cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ภาษาแพทย์
Creators: name: เยาวลักษณ์ กระแสสินธุ์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 49-59
Implementing a Quantum Coin Scheme
Creators: name: Murray, Hazel
name: Horgan, Jerry
name: Santos, Joao F.
name: Malone, David
name: Siljak, Harun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum computing has the power to break current cryptographic systems, disrupting online banking, shopping, data storage and communications. Quantum computing also has the power to support stronger more resistant technologies. In this paper, we describe a digital cash scheme created by Dmitry Gavinsky, which utilises the capability of quantum computing. We contribute by setting out the methods for implementing this scheme. For both the creation and verification of quantum coins we convert the algebraic steps into computing steps. As part of this, we describe the methods used to convert information stored on classical bits to information stored on quantum bits.
description: 7 pages, 2017 Irish Signal and Systems conference proceedings
One legacy: ONE ICHNOLOGY! Richard Granville Bromley (1939–2018)
Creators: name: Vallon, Lothar H.
name: Nielsen, Kurt S. S.
name: Milàn, Jesper
name: Ekdale, Allan A.
name: Rindsberg, Andrew K.
name: Kjeldahl-Vallon, Tina A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: One legacy: ONE ICHNOLOGY! Richard Granville Bromley (1939–2018)
Induced interactions and quench dynamics of bosonic impurities immersed in a Fermi sea
Creators: name: Mukherjee, K.
name: Mistakidis, S. I.
name: Majumder, S.
name: Schmelcher, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We unravel the ground state properties and the non-equilibrium quantum dynamics of two bosonic impurities immersed in an one-dimensional fermionic environment by applying a quench of the impurity-medium interaction strength. In the ground state, the impurities and the Fermi sea are phase-separated for strong impurity-medium repulsions while they experience a localization tendency around the trap center for large attractions. We demonstrate the presence of attractive induced interactions mediated by the host for impurity-medium couplings of either sign and analyze the competition between induced and direct interactions. Following a quench to repulsive interactions triggers a breathing motion in both components, with an interaction dependent frequency and amplitude for the impurities, and a dynamical phase-separation between the impurities and their surrounding for strong repulsions. For attractive post-quench couplings a beating pattern owing its existence to the dominant role of induced interactions takes place with both components showing a localization trend around the trap center. In both quench scenarios, attractive induced correlations are manifested between non-interacting impurities and are found to dominate the direct ones only for quenches to attractive couplings.
A Theoretical Perspective on Hyperdimensional Computing
Creators: name: Thomas, Anthony
name: Dasgupta, Sanjoy
name: Rosing, Tajana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Hyperdimensional (HD) computing is a set of neurally inspired methods for obtaining high-dimensional, low-precision, distributed representations of data. These representations can be combined with simple, neurally plausible algorithms to effect a variety of information processing tasks. HD computing has recently garnered significant interest from the computer hardware community as an energy-efficient, low-latency, and noise-robust tool for solving learning problems. In this review, we present a unified treatment of the theoretical foundations of HD computing with a focus on the suitability of representations for learning.
description: Updates with published version
HOW WESTERN HEMISPHERE INTEGRATION AFFECTS THE U.S. ECONOMY IN AN INTERTEMPORAL GLOBAL MODEL
Creators: name: Diao, Xinshen
name: Somwaru, Agapi
name: Raney, Terri
name: Diao, Xinshen
name: Somwaru, Agapi
name: Raney, Terri
Publisher: name: Unknown
Year: 1998
Subjects: International Relations/Trade

description: In a global general equilibrium analysis, an FTAA excluding the United States erodes U.S. agricultural trade preferences and export gains achieved under NAFTA. Participation in an FTAA increases U.S. agriculture exports $740 million, with gains in Central American and Caribbean Markets more than offsetting declines in NAFTA, Asia, and Europe.
Giant voltage control of spin Hall nano-oscillator damping
Creators: name: Fulara, Himanshu
name: Zahedinejad, Mohammad
name: Khymyn, Roman
name: Dvornik, Mykola
name: Fukami, Shunsuke
name: Kanai, Shun
name: Ohno, Hideo
name: Åkerman, Johan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Spin Hall nano-oscillators (SHNOs) are emerging spintronic devices for microwave signal generation and oscillator based neuromorphic computing combining nano-scale footprint, fast and ultra-wide microwave frequency tunability, CMOS compatibility, and strong non-linear properties providing robust large-scale mutual synchronization in chains and two-dimensional arrays. While SHNOs can be tuned via magnetic fields and the drive current, neither approach is conducive for individual SHNO control in large arrays. Here, we demonstrate electrically gated W/CoFeB/MgO nano-constrictions in which the voltage-dependent perpendicular magnetic anisotropy, tunes the frequency and, thanks to nano-constriction geometry, drastically modifies the spin-wave localization in the constriction region resulting in a giant 42 % variation of the effective damping over four volts. As a consequence, the SHNO threshold current can be strongly tuned. Our demonstration adds key functionality to nano-constriction SHNOs and paves the way for energy-efficient control of individual oscillators in SHNO chains and arrays for neuromorphic computing.
Apple CT Test Reconstructions compared in "Quantitative comparison of deep learning-based image reconstruction methods for low-dose and sparse-angle CT applications"
Creators: name: Leuschner, Johannes
name: Schmidt, Maximilian
name: Ganguly, Poulami Somanya
name: Andriiashen, Vladyslav
name: Coban, Sophia Bethany
name: Denker, Alexander
name: Eijnatten, Maureen Van
Publisher: name: Zenodo
Year: 2021

description: Supplementing record containing the test reconstructions computed for the comparison on the Apple CT Datasets in the article "Quantitative comparison of deep learning-based image reconstruction methods for low-dose and sparse-angle CT applications". The experiments include 12 different settings: Noise settings: Noise-free, Gaussian noise, Scattering Numbers of angles: 50, 10, 5, 2 For each setting and each method, reconstructions for 100 selected test slices are included. For details, see the article "Quantitative comparison of deep learning-based image reconstruction methods for low-dose and sparse-angle CT applications". See also the supplementary record containing (trained network) parameters and the supplementary repository providing source code. Below are references for the included methods. cinn: A. Denker et al., 2020, Conditional Normalizing Flows for Low-Dose Computed Tomography Image Reconstruction fbp: Filtered back-projection (ODL implementation) fbpistaunet: T. Liu et al., 2020, Interpreting U-Nets via Task-Driven Multiscale Dictionary Learning fbpmsdnet: D. Pelt et al., 2017, A mixed-scale dense convolutional neural network for image analysis fbpunet: K. H. Jin et al., 2017, Deep Convolutional Neural Network for Inverse Problems in Imaging ictnet: D. Bauer et al., 2021, iCTU-Net (submitted, based on iCT-Net) learnedpd: J. Adler et al., 2018, Learned Primal-Dual Reconstruction tv: Total Variation Regularization (DIVαℓ implementation)
Is room-temperature superconductivity with phonons possible?
Creators: name: de Llano, M.
name: Grether, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By recognizing the vital importance of two-hole Cooper pairs (CPs) in addition to the usual two-electron ones in a strongly-interacting many-electron system, the concept of CPs was re-examined with striking conclusions. Based on this, Bose-Einstein condensation (BEC) theory has been generalized to include not boson-boson interactions (also neglected in BCS theory) but rather boson-fermion (BF)interaction vertices reminiscent of the Frohlich electron-phonon interaction in metals. Unlike BCS theory, the GBEC model is not a mean-field theory restricted to weak-coupling as it can be diagonalized exactly. In weak coupling it reproduces the BCS condensation energy. Each kind of CP is responsible for only half the condensation energy. The GBEC theory reduces to all the old known statistical theories as special cases including the so-called "BCS-Bose crossover" picture which in turn generalizes BCS theory by not assuming that the electron chemical potential equals the Fermi energy. Indeed, a BCS condensate is precisely the weak-coupling limit of a GBE condensate with equal numbers of both types of CPs. With feasible Cooper/BCS model interelectonic interaction parameter values, and even without BF interactions, the GBEC theory yields transition temperatures [including room-temperature superconductivity (RTSC)] substantially higher than the BCS ceiling of around 45K, without relying on non-phonon dynamics involving excitons, plasmons, magnons or otherwise purely-electronic mechanisms.
description: 14 pages, 2 figures, Mini-course delivered at "X Training Course in the Physics of Correlated-Electron Systems and High Tc Superconductors" Salerno, Italy, 3-14 October, 2005
INTERGENERATIONAL SUCCESSION IN ISRAELI FAMILY FARMS
Creators: name: Kimhi, Ayal
name: Nachlieli, Noga
name: Kimhi, Ayal
name: Nachlieli, Noga
Publisher: name: Unknown
Year: 1998
Subjects: Farm Management
Institutional and Behavioral Economics

description: We study, using a probit analysis of Israeli data, the likelihood of having a successor on the family farm at a certain point in time. We identify a number of significant family and farm attributes whose effects are consistent with economic theory based on the notion of bargaining between the generations.
Distribution of Topological Types in Grain-Growth Microstructures
Creators: name: Lazar, Emanuel A.
name: Mason, Jeremy K.
name: MacPherson, Robert D.
name: Srolovitz, David J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An open question in studying normal grain growth concerns the asymptotic state to which microstructures converge. In particular, the distribution of grain topologies is unknown. We introduce a thermodynamic-like theory to explain these distributions in two- and three-dimensional systems. In particular, a bending-like energy $E_i$ is associated to each grain topology $t_i$, and the probability of observing that particular topology is proportional to $\frac{1}{s(t_i)}e^{-βE_i}$, where $s(t_i)$ is the order of an associated symmetry group and $β$ is a thermodynamic-like constant. We explain the physical origins of this approach, and provide numerical evidence in support.
description: 6 pages, 5 figures
THE DYNAMICS OF REINTRODUCING, SUPPLEMENTING AND CONTROLLING ENDANGERED PREDATOR POPULATIONS
Creators: name: Rondeau, Daniel
name: Rondeau, Daniel
Publisher: name: Unknown
Year: 1998
Subjects: Environmental Economics and Policy

description: A dynamic model is developed to analyze the reintroduction of endangered predators. Non-convexities and the conditions under which reintroduction is sub-optimal are studied. Following reintroduction, costly population control should be initiated before marginal animals impose net costs, providing an economic interpretation to changes in the sign of the shadow price.
Gaussian fluctuations of characters of symmetric groups and of Young diagrams
Creators: name: Sniady, Piotr
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 05E10; 37F20

description: We study asymptotics of reducible representations of the symmetric groups S_q for large q. We decompose such a representation as a sum of irreducible components (or, alternatively, Young diagrams) and we ask what is the character of a randomly chosen component (or, what is the shape of a randomly chosen Young diagram). Our main result is that for a large class of representations the fluctuations of characters (and fluctuations of the shape of the Young diagrams) are asymptotically Gaussian; in this way we generalize Kerov's central limit theorem. The considered class consists of representations for which the characters almost factorize and this class includes, for example, left-regular representation (Plancherel measure), tensor representations. This class is also closed under induction, restriction, outer product and tensor product of representations. Our main tool in the proof is the method of genus expansion, well known from the random matrix theory.
description: 37 pages; version 3: conceptual change in the proofs
COMMUNITY SUPPORTED AGRICULTURE (CSA): A HYPOTHESIS TEST OF MEMBERSHIP ACTIVITIES AND UTILITY
Creators: name: Kolodinsky, Jane M.
name: Wang, Qingbin
name: Pelch, Leslie
name: Kolodinsky, Jane M.
name: Wang, Qingbin
name: Pelch, Leslie
Publisher: name: Unknown
Year: 1999
Subjects: subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: community supported agriculture (CSA)
subject: household production
subject: Vermont

description: This study examines whether membership activities of Community Supported Agriculture (CSA) farms can yield utility directly. Results based on survey data from Vermont suggest that time spent in picking up produce from a CSA farm and time spent in cleaning and putting away produce at home do yield utility directly and the direct utility from picking up is greater than that from cleaning and putting away.
Toy operads
Creators: name: Paal, Eugen
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Algebra (math.QA)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D50

description: Didactic operadic entertainment for pedestrians. The following visual toys are included: operad of little squares, operad of planar rooted trees, and an operad algebra example.
description: prosper overlays, 4 slides for download
Phytochemicals from Calophyllum macrocarpum Hook.f. and its cytotoxic activities
Creators: name: Thiruventhan Karunakaran
name: Firouz, Noor Syarafana
name: Rameshkumar Santhanam
name: Jong, Vivien Yi Mian
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Species from the Genus Calophyllum are rich source for bioactive phenolic compounds such as coumarins and xanthones. Phytochemical study carried out on the plant, Calophyllum macrocarpum has led to the isolation of three known prenylated xanthones, ananixanthone (1), trapezifolixanthone (2) and 8-deoxygartanin (3) with two common triterpenoids, stigmasterol (4), and friedelin (5). The structures of these compounds were identified and determined using spectroscopic techniques such as NMR and MS. The cytotoxic activities of compounds 1 and 2 as well as the extracts were tested against HeLa Chang liver and HEK-293 cell lines. Compound 1 exhibited appreciable cytotoxicity with the IC50 value of 11.08 ± 3.09 µM against HeLa Chang liver cell line and moderate cytotoxicity against HEK-293 cell line while compound 2 showed limited toxicity against these two cell lines.
SDSSJ212531.92-010745.9 - the first definite PG1159 close binary system
Creators: name: Nagel, T.
name: Schuh, S.
name: Kusterer, D. -J.
name: Stahn, T.
name: Hügelmeyer, S. D.
name: Dreizler, S.
name: Gänsicke, B. T.
name: Schreiber, M. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The archival spectrum of SDSSJ212531.92-010745.9 shows not only the typical signature of a PG1159 star, but also indicates the presence of a companion. Our aim was the proof of the binary nature ofthis object and the determination of its orbital period.We performed time-series photometry of SDSSJ212531.92-010745.9. We observed the object during 10 nights, spread over one month, with the Tuebingen 80cm and the Goettingen 50cm telescopes. We fitted the observed light curve with a sine and simulated the light curve of this system with the nightfall program. Furthermore, we compared the spectrum of SDSSJ212531.92-010745.9 with NLTE models, the results of which also constrain the light curve solution. An orbital period of 6.95616(33)h with an amplitude of 0.354(3)mag is derived from our observations. A pulsation period could not be detected. For the PG1159 star we found, as preliminary results from comparison with our NLTE models, Teff about 90000K, log g about 7.60, and the abundance ratio C/He = 0.05 by number fraction. For the companion we obtained with a mean radius of 0.4 +/- 0.1 Rsol, a mass of 0.4 +/- 0.1 Msol, and a temperature of 8200K on the irradiated side, good agreement between the observed light curve and the nightfall simulation, but we do not regard those values as final.
description: 4 pages, 4 figures to be published in A&A, accepted
Distinct accretion modes of Cygnus X-1 revealed from hard X-rays
Creators: name: Lubiński, Piotr
name: Filothodoros, Alexandros
name: Zdziarski, Andrzej A.
name: Pooley, Guy
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Thanks to recurrent observations of the black hole binary Cyg X-1 carried out over 15 years the INTEGRAL satellite has collected the largest data set in the hard X-ray band for this source. We have analyzed these data, complemented by data collected by other X-ray satellites and radio flux at 15 GHz. To characterize the spectral and variability properties of the system we have examined parameters such as the hard X-ray flux, photon index and fractional variability. Our main result is that the 2D distribution of the photon index and flux determined for the 22-100 keV band forms six clusters. This result, interpreted within the Comptonization scenario as the dominant process responsible for the hard X-ray emission, leads to a conclusion that the hot plasma in Cyg X-1 takes the form of six specific geometries. The distinct character of each of these plasma states is reinforced by their different X-ray and radio variability patterns. In particular, the hardest and softest plasma states show no short-term flux - photon index correlation typical for the four other states, implying a lack of interaction between the plasma and accretion disk. The system evolves between these two extreme states, with the spectral slope regulated by a variable cooling of the plasma by the disk photons.
description: 21 pages, 11 figures, accepted for publication in ApJ
Heinz-Mohr, Gerd, Bahr, Hans-Eckehard: Brüder der Welt
Creators: name: Kg.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 15 Nr. 1 (1966): Ökumenische Rundschau, Band 15, Heft 1
LoDoPaB-CT Challenge Reconstructions compared in "Quantitative comparison of deep learning-based image reconstruction methods for low-dose and sparse-angle CT applications"
Creators: name: Leuschner, Johannes
name: Schmidt, Maximilian
name: Baguer, Daniel Otero
name: Bauer, Dominik
name: Denker, Alexander
name: Hadjifaradji, Amir
name: Tianlin Liu
Publisher: name: Zenodo
Year: 2021

description: Supplementing record containing the LoDoPaB-CT challenge submissions compared in the article "Quantitative comparison of deep learning-based image reconstruction methods for low-dose and sparse-angle CT applications". Below are references for the included methods. cinn: A. Denker et al., 2020, Conditional Normalizing Flows for Low-Dose Computed Tomography Image Reconstruction diptv: D. Otero Baguer et al., 2020, Computed tomography reconstruction using deep image prior and learned reconstruction methods
 (DIVαℓ implementation) fbp: Filtered back-projection
 (ODL implementation) fbpistaunet: T. Liu et al., 2020, Interpreting U-Nets via Task-Driven Multiscale Dictionary Learning
 (Implementation by T. Liu) fbpmsdnet: D. Pelt et al., 2017, A mixed-scale dense convolutional neural network for image analysis
 (Implementation based on msd_pytorch by A. Hendriksen) fbpunet: K. H. Jin et al., 2017, Deep Convolutional Neural Network for Inverse Problems in Imaging
 (DIVαℓ implementation) fbpunetpp: Z. Zhou et al., 2018, UNet++: A Nested U-Net Architecture for Medical Image Segmentation
 (Implementation and network weights by A. Hadjifaradji) ictnet: D. Bauer et al., 2021, iCTU-Net (submitted, based on iCT-Net) learnedpd: J. Adler et al., 2018, Learned Primal-Dual Reconstruction
 (DIVαℓ implementation) tv: Total Variation Regularization
 (DIVαℓ implementation)
Scalable Differentiable Physics for Learning and Control
Creators: name: Qiao, Yi-Ling
name: Liang, Junbang
name: Koltun, Vladlen
name: Lin, Ming C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Graphics (cs.GR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Differentiable physics is a powerful approach to learning and control problems that involve physical objects and environments. While notable progress has been made, the capabilities of differentiable physics solvers remain limited. We develop a scalable framework for differentiable physics that can support a large number of objects and their interactions. To accommodate objects with arbitrary geometry and topology, we adopt meshes as our representation and leverage the sparsity of contacts for scalable differentiable collision handling. Collisions are resolved in localized regions to minimize the number of optimization variables even when the number of simulated objects is high. We further accelerate implicit differentiation of optimization with nonlinear constraints. Experiments demonstrate that the presented framework requires up to two orders of magnitude less memory and computation in comparison to recent particle-based methods. We further validate the approach on inverse problems and control scenarios, where it outperforms derivative-free and model-free baselines by at least an order of magnitude.
OPTIMAL COMPENSATION FOR ENDANGERED SPECIES PROTECTION UNDER ASYMMETRIC INFORMATION
Creators: name: Huennemeyer, Anne-Juliane
name: McKitrick, Ross
name: Rollins, Kimberly S.
name: Huennemeyer, Anne-Juliane
name: McKitrick, Ross
name: Rollins, Kimberly S.
Publisher: name: Unknown
Year: 1999
Subjects: Environmental Economics and Policy
Resource /Energy Economics and Policy

description: This paper argues that policies based on economic instruments are preferable to command and control approaches for effectively protecting biological diversity. This is due to sources of inefficiencies because of informational asymmetries between the regulator and private land users. We propose a principal agent framework to design optimally structured and performance based economic incentives for private land owners.
Studies on the effects of hemoglobin on synaptic transmission in the hippocampus
Creators: name: Yip, Samuel
Publisher: name: University of British Columbia
Year: 2009

description: During head injuries and hemorrhagic stroke, blood is released into the extravascular space. The pooled blood remains in the intracranial cavity for a prolonged period of time. During this time, it has been shown that the pooled erythrocytes get lysed and hemoglobin is released into the intracranial cavities. Since clearance of hemoglobin is slow, neurons may be exposed to hemoglobin and/or its breakdown products, hemin and iron, for long periods of time. It is, therefore, important to understand the effects of hemoglobin and its breakdown products on synaptic transmission. In this study, the electrophysiological actions of these agents on synaptic transmission in rat hippocampal CA1 pyramidal neurons were studied using extracellular field- and whole cell patch-recordings. It was found that commercially available hemoglobin samples produce inconsistent effects on synaptic transmission in hippocampal slices. The commercial hemoglobin which reversibly depressed synaptic transmission in CA1 neurons, was found to be contaminated with ammonium and bisulfate. These agents may be responsible for the observed synaptic depression. Since commercially available hemoglobin contains both methemoglobin and reduced-hemoglobin, the effects of these compounds were studied on synaptic transmission. Methemoglobin had no significant effect on synaptic transmission. Although reduced-hemoglobin, prepared with a method described by Martin et al. (1985), produced a significant reversible depression of synaptic transients, the effects were actually due to the bisulfite that was introduced by the reducing procedure. Unlike hemoglobin, breakdown products of hemoglobin, ferrous chloride and hemin, produced a significant irreversible depression of field excitatory postsynaptic potentials. The importance of these effects of hemoglobin breakdown products in understanding neurological complications that follow head-injuries and hemorrhagic stroke awaits further investigation.
THE EFFECTS OF RISK MANAGEMENT STRATEGIES WITH DIVERSIFIED HOG/CROP PRODUCTION
Creators: name: Nydene, Cory
name: Patrick, George F.
name: Baker, Timothy G.
name: Nydene, Cory
name: Patrick, George F.
name: Baker, Timothy G.
Publisher: name: Unknown
Year: 1999
Subjects: Agribusiness
Risk and Uncertainty

description: Risk management strategies were compared using a corn/soybean farm, a hog farm, and a diversified hog/crop farm. Results suggest risk management tools are more effective in combinations, hog/crop diversification shows limited risk reducing benefits, and the effects of choosing among risk management tools may be overemphasized.
Groebner Bases in Perturbative Calculations
Creators: name: Gerdt, Vladimir P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we outline the most general and universal algorithmic approach to reduction of loop integrals to basic integrals. The approach is based on computation of Groebner bases for recurrence relations derived from the integration by parts method. In doing so we consider generic recurrence relations when propagators have arbitrary integer powers treated as symbolic variables (indices) for the relations.
description: 5 pages
IMPACTS OF THE NORTHEAST INTERSTATE DAIRY COMPACT ON NEW ENGLAND MILK SUPPLY
Creators: name: Nicholson, Charles F.
name: Resosudarmo, Budy P.
name: Wackernagel, Rick
name: Nicholson, Charles F.
name: Resosudarmo, Budy P.
name: Wackernagel, Rick
Publisher: name: Unknown
Year: 1999
Subjects: Agribusiness
Livestock Production/Industries

description: A two-equation random coefficients model is developed to examine the impact of the Northeast Interstate Dairy Compact on cow numbers, milk per cow, and milk production during July 1997 to June 1998. The Compact is estimated to have increased milk production by 1%, primarily due to increased milk per cow.
Strong Lensing and Nonminimally Coupled Electromagnetism
Creators: name: Bergliaffa, Santiago E. P.
name: Filho, Edson Elias de Souza
name: Maier, Rodrigo
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The lensing at large deflection angles caused by a Schwarzschild black hole for the case of a nonminimal coupling between gravitation and electromagnetism is examined. We show that photons follow an effective geometry, which displays an effective photon sphere. For the case in which the source, lens and observer are aligned, so that relativistic Einstein rings are formed, the dependence of the angular separation $δθ$ between the first and second ring with the relevant coupling parameter is calculated. We argue that such a separation, which may be measured by telescopes that will be operative in the near future, may set an upper and a lower limit for the coupling parameter.
COMMUNITY-BUSINESS MATCHING: A NEW MODEL FOR RURAL ECONOMIC DEVELOPMENT
Creators: name: Buescher, Michael
name: Halbrendt, Catherine K.
name: Sullivan, Pauline
name: Zheng, Yi
name: Buescher, Michael
name: Halbrendt, Catherine K.
name: Sullivan, Pauline
name: Zheng, Yi
Publisher: name: Unknown
Year: 1999
Subjects: subject: Community/Rural/Urban Development
subject: Research Methods/ Statistical Methods
subject: Community Assets and Goals
subject: Business Benefits and Needs

description: Identifying target industry sectors for community economic development is a complex problem. The Community-Business Matching (CBM) Model is a tool that assists in identifying desirable industry sectors for sustainable economic development. The framework of the model is based on two measures, "Desirability" and "Compatibility", between a community and industry sectors. A case study of two Vermont communities will be presented.
Quantum trigonometric Calogero-Sutherland model, irreducible characters and Clebsch-Gordan series for the exceptional algebra E7
Creators: name: Nunez, J. Fernandez
name: Fuertes, W. Garcia
name: Perelomov, A. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We re-express the quantum Calogero-Sutherland model for the Lie algebra E7 and the particular value of the coupling constant K=1 by using the fundamental irreducible characters of the algebra as dynamical variables. For that, we need to develop a systematic procedure to obtain all the Clebsch-Gordan series required to perform the change of variables. We describe how the resulting quantum Hamiltonian operator can be used to compute more characters and Clebsch-Gordan series for this exceptional algebra.
description: 37 pages, 1 figure
title: Теория электрических цепей
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование, Ай Пи Ар Медиа
Year: 2021

description: Практикум содержит практические задания и лабораторные работы по основным разделам дисциплины «Теория электрических цепей». Лабораторные работы разработаны с использованием технологии виртуальных приборов в среде программирования Multisim и позволяют закрепить и углубить теоретические знания с помощью проведения экспериментов. Издание нацелено на приобретение практического опыта в исследовании электрических цепей на базе современных технических средств. Подготовлен в соответствии с Федеральным государственным образовательным стандартом среднего профессионального образования. Предназначен для студентов укрупненной группы специальностей 11.00.00 «Электроника, радиотехника и системы связи».
Hot Cores : Probes of High-Redshift Galaxies
Creators: name: Lintott, C. J.
name: Viti, S.
name: Williams, D. A.
name: Rawlings, J. M. C.
name: Ferreras, I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The very high rates of second generation star formation detected and inferred in high redshift objects should be accompanied by intense millimetre-wave emission from hot core molecules. We calculate the molecular abundances likely to arise in hot cores associated with massive star formation at high redshift, using several independent models of metallicity in the early Universe. If the number of hot cores exceeds that in the Milky Way Galaxy by a factor of at least one thousand, then a wide range of molecules in high redshift hot cores should have detectable emission. It should be possible to distinguish between independent models for the production of metals and hence hot core molecules should be useful probes of star formation at high redshift.
description: Updated to correspond to version accepted by MNRAS
Conditional independence by typing
Creators: name: Gorinova, Maria I.
name: Gordon, Andrew D.
name: Sutton, Charles
name: Vákár, Matthijs
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: A central goal of probabilistic programming languages (PPLs) is to separate modelling from inference. However, this goal is hard to achieve in practice. Users are often forced to re-write their models in order to improve efficiency of inference or meet restrictions imposed by the PPL. Conditional independence (CI) relationships among parameters are a crucial aspect of probabilistic models that capture a qualitative summary of the specified model and can facilitate more efficient inference. We present an information flow type system for probabilistic programming that captures conditional independence (CI) relationships, and show that, for a well-typed program in our system, the distribution it implements is guaranteed to have certain CI-relationships. Further, by using type inference, we can statically deduce which CI-properties are present in a specified model. As a practical application, we consider the problem of how to perform inference on models with mixed discrete and continuous parameters. Inference on such models is challenging in many existing PPLs, but can be improved through a workaround, where the discrete parameters are used implicitly, at the expense of manual model re-writing. We present a source-to-source semantics-preserving transformation, which uses our CI-type system to automate this workaround by eliminating the discrete parameters from a probabilistic program. The resulting program can be seen as a hybrid inference algorithm on the original program, where continuous parameters can be drawn using efficient gradient-based inference methods, while the discrete parameters are inferred using variable elimination. We implement our CI-type system and its example application in SlicStan: a compositional variant of Stan.
การศึกษาบทสนทนาการแสดงตลกทางวีดิทัศน์
Creators: name: น้ำเพชร สายบุญเรือน
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 60-77
Equivariant K-theory of affine flag manifolds and affine Grothendieck polynomials
Creators: name: Kashiwara, Masaki
name: Shimozono, Mark
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 19L47, 14M17, 17B67, 22E65

description: We study the equivariant K-group of the affine flag manifold with respect to the Borel group action. We prove that the structure sheaf of the (infinite-dimensional) Schubert variety in the K-group is represented by a unique polynomial, which we call the affine Grothendieck polynomial.
description: 28 pages
Evidence for an ancient sea level on Mars
Creators: name: Saberi, Abbas Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Mars shares many similarities and characteristics to Earth including various geological features and planetary structure. The remarkable bimodal distribution of elevations in both planets is one of the most striking global features suggesting similar geodynamic processes of crustal differentiation on Earth and Mars. There also exist several evidences, based on geographic features resembling ancient shorelines, for existence of an ancient martian ocean in the northern hemisphere which covers nearly one third of the planet's surface. However, the interpretation of some features as ancient shorelines has been thoroughly challenged that left the existence of a primordial martian ocean controversial. Moreover, if oceans were formerly present on Mars, there is still a big ambiguity about the volume of water with the estimations ranging over $4$ orders of magnitude. Here we map the martian sea level problem onto a percolation model that provides strong evidence that the longest iso-height line on Mars that separates the northern and southern hemispheres, acts as a critical level height with divergent correlation length and plays the same role as the present mean sea level does on Earth. Our results unravel remarkable similarities between Mars and Earth, posing a testable hypothesis about the level of the ancient ocean on Mars that can be answered experimentally by the future investigations and spacecraft exploration.
description: 16 pages, 12 figures, to appear in "The Astrophysical Journal Letters"
TESTING THE IMPACT OF CORPORATE FARMING LAWS ON HOG INDUSTRY GROWTH: A PARTIAL ADJUSTMENT APPROACH
Creators: name: Matthey, Holger
name: Royer, Jeffrey S.
name: Matthey, Holger
name: Royer, Jeffrey S.
Publisher: name: Unknown
Year: 1999
Subjects: Agribusiness
Livestock Production/Industries

description: This paper analyzes the impact of corporate restrictions on the growth of the Nebraska hog industry. It utilizes a partial adjustment model to test the hypothesis that the restrictions hamper the development of the state's hog industry. The results support the argument that the regulations have slowed the growth of the Nebraska hog industry.
On the security of the Yen-Guo's domino signal encryption algorithm (DSEA)
Creators: name: Li, Chengqing
name: Li, Shujun
name: Lou, Der-Chyuan
name: Zhang, Dan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Cryptography and Security (cs.CR)
subject: Multimedia (cs.MM)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Recently, a new domino signal encryption algorithm (DSEA) was proposed for digital signal transmission, especially for digital images and videos. This paper analyzes the security of DSEA, and points out the following weaknesses: 1) its security against the brute-force attack was overestimated; 2) it is not sufficiently secure against ciphertext-only attacks, and only one ciphertext is enough to get some information about the plaintext and to break the value of a sub-key; 3) it is insecure against known/chosen-plaintext attacks, in the sense that the secret key can be recovered from a number of continuous bytes of only one known/chosen plaintext and the corresponding ciphertext. Experimental results are given to show the performance of the proposed attacks, and some countermeasures are discussed to improve DSEA.
description: 11 pages, 5 figures
On the Lengths, Colors and Ages of 18 Face-On Bars
Creators: name: Gadotti, Dimitri A.
name: de Souza, Ronaldo E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Along with a brief analysis we present data obtained from BVRI and Ks images of a sample of 19 galaxies (18 barred and 1 unbarred) which will be further explored in a future paper. We measured the lengths and colors of the bars, created color maps and estimated global color gradients. Applying a method developed in a companion paper, we could distinguish for 7 galaxies in our sample those whose bars have been recently formed from the ones with already evolved bars. We estimated an average difference in the optical colors between young and evolved bars that may be translated to an age difference of the order of 10 Gyr, meaning that bars may be, at least in some cases, long standing structures. Moreover, our results show that, on average, evolved bars are longer than young bars. This seems to indicate that, during its evolution, a bar grows longer by capturing stars from the disk, in agreement with recent numerical and analytical results. Although the statistical significance of these results is low, and further studies are needed to confirm them, we discuss the implications from our results on the possibility of bars being a recurrent phenomenon. We also present isophotal contours for all our images as well as radial profiles of relevant photometric and geometric parameters.
description: Accepted for publication in The Astrophysical Journal Supplement; 30 pages, 5 tables, 6 figures; version with online-only and high resolution figures is available at http://www.mpa-garching.mpg.de/~dimitri/18bars.pdf
Towards a determination of the spectrum of QCD using a space-time lattice
Creators: name: Juge, K. J.
name: Lichtl, A.
name: Morningstar, C.
name: Edwards, R. G.
name: Richards, D. G.
name: Basak, S.
name: Wallace, S.
name: Sato, I.
name: Fleming, G. T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Progress by the Lattice Hadron Physics Collaboration in determining the baryon and meson resonance spectrum of QCD using Monte Carlo methods with space-time lattices is described. The extraction of excited-state energies necessitates the evaluation of correlation matrices of sets of operators, and the importance of extended three-quark operators to capture both the radial and orbital structures of baryons is emphasized. The use of both quark-field smearing and link-field smearing in the operators is essential for reducing the couplings of the operators to the high-frequency modes and for reducing statistical noise in the correlators. The extraction of nine energy levels in a given symmetry channel is demonstrated, and identifying the continuum spin quantum numbers of the levels is discussed.
description: 10 pages, 3 figures, 2 tables, plenary talk presented at the International Workshop on the Physics of Excited Baryons (Nstar 2005), October 12-15, 2005, at Tallahassee, Florida, USA
A Mixed Initiative Semantic Web Framework for Process Composition
Creators: name: Rao, Jinghai
name: Dimitrov, Dimitar
name: Hofmann, Paul
name: Sadeh, Norman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Semantic Web technologies offer the prospect of significantly reducing the amount of effort required to integrate existing enterprise functionality in support of new composite processes; whether within a given organization or across multiple ones. A significant body of work in this area has aimed to fully automate this process, while assuming that all functionality has already been encapsulated in the form of semantic web services with rich and accurate annotations. In this article, we argue that this assumption is often unrealistic. Instead, we describe a mixed initiative framework for semantic web service discovery and composition that aims at flexibly interleaving human decision making and automated functionality in environments where annotations may be incomplete and even inconsistent.
AN EQUILIBRIUM ANALYSIS OF THE IMPACT OF ANTIBIOTICS BANS ON INVESTMENT IN APPLE ORCHARDS
Creators: name: Hennessy, David A.
name: Roosen, Jutta
name: Hennessy, David A.
name: Roosen, Jutta
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: antibiotics
subject: apple orchard
subject: dynamics
subject: equilibrium
subject: replanting
subject: resistance
subject: truncated Poisson process

description: The decision to replant a fire blight-susceptible apple orchard is analyzed. Embedding the problem into an equilibrium framework facilitates the welfare analysis of changes in orchard survival probabilities arising from a ban on antibiotics use. We estimate the structural impacts and welfare changes of the ban.
การตาย: ความสัมพันธ์กับประเพณี วัฒนธรรม และ ภาษา
Creators: name: พรทิพย์ ไชยรัตน์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 78-93
Constraints on dark matter and the shape of the Milky Way dark halo from the 511 keV line
Creators: name: Ascasibar, Y.
name: Jean, P.
name: Boehm, C.
name: Knoedlseder, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: About one year ago, it was speculated that decaying or annihilating Light Dark Matter (LDM) particles could explain the flux and extension of the 511 keV line emission in the galactic centre. Here we present a thorough comparison between theoretical expectations of the galactic positron distribution within the LDM scenario and observational data from INTEGRAL/SPI. Unlike previous analyses, there is now enough statistical evidence to put tight constraints on the shape of the dark matter halo of our galaxy, if the galactic positrons originate from dark matter. For annihilating candidates, the best fit to the observed 511 keV emission is provided by a radial density profile with inner logarithmic slope gamma=1.03+-0.04. In contrast, decaying dark matter requires a much steeper density profile, gamma>1.5, rather disfavoured by both observations and numerical simulations. Within the annihilating LDM scenario, a velocity-independent cross-section would be consistent with the observational data while a cross-section purely proportional to v^2 can be rejected at a high confidence level. Assuming the most simplistic model where the galactic positrons are produced as primaries, we show that the LDM candidate should be a scalar rather than a spin-1/2 particle and obtain a very stringent constraint on the value of the positron production cross-section to explain the 511 keV emission. One consequence is that the value of the fine structure constant should differ from that recommended in the CODATA. This is a very strong test for the LDM scenario and an additional motivation in favour of experiments measuring alpha directly. Our results finally indicate that an accurate measurement of the shape of the dark halo profile could have a tremendous impact on the determination of the origin of the 511 keV line and vice versa.
description: 11 pages, 4 figures, submitted to MNRAS
มองสังคมไทยผ่านนิทานคำกลอนของสุนทรภู่
Creators: name: ประคอง เจริญจิตรกรรม
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 94-108