A set of time integrated cosmogenic 3He production rates in olivines for the last 1.35 Ma are presented. We investigated three basaltic lava flow tops from Lanzarote, Canary Islands, Spain. The 40Ar/39Ar ages determined for those basalt flows by incremental laser heating of leached groundmass samples are 152 þ 26 ka, 281 þ 19 ka and 1.35 þ 0.01 Ma ( þ 2c). Three or four different olivine phenoc...

G21 Z̃22 Z̃23 Z̃24 W̃21 G31 Z̃32 Z̃33 Z̃34 W̃31 G41 G42 Z̃43 Z̃44 W̃41 G51 G52 Z̃53 Z̃54 W̃51 Z11 Z12 Z13 Z14 W11 G21 Z̃22 Z̃23 Z̃24 W̃21 G31 Z̃32 Z̃33 Z̃34 W̃31 G41 G42 Z̃43 Z̃44 W̃41 G51 G52 Z̃53 Z̃54 W̃51 Two-Stage Least Squares algorithms with QR decomposition for Simultaneous Equations Models on heterogeneous multicore and multi-GPU systems Carla Ramiroa, José J. López-Espínb, Domingo Giménezc and Antonio M. Vidala

The G31.41+0.31 (G31) hot molecular core (HMC) is a high-mass protocluster showing accelerated infall and rotational spin-up that well studied at high-angular resolution. To complement the accurate view of small scale in G31, we have traced kinematics large-scale material by carrying out N$_2$H$^+$\,(1--0) observations with IRAM 30m telescope an area $\sim$6$\times6$\,arcmin$^2$ around HMC. N$_...

Article history: Received 6 February 2008 Accepted 14 May 2008 Available online 20 May 2008 JEL classification: C63 G11 G31 G39

Abstract Background Domestication usually has negative effects on insect performance, especially when they are reared continuously for many generations. Rejuvenation can reduce the of domestication in parasitoid, Trichogramma brassicae Bezdenko (Hymenoptera: Trichogrammatidae) 30 generations (G) Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae). Life table and parasitism parameters prim...

La ‘pudrición escamosa’ es una de las enfermedades mayor importancia en el nopal, por tal motivo objetivo del presente trabajo fue aislar e identificar hongos asociados a la y evaluar capacidad bacterias género Bacillus sp. aisladas para evitar enfermedad nopal (Opuntia ficus-indica (L) Mill.). Diez fueron analizadas pruebas in vitro antagonismo frente al patógeno Neoscytalidium hyalinum que se...

A dynamic light scattering (DLS) method was adopted for measuring the corrosion of iron nanoparticles. The average diameter of the nanoparticles in a sodium chloride suspension increased linearly with time as iron oxide layers formed around the nanoparticles. The nanoparticle corrosion rate determined by DLS was found to be almost identical to the value obtained by conventional immersion tests ...