cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ferromagnetically correlated clusters in semi-metallic Ru2NbAl Heusler alloy
Creators: name: Mondal, Sanchayita
name: Mazumdar, Chandan
name: Ranganathan, R.
name: Alleno, Eric
name: Sreeparvathy, P. C.
name: Kanchana, V.
name: Vaitheeswaran, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work, we report the structural, magnetic and electrical and thermal transport properties of the Heusler-type alloy Ru2NbAl. From the detailed analysis of magnetization data, we infer the presence of superparamagnetically interacting clusters with a Pauli paramagnetic background, while short-range ferromagnetic interaction is developed among the clusters below 5 K. The presence of this ferromagnetic interaction is confirmed through heat capacity measurements. The relatively small value of electronic contribution to specific heat, gamma (~2.7 mJ/mol-K2), as well as the linear nature of temperature dependence of Seebeck coefficient indicate a semi-metallic ground state with a pseudo-gap that is also supported by our electronic structure calculations. The activated nature of resistivity is reflected in the observed negative temperature coefficient and has its origin in the charge carrier localization due to antisite defects, inferred from magnetic measurements as well as structural analysis. Although the absolute value of thermoelectric figure of merit is rather low (ZT = 5.2*10-3) in Ru2NbAl, it is the largest among all the reported non-doped full Heusler alloys.
description: 25 pages, 14 figures
title: Wieviel Mehraufwand bedeuten computergestützte Operationsverfahren zur Knie TEP Implantation? Eine multizentrische Analyse von 5 aktuellen Technologien
Creators: name: Calliess, Tilman
name: Tanner, Lars
name: Ettinger, Max
name: Christen, Bernhard
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: Kniepxrothetik
subject: Kosten
subject: PSI
subject: Robotic
subject: Navigation
subject: 610 Medical sciences; Medicine

description: Fragestellung: In den vergangenen Jahren sind zahlreiche neue Technologien zur Verbesserung der Präzision bei Knie-TEPs vorgestellt worden. Trotz des Nachweises einer erhöhten Genauigkeit stehen diese Therapien weiterhin in der Kritik, da bis heute der klinische Nutzen nicht eindeutig bewiesen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2019)
Steps towards NNLO QCD calculations: collinear factorization at O(α_S^2)
Creators: name: Grazzini, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I consider the singular behaviour of tree-level QCD amplitudes when the momenta of three partons become simultaneously parallel and I discuss the universal factorization formula that controls the singularities of the multiparton matrix elements in this collinear limit.
description: 3 pages, 1 eps figure, talk given at the DIS99 Workshop, Zeuthen, Germany, April 19-23, 1999
Effects of CP-Violation in Neutralino Scattering and Annihilation
Creators: name: Gondolo, Paolo
name: Freese, Katherine
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We summarize our paper hep-ph/9908390, where we find that in some regions of supersymmetric parameter space, CP violating effects that mix the CP-even and CP-odd Higgs bosons can enhance the neutralino annihilation rate by factors of 10^6, and reduce the neutralino scattering rate off nucleons by factors of 10^{-7}.
description: 2 pages, 5 figures, TAUP99, Paris, France
Urethral reconstruction with autologous urine-derived stem cells seeded in three-dimensional porous small intestinal submucosa in a rabbit model
Creators: name: Ivanova, Anna
Publisher: name: figshare
Year: 2018
Subjects: Medicine

description: BACKGROUND:
 Urethral reconstruction is one of the great surgical challenges for urologists. A cell-based tissue-engineered urethra may be an alternative for patients who have complicated long strictures and need urethral reconstruction. Here, we demonstrated the feasibility of using autologous urine-derived stem cells (USCs) seeded on small intestinal submucosa (SIS) to repair a urethral defect in a rabbit model.

 METHODS:
 Autologous USCs were obtained and characterized, and their capacity to differentiate into urothelial cells (UCs) and smooth muscle cells (SMCs) was tested. Then, USCs were labeled with PKH67, seeded on SIS, and transplanted to repair a urethral defect. The urethral defect model was surgically established in New Zealand white male rabbits. A ventral urethral gap was created, and the urethral mucosa was completely removed, with a mean rabbit penile urethra length of 2 cm. The urethral mucosal defect was repaired with a SIS scaffold (control group: SIS with no USCs; experimental group: autologous USC-seeded SIS; n = 12 for each group). A series of tests, including a retrograde urethrogram, histological analysis, and immunofluorescence, was undertaken 2, 3, 4, and 12 weeks after the operation to evaluate the effect of the autologous USCs on urethral reconstruction.

 RESULTS:
 Autologous USCs could be easily collected and induced to differentiate into UCs and SMCs. In addition, the urethral caliber, speed of urothelial regeneration, content of smooth muscle, and vessel density were significantly improved in the group with autologous USC-seeded SIS. Moreover, inflammatory cell infiltration and fibrosis were found in the control group with only SIS, but not in the experimental autologous USC-seeded SIS group. Furthermore, immunofluorescence staining demonstrated that the transplanted USCs differentiated into UCs and SMCs in vivo.

 CONCLUSIONS:
 Autologous USCs can be used as an alternative cell source for cell-based tissue engineering for urethral reconstruction.
Excitation Functions of Stopping Power and Flow in Relativistic Heavy-Ion Collisions
Creators: name: Li, Bao-An
name: Ko, C. M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using a relativistic transport (ART) model, we study the stopping power, the formation of superdense hadronic matter as well as the strength of transverse and radial flow in central Au+Au collisions at beam momentum from 2 to 12 GeV/c per nucleon. We find that complete stopping is achieved in the whole beam momentum range. In particular, the proton rapidity distribution scaled by the beam rapidity is independent of the beam momentum, and this is in agreement with the experimental findings. Also, a large volume of superdense hadronic matter with a local energy density exceeding that expected for the transition of a hadronic matter to the quark-gluon plasma is formed in collisions at beam momenta greater than 8 GeV/c per nucleon. Furthermore, it is found that the transverse flow in these collisions is sensitive to the nuclear equation of state and decreases with increasing beam momentum. On the other hand, the radial flow is insensitive to the equation of state, and its strength increases with beam momentum.
description: Talk given at NN97, Gatlinburg, Tennessee June 2-6,1997. To appear in the proc. in Nucl. Phys. A
An update on vector boson pair production at hadron colliders
Creators: name: Campbell, J. M.
name: Ellis, R. K.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present numerical results (including full one-loop QCD corrections) for the processes p p-bar and pp -> W+ W-, W+/- Z/gamma* and Z/gamma* Z/gamma* followed by the decay of the massive vector bosons into leptons. In addition to their intrinsic importance as tests of the standard model, these processes are also backgrounds to conjectured non-standard model processes. Because of the small cross sections at the Tevatron, full experimental control of these backgrounds will be hard to achieve. This accentuates the need for up-to-date theoretical information. A comparison is made with earlier work and cross section results are presented for p p-bar collisions at sqrt{s}=2 TeV and pp collisions at sqrt{s}=14 TeV. Practical examples of the use of our calculations are presented.
description: 18 pages, 5 embedded figures, included extra reference [7]
Adaptations following an intermittent hypoxia-hyperoxia training in coronary artery disease patients
Creators: name: Ivanova, Anna
Publisher: name: figshare
Year: 2018
Subjects: Medicine

description: BACKGROUND:
 Repeated exposure to intermittent normobaric hypoxia improves exercise tolerance in cardiac patients. Little is known on the effects of intermittent normobaric hypoxia-hyperoxia exposure in coronary artery disease (CAD) patients (New York Heart Association II-III). HYPOTHESIS:
 IHHT improves exercise tolerance, cardiometabolic profile, and quality of life in CAD patients. METHODS:
 The study design was a nonrandomized, controlled, before-and-after trial. Forty-six CAD patients volunteered to take part in the study: a group of 27 patients undertook the intermittent hypoxia (O2 at 10%)-hyperoxia (O2 at 30%) training (IHHT), whereas a control group (CTRL) of 19 patients, who already completed an 8-week standard cardiac rehabilitation program, was allocated to sham-IHHT treatment (breathing room air, O2 at 21%). Exercise performance, blood and metabolic profiles, and quality of life (Seattle Angina Questionnaire [SAQ]) were measured before and after in the IHHT group (IHHG) and sham-IHHT in the CTRL group. RESULTS:
 The IHHG showed improved exercise capacity, reduced systolic and diastolic blood pressures, enhanced left ventricle ejection fraction, and reduced glycemia, but only at 1-month follow-up. Angina as a reason to stop exercising was significantly reduced after treatment and at 1-month follow-up. The IHHT SAQ profile was improved in the IHHG and not significantly different to the CTRL group after standard rehabilitation. The IHHG was also compared to the CTRL group at 1-month follow-up, and no differences were found. CONCLUSIONS:
 In CAD patients, an IHHT program is associated with improved exercise tolerance, healthier risks factors profile, and a better quality of life. Our study also suggests that IHHT is as effective as an 8-week standard rehabilitation program.
Fabrication and Application of Photocrosslinked, Nanometer-Scale, Physically Adsorbed Films for Tissue Culture Regeneration
Creators: name: Ivanova, Anna
Publisher: name: figshare
Year: 2018
Subjects: Medicine

description: This study describes the development and cell culture application of nanometer thick photocrosslinkable thermoresponsive polymer films prepared by physical adsorption. Two thermoresponsive polymers, poly(N-isopropylacrylamide (NIPAm)-co-acrylamidebenzophenone (AcBzPh)) and poly(NIPAm-co-AcBzPh-co-N-tertbutylacrylamide) are investigated. Films are prepared both above and below the polymers' lower critical solution temperatures (LCSTs) and cross-linked, to determine the effect, adsorption preparation temperature has on the resultant film. The films prepared at temperatures below the LCST are smoother, thinner, and more hydrophilic than those prepared above. Human pulmonary microvascular endothelial cell (HPMEC) adhesion and proliferation are superior on the films produced below the polymers LCST compared to those produced above. Cells sheets are detached by simply lowering the ambient temperature to below the LCST. Transmission electron, scanning electron, and light microscopies indicate that the detached HPMEC sheets maintain their integrity.
title: Lymphocyte counts and serum metal ion levels in patients following total hip arthroplasty
Creators: name: Reiner, Tobias
name: Haubenreisser, Hester
name: Moradi, Babak
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: metal ion level
subject: lymphocyte
subject: total hip arthroplasty
subject: 610 Medical sciences; Medicine

description: Objectives: Every metal implant in a biological environment corrodes which leads to the generation of metal ions that can potentially modulate the immune system and cause local as well as systemic adverse reactions. The aim of this study was to investigate the potential influence of elevated blood metal[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2019)
Das Lexikon der verlorenen Wörter: Von bondmaid bis knackered
Creators: name: Held, Laura
Publisher: name: AKMB-news: Informationen zu Kunst, Museum und Bibliothek
Year: 2024

description: Pip Williams: Die Sammlerin der verlorenen Wörter. Roman / aus dem Englischen von Christiane Burkhardt. – München : Diana, 2022. – 527 Seiten : Illustrationen. – EST: The dictionary of lost words . – ISBN 978-3-453-29263-5
description: AKMB-news: Informationen zu Kunst, Museum und Bibliothek, Bd. 28 Nr. 2 (2022): AKMB-news
A New Iterative Perturbation Scheme for Lattice Models with Arbitrary Filling
Creators: name: Kajueter, Henrik
name: Kotliar, Gabriel
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We derive a new perturbation scheme for treating the large d limit of lattice models at arbitrary filling. The results are compared with exact diagonalization data for the Hubbard model and found to be in good agreement.
description: Revtex, 5 pages, 3 postcript files for figures included
title: Einfluss des humeralen Inklinationswinkels und der Glenosphärenlateralisation auf die anteriore Stabilität der inversen Prothese
Creators: name: Smith, Tomas
name: Pastor, Marc Frederic
name: Hagenah, Jakob
name: Hurschler, Christof
name: Ferle, Manuel
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: Inverse Prothese
subject: Instabilität
subject: Inklinationswinkel
subject: Lateralisation
subject: 610 Medical sciences; Medicine

description: Fragestellung: Lateralisation der Glenosphäre und Reduktion des humeralen Inklinationswinkels werden zur Vermeidung des Scapulaimpingements der inversen Prothese eingesetzt. Diese biomechanische Studie untersucht den Einfluss dieser Designparameter auf die anteriore Stabilität in verschiedenen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2019)
Dynamic Adaptive Computation: Tuning network states to task requirements
Creators: name: Wilting, Jens
name: Dehning, Jonas
name: Neto, Joao Pinheiro
name: Rudelt, Lucas
name: Wibral, Michael
name: Zierenberg, Johannes
name: Priesemann, Viola
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Neural circuits are able to perform computations under very diverse conditions and requirements. The required computations impose clear constraints on their fine-tuning: a rapid and maximally informative response to stimuli in general requires decorrelated baseline neural activity. Such network dynamics is known as asynchronous-irregular. In contrast, spatio-temporal integration of information requires maintenance and transfer of stimulus information over extended time periods. This can be realized at criticality, a phase transition where correlations, sensitivity and integration time diverge. Being able to flexibly switch, or even combine the above properties in a task-dependent manner would present a clear functional advantage. We propose that cortex operates in a "reverberating regime" because it is particularly favorable for ready adaptation of computational properties to context and task. This reverberating regime enables cortical networks to interpolate between the asynchronous-irregular and the critical state by small changes in effective synaptic strength or excitation-inhibition ratio. These changes directly adapt computational properties, including sensitivity, amplification, integration time and correlation length within the local network. We review recent converging evidence that cortex in vivo operates in the reverberating regime, and that various cortical areas have adapted their integration times to processing requirements. In addition, we propose that neuromodulation enables a fine-tuning of the network, so that local circuits can either decorrelate or integrate, and quench or maintain their input depending on task. We argue that this task-dependent tuning, which we call "dynamic adaptive computation", presents a central organization principle of cortical networks and discuss first experimental evidence.
description: 6 pages + references, 2 figures
Families as Neighbors in Extra Dimension
Creators: name: Dvali, G.
name: Shifman, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a new mechanism for explanation of the fermion hierarchy without introducing any family symmetries. Instead, we postulate that different generations live on different branes embedded in a relatively large extra dimension, where the gauge fields can propagate. The electroweak symmetry is broken on a separate brane, which is a source of exponentially decaying Higgs profile in the bulk. The resulting fermion masses and mixings are determined by an exponentially suppressed overlap of the fermion and Higgs wave functions and are automatically hierarchical even if all copies are identical and there is no hierarchy of distances. In this framework the well known pattern of the "nearest neighbor mixing" is predicted due to the fact that the families are literally neighbors in the extra space. This picture may also provide a new way of a hierarchically weak supersymmetry breaking, provided that the combination of three family branes is a non-BPS configuration, although each of them, individually taken, is. This results in exponentially weak supersymmetry breaking. We also discuss the issue of embedding identical branes in the compact spaces and localization of the fermionic zero modes.
description: Latex, 11 pages, no figures
La Phygitalisation des Agences Commerciales, une nouvelle implication managériale orientée expérience client : une étude exploratoire
Creators: name: LIHI, Khadija
name: SIMOUR, Lhoussain
Publisher: name: Zenodo
Year: 2024
Subjects: Phygitalisation, expérience client ; opérateurs télécoms ; digital, innovation managériale.

description: Cette étude explore l'intérêt des décideurs télécoms pour la phygitalisation et l'expérience client connectée dans les agences au Maroc. Elle se concentre sur les initiatives managériales et les efforts technologiques déployés. Dans une perspective exploratoire, l'article offre un aperçu global de la considération du concept par les organisations. Il approfondit également les connaissances sur les stratégies numériques en point de vente physique connecté, adoptées par les décideurs du secteur des télécommunications. Les objectifs spécifiques incluent l'établissement de l'état des lieux de l'expérience client connectée en agence, l'examen des implications managériales liées à la phygitalisation, et l'exploration des stratégies numériques orientées expérience client. L'approche méthodologique comprend une étude qualitative exploratoire impliquant des professionnels du secteur pour mieux cerner cette réalité et acquérir une vision globale du phénomène.
Representative optical turbulence profiles for ESO Paranal by hierarchical clustering
Creators: name: Farley, O. J. D.
name: Osborn, J.
name: Morris, T.
name: Sarazin, M.
name: Butterley, T.
name: Townson, M. J.
name: Jia, P.
name: Wilson, R. W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Knowledge of the optical turbulence profile is important in adaptive optics (AO) systems, particularly tomographic AO systems such as those to be employed by the next generation of 40 m class extremely large telescopes (ELTs). Site characterisation and monitoring campaigns have produced large quantities of turbulence profiling data for sites around the world. However AO system design and performance characterisation is dependent on Monte-Carlo simulations that cannot make use of these large datasets due to long computation times. Here we address the question of how to reduce these large datasets into small sets of profiles that can feasibly be used in such Monte-Carlo simulations, whilst minimising the loss of information inherent in this effective compression of the data. We propose hierarchical clustering to partition the dataset according to the structure of the turbulence profiles and extract a single profile from each cluster. This method is applied to the Stereo-SCIDAR dataset from ESO Paranal containing over 10000 measurements of the turbulence profile from 83 nights. We present two methods of extracting turbulence profiles from the clusters, resulting in two sets of 18 profiles providing subtly different descriptions of the variability across the entire dataset. For generality we choose integrated parameters of the turbulence to measure the representativeness of our profiles and compare to others. Using these criterion we also show that such variability is difficult to capture with small sets of profiles associated with integrated turbulence parameters such as seeing.
description: Accepted MNRAS September 2018
Germline nonsense-mutations of the SMARCB1 gene in Russian patients with rhabdoid renal tumors
Creators: name: Ivanova, Anna
Publisher: name: figshare
Year: 2018
Subjects: Medicine

description: The malignant rhabdoid tumor (RT) is one of the most aggressive childhood neoplasm. RTs are characterized by the presence of inactivating mutations in the SMARCB1 (hSNF5/INI1/BAF47) gene – a tumor suppressor localized in 22q11.2. Up to 30 % of RTs caused by germline mutations of this gene, to date those cases are considered as a manifestation of the rhabdoid tumor predisposition syndrome type 1 (RTPS1). We have analyzed the SMARCB1 mutations by polymerase chain reaction and subsequent Sanger sequencing in 18 patients with RT in different localizations for improving of genetic laboratory diagnostics of the RTPS1, as well as searching of genotype-phenotype correlations in this disease. Three patients had de novo nonsense-mutations c.157C→T (p.R53*), c.669_670del (p.C223*) and c.843G→A (p.W281*), confirming RTPS1, which were associated with RT in the kidney, early age at diagnosis (median 2.6 months) and poor prognosis. Identification of germline SMARCB1 mutations in the patients with RTs is essential to assess the risk of metachronous tumors and for genetic counseling of other family members.
Are there short distance non-perturbative contributions to the QCD static potential?
Creators: name: Bali, Gunnar S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We find that perturbation theory fails to describe the short range static potential as obtained from quenched lattice simulations, at least for source separations r > 1/(6 GeV). The difference between the non-perturbatively determined potential and perturbation theory at short distance is well parameterised by a linear term with a slope of approximately 1.2 GeV^2 that is significantly bigger than the string tension, sigma = 0.21 GeV^2
description: 11 pages Latex, elsart style with 3 epsf figures, some figures and formulas have changed due to a sign error in the original manuscript, Title changed, typos corrected, references updated
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0118v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0118v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0118v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
A New Generation of Cool White Dwarf Atmosphere Models. I. Theoretical Framework and Applications to DZ Stars
Creators: name: Blouin, Simon
name: Dufour, Patrick
name: Allard, Nicole F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The photospheres of the coolest helium-atmosphere white dwarfs are characterized by fluid-like densities. Under those conditions, standard approximations used in model atmosphere codes are no longer appropriate. Unfortunately, the majority of cool He-rich white dwarfs show no spectral features, giving us no opportunities to put more elaborate models to the test. In the few cases where spectral features are observed (such as in cool DQ or DZ stars), current models completely fail to reproduce the spectroscopic data, signaling shortcomings in our theoretical framework. In order to fully trust parameters derived solely from the energy distribution, it is thus important to at least succeed in reproducing the spectra of the few coolest stars exhibiting spectral features, especially since such stars possess even less extreme physical conditions due to the presence of heavy elements. In this paper, we revise every building block of our model atmosphere code in order to eliminate low-density approximations. Our updated white dwarf atmosphere code incorporates state-of-the-art constitutive physics suitable for the conditions found in cool helium-rich stars (DC and DZ white dwarfs). This includes new high-density metal line profiles, nonideal continuum opacities, an accurate equation of state and a detailed description of the ionization equilibrium. In particular, we present new ab initio calculations to assess the ionization equilibrium of heavy elements (C, Ca, Fe, Mg and Na) in a dense helium medium and show how our improved models allow us to achieve better spectral fits for two cool DZ stars, Ross 640 and LP 658-2.
description: 18 pages, 19 figures. Accepted for publication in The Astrophysical Journal
Simultaneous elastic shape optimization for a domain splitting in bone tissue engineering
Creators: name: Dondl, Patrick
name: Poh, Patrina S. P.
name: Rumpf, Martin
name: Simon, Stefan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65K10, 49M30, 74B05, 35Q92

description: This paper deals with the simulateneous optimization of a subset $\mathcal{O}_0$ of some domain $Ω$ and its complement $\mathcal{O}_1 = Ω\setminus \overline{\mathcal{O}}_0$ both considered as separate elastic objects subject to a set of loading scenarios. If one asks for a configuration which minimizes the maximal elastic cost functional both phases compete for space since elastic shapes usually get mechanically more stable when being enlarged. Such a problem arises in biomechanics where a bioresorbable polymer scaffold is implanted in place of lost bone tissue and in a regeneration phase new bone tissue grows in the scaffold complement via osteogenesis. In fact, the polymer scaffold should be mechanically stable to bear loading in the early stage regeneration phase and at the same time the new bone tissue grown in the complement of this scaffold should as well bear the loading. Here, this optimal subdomain splitting problem with appropriate elastic cost functionals is introduced and existence of optimal two phase configurations is established for a regularized formulation. Furthermore, based on a phase field approximation a finite element discretization is derived. Numerical experiments are presented for the design of optimal periodic scaffold microstructure.
Galactic PeVatrons and helping to find them: Effects of Galactic absorption on the observed spectra of very high energy $γ$-ray sources
Creators: name: Porter, Troy A.
name: Rowell, Gavin P.
name: Johannesson, Gudlaugur
name: Moskalenko, Igor V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Identification of the cosmic-ray (CR) `PeVatrons', which are sources capable of accelerating particles to $\sim10^{15}$ eV energies and higher, may lead to resolving the long-standing question of the origin of the spectral feature in the all-particle CR spectrum known as the `knee'. Because CRs with these energies are deflected by interstellar magnetic fields identification of individual sources and determination of their spectral characteristics is more likely via very high energy $γ$-ray emissions, which provide the necessary directional information. However, pair production on the interstellar radiation field (ISRF) and cosmic microwave background leads to steepening of the high-energy tails of $γ$-ray spectra, and should be corrected for to enable true properties of the spectrum at source to be recovered. Employing recently developed three-dimensional ISRF models this paper quantifies the pair-absorption effect on spectra for sources in the Galactic centre direction at 8.5 kpc and 23.5 kpc distance, with the latter corresponding to the far side of the Galactic stellar disc where it is expected that discrimination of spectral features $>10$ TeV will be possible by the forthcoming Cherenkov Telescope Array. The estimates made suggest spectral cutoffs could be underestimated by factors of a few in the energy range so far sampled by TeV $γ$-ray telescopes. As an example to illustrate this, the recent HESS measurements of diffuse $γ$-ray emissions possibly associated with injection of CRs nearby Sgr A$^*$ are ISRF-corrected, and estimates of the spectral cutoff are re-evaluated. It is found that it could be higher by up to a factor $\sim 2$, indicating that these emissions may be consistent with a CR accelerator with a spectral cutoff of at least 1 PeV at the 95% confidence level.
description: 6 pages, 3 figures. Accepted by Physical Review D, Rapid Communications
Isospin Physics in Heavy-Ion Collisions at Intermediate Energies
Creators: name: Li, Bao-An
name: Ko, Che Ming
name: Bauer, Wolfgang
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In nuclear collisions induced by stable or radioactive neutron-rich nuclei a transient state of nuclear matter with an appreciable isospin asymmetry as well as thermal and compressional excitation can be created. This offers the possibility to study the properties of nuclear matter in the region between symmetric nuclear matter and pure neutron matter. In this review, we discuss recent theoretical studies of the equation of state of isospin-asymmetric nuclear matter and its relations to the properties of neutron stars and radioactive nuclei. Chemical and mechanical instabilities as well as the liquid-gas phase transition in asymmetric nuclear matter are investigated. The in-medium nucleon-nucleon cross sections at different isospin states are reviewed as they affect significantly the dynamics of heavy ion collisions induced by radioactive beams. We then discuss an isospin-dependent transport model, which includes different mean-field potentials and cross sections for the proton and neutron, and its application to these reactions. Furthermore, we review the comparisons between theoretical predictions and available experimental data. In particular, we discuss the study of nuclear stopping in terms of isospin equilibration, the dependence of nuclear collective flow and balance energy on the isospin-dependent nuclear equation of state and cross sections, the isospin dependence of total nuclear reaction cross sections, and the role of isospin in preequilibrium nucleon emissions and subthreshold pion production.
description: 101 pages with embedded epsf figures, review article for "International Journal of Modern Physics E: Nuclear Physics". Send request for a hard copy to 1/authors
Schramm-Loewner evolution in the random scatterer Henon-percolation landscapes
Creators: name: Najafi, M. N.
name: Tizdast, S.
name: Cheraghalizadeh, J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Shcramm-Loewner evolution (SLE) is a correlated exploration process, in which for the chordal set up, the tip of the trace evolves in a self-avoiding manner towards the infinity. The resulting curves are named SLE$_κ$, emphasizing that the process is controlled by one parameter $κ$ which classifies the conformal invariant random curves. This process when experiences some environmental imperfections, or equivalently some scattering random points (which can be absorbing or repelling) results to some other effective scale-invariant curves, which are described by the other effective fractal dimensions and equivalently the other effective diffusivity parameters $κ_{\text{effective}}$. In this paper we use the classical Henon map to generate scattering (absorbing/repelling) points over the lattice in a random way, that realizes the percolation lattice with which the SLE trace interact. We find some meaningful power-law changes of the fractal dimension (and also the effective diffusivity parameter) in terms of the strength of the Henon coupling, namely the $z$ parameter. For this, we have tested the fractal dimension of the curves as well as the left passage probability. Our observations are in support of the fact that this deviation (or equivalently non-zero $z$s) breaks the conformal symmetry of the curves. Also the effective fractal dimension of the curves vary with the second power of $z$, i.e. $D_F(z)-D_F(z=0)\sim z^2$.
The Near Horizon Geometry Equation on Compact 2-Manifolds Including the General Solution for g > 0
Creators: name: Dobkowski-Ryłko, Denis
name: Kamiński, Wojciech
name: Lewandowski, Jerzy
name: Szereszewski, Adam
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Near Horizon Geometry (NHG) equation with a cosmological constant Λ is considered on compact 2-dimensional manifolds. It is shown that every solution satisfies the Type D equation at every point of the manifold. A similar result known in the literature was valid only for non-degenerate in a suitable way points of a given solution. At the degenerate points the Type D equation was not applicable. In the current paper we prove that the degeneracy is ruled out by the compactness. Using that result we find all the solutions to the NHG equation on compact 2-dimensional manifolds of non-positive Euler characteristics. Some integrability conditions known earlier in the Λ = 0 case are generalized to arbitrary value of Λ. They may be still useful for compact 2-manifolds of positive Euler characteristic.
Structured Interpretation of Temporal Relations
Creators: name: Zhang, Yuchen
name: Xue, Nianwen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Temporal relations between events and time expressions in a document are often modeled in an unstructured manner where relations between individual pairs of time expressions and events are considered in isolation. This often results in inconsistent and incomplete annotation and computational modeling. We propose a novel annotation approach where events and time expressions in a document form a dependency tree in which each dependency relation corresponds to an instance of temporal anaphora where the antecedent is the parent and the anaphor is the child. We annotate a corpus of 235 documents using this approach in the two genres of news and narratives, with 48 documents doubly annotated. We report a stable and high inter-annotator agreement on the doubly annotated subset, validating our approach, and perform a quantitative comparison between the two genres of the entire corpus. We make this corpus publicly available.
description: 9 pages, 2 figures, 8 tables, LREC-2018
Stopping and Radial Flow in Central 58Ni + 58Ni Collisions between 1 and 2 AGeV
Creators: name: FOPI Collaboration
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The production of charged pions, protons and deuterons has been studied in central collisions of 58Ni on 58Ni at incident beam energies of 1.06, 1.45 and 1.93 AGeV. The dependence of transverse-momentum and rapidity spectra on the beam energy and on the centrality of the collison is presented. It is shown that the scaling of the mean rapidity shift of protons established for AGS and SPS energies is valid down to 1 AGeV. The degree of nuclear stopping is discussed; the IQMD transport model reproduces the measured proton rapidity spectra for the most central events reasonably well, but does not show any sensitivity between the soft and the hard equation of state (EoS). A radial flow analysis, using the midrapidity transverse-momentum spectra, delivers freeze-out temperatures T and radial flow velocities beta_r which increase with beam energy up to 2 AGeV; in comparison to existing data of Au on Au over a large range of energies only beta_r shows a system size dependence.
title: Evaluation nachstationärer Versorgungsmöglichkeiten für geriatrische Patienten mit proximaler Femurfraktur
Creators: name: Weidlich, Anne
name: Beyer, Franziska
name: Lützner, Jörg
name: Schneiders, Wolfgang
name: Postler, Anne
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: Geriatrie
subject: Alterstraumatologie
subject: Proximale Femurfraktur
subject: Rehabilitation
subject: Selbsthilfefähigkeit
subject: Gehfähigkeit
subject: 610 Medical sciences; Medicine

description: Fragestellung: Aufgrund des steigenden Anteils geriatrischer Patienten mit proximaler Femurfraktur wird es zunehmend schwieriger, einen Platz für diese in einer Weiterbehandlungseinrichtung zu finden. Es gibt außerdem keinen klaren Hinweis, durch welche Form der nachstationären Behandlung[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2019)
Adiabatic Dynamics of Superconducting Quantum Point Contacts
Creators: name: Averin, D.
name: Bardas, A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Starting from the quasiclassical equations for non-equilibrium Green's functions we derive a simple kinetic equation that governs ac Josephson effect in a superconducting quantum point contact at small bias voltages. In contrast to existing approaches the kinetic equation is valid for voltages with arbitrary time dependence. We use this equation to calculate frequency-dependent linear conductance, and dc $I\!-\!V$ characteristics with and without microwave radiation for resistively shunted quantum point contacts. A novel feature of the $I\!-\!V$ characteristics is the excess current $2I_c/π$ appearing at small voltages. An important by-product of our derivation is the analytical proof that the microscopic expression for the current coincides at arbitrary voltages with the expression that follows from the Bogolyubov-de Gennes equations, if one uses appropriate amplitudes of Andreev reflection which contain information about microscopic structure of the superconductors.
description: 12 Pages, REVTEX 3.0, 3 figures available upon request
Alternative Supersymmetric Spectra
Creators: name: Everett, Lisa
name: Langacker, Paul
name: Plumacher, Michael
name: Wang, Jing
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe the features of supersymmetric spectra, alternative to and qualitatively different from that of most versions of the MSSM. The spectra are motivated by extensions of the MSSM with an extra U(1)' gauge symmetry, expected in many grand unified and superstring models, which provide a plausible solution to the mu problem, both for models with supergravity and for gauge-mediated supersymmetry breaking. Typically, many or all of the squarks are rather heavy (larger than one TeV), especially for the first two families, as are the sleptons in the supergravity models. However, there is a richer spectrum of Higgs particles, neutralinos, and (possibly) charginos. Concrete examples of such spectra are presented, and the phenomenological implications are briefly discussed.
description: 12 pages, LaTeX
Resonant edge-state switching in polariton topological insulators
Creators: name: Zhang, Yiqi
name: Kartashov, Yaroslav V.
name: Zhang, Yanpeng
name: Torner, Lluis
name: Skryabin, Dmitry V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Topological insulators are unique devices supporting unidirectional edge states at their interfaces. Due to topological protection, such edge states persist in the presence of disorder and do not experience backscattering upon interaction with defects. We show that despite the topological protection and the fact that such states at the opposite edges of a ribbon carry opposite currents, there exists a physical mechanism allowing to resonantly couple topological excitations propagating at opposite edges. Such mechanism uses weak periodic temporal modulations of the system parameters and does not affect the internal symmetry and topology of the system. We study this mechanism in truncated honeycomb arrays of microcavity pillars, where topological insulation is possible for polaritons under the combined action of spin-orbit coupling and Zeeman splitting in the external magnetic field. The temporal modulation of the potential leads to a periodic switching between topological states with the same Bloch momentum, but located at the opposite edges. The switching rate is found to increase for narrower ribbon structures and for larger modulation depth, though it is changing nonmonotonically with the Bloch momentum of the input edge state. Our results provide a promising realization of a coupling device based on topologically protected states. The proposed scheme can be used in other topological photonic and condensed matter systems, including Floquet insulators and graphene.
description: 10 pages, 10 figures
Biomarkers of renal tumors the current state and clinical perspectives
Creators: name: Ivanova, Anna
Publisher: name: figshare
Year: 2018
Subjects: Medicine

description: Renal cell carcinoma (RCC) ranks the first death rate among the urogenital tumors, whereas its incidence follows the incidences of prostate and bladder cancer. The diagnosis of RCC at early stages allows immediately undertaking appropriate treatment, which significantly increases patients' survival rate. Early and accurate diagnosis avoids inadequate treatment, provides the disease progression forecast, and permits to apply more efficient therapy. Unfortunately, the small renal tumors are usually asymptomatic resulting in the late diagnosis and, therefore, low efficacy of treatment. Thus, sensible and preventive biomarkers are essential for early RCC detection and monitoring of its progression. So far, many attempts were performed aimed at recognizing novel informative kidney tumor biomarkers applicable for early detection of the disease and possessing prognostic and predictive capabilities. This review summarizes recent advances in renal tumor biomarkers recognition, their diagnostic and prognostic values, and clinical feasibility.
Sterile Neutrinos in E_6 and a Natural Understanding of Vacuum Oscillation Solution to the Solar Neutrino Puzzle
Creators: name: Chacko, Z.
name: Mohapatra, R. N.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If Nature has chosen the vacuum oscillation solution to the Solar neutrino puzzle, a key theoretical challenge is to understand the extreme smallness of the $Δm^2_{ν_e-ν_X}$ ($\sim 10^{-10} eV^2$) required for the purpose. We find that in a class of models such as [SU(3)]^3 or its parent group E_6, which contain one sterile neutrino, $ν_{is}$ for each family, the $Δm^2_{ν_i-ν_{is}}$ is proportional to the cube of the lepton Yukawa coupling. Therefore fitting the atmospheric neutrino data then predicts the $ν_e-ν_{es}$ mass difference square to be $\sim (\frac{m_e}{m_μ})^3 Δm^2_{atmos}$, where the atmospheric neutrino data is assumed to be solved via the $ν_μ-ν_{μs}$ oscillation. This provides a natural explanation of the vacuum oscillation solution to the solar neutrino problem.
description: 7 pages, UMD-PP-99-109; new references added; no other change
Atmospheric and Solar Neutrino Oscillations in \nuMSSM and Beyond
Creators: name: Shafi, Qaisar
name: Tavartkiladze, Zurab
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show how a unified description of the various two-flavor neutrino oscillation solutions, allowed by the atmospheric and solar neutrino experiments, are naturally realized within the framework of $ν$MSSM (MSSM augmented with the seesaw mechanism) and beyond, especially grand unified theories. A general mechanism for achieving maximal mixing to resolve the atmospheric anomaly is discussed, and applied to the flipped SU(5) model. Except in the case of MSSM and SU(5), a light sterile neutrino is an inevitable consequence of our considerations. The bi-maximal neutrino mixing scenario is one of the options considered. Neutrino hot dark matter can arise in models with maximal $ν_μ-ν_s$ oscillations. A ${\cal U}(1)$ flavor symmetry, motivated by the charged fermion mass hierarchies and the magnitudes of the CKM matrix elements, plays a central role.
description: 14 pp, LATEX. Typos are corrected, possibilities of the neutrino HDM in various scenarios are emphasized