cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Target-Based Maintenance of Privacy-Preserving Association Rules
Creators: name: Ahluwalia, Madhu Vasishta
Publisher: name: Maryland Shared Open Access Repository
Year: 2011
Subjects: Association Rule Mining
Change Data Capture
Database Synchronization
Discrete Wavelet Transform
Incremental Maintenance
Privacy Preserving Data Mining

description: In the context of association rule mining, the state-of-the-art in privacy preserving data mining provides solutions for categorical and Boolean association rules but not for quantitative association rules. This research fills this gap by describing a method based on discrete wavelet transform (DWT) to protect input data privacy while preserving association rules in static and dynamic environments. The key idea is to sort the data on each attribute, perform one-level Haar transform on each sorted attribute, retain approximation coefficients and copy them to two consecutive rows.  In the static case, the strategy is simple since changes to the collection of data are ignored.  In the case where data is dynamic, updates must be captured incrementally to save computational and I/O resources. Preserving association rules and the privacy of data in a dynamic environment is a three-step process. In step one, an approach to synchronize a source location with a target location is proposed.  Known as Target-Based Database Synchronization (TBDS), this approach is aimed at solving a variation of the synchronization problem.  The approach relies on comparing hash values for corresponding partitions of the source and the target databases so that if these values differ, the tuples in the target partition can be dropped and reloaded from the source.  A table of partition information guides this process. In step two, the target-based database synchronization approach is used in conjunction with the discrete wavelet transform approach to incrementally update transformed data. Finally in step three, deleted and inserted transformed deltas retrieved from the data owner's database transaction logs are passed to the data miner who combines them with his previous set of frequent itemsets to efficiently compute the new set of frequent itemsets and rules. Experimental results demonstrate that compared to existing approaches such as kd-tree and random projection, the proposed approach renders higher accuracy and privacy for small to moderate size of database updates when updates lie within attribute domains, preserves 90% -100% of the original rules regardless of whether the size of database updates is small or moderate and executes efficiently when the percentage of database changes are small.
Proposed observations of gravity waves from the early Universe via "Millikan oil drops"
Creators: name: Chiao, R. Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Pairs of Planck-mass drops of superfluid helium coated by electrons (i.e., ``Millikan oil drops''), when levitated in a superconducting magnetic trap, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. This leads to the possibility of a Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves. Detection of the gravity-wave analog of the cosmic microwave background using these drops can discriminate between various theories of the early Universe.
description: 10 pages, 2 figures, NASA "Quantum-to-Cosmos" conference proceedings to be published in IJMPD
On generalized forces in higher derivative Lagrangian theory
Creators: name: Beau, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this article, we introduce higher derivative Lagrangians of this form $α_1 A_μ(x)\dot{x}^μ$, $α_2 G_μ(x)\ddot{x}^μ$, $α_3 B_μ(x)\dddot{x}^μ$, $α_4 K_μ(x)\ddddot{x}^μ$, $\cdots$, that generalize the electromagnetic interaction to higher order derivatives. We show that odd order Lagrangians describe interactions analog to electromagnetism while even order Lagrangians are similar to gravitational interaction. From this analogy, we formulate the concept of the generalized induction principle assuming the coupling between the higher fields $U_{(n),μ}(x),\ n\geq1$ and the higher currents $j^{(n)μ}=ρ(x)d^nx^μ/ds^n$, where $ρ(x)$ is the spatial density of mass ($n$ even) or of electric charge ($n$ odd). In short, this article is an invitation to reflect on a generalization of the concept of force and of inertia. We discuss the implications of these paradigms more in depth in the last section of the paper.
description: arXiv admin note: text overlap with arXiv:1305.5759
Letter from Garcia, Jacobs & Co to R.S. Dormer, February 17, 1910
Creators: name: Garcia, Jacobs
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to R. S. Dormer from Garcia, Jacobs & Co., dated February 17, 1910, regarding advice on the prospects of British Columbian apples in the English market.
title: Unwanted surprise during preoperative imaging for a staghorn calculus
Creators: name: Amorim, João
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Uroradiology & genital male imaging
subject: Kidney
subject: CT
subject: Diagnostic procedure
subject: Calcifications / Calculi
subject: Neoplasia
subject: Clinical Cases

description: Clinical History: A male patient of 63 years-old, with diabetes mellitus, arterial hypertension and dyslipidaemia. He had recurrent symptoms of stone disease over the last 15 years, and had no previous episodes of acute pyelonephritis or haematuria. 

description: 63 years, male
The Involvement of Excitotoxicity in Purkinje Cell Death of the Lurcher Cerebellum
Creators: name: McFarland, Rebecca Jones
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Cell Death
Cerebellum
Development
Excitotoxic
Lurcher
Purkinje

description: The Lurcher mutation in the delta2 glutamate receptor (GluRdelta2) is a point mutation that chronically depolarizes heterozygous Lurcher (+/Lc) cerebellar Purkinje cells (PCs) during the first postnatal week, when GluRdelta2 receptors are inserted at PC-parallel fiber synapses in appreciable numbers. The PC specific expression of GluRdelta2 makes the +/Lc an excellent model to study the effects of membrane depolarization and oxidative stress on cell survival and death mechanisms in a single cell type during neural development. While oxidative stress has been associated with neurodegenerative diseases, it is unclear whether it is a primary cause or a downstream consequence of the neurodegenerative process. The timing of the onset of +/Lc PC death suggests that PCs are dying due to chronic depolarization. Chronic depolarization can result in increased mitochondrial production of reactive oxygen species (ROS) and intracellular Ca++ stimulated nitric oxide (NO) production. Higher levels of NO and ROS can cause cell death through a variety of mechanisms involving oxidative stress. To investigate the role of increased ROS and NO production in +/Lc PC death we have analyzed the expression of markers for NO production (NADPH-d activity, nNOS levels) and oxidative stress (nitrotyrosine and MnSOD levels) in +/Lc PCs from P10 to P25.  To test the effects of chronic depolarization and oxidative stress on Na+/K+ ATPase, a key ATP consumer, the activity and expression patterns were examined. +/Lc PCs show evidence of increased levels of NO, peroxynitrite, MnSOD and Na+/K+ ATPase, but decreased levels of Na+/K+ ATPase activity. The effects of inhibiting NOS activity on +/Lc PC survival were investigated using knock-out mice and NOS inhibitors (L-NAME and 7-NINA). The +/Lc mutant was crossed with an ?-nNOS knock-out mutant to eliminate nNOS activity in vivo. However, in the double mutant cross, +/Lc PCs expressed an alternative form of nNOS and the neurons still degenerated. With in vivo drug treatment, L-NAME failed to sufficiently inhibit NO as measured by nitrotyrosine labeling. In in vitro treatments, NOS inhibition was achieved by combining L-NAME with 7-NINA, but this increased PC death. These results indicate that +/Lc PCs do have increased markers for oxidative stress.
Extensive Studies of the Neutron Star Equation of State from the Deep Learning Inference with the Observational Data Augmentation
Creators: name: Fujimoto, Yuki
name: Fukushima, Kenji
name: Murase, Koichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We discuss deep learning inference for the neutron star equation of state (EoS) using the real observational data of the mass and the radius. We make a quantitative comparison between the conventional polynomial regression and the neural network approach for the EoS parametrization. For our deep learning method to incorporate uncertainties in observation, we augment the training data with noise fluctuations corresponding to observational uncertainties. Deduced EoSs can accommodate a weak first-order phase transition, and we make a histogram for likely first-order regions. We also find that our observational data augmentation has a byproduct to tame the overfitting behavior. To check the performance improved by the data augmentation, we set up a toy model as the simplest inference problem to recover a double-peaked function and monitor the validation loss. We conclude that the data augmentation could be a useful technique to evade the overfitting without tuning the neural network architecture such as inserting the dropout.
description: 45 pages, 25 figures
A Linked Aggregate Code for Processing Faces (Revised Version)
Creators: name: Lyons, Michael
name: Morikawa, Kazunori
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: I.2.0; K.4.0
subject: 68T01

description: A model of face representation, inspired by the biology of the visual system, is compared to experimental data on the perception of facial similarity. The face representation model uses aggregate primary visual cortex (V1) cell responses topographically linked to a grid covering the face, allowing comparison of shape and texture at corresponding points in two facial images. When a set of relatively similar faces was used as stimuli, this Linked Aggregate Code (LAC) predicted human performance in similarity judgment experiments. When faces of perceivable categories were used, dimensions such as apparent sex and race emerged from the LAC model without training. The dimensional structure of the LAC similarity measure for the mixed category task displayed some psychologically plausible features but also highlighted differences between the model and the human similarity judgements. The human judgements exhibited a racial perceptual bias that was not shared by the LAC model. The results suggest that the LAC based similarity measure may offer a fertile starting point for further modelling studies of face representation in higher visual areas, including studies of the development of biases in face perception.
description: 18 pages, 3 figures, 1 table
Telescope conjecture, idempotent ideals, and the transfinite radical
Creators: name: Stovicek, Jan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 18E35 (Primary) 16E30, 16G60 (Secondary)

description: We show that for an artin algebra $Λ$, the telescope conjecture for module categories is equivalent to certain idempotent ideals of mod-$Λ$ being generated by identity morphisms. As a consequence, we prove the conjecture for domestic standard selfinjective algebras and domestic special biserial algebras. We achieve this by showing that in any Krull-Schmidt category with local d.c.c. on ideals, any idempotent ideal is generated by identity maps and maps from the transfinite radical.
description: 14 pages, a comment on the Krull-Gabriel dimension added to section 4
Surreptitious, Evolving and Participative Ontology Development: An End-user Oriented Ontology Development Methodology
Creators: name: Bachore, Zelalem
Publisher: name: Maryland Shared Open Access Repository
Year: 2012
Subjects: Artificial intelligence
Methodology
Ontology
Ontology engineering
Semantic Web
Software engineering

description: Ontology not only is considered to be the backbone of the semantic web but also plays a significant role in distributed and heterogeneous information systems.  However, ontology still faces limited application and adoption to date. One of the major problems is that prevailing engineering-oriented methodologies for building ontologies do not actively involve end-users but instead rely on a small group of domain experts, which presents barriers to both knowledge elicitation and knowledge sharing. Based on an extensive and critical review of extant ontology development methodologies, a number of issues are identified that could hinder the involvement of end-users in the ontology development process. To address these issues, a surreptitious ontology development methodology is proposed in the dissertation. Based on the result of a usability study, the methodology is refined and a prototype system is developed to implement the methodology. Moreover, a theoretical model is built to predict the impact of surreptitious ontology development on common intentions and conceptual dynamics of the output ontology and commitment by end-users. To test the research model, a field experiment is conducted over a three-month period. The results of data analyses provide support for the proposed methodology in improving the quality and adoption intention of ontology.  This research has multifold theoretical and practical implications.
title: Secondary aortoduodenal fistula
Creators: name: Zabía Galíndez, Elena
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Vascular
subject: CT
subject: CT-Angiography
subject: Clinical Cases

description: Clinical History: A 56-year-old male patient presented to the ER in haemorrhagic shock with abdominal pain and vomiting fresh blood. His medical history included an open aortobiiliac bypass with a polyester graft to treat Leriche syndrome two years ago.

description: 56 years, male
Strength development and microstructure properties of slag activated with alkaline earth metal ions: a review study
Creators: name: Bahmani, Hadi
name: Mostofinejad, Davood
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: This article reviews the microstructure properties and strength development of slag activated with calcium oxide, calcium hydroxide, magnesium oxide, barium hydroxide, carbide slag, and calcined dolomite. X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and thermogravimetric/differential thermal analysis were used to evaluate the microstructure characteristics of activated slag. Furthermore, compressive strength test results were studied to evaluate the development of the strength of slag activated with alkaline earth metal ions. The results showed that slag samples activated with carbide slag and barium hydroxide, respectively, produced the lowest and highest compressive strengths. Moreover, among the activators of alkaline earth metal ions studied thus far, barium hydroxide produced the densest microstructure, lowest calcium-to-silicon ratio, and most hydration products. Slag activated with carbide slag produced the lowest calcium–silicate–hydrate (C–S–H) content compared with other activators of alkaline earth metal ions.
Supporting the Submission and Retrieval of Controversial Knowledge in a Deliberative, Decision-Making Context:  A Case Study in the Maryland Legislature
Creators: name: Goldman, Rich
Publisher: name: Maryland Shared Open Access Repository
Year: 2011
Subjects: controversial knowledge
deliberation
knowledge management
legislature
ontology
submission and retrieval

description: This dissertation aims to support the submission and retrieval of controversial knowledge in a deliberative, decision-making context.  Controversial knowledge is knowledge that competes with other knowledge to influence a decision maker, such as knowledge about how to reform the health care system or knowledge about the interpretation of financial data, and is found in domains ranging from law, business, politics, military, and medicine.   Three research questions are asked: what is a conceptual model of the information needs and design parameters for a KMS to support the submission and retrieval of controversial knowledge in a deliberative, decision-making context? (RQ1); what is a formal representation of the conceptual model for such a KMS? (RQ2); and what utility does a prototype KMS based upon the conceptual model and formal representation provide? (RQ3).   The first question is answered through a document describing validated insights based on observations, document analysis, and interviews.  It discusses the nature of controversial knowledge, the domain of the Maryland Legislature, the information desired about people and content, and design guides related to principles, challenges, features, and concerns about a system for supporting the submission and retrieval of controversial knowledge in the Legislature.  An ontology based upon a translation of the conceptual model into OWL classes, object properties, and data properties is created as the formal representation to answer the second research question.  Lastly, a working prototype is created using the conceptual model as a design guide, and the ontology as its knowledge representation.  Demonstration videos of this system were shown to legislators and lobbyists who evaluated its usefulness through perceived usefulness questionnaires and open-ended discussions.  The prototype was evaluated to be significantly useful along each of the usefulness factors examined.  The prototype and these utility results answer the third research question. These findings are significant.  They establish the reality of controversial knowledge and support updating the taxonomy of knowledge types to reflect its existence.   They provide a conceptual model, ontology, and prototype KMS for guiding the development of systems for supporting the submission and retrieval of controversial knowledge.  Third, they demonstrate that supporting controversial knowledge has perceived utility.
Jets and Disk-Winds from Pulsar Magnetospheres
Creators: name: Lovelace, Richard V. E.
name: Turner, Leaf
name: Romanova, Marina M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss axisymmetric force-free pulsar magnetospheres with magnetically collimated jets and a disk-wind obtained by numerical solution of the pulsar equation. This solution represents an alternative to the quasi-spherical wind solutions where a major part of the current flow is in a current sheet which is unstable to magnetic field annihilation.
description: 6 figures, accepted for publication in the ApJ
title: Portal-mesenteric-splenic vein thrombosis following laparoscopic gastric sleeve operation
Creators: name: Xu, Jack
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: CT
subject: Obstruction / Occlusion
subject: Clinical Cases

description: Clinical History: A 42-year-old female patient who underwent gastric sleeve operation 2 weeks prior, was admitted to the ER due to diffuse abdominal pain, worsening over the last 24 hours. Patient experienced no other GI symptoms except slight nausea.

description: 42 years, female
Detailed Archive Assessment, Proposed New Retail Quarter, Sheffield
Creators: name: Badcock, Anna
Publisher: name: Archaeology Data Service
Year: 2009

description: Archaeological Research and Consultancy at the University of Sheffield (ARCUS) unpublished report series, 1
description: Desk-based assessment that concentrates upon sites that are either currently open land or have standing buildings upon them and considers their buried archaeological potential. The areas omitted from this study are those which are known to have been subject to recent ground disturbance through the construction of modern basements or deep foundations. These areas include the fire station and the John Lewis building among others.
title: A case of macronodular hepatic tuberculosis in a young African male
Creators: name: Min, Wouter
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Liver
subject: CT
subject: MR
subject: Clinical Cases

description: Clinical History: A 31-year-old Kenyan man living in Belgium since one year presented with chronic right hypochondrial pain since five weeks. Further anamnesis revealed the presence of some episodes of fever and night sweats. Laboratory studies indicated a slightly increased C-reactive protein (7.0 mg/l) with normal hepatic and renal function.   

description: 31 years, male
Improving in-home appliance identification using fuzzy-neighbors-preserving analysis based QR-decomposition
Creators: name: Himeur, Yassine
name: Alsalemi, Abdullah
name: Bensaali, Faycal
name: Amira, Abbes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Computers and Society (cs.CY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper proposes a new appliance identification scheme by introducing a novel approach for extracting highly discriminative characteristic sets that can considerably distinguish between various appliance footprints. In this context, a precise and powerful characteristic projection technique depending on fuzzy-neighbors-preserving analysis based QR-decomposition (FNPA-QR) is applied on the extracted energy consumption time-domain features. The FNPA-QR aims to diminish the distance among the between class features and increase the gap among features of dissimilar categories. Following, a novel bagging decision tree (BDT) classifier is also designed to further improve the classification accuracy. The proposed technique is then validated on three appliance energy consumption datasets, which are collected at both low and high frequency. The practical results obtained point out the outstanding classification rate of the time-domain based FNPA-QR and BDT.
Archaeological Desk-based Assessment of Land and Buildings within the proposed New Retail Quarter, Sheffield
Creators: name: Stenton, M
name: Roberts, T
Publisher: name: Archaeology Data Service
Year: 2009

description: Archaeological Research and Consultancy at the University of Sheffield (ARCUS) unpublished report series, 1
description: The proposal area was located close to Sheffield city centre and was roughly bounded by Pinstone Street at the east with Trafalgar Street to the west and Wellington Street, Charter Row and Furnival Gate to the south. Almost thirty buildings or groups of buildings of 'special character' were located within the proposal area, along with three Listed Buildings. [Au(abr)]
title: Subacute combined spinal cord degeneration
Creators: name: Di Paola, Alessandro
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Neuroradiology
subject: CNS
subject: Neuroradiology spine
subject: MR
subject: Clinical Cases

description: Clinical History: A 61-year-old female patient presented for a 3-months period with hypoaesthesia of both lower limbs and gait disturbance without motor symptoms. 

On past medical history the patient referred a previous B12-deficiency and a chronic atrophic gastritis. 

Neurological examination objectified tactile hypoaesthesia of both lower limbs and normal pain perception and proprioception. 

No pathological findings were observed on LCR and blood samples. 

description: 61 years, female
Looking at the Fundamental Plane through a gravitational lens
Creators: name: Bertin, Giuseppe
name: Lombardi, Marco
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the Fundamental Plane of elliptical galaxies lensed by the gravitational field of a massive deflector (typically, a cluster of galaxies). We show that the Fundamental Plane relation provides a straightforward measurement of the projected mass distribution of the lens with a typical accuracy of ~0.15 in the dimensionless column density kappa. The proposed technique breaks the mass-sheet degeneracy completely and is thus expected to serve as an important complement to other lensing-based analyses. Moreover, its ability to measure directly the mass distribution on the small pencil beams that characterize the size of background galaxies may lead to crucial tests for current scenarios of structure formation.
description: ApJL, in press
ZAMONAVIY AXBOROT KOMMUNIKATSION TEXNOLOGIYALARINING TA'LIM JARAYONIDAGI O'RNI VA AHAMIYATI
Creators: name: Zarifov, Temurbek
Publisher: name: Zenodo
Year: 2024

description: Maqolada zamonaviy axborot kommunikatsion texnologiyalarning ta’lim tizimidagi o‘rni va ahamiyati haqida so‘z yuritilgan.
title:  Evolution of CT Images in a patient recovered from COVID-2019
Creators: name: Wu, Xingwang
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Chest imaging
subject: Lung
subject: Thorax
subject: CT
subject: Clinical Cases

description: Clinical History: A male patient, 22-years-old, fever (38.5C) and sore throat for 3 days. The patient had traveled within China in January 2020. Laboratory examination results were normal at admission.

description: 22 years, male
title: COVID-19 patient with initially negative RT-PCR
Creators: name: Wu, Xingwang
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Chest imaging
subject: Lung
subject: CT
subject: Clinical Cases

description: Clinical History: A female patient, 39-years-old, fever (38.1℃) and dry cough for seven days. A chest CT obtained two days after the onset of the symptoms shows nodular ground-glass opacity and consolidation (white arrows) scattered in the lower lobe of the left lung (Fig. 1a). Laboratory studies showed leukopenia (white blood cell count, 2.57×109/L, normal range 4.0×109-10.0×109/L) and lymphokine IL-6 level was increased (25.7 pg/ml, normal range 0.1-2.9 pg/ml). Several additional laboratory tests were abnormal, including C-reactive protein (CRP, 7.9 mg/L; normal range <5.0 mg/L), D-dimer concentration (0.71mg/L, normal range <0.5mg/L) and Serum Amyloid A (SSA) concentration (84.2mg/L, normal range <10.0mg/L).

description: 39 years, female
title: Breast implant associated fibromatosis
Creators: name: Bhatt, Naveen
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Breast imaging
subject: Breast
subject: Mammography
subject: MR
subject: Ultrasound
subject: Biopsy
subject: Diagnostic procedure
subject: Cancer
subject: Inflammation
subject: Clinical Cases

description: Clinical History: A 48-year-old female patient with cosmetic breast implants, over ten years ago, attended A&E with increase in the size of the left breast. There was clinical suspicion of implant rupture due to hard left breast, despite no convincing history of significant trauma. Patient was referred for ultrasound for further assessment.

description: 40 years, female
Quartic $L^p$-convergence of cubic Riemannian splines
Creators: name: Hardering, Hanne
name: Wirth, Benedikt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65D10, 65D05

description: We prove quartic convergence of cubic spline interpolation for curves into Riemannian manifolds as the grid size of the interpolation grid tends to zero. In contrast to cubic spline interpolation in Euclidean space, where this result is classical, the interpolation operator is no longer linear. Still, concepts from the linear setting may be generalized to the Riemannian case, where we try to use intrinsic Riemannian formulations and avoid charts as much as possible.
Wightman function and vacuum densities in de Sitter spacetime with toroidally compactified dimensions
Creators: name: Bellucci, S.
name: Saharian, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the Wightman function, the vacuum expectation values of the field square and the energy-momentum tensor for a scalar field with general curvature coupling parameter in $(D+1)$-dimensional de Sitter spacetime with an arbitrary number of compactified spatial dimensions. Both cases of periodicity and antiperiodicity conditions along the compactified dimensions are considered. Recurrence formulae are derived which express the vacuum expectation values for the dS spacetime of topology $\mathrm{R}^{p}\times (\mathrm{S}^{1})^{q}$ in the form of the sum of the vacuum expectation values in the topology $\mathrm{R}^{p+1}\times (\mathrm{S}^{1})^{q-1}$ and the part induced by the compactness of the $(p+1)$th spatial dimension. The behavior of the topological parts is investigated in various asymptotic regions of the parameters. In the early stages of the cosmological evolution the topological parts dominate the contribution in the expectation values due to the uncompactified dS part. In this limit the behavior of the topological parts does not depend on the curvature coupling parameter and coincides with that for a conformally coupled massless field. At late stages of the cosmological expansion the expectation values are dominated by the part corresponding to uncompactified dS spacetime. The vanishing of the topological parts is monotonic or oscillatory in dependence of the mass and the curvature coupling parameter of the field.
description: 17 pages, 4 figures
Non equilibrium dynamics of mixing, oscillations and equilibration: a model study
Creators: name: Boyanovsky, D.
name: Ho, C. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The non-equilibrium dynamics of mixing, oscillations and equilibration is studied in a field theory of flavored neutral mesons that effectively models two flavors of mixed neutrinos, in interaction with other mesons that represent a thermal bath of hadrons or quarks and charged leptons. This model describes the general features of neutrino mixing and relaxation via charged currents in a medium. The reduced density matrix and the non-equilibrium effective action that describes the propagation of neutrinos is obtained by integrating out the bath degrees of freedom. We obtain the dispersion relations, mixing angles and relaxation rates of ``neutrino'' quasiparticles. The dispersion relations and mixing angles are of the same form as those of neutrinos in the medium, and the relaxation rates are given by $Γ_1(k) = Γ_{ee}(k) \cos^2θ_m(k)+Γ_{μμ}(k)\sin^2θ_m(k) ; Γ_2(k)= Γ_{μμ}(k) \cos^2θ_m(k)+Γ_{ee}(k)\sin^2θ_m(k) $ where $Γ_{αα}(k)$ are the relaxation rates of the flavor fields in \emph{absence} of mixing, and $θ_m(k)$ is the mixing angle in the medium. A Weisskopf-Wigner approximation that describes the asymptotic time evolution in terms of a non-hermitian Hamiltonian is derived. At long time $>>Γ^{-1}_{1,2}$ ``neutrinos'' equilibrate with the bath. The equilibrium density matrix is nearly diagonal in the basis of eigenstates of an \emph{effective Hamiltonian that includes self-energy corrections in the medium}. The equilibration of ``sterile neutrinos'' via active-sterile mixing is discussed.
description: 28 pages, 3 figures, version to appear in PRD
Erklärung der Diözesanräte der Russischen Orthodoxen Kirche in Deutschland vom 29. November 2018
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 68 Nr. 2 (2019): Ökumenische Rundschau, Band 68, Heft 2
THE MOLECULAR PHYLOGENY OF STOMATOPOD CRUSTACEANS INFERRED USING COMBINED COI, 18S AND 28S RIBOSOMAL RNA GENES AND A STUDY OF THE EVOLUTION OF STOMATOPOD COMPOUND EYE
Creators: name: Zhang, Yunfei
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: 18s rDNA
28s rDNA
Character state Reconstruction
COI
Molecular Phylogeny
Stomatopod

description: The Stomatopoda make up an order of crustaceans that have evolved for more than 400 million years since they emerged from their haplocarid ancestors. In previous phylogenetic studies based on morphological characters, seven superfamilies and 19 families were erected for more than 400 extant stomatopod species. Prior to this study, no effort was made to investigate the interrelationships among stomatopod superfamilies using molecular markers. In this study, 18s rDNA, 28s rDNA? and COI genes of 25 stomatopod species from 10 families and four superfamilies were sequenced to build a molecular phylogeny for these stomatopods. Whereas some interfamilial relationships are in congruence with previous studies, the deep structure of the fully resolved molecular phylogeny reconstructed in the present study is fundamentally different. Two previously proposed sister clades, the smashers and the spearers, were collapsed in the molecular tree. Hemisquilidae, other than closely related to other families from the superfamily Gonodactyloidea, is sister to all of the stomatopod families included in this study. The three nannosquillids form a weakly supported clade, while Lysiosquillina maculata and Pseudosquilla ciliata are clustered into a clade with a moderately bootstrap value ( 70%). Squillidae is found to be sister to Parasquillidae, and they together sister to a clade including four families belonging to the previously erected superfamily Gonodactyloidea, i. e., Odontodactylidae, Protosquillidae, Takuidae, and Gonodactylidae. Based on this phylogeny, a study was conducted to investigate the evolution of the midband in stomatopod compound eye and the colored filters placed in the ommatidial rhabdoms in the midband rows two and three. This study also reviewed the variation of absorbance maxima ( ?max) of photopigments responsible for color vision in the context of the molecular phylogeny.
Stellungnahme des Metropoliten Augoustinos von Deutschland, Exarch von Zentraleuropa, zum BEschluss des Moskauer Patriarchats vom 16. Oktober 2018
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 68 Nr. 2 (2019): Ökumenische Rundschau, Band 68, Heft 2
They Came From the Deep in the Supernova: The Origin of TiC and Metal Subgrains in Presolar Graphite Grains
Creators: name: Lodders, Katharina
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new formation scenario for TiC and Fe,Ni-metal inclusions in presolar graphite grains of supernova origin is described. The mineralogy and chemistry require condensation of (Fe,Ni)-titanides from Fe, Ni, and Ti-rich gaseous ejecta, subsequent carburization to make TiC and metal, and encapsulation into graphite. Titanides only condense if Si is depleted relative to heavier mass elements, which requires alpha-rich freeze-out and a deep mass-cut for the supernova ejecta. This Si-poor core material must remain unmixed with other supernova zones until the titanides condensed. This can be accomplished by transport of core ejecta in bipolar jets through the major expanding supernova zone ejecta. If the jets stall in regions dominated by C-rich ejecta such as C-He zone where graphite condenses, thermochemically favored in situ carburization of the titanides - either before or during encapsulation into condensing graphite - leads to a TiC and metal composite. This scenario agrees with theoretical models and observations of asymmetric core collapse in supernovae that are associated with bipolar jets loaded with iron-peak elements.
description: 8 pages, 2 tables, 2 figures; Astrophysical Journal, in press
title: Intussusception secondary to a duplication cyst
Creators: name: Antón Jiménez, Alba
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Paediatric radiology
subject: Abdomen
subject: Ultrasound
subject: Diagnostic procedure
subject: Congenital
subject: Cysts
subject: Tissue characterisation
subject: Clinical Cases

description: Clinical History: 8-month-old male patient presented to the emergency room with acute abdominal pain and vomiting. He had no other significant signs or symptoms.

description: 8 months, male
title: Atypical sequence of elbow ossification with asymmetric appearance of proximal radius epiphyses: A Pathology mimicker
Creators: name: EL-Sobky, Tamer
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal system
subject: Paediatric
subject: Conventional radiography
subject: Clinical Cases

description: Clinical History: A 9-year-old boy presented with a painful left forearm and elbow after falling down yesterday. On examination there was diffuse swelling over the left forearm and elbow associated with tenderness especially at the mid-forearm. The range of motion in the forearm and elbow was guarded.   

description: 9 years, male
OPERAS Open Chats am 20.10.2022 zu Discovery und GoTriple
Creators: name: Töpfer, Marlen
name: Piel, Pattrick
name: De Santis, Luca
Publisher: name: Zenodo
Year: 2022
Subjects: OPERAS
GoTriple
Open Access
Discovery

description: Der OPERAS Discovery Service GoTriple wird in dem europäischen Projekt TRIPLE entwickelt. Dadurch soll die Auffindbarkeit von Open Access Publikationen und Forschungsdaten europaweit erleichtert werden. Mit dem Projektfortschritt sind nun auch viele zusätzliche Teile der GoTriple-Plattform nutzbar und so wurde hier ein Rundumschlag geliefert: Es wurden OPERAS und die GoTriple-Plattform vorgestellt, sowie auch technische Aspekte und die integrierten Features der Plattform angesprochen.
title: An atypical presentation of carpal tunnel syndrome
Creators: name: Verelst, Hendrik Frans Lydie
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Musculoskeletal system
subject: Anatomy
subject: Musculoskeletal soft tissue
subject: Vascular
subject: MR-Angiography
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Clinical Cases

description: Clinical History: A 45-year-old woman presented with persisting pain and numbness in the right wrist and hand for months. She had previously undergone an urgent percutaneous transluminal coronary angioplasty with stenting of the right circumflex artery for a non-STEMI infarction 8 months before, for which follow-up was uncomplicated. 

description: 45 years, female
On the Invariant Theory of Weingarten Surfaces in Euclidean Space
Creators: name: Ganchev, Georgi
name: Mihova, Vesselka
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A05, 53A10

description: We prove that any strongly regular Weingarten surface in Euclidean space carries locally geometric principal parameters. The basic theorem states that any strongly regular Weingarten surface is determined up to a motion by its structural functions and the normal curvature function satisfying a geometric differential equation. We apply these results to the special Weingarten surfaces: minimal surfaces, surfaces of constant mean curvature and surfaces of constant Gauss curvature.
description: 16 pages
Successive occurrences of quasi-circular ribbon flares in a fan-spine-like configuration involving hyperbolic flux tube
Creators: name: Mitra, Prabir K.
name: Joshi, Bhuwan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of the formation and evolution of a fan-spine-like configuration that developed over a complex photospheric configuration where dispersed negative polarity regions were surrounded by positive polarity regions. This unique photospheric configuration, analogous to the geological "atoll" shape, hosted four homologous flares within its boundary. Computation of the degree of squashing factor (Q) maps clearly revealed an elongated region of high Q-values between the inner and outer spine-like lines, implying the presence of an hyperbolic flux tube (HFT). The coronal region associated with the photospheric atoll configuration was distinctly identified in the form of a diffused dome-shaped bright structure directly observed in EUV images. A filament channel resided near the boundary of the atoll region. The activation and eruption of flux ropes from the filament channel led to the onset of four eruptive homologous quasi-circular ribbon flares within an interval of $\approx$11 hours. During the interval of the four flares, we observed continuous decay and cancellation of negative polarity flux within the atoll region. Accordingly, the apparent length of the HFT gradually reduced to a null-point-like configuration before the fourth flare. Prior to each flare, we observed localised brightening beneath the filaments which, together with flux cancellation, provided support for the tether-cutting model of solar eruption. The analysis of magnetic decay index revealed favourable conditions for the eruption, once the pre-activated flux ropes attained the critical heights for torus instability.
description: 20 pages, 11 figures, 3 tables; accepted for publication in Monthly Notices of the Royal Astronomical Society
title: A patient with a clinically suspected asthma that turned out to be a bronchial atresia
Creators: name: Vieira, Ana Catarina
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Chest imaging
subject: Lung
subject: Respiratory system
subject: CT
subject: Digital radiography
subject: Diagnostic procedure
subject: Congenital
subject: Clinical Cases

description: Clinical History: A 44-years-old female patient with a clinically suspected asthma and smoking habits underwent a clinical examination due to periods of mild shortness of breath, a chest radiograph was requested followed by a contrast enhanced chest-CT.

description: 44 years, female
Channel-Facilitated Molecular Transport Across Membranes: Attraction, Repulsion and Asymmetry
Creators: name: Kolomeisky, Anatoly B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Transport of molecules across membrane channels is investigated theoretically using exactly solvable discrete stochastic site-binding models. It is shown that the interaction potential between molecules and the channel has a strong effect on translocation dynamics. The presence of attractive binding sites in the pore accelerates the particle current for small concentrations outside of the membrane, while for large concentrations, surprisingly, repulsive binding sites produce the most optimal transport. In addition, asymmetry of the interaction potential also strongly influences the channel transport. The mechanism of these phenomena are discussed using the details of particle dynamics at the binding sites.
description: 8 pages, 4 figures
Universal Earthquake-Occurrence Jumps, Correlations with Time, and Anomalous Diffusion
Creators: name: Corral, Alvaro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Spatiotemporal properties of seismicity are investigated for a worldwide (WW) catalog and for Southern California in the stationary case (SC), showing a nearly universal scaling behavior. Distributions of distances between consecutive earthquakes (jumps) are magnitude independent and show two power-law regimes, separated by jump values about 200 km (WW) and 15 km (SC). Distributions of waiting times conditioned to the value of jumps show that both variables are correlated in general, but turn out to be independent when only short or long jumps are considered. Finally, diffusion profiles reflect the shape of the jump distribution.
description: Short paper
Non-equilibrium polaron hopping transport through DNA
Creators: name: Schmidt, Benjamin B.
name: Hettler, Matthias H.
name: Schön, Gerd
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the electronic transport through short DNA chains with various sequences of base pairs between voltage-biased leads. The strong coupling of the charge carriers to local vibrations of the base pairs leads to the formation of polarons, and in the relevant temperature range the transport is accomplished by sequential polaron hopping. We calculate the rates for these processes, extending what is known as the $P(E)$-theory of single-electron tunneling to the situation with site-specific local oscillators. The non-equilibrium charge rearrangement along the DNA leads to sequence-dependent current thresholds of the `semi-conducting' current-voltage characteristics and, except for symmetric sequences, to rectifying behavior. The current is thermally activated with activation energy approaching for voltages above the threshold the bulk value (polaron shift or reorganization energy). Our results are consistent with some recent experiments.
description: 8 pages, 5 figures, submitted to PRB, References added
Video Relation Detection with Trajectory-aware Multi-modal Features
Creators: name: Xie, Wentao
name: Ren, Guanghui
name: Liu, Si
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Video relation detection problem refers to the detection of the relationship between different objects in videos, such as spatial relationship and action relationship. In this paper, we present video relation detection with trajectory-aware multi-modal features to solve this task. Considering the complexity of doing visual relation detection in videos, we decompose this task into three sub-tasks: object detection, trajectory proposal and relation prediction. We use the state-of-the-art object detection method to ensure the accuracy of object trajectory detection and multi-modal feature representation to help the prediction of relation between objects. Our method won the first place on the video relation detection task of Video Relation Understanding Grand Challenge in ACM Multimedia 2020 with 11.74\% mAP, which surpasses other methods by a large margin.