Dermatitis herpetiforme is an autoimmune disease characterized by the presence of vesicular lesions and itching on the extensor surface of the limbs, buttocks, and lower back. The clinical case of a 21-year-old woman, a native of and from Iquitos, is presented. She presented multiple painful, itchy vesicles with an erythematous and purulent base on both elbows for a month. Subsequently, these lesions spread to both knees, and intense itching was added. The patient experienced alternating periods of remission and exacerbation. The correlation of the clinical picture, serological and biopsy results, along with the therapeutic response to dapsona, confirmed the diagnosis of dermatitis herpetiforme, with a favorable evolution and remission of the disease.

Equatorial electric field measurements were recently reviewed by B. Balsley on occasion of the last equatorial symposium. We present in this review new measurements reported in the literature since the last symposium and include a large amount of new unpublished measure­ments of the vertical and East-West electric fields performed at Jicamarca using the incoherent scatter technique. The data base at Jicamarca comprises now almost a full solar cycle. The effects of low solar activity are discussed. The main effects being: (1) A reduction in the night-time maximum amplitude of the E-W drift; (2) an increase in the frequency of occurrence of afternoon reversals of the vertical drift (E-W electric field); (3) a reduction in the amplitude and fre­quency of occurrence in the prereversal (post-sunset) vertical drift enhancement.

The development of the LPDS methodology component was funded by the Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica del Perú (CONCYTEC from its acronym in Spanish), according to the Convenio de Gestión N° 232-2015-FONDECYT. The support to the first two authors is greatly appreciated. The team would like to thank Dr. S. Gibson (University of the Holy Land), the head archaeologist working at the SJH for inviting the third and fourth author to work in this project. The third and fourth author would like to thank the Armenian Patriarchate and Father Asbed at the Church of the Nativity convent for the access to the site. Engineer Issa Juha, graduate students Peter Hubbard and Mauricio Gonzales, and Dr. Steve Patterson provided support to the team during the experimental campaign. The opinions presented herein do not necessarily reflect the opinions of CONCYTEC, or of th...