Resultats globals: 22 registres trobats en 0.02 segons.
Articles, 16 registres trobats
Documents de recerca, 6 registres trobats
Articles 16 registres trobats  1 - 10següent  anar al registre:
8 p, 3.1 MB 2 × 2 charge density wave in single-layer TiTe₂ / Guster, Bogdan (Institut Català de Nanociència i Nanotecnologia) ; Robles, Roberto (Institut Català de Nanociència i Nanotecnologia) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ; Canadell Casanova, Enric (Institut de Ciència de Materials de Barcelona) ; Ordejón Rontomé, Pablo (Institut Català de Nanociència i Nanotecnologia)
A density functional theory study concerning the origin of the recently reported 2 × 2 charge density wave (CDW) instability in single-layer TiTe₂ is reported. It is shown that, whereas calculations employing the semi-local functional PBE favor the undistorted structure, the hybrid functional HSE06 correctly predicts a 2 × 2 distortion. [...]
2019 - 10.1088/2053-1583/aaf20b
2D Materials, Vol. 6, issue 1 (Jan. 2019) , art. 15027  
14 p, 3.2 MB Weakly-Correlated nature of ferromagnetism in nonsymmorphic CrO2 revealed by bulk-sensitive soft-X-ray ARPES / Bisti, Federico (ALBA Laboratori de Llum de Sincrotró) ; Rogalev, Victor A. (Paul Scherrer Institute) ; Karolak, Michael (Universität Würzburg) ; Paul, S. (University of Alabama) ; Gupta, Arunava (University of Alabama) ; Schmitt, Thorsten (Paul Scherrer Institute) ; Güntherodt, G. (RWTH Aachen University) ; Eyert, Volker (Materials Design SARL) ; Sangiovanni, Giorgio (Universität Würzburg) ; Profeta, Gianni (CNR-SPIN L'Aquila) ; Strocov, Vladimir N. (Paul Scherrer Institute)
Chromium dioxide CrO belongs to a class of materials called ferromagnetic half-metals, whose peculiar aspect is that they act as a metal in one spin orientation and as a semiconductor or insulator in the opposite one. [...]
2017 - 10.1103/PhysRevX.7.041067
Physical review X, Vol. 7, Issue 4 (December 2017) , art. 041067  
14 p, 745.8 KB Functional comparison of XPF missense mutations associated to multiple DNA repair disorders / Marín, Maria (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Ramírez de Haro, Ma. José (María José) (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Aza-Carmona, Miriam (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Jia, Nan (Nagoya University. Research Institute of Environmental Medicine) ; Ogi, Tomoo (Nagoya University. Research Institute of Environmental Medicine) ; Bogliolo, Massimo (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Surrallés i Calonge, Jordi (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
XPF endonuclease is one of the most important DNA repair proteins. Encoded by XPF/ERCC4, XPF provides the enzymatic activity of XPF-ERCC1 heterodimer, an endonuclease that incises at the 5' side of various DNA lesions. [...]
2019 - 10.3390/genes10010060
Genes, Vol. 10, Núm. 1 (January 2019) , art. 60  
20 p, 266.7 KB Goodness-of-fit test for randomly censored data based on maximum correlation / Strzalkowska-Kominiak, Ewa (Cracow University of Technology (Polònia). Mathematical Institute) ; Grané, Aurea (Universidad Carlos III de Madrid. Departamento de Estadística)
In this paper we study a goodness-of-fit test based on the maximum correlation coefficient, in the context of randomly censored data. We construct a new test statistic under general right- censoring and prove its asymptotic properties. [...]
2017 - 10.2436/20.8080.02.54
SORT : statistics and operations research transactions, Vol. 41 Núm. 1 (January-June 2017) , p. 119-138 (Articles)  
51 p, 1.4 MB Multidimensional screening in a monopolistic insurance market / Olivella, Pau (Universitat Autònoma de Barcelona. Departament d'Economia i d'Història Econòmica) ; Schroyen, Fred (Norwegian School of Economics)
We consider a population of individuals who differ in two dimensions, their risk type (expected loss) and their risk aversion, and solve for the profit-maximising menu of contracts that a monopolistic insurer puts out on the market. [...]
2014 - 10.1057/grir.2014.1
The Geneva Risk and Insurance Review, Vol. 39 (2014) , p. 90-130  
22 p, 237.6 KB Likelihood-based inference for the power regression model / Martínez-Flórez, Guillermo (Universidad de Córdoba. Departamento de Matemáticas y Estadística) ; Bolfarine, Heleno (Universidade de São Paulo. Departamento de Estadística) ; Gómez, Héctor W. (Universidad de Antofagasta (Antofagasta, Xile). Departamento de Matemáticas)
In this paper we investigate an extension of the power-normal model, called the alpha-power model and specialize it to linear and nonlinear regression models, with and without correlated errors. Maximum likelihood estimation is considered with explicit derivation of the observed and expected Fisher information matrices. [...]
SORT : statistics and operations research transactions, Vol. 39 Núm. 2 (July-December 2015) , p. 187-208 (Articles)  
16 p, 942.4 KB Small area estimation of poverty indicators under partitioned area-level time models / Morales, Domingo (Universidad Miguel Hernández de Elche) ; Pagliarella, Maria Chiara (Universita degli Studi di Siena. Dipartimento di Economia Politica e Statistica) ; Salvatore, Renato (Universita degli Studi di Siena. Dipartimento di Economia Politica e Statistica)
This paper deals with small area estimation of poverty indicators. Small area estimators of these quantities are derived from partitioned time-dependent area-level linear mixed models. The introduced models are useful for modelling the different behaviour of the target variable by sex or any other dichotomic characteristic. [...]
SORT : statistics and operations research transactions, Vol. 39 Núm. 1 (January-June 2015) , p. 19-34 (Articles)  
9 p, 460.6 KB Correlation modeling for compression of computed tomography images / Muñoz Gómez, Juan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Bartrina Rapesta, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Marcellin, Michael W. (University of Arizona) ; Serra-Sagristà, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Abstract—Computed Tomography (CT) is a noninvasive medical test obtained via a series of X-ray exposures resulting in 3D images that aid medical diagnosis. Previous approaches for coding such 3D images propose to employ multi-component transforms to exploit correlation among CT slices, but these approaches do not always improve coding performance with respect to a simpler slice-by-slice coding approach. [...]
2013 - 10.1109/JBHI.2013.2264595
IEEE Journal of Biomedical and Health Informatics, Vol. 17, Issue 5 (Set. 2013) , p. 928-935  
42 p, 806.0 KB Analysing visual receptive fields through generalised additive models with interactions / Rodríguez-Álvarez, María Xosé ; Cadarso-Suárez, Carmen ; González, Francisco
Visual receptive fields (RFs) are small areas of the visual field where a stimulus induces a responses of a particular neuron from the visual system. RFs can be mapped using reverse crosscorrelation technique, which produces raw matrices containing both spatial and temporal information about the RF. [...]
SORT : statistics and operations research transactions, Vol. 36, Núm. 1 (January-June 2012) , p. 3-44  
10 p, 116.6 KB Asymptotic study of canonical correlation analysis: from matrix and analytic approach to operator and tensor approach / Fine, Jeanne (Université Paul Sabatier (France))
Asymptotic study of canonical correlation analysis gives the opportunity to present the different steps of an asymptotic study and to show the interest of an operator and tensor approach of multidimensional asymptotic statistics rather than the classical, matrix and analytic approach. [...]
SORT : statistics and operations research transactions, Vol. 27, Núm. 2 (July-December 2003) , p. 165-174  

Articles : 16 registres trobats   1 - 10següent  anar al registre:
Documents de recerca 6 registres trobats  
29 p, 724.4 KB Correlation Between Ultrasonography and Magnetic Resonance Imaging with Pathology-Measured Tumor Size in Women with Recently Diagnosed Breast Cancer. Optimizing tumor-size estimation with imaging techniques for higher precision / Brenner Anidjar, Rony-David ; Luna Tomás, Miguel-Ángel, dir. ; Universitat Autònoma de Barcelona. Facultat de Medicina
The use of Breast-MRI in surgical planning of breast cancer is a field of controversy due to its high sensitivity but low specificity, alongside with overestimation of tumor-size. It has been proven many factors contribute to this overestimation. [...]
El uso de Resonancia Magnética Mamaria (RMM) en la planificación pre-quirúrgica del cáncer de mama es controvertido dada la alta sensibilidad y baja especificidad, junto con la sobreestimación del tamaño tumoral. [...]

Graduat o Graduada en Medicina [1192]  
38 p, 873.4 KB Foreign Language Acquisition : the Interrelationship between Motivation and Anxiety and its Effects on Learners / Ríos Ortiz, Laura ; Capdevila i Batet, Montserrat, dir. (Universitat Autònoma de Barcelona, Departament de Filologia Anglesa i de Germanística) ; Universitat Autònoma de Barcelona. Facultat de Filosofia i Lletres
Motivation and anxiety are two of the many Individual Differences which may affect the acquisition of English as a foreign language. Although they have been vastly researched on separately, their interrelationship is not as clear. [...]
La motivació i la ansietat son dues de les diferències individuals que poden afectar l'adquisició de l'anglès com a llengua estrangera. Encara que les dues han estat molt estudiades per separat, la seva relació no és tan clara. [...]

Graduat o Graduada en Estudis Anglesos [801]  
226 p, 4.2 MB Factores genéticos asociados a la degeneración lobar frontotemporal. Análisis de susceptibilidad genética y correlación fenotipo-genotipo / Hernández Ruiz, Mª Isabel ; Ruiz Laza, Agustín, dir. ; Boada Rovira, Mercé, dir. ; Blesa Gonzalez, Rafael, dir. ; Álvarez Sabin, José ; Universitat Autònoma de Barcelona. Departament de Medicina
La Degeneración Lobar Frontotemporal es un grupo heterogéneo de enfermedades, la segunda causa más frecuente de demencia en edad presenil y la que presenta el mayor número de casos hereditarios. Se caracteriza por una gran variabilidad clínica, genética e histopatológica. [...]
Frontotemporal Lobar Degeneration is a heterogeneous group of disorders, the second most frequent cause of early dementia and the one with the highest number of inherited cases. It is characterized by considerable variability in clinical, genetic and histopathologic features. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2015  
196 p, 2.6 MB Cross-correlating spectroscopic and photometric galaxy surveys / Borstad Eriksen, Martin ; Gaztañaga Balbás, Enrique, dir. ; Massó i Soler, Eduard, 1954- tutor (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física
En esta tesis se estudia el acotamiento en los paraámetros cosmología al combinar observaciones en catálogos de galaxias espectroscópicas y fotométricos. Los catálogos fotométricos miden las distorsiones de lente gravitacional débil (WL), mientras que los catalogos espectroscópicos, con más alta precisión en la información de redshift (o corriento al rojo), son ideales para el estudio de distorsiones espaciales de redshift (RSD). [...]
In this thesis we study constraining cosmology when combining spectroscopic and photometric galaxy survey. The photometric survey measures galaxy shape distortions from Weak Lensing (WL), while high precision redshift information makes spectroscopic surveys ideal for redshift space distortions (RSD). [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2014  
8 p, 1.2 MB GNSS-R cross correlation : diseño, implementación y optimización de la correlación cruzada / Calvin Palomares, Carlos ; Moure López, Juan Carlos, dir. (Universitat Autònoma de Barcelona. Departament d'Arquitectura de Computadors i Sistemes Operatius) ; Universitat Autònoma de Barcelona. Escola d'Enginyeria
Las señales de los Sistemas de Navegación Global por Satélite pueden ser utilizadas para determinar la altura del mar. Para llevar a cabo estos experimentos es necesario una implementación eficiente de la correlación cruzada, que permita el procesamiento en tiempo real de las señales. [...]
Global Navigation Systems Satellite's signals can be used to determine the height of the sea. In order to carry out these experiments is required an efficient implementation of the crosscorrelation, which allows realtime processing of signals. [...]
Els senyals dels sistemes de navegació global per satèl·lit poden ser utilitzats per determinar l'altura del mar. Per dur a terme aquests experiments és necessari una implementació eficient de la correlació creuada, que permeti el processament en temps real dels senyals. [...]

Enginyeria Informàtica [958]  
30 p, 154.2 KB How to use the standard model with own data? / Ferri Vidal, Antoni ; Bermúdez, Lluís ; Guillén, Montserrat (Universitat de Barcelona. Departament d'Econometria) ; Xarxa de Referència en Economia Aplicada (XREAP)
In this work discuss the use of the standard model for the calculation of the solvency capital requirement (SCR) when the company aims to use the specific parameters of the model on the basis of the experience of its portfolio. [...]
Xarxa de Referència en Economia Aplicada (XREAP) 2012 (XREAP ; 2012-03)  

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