The yield of neutrons produced by cosmic ray muons at a shallow depth of 32 meters of water equivalent has been measured. The Palo Verde neutrino detector, containing 11.3 tons of Gd loaded liquid scintillator and 3.5 tons of acrylic served as a target. The rate of one and two neutron captures was determined. Modeling the neutron capture efficiency allowed us to deduce the total yield of neutro...

1. We examined the relative importance of litter quality and stream characteristics in determining decomposition rate and the macroinvertebrate assemblage living on autumnshed leaves. 2. We compared the decomposition rates of five native riparian tree species (Populus fremontii, Alnus oblongifolia, Platanus wrightii, Fraxinus velutina and Quercus gambelii) across three south-western streams in ...

Background: The Cape Verde archipelago consists of 10 volcanic islands in the eastern Atlantic Ocean located 570 km off the coast of Western Africa. While the shallow benthic communities have been studied in some detail no seagrasses have been previously reported for the Republic of Cape Verde. Results: The seagrass Halodule wrightii Ascherson was found and described at one location at Praia, S...

1. Wetlands as Grazing Grounds 1.1. Wetlands and Traditional Seasonal Grazing: La Puna, Argentina–Bolivia–Chile– Peru 2. Grazing in Wetlands: Should this Threat be Prohibited? 2.1. Maintaining Biodiversity through Semi-Extensive Grazing: Palo Verde National Park, Costa Rica 3. Integrated Grazing Management in Wetlands: New Approaches 3.1. Combining Biodiversity Conservation with Livestock Reari...

This an electronic supplement of the paper ”Tracers of uplift and subsidence in the Cape Verde Archipelago”. The objective of this supplement is to provide more detailed information on the volcanostratigraphy of some of the Cape Verde islands mentioned in the main text, and a detailed description of key palaeo-markers of relative sea-level height used to track the history of vertical movements ...

The Pycnogonida from Uruguayan waters are scarcely known, and their reports are markedly discontinuous. In this paper, several individuals of two previously unrecorded pycnogonids at the shallow rocky subtidal and lower intertidal fringes of Cerro Verde (Rocha, Uruguay) are reported. The specimens were assigned to Pycnogonum pamphorum Marcus, 1940 and Anoplodactylus petiolatus (Kroyer, 1844). T...

A model for the transmission of dengue disease is presented. It consists of eight mutually-exclusive compartments representing the human and vector dynamics. It also includes a control parameter (insecticide) in order to fight the mosquitoes. The main goal of this work is to investigate the best way to apply the control in order to effectively reduce the number of infected humans and mosquitoes...

The research reported in this chapter takes part of the results of the project Cultura, Matemática e Cognição — Pensar a Aprendizagem em Portugal e Cabo Verde, especially in what concerns understanding the idea of “learning as an integral part of generative social practice in the lived-in world” (Lave & Wenger, 1991, p.35) together with the perspective that addresses “learning as increasing par...

a Graduate Program in Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil b Department of Pathology, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil c Department of Pathology, School of Dentistry, Universidade Estadual da Paraíba (UEPB), Araruna, PB, Brazil d Department of Ortodontics, Universidade Federal dos Vales do Jequitinh...