Recent studies document the LH-releasing pathway of nerve growth factor (NGF) in male camelids and that the LH response to seminal NGF is associated with elevated plasma testosterone concentration. Results provide rationale for the hypothesis that NGF in semen is associated with male fertility. In Experiment 1, the association between the amount of NGF in the ejaculate and characteristics of the male reproductive system was examined in alpacas. The concentration of NGF was measured by radioimmunoassay in semen samples collected from male alpacas (n = 47) and correlated with sperm morphology and motility, and measurements of the male reproductive anatomy. Most ejaculates had NGF concentrations that, based on previous studies, triggered ovulation in female camelids, however, we only found a positive correlation between NGF concentration with sperm concentration, thread formation and to...

Communication between home and school is vital to maintain a good relation ship and technology has evolved so that you have provided various tools we can use to improve important aspects such as the one mentioned. Initially a short questionnaire was applied in order to identify the group as potentially able to implement the project as it was necessary to check if the group was family to evaluate the use of Facebook as a means of communication. Initially we applied the scale of parent-school diagnosis, the same scale was applied at the end of the time scheduled for the development of research, where it has been observed that the results between the two times differ significantly, whichwe can say that parent school communication is enhanced by the use of Facebook and this in turn leads to better diagnosis of the family-school relation ship.

Communication between home and school is vital to maintain a good relation ship and technology has evolved so that you have provided various tools we can use to improve important aspects such as the one mentioned. Initially a short questionnaire was applied in order to identify the group as potentially able to implement the project as it was necessary to check if the group was family to evaluate the use of Facebook as a means of communication. Initially we applied the scale of parent-school diagnosis, the same scale was applied at the end of the time scheduled for the development of research, where it has been observed that the results between the two times differ significantly, whichwe can say that parent school communication is enhanced by the use of Facebook and this in turn leads to better diagnosis of the family-school relation ship.

We thank several scientists from Instituto del Mar del Perú (IMARPE) for historical record information and Sonia Sánchez and Luis O. Duarte for discussions of an earlier version of this paper. Special thanks are extended to “Gordie” Swartzman (University of Washington) for his valuable comments and help in finishing this work during his visit to IMARPE. Monthly in situ SST data were contributed by the “Dirección de Hidrografia y Navegacion (DHN)” of the Peruvian Navy. Participation in the 3rd International Zooplankton Production Symposium, 20–23 May 2003, Gijón, Spain, was made possible with financial aid from Consejo Nacional de Ciencia y Tecnologı́a del Perú (CONCYTEC) and the Eastern Pacific Consortium for Research on Global Change in Coastal and Oceanic Systems (EPCOR). Finally, we recognize the very helpful comments of the two referees.

Support for the conference, the special issue and this paper came from the Institut de Recherche pour le Développement (IRD), the Instituto del Mar del Perú (IMARPE), the Food and Agriculture Organisation of the United Nations (FAO), the International Council for the Exploration of the Sea (ICES), the North Pacific Marine Science Organization (PICES), the Global Ocean Ecosystem Dynamics (GLOBEC) program, the Integrated Marine Biogeochemistry and Ecosystem Research (IMBER) program, the European network of excellence EUR-OCEAN, the Centre National d’Etudes Spatiales (CNES, France), the Peruvian Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC), the French Ministère des Affaires Étrangères (MAE), the French Embassy in Peru, and the Alliance Française of Lima, the National Aeronautics and Space Administration (NASA, USA), and the David and Lucile Packard ...

Objetivo: Determinar la frecuencia y distribución de las anomalías de forma y de número en dentición temporal.  Material y Métodos: Estudio retro-prolectivo, transversal y descriptivo. Muestreo probabilístico por conveniencia estratificado por género. Se revisaron 1568 expedientes de pacientes que acudieron a la Clínica de Estomatología Pediátrica de la FEBUAP, durante el periodo 2012 a 2014, se incluyeron 720 expedientes (321 niñas y 399 niños) de 1 a 10 años, que presentaron estudios radiográficos completos, nítidos, con presencia de anomalías de forma o número, el estudio fue dividido en pacientes activos e inactivos. Para los inactivos se tomaron fotografías de las radiografías con presencia de anomalías de forma y/o número. En el caso de los activos, se realizó una entrevista con alguno de los padres, se solicitó autorización bajo consentimiento informad...

Objetivo: Determinar la frecuencia y distribución de las anomalías de forma y de número en dentición temporal.  Material y Métodos: Estudio retro-prolectivo, transversal y descriptivo. Muestreo probabilístico por conveniencia estratificado por género. Se revisaron 1568 expedientes de pacientes que acudieron a la Clínica de Estomatología Pediátrica de la FEBUAP, durante el periodo 2012 a 2014, se incluyeron 720 expedientes (321 niñas y 399 niños) de 1 a 10 años, que presentaron estudios radiográficos completos, nítidos, con presencia de anomalías de forma o número, el estudio fue dividido en pacientes activos e inactivos. Para los inactivos se tomaron fotografías de las radiografías con presencia de anomalías de forma y/o número. En el caso de los activos, se realizó una entrevista con alguno de los padres, se solicitó autorización bajo consentimiento informad...