cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sparse Sachdev-Ye-Kitaev model, quantum chaos and gravity duals
Creators: name: García-García, Antonio M.
name: Jia, Yiyang
name: Rosa, Dario
name: Verbaarschot, Jacobus J. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study a sparse Sachdev-Ye-Kitaev (SYK) model with $N$ Majoranas where only $\sim k N$ independent matrix elements are non-zero. We identify a minimum $k \gtrsim 1$ for quantum chaos to occur by a level statistics analysis. The spectral density in this region, and for a larger $k$, is still given by the Schwarzian prediction of the dense SYK model, though with renormalized parameters. Similar results are obtained for a beyond linear scaling with $N$ of the number of non-zero matrix elements. This is a strong indication that this is the minimum connectivity for the sparse SYK model to still have a quantum gravity dual. We also find an intriguing exact relation between the leading correction to moments of the spectral density due to sparsity and the leading $1/d$ correction of Parisi's U(1) lattice gauge theory in a $d$ dimensional hypercube. In the $k \to 1$ limit, different disorder realizations of the sparse SYK model show emergent random matrix statistics that for fixed $N$ can be in any universality class of the ten-fold way. The agreement with random matrix statistics is restricted to short range correlations, no more than a few level spacings, in particular in the tail of the spectrum. In addition, emergent discrete global symmetries in most of the disorder realizations for $k$ slightly below one give rise to $2^m$-fold degenerate spectra, with $m$ being a positive integer. For $k =3/4$, we observe a large number of such emergent global symmetries with a maximum $2^8$-fold degenerate spectra for $N = 26$.
description: 48 pages, 26 figures
The Disc Amplitude of the Dijkgraaf-Vafa Theory:1/N Expansion vs Complex Curve Analysis
Creators: name: Aoyama, Shogo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: According to Dijkgraaf and Vafa the effective glueball superpotential of the N=1 supersymmetric QCD coupled with an adjoint chiral multiplet is given by the planar amplitude in the 1/N expansion of a matrix model. It was shown that, when the N=1 supersymmetric QCD is coupled with fundamental chiral multiplets as well, the effective glueball superpotential is modified by the disc amplitude of the generalized matrix model. The diagramatic computation of this disc amplitude is fairly involved for the multi-cut solution. Instead we compute it with recourse to the complex analysis of the hyperelliptic curve. The result is given in series of the gluino condensation S_i. The explicit computation for the generic multi-cut solution is done up to order S^3. It is systematic so that it can be extended to higher orders.
description: 14 pages, 1 figure; v2: a note and a reference added, typos corrected
Participatory Prospective Analysis: Exploring and Anticipating Challenges with Stakeholders
Creators: name: Bourgeois, Robin
name: Jesus, Franck
name: Bourgeois, Robin
name: Jesus, Franck
Publisher: name: Unknown
Year: 2004
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: decision making
subject: analytical methods
subject: tools

description: Part I The Participatory Prospective Analysis (PPA) Method The philosophy of the PPA method Methodological components Presentation of the method Definition of the system's limits Identification of variables Selection and definition of key variables Mutual influence analysis Interpretation of influence/dependence links Definition of the states of variables Building scenarios Using scenarios Implementing the PPA Equipment and resources Organizing group work The question of experts and expertise Part II The PPA Method at Work: The Case of Secondary Crop Research and Development Prospects in Asia and the Pacific Context Organization of the PPA System identification Creation of a working group and workshop organization Process and results Identification of key variables Influence/dependence analysis Building scenarios Analysis of implications Conclusion Key Words: decision making, analytical methods, tools
An investigation of the mechanism of UDP-glucose dehydrogenase
Creators: name: Penney, Lisa C.
Publisher: name: University of British Columbia
Year: 2009

description: UDP-glucose dehydrogenase (UDPGluDH) is an NAD⁺-dependent enzyme that catalyzes the two-fold oxidation of UDP-glucose to UDP-glucuronic acid. This enzyme is interesting in that its single active site carries out two sequential oxidations, whereas the majority of NAD⁺ - dependent dehydrogenases catalyze only a single oxidation step. Bacterial UDPGluDH is necessary for the formation of an antiphagocytic capsule that protects many virulent strains from the host's immune system. It has been determined that the enzymatic mechanism proceeds through covalent catalysis using an active site cysteine residue. Hydrolysis of the resulting thioester intermediate generates the UDP-glucuronic acid product. The structure of wild-type UDPGluDH has been previously elucidated in our laboratory. This allowed residues that may be important in the enzyme's catalytic mechanism to be identified and several mutant forms of the enzyme to be constructed. Three of these mutants - Thrll8Ala, Glul41Gln, and Glul45Gln - have been purified to homogeneity and their K[sub m] and K[sub cat] values have been determined. It was found that the k[sub cat] value of the Thr118Ala UDPGluDH was reduced by a factor of 100 when compared to that of the wild-type enzyme. When this mutant enzyme was incubated with UDP-(6,6-di-²H)glucose, the value of k[sub H]/k[sub D] was determined to be 1.9 ± 0.1, indicating that a C-H bond is broken in the enzyme's rate-determining step. This differs from previously obtained results using the wild-type enzyme, in which it was found that the hydride transfer steps were not rate-limiting. Thus, it appears that Thr118 plays a more important role in one or both of the hydride transfer steps of the enzymatic mechanism than in the hydrolysis of the thioester intermediate.
Multi-fluid shocks in clusters of galaxies: entropy, sigma_ v-T, M-T and L_x-T scalings
Creators: name: Bykov, A. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The nonthermal phenomena in clusters of galaxies are considered in the context of the hierarchical model of cosmic structure formation by accretion and merging of the dark matter (DM) substructures.Accretion and merging processes produce large-scale gas shocks. The plasma shocks are expected to be collisionless. In the course of cluster's aggregation, the shocks, being the main gas-heating agent, generate turbulent magnetic fields and accelerate energetic particles via collisionless multi-fluid plasma relaxation processes. The intracluster gas heating and entropy production rate by a collisionless shock may differ significantly from that in a single-fluid collisional shock. Simple scaling relations for postshock ion temperature and entropy as functions of shock velocity in strong collisionless multi-fluid shocks are presented. We show that the multi-fluid nature of the collisionless shocks results in high gas compression, reduced entropy production and modified sigma_v-T, M-T and L_x-T scalings. The scaling indexes estimated for a simple model of a strong accretion multi-fluid shock are generally consistent with observations. Soft X-ray and extreme ultraviolet photons dominate the emission of strong accretion shock precursors that appear as large-scale filaments. Magnetic fields, turbulence and energetic particles constitute the nonthermal components contributing into the pressure balance, energy transport and emission of clusters. Nonthermal emission of energetic particles could be a test to constrain the cluster properties.
description: 19 pages, Invited talk at COSPAR Symposium "Clusters of Galaxies: New Insights from XMM-Newton, Chandra and INTEGRAL", Paris (France), 2004, accepted for publication in Advances in Space Research
Learned Pre-Processing for Automatic Diabetic Retinopathy Detection on Eye Fundus Images
Creators: name: Smailagic, Asim
name: Sharan, Anupma
name: Costa, Pedro
name: Galdran, Adrian
name: Gaudio, Alex
name: Campilho, Aurélio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Diabetic Retinopathy is the leading cause of blindness in the working-age population of the world. The main aim of this paper is to improve the accuracy of Diabetic Retinopathy detection by implementing a shadow removal and color correction step as a preprocessing stage from eye fundus images. For this, we rely on recent findings indicating that application of image dehazing on the inverted intensity domain amounts to illumination compensation. Inspired by this work, we propose a Shadow Removal Layer that allows us to learn the pre-processing function for a particular task. We show that learning the pre-processing function improves the performance of the network on the Diabetic Retinopathy detection task.
description: Accepted to International Conference on Image Analysis and Recognition ICIAR 2019 Published at https://doi.org/10.1007/978-3-030-27272-2_32
Additional file 1 of Association between dietary patterns and prediabetes risk in a middle-aged Chinese population
Creators: name: Shen, Xiao-Ming
name: Huang, Yi-Qian
name: Zhang, Xiao-Yan
name: Tong, Xiao-Qing
name: Zheng, Pei-Fen
name: Shu, Long
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Table S1. Food grouping used in the dietary pattern analysis.
Reconciling Actors' Preferences in Agricultural Policy - Towards a New Management of Public Decisions
Creators: name: Jesus, Franck
name: Bourgeois, Robin
name: Jesus, Franck
name: Bourgeois, Robin
Publisher: name: Unknown
Year: 2003
Subjects: subject: Agricultural and Food Policy
subject: analytical methods
subject: tools
subject: decision making
subject: agricultural policies

description: To attain sustainable development in the 21st century, the world's population still has to overcome many challenges; hunger, poverty, environmental degradation and depletion. Policy design in such a context is and will remain a complex task. On one hand, policy makers often lack information on stakeholders' strategies and constraints as well as on potential options for improvement. On the other hand, stakeholders do not always adhere to policies for lack of understanding of the pursued goals. It is not unusual to observe that often, real policy effects are not those initially expected. Furthermore, existing decision-making mechanisms for public intervention are increasingly questioned due to pressure for market liberalization, decentralization processes and the increasing role of the civil society. However, while the classical role of government is challenged, few methods have been proposed to enable the design of viable alternatives. The approach presented in this book is a contribution to the improvement of efficiency in public decision-making. Based on practical experience from Viet Nam, Indonesia and other countries, it proposes new methods for the identification of policy objective, stakeholders and issues at stake, and for the definition and implementation of concrete actions. It also provides means and guidance to foster progressive actors' participation and involvement in decision-making and policy implementation processes. Key Words: analytical methods, tools, decision making, agricultural policies
The Jacobian Conjecture is stably equivalent to the Dixmier Conjecture
Creators: name: Belov-Kanel, Alexei
name: Kontsevich, Maxim
Publisher: name: arXiv
Year: 2005
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14R15, 16H05, 13N10

description: The Jacobian conjecture in dimension $n$ asserts that any polynomial endomorphism of $n$-dimensional affine space over a field of zero characteristic, with the Jacobian equal 1, is invertible. The Dixmier conjecture in rank $n$ asserts that any endomorphism of the $n$-th Weyl algebra (the algebra of polynomial differential operators in $n$ variables) is invertible. We prove that the Jacobian conjecture in dimension $2n$ implies the Dixmier conjecture in rank $n$. Together with a well-known implication in the opposite direction, it shows that the stable Jacobian and Dixmier conjectures are equivalent. The main tool of the proof is the reduction to finite characteristic. After the paper was finished we have learned that the main result was already published by Y.Tsuchimoto in Osaka Journal of Mathematics Volume 42, Number 2 (June 2005). His proof is different.
description: 12 pages
Microwave coherent spectroscopy of ultracold thulium atoms
Creators: name: Pershin, D. A.
name: Yaroshenko, V. V.
name: Tsyganok, V. V.
name: Khlebnikov, V. A.
name: Davletov, E. T.
name: Shaykin, D. V.
name: Gadylshin, E. R.
name: Cojocaru, I. S.
name: Svechnikov, E. L.
name: Kapitanova, P. V.
name: Akimov, A. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Recently, the thulium atom was cooled down to the Bose-Einstein condensation temperature, thus opening a pathway to quantum simulation with this atom. However, successful simulations require instruments to control and readout states of the atom as well as the ability to control the interaction between either different species or different states of the same type of species. In this paper, we provide an experimental demonstration of high-fidelity (over 93%) manipulation of the ground state magnetic sublevels of thulium, which utilizes a simple and efficient design of a microwave (MW) antenna. The coherence time and dephasing rate of the energetically highest hyperfine level of the ground state were also examined.
Additional file 1 of Arterial stiffness can occur early in mild-to-moderate chronic obstructive pulmonary disease
Creators: name: Mansour, Waleed
name: El-Shabrawy, Mohamed
name: Khalil, Wael A.
name: Eldamanhory, Ahmad S.
name: Embarak, Sameh
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1.
SWINE '95 PART I: REFERENCE OF 1995 SWINE MANAGEMENT PRACTICES
Creators: name: Bush, Eric J.
name: Bush, Eric J.
Publisher: name: Unknown
Year: 1995
Subjects: subject: Livestock Production/Industries
subject: NAHMS
subject: swine
subject: monitoring
subject: epidemiology
subject: production
subject: nursery
subject: grower/finisher
subject: mortality
subject: weaning
subject: disease
subject: breeding
subject: facilities
subject: waste management
subject: manure
subject: vaccination
subject: biosecurity
subject: environment
subject: carcass disposal

description: This report is the first of a three-part release of national information from the second National Animal Health Monitoring System (NAHMS) swine study, the Swine '95 Grower/Finisher. The first national study, 1990 National Swine Survey, focused on farrowing sows and preweaning piglets. For the Swine '95 Study, the USDA's National Agricultural Statistics Service (NASS) collaborated with Veterinary Services (VS) to select a producer sample that was statistically designed to provide inferences to the nation's swine population. Data for this report were collected from 1,477 producers in sixteen major pork production states, accounting for nearly 91 percent of the U.S. hog inventory and nearly three fourths of U.S. pork producers. By percent of pigs contained, total confinement facilities were the most widely utilized. The most widespread production phase among operations was grower/finisher, which was present on 86 percent of operations. Forty percent of grower/finisher pig deaths were due to respiratory problems. The mean number of piglets born per litter was approximately 10, with 93 percent born alive. Preweaning deaths due to scours varied slightly by season, accounting for 13 percent of deaths from December to February, versus 19 percent from March to May. Larger operations were more likely to wean pigs at a younger age, with 71 percent of operations of 10,000 head or more weaning at 16-20 days, versus 48 percent of all operations weaning at 35 or more days. Over 60 percent of operations treated piglets before or at weaning with iron supplements, antibiotics in feed, dewormer, or mange/lice treatment. Use of vaccinations against porcine reproductive and respiratory syndrome increased with herd size. Eighty-eight percent of operations marketed their own animals. Contact for this paper: Eric Bush
Multipartite entangled state representation and its squeezing transformation
Creators: name: Albeverio, Sergio
name: Fei, Shao-Ming
name: Song, Tong-qiang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The multipartite entangled state $|p,ξ_2,ξ_2,...,ξ_n>$ for the total momentum and relative coordinates of n particles is constructed. The corresponding quantum mechanical operator with respect to the classical transformation $p\to e^{λ_1} p$, $ξ_i\to e^{λ_i} ξ_i$, $i=1,...,n$, in the state $|p,ξ_2,ξ_2,...,ξ_n>$ is investigated.
description: 13 pages
Quantization and Asymptotic Behaviour of $ε_{V^{k}}$ Quantum Random Walk on Integers
Creators: name: Ellinas, Demosthenes
name: Smyrnakis, Ioannis
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantization and asymptotic behaviour of a variant of discrete random walk on integers are investigated. This variant, the $ε_{V^{k}}$ walk, has the novel feature that it uses many identical quantum coins keeping at the same time characteristic quantum features like the quadratically faster than the classical spreading rate, and unexpected distribution cutoffs. A weak limit of the position probability distribution (pd) is obtained, and universal properties of this arch sine asymptotic distribution function are examined. Questions of driving the walk are investigated by means of a quantum optical interaction model that reveals robustness of quantum features of walker's asymptotic pd, against stimulated and spontaneous quantum noise on the coin system.
description: 11 pages, no figures Submitted to Proc. of 3rd NEXT Sigma-Phi, Kolymbari Aug. 2005, Eds. G. Kaniadakis, A. Carbone, M. Lissia
Discontinuous and Smooth Depth Completion with Binary Anisotropic Diffusion Tensor
Creators: name: Yao, Yasuhiro
name: Roxas, Menandro
name: Ishikawa, Ryoichi
name: Ando, Shingo
name: Shimamura, Jun
name: Oishi, Takeshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We propose an unsupervised real-time dense depth completion from a sparse depth map guided by a single image. Our method generates a smooth depth map while preserving discontinuity between different objects. Our key idea is a Binary Anisotropic Diffusion Tensor (B-ADT) which can completely eliminate smoothness constraint at intended positions and directions by applying it to variational regularization. We also propose an Image-guided Nearest Neighbor Search (IGNNS) to derive a piecewise constant depth map which is used for B-ADT derivation and in the data term of the variational energy. Our experiments show that our method can outperform previous unsupervised and semi-supervised depth completion methods in terms of accuracy. Moreover, since our resulting depth map preserves the discontinuity between objects, the result can be converted to a visually plausible point cloud. This is remarkable since previous methods generate unnatural surface-like artifacts between discontinuous objects.
description: 8 pages 6 figures
Additional file 2 of Association between dietary patterns and prediabetes risk in a middle-aged Chinese population
Creators: name: Shen, Xiao-Ming
name: Huang, Yi-Qian
name: Zhang, Xiao-Yan
name: Tong, Xiao-Qing
name: Zheng, Pei-Fen
name: Shu, Long
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Table S2. Factor-loading matrix for the three dietary patterns*.
CHAPA, BEEF COW/CALF HEALTH AND PRODUCTIVITY AUDIT, PART I: BEEF COW/CALF HERD MANAGEMENT PRACTICES IN THE UNITED STATES
Creators: name: Dargatz, David
name: Dargatz, David
Publisher: name: Unknown
Year: 1993
Subjects: subject: Livestock Production/Industries
subject: NAHMS
subject: epidemiology
subject: beef cattle
subject: calves breeding
subject: artificial insemination
subject: mortality
subject: branding
subject: injections
subject: castration
subject: weaning

description: As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. Data for Part 1: Beef Cow/Calf Herd Management Practices in the United States, were collected from beef producers September 29 through October 9, 1992. The National Agricultural Statistics Service (NASS) collaborated with VS to select a statistically designed producer sample that represented all U.S. cow/calf operations in the 48 continental United States. Eighty-one percent of operations had commercial cattle only. Approximately 92 percent of cows that were exposed to a bull or artificially inseminated gave birth to calves. Two percent of calves born to cows died prior to 3 weeks of age; four percent of calves born to replacement heifers died prior to 3 weeks of age. Five percent of calves developed scours prior to weaning. Fifty-nine percent of cows were on operations using branding or other overall herd identification. For operations using branding, 49 percent branded on the upper hip. Seventy-nine percent of cows were on operations where preventive injections had been given by the operator or a worker within the last 12 months. The main site for intramuscular injections was the upper hip (24 percent of cows); the main site for subcutaneous injections was the neck (42 percent of cows). Eighty-one percent of male calves were castrated before sale. The most frequently practiced method of castration was surgical removal of the testicle (54 percent of operations). Twenty-nine percent of calves were horned (nonpolled); seventy-one percent of these were dehorned. The average weaning age of calves was 214 days. Contact for this paper: David Dargatz
ลักษณะการเสนอสารในข้อความโฆษณาในหนังสือพิมพ์ภาษาไทยระหว่าง พ.ศ. 2387-2487
Creators: name: พรทิพย์ เฉิดฉินนภา
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2002
Subjects: -

description: วรรณวิทัศน์, 2, พฤศจิกายน, 137-147
Investigating Ca II emission in the RS CVn binary ER Vulpeculae using the Broadening Function Formalism
Creators: name: Shkolnik, Evgenya
name: Walker, Gordon
name: Rucinski, Slavek
name: Bohlender, David
name: Davidge, Tim
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The synchronously rotating G stars in the detached, short-period (0.7 d), partially eclipsing binary, ER Vul, are the most chromospherically active solar-type stars known. We have monitored activity in the Ca II H & K reversals for almost an entire orbit. Rucinski's Broadening Function Formalism allows the photospheric contribution to be objectively subtracted from the highly blended spectra. The power of the BF technique is also demonstrated by the good agreement of radial velocities with those measured by others from less crowded spectral regions. In addition to strong Ca II emission from the primary and secondary, there appears to be a high-velocity stream flowing onto the secondary where it stimulates a large active region on the surface 30 - 40 degrees in advance of the sub-binary longitude. A model light curve with a spot centered on the same longitude also gives the best fit to the observed light curve. A flare with approximately 13% more power than at other phases was detected in one spectrum. We suggest ER Vul may offer a magnified view of the more subtle chromospheric effects synchronized to planetary revolution seen in certain `51 Peg'-type systems.
description: Accepted to AJ; 17 pages and 16 figures
On the optimality of upper estimates near blow-up in quasilinear Keller--Segel systems
Creators: name: Fuest, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B40 (primary), 35K40, 35K65, 92C17 (secondary)

description: Solutions $(u, v)$ to the chemotaxis system \begin{align*} \begin{cases} u_t = \nabla \cdot ( (u+1)^{m-1} \nabla u - u (u+1)^{q-1} \nabla v), \\ τv_t = Δv - v + u \end{cases} \end{align*} in a ball $Ω\subset \mathbb R^n$, $n \ge 2$, wherein $m, q \in \mathbb R$ and $τ\in \{0, 1\}$ are given parameters with $m - q > -1$, cannot blow up in finite time provided $u$ is uniformly-in-time bounded in $L^p(Ω)$ for some $p > p_0 := \frac n2 (1 - (m - q))$. For radially symmetric solutions, we show that, if $u$ is only bounded in $L^{p_0}(Ω)$ and the technical condition $m > \frac{n-2 p_0}{n}$ is fulfilled, then, for any $α> \frac{n}{p_0}$, there is $C > 0$ with \begin{align*} u(x, t) \leq C |x|^{-α} \qquad \text{for all $x \in Ω$ and $t \in (0, T_{\max})$}, \end{align*} $T_{\max} \in (0, \infty]$ denoting the maximal existence time. This is essentially optimal in the sense that, if this estimate held for any $α< \frac{n}{p_0}$, then $u$ would already be bounded in $L^{p}(Ω)$ for some $p > p_0$. Moreover, we also give certain upper estimates for chemotaxis systems with nonlinear signal production, even without any additional boundedness assumptions on $u$. The proof is mainly based on deriving pointwise gradient estimates for solutions of the Poisson or heat equation with a source term uniformly-in-time bounded in $L^{p_0}(Ω)$.
description: 19 pages
Reisediplomatie am Roten Meer im 17. Jahrhundert
Creators: name: Kropp, Manfred
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 73 (1989): Oriens christianus, Band 73
Electron scattering in atomic force microscopy experiments
Creators: name: Zotti, Linda
name: Hofer, Werner A.
name: Giessibl, Franz J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It has been shown that electron transitions, as measured in a scanning tunnelling microscope (STM), are related to chemical interactions in a tunnelling barrier. Here, we show that the shape and apparent height of subatomic features in an atomic force microscopy (AFM) experiment on Si(111) depend directly on the available electron states of the silicon surface and the silicon AFM tip. Simulations and experiments confirm that forces and currents show similar subatomic variations for tip-sample distances approaching the bulk bonding length.
description: 5 pages and 4 figures
Structural and Financial Characteristics of U.S. Farms, 1995: 20th Annual Family Farm Report to Congress
Creators: name: Sommer, Judith E.
name: Hoppe, Robert A.
name: Green, Robert C.
name: Korb, Penelope J.
name: Sommer, Judith E.
name: Hoppe, Robert A.
name: Green, Robert C.
name: Korb, Penelope J.
Publisher: name: Unknown
Year: 1998
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: farm structure
subject: farm income
subject: financial performance
subject: farm management
subject: farm business
subject: government payments
subject: farm loans
subject: computer use
subject: minority farmers
subject: female farm operators
subject: farm operator household
subject: family farm
subject: small farm

description: National average statistics related to farm production mask the diversity in the Nation's 2 million farms and the people who operate them. Farms in the United States differ not only by size (sales and acres) and type of production, but also by organizational characteristics (land ownership, legal organization, contracting arrangements) and financial characteristics (debt, assets, income, expenditures). Farm operators and their households vary with respect to demographic characteristics (occupation, age, education), financial characteristics (dependence on farm income, operator/spouse labor allocation), and management characteristics (information sources, business goals).
ความคิดเห็นเกี่ยวกับวิธีการบัญญัติศัพท์
Creators: name: เยาวลักษณ์ กระแสสินธุ์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2002
Subjects: -

description: วรรณวิทัศน์, 2, พฤศจิกายน, 148-153
Improving Lesion Segmentation for Diabetic Retinopathy using Adversarial Learning
Creators: name: Xiao, Qiqi
name: Zou, Jiaxu
name: Yang, Muqiao
name: Gaudio, Alex
name: Kitani, Kris
name: Smailagic, Asim
name: Costa, Pedro
name: Xu, Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Diabetic Retinopathy (DR) is a leading cause of blindness in working age adults. DR lesions can be challenging to identify in fundus images, and automatic DR detection systems can offer strong clinical value. Of the publicly available labeled datasets for DR, the Indian Diabetic Retinopathy Image Dataset (IDRiD) presents retinal fundus images with pixel-level annotations of four distinct lesions: microaneurysms, hemorrhages, soft exudates and hard exudates. We utilize the HEDNet edge detector to solve a semantic segmentation task on this dataset, and then propose an end-to-end system for pixel-level segmentation of DR lesions by incorporating HEDNet into a Conditional Generative Adversarial Network (cGAN). We design a loss function that adds adversarial loss to segmentation loss. Our experiments show that the addition of the adversarial loss improves the lesion segmentation performance over the baseline.
description: Accepted to International Conference on Image Analysis and Recognition, ICIAR 2019. Published at https://doi.org/10.1007/978-3-030-27272-2_29 Code: https://github.com/zoujx96/DR-segmentation
คำเลี่ยง
Creators: name: สังวาลย์ คงจันทร์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2002
Subjects: -

description: วรรณวิทัศน์, 2, พฤศจิกายน, 154-158
On the Asymptotic Dynamics of a Quantum System Composed by Heavy and Light Particles
Creators: name: Adami, Riccardo
name: Figari, Rodolfo
name: Finco, Domenico
name: Teta, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q05; 81U99

description: We consider a non relativistic quantum system consisting of $K$ heavy and $N$ light particles in dimension three, where each heavy particle interacts with the light ones via a two-body potential $αV$. No interaction is assumed among particles of the same kind. Choosing an initial state in a product form and assuming $α$ sufficiently small we characterize the asymptotic dynamics of the system in the limit of small mass ratio, with an explicit control of the error. In the case K=1 the result is extended to arbitrary $α$. The proof relies on a perturbative analysis and exploits a generalized version of the standard dispersive estimates for the Schrödinger group. Exploiting the asymptotic formula, it is also outlined an application to the problem of the decoherence effect produced on a heavy particle by the interaction with the light ones.
description: 38 pages
Rural and Urban Manufacturing Workers: Similar Problems, Similar Challenges: Results of the ERS Rural Manufacturing Survey
Creators: name: Teixeira, Ruy
name: Teixeira, Ruy
Publisher: name: Unknown
Year: 1998
Subjects: Community/Rural/Urban Development
Labor and Human Capital

description: Low skill levels among rural workers put rural manufacturing at a competitive disadvantage, according to the "skills shortage" theory. Data from the ERS Rural Manufacturing Survey, conducted in 1996, suggest that is not happening. Skill requirements are rising, but manufacturers who reported major problems finding workers with specific skills were relatively rare, among both rural and urban firms. Moreover, the most common problem was in finding reliable workers with an acceptable work attitude, traits not usually considered skills and difficult to address through typical skill development programs. But the survey data also suggest a critical skills challenge for rural areas. Among high adopters of new technologies and management practices, the demand for computer, interpersonal teamwork, problem-solving and other "new" skills is rising exceptionally rapidly. Such firms are much more likely than others to report major problems finding adequately skilled workers (although the problem is no greater in rural areas than in urban). This suggests that, in the long run, rural participation in the new economy depends less on remedial skill training for rural workers than on helping them acquire cutting-edge new skills.
Characteristics and Risk Management Needs of Limited-Resource and Socially Disadvantaged Farmers
Creators: name: Dismukes, Robert
name: Harwood, Joy L.
name: Bentley, Susan E.
name: Dismukes, Robert
name: Harwood, Joy L.
name: Bentley, Susan E.
Publisher: name: Unknown
Year: 1997
Subjects: subject: Farm Management
subject: Risk and Uncertainty
subject: risk management
subject: crop insurance
subject: limited-resource farmers
subject: limited-opportunity farmers
subject: small farms
subject: socially disadvantaged farmers

description: Small U.S. farms and those run by socially disadvantaged minority operators tend not to purchase insurance or to participate in insurance-type programs operated by USDA. This report traces the lack of use of such risk management measures to several characteristics of such farmers, who include females, blacks, American Indians, Asian/Pacific Islanders, and operators of Spanish origin. These farmers tend, more than the typical U.S. farm, to raise livestock rather than crops, and there are no government-sponsored insurance-type programs for livestock.
Additional file 2 of Need and inequality in the use of health care services in a fragmented and decentralized health system: evidence for Argentina
Creators: name: Palacios, Alfredo
name: Espinola, Natalia
name: Rojas-Roque, Carlos
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Figure S1. Decomposition of the Erreygers concentration index (ECI).
Farm Resource Regions
Creators: name: Heimlich, Ralph E.
name: Heimlich, Ralph E.
Publisher: name: Unknown
Year: 2000
Subjects: Farm Management

description: ERS recently constructed a new set of regions depicting geographic specialization in production of U.S. farm commodities. ERS will use the new regions to display results of its analyses in a broad array of venues from briefings to publications, our web site, and journal articles. This pamphlet introduces the new ERS Farm Resource Regions, explains their origin and rationale, and serves as a reference for our clients.
Ein pseudepigraphischer Actaschluß in der äthiopischen Version
Creators: name: Uhlig, Siegbert
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 73 (1989): Oriens christianus, Band 73
Bivariate Galaxy Luminosity Functions in the Sloan Digital Sky Survey
Creators: name: Ball, Nicholas M
name: Loveday, Jon
name: Brunner, Robert J
name: Baldry, Ivan K
name: Brinkmann, Jon
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Bivariate luminosity functions (LFs) are computed for galaxies in the New York Value-Added Galaxy Catalogue, based on the Sloan Digital Sky Survey Data Release 4. The galaxy properties investigated are the morphological type, inverse concentration index, Sersic index, absolute effective surface brightness, reference frame colours, absolute radius, eClass spectral type, stellar mass and galaxy environment. The morphological sample is flux-limited to galaxies with r < 15.9 and consists of 37,047 classifications to an RMS accuracy of +/- half a class in the sequence E, S0, Sa, Sb, Sc, Sd, Im. These were assigned by an artificial neural network, based on a training set of 645 eyeball classifications. The other samples use r < 17.77 with a median redshift of z ~ 0.08, and a limiting redshift of z < 0.15 to minimize the effects of evolution. Other cuts, for example in axis ratio, are made to minimize biases. A wealth of detail is seen, with clear variations between the LFs according to absolute magnitude and the second parameter. They are consistent with an early type, bright, concentrated, red population and a late type, faint, less concentrated, blue, star forming population. This bimodality suggests two major underlying physical processes, which in agreement with previous authors we hypothesize to be merger and accretion, associated with the properties of bulges and discs respectively. The bivariate luminosity-surface brightness distribution is fit with the Choloniewski function (a Schechter function in absolute magnitude and Gaussian in surface brightness). The fit is found to be poor, as might be expected if there are two underlying processes.
description: Major changes to match MNRAS accepted version: updated to SDSS Data Release 4, added completeness maps, and lengthened text. 26 pages, 20 figures
How Will the Phaseout of Federal Estate Taxes Affect Farmers?
Creators: name: Durst, Ron L.
name: Monke, James D.
name: Maxwell, Douglas L.
name: Durst, Ron L.
name: Monke, James D.
name: Maxwell, Douglas L.
Publisher: name: Unknown
Year: 2002
Subjects: Agricultural Finance
Public Economics

description: Concern among policymakers that the Federal estate tax might force the liquidation of some family farms has resulted in the enactment of a variety of special provisions over the years. Providing relief to farmers and other small business owners was the primary impetus for the 1997 changes to Federal estate and gift tax policies and a major objective of the 2001 law that will phase out and eventually repeal the Federal estate tax. While only about 4 percent of all farm estates owe Federal estate taxes, a much larger percentage of farm estates must file an estate tax return, make use of special farm provisions, alter their business practices, or engage in costly estate planning in order to reduce the impact of the estate tax on their farm business. Thus, the phase-out and repeal of the Federal estate tax will affect a much broader group of farmers than just those who owe tax.
Influence of Striction Effects on the Multicritical Behavior of Homogeneous Systems
Creators: name: Belim, S. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A field-theoretical description of the behavior of homogeneous, elastically isotropic, compressible systems characterized by two order parameters at the bicritical and tetracritical points is presented. For three-dimensional Ising-like systems, a similar description is performed in the two-loop approximation in three dimensions. The renormalization group equations are analyzed, and fixed points corresponding to different types of multicritical behavior are determined. It is shown that the effect of elastic strains causes a change from a bicritical behavior to a tetracritical one and leads to the appearance of a wide variety of multicritical points.
description: 3 pages
The catalytic mechanism of retaining [beta]-glycosidases
Creators: name: Vocaldo, David J.
Publisher: name: University of British Columbia
Year: 2009

description: Through the detailed characterization of the catalytic mechanisms of four different retaining β-glycosidases and in consideration of the existing literature a detailed and generally applicable catalytic mechanism is proposed for the very large class of retaining β -glycosidases. The catalytic mechanism of the family 39 β -xylosidase (XynB) from Thermoanaerobacterium saccharolyticum is found to proceed through a covalent xylosyl enzyme intermediate flanked by oxocarbenium ion-like transition states. The exo- β -hexosaminidase from Streptomyces plicatus (SpHex) is demonstrated to use a mechanism involving anchimeric assistance from the 2-acetamido moiety of the substrate. The mechanism of this enzyme and, by extension, other family 20 enzymes proceeds through a bicyclic oxazoline intermediate. The functionally related exo- β - hexosaminidase from Vibrio furnisii (ExoII) employs a double-displacement mechanism proceeding through a covalent glycosyl enzyme intermediate. Despite the differences in the nature of the catalytic nucleophile and intermediate the reactions catalyzed by both these two enzymes involve transition states that are remarkable similar to each other, being highly dissociative, with significant oxocarbenium ion character. Lastly, the nature of the contentious intermediate in the hen egg white lysozyme-catalyzed hydrolysis of glycosides is investigated. In three different cases using electrospray ionization mass spectrometry, a catalytically competent covalent glycosyl enzyme intermediate is revealed during the catalytic cycle of HEWL. The three-dimensional structure of this intermediate is also determined by X-ray diffraction analysis. These studies point to the nature of the intermediate in the hydrolysis of glycosides catalyzed by all of these enzymes. On the basis of these results, we conclude that all retaining β -glycosidases perform catalysis by the formation and subsequent breakdown of a covalent intermediate species and not by the formation of a long-lived ion pair. The covalent intermediate may either be a glycosyl enzyme, as found for most retaining glycosidases, or a bicyclic oxazoline, as found for some classes of enzymes processing sugars bearing an acetamido group at the 2-position of the substrate. This general mechanism unifies the substrate distortion proposed by Phillips, the covalent intermediate first postulated by Koshland, and the electrophilic migration of the anomeric center (C-l) along the reaction coordinate. It is consistent with both the anti-periplanar lone-pair hypothesis and the principle of least nuclear motion. Most importantly, this mechanism is supported by all experimental data including kinetic isotope effects, mass spectrometry, crystal structures and enzyme kinetics for all retaining β -glycosidases studied, to the best knowledge of the author.
Solar Flare Arcade Modelling: Bridging the gap from 1D to 3D Simulations of Optically Thin Radiation
Creators: name: Kerr, Graham S.
name: Allred, Joel C.
name: Polito, Vanessa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Solar flares are 3D phenomenon but modelling a flare in 3D, including many of the important processes in the chromosphere, is a computational challenge. Accurately modelling the chromosphere is important, even if the transition region and corona are the areas of interest, due to the flow of energy, mass, and radiation through the interconnected layers. We present a solar flare arcade model, that aims to bridge the gap between 1D and 3D modelling. Our approach is limited to the synthesis of optically thin emission. Using observed active region loop structures in a 3D domain we graft simulated 1D flare atmospheres onto each loop, synthesise the emission and then project that emission onto to the 2D observational plane. Emission from SDO/AIA, GOES/XRS, and IRIS/SG Fe XXI 1354.1A was forward modelled. We analyse the temperatures, durations, mass flows, and line widths associated with the flare, finding qualitative agreement but certain quantitative differences. Compared to observations, the Doppler shifts are of similar magnitude but decay too quickly. They are not as ordered, containing a larger amount of scatter compared to observations. The duration of gradual phase emission from GOES and AIA emission is also too short. Fe XXI lines are broadened, but not sufficiently. These findings suggest that additional physics is required in our model. The arcade model that we show here as a proof-of-concept can be extended to investigate other lines and global aspects of solar flares, providing a means to better test the coronal response to models of flare energy injection.
description: Accepted for publication in the Astrophysical Journal, 22 pages, 18 figures
Additional file 1 of “Transition from children’s to adult services for adolescents/young adults with life-limiting conditions: developing realist programme theory through an international comparison”
Creators: name: Kerr, Helen
name: Widger, Kimberley
name: Cullen-Dean, Geraldine
name: Price, Jayne
name: O’Halloran, Peter
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. Transition to Adult Services by Youth with Life-Threatening Conditions: a Survey for Health Professionals.
Der Vierte Antoniusbrief und die Frage nach der Echtheit und Originalsprache der Antoniusbriefe
Creators: name: Rubenson, Samuel
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 73 (1989): Oriens christianus, Band 73
Additional file 1 of A pipeline for complete characterization of complex germline rearrangements from long DNA reads
Creators: name: Mitsuhashi, Satomi
name: Ohori, Sachiko
name: Katoh, Kazutaka
name: Frith, Martin C.
name: Matsumoto, Naomichi
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Supplementary methods and results, Figs. S1–21, and Tables S1–11.