Institution

# Loughborough University

Education•Loughborough, England, United Kingdom•

About: Loughborough University is a(n) education organization based out in Loughborough, England, United Kingdom. It is known for research contribution in the topic(s): Population & Poison control. The organization has 18187 authors who have published 45106 publication(s) receiving 1224688 citation(s). The organization is also known as: University of Loughborough.

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##### Papers

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TL;DR: This paper describes how accurate off-lattice ascent paths can be represented with respect to the grid points, and maintains the efficient linear scaling of an earlier version of the algorithm, and eliminates a tendency for the Bader surfaces to be aligned along the grid directions.

Abstract: A computational method for partitioning a charge density grid into Bader volumes is presented which is efficient, robust, and scales linearly with the number of grid points. The partitioning algorithm follows the steepest ascent paths along the charge density gradient from grid point to grid point until a charge density maximum is reached. In this paper, we describe how accurate off-lattice ascent paths can be represented with respect to the grid points. This improvement maintains the efficient linear scaling of an earlier version of the algorithm, and eliminates a tendency for the Bader surfaces to be aligned along the grid directions. As the algorithm assigns grid points to charge density maxima, subsequent paths are terminated when they reach previously assigned grid points. It is this grid-based approach which gives the algorithm its efficiency, and allows for the analysis of the large grids generated from plane-wave-based density functional theory calculations.

4,300 citations

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TL;DR: This article examined the nature of formative indicators and discussed ways in which the quality of the formative measures can be assessed, and illustrated the proposed procedures with empirical data, with the aim to enhance researchers' understanding of the forms and assist them in their index construction efforts.

Abstract: Although the methodological literature is replete with advice regarding the development and validation of multi-item scales based on reflective measures, the issue of index construction using formative measures has received little attention. The authors seek to address this gap by (1) examining the nature of formative indicators, (2) discussing ways in which the quality of formative measures can be assessed, and (3) illustrating the proposed procedures with empirical data. The aim is to enhance researchers’ understanding of formative measures and assist them in their index construction efforts.

4,007 citations

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31 Dec 1968TL;DR: In this article, the authors introduce a system of linear and quasi-linear equations with principal part in divergence (PCI) in the form of systems of linear, quasilinear and general systems.

Abstract: Introductory material Auxiliary propositions Linear equations with discontinuous coefficients Linear equations with smooth coefficients Quasi-linear equations with principal part in divergence form Quasi-linear equations of general form Systems of linear and quasi-linear equations Bibliography.

3,663 citations

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19 May 2003TL;DR: A survey of the known solutions of Einstein's field equations for vacuum, Einstein-Maxwell, pure radiation and perfect fluid sources can be found in this paper, where the solutions are ordered by their symmetry group, their algebraic structure (Petrov type) or other invariant properties such as special subspaces or tensor fields and embedding properties.

Abstract: A paperback edition of a classic text, this book gives a unique survey of the known solutions of Einstein's field equations for vacuum, Einstein-Maxwell, pure radiation and perfect fluid sources. It introduces the foundations of differential geometry and Riemannian geometry and the methods used to characterize, find or construct solutions. The solutions are then considered, ordered by their symmetry group, their algebraic structure (Petrov type) or other invariant properties such as special subspaces or tensor fields and embedding properties. Includes all the developments in the field since the first edition and contains six completely new chapters, covering topics including generation methods and their application, colliding waves, classification of metrics by invariants and treatments of homothetic motions. This book is an important resource for graduates and researchers in relativity, theoretical physics, astrophysics and mathematics. It can also be used as an introductory text on some mathematical aspects of general relativity.

3,340 citations

01 Jan 2007

3,304 citations

##### Authors

Showing all 18187 results

Name | H-index | Papers | Citations |
---|---|---|---|

Mika Kivimäki | 166 | 1515 | 141468 |

Stephen T. Holgate | 142 | 870 | 82345 |

Roger Jones | 138 | 998 | 114061 |

Wilmar B. Schaufeli | 137 | 513 | 95718 |

Neville Owen | 127 | 700 | 74166 |

Tao Zhang | 123 | 2772 | 83866 |

David M. Richardson | 119 | 575 | 59759 |

Franco Nori | 114 | 1117 | 63808 |

Paul Turner | 114 | 1099 | 61390 |

David I. Stuart | 113 | 594 | 49733 |

David J. Williams | 107 | 2060 | 62440 |

Peter Davies | 107 | 722 | 56141 |

Jun Yang | 107 | 2090 | 55257 |

Andrew M. Jones | 103 | 764 | 37253 |

John C. Marshall | 103 | 471 | 83314 |