cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Phenomenon of Shape Evolution due to Solar Driven Outgassing for Analogues of Small Kuiper Belt Objects
Creators: name: Zhao, Yuhui
name: Rezac, Ladislav
name: Skorov, Yuri
name: Li, Jian-Yang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: One of the key findings of the Rosetta's mission to the Jupiter family comet 67P/Churyumov-Gerasimenko was its peculiar bilobed shape along with the apparent north/south dichotomy in large scale morphology. This has re-ignited scientific discussions on the topic of origin, evolution and age of the nucleus. In this work we set up a general numerical investigation on the role of solar driven activity on the overall shape change. Our goal is to isolate and study the influence of key parameters for solar driven mass loss, and hopefully obtain a classification of the final shapes. We consider five general classes of three-dimensional (3D) objects for various initial conditions of spin-axis and orbital parameters, propagating them on different orbits accounting for solar driven CO ice sublimation. A detailed study of the coupling between sublimation curve and orbital parameters (for CO and H$_{2}$O ices) is also provided. The idealizations used in this study are aimed to remove the ad-hoc assumptions on activity source distribution, composition, and/or chemical inhomogeneities as applied in similar studies focusing on explaining a particular feature or observation. Our numerical experiments show that under no condition a homogeneous nucleus with solar driven outgassing can produce concave morphology on a convex shape. On the other hand, preexisting concavities can hardly be smoothed/removed for the assumed activity. In summary, the coupling between solar distance, eccentricity, spin-axis and its orientation, as well as effects on shadowing and self-heating do combine to induce morphology changes that might not be deducible without numerical simulations.
description: 16 pages, 15 figures, accepted for publication in MNRAS
Non glassy ground-state in a long-range antiferromagnetic frustrated model in the hypercubic cell
Creators: name: Franco, Leonardo
name: Cannas, Sergio A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We analize the statistical mechanics of a long-range antiferromagnetic model defined on a D-dimensional hypercube, both at zero and finite temperatures. The associated Hamiltonian is derived from a recently proposed complexity measure of Boolean functions, in the context of neural networks learning processes. We show that, depending of the value of D, the system either presents a low temperature antiferromagnetic stable phase or the global antiferromagnetic order disappears at any temperature. In the last case the ground state is an infinitely degenerated non-glassy one, composed by two equal size anti-aligned antiferromagnetic domains. We also present some results for the ferromagnetic version of the model.
description: 8 pages, 5 figures
Kinematic signatures of reverberation mapping of close binaries of supermassive black holes in active galactic nuclei III. The case of elliptical orbits
Creators: name: Kovacevic, Andjelka
name: Wang, Jian-Min
name: Popovic, Luka. C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: An intense search for kinematic signatures of reverberation mapping of close binary SMBH (SMBBH) is currently ongoing. Elliptical SMBBH systems (i.e. both orbits and disc-like broad-line regions (BLR) are elliptic) have not been assessed in two-dimensional transfer functions (2DTF) studies. We aim to numerically infer such a 2DTF because the geometry of the unresolved region is imprinted on their optical emission. Through this, we determine their specific kinematical signatures. We simulated the geometry and kinematics of SMBBH whose components are on elliptical orbits. Each SMBH had a disc-like elliptical BLR. The SMBHs were active and orbited each other tightly at a subparsec distance. Here we calculate for the first time 2DTF, as defined in the velocity-time delay plane, for several elliptical configurations of SMBBH orbits and their BLRs. We find that these very complex configurations are clearly resolved in maps. These results are distinct from those obtained from circular and disc-wind geometry. We calculate the expected line variability for all SMBBH configurations. We show that the line shapes are influenced by the orbital phase of the SMBBH. Some line profiles resemble observed profiles, but they can also be much deformed to look like those from the disc-wind model. First, our results imply that using our 2DTF, we can detect and quantify kinematic signatures of elliptical SMBBH. Second, the calculated expected line profiles share some intriguing similarities with observed profiles, but also with some profiles that are synthesised in disc-wind models. To overcome the non-uniqueness of the spectral line shapes as markers of SMBBH, they must be accompanied with 2DTF.
description: accepted for publication to A&A
Moniliophthora conchata Antonin, R. Ryoo
Creators: name: Antonín, Vladimír
name: Ryoo, Rhim
name: Ka, Kang-Hyeon
name: Sou, Hong-Duck
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Marasmiaceae
Moniliophthora
Moniliophthora conchata

description: Moniliophthora conchata (Har. Takah.) Antonín, R. Ryoo & K.-H. Ka, comb. nov.
 Basionym: Crinipellis conchata Har. Takah., Mycoscience 43: 343, 2002.
 Syn.: Chaetocalathus conchatus (Har. Takah.) Vizzini, Rivista di Micologia 51: 66, 2008.
Mycobank MB 808334
During our field research an almost identical fungus was found.It only differed in having distinctly smaller basidiospores, and, therefore, is described as a new variety here.
description: Published as part of Antonín, Vladimír, Ryoo, Rhim, Ka, Kang-Hyeon & Sou, Hong-Duck, 2014, Three new species of Crinipellis and one new variety of Moniliophthora (Basidiomycota, Marasmiaceae) described from the Republic of Korea, pp. 86-102 in Phytotaxa 170 (2) on page 96, DOI: 10.11646/phytotaxa.170.2.2, http://zenodo.org/record/5138969
Input Subsidies, Cash Constraints and Timing of Input Supply:-Experimental Evidence from Malawi
Creators: name: Holden, Stein T.
name: Lunduka, Rodney
name: Holden, Stein T.
name: Lunduka, Rodney
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: Political Economy
subject: Malawi
subject: input subsidies
subject: fertilizer
subject: cash constraints
subject: time inconsistency
subject: input delivery timing.

description: The study investigated the demand for fertilizer among rural farm households in Malawi that have been exposed to high fertilizer subsidy levels. Subsidies and cash constraints may limit their demand but their cash constraint may be less severe at harvest time than at planting time when they normally get their inputs. Three different experiments were used to assess the demand for fertilizer at harvest time and at planting time, to elicit farm gate shadow prices for fertilizer and to assess the gap between WTA and WTP prices for a standard input package The experiments demonstrated significant effects of timing and of cash constraints.
Volumes of symmetric random polytopes
Creators: name: Meckes, Mark W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Metric Geometry (math.MG)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 52A22; 60D05

description: We consider the moments of the volume of the symmetric convex hull of independent random points in an $n$-dimensional symmetric convex body. We calculate explicitly the second and fourth moments for $n$ points when the given body is $B_q^n$ (and all of the moments for the case $q = 2$), and derive from these the asymptotic behavior of the expected volume of a random simplex in those bodies.
description: AMS-LaTeX
Seismic array measurements at Virgo's West End Building for the configuration of a Newtonian-noise cancellation system
Creators: name: Tringali, M. C.
name: Bulik, T.
name: Harms, J.
name: Fiori, I.
name: Paoletti, F.
name: Singh, N.
name: Idzkowski, B.
name: Kutynia, A.
name: Nikliborc, K.
name: Suchinski, M.
name: Bertolini, A.
name: Koley, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Terrestrial gravity fluctuations produce so-called Newtonian noise (NN) which is expected to limit the low frequency sensitivity of existing gravitational-waves (GW) detectors LIGO and Virgo, when they will reach their full potential, and of next-generation detectors like the Einstein Telescope. In this paper, we present a detailed characterization of the seismic field at Virgo's West End Building as part of the development of a Newtonian noise cancellation system. The cancellation system will use optimally filtered data from a seismometer array to produce an estimate of the Newtonian-noise generated by the seismic field, and to subtract this estimate from the gravitational-wave channel of the detector. By using an array of 38 seismic sensors, we show that, despite the influence of the complexity of Virgo's infrastructure on the correlation across the array, Wiener filtering can still be very efficient in reconstructing the seismic field around the test-mass location. Taking into account the division of the building's foundations into separate concrete slabs, and the different properties of the seismic field across them, we conclude that the arrays to be used for the Newtonian-noise cancellation at Virgo will require a relatively large number of seismometers per test mass, i.e. significantly more than 10. Moreover, observed variations of the absolute noise residuals over time, related to the daily evolution of anthropogenic noise, suggest that the Wiener filter will need to be updated regularly, probably more often than every hour, to achieve stationarity of the background level after subtraction.
Purely kinetic k-essence as unified dark matter
Creators: name: Scherrer, Robert J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine k-essence models in which the Lagrangian p is a function only of the derivatives of a scalar field phi and does not depend explicity on phi. The evolution of phi for an arbitrary functional form for p can be given in terms of an exact analytic solution. For quite general conditions on the functional form of p, such models can evolve to a state characterized by a density scaling with the scale factor as rho = rho_0 + rho_1(a/a_0)^{-3}, but with a sound speed c_s^2 << 1 at all times. Such models can serve as a unified model for dark matter and dark energy, while avoiding the problems of the generalized Chaplygin gas models, which are due to a non-negligible sound speed in these models. A dark energy component with c_s << 1 serves to suppress cosmic microwave background fluctuations on large angular scales.
description: 5 pages, no figures, discussion and references added, to appear in Physical Review Letters
Accurate iteration-free mixed-stabilised formulation for laminar incompressible Navier-Stokes: Applications to fluid-structure interaction
Creators: name: Kadapa, Chennakesava
name: Dettmer, Wulf G
name: Peric, Djordje
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Stabilised mixed velocity-pressure formulations are one of the widely-used finite element schemes for computing the numerical solutions of laminar incompressible Navier-Stokes. In these formulations, the Newton-Raphson scheme is employed to solve the nonlinearity in the convection term. One fundamental issue with this approach is the computational cost incurred in the Newton-Raphson iterations at every load/time step. In this paper, we present an iteration-free mixed finite element formulation for incompressible Navier-Stokes that preserves second-order temporal accuracy of the generalised-alpha and related schemes for both velocity and pressure fields. First, we demonstrate the second-order temporal accuracy using numerical convergence studies for an example with a manufactured solution. Later, we assess the accuracy and the computational benefits of the proposed scheme by studying the benchmark example of flow past a fixed circular cylinder. Towards showcasing the applicability of the proposed technique in a wider context, the inf-sup stable P2-P1 pair for the formulation without stabilisation is also considered. Finally, the resulting benefits of using the proposed scheme for fluid-structure interaction problems is illustrated using two benchmark examples in fluid-flexible structure interaction.
description: 26 pages
Rural Small Business Finance - Evidence from the 1998 Survey of Small Business Finances
Creators: name: Gustafson, Cole R.
name: Gustafson, Cole R.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Community/Rural/Urban Development
subject: Financial Economics
subject: business
subject: finances
subject: rural
subject: small
subject: survey

description: The 1998 Survey of Small Business Finances provides robust information on the financing of small businesses including an overview of their firm’s organization, financial characteristics, and credit use. Information from the survey is used in this study to compare the financial characteristics of metro and rural small businesses. While many financial characteristics are similar, rural small businesses do own more land and depreciable assets, and have lower inventory and other current assets when compared with urban firms. Rural firms have relatively similar access to technology and financial services, although utilization varies. Both metro and rural small businesses rely on a wide variety of sources for financing, although rural small businesses have significantly more mortgages, loans from shareholders, and other types of loans, but fewer credit cards. Nonparametric rank order statistical methods were required because normality assumptions were violated due to asymmetric distribution of small firms.
Human housekeeping genes are compact
Creators: name: Eisenberg, Eli
name: Levanon, Erez Y.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: We identify a set of 575 human genes that are expressed in all conditions tested in a publicly available database of microarray results. Based on this common occurrence, the set is expected to be rich in "housekeeping" genes, showing constitutive expression in all tissues. We compare selected aspects of their genomic structure with a set of background genes. We find that the introns, untranslated regions and coding sequences of the housekeeping genes are shorter, indicating a selection for compactness in these genes.
Phase field fracture modelling using quasi-Newton methods and a new adaptive step scheme
Creators: name: Kristensen, Philip K.
name: Martínez-Pañeda, Emilio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We investigate the potential of quasi-Newton methods in facilitating convergence of monolithic solution schemes for phase field fracture modelling. Several paradigmatic boundary value problems are addressed, spanning the fields of quasi-static fracture, fatigue damage and dynamic cracking. The finite element results obtained reveal the robustness of quasi-Newton monolithic schemes, with convergence readily attained under both stable and unstable cracking conditions. Moreover, since the solution method is unconditionally stable, very significant computational gains are observed relative to the widely used staggered solution schemes. In addition, a new adaptive time increment scheme is presented to further reduces the computational cost while allowing to accurately resolve sudden changes in material behavior, such as unstable crack growth. Computation times can be reduced by several orders of magnitude, with the number of load increments required by the corresponding staggered solution being up to 3000 times higher. Quasi-Newton monolithic solution schemes can be a key enabler for large scale phase field fracture simulations. Implications are particularly relevant for the emerging field of phase field fatigue, as results show that staggered cycle-by-cycle calculations are prohibitive in mid or high cycle fatigue. The finite element codes are available to download from www.empaneda.com/codes.
Credit Counseling and Mortgage Termination by Low-Income Households
Creators: name: Hartarska, Valentina M.
name: Gonzalez-Vega, Claudio
name: Hartarska, Valentina M.
name: Gonzalez-Vega, Claudio
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural Finance

description: Published research on credit counseling and mortgage termination is surprisingly scarce, despite substantial growth in this industry. While the purpose of counseling is to help low-income borrowers to handle better debt, and thus prevent default, counseling could also improve these borrowers understanding of their financial positions and thus affect prepayment. This paper shows that evaluations of counseling programs with a narrow focus on default may miss an important effect that counseling may have on prepayment. We use a competing risks framework to study the effects on both default and prepayment of a counseling program implemented in several Mid-West states. Our results indicate that the default hazard was not lower for the graduates of the counseling program but that the prepayment hazard was higher. Overall, counseling seems to affect lenders’ profits but the net effect should be evaluated both in terms of prepayment and default.
Phanera bassacensis de Wit 1956
Creators: name: Bandyopadhyay, Subir
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Phanera
Phanera bassacensis

description: Phanera bassacensis (Pierre ex Gagnepain) de Wit (1956: 472).
 Bauhinia bassacensis Pierre ex Gagnepain (1912: 168).
 Type:— Harmand 1540 (lectotype P, n.v.). Gagnepain (1912) in the protologue of B. bassacensis cited ‘ Laos: Attopeu, mars 1877, n° 1540 [Harmand]. Cochin-chine: Phu-quoc, janvier 1874, n° 1399 [Pierre]’ after the morphological description. de Wit (1956) cited Harmand 1540 at P as the lectotype. Whereas, Larsen & Larsen (1996) cited Harmand 1240 at P as the holotype but it was not cited in the protologue of B. bassacensis. I have seen a Harmand’s collection having the field number 1240 at P (00798474, image!) with the same locality and date of collection as given in the protologue. The other collections of Harmand 1240 at P (00798475 image!) and K (000760864 image!) have been collected from Attopeu in 2/77.
 B. bassacensis Pierre ex Gagnep. var. nicobarica Tiwari et al. (2013: 13), syn. nov.
 Type:— INDIA. Andaman & Nicobar Islands: Great Nicobar Island, Campbell Bay, 20.2.2013, 16 m, K . Ravikumar, N. Balachandran & Umeshkumar Tiwari 115533 (holotype FRLH image!; isotypes FRLH image!, PBL).
 Prior to the publication of Tiwari et al. (2013) this species was known to occur in Thailand, Cambodia, Laos, Vietnam and Malay Peninsula (Larsen & Larsen 1996). In var. bassacensis all the petals were known to be greenish yellow or two of them with purple blotch at tip whereas in var. backeri de Wit (1956: 473) to be greenish yellow with purple veins and two or all of them with purple blotch at tip. In the present collection of var. nicobarica, Tiwari et al. (2013) stated the petals to be creamish with purple-red veins. From the image of the flower given in the protologue the petals appear to me as light yellow with purple veins. There is no purple blotch at tip in any of the petals. Thus not much difference in the colour of the petals exists between the said varieties. The herbarium specimens of var. bassacensis can easily be separated from var. backeri by the length and pubescence of the filaments and colour of the flower buds (Larsen & Larsen 1996). Larsen & Larsen (1996) recorded the filaments in the former variety to be 1.5–2 cm long and pubescent whereas in the latter variety the filaments were found to be 2.5–3.5 cm long and glabrous or sparsely hairy at base. Further the buds in the former variety are brownish pubescent whereas in the latter variety greyish pubescent.
description: Published as part of Bandyopadhyay, Subir, 2014, The taxonomic identity of Bauhinia bassacensis var. nicobarica (Leguminosae: Caesalpinioideae), pp. 219-220 in Phytotaxa 170 (3) on pages 219-220, DOI: 10.11646/phytotaxa.170.3.8, http://zenodo.org/record/5139104
Additional file 1 of Modified exosomal SIRPα variants alleviate white matter injury after intracerebral hemorrhage via microglia/macrophages
Creators: name: Gao, Xinjie
name: Yang, Heng
name: Xiao, Weiping
name: Su, Jiabin
name: Zhang, Yuwen
name: Wang, He
name: Ni, Wei
name: Gu, Yuxiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1: Figure S1. Verification of the SIRPα variant. Figure S2. Construction and packaging of lentivirus. Figure S3. Lentiviral infection of MSCs. Figure S4. Analysis of membranous and cytoplasmic SIRPα variants in MSCs. Figure S5. NTA analysis of different batches of exosomes. Figure S6. Biodistribution of SIRPα-v Exos at 24 hours post injection. Figure S7. Representative immunofluorescence images of SIRPα-v Exos in brain tissue. Figure S8. Representative immunofluorescence images of released SIRPα-v. Figure S9. Representative immunofluorescence images of SIRPα-v Exos with microglia. Figure S10A. Serum biomarker assay after continuous SIRPα-v Exo administration. Figure S11. Representative histopathological images of hematoxylin and eosin‐ stained slides of major organs after continuous SIRPα-v Exo administration. Figure S12. Serum sTM and vWF assay after SIRPα-v Exo administration. Figure S13. Serial H.E. staining after ICH. Figure S14. Other typical results of the Morris water maze test. Figure S15. Long-term SIRPα-v Exo administration improves depressive-like behaviors after ICH. Figure S16. Culture and identification of primary microglia. Figure S17. Representative images of immunostaining of Tregs. Table S1. Hematological data obtained from the tail. Table S2. Antibodies, concentrations and manufacturers used. Table S3. The sequences of primers used for RT-qPCR.
On symmetric versions of Sylvester's problem
Creators: name: Meckes, Mark W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Metric Geometry (math.MG)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 50A22; 50A40, 60D05

description: We consider moments of the normalized volume of a symmetric or nonsymmetric random polytope in a fixed symmetric convex body. We investigate for which bodies these moments are extremized, and calculate exact values in some of the extreme cases. We show that these moments are maximized among planar convex bodies by parallelograms.
description: AMS-LaTeX
Mit digitalen Strategien vom Modellsystem zum High-Tech-Material
Creators: name: Hickel, Tilmann
name: Bitzek, Erik
name: Neugebauer, Joerg
Publisher: name: Zenodo
Year: 2022
Subjects: Digitalisierung
Materialdesign
Maschinelles Lernen

description: Die Bewältigung technologischer und ökologischer  Herausforderungen hängt stark von der Verfügbarkeit neuer Materialien ab. Diese sind z.B. die Voraussetzung um CO2 Emissionen drastisch zu verringern  oder eine umweltfreundliche Mobilität zu verwirklichen. Die am Max-Planck-Institut für Eisenforschung entwickelten digitalen Strategien erlauben es, fundamentale Methoden, welche ursprünglich für idealisierte Modellsysteme entwickelt wurden, auf reale Materialien zu übertragen. Damit eröffnen sich neue Zugänge für die Materialforschung und ein beschleunigtes Werkstoffdesign.
description: Tackling crucial technological and ecological challenges relies heavily on the availability of new materials. Without them, reducing industrial CO2 emissions  or realizing environmentally friendly mobility would hardly be possible. The digital strategies developed at the Max-Planck-Institut für Eisenforschung extend fundamental methods originally developed for idealized model systems to real materials. This opens up completely new approaches for materials research and for accelerated materials design.
Gapped Dirac cones and spin texture in thin film topological insulator
Creators: name: Thalmeier, Peter
name: Akbari, Alireza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The protected surface states of topological insulators (TIs) form gapless Dirac cones corresponding non-degenerate eigenstates with helical spin polarisation. The presence of a warping term deforms the isotropic cone of the most simple model into snowflake Fermi surfaces as in Bi2Se3 and Bi2Te3. Their features have been identified in STM quasiparticle interference (QPI) experiments on isolated surfaces. Here we investigate the QPI spectrum for the TI thin-film geometry with finite tunnelling between the surface states. This leads to a dramatic change of spectrum due to gapping and a change in spin texture that should leave distinct signatures in the QPI pattern. We consider both normal and magnetic exchange scattering from the surface impurities and obtain the scattering t-matrix in Born approximation as well as the general closed solution. We show the expected systematic variation of QPI snowflake intensity features by varying film thickness and study, in particular, the influence on backscattering processes. We predict the variation of the QPI spectrum for Bi2Se3 thin films using the observed gap dependence from ARPES results.
description: 16 pages, 13 figures
A homing problem for diffusion processes with control-dependent variance
Creators: name: Lefebvre, Mario
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 93E20 (Primary) 60J60 (Secondary)

description: Controlled one-dimensional diffusion processes, with infinitesimal variance (instead of the infinitesimal mean) depending on the control variable, are considered in an interval located on the positive half-line. The process is controlled until it reaches either end of the interval. The aim is to minimize the expected value of a cost criterion with quadratic control costs on the way and a final cost equal to zero (resp. a large constant) if the process exits the interval through its left (resp. right) end point. Explicit expressions are obtained both for the optimal value of the control variable and the value function when the infinitesimal parameters of the processes are proportional to a power of the state variable.
Spinors of real type as polyforms and the generalized Killing equation
Creators: name: Cortés, Vicente
name: Lazaroiu, Calin
name: Shahbazi, C. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We develop a new framework for the study of generalized Killing spinors, where generalized Killing spinor equations, possibly with constraints, can be formulated equivalently as systems of partial differential equations for a polyform satisfying algebraic relations in the Kähler-Atiyah bundle constructed by quantizing the exterior algebra bundle of the underlying manifold. At the core of this framework lies the characterization, which we develop in detail, of the image of the spinor squaring map of an irreducible Clifford module $Σ$ of real type as a real algebraic variety in the Kähler-Atiyah algebra, which gives necessary and sufficient conditions for a polyform to be the square of a real spinor. We apply these results to Lorentzian four-manifolds, obtaining a new description of a real spinor on such a manifold through a certain distribution of parabolic 2-planes in its cotangent bundle. We use this result to give global characterizations of real Killing spinors on Lorentzian four-manifolds and of four-dimensional supersymmetric configurations of heterotic supergravity. In particular, we find new families of Einstein and non-Einstein four-dimensional Lorentzian metrics admitting real Killing spinors, some of which are deformations of the metric of AdS$_4$ space-time.
description: 56 pages
Credit Risk Models: An Application to Agricultural Lending
Creators: name: Katchova, Ani L.
name: Barry, Peter J.
name: Katchova, Ani L.
name: Barry, Peter J.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Agricultural Finance
subject: credit risk
subject: credit scoring
subject: credit value-at-risk
subject: debt
subject: default
subject: New Basel Accord.

description: Credit risk models are developed and used to estimate capital requirements for agricultural lenders under the New Basel Capital Accord. The theoretical models combine Merton’s distance-to-default approach with credit value-at-risk methodologies. Two applied models, CreditMetrics and KMV, are illustrated using farm financial data. Expected and unexpected losses for a portfolio of farms are calculated using probability of default, loss given default, and portfolio risk measures. The results show that credit quality and correlations among farms play a significant role in risk pricing for agricultural lenders.
Distance, dissimilarity index, and network community structure
Creators: name: Zhou, Haijun
Publisher: name: arXiv
Year: 2003
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We address the question of finding the community structure of a complex network. In an earlier effort [H. Zhou, {\em Phys. Rev. E} (2003)], the concept of network random walking is introduced and a distance measure defined. Here we calculate, based on this distance measure, the dissimilarity index between nearest-neighboring vertices of a network and design an algorithm to partition these vertices into communities that are hierarchically organized. Each community is characterized by an upper and a lower dissimilarity threshold. The algorithm is applied to several artificial and real-world networks, and excellent results are obtained. In the case of artificially generated random modular networks, this method outperforms the algorithm based on the concept of edge betweenness centrality. For yeast's protein-protein interaction network, we are able to identify many clusters that have well defined biological functions.
description: 10 pages, 7 figures, REVTeX4 format
Additional file 1 of Engineering tumor-specific catalytic nanosystem for NIR-II photothermal-augmented and synergistic starvation/chemodynamic nanotherapy
Creators: name: Zhou, Shuixiu
name: Xu, Jiahuan
name: Dai, Yanfei
name: Wei, Yan
name: Chen, Liang
name: Feng, Wei
name: Chen, Yu
name: Ni, Xuejun
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Fig. S1. TG analysis of POMs, POM-NH2 and GOD@POMs. Fig. S2. UV-vis-NIR absorption of GOD@POMs dispersed in H2O or PBS at 24  and 72 h. Fig. S3. TEM image of aggregated GOD@POMs after reaction with glucose. Fig. S4. UV-vis-NIR spectra and the corresponding digital photo of GOD@POMs dispersed in PBS with different pH values ranging from 4.0 to 7.3. Fig. S5. Glucose concentration and time-dependent oxidation of DPBF by GOD@POMs. Fig. S6. Heating and cooling curve of GOD@POMs aqueous solution under 1064 nm laser irradiation at 1.0 W/cm2. Fig. S7. CLSM images of C6 cells incubated with FITC-labelled GOD@POM after 8 h. Fig. S8. Cell viability assay of L929 cells after treatment with GOD@POMs 24 h at various concentrations. Fig. S9. Cell viabilities of C6 cells after treatment with POMs at various concentrations with or without laser irradiation (1064 nm, 1 W/cm2, 5 min). Fig. S10. The body weight of Kunming mice during 28 days observation after different treatments. Fig. S11. Biosafety evaluations of GOD@POMs in vivo. Fig. S12. H&E staining of major organ including heart, liver, spleen, lung and kidney collected from Kunming mice after 28 days treatment. Scale bar: 100 μm. Fig. S13. (a) Representative in vivo fluorescence images of C6 tumor-bearing mice at 0, 2, 4, 6, 8 and 12 h after intravenous injection of GOD@POMs. (b) Quantitative ROI assays of the fluorescence intensity of tumor at designated time points. (c) Ex vivo fluorescence images of major organs at 12 and 24 h after intravenous injection of GOD@POMs (H: heart, Li: liver, Sp: spleen, Lu: lung, Ki: kidney, Tu: tumor). (d) Quantitative ROI assays of the ex vivo fluorescence intensity of major organs and tumors. Fig. S14. In vitro NIR-I and NIR-II PA images of GOD@POMs at various Mo concentration (250, 500, 750, 1000 and 1500 μmol/L). Fig. S15. H&E staining of major organ tissues collected from mice after different treatments Scale bar: 100 μm. Table S1. The light-to-heat conversion efficiency of different of photothermal agents in the reported literatures.
Input Inefficiency in Commercial Banks: A Normalized Quadratic Input Distance Approach
Creators: name: Marsh, Thomas L.
name: Featherstone, Allen M.
name: Garrett, Thomas A.
name: Marsh, Thomas L.
name: Featherstone, Allen M.
name: Garrett, Thomas A.
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural Finance

description: A normalized quadratic input distance function is proposed with which to estimate technical efficiency on commercial banks regulated by the Federal Reserve System. The study period covers 1990 to 2000 using individual bank information from the Call and Banking Holding Company Database. A stochastic frontier model is specified to estimate the input normalized distance function and obtain measures of technical efficiency.
Premna cordiformis Li Bing Zhang & Yi F. Duan 2014, nom. nov.
Creators: name: Duan, Yi-Fan
name: Zhang, Libing
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Premna
Premna cordiformis

description: 10. Premna cordiformis Li Bing Zhang & Yi F. Duan, nom. nov.
 Replaced synonym:— Premna velutina C.Y. Wu (1977: 428), nom. illeg., non Premna velutina Gürke (1895: 338).
 Type:— CHINA. Yunnan, Longling, 1500 m, 14 Aug 1941, Wang Qiwu (C. W. Wang) 89944 (holotype, KUN).
 Etymology:—Latin, cordiformis, cordate-shape, referring to the cordate leaf blade of the species, one of its disgnostic characters (Chen & Gilbert 1994).
 Distribution:—Mixed forests; ca. 1500 m. SW Yunnan (Chen & Gilbert 1994).
description: Published as part of Duan, Yi-Fan & Zhang, Libing, 2014, Eight new names and lectotypification of six names in Lamianae (asterids I) for the Flora of China, pp. 278-282 in Phytotaxa 170 (4) on pages 278-282, DOI: 10.11646/phytotaxa.170.4.5, http://zenodo.org/record/5139116
Proceedings of the Fourteenth Workshop on Logical Frameworks and Meta-Languages: Theory and Practice
Creators: name: Miller, Dale
name: Scagnetto, Ivan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This volume contains a selection of papers presented at LFMTP 2019, the 14th International Workshop on Logical Frameworks and Meta-Languages: Theory and Practice (LFMTP), held on June 22, 2019, in Vancouver, Canada. The workshop was affiliated with the Thirty-Fourth Annual ACM/IEEE Symposium on Logic in Computer Science (LICS). Logical frameworks and meta-languages form a common substrate for representing, implementing and reasoning about a wide variety of deductive systems of interest in logic and computer science. Their design, implementation and their use in reasoning tasks, ranging from the correctness of software to the properties of formal systems, have been the focus of considerable research over the last two decades. This workshop will bring together designers, implementors and practitioners to discuss various aspects impinging on the structure and utility of logical frameworks, including the treatment of variable binding, inductive and co-inductive reasoning techniques and the expressiveness and lucidity of the reasoning process.
A small angle neutron scattering study of the vortex matter in La{2-x}Sr{x}CuO{4} (x=0.17)
Creators: name: Gilardi, R.
name: Streule, S.
name: Drew, A. J.
name: Divakar, U.
name: Lee, S. L.
name: Brown, S. P.
name: Forgan, E. M.
name: Momono, N.
name: Oda, M.
name: Mesot, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic phase diagram of slightly overdoped La{2-x}Sr{x}CuO{4} (x=0.17) is characterised by a field-induced hexagonal to square transition of the vortex lattice at low fields (~0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett. 88, 217003 (2002)]. Here we report on a small angle neutron scattering study of the vortex lattice at higher fields, that reveals no further change of the coordination of the square vortex lattice up to 10.5 Tesla applied perpendicular to the CuO2 planes. Moreover, it is found that the diffraction signal disappears at temperatures well below Tc, due to the melting of the vortex lattice.
description: 3 pages, 2 figures. Presented at the New3SC-4 meeting, San Diego, Jan. 16-21 2003; to be published in Int. J. Mod. Phys. B
A step in the direction of resolving the paradox of Perdew-Zunger self-interaction correction
Creators: name: Zope, Rajendra R.
name: Yamamoto, Yoh
name: Diaz, Carlos
name: Baruah, Tunna
name: Peralta, Juan E.
name: Jackson, Koblar A.
name: Santra, Biswajit
name: Perdew, John P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Self-interaction (SI) error, which results when exchange-correlation contributions to the total energy are approximated, limits the reliability of many density functional approximations. The Perdew-Zunger SI correction (PZSIC), when applied in conjunction with the local spin density approximation (LSDA), improves the description of many properties, but overall, this improvement is limited. Here we propose a modification to PZSIC that uses an iso-orbital indicator to identify regions where local SI corrections should be applied. Using this local-scaling SIC (LSIC) approach with LSDA, we analyze predictions for a wide range of properties including, for atoms, total energies, ionization potentials, and electron affinities, and for molecules, atomization energies, dissociation energy curves, reaction energies, and reaction barrier heights. LSIC preserves the results of PZSIC-LSDA for properties where it is successful and provides dramatic improvements for many of the other properties studied. Atomization energies calculated using LSIC are better than those of the Perdew, Burke, and Ernzerhof (PBE) generalized gradient approximation (GGA) and close to those obtained with the Strongly Constrained and Appropriately Normed (SCAN) meta-GGA. LSIC also restores the uniform gas limit for the exchange energy that is lost in PZSIC-LSDA. Further performance improvements may be obtained by an appropriate combination or modification of the local scaling factor and the particular density functional approximation.
description: 12 pages, 6 figures, to be published in Journal of Chemical Physics
Premna emarginata Li Bing Zhang & Yi F. Duan 2014, nom. nov.
Creators: name: Duan, Yi-Fan
name: Zhang, Libing
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Premna
Premna emarginata

description: 11. Premna emarginata Li Bing Zhang & Yi F. Duan, nom. nov.
 Replaced synonym:— Premna laevigata C.Y. Wu (1977: 440), nom. illeg., non Premna laevigata Miquel (1856: 895).
 Type:— CHINA. Yunnan: Mengla, 27 Oct 1959, Tsai Hse-tao 59-11098 (lectotype KUN-484508, isolectotype KUN-484510, here designated!).
 Etymology:—Latin, emarginata, emarginate, referring to the emarginate lower lip of calyx of the species, one of its disgnostic characters (Chen & Gilbert 1994).
 Distribution:—Mixed forests; 500– 600 m. Mengla, Yunnan (Chen & Gilbert 1994).
 Notes:—When Premna laevigata C.Y. Wu was published, the gathering Tsai Hse-tao 59-11098 was cited in the protologue, but no specific herbarium sheet was designated as holotype. This gathering consists of at least two sheets at KUN. We here designate KUN-484508 as the lectotype.
description: Published as part of Duan, Yi-Fan & Zhang, Libing, 2014, Eight new names and lectotypification of six names in Lamianae (asterids I) for the Flora of China, pp. 278-282 in Phytotaxa 170 (4) on pages 278-282, DOI: 10.11646/phytotaxa.170.4.5, http://zenodo.org/record/5139116
The DuPont Profitability Analysis Model: An E-Learning Application and Evaluation
Creators: name: Melvin, Jon
name: Boehlje, Michael
name: Dobbins, Craig L.
name: Gray, Allan W.
name: Melvin, Jon
name: Boehlje, Michael
name: Dobbins, Craig L.
name: Gray, Allan W.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Agricultural Finance
subject: DuPont profitability analysis
subject: e-learning
subject: computer assisted analysis
subject: return on equity (ROE)
subject: return on assets (ROA)

description: Successful farm business managers must understand the determinants of profitability and have an overall long-term or strategic management focus. The objective of this research is to help producers understand the impacts of different production, pricing, cost control and investment decisions on their farms financial performance. This objective will be accomplished by developing and testing a computer-based training and application tool to facilitate determining the financial health of farm businesses using the DuPont profitability analysis model. The results of the two experiments indicate that the computer software was effective for teaching techniques of profitability analysis contained within the DuPont model.
title: 01_0092
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Forest diagrams for elements of Thompson's group F
Creators: name: Belk, James M.
name: Brown, Kenneth S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65

description: We introduce forest diagrams to represent elements of Thompson's group F. These diagrams relate to a certain action of F on the real line in the same way that tree diagrams relate to the standard action of F on the unit interval. Using forest diagrams, we give a conceptually simple length formula for elements of F with respect to the {x_0,x_1} generating set, and we discuss the construction of minimum-length words for positive elements. Finally, we use forest diagrams and the length formula to examine the structure of the Cayley graph of F.
description: 44 pages, 70 figures
Confluent hypergeometric expansions of the confluent Heun function governed by two-term recurrence relations
Creators: name: Ishkhanyan, T. A.
name: Krainov, V. P.
name: Ishkhanyan, A. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We show that there exist infinitely many nontrivial choices of parameters of the single confluent Heun equation for which the three-term recurrence relations governing the expansions of the solutions in terms of the confluent hypergeometric functions 1F1 and 0F1 are reduced to two-term ones. In such cases the expansion coefficients are explicitly calculated in terms of the Euler gamma functions.
Convergence rate of linear two-time-scale stochastic approximation
Creators: name: Konda, Vijay R.
name: Tsitsiklis, John N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62L20 (Primary)

description: We study the rate of convergence of linear two-time-scale stochastic approximation methods. We consider two-time-scale linear iterations driven by i.i.d. noise, prove some results on their asymptotic covariance and establish asymptotic normality. The well-known result [Polyak, B. T. (1990). Automat. Remote Contr. 51 937-946; Ruppert, D. (1988). Technical Report 781, Cornell Univ.] on the optimality of Polyak-Ruppert averaging techniques specialized to linear stochastic approximation is established as a consequence of the general results in this paper.