cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MQT-TZ: Secure MQTT Broker for Biomedical Signal Processing on the Edge
Creators: name: Segarra, Carlos
name: Delgado-Gonzalo, Ricard
name: Schiavoni, Valerio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: J.3; H.5

description: Physical health records belong to healthcare providers, but the information contained within belongs to each patient. In an increasing manner, more health-related data is being acquired by wearables and other IoT devices following the ever-increasing trend of the "Quantified Self". Even though data protection regulations (e.g., GDPR) encourage the usage of privacy-preserving processing techniques, most of the current IoT infrastructure was not originally conceived for such purposes. One of the most used communication protocols, MQTT, is a lightweight publish-subscribe protocol commonly used in the Edge and IoT applications. In MQTT, the broker must process data on clear text, hence exposing a large attack surface for a malicious agent to steal/tamper with this health-related data. In this paper, we introduce MQT-TZ, a secure MQTT broker leveraging Arm TrustZone, a popular Trusted Execution Environment (TEE). We define a mutual TLS-based handshake and a two-layer encryption for end-to-end security using the TEE as a trusted proxy. We provide quantitative evaluation of our open-source PoC on streaming ECGs in real time and highlight the trade-offs.
description: The definitive version is published in the proceedings of the 2020 Medical Informatics Europe Conference (MIE2020)
Chemical Abundance Distributions of Galactic Halos and their Satellite Systems in a Lambda CDM Universe
Creators: name: Font, Andreea S.
name: Johnston, Kathryn V.
name: Bullock, James S.
name: Robertson, Brant
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a cosmologically motivated model for the hierachical formation of the stellar halo which includes a semi-analytic treatment of galactic chemical enrichment coupled to numerical simulations that track the orbital evolution and tidal disruption of satellites. A major motivating factor in this investigation is the observed systematic difference between the chemical abundances of stars in satellite galaxies and those in the Milky Way halo. Specifically, for the same [Fe/H] values, stars in neighboring satellite galaxies display significantly lower [alpha/Fe] ratios than stars in the halo. We find that the observed chemical abundance patterns are a natural outcome of the process of hierarchical assembly of the Galaxy. This result follows because the stellar halo in this context is built up from satellite galaxies accreted early on (more than 8-9 Gyr ago) and enriched in alpha-elements produced in Type II supernovae. In contrast, satellites which survive today are typically accreted late (within the last 4-5 Gyr) with nearly solar [alpha/Fe] values as a result of contributions from both Type II and Type Ia supernovae. We use our model to investigate the abundance distribution functions (using both [Fe/H] and [alpha/Fe] ratios) for stars in the halo and in surviving satellites. Our results suggest that the shapes and peaks in the abundance distribution functions provide a direct probe of the accretion histories of galaxies.
description: submitted to ApJ
ABSOLUTE VERSUS RELATIVE RISK PERCEPTIONS: AN APPLICATION TO ECONOMIC VALUES OF SEAFOOD SAFETY
Creators: name: Huang, Ju-Chin
name: Haab, Timothy C.
name: Whitehead, John C.
name: Huang, Ju-Chin
name: Haab, Timothy C.
name: Whitehead, John C.
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety

description: We examine the impact of multiple risks of related goods on consumption of a risky good. We argue that the consumption of a risky good depends on both its absolute risk level and its relative risks to other risky goods. Seafood consumption in eastern North Carolina is studied. We elicit, in a survey, the individual perceived risks as the reference points to derive the economic value of reducing health risk in seafood consumption. Revealed and stated data are combined to trace out demand changes in response to absolute and relative risk reductions. Our results show that seafood consumption is affected by the perceived absolute risk and by the relative risk to poultry, which confirms that individuals react to the multiple risks in a nonlinear way--as predicted by our analytical model.
An Empirical Calibration of the Completeness of the SDSS Quasar Survey
Creators: name: Berk, Daniel E. Vanden
name: Schneider, Donald P.
name: Richards, Gordon T.
name: Hall, Patrick B.
name: Strauss, Michael A.
name: Brunner, Robert
name: Fan, Xiaohui
name: Baldry, Ivan K.
name: York, Donald G.
name: Gunn, James E.
name: Nichol, Robert C.
name: Meiksin, Avery
name: Brinkmann, Jon
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spectra of nearly 20000 point-like objects to a Galactic reddening corrected magnitude of i=19.1 have been obtained to test the completeness of the SDSS quasar survey. The spatially-unresolved objects were selected from all regions of color space, sparsely sampled from within a 278 sq. deg. area of sky covered by this study. Only ten quasars were identified that were not targeted as candidates by the SDSS quasar survey (including both color and radio source selection). The inferred density of unresolved quasars on the sky that are missed by the SDSS algorithm is 0.44 per sq. deg, compared to 8.28 per sq. deg. for the selected quasar density, giving a completeness of 94.9(+2.6,-3.8) to the limiting magnitude. Omitting radio selection reduces the color-only selection completeness by about 1%. Of the ten newly identified quasars, three have detected broad absorption line systems, six are significantly redder than other quasars at the same redshift, and four have redshifts between 2.7 and 3.0 (the redshift range where the SDSS colors of quasars intersect the stellar locus). The fraction of quasars missed due to image defects and blends is approximately 4%, but this number varies by a few percent with magnitude. Quasars with extended images comprise about 6% of the SDSS sample, and the completeness of the selection algorithm for extended quasars is approximately 81%, based on the SDSS galaxy survey. The combined end-to-end completeness for the SDSS quasar survey is approximately 89%. The total corrected density of quasars on the sky to i=19.1 is estimated to be 10.2 per sq. deg.
description: 37 pages, 10 figures, accepted for publication in AJ
Application of magnetosomes in magnetic hyperthermia
Creators: name: Usov, N. A.
name: Gubanova, E. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetosomes, i.e. nanoparticles synthesized in nature by magnetotactic bacteria, are very promising for use in magnetic hyperthermia for the cancer treatment. Using the solution of the stochastic Landau-Lifshitz equation we calculate the specific absorption rate in an alternating magnetic field of assemblies of magnetosome chains depending on the particle size, the distance between particles in a chain, and the angle of the applied magnetic field with respect to the chain axis. The dependence of specific absorption rate on the distance between the chain particles is shown to have a bell-shaped form with a pronounced maximum. The maximum specific absorption rate only weakly depends on the diameter of the nanoparticles and the length of the chain. However, a significant decrease in specific absorption rate occurs in a dense chain assembly due to the strong magneto-dipole interaction of nanoparticles of different chains.
description: 11 pages, 5 figures
Evaluation of static and dynamic predictors of recidivism among federally sentenced Aboriginal sex offenders
Creators: name: Gélinas, Luce
Publisher: name: University of British Columbia
Year: 2009

description: This study examines factors associated with recidivism among Aboriginal sex offenders. Some of the factors are based on sociological theories put forth by advocates of the specific deterrence theory (Beccaria 1738-1794, Bentham 1748-1832), life course perspective (Sampson and Laub, 1993), and general theory of low selfcontrol (Gottfredson and Hirschi, 1990). Recidivism will be measured both as a probability of event occurrence (through logistic regression) and as "risk" of recidivating (incorporating probability and time duration through survival analysis). This study focuses on Aboriginal sex offenders released from prisons located in the Pacific and Prairie regions of Canada. The timeframe for this study is from January 1994 until December 31, 1998. Data were gathered through the use of the Correctional Service of Canada's automated system, the offender management system. Consistent with Gottfredson and Hirschi's theory, I found that low-self control increases the likelihood of recidivism. Sampson and Laub's life course perspective was partially supported. Findings indicate that recidivism is inversely associated with employment status. Marital status and level of education do not appear to be associated with recidivism. Finally, the findings show evidence that longer periods of incarceration serve to deter offenders as predicted by specific deterrence theory. Other factors such as age of release and level of supervision are also positively associated with recidivism. Recommendations for future studies are outlined.
Applying Machine Learning to Catalogue Matching in Astrophysics
Creators: name: Rohde, D J
name: Drinkwater, M J
name: Gallagher, M R
name: Downs, T
name: Doyle, M T
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of applying automated machine learning techniques to the problem of matching different object catalogues in astrophysics. In this study we take two partially matched catalogues where one of the two catalogues has a large positional uncertainty. The two catalogues we used here were taken from the HI Parkes All Sky Survey (HIPASS), and SuperCOSMOS optical survey. Previous work had matched 44% (1887 objects) of HIPASS to the SuperCOSMOS catalogue. A supervised learning algorithm was then applied to construct a model of the matched portion of our catalogue. Validation of the model shows that we achieved a good classification performance (99.12% correct). Applying this model, to the unmatched portion of the catalogue found 1209 new matches. This increases the catalogue size from 1887 matched objects to 3096. The combination of these procedures yields a catalogue that is 72% matched.
description: 8 Pages, 5 Figures
Super Calabi-Yau's and Special Lagrangians
Creators: name: Ricci, Riccardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply mirror symmetry to the super Calabi-Yau manifold CP^{(n|n+1)} and show that the mirror can be recast in a form which depends only on the superdimension and which is reminiscent of a generalized conifold. We discuss its geometrical properties in comparison to the familiar conifold geometry. In the second part of the paper examples of special-Lagrangian submanifolds are constructed for a class of super Calabi-Yau's. We finally comment on their infinitesimal deformations.
description: 20 pages, no figures, latex; v2: references added; v3: minor clarifications added, version published in JHEP
Astrometric Methods and Instrumentation to Identify and Characterize Extrasolar Planets: A Review
Creators: name: Sozzetti, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I present a review of astrometric techniques and instrumentation utilized to search for, detect, and characterize extra-solar planets. First, I briefly summarize the properties of the present-day sample of extrasolar planets, in connection with predictions from theoretical models of planet formation and evolution. Next, the generic approach to planet detection with astrometry is described, with significant discussion of a variety of technical, statistical, and astrophysical issues to be faced by future ground-based as well as space-borne efforts in order to achieve the required degree of measurement precision. After a brief summary of past and present efforts to detect planets via milli-arcsecond astrometry, I then discuss the planet-finding capabilities of future astrometric observatories aiming at micro-arcsecond precision. Lastly, I outline a number experiments that can be conducted by means of high-precision astrometry during the next decade, to illustrate its potential for important contributions to planetary science, in comparison with other indirect and direct methods for the detection and characterization of planetary systems.
description: 61 pages, 8 figures, PASP, accepted (October 2005 issue)
[Letter from Emily Carr to Ruth Humphrey]
Creators: name: Carr, Emily, 1871-1945
Publisher: name: The University of British Columbia
Year: 2015

description: Letter to Ruth Humphrey from Emily Carr dated July 2 - 6 pp., cover. Cover postmarked July 2, 1940. Comments on cover by R.H.: "I've been 4 weeks in bed "4 weeks tomorrow since I collapsed" and one of May 25 - same year (yes)".
Relativistic Corrections to the Sunyaev-Zeldovich Effect for Clusters of Galaxies. V. Effect of the Motion of the Observer
Creators: name: Nozawa, Satoshi
name: Itoh, Naoki
name: Kohyama, Yasuharu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We extend the formalism of the relativistic thermal and kinematical Sunyaev-Zeldovich effects to the observer's system (the Solar System) moving with a velocity $β_{S}$ with respect to the cosmic microwave background radiation. We confirm the results recently obtained by Chluba, Huetsi, and Sunyaev in the lowest order of the observer's velocity $β_{S}. We give a more general analytic expression for the thermal and kinematical Sunyaev-Zeldovich effects corresponding to the observer's system with the power series expansion approximation in terms of $θ_{e}$. It is found that the effect of the motion of the observer on the Sunyaev-Zeldovich effect will become important in the future high precision observation projects of the Sunyaev-Zeldovich effect.
description: 17 pages, 2 figures, in press in A&A
Correction of BDFk for fractional Feynman-Kac equation with Lévy flight
Creators: name: Shi, Jiankang
name: Chen, Minghua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this work, we present the correction formulas of the $k$-step BDF convolution quadrature at the starting $k-1$ steps for the fractional Feynman-Kac equation with Lévy flight. The desired $k$th-order convergence rate can be achieved with nonsmooth data. Based on the idea of [{\sc Jin, Li, and Zhou}, SIAM J. Sci. Comput., 39 (2017), A3129--A3152], we provide a detailed convergence analysis for the correction BDF$k$ scheme. The numerical experiments with spectral method are given to illustrate the effectiveness of the presented method. To the best of our knowledge, this is the first proof of the convergence analysis and numerical verified the sapce fractional evolution equation with correction BDF$k$.
description: 20pages
A SPATIAL ANALYSIS OF THE ECONOMIC AND ECOLOGICAL EFFICACY OF LAND RETIREMENT
Creators: name: Marshall, Elizabeth P.
name: Homans, Frances R.
name: Marshall, Elizabeth P.
name: Homans, Frances R.
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: Most land management policies, such as land retirement, have multiple objectives. This study uses a cellular automata simulation model to explore how various spatial characteristics of land parcels on a hypothetical landscape contribute to the efficacy of land retirement in the presence of multiple retirement objectives- hydrological improvement, habitat improvement, and cost. Statistical analysis of the simulation results is used to tie particular spatial characteristics back to achievement of the three distinct objectives. In order to combine the three objectives into a measure that allows decision-makers to rank the desirability of different retirement strategies, linear and nonlinear goal programming frameworks are introduced. These frameworks are explored to determine what each implies about the tradeoffs that must be made among objectives and among the spatial land parcel characteristics that contribute to those objectives.
High-resolution spectroscopy of an erupting minifilament and its impact on the nearby chromosphere
Creators: name: Kontogiannis, I.
name: Dineva, E.
name: Diercke, A.
name: Verma, M.
name: Kuckein, C.
name: Balthasar, H.
name: Denker, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the evolution of a mini-filament eruption in a quiet region at the center of the solar disk and its impact on the ambient atmosphere. We used high-spectral resolution imaging spectroscopy in H$α$ acquired by the echelle spectrograph of the Vacuum Tower Telescope (VTT), Tenerife, Spain, photospheric magnetic field observations from the Helioseismic and Magnetic Imager (HMI), and UV/EUV imaging from the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO). The H$α$ line profiles were noise-stripped using Principal Component Analysis (PCA) and then inverted to produce physical and cloud model parameter maps. The minifilament formed between small-scale, opposite-polarity magnetic features through a series of small reconnection events and it erupted within an hour after its appearance in H$α$. Its development and eruption exhibited similarities with large-scale erupting filaments, indicating the action of common mechanisms. Its eruption took place in two phases, namely a slow rise and a fast expansion, and it produced a coronal dimming, before the minifilament disappeared. During its eruption we detected a complicated velocity pattern, indicative of a twisted, thread-like structure. Part of its material returned to the chromosphere producing observable effects on nearby low-lying magnetic structures. Cloud model analysis showed that the minifilament was initially similar to other chromospheric fine structures, in terms of optical depth, source function and Doppler width, but it resembled a large-scale filament on its course to eruption. High spectral resolution observations of the chromosphere can provide a wealth of information regarding the dynamics and properties of minifilaments and their interactions with the surrounding atmosphere.
description: 15 pages, 8 Figures, submitted to ApJ
Die Weltkonferenz für "Kirche und Gesellschaft" im Echo der Presse
Creators: name: Schulz, Otmar
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 2 (1967): Ökumenische Rundschau, Band 16, Heft 2
Status Report on the Instanton Counting
Creators: name: Shadchin, Sergey
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The non-perturbative behavior of the N=2 supersymmetric Yang-Mills theories is both highly non-trivial and tractable. In the last three years the valuable progress was achieved in the instanton counting, the direct evaluation of the low-energy effective Wilsonian action of the theory. The localization technique together with the Lorentz deformation of the action provides an elegant way to reduce functional integrals, representing the effective action, to some finite dimensional contour integrals. These integrals, in their turn, can be converted into some difference equations which define the Seiberg-Witten curves, the main ingredient of another approach to the non-perturbative computations in the N=2 super Yang-Mills theories. Almost all models with classical gauge groups, allowed by the asymptotic freedom condition can be treated in such a way. In my talk I explain the localization approach to the problem, its relation to the Seiberg-Witten approach and finally I give a review of some interesting results.
description: Talk given on the on the Sixth International Conference ``Symmetry in Nonlinear Mathematical Physics'' (June 20--26, 2005, Kyiv). Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Modelling juvenile height in mixed species, even aged interior cedar-hemlock stands
Creators: name: Froese, Robert Edgar
Publisher: name: University of British Columbia
Year: 2009

description: Height models for juvenile even aged mixed-species stands were developed for locations near Nelson, British Columbia. Separate models were developed for each conifer species found, as well as for paper birch (Betula papyrifera). The objectives were to develop models for: 1) the number of years to reach breast height; 2) height achieved at a given age above breast height (height yield); 3) separate models for all trees (average height) and the largest diameter dominant tree free of damage or suppression on a 0.01 ha plot (top height); and, 4) site and stand attributes incorporated as independent variables. Numerous biophysical variables were tested as predictors of juvenile height. Statistically significant models for years to breast height and for height yield were developed for most species; most using variables other than site index. For modelling height yield, two ad hoc methods for including independent variables were used. For trees with multiple measurements ad hoc models were contrasted with a two-stage parameter prediction approach. The best ad hoc models used functions of site index; however, the parameter prediction approach produced models with equal or better fit to the best ad hoc models, including those using site index alone. Few consistent trends in model form were observed for both years to breast height and height yield, and many models were not biologically tenable and should not be applied operationally. Because all combinations of independent variables were not equally sampled, the data may have not been sufficient to capture trends or variables may be acting as analogues for other causal factors. Regardless, the measured variables were useful predictors of juvenile height, even with small data sets. This promising result demonstrated the validity of the approach and the potential for precise height models not based on site index.
MANAGEMENT PERSPECTIVES ON THE IMPACTS OF NAFTA ON THE U.S. TEXTILE AND APPAREL INDUSTRIES
Creators: name: Amponsah, William A.
name: Qin, Xiang Dong
name: Amponsah, William A.
name: Qin, Xiang Dong
Publisher: name: Unknown
Year: 2001
Subjects: International Relations/Trade

description: The NAFTA has brought profound changes to the U.S. textile and apparel industries, which have been interdependent with those in Mexico and Canada. A nationwide textile and apparel business survey has unveiled the management's perspectives on pros and cons of the NAFTA to the development and prosperity of the two industries.
The halo-model description of marked statistics
Creators: name: Sheth, Ravi K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Marked statistics allow sensitive tests of how galaxy properties correlate with environment, as well as of how correlations between galaxy properties are affected by environment. A halo-model description of marked correlations is developed, which incorporates the effects which arise from the facts that typical galaxy marks (e.g., luminosity, color, star formation rate, stellar mass) depend on the mass of the parent halo, and that massive haloes extend to larger radii and populate denser regions. Comparison with measured marked statistics in semi-analytic galaxy formation models shows good agreement on scales smaller than a Megaparsec, and excellent agreement on larger scales. The halo-model description shows clearly that the behaviour of some low-order marked statistics on these scales encodes information about the mean galaxy mark as a function of halo mass, but is insensitive to mark-gradients within haloes. Higher-order statistics encode information about higher order moments of the distribution of marks within haloes. This information is obtained without ever having to identify haloes or clusters in the galaxy distribution. On scales smaller than a Megaparsec, the halo-model calculation shows that marked statistics allow sensitive tests of whether or not central galaxies in haloes are a special population. A prescription for including more general mark-gradients in the halo-model description is also provided. The formalism developed here is particularly well-suited to interpretation of marked statistics in astrophysical datasets, because it is phrased in the same language that is currently used to interpret more standard measures of galaxy clustering.
description: 12 pages, 8 figures, MNRAS, in press
ESTIMATION OF ARSENIC IN SOME PONDS IN KAKDWIP
Creators: name: Bhubanyu Basu
Publisher: name: figshare
Year: 2020
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: Arsenic and its contamination in water. The health hazards. It is a study to check the levels of arsenic in some ponds.
SIMULATING THE EFFECTS OF ADOPTION OF GENETICALLY MODIFIED SOYBEANS IN THE U.S.
Creators: name: Nadolnyak, Denis A.
name: Sheldon, Ian M.
name: Nadolnyak, Denis A.
name: Sheldon, Ian M.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The paper models the distributional effects of partial adoption of genetically modified soybeans under the assumptions of imperfectly competitive markets and identity preservation requirements. Our results show the welfare costs of market imperfections and improve understanding the diffusion of innovation in agriculture.
Factorization fits to charmless strangeless B decays
Creators: name: Cottingham, W. N.
name: Whittingham, I. B.
name: Wilson, F. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present fits to charmless strangeless hadronic B decay data for mean branching ratios and CP-violating asymmetries using the QCD factorization model of Beneke et al. Apart from one CP-violating parameter, the model gives a very good representation of 26 measured data. We find the CKM angle alpha = (93.5 +/- 8.4 -1.3) degrees and to be quite stable to plausible "charming penguin" corrections.
description: 4 pages, LaTeX, Minor changes to text, references added
EVALUATION OF OPTIMUM REGRET DECISIONS IN CROP SELLING
Creators: name: Lutgen, Lynn
name: Helmers, Glenn A.
name: Lutgen, Lynn
name: Helmers, Glenn A.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Minimum regret solutions from alternative monthly sales for corn, wheat, and soybeans were determined. The data set involved eleven years of monthly prices for corn and soybeans and twelve years for wheat. The regret, risk (MOTAD), and expected value of the optimum regret solutions were compared to solutions using other optimizing techniques.
MANAGING YIELD RISK THROUGH A COOPERATIVE
Creators: name: Zeuli, Kimberly A.
name: Skees, Jerry R.
name: Zeuli, Kimberly A.
name: Skees, Jerry R.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness
Risk and Uncertainty

description: Developing new risk management products for all agricultural commodities has increased in importance given recent legislation. Vegetables have been difficult to insure. This paper investigates the use of index contracts for growers belonging to a Kentucky vegetable cooperative. Index contracts should be significantly more efficient than current crop insurance alternatives.
Black Holes and the Spectrum of Half-BPS States in N=4 Supersymmetric String Theory
Creators: name: Sen, Ashoke
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The entropy of a half-BPS black hole in N=4 supersymmetric heterotic string compactification is independent of the details of the charge vector and is a function only of the norm of the charge vector calculated using the appropriate Lorenzian metric. Thus in order for this to agree with the degeneracy of the elementary string states, the latter must also be a function of the same invariant norm. We show that this is true for generic CHL compactifications to all orders in a power series expansion in the inverse charges, but there are exponentially suppressed corrections which do depend on the details of the charge vector. This is consistent with the hypothesis that the black hole entropy reproduces the degeneracy of elementary string states to all orders in a power series expansion in the inverse charges, and helps us extend the earlier conjectured relation between black hole entropy and degeneracy of elementary string states to generic half-BPS electrically charged states in generic N=4 supersymmetric heterotic string compactification. Using this result we can also relate the black hole entropy to the statistical entropy calculated using an ensemble of elementary string states that contains all BPS states along a fixed null line in the lattice of electric charges.
description: LaTeX file, 31 pages
RESOURCE QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY
Creators: name: Rosen, Stacey L.
name: Wiebe, Keith D.
name: Rosen, Stacey L.
name: Wiebe, Keith D.
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety
Productivity Analysis

description: USDA's Economic Research Service estimates that about 33 percent of the developing world's people suffer from insufficient food intake. Growth in agricultural productivity is critical to improvements in food security. We will examine the impact of changes in acreage and fertilizer response on production in 67 study countries and review the implications for food security.
Energy conversion in systems-contained laser irradiated metallic nanoparticles - comparison of results from analytical solutions and numerical methods
Creators: name: Piotr Radomski
name: Paweł Ziółkowski
name: Dariusz Mikielewicz
Publisher: name: Gdańsk University of Technology
Year: 2023
Subjects: subject: ENERGY CONVERSION
subject: HEAT TRANSFER
subject: METALLIC NANOPARTICLES
subject: SMOLUCHOWSKI THEORY

description: This work introduces the theoretical method of metallic nanoparticles’ (NPs’) heat and mass transfer where the particles are
coated on a surface (base), together with considering the case wherein nanoparticles move freely in a pipe. In order to simulate the heat
transfer, energy and radiative transfer equations are adjusted to the considered issue. NPs’ properties are determined following the
nanofluidic theories, whereas absorption and scattering coefficients are described using either Mie-Lorenz theory or Rayleigh-Drude approximation. Thermal boundary conditions are implemented based on the microscale heat transfer and Smoluchowski theory. Results are
compared with the classical Fourier transport differential solutions that have been adjusted to laser irradiation.
Magnetization reversal in S/F/S Josephson junctions on a 3D topological insulator
Creators: name: Bobkova, I. V.
name: Bobkov, A. M.
name: Rahmonov, I. R.
name: Mazanik, A. A.
name: Sengupta, K.
name: Shukrinov, Yu. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study a magnetization reversal by an electric current pulse in a superconductor/insulating ferromagnet/superconductor Josephson junction placed on top of a 3D topological insulator. It is demonstrated that such a system is perspective for low-dissipative spintronics because of the strong spin-momentum locking in the TI surface states. This property provides an ideally strong coupling between the orbital and spin degrees of freedom thus giving a possibility of efficient reversal of the magnetic moment by current pulse with amplitude lower than the critical current, that results in strongly reduced energy dissipation. The underlying physical mechanism of the reversal is discussed. The influence of the magnetic anisotropy on the controllability of the reversal by the pulse duration is investigated. In addition, a way of a simultaneous electrical detection of the reversal is proposed.
description: 8 pages, 6 figures
Eavesdropping without quantum memory
Creators: name: Bechmann-Pasquinucci, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In quantum cryptography the optimal eavesdropping strategy requires that the eavesdropper uses quantum memories in order to optimize her information. What happens if the eavesdropper has no quantum memory? It is shown that the best strategy is actually to adopt the simple intercept/resend strategy.
description: 9 pages LaTeX, 3 figures
ESTIMATING PRINCIPAL OUTSTANDING MODELS FOR FARM SERVICE AGENCY GUARANTEED LOANS
Creators: name: Settlage, Latisha A.
name: Dixon, Bruce L.
name: Ahrendsen, Bruce L.
name: Koenig, Steven R.
name: Settlage, Latisha A.
name: Dixon, Bruce L.
name: Ahrendsen, Bruce L.
name: Koenig, Steven R.
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural Finance

description: Financial, farm economy and bank factors are hypothesized to explain variation in FSA guaranteed loan principal outstanding. Regression models using state-level data (1990-1998) are estimated. Debt-to-asset ratios, percentage of agricultural revenues due to crops, interest rates, and off-farm income are significant variables for both farm ownership and operating loan principal.
Blocking tau transmission by biomimetic graphene nanoparticles.
Creators: name: Zhu, Runyao
name: Wang, Yichun
Publisher: name: University of Notre Dame
Year: 2024
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Tauopathies are a class of neurodegenerative diseases resulting in cognitive dysfunction, executive dysfunction, and motor disturbance. The primary pathological feature of tauopathies is the presence of neurofibrillary tangles in the brain composed of tau protein aggregates. Moreover, tau aggregates can spread from neuron to neuron and lead to the propagation of tau pathology. Although numerous small molecules are known to inhibit tau aggregation and block tau cell-to-cell transmission, it is still challenging to use them for therapeutic applications due to poor specificity and low blood-brain barrier (BBB) penetration. Graphene nanoparticles were previously demonstrated to penetrate the BBB and are amenable to functionalization for targeted delivery. Moreover, these nanoscale biomimetic particles can self-assemble or assemble with various biomolecules including proteins. In this paper, we show that graphene quantum dots (GQDs), as graphene nanoparticles, block the seeding activity of tau fibrils by inhibiting the fibrillization of monomeric tau and triggering the disaggregation of tau filaments. This behavior is attributed to electrostatic and π–π stacking interactions of GQDs with tau. Overall, our studies indicate that GQDs with biomimetic properties can efficiently inhibit and disassemble pathological tau aggregates, and thus block tau transmission, which supports their future developments as a potential treatment for tauopathies.
INVESTMENTS AND PROPERTY RIGHTS IN RUSSIA: EVIDENCE FROM SMALL FIRMS IN SAMARA
Creators: name: Hartarska, Valentina M.
name: Hartarska, Valentina M.
Publisher: name: Unknown
Year: 2001
Subjects: Resource /Energy Economics and Policy

description: This study establishes empirically that the financial restrictions faced by micro and small entrepreneurs in Russia influence their investment decisions. Survey data from 305 entrepreneurs are used to identify credit market imperfections resulting from asymmetric information.
Recent Developments in Perturbative QCD
Creators: name: Dixon, Lance J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review recent progress in perturbative QCD on two fronts: extending next-to-next-to-leading order QCD corrections to a broader range of collider processes, and applying twistor-space methods (and related spinoffs) to computations of multi-parton scattering amplitudes.
description: 13 pages, 7 figures. Talk presented at 13th International Workshop on Deep Inelastic Scattering (DIS 05), Madison, Wisconsin, April, 2005
CREDIT COUNSELING AND MORTGAGE LOAN DEFAULT BY RURAL AND URBAN LOW INCOME HOUSEHOLDS
Creators: name: Hartarska, Valentina M.
name: Gonzalez-Vega, Claudio
name: Hartarska, Valentina M.
name: Gonzalez-Vega, Claudio
Publisher: name: Unknown
Year: 2001
Subjects: Financial Economics

description: A competing risks model is implemented to establish the influence of cash flow-based counseling on mortgage loan repayment by rural and urban low-income households. Data from 405 counseled and non-counseled clients are used to test hypotheses about the effectiveness of counseling, duration of effects, and rural-urban differences.
A Comparative Study of Psychometric Instrumentsin Software Engineering
Creators: name: Gleyser Guimarães
Publisher: name: figshare
Year: 2021
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: A Comparative Study of Psychometric Instrumentsin Software Engineering

We created a questionnaire with five sections to apply the psychometric instruments.
Simultaneous dual-species laser cooling using an optical frequency comb
Creators: name: Buhin, D.
name: Kovacic, D.
name: Schmid, F.
name: Kruljac, M.
name: Vulic, V.
name: Ban, T.
name: Aumiler, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate 1D simultaneous laser cooling of $^{87}$Rb and $^{85}$Rb atoms using an optical frequency comb. By adjusting the pulse repetition frequency and the offset frequency, the frequency comb spectrum is tuned to ensure that two distinct frequency comb modes are simultaneously red-detuned from the cooling transitions, one mode for each species. Starting from a pre-cooled cloud of $^{85,87}$Rb atoms at above-Doppler temperatures, we show simultaneous cooling of both species down to the Doppler temperature using two counter-propagating $σ$$^{+}$/$σ$$^{-}$-polarized beams from the frequency comb. The results indicate that simultaneous dual-species frequency comb cooling does not affect the cooling characteristics of individual atomic species. The results of this work imply that several atomic species could be cooled simultaneously using a single frequency comb source. This comb-based multi-channel laser cooling could bring significant advances in multi-species atom interferometers for space applications and in the study of multi-species interactions.
Glossary of the article "Citing and referencing habits in Medicine and Social Sciences journals in 2019"
Creators: name: Santos, Erika Alves
name: Peroni, Silvio
name: Mucheroni, Marcos Luiz
Publisher: name: Zenodo
Year: 2020

description: This document contains a glossary of the terms used in the article entitled "Citing and referencing habits in Medicine and Social Sciences journals in 2019".
THE IMPACT OF SEED-GRANT FUNDING ON EXTRAMURAL RESEARCH AWARDS
Creators: name: Costa, James M.
name: Costa, James M.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Public Economics
subject: Teaching/Communication/Extension/Profession
subject: research productivity
subject: seed grant
subject: grant funding

description: The Grant-in-Aid Program is a State sponsored seed grant program whereby the State of Minnesota provides the University of Minnesota approximately $2 million annually to fund new faculty research. Recently, the Graduate School engaged in an internal review of the Grant-in-Aid program. The purpose of the review was to determine how effective their seed grant program was in enabling University faculty to obtain additional grant funding from agencies outside the University. The following study discusses this review in some detail. An econometric analysis of survey data indicates that the seed-grant program is highly effective in enabling faculty to gain additional research funding. Further it was found that the ability of a faculty member to obtain additional extramural funding is dependent upon the discipline in which the research is being conducted.
ESTIMATING WATER QUALITY BENEFITS BY COMBINING REVEALED AND STATED PREFERENCE METHODS: AN APPLICATION IN THE MINNESOTA RIVER
Creators: name: Mathews, Leah Greden
name: Mathews, Leah Greden
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: nonmarket valuation
subject: water quality

description: Data from a 1997 survey of Minnesota residents was used to construct a panel of revealed and stated preference data. Panel regression results yield an estimate of household willingness to pay for phosphorus reductions in the Minnesota River of $38.88 per year.
Circle patterns on singular surfaces
Creators: name: Schlenker, Jean-Marc
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We consider ``hyperideal'' circle patterns, i.e. patterns of disks appearing in the definition of the Delaunay decomposition associated to a set of disjoint disks, possibly with cone singularities at the center of those disks. Hyperideal circle patterns are associated to hyperideal hyperbolic polyhedra. We describe the possible intersection angles and singular curvatures of those circle patterns, on Euclidean or hyperbolic surfaces with conical singularities. This is related to results on the dihedral angles of ideal or hyperideal hyperbolic polyhedra.
description: 41 pages, 10 figures. v2: more complete statements, simpler proofs, intro rewritten to mention Delaunay decompositions
Achieving fast oxygen diffusion in perovskites by cation ordering
Creators: name: Taskin, A. A.
name: Lavrov, A. N.
name: Ando, Yoichi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The oxygen-exchange behavior has been studied in half-doped manganese and cobalt perovskite oxides. We have found that the oxygen diffusivity in Gd_{0.5}Ba_{0.5}MnO_{3-δ} can be enhanced by orders of magnitude by inducing crystallographic ordering among lanthanide and alkali-earth ions in the A-site sublattice. Transformation of a simple cubic perovskite, with randomly occupied A-sites, into a layered crystal GdBaMn_2O_{5+x} (or isostructural GdBaCo_2O_{5+x} for cobalt oxide) with alternating lanthanide and alkali-earth planes reduces the oxygen bonding strength and provides disorder-free channels for ion motion, pointing to an efficient way to design new ionic conductors.
description: 4 pages, 4 figures, accepted for publication in Appl.Phys.Lett
Links between connections, parallel transports, and transports along paths in differentiable fibre bundles
Creators: name: Iliev, Bozhidar Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C99, 53C05 (Primary); 55R99, 58A30 (Secondary)

description: The axiomatic approach to parallel transport theory is partially discussed. Bijective correspondences between the sets of connections, (axiomatically defined) parallel transports, and transports along paths satisfying some additional conditions, are constructed. In particular, the equivalence between the concepts "connection" and "(axiomatically defined) parallel transport" is established. Some results which are specific for topological and vector bundles are presented.
description: In v.4 is added a section devoted to some peculiarities of (parallel) transports in vector bundles. For other papers on this topic, view http://theo.inrne.bas.bg/~bozho/
AN ECONOMIC ANALYSIS OF A FOOD SECURITY COMMODITY RESERVE: COMMODITY VS. CASH
Creators: name: Young, C. Edwin
name: Westcott, Paul C.
name: Hoffman, Linwood A.
name: Lin, William W.
name: Rosen, Stacey L.
name: Young, C. Edwin
name: Westcott, Paul C.
name: Hoffman, Linwood A.
name: Lin, William W.
name: Rosen, Stacey L.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Food aid
subject: agricultural policy
subject: stocks

description: The cost of operating the Food Security Commodity Reserve as a commodity reserve was compared with the cost of a cash reserve to purchase food aid supplies only in the period of need. Preliminary simulation results reveal the cash reserve to be less costly in almost all cases.
Dimensionless constants, cosmology and other dark matters
Creators: name: Tegmark, Max
name: Aguirre, Anthony
name: Rees, Martin J
name: Wilczek, Frank
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify 31 dimensionless physical constants required by particle physics and cosmology, and emphasize that both microphysical constraints and selection effects might help elucidate their origin. Axion cosmology provides an instructive example, in which these two kinds of arguments must both be taken into account, and work well together. If a Peccei-Quinn phase transition occurred before or during inflation, then the axion dark matter density will vary from place to place with a probability distribution. By calculating the net dark matter halo formation rate as a function of all four relevant cosmological parameters and assessing other constraints, we find that this probability distribution, computed at stable solar systems, is arguably peaked near the observed dark matter density. If cosmologically relevant WIMP dark matter is discovered, then one naturally expects comparable densities of WIMPs and axions, making it important to follow up with precision measurements to determine whether WIMPs account for all of the dark matter or merely part of it.
description: 29 pages, 13 figs, minor mods to match published PRD version