cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remarks on the global regularity of two-dimensional magnetohydrodynamics system with zero dissipation
Creators: name: Yamazaki, Kazuo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the two-dimensional generalized magnetohydrodynamics system with generalized dissipation and diffusion in terms of fractional Laplacians. It is known that the classical magnetohydrodynamics system with full Laplacians in both dissipation and diffusion terms admits a unique global strong solution pair. Making use of the special structure of the system in the two-dimensional case, we show in particular that the solution pair remains smooth when we have zero dissipation but only magnetic diffusion with its power of the fractional Laplacian $β> \frac{3}{2}$.
description: Some typos were fixed and details were added
Magnetic phase diagrams, domain switching and a quantum phase transition of the quasi-1D Ising-like antiferromagnet BaCo2V2O8
Creators: name: Niesen, S. K.
name: Kolland, G.
name: Seher, M.
name: Breunig, O.
name: Valldor, M.
name: Braden, M.
name: Grenier, B.
name: Lorenz, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the effective Ising spin-1/2 antiferromagnetic chain system BaCo$_2$V$_2$O$_8, the magnetic-field influence is highly anisotropic. For magnetic fields along the easy axis $c$, the Néel order is strongly suppressed already for low fields and an incommensurate order is entered above 4 T. We present a detailed study of the magnetic phase diagrams for different magnetic field directions, which are derived from magnetization data, high-resolution thermal expansion and magnetostriction measurements as well as from the thermal conductivity. Zero-field thermal expansion data reveal that the magnetic transition is accompanied by an orthorhombic distortion within the $ab$ plane. Under ambient conditions the crystals are heavily twinned, but the domain orientation can be influenced either by applying uniaxial pressure or a magnetic field along the [100] direction. In addition, our data reveal a pronounced in-plane magnetic anisotropy for fields applied within the $ab$ plane. For $H || [110]$, the magnetic field influence on T$_N$ is weak, whereas for magnetic fields applied along [100], T$_N$ vanishes at about 10 T and the zero-field Néel order is completely suppressed as is confirmed by neutron diffraction data. The second-order phase transition strongly suggests a quantum critical point being present at $H\simeq 10$ T parallel [100], where the Néel order probably changes to a spin-liquid state.
description: 10 pages, 10 figures
Farm-scale variations in soil color as influenced by organic matter and iron oxides in Japanese paddy fields
Creators: name: Moritsuka, Naoki
name: Matsuoka, Kaori
name: Katsura, Keisuke
name: Yanai, Junta
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Plant Biology
subject: 60506 Virology

description: To understand how soil color is influenced by soil components at the farm scale, we evaluated spatial variation in soil color and related soil properties in Japanese paddy fields. After harvest of rice, 246 surface soil samples were collected in 10-m grids from five contiguous irrigated paddy fields, each with an area of about 0.5 ha. The samples were analyzed to determine color parameters (L*, a*, and b*), and contents of total C, total N, Fe oxides, sand, and loss-on-ignition. The results obtained were modeled and mapped geostatistically. All color parameters indicated strong spatial dependence with long ranges (>85 m). In contrast, total C and N showed short ranges (about 40 m). The contents of Fe oxides, sand, and loss-on-ignition showed intermediate ranges (50–85 m). The ranges of these properties and their distribution patterns suggested that the contents of total C and N were influenced by long-term application of manure and that sand content was influenced by topography and past land consolidation. Further soil color analysis after removal of organic matter or silt plus clay particles revealed that soil organic matter, texture, and Fe oxides affected soil color parameters in a complex manner. Prediction of total C from soil darkness was hindered by the presence of silt plus clay particles containing Fe oxides. On the other hand, citrate-dithionite extractable Fe was estimated accurately from the b* value (yellowness), which can be useful for predicting the occurrence of akiochi (autumn decline) disease of rice at the farm scale.
Inhomogenous loop quantum cosmology with matter
Creators: name: Blas, Daniel Martín-de
name: Martín-Benito, Mercedes
name: Marugán, Guillermo A. Mena
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The linearly polarized Gowdy $T^3$ model with a massless scalar field with the same symmetries as the metric is quantized by applying a hybrid approach. The homogeneous geometry degrees of freedom are loop quantized, fact which leads to the resolution of the cosmological singularity, while a Fock quantization is employed for both matter and gravitational inhomogeneities. Owing to the inclusion of the massless scalar field this system allows us to modelize flat Friedmann-Robertson-Walker cosmologies filled with inhomogeneities propagating in one direction. It provides a perfect scenario to study the quantum back-reaction between the inhomogeneities and the polymeric homogeneous and isotropic background.
description: 4 pages, Contribution to the proceedings of the Loops 11-Madrid conference
Effects of tropospheric ozone pollution on net primary productivity and carbon storage in terrestrial ecosystems of China
Creators: name: Ren, Wei
name: Tian, Hanqin
name: Liu, Mingliang
name: Zhang, Chi
name: Chen, Guangsheng
name: Pan, Shufen
name: Felzer, Benjamin
name: Xu, Xiaofeng
Publisher: name: AMER GEOPHYSICAL UNION
Year: 2007
Subjects: GROUND-LEVEL OZONE; LAND-USE CHANGE; NITROGEN DEPOSITION; CLIMATE VARIABILITY; NO(X) EMISSIONS; ELEVATED OZONE; SURFACE OZONE; EAST-ASIA; MODEL; CO2

description: We investigated the potential effects of elevated ozone (O-3) along with climate variability, increasing CO2, and land use change on net primary productivity (NPP) and carbon storage in China's terrestrial ecosystems for the period 1961 - 2000 with a process-based Dynamic Land Ecosystem Model (DLEM) forced by the gridded data of historical tropospheric O-3 and other environmental factors. The simulated results showed that elevated O-3 could result in a mean 4.5% reduction in NPP and 0.9% reduction in total carbon storage nationwide from 1961 to 2000. The reduction of carbon storage varied from 0.1 Tg C to 312 Tg C (a decreased rate ranging from 0.2% to 6.9%) among plant functional types. The effects of tropospheric O-3 on NPP were strongest in east-central China. Significant reductions in NPP occurred in northeastern and central China where a large proportion of cropland is distributed. The O-3 effects on carbon fluxes and storage are dependent upon other environmental factors. Therefore direct and indirect effects of O-3, as well as interactive effects with other environmental factors, should be taken into account in order to accurately assess the regional carbon budget in China. The results showed that the adverse influences of increasing O-3 concentration across China on NPP could be an important disturbance factor on carbon storage in the near future, and the improvement of air quality in China could enhance the capability of China's terrestrial ecosystems to sequester more atmospheric CO2. Our estimation of O-3 impacts on NPP and carbon storage in China, however, must be used with caution because of the limitation of historical tropospheric O-3 data and other uncertainties associated with model parameters and field experiments.
Effect of magnetic field on competition between superconductivity and charge order below the pseudogap state
Creators: name: Meier, H.
name: Einenkel, M.
name: Pépin, C.
name: Efetov, K. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically investigate the T-B phase diagram of cuprates building on the SU(2) pseudogap order recently obtained from the spin-fermion model. At low temperatures, our analysis reveals an almost temperature-independent critical magnetic field B_{QDW} at which d-wave superconductivity switches to the quadrupole density wave (QDW) phase. For temperatures beyond a certain value of the order of the zero-field superconducting transition temperature T_c, the critical field B_{QDW}(T) sharply grows. We compare our results derived within the effective SU(2) non-linear sigma-model with the phase diagram recently obtained by sound velocity measurements by LeBoeuf et al. [Nat. Phys. 9, 79 (2013)].
description: 5 pages, 1 figure
Statistical Approach for Predicting Factors of Mood Method for Object Oriented
Creators: name: Jassim, Firas
name: Altaani, Fawzi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Object oriented design is becoming more popular in software development and object oriented design metrics which is an essential part of software environment. The main goal in this paper is to predict factors of MOOD method for OO using a statistical approach. Therefore, linear regression model is used to find the relationship between factors of MOOD method and their influences on OO software measurements. Fortunately, through this process a prediction could be made for the line of code (LOC), number of classes (NOC), number of methods (NOM), and number of attributes (NOA). These measurements permit designers to access the software early in process, making changes that will reduce complexity and improve the continuing capability of the design.
description: 5 pages, 2 figures, 7 tables
Videnskabsformidlingsaktivitet – Science Communication – Svendborg Gymnasium – Fysikklub - November 2023
Creators: name: Hinse, Tobias Cornelius
Publisher: name: Zenodo
Year: 2023

description: PhysicsClub activity on transiting extrasolar planets and exomoons for interested physics highschool students. Three parts: 1) lecture, 2) practical demonstration and photometric time-series analysis and 3) theoretical derivation of relevant expressions for a transiting extrasolar planet. This project is funded by Villum Fonden "Fysikklubber for Region Syddanmark".
Dust formation in the winds of AGBs: the contribution at low metallicities
Creators: name: Di Criscienzo, Marcella
name: Dell'Agli, Flavia
name: Ventura, Paolo
name: Schneider, Raffaella
name: Valiante, Rosa
name: La Franca, Fabio
name: Rossi, Corinne
name: Gallerani, Simona
name: Maiolino, Roberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new models for the evolution of stars with mass in the range 1Msun < M < 7.5Msun, followed from the pre-main-sequence through the asymptotic giant branch phase. The metallicity adopted is $Z=3*10^{-4} (which, with an alpha-enhancement of +0.4, corresponds to [Fe/H]=-2). Dust formation is described by following the growth of dust grains of various types as the wind expands from the stellar surface. Models with mass M>3Msun experience Hot Bottom Burning, thus maintaining the surface C/O below unity. Unlike higher Z models, the scarcity of silicon available in the envelope prevents the formation of silicates in meaningful quantities, sufficient to trigger the acceleration of the wind via radiation pressure on the dust grains formed. No silicate formation occurs below a threshold metallicity of Z=10^{-3}. Low--mass stars, with M< 2.5Msun become carbon stars, forming solid carbon dust in their surroundings. The total dust mass formed depends on the uncertain extent of the inwards penetration of the convective envelope during the Third Dredge--Up episodes following the Thermal Pulses. Carbon grains have sizes 0.08 micron < a_C < 0.12 micron and the total amount of dust formed (increasing with the mass of the star) is M_C=(2-6)*10^{-4}Msun. Our results imply that AGB stars with Z=3*10^{-4} can only contribute to carbon dust enrichment of the interstellar medium on relatively long timescales, > 300 Myr, comparable to the evolutionary time of a 3Msun star. At lower metallicities the scarcity of silicon available and the presence of Hot Bottom Burning even in M< 2Msun, prevents the formation of silicate and carbon grains. We extrapolate our conclusion to more metal--poor environments, and deduce that at Z < 10^{-4} dust enrichment is mostly due to metal condensation in supernova ejecta.
description: 13 pages, 8 figures, accepted for publication on MNRAS
A Bayesian approach to scaling relations for amplitudes of solar-like oscillations in Kepler stars
Creators: name: Corsaro, E.
name: Fröhlich, H. -E.
name: Bonanno, A.
name: Huber, D.
name: Bedding, T. R.
name: Benomar, O.
name: De Ridder, J.
name: Stello, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate different amplitude scaling relations adopted for the asteroseismology of stars that show solar-like oscillations. Amplitudes are among the most challenging asteroseismic quantities to handle because of the large uncertainties that arise in measuring the background level in the star's power spectrum. We present results computed by means of a Bayesian inference on a sample of 1640 stars observed with Kepler, spanning from main sequence to red giant stars, for 12 models used for amplitude predictions and exploiting recently well-calibrated effective temperatures from SDSS photometry. We test the candidate amplitude scaling relations by means of a Bayesian model comparison. We find the model having a separate dependence upon the mass of the stars to be largely the most favored one. The differences among models and the differences seen in their free parameters from early to late phases of stellar evolution are also highlighted.
description: 17 pages, 35 figures, 11 tables, accepted for publication in MNRAS
Beyond alternating permutations: Pattern avoidance in Young diagrams and tableaux
Creators: name: Gowravaram, Nihal
name: Jagadeesan, Ravi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 05A19

description: We investigate pattern avoidance in alternating permutations and generalizations thereof. First, we study pattern avoidance in an alternating analogue of Young diagrams. In particular, we extend Babson-West's notion of shape-Wilf equivalence to apply to alternating permutations and so generalize results of Backelin-West-Xin and Ouchterlony to alternating permutations. Second, we study pattern avoidance in the more general context of permutations with restricted ascents and descents. We consider a question of Lewis regarding permutations that are the reading words of thickened staircase Young tableaux, that is, permutations that have (k - 1) ascents followed by a descent, followed by (k - 1) ascents, et cetera. We determine the relative sizes of the sets of pattern-avoiding (k - 1)-ascent permutations in terms of the forbidden pattern. Furthermore, we give inequalities in the sizes of sets of pattern-avoiding permutations in this context that arise from further extensions of shape-equivalence type enumerations.
description: 49 pages; comments are welcomed
Analysis of linearized inverse problems in ultrasound transmission imaging
Creators: name: Wang, H.
name: Gemmeke, H.
name: Van Dongen, K. W. A.
name: Hopp, T.
name: Hesser, J.
Publisher: name: KIT Scientific Publishing
Year: 2021
Subjects: Gauss-Newton method
Inverse problem
Sensitivity analysis
Tikhonov regular-ization
USCT

description: The purpose of this paper is to analyze the linearized inverse problem during the iterativesolution process of the ill-posed nonlinear inverse problem of image reconstruction for ultra-sound transmission imaging. We show that the conjugate gradient applied to normal equation(CGNE) method gives more reliable solutions for linearized systems than Tikhonov regular-ization methods. The linearized systems are more sensitive when treated by CGNE than byTikhonov regularization methods. The Tikhonov regularization is less effective at the be-ginning of the outer-loop iteration, where the nonlinearity is dominating while the conjugategradient for the linearized system stops earlier. Only when the linear approximation is goodenough to describe the whole system, Tikhonov regularization can fully play its role and giveslightly better reconstruction results as compared to CGNE in a very noisy case.
Neutrinoless Quadruple Beta Decay
Creators: name: Heeck, Julian
name: Rodejohann, Werner
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We point out that lepton number violation is possible even if neutrinos are Dirac particles. We illustrate this by constructing a simple model that allows for lepton number violation by four units only. As a consequence, neutrinoless double beta decay is forbidden, but neutrinoless quadruple beta decay is possible: $(A,Z) \to (A,Z+4) + 4 e^-$. We identify three candidate isotopes for this decay, the most promising one being Nd-150 due to its high $Q_{0ν4β}$-value of 2 MeV. Analogous processes, such as neutrinoless quadruple electron capture, are also possible. The expected lifetimes are extremely long, and experimental searches are challenging.
description: 5 pages, 4 figures. Minor changes, accepted by EPL
A micro-structured ion-implanted magnonic crystal
Creators: name: Obry, Björn
name: Pirro, Philipp
name: Brächer, Thomas
name: Chumak, Andrii V.
name: Osten, Julia
name: Ciubotaru, Florin
name: Serga, Alexander A.
name: Fassbender, Jürgen
name: Hillebrands, Burkard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate spin-wave propagation in a microstructured magnonic-crystal waveguide fabricated by localized ion implantation. The irradiation caused a periodic variation in the saturation magnetization along the waveguide. As a consequence, the spin-wave transmission spectrum exhibits a set of frequency bands, where spin-wave propagation is suppressed. A weak modification of the saturation magnetization by 7% is sufficient to decrease the spin-wave transmission in the band gaps by a factor of 10. These results evidence the applicability of localized ion implantation for the fabrication of efficient micron- and nano-sized magnonic crystals for magnon spintronic applications.
description: 4 pages, 3 figures, submitted to Applied Physics Letters
Behaviour of a muonic atom as an acceptor centre in diamond
Creators: name: Mamedov, T. N.
name: Baturin, A. S.
name: Gritsaj, K. I.
name: Maisuradze, A.
name: Ralchenko, V. G.
name: Scheuermann, R.
name: Sedlak, K.
name: Stoykov, A. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Polarized negative muons were used to study the behaviour of the boron acceptor centre in synthetic diamond produced by the chemical vapour deposition (CVD) method. The negative muon substitutes one of the electrons in a carbon atom, and this muonic atom imitates the boron acceptor impurity in diamond. The temperature dependence of the muon spin relaxation rate and spin precession frequency were measured in the range of 20 - 330 K in a transverse magnetic field of 14 kOe. For the first time a negative shift of the muon spin precession was observed in diamond. It is tentatively attributed to an anisotropic hyperfine interaction in the boron acceptor. The magnetic measurements showed that the magnetic susceptibility of the CVD sample was close to that of the purest natural diamond.
description: 8 pages, 3 figures
title: Enough potential repudiation: economic and legal aspects of sovereign debt in the pandemic era
Creators: name: Gelpern, Anna
name: Panizza, Ugo
Publisher: name: Graduate Institute of International and Development Studies
publisherIdentifier: https://ror.org/007ygn379
publisherIdentifierScheme: ROR
Year: 2022

description: Graduate Institute of International and Development Studies Working Paper ; no. 09/2022
title: Male teachers in school: representations and dynamics
Creators: name: Ederoclite, Mario
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2023

description: This research is to gain a better understanding of how masculinity is portrayed, manifested, or subverted in educational and school environments through narratives of educators and teacher. This contribution intends to offer the first phase of the research, focusing specifically on the consequences for teachers' well-being, through the analysis of data from focus groups. The first findings highlight how gender is perceived as a fundamental category for both the individual professional and the school context, and how this assumption constructs an imaginary and a repertoire of social representations that shape the actions and attitudes of men working in early childhood education.
X-ray resonant photoexcitation: line widths and energies of Kα transitions in highly charged Fe ions
Creators: name: Rudolph, J. K.
name: Bernitt, S.
name: Epp, S. W.
name: Steinbrügge, R.
name: Beilmann, C.
name: Brown, G. V.
name: Eberle, S.
name: Graf, A.
name: Harman, Z.
name: Hell, N.
name: Leutenegger, M.
name: Müller, A.
name: Schlage, K.
name: Wille, H. -C.
name: Yavas, H.
name: Ullrich, J.
name: López-Urrutia, J. R. Crespo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Photoabsorption by and fluorescence of the Kα transitions in highly charged iron ions are essential mechanisms for X-ray radiation transfer in astrophysical environments. We study photoabsorption due to the main Kα transitions in highly charged iron ions from heliumlike to fluorinelike (Fe 24+...17+) using monochromatic X-rays around 6.6 keV at the PETRA III synchrotron photon source. Natural linewidths were determined with hitherto unattained accuracy. The observed transitions are of particular interest for the understanding of photoexcited plasmas found in X-ray binaries and active galactic nuclei.
description: Revised version
The Impact of Performance Appraisal System on Employee's Motivation: A Case of Moha Soft Drinks Industry S.C
Creators: name: Lamesa Bulto
Publisher: name: Zenodo
Year: 2017

description: The aim of the study is to assess the impact of employee’s performance appraisal system of Moha

Soft Drinks S.C on its employee’s motivation. To undertake this research, objectives and

hypothesis were designed and assessed by mixed approach research study. To set background

information on the proposed hypothesis the theoretical, conceptual and empirical related

literatures were reviewed. In conducting this study, the required data had been obtained through

partially adopted and self developed questionnaire. In data gathering, 200 questionnaires were

distributed to the sampled employees. Among these 177 were returned and 23 responses were

uncompleted. So the response rate of this study is 88.50%. Research Instrument test was

conducted for reliability by Cronbach’s coefficient alpha whereas validity by factor analysis. In

the analysis descriptive statistics, correlation analysis and simple regression analysis were

performed indicating that employees of Moha Soft Drinks S.C have low level of motivation

towards the existing performance appraisal system and there is positive and significant

relationship between the independent PAS and dependent motivational issues.On the basis of the

findings, appropriate recommendations along with implications for further research have been

forwarded
Time-Dependent Gaussian Solution for the Kostin Equation around Classical Trajectories
Creators: name: Haas, F.
name: Bassalo, J. M. F.
name: da Silva, D. G.
name: Nassar, A. B.
name: Cattani, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The structure of time-dependent Gaussian solutions for the Kostin equation in dissipative quantum mechanics is analyzed. Expanding the generic external potential near the center of mass of the wave packet, one conclude that: the center of mass follows the dynamics of a classical particle under the external potential and a damping proportional to the velocity; the width of the wave packet satisfy a non-conservative Pinney equation. An appropriate perturbation theory is developed for the free particle case, solving the long standing problem of finding analytic expressions for square integrable solutions of the free Kostin equation. The associated Wigner function is also studied.
Proceedings International Workshop on the ACL2 Theorem Prover and its Applications
Creators: name: Gamboa, Ruben
name: Davis, Jared
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: This volume contains the proceedings of the Eleventh International Workshop on the ACL2 Theorem Prover and its Applications, held on May 30 and 31, 2013, in Laramie, Wyoming, USA. ACL2 is an industrial-strength automated reasoning system, the latest in the Boyer-Moore family of theorem provers. The ACL2 workshop is the major technical forum for users of the ACL2 theorem proving system to present research on the prover and its applications. This year's workshop received 15 submissions covering a wide range of applications, libraries, prover enhancements, interfaces, and experience reports. 11 papers were selected by the program committee for presentation at the workshop.
A far-from-CMC existence result for the constraint equations on manifolds with ends of cylindrical type
Creators: name: Leach, Jeremy
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We extend the study of the vacuum Einstein constraint equations on manifolds with ends of cylindrical type initiated by Chruściel and Mazzeo by finding a class of solutions to the fully coupled system on such manifolds. We show that given a Yamabe positive metric g, which is conformally asymptotically cylindrical on each end, and a 2-tensor K such that (tr K)^2 is bounded below away from zero and asymptotically constant, then we may find an initial data set (g',K') such that g' lies in the conformal class of g.
description: 22 pages, equation numbering and typos corrected
title: Differential progression of cognitive and mood-related phenotypes in a mouse model of chronic depression
Creators: name: Corrigan, Mark D.
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Depressive disorders remain highly prevalent and lack effective treatments. Mounting evidence suggests that disrupted cognitive processes, such as uninhibited negative thought patterns (“rumination”), play a significant role in the development of Major Depressive Disorder (MDD), either alongside or preceding serotonin-related mood imbalances. However, the underlying mechanisms of prodromal cognitive symptoms necessitate further investigation. This study explored the differential progression of cognitive and mood-related phenotypes in BALB/c mice subjected to the unpredictable chronic mild stress (UCMS) model. Following two UCMS durations—short-term (2–3 weeks) and long-term (5–6 weeks)—we observed the emergence of distinct symptom sets. Differences in neurobiological processes and substrates were also seen, including alterations to regional metabolic activity. Additionally, sex differences in behavioural measures were identified, in line with previous research pointing to sex-specific vulnerabilities to chronic stress. Altogether, our findings demonstrate the emergence of cognitive deficits associated with dysregulated inhibitory mechanisms in the early stages of depressive-like symptom onset, and may inform the development of preventive treatment strategies.
Optimal noise maximizes collective motion in heterogeneous media
Creators: name: Chepizhko, Oleksandr
name: Altmann, Eduardo G.
name: Peruani, Fernando
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the effect of spatial heterogeneity on the collective motion of self-propelled particles (SPPs). The heterogeneity is modeled as a random distribution of either static or diffusive obstacles, which the SPPs avoid while trying to align their movements. We find that such obstacles have a dramatic effect on the collective dynamics of usual SPP models. In particular, we report about the existence of an optimal (angular) noise amplitude that maximizes collective motion. We also show that while at low obstacle densities the system exhibits long-range order, in strongly heterogeneous media collective motion is quasi-long-range and exists only for noise values in between two critical noise values, with the system being disordered at both, large and low noise amplitudes. Since most real system have spatial heterogeneities, the finding of an optimal noise intensity has immediate practical and fundamental implications for the design and evolution of collective motion strategies.
description: to appear in Phys. Rev. Lett
Steady-periodic method for modeling mode instability in fiber amplifiers
Creators: name: Smith, Arlee V.
name: Smith, Jesse J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a detailed description of the methods used in our model of mode instability in high-power, rare earth-doped, large-mode-area fiber amplifiers. Our model assumes steady-periodic behavior, so it is appropriate to operation after turn on transients have dissipated. It can be adapted to transient cases as well. We describe our algorithm, which includes propagation of the signal field by fast-Fourier transforms, steady-state solutions of the laser gain equations, and two methods of solving the time-dependent heat equation: alternating-direction-implicit integration, and the Green's function method for steady-periodic heating.
description: 19 pages, 2 figures
Einfluss von Artesunate auf die Überlebensrate und die funktionell-neurologische Regeneration von Mäusen nach Herz-Kreislaufstillstand und kardiopulmonaler Reanimation
Creators: name: Wiebersinsky, Michael
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 610 Medical sciences Medicine

description: Die Arbeit setzt sich mit dem Einfluss von Artesunate auf die Überlebensrate und die funktionell-neurologische Regeneration von Mäusen nach Herz-Kreislaufstillstand und kardiopulmonaler Reanimation auseinander. Das hierbei verwendete Reanimationsmodell wird beschreiben und ausgewertet. Die Ergebnisse zeigen, dass die Verwendung von Artesunate im Reanimationsmodell an Mäusen gegenüber der herkömmlichen kardiopulmonalen Reanimation keinen Überlebensvorteil erbringt. Weiterhin zeichnet sich die Tendenz ab, dass das funktionell-neurologische Outcome sogar schlechter ausfällt.
CMOS-Compatible Nanowire Biosensors
Creators: name: Nguyen, Thanh C.
name: Qiu, Wanzhi
name: Altissimo, Matteo
name: Spizzirri, Paul G.
name: van Beveren, Laurens H. Willems
name: Skafidas, Efstratios
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this chapter, silicon nanowires that are compatible with CMOS fabrication processes have been described. It has been shown that these nanowires can be functionalized by conjugating monoclonal antibodies to their surface in order to build sensitive biochemical sensors. It has also been shown that by using frequency-based signals, all the necessary components to interrogate these nanowires can be built on low-cost CMOS processes.
description: Chapter 11, 14 pages
Chiral Luttinger liquids and a generalized Luttinger's theorem in fractional quantum Hall edges via finite-entanglement scaling
Creators: name: Varjas, Daniel
name: Zaletel, Michael P.
name: Moore, Joel E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use bosonic field theories and the infinite system density matrix renormalization group (iDMRG) method to study infinite strips of fractional quantum Hall (FQH) states starting from microscopic Hamiltonians. Finite-entanglement scaling allows us to accurately measure chiral central charge, edge mode exponents and momenta without finite-size errors. We analyze states in the first and second level of the standard hierarchy and compare our results to predictions of the chiral Luttinger liquid ($χ$LL) theory. The results confirm the universality of scaling exponents in chiral edges and demonstrate that renormalization is subject to universal relations in the non-chiral case. We prove a generalized Luttinger's theorem involving all singularities in the momentum-resolved density, which naturally arises when mapping Landau levels on a cylinder to a fermion chain and deepens our understanding of non-Fermi liquids in 1D.
description: 7 pages, 7 figures
Thünen-Baseline 2022 – 2032: Agrarökonomische Projektionen für Deutschland
Creators: name: Haß, Marlen
name: Deblitz, Claus
name: Freund, Florian
name: Kreins, Peter
name: Laquai, Verena
name: Offermann, Frank
name: Pelikan, Janine
name: Sturm, Viktoriya
name: Wegmann, Johannes
name: De Witte, Thomas
name: Wüstemann, Friedrich
name: Zinnbauer, Maximilian
name: Haß, Marlen
name: Deblitz, Claus
name: Freund, Florian
name: Kreins, Peter
name: Laquai, Verena
name: Offermann, Frank
name: Pelikan, Janine
name: Sturm, Viktoriya
name: Wegmann, Johannes
name: De Witte, Thomas
name: Wüstemann, Friedrich
name: Zinnbauer, Maximilian
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Financial Economics
subject: Research Methods/ Statistical Methods
subject: Agrarpolitik
subject: Politikfolgenabschätzung
subject: Modell
subject: Modellverbund
subject: agricultural policy
subject: impact assessment
subject: model
subject: model network

description: This report presents selected results of the Thünen-Baseline 2022-2032 as well as the assumptions underlying the projections. The Thünen-Baseline describes the expected developments of agricultural markets under given macro-economic conditions assuming no change in the current policy framework. Projections are based on the data and information available in spring 2022. The effects of the Russia-Ukraine war are not taken into account. The report includes projection results on agricultural trade, prices, demand, production, income and environmental effects. The presentation of the results focuses mainly on the developments of the German agricultural sector up to the year 2032 compared to the average of the base period 2018-2020. In the crop sector, results show that oilseed cultivation is likely to be expanded by 2032. This is because the oilseed sector becomes more competitive relative to grains driven by a stronger increase in yields as well as prices. In the meat sector, the decline in production observed in recent years due to higher environmental and animal welfare standards as well as changing dietary habits is expected to continue, especially for pork, while poultry production will continue to grow slightly until 2032. Moreover, favorable price developments on the milk market combined with a further increase in milk yield are likely to result in a moderate increase in milk deliveries over the projection period. The average real income of agricultural farms is expected to decline. In 2032 the real income of agricultural farms is likely to be significantly below the average level observed over the last ten years.
description: DOI:10.3220/REP1667811151000
Stabilizing switching signals for switched linear systems
Creators: name: Kundu, Atreyee
name: Chatterjee, Debasish
Publisher: name: arXiv
Year: 2013
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: 93D20

description: This article deals with stability of continuous-time switched linear systems under constrained switching. Given a family of linear systems, possibly containing unstable dynamics, we characterize a new class of switching signals under which the switched linear system generated by it and the family of systems is globally asymptotically stable. Our characterization of such stabilizing switching signals involves the asymptotic frequency of switching, the asymptotic fraction of activation of the constituent systems, and the asymptotic densities of admissible transitions among them. Our techniques employ multiple Lyapunov-like functions, and extend preceding results both in scope and applicability.
description: 15 pages; corrected version with new references
D5.4 - Comparative study on HEP data
Creators: name: Kourkoumelis, Christine
name: Vourakis, Stelios
name: Angelidakis, Stylianos
name: Fassouliotis, Dimitris
Publisher: name: Zenodo
Year: 2022

description: This report describes the REINFORCE Deliverable D5.4 namely, the Comparative Study on HEP Data. The results of the citizen scientist classifications from stages 1 and 2 are analysed and compared to algorithms which were developed in order to perform an automated and independent analysis of the simulated datasets. Stages 3a and 3b use real data collected by the ATLAS detector. Highly rated events are reported and discussed.
A Comparison of Solar Cycle Variations in the Equatorial Rotation Rates of the Sun's Subsurface, Surface, Corona, and Sunspot Groups
Creators: name: Javaraiah, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using the Solar Optical Observing Network (SOON) sunspot-group data for the period 1985-2010, the variations in the annual mean equatorial-rotation rates of the sunspot groups are determined and compared with the known variations in the solar equatorial-rotation rates determined from the following data: i) the plasma rotation rates at 0.94Rsun, 0.95Rsun,...,1.0Rsun measured by Global Oscillation Network Group (GONG) during the period 1995-2010, ii) the data on the soft X-ray corona determined from Yohkoh/SXT full disk images for the years 1992-2001, iii) the data on small bright coronal structures (SBCS) which were traced in Solar and Heliospheric Observatory (SOHO)/EIT images during the period 1998-2006, and iv) the Mount Wilson Doppler-velocity measurements during the period 1986-2007. A large portion (up to approximate 30 deg latitude) of the mean differential-rotation profile of the sunspot groups lies between those of the internal differential-rotation rates at 0.94Rsun and 0.98Rsun.The variation in the yearly mean equatorial-rotation rate of the sunspot groups seems to be lagging that of the equatorial-rotation rate determined from the GONG measurements by one to two years.The amplitude of the latter is very small.The solar-cycle variation in the equatorial-rotation rate of the solar corona closely matches that determined from the sunspot-group data.The variation in the equatorial-rotation rate determined from the Mount Wilson Doppler-velocity data closely resembles the corresponding variation in the equatorial-rotation rate determined from the sunspot-group data that included the values of the abnormal angular motions (> 3 deg per day) of the sunspot groups. Implications of these results are pointed out.
description: 22 pages, 10 figures, accepted by Solar Physics
Low Scale Left-Right Symmetry and Warm Dark Matter
Creators: name: Nemevsek, Miha
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the scenario of dark matter in the minimal left-right symmetric theory at the TeV scale. The only viable candidate is found to be the lightest right-handed neutrino with a mass of keV. To satisfy the dark matter relic abundance, the relic yield is diluted by late decays of the two heavier neutrinos. We point out that the QCD phase transition temperature coincidences with the typical freeze-out temperature governed by right-handed interactions, which helps to alleviate the problem of overproduction. A careful numerical study reveals a narrow window for the mass of the right-handed gauge boson, within the reach of the LHC.
description: Article in proceedings of the CETUP* 2012 workshop in Lead, South Dakota; 10 pages, 5 figures, v2: references added
3He: Does the problem persists?
Creators: name: Guzman-Ramirez, L.
name: Pineda, J. E.
name: Zijlstra, A. A.
name: Stancliffe, R.
name: Karakas, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To understand the chemical evolution of the Galaxy, we need to understand the contribution of PNe in the 3He abundance. 3He abundances have been detected only in a couple of PNe, their abundances are consistent with the standard models, in which 3He is produced in significant quantities by stars of 1-2M_sun. However, for all the other PNe observed to date there have been no detections, therefore only upper limits in their abundance can be calculated. Observations of the 3He+ emission line using the VLA towards the PNe IC 418, NGC 6572 and NGC 7009 were used to obtain upper limits for their 3He abundance. Because the abundance of 3He in HII regions, the ISM and the proto-solar system is much lower than what is predicted, new chemical models were proposed. The resulting evolution of 3He, based on stellar evolution models, can be consistent with the values determined in pre-solar material and the ISM if 96 percent of the population of stars with mass below 2.5M_sun has undergone enhanced 3He depletion. This implies that unless the combined sample of PNe that has been observed so far is very atypical, the solution to the "The 3He Problem" lies elsewhere. However, the results presented here suggest that more observations are needed in order to make a strong conclusion about the stellar evolution models.
description: 6 pages, 2 figures, accepted for publication in the MNRAS
Scale dependence and collinear subtraction terms for Higgs production in gluon fusion at N3LO
Creators: name: Buehler, Stephan
name: Lazopoulos, Achilleas
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The full, explicit, scale dependence of the inclusive N3LO cross section for single Higgs hadroproduction is obtained by calculating the convolutions of collinear splitting kernels with lower-order partonic cross sections. We provide results for all convolutions of splitting kernels and lower-order partonic cross sections to the order in epsilon needed for the full N3LO computation, as well as their expansions around the soft limit. We also discuss the size of the total scale uncertainty at N3LO that can be anticipated with existing information.
description: 27 pages, 8 figure, 1 table, 8 ancillary files. v2: added 4 references, changed labelling of contour plots
Disordered driven coupled cavity arrays: Non-equilibrium stochastic mean-field theory
Creators: name: Kulaitis, Gytis
name: Krüger, Frank
name: Nissen, Felix
name: Keeling, Jonathan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the interplay of disorder with pumping and decay in coupled qubit-cavity arrays, the Jaynes-Cummings-Hubbard model. We find that relatively weak disorder can wash out the bistability present in the clean pumped system, and that moreover, the combination of disorder in on-site energies and decay can lead to effective phase disorder. To explore these questions, we present a non- equilibrium generalisation of Stochastic-Mean-Field theory, providing a simple tool to address such questions. This technique is developed for rather general forms of light-matter coupling, driving, dissipation, and on-site disorder, making it applicable to a wide range of systems.
description: 7 pages, 4 figures
title: Immunologische Grundlagen der HIV-Infektion und -Toleranz bei Kindern und Erwachsenen
Creators: name: Roider, Julia
Publisher: name: Ludwig-Maximilians-Universität München
Year: 2021
Subjects: subject: HIV-gerichtete T-Zellimmunität, therapeutisches HIV-Vakzin, protektives HIV-Vakzin, HIV-spezifische neutralisierende Antikörper, HIV-spezifische nicht-neutralisierende Antikörper, Immunkontrolle, T-follikuläre Helferzellen, T-regulatorische Zellen, zytotoxische T-Zellen, lymphoide Zellen des angeborenen Systems
subject: 600
subject: 610
subject: FOS: Medical and Health Sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Die hier vorgelegte kumulative Habilitationsarbeit besteht aus sieben Originalarbeiten in drei inhaltlich miteinander verknüpften Themenbereichen. Alle drei sind im Bereich der Erforschung der HIV-gerichteten Immunität, Immuntoleranz und Heilungsforschung der HIV-Infektion angesiedelt. Mit den Bioproben von HIV-infizierten Kindern und Erwachsenen, sowie HIV-negativen Kontrollen, wurden im Rahmen translationaler Grundlagenforschung folgende Themenkomplexe bearbeitet: HIV-gerichtete T-Zellimmunität und deren mögliche Verwendung als therapeutisches HIV-Vakzin, HIV-spezifische neutralisierende und nicht-neutralisierende Antikörperantworten, Immunkontrolle der HIV Infektion und deren Korrelate, Einfluss der antiretroviralen Therapie auf klinische und immunologische Parameter.
Quasiparticle band-edge energy and band offsets of monolayer of molybdenum and tungsten chalcogenide
Creators: name: Liang, Yufeng
name: Huang, Shouting
name: Soklaski, Ryan
name: Yang, Li
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the quasiparticle energy of monolayer of molybdenum and tungsten dichalcogenides, MX2 (M=Mo, W; X=S, Se, Te). Beyond calculating bandgaps, we have achieved converged absolute band energies relative to the vacuum level. Compared with the results from other approaches, the GW calculation reveals substantially larger bandgaps and different absolute band energies because of enhanced many-electron effects. Interestingly, our fully-converged quasiparticle energies ratify the band-gap-center approximation, making it a convenient way to estimate quasiparticle energy. The absolute quasiparticle energies and band offsets obtained in this work are important for designing heterojunction devices and chemical catalysts based on monolayer dichalcogenides.