
The main body of the study consists of investors trading in the cryptocurrency market in Turkey. Since millions of people in Turkey continue their cryptocurrency investments, it is not possible to reach all of them in a limited time. In the study, it is believed that the very wide investor circle of the researcher, mainly including those from Istanbul, Ankara, and Izmir who have been investing in the market for a long time, will best represent the main body of cryptocurrency investors, provided their identities are kept confidential. Therefore, 400 individuals have been selected as the sample of the study, mainly from the three major cities, through bilateral relations. Investors residing in major cities have not clearly shared the sizes of their portfolios. When attempting to place them on a specific scale, almost half of the surveyed did not want to share their crypto wallet information. However, it has been clarified that the basic portfolio size is a minimum of 200,000 TL and above. As a result of the study, it is seen that security concerns still remain a major issue. The expectation of the survey participants is that this market will achieve much higher volumes in the future and will be used in commercial life. On the other hand, more regulations by the relevant authorities are the main expectation.
title: ‘Мнимые биографии’ советских детских писателей
Creators: name: Maslinskaia, Svetlana
Publisher: name: AvtobiografiЯ
Year: 2017

description: ‘Imaginary biographies’ of Soviet Children’s Writers
This article focuses on the process of establishing the genre of the biography of Soviet children’s writer from the official autobiographies of the 1930s to the biographical essays of the 1950s-1970s based on the study of auto/biographical texts targeted to a specific circle of experts, i.e. critics, editors and pedagogues. The article aims also to identify the functions of the auto/biographical narratives of children’s writers in the Soviet literary system of the period 1930-1970.
Robotereinsatz in der werkstattorientierten Fertigung
Creators: name: Hahn, Daniel
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Mensch-Roboter-Interaktion
subject: intuitive Roboterprogrammierung
subject: Kleinserienfertigung
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Deviation of Stellar Orbits from Test Particle Trajectories Around Sgr A* Due to Tides and Winds
Creators: name: Psaltis, Dimitrios
name: Li, Gongjie
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Monitoring the orbits of stars around Sgr A* offers the possibility of detecting the precession of their orbital planes due to frame dragging, of measuring the spin and quadrupole moment of the black hole, and of testing the no-hair theorem. Here we investigate whether the deviations of stellar orbits from test-particle trajectories due to wind mass loss and tidal dissipation of the orbital energy compromise such measurements. We find that the effects of stellar winds are, in general, negligible. On the other hand, for the most eccentric orbits (e>0.96) for which an optical interferometer, such as GRAVITY, will detect orbital plane precession due to frame dragging, the tidal dissipation of orbital energy occurs at timescales comparable to the timescale of precession due to the quadrupole moment of the black hole. As a result, this non-conservative effect is a potential source of systematic uncertainty in testing the no-hair theorem with stellar orbits.
description: Submitted to the Astrophysical Journal
Abnormal grain growth of rutile TiO2 induced by ZrSiO4
Creators: name: Hanaor, D. A. H.
name: Xu, W.
name: Ferry, M.
name: Sorrell, C. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Abnormal grain growth (AGG) was observed in rutile TiO2 formed by the thermal treatment of anatase TiO2 in the presence of zirconium silicate. This morphological behaviour was seen to occur in sintered powder compacts and thin films with solid state zircon dopants and in TiO2 coatings on grains of zircon sand. In order to clarify the mechanism of AGG in this system, various doping methods were employed and the morphological consequences of these doping methods were investigated. It was found that doping by Zr and Si does not give rise to abnormal grain growth. The observed phenomena were discussed in terms of morphological and energetic considerations. It is likely that a distinct orientation relationship between rutile TiO2 and ZrSiO4 and possible grain boundary liquid formation play a role in giving rise to the rapid growth of faceted prismatic rutile.
Cohomological finite generation for the group scheme $SL_2$
Creators: name: van der Kallen, Wilberd
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 14L15, 20G10, 13A50

description: Let $G$ be the group scheme $SL_2$ defined over a noetherian ring $k$. If $G$ acts on a finitely generated commutative $k$-algebra $A$, then $H^*(G,A)$ is a finitely generated $k$-algebra.
description: 8 pages
Equilateral non-Gaussianity from heavy fields
Creators: name: Gong, Jinn-Ouk
name: Pi, Shi
name: Sasaki, Misao
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: FOS: Physical sciences

description: The effect of self-interactions of heavy scalar fields during inflation on the primordial non-Gaussianity is studied. We take a specific constant-turn quasi-single field inflation as an example. We derive an effective theory with emphasis on non-linear self-interactions of heavy fields and calculate the corresponding non-Gaussianity, which is of equilateral type and can be as relevant as those computed previously in the literature. We also derive the non-Gaussianity by directly using the in-in formalism, and verify the equivalence of these two approaches.
description: 17 pages, 1 figure
Untersuchungen zur Trenddetektion und zu hemisphärischen Unterschieden der spektralen UV-Bestrahlungsstärke
Creators: name: Glandorf, Merle
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: UV-Strahlung
subject: Trendanalyse
subject: hemisphärische Unterschiede
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
title: Weight Gain after Interferon-Free Treatment of Chronic Hepatitis C—Results from the German Hepatitis C-Registry (DHC-R)
Creators: name: Schlevogt, Bernhard
name: Böker, Klaus H. W.
name: Mauss, Stefan
name: Klinker, Hartwig
name: Heyne, Renate
name: Link, Ralph
name: Simon, Karl-Georg
name: Sarrazin, Christoph
name: Serfert, Yvonne
name: Manns, Michael P.
name: Wedemeyer, Heiner
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 610 Medicine and health

description: Chronic hepatitis C can be treated very effectively with direct-acting antivirals (DAA) with only minor side effects compared to an interferon-containing treatment regimen. The significance of metabolic comorbidities after HCV cure is not well defined. This study aims to investigate short- and long-term weight change of patients receiving interferon-free antiviral treatment for chronic hepatitis C. The German Hepatitis C-registry (DHC-R) is a national multicenter real-world cohort. A total of 5111 patients were followed prospectively after DAA treatment for up to 3 years. Weight change compared to baseline was analyzed at end of treatment and at years 1, 2, and 3 after completion of antiviral therapy. Regression analysis was performed to identify baseline predictors for weight change. While there was no relevant mean weight change (−0.2 kg, SD 4.3 kg) at the end of antiviral treatment, weight started to increase during long-term follow-up reaching +1.7 kg (SD 8.0 kg, p < 0.001) compared to baseline at 3 years (follow-up year 3, FU3) after completion of antiviral therapy. 48%, 31%, and 22% of patients had a weight gain greater than 1, 3, and 5 kg at FU3, respectively. During follow-up, a body mass index (BMI) <30 proved to be the only consistent predictor for weight gain. DAA treatment is followed by a substantial weight gain (+3 kg or more) in one-third of the patients during long-term follow-up. Non-obese patients seemed to be most vulnerable to weight gain. The body compartment involved in weight gain as well as the mechanism of weight gain remain to be elucidated.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Corporate Social Responsibility and Social Capital Development of the Electricity Generating Authority of Thailand: A Case Study of the Ban Klong Rue Community Hydropower Plant
Creators: name: Banna Wanishayanun
Publisher: name: School of Public Administration, National Institute of Development Administration (NIDA)
Year: 2020
Subjects: Social responsibility
community hydropower plant
social capital

description: Journal of Public and Private Management, 27, 1, 47
When quantum tomography goes wrong: drift of quantum sources and other errors
Creators: name: van Enk, S. J.
name: Blume-Kohout, Robin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The principle behind quantum tomography is that a large set of observations -- many samples from a "quorum" of distinct observables -- can all be explained satisfactorily as measurements on a single underlying quantum state or process. Unfortunately, this principle may not hold. When it fails, any standard tomographic estimate should be viewed skeptically. Here we propose a simple way to test for this kind of failure using Akaike's Information Criterion (AIC). We point out that the application of this criterion in a quantum context, while still powerful, is not as straightforward as it is in classical physics. This is especially the case when future observables differ from those constituting the quorum.
description: To appear in New Journal of Physics, Focus on Quantum Tomography. Two more references added
"Help the patients to help themselves:" social relations of the Kings Park Psychiatric Center, 1914-1965
Creators: name: Stanton, Robyn
Publisher: name: No Publisher Supplied
Year: 2019

description: The former Kings Park Psychiatric Center in Kings Park, New York was founded in 1885 as an extension of the Kings County Lunatic Asylum in a conscious effort to provide a more suitable environment for the mentally ill. This humanitarian foundation served as a catalyst for what would become a self-sustaining community. A common identity was forged between the hospital and the town of Kings Park - an identity which manifested itself in the form of a mutually beneficial relationship that developed and persisted throughout the institution's 111 years of operation. Drawing upon collections of local and regional newspapers and oral histories in conjunction with annual reports and state and federal legislation, this study explores the interconnectivity between the former state hospital and the community as it extended to the patient population. Specifically, the hospital's administrative and spatial arrangement allowed members of the lay public to form both direct and indirect connections with the mentally ill. Such localized dynamics are often obscured in institutional histories surrounding the lived experiences of mental hospitals in 19th- and 20th century America and are deserving of their own analysis. These relationships were encouraged and amended by the hospital's administrative operations, local infrastructure, economic interdependency, and social functions taking place within the public and institutional sphere. This paper also builds upon previous narratives chronicling the hospital's past, while emphasizing that the history of the Kings Park Psychiatric Center should be read as an evolving relationship between the hospital, the community and the patients they served and supported. Unearthing these social relations additionally allows the historical narrative associated with the Kings Park Psychiatric Center to incorporate itself in the broader histories of mental health care services at the state and national level across the twentieth century.
NFDI MatWerk / Materials Data Infrastructure
Creators: name: Stotzka, Rainer
name: Aversa, Rossella
name: Bitzek, Erik
name: Golowin, Nadine
name: Grünwald, Katharina
name: Hunke, Sirieam
name: Joseph, Reetu
name: Moghaddam, Amirreza
name: Ost, Philipp
name: Politze, Marius
name: Shakeel, Yusra
name: Soysal, Mehmet
name: Vitali, Elias
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2022
Subjects: Metadata
NFDI
Materials Science

description: The German National Research Data Infrastructure (NFDI) aims to systematically develop sustainably secure and make accessible the data holdings of science and research. It is being established as a networked structure of consortia acting on their own initiative. In NFDI-MatWerk, a reliable digital platform for the materials and nanosciences is being established, which enables the digital representation of materials data and specific metadata. Within NFDI-MatWerk the Task Area Materials Data Infrastructure will provide services to easily store, share, search, and analyze data and metadata while ensuring data integrity, provenance, and authorship. The concept of FAIR Digital Objects, developed in the Research Data Alliance and in the FAIR Data Commons of HMC, will be utilized to represent data objects. Data sets and metadata documents will be stored in research data repositories and metadata repositories, respectively. Metadata is one of the key elements to implement both human-readable as well as machine-actionable representations of materials-related information. Additional services will be provided for metadata enrichment and annotation, harvesting and indexing, as well as for documenting the provenance of the data objects. Collections of FAIR Digital Objects will be fed into a knowledge graph based on relevant Materials Science and Engineering ontologies connecting materials information and data. Web front-ends will provide access to data, optimized for the particular perspectives of the user groups. Support and training will be provided for the use as well as the operation of the Materials Data Infrastructure services and tools. First adopters of the research data and metadata infrastructures are participant projects providing data sets from various fields that will be transformed into exemplary reference data sets. This research has been supported by the research program ‘Engineering Digital Futures’ of the Helmholtz Association of German Research Centers, the Helmholtz Metadata Collaboration (HMC) Platform, the German National Research Data Infrastructure (NFDI), and the German Research Foundation (DFG).
Lernperspektiven in Krisensituationen - Coaching für den Neuanfang : Forschung und Konzeptentwicklung am Beispiel von Insolvenz
Creators: name: Gregor, Birgit
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Coaching
subject: Insolvenz
subject: kritisches Lebensereignis
subject: Unternehmenskrise
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: [no abstract]
Black Holes and Quantumness on Macroscopic Scales
Creators: name: Flassig, D.
name: Pritzel, A.
name: Wintergerst, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It has recently been suggested that black holes may be described as condensates of weakly interacting gravitons at a critical point, exhibiting strong quantum effects. In this paper, we study a model system of attractive bosons in one spatial dimension which is known to undergo a quantum phase transition. We demonstrate explicitly that indeed quantum effects are important at the critical point, even if the number of particles is macroscopic. Most prominently, we evaluate the entropy of entanglement between different momentum modes and observe it to become maximal at the critical point. Furthermore, we explicitly see that the leading entanglement is between long wavelength modes and is hence a feature independent of ultraviolet physics. If applicable to black holes, our findings substantiate the conjectured breakdown of semiclassical physics even for large black holes. This can resolve long standing mysteries, such as the information paradox and the no-hair theorem.
description: 18 pages, 5 figures
On the periodic solutions of a rigid Dumbbell satellite in a circular orbit
Creators: name: Guirao, Juan L. G.
name: Vera, Juan A.
name: Wade, Bruce A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The aim of the present paper is to provide suficient conditions for the existence of periodic solutions of the perturbed attitude dynamics of a rigid dumbbell satellite in a circular orbit.
description: Accepted for publication in Astrophysics and Space Science. arXiv admin note: substantial text overlap with arXiv:1109.6378 by other authors
Nuclear temperatures from the evaporation fragment spectra and observed anomalies
Creators: name: Ray, A.
name: De, A.
name: Chatterjee, A.
name: Kailas, S.
name: Banerjee, S. R.
name: Banerjee, K.
name: Saha, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The extreme back-angle evaporation spectra of alpha, lithium, beryllium, boron and carbon from different compound nuclei near A=100 (EX=76-210 MeV) have been compared with the predictions of standard statistical model codes such as 'CASCADE' and 'GEMINI'. It was found that the shapes of the alpha spectra agree well with the predictions of the statistical models. However the spectra of lithium, beryllium, boron and carbon show significantly gentler slopes implying higher temperature of the residual nuclei, even though the spectra satisfy all other empirical criteria of statistical emissions. The observed slope anomaly was found to be largest for lithium and decreases at higher excitation energy. These results could not be understood by adjusting the parameters of the statistical models or from reaction dynamics and might require examining the statistical model from a quantum mechanical perspective.
description: 28 pages, 28 Figures, 1 Table; A shorter version has already been published in Physical Review C on June 10, 2013
Relationships of Public Talent Management System (TMS) and Talented Performance: A Case Study of the High Performance and Potential System (HiPPS) of the Office of Civil Service Commission
Creators: name: Nisada Wedchayanon
Publisher: name: School of Public Administration, National Institute of Development Administration (NIDA)
Year: 2020
Subjects: Talent management system
strategy implementation
perceived organizational support
talent performance

description: Journal of Public and Private Management, 27, 1, 111
Analyse und Regelung einer Klasse von modularen Multilevelumrichter-Topologien
Creators: name: Karwatzki, Dennis
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Modular multilevel converter
subject: system analysis
subject: generalized control approach
subject: Modulare Multilevelumrichter
subject: Systemanalyse
subject: verallgemeinerter Regelungsansatz
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: [no abstract]
Grenzflächenanalytik zur Beschreibung der Alterung von automotiven Lithium-Ionen-Zellen
Creators: name: Jahnke, Hannes
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Li-ion battery
subject: aging
subject: solid-electrolyte-interface
subject: Li-Ionen Batterie
subject: Alterung
subject: Passivierungsschicht
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
title: Shear-Thinning in Oligomer Melts—Molecular Origins and Applications
Creators: name: Datta, Ranajay
name: Yelash, Leonid
name: Schmid, Friederike
name: Kummer, Florian
name: Oberlack, Martin
name: Lukáčová-Medvid’ová, Mária
name: Virnau, Peter
Publisher: name: MDPI
Year: 2023

description: We investigate the molecular origin of shear-thinning in melts of flexible, semiflexible and rigid oligomers with coarse-grained simulations of a sheared melt. Entanglements, alignment, stretching and tumbling modes or suppression of the latter all contribute to understanding how macroscopic flow properties emerge from the molecular level. In particular, we identify the rise and decline of entanglements with increasing chain stiffness as the major cause for the non-monotonic behaviour of the viscosity in equilibrium and at low shear rates, even for rather small oligomeric systems. At higher shear rates, chains align and disentangle, contributing to shear-thinning. By performing simulations of single chains in shear flow, we identify which of these phenomena are of collective nature and arise through interchain interactions and which are already present in dilute systems. Building upon these microscopic simulations, we identify by means of the Irving–Kirkwood formula the corresponding macroscopic stress tensor for a non-Newtonian polymer fluid. Shear-thinning effects in oligomer melts are also demonstrated by macroscopic simulations of channel flows. The latter have been obtained by the discontinuous Galerkin method approximating macroscopic polymer flows. Our study confirms the influence of microscopic details in the molecular structure of short polymers such as chain flexibility on macroscopic polymer flows.
Personalverständnis und Mitarbeiterintegration von Weiterbildungsorganisationen
Creators: name: Schunter, Jürgen
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Employee integration
subject: systems theory
subject: organizational identity
subject: Mitarbeiterintegration
subject: Systemtheorie
subject: Organisationsidentität
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: [no abstract]
title: Familiensprache Russisch im Sprachenrepertoire von Jugendlichen während Covid-19: online vs. offline
Creators: name: Atanasoska, Tatjana
name: Sulimova, Maria
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Die Welt ist in den letzten 20 Jahren immer digitaler geworden. Die Kontaktbeschränkungen aufgrund der Corona-Pandemie haben diesen Prozess weiter beschleunigt und die Digitalisierung tief in das Bildungswesen getragen. Diese Studie geht unter diesen veränderten Umständen der Frage nach, wie sich der Sprach(en)gebrauch online und offline bei mehrsprachigen Jugendlichen während und nach der Corona-Pandemie (2022) unterscheidet. Insbesondere betrachten wir die Quantität und die Rolle des Russischen im Leben der jungen Personen. Unsere Publikation zeigt, dass der multimediale Alltag der Jugendlichen on- und offline stark von der mehrsprachigen Lebenswirklichkeit durchdrungen wird. Ein wichtiges Ergebnis ist, dass die Reduktion der Sozialkontakte auf die Kernfamilie während Covid-19 nicht zu einer höheren Verwendung der Familiensprache(n) führte, was den Ergebnissen anderer Studien widerspricht. Die möglichen Gründe dafür in Bezug auf Alter und Lebenswirklichkeit der Jugendlichen werden im Folgenden dargestellt.
Putting Data to Work: Moving science forward together beyond where we thought possible!
Creators: name: Robinson, Erin
Publisher: name: Zenodo
Year: 2020
Subjects: Collaboration
Data stewardship
Earth science

description: We live in a world rich with data, where use and reuse would benefit not just science but also serve national security and society-at-large. Air quality impacts from forest fires, which are increasing in frequency, is one example of large, data-intensive science with societal impacts. Understanding long-range transport of smoke where I started my career and worked with Dr. Greg Leptoukh, for whom this lecture is named, required a variety of datasets from satellite, surface observations and models. Together with Greg, we formed the ESIP Air Quality Cluster, a community of practice, to determine which and how to use data access standards and metadata standards agreed to best support the broader Air Quality research community. Forest fire smoke analysis was based on datasets not originally intended for our purpose, but because the data was findable, accessible, interoperable and reusable (FAIR) and we were willing to reuse it, we reduced the time to wrangle data and were able to ask and answer new questions about each smoke event. Today, we are seeing more and more examples like mine of science that was not possible without open data, standards and tools. However, our scientific data enterprise is evolving and maturing in an unmanaged fashion and due to insufficient coordination across planning, management, and resources, the potential benefits of all these data and distributed infrastructure are not fully realized. Reliable, long term funding as well as cultural changes including financial incentives and rewards are needed to turn Science Data Infrastructure into a first class citizen equal to Science. This talk will explore what it means to put data to work and explore the relationship between data-intensive science, data management and collaborative community efforts like the Earth Science Information Partners (ESIP) and Openscapes to move science forward beyond where we thought possible!
description: This work was funded by NASA, NOAA and USGS.
description: {"references": ["\"Entryways to open data science and the power of welcome\", J. Lowndes 2020 https://youtu.be/HAh7Xy9ReJo?t=1789", "\"Sharing Creativity\", B. Caron 2012 https://www.youtube.com/watch?v=gLIMp0cV87I", "\"Christa Hasenkopf of OpenAQ Pitches at Fast Forward Demo Day\", C. Hasenkopf 2019 https://www.youtube.com/watch?v=BHSD9W-HGOg&feature=youtu.be&t=122", "\"Making Ocean Data Useful\", R. Abernathy 2020 https://youtu.be/He9_2C01Z0I?t=144", "Gladwell, M. (2000). The tipping point: How little things can make a big difference. New York: Little, Brown and Company.", "Moore, G. A. (1991). Crossing the Chasm: Marketing and Selling High-Tech Goods to Mainstream Customers. New York: Harper Business."]}
Entstehung FS-Laser-induzierter stufenartiger Strukturen aufgrund von Laser-Material-Wechselwirkung
Creators: name: Särchen, Emanuel
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Femtosecond laser material interaction
subject: step like structures
subject: hydrogels
subject: digital holographic analysis
subject: Femtosekunden-Laser-Material-Wechselwirkung
subject: stufenartige Strukturen
subject: Photodisruption
subject: Hydrogele
subject: digitale Holographie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]