But, in the specific case of liquid residues from the cassava industrialization, the experiences are reduced. The objective of this study was evaluating the efficiency in the reduction of the pollutant load of lagoons of treatment of liquid residues of cassava industry. Thus samples were collected in the entrance of the system and in each of the seven lagoons of the Fecularia Solteros de atlantic beach nc weather in november, in Marechal Cândido Rondon - PR, Brazil, from May to September of The following parameters were appraised: The system promoted reduction of The Lagoa Real uranium province, Bahia state, Brazil: The Lagoa Real Uranium Province in the central-southern Bahia State, consisting of six deposits and several prospects, has a reserve of near one hundred tons of U 3 O 8.
The main lithological unit in the area is the Lagoa Real Complex which is formed by granites and gneisses derived from them. The unit overthrusts the Espinhaco metasediments the west. The Complex is the host of albities which may contain uraninite. The mineralization is manly associated with pyroxene and garnet. Petrographic and field relations indicate the overthrusting as the latest event, having left implants in the orebodies and their hosts.
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Fluid inclusion studies indicated fluids of different characteristics in the Espinhaco and the Lagoa Real Complex although they were similar in composition carbonic and aqueous. The types inclusions detected are in agreement with the geologic processes suggested for the area: The study is an example of fluid inclusion behaviour in a metamorphic process with very limited amount of fluids. Preliminary studies of the lithogeochemistry, carried out on various deposits from the Uranium Province of Lagoa Real, show that in relation to the complex and multiphased processes of metasomatism, the sodic metasomatites are younger and were superposed on the potassic metasomatites.
Such metasomatites developed in zones of extended and rejuvenated faults, after the transformation of the gnaisses, granitic rocks, amphibolites and ferruginous quartzites into various tectonites mylonites, blastomylonites and protomylonites. The calcic metasomatism, subsequent to those phases, took place during the course of tectonothermal reactivations marking the termination of the solteros de atlantic beach nc weather in november metasomatic processes which aftected the rocks of Lagoa Real.
The uranium deposit 'Jazida Laranjeiras', centrally situated in the Uranium Province of Lagoa Real is the only deposit in which the uranium mineralization is not intimately associated with the calcic metasomatism.
The authors suggest calcic zoning in the post-albitite phase along the sigmoidal structure which localizes the uranium deposits, with an increase of the CaO content in the extreme parts of the structure - deposit 'Jazida Cachoeira' in the north and anomaly No. Also suggested is the vertical zoning of calcium, whereby the intensity of the metasomatic phenomenon is increased towards the hanging wall side of the mieral parcel.
Increases and decreases of waterfowl population have. A Study of Three University Programs.
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Full Text Available Se presenta un estudio de experiencias curriculares de tres programas académicos de la Universidad de Antioquia, Colombia, en las que se buscan elementos para analizar e interpretar los desarrollos sobre pertinencia curricular. Los programas académicos seleccionados para el referente empírico son: The article describes a study of the curricular experiences of three academic programs at the Universidad de Antioquia in Colombia. Elements of these programs are singled out to analyze and interpret the development of curricular relevance.
The academic programs selected for the empirical reference are: The crux of this study centers on aspects related to building a concept of relevance, and the objective is to identify and characterize the dynamics of relevance related to the programs in question. Full Text Available Objetivos: Estudio observacional descriptivo mediante aplicación de una encuesta aplicada en 1. Los tres muros de Paimio. Así, el sanatorio de Paimio ha pasado a la historia de la arquitectura como la consolidación del Proyecto Moderno en Finlandia, protagonizando, aparentemente, su momento de mayor ortodoxia.
Aalto se sintió atraído, desde sus comienzos, por la posibilidad de generar un discurso proyectual propio. La singular presencia de elementos opuestos dialogando define la tarea rectora de una manera de hacer en arquitectura. Todo ello se revela en innumerables episodios, pero es especialmente visible en la singular composición de los tres muros de las habitaciones.
El muro pesado, definido a través de sus cualidades materiales, vinculado a la tradición decimonónica. Y finalmente el muro inmaterial, dotado de atributos próximos a la invisibilidad, de profundas referencias orientales. Tres Danzas Sencillas, Solteros de atlantic beach nc weather in november 1. Le envío anuncios y programas que dan constancia del estreno de su obra.
Full Text Available This paper presents the composition and functional groups of the phytoplankton from Comprida lagoon, a tropical humic coastal Lagoon located in Southeast Brazil. A total of 28 taxa was found, distributed in eight taxonomic divisions as follows: Twenty-three taxa were identified at the specific and infraspecific levels, from which four are new records for Brazil and two for Rio de Janeiro State. Phytoplankton of the Comprida lagoon was comprised of several flagellates, but also eukaryote and prokaryote picoplankton, filamentous cyanobacteria and several diatoms.
The biomass was lower than that found in other lacustrine systems, and showed remarkable temporal variability. According to the functional-group approach, the populations formed eight groups: Characterization of fluids associated to mineral paragenesis of uraniferous albitites and their gnessic embedding rocks from Lagoa da Rabicha Uranium Deposit, Lagoa Real, BA, Brazil. Brazil has now the seventh largest uranium reserve in the world.
Along a helical structure, north-south oriented, with approximately 33 km long, there are 34 known uranium mineralized areas.
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Nowadays it is observed a growth in energy demand in Brazil and also worldwide and studies and research applied to the petrogenetic uranium deposits are relevant both to be able to increase their potential for exploration and to assist in the possible future occurrences discovery. In recent years, fluid inclusions analysis FI have been widely solteros de atlantic beach nc weather in november to study the genesis of uranium deposits in PULR and even thought there are still doubts about the uranium mineralization metallogenesis at Lagoa Real.
Therefore, this work aimed to study the minerals and fluids associated with Lagoa da Rabicha albitites uraniferous and gneissic host rocks. In this way it was prepared an overview of the fluids found in this sector, establishing a comparison with several authors' studies in this and others Lagoa Real anomalies, trying to show the solutions evolution, at the same time that happened the uraninite precipitation. The fluids inclusions assemblages present in pyroxene, garnet and plagioclase, the main mineralogical constituents, were studied. Stromatolite laminae Lagoa Vermelha, Brasil as archives for reservoir age changes.
As laminated biogenic or abiogenic sedimentary structures [1], stromatolites record environmental changes along growth profiles, revealing possible changes in reservoir ages due to input of older carbon. Shells collected in were analysed for estimation solteros de atlantic beach nc weather in november the present-day reservoir age. Small-scale changes in the composition of laminae report environmental changes, e.
The well-laminated middle part laminated boundstone; ca. To detect possible changes of marine 14C, calendar years assuming a stable modern reservoir age were used to simulate atmospheric 14C ages with the southern hemisphere IntCal13 atmospheric calibration curve [3]. The offset between the measured and simulated 14C ages indicates a variability solteros de atlantic beach nc weather in november the reservoir age between and 14C y with highest reservoir correction found for the layers with indication of environmental changes e.
Thus, this simulation confirms the occurrence of older carbon and points out the sensitivity of stromatolites for changing reservoir ages.
Stromatolite morphogenesis - progress and problems. Canadian Journal of Earth Sciences, Hormigas como plagas potenciales en tres criaderos de mariposas del suroccidente de Colombia. Full Text Available La fauna de hormigas asociada con la zoocría de mariposas en los departamentos de Valle del Cauca y Quindío Colombia, se colectó por captura manual en tres ambientes mariposario, vivero y laboratorio.
De muestras se extrajeron hormigas, pertenecientes a cinco subfamilias, 18 géneros y 24 especies. Algunas de estas hormigas son reconocidas como vagabundas y plagas urbanas, lo que podría considerarse como un riesgo potencial para las actividades de zoocría de mariposas. En el presente estudio se propuso conocer las especies de hormigas que se asocian con tres criaderos de mariposas localizados en el suroccidente colombiano. Mortality of Kalliapseudes schubartii in unvegetated soft bottoms of the estuarine region of the Lagoa dos Patos.
Full Text Available Studies were carried iut on seasonal mortality by taking samples of Kalliapseudes schubartii Crustacea: Tanaidacea for a year in the estuarine region of the Lagoa dos Patos southern Brazil.
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Results demonstrated no significant difference in seasonal mortality rates, which suggest that populations of K. Aislamiento de tres cepas de leishmania. Este es un estudio de aislamiento de tres cepas de Leishmania obtenidas de tres enfermos de distintas regiones del país, Investigadores colombianos que se han ocupado con anterioridad de este problema, obtuvieron solteros de atlantic beach nc weather in november resultados negativos. Environmental control and radioprotection in Itataia and Lagoa Real uranium mines.
Monitoring Programs in Itataia and Lagoa Real uranium mines were initiated in In the actual pre-operational phase of this Programs, are being collected samples of air, surface and underground waters, stream solteros de atlantic beach nc weather in november, soil, field products, and milk. Environmental contamination of air is controlled by thermoluminescent dosimeters, distributed around the mines. Instantaneous radiation measures in this stations are made with scintillometer calibrated in Radioprotection Laboratory Department-CDTN. Photographic dosimeters are used for monitoring external radiation exposures in workers.
Radiation levels evaluation, air and surface contamination measures, were effectuated in installations, trenches, and research galleries. Another factors which are now being studied: Preliminary studies on fluid inclusions in metasomatic albite grains from Lagoa Real, Caetite, Ba, Brazil. Microthermometry and crushing tests indicated elevated pressures and the presence of hidrocarbons in larger amount than CO 2. Full Text Available Myxobolus platanus n. The spores were round in frontal view and oval in lateral view, The polar capsules, equal in size, were prominent, surpassing the mid-length of the spore, and were oval with the posterior extremity rounded, and converging with their anteriorly tapered ends.
A small intercapsular appendix was present. The polar filament formed five to six coils obliquely placed to the axis of the polar capsule.
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No mucous envelope or distinct iodinophilous vacuole were found. Descreve-se Myxobolus platanus n. Um pequeno apêndice intercapsular estava presente.
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Nutrient budgets and trophic state in a hypersaline coastal lagoon: Lagoa de Araruama in the state of Rio solteros de atlantic beach nc weather in november Janeiro, Brazil, is a hypersaline lagoon with salinity varying spatially from 45 to We collected water samples during monthly cruises throughout the lagoon, and along the streams feeding the system, from April to March Nutrients and other water quality parameters exhibited great spatial and temporal variations.
Mass balance calculations indicate large amounts of anthropogenic nutrient inputs. The data indicate that the lagoon currently is oligotrophic but is in a state of transition to become a mesotrophic system. Molar dissolved inorganic nitrogen: The major loss of DIP is apparently driven by biological assimilation and diagenic reactions in the sediments. This suggests that the biomass of the primary producers is restricted by phosphorus availability.
Phosphorus retention in the sediment and the hypersaline state of the lagoon prevent changes in autotrophic communities and the formation of eutrophic conditions. Electron spin resonance dating of megafauna from Lagoa dos Porcos, Piauí, Brazil. Although anatomic and taxonomic aspects of extinct Quaternary mammals are relatively well known, chronologic information for deposits is rare.
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In this context, electron spin resonance ESR dating of megafauna samples provides important information for establishing a chronological background. These results place Lagoa dos Porcos fossil assemblage within the Late Pleistocene. These dates overlap with a period of abrupt increase in rainfall in northeast Brazil, and it is possible that this environmental change is related to the formation of this deposit.
In this context, electron spin resonance ESR dating of mega-fauna samples provides important information for establishing a chronological background. The Lagoa Real uranium province is situated in the central-south of Bahia state. Brazil and it is presently by far the most important and best known uranium occurrence in Brazil. Nowadays 34 anomalies are known in a 30 Km long and 5 km wide area. An open pit mine was open in Cachoeira Mine, in the north portion of the area, and it is the only uranium mine in operation in Brazil and even in South America as well.
Uraninite is the main uranium mineral, followed by pechblende, uranophane, torbernite and other uranyl minerals. Some secondary minerals such as, for instance, uranophane, torbernite and tyuyamunite are also found. The main albitites minerals from solteros de atlantic beach nc weather in november Cachoeira mine plagioclase, garnet, biotite, pyroxene, amphibole and titanite were studied by means of Infrared Spectroscopy Techniques.