Coordinates

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  A Century of Modern Crystallography

  E. Estevez-Rams, A. Pentón-Madrigal

  3-4

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Original Articles

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  Einstein and the Hypothesis of Single Photon Energy Interaction

  L. Martí-López, J. G. Darias-González, J. A. Ramos de Campos, Evelio E. Ramírez-Miquet

  5-9

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  Influence of the Sintering Conditions on the Microstructural, Dielectric and Piezoelectric Properties of La Doped KNNTa Ceramics

  J. Portelles, J. Fuentes, O. Raymond, J. Heiras, M. Cruz, C. Ostos, G. G. C. Arizaga, J. M. Siqueiros

  10-14

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  On the Photosynthetic Potential in the Open Oceans

  L. Rodríguez, R. Cárdenas, D. Ávila-Alonso

  15-17

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  Digital System Invariant to Position and Rotation to objects Recognition in Images by Intensity Profiles

  S. Solorza, J. Álvarez-Borrego

  18-19

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  Fluorescence in the Diagnosis of Dental Tissue

  E. Purón, R. Homs, R. M. Payá

  20-22

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  Implementation of a Lock In Amplifier for Optical Spectroscopy Measurements

  R. Homs, E. Purón

  23-25

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  Design and Construction of a Digital Dermoscopy

  E. Rojas, S. Stolik, J. de la Rosa, J. Espina, M. Pérez

  26-28

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Original Communications

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  White Luminescence in Porous Silicon Embedded with II-VI Semiconductors

  C. de Melo, G. Santana, J. Santoyo, O. de Melo

  29-31

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  Adsorption of Molecular Hydrogen on Nanostructured Surfaces

  A. Martínez-Mesa, G. Seifert

  32-34

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  Optical Model of the Unaccommodated Human Eye

  C. Muñoz-Villaescusa, O. Nuñez-Chongo, A. Batista-Leyva

  35-37

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  Preparation of CdS Nanowires Catalyzed by Au Nanoparticles

  P. G. Zayas-Bazán, K. Gutiérrez Z-B, G. Santana, O. Vázquez, J. Santoyo-Salazar, G. Contreras-Puente, J. C. González, O. de Melo

  38--40

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  Intramolecular Vibrational Energy Redistribution in the Relaxation Dynamics of Two CO on Cu(110)

  L. Uranga-Piña, J. C. Tremblay

  41-44

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For Physicists and Non-Physicists

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  The Most Powerful Particles in the Universe: A Cosmic Smash

  Wolfgang Bietenholz

  45-50

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  Our Physics in News

  51-54

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Comments

• Letter to the Editor: On a Non-Contradictory Beginning of the Universe

  F. L. Falcón

  55-56

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