Chemical and Sr isotopic compositions of 3 step leachates and residues of bulk samples, zeolites, and smectites from Lower Miocene sediments at ODP Site 166-1007

Massive clinoptilolite authigenesis was observed at about 1105 meters below sea floor (mbsf) in lower Miocene wellcompacted carbonate periplatform sediments from the Great Bahama Bank [Ocean Drilling Program, ODP Leg 166, Site 1007]. The diagenetic assemblage comprises abundant zeolite crystallized within foraminifer tests and sedimentary matrix, as well as Mg smectites. In carbonate-rich deposits, the formation of the zeolite requires a supply of silica. Thus, the objective of the study is to determine the origin of the silica supply, its diagenetic evolution, and consequently the related implications on interpretation of the sedimentary record, in terms of local or global paleoceanographic change. For lack of evidence for any volcaniclastic input or traces of Si-enriched deep fluids circulation, an in situ biogenic source of silica is validated by isotopic data and chemical modeling for the formation of such secondary minerals in shallow-water carbonate sequences. Geochemical and strontium isotopic data clearly establish the marine signature of the diagenetic zeolite, as well as its contemporaneous formation with the carbonate deposition (Sr model ages of 19.6-23.2 Ma). The test of saturation for the pore fluids specifies the equilibrium state of the present mineralogical assemblage. Seawater-rock modeling specifies that clinoptilolite precipitates from the dissolution of biogenic silica, which reacts with clay minerals. The amount of silica (opal-A) involved in the reaction has to be significant enough, at least 10 wt.%, to account for the observed content of clinoptilolite occurring at the most zeolite-rich level. Modeling also shows that the observed amount of clinoptilolite (~19%) reflects an in situ and short-term reaction due to the high reactivity of primary biogenic silica (opal-A) until its complete depletion. The episodic occurrence of these well-lithified zeolite-rich levels is consistent with the occurrence of seismic reflectors, particularly the P2 seismic sequence boundary located at 1115 mbsf depth and dated as 23.2 Ma. The age range of most zeolitic sedimentary levels (biostratigraphic ages of 21.5-22 Ma) correlates well with that of the early Miocene glaciation Mi-1 and Mi-1a global events. Thus, the clinoptilolite occurrence in the shallow carbonate platform environment far from volcanogenic supply, or in other sensitive marine areas, is potentially a significant new proxy for paleoproductivity and oceanic global events, such as the Miocene events, which are usually recognized in deep-sea pelagic sediments and high latitude deposits.

Chemical composition of bottom sediments and rocks from DSDP Holes 3-14 through 64-477

Data on analyses of chemical composition of DSDP samples of bottom sediments and rocks carried out in P.P. Shirshov Institute of Oceanology are reported. Basal sediments and sedimentary rocks prevail in the sample set.

REE, Ba, and Sr abundances and Sr, Nd, and Ce isotope ratos of ODP Hole 110-504B basalts

Abundances of rare earth elements (REE), Ba, and Sr and isotopic ratios of Sr, Nd, and Ce were determined for six samples of basalts drilled at Hole 504B on Leg 111 of the Ocean Drilling Program. Analyses found that these basalts are the most depleted in Sr, Ba, and light REE among mid-ocean ridge basalts (MORB); Ba depletion is especially notable. On the other hand, Sr, Nd, and Ce isotopic ratios for basalts from Hole 504B are within the range of typical MORB values.

Chemical composition of sediment core GeoB12309-5 from the northern Arabian Sea, its pore water profile and age depth relationship as well as CTD data obtained during cruise M74/3

The Arabian Sea off the Pakistan continental margin is characterized by one of the world's largest oxygen minimum zones (OMZ). The lithology and geochemistry of a 5.3 m long gravity core retrieved from the lower boundary of the modern OMZ (956 m water depth) were used to identify late Holocene changes in oceanographic conditions and the vertical extent of the OMZ. While the lower part of the core (535 - 465 cm, 5.04 - 4.45 cal kyr BP, Unit 3) is strongly bioturbated indicating oxic bottom water conditions, the upper part of the core (284 - 0 cm, 2.87 cal kyr BP to present, Unit 1) shows distinct and well-preserved lamination, suggesting anoxic bottom waters. The transitional interval from 465 to 284 cm (4.45 - 2.87 cal kyr BP, Unit 2) contains relicts of lamination which are in part intensely bioturbated. These fluctuations in bioturbation intensity suggest repetitive changes between anoxic and oxic/suboxic bottom-water conditions between 4.45 - 2.87 cal kyr BP. Barium excess (Baex) and total organic carbon (TOC) contents do not explain whether the increased TOC contents found in Unit 1 are the result of better preservation due to low BWO concentrations or if the decreased BWO concentration is a result of increased productivity. Changes in salinity and temperature of the outflowing water from the Red Sea during the Holocene influenced the water column stratification and probably affected the depth of the lower boundary of the OMZ in the northern Arabian Sea. Even if we cannot prove certain scenarios, we propose that the observed downward shift of the lower boundary of the OMZ was also impacted by a weakened Somali Current and a reduced transport of oxygen-rich Indian Central Water into the Arabian Sea, both as a response to decreased summer insolation and the continuous southward shift of the Intertropical Convergence Zone during the late Holocene.

Evaluation of a PET Prototype Using LYSO:Ce Monolithic Detector Block

We have analyzed the performance of a PET demonstrator formed by two sectors of four monolithic detector blocks placed face-to-face. Both front-end and read-out electronics have been evaluated by means of coincidence measurements using a rotating 22Na source placed at the center of the sectors in order to emulate the behavior of a complete full ring. A continuous training method based on neural network (NN) algorithms has been carried out to determine the entrance points over the surface of the detectors. Reconstructed images from 1 MBq 22Na point source and 22Na Derenzo phantom have been obtained using both filtered back projection (FBP) analytic methods and the OSEM 3D iterative algorithm available in the STIR software package [1]. Preliminary data on image reconstruction from a 22Na point source with �� = 0.25 mm show spatial resolutions from 1.7 to 2.1 mm FWHM in the transverse plane. The results confirm the viability of this design for the development of a full-ring brain PET scanner compatible with magnetic resonance imaging for human studies.

Tabule ad diuersas huius operis magistri Guilhelmi de ockam sup[er] quattuor libros s[e]n[tent]iaru[m] a[n]notat[i]o[n]es et ad ce[n]tilogij theologici eiusdem co[n]clusiones facile reperiendas apprime conducibiles.

Pie de imp. tomado del colof��n en X10r

Quae hoc libro continentur, Sedulii mirabilium diuinoru[m] libri quatuor carmine heroico ; Eiusdem Elegia, in qua finis pentametri est similis principio hexametri ; Eiusde[m] hymnus de Christo ab incarnatione, vsq[ue] ad asce[n]sione[m]. Iuuenci de Euangelica historia libri quatuor. Aratoris Cardinalis Historiae Apostolicae libri duo. Probae Falconiae ce[n]to ex Vergilio de nouo & veteri testame[n]to. Homerocentra, hoc est centones ex Homero graece cum interpretatione latina. Opusculum ad Annu[n]tiationem beatiss. Virginis graece cum latino in medio quaternionum omnium. Lactantii Firmiani de Resurrectione Elegia... Cyprianus De ligno crucis versu heroico. Tipherni deprecatoria ad Virginem elegia ... Sancti Damasi De laudibus Pauli apostoli versus hexametri ... Vita S. Martini episcopi a Seuero Sulpitio prosa oratione ...Vita S. Nicolai e graeco in latinum a Leonardo Iustiniano patritio Veneto

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Nouueau liure des cinq ordres d'architecture / par Jacques Barrozio Vignole ; enrichi de differents morceaux de menuiserie, d'ornements et de tout ce qui est necessaire a tous ceux qui veulent ��tudier cet art ... .

En p. 1 grab. aleg��rico "Les cinq ordres d'architecture de Vignole"

Trait�� d'architecture, auec des remarques et des obseruations tres-utiles pour les ieunes gens, qui veulent s'appliquer �� ce bel art / par Seb. Le Clerc ...

Capitulares grab. xil.

Realizaci��n de Mapa Estrat��gico de Ruido de las Carreteras de la Red del Estado (A-3 - zona Campus Sur de la U.P.M.)

En cumplimiento de la Directiva 2002/49/CE en lo referente a carreteras, se han llevado a cabo en Espa��a, en el a��o 2007, los mapas estrat��gicos de ruido (MER) de los grandes ejes viarios de m��s de 6 millones de veh��culos / a��o (datos 2006). En esta categor��a se encuentra la carretera A-3 a su paso por el Campus Sur de la U.P.M. De acuerdo con el pliego de prescripciones t��cnicas, estos MER se dividen en fase A o de estudio b��sico y fase B o de estudio de detalle. En el proyecto denominado ���Realizaci��n de Mapa Estrat��gico de Ruido de las carreteras de la Red del Estado (A-3 - Zona Campus sur de la U.P.M.)��� se muestran los resultados de informaci��n p��blica de fase A del Mapa Estrat��gico de Ruido (MER) para la carretera A-3 en la Comunidad de Madrid. Teniendo en cuenta dichos resultados y la no elecci��n del Campus Sur en la fase B (detalle) de dicho MER; en el presente proyecto se realiza el Mapa Estrat��gico de fase B del Campus Sur de la U.P.M. para el gran ejes viarios (A-3), de cumplimiento de la Directiva 2002/49/CE y siguiendo las indicaciones del pliego de prescripciones t��cnicas para esta primera fase de entregas de 2007 y utilizando para ello Sistemas de Informaci��n Geogr��fica (SIG). Se justifica, seg��n los resultados obtenidos, si hubiera sido necesaria su inclusi��n en esta fase de estudio. Una vez establecidas las diferencias entre Mapa Estrat��gico de Ruido (MER) y Mapa de Ruido (MR), se analizan los diversos criterios t��cnicos que debe tomar un consultor ac��stico durante la realizaci��n de un MER y c��mo estos pueden afectar al resultado final siendo todos ellos v��lidos pero creando una falta de homogeneidad entre los diferentes MER seg��n el autor del estudio. Se describen las diferentes acciones que se est��n tomando tras la entrega de 2007 para intentar solucionar este problema de cara a las nuevas entregas. ABSTRACT: The environmental Noise Directive 2002/49/EC has clear requirements to Member States in terms of Strategic Noise Maps according to roads. So, have been carried out in Spain, in 2007, Strategic Noise Maps of the major roads which have more than six million vehicle passages a year (2006 data) where the A-3 road near ���Campus Sur U.P.M.��� is included. In accord with the statement of technical requirements, these Strategic Noise Maps are divided into A phase (Basic study) and B phase (detailed study). The present project by the name of "Implementation of Strategic Noise Map of Spanish Roads (A-3 ��� Campus Sur U.P.M. area)" shows the results of Strategic Noise Map for the A-3 in the Community of Madrid (A phase, public information ��� EGRA project Spanish Ministry of Transport). According to de study results and the not election of ���Campus Sur��� to B phase (detail), in this project has been made the B phase of Strategic Map in compliance with Directive 2002/49/EC, following the technical requirements specifications for the first phase of deliveries (2007) and using Geographic Information Systems (GIS) to carry on them. Is justified, in accordance with the results, if it was necessary to include ���Campus Sur��� in this B phase of study. Once established the differences between Strategic Noise Map and Noise Map, the present project examines the technical criteria that must take an acoustic consultant for the realization of a Strategic Map and how these criteria could affect the quality of the final results being all of them valid but it generate a lack of homogeneity between the different Strategic Noise Map by the author of the study. There wasn���t so much experience in Spain in the methodology proposed by the European Noise Directive. The actions that are being taken after delivery of 2007 to try to solve this problem and get harmonized the results among the whole network for the new deliveries each five years are shown at the present project.

Modelos de transposici��n de las Directivas 2002/91/CE y 2010/31/UE ���Energy Performance Building Directive��� en los Estados miembros de la UE. Consecuencias e implicaciones

Energy performance building directive? en los estados miembros de la UE. Consecuencias e implicaciones?