We are pleased to bring you the latest Impact Factors from Elsevier's Nonlinear, Statistical and Applied Physics journals. Highlights include...

2007 Impact Factor 2008 Impact Factor |

2007 Impact Factor 2008 Impact Factor |

2007 Impact Factor 2008 Impact Factor |

2007 Impact Factor 2008 Impact Factor |

Journal Title | 2007 Impact Factor WAS | 2008 Impact Factor NOW |
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Ultrasonics Sonochemistry | 2.434 | 2.796 |

Physics Of Life Reviews | 3.375 | 2.545 |

Journal Of Computational Physics | 2.372 | 2.279 |

Physica A-Statistical Mechanics And Its Applications | 1.430 | 1.441 |

Wave Motion | 0.869 | 1.391 |

International Journal Of Non-Linear Mechanics | 1.249 | 1.296 |

Ultrasonics | 0.559 | 1.084 |

Reports On Mathematical Physics | 0.624 | 0.576 |

**WHAT IS AN IMPACT FACTOR?**

The journal impact factor is a measure of the frequency with which the average article in a journal has been cited in a particular year. The impact factor helps you evaluate a journal's relative importance, especially when you compare it to others in the same field. The impact factor is calculated by dividing the number of citations in the current year to articles published in the two previous years by the total number of articles published in the two previous years.

Cites in 2007 to articles published in: | 2006 2005 Sum | = 1266 = 1643 = 2909 |

Number of articles published in: | 2006 2005 Sum | = 352 = 364 = 716 |

Calculation: | Total cites to articles published in 2005 and 2006 | 2909 | = 4.063 |

Number of articles published in 2005 and 2006 | 716 |

**The 2007 Impact Factor for Journal X is 4.063**