cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DDVV-type inequality for skew-symmetric matrices and Simons-type inequality for Riemannian submersions
Creators: name: Ge, Jianquan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C24, 15A45

description: In this paper, we will first derive a DDVV-type optimal inequality for real skew-symmetric matrices, then we apply it to establish a Simons-type integral inequality for Riemannian submersions with totally geodesic fibres and Yang-Mills horizontal distributions. In this way, we show phenomenons of duality between Submanifold geometry and Riemannnian submersion, particularly between second fundamental form of a submanifold and integrability tensor of a Riemannian submersion.
description: 27 pages
«Los olvidados» e «La aventura del Muni». Due viaggiatori spagnoli in Guinea Equatoriale
Creators: name: Calabrese, Giuliana
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Analisi comparata di due recenti libri di viaggio in Guinea Equatoriale scritti da Eduardo Soto-Trillo e Miguel Gutiérrez Garitano.

Comparative analysis of two travel books recently written by Eduardo Soto-Trillo and Miguel Gutiérrez Garitano.
description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
Multiphase, non-spherical gas accretion onto a black hole
Creators: name: Barai, Paramita
name: Proga, Daniel
name: Nagamine, Kentaro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: (Abridged) We investigate non-spherical behavior of gas accreting onto a central supermassive black hole performing simulations using the SPH code GADGET-3 including radiative cooling and heating by the central X-ray source. As found in earlier 1D studies, our 3D simulations show that the accretion mode depends on the X-ray luminosity (L_X) for a fixed density at infinity and accretion efficiency. In the low L_X limit, gas accretes in a stable, spherically symmetric fashion. In the high L_X limit, the inner gas is significantly heated up and expands, reducing the central mass inflow rate. The expanding gas can turn into a strong enough outflow capable of expelling most of the gas at larger radii. For some intermediate L_X, the accretion flow becomes unstable developing prominent non-spherical features, the key reason for which is thermal instability (TI) as shown by our analyses. Small perturbations of the initially spherically symmetric accretion flow that is heated by the intermediate L_X quickly grow to form cold and dense clumps surrounded by overheated low density regions. The cold clumps continue their inward motion forming filamentary structures; while the hot infalling gas slows down because of buoyancy and can even start outflowing through the channels in between the filaments. We found that the ratio between the mass inflow rates of the cold and hot gas is a dynamical quantity depending on several factors: time, spatial location, and L_X; and ranges between 0 and 4. We briefly discuss astrophysical implications of such TI-driven fragmentation of accreting gas on the formation of clouds in narrow and broad line regions of AGN, the formation of stars, and the observed variability of the AGN luminiosity.
description: 25 pages, 13 figures. Version accepted for publication in MNRAS. Uploaded version contains low-resolution color figures. Complete paper with high-resolution figures can be found at: http://adlibitum.oats.inaf.it/barai/AllPages/Images-Movies/BHaccr_MultiPhase.pdf
Phosphorylation and O-GlcNAcylation of the PHF-1 Epitope of Tau Protein Induce Local Conformational Changes of the C-Terminus and Modulate Tau Self-Assembly Into Fibrillar Aggregates
Creators: name: Cantrelle, François-Xavier
name: Loyens, Anne
name: Trivelli, Xavier
name: Reimann, Oliver
name: Despres, Clément
name: Gandhi, Neha
name: Hackenberger, Christian
name: Landrieu, Isabelle
name: Smet-Nocca, Caroline
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Alzheimer’s disease
subject: microtubule-associated protein tau
subject: phosphorylation
subject: O-GlcNAc glycosylation
subject: protein aggregation
subject: NMR spectroscopy
subject: 610 Medizin und Gesundheit

description: Phosphorylation of the neuronal microtubule-associated Tau protein plays a critical role in the aggregation process leading to the formation of insoluble intraneuronal fibrils within Alzheimer’s disease (AD) brains. In recent years, other posttranslational modifications (PTMs) have been highlighted in the regulation of Tau (dys)functions. Among these PTMs, the O-β-linked N-acetylglucosaminylation (O-GlcNAcylation) modulates Tau phosphorylation and aggregation. We here focus on the role of the PHF-1 phospho-epitope of Tau C-terminal domain that is hyperphosphorylated in AD (at pS396/pS404) and encompasses S400 as the major O-GlcNAc site of Tau while two additional O-GlcNAc sites were found in the extreme C-terminus at S412 and S413. Using high resolution NMR spectroscopy, we showed that the O-GlcNAc glycosylation reduces phosphorylation of PHF-1 epitope by GSK3β alone or after priming by CDK2/cyclin A. Furthermore, investigations of the impact of PTMs on local conformation performed in small peptides highlight the role of S404 phosphorylation in inducing helical propensity in the region downstream pS404 that is exacerbated by other phosphorylations of PHF-1 epitope at S396 and S400, or O-GlcNAcylation of S400. Finally, the role of phosphorylation and O-GlcNAcylation of PHF-1 epitope was probed in in-vitro fibrillization assays in which O-GlcNAcylation slows down the rate of fibrillar assembly while GSK3β phosphorylation stimulates aggregation counteracting the effect of glycosylation.
Additional file 1 of Metabolic syndrome score as an indicator in a predictive nomogram for lymph node metastasis in endometrial cancer
Creators: name: Feng, Xuan
name: Li, Xing Chen
name: Yang, Xiao
name: Cheng, Yuan
name: Dong, Yang Yang
name: Wang, Jing Yuan
name: Zhou, Jing Yi
name: Wang, Jian Liu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Metabolic scoring system.
Calibration Method for Particulate Matter Low-Cost Sensors Used in Ambient Air Quality Monitoring and Research
Creators: name: Venkatraman Jagatha, Janani
name: Klausnitzer, André
name: Miriam, Chacón-Mateos
name: Laquai, Bernd
name: Nieuwkoop, Evert
name: Van Der Mark, Peter
name: Vogt, Ulrich
name: Schneider, Christoph
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: air pollution
subject: low-cost sensors
subject: particulate matter
subject: quantile mapping
subject: mobile measurements
subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: 910 Geografie und Reisen

description: Over the last decade, manufacturers have come forth with cost-effective sensors for measuring ambient and indoor particulate matter concentration. What these sensors make up for in cost efficiency, they lack in reliability of the measured data due to their sensitivities to temperature and relative humidity. These weaknesses are especially evident when it comes to portable or mobile measurement setups. In recent years many studies have been conducted to assess the possibilities and limitations of these sensors, however mostly restricted to stationary measurements. This study reviews the published literature until 2020 on cost-effective sensors, summarizes the recommendations of experts in the field based on their experiences, and outlines the quantile-mapping methodology to calibrate low-cost sensors in mobile applications. Compared to the commonly used linear regression method, quantile mapping retains the spatial characteristics of the measurements, although a common correction factor cannot be determined. We conclude that quantile mapping can be a useful calibration methodology for mobile measurements given a well-elaborated measurement plan assures providing the necessary data.
title: DEPRECATED: Working memory and human reasoning : an individual differences approach
Creators: name: Capon, Alison Jayne
Publisher: name: University of Plymouth
Year: 2000

description: Experiments 1-3 investigated the relationship between working memory and syllogistic and five-ten-n series spatial inference. A secondary aim was to replicate the findings of Shah and Miyake (1996) who suggested the use of separate central resources of working memory for spatial and verbal ability. The correlational analysis showed that the complex verbal and spatial working memory span tasks were associated together and consistently predicted reasoning performance in both verbal and visual modalities. The confirmatory factor analysis showed that three factors best accounted for the data -a verbal, a spatial, and a general resource. All the span tasks and most of the reasoning tasks significantly and consistently loaded the general factor. Experiments 4-6 investigated the relationship between working memory and a range of reasoning tasks - identified as either propositional. spatial, or quantifiable tasks. These experiments were based on the work of Stanovich and West (1998) who found that a range of reasoning tasks were predicted by cognitive ability and a reasoner's thinking style. The correlational anaylsis showed that the complex verbal and spatial working memory span tasks were associated together and consistently predicted reasoning perforinance. Two clusters of reasoning task emerged from the correlational analysis - one cluster related to the propositional and simple spatial reasoning tasks, whilst the other related to the quantifiable and complex spatial reasoning tasks. The confin-natory factor analysis showed that four factors best accounted for the data -a verbal, a spatial, a general, and a thinking style resource. All the span tasks and the reasoning tasks loaded the general factor, and most of the reasoning tasks further loaded the thinking disposition factor. These results are discussed in light of models of workino memory, theories of reasoning, and how to best characterise factor 3 (executive function) and factor 4 (thinking style) from tile factor analysis.
«Romancero. Canti narrativi della Spagna medievale», introd. e note di Giuseppe Di Stefano, trad. di Enrico Di Pastena, con testo a fronte. Venezia, Marsilio, 2011, 443 pp.
Creators: name: Cassol, Alessandro
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
Juan de Robles, «Tardes del Alcázar. Doctrina para el perfecto vasallo», a cura di Antonio Castro Díaz, Ayuntamiento de Sevilla, 2011, 328 pp.
Creators: name: Calabrese, Giuliana
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
title: Neuroimaging of Hipoxic - Isquemic Brain Injury after Cardiac Arrest.
Creators: name: Bello Martínez, ELENA
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Ischaemia / Infarction
subject: Diagnostic procedure
subject: MR-Spectroscopy
subject: MR
subject: CT
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To evaluate the main findings in hipoxic brain injury after postnatal cardiac arrest, both in CT and MRI. To document the timing of the imaging findings, as theycan change rapidlyafter the event, ranging from the earliest to the...
Cosmological Hysteresis and the Cyclic Universe
Creators: name: Sahni, Varun
name: Toporensky, Aleksey
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A Universe filled with a homogeneous scalar field exhibits `Cosmological hysteresis'. Cosmological hysteresis is caused by the asymmetry in the equation of state during expansion and contraction. This asymmetry results in the formation of a hysteresis loop: $\oint pdV$, whose value can be non-vanishing during each oscillatory cycle. For flat potentials, a negative value of the hysteresis loop leads to the increase in amplitude of consecutive cycles and to a universe with older and larger successive cycles. Such a universe appears to possess an arrow of time even though entropy production is absent and all of the equations respect time-reversal symmetry ! Cosmological hysteresis appears to be widespread and exists for a large class of scalar field potentials and mechanisms for making the universe bounce. For steep potentials, the value of the hysteresis loop can be positive as well as negative. The expansion factor in this case displays quasi-periodic behaviour in which successive cycles can be both larger as well as smaller than previous ones. This quasi-regular pattern resembles the phenomenon of BEATS displayed by acoustic systems. Remarkably, the expression relating the increase/decrease in oscillatory cycles to the quantum of hysteresis appears to be model independent. The cyclic scenario is extended to spatially anisotropic models and it is shown that the anisotropy density decreases during successive cycles if the hysteresis loop is negative.
description: 31 pages, 8 figures. Matches version published in Phys Rev D85, 123542 (2012)
title:  Dental Hygiene Students' Perceptions of Themselves and the Typical Dental Hygienist in Regard to Feminism
Creators: name: Berg, Christine M.
Publisher: name: Old Dominion University Libraries
Year: 1980

description: The purpose of this investigation was to assess dental hygiene students' perceptions of themselves and the "typical dental hygienist" in regard to feminism. The accessible population was composed of all first-year, second-year, and post-certificate dental hygiene students at Old Dominion University, Norfolk, Virginia, and the University of Minnesota, Minneapolis, Minnesota.

Data were organized according to a 3x3x3 factorial research design with age, Q.P.A., and educational level as the assigned independent variables. The dependent variable, students' perceptions of themselves and the "typical dental hygienist," was measured by the Feminism II Scale.

Repeated measures analysis of variance yielded no statistically significant difference between dental hygiene students' perception of themselves and students' perception of the "typical dental hygienist." Additionally, no statistically significant interaction was observed among educational levels, age groups, and Q.P.A. groups as measured by Feminism II scores. All comparisons were at the 0.05 level of significance.
title: Intramedullary spinal cord tumors – a brief review
Creators: name: Jayasree, Lekshmy
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Comparative studies
subject: MR
subject: Neuroradiology spine
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To differentiate between intramedullary and extramedullary locationof the tumors of spine. To characterize and differentiate between the various intramedullary tumors of the spinal cord. Imaging findings of some of the common intramedullary tumors...
Lattice loop quantum cosmology: scalar perturbations
Creators: name: Wilson-Ewing, Edward
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the scalar modes of linear perturbations in loop quantum cosmology. This is done on a lattice where each cell is taken to be homogeneous and isotropic and can be quantized via standard homogeneous loop quantum cosmology techniques. The appropriate interactions between nearby cells are included in the Hamiltonian in order to obtain the correct physics. It is shown that the quantum theory is anomaly-free: the scalar and diffeomorphism constraint operators weakly commute with the Hamiltonian. Finally, the effective theory encoding the leading order quantum gravity corrections is derived and is shown to give the same holonomy-corrected effective equations that have been obtained in previous studies.
description: 32 pages, v2: Minor changes
Dario Puccini e Rafael Alberti, «Corrispondenza inedita (1951-1969)», a cura di Gabriele Morelli, con una testimonianza di Stefania Piccinato Puccini, Milano, Viennepierre, 2009, 163 pp.
Creators: name: Manera, Danilo
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
title: Retracing the Novel: Amatory Fiction and the Novel's Rise
Creators: name: Alderfer, Sarah Elizabeth
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2002

description: Arguing against. Ian Watt's The Rise of the Novel and other academically accepted accounts of the history of the novel, this thesis positions amatory fiction at the forefront of novel's traditional genealogy by comparing amatory fiction with the Gothic novel in order to link the two genres outside of realistic fiction such as Pamela. Using Love in Excess by Eliza Haywood and The Monk by Matthew Lewis as representative examples of amatory fiction and Gothicism, respectively, this thesis ultimately establishes a connection between the three genres. It examines the similarities in amatory fiction and Gothicism through their use of similar plot conventions, their use of narrative pace, their use of point of view as a means of psychological exploration, and their reliance on their reader's voyeuristic desires and the voyeuristic principles of reading. Following these connections, this thesis argues for a relationship between amatory fiction and realism based on realism's explicit use or co-optation of the techniques in amatory fiction.
Vicente Luis Mora, «La luz nueva. Singularidades en la narrativa española actual», Córdoba, Berenice, 2007, 255 pp.
Creators: name: Cattaneo, Simone
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
title: Pancreatic Pseudotumors: Lesions that can mimic primary pancreatic neoplasms.
Creators: name: Verussa, Mário
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Education
subject: MR
subject: CT
subject: Pancreas
subject: Gastrointestinal tract
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Review pancreas anatomy, its relationship with adjacent structures and anatomical variants. Present pathological conditions that, if misdiagnosed, could lead to unnecessary imaging work-up and procedures. Make radiologists familiar with lesions and...
Anosov representations: Domains of discontinuity and applications
Creators: name: Guichard, Olivier
name: Wienhard, Anna
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: The notion of Anosov representations has been introduced by Labourie in his study of the Hitchin component for SL(n,R). Subsequently, Anosov representations have been studied mainly for surface groups, in particular in the context of higher Teichmueller spaces, and for lattices in SO(1,n). In this article we extend the notion of Anosov representations to representations of arbitrary word hyperbolic groups and start the systematic study of their geometric properties. In particular, given an Anosov representation of $Γ$ into G we explicitly construct open subsets of compact G-spaces, on which $Γ$ acts properly discontinuously and with compact quotient. As a consequence we show that higher Teichmueller spaces parametrize locally homogeneous geometric structures on compact manifolds. We also obtain applications regarding (non-standard) compact Clifford-Klein forms and compactifications of locally symmetric spaces of infinite volume.
description: 63 pages, accepted for publication in Inventiones Mathematicae
Hélia Correia, «Lillias Fraser», traduzione dal portoghese di Guia Boni, Roma, Cavallo di Ferro, 2010, 254 pp.
Creators: name: Bennici, Milani
name: Milani, Ada
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
title: Can Radiomics and Machine Learning differentiate Oropharyngeal Cancer from Lymphatic Hyperplasia?
Creators: name: Caprioli, Simone
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Experimental investigations
subject: MR
subject: Oncology
subject: Head and neck
subject: Hyperplasia / Hypertrophy
subject: Tissue characterisation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Since its introduction in clinical practice, MRI played a fundamental role in the diagnosis of Head and Neck cancer. DWI is an MR technique that studies molecular diffusion, inparticularthe Brownian motion of water protons in biologic tissue....
Armando Baptista-Bastos, «José Saramago. Un ritratto appassionato», traduzione di Daniele Petruccioli, Roma, L’Asino d’Oro Edizioni, 2011, 162 pp.
Creators: name: Scaramucci, Marianna
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
Form Factors for Lambda_b -> Lambda Transitions in SCET
Creators: name: Feldmann, Thorsten
name: Yip, Matthew W. Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a systematic discussion of Lambda_b -> Lambda transition form factors in the framework of soft-collinear effective theory (SCET). The universal soft form factor, which enters the symmetry relations in the limit of large recoil energy, is calculated from a sum-rule analysis of a suitable SCET correlation function. The same method is applied to derive the leading corrections from hard-collinear gluon exchange at first order in the strong coupling constant. We present numerical estimates for form factors and form-factor ratios and their impact on decay observables in Lambda_b -> Lambda mu^+ mu^- decays.
description: 2+29 pages, 9 figures. Corrections in Sections 3.2 and 4 and Appendix D.1. Conclusions do not change. Erratum to appear in PRD
title: Evidence Based Medicine in paediatric pulmonary infections: the role of imaging
Creators: name: Desiderio, Carla
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pathology
subject: Inflammation
subject: Infection
subject: Radiation safety
subject: Diagnostic procedure
subject: Decision analysis
subject: Ultrasound
subject: MR
subject: CT
subject: Paediatric
subject: Management
subject: Lung

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To define and integrate the state-of-art imaging and image analysis of the most common lower respiratory infections in pediatric patients, by gathering the best available scientific evidence and applying it to create efficient diagnostic...
Random permutation matrices under the generalized Ewens measure
Creators: name: Hughes, Christopher
name: Najnudel, Joseph
name: Nikeghbali, Ashkan
name: Zeindler, Dirk
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a generalization of the Ewens measure for the symmetric group, calculating moments of the characteristic polynomial and similar multiplicative statistics. In addition, we study the asymptotic behavior of linear statistics (such as the trace of a permutation matrix or of a wreath product) under this new measure.
description: Published in at http://dx.doi.org/10.1214/12-AAP862 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Imaging and sinonasal malignant tumors : surgeon expectations.
Creators: name: Hriz, hasna
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Tissue characterisation
subject: Cancer
subject: Staging
subject: Education
subject: MR
subject: CT
subject: Oncology
subject: Ear / Nose / Throat
subject: Anatomy

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1- Anatomical sum-up about sinonasalcavities and their critical variants. 2- Illustration of some cases of sinonasaltumours and emphasize the complementarity of the CT& MRI couple in the preoperative...
Spin quantum correlations of relativistic particles
Creators: name: Saldanha, Pablo L.
name: Vedral, Vlatko
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that a pair of massive relativistic spin-1/2 particles prepared in a maximally entangled spin state in general is not capable of maximally violating the Clauser-Horne-Shimony-Holt (CHSH) version of Bell's inequalities without a post-selection of the particles momenta, representing a major difference in relation to non-relativistic systems. This occurs because the quantization axis of the measurements performed on each particle depends on the particle velocity, such that it is not possible to define a reduced density matrix for the particles spin. We also show that the amount of violation of the CHSH inequality depends on the reference frame, and that in some frames the inequality may not be violated.
description: 4 pages, 3 figures. The introductory part has changed. More arguments against the definition of a reduced spin density matrix for a relativistic system are presented
Marcio Veloz Maggiolo, «La verdadera historia de Aladino», Santo Domingo, Alfaguara Juvenil y Editora Nacional, 2008, 112 pp.; «Las bodas de Caperucita», Santo Domingo, Fundación Educarte - Mediabyte, 2008, 52 pp.
Creators: name: Manera, Danilo
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas: Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
Lattice formulation of two-dimensional N=(2,2) super Yang-Mills with SU(N) gauge group
Creators: name: Kanamori, Issaku
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We propose a lattice model for two-dimensional SU(N) N=(2,2) super Yang-Mills model. We start from the CKKU model for this system, which is valid only for U(N) gauge group. We give a reduction of U(1) part keeping a part of supersymmetry. In order to suppress artifact vacua, we use an admissibility condition.
description: 16 pages, 3 figures; v2: typo crrected; v3: 18 pages, a version to appear in JHEP
The contribution of different domains of connexin 43 to cytoskeletal rearrangements in B-lymphocytes
Creators: name: Falk, Letitia Louise Elizabeth
Publisher: name: University of British Columbia
Year: 2013

description: B-cells change shape in response to crosslinking of the B-cell antigen receptor (BCR). BCR signaling induces cytoskeletal rearrangements that result in cell spreading to improve antigen accumulation and B-cell activation. It has previously been shown that the gap junction protein connexin43 (Cx43) is both necessary and sufficient for BCR-mediated B-cell spreading, as well as other B-cell responses that depend upon cytoskeletal rearrangement. Since it was found that the C-terminal domain (CT) of Cx43 was required for these effects, we hypothesized that the molecular mechanism by which the CT influences BCR-mediated spreading may be due to regulation of channel permeability or alternately, by acting as an adaptor for cytoskeletal organization. To address the role of Cx43 in forming channels, we blocked channel function both pharmacologically with channel-blocking drugs and by expressing Cx43 mutant T154A in a Cx43-null plasmacytoma cell line. Treatment with channel blocking drugs did not prevent BCR-mediated B-cell spreading, and hemichannel (HC) activity was not detected in B-cells as measured by a dye-uptake assay. Thus we conclude that Cx43 influences B-cell spreading by a channel-independent mechanism and that the Cx43 CT may act as a scaffold for protein interactions. In support of this idea, the channel-blocking point mutation T154A caused B-cell spreading defects even in the absence of functional HCs. Further characterization of this mutation suggests that it impedes cell spreading due to a distorted conformation of the Cx43 CT domain. J558μm3 cells expressing Cx43 containing a point mutation of the putative Src-binding tyrosine (Y265F and Y265D) were unable to spread, highlighting the importance of a single residue of Cx43 for BCR-mediated B-cell spreading. These findings highlight the CT domain as important for Cx43’s influence on B-cell spreading, and pave the way for further experiments on the CT tail with the goal of better understanding the molecular mechanism underlying the role of Cx43 in B-cells.
Painel Projeto GeoCalor
Creators: name: Porto, Bruno
name: Alves, Hendesson
name: Gurgel, Helen
name: Bezerra, Amarílis
name: Alves, Eucilene
name: Lima e Silva, Eliane
name: Jorge de Miranda, Marina
Publisher: name: Zenodo
Year: 2024

description: Trata-se de um Dashbboard construído através da plataforma Genially no âmbito do Projeto GeoCalor. O painel apresenta o projeto, bem como alguns resultados iniciais desenvolvidos a partir de revisão bibliográfica e análise esploratória rápida de dados climatológicos de estações convencionais. As referências encontram-se no próprio painel e ele pode ser acessado através do link: https://view.genially.com/66aba05a3abb05a4fe7b8c09/interactive-content-ondas-de-calor
title: Renal tumor invading the inferior vena cava - almost, but not exclusively malignant
Creators: name: Craciunoiu, Maria-Cristina
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Veins / Vena cava
subject: Kidney
subject: Abdomen
subject: CT
subject: MR
subject: Catheter venography
subject: Diagnostic procedure
subject: Complications
subject: Surgery
subject: Haemorrhage
subject: Cancer
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: -brief reminder of a benign, but sometimes aggressive pathology: renal AML (angiomyolipoma), resembling malignancy due to its IVC (inferior vena cava) extension; -listing the main features of AMLs, depending on the imaging technique; -discussing...
Motion Tracking in Undergraduate Physics Laboratories with the Wii Remote
Creators: name: Tomarken, Spencer L.
name: Simons, Dallas R.
name: Helms, Richard W.
name: Johns, Will E.
name: Schriver, Kenneth E.
name: Webster, Medford S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We report the incorporation of the Wiimote, a light-tracking remote control device, into two undergraduate-level experiments. We provide an overview of the Wiimote's basic functions and a systematic analysis of its motion tracking capabilities. We describe the Wiimote's use in measuring conservation of linear and angular momentum on an air table, and measuring the gravitational constant with the classic Cavendish torsion pendulum. Our results show that Wiimote is a simple and affordable way to streamline the data acquisition process and produce results that are generally superior to those obtained with conventional techniques.
description: 5 pages, 6 figures, 1 table
Francisco Zamora Loboch, «Conspiración en el green (El informe Abayak)», Madrid, Sial / Casa de África, 2009, 415 pp.
Creators: name: Marmonti, Alessia
Publisher: name: Università degli Studi di Milano
Year: 2012

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 1 (2011)
Generalized Dicke States
Creators: name: Hartmann, Stephan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Quantum master equations are an important tool in quantum optics and quantum information theory. For systems comprising a small to medium number of atoms (or qubits), the non-truncated equations are usually solved numerically. In this paper, we present a group-theoretical superoperator method that helps solving these equations. To do so, we exploit the SU(4)-symmetry of the respective Lindblad operator and construct basis states that generalize the well-known Dicke states. This allows us to solve various problems analytically and to considerably reduce the complexity of problems that can only be solved numerically. Finally, we present three examples that illustrate the proposed method.
description: 13 pages, 2 figures, 2 tables
title: The pediatric knee: Beyond traumatic injuries
Creators: name: Arias Medina, Ana
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal joint
subject: Paediatric
subject: Extremities
subject: MR
subject: Conventional radiography
subject: CT
subject: Education
subject: Infection
subject: Inflammation
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: -To remember the anatomy of the knee in the pediatric age. -To review the bone maturation process and its normal appearance. -To describe diverse non-traumatic entities that can affect the knee, with special interest in magnetic resonance (MRI)...
title: Where it all began: lending of last resort and the Bank of England during the Overend, Gurney Panic of 1866
Creators: name: Flandreau, Marc
name: Ugolini, Stefano
Publisher: name: Graduate Institute of International and Development Studies
publisherIdentifier: https://ror.org/007ygn379
publisherIdentifierScheme: ROR
Year: 2011

description: HEID Working Paper ; 4/2011
Evaluation of the Strong Coupling Constant alpha_s Using the ATLAS Inclusive Jet Cross-Section Data
Creators: name: Malaescu, Bogdan
name: Starovoitov, Pavel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We perform a determination of the strong coupling constant using the latest ATLAS inclusive jet cross section data, from proton-proton collisions at sqrt{s}=7 TeV, and their full information on the bin-to-bin correlations. Several procedures for combining the statistical information from the different data inputs are studied and compared. The theoretical prediction is obtained using NLO QCD, and it also includes non-perturbative corrections. Our determination uses inputs with transverse momenta between 45 and 600 GeV, the running of the strong coupling being also tested in this range. Good agreement is observed when comparing our result with the world average at the Z-boson scale, as well as with the most recent results from the Tevatron.
description: 15 pages, 6 figures. Extended discussion of non-perturbative corrections. Matches version published in EPJ C
Seraph for piano and string orchestra
Creators: name: Stark, Bradley
Publisher: name: University of British Columbia
Year: 2013

description: Seraph is a fifteen minute composition for piano and string orchestra. In addition to traditional musical techniques such as variation and passacaglia, the work employs a distinctive approach to phrase structure, form, harmony, and compositional technique. An ascending natural minor scale serves as the main theme while other melodies, textures, harmonies, and motives interact in counterpoint with the theme. In addition, the theme undergoes its own developmental transformations and modifications, and it influences a distinctive harmonic language featuring extended, non-traditional chords and progressions that rarely repeat. Musical phrases and secondary melodies are unusual in length and mostly avoid expectations of cadence, while metric instability occurs through frequent meter changes. In addition to variation technique, the musical structure features episodes that contrast in compositional design through the development of less prominent motives and differences in approach to harmony. The piano part was partly composed through the use of transcribed improvisation, which serves as a basis for the harmonic and motivic structures heard throughout the composition. The piano part also features complex rhythmic divisions and technical demands for the performer while interacting with the orchestra in a variety of textures. As a whole, the work possesses several features which contribute to an original style and aesthetic.
Le parole dell'arte. Ovvero quando l'opera, da sola, non basta
Creators: name: Rotili, Manrica
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 2012

description: This paper moves from those works of art that include the killing, the ill-treatment and the use of dead animals and therefore it starts from the artifacts whose status of art is difficult to understand in order to discuss the role and power of the theory in the art world. It considers in particular the philosophy of art of Arthur Danto to reflect on the necessity of the relationship between work and interpretation in contemporary art. If the current art has earned (hardly) the freedom from formal constraints, from the ethical and aesthetic standards that until the avant-garde art have regulated the activity of the artist, this art turns out to be, at the same time, a kind of art even more dependent from an exegesis, from an explanation and an interpretation that have to shed light on its meaning, its purpose, its intention. Yet if it is true that what makes something a work of art is its relationship with the context formed by the history and by theory of art and if it is true that an interpretation that is based on this type of knowledge allows a physical object to be seen as a work of art, it is also true that the frames that appeal to history tend not to clearly define the "distinctive characteristics" of art, leaving unresolved, in essence, the question posed by the problem of the recognition criteria.
description: Lebenswelt. Aesthetics and philosophy of experience., No 2 (2012)
La fenomenologia del volere: Husserl, Pfänder e Geiger
Creators: name: Ubiali, Marta
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 2012

description: The will is one of the most consistent focuses of much of Husserl’s work beginning with the Logische Untersuchungen and continuing through his reflections in the 1930s. Any phenomenology of experience must account for the fact that every moment of our lives is marked by tension of will. Such a study, therefore, combines many important and interrelated issues, such as the problematic relationship between the voluntary and the involuntary sphere of the ego’s life. Over the history of the phenomenological movement, Husserl was not the only one to dedicate so much attention to the phenomenon of will. In addition to outlining Husserl’s phenomenology, this paper explores the phenomenological analyses of Alexander Pfänder and Moritz Geiger. In the wake of the traditional philosophical concept of the will, Pfänder considers the will as a dimension of pure activity and self-determination, whose peculiar trait is the so-called geistiger Schlag. Instead, Geiger points out the complexity of the voluntary dimension and advances the paradoxical hypothesis of the existence of a non-experienced will. Husserl moves deeper into this latter direction when he highlights the overall dimension of the will, which permeates the entire life of the ego even in the form of the Willenpassivität.
description: Lebenswelt. Aesthetics and philosophy of experience., No 2 (2012)
title: Perfusion MRI of pediatric cerebellar tumors
Creators: name: Zarrouk, Bilel
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Cancer
subject: Diagnostic procedure
subject: Ablation procedures
subject: MR-Diffusion/Perfusion
subject: MR
subject: Paediatric
subject: Oncology
subject: Neuroradiology brain

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: MRI is currently the most sensitive (95%) and specific (97%) morphological examination technique for the detection of pediatric brain tumours. The usefulness of the diffusion sequence in the diagnosis of pediatric cerebellar tumours has already been...
Forum on John Hyman, "The objective eye"
Creators: name: Hyman, Ed. By S. Chiodo
name: Z. Adams, P. Spinicci, M. Budd, W. Davies,
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 2012

description: ...
description: Lebenswelt. Aesthetics and philosophy of experience., No 2 (2012)
Red Giant Branch Bump Brightness and Number Counts in 72 Galactic Globular Clusters Observed with the Hubble Space Telescope
Creators: name: Nataf, David M.
name: Gould, Andrew P.
name: Pinsonneault, Marc H.
name: Udalski, Andrzej
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the broadest and most precise empirical investigation of red giant branch bump (RGBB) brightness and number counts ever conducted. We implement a new method and use data from two \textit{Hubble Space Telescope (HST)} globular cluster (GC) surveys to measure the brightness and star counts of the RGBB in 72 GCs. The brightness is measured to a precision better than 0.01 mag while the precision in number counts reaches 10%. The position of the main-sequence turnoff (MSTO) and the number of horizontal branch (HB) stars are used as comparisons where appropriate. Several independent scientific conclusions are newly possible with our parametrization of the RGBB. Both brightness and number counts are shown to have second parameters in addition to their strong dependence on metallicity. The RGBBs are found to be anomalous in the GCs NGC 2808, 5286, 6388 and 6441, likely due to the presence of multiple populations. Finally, we use our empirical calibration to predict the properties of the Galactic bulge RGBB if the assumption of similar stellar physics for the bulge and Galactic GC system holds. The RGBB properties for the bulge are shown to differ from those of the Galactic GC system, with the former having lower number counts, a lower brightness dispersion and a brighter peak luminosity than would be expected from the latter. This discrepancy is well explained by the Galactic bulge having a higher helium abundance than expected from GCs, $Δ$Y$\sim +$0.06 at the median metallicity.
description: 66 pages, 21 figures, 7 tables, Accepted for publication in The Astrophysical Journal, modified following referee report
Mitidjospirone, a new spirodioxynaphthalene and GC-MS screening of secondary metabolites produced by strains of Lasiodiplodia mitidjana associated to Citrus sinensis dieback
Creators: name: Salvatore, Maria Michela
name: DellaGreca, Marina
name: Nicoletti, Rosario
name: Salvatore, Francesco
name: Tuzi, Angela
name: De Tommaso, Gaetano
name: Alves, Artur
name: Mahamedi, Alla Eddine
name: Berraf-Tebbal, Akila
name: Andolfi, Anna
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Mitidjospirone, a new spiridioxynaphthalene, was isolated from the mycelial extract of a strain of Lasiodiplodia mitidjana, a recently described species belonging to the family Botryosphaeriaceae. Its structure was elucidated by extensive spectroscopic analysis and the absolute configuration was determined by electronic circular dichroism (ECD) experiment. Furthermore, several known compounds were identified during the screening of secondary metabolites produced by four strains of L. mitidjana.
title: Mesenteric and peritoneal masses: imaging findings and differential diagnosis
Creators: name: Vilares, Ana
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Inflammation
subject: Infection
subject: Diagnostic procedure
subject: CT
subject: Peritoneum
subject: Mesentery
subject: Anatomy

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the normal anatomy of the peritoneum and mesentery; To describe the clinical characteristics and illustrate the CT appearances of tumors and tumor-like lesions that primarily and secondarily involve the peritoneum and mesentery, with focus...
title: DEPRECATED: An evaluation of desktop video conferencing for one-to-one tutorial support in mathematics
Creators: name: Walker, Brian Joseph
Publisher: name: University of Plymouth
Year: 2005

description: Merged with duplicate record: 10026.1/683 on 01.02.2017 by CS (TIS)
description: The growth in Flexible and Distributed Learning will, it is believed, lead to a need for a more innovative and flexible approach to the way support is offered to students. This study which was conducted with students at a Further Education College looks at the effectiveness of using Desktop Video Conferencing (DVC) to provide support to students studying mathematics at a number of different levels. The research design adopted the concept of triangulation with three different approaches being used. The first strand of the methodology was the collection of statistical data for all students re-sitting GCSE mathematics to develop a model to predict the learning outcome for students. The second strand was the extensive use of questionnaires and interviews with students receiving learning support. The final strand was the application of discourse analysis to recordings of both face-toface and DVe tutorials in order that a comparison could be made between them. To do this it was necessary to develop a research tool to record both verbal and non-verbal dialogue. The main conclusion from the study was that there was no identifiable difference in learning outcome between tutorials conducted face-to-face and those conducted using DVe. A number of positive advantages of using DVe emerged during the course of the study. These included the fact that most students preferred tutorials using DVC as they found the environment less threatening than when sitting next to a tutor. Other advantages resulted from the use of the electronic Whiteboard, these included being able to give students quicker feedback, if appropriate.