377,470 Works

A QUALIDADE DE VIDA NO INDIVÍDUO COM PERDA AUDITIVA

Paulo Jorge, Quintela Cardoso Do Carmo, Paulo Cardoso Do Carmo, Rui Pimenta & Pedro Lopes Ferreira

The impact of grazing by mute swans (Cygnus olor) on the biomass of chalkstream macrophytes

Thomas A Porteus, Michael J Short, Jonathan C Reynolds, Dominic N Stubbing, Suzanne M Richardson & Nicholas J Aebischer

Acceptance letter 256

Jacqueline Carvalho-Peixoto, Lara Azevedo Smiderle, Janclei Coutinho, Rogério Santos Aguiar, Alessandra F Tabanela Sant 'Ana, Lucia Maria Jaeger De Carvalho, Nancy Dos & Santos Barbi

Climatic mass balance of the ice cap Vestfonna, Svalbard: A spatially distributed assessment using ERA-Interim and MODIS data

Marco Möller, Roman Finkelnburg, Matthias Braun, Regine Hock, Ulf Jonsell, Veijo A Pohjola, Dieter Scherer & Christoph Schneider
The ice cap Vestfonna in the northern Svalbard archipelago is one of the largest ice bodies of the European Arctic (∼2400 km2), but little is known about its mass balance. We model the climatic mass balance of the ice cap for the period September 2000 to August 2009 on a daily basis. Ablation is calculated by a spatially distributed temperature-radiation-index melt model. Air temperature forcing is provided by ERA-Interim data that is downscaled using data...

Recensioni

Battaglia Marco

Persuasive discourse and language planning in Ireland

Gray Geoffrey

Journeys to Rome and Jerusalem in Old Norse-Icelandic Sagas

D. Shafer John

Optical Coherence Tomography

Jacob Madsen & Mahmoud Tawfieq

Hydropower and power

Adriana Suárez Delucchi

Inertial Measurement Unit Fall Detection Dataset

Omar Aziz & Stephen Robinovitch
Inertial Measurement Unit Fall Detection Dataset (IMU Dataset) is a dataset devised to benchmark fall detection and prediction algorithms based on acceleration, angular velocity and magnetic fields of body-worn APDM Opal IMU sensors at 7 body locations (right ankle, left ankle, right thigh, left thigh, head, sternum, and waist). Detailed description of the dataset and column names are in README.text file. Use of this dataset in publications must be acknowledged by referencing the following publication:...

Perturbation theory for Hamiltonian matrices and the distance to bounded-realness

Rafikul Alam, Shreemayee Bora, Michael Karow, Volker Mehrmann & Julio Moro
Motivated by the analysis of passive control systems, we undertake a detailed perturbation analysis of Hamiltonian matrices that have eigenvalues on the imaginary axis. We construct minimal Hamiltonian perturbations that move and coalesce eigenvalues of opposite sign characteristic to form multiple eigenvalues with mixed sign characteristics, which are then moved from the imaginary axis to specific locations in the complex plane by small Hamiltonian perturbations. We also present a numerical method to compute upper bounds...

μ-values and spectral value sets for linear perturbation classes defined by a scalar product

Michael Karow
We study the variation of the spectrum of matrices under perturbations which are self- or skew-adjoint with respect to a scalar product. Computable formulas are given for the associated μ-values. The results can be used to calculate spectral value sets for the perturbation classes under consideration. We discuss the special case of complex Hamiltonian perturbations of a Hamiltonian matrix in detail.

Structured pseudospectra for small perturbations

Michael Karow
In this paper we study the shape and growth of structured pseudospectra for small matrix perturbations of the form $A \leadsto A_\Delta=A+B\Delta C$, $\Delta \in \boldsymbol{\Delta}$, $\|\Delta\|\leq \delta$. It is shown that the properly scaled pseudospectra components converge to nontrivial limit sets as $\delta$ tends to 0. We discuss the relationship of these limit sets with $\mu$-values and structured eigenvalue condition numbers for multiple eigenvalues.

Correlation between phenolic compounds and antioxidant activity in brown rice before and after parboiling

Fabiana Kawassaki Hirashima, Angela Sueko Mikaro, Isabel Louro Massaretto, José Alberto Noldin & Ursula Maria Lanfer-Marquez

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