cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The rate and latency of star formation in dense, massive clumps in the Milky Way
Creators: name: Heyer, M.
name: Gutermuth, R.
name: Urquhart, J. S.
name: Csengeri, T.
name: Wienen, M.
name: Leurini, S.
name: Menten, K.
name: Wyrowski, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Newborn stars form within the localized, high density regions of molecular clouds. The sequence and rate at which stars form in dense clumps and the dependence on local and global environments are key factors in developing descriptions of stellar production in galaxies. We seek to observationally constrain the rate and latency of star formation in dense massive clumps that are distributed throughout the Galaxy and to compare these results to proposed prescriptions for stellar production. A sample of 24 micron-based Class~I protostars are linked to dust clumps that are embedded within molecular clouds selected from the APEX Telescope Large Area Survey of the Galaxy. We determine the fraction of star-forming clumps, f*, that imposes a constraint on the latency of star formation in units of a clump's lifetime. Protostellar masses are estimated from models of circumstellar environments of young stellar objects from which star formation rates are derived. Physical properties of the clumps are calculated from 870 micron dust continuum emission and NH_3 line emission. Linear correlations are identified between the star formation rate surface density, Sigma_{SFR}, and the quantities Sigma_{H2}/tau_{ff} and Sigma_{H2}/tau_{cross}, suggesting that star formation is regulated at the local scales of molecular clouds. The measured fraction of star forming clumps is 23%. Accounting for star formation within clumps that are excluded from our sample due to 24 micron saturation, this fraction can be as high as 31%. Dense, massive clumps form primarily low mass (< 1-2 msun) stars with emergent 24 micron fluxes below our sensitivity limit or are incapable of forming any stars for the initial 70% of their lifetimes. The low fraction of star forming clumps in the Galactic center relative to those located in the disk of the Milky Way is verified.
description: Accepted for publication in Astronomy and Astrophysics, 16 pages, 10 figures, 4 tables
Mid-infrared interferometry of 23 AGN tori: On the significance of polar-elongated emission
Creators: name: López-Gonzaga, N.
name: Burtscher, L.
name: Tristram, K. R. W.
name: Meisenheimer, K.
name: Schartmann, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. Detailed high resolution studies of AGN with mid-infrared (MIR) interferometry have revealed parsec-sized dust emission elongated in the polar direction in four sources. Aims. Using a larger, coherently analyzed sample of AGN observed with MIR interferometry, we aim to identify elongated mid-infrared emission in a statistical sample of sources. More specifically we wish to determine if there is indeed a preferred direction of the elongation and whether this direction is consistent with a torus-like structure or with a polar emission. Methods. We investigate the significance of the detection of an elongated shape in the MIR emission by fitting elongated Gaussian models to the interferometric data at 12 um. We pay special attention to 1) the uncertainties caused by an inhomogeneous (u,v) coverage, 2) the typical errors in the measurements and 3) the spatial resolution achieved for each object. Results. From our sample of 23 sources we are able to find elongated parsec-scale MIR emission in five sources: three type 2s, one type 1i and one type 1. Elongated emission in four of these sources has been published before; NGC5506 is a new detection. The observed axis ratios are typically around 2 and the position angle of the 12 um emission for all the elongated sources seems to be always closer to the polar axis of the system than to the equatorial axis. Two other objects, NGC4507 and MCG-5-23-16 with a reasonably well mapped (u,v) coverage and good signal-to-noise ratios, appear to have a less elongated 12 um emission. Conclusions. Our finding that sources showing elongated mid-infrared emission are preferentially extended in polar direction sets strong constraints on torus models or implies that both the torus and the NLR/outflow region have to be modeled together. Especially also models used for SED fitting will have to be revised to include emission from polar dust.
description: 12 pages, 6 figures. Accepted for publication on A&A
Imaging of peripheral vascular malformations : current concepts and future perspectives
Creators: name: Schmidt, Vanessa F.
name: Masthoff, Max
name: Czihal, Michael
name: Cucuruz, Beatrix
name: Häberle, Beate
name: Brill, Richard
name: Wohlgemuth, Walter A.
name: Wildgruber, Moritz
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 610

description: Vascular Malformations belong to the spectrum of orphan diseases and can involve all segments of the vascular tree: arteries, capillaries, and veins, and similarly the lymphatic vasculature. The classification according to the International Society for the Study of Vascular Anomalies (ISSVA) is of major importance to guide proper treatment. Imaging plays a crucial role to classify vascular malformations according to their dominant vessel type, anatomical extension, and flow pattern. Several imaging concepts including color-coded Duplex ultrasound/contrast-enhanced ultrasound (CDUS/CEUS), 4D computed tomography angiography (CTA), magnetic resonance imaging (MRI) including dynamic contrast-enhanced MR-angiography (DCE-MRA), and conventional arterial and venous angiography are established in the current clinical routine. Besides the very heterogenous phenotypes of vascular malformations, molecular and genetic profiling has recently offered an advanced understanding of the pathogenesis and progression of these lesions. As distinct molecular subtypes may be suitable for targeted therapies, capturing certain patterns by means of molecular imaging could enhance non-invasive diagnostics of vascular malformations. This review provides an overview of subtype-specific imaging and established imaging modalities, as well as future perspectives of novel functional and molecular imaging approaches. We highlight recent pioneering imaging studies including thermography, positron emission tomography (PET), and multispectral optoacoustic tomography (MSOT), which have successfully targeted specific biomarkers of vascular malformations.
Quantum Theory of Lee-Naughton-Lebed's Angular Effect in Strong Electric Fields
Creators: name: Lebed, Andrei G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Some time ago, Kobayashi et al. experimentally studied the so-called Lee-Naughton-Lebed's (LNL) angular effect in strong electric fields [K. Kobayashi, M. Saito, E. Omichi, and T. Osada, Phys. Rev. Lett. \textbf{96}, 126601 (2006)]. They found that strong electric fields split the LNL conductivity maxima in $α$-(ET)$_2$-based organic conductor and hypothetically introduced the corresponding equation for conductivity. In this Letter, for the first time we suggest quantum mechanical theory of the LNL angular oscillations in moderately strong electric fields. In particular, we demonstrate that the obtained by us approximate theoretical formula coincides with the hypothetical one and well describes the above mentioned experiments.
description: 1 figure
Senecio pindilicensis Hieronymus 1894
Creators: name: Calvo, Joel
name: Freire, Efraín
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Senecio
Senecio pindilicensis

description: 15. Senecio pindilicensis Hieronymus (1894: 65). Type:— ECUADOR. Cañar, Pindilic prov. Cuenca [Pindilig], F.C. Lehmann 4914 (lectotype: K-000497739 digital image!, designated here; isolectotype: MO-714304 (fragment) digital image!)
 Gynoxys heterophylla Turczaninow (1851b:85), non Senecio heterophyllus Thunberg (1800:157). Aetheolaena heterophylla (Turczaninow) Nordenstam (1978: 54). Lasiocephalus heterophyllus (Turczaninow) Cuatrecasas (1978: 310). Type:— ECUADOR. Andibus Quitensibus, W. Jameson 894–896 (lectotype: KW-001001524 digital image!, designated here; isolectotypes: US-00122906 digital image!).
 Senecio hypomallus Benoist (1936: 809). Type:— ECUADOR. Pichincha, vallée de Lloa, 3 Jul 1930, R. Benoist 2719 (holotype: P-02273081 digital image!).
 Nomenclatural notes: —Under Senecio, the correct epithet for this species is pindilicensis since the earlier heterophyllus is unavailable because of the existence of the earlier name S. heterophyllus Thunberg (1800: 157).
 We lectotypify the name S. pindilicensis Hieronymus (1894: 65) on the complete specimen K-000497739, which perfectly matches the protologue information of the species. The isolectotype MO-714304 is only a plant fragment (one capitulum) along with a picture of the destroyed specimen that was kept at B, and therefore scantly taxonomically informative.
 Distribution: — Ecuador.
description: Published as part of Calvo, Joel & Freire, Efraín, 2016, A nomenclator of Senecio group Lasiocephalus (Compositae, Senecioneae): nomenclatural and taxonomic notes and new typifications, pp. 116-130 in Phytotaxa 260 (2) on page 125, DOI: 10.11646/phytotaxa.260.2.2, http://zenodo.org/record/13672694
Role of the auditory thalamus and cholinergic basal forebrain in lesion-induced plasticity in the adult auditory cortex
Creators: name: Kamke., Marc R.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field. Winner of the Mollie Holman Doctoral Medal for Excellence
Conditional Pulse Nulling Receiver for Multi-pulse PPM and Binary Quantum Coding Signals
Creators: name: Zuo, Yuan
name: Chen, Tian
name: Zhu, Bing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Conditional pulse nulling (CPN) receiver is proposed by Dolinar to discriminate pulse position modulation (PPM) signals. The receiver using a beam splitter and an on-off photon detector can outperform the standard quantum limit (SQL) for PPM signals. In this paper, we apply this receiver to multi-pulse PPM (MPPM) and binary quantum coding signals, and use dynamic programming algorithm to optimize the control strategy. The MPPM signals is used to improve the band-utilization efficiency, and the binary quantum coding make the communication able to correct the error. Numerical simulation results show that the CPN receiver with optimized strategy can also outperform SQL for both MPPM and binary quantum coding signals.
Differential rotation in K, G, F and A stars
Creators: name: Balona, Luis A.
name: Abedigamba, Oyirwoth P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rotational light modulation in Kepler photometry of K - A stars is used to estimate the absolute rotational shear. The rotation frequency spread in 2562 carefully selected stars with known rotation periods is measured using time-frequency diagrams. The variation of rotational shear as a function of effective temperature in restricted ranges of rotation period is determined. The shear increases to a maximum in F stars, but decreases somewhat in the A stars. Theoretical models reproduce the temperature variation quite well. The dependence of rotation shear on rotation rate in restricted temperature ranges is also determined. The dependence of the shear on the rotation rate is weak in K and G stars, increases rapidly for F stars and is strongest in A stars. For stars earlier than type K, a discrepancy exists between the predicted and observed variation of shear with rotation rate. There is a strong increase in the fraction of stars with zero frequency spread with increasing effective temperature. The time-frequency diagrams for A stars are no different from those in cool stars, further supporting the presence of spots in stars with radiative envelopes.
description: 11 pages 13 figures 2 tables
Baryon octet distribution amplitudes in Wandzura-Wilczek approximation
Creators: name: Anikin, I. V.
name: Manashov, A. N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study higher twist distribution amplitudes for the SU_F(3) baryon octet. We identify independent functions for all baryons in the isospin symmetry limit and calculate the Wandzura-Wilczek contributions to the twist-4 and 5 distributions amplitudes.
description: 7 pages
On multidimensional solutions in the Einstein-Gauss-Bonnet model with a cosmological term
Creators: name: Kobtsev, A. A.
name: Ivashchuk, V. D.
name: Ernazarov, K. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A D-dimensional gravitational model with Gauss-Bonnet and cosmological term is considered. When ansatz with diagonal cosmological metrics is adopted, we overview recent solutions for zero cosmological term and find new examples of solutions for non-zero cosmological term and D = 8 with exponential dependence of scale factors which describe an expansion of our 3-dimensional factor-space and contraction of 4-dimensional internal space.
description: 7 pages, Latex, no figures. To be published in: Proceedings of the XII International Conference on Gravitation, Cosmology and Astrophysics, (ICGAC-12, June 28-July 5, 2015, Moscow, PFUR), Eds. J.P. Hsu and V.N. Melnikov, World Scientific Publ., Singapore, 2016
Certain weighted averages of generalized Ramanujan sums
Creators: name: Namboothiri, K Vishnu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A25 11B68 33B15

description: We derive certain identities involving various known arithmetical functions and a generalized version of Ramanujan sum. L. Toth constructed certain weighted averages of Ramanujan sums with various arithmetic functions as weights. We choose a generalization of Ramanujan sum given by E. Cohen and derive the weighted averages corresponding to the versions of the weighted averages established by Toth.
From the ground up : an environmental history of Australian organic farming and gardening
Creators: name: Jones., Caroline Rebecca
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Perturbative Double Field Theory on General Backgrounds
Creators: name: Hohm, Olaf
name: Marques, Diego
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop the perturbation theory of double field theory around arbitrary solutions of its field equations. The exact gauge transformations are written in a manifestly background covariant way and contain at most quadratic terms in the field fluctuations. We expand the generalized curvature scalar to cubic order in fluctuations and thereby determine the cubic action in a manifestly background covariant form. As a first application we specialize this theory to group manifold backgrounds, such as $SU(2) \simeq S^3$ with $H$-flux. In the full string theory this corresponds to a WZW background CFT. Starting from closed string field theory, the cubic action around such backgrounds has been computed before by Blumenhagen, Hassler and Lüst. We establish precise agreement with the cubic action derived from double field theory. This result confirms that double field theory is applicable to arbitrary curved background solutions, disproving assertions in the literature to the contrary.
description: 36 pages, v2: minor clarifications
Machine learning reveals complex effects of climatic means and weather extremes on wheat yields during different plant developmental stages
Creators: name: Schierhorn, Florian
name: Hofmann, Max
name: Gagalyuk, Taras
name: Ostapchuk, Igor
name: Müller, Daniel
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 580

description: Rising weather volatility poses a growing challenge to crop yields in many global breadbaskets. However, empirical evidence regarding the effects of extreme weather conditions on crop yields remains incomplete. We examine the contribution of climate and weather to winter wheat yields in Ukraine, a leading crop exporter with some of the highest yield variabilities observed globally. We used machine learning to link daily climatic data with annual winter wheat yields from 1985 to 2018. We differentiated the impacts of long-term climatic conditions (e.g., temperature) and weather extremes (e.g., heat waves) on yields during the distinct developmental stages of winter wheat. Our results suggest that climatic and weather variables alone explained 54% of the wheat yield variability at the country level. Heat waves, tropical night waves, frost, and drought conditions, particularly during the reproductive and grain filling phase, constitute key factors that compromised wheat yields in Ukraine. Assessing the impacts of weather extremes on crop yields is urgent to inform strategies that help cushion farmers against growing production risks because these extremes will likely become more frequent and intense with climate change.
Nuclear Magnetic Resonance studies of DNP-ready trehalose obtained by solid state mechanochemical amorphization
Creators: name: Filibian, Marta
name: Elisei, Elena
name: Serra, Sonia Colombo
name: Rosso, Alberto
name: Tedoldi, Fabio
name: Cesàro, Attilio
name: Carretta, Pietro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: $^1$H nuclear spin-lattice relaxation and Dynamic Nuclear Polarization (DNP) have been studied in amorphous samples of trehalose sugar doped with TEMPO radicals by means of mechanical milling, in the 1.6 K $÷$ 4.2 K temperature range. The radical concentration was varied between 0.34 and 0.81 $\%$. The highest polarization of 15 \% at 1.6 K, observed in the sample with concentration $0.50 \%$, is of the same order of magnitude of that reported in standard frozen solutions with TEMPO. The temperature and concentration dependence of the spin-lattice relaxation rate $1/T_{\text{1}}$, dominated by the coupling with the electron spins, were found to follow power laws with an exponent close to $3$ in all samples. The observed proportionality between $1/T_{\text{1}}$ and the polarization rate $1/T_{\text{pol}}$, with a coefficient related to the electron polarization, is consistent with the presence of Thermal Mixing (TM) and a good contact between the nuclear and the electron spins. At high electron concentration additional relaxation channels causing a decrease in the nuclear polarization must be considered. These results provide further support for a more extensive use of amorphous DNP-ready samples, obtained by means of comilling, in dissolution DNP experiments and possibly for $\textit{in vivo}$ metabolic imaging.
Pitch-Synchronous Multiresolution Analysis of Music Signals
Creators: name: Alonso, César
Publisher: name: Zenodo
Year: 2007

description: In this thesis a novel multiresolution approach for note detection in a polyphonic mix is proposed. The idea is to use a set of wavelets whose lengths are adapted to the theoretical fundamental period of musical notes. Using the typical wavelet dyadic decomposition we can generate a set of wavelets that match the fundamental frequency (F0) of a given note in every octave. Therefore, using a set of 12 different wavelets, one per each semitone, we can represent the fundamental frequency of every note in every octave using one wavelet scale per each octave. The magnitude and phase continuity of wavelet coefficients across temporal frames is exploited to draw a special kind of spectrogram, namely Pitch-Synchronous Wavelet Spectrogram (PSWS). When the corresponding F0 and harmonics of a note are present in the signal, a special DC pattern appears in the PSWS, due to the aforementioned continuity. Any other harmonic signal or noise produces pseudo-periodic or random AC patterns. This way, by filtering the AC components, we can identify the DC patterns in the PSWS and state the presence of a given musical note at some moment in time, even if the signal is polyphonic. For the moment, the method only works satisfactorily when the harmonic peaks in the music signal are close to the theoretical position of the frequencies of the musical notes. Some techniques are suggested in order to improve the system and extend it to non-stable pitch musical instruments.
Mesenchymal stromal cells mitigate liver damage after extended resection in the pig by modulating thrombospondin-1/TGF-β
Creators: name: Nickel, Sandra
name: Erler, Silvio
name: [Und Viele Weitere]
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 590

description: Post-surgery liver failure is a serious complication for patients after extended partial hepatectomies (ePHx). Previously, we demonstrated in the pig model that transplantation of mesenchymal stromal cells (MSC) improved circulatory maintenance and supported multi-organ functions after 70% liver resection. Mechanisms behind the beneficial MSC effects remained unknown. Here we performed 70% liver resection in pigs with and without MSC treatment, and animals were monitored for 24 h post surgery. Gene expression profiles were determined in the lung and liver. Bioinformatics analysis predicted organ-independent MSC targets, importantly a role for thrombospondin-1 linked to transforming growth factor-β (TGF-β) and downstream signaling towards providing epithelial plasticity and epithelial-mesenchymal transition (EMT). This prediction was supported histologically and mechanistically, the latter with primary hepatocyte cell cultures. MSC attenuated the surgery-induced increase of tissue damage, of thrombospondin-1 and TGF-β, as well as of epithelial plasticity in both the liver and lung. This suggests that MSC ameliorated surgery-induced hepatocellular stress and EMT, thus supporting epithelial integrity and facilitating regeneration. MSC-derived soluble factor(s) did not directly interfere with intracellular TGF-β signaling, but inhibited thrombospondin-1 secretion from thrombocytes and non-parenchymal liver cells, therewith obviously reducing the availability of active TGF-β.
title: Alternative EUS-geführte Pankreasgangdrainage (EUPD) bei postoperativer Anastomosenstenose mit symptomatischer Retention des Pankreasganges
Creators: name: Will, Uwe
name: Reichel, Andreas
name: Füldner, Frank
name: Meyer, Frank
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die ERCP stellt den Goldstandard in der Therapie einer symptomatischen Pankreasgangretention dar. Bei Patienten mit Z.n. Operation (Op) am Pankreas & veränderter Oberbauchanatomie (Op n. Kausch-Whipple, Roux-en-Y etc.) ist die Anastomose mit einer konventionellen ERP häufig[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
A comprehensive characterization of the set of polynomial curves with rational rotation-minimizing frames
Creators: name: Farouki, Rida T.
name: Gentili, Graziano
name: Giannelli, Carlotta
name: Sestini, Alessandra
name: Stoppato, Caterina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 65D17, 30G35

description: A rotation-minimizing frame $({\bf f}_1,{\bf f}_2,{\bf f}_3)$ on a space curve ${\bf r}(ξ)$ defines an orthonormal basis for $\mathbb{R}^3$ in which ${\bf f}_1={\bf r}'/|{\bf r}'|$ is the curve tangent, and the normal-plane vectors ${\bf f}_2$, ${\bf f}_3$ exhibit no instantaneous rotation about ${\bf f}_1$. Polynomial curves that admit rational rotation-minimizing frames (or RRMF curves) form a subset of the Pythagorean-hodograph (PH) curves, specified by integrating the form ${\bf r}'(ξ)={\cal A}(ξ)\,{\bf i}\,{\cal A}^*(ξ)$ for some quaternion polynomial ${\cal A}(ξ)$. By introducing the notion of rotation indicatrix and of core of the quaternion polynomial ${\cal A}(ξ)$, a comprehensive characterization of the complete space of RRMF curves is developed, that subsumes all previously known special cases. This novel characterization helps clarify the structure of the complete space of RRMF curves, distinguishes the spatial RRMF curves from trivial (planar) cases, and paves the way toward new construction algorithms.
description: 30 pages, 1 figure
Rapid Prototyping for Audio Applications
Creators: name: Garcia, David
Publisher: name: Zenodo
Year: 2007

description: The goal of the proposed master thesis is to define an architecture that enables visual prototyping of real-time audio applications and plug-ins. Visual prototyping means that a developer can build a working application, including user interface and processing core, just by assembling elements together and changing their properties in a visual way. Specifically, this research will address the problem of having to bind interactive user interface to a real-time processing core, when both are defined dynamically, the set of components is extensible, it allows bidirectional communication of arbitrary types of data between the interface and the processing core, and, it still fulfils the real-time requirements of audio applications.
Neue Publikationen zum bayerischen Landesbischof Hans Meiser und zur Geschichte des bayerischen Protestantismus in der Zeit der nationalsozialistischen Herrschaft
Creators: name: Kuller, Christiane
Publisher: name: Mitteilungen zur Kirchlichen Zeitgeschichte
Year: 2023

description: Mitteilungen zur Kirchlichen Zeitgeschichte, Bd. 16 (2022)
title: Population-wide MRI-screening for early detection of glioblastoma? Considerations from a naturally occurring “Screening-Like” setting
Creators: name: Roelz, Roland
name: Csok, Istvan
name: Weyerbrock, Astrid
name: Reinacher, Peter
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Glioblastoma
subject: Screening
subject: MRI
subject: 610 Medical sciences; Medicine

description: Objective: Despite all medical efforts, the prognosis of patients with a new diagnosis of glioblastoma multiforme (GBM) remains very poor. Complete surgical removal of the lesion as visualized by MRI correlates with improved overall survival. Population-wide MRI-Screening could potentially lead to early[for full text, please go to the a.m. URL]
description: 67. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 1. Joint Meeting mit der Koreanischen Gesellschaft für Neurochirurgie (KNS)
Optimal tuning of a confined Brownian information engine
Creators: name: Park, J. -M.
name: Lee, J. S.
name: Noh, J. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A Brownian information engine is a device extracting a mechanical work from a single heat bath by exploiting the information on the state of a Brownian particle immersed in the bath. As for engines, it is important to find the optimal operating condition that yields the maximum extracted work or power. The optimal condition for a Brownian information engine with a finite cycle time $τ$ has been rarely studied because of the difficulty in finding the nonequilibrium steady state. In this study, we introduce a model for the Brownian information engine and develop an analytic formalism for its steady state distribution for any $τ$. We find that the extracted work per engine cycle is maximum when $τ$ approaches infinity, while the power is maximum when $τ$ approaches zero.
description: 8 pages, 6 figures
title: Probabilistic fibertracking in deep brain stimulation: Is it worth the effort?
Creators: name: Schlaier, Juergen
name: Anthofer, Judith
name: Steib, Kathrin
name: Lange, Max
name: Brawanski, Alexander
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: deep brain stimulation
subject: fibertracking
subject: Diffusion weighted images
subject: 610 Medical sciences; Medicine

description: Objective: Several Groups suggested to integrate diffusion-weighted-imaging-based fibertracking (DTI) into the target planning for deep brain stimulation. Probabilistic fibertracking is thought to be superior to deterministic DTI. A higher number of read-out directions is believed to provide better [for full text, please go to the a.m. URL]
description: 67. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 1. Joint Meeting mit der Koreanischen Gesellschaft für Neurochirurgie (KNS)
title: Analysis of the brain pulse for bedside detection of posthemorrhagic vasospasm
Creators: name: Neulen, Axel
name: Moringlane, Rene Bernard
name: Stein, Maximilian
name: Kramer, Andreas
name: Poepping, Tim
name: Giese, Alf
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: SAH
subject: vasospasm
subject: intensive care
subject: 610 Medical sciences; Medicine

description: Objective: The Nautilus BrainPulseTM System (JanMedical, Mountain View, CA, USA) uses a novel technique based on passive sonar technology for bedside measurement of the brain pulse, i. e. brain oscillations caused by blood flow, which show characteristic changes after concussion injury (Clin J Sport[for full text, please go to the a.m. URL]
description: 67. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 1. Joint Meeting mit der Koreanischen Gesellschaft für Neurochirurgie (KNS)
Studies on the effects of culture conditions on the occurrence and nature of mitochondrial structures in the yeast saccharomyces cerevisiae
Creators: name: Jollow., David J.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Comment on "Galilean invariance at quantum Hall edge"
Creators: name: Höller, J.
name: Read, N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a recent paper by S. Moroz, C. Hoyos, and L. Radzihovsky [Phys. Rev. B 91, 195409 (2015)], it is claimed that the conductivity at low frequency $ω$ and small wavevector $q$ along the edge of a quantum Hall (QH) system (that possesses Galilean invariance along the edge) contains a universal contribution of order $q^2$ that is determined by the orbital spin per particle in the bulk of the system, or alternatively by the shift of the ground state. (These quantities are known to be related to the Hall viscosity of the bulk.) In this Comment we calculate the real part of the conductivity, integrated over $ω$, in this regime for the edge of a system of non-interacting electrons filling either the lowest, or the lowest $ν$ ($ν=1$, $2$, . . .), Landau level(s), and show that the $q^2$ term is non-universal and depends on details of the confining potential at the edge. In the special case of a linear potential, a form similar to the prediction is obtained, it is possible that this corrected form of the prediction may also hold for fractional QH states in systems with special forms of interactions between electrons.
description: 5 pages. v2: published version
title: Versatility of the translaminar approach for microsurgical removal of migrated lumbar disc herniation
Creators: name: Kim, Seong Woong
name: Gramsch, Carolin
name: Stein, Marco
name: Uhl, Eberhard
name: Schöller, Karsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: translaminar approach
subject: lumbar disc herniations
subject: anatomical classification
subject: 610 Medical sciences; Medicine

description: Objective: The translaminar approach (TA) was originally introduced for removal of cranially migrated foraminal lumbar disc herniation (LDH). In comparison to the conventional interlaminar approach, extensive removal of the lamina and of parts of the facet joint can be avoided, which is a major advantage.[for full text, please go to the a.m. URL]
description: 67. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 1. Joint Meeting mit der Koreanischen Gesellschaft für Neurochirurgie (KNS)
Semi-Automatic Annotation of Music Collections
Creators: name: Sordo, Mohamed
Publisher: name: Zenodo
Year: 2007

description: The amount of multimedia content in the World Wide Web is increasing very much, and music is one of the most outstanding. Every time, there are more and more songs, artists, and even new genres. Hence, it is really hard to manage this huge quantity, in terms of searching, filtering, navigating through the content, etc. One of the solutions for this problem is keeping annotations of the music files, in order to facilitate the retrieval process. However, it is known that annotating songs manually has a huge cost and annotating them automatically is quite inaccurate. The approach of this master thesis is to propose a semi-automatic strategy that allows to annotate huge music collections, based on audio similarity and a community of users that annotate music titles. This strategy allows to increase the efficiency regarding the manual annotation, and the accuracy regarding the automatic annotation. The Thesis presents two experiments followed for the evaluation of the annotation process the first experiment consists on testing how the content–based similarity can propagate labels. Using a collection of 5500 songs, we show that with a collection annotated at 40% with styles, we can reach a 78% (40%+38%) annotated collection, with a recall greater than or equal to 0.4, only using content–based similarity. In the case of moods, with a 30% annotated collection we can automatically propagate up to 65% (30%+35%). Regarding the second experiment, we use a collection of 258000 songs. With a 48% manually annotated collection we propagate the annotations up to 76% (48%+28%) and then evaluate a small set of the propagated annotations by means of user relevance feedback.
title: Secretory meningiomas: Increased prevalence of seizures due to edema formation in a rare histological subtype
Creators: name: Mohme, Malte
name: Emami, Pedram
name: Regelsberger, Jan
name: Matschke, Jakob
name: Westphal, Manfred
name: Eicker, Sven Oliver
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Secretory Meningioma
subject: Edema
subject: Seizures
subject: 610 Medical sciences; Medicine

description: Objective: Secretory meningioma (SM) is a rare histological subtype known to cause disproportional peritumoral brain edema. Although meningiomas are defined by slow-growth and mostly present with benign clinical symptoms, SM can cause life-threatening symptoms. The aim of this study is to characterize[for full text, please go to the a.m. URL]
description: 67. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 1. Joint Meeting mit der Koreanischen Gesellschaft für Neurochirurgie (KNS)
Enhanced Thermoelectric Power in Graphene: Violation of the Mott Relation By Inelastic Scattering
Creators: name: Ghahari, Fereshte
name: Xie, Hong-Yi
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Foster, Matthew S.
name: Kim, Philip
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the enhancement of the thermoelectric power (TEP) in graphene with extremely low disorder. At high temperature we observe that the TEP is substantially larger than the prediction of the Mott relation, approaching to the hydrodynamic limit due to strong inelastic scattering among the charge carriers. However, closer to room temperature the inelastic carrier-optical-phonon scattering becomes more significant and limits the TEP below the hydrodynamic prediction. We support our observation by employing a Boltzmann theory incorporating disorder, electron interactions, and optical phonons.
description: 5 pages, 4 figures
title: Einfluss der Thermischen Stimulationstherapie der Retina (TS-R) auf die Sekretion von Zellmediatoren
Creators: name: Richert, Elisabeth
name: Koinzer, S.
name: Klettner, A.
name: Brinkmann, R.
name: Hillenkamp, J.
name: Roider, J.
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Es wurde der Einfluss der TS-R auf AMD-relevante Zellmediatoren wie Matrixmetalloproteasen (MMPs), der Pigment Epithelium Derived Factor (PEDF) und Vascular Endothelial Growth Factor (VEGF), nach Behandlung mit unterschiedlichen Spotgrößen, untersucht. Methodik: Porcine Explantate[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 66. Tagung der Vereinigung Norddeutscher Augenärzte
Rural to urban population density scaling of crime and property transactions in English and Welsh Parliamentary Constituencies
Creators: name: Hanley, Quentin S.
name: Lewis, Dan
name: Ribeiro, Haroldo V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Urban population scaling of resource use, creativity metrics, and human behaviors has been widely studied. These studies have not looked in detail at the full range of human environments which represent a continuum from the most rural to heavily urban. We examined monthly police crime reports and property transaction values across all 573 Parliamentary Constituencies in England and Wales, finding that scaling models based on population density provided a far superior framework to traditional population scaling. We found four types of scaling: i) non-urban scaling in which a single power law explained the relationship between the metrics and population density from the most rural to heavily urban environments, ii) accelerated scaling in which high population density was associated with an increase in the power-law exponent, iii) inhibited scaling where the urban environment resulted in a reduction in the power-law exponent but remained positive, and iv) collapsed scaling where transition to the high density environment resulted in a negative scaling exponent. Urban scaling transitions, when observed, took place universally between 10 and 70 people per hectare. This study significantly refines our understanding of urban scaling, making clear that some of what has been previously ascribed to urban environments may simply be the high density portion of non-urban scaling. It also makes clear that some metrics undergo specific transitions in urban environments and these transitions can include negative scaling exponents indicative of collapse. This study gives promise of far more sophisticated scale adjusted metrics and indicates that studies of urban scaling represent a high density subsection of overall scaling relationships which continue into rural environments.
description: Accepted for publication in PLoS ONE
Numerical Evaluation of the Bose-Ghost Propagator in Minimal Landau Gauge on the Lattice
Creators: name: Cucchieri, Attilio
name: Mendes, Tereza
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present numerical details of the evaluation of the so-called Bose-ghost propagator in lattice minimal Landau gauge, for the SU(2) case in four Euclidean dimensions. This quantity has been proposed as a carrier of the confining force in the Gribov-Zwanziger approach and, as such, its infrared behavior could be relevant for the understanding of color confinement in Yang-Mills theories. Also, its nonzero value can be interpreted as direct evidence of BRST-symmetry breaking, which is induced when restricting the functional measure to the first Gribov region Omega. Our simulations are done for lattice volumes up to 120^4 and for physical lattice extents up to 13.5 fm. We investigate the infinite-volume and continuum limits.
description: 14 pages, 6 tables, 13 figures (16 plots)
The entanglement spectrum and Rényi entropies of non-relativistic conformal fermions
Creators: name: Porter, William J.
name: Drut, Joaquín E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We characterize non-perturbatively the Rényi entropies of degree n=2,3,4, and 5 of three-dimensional, strongly coupled many-fermion systems in the scale-invariant regime of short interaction range and large scattering length, i.e. in the unitary limit. We carry out our calculations using lattice methods devised recently by us. Our results show the effect of strong pairing correlations on the entanglement entropy, which modify the sub-leading behavior for large subsystem sizes (as characterized by the dimensionless parameter x=kF L_A, where kF is the Fermi momentum and L_A the linear subsystem size), but leave the leading order unchanged relative to the non-interacting case. Moreover, we find that the onset of the sub-leading asymptotic regime is at surprisingly small x=2-4. We provide further insight into the entanglement properties of this system by analyzing the spectrum of the entanglement Hamiltonian of the two-body problem from weak to strong coupling. The low-lying entanglement spectrum displays clear features as the strength of the coupling is varied, such as eigenvalue crossing, a sharp change in the Schmidt gap, and scale invariance at unitarity. Beyond the low-lying component, the spectrum appears as a quasi-continuum distribution, for which we present a statistical characterization; we find, in particular, that the mean shifts to infinity as the coupling is turned off, which indicates that that part of the spectrum represents non-perturbative contributions to the entanglement Hamiltonian. In contrast, the low-lying entanglement spectrum evolves to finite values in the noninteracting limit. The scale invariance of the unitary regime guarantees that our results are universal features intrinsic to 3D quantum mechanics and represent a well-defined prediction for ultracold atom experiments, which were recently shown to have direct access to the entanglement entropy.
description: 18 pages, 13 figures
Integration of radiation oncology teaching in medical studies by German medical faculties due to the new licensing regulations : an overview and recommendations of the consortium academic radiation oncology of the German Society for Radiation Oncology (DEGRO)
Creators: name: Dapper, H.
name: Belka, C.
name: Bock, F.
name: Budach, V.
name: Budach, W.
name: Christiansen, H.
name: Debus, J.
name: Distel, L.
name: Dunst, J.
name: Eckert, F.
name: Eich, H.
name: Eicheler, W.
name: Engenhart-Cabillic, R.
name: Fietkau, R.
name: Fleischmann, D. F.
name: Frerker, B.
name: Giordano, F. A.
name: Grosu, A. L.
name: Herfarth, K.
name: Hildebrandt, G.
name: Kaul, D.
name: Kölbl, O.
name: Krause, M.
name: Krug, D.
name: Martin, D.
name: Matuschek, C.
name: Medenwald, Daniel
name: Nicolay, N. H.
name: Niewald, M.
name: Oertel, M.
name: Petersen, C.
name: Pohl, F.
name: Raabe, A.
name: Rödel, C.
name: Rübe, C.
name: Schmalz, C.
name: Schmeel, L. C.
name: Steinmann, D.
name: Stüben, G.
name: Thamm, R.
name: Vordermark, Dirk
name: Vorwerk, H.
name: Wiegel, T.
name: Zips, D.
name: Combs, S. E.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: The new Medical Licensing Regulations 2025 (Ärztliche Approbationsordnung, ÄApprO) will soon be passed by the Federal Council (Bundesrat) and will be implemented step by step by the individual faculties in the coming months. The further development of medical studies essentially involves an orientation from fact-based to competence-based learning and focuses on practical, longitudinal and interdisciplinary training. Radiation oncology and radiation therapy are important components of therapeutic oncology and are of great importance for public health, both clinically and epidemiologically, and therefore should be given appropriate attention in medical education. This report is based on a recent survey on the current state of radiation therapy teaching at university hospitals in Germany as well as the contents of the National Competence Based Learning Objectives Catalogue for Medicine 2.0 (Nationaler Kompetenzbasierter Lernzielkatalog Medizin 2.0, NKLM) and the closely related Subject Catalogue (Gegenstandskatalog, GK) of the Institute for Medical and Pharmaceutical Examination Questions (Institut für Medizinische und Pharmazeutische Prüfungsfragen, IMPP). The current recommendations of the German Society for Radiation Oncology (Deutsche Gesellschaft für Radioonkologie, DEGRO) regarding topics, scope and rationale for the establishment of radiation oncology teaching at the respective faculties are also included.
Ultracold molecular Rydberg physics in a high density environment
Creators: name: Eiles, Matthew T
name: Perez-Rios, Jesus
name: Robicheaux, F
name: Greene, Chris H
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Sufficiently high densities in Bose-Einstein condensates provide favorable conditions for the production of ultralong-range polyatomic molecules consisting of one Rydberg atom and a number of neutral ground state atoms. The chemical binding properties and electronic wave functions of these exotic molecules are investigated analytically via hybridized diatomic states. The effects of the molecular geometry on the system's properties are studied through comparisons of the adiabatic potential curves and electronic structures for both symmetric and randomly configured molecular geometries. General properties of these molecules with increasing numbers of constituent atoms and in different geometries are presented. These polyatomic states have spectral signatures that lead to non-Lorentzian line-profiles.
description: 13 pages, 8 figures