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Ciencias (1134)

El litoral de Andalucía: estrategias para la producción, gestión y difusión web de líneas de costa y ...<br/>tasas de erosión a medio-largo plazo para las playas de la costa andaluza. José Ojeda Zújar
El litoral de Andalucía: estrategias para la producción, gestión y difusión web de líneas de costa y ...
tasas de erosión a medio-largo plazo para las playas de la costa andaluza. José Ojeda Zújar
medio ambienteEspañol11 oct. 2017934Presentació a càrrec de José Ojeda Zújar, de la Universidad de Sevilla. Ponència realitzada dintre del Bloc 1 (El Litoral), el dia 6 d'octubre de 2016 a la Aula Magna de la Facultat de Filosofia, Geografia i Història.
Primers estudis de Limnologia a la càtedra de Biologia: El Llac de Banyoles
Primers estudis de Limnologia a la càtedra de Biologia: El Llac de Banyoles
biologíaCatalán10 oct. 2017843Xerrada a càrrec de Dolors Planas (Universitat del Quebec) i Elena Roget i Ramon Moreno Amich (Universitat de Girona) en el marc del cicle de conferències amb motiu dels 50 anys del Departament d’Ecologia de la Universitat de Barcelona; el dia 6 d'octubre de 2017 al Seminari de la Secció d'Ecologia de la Facultat de Biologia.Mes informació a:
Reportatge de la VI Jornada Ambiental
Reportatge de la VI Jornada Ambiental
actos académicos e ins...Catalán29 sep. 2017437Reportatge de la VI Jornada Ambiental sota el títol 'La importància de l'energia solar a la indústria i les llars, per què és tan difícil implantar energies renovables?'el día 31 de maig de 2017 a l'Aula Magna de la Universitat de Barcelona.
Reportatge de la VI Jornada Ambiental (versió curta)
Reportatge de la VI Jornada Ambiental (versió curta)
medio ambienteCatalán29 sep. 2017450Versió reduïda del reportatge de la VI Jornada Ambiental sota el títol 'La importància de l'energia solar a la indústria i les llars, per què és tan difícil implantar energies renovables?'el día 31 de maig de 2017 a l'Aula Magna de la Universitat de Barcelona.
Extraction of bacteriophages from sludges, soils and treated biowastes
Extraction of bacteriophages from sludges, soils and treated biowastes
biologíaInglés21 sep. 2017650This video presents a procedure for the elution of bacteriophages from sewage sludge, compost and bio-waste samples. The user should, prior to analysis, validate the method for the specific type of sample to be analyzed: sludges, soils and bio-wastes. Recorded in the laboratories ...
Preparation of culture reference material
Preparation of culture reference material
biologíaInglés21 sep. 2017552This video presents the procedure for prepatation of the host bacteria working culture stock and the bacteriophage control aliquots as culture reference materials for enumeration of somatic coliphages.Recorded in the laboratories of the MARS group in the department of Genetics, Microbiology and Statistics, Faculty of Biology of University of Barcelona. Funded by the MARS group, the Water ...
Bacteriophages: Preparation of a highly concentrated control stock
Bacteriophages: Preparation of a highly concentrated control stock
biologíaInglés21 sep. 2017572Procedure recorded in the laboratories of the MARS group in the department of Genetics, Microbiology and Statistics, Faculty of Biology of University of Barcelona. Funded by the MARS group, the Water Research Institute of the University of Barcelona and the Environmental Laboratory, City of Santa Cruz (California, USA).
Detection and enumeration of somatic coliphages
Detection and enumeration of somatic coliphages
biologíaInglés21 sep. 2017582This video presents a method for the detection and enumeration of somatic coliphages by incubating the sample with an appropiate host strain. The method is applicable to all kinds of water, sediments and sludge extracts, after dilution. The method is also applicable to shellfish extracts.Recorded in the laboratories of the MARS group in the department of Genetics, Microbiology and ...
ACM Europe Conference 2017
ACM Europe Conference 2017
ingeniería y tecnologíaInglés13 sep. 20172336The ACM Europe Council will hold an international event from the 7th to the 8th of September 2017 in Barcelona. The event is hosted by the Barcelona Supercomputing Center (BSC).The ACM Europe Conference will be a truly international event, bringing together computer scientists and practitioners from around the world. The two main themes of the conference are Cybersecurity and ...
EcoClima UB 2040 2ºC
EcoClima UB 2040 2ºC
biologíaCatalán12 sep. 20171965Conclusions de l'assignatura 'Diagnòstic del Canvi Climàtic' de la Universitat de Barcelona. Mitjançant els vídeos, alumnes i professors de l'assignatura exploren les causes, conseqüències i solucions al ràpid canvi climàtic viscut a la Terra.
Microscopic Description of Systems of Points with Coulomb-type Interactions
Microscopic Description of Systems of Points with Coulomb-type Interactions
matemáticasInglés5 sep. 2017832We are interested in systems of points with Coulomb, logarithmic or Riesz interactions (i.e. inverse powers of the distance). They arise in various settings: an instance is the study of Fekete points in approximation theory, another is the classical log gas or Coulomb gas which in some cases happens to be a random matrix ensemble, another is vortices in superconductors, superfluids or ...
Completely Positive Semidefinite Matrices: Conic Approximations and Matrix Factorization Ranks
Completely Positive Semidefinite Matrices: Conic Approximations and Matrix Factorization Ranks
matemáticasInglés5 sep. 2017911The completely positive semidefinite cone is a new matrix cone, which consists of all the symmetric matrices (of a given size) that admit a Gram factorization by positive semidefinite matrices of any size. This cone can thus be seen as a non-commutative analogue of the classical completely positive cone, replacing factorizations by nonnegative vectors (aka diagonal psd matrices) by arbitrary ...
Structure Tensors
Structure Tensors
matemáticasInglés5 sep. 2017938We show that in many instances, at the heart of a problem in numerical computation sits a special 3-tensor, the structure tensor of the problem that uniquely determines its underlying algebraic structure. For example, the Grothendieck constant, which plays an important role in unique games conjecture and SDP relaxations of NP-hard problems, arises as the spectral norm of such a structure ...
Fourier-like Bases and Integrable Probability
Fourier-like Bases and Integrable Probability
matemáticasInglés5 sep. 2017985No information.Presentation by: Alexei Borodin. MIT, USA
Information Complexity and Applications
Information Complexity and Applications
matemáticasInglés5 sep. 2017886Over the past two decades, information theory has reemerged within computational complexity theory as a mathematical tool for obtaining unconditional lower bounds in a number of models, including streaming algorithms, data structures, and communication complexity. Many of these applications can be systematized and extended via the study of information complexity – which treats information ...
Adaptive High-Order Methods for Elliptic Problems: Convergence and Optimality
Adaptive High-Order Methods for Elliptic Problems: Convergence and Optimality
matemáticasInglés5 sep. 2017889Adaptive algorithms for h-type finite element discretizations of elliptic problems are by now well understood, as far as their convergence and optimality properties are concerned.The design and analysis of adaptive algorithms for hp-type discretizations poses new challenges. Indeed, the choice between applying a mesh refinement or a polynomial enrichment is a delicate stage in the ...
Dynamic Formulation of Optimal Transportation and Variational Relaxation of Euler Equations
Dynamic Formulation of Optimal Transportation and Variational Relaxation of Euler Equations
matemáticasInglés5 sep. 2017994We will briefly recall the classical Optimal Transportation Framework and its Dynamic relaxations. We will show the link between these Dynamic formulation and the so-called Multi-Marginal extension of Optimal Transportation. We will then describe the so-called Iterative Proportional Fitting Procedure (IPFP aka Sinkhorn method) which can be efficiently applied to the multi-marginal OT setting. ...
Variational Discretizations of Gauge Field Theories Using Group-Equivariant Interpolation Spaces
Variational Discretizations of Gauge Field Theories Using Group-Equivariant Interpolation Spaces
matemáticasInglés5 sep. 2017943Variational integrators are geometric structure-preserving numerical methods that preserve the symplectic structure, satisfy a discrete Noether's theorem, and exhibit exhibit excellent long-time energy stability properties. An exact discrete Lagrangian arises from Jacobi's solution of the Hamilton-Jacobi equation, and it generates the exact flow of a Lagrangian system. By approximating the ...
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