cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Differential models for the Anderson dual to bordism theories and invertible QFT's, I
Creators: name: Yamashita, Mayuko
name: Yonekura, Kazuya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we construct new models for the Anderson duals $(IΩ^G)^*$ to the stable tangential $G$-bordism theories and their differential extensions. The cohomology theory $(IΩ^G)^*$ is conjectured by Freed and Hopkins [FH21] to classify deformation classes of possibly non-topological invertible quantum field theories (QFT's). Our model is made by abstractizing certain properties of invertible QFT's, thus supporting their conjecture.
description: 60 pages, 1 figures. The content of this article has been greatly changed and improved from the first version (v1). The results of v1 are contained in Sections 3 and 4 of the current version. See Remark 1.20 for details
title: Overleg Flexibel Storten: deelrapport 13. Vergelijking modelresultaten 2009-2012
Creators: name: Vos, Gwendy
name: Vanlede, Joris
name: Plancke, Yves
Publisher: name: Flanders Hydraulics
Year: 2023

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen. Volume : 00_031_13 Issue : Pagination : IV, 7 + 32 p. bijl.
Irreducible modules over Witt algebras $\mathcal{W}_n$ and over $\mathfrak{sl}_{n+1}(\mathbb{C})$
Creators: name: Tan, Haijun
name: Zhao, Kaiming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: In this paper, by using the "twisting technique" we obtain a class of new modules $A_b$ over the Witt algebras $\mathcal{W}_n$ from modules $A$ over the Weyl algebras $\mathcal{K}_n$ (of Laurent polynomials) for any $b\in\mathbb{C}$. We give the necessary and sufficient conditions for $A_b$ to be irreducible, and determine the necessary and sufficient conditions for two such irreducible $\mathcal{W}_n$-modules to be isomorphic. Since $\sl_{n+1}(\mathbb{C})$ is a subalgebra of $\mathcal{W}_n$, all the above irreducible $\mathcal{W}_n$-modules $A_b$ can be considered as $\sl_{n+1}(\mathbb{C})$-modules. For a class of such $\sl_{n+1}(\mathbb{C})$-modules, denoted by $Ω_{1-a}(λ_1,λ_2,\cdots,λ_n)$ where $a\in\mathbb{C}, λ_1,λ_2,\cdots,λ_n \in \mathbb{C}^*$, we determine the necessary and sufficient conditions for these $\sl_{n+1}(\mathbb{C})$-modules to be irreducible. If the $\sl_{n+1}(\mathbb{C})$-module $Ω_{1-a}(λ_1,λ_2,\cdots,λ_n)$ is reducible, we prove that it has a unique nontrivial submodule $W_{1-a}(λ_1, λ_2,...λ_n)$ and the quotient module is the finite dimensional $\sl_{n+1}(\mathbb{C})$-module with highest weight $mΛ_n$ for some non-negative integer $m\in \Z_+$. The necessary and sufficient conditions for two $\mathfrak{sl}_{n+1}(\mathbb{C})$-modules $Ω_{1-a}(λ_1,λ_2,\cdots,λ_n)$ and $W_{1-a}(λ_1, λ_2,...λ_n)$ to be isomorphic are also determined. The irreducible $\mathfrak{sl}_{n+1}(\mathbb{C})$-modules $Ω_{1-a}(λ_1, λ_2,...λ_n)$ and $W_{1-a}(λ_1, λ_2,...λ_n)$ are new.
description: 19 pages
Successful Treatment for Idiopathic Thrombocytopenic Purpura in a Japanese Monkey
Creators: name: Kimura, Tohru
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2014

description: In human beings and dogs, idiopathic thrombocytopenic purpura (ITP) is a well-known disease in which antibodies bound to the surface platelets result in premature platelet destruction by macrophages. However, there is a paucity of information dealing with ITP in non-human primates, especially the Japanese monkey (Macaca fuscata). The case is described of a female Japanese monkey suffering from ITP in the Center for Experimental Animals. Physical examinations revealed characteristic findings such as mucosal and cutaneous petechiae, ecchymoses and purpura, epistaxis and mucous membrane pallor. The monkey had severe thrombocytopenia (10,000/μl) on initial hematological examination. Immunosuppressive glucocorticoid therapy had remarkable effects on this condition, with the platelet count rapidly reaching the normal range. On tapering the dose of predonisolone, the number of platelets decreased and the monkey suffered a relapse of ITP. Although immunosuppressive therapy was resumed with the initial dose of predonisolone, the monkey was relatively slow to respond. The initial treatment revealed an apparently faster increase in platelet count than the second treatment following the recurrence of ITP. The monkey remained in complete remission for more than one year after cessation of predonisolone treatment. In blood coagulation profiles and serum biochemical findings, there were no marked changes throughout this investigation. Neither endoscopy nor the stool antigen test provided evidence that natural infection with Helicobacter pylori caused ITP in this monkey. This is the first case of successful treatment for idiopathic thrombocytopenic purpura in a Japanese monkey.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol 39, No 1 (2012)
Spontaneous Congenital Hydrocephalus in Sprague Dawley Rat
Creators: name: Mulla, Mohmad Sadik A
name: Goyal, Vinod Kumar
name: Jana, Santanu
name: Nirogi, Ramakrishna
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2014

description: Hydrocephalus is a neurological disorder that results from the accumulation of excess cerebrospinal fluid in the ventricles of the brain culminating in an enlarged cranium. This sporadic disorder may occur as a congenital malformation in many mammalian species including inbred rodent colonies at an early juvenile stage of life. Under conventional husbandry practice of breeding, 5 pups showing some clinical signs of neurological dysfunction at the age of 20 days were examined thoroughly. Detailed macroscopic examination demonstrated dome shaped head, thinned and deformed parietal bone, open/closed suture depending upon the severity of ventricular dilatation. Microscopic examination revealed dilated lateral ventricles, compressed and attenuated cortical mantle, spongy appearance of the sub-ventricular zone, stretched ventricular ependyma, flattened ependymal cell lining and infiltration of mononuclear cells in the ventricular lining.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol 39, No 1 (2012)
Additional file 3 of Extensive variability in the composition of immune infiltrate in different mouse models of cancer
Creators: name: Niemi, Virginia
name: Gaskarth, Douglas
name: Kemp, Roslyn A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3 Representative gating strategy for identifying lymphocyte and innate cell populations. Single cell suspensions from each tissue were gated as follows: A. Time gate. B. Separating SSC-A and FSC-A low lymphocytes (bottom gate) and SSC-A and FSC-A high myeloid cells (top gate). C. Live lymphocytes D. Single lymphocytes G. CD3+ CD19- T cells and CD3- CD19+ B cells. H. T cells were further gated into CD4+ or CD8+. E. Live myeloid cells. F. CD3- CD19- gate to remove non-myeloid cells. I. Single myeloid cells. J. Myeloid cells where split based on CD11b and F480 expression before being further stratified based on CD11c expression (K-N.). Gates were determined using previously established gating strategies and FMOs (see Additional File 4). Data are from one representative spleen sample from a mouse challenged with IC CT26 tumour cells.
Measuring diachronic sense change: new models and Monte Carlo methods for Bayesian inference
Creators: name: Zafar, Schyan
name: Nicholls, Geoff
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In a bag-of-words model, the senses of a word with multiple meanings, e.g. "bank" (used either in a river-bank or an institution sense), are represented as probability distributions over context words, and sense prevalence is represented as a probability distribution over senses. Both of these may change with time. Modelling and measuring this kind of sense change is challenging due to the typically high-dimensional parameter space and sparse datasets. A recently published corpus of ancient Greek texts contains expert-annotated sense labels for selected target words. Automatic sense-annotation for the word "kosmos" (meaning decoration, order or world) has been used as a test case in recent work with related generative models and Monte Carlo methods. We adapt an existing generative sense change model to develop a simpler model for the main effects of sense and time, and give MCMC methods for Bayesian inference on all these models that are more efficient than existing methods. We carry out automatic sense-annotation of snippets containing "kosmos" using our model, and measure the time-evolution of its three senses and their prevalence. As far as we are aware, ours is the first analysis of this data, within the class of generative models we consider, that quantifies uncertainty and returns credible sets for evolving sense prevalence in good agreement with those given by expert annotation.
description: Additional results included in the appendix
Rare Spontaneous Proliferating Tumour in Rat: Fibrosarcoma
Creators: name: Mugale, Madhav
name: Singh, Vikash
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2014

description: A 1 year old, male Wistar rat presented to clinic having a subcutaneous greyish-white mass extending to the supraorbital area of the left eye. The stained impression-smear in the microscope small field showed bunches of round cells in diffused masses, which were present in various stages of cell division. Large numbers of cells were present in the mitosis phase. Large populations of neoplastic spindle cells, rare pleomorphic multinucleated cells, and rare leukocytes were observed. The primary tumour was characterized by fusiform spindle cells producing various amounts of interlacing bundles of collagen. The spindleshaped cells contained moderate amounts of eosinophilic, fibrillar cytoplasm with an oval nucleus, coarsely clumped chromatin, and one or more nucleoli. Some of the round cells were present in the nucleolar remoulding stage and the presence of immature proliferating cells had previously been identified as spindle cell fibrosarcomas. During progression, the tumour acquires self-dependence and the ability to invade other tissues and metastasize. The primary tumour was characterized by fusiform spindle cells producing various amounts of interlacing bundles of collagen. The cells formed a characteristic herringbone pattern and mitotic figures were frequent. The relationship to human fibrosarcoma is noted.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol 39, No 1 (2012)
File System Design Approaches
Creators: name: Kahanwal, Brijender
Publisher: name: arXiv
Year: 2014
Subjects: subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: In this article, the file system development design approaches are discussed. The selection of the file system design approach is done according to the needs of the developers what are the needed requirements and specifications for the new design. It allowed us to identify where our proposal fitted in with relation to current and past file system development. Our experience with file system development is limited so the research served to identify the different techniques that can be used. The variety of file systems encountered show what an active area of research file system development is. The file systems may be from one of the two fundamental categories. In one category, the file system is developed in user space and runs as a user process. Another file system may be developed in the kernel space and runs as a privileged process. Another one is the mixed approach in which we can take the advantages of both aforesaid approaches. Each development option has its own pros and cons. In this article, these design approaches are discussed.
description: 5 pages, 6 figures
DDCNet: Deep Dilated Convolutional Neural Network for Dense Prediction
Creators: name: Salehi, Ali
name: Balasubramanian, Madhusudhanan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Dense pixel matching problems such as optical flow and disparity estimation are among the most challenging tasks in computer vision. Recently, several deep learning methods designed for these problems have been successful. A sufficiently larger effective receptive field (ERF) and a higher resolution of spatial features within a network are essential for providing higher-resolution dense estimates. In this work, we present a systemic approach to design network architectures that can provide a larger receptive field while maintaining a higher spatial feature resolution. To achieve a larger ERF, we utilized dilated convolutional layers. By aggressively increasing dilation rates in the deeper layers, we were able to achieve a sufficiently larger ERF with a significantly fewer number of trainable parameters. We used optical flow estimation problem as the primary benchmark to illustrate our network design strategy. The benchmark results (Sintel, KITTI, and Middlebury) indicate that our compact networks can achieve comparable performance in the class of lightweight networks.
description: 32 pages, 13 figures, 3 tables
ЭФФЕКТИВНОСТЬ ВСПОМОГАТЕЛЬНЫХ РЕПРОДУКТИВНЫХ ТЕХНОЛОГИЙ ПРИ БЕСПЛОДИИ
Creators: name: Худоярова, Д.Р.
name: Шопулотова, З.А.
Publisher: name: Zenodo
Year: 2024

description: Статья посвящена обзору литературы важнейшей медико-социальной проблеме современности – влиянию роли бесплодия на исходы программ вспомогательных репродуктивных технологий (ВРТ). Вспомогательные репродуктивные технологии (ВРТ) в последние годы широко вошли в практику во многих развитых странах мира, в том числе и в Республике Узбекистан. Они во многом заменили малоэффективные традиционные методы лечения и вывели проблему бесплодия на новый уровень, позволив добиться беременности у большого числа супружеских пар. В то же время использование ВРТ ставит ряд медико-социальных, клинических, экономических и прочих проблем. Так, в частности, будучи весьма дорогостоящим методом, лечение бесплодия с помощью ВРТ в Республике Узбекистан не предусмотрено бюджетным финансированием и проводится преимущественно в частных учреждениях.
Cardiovascular and Haemostatic Changes in a Rabbit Microsphere Model of Pulmonary Thrombosis
Creators: name: Berthelsen, Line Olrik
name: Pedersen, Henrik Duelund
name: Kristensen, Annemarie Thuri
name: Tranholm, Mikael
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2014

description: In order to further understand the pathogenesis of disseminated intravascular coagulation (DIC), to diagnose the condition in the early stage and to provide effective therapeutic intervention, valid and clinical relevant animal models are needed. Microvascular pulmonary thrombosis is one of the hallmarks in DIC. In the search for markers of microvascular pulmonary thrombosis in DIC, the present study evaluated local pulmonary effects of microvascular pulmonary thrombosis caused by polystyrene microspheres, generally assumed to be inert. Simultaneously the haemostatic system was evaluated to investigate whether microspheres are truly inert in a rabbit model of microvascular pulmonary thrombosis. Cardiovascular and haematological parameters were measured at three time points over a 30 minute period from rabbits administered 45 μm microspheres as a single bolus dose of 0.3, 6, 16 or 32 μl microspheres/ml blood. Injection of 0.3 μl microspheres/ml blood resulted in no changes. Injection of 6 μl microspheres/ml blood resulted in a minor increase in cardiovascular parameters whereas injection of 16 μl microspheres/ml blood resulted in significant changes of cardiovascular parameters without impact on haemostatic parameters. A lethal effect was shown after injection of 32 μl microspheres/ml blood. With i.v. injection of microspheres we succeeded in establishing an inert mechanical model of fixed size microvascular emboli in the lung vasculature of the rabbit. We showed that selected cardiovascular parameters rapidly and dose dependently reflect obstructions in the pulmonary vasculature and therefore could be very valuable and reliable parameters in experimental models of disseminated intravascular coagulation for early detection of microvascular pulmonary thrombosis.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol 39, No 1 (2012)
Pfaffian and determinantal tau functions I
Creators: name: van de Leur, J. W.
name: Orlov, A. Yu.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Adler, Shiota and van Moerbeke observed that a tau function of the Pfaff lattice is a square root of a tau function of the Toda lattice hierarchy of Ueno and Takasaki. In this paper we give a representation theoretical explanation for this phenomenon. We consider 2-BKP and two-component 2-KP tau functions. We shall show that a square of a BKP tau function is equal to a certain two-component KP tau function and a square of a 2-BKP tau function is equal to a certain two-component 2-KP tau function.
Additional file 7 of Extensive variability in the composition of immune infiltrate in different mouse models of cancer
Creators: name: Niemi, Virginia
name: Gaskarth, Douglas
name: Kemp, Roslyn A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 7 Myeloid cell counts in the tumours and spleens of mice that received intracaecal (IC) or subcutaneous (SC) CT26 tumours. Cells from processed tissue were stained and live cells identified using trypan blue exclusion, giving the total live cell count for the tissue sample. This total live cell count was used in combination with the frequency of each subset out of total live cells (calculated using FlowJo analysis) to generate the cell number of each subset. A. Number of myeloid cells in IC (top graph) and SC (bottom graph) CT26 tumours. B. Number of myeloid cells in the spleens of mice injected with IC (top graph) or SC (bottom graph) CT26 tumours. IC n = 12, pooled from 7 individual experiments. SC n = 25, pooled from 4 individual experiments. Each data point represents a tissue sample from an individual mouse.
PET Neuroimaging in Pigs
Creators: name: Olsen Alstrup, Aage Kristian
name: Smith, Donald F
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2014

description: Current interest in studying molecular processes as they occur in the living brain has accelerated the use of laboratory animals for neuroimaging of novel radiolabelled compounds. In particular, positron emission tomography (PET) has contributed to the development of radiolabelled compounds for assessing molecular processes in the living brain. The dynamics of PET typically require a relatively large organ size and blood supply in order to properly evaluate radioligand binding kinetics. To fulfil these requirements, pigs have often been used in such studies. Today, much is known about the metabolism, neurotransmission and molecular binding properties of the living porcine brain, and most findings support similarities between neuronal mechanisms in pigs and humans. Here, we review 10-years of PET findings on neuromolecular processes in the living porcine brain and, whenever possible, we relate PET findings in pigs to those obtained in humans.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol 39, No 1 (2012)
Additional file 4 of Extensive variability in the composition of immune infiltrate in different mouse models of cancer
Creators: name: Niemi, Virginia
name: Gaskarth, Douglas
name: Kemp, Roslyn A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 4 Representative myeloid cell gating strategy based on FMOs in an IC spleen sample. A. CD11b FMO. B. F480 FMO. C. FMOs were used to separate myeloid cells into quadrants: CD11b- F480-, CD11b + F480-, CD11b- F480+, and CD11b + F480+. From these quadrants, cells were then split into CD11c + or CD11c- (D.). E. CD11c FMO for each quadrant.
DDCNet-Multires: Effective Receptive Field Guided Multiresolution CNN for Dense Prediction
Creators: name: Salehi, Ali
name: Balasubramanian, Madhusudhanan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Dense optical flow estimation is challenging when there are large displacements in a scene with heterogeneous motion dynamics, occlusion, and scene homogeneity. Traditional approaches to handle these challenges include hierarchical and multiresolution processing methods. Learning-based optical flow methods typically use a multiresolution approach with image warping when a broad range of flow velocities and heterogeneous motion is present. Accuracy of such coarse-to-fine methods is affected by the ghosting artifacts when images are warped across multiple resolutions and by the vanishing problem in smaller scene extents with higher motion contrast. Previously, we devised strategies for building compact dense prediction networks guided by the effective receptive field (ERF) characteristics of the network (DDCNet). The DDCNet design was intentionally simple and compact allowing it to be used as a building block for designing more complex yet compact networks. In this work, we extend the DDCNet strategies to handle heterogeneous motion dynamics by cascading DDCNet based sub-nets with decreasing extents of their ERF. Our DDCNet with multiresolution capability (DDCNet-Multires) is compact without any specialized network layers. We evaluate the performance of the DDCNet-Multires network using standard optical flow benchmark datasets. Our experiments demonstrate that DDCNet-Multires improves over the DDCNet-B0 and -B1 and provides optical flow estimates with accuracy comparable to similar lightweight learning-based methods.
description: 27 pages, 10 figures, 2 tables. arXiv admin note: text overlap with arXiv:2107.04715
Emerging problems in approximation theory for the numerical solution of nonlinear PDEs of integrable type
Creators: name: Fermo, Luisa
name: Van der Mee, Cornelis
name: Seatzu, Sebastiano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 41A46, 65R20, 35P25

description: In this paper we present some open problems pertaining to the approximation theory involved in the solution of the important class of Nonlinear Partial Differential Equations (NPDEs) of integrable type. For this class of NPDEs, any Initial Value Problem (IVP) can be theoretically solved by the Inverse Scattering Transform (IST) technique whose main steps involve the solution of Volterra equations with structured kernels on unbounded domains, the solution of Fredholm integral equations and the identification of coefficients and parameters of monomial-exponential sums. The aim of this paper is twofold: propose a method for solving the above mentioned problems under particular hypothesis and arouse interest in these problems in order to develop an effective method which works under more general assumptions.
description: 18 pages, 14 figures - submitted -
Restricted families of projections onto planes: The general case of nonvanishing geodesic curvature
Creators: name: Harris, Terence L. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 42B10, 28E99

description: It is shown that if $γ: [a,b] \to S^2$ is $C^3$ with $\det(γ, γ', γ'') \neq 0$, and if $A \subseteq \mathbb{R}^3$ is a Borel set, then $\dim π_θ (A) \geq \min\left\{ 2,\dim A, \frac{ \dim A}{2} + \frac{3}{4} \right\}$ for a.e. $θ\in [a,b]$, where $π_θ$ denotes projection onto the orthogonal complement of $γ(θ)$ and ``$\dim$'' refers to Hausdorff dimension. This partially resolves a conjecture of Fässler and Orponen in the range $1< \dim A \leq 3/2$, which was previously known only for non-great circles. For $3/2 < \dim A < 5/2$ this improves the known lower bound for this problem.
description: 30 pages. One figure from arXiv:1911.00615 is reused. V2: two references added + minor corrections. V3: Minor corrections, accepted version
A Novel Factor Graph-Based Optimization Technique for Stereo Correspondence Estimation
Creators: name: Shabanian, Hanieh
name: Balasubramanian, Madhusudhanan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Dense disparities among multiple views is essential for estimating the 3D architecture of a scene based on the geometrical relationship among the scene and the views or cameras. Scenes with larger extents of heterogeneous textures, differing scene illumination among the multiple views and with occluding objects affect the accuracy of the estimated disparities. Markov random fields (MRF) based methods for disparity estimation address these limitations using spatial dependencies among the observations and among the disparity estimates. These methods, however, are limited by spatially fixed and smaller neighborhood systems or cliques. In this work, we present a new factor graph-based probabilistic graphical model for disparity estimation that allows a larger and a spatially variable neighborhood structure determined based on the local scene characteristics. We evaluated our method using the Middlebury benchmark stereo datasets and the Middlebury evaluation dataset version 3.0 and compared its performance with recent state-of-the-art disparity estimation algorithms. The new factor graph-based method provided disparity estimates with higher accuracy when compared to the recent non-learning- and learning-based disparity estimation algorithms. In addition to disparity estimation, our factor graph formulation can be useful for obtaining maximum a posteriori solution to optimization problems with complex and variable dependency structures as well as for other dense estimation problems such as optical flow estimation.
description: 25 pages, 5 figures, 6 tables
Some remarks on the radius of spatial analyticity for the Euler equations
Creators: name: Cappiello, Marco
name: Nicola, Fabio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 76B03, 35L60

description: We consider the Euler equations on $\mathbb{T}^d$ with analytic data and prove lower bounds for the radius of spatial analyticity $ε(t)$ of the solution using a new method based on inductive estimates in standard Sobolev spaces. Our results are consistent with similar previous results proved by Kukavica and Vicol, but give a more precise dependence of $ε(t)$ on the radius of analyticity of the initial datum.
description: Some misprints corrected
Additional file 8 of Extensive variability in the composition of immune infiltrate in different mouse models of cancer
Creators: name: Niemi, Virginia
name: Gaskarth, Douglas
name: Kemp, Roslyn A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 8 Approximately half of CD3- CD19- lymphocytes are CD335+ NK cells. A-C. Samples were gated as in Additional File 3 to the CD3 and CD19 gate, and then gated on CD335. Representative plots are shown for the A. lymph nodes, B. spleens, and C. tumours from mice challenged intracaecally with tumour. D. Graph of frequencies of CD335+ lymphocytes gated as in A-C. Each data point represents an individual mouse. Data are shown with the median.
Oracally efficient estimation of autoregressive error distribution with simultaneous confidence band
Creators: name: Wang, Jiangyan
name: Liu, Rong
name: Cheng, Fuxia
name: Yang, Lijian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We propose kernel estimator for the distribution function of unobserved errors in autoregressive time series, based on residuals computed by estimating the autoregressive coefficients with the Yule-Walker method. Under mild assumptions, we establish oracle efficiency of the proposed estimator, that is, it is asymptotically as efficient as the kernel estimator of the distribution function based on the unobserved error sequence itself. Applying the result of Wang, Cheng and Yang [J. Nonparametr. Stat. 25 (2013) 395-407], the proposed estimator is also asymptotically indistinguishable from the empirical distribution function based on the unobserved errors. A smooth simultaneous confidence band (SCB) is then constructed based on the proposed smooth distribution estimator and Kolmogorov distribution. Simulation examples support the asymptotic theory.
description: Published in at http://dx.doi.org/10.1214/13-AOS1197 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Fragmented imaginary-time evolution for early-stage quantum signal processors
Creators: name: Silva, Thais de Lima
name: Taddei, Márcio M.
name: Carrazza, Stefano
name: Aolita, Leandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Simulating quantum imaginary-time evolution (QITE) is a major promise of quantum computation. However, the known algorithms are either probabilistic (repeat until success) with impractically small success probabilities or coherent (quantum amplitude amplification) but with circuit depths and ancillary-qubit numbers unrealistically large in the mid term. Our main contribution is a new generation of deterministic, high-precision QITE algorithms significantly more amenable experimentally. These are based on a surprisingly simple idea: partitioning the evolution into several fragments that are sequentially run probabilistically. This causes a huge reduction in wasted circuit depth every time a run fails. Indeed, the resulting overall runtime is asymptotically better than in coherent approaches and the hardware requirements even milder than in probabilistic ones, remarkably. More technically, we present two QITE-circuit sub-routines with excellent complexity scalings. One of them is optimal in ancillary-qubit overhead (one single ancillary qubit throughout) whereas the other one is optimal in runtime for small inverse temperature or high precision. The latter is shown by noting that the runtime saturates a cooling-speed limit that is the imaginary-time counterpart of the no fast-forwarding theorem of real-time simulations, which we prove. Moreover, we also make two technical contributions to the quantum signal processing formalism for operator-function synthesis (on which our sub-routines are based) that are useful beyond QITE. Our findings are specially relevant for the early fault-tolerance stages of quantum hardware.
description: Full rigorous proof that fragmented QITE outperforms coherent QITE for general Hamiltonians added
Differential models for the Anderson dual to bordism theories and invertible QFT's, II
Creators: name: Yamashita, Mayuko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This is the second part of the work on differential models of the Anderson duals to the stable tangential $G$-bordism theories $IΩ^G$, motivated by classifications of invertible QFT's. Using the model constructed in the first part \cite{YamashitaYonekura2021}, in this paper we show that pushforwards in generalized differential cohomology theories induces transformations between differential cohomology theories which refine the Anderson duals to multiplicative genera. This gives us a unified understanding of an important class of elements in the Anderson duals with physical origins.
description: 31 pages
4D visualization of the photoexcited coherent magnon by an X-ray free electron laser
Creators: name: Jang, Hoyoung
name: Ueda, Hiroki
name: Kim, Hyeong-Do
name: Kim, Minseok
name: Shin, Kwang Woo
name: Kim, Kee Hoon
name: Park, Sang-Youn
name: Shin, Hee Jun
name: Borisov, Pavel
name: Rosseinsky, Matthew J.
name: Jang, Dogeun
name: Choi, Hyeongi
name: Eom, Intae
name: Staub, Urs
name: Chun, Sae Hwan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: X-ray free electron lasers (XFEL) create femtosecond X-ray pulses with high brightness and high longitudinal coherence allowing to extend X-ray spectroscopy and scattering techniques into the ultrafast time-domain. These X-rays are a powerful probe for studying coherent quasiparticle excitations in condensed matter triggered by an impulsive optical laser pump. However, unlike coherent phonons, other quasiparticles have been rarely observed due to small signal changes and lack of standards for the identification. Here, we exploit resonant magnetic X-ray diffraction using an XFEL to visualize a photoexcited coherent magnon in space and time. Large intensity oscillations in antiferromagnetic and ferromagnetic Bragg reflections from precessing moment are observed in a multiferroic Y-type hexaferrite. The precession trajectory reveals that a large, long-lived, photoinduced magnetic-field changes the net magnetization substantially through the large-amplitude of the magnon. This work demonstrates an efficient XFEL probe for the coherent magnon in the spotlight for opto-spintronics application.
Gamow shell model description of proton scattering on $^{18}$Ne
Creators: name: Jaganathen, Y.
name: Michel, N.
name: Płoszajczak, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We formulate the GSM in coupled-channel (GSM-CC) representation to describe low-energy elastic and inelastic scattering of protons on $^{18}$Ne. The GSM-CC formalism is applied to a translationally-invariant Hamiltonian with an effective finite-range two-body interaction. We discuss in details the GSM-CC formalism in coordinate space and give the description of the novel equivalent potential method for solving the GSM-CC system of integro-differential equations. We present the first application of the GSM-CC formalism for the calculation of excited states of $^{18}$Ne and $^{19}$Na, excitation function and the elastic/inelastic differential cross-sections in the $^{18}$Ne$(p,p')$ reaction at different energies.
description: 14 pages, 11 figures
Inducción a la maduración gonádica y conservación del esperma de la trucha de San Pedro Mártir Oncorhynchus mykiss nelsoni (Evermann) /
Creators: name: Aguilar Juárez, Marisela
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Trucha||San Pedro Mártir, Sierra de||Trucha||Reproducción||San Pedro Mártir, Sierra de||Ciencias||Tesis Doctorado
subject: QL638.S2 A38 2010

description: La maduración gonádica en cautiverio de la trucha de San Pedro Mártir Oncorhynchus mykiss nelsoni (Evermann) fue determinada en condiciones ex situ con el propósito de generar un protocolo a corto y largo plazo que permita la conservación de su esperma.
Galactic interstellar turbulence in the southern sky seen through spatial gradients of the polarization vector
Creators: name: Iacobelli, M.
name: Burkhart, B.
name: Haverkorn, M.
name: Lazarian, A.
name: Carretti, E.
name: Staveley-Smith, L.
name: Gaensler, B. M.
name: Bernardi, G.
name: Kesteven, M. J.
name: Poppi, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radio synchrotron polarization maps of the Galaxy can be used to infer the properties of interstellar turbulence in the diffuse warm ionized medium (WIM). In this paper, we investigate the spatial gradient of linearly polarized synchrotron emission ($|\nabla\textbf{P}|/|\textbf{P}|$) as a tracer of turbulence, the relationship of the gradient to the sonic Mach number of the WIM, and changes in morphology of the gradient as a function of Galactic position in the southern sky. We use data from the S-band Polarization All Sky Survey (S-PASS) to image the spatial gradient of the linearly polarized synchrotron emission ($|\nabla \textbf{P}|/|\textbf{P}|$) of the entire southern sky at $2.3$~GHz. The spatial gradient of linear polarization reveals rapid changes of the density and magnetic fluctuations in the WIM due to magnetic turbulence as a function of Galactic position; we make comparisons of these data to ideal MHD numerical simulations. In order to constrain the sonic Mach number ($M_{s}$), we apply a high order moments analysis to the observations and to the simulated diffuse, isothermal ISM with ideal magneto-hydrodynamic turbulence. We find that polarization gradient maps reveal elongated structures, which we associate with turbulence in the ISM. Our analysis corroborates the view of a turbulent WIM in a transonic regime $M_{s}\lesssim 2$. Filamentary structures with typical widths down to the angular resolution are seen and the observed morphologies match closely with numerical simulations and in some cases H$α$ contours. The $|\nabla \textbf{P}|/|\textbf{P}|$ intensity is found to be approximately log-normal distributed. No systematic variations of the sonic Mach number are observed as a function of Galactic coordinates, which is consistent with turbulence in the WIM inferred by the analysis of H$α$ data.
description: accepted for publication on A&A 13 pages, 10 figures
Computing Riemann-Roch polynomials and classifying hyper-Kähler fourfolds
Creators: name: Debarre, Olivier
name: Huybrechts, Daniel
name: Macrì, Emanuele
name: Voisin, Claire
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C20, 14J35, 14J42, 14J60

description: We prove that a hyper-Kähler fourfold satisfying a mild topological assumption is of K3$^{[2]}$ deformation type. This proves in particular a conjecture of O'Grady stating that hyper-Kähler fourfolds of K3$^{[2]}$ numerical type are of K3$^{[2]}$ deformation type. Our topological assumption concerns the existence of two integral degree-2 cohomology classes satisfying certain numerical intersection conditions. There are two main ingredients in the proof. We first prove a topological version of the statement, by showing that our topological assumption forces the Betti numbers, the Fujiki constant, and the Huybrechts-Riemann-Roch polynomial of the hyper-Kähler fourfold to be the same as those of K3$^{[2]}$ hyper-Kähler fourfolds. The key part of the article is then to prove the hyper-Kähler SYZ conjecture for hyper-Kähler fourfolds for divisor classes satisfying the numerical condition mentioned above.
description: 34 pages. v3: Minor corrections, references updated
PREVALENCE OF CHILDHOOD OVERWEIGHT, OBESITY AND ITS ASSOCIATED FACTORS IN ELEMENTARY SCHOOL CHILDREN IN DIRE DAWA TOWN, EASTERN ETHIOPIA 2016.
Creators: name: ASSEFA DESALEW (BSc, NURSING)
Publisher: name: Zenodo
Year: 2016

description: Introduction: The double burden of malnutrition in developing countries is a challenge to people health. Childhood obesity is related to an increased risk of high blood pressure, diabetes, respiratory disease and orthopedic disorders during childhood as well as its adverse effects in adulthood. Obesity in children is increasing worldwide. More than 10 percent children 5 to 17 years of age is obese. Objective: The overall purpose of this study was to determine the prevalence of childhood overweight, obesity and its associated factors in elementary school children of Dire Dawa town Eastern Ethiopia.
Modelling the Dynamic Charging Process of HTS Coils by a Dynamo-type Flux Pump
Creators: name: Zhou, Pengbo
name: Grilli, Francesco
name: Ghabeli, Asef
name: Ansile, Mark
Publisher: name: Zenodo
Year: 2022
Subjects: HTS dynamo, finite-element model, electrical circuit, AC losses

description: The high-Tc superconducting (HTS) dynamo-type flux pump provides the possibility of charging HTS coils without any electrical contact, removing the need for current leads and their associated thermal loss. Although a number of numerical methods have been proposed for the characterization of the HTS dynamo, the dynamic behavior of the HTS dynamo and its impact on the HTS coils during the charging process has not been deeply studied yet. The crucial point is the parallel dynamic calculation of the HTS dynamo along with the HTS coil. 3D modeling can provide a more precise solution than 2D, but with the cost of massive computation time. In this study, we couple two models of the HTS dynamo and HTS coil together via their lumped parameters to reproduce the dynamic charging process. To predict the AC losses of the whole system during different charging stages, one can first extract the time-dependent DC charging current by pre-calculation
 for shortening the calculation time. In addition, this methodology has the potential to couple different types of FEM models, including various types of superconducting elements. Moreover, the versatility of this methodology will be validated in our further work.
Bethe/Gauge correspondence on curved spaces
Creators: name: Nekrasov, Nikita A.
name: Shatashvili, Samson L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Bethe/gauge correspondence identifies supersymmetric vacua of massive gauge theories invariant under the two dimensional N=2 Poincare supersymmetry with the stationary states of some quantum integrable system. The supersymmetric theory can be twisted in a number of ways, producing a topological field theory. For these theories we compute the handle gluing operator H. We also discuss the Gaudin conjecture on the norm of Bethe states and its connection to H.
Zukunft der Denkmalpflege in Gefahr
Creators: name: Redaktion, Die
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Vol. 54 No. 4 (2013): Burgen und Schlösser. Zeitschrift für Burgenforschung und Denkmalpflege
On the Optimization Landscape of Dynamic Output Feedback Linear Quadratic Control
Creators: name: Duan, Jingliang
name: Cao, Wenhan
name: Zheng, Yang
name: Zhao, Lin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The convergence of policy gradient algorithms hinges on the optimization landscape of the underlying optimal control problem. Theoretical insights into these algorithms can often be acquired from analyzing those of linear quadratic control. However, most of the existing literature only considers the optimization landscape for static full-state or output feedback policies (controllers). We investigate the more challenging case of dynamic output-feedback policies for linear quadratic regulation (abbreviated as dLQR), which is prevalent in practice but has a rather complicated optimization landscape. We first show how the dLQR cost varies with the coordinate transformation of the dynamic controller and then derive the optimal transformation for a given observable stabilizing controller. One of our core results is the uniqueness of the stationary point of dLQR when it is observable, which provides an optimality certificate for solving dynamic controllers using policy gradient methods. Moreover, we establish conditions under which dLQR and linear quadratic Gaussian control are equivalent, thus providing a unified viewpoint of optimal control of both deterministic and stochastic linear systems. These results further shed light on designing policy gradient algorithms for more general decision-making problems with partially observed information.
The Schouten-van Kampen affine connection adapted to an almost (para) contact metric structure
Creators: name: Olszak, Zbigniew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary 53C25, Secondary 53C07, 53C50, 53D15

description: We study the Schouten-van Kampen connection associated to an almost contact or paracontact metric structure. With the help of such a connection, some classes of almost (para) contact metric manifolds are characterized. Certain curvature properties of this connection are found.
description: Presented at XVII Geometrical Seminar, Zlatibor 2012, Serbia
Is Emergent Universe a Consequence of Particle Creation Process?
Creators: name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A model of an emergent universe is formulated using the mechanism of particle creation. Here the universe is considered as a non-equilibrium thermodynamical system with dissipation due to particle creation mechanism. The universe is chosen as spatially flat FRW space-time and the cosmic substratum is chosen as perfect fluid with barotropic equation of state. Both first and second order deviations from equilibrium prescription is considered and it is found that the scenario of emergent universe is possible in both the cases.
description: 6 pages, Accepted for Publication in Physics Letters B
Is AdS stable?
Creators: name: Bizoń, Piotr
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It has recently been conjectured that the Anti-de Sitter space is unstable under arbitrarily small perturbations. This article (based on my plenary talk of the same title at the conference GR20 in Warsaw) briefly reviews numerical and analytical evidence supporting this conjecture, putting emphasis on weak turbulence as a driving mechanism of instability.
description: invited review for GRG (based on my plenary lecture at GR20)
Additional file 2 of An in vitro bioengineered model of the human arterial neurovascular unit to study neurodegenerative diseases
Creators: name: Robert, Jerome
name: Weilinger, Nicholas L.
name: Cao, Li-Ping
name: Cataldi, Stefano
name: Button, Emily B.
name: Stukas, Sophie
name: Martin, Emma M.
name: Seibler, Philip
name: Gilmour, Megan
name: Caffrey, Tara M.
name: Elyn M. Rowe
name: Jianjia Fan
name: MacVicar, Brian
name: Farrer, Matthew J.
name: Wellington, Cheryl L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy

description: Additional file 2: Supplemental Figure 2. Histological characterization and function of bioengineered arterial NVU. a) The histological structure of the arterial NVU was assessed by H&E staining. b) The astrocytes in arterial NVU were further analyzed with immunostaining against aquaporin 4 (AQ4). Barrier integrity was assessed by measuring permeability of 250 μg/ml of 4 kDa FITC-dextran circulated through the lumen for 2 h. Points in graphed data represent individual bioengineered vessels, bars represent mean, error bars represent ±SEM. ABL = antelumen.