cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hints on halo evolution in SFDM models with galaxy observations
Creators: name: Gonzalez-Morales, Alma X.
name: Diez-Tejedor, Alberto
name: Urena-Lopez, L. Arturo
name: Valenzuela, Octavio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A massive, self-interacting scalar field has been considered as a possible candidate for the dark matter in the universe. We present an observational constraint to the model arising from strong lensing observations in galaxies. The result points to a discrepancy in the properties of scalar field dark matter halos for dwarf and lens galaxies, mainly because halo parameters are directly related to physical quantities in the model. This is an important indication that it becomes necessary to have a better understanding of halo evolution in scalar field dark matter models, where the presence of baryons can play an important role.
description: 5 pages, 2 figures, 1 table
Finite element study of the accommodation behaviour of the crystalline lens after fs-laser treatment
Creators: name: Besdo, S.
name: Wiegand, J.
name: Hahn, J.
name: Ripken, Tammo
name: Krüger, A.
name: Fromm, M.
name: Lubatschowski, H.
Publisher: name: Berlin : Walter de Gruyter
Year: 2013
Subjects: subject: crystalline lens
subject: fs-Laser
subject: lentotomiy
subject: presbyopia
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: With aging the ability of the crystalline lens to adapt to different viewing distances decreases. Until now there is no satisfying treatment available. It is possible to influence the deformability of the crystalline lens by inducing cuts using femtosecond (fs)-laser. To test the influence of several different cutting geometries is expensive and a huge amount of crystalline lenses is needed. Finit Element Method offers the possibility to test the influence of different cutting geometries on the flexibility. Therefore, it is necessary to develop a method to simulate the cuts in an adequate way. In first simulations cuts were assumed to be isotropic inter layers. Later on, effective material properties for the inter layer were calculated with a homogenization technique. The results confirm the influence of the cuts on the flexibility.
A survey for the missing hydrogen in high redshift radio sources
Creators: name: Curran, S. J.
name: Whiting, M. T.
name: Sadler, E. M.
name: Bignell, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Unlike at lower redshift, where there is a 40% detection rate, surveys for 21-cm absorption arising within the hosts of z > 1 radio galaxies and quasars have been remarkably unsuccessful. Curran et al.(2008) suggest that this is due to the high redshift selection biasing towards the most optically bright objects (those most luminous in the ultra-violetin the rest-frame), where the gas is ionised by the active galactic nucleus. They therefore argue that there must be a population of fainter objects in which the hydrogen is not ionised and which exhibit a similar detection rate as at lower redshifts. In order to find this "missing" gas at high redshift, we have therefore undertaken a survey of z > 2 radio sources, selected by optical faintness. Despite having optical magnitudes which indicate that the targets have ultra-violet luminosities below the threshold where all of the gas is ionised, there were no detections in any of the eight sources for which useable data were obtained. Upon an analysis of the spectral energy distributions, ionising photon rates can only be determined for three of these, all of which suggest that the objects are above the highest luminosity of a current 21-cm detection. The possibility that the other five could be located at lower photon rates cannot be ruled out, although zero detections out of five is not statistically significant. Another possible cause of the non-detections is that our selection biases the sample towards sources which are very steep in the radio band, with a mean spectral index of = -1.0, cf. -0.3 for both the 21-cm detections and UV luminous non-detections. This adds the further possibility that the sources have very extended emission, which would have the effect of reducing the coverage by the putative absorbing gas, thus decreasing the sensitivity of the observation.
description: Accepted by MNRAS
Coronal temperature profiles obtained from kinetic models and from coronal brightness measurements obtained during solar eclipses
Creators: name: Pierrard, V.
name: Borremans, K.
name: Lemaire, J. F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal density, temperature and heat flux distributions for the equatorial and polar corona have been deduced by Lemaire [2012] from Saito's model of averaged coronal white light (WL) brightness and polarization observations. They are compared with those determined from a kinetic collisionless/exospheric model of the solar corona. This comparison indicates rather similar distributions at large radial distances (> 7 Rs) in the collisionless region. However, rather important differences are found close to the Sun in the acceleration region of the solar wind. The exospheric heat flux is directed away from the Sun, while that inferred from all WL coronal observations is in the opposite direction, i.e., conducting heat from the inner corona toward the chromosphere. This could indicate that the source of coronal heating rate extends up into the inner corona where it maximizes at r > 1.5 Rs well above the transition region.
description: 11 pages, 1 figure, A comparison between Exospheric Model and a Hybrid model of the corona based on white light eclipse observations
Wir können uns immer irren. Über Fakten und gefühlte Wahrheiten
Creators: name: Schumacher, Karin
name: Zohlnhöfer, Reimut
Publisher: name: Ruperto Carola
Year: 2017

description: „Die Welt urteilt nach dem Scheine“ – lässt Johann Wolfgang von Goethe seinen Clavigo im gleichnamigen Trauerspiel sagen. Eben nicht nach dem äußeren Schein zu urteilen, den Dingen auf den Grund zu gehen und ihr wahres Sein zu erkennen, kann man als Aufgabe der Wissenschaft beschreiben. Doch lassen sich Sein und Schein tatsächlich immer klar voneinander trennen? Welche Rolle spielt der Irrtum im Forschungsprozess? Wie gehen wir damit um, dass zunehmend „gefühlte Wahrheiten“ an Glaubwürdigkeit gewinnen, wissenschaftliche Fakten dagegen dreist geleugnet werden? Und ist der Wissenschaftsbetrieb selbst nicht zuweilen in Gefahr, dem schönen Schein zu viel Bedeutung beizumessen oder sich von ihm blenden zu lassen? Über ihre Erfahrungen und Einschätzungen sprechen die Zellbiologin Karin Schumacher und der Politikwissenschaftler Reimut Zohlnhöfer.
description: Ruperto Carola, Nr. 11 (2017): Schein & Sein
Vortex dynamics of rotating dipolar Bose-Einstein condensates
Creators: name: Kumar, R. Kishor
name: Muruganandam, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the influence of dipole-dipole interaction on the formation of vortices in a rotating dipolar Bose-Einstein condensate (BEC) of $^{52}$Cr and $^{164}$Dy atoms in quasi two-dimensional geometry. By numerically solving the corresponding time-dependent mean-field Gross-Pitaevskii equation, we show that the dipolar interaction enhances the number of vortices while a repulsive contact interaction increases the stability of the vortices. Further, an ordered vortex lattice of relatively large number of vortices is found in a strongly dipolar BEC.
description: 15 pages, 10 figures, 1 table
Evaluating a Novel Class of Biomaterials: Magnesium-Containing Layered Double Hydroxides
Creators: name: Kieke, Marc D.K.
name: Weizbauer, Andreas
name: Duda, Franziska
name: Badar, Muhammad
name: Budde, Stefan
name: Flörkemeier, Thilo
name: Diekmann, Julia
name: Prenzler, Nils
name: Rahim, Muhammad I.
name: Müller, Peter P.
name: Hauser, Hansjörg
name: Behrens, Sabine
name: Dellinger, Philip
name: Möhwald, Kai
name: Lenarz, Thomas
name: Windhagen, Henning
name: Behrens, Peter
Publisher: name: Berlin: Walter de Gruyter
Year: 2013
Subjects: subject: osteoproliferation
subject: magnesium hydroxide
subject: layered double hydroxides
subject: drug delivery
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Metallic magnesium and compounds such as magnesium hydroxide Mg(OH)2 have been shown to have osteoconductive properties under experimental conditions and are gaining an increasing interest in the field of degradable biomaterials. The application of the compounds as implant coatings could support implant incorporation, resulting in an increased period of use of the implants. A variety of Mg-containing Layered Double Hydroxides (Mg-LDHs) has been synthesized and examined. These materials have been tested in various in vitro and in vivo studies; the latter took place in different sites like in the middle ear or in the condyle of New Zealand White Rabbits. In the latest study newly formed bone could be found around the Mg-Al-CO3-LDH pellets, making it a promising compound for bone-healing applications.
On the effects of optically thick gas (disks) around massive stars
Creators: name: Kuiper, Rolf
name: Yorke, Harold W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Numerical simulations have shown that the often cited radiation pressure barrier to accretion onto massive stars can be circumvented, when the radiation field is highly anisotropic in the presence of a circumstellar accretion disk with high optical depth. Here, these studies of the so-called flashlight effect are expanded by including the opacity of the innermost dust-free but potentially optically thick gas regions around forming massive stars. In addition to frequency-dependent opacities for the dust grains, we use temperature- and density-dependent Planck- and Rosseland mean opacities for the gas. The simulations show that the innermost dust-free parts of the accretion disks are optically thick to the stellar radiation over a substantial fraction of the solid angle above and below the disk's midplane. The temperature in the shielded disk region decreases faster with radius than in a comparison simulation with a lower constant gas opacity, and the dust sublimation front is shifted to smaller radii. The shielding by the dust-free gas in the inner disk thus contributes to an enhanced flashlight effect, which ultimately results in a smaller opening angle of the radiation pressure driven outflow and in a much longer timescale of sustained feeding of the circumstellar disk by the molecular cloud core. We conclude that it is necessary to properly account for the opacity of the inner dust-free disk regions around forming massive stars in order to correctly assess the effectiveness of the flashlight effect, the opening angle of radiation pressure driven outflows, and the lifetime and morphological evolution of the accretion disk.
description: accepted at ApJ
Sie sind Fake News! Ein analytischer Zugang für die Politische Bildung
Creators: name: Hubacher, Manuel
Publisher: name: Springer VS
Year: 2021
Subjects: subject: Politische Bildung
subject: Desinformation
subject: Fake News
subject: Autorität
subject: 320 - Politik
subject: 100 - Philosophie
subject: 370 - Erziehung, Schul- und Bildungswesen

description: Dieser Beitrag greift das Phänomen Fake News auf und plädiert für einen analytischen Zugang zur Thematik. Zunächst grenzt er den Begriff der Fake News von anderen Phänomenen ab. Er zeigt auf, dass der Begriff nicht nur keinen analytischen Mehrwert bietet, sondern dass er die eigentlichen Probleme verschleiert und als Propagandabegriff u.a. Verwendung findet, um Zensur zu rechtfertigen und die Gegenseite zu delegitimieren. Trotzdem sollte die Politische Bildung nicht vollkommen auf den Begriff verzichten. Versteht man Fake News als einen fließenden Signifikant in hegemonischen Projekten, erlaubt dies den Zugriff auf die politische Dimension von Desinformation. Fake News als politischer Kampfbegriff lässt sich darüber hinaus als einen Angriff auf die Autorität der Leitmedien interpretieren. Der Autor geht im Anschluss sowohl auf die inhaltliche als auch auf die formelle Dimension dieses Angriffs ein. Darauf basierend erarbeitet er einen Vorschlag, wie Fake News auf analytischer Basis in der Politischen Bildung behandelt werden könnten.
title: The marginal stability of the metastable TAP states
Creators: name: Plefka, Timm
Publisher: name: IOP Publishing
Year: 2021

description: The existing investigations on the complexity are extended. In addition to the Edward–Anderson parameter q₂ the fourth moment q₄ = 1/NΣᵢmᵢ⁴ of the magnetizations mi is included to the set of constrained variables and the constrained complexity Σ(T; q₂, q₄) is numerical determined. The maximum of Σ(T; q₂, q₄) (representing the total complexity) sticks at the boundary for temperatures at and below a new critical temperature. This implies marginal stability for the nearly all metastable states. The temperature dependence of the lowest value of the Gibbs potential consistent with various physical requirements is presented.
Hypotrochoids in conformal restriction systems and Virasoro descendants
Creators: name: Doyon, Benjamin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A conformal restriction system is a commutative, associative, unital algebra equipped with a representation of the groupoid of univalent conformal maps on connected open sets of the Riemann sphere, and a family of linear functionals on subalgebras, satisfying a set of properties including conformal invariance and a type of restriction. This embodies some expected properties of expectation values in conformal loop ensembles CLE. In the context of conformal restriction systems, we study certain algebra elements associated with hypotrochoid simple curves (including the ellipse). These have the CLE interpretation of being "renormalized random variables" that are nonzero only if there is at least one loop of hypotrochoid shape. Each curve has a center w, a scale ε and a rotation angle θ, and we analyze the renormalized random variable as a function of u=εe^{iθ} and w. We find that it has an expansion in positive powers of u and u*, and that the coefficients of pure u (u*) powers are holomorphic in w (w*). We identify these coefficients (the "hypotrochoid fields") with certain Virasoro descendants of the identity field in conformal field theory, thereby showing that they form part of a vertex operator algebraic structure. This largely generalizes works by the author (in CLE), and the author with his collaborators V. Riva and J. Cardy (in SLE 8/3 and other restriction measures), where the case of the ellipse, at the order u^2, led to the stress-energy tensor of CFT. The derivation uses in an essential way the Virasoro vertex operator algebra structure of conformal derivatives established recently by the author. The results suggest in particular the exact evaluation of CLE expectations of products of hypotrochoid fields as well as non-trivial relations amongst them through the vertex operator algebra, and further shed light onto the relationship between CLE and CFT.
description: 1 figure, 39 pages
Es wird ungemütlich. Unpleasant Design in der Stadt
Creators: name: Savic, Selena
name: Savicic, Gordan
Publisher: name: Nicolai Verlag Berlin
Year: 2021
Subjects: unpleasant design
ungemütlich
Stadt Gestaltung
öffentlicher Räum
Diskriminierung durch Design

description: Unpleasant Design (unangenehmes Design) ist jede absichtlich eingesetzte Gestaltungsform und jeder Gegenstand oder Effekt, der die Nutzung von Gegenständen oder Räumen für eine bestimmte Gruppe von Menschen unmöglich oder schwierig macht. Am häufigsten begegnen wir dem Phänomen bei Stadtmöbeln, deren Gestaltung darauf abzielt, Obdachlose vom Schlafen im öffentlichen Raum abzuhalten: Dazu zählen mittig angebrachte Armlehnen auf Park- oder Bushaltestellenbänken sowie alle Arten von Spitzen und unregelmäßigen, oder auch rutschigen Oberflächen. Auch hochfrequente Geräusche, mit denen Jugendliche irritiert werden sollen, oder blaues Licht, das die Sichtbarkeit von Venen verringert und damit vom Gebrauch von Infektionsdrogen abhalten soll, sind Varianten der Unpleasant Design. Zudem manifestiert sich dieses auf vielen anderen Ebenen, von der Gestaltung von Schaufenstern über ganze Straßenzüge und Stadtteile bis hinein in den digitalen Bereich. Eines der Hauptmerkmale von Unpleasant Design liegt darin, dass es sich auf bestimmte soziale und demografische Bevölkerungsgruppen bezieht: Jugendliche, Drogenabhängige und Obdachlose sind häufig der offizielle Anlass für diese Form des Designs im öffentlichen Raum. Die Strategien treten oft an der Schnittstelle von öffentlichem und privatem Raum auf und ihr Wesen besteht darin, jede Art von Verhandlung zu unterbinden, indem sie gewünschtes Verhalten und die Nutzung des Raumes von vornherein vorschreiben. In den politischen Programmen der Regierungen würde es zwar niemals so formuliert werden: Dennoch ist Unpleasant Design im Grunde eine Top-down-Lösung, die impliziert, dass Bürgerbeteiligung bei der Gestaltung von öffentlich zugänglichen Räumen und Dienstleistungen keine Rolle spielt.
Centrality dependence of freeze-out parameters from the beam energy scan at STAR
Creators: name: Das, Sabita
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The STAR experiment at RHIC has a unique capability of measuring identified hadrons over a wide range of pseudorapidity ($η$), transverse momentum ($p_{T}$), and azimuthal angle ($ϕ$) acceptance. The data collected ($\sqrt{s_{NN}}$ = 7.7, 11.5, and 39 GeV) in its beam energy scan (BES) program provide a chance to investigate the final hadronic state freeze-out conditions of ultrarelativistic Au+Au collisions. The particle ratios are used to compare to a statistical model calculation using both grand canonical and strangeness canonical ensembles to extract the chemical freeze-out parameters. The $p_{T}$ distributions are fitted to calculations using a blast-wave model to obtain the kinetic freeze-out parameters. We discuss the centrality dependence of the extracted chemical and kinetic freeze-out parameters at these lower energies.
description: 4 pages, 9 figures, Quark Matter 2012 proceedings
Optimization of a test setup for examining blood damage caused by high shear forces
Creators: name: Kortlepel, Rieke
name: Krolitzki, Benjamin
name: Müller, Marc
name: Glasmacher, Birgit
Publisher: name: Berlin : Walter de Gruyter
Year: 2012
Subjects: subject: biomaterial
subject: biocompatibility
subject: blood pump
subject: blood damage
subject: human body
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: If blood pumps are applied in the human body or extracorporeal, blood damage can be caused by shear forces that act on the blood during the delivery. For an accelerated development of blood pumps with help of simulations there is a need for reliable limit values for shear forces. To determine these limit values a shear force test setup was built at the Institute for Multiphase Processes. In the context of the presented master thesis the former test setup peripheral devices were evaluated, possible blood damage mechanisms were considered, blood analysis in different experiments to identify the blood damage caused by different elements were made and peripheral devices were replaced. At the same time the shear chamber was constructional reengineered in a project thesis [1]. We were able to show, that in former works the blood damage caused by test setup peripheral devices had heterodyned the results. Finally the test setup was rebuilt with the results and a test was made. Two findings of the thesis are a reduction of about 60% of the number of components in the blood-conveying tube system and an application of a new fluid seal.
title: Antimicrobial resistant and enteropathogenic bacteria in 'filth flies': a cross‑sectional study from Nigeria
Creators: name: Onwugamba, Francis Chinedu
name: Mellmann, Alexander
name: Nwaugo, Victor Oluoha
name: Süselbeck, Benno
name: Schaumburg, Frieder
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: 'Filth flies' facilitate the dispersal of pathogens between animals and humans. The objective was to study the intestinal colonization with antimicrobial resistant and enteropathogenic bacteria in 'filth flies' from Nigeria. Flies from Southern Nigeria were screened for extended-spectrum β-lactamase producing Enterobacterales (ESBL-E), Staphylococcus aureus, Salmonella sp., Shigella sp., Campylobacter sp. and Yersinia enterocolitica by culture. ESBL-E were tested for bla_SHV, bla_CTX-M and bla_TEM; S. aureus was screened for enterotoxins. Spa typing and multilocus sequence typing (MLST) was done for S. aureus and MLST for Escherichia coli. Of 2,000 flies, 400 were randomly collected for species identification. The most common species were Musca domestica (44.8%, 179/400), Chrysomya putoria (21.6%, 85/400) and Musca sorbens (18.8%, 75/400). Flies were colonized with S. aureus (13.8%, 275/2,000) and ESBL-E (0.8%, 16/2,000). No other enteropathogenic bacteria were detected. The enterotoxin sei was most common (26%, 70/275) in S. aureus, followed by sea (12%, n = 32/275). Four S. aureus isolates were methicillin resistant (mecA positive, t674 and t5305, ST15). The bla_CTX-M (n = 16) was the most prevalent ESBL subtype, followed by bla_TEM (n = 8). 'Filth flies' can carry antimicrobial resistant bacteria in Nigeria. Enterotoxin-positive S. aureus might be the main reason for food poisoning by 'filth flies' in the study area.
description: Finanziert über die DEAL-Vereinbarung mit Wiley 2019-2022.
Jenseits unserer Vorstellung. Die Geometrie der Scheibe
Creators: name: Wienhard, Anna
Publisher: name: Ruperto Carola
Year: 2017

description: Die Entdeckung der „hyperbolischen Geometrie“ hat die Mathematik revolutioniert, eine neue Welt tat sich auf. Die Forscher führten dabei neue Geometrien ein, die so wie die hyperbolische Geometrie selbst fern von Anschauung sind. Am mathematischen Institut der Universität Heidelberg beschäftigen sich Wissenschaftler mit Räumen beliebiger Dimension und deren Eigen schaften, wobei sich die geometrischen Eigenschaften dieser Räume gehörig von den Eigenschaften des „Euklidischen Raums“ unter scheiden, den wir aus der Schulmathematik kennen.
description: Ruperto Carola, Nr. 11 (2017): Schein & Sein
Spinning Quality of Cotton Gleaned from the Ground by Machine
Creators: name: Carter, Lyle M.
name: Stedronsky, Victor
name: Mullikin, Robert A.
name: Ross, John E.
name: Carter, Lyle M.
name: Stedronsky, Victor
name: Mullikin, Robert A.
name: Ross, John E.
Publisher: name: Unknown
Year: 1971
Subjects: subject: Consumer/Household Economics
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report: The quality and spinning performance of Acala 4-42 variety cotton mechanically reclaimed from the ground was evaluated from a single field in the San Joaquin Valley of California in 1965. The test compared the lint and yarn qualities of three sources of cotton: (1) First pick with a spindle picker when 75 to 85 percent of the bolls were open; (2) second pick with the same machine 35 days later; and (3) gleaning with a notched belt gleaner 3 months after first pick. The objective of this research was to determine the relative quality of cotton gleaned from the ground with a notched-belt machine, equipped with seed cotton cleaning machinery, 60 to 90 days after first pick, and after rains as compared with first- and second-pick cotton.
Aspects of nitrogen use efficiency of cauliflower I. A simulation modelling based analysis of nitrogen availability under field conditions
Creators: name: Kage, H.
name: Alt, C.
name: Stützel, H.
Publisher: name: Cambridge : Cambridge University Press
Year: 2003
Subjects: subject: crop plant
subject: nitrogen
subject: nutrient availability
subject: nutrient use
subject: soil water
subject: Brassica oleracea var. botrytis
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: Data from several field experiments (eight crops grown under a widely varying nitrogen supply on a loess loam soil) were used for a simulation modelling based analysis of nitrogen availability of cauliflower. The model was built out of components describing root growth, nitrate transport to the roots and the vertical nitrate transport within the soil. Root observations obtained over 2 years indicated an increased fraction of dry matter allocated to the fine roots under N deficiency. An adapted version of a root growth model for cauliflower described the rooting data with an R2 = 0.75. Based upon an acceptable description of the soil water budget, vertical nitrate movement during the growth period of cauliflower was accurately described. The magnitude of this movement, however, was limited to soil depths of about 60 cm even after periods of high rainfall, because of a high soil water holding capacity. An analysis of the factors determining nitrate availability indicated that apparent mass flow was only of high importance for conditions of extremely high N supply where high amounts of nitrate nitrogen remain in the soil up to the end of the growing season. Otherwise, the dominating fraction of nitrate has to be transported to the roots by diffusion. Single root model based calculations of maximum nitrate transport to roots overestimated N availability as indicated by estimates of critical soil nitrate N that were too low. The introduction of a restricted uptake activity period of the roots was used to bridge the gap between theoretical calculations and empirical results. Scenario calculations were carried out to obtain functional relationships between N supply and residual soil nitrate levels for different soil conditions and management practices.
The INTEGRAL/IBIS AGN catalogue I: X-ray absorption properties versus optical classification
Creators: name: Malizia, A.
name: Bassani, L.
name: Bazzano, A.
name: Bird, A. J.
name: Masetti, N.
name: Panessa, F.
name: Stephen, J. B.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this work we present the most comprehensive INTEGRAL AGN sample which lists 272 objects. Here we mainly use this sample to study the absorption properties of active galaxies, to probe new AGN classes and to test the AGN unification scheme. We find that half (48%) of the sample is absorbed while the fraction of Compton thick AGN is small (~7%). In line with our previous analysis, we have however shown that when the bias towards heavily absorbed objects which are lost if weak and at large distance is removed, as it is possible in the local Universe, the above fractions increase to become 80% and 17%. We also find that absorption is a function of source luminosity, which implies some evolution in the obscuration properties of AGN. Few peculiar classes, so far poorly studied in the hard X-ray band, have been detected and studied for the first time such as 5 XBONG, 5 type 2 QSOs and 11 LINERs. In terms of optical classification, our sample contains 57% of type 1 and 43% of type 2 AGN; this subdivision is similar to that found in X-rays if unabsorbed versus absorbed objects are considered, suggesting that the match between optical and X-ray classification is overall good. Only a small percentage of sources (12%) does not fulfill the expectation of the unified theory as we find 22 type 1 AGN which are absorbed and 10 type 2 AGN which are unabsorbed. Studying in depth these outliers we found that most of the absorbed type 1 AGN have X-ray spectra characterized by either complex or warm/ionized absorption more likely due to ionized gas located in an accretion disk wind or in the biconical structure associated to the central nucleus, therefore unrelated to the toroidal structure. Among 10 type 2 AGN which resulted to be unabsorbed, at most 3-4% is still eligible to be classified as a "true" type 2 AGN.
description: 21 pages, 6 figures, 5 tables. Accepted for publication on MNRAS. arXiv admin note: text overlap with arXiv:0709.2077 by other authors
Comparison between simulation results and DEXA investigation of the bone remodelling after implanting a cementless long stem hip prosthesis
Creators: name: Almohallami, Amer
name: Bouguecha, Anas
name: Stukenborg-Colsman, Christina
name: Lerch, M.
name: Nolte, I.
name: Behrens, Bernd-Arno
Publisher: name: Berlin : Walter de Gruyter
Year: 2013
Subjects: subject: stress shielding
subject: FEM
subject: bone remodeling
subject: DEXA
subject: periprosthetic femur
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Bone remodelling around a femoral prosthesis is one of the main reasons of aseptic loosening of the implant’s stem. The difference in stiffness between the bone tissue and the prosthesis leads to unload the periprosthetic bone and thus to decrease the bone mineral density (BMD), which is known as stress shielding. This paper represents a comparison between measured changes in (BMD) in a periprosthetic Femur with a cementless Bicontact stem by prospective dualenergy X-ray absorptiometry study (DEXA)and calculated changes of the (BMD) using a finite element method (FEM). As a result, it is determined that the total deviation between the two investigations is about 18%.
Flucht in die Scheinwelt? Risikoverhalten bei Jugendlichen
Creators: name: Resch, Franz
name: Kaess, Michael
Publisher: name: Ruperto Carola
Year: 2017

description: Die Flucht in Selbstbespiegelung, Selbstverletzung oder medialen Risikokonsum ist eine Flucht in Scheinwelten, mit der Jugendliche in Problemsituationen die reale Welt auszuhalten versuchen. Virtuelle Sozialräume spielen dabei eine zunehmend große Rolle. Die Heidelberger „Ambulanz für Risikoverhalten und Selbstschädigung“ will nicht nur junge Menschen durch die virtuelle Welt begleiten und sie dabei unter stützen, Sein und Schein kritisch zu unterscheiden, sondern sie will das Internet aktiv einbe ziehen und als Plattform nutzen, um Jugendliche mit riskantem oder selbstschädigendem Verhalten zu erreichen und ihnen Hilfen anzubieten.
description: Ruperto Carola, Nr. 11 (2017): Schein & Sein
A search for the hidden population of AM CVn binaries in the Sloan Digital Sky Survey
Creators: name: Carter, P. J.
name: Marsh, T. R.
name: Steeghs, D.
name: Groot, P. J.
name: Nelemans, G.
name: Levitan, D.
name: Rau, A.
name: Copperwheat, C. M.
name: Kupfer, T.
name: Roelofs, G. H. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the latest results from a spectroscopic survey designed to uncover the hidden population of AM Canum Venaticorum (AM CVn) binaries in the photometric database of the Sloan Digital Sky Survey (SDSS). We selected ~2000 candidates based on their photometric colours, a relatively small sample which is expected to contain the majority of all AM CVn binaries in the SDSS (expected to be ~50). We present two new candidate AM CVn binaries discovered using this strategy: SDSS J104325.08+563258.1 and SDSS J173047.59+554518.5. We also present spectra of 29 new cataclysmic variables, 23 DQ white dwarfs and 21 DZ white dwarfs discovered in this survey. The survey is now approximately 70 per cent complete, and the discovery of seven new AM CVn binaries indicates a lower space density than previously predicted. From the essentially complete g <= 19 sample, we derive an observed space density of (5 +/- 3) x10^-7 pc^-3; this is lower than previous estimates by a factor of 3. The sample has been cross-matched with the GALEX All-Sky Imaging Survey database, and with Data Release 9 of the UKIRT (United Kingdom Infrared Telescope) Infrared Deep Sky Survey (UKIDSS). The addition of UV photometry allows new colour cuts to be applied, reducing the size of our sample to ~1100 objects. Optimising our followup should allow us to uncover the remaining AM CVn binaries present in the SDSS, providing the larger homogeneous sample required to more reliably estimate their space density.
description: 19 pages, 14 figures. Accepted for publication in MNRAS
Modulation of the electron transfer processes in Au-ZnO nanostructures
Creators: name: Aguirre, Matias E.
name: Armanelli, A.
name: Perelstein, Gonzalo
name: Feldhoff, Armin
name: Tolley, Alfredo J.
name: Grela, Maria A.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2015
Subjects: subject: surface-plasmon resonance
subject: induced charge separation
subject: visible-light activity
subject: metal nanoparticles
subject: gold nanoparticles
subject: chemistry determines
subject: relaxation dynamics
subject: hot-electrons
subject: tio2 films
subject: zinc-oxide
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Plasmonic nanostructures comprising Au and ZnO nanoparticles synthesized by the spontaneous reduction of HAuCl4 in ethylene glycol were used to assess the possibility of modulating the direction of the electron transfer processes at the interface. One electron UV reduction and visible oxidation of the reversible couple TEMPOL/TEMPOL-H was confirmed by EPR spectroscopy. The apparent quantum yield for TEMPOL-H conversion under continuous wave visible excitation depends on the irradiation wavelength, being 0.57% and 0.27% at 450 ± 12 and 530 ± 12 nm, respectively. These results indicate that both the surface plasmon resonance and the interband transition from the 5d to the 6s level of Au nanoparticles contribute to the visible activity of the nanostructure. In addition, by detecting free electron conduction band electrons in ZnO, after the visible excitation of Au/ZnO nanostructures, we provide direct evidence of the photoexcited electron transfer from gold nanoparticles to ZnO.
Schloss Fürfeld
Creators: name: Fleck, Walther-Gerd
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2019

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 46, Nr. 3 (2005): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Agauopsis bathyalis Bartsch 1989
Creators: name: Chatterjee, Tapas
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Halacaridae
Agauopsis
Agauopsis bathyalis

description: Agauopsis bathyalis Bartsch, 1989 Record from more than 1000 m depth – PTW - South west of Lifou, off New Caledonia, 21° S 167° E, 1380 m depth — Bartsch (1989). Remarks – This species lacks cornea and eye pigment but other characters like outline of idiosoma, gnathosoma, legs, sculpturing of integuments do not suggest that this species is specialised to life in deep sea abyssal zone (Bartsch 1989).
description: Published as part of Chatterjee, Tapas, 2021, A checklist of deep-sea halacarid mites (Acari, Halacaridae) found from more than 1000 m depth, pp. 249-268 in Persian Journal of Acarology 10 (23) on page 252, DOI: 10.22073/pja.v10i3.67563, http://zenodo.org/record/5235720
description: {"references": ["Bartsch, I. (1989) Deep-sea mites (Halacaridae, Acari), from the southwestern Pacific. Cahiers de Biologie Marine, 30: 455 - 471."]}
Additional file 2 of Visit-to-visit variability of serum uric acid measurements and the risk of all-cause mortality in the general population
Creators: name: Tian, Xue
name: Wang, Anxin
name: Zuo, Yingting
name: Chen, Shuohua
name: Zhang, Licheng
name: Wu, Shouling
name: Luo, Yanxia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Figure S2. Flowchart of the study.
Deep blank field catalogue for medium- and large-size telescopes
Creators: name: Jiménez-Esteban, F. M.
name: Cabrera-Lavers, A.
name: Cardiel, N.
name: Alacid, J. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The observation of blank fields, defined as regions of the sky that are devoid of stars down to a given threshold magnitude, constitutes one of the most relevant calibration procedures required for the proper reduction of astronomical data obtained following typical observing strategies. In this work, we have used the Delaunay triangulation to search for deep blank fields throughout the whole sky, with a minimum size of 10 arcmin in diameter and an increasing threshold magnitude from 15 to 18 in the R band of the USNO-B Catalog of the United States Naval Observatory. The result is a catalogue with the deepest blank fields known so far. A short sample of these regions has been tested with the 10.4m Gran Telescopio Canarias, and it has been shown to be extremely useful for medium and large size telescopes. Because some of the regions found could also be suitable for new extragalactic studies, we have estimated the galactic extinction in the direction of each deep blank field. This catalogue is accessible through the Virtual Observatory tool TESELA, and the user can retrieve - and visualize using Aladin - the deep blank fields available near a given position in the sky.
description: Accepted fro publicatin in MNRAS
Impact of sex and gender on COVID-19 outcomes in Europe
Creators: name: Gebhard, Catherine
name: Regitz-Zagrosek, Vera
name: Neuhauser, Hannelore K.
name: Morgan, Rosemary
name: Klein, Sabra L.
Publisher: name: Robert Koch-Institut
Year: 2020
Subjects: subject: Gender
subject: Sex
subject: COVID-19
subject: Renin angiotensin aldosterone system
subject: Immune system
subject: 610 Medizin und Gesundheit

description: Emerging evidence from China suggests that coronavirus disease 2019 (COVID-19) is deadlier forinfected men than women with a 2.8% fatality rate being reported in Chinese men versus 1.7% in women. Further,sex-disaggregated data for COVID-19 in several European countries show a similar number of cases between thesexes, but more severe outcomes in aged men. Case fatality is highest in men with pre-existing cardiovascularconditions. The mechanisms accounting for the reduced case fatality rate in women are currently unclear but mayoffer potential to develop novel risk stratification tools and therapeutic options for women and men.
Magnesium as a biomaterial and its biological interactions
Creators: name: Evertz, F.
name: Hauser, Hansjörg
name: Müller, P.P.
name: Kietzmann, Manfred
name: Maier, Hans Jürgen
name: Glasmacher, Birgit
Publisher: name: Berlin : Walter de Gruyter
Year: 2013
Subjects: subject: magnesium
subject: degradation
subject: implant
subject: biomaterial
subject: in vitro
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: To investigate different magnesium alloys as a biodegradable material for implants it is necessary to understand the degradation process in the biological environment. The following study shows interactions of pure magnesium with various physical and chemical environmental parameters according to the parameters within the application area.
Ethical Reflection Must Always be Measured
Creators: name: Braun, Kathrin
name: Herrmann, Svea Luise
name: Könninger, Sabine
name: Moore, Alfred
Publisher: name: London : SAGE Publications Ltd.
Year: 2010
Subjects: subject: governmental ethics regimes
subject: politics of talk
subject: public bioethics
subject: reflexive government
subject: scientific governance
subject: Dewey Decimal Classification::100 | Philosophie
subject: Dewey Decimal Classification::600 | Technik

description: The article analyses what we term governmental ethics regimes as forms of scientific governance. Drawing from empirical research on governmental ethics regimes in Germany, Franceand the UK since the early 1980s, it argues that these governmental ethics regimes grew out of the technical model of scientific governance, but have departed from it in crucial ways. It asks whether ethics regimes can be understood as new "technologies of humility" (Jasanoff) and answers the question with a "yes, but". Yes, governmental ethics regimes have incorporated features that go beyond technologies of prediction and control, but the overcoming of the technical model also bears some ambivalence that needs to be understood. The article argues that governmental ethics regimes can be understood as a form of "reflexive government" (Dean) in that the commitment to techno-scientific innovation is stabilized not through an elitist, technocratic exclusion of non-scientific actors and knowledges or a depreciation of normative and emotional dimensions, but through their inclusion, involvement and mobilization. © The Author(s) 2010.
Herschel-ATLAS/GAMA: a difference between star-formation rates in strong-line and weak-line radio galaxies
Creators: name: Hardcastle, M. J.
name: Ching, J. H. Y.
name: Virdee, J. S.
name: Jarvis, M. J.
name: Croom, S. M.
name: Sadler, E. M.
name: Mauch, T.
name: Smith, D. J. B.
name: Stevens, J. A.
name: Baes, M.
name: Baldry, I. K.
name: Brough, S.
name: Cooray, A.
name: Dariush, A.
name: De Zotti, G.
name: Driver, S.
name: Dunne, L.
name: Dye, S.
name: Eales, S.
name: Hopwood, R.
name: Liske, J.
name: Maddox, S.
name: Michalowski, M. J.
name: Rigby, E. E.
name: Robotham, A. S. G.
name: Steele, O.
name: Thomas, D.
name: Valiante, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have constructed a sample of radio-loud objects with optical spectroscopy from the Galaxy and Mass Assembly (GAMA) project over the Herschel-ATLAS Phase 1 fields. Classifying the radio sources in terms of their optical spectra, we find that strong-emission-line sources (`high-excitation radio galaxies') have, on average, a factor ~4 higher 250-micron Herschel luminosity than weak-line (`low-excitation') radio galaxies and are also more luminous than magnitude-matched radio-quiet galaxies at the same redshift. Using all five H-ATLAS bands, we show that this difference in luminosity between the emission-line classes arises mostly from a difference in the average dust temperature; strong-emission-line sources tend to have comparable dust masses to, but higher dust temperatures than, radio galaxies with weak emission lines. We interpret this as showing that radio galaxies with strong nuclear emission lines are much more likely to be associated with star formation in their host galaxy, although there is certainly not a one-to-one relationship between star formation and strong-line AGN activity. The strong-line sources are estimated to have star-formation rates at least a factor 3-4 higher than those in the weak-line objects. Our conclusion is consistent with earlier work, generally carried out using much smaller samples, and reinforces the general picture of high-excitation radio galaxies as being located in lower-mass, less evolved host galaxies than their low-excitation counterparts.
description: 19 pages, 10 colour figures. Accepted by MNRAS
Income Tax Compliance Costs of Working Individuals: Empirical Evidence from Germany
Creators: name: Blaufus, Kay
name: Eichfelder, Sebastian
name: Hundsdoerfer, Jochen
Publisher: name: London : SAGE Publications Ltd.
Year: 2014
Subjects: subject: compliance burden
subject: personal income tax
subject: tax complexity
subject: tax compliance costs
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: We analyze the compliance costs of individual taxpayers resulting from the German income tax (tax year 2007). Using survey data that have been raised between December 2008 and April 2009, we find evidence for a considerably higher cost burden of self-employed taxpayers. Taxable income and a higher education (university degree) are positively correlated with compliance costs, while the time effort of female taxpayers is significantly lower. By contrast, joint filing of married couples reduces the burden of tax compliance. The aggregate cost estimate of German income taxpayers amounts to €6 to €9 billion, respectively, 3.1 to 4.7 percent of the income tax revenue in 2007. This estimate is higher than latest projections in a number of other European countries like Spain and Sweden, but lower than estimates for the United States and Australia. © The Author(s) 2013.
Bathyhalacarus sordidus Bartsch 1989
Creators: name: Chatterjee, Tapas
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Halacaridae
Bathyhalacarus
Bathyhalacarus sordidus

description: Bathyhalacarus sordidus Bartsch, 1989 Record from more than 1000 m depth – PTW - South west of Lifou, off New Caledonia, 21° S 167° E, 1380 m depth — Bartsch (1989). Remarks – This species has a very podgy idiosoma and long slender legs - longer than idiosoma, posterior legs longer than anterior.
description: Published as part of Chatterjee, Tapas, 2021, A checklist of deep-sea halacarid mites (Acari, Halacaridae) found from more than 1000 m depth, pp. 249-268 in Persian Journal of Acarology 10 (23) on page 253, DOI: 10.22073/pja.v10i3.67563, http://zenodo.org/record/5235720
description: {"references": ["Bartsch, I. (1989) Deep-sea mites (Halacaridae, Acari), from the southwestern Pacific. Cahiers de Biologie Marine, 30: 455 - 471."]}
Radiation from charges in the continuum limit
Creators: name: Ianconescu, Reuven
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: It is known that an accelerating charge radiates according to Larmor formula. On the other hand, any DC current following a curvilinear path, e.g. a circular loop, consists of accelerating charges, but in such case the radiated power is 0. The scope of this paper is to analyze and quantify how the radiation vanishes when one goes to the continuum DC limit.
description: 34 pages, 13 figures