cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supernova matter at subnuclear densities as a resonant Fermi gas: Enhancement of neutrino rates
Creators: name: Bartl, A.
name: Pethick, C. J.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: At low energies nucleon-nucleon interactions are resonant and therefore supernova matter at subnuclear densities has many similarities to atomic gases with interactions dominated by a Feshbach resonance. We calculate the rates of neutrino processes involving nucleon-nucleon collisions and show that these are enhanced in mixtures of neutrons and protons at subnuclear densities due to the large scattering lengths. As a result, the rate for neutrino pair bremsstrahlung and absorption is significantly larger below 10^{13} g cm^{-3} compared to rates used in supernova simulations.
description: 5 pages, 4 figures, published version, NORDITA-2014-28
Additional file 2 of Characterising illness stages and recovery trajectories of eating disorders in young people via remote measurement technology (STORY): a multi-centre prospective cohort study protocol
Creators: name: Kuehne, Carina
name: Phillips, Matthew D.
name: Moody, Sarah
name: Bryson, Callum
name: Campbell, Iain C.
name: Conde, Pauline
name: Cummins, Nicholas
name: Desrivières, Sylvane
name: Dineley, Judith
name: Dobson, Richard
name: Douglas, Daire
name: Folarin, Amos
name: Gallop, Lucy
name: Hemmings, Amelia
name: İnce, Başak
name: Mason, Luke
name: Rashid, Zulqarnain
name: Bromell, Alice
name: Sims, Christopher
name: Allen, Karina
name: Bailie, Chantal
name: Bains, Parveen
name: Basher, Mike
name: Battisti, Francesca
name: Baudinet, Julian
name: Bristow, Katherine
name: Dawson, Nicola
name: Dodd, Lizzie
name: Frater, Victoria
name: Freudenthal, Robert
name: Gripton, Beth
name: Kan, Carol
name: Khor, Joel W. T.
name: Kotze, Nicus
name: Laverack, Stuart
name: Martin, Lee
name: Maxwell, Sarah
name: McDonald, Sarah
name: McKnight, Delysia
name: McKay, Ruairidh
name: Merrin, Jessica
name: Nash, Mel
name: Nicholls, Dasha
name: Palmer, Shirlie
name: Pearce, Samantha
name: Roberts, Catherine
name: Serpell, Lucy
name: Severs, Emilia
name: Simic, Mima
name: Staton, Amelia
name: Westaway, Sian
name: Sharpe, Helen
name: Schmidt, Ulrike
name: Bartel, Heike
name: French, Tara
name: Kelly, Jonathan
name: Micali, Nadia
name: Raman, Sneha
name: Treasure, Janet
name: Malik, Umairah
name: Rabelo-da-Ponte, Diego
name: Stephens, Fiona
name: Opitz, Tine
name: Trompeter, Nora
name: Wilkins, Jessica
name: Parnell, Tamsin
name: Abbas, Ruby
name: Davis, Grace
name: Eadie, Cameron
name: Gracie, Lara
name: Heslop, Beck
name: McKenzie, Katie
name: Odubanjo, Eniola
name: Sims, Chris
name: Street, Tallulah
name: Tavares-Semedo, Andreia
name: Wilkinson, Eleanor
name: Zocek, Lucy
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 2. Experience Sampling Methodology (ESM) assessment scheme.
The Photospheric Poynting Flux and Coronal Heating
Creators: name: Welsch, B. T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Some models of coronal heating suppose that convective motions at the photosphere shuffle the footpoints of coronal magnetic fields and thereby inject sufficient magnetic energy upward to account for observed coronal and chromospheric energy losses in active regions. Using high-resolution observations of plage magnetic fields made with the Solar Optical Telescope aboard the Hinode satellite, we investigate this idea by estimating the upward transport of magnetic energy --- the vertical Poynting flux, S_z --- across the photosphere in a plage region. To do so, we combine: (i) estimates of photospheric horizontal velocities, v_h, determined by local correlation tracking applied to a sequence of line-of-sight magnetic field maps from the Narrowband Filter Imager, with (ii) a vector magnetic field measurement from the SpectroPolarimeter. Plage fields are ideal observational targets for estimating energy injection by convection, because they are: (i) strong enough to be measured with relatively small uncertainties; (ii) not so strong that convection is heavily suppressed (as within umbrae); and (iii) unipolar, so S_z in plage is not influenced by mixed-polarity processes (e.g., flux emergence) unrelated to heating in stable, active-region fields. In this plage region, we found that the average S_z varied in space, but was positive (upward) and sufficient to explain coronal heating, with values near (5 +/- 1) x 10^7 erg/cm^2/s. We find the energy input per unit magnetic flux to be on the order of 10^5 erg/s/Mx. A comparison of intensity in a Ca II image co-registered with the this plage shows stronger spatial correlations with both total field, B, and unsigned vertical field, |B_z|, than either S_z or horizontal field, B_h. The observed Ca II brightness enhancement, however, probably contains a strong contribution from a near-photosphere hot-wall effect unrelated to atmospheric heating.
description: 30 pages, 11 figures, accepted by Pub. Astron. Soc. Japan
A quantum Langevin model for non-equilibrium condensation
Creators: name: Chiocchetta, Alessio
name: Carusotto, Iacopo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a quantum model for non-equilibrium Bose-Einstein condensation of photons and polaritons in planar microcavity devices. The model builds upon laser theory and includes the spatial dynamics of the cavity field, a saturation mechanism and some frequency-dependence of the gain: quantum Langevin equations are written for a cavity field coupled to a continuous distribution of externally pumped two-level emitters with a well-defined frequency. As a an example of application, the method is used to study the linearised quantum fluctuations around a steady-state condensed state. In the good-cavity regime, an effective equation for the cavity field only is proposed in terms of a stochastic Gross-Pitaevskii equation. Perspectives in view of a full quantum simulation of the non-equilibrium condensation process are finally sketched.
Holographic Rényi entropy for CFT with $W$ symmetry
Creators: name: Chen, Bin
name: Long, Jiang
name: Zhang, Jia-ju
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we investigate the holographic Rényi entropy of two disjoint intervals on complex plane with small cross ratio $x$ for conformal field theory with $W$ symmetry in the ground state, which could be dual to a higher spin AdS$_3$ gravity. We focus on the cases of $W_3$ and $W_4$ symmetries. In order to see the nontrivial contributions from the $W$ fields, we calculate the Rényi entropy in the expansion of $x$ to order $x^8$ in both the gravity and the CFT sides. In the gravity side the classical contributions to the entanglement entropy is still given by the Ryu-Takayanagi area formula under the reasonable assumption, while the 1-loop quantum corrections have to take into account of the contributions not only from massless gravitons, but also from massless higher spin fields. In the CFT side we still use the operator product expansion of twist operators in the small interval limit, but now we need to consider the quasiprimary fields constructed from $W$ fields, besides the ones from Virasoro Verma module. In the large central charge limit, we obtain the classical, 1-loop, 2-loop, and 3-loop parts of the Rényi entropy. The classical and 1-loop results in the gravity and the CFT sides are in exact match. This confirms the higher spin gravity/CFT correspondence, and also supports the holographic computation of Rényi entanglement entropy, including the quantum correction, in both the AdS$_3$ gravity and the higher spin AdS$_3$ gravity.
description: 32 pages, published version
The complex geomety of a domain related to $μ$-synthesis
Creators: name: Agler, J.
name: Lykova, Z. A.
name: Young, N. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32F45, 30E05, 93B36, 93B50

description: We describe the basic complex geometry and function theory of the {\em pentablock} $\mathcal{P}$, which is the bounded domain in $\mathbb{C}^3$ given by \[ \mathcal{P}= \{(a_{21}, \mathrm{tr} A, \det A): A= \begin{bmatrix} a_{ij}\end{bmatrix}_{i,j=1}^2 \in \mathbb{B}\} \] where $\mathbb{B}$ denotes the open unit ball in the space of $2\times 2$ complex matrices. We prove several characterizations of the domain. We describe its distinguished boundary and exhibit a $4$-parameter group of automorphisms of $\mathcal{P}$. We show that $\mathcal{P}$ is intimately connected with the problem of $μ$-synthesis for a certain cost function $μ$ on the space of $2\times 2$ matrices defined in connection with robust stabilization by control engineers. We demonstrate connections between the function theories of $\mathcal{P}$ and $\mathbb{B}$. We show that $\mathcal{P}$ is polynomially convex and starlike.
description: 36 pages, 2 figures. This version contains corrections of some inaccuracies and an expanded argument for Proposition 12.4
Additional file 2 of Characterising illness stages and recovery trajectories of eating disorders in young people via remote measurement technology (STORY): a multi-centre prospective cohort study protocol
Creators: name: Kuehne, Carina
name: Phillips, Matthew D.
name: Moody, Sarah
name: Bryson, Callum
name: Campbell, Iain C.
name: Conde, Pauline
name: Cummins, Nicholas
name: Desrivières, Sylvane
name: Dineley, Judith
name: Dobson, Richard
name: Douglas, Daire
name: Folarin, Amos
name: Gallop, Lucy
name: Hemmings, Amelia
name: İnce, Başak
name: Mason, Luke
name: Rashid, Zulqarnain
name: Bromell, Alice
name: Sims, Christopher
name: Allen, Karina
name: Bailie, Chantal
name: Bains, Parveen
name: Basher, Mike
name: Battisti, Francesca
name: Baudinet, Julian
name: Bristow, Katherine
name: Dawson, Nicola
name: Dodd, Lizzie
name: Frater, Victoria
name: Freudenthal, Robert
name: Gripton, Beth
name: Kan, Carol
name: Khor, Joel W. T.
name: Kotze, Nicus
name: Laverack, Stuart
name: Martin, Lee
name: Maxwell, Sarah
name: McDonald, Sarah
name: McKnight, Delysia
name: McKay, Ruairidh
name: Merrin, Jessica
name: Nash, Mel
name: Nicholls, Dasha
name: Palmer, Shirlie
name: Pearce, Samantha
name: Roberts, Catherine
name: Serpell, Lucy
name: Severs, Emilia
name: Simic, Mima
name: Staton, Amelia
name: Westaway, Sian
name: Sharpe, Helen
name: Schmidt, Ulrike
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 2. Experience Sampling Methodology (ESM) assessment scheme.
Science opportunities with solar sailing smallsats
Creators: name: Turyshev, Slava G.
name: Garber, Darren
name: Friedman, Louis D.
name: Hein, Andreas M.
name: Barnes, Nathan
name: Batygin, Konstantin
name: Brin, G. David
name: Brown, Michael E.
name: Cronin, Leroy
name: Davoyan, Artur
name: Dubill, Amber
name: Eubanks, T. Marshall
name: Gibson, Sarah
name: Hassler, Donald M.
name: Izenberg, Noam R.
name: Kervella, Pierre
name: Mauskopf, Philip D.
name: Murphy, Neil
name: Nutter, Andrew
name: Porco, Carolyn
name: Riccobono, Dario
name: Schalkwyk, James
name: Stevenson, Kevin B.
name: Sykes, Mark V.
name: Sultana, Mahmooda
name: Toth, Viktor T.
name: Velli, Marco
name: Worden, S. Pete
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Recently, we witnessed how the synergy of small satellite technology and solar sailing propulsion enables new missions. Together, small satellites with lightweight instruments and solar sails offer affordable access to deep regions of the solar system, also making it possible to realize hard-to-reach trajectories that are not constrained to the ecliptic plane. Combining these two technologies can drastically reduce travel times within the solar system, while delivering robust science. With solar sailing propulsion capable of reaching the velocities of ~5-10 AU/yr, missions using a rideshare launch may reach the Jovian system in two years, Saturn in three. The same technologies could allow reaching solar polar orbits in less than two years. Fast, cost-effective, and maneuverable sailcraft that may travel outside the ecliptic plane open new opportunities for affordable solar system exploration, with great promise for heliophysics, planetary science, and astrophysics. Such missions could be modularized to reach different destinations with different sets of instruments. Benefiting from this progress, we present the "Sundiver" concept, offering novel possibilities for the science community. We discuss some of the key technologies, the current design of the Sundiver sailcraft vehicle and innovative instruments, along with unique science opportunities that these technologies enable, especially as this exploration paradigm evolves. We formulate policy recommendations to allow national space agencies, industry, and other stakeholders to establish a strong scientific, programmatic, and commercial focus, enrich and deepen the space enterprise and broaden its advocacy base by including the Sundiver paradigm as a part of broader space exploration efforts.
description: 35 pages, 12 figures, 3 tables
Oxygen-linked CO2 binding to isolated beta subunits of human hemoglobin
Creators: name: Bauer, Christian
name: Kurtz, Armin
Publisher: name: Universität Regensburg
Year: 1977
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Adult
subject: Carbamates/metabolism
subject: Carbon Dioxide/metabolism
subject: Chemical Phenomena
subject: Chemistry
subject: Hemoglobin A/metabolism
subject: Hemoglobins/metabolism
subject: Humans
subject: Hydrogen-Ion Concentration
subject: Macromolecular Substances
subject: Myoglobin/metabolism
subject: Oxygen
subject: Partial Pressure
subject: Protein Binding
subject: Pyridoxal Phosphate
subject: Sulfhydryl Compounds

description: It is known that most of the oxygen-linked carbamate which is formed in normal adult human hemoglobin (Hb A) is confined to the beta subunits rather than to the alpha subunits. In order to find out if similar differences exist in the isolated protomers of Hb A we have measured the effect of various pressures of carbon dioxide (pCO2) on the oxygen affinity in the following heme pigments: isolated alpha and beta subunits with free --SH groups (alphaSH, betaSH), mercurated beta subunits (betaPMB), myoglobin (Mb), and betaSH/PLP in which the terminal alpha-amino group of betaSH was irreversibly blocked with pyridoxal phosphate (PLP). Similar measurements were done on Hb A and the fraction of oxygen-linked carbamate calculated from the effect of pCO2 (at constant pH) on the oxygen half-saturation pressure (p50). A distinct influence of CO2 on p50 was observed in betaSH which was absent in betaSH/PLP and thus indicates that the terminal alpha-amino group mediates the oxygen-linked binding of CO2 in betaSH as it does in the beta subunits of Hb A. However, the fraction of oxygen-linked carbamate was much less dependent on pH and pCO2 in betaSH than in Hb A. Neither alphaSH, betaPMB, or Mb, all of which are known to exist largely or wholly as monomers but have free terminal alpha-amino groups, showed a shift of p50 upon addition of CO2. As both betaSH and betaSH/PLP were shown to be tetrameric molecules, we conclude from this study that homotetramers composed of isolated beta subunits do exhibit a reciprocal interaction between the binding of O2 and CO2.
Basis properties of the p,q-sine functions
Creators: name: Boulton, Lyonell
name: Lord, Gabriel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We improve the currently known thresholds for basisness of the family of periodically dilated p,q-sine functions. Our findings rely on a Beurling decomposition of the corresponding change of coordinates in terms of shift operators of infinite multiplicity. We also determine refined bounds on the Riesz constant associated to this family. These results seal mathematical gaps in the existing literature on the subject.
description: 28 pages, 5 figures, computer codes included in appendix
A new candidate for the regulation of erythropoiesis. Insulin-like growth factor I
Creators: name: Kurtz, Armin
name: Jelkmann, W.
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1982
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Biological Assay
subject: Bone Marrow/physiology
subject: Erythropoiesis/drug effects
subject: Erythropoietin/pharmacology
subject: Female
subject: Fetus
subject: Hematopoietic Stem Cells/physiology
subject: Humans
subject: Insulin/pharmacology
subject: Liver/physiology
subject: Mice
subject: Mice, Inbred Strains
subject: Pregnancy
subject: Somatomedins/pharmacology

description: The effect of pure human insulin-like growth factor I (IGF I) on the colony formation of late stage erythroid precursor cells (CFU-e) from fetal mouse liver and adult bone marrow was studied in a serum-free culture system. We found that IGF I in physiological concentrations stimulated erythroid colony formation. The combined effect of IGF I and erythropoietin was smaller than the sum of their single effects. The number of colonies induced by IGF I was linearly dependent on the number of plated cells. Our results indicate that IGF I is the first clearly defined mitogen that stimulates the late stages of erythroid differentiation independently of erythropoietin.
Neutron noise-based core monitoring for identifying and characterizing anomalies and their root causes in operating reactors
Creators: name: Demazière, Christophe
Publisher: name: Zenodo
Year: 2017

description: Overview of neutron noise-based core monitoring for identifying and characterizing anomalies and their root causes in operating reactors.
description: The CORTEX project received funding from the Euratom Research and Training Programme 2014-2018 under grant agreement No 754316.
Additional file 1 of Characterising illness stages and recovery trajectories of eating disorders in young people via remote measurement technology (STORY): a multi-centre prospective cohort study protocol
Creators: name: Kuehne, Carina
name: Phillips, Matthew D.
name: Moody, Sarah
name: Bryson, Callum
name: Campbell, Iain C.
name: Conde, Pauline
name: Cummins, Nicholas
name: Desrivières, Sylvane
name: Dineley, Judith
name: Dobson, Richard
name: Douglas, Daire
name: Folarin, Amos
name: Gallop, Lucy
name: Hemmings, Amelia
name: İnce, Başak
name: Mason, Luke
name: Rashid, Zulqarnain
name: Bromell, Alice
name: Sims, Christopher
name: Allen, Karina
name: Bailie, Chantal
name: Bains, Parveen
name: Basher, Mike
name: Battisti, Francesca
name: Baudinet, Julian
name: Bristow, Katherine
name: Dawson, Nicola
name: Dodd, Lizzie
name: Frater, Victoria
name: Freudenthal, Robert
name: Gripton, Beth
name: Kan, Carol
name: Khor, Joel W. T.
name: Kotze, Nicus
name: Laverack, Stuart
name: Martin, Lee
name: Maxwell, Sarah
name: McDonald, Sarah
name: McKnight, Delysia
name: McKay, Ruairidh
name: Merrin, Jessica
name: Nash, Mel
name: Nicholls, Dasha
name: Palmer, Shirlie
name: Pearce, Samantha
name: Roberts, Catherine
name: Serpell, Lucy
name: Severs, Emilia
name: Simic, Mima
name: Staton, Amelia
name: Westaway, Sian
name: Sharpe, Helen
name: Schmidt, Ulrike
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 1. RMT Speech Task Instructions.
Effects of fasting on the hypoxia-induced erythropoietin production in rats
Creators: name: Jelkmann, W.
name: Kurtz, Armin
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1983
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Anoxia/metabolism
subject: Body Weight
subject: Eating
subject: Erythropoietin/blood
subject: Fasting
subject: Male
subject: Rats/physiology
subject: Rats, Inbred Strains

description: In order to test the hypothesis that the early cessation of erythropoietin (Ep) production during hypobaric hypoxia is induced by lowered food intake, we have compared the plasma Ep titer of rats after exposure to continuous hypoxia (42.6 kPa = 7000 m altitude) for 4 days with that in fed or fasted rats after exposure to discontinuous hypoxia. We found that plasma Ep was rather low after 4 days of continuous hypoxia. However, the Ep titer significantly rose again, when rats were maintained normoxic for 18 h and then exposed to repeated hypoxia for 6 h. Because this was also found in rats which were deprived of food during the normoxic interval and the second hypoxic period, we conclude that the fall of the Ep titer during continuous hypoxia is not primarily due to reduced food intake. In addition, our findings show that fasting per se lowers the Ep-response to hypoxia in normal rats but not exhypoxic rats.
description: Rechteverwertung 1966-1994
Phase Separation and Emergent Structures in an Active Nematic
Creators: name: Putzig, Elias
name: Baskaran, Aparna
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a phenomenological continuum model for an active nematic fluid and show a universal, model independent, instability which renders the homogeneous nematic state unstable to order fluctuations. Using numerical and analytic tools we show that, for low energy excitations in the vicinity of a critical point, this instability leads to a phase separation in which the ordered regions form bands with the direction of nematic order being perpendicular to the direction of density gradient. We argue that this mechanism of phase separation, which we term self-regulation, is a universal feature of active fluids.
The Morphology and Dynamics of Relativistic Jets with Relativistic Equation of State
Creators: name: Joshi, Raj Kishor
name: Chattopadhyay, Indranil
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the effect of plasma composition on the dynamics and morphology of the relativistic astrophysical jets. Our work is based on a relativistic total variation diminishing (TVD) simulation code. We use a relativistic equation of state in the simulation code which accounts for the thermodynamics of a multispecies plasma which is a mixture of electrons, positrons, and protons. To study the effect of plasma composition we consider various jet models. These models are characterized by the same injection parameters, same jet kinetic luminosity, and the same Mach numbers. The evolution of these models shows that the plasma composition affects the jet head propagation speed, the structure of the jet head, and the morphology despite fixing the initial parameters. We conclude that the electron-positron jets are the slowest and show more pronounced turbulent structures in comparison to other plasma compositions. The area and locations of the hot-spots also depend on the composition of jet plasma. Our results also show that boosting mechanisms are also an important aspect of multi-dimensional simulations which are also influenced by the change in composition.
description: Accepted for publication in ApJ, 13 pages and 9 figures
Outwards pointing hysteresis operators and asymptotic behaviour of evolution equations
Creators: name: Klein, Olaf
name: Krejčí, Pavel
Publisher: name: Weierstrass Institute
Year: 2002
Subjects: subject: hysteresis operators
subject: Prandtl-Ishlinskii operator
subject: asymptotic behaviour
subject: visco-elasto-plasticity
subject: 34C55
subject: 35B40
subject: 74N30
subject: 47J40
subject: 35K60
subject: 74K05

description: The paper deals with the long-time behaviour of evolution systems described by ODEs and PDEs with hysteresis operators. The analysis is based on two concepts. The first one is the outward pointing property of the involved hysteresis operators which implies uniform a priori bounds for solutions, the second one is related to the hysteresis modelling itself and consists in introducing a class of thermodynamically consistent generalized Prandtl-Ishlinskii operators as a model for a nonlinear elastoplastic material law. A stability result for solutions in one-dimensional visco-elasto-plasticity is derived as an illustration of the theory.
Activation of phospholipase C and prostaglandin synthesis by [arginine]vasopressin in cultures
Creators: name: Pfeilschifter, J.
name: Kurtz, Armin
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1984
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Arachidonic Acid
subject: Arachidonic Acids/metabolism
subject: Arginine Vasopressin/pharmacology
subject: Cells, Cultured
subject: Dinoprostone
subject: Glomerular Mesangium/metabolism
subject: Indomethacin/pharmacology
subject: Phospholipases/metabolism
subject: Prostaglandins E/biosynthesis
subject: Rats
subject: Time Factors
subject: Type C Phospholipases/metabolism

description: [Arginine]vasopressin (AVP) stimulates maximal prostaglandin E2 production in cultured rat renal mesangial cells within 2 min. As early as 10s after addition of AVP (10(-6)M) a significant loss of radioactivity from phosphatidylinositol 4,5-bisphosphate but not from phosphatidylinositol 4-phosphate and phosphatidylinositol was observed in cells prelabelled with 32Pi. Cells labelled with [14C]arachidonic acid showed an increase of label in 1,2-diacylglycerol after 15 s and in phosphatidic acid after 30 s upon stimulation with AVP. Pretreatment of the cells with indomethacin (10(-5)M) did not abolish the effect of AVP on the increased labelling of phosphatidic acid.
Supplementary document for Image-free active autofocusing with dual modulation and its application to autofocusing Fourier single-pixel imaging - 6325405.pdf
Creators: name: qi, shaoting
name: Deng, Zilin
name: Qi, Pan
name: Liao, Jun
name: Zhang, Zibang
name: Zheng, Guoan
name: Zhong, Jingang
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: subject: 20501 Classical and Physical Optics
subject: FOS: Physical sciences

description: This document includes the approaches to determining the spatial frequency of the largest Fourier coefficient in the first-order component. The document also includes the demonstration of the necessity of static modulation for the proposed method.
Neutrino Masses and Conformal Electro-Weak Symmetry Breaking
Creators: name: Lindner, Manfred
name: Schmidt, Steffen
name: Smirnov, Juri
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Dimensional transmutation in classically conformal invariant theories may explain the electro-weak scale and the fact that so far nothing but the Standard Model (SM) particles have been observed. We discuss in this paper implications of this type of symmetry breaking for neutrino mass generation.
description: 23 pages, 4 figures (one new figure), journal version
Inhibition of renin secretion by platelet activating factor (acetylglyceryl ether phosphorylcholine) in cultured rat renal juxtaglomerular cells
Creators: name: Pfeilschifter, J.
name: Kurtz, Armin
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1985
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Calcium/metabolism
subject: Cells, Cultured
subject: Diglycerides/metabolism
subject: Juxtaglomerular Apparatus/secretion
subject: Phosphatidylinositol 4,5-Diphosphate
subject: Phosphatidylinositols/metabolism
subject: Platelet Activating Factor/physiology
subject: Rats
subject: Renin/secretion
subject: Type C Phospholipases/metabolism
subject: Verapamil/pharmacology

description: Acetylglyceryl ether phosphorylcholine (AGEPC), commonly known as platelet activating factor, was found to strongly inhibit renin secretion in cultures rich in juxtaglomerular cells. This inhibitory action of AGEPC was accompanied by an enhanced calcium permeability of the cell membrane as evaluated from measurements of the uptake of 45Ca. Simultaneous addition of the calcium channel blocker verapamil abolished the effects of AGEPC on both renin secretion and calcium permeability. Furthermore, addition of AGEPC to the cell cultures led to a decrease of 32P-labeled phosphatidylinositol 4,5-bisphosphate and to an increase in 3H-labeled diacylglycerol, indicating an activation of phospholipase C by AGEPC.
Generalised Geometrical CP Violation in a $T^{\prime}$ Lepton Flavour Model
Creators: name: Girardi, Ivan
name: Meroni, Aurora
name: Petcov, S. T.
name: Spinrath, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyse the interplay of generalised CP transformations and the non-Abelian discrete group $T^{\prime}$ and use the semi-direct product $G_f= T^{\prime}\rtimes H_{\text{CP}}$, as family symmetry acting in the lepton sector. The family symmetry is shown to be spontaneously broken in a geometrical manner. In the resulting flavour model, naturally small Majorana neutrino masses for the light active neutrinos are obtained through the type I see-saw mechanism. The known masses of the charged leptons, lepton mixing angles and the two neutrino mass squared differences are reproduced by the model with a good accuracy. The model allows for two neutrino mass spectra with normal ordering (NO) and one with inverted ordering (IO). For each of the three spectra the absolute scale of neutrino masses is predicted with relatively small uncertainty. The value of the Dirac CP violation (CPV) phase $δ$ in the lepton mixing matrix is predicted to be $δ\cong π/2~{\rm or}~ 3π/2$. Thus, the CP violating effects in neutrino oscillations are predicted to be maximal (given the values of the neutrino mixing angles) and experimentally observable. We present also predictions for the sum of the neutrino masses, for the Majorana CPV phases and for the effective Majorana mass in neutrinoless double beta decay. The predictions of the model can be tested in a variety of ongoing and future planned neutrino experiments.
description: 39 pages, 5 figures, 9 tables; Results unchanged; two typos in eqs. (3.70) and (3.71) corrected
Holographic MIMO Communications exploiting the Orbital Angular Momentum
Creators: name: Torcolacci, Giulia
name: Decarli, Nicolò
name: Dardari, Davide
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This study delves into the potential of harnessing the orbital angular momentum (OAM) property of electromagnetic waves in near-field and line-of-sight scenarios by utilizing large intelligent surfaces, in the context of holographic multiple-input multiple-output (MIMO) communications. The paper starts by characterizing OAM-based communications and investigating the connection between OAM-carrying waves and optimum communication modes recently analyzed for communicating with smart surfaces. Subsequently, it proposes implementable strategies for generating and detecting OAM-based communication signals using intelligent surfaces and optimization methods that leverage focusing techniques. Then, the performance of these strategies is quantitatively evaluated through simulations. The numerical results show that OAM waves while constituting a viable and more practical alternative to optimum communication modes are sub-optimal in terms of achievable capacity.
description: 34 pages, 9 figures, 2 tables. Part of this article was presented at IEEE GLOBECOM 2022
title: Unsafe In My Own Home: A Sociolegal Study of Violence against Women in India's Private Sphere
Creators: name: Ebenezer, Hazel Lincy
Publisher: name: University of Kent
Year: 2023

description: Given the influence of the social and legal public-private divide on the Indian legal framework, this research seeks to understand how current legal structures maintain and reinforce forms of violence against women in India's private sphere. In tackling this question, the research argument begins by observing that the Indian legal system does not sufficiently address acts of violence committed in the private social sphere. The manifestations and consequences of this insufficiency is studied in two different scenarios: marital rape, as a form of violence where no law exists, and dowry death, as a form of violence where the existing laws prove inadequate. Through a postcolonial feminist lens, the research argues that the legal insufficiency for both marital rape and dowry death can be explained, at least in part, by understanding the patriarchal and colonial power dynamics that create and maintain social scripts and perceptions surrounding gender roles, marriage, and violence in the private sphere. In turn, these private sphere narratives influence the creation, implementation, and reform of law in the public sphere as well. These dynamics are showcased in detail through the examination of marital rape and dowry death in India, and the social scripts and perceptions surrounding these forms of violence. The argument concludes by commenting on the consequences of social narratives in the private sphere on legal structures in the public which, in turn, continues to both maintain and reinforce marital rape, dowry death, and other private forms of violence against women. This argument allows the research to create an understanding of the patriarchal and colonial influence of the legal and social public-private divide, as an important first step towards a structural transformation of the Indian legal framework surrounding violence against women in India's private sphere.
Extraction of erythropoietin from isolated renal glomeruli of hypoxic rats
Creators: name: Jelkmann, W.
name: Kurtz, Armin
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1983
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Anoxia/metabolism
subject: Erythropoietin/urine
subject: Female
subject: Fetus
subject: Humans
subject: Kidney Glomerulus/analysis
subject: Liver
subject: Male
subject: Mice
subject: Mice, Inbred Strains
subject: Molecular Weight
subject: Pregnancy
subject: Rats
subject: Rats, Inbred Strains
subject: Receptors, Mitogen/analysis
subject: Time Factors

description: We investigated whether erythropoietin (Ep) can be extracted from renal glomeruli of hypoxic rats. Hypoxia was induced in a hypobaric chamber at 0.42 atmospheres for usually 6 h. Glomeruli were isolated with a sieving technique from kidneys that were flushed free of blood. Ep activities in glomeruli homogenates were determined in the fetal mouse liver cell assay and in the hypoxia exposed mouse assay. We found in vitro erythropoietic activity of glomerular extracts, which increased about 25-fold during hypoxia. Incubation of the extracts with anti-Ep serum abolished the activity. Its binding characteristics on Wheat germ lectin. Ricinus communis lectin and DEAE-cellulose suggested that glomeruli contained Ep precursor(s) that lacked terminal sugar residues. Such an incomplete carbohydrate portion seems also compatible with the finding that glomerular extracts did not stimulate erythropoiesis in hypoxia exposed mice.
Differentiable programming tensor networks for Kitaev magnets
Creators: name: Zhang, Xing-Yu
name: Liang, Shuang
name: Liao, Hai-Jun
name: Li, Wei
name: Wang, Lei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a general computational framework to investigate ground state properties of quantum spin models on infinite two-dimensional lattices using automatic differentiation-based gradient optimization of infinite projected entangled-pair states. The approach exploits the variational uniform matrix product states to contract infinite tensor networks with unit-cell structure and incorporates automatic differentiation to optimize the local tensors. We applied this framework to the Kitaev-type model, which involves complex interactions and competing ground states. To evaluate the accuracy of this method, we compared the results with exact solutions for the Kitaev model and found that it has a better agreement for various observables compared to previous tensor network calculations based on imaginary-time projection. Additionally, by finding out the ground state with lower variational energy compared to previous studies, we provided convincing evidence for the existence of nematic paramagnetic phases and 18-site configuration in the phase diagram of the $K$-$Γ$ model. Furthermore, in the case of the realistic $K$-$J$-$Γ$-$Γ'$ model for the Kitaev material $α$-RuCl$_3$, we discovered a non-colinear zigzag ground state. Lastly, we also find that the strength of the critical out-of-plane magnetic field that suppresses such a zigzag state has a lower transition field value than the previous finite-cylinder calculations. The framework is versatile and will be useful for a quick scan of phase diagrams for a broad class of quantum spin models.
Enhanced optical properties and the origin of carriers transport in BiFeO$_3$/TiO$_2$ heterostructures with 109$^{\circ}$ domain walls
Creators: name: Feng, Hong-Jian
name: Duan, Bi
name: Tian, Jinshou
name: Guo, Xiaohui
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The absorption performance in the BiFeO$_3$/TiO$_2$ bilayer film prepared by simple sol-gel method has been significantly improved in the ultraviolet and visible-light region, comparing with BiFeO$_3$ and TiO$_2$ films. Terahertz-radiation emission presents a direct evidence of photon-induced electrons and holes transport in the heterostructures. First-principles calculations agree well with the experiments and present an unambiguous explanation of charge carriers transport and enhanced absorbance which is induced by the large electrostatic potential drop in the interface of heterostructures with the 109$^{\circ}$ domain walls. This work provides a promising candidate toward designing novel photovoltaic BiFeO$_3$-based heterostructures with high efficiencies.
description: This paper has been withdrawn by the authors due to a crucial error
Renal mesangial cell cultures as a model for study of erythropoietin production
Creators: name: Kurtz, Armin
name: Jelkmann, W.
name: Sinowatz, F.
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1983
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Cells, Cultured
subject: Erythropoietin/biosynthesis
subject: Kidney Glomerulus/ultrastructure
subject: Macrophage-1 Antigen
subject: Microscopy, Electron
subject: Oxygen
subject: Partial Pressure
subject: Rats
subject: Receptors, Complement/analysis
subject: Receptors, Fc/analysis

description: Mesangial cells derived from isolated glomeruli of rat kidney were grown as homogeneous cell lines in culture. They released, into the culture medium, erythropoietin that had free terminal galactosyl residues and was therefore not active in vivo. The production of erythropoietin by these cells was significantly enhanced by either lowering the PO2 in the incubation atmosphere or by adding cobalt chloride to the culture medium. Therefore, mesangial cells in culture may be considered as an in vitro system in which the regulation of erythropoietin production can be studied under well-defined conditions.
Hypoxia enhances prostaglandin synthesis in renal mesangial cell cultures
Creators: name: Jelkmann, W.
name: Kurtz, Armin
name: Förstermann, U.
name: Pfeilschifter, J.
name: Bauer, Christian
Publisher: name: Universität Regensburg
Year: 1985
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: 6-Ketoprostaglandin F1 alpha/biosynthesis
subject: Animals
subject: Anoxia/metabolism
subject: Culture Techniques
subject: Dinoprost
subject: Dinoprostone
subject: Kidney Glomerulus/metabolism
subject: Male
subject: Prostaglandins/biosynthesis
subject: Prostaglandins E/biosynthesis
subject: Prostaglandins F/biosynthesis
subject: Rats

description: In view of recent findings which suggest that renal prostaglandins mediate the effect of hypoxia on erythropoietin production, we have studied whether hypoxia is a stimulus for in vitro prostaglandin synthesis. Studies were carried out in rat renal mesangial cell cultures which produce erythropoietin in an oxygen-dependent manner. Production rates of PGE2 and in specified samples also of 6-keto-PGF1 alpha, as a measure of PGI2, and PGF2 alpha were determined by radioimmunoassay after incubation at either 20% O2 (normoxic) or 2% O2 (hypoxic) in gas permeable dishes for 24 hrs. Considerable variation in PGE2 production was noted among independent cell lines. PGE2 production appeared to be inversely correlated to the cellular density of the cultures. In addition, PGE2 production was enhanced in hypoxic cell cultures. The mean increase was 50 to 60%. PGF2 alpha and 6-keto-PGF1 alpha increased by about the same rate. These results indicate that hypoxia is a stimulus for in vitro prostaglandin production.
The shear modulus of glasses: results from the full replica symmetry breaking solution
Creators: name: Yoshino, Hajime
name: Zamponi, Francesco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We compute the shear modulus of amorphous hard and soft spheres, using the exact solution in infinite spatial dimensions that has been developed recently. We characterize the behavior of this observable in the whole phase diagram, and in particular around the glass and jamming transitions. Our results are consistent with other theoretical approaches, that are unified within this general picture, and they are also consistent with numerical and experimental results. Furthermore, we discuss some properties of the out-of-equilibrium dynamics after a deep quench close to the jamming transition, and we show that a combined measure of the shear modulus and of the mean square displacement allows one to probe experimentally the complex structure of phase space predicted by the full replica symmetry breaking solution.
description: 18 pages, 2 figures; final version, a few additional typos have been fixed
North Korean migrants in China
Creators: name: Park, Hyoungah
Publisher: name: No Publisher Supplied
Year: 2018

description: This study investigates the smuggling and trafficking (e.g. forced marriage, sex trafficking, and labor exploitation) of North Korean Migrants in China (NKMCs). It seeks to answer the following questions: First, how should we define the status of NKMCs (e.g. illegal economic migrant, refugee, or trafficking victim)? Second, are the NKMCs victimized? If any, what are the contexts and factors that contribute to such victimization, and how? Further, what are the characteristics of the victims, smugglers, and traffickers? Finally, what are the contributing factors and possible policy implications to prevent the victimization of NKMCs? For this, one-on-one, face-to-face in-depth interviews with 58 NKMCs (47 women and 11 men) currently living in South Korea were conducted. Study participants were recruited through the purposive snowball sampling method. Interviews were conducted using a standardized questionnaire. This study suggests that 37 NKMCs (64%) should be classified as trafficking victims of forced marriage, commercial sex, or labor exploitation. There were 34 cases of forced marriage, 10 cases of sex trafficking, and 3 cases of labor exploitation among the 58 NKMCs. The most common pattern (22 cases, 59%) of trafficking victimization was being deceived by traffickers in North Korea, crossing the border with traffickers, and being victimized by forced marriage. This study suggests that high demand for marriageable women in China, vulnerabilities of victims due to fear of deportation, and lack of guardianship owing to the Chinese government’s indifference contributed to the trafficking victimization of NKMCs.In sum, this study provides a general picture of the smuggling and trafficking of NKMCs. It also suggests the adoption of a criminal justice approach rather than a human rights perspective to the understanding of NKMCs’ victimization. Routine activity theory was adopted to analyze the contributing factors to the victimization of NKMCs. Finally, this study suggests the Chinese government should do more to protect NKMC trafficking victims.
Active-feedback quantum control of an integrated low-frequency mechanical resonator
Creators: name: Guo, Jingkun
name: Chang, Jin
name: Yao, Xiong
name: Gröblacher, Simon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Preparing a massive mechanical resonator in a state with quantum limited motional energy provides a promising platform for studying fundamental physics with macroscopic systems and allows to realize a variety of applications, including precise sensing. While several demonstrations of such ground-state cooled systems have been achieved, in particular in sideband-resolved cavity optomechanics, for many systems overcoming the heating from the thermal bath remains a major challenge. In contrast, optomechanical systems in the sideband-unresolved limit are much easier to realize due to the relaxed requirements on their optical properties, and the possibility to use a feedback control schemes to reduce the motional energy. The achievable thermal occupation is ultimately limited by the correlation between the measurement precision and the back-action from the measurement. Here, we demonstrate measurement-based feedback cooling on a fully integrated optomechanical device fabricated using a pick-and-place method, operating in the deep sideband-unresolved limit. With the large optomechanical interaction and a low thermal decoherence rate, we achieve a minimal average phonon occupation of 0.76 when pre-cooled with liquid helium and 3.5 with liquid nitrogen. Significant sideband asymmetry for both bath temperatures verifies the quantum character of the mechanical motion. Our method and device are ideally suited for sensing applications directly operating at the quantum limit, greatly simplifying the operation of an optomechanical system in this regime.
The COLIBRI programme in CROCUS: characterisation of the fuel rods oscillator
Creators: name: Lamirand, Vincent
name: Frajtag, Pavel
name: Godat, Daniel
name: Hursin, Mathieu
name: Perret, Gregory
name: Pakari, Oskari
name: Laureau, Axel
name: Rais, Adolfo
name: Fiorina, Carlo
name: Pautz, Andreas
Publisher: name: Zenodo
Year: 2019
Subjects: CORTEX, COLOBRI

description: Presentation of COLIBRI in CORTEX at ANIMMA 2019.