1. Preface: Octavio Obregón at 60

   • Claus Lämmerzahl
   • Alfredo Macias

   Preface 11 July 2007 Pages: 1073 - 1074

2. Canonical formulation of pp-waves

   • Herbert Balasin
   • Peter C. Aichelburg

   Research Article 11 July 2007 Pages: 1075 - 1085

3. Quantum collapse of dust shells in 2 + 1 gravity

   • L. Ortíz
   • M. P. Ryan Jr

   Research Article 11 July 2007 Pages: 1087 - 1107

4. Towards an Ashtekar formalism in 12 dimensions

   • J. A. Nieto

   Research Article 11 July 2007 Pages: 1109 - 1119

5. Differential calculus and gauge transformations on a deformed space

   • Julius Wess

   Research Article 11 July 2007 Pages: 1121 - 1134

6. Yang–Mills theory à la string

   • Riccardo Capovilla
   • Jemal Guven

   Research Article 11 July 2007 Pages: 1135 - 1141

7. Fundamental decoherence from quantum gravity: a pedagogical review

   • Rodolfo Gambini
   • Rafael A. Porto
   • Jorge Pullin

   Research Article 11 July 2007 Pages: 1143 - 1156

8. Phenomenological description of quantum gravity inspired modified classical electrodynamics

   • R. Montemayor
   • Luis F. Urrutia

   Research Article 11 July 2007 Pages: 1157 - 1174

9. Thermodynamics of a photon gas and deformed dispersion relations

   • Abel Camacho
   • Alfredo Macías

   Research Article 21 March 2007 Pages: 1175 - 1183

10. Low-energy effects in brane worlds: Liennard–Wiechert potentials and Hydrogen Lamb shift

    • Hugo A. Morales-Técotl
    • Omar Pedraza
    • Luis O. Pimentel

    Research Article 11 July 2007 Pages: 1185 - 1202

11. Wilson line inflation

    • A. Avgoustidis
    • D. Cremades
    • F. Quevedo

    Research Article 11 July 2007 Pages: 1203 - 1234

12. Observable effects of scalar fields and varying constants

    • John D. Barrow
    • Douglas J. Shaw

    Research Article 11 July 2007 Pages: 1235 - 1257

13. Higgs scalar–tensor theory for gravity and the flat rotation curves of spiral galaxies

    • Nils M. Bezares-Roder
    • Heinz Dehnen

    Research Article 11 July 2007 Pages: 1259 - 1277

14. Flat rotation curves in scalar field galaxy halos

    • Tonatiuh Matos
    • L. Arturo Ureña–López

    Research Article 11 July 2007 Pages: 1279 - 1286

15. Hyperbolic heat equation in Kaluza’s magnetohydrodynamics

    • A. Sandoval-Villalbazo
    • A. L. García-Perciante
    • L. S. García-Colín

    Research Article 11 July 2007 Pages: 1287 - 1296

16. Entropy and anisotropy

    • Francisco J. Hernández
    • Hernando Quevedo

    Research Article 11 July 2007 Pages: 1297 - 1309