EDF Energies Nouvelles. Consolidated financial statements at 30 June 2009

International Nuclear Information System (INIS)

2010-01-01

EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2009. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's consolidated financial statements at 31 December 2008

Sulphate removal from uraniferous liquors

International Nuclear Information System (INIS)

Berger, B.

1983-01-01

A process for the recovery of uranium from liquor resulting from the attack of sulphur containing uraniferous ores by an alkaline solution of sodium carbonate and/or sodium bicarbonate is claimed. An ion exchange resin is used to separate the uranium from the solution of sodium carbonate and/or bicarbonate and sodium sulphate. The ion exchange resin is then eluted with a solution of ammonium carbonate and/or bicarbonate to provide an eluate containing ammonium uranyl tricarbonate, ammonium carbonate and/or bicarbonate and ammonium sulphate. The eluate is heated to boiling to convert the ammonium uranyl tricarbonate to ammonium uranate and/or diuranate. Ammonia, carbon dioxide and water vapor are released. The precipitated ammonium uranate and/or diuranate is separated from the remaining liquor and calcined to give uranium trioxide

Geological-uraniferous favourability of South America

International Nuclear Information System (INIS)

Stipanicic, P.N.

1984-01-01

The South American continent includes several metallogenic provinces some of which have excellent uranium possibilities. Basically, two types of lithological complex have contributed to this favourability: the large Precambrian shields covering about 5,500,000 km 2 and the crystalline Hercynian nesocratons with about 300,000 km 2 as source rocks. Only in Argentina and Brazil has continuous uranium exploration in South America been carried out, with moderate budgets, during the last twenty-five years. In the rest of South America the search for uranium has been performed intermittently and with limited resources. However, during recent years interest has increased and more continuous operation has been recorded in some countries (Bolivia, Colombia, Chile, Peru). It can be estimated that only 20% of the favourable areas have been explored fairly intensively in Argentina and Brazil, the two most advanced uraniferous countries. Nevertheless, the uranium possibilities of South America are proved by the resources of 250,000 t U already defined (in Argentina and Brazil) for the category of production cost below US $130/kg U. The speculative uranium potential of the continent was estimated by the International Uranium Resources Evaluation Project as between 770,000 and 1,500,000 t U. Within the South American geostructural framework, five main uraniferous geological areas have been defined on the basis of the geotectonic evolution of the continent, the succession of sedimentary and magmatic processes, and the participation in them of the endogenous and exogenous phases of the uranium geochemical cycle. In this paper the principal uranium metallogenic models occurring in the above five main areas are studied together with the uranium potential of each area. The possibility of uranium recovery from these sources in relation to the respective costs of production is briefly discussed

La nouvelle-tableau (2

Directory of Open Access Journals (Sweden)

Géraldine Jenvrin

2012-06-01

Full Text Available La nouvelle « Frémissante, la feuille se flétrit » met en scène le trouble d'un détenu qui par les seuls objets dont il dispose, lutte pour s'échapper intérieurement. L'usage du regard cinématographique porté sur les détails infimes de la matérialité carcérale, leur exposition sous forme de tableaux se faisant échos, les techniques de l’anonymat et du brouillage des repères objectifs, portent à son comble les dimensions énigmatiques et l'esthétique de la  brièveté propre à la nouvelle tout en permettant de  représenter la résistance de l'homme à l'enfermement et à la persécution.

The regional geological and structural setting of the uraniferous granitic provinces of Southern Africa

International Nuclear Information System (INIS)

Jacob, R.E.; Corner, B.; Brynard, H.J.

1986-01-01

Uranium-bearing granites, comprising both potentially economic deposits and source rocks for uranium deposits is duricrustal and sedimentary sequences, are confined chiefly to the mobile belts of Southern Africa and to the Cape granites emplaced during late Precambrian times. The direct uranium potential of the mobile belts, i.e. the Damara, Namaqua-Natal and Limpopo belts, decreases with an increase in the age of associated ensialic diastrophism. This review paper is thus mainly confined to the Damara Belt, although a brief discussion of the potential of the Namaqua Belt is presented. Aspects of the Damara Belt that are discussed in detail, with particular reference to the occurrence of uraniferous granite, include regional tectonic setting, stratigraphy, structure, metamorphism and the patterns and origin of the uranium mineralization. Initial concentrations of uranium in basement and Nosib rocks have led, through ultrametamorphism and fractionation, to uraniferous granites of both economic and sub-economic grade. These granites, in turn, have acted as source of secondary mineralization in overlying superficial calcareous and gypsiferous deposits. The Damara Belt thus provides a good example of multicyclic processes of ore formation. With regard to the uraniferous granites of Namaqualand it is concluded that the porphyroblastic gneisses and late-intrusive Concordia granites, although not of direct economic interest, represent major sources of uranium for secondary superficial deposits. Smaller bodies of late-phase differentiates associated with the Concordia granitic gneiss may themselves, however, represent potentially economically viable deposits

Cationic flotation for separating U-bearing phosphorite mineral from uraniferous phosphatic sandstone deposit of Gebel Qatrani, Western desert of Egypt

International Nuclear Information System (INIS)

Abel Monem, H.M.

1986-01-01

Uraniferous phosphatic sandstone is one of the important radioactive oligocene deposits of Gebel Qatrani, Western desert of Egypt, which is assayed 72,36% SiO 2 , 9.85% P 2 O 5 and 0.091% of oU. Attrition scrubbing process was utilized to assist in the mild of libration of uraniferous phosphorite locked grains of the crushed oversize fraction (+48 mesh). Cationic flotation using AEROMINE 3037 of American Cynamide Company, diluted with kerosene in ratio 1,2 (wt/wt), and 2.5mg/50g pine oil as frothier were used for separating U-bearing phosphorite as hydrophilic mineral from the associated siliceous gangue minerals at pH 6.5. A proposed flowsheet was designed for production of a high grade uraniferous phosphorite concentrate assaying 32.01% P 2 O 5 , 0.39% eU and 5.65% SiO 2 with an overall recovery of 71.98%

Les especes indonesiennes du genre Homalictus Cockerell (Hymenoptera, Apoidea, Halictidae)

NARCIS (Netherlands)

Pauly, A.

1980-01-01

RÉSUMÉ Cette note donne la distribution et des clés pour la séparation des 16 espèces de Homalictus Cockerell (groupe Homalictus, s.str.) recensées en Indonésie, île de NouvelleGuinée excepté. Six espèces nouvelles sont décrites (declivis, kangeani, moearae, ranacus, subdeclivis, vechti) ainsi que

Petroleum-related origin for uraniferous organic-rich nodules of Southwestern Oklahoma

International Nuclear Information System (INIS)

Curiale, J.A.; Bloch, S.; Harrison, W.E.; Rafalska-Bloch, J.

1983-01-01

Geologic field relations and geochemical analyses imply a petroleum-related origin for the organic matter of uraniferous nodules in the Permian Hennessey Group red beds in Kiowa County, Oklahoma. The local presence of crude oil in the shallow subsurface and the absence of local occurrences of plant debris suggest a hydrocarbon-related origin for these nodules. Several oil seeps in the general vicinity of the study area indicate that major steep reverse faults near the nodule site may have provided vertical conduits for petroleum migration from deeper zones. Geochemical analyses of the uraniferous nodules, including infrared spectroscopy and elemental analysis, reveal characteristics of both coal and petroleum. Carbon isotopic analyses favor a petroleum-related origin. A model incorporating field and geochemical evidence is suggested whereby crude oil, migrating from depth, is initially altered near the surface to a more viscous material. Concurrently migrating uranium-bearing ground water is then stripped of its uranium by the degraded petroleum. Therefore, presence of such nodules in the shallow subsurface may suggest buried petroleum deposits. Confirmation of this model must await further study of the effects of radiation damage on organic matter

Nouvelles et activités | Page 6 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

Nouvelles et activités | Page 2 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

Nouvelles et activités | Page 7 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

Nouvelles et activités | Page 5 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

Emanation of radon-222 in uraniferous phosphorite from Pernambuco, Brazil

International Nuclear Information System (INIS)

Santos, M.L.O.; França, E.J.; Amaral, D.S.; Silva, K.E.M.; Hazin, C.A.; Farias, E.E.G.

2017-01-01

The concentration of radon-222 activity available for transport to the surface through the pore space can be defined as radon emanation. From the decay of radium-226, whose half-life is 1850 years, it is associated with the development of neoplasia, such as lung cancer. In the Metropolitan Region of Recife, sedimentary rocks known as phosphorites have been known since 1959, so, from the radiometric characterization of the Paulista and Igarassu Municipality, in Pernambuco, emanation tests were carried out, aiming to determine the emanation power of radon in samples of uraniferous phosphorite from the Recife Metropolitan Region. Initially, 6 independent samples of phosphorites with activity concentration of 226 Ra> 400 Bq kg -1 were comminuted. Portions of 5g were conditioned in a radon chamber with 500 mL volume for measurements. The linear fit of the model converged after 200 interactions with selection of the best fit by the Chi-Square test, through the Origin® 8.0 program. After analysis of the samples, radon emanation power was estimated in the range of 7% to 15%, with a mean value of 10.8%. The methodology used to determine the emanation parameters in samples of uraniferous phosphorite was adequate, observing an inversely proportional relation between the concentration of the radium-226 and the emanation power

Physical and chemical properties of fluid and melt inclusions of the Lagoa Real uraniferous albitites (Brazil)

International Nuclear Information System (INIS)

Chaves, Alexandre de Oliveira

2010-01-01

Data of melt and fluid inclusions obtained by LA-ICP-MS and microthermometry techniques represent an important investigation complement to understand geological processes which took place in Lagoa Real uraniferous albitites (Brazil). Melt inclusions found in augite structure, which reveals the previous presence of U in the syenitic magma. Primary fluid inclusions in magmatic augite of the albitites contain Na, denoting once more its presence in original magma. The formation of andradite from augite during shear events that generated the metamorphosed syenite (uraniferous albitite) was certified by the ICP-MS signals and uranium released by magmatic titanite (U source mineral)during the 1.9 Ga metamorphism was recorded in the fluid inclusions found in andradite, mineral that was formed in this same metamorphic event which recrystallized titanite crystals. Such uranium was responsible by precipitation of the disseminated uraninite found inside andradite. (author)

Flotation of phosphorous-uraniferous minerals from Itataia

International Nuclear Information System (INIS)

Aquino, J.A. de.

1984-01-01

Experimental conditions were established, in laboratory and pilot scales, for the flotation of a sample of a phosphorus-uraniferous mineral from Itataia mines (CE, Brazil), basically composed of apatite and calcite. Laboratory investigations led to the optimization of the most important flotation variables and of the reagents system (tall-oil, collamil and sodium silicate) in the roughing, scavenging and cleaning steps of the process. In pilot scale, flowsheet tests were performed under the same conditions proposed for laboratory studies. The optimization of laboratory conditions led to the following yields: 29.3% of P 2 O 5 concentrates and 73.5% P 2 O 5 recovery. In the pilot scale tests, 28.4% of P 2 O 5 concentrates and 76.7% P 2 O 5 recovery yields were obtained. (Author) [pt

Uraniferous opal, Virgin Valley, Nevada: conditions of formation and implications for uranium exploration

International Nuclear Information System (INIS)

Zielinski, R.A.

1981-01-01

Fission-track radiography shows uranium to be homogeneously dispersed throughout the opal structure, suggesting coprecipitation of dissolved uranium and silica gel. Fluid inclusions preserved within opal replacements of diatomite have homogenization temperatures in the epithermal range and are of low salinity. Four samples of opal from one locality all have U-Pb apparent ages which suggest uraniferous opal precipitation in late Pliocene time. These ages correspond to a period of local, normal faulting, and high-angle faults may have served as vertical conduits for transport of deep, thermalized ground water to shallower levels. Lateral migration of rising solutions occurred at intersections of faults with permeable strata. Silica and some uranium were dissolved from silica-rich host strata of 5-20 ppm original uranium content and reprecipitated as the solutions cooled. The model predicts that in similar geologic settings, ore-grade concentrations of uranium will occur in permeable strata that intersect high-angle faults and that contain uranium source rocks as well as efficient reductant traps for uranium. In the absence of sufficient quantities of reductant materials, uranium will be flushed from the system or will accumulate in low-grade disseminated hosts such as uraniferous opal. (Auth.)

Uraniferous opal, Virgin Valley, Nevada: conditions of formation and implications for uranium exploration

Energy Technology Data Exchange (ETDEWEB)

Zielinski, R A [Geological Survey, Denver, CO (USA)

1981-01-01

Fission-track radiography shows uranium to be homogeneously dispersed throughout the opal structure, suggesting coprecipitation of dissolved uranium and silica gel. Fluid inclusions preserved within opal replacements of diatomite have homogenization temperatures in the epithermal range and are of low salinity. Four samples of opal from one locality all have U-Pb apparent ages which suggest uraniferous opal precipitation in late Pliocene time. These ages correspond to a period of local, normal faulting, and high-angle faults may have served as vertical conduits for transport of deep, thermalized ground water to shallower levels. Lateral migration of rising solutions occurred at intersections of faults with permeable strata. Silica and some uranium were dissolved from silica-rich host strata of 5-20 ppm original uranium content and reprecipitated as the solutions cooled. The model predicts that in similar geologic settings, ore-grade concentrations of uranium will occur in permeable strata that intersect high-angle faults and that contain uranium source rocks as well as efficient reductant traps for uranium. In the absence of sufficient quantities of reductant materials, uranium will be flushed from the system or will accumulate in low-grade disseminated hosts such as uraniferous opal.

EDF Energies Nouvelles. Consolidated financial statements at 31 December 2008 Prepared in accordance with IFRSs

International Nuclear Information System (INIS)

2009-01-01

EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2008. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's consolidated financial statements at 31 December 2008

EDF Energies Nouvelles. Consolidated financial statements at 31 December 2007 Prepared in accordance with IFRSs

International Nuclear Information System (INIS)

2008-01-01

EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2007. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's consolidated financial statements at 31 December 2007

EDF Energies Nouvelles. Consolidated financial statements at 31 December 2006 Prepared in accordance with IFRSs

International Nuclear Information System (INIS)

2007-01-01

EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2006. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's Consolidated financial statements at 31 December 2006

Method for the recovery of uranium from phosphoric acid, originating from the wet-process of uraniferous phosphate ores

International Nuclear Information System (INIS)

Pyrih, R.Z.; Rickard, R.S.; Carrington, O.F.

1978-01-01

Improvement in the process for recoverying uranium from wet-process phosphoric acid solution derived from the acidulation of uraniferous phosphate ores by the use of two ion exchange circuits is described. (Auth.)

Geology of uranium vein-deposits in France; Geologie des gites uraniferes et filoniens en France

Energy Technology Data Exchange (ETDEWEB)

Sarcia, J A; Carrat, J; Poughon, A; Sanselme, H [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1958-07-01

This paper gives an outline of the characteristics of the main uranium vein deposits in France; it underlines the structural, petrographic and metallogenic similarities of these deposits. (author) [French] La note presente est un expose des caracteres generaux des principaux gites uraniferes filoniens de France; elle insiste sur les similitudes structurales, petrographiques et metallogeniques de ces gisements. (auteur)

Jean Gadrey, Nouvelle économie, nouveau mythe ?

Directory of Open Access Journals (Sweden)

Diane-Gabrielle Tremblay

2002-10-01

Full Text Available La « nouvelle économie » est partout dans les médias nord-américains, comme européens. L’ouvrage de Jean Gadrey est rafraîchissant, car il présente une critique et une analyse minutieuse du concept, de son apparition, des développements qui y sont associés, des thèses et idées défendues au nom de la « nouvelle économie ».Comme il le note bien « les mythes mobilisateurs fleurissent, mais la réflexion sur les contours de cet âge et sur les risques sociaux à prévenir est inexistante : les formul...

Effect of mineral constituents in the bioleaching of uranium from uraniferous sedimentary rock samples, Southwestern Sinai, Egypt.

Science.gov (United States)

Amin, Maisa M; Elaassy, Ibrahim E; El-Feky, Mohamed G; Sallam, Abdel Sattar M; Talaat, Mona S; Kawady, Nilly A

2014-08-01

Bioleaching, like Biotechnology uses microorganisms to extract metals from their ore materials, whereas microbial activity has an appreciable effect on the dissolution of toxic metals and radionuclides. Bioleaching of uranium was carried out with isolated fungi from uraniferous sedimentary rocks from Southwestern Sinai, Egypt. Eight fungal species were isolated from different grades of uraniferous samples. The bio-dissolution experiments showed that Aspergillus niger and Aspergillus terreus exhibited the highest leaching efficiencies of uranium from the studied samples. Through monitoring the bio-dissolution process, the uranium grade and mineralogic constituents of the ore material proved to play an important role in the bioleaching process. The tested samples asserted that the optimum conditions of uranium leaching are: 7 days incubation time, 3% pulp density, 30 °C incubation temperature and pH 3. Both fungi produced the organic acids, namely; oxalic, acetic, citric, formic, malonic, galic and ascorbic in the culture filtrate, indicating an important role in the bioleaching processes. Copyright © 2014 Elsevier Ltd. All rights reserved.

L’Observatoire numérique Nouvelle-Calédonie

Directory of Open Access Journals (Sweden)

Charlotte Ullmann

2013-06-01

Full Text Available Ses missions consistent à observer le développement numérique et favoriser l’animation territoriale des acteurs en Nouvelle-Calédonie. Parrainée par l’association calédonienne pour les technologies de l’information et de la communication (ACTIC et le ministère en charge de l’économie numérique du Gouvernement de Nouvelle-Calédonie nommé depuis mai 2009, une mission d’étude a été menée depuis juin 2010 pour définir les contours d’un Observatoire numérique. A travers cette étude, il s’agissai...

Report on the survey of abandoned uraniferous lignite mines in southwestern North Dakota

International Nuclear Information System (INIS)

Lyon, R.J.; Prochaska, D.; Burgess, J.L.; Patrick, D.

1986-03-01

A radiation survey was conducted in October 1983 as part of the proposed reclamation plan of abandoned uraniferous lignite mines in southwestern North Dakota. The survey was made to determine the extent of contamination caused by mining operations in the 1960's. Radiation measurements were made and soil samples were taken at approximately 300 locations around six mine sites comprising eleven lignite mine pits. Toxic element analysis was also done on 50 of the soil samples

Different periods of uranium and thorium occurrence in Madagascar (1960); Cycles uraniferes et thoriferes a Madagascar (1960)

Energy Technology Data Exchange (ETDEWEB)

Moreau, M [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1960-07-01

In Madagascar, the first typical occurrences of thorium and uranium are about 500 million years old. Previously thorium and uranium were rather concentrated in the granitic and charnockitic zones, chiefly in minerals such as monazite, apatite and zircon. At the end of the Precambrian period, metasomatic granites occur especially in the anticlinal series (Andriba orthite granite). The granitization is followed by the formation of the main pegmatitic areas in the Island with Th-U niobotantalates, uraninite and beryl. The pegmatites are well developed in the synclinal series with a poor migmatization or no migmatization at all. In the same time a large uranium and thorium province with uranothorianite deposits appears within the calcomagnesian series of the Southern part of Madagascar. Later, large amounts of monazite were carried down to the detritic Karroo sediments during tile erosion of the metamorphic precambrian rocks. Monazite has been concentrated again by frequent marine incursions, till the present time. In the medium Karroo, near Folakara, uranium minerals occur in direct relation with carbonaceous material. Finally we must note the uranium occurrence in the pleistocene carbonaceous shales of Antsirabe basin, in contact with crystalline rocks. (author) [French] A Madagascar, le premier cycle uranifere et thorifere bien caracterise se situe aux alentours de 500 millions d'annees. Auparavant, le thorium et l'uranium sont concentres de preference dans les zones granitiques et charnockites sous forme de monazite, apatite ou zircon. Vers la fin du Precambrien, se produisent des granitisations metasomatiques, surtout dans les zones anticlinales (type Andriba a orthite). La fin de cette granitisation s'accompagne de la formation des principaux champs pegmatitiques de l'Ile a niobotantalates uraniferes, uraninite et beryl, qui se developpent de preference dans les series synclinales peu ou pas migmatisees. A cette meme epoque s'individualise au sein des series

Leaching characteristics of Wadi Belih uraniferous Hammamat sediments,eastern desert,Egypt

International Nuclear Information System (INIS)

Mahdy, M.A.; EL-Hazek, M.N.

1998-01-01

This work deals with the direct chemical treatment of Wadi Belih uraniferous ore material using the agitation leaching technique. The study ore is mainly localized in siltstones belonging to the Hammamat sediments situated in the northern part of the eastern desert. The uranium mineral in the ore are mainly represented by the silicate mineral uranophane, the vanadate mineral tyuyamunite and to a laser extent the sulphate mineral shroekingerite, both acid (sulphuric acid) alkaline (sodium carbonate and bicarbonate) leaching methods have been applied beside sodium and ferric chlorides. The latter leaching reagents are greatly beneficial in removing radium together with uranium, a matter which is greatly important for environmental concerns

Reclamation of a uraniferous lignite mine, North Dakota: summary paper

International Nuclear Information System (INIS)

Houghton, R.L.; Hall, R.L.; Unseth, J.D.; Wald, J.D.; Burgess, J.L.; Patrick, D.P.; Anderson, G.S.; Hill, S.R.

1987-01-01

Uraniferous lignite deposits were mined from 1955 to 1967 by surface mining techniques. Overburden was stripped, and the lignite was burned to concentrate the uranium in its ash. Uranium salts in the overburden gave exposure levels of as much as 500 microroentgens/hour; water in mine pits had U concentrations from 12 to 19,000 micrograms/liter. Reclamation involved replacing the spoils into the source pit, the most contaminated spoils being placed above the water table, capping the pit with clay then topsoil containing lesser concentrations of radioactive elements, and finally planting with prairie grass. Resulting concentrations of radionuclides are given. The land is expected to remain as prairie for wildlife use, but it is safe enough for domestic animals as well. 3 figures

Uraniferous minerals heap leaching process by counter techique

International Nuclear Information System (INIS)

Fuentes G, D.A.

1978-01-01

An experimental study was made at laboratory level with respect to a process for the treatment of an uranium ore by counter current acid heap leaching with maturity periods and washing. This mineral with an average grade of 0.24% of U 3 O 8 from the levels zero-fourty of the El Nopal uraniferous deposit, located in the Sierra of Pena Blanca, State of Chihuahua (Mexico). The process which is proposed consist of 4 consecutive stages: a) The prehumectation with a fertile solution of a 0.0034 g U 3 O 8 /1 and 3 g H 2 SO 4 /l concentration, b) The counter current acid attack, c) The maturity or hardening, d) The washing with current water. The relaton liquid-solid in the stages of prehumectation, acid attack, as well as washing stage was of 0.3 m 3 /t. The average efficiency was of 77% of recovered *uranium. (author)

Environmental assessment of remedial action at the inactive uraniferous lignite processing sites at Belfield and Bowman, North Dakota

International Nuclear Information System (INIS)

Beranich, S.; Berger, N.; Bierley, D.; Bond, T.M.; Burt, C.; Caldwell, J.A.; Dery, V.A.; Dutcher, A.; Glover, W.A.; Heydenburg, R.J.; Larson, N.B.; Lindsey, G.; Longley, J.M.; Millard, J.B.; Miller, M.; Peel, R.C.; Persson-Reeves, C.H.; Titus, F.B.; Wagner, L.

1989-09-01

The Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA), to clean up the Belfield and Bowman, North Dakota, uraniferous lignite processing sites to reduce the potential health impacts associated with the residual radioactive materials remaining at these sites. Remedial action at these sites must be performed in accordance with the US Environmental Protection Agency's (EPA) standards promulgated for the remedial action and with the concurrence of the US Nuclear Regulatory Commission (NRC) and the state of North Dakota. The inactive Belfield uraniferous lignite processing site is one mile southeast of Belfield, North Dakota. The inactive Bowman uraniferous lignite processing site at the former town of Griffin, is seven miles northwest of Bowman, North Dakota and 65 road miles south of Belfield. Lignite ash from the processing operations has contaminated the soils over the entire 10.7-acre designated Belfield site and the entire 12.1-acre designated Bowman site. Dispersion of the ash has contaminated an additional 20.6 acres surrounding the Belfield processing site and an additional 59.2 acres surrounding the Bowman processing site. The proposed remedial action is to relocate the contaminated materials at the Belfield processing site to the Bowman processing/disposal site for codisposal with the Bowman contaminated soils. The environmental impacts assessed in this EA were evaluated for the proposed remedial action and the no action alternative and demonstrate that the proposed action would not significantly affect the quality of the human environment and would be performed in compliance with applicable environmental laws. The no action alternative would not be consistent with the intent of Public Law 95-604 and would not comply with the EPA standards. 48 refs., 10 figs., 7 tabs

New geological model of the Lagoa Real uraniferous albitites from Bahia (Brazil)

Science.gov (United States)

de Oliveira Chaves, Alexandre

2013-09-01

New evidence supported by petrography (including mineral chemistry), lithogeochemistry, U-Pb geochronology by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS), and physicochemical study of fluid and melt inclusions by LA-ICP-MS and microthermometry, point to an orogenic setting of Lagoa Real (Bahia-Brazil) involving uraniferous mineralization. Unlike the previous models in which uraniferous albitites represent Na-metasomatised 1.75 Ga anorogenic granitic rocks, it is understood here that they correspond to metamorphosed sodium-rich and quartz-free 1.9 Ga late-orogenic syenitic rocks (Na-metasyenites). These syenitic rocks are rich not only in albite, but also in U-rich titanite (source of uranium). The interpretation of geochemical data points to a petrogenetic connection between alkali-diorite (local amphibolite protolith) and sodic syenite by fractional crystallization through a transalkaline series. This magmatic differentiation occurred either before or during shear processes, which in turn led to albitite and amphibolite formation. The metamorphic reactions, which include intense recrystallization of magmatic minerals, led uraninite to precipitate at 1.87 Ga under Oxidation/Reduction control. A second population of uraninites was also generated by the reactivation of shear zones during the 0.6 Ga Brasiliano Orogeny. The geotectonic implications include the importance of the Orosirian event in the Paramirim Block during paleoproterozoic Săo Francisco Craton edification and the influence of the Brasiliano event in the Paramirim Block during the West-Gondwana assembly processes. The regional microcline-gneiss, whose protolith is a 2.0 Ga syn-collisional potassic granite, represents the albitite host rock. The microcilne-gneiss has no petrogenetic association to the syenite (albitite protolith) in magmatic evolutionary terms.

Uraniferous concentrations in the Francevillian of Gabon: their association with fossil hydrocarbon-bearing ore deposits of the lower Proterozoic

International Nuclear Information System (INIS)

Gauthier-Lafaye, Francois; Weber, Francis

1981-01-01

The Francevillian U deposits of Gabon are located in one of the oldest non metamorphic sedimentary series of the Lower Proterozoic 2150 M.Y. old. The uraniferous mineralization 2050 M.Y. old is strongly related to organic matter concentrated in oil-bearing structures after migration. No geological event remobilized the mineralizations since their settling [fr

Access. Challenge for Change/Societe Nouvelle Number Eleven.

Science.gov (United States)

Prinn, Elizabeth, Ed.

Access is a journal published three or four times a year by Challenge for Change/Societe Nouvelle (CCSN). CCSN is an experimental program established by the Government of Canada as a cooperative effort between the National Film Board of Canada and certain of the Government's departments. Its purposes are to improve communications, create greater…

Access. Challenge for Change/Societe Nouvelle Number Twelve.

Science.gov (United States)

Prinn, Elizabeth, Ed.; Henaut, Dorothy Todd, Ed.

This issue of Access, the journal issued periodically by Challenge for Change/Societe Nouvelle, contains two groups of articles. The first focuses upon the Skyriver Project, relating how a project was developed which used film and video tape as a means of helping Alaskan communities to assess their own needs and to advocate for themselves the…

Metalogenic study of the uraniferous ore deposit at La Coma, Municipio of General Bravo, N.L. Mexico

International Nuclear Information System (INIS)

Ferriz D, H.

1977-01-01

The uraniferous ore deposit at la Coma is located in a sandy-clayish sequence of the cold formation (non marine member) of the middle oligocene under peneconcordant lenses within a sandy body, situated on the North flank of a microdelta formed by small streams which ran from West to East. The metalogenic study of this ore deposit, permits us to establish mineralization controls and guides for the optimization of the uranium prospecting in the miogeoclinical of the Gulf of Mexico setting. The study was carried out on the basis of sedimentalogic and metalogenic criteria, and it was found that the mineralization process seems to be related to the formation and filling of a paleochannel which cut the microdelta permeable beds. The uraniferous solutions migrated through the conglomeratic filling of the paleochannel and reached this way the permeable horizons of the microdelta, where they infiltrated adopting a pattern like an apron. In the sites where the solutions reached sandy lenses rich in organic matter, the soluble compounds containing the uranium suffered a decomposition with the consequent absorption of the uranium by the organic matter, due to the decrease of the pH value. In conclusion, the favorableness of the environment for mineralization is defined by the convergence of the described paleo-geomorphologic elements. (author)

Nouvelle espèce des Syntomides (Lepidoptera Heterocera)

NARCIS (Netherlands)

Snellen, P.C.T.

1886-01-01

Quatre mâles frais et bien conservés de 58—64 millim. d’envergure. Cette nouvelle espèce, gigantesque pour une Syntomide, appartient au genre Automolis, tel qu’il a été défini par Herrich-Schäffer, dans son ouvrage »Sammlung aussereuropäischer Schmetterlinge” (p. 21); le nom est emprunté au bien

The geochronology or uraniferous minerals in the Witwatersrand Triad; and interpretation of new and existing U-Pb age data on rocks and minerals from the Dominion Reef, Witwatersrand and Ventersdorp Supergroups

International Nuclear Information System (INIS)

Rundle, C.C.; Snelling, N.J.

1977-01-01

Uranium and lead analysis of rock samples from the Witwatersrand, Ventersdorp, and Transvaal supergroups give mainly discordant ages. Samples from the Upper Witwatersrand of the Orange Free State give 207 Pb/ 206 Pb ages of ca. 3000 Ma. These data when considered together with earlier total conglomerate U-Pb analyses from the Dominion Reef Supergroup lead to the conclusion that the uraniferous minerals of the Dominion Reef, Witwatersrand, Ventersdorp and Transvaal conglomerates are 3050 +- 50 Ma old. In the northern parts of the Witwatersrand Basin the parent uraniferous minerals experienced a major reworking at 2040 +- 100 Ma which brought about the partial or complete resetting of the original 3050 Ma age. Radiogenic lead released during this reworking crystallized as galena in veins and fissures which cut across the uraniferous conglomerate horizons. This reworking appears to have had little effect in the Orange Free State to the south. Its age and geographical extent suggest it was caused by thermal effects which accompanied the emplacement of the Bushveld Igneous Complex at 1950 +- 150 Ma. Samples from the South, which were relatively unaffected by the ca. 2040 Ma reworking generally show the effects of recent uranium loss. In the northern part of the basin discordant age patterns characteristic of lead loss have been imposed on uranium-lead systems which were generally reset (partially or completely) by the ca. 2040 Ma event. The presence of 3050 Ma old minerals in sedimentary sequences which are probably younger than ca. 2740 Ma suggest the simple interpretation that the uraniferous minerals are predominantly detrital. (author)

Baseline risk assessment of ground water contamination at the inactive uraniferous lignite ashing site near Bowman, North Dakota

Energy Technology Data Exchange (ETDEWEB)

1994-11-01

This baseline risk assessment of ground water contamination at the inactive uraniferous lignite ashing site near Bowman, North Dakota, evaluates the potential impacts to public health or the environment from contaminated ground water at this site. This contamination is a result of the uraniferous lignite ashing process, when coal containing uranium was burned to produce uranium. Potential risk is quantified only for constituents introduced by the processing activities and not for the constituents naturally occurring in background ground water in the site vicinity. Background ground water, separate from any site-related contamination, imposes a percentage of the overall risk from ground water ingestion in the Bowman site vicinity. The US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project is developing plans to address soil and ground water contamination at the site. The UMTRA Surface Project involves the determination of the extent of soil contamination and design of an engineered disposal cell for long-term storage of contaminated materials. The UMTRA Ground Water Project evaluates ground water contamination. Based on results from future site monitoring activities as defined in the site observational work plan and results from this risk assessment, the DOE will propose an approach for managing contaminated ground water at the Bowman site.

Baseline risk assessment of ground water contamination at the inactive uraniferous lignite ashing site near Bowman, North Dakota

International Nuclear Information System (INIS)

1994-11-01

This baseline risk assessment of ground water contamination at the inactive uraniferous lignite ashing site near Bowman, North Dakota, evaluates the potential impacts to public health or the environment from contaminated ground water at this site. This contamination is a result of the uraniferous lignite ashing process, when coal containing uranium was burned to produce uranium. Potential risk is quantified only for constituents introduced by the processing activities and not for the constituents naturally occurring in background ground water in the site vicinity. Background ground water, separate from any site-related contamination, imposes a percentage of the overall risk from ground water ingestion in the Bowman site vicinity. The US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project is developing plans to address soil and ground water contamination at the site. The UMTRA Surface Project involves the determination of the extent of soil contamination and design of an engineered disposal cell for long-term storage of contaminated materials. The UMTRA Ground Water Project evaluates ground water contamination. Based on results from future site monitoring activities as defined in the site observational work plan and results from this risk assessment, the DOE will propose an approach for managing contaminated ground water at the Bowman site

Superficie Específica y Estado Vital de la Materia

OpenAIRE

J. Hernando Ordoñez

1992-01-01

Se propone reemplazar el término de materia viva por el de estado vital de la materia por considerarlo adecuado, pues la materia es la misma, lo que cambia es su estado. Se estudia la relación entre la superficie específica y el estado vital de la materia. Constante del estado vital y el valor crítico de la superficie específica. Qué es la fuerza de inducción vital? Diferenciación funcional de las células. Cómo regula la unidad biológica su superficie específica? La materia que piens...

Performances d'une nouvelle approche dans l'estimation au champ

African Journals Online (AJOL)

ACSS

Elle possède cependant des limitations, dues à l'organisation temporaire d'une .... Performances d'une nouvelle approche dans l'estimation au champ utilisant le principe de la ... différents types de résidus (soja, luzerne, haricot et maïs) et ...

The reduction of organic component content, of molybdenum and coloidal silica in chlorosodium uraniferous eluates

International Nuclear Information System (INIS)

Filip, Gheorghe; Panturu, Eugenia; Radulescu, Rozalia; Predescu, Cristian; Filip, Dorin Gheorghe

2006-01-01

In this paper, the experimental results obtained at a laboratory facility for molybdenum, silica and organic substances removal from sodium chloride uraniferous eluate solutions are presented. The aim of this study is to obtain uranium yellow cakes having product quality specification, in order to enable their conversion in nuclear grade uranium dioxide. The studied variables were the contents for silica and organic substances at the acidifying and filtration of uranium eluates, residual molybdenum content in refined eluates after adsorption on activated carbon MN+P type. The chemical characterization of uranium concentrate obtained from the refined eluate is presented. (author)

Geology and uranium occurrences in the Forez tertiary plain (in the French 'Massif Central'); Geologie et mineralisations uraniferes de la plaine tertiaire du Forez (Massif Central francais)

Energy Technology Data Exchange (ETDEWEB)

Duclos, P [Commissariat a l' Energie Atomique, Fontenay-aux-Roses - 92 (France). Centre d' Etudes Nucleaires

1967-01-01

In the first part, the observations made during the geological survey of the Forez Tertiary plain (in the French 'Massif Central') are recalled. Then, using various methods, the author lists the formations according to chronology. Finally, a reconstitution of the geological history of this subsidence basin is attempted. In the second part, the occurrence of 17 uranium bearing geochemical anomalies is commented upon. Each of these various anomalies is given a place on the stratigraphic scale. This enables the author to put the successive phases of uranium deposition into their proper perspective in the history of the plain. In conclusion, the author points out the usefulness of these uraniferous geochemical anomalies. (author) [French] Dans la premiere partie, l'auteur rappelle les observations faites au cours de l'etude geologique de la plaine tertiaire du Forez (Massif Central francais). Puis se servant de differentes methodes, il etablit une chronologie des formations. Enfin, il termine par un essai de reconstitution de l'histoire geologique de ce bassin de subsidence. Dans la deuxieme partie, il commente la decouverte de 17 anomalies geochimiques uraniferes. Il situe ces differentes anomalies dans la serie stratigraphique. Ceci lui permet de replacer les depots successifs de l'uranium dans l'histoire de la plaine. Enfin, il indique l'interet de ces anomalies geochimiques uraniferes. (auteur)

Toxoplasmose : une nouvelle approche vaccinale à base de nanoparticules d’amidon donne des résultats prometteurs

OpenAIRE

Le Rouzic, Jacques

2015-01-01

Pour lutter contre la toxoplasmose chez les ovins, des chercheurs de l’INRA, de l’Université de Tours et de la Faculté de Médecine de Lille ont développé une nouvelle approche vaccinale, utilisant des nanoparticules d’amidon et une administration par voie muqueuse. Cette approche ouvre de nouvelles perspectives vers des vaccins plus sûrs et plus efficaces.

La viticulture bio, une nouvelle modernité

OpenAIRE

Raphaël Schirmer

2004-01-01

Les difficultés d'expansion de la viticulture biologique en France proviennent avant tout de la rupture conséquente qu'elle introduit en ce qui concerne notre rapport à l'espace. La place de l'agriculteur dans la société est refondée, les paysages tels que nous les entendions sont bouleversés. Il semble bien qu'une nouvelle modernité soit en train de se développer, à côté de tant d'autres il est vrai.

Preliminary investigation on the sedimentary facies of the middle silurian uraniferous rock formations in western Qinling Region

International Nuclear Information System (INIS)

Mao Yunian; Min Yongming.

1987-01-01

The Middle Silurian stratabound uranium deposits in Western Qinling were formed due to hydrothermal modification of ground water and reconcentration of uranium from the sedimentary source rocks. The Silurian system consists of the sediments deposited in the marginal sea of the passive continent, to the south of which is the Ruoergai palaeocontinent. The Middle Silurian is divided into three formations. The lower members of each formation are composed of fine-grained clastic rocks with bay-lagoon facies, while the upper members of each formation are uraniferous rock formations consisted of carbonaceous-siliceous-limestone-argillaceous rocks. During the Middle Silurian period there occurred an island chain barrier which is roughly parallel to the palaeocoast and was formed by undersea uplifts. The uraniferous rock formations belong to the assemblage of lagoon-reef-back tidal flat-reef beach facies. Nearshore shallow water environment, abundant terrestrial fine detritus, local reduction facies and zones are three cardinal conditions for the formation of uranium-rich sediments. Uranium deposition mainly took place in the environments of the inner part of reef beach and reef-back tidal flat, which are characterized by having medium to slightly lower energy, the terrestrial fine detritus involved, and local reduction field resulting from the decomposition of organism after their massive death. Furing the process of relative slow deposition, UO 2 2+ in the sea water was formed by means of infiltration, diffusion and alternative absorption of water at the bottom into organic matter and clay

Effect of mineral constituents in the bioleaching of uranium from uraniferous sedimentary rock samples, Southwestern Sinai, Egypt

International Nuclear Information System (INIS)

Amin, Maisa M.; Elaassy, Ibrahim E.; El-Feky, Mohamed G.; Sallam, Abdel Sattar M.; Talaat, Mona S.; Kawady, Nilly A.

2014-01-01

Bioleaching, like Biotechnology uses microorganisms to extract metals from their ore materials, whereas microbial activity has an appreciable effect on the dissolution of toxic metals and radionuclides. Bioleaching of uranium was carried out with isolated fungi from uraniferous sedimentary rocks from Southwestern Sinai, Egypt. Eight fungal species were isolated from different grades of uraniferous samples. The bio-dissolution experiments showed that Aspergillus niger and Aspergillus terreus exhibited the highest leaching efficiencies of uranium from the studied samples. Through monitoring the bio-dissolution process, the uranium grade and mineralogic constituents of the ore material proved to play an important role in the bioleaching process. The tested samples asserted that the optimum conditions of uranium leaching are: 7 days incubation time, 3% pulp density, 30 °C incubation temperature and pH 3. Both fungi produced the organic acids, namely; oxalic, acetic, citric, formic, malonic, galic and ascorbic in the culture filtrate, indicating an important role in the bioleaching processes. - Highlights: • Aspergillus niger and Aspergillus terreus are the only isolates achieved highest leaching efficiency of uranium from the studied samples. • Bioleaching process directly related to variations in mineral constituents and uranium grades. • The optimum conditions of uranium bioleaching from its ores, were found to be 7 days, 3% pulp density, pH 3 and 30 °C. • A. niger and A. terreus organic acids play an important and effective role for uranium leaching process

Physico - chemical Up-grading studies of uraniferous xenotime mineral from ferruginous siltstone sediments of Um hamd, Um bogma area, sinai, Egypt

International Nuclear Information System (INIS)

Abdel-Monem, H.M.; Elassy, I.E.; Bishay, A.F.; El-Kammar, A.M.

1998-01-01

The exposed paleozoic deposits at Um Bogma area in west central sinai contain three main units namely; the lower sandstone, the middle carbonate and the upper sandstone. These units are composed of intercalation of clay minerals, sand, carbonate and iron oxides.The upper layers of the lower sandstone and the base of the middle carbonate units contain possible resources of anomalously uraniferous xenotime (YPO 4 ). Xenotime, being preferentially concentrated with the very fine grain sizes, is more abundant in the argillaceous sediments. The associated clay minerals are represented by kaolinite the non-clay minerals include hematite, goethite and quartz.The up-grading of uraniferous xenotime from a bulk head sample assaying 1.44% Y 2 O 3 was performed by collaborative technological processes that include; liquid/liquid separation using two immiscible liquids (CCI 4 and H 2 O) and finally acid leaching. By applying the proposed flowsheet, more than 90% of xenotime is recovered with an assay value of more than 45% Y 2 O 3 . The simplicity of the proposed flowsheet allows it to be adopted to semi-industrial or even industrial purposes

Effects of post-burial siliceous diagenesis deformations on the microthermometric behaviour of fluid inclusions: an example in the Francevillian uraniferous sandstone reservoir (Gabon)

International Nuclear Information System (INIS)

Gauthier-Lafaye, F.; Weber, F.

1984-01-01

New data about fluid inclusions associated to a siliceous diagenesis show that a deformation phase in the first stage of catagenesis disturbed their microthermometric behaviour. Nevertheless, temperature and pressure of fluids associated to the uraniferous paragenesis and contemporary with the Oklo natural reactors are estimated at 140-160 0 C and 250-500 bar [fr

Une nouvelle vision pour AfricaAdapt – Entrevue avec Moussa Na ...

International Development Research Centre (IDRC) Digital Library (Canada)

24 févr. 2011 ... Réseau panafricain lancé en mai 2009, AfricaAdapt vient de recevoir le feu vert pour l'exécution d'une nouvelle phase d'activités de deux ans, qu'appuie le programme Adaptation aux changements climatiques en Afrique.

Geology and uranium occurrences in the Forez tertiary plain (in the French 'Massif Central'); Geologie et mineralisations uraniferes de la plaine tertiaire du Forez (Massif Central francais)

Energy Technology Data Exchange (ETDEWEB)

Duclos, P. [Commissariat a l' Energie Atomique, Fontenay-aux-Roses - 92 (France). Centre d' Etudes Nucleaires

1967-01-01

In the first part, the observations made during the geological survey of the Forez Tertiary plain (in the French 'Massif Central') are recalled. Then, using various methods, the author lists the formations according to chronology. Finally, a reconstitution of the geological history of this subsidence basin is attempted. In the second part, the occurrence of 17 uranium bearing geochemical anomalies is commented upon. Each of these various anomalies is given a place on the stratigraphic scale. This enables the author to put the successive phases of uranium deposition into their proper perspective in the history of the plain. In conclusion, the author points out the usefulness of these uraniferous geochemical anomalies. (author) [French] Dans la premiere partie, l'auteur rappelle les observations faites au cours de l'etude geologique de la plaine tertiaire du Forez (Massif Central francais). Puis se servant de differentes methodes, il etablit une chronologie des formations. Enfin, il termine par un essai de reconstitution de l'histoire geologique de ce bassin de subsidence. Dans la deuxieme partie, il commente la decouverte de 17 anomalies geochimiques uraniferes. Il situe ces differentes anomalies dans la serie stratigraphique. Ceci lui permet de replacer les depots successifs de l'uranium dans l'histoire de la plaine. Enfin, il indique l'interet de ces anomalies geochimiques uraniferes. (auteur)

Discours rationnel vs discours passionnel. Analyse sémiotique d’un fragment de la Nouvelle Héloïse

Directory of Open Access Journals (Sweden)

Alexandrina Mustăţea

2007-05-01

Full Text Available Roman sentimental, La Nouvelle Héloïse double son parcours narratif d’un parcours émotionnel et sensoriel qui dessine ce que l’on pourrait nommer la configuration passionnelle de l’ensemble textuel. Roman épistolaire, La Nouvelle Héloïse situe le foyer de la passion dans le corps même du scripteur de la lettre, à la fois être du monde sensible et instance discursive.

The fines recovery of the phosphoro-uraniferous ores from Itataia-CE

International Nuclear Information System (INIS)

Furtado, J.R.V.

1985-01-01

Cyclone desliming previous to flotation is one of the determining factors of the concentration performance of phosfate ores. The physical beneficiation of the phosphoro uraniferous ore of Itataia, carried out in the pilot plant, rejects approximately 10,5% P 2 O 5 and 14% U 3 O 8 contained as ''slimes''. The present investigation was to develop a process to recover the fines through the tecniques of flotation and Seletive Floculation. The low P 2 O 5 content and extremely small size of the ''slimes'', led to a low efficiency in the operation of either flotation. The introduction of a Second disliming step swhed promising results. It is work mentioning that the ore presents siliceous-carbonatic gangue and that the direct flotation of phosphates rejects only the silicate portion. Direct flotation followed by reverse flotation of carbonates led to phosphate concentrates containing 28% P 2 O 5 with recoveries of 60%. The results obtained indicate that the fines treatment may lead to increase of 4,5% in overall recovery without decreasing the grade of the final concentrate. (C.D.G.) [pt

Régler les conflits locaux en Amérique latine : de nouvelles ...

International Development Research Centre (IDRC) Digital Library (Canada)

Au cours de la dernière décennie, les conflits locaux se sont répandus dans toute ... conjuguées à de nouvelles façons de concevoir la nature des conflits locaux. ... En partenariat avec l'Organization for Women in Science for the Developing ...

Nouvelles de l'Italie sur la linguistique et l'education

Directory of Open Access Journals (Sweden)

Raffaele Simone

1984-12-01

Full Text Available L'auteur donne. des informations sur l'état actuel des débats concernant le développement du langage dans l'école italienne d'aujourd'hui, et prop6se U:ne "nouvelle" notion de linguistique appliquée, considérée en tant que confrontation de systèmes de sens, plutôt de systèmes de formes.

La hernie ombilicale africaine : nouvelle classification et revue de 30 ...

African Journals Online (AJOL)

L'objectif de ce travail était de proposer une nouvelle classification de la hernie ombilicale de l'enfant africain et d'évaluer les résultats du traitement chirurgical.Il s'agit d'une étude prospective portant sur 30 patients porteurs de hernie ombilicale, qui s'est déroulée sur une période de un an et demi dans les services de ...

Application of resistivity measurements to research on structural elements in the Nord-Limousin (France) uraniferous basin (1960); Application des mesures de resistivite a la recherche des elements structuraux dans le bassin uranifere du Nord-Limousin (France) (1960)

Energy Technology Data Exchange (ETDEWEB)

Sarcia, J A; Bonnet, J; Combe, R [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1960-07-01

The authors discuss the difficulties encountered in the exploration of a typical deposit in the Nord-Limousin, using the resistivity measurement method. In the zone in question the over-thrust was very variable and difficult to predict. The uraniferous deposits had two types of aspect, the passage from one to the other being often very sudden: long thin veins without gangue; short and thick lens-shape deposits which were strongly contaminated by clay towards their edges. After several unsatisfactory attempts, the device known as the 'rectangular map' was adopted and gave an acceptable structural representation rapidly and cheaply. For the placing of the probes however, methods are required which are more refined and sensitive. It is in any case useless to expect to obtain a satisfactory representation and a sufficient accuracy using a single technique; especially in the region under consideration. (author) [French] Les auteurs exposent les difficultes rencontrees pour l'exploration, par la methode des mesures de resistivite, d'un gisement type du Nord-Limousin: il s'agissait d'une zone a recouvrement tres variable et difficilement previsible. Les occurences uraniferes y affectaient deux facies passant brutalement de l'un a l'autre: longs filonnets minces et sans gangue; lentilles courtes et puissantes avec alteration argileuses tres etendue aux epontes. Apres plusieurs essais peu satisfaisants, le dispositif dit 'carte des rectangles' a ete adopte pour obtenir rapidement et a bon compte un schema structural suffisant. Mais des methodes plus fines et plus sensibles sont necessaires pour guider l'implantation des sondages. Il est d'ailleurs vain d'esperer trouver a la fois la representativite d'ensemble et la precision, dans l'utilisation d'une seule technique, surtout dans la region envisagee. (auteur)

Radioactive equilibrium of uranium-bearing ores in some problems of applied geology; Les equilibres radioactifs des menerais uraniferes dans quelques problemes de geologie appliquee

Energy Technology Data Exchange (ETDEWEB)

Coulomb, R; Girard, Ph; Goldsztein, M [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1964-07-01

The state of equilibrium between several nuclides in radioactive relationship is determined with accuracy by the fundamental equations of radioactivity. It can be measured physically and expressed in suitable and internationally adopted units; Equilibrium - disequilibrium of uranium-bearing ores is a fairly complex phenomenon but the problem can be much simplified by well-chosen approximations in various practical field cases. The results of radiometric and radiochemical measurements lead to the interpretation of geochemical anomalies and may be used in the qualitative and quantitative estimation of uranium bearing deposits. (authors) [French] L'etat d'equilibre entre plusieurs radioelements en filiation se definit avec precision par les equations fondamentales de la radioactivite et peut etre determine par des mesures physiques dans des systemes d'unites commodes et internationalement adoptes. Le probleme general equilibre-desequilibre des minerais uraniferes est relativement complexe, mais peut se simplifier largement par des approximations judicieuses dans de nombreux cas particuliers rencontres concretement sur le terrain. Les resultats des mesures radiometriques et radiochimiques permettent l'interpretation des anomalies geochimiques et peuvent servir a l'estimation qualitative et quantitative des gisements de minerais uraniferes. (auteurs)

Synthèse, étude toxicologique et activité psychotrope de nouvelles ...

African Journals Online (AJOL)

Hilaire

Pharmacology. Synthèse, étude toxicologique et activité psychotrope de nouvelles arylidènpyridazin-. 3-ones N-substituées. Adnane BENMOUSSA1*, Pascal Manuele KANYONGA2,3, M'Hammed ANSAR1, Amina ZELLOU2, J EL. HARTI1, Jamal LAMSAOURI1, My Abbes FAOUZI2 , Ahmed ZAHIDI1, Hamid BENZIANE1, ...

Une nouvelle vision de la transition en Syrie | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Une nouvelle vision de la transition en Syrie. 07 juin 2016. Bénéficiaire : Syrian Center for Political and Strategic Studies (SCPSS) Période visée : de juillet 2012 à août 2013. État : en cours de clôture. Financement accordé : 441 000 CAD. La Coalition nationale syrienne a officiellement donné son aval à une feuille de route ...

Nouvelles et activités | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

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Considerations on the phosophoro-uraniferous mineralization of Itataia deposit-CE, Brazil

International Nuclear Information System (INIS)

Mendonca, J.C.G.S.; Braga, A. de P.G.; Campos, M. de.

1980-01-01

Phosphoro-uraniferous deposit of Itataia is situated in Precambrian metamorphic terrains, into the litho-stratigraphic unit named Caico Complex. Regionally, the rocks are linearly folded, as a result of compressive tectonic that fits in the regmatic pattern. Rio Groairas' and Itatira's wrench faults form shearing couples in which the drag folds' climax are thrusting faults with axial plane dipping north. Uranium mineralization occurs into a phosphatic rock containing about 80% of collophane - 'collophanite - in association chiefly with marbles or feldsphatic rocks and gneisses. The ore (collophanite) occurs mainly as a stockwork, and it may be massive, (into big joints) or disseminated (impregnating the host rocks). Dark ore appears only in brecciated zones; it is richer in uranium content, but poorer in phosphorous. The highest grade ore is in a very fractured zone, associated to marbles. Supergene enrichment took place in this area. Underground works show that mineralization is deeper toward east. No uranium mineral was identified yet. Itataia's deposit is a very peculiar one, because of the high grade uranium-phosphorous association. That's why it's difficult to establish a genetic model. However, there exist several genetic hypothesis, some of which in the same line of thought. (Author) [pt

Study in pilot plant of the Itataia phosphoro-uraniferous ore - CE (Brazil)

International Nuclear Information System (INIS)

Reis Junior, J.B.; Aquino, J.A. de; Oliveira Luz, I.L. de.

1987-01-01

Pilot plant data have been obtained for the physical treatment studies of the Itataia, phosphoro-uraniferous ore body located in the state of Ceara-Brazil. Due to the presence of the silic-carbonated gangue, which turns the ore complex, the pilot plant operation comprised 1200 hours. From the results obtained, it was possible to stablish a basic flowsheet for the concentration process. Such process includes a grinding step followed by a cyclone disliming (d 50 =10μm). The cyclone underflow feeds the flotation step. The conventional flotation process, which envolves the direct phosphate flotation followed by cleaning steps, was not efficient due to the presence of the carbonated gangue. In fact, the presence of silicates and carbonates in the gangue required that the flotation would be carried out in two steps. The silicated gangue is eliminated in the first flotation and a phosphate concentrate with significant amount of carbonates is obtained. This concentrate is fed to the second flotation step, termed reverse flotation, where the calcite is floated and the apatite is depressed. (Author) [pt

Study in pilot plant of the Itataia phosphoro-uraniferous ore (CE,Brazil)

International Nuclear Information System (INIS)

Reis Junior, J.B.; Aquino, J.A. de; Oliveira Luz, I.L. de

1985-01-01

Pilot plant data have been obtained for the physical treatment studies of the Itataia, phosphoro-uraniferous ore body located in the state of Ceara-Brazil. Due to the presence of the silic-carbonated gangue, which turns the ore complex, the pilot plant operation comprised 1200 hours. From the results obtained, it was possible to establish a basic flowsheet for the concentration process. Such process includes a grinding step (-65) followed by a cyclone disliming (d50 = 10μ). The cyclone underflow feeds the flotation step. The conventional flotation process, which envolves the direct phosphate flotation followed by cleaning steps, was not efficient due to the presence of the carbonated gangue. In fact, the presence of silicates and carbonates in the gangue required that the flotation would be carried out in two steps. The silicated gangue is eliminated in the first flotation and a phosphate concentrate with significant amount of carbonates is obtained. This concentrate is fed to the second flotation step, termed reverse flotation, where the calcite is floated and the apatite is depressed. (Author) [pt

Une Cyathura cavernicole nouvelle de Sarawak – Kalimantan du Nord (Isopoda, Anthuridae)

NARCIS (Netherlands)

Andreev, Stoitze

1982-01-01

A l’occasion d’une expédition spéléologique effectuée en 1978 à Sarawak et organisée par la Royal Geographical Society, le biospéléologue anglais Dr. Ph. Chapman a recueilli quelques exemplaires d’un Isopode des eaux douces souterraines, appartenant à une nouvelle espèce du genre Cyathura. La

Petrographic and mineralogical features of the uraniferous pink granites in the north eastern desert of egypt

International Nuclear Information System (INIS)

Atawiya, M.Y.; Salman, A.B.; El-Bayyomi, R.M.

1998-01-01

The present work is concerned with the petrological, mineralogical and geochemical studies of some uranium bearing younger granites in the north eastern desert of egypt particularly Gebel Gattar area. The area around Gebel Gattar comprises the following rock units (starting from the oldest): meta volcanic, diorite-grano-diorite complex- Dokhan volcanics- Hammamat sediments, younger granites and dykes. The most significant structural features are represented by NNE-ENE dominantly trending faults and joints. Petrographicaly, the pink granites are divided into normal and mineralized (uraniferous) granites. Normal granites are classified into three types; a) leucocratic perthitic granite, b) hornblende- biotite perthitic granite and c) two feldspars perthitic granite. Mineralized granites are sheared, deformed, pinkish brown in colour and strongly altered. A remarkable secondary uranium mineralization has been recorded along fault and fracture zones

Nouvelles et activités | Page 6 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

Jean Lebel, président du CRDI, et Andrew Campbell, premier dirigeant de l'. CRDI. NOUVELLES ACTIVITÉS. Le CDRI renouvelle son partenariat avec ACIAR en matière de sécurité alimentaire. Le CRDI et le Australian Centre for International Agricultural Research, ont conclu un accord en... Vous voulez en savoir plus Le ...

An overview of the regional, geological and structural setting of the uraniferous granites in the Damara Orogen, Namibia

International Nuclear Information System (INIS)

Brynard, H.J.; Andreoli, M.A.G.

1988-01-01

Uranium-bearing granites, comprising both potentially economic deposits and source rocks for uranium deposits in duricrustal and sedimentary sequences, occur in the Damara Orogen of Namibia. The economically important uraniferous granites are mainly confined to the Central Zone, delimited by the Omaruru and Okahandja lineaments, which demarcate the boundary between two markedly different magnetic and hence depositional and/or tectonic regimes. Various models to explain the origin and evolution of the uranium-enriched granites have been proposed to date, none of which are found to explain the observed petrological phenomena adequately. The paper critically reviews the existing literature on the origin of the granites and some criteria for exploration are discussed. (author). 24 refs, 6 figs, 2 tabs

Remedial Action Plan for stabilization of the inactive uraniferous lignite processing sites at Belfield and Bowman, North Dakota

International Nuclear Information System (INIS)

1990-12-01

This remedial action plan (RAP) has been developed to serve a threefold purpose. It presents the series of activities that are proposed by the US Department of Energy (DOE) to accomplish long-term stabilization and control of radioactive materials at the inactive uraniferous lignite processing sites at Belfield and near Bowman (at the former Griffin town site), North Dakota. It provides a characterization of the present conditions of the sites. It also serves to document the concurrence of the state of North Dakota and the US Nuclear Regulatory Commission (NRC) in the remedial action. This agreement, upon execution by the DOE and the state of North Dakota and concurrence by the NRC, becomes Appendix B of the Cooperative Agreement

La « nouvelle modernité » urbaine.

Directory of Open Access Journals (Sweden)

Alexis Salanson

2003-01-01

Full Text Available Président du conseil scientifique de l'Institut « Pour la ville en mouvement » et professeur à l'Institut français d'urbanisme (Paris 8, François Ascher résume dans cet ouvrage les thèses qu'il a défendues tout au long de ses précédentes publications 1  : la société dans laquelle nous vivons s'éloigne irrémédiablement de ce qu'elle fut pendant la révolution industrielle pour basculer dans une « nouvelle modernité ». Celle-ci conduit à repenser ...

NOUVELLES PERSPECTIVES EN ONCOLOGIE MEDICALE MEDECINE MOLECULAIRE ET SES PERSPECTIVES

Directory of Open Access Journals (Sweden)

Jean-Yves BLAY

2017-05-01

Full Text Available La médecine  moléculaire du cancer  s’appuie sur l’identification d’anomalies génomique de  l’ADN des cellules tumorales, permettant de guider le traitement des patients, en choisissant des inhibiteurs agissant sur les protéines mutées codées par les gènes mutés. Cependant, on assiste depuis 10 ans à l’émergence très rapide d’un nouveau corpus de connaissance décrivant les anomalies génomiques des cellules cancéreuses au sein des programmes internationaux  comme ICGC ou TCGA, permettant de déboucher sur de nouvelles classifications nosologiques mais démontrant aussi l’extrème  complexité et variabilité clonale des cellules cancéreuses  chez le patient humain. Il s’agit désormais d’utiliser ces données  nouvelles de manière  efficace. Ceci requiert la constitution de plateformes de diagnostic  explorant progressivement avec  une plus grande profondeur  les anomalies moléculaire de chaque patient individuel, et l’organisation de réunions de concertation pluridisciplinaires moléculaire permettant d’intégrer ces données au contexte  clinique et global du patient, et requérant la  contribution  croissante des bio-informaticiens. Ce  court article  fait le point  sur l’évolution de cette médecine moléculaire.

DESIGNOR: une méthode nouvelle d'aide à la conception des produits industriels

OpenAIRE

Choffray, Jean-Marie

1980-01-01

Cet article présente une méthode nouvelle, appelée DESIGNOR, d'aide à la décision marketing. Son objectif est d'accroître la créativité au cours du processus de développement d'un nouveau produit industriel et de réduire les risques d'échec commercial.

The Serra do Carambei Granite - PR and the uraniferous anomalism

International Nuclear Information System (INIS)

Pinto-Coelho, C.V.

1986-01-01

The Serra do Carambei Granite forms a pluton relatively homogeneous, covering about 33 km 2 , cropping out as an elongate retangular body trending NE-SW, being emplaced in the Cunhaporanga Granitoid Complex. Its characteristics indicates a kind of hololeucocratic granite, equigranular, medium to coarse-grained, consisting predominantly of microperthitic alkali-feldspar, quartz and a small amount of biotite (less than 1%), thus being classified as an alaskite. Chemical data allows a classification in the group of granite with high contents of silica (74-76% Wt. SiO 2 ), dominantly alkaline chemism and hypersolvus character, derived from a parental magma under saturated in water with distinguished features of granitoids from the magnetite series and types I and A granites. The pluton shows important chemical variations due to weathering processes. However detailed chemical studies reveal the presence of anomalous concentrations of trace elements such as U, Sn, Nb, Y, Zr, the Serra do Carambei Granite lacks economically important mineralizations because of the absence of well-developed tardi/pos-magmatic processes that could concentrate them. The SW side of the granite is cut by leucocratic rhyolite dykes that show some radiometric anomalies. These rocks, which are highly diferentiated, were emplaced contemporaneously to the Serra do Carambei Granite. Although petrographic and chronological similarities are found between the uraniferous alaskite of Roessing (Namibia) and the Serra do Carambei Granite anyhow it was not possible to establish any lateral continuity with the uranifeous Pan-African Province. (Author) [pt

An interpretation of the aeromagnetic data covering portion of the Damara orogenic belt, with special reference to the occurrence of uraniferous granite

International Nuclear Information System (INIS)

Corner, B.

1982-12-01

This thesis comprises primarily palaeomagnetic studies within the Damara orogenic belt of South West Africa (Namibia), as well as an interpretation of the regional structure, utilizing published aeromagnetic data. The prime objectives of the study were to aid uranium exploration programmes in this area by establishing any possible magnetic relationships associated with the uraniferous granites in the area, and to interpret regional structure from the aeromagnetic data. Cursory interpretation of the airborne radiometric data is also undertaken. Gravity traverses, conducted across three dome structures with which uranium mineralisation is intimately associated, are interpreted in order to determine the origin of these structures

Origin of uraniferous phosphate beds in Wilkins Peak member of Green River Formation, Wyoming

International Nuclear Information System (INIS)

Mott, L.V.; Drever, J.I.

1983-01-01

The distribution of uranium and phosphorus was studied in four drill cores from the Wilkins Peak Member of the Green River Formation in Wyoming. Of the studied occurrences of anomalously high uranium concentrations, 13% were associated with localized organic matter, and the remainder were associated with stratiform phosphate-rich beds. The uranium probably substitutes for calcium in apatite in these beds. It is proposed that the apatite forms by replacement of calcite during times of flooding of the normally highly saline lake. The flood waters bring in phosphorus and cause a decrease in both pH and ratio of bicarbonate to phosphate, which favors the replacement. Uranium is incorporated in the apatite as the apatite forms or soon after. No special source, other than weathering of volcanic ash, is required for the phosphorus or the uranium. The uraniferous phosphatic beds do not appear to have any economic potential at the present time. Misleadingly high concentrations of both uranium and phosphorus are observed in outcrop samples as a result of selective leaching of other components

Description d’une espèce nouvelle du genre Ectatorhinus (Coleoptera: fam. Curculionidae)

NARCIS (Netherlands)

Roelofs, W.

1890-01-01

Monsieur Neervoort van de Poll ayant reçu récemment avec d’autres insectes une nouvelle espèce d’ Ectatorhinus, capturée dans l’intérieur de Bedagei (Deli, Sumatra orient.) par M. J. Z. Kannegieter, m’a invité de la décrire, ce que je fais avec d’autant plus de plaisir que j’avais décrit dans le

LE SENTIMENT DE LA NATURE DANS LA NOUVELLE HELOISE DE ROUSSEAU

OpenAIRE

YÖNTEN, Yrd.Doç.Dr.Uğur

2002-01-01

Yrd.Doç.Dr.Uğur YÖNTEN D.Ü.Eğitim Fakültesi Fransız Dili Eğitimi A.B.D Bu çalışmamızda Jean-Jacques Rousseau'nun Julie ou La Nouvelle Héloïse (Julie Ya da Yeni Héloïse) adlı romanında "doğa tutkusunu" incelemeye çalıştık. Romandaki doğa yansımalarını ele almadan önce yazardaki bu duygunun nasıl ve ne zam...

Application of resistivity measurements to research on structural elements in the Nord-Limousin (France) uraniferous basin (1960)

International Nuclear Information System (INIS)

Sarcia, J.A.; Bonnet, J.; Combe, R.

1960-01-01

The authors discuss the difficulties encountered in the exploration of a typical deposit in the Nord-Limousin, using the resistivity measurement method. In the zone in question the over-thrust was very variable and difficult to predict. The uraniferous deposits had two types of aspect, the passage from one to the other being often very sudden: long thin veins without gangue; short and thick lens-shape deposits which were strongly contaminated by clay towards their edges. After several unsatisfactory attempts, the device known as the 'rectangular map' was adopted and gave an acceptable structural representation rapidly and cheaply. For the placing of the probes however, methods are required which are more refined and sensitive. It is in any case useless to expect to obtain a satisfactory representation and a sufficient accuracy using a single technique; especially in the region under consideration. (author) [fr

Experiments on geochemical prospecting for uranium in arid country; Essais de prospection geochimique de l'uranium en pays aride

Energy Technology Data Exchange (ETDEWEB)

Grimbert, A; Obellianne, J M [Commissariat a l' Energie Atomique, Centre d' Etudes Nucleaires de Fontenay-aux-Roses, 92 (France)

1962-07-01

The necessity for preliminary inquiries before applying routine geochemical prospecting techniques to the exploration of a new region is shown. Under conditions presumed to be unfavorable for geochemical prospecting as found in Nigeria along the banks of the Air, a preliminary examination showed that sampling of the stabilized superficial deposits at a depth of 15 cm made it possible to detect the presence of U-containing mineralizations hidden under about 20 meters of sterile sandy deposits. To confirm this result, a boring located on a U-containing geochemical anomaly in a paleosol, encountered a mineralized formation at a depth of 28 meters. (authors) [French] Les auteurs montrent la necessite des enquetes preliminaires avant toute application en routine des techniques geochimiques de prospection, lorsque l'on aborde une region nouvelle. Dans les conditions, a priori defavorables pour la prospection geochimique, que l'on trouve au Niger, en bordure de l'Air, une enquete preliminaire a etabli que l'echantillonnage des depots superficiels stabilises, a 15 centimetres de profondeur, permettait de deceler la presence de mineralisations uraniferes cachees sous une vingtaine de metres de sediments greseux steriles. Pour verifier ce resultat, un sondage implante sur une anomalie geochimique uranifere au sein d'un paleosol, a rencontre une formation mineralisee a 28 metres de profondeur. (auteurs)

A note on fluid inclusion study of quartz from uraniferous migmatites from Sirsoti area, Sonbhadra district, Uttar Pradesh, India

International Nuclear Information System (INIS)

Ramana Murthy, K.V.; Shobhita, K.; Gorikhan, R.A.; Bhattacharya, A.K.

1993-01-01

Fluid inclusion study has been carried out on quartz from uraniferous migmatitic rocks of Sirsoti area of Sonbhadra District, Uttar Pradesh. The fluid inclusions in quartz are of two types viz. (i) H 2 O liquid + vapour and (ii) H 2 O liquid + CO 2 liquid + CO 2 gas. Homogenization temperatures of H 2 O liquid + vapour type inclusions indicate that the temperature of formation varied between 150-350degC. Ice melting temperatures indicate that the hydrothermal solutions were CO 2 -bearing with a salinity of 6-8% NaCl. A common range of homogenization temperature for both liquid-rich as well as vapour-rich inclusions provides evidence for the boiling of the ore fluids. (author). 5 refs., 7 figs

Le méga-fichier TES dans une nouvelle architecture de surveillance

OpenAIRE

Vitalis, André

2017-01-01

La récente création du méga-fichier biométrique TES de tous les Français, répond, même s’il n’est pas mis en avant, à un souci sécuritaire. Si l’on veut véritablement comprendre les raisons et la portée de cette création, il faut la replacer dans la nouvelle architecture de surveillance en cours de construction depuis plus d’une décennie.

Emanation of radon-222 in uraniferous phosphorite from Pernambuco, Brazil; Emanação de radônio-222 em fosforito uranífero de Pernambuco

Energy Technology Data Exchange (ETDEWEB)

Santos, M.L.O.; França, E.J.; Amaral, D.S.; Silva, K.E.M.; Hazin, C.A.; Farias, E.E.G., E-mail: emersonemiliano@yahoo.com.br [Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE/CNEN-PE), Recife, PE (Brazil)

2017-07-01

The concentration of radon-222 activity available for transport to the surface through the pore space can be defined as radon emanation. From the decay of radium-226, whose half-life is 1850 years, it is associated with the development of neoplasia, such as lung cancer. In the Metropolitan Region of Recife, sedimentary rocks known as phosphorites have been known since 1959, so, from the radiometric characterization of the Paulista and Igarassu Municipality, in Pernambuco, emanation tests were carried out, aiming to determine the emanation power of radon in samples of uraniferous phosphorite from the Recife Metropolitan Region. Initially, 6 independent samples of phosphorites with activity concentration of {sup 226}Ra> 400 Bq kg{sup -1} were comminuted. Portions of 5g were conditioned in a radon chamber with 500 mL volume for measurements. The linear fit of the model converged after 200 interactions with selection of the best fit by the Chi-Square test, through the Origin® 8.0 program. After analysis of the samples, radon emanation power was estimated in the range of 7% to 15%, with a mean value of 10.8%. The methodology used to determine the emanation parameters in samples of uraniferous phosphorite was adequate, observing an inversely proportional relation between the concentration of the radium-226 and the emanation power.

LHC 2008 lectures "Une nouvelle vision du monde"

CERN Multimedia

2008-01-01

The history of the science of the Universe and the science of matter have been marked by a small number of "revolutions" that have turned our understanding of the infinitesimally large and the infinitesimally small on its head. New ways of looking at the world have come about sometimes through conceptual advances and sometimes through innovations in scientific instrumentation. How do things stand at the beginning of the 21st century? Will today’s large-scale machine projects like the LHC and gravitational wave detectors pave the way for a new scientific revolution? Thursday, 15 May 2008 at 8.00 p.m. Une nouvelle vision du monde Jean-Pierre Luminet, Research Director at the CNRS The Globe, first floor No specialist knowledge required. Entrance free. To reserve call + 41 (0) 22 767 76 76 http://www.cern.ch/globe

U-Pb ages of uraniferous opals and implications for the history of beryllium, fluorine, and uranium mineralization at Spor Mountain, Utah

Science.gov (United States)

Ludwig, K. R.; Lindsey, D.A.; Zielinski, R.A.; Simmons, K.R.

1980-01-01

The U-Pb isotope systematics of uraniferous opals from Spor Mountain, Utah, were investigated to determine the suitability of such material for geochronologic purposes, and to estimate the timing of uranium and associated beryllium and fluorine mineralization. The results indicate that uraniferous opals can approximate a closed system for uranium and uranium daughters, so that dating samples as young as ???1 m.y. should be possible. In addition, the expected lack of initial 230Th and 231Pa in opals permits valuable information on the initial 234U/238U to be obtained on suitable samples of ???10 m.y. age. The oldest 207Pb/235U apparent age observed, 20.8 ?? 1 m.y., was that of the opal-fluorite core of a nodule from a beryllium deposit in the Spor Mountain Formation. This age is indistinguishable from that of fission-track and K-Ar ages from the host rhyolite, and links the mineralization to the first episode of alkali rhyolite magmatism and related hydrothermal activity at Spor Mountain. Successively younger ages of 13 m.y. and 8-9 m.y. on concentric outer zones of the same nodule indicate that opal formed either episodically or continuously for over 10 m.y. Several samples of both fracture-filling and massive-nodule opal associated with beryllium deposits gave 207Pb/235U apparent ages of 13-16 m.y., which may reflect a restricted period of mineralization or perhaps an averaging of 21- and <13-m.y. periods of opal growth. Several samples of fracture-filling opal in volcanic rocks as young as 6 m.y. gave 207Pb/235U ages of 3.4-4.8 m.y. These ages may reflect hot-spring activity after the last major eruption of alkali rhyolite. ?? 1980.

Living on the mall : patterning and place making in the case study of Nouvelle

Energy Technology Data Exchange (ETDEWEB)

Gillies-Smith, S.; Ring, H. [Martha Schwartz, Inc., Cambridge, MA (United States)

2007-07-01

One of the largest habitable green roofs in the New England area was designed by Martha Schwartz Inc. The green roof spans 1.5 acres of mall rooftop that will be accessible by two connected condominium towers. A condominium complex associated with the expansion of the Natick Mall entitled Nouvelle, offers a new type of housing, in which a private, residential apartment complex adjoins a suburban, upscale indoor shopping mall. There are many new opportunities to use the expansive area of the mall complex roof to function as a productive, multi-use, shared private park. As an art-based landscape architectural practice, the office has adapted bold and graphic qualities as a model for its green roof design. The Nouvelle green roof offers dynamic circulation, enjoyable social space and recreation, intersecting a continuous coverage of patterned sedum and river stone that spans an entire roofscape. The green roof demonstrates an innovative combination of intensive and extensive plantings that create a system of legible and visually pleasing patterning from above. This case study addressed these innovations and implementation challenges within the context of mall architecture and green roof technologies. In addition, it also identified the social uses of roof spaces, and the aesthetics and sustainability of patterning in intensive and extensive planting design.

Preliminary results on the petrology and fluid inclusions of the Rossing uraniferous alaskites

International Nuclear Information System (INIS)

Cuney, M.

1980-01-01

Petrography, radioactivity distribution and fluid inclusions have been studied in three samples of the Rossing alaskites from the S.H. anomaly outside of the Rossing deposit. After the crystallization of the alaskitic magma which involved oligoclase, biotite, orthoclase and quartz, a deuteric alteration produced a quartz, microcline, albite, muscovite, calcite plus minus chlorite mineral association similar to those observed in several French uraniferous granites. Uranium redistribution occurred during this alteration. From fluid inclusions data, the pressure at the time of the intrusion is estimated to have been at least 6kbar for a temperature of 625 degrees Celsius. Reaction of the magma with the marbles of the Rossing formation led to the boiling of the magma by an increase in the CO 2 partial pressure as well as to its crystallization. Immiscibility between a dense saline (more than 30 per cent NaCl) and CO 2 -rich fluid is proposed to have occurred simultaneously or after the fluid oversaturation of the magma. Part of uraninite is formed at the magmatic stage, another part crystallized from the magmatic fluids in the biotite-rich selvages of the alaskites or in the uraninite-fluorite veins. Uraninite crystallization appears to be mainly controlled by the oxygen fugacity prevailing in the magma and in the surrounding rocks

La nouvelle vague in polarized neutron scattering

International Nuclear Information System (INIS)

Mezei, F.

1986-01-01

Polarized neutron research, like many other subjects in neutron scattering developed in the footsteps of Cliff Shull. The classical polarized neutron technique he pioneered was generalized around 1970 to vectorial beam polarizations and this opened up the way to a ''nouvelle vague'' of neutron scattering experiments. In this paper I will first reexamine the old controversy on the question whether the nature of the neutron magnetic moment is that of a microscopic dipole or of an Amperian current loop. The problem is not only of historical interest, but also of relevance to modern applications. This will be followed by a review of the fundamentals on spin coherence effects in neutron beams and scattering, which are the basis of vectorial beam polarization work. As an example of practical importance, paramagnetic scattering will be discussed. The paper concludes with some examples of applications of the vector polarization techniques, such as study of ferromagnetic domains by neutron beam depolarization and Neutron Spin Echo high resolution inelastic spectroscopy. The sample results presented demonstrate the new opportunities this novel approach opened up in neutrons scattering research. (orig.)

Tratamento de fobia específica por dessensibilização e reprocessamento por meio dos movimentos oculares

OpenAIRE

Lopes, Catarina de Castro; Barbosa, Maria Raquel; Carvalho, Sónia Cortinhas

2013-01-01

Resumo: A fobia específica é caracterizada pela presença de um medo persistente e recorrente que é excessivo e irracional a um objeto ou situação específica que desencadeia uma forte reação de ansiedade. Diversos estudos têm sido realizados com intuito de avaliar a eficácia da dessensibilização e reprocessamento através dos movimentos oculares (EMDR), e tem sido comprovado que é um método bem-sucedido para tratamento de fobia específica, ansiedade, depressão, traumas e queixas somáticas. O ca...

La banque de la Nouvelle-Calédonie. Existence éphémère, expérience oubliée (1874-1877)

OpenAIRE

Buttet, Catherine

2009-01-01

La Nouvelle-Calédonie, colonie pénale peu peuplée, était en 1870 tributaire des commerçants et du Trésor public pour l'ensemble des opérations bancaires. Née d'une société de colonisation d'initiative privée, la Banque de la Nouvelle-Calédonie fut une expérience distincte des anciennes banques coloniales et dont le nouveau cadre statutaire servit ensuite à la Banque d'Indochine. La banque reçut l'aval du gouvernement sous la forme d'une autorisation puis d'un privilège. Rapidement, la banque ...

Report of the technic visit made in Fegueira uraniferous bed, Brasil between 21 and 24 of may in 1985

International Nuclear Information System (INIS)

Pirelli, H.

1985-01-01

The technical visit to the deposit uraniferous of Figueira allowed to visualize different aspects stratigraphic , environmental and structurals.The geological cut across the highway BR-376, it understands practically the whole succession e stratigraphic of the Gondwana of the basin of the Parana, as also sequences of the Pre cambric and of the Devonian one Inferior.- The formations observed during this tour, they are correlation with our formations Cerrezuelo, Native of Cordoba, Three Islands, Dead Friar, Mangrullo, Step Aguiar, Yaguari and Tacuarembo.- The deposit is in the formation- Nice Rio (Three Islands), Member I Triumph, of age Permian Low As(according to) them the study carried out definite well units are demonstrated; This geological model is propitious for the accumulation of uranium due to: - Porous sandstones - carbonaceous sediments.The interaction of these two types of sediments provide in an environment with good

La nouvelle bourgeoisie islamique. Le modèle turc, de Dilek Yankaya

OpenAIRE

Lelandais, Gülçin Erdi

2016-01-01

De nombreux travaux sur la Turquie contemporaine ont été réalisés ces dernières années en France. La plus grande partie d’entre eux se focalise sur le champ politique et ses évolutions, les minorités ethniques — notamment les Kurdes –, et sur des mobilisations sociales, politiques et environnementales comme la mobilisation autour du parc Gezi. Le livre de Dilek Yankaya ouvre un nouveau champ d’analyse avec sa recherche, pionnière en son genre en France, qui étudie l’émergence d’une nouvelle é...

Fobia específica: um estudo transversal com 103 pacientes tratados em ambulatório

OpenAIRE

Terra,Mauro Barbosa; Garcez,Joana Presser; Noll,Betina

2007-01-01

OBJETIVOS: Este estudo tem por objetivo investigar a presença de fobia específica (FE) entre pacientes atendidos em um ambulatório de psiquiatria. MÉTODOS: Foi realizado um estudo transversal, no qual foi aplicado o SCID-I em 103 pacientes, para se examinar a ocorrência de fobia específica. Os dados foram analisados por meio de medidas descritivas e mediante os testes de independência baseados na estatística qui-quadrado de Pearson ou no teste exato de Fisher. RESULTADOS: Foi verificada FE em...

Ore mineragraphy of uraniferous polymetallic sulphides at Juba, Chhattisgarh basin, Raipur district, Central India

International Nuclear Information System (INIS)

Jain, S.K.; Sinha, D.K.; Verma, S.C.; Singh, Rajendra

1998-01-01

Polymetallic sulphide mineralization associated with uranium, has been located in the subfeldspathic arenite of Rehatikhol Formation of Chhattisgarh Supergroup near Juba (21 o 20'55 N : 83 o 15'43 E ) and Banjhapali (21 o 20'16 N : 83 o 14'44 E ) villages of Raipur district, Madhya Pradesh. The present paper describes ore mineragraphy and petrographic details of ore and the host rock. Ore microscopic study carried out on 82 rock samples has revealed fracture and intergranular space filled epigenetic mineralisation of uraninite/pitchblende, coffinite (1), pyrite, galena and pyrrhotite with traces of, bornite, luzonite, chalcopyrite, covellite, argentite, sternburgite and argentopyrite, besides diagenetically developed pyrite. Silification (chert), argillitisation and minor propylitisation represent the wall rock alterations. Coffinite (II) has formed due to reaction of uraninite/pitchblende and silica. Textural studies indicate, two stages of epigenetic mineralisation. (a) Introduction of sulphides of Fe-Pb-Cu-As and Ag and related potash metasomatism and (b) infiltration of siliceous material with pyrite, pitchblende, and subsequent coffinite. Coffinite (I) is deposited on porous pyrite is dusted with galena. Supergene processes have also formed minerals like bornite, covellite, galena etc. Thus the ore mineragraphic studies indicate epigenetic hydrothermal type uraniferous polymetallic sulphide mineralisation in the Juba area of Raipur district, Madhya Pradesh. (author)

The Function of the Medieval in Jean-Jacques Rousseau's Nouvelle Heloise : A Rereading of the Abelard and Heloise Motif

NARCIS (Netherlands)

Montoya, Alicia C.

2010-01-01

Jean-Jacques Rousseau's critical rewriting in his Nouvelle H,lo

Results of a paleomagnetic survey undertaken in the Damara mobile belt, South West Africa, with special reference to the magnetisation of the uraniferous pegmatitic granites

International Nuclear Information System (INIS)

Corner, B.; Henthorn, D.I.

1978-10-01

A project study, undertaken by the Geology Division of the AEB, on the correlation between airborne magnetic and radiometric data covering a portion of the Damara Mobile Belt in South West Africa, has revealed that all the known occurrences of uranium in late- to post-tectonic leucogranite (alaskite) of the Damara orogeny are associated with negative geomagnetic anomalies. Although the uranium occurrences themselves do not display marked geomagnetic anomalies, their immediate geological environment is characterised by the negative anomalies, which are semi-regional in extent. To investigate the origin of these anomalies, the Atomic Energy Board and the Geological Survey of South Africa undertook a palaeomagnetic study of the area. Oriented cores were taken from 31 sites in the mobile belt, 18 of which were selected within the negative magnetic zones, mostly in close association with known uraniferous alaskitic granites. Palaeomagnetic evidence suggests that the negative geomagnetic anomalies are associated with a remanent magnetisation, resulting from the Damara orogenic event, whose direction is removed from the earth's present field and which has affected rocks of the Nosib Group. Absence of this stable remanent direction in rocks stratigraphically overlying the Nosib Group accounts for the distinctive geomagnetic signature, in the form of negative anomalies, of the Nosib Group. It is this signature which can be used in airborne surveys to identify rocks of the Nosib Group outcropping, or of shallow suboutcrop, in anticlinal or dome-like structures. Since the uraniferous alaskites are mostly confined stratigraphically to the Nosib Group, the negative geomagnetic anomalies form an important prospecting criterion as they may be used to delineate target areas for further exploration in areas covered by sand, scree and duricrust deposits [af

Qui sera le nouvel Einstein ? Vers une nouvelle theorie de la gravitation

Science.gov (United States)

Bonnet-Bidaud, J. M.

1999-10-01

Un debat de plus d'un siecle a resurgi ces toutes dernieres annees avec une vigueur nouvelle. L'enjeu ? Mettre fin, ni plus ni moins, a l'une des contradictions les plus inouies de la physique fondamentale, en reconciliant mecanique quantique et relativite generale. En effet, a l'heure ou la gravitation semble enfin sur le point de fusionner avec les trois autres forces de la nature. il est certain que la relativite d'Einstein doit etre bientot remplacer par une autre theorie... Reste quye tous les physiciens sont loin de s'accorder sur la marche a suivree. Gravitation quantique, relativite d'echelle, supersymetrie, les candidates ne manquent pas.

L’hybridation interspécifique chez les champignons phytopathogènes à l’origine de nouvelles maladies

OpenAIRE

Frey, Pascal

2009-01-01

Mécanisme évolutif bien connu chez les plantes, l’hybridation interspécifique a été relativement peu étudiée dans certains groupes taxonomiques, comme les champignons. Chez les champignons phytopathogènes, l’hybridation entre une espèce indigène et une espèce exotique peut pourtant conduire à l’émergence de nouvelles maladies des plantes.

The Subgenus Stegomyia of Aedes in the Afrotropical Region. 1. The Africanus Group of Species (Diptera: Culicidae) (Contributions of the American Entomological Institute. Volume 26, Number 1, 1990)

Science.gov (United States)

1990-01-01

BANGOURA and A. LORAND. 1979. Isolements d’arbovirus au Senegal oriental a partir de moustiques (1972-1977) et notes sur l’epidemiologie des virus...Dengue 2 au Senegal oriental: Une poussee epizootioque en milieu selvatique; isolements du virus a partir de moustiques et d’un singe et...neoafticanus une nouvelle espece de moustique capturee au Senegal Oriental (Diptera: Culicidae). Cah. O.R.S.T.O.M. Ser. Entomol. Med. Parasitol. 16

Crenicichla tigrina, Une nouvelle espèce de cichlidae (Pisces, Perciformes) du Rio Trombetas, Pará, Brésil

NARCIS (Netherlands)

Ploeg, Alex; Jégu, Michael; Ferreira, Efrem

1991-01-01

Une nouvelle espèce de Cichlidae, Crenicichla tigrina, est décrite et illustrée. La coloration sur le vivant et quelques remarques relatives à l’Pecologie de cette espèce sont présentée. Les relations de C. tigrina avec les autres espèces de Crenicichla à petites écailles et le mode de distribution

Entre Classicisme et Modernité : La Nouvelle Revue Française dans le champ littéraire de la Belle Epoque

NARCIS (Netherlands)

Koffeman-Bijman, M.N.

2003-01-01

The literary review La Nouvelle Revue Française enjoys an enormous prestige in France. In Entre Classicisme et Modernité, Maaike Koffeman explores the origins of this legend of French literary life by means of a historical, literary and sociological analysis of the first years of the review s

Karl Polanyi, la Nouvelle sociologie économique et les forces du marché

Directory of Open Access Journals (Sweden)

Ronan Le Velly

2008-12-01

Full Text Available Cet article montre en quoi plusieurs auteurs de la Nouvelle sociologie économique tendent à adopter un regard incomplet sur les forces du marché. Pour cela, l’auteur distingue deux notions d’encastrement renvoyant pour la première à un cadre méthodologique institutionnaliste et pour la seconde à l’observation du poids variable des forces du marché. Il établit qu’autant des sociologues classiques comme Weber ou Polanyi ont su coupler ces deux approches, autant plusieurs travaux majeurs de la Nouvelle sociologie économique, notamment ceux de Zelizer, de Fligstein et de Biggart, adoptent la première perspective mais ne traitent que de façon partielle de la seconde. L’auteur met particulièrement en cause les objets de recherche retenus par ces derniers auteurs, dès lors que sont systématiquement privilégiées des situations où les forces du marché sont tenues à l’écart.This article shows how many authors of the New Economic Sociology tend to adopt an incomplete view of market forces. The author distinguishes two notions of embeddedness, one related to the institutionalist theories and the second to the observation of the variable weight of market forces. It is established that classical sociologists such as Weber or Polanyi have joined these two approaches, while manyu works of the New sociological economy, for examle those of Zelizer, Fligstein or Biggart adopt the first perspective, but only treat the second partially. The author particularly questions the research objects chosen by these authors, since he considers that they generally refer to situations where market forces are held at bay.

La nouvelle donne de la santé globale : dynamiques et écueils

Directory of Open Access Journals (Sweden)

Marine Buissonnière

2012-04-01

Full Text Available Les quinze dernières années ont été marquées par l’avènement de nouveaux acteurs dans le champ de la santé globale et l’augmentation de l’aide au développement en faveur de la santé. Ces acteurs ont capté une partie importante des ressources privées et publiques supplémentaires disponibles et se sont imposés comme les pièces maîtresses de ce nouvel échiquier, aux dépens des institutions traditionnelles qui ont graduellement perdu leur prépondérance et ont vu leur leadership s’affaiblir. Les choix et politiques de santé ont peu à peu échappé à la seule autorité des institutions qui en avaient jusqu’alors le mandat et en assumaient la charge. Certains pans entiers de la santé sont désormais dominés par des financeurs privés, devenus de facto prescripteurs d’orientations de santé publique. Cette nouvelle donne pose des questions essentielles de gouvernance et de responsabilité. Qui décide des orientations ? Comment les décisions sont-elles prises ? Les pays destinataires de l’aide doivent encore trop souvent subir le manque de coordination des donateurs et l’absence d’alignement des agendas. Dans ce contexte, et en prenant acte de cette nouvelle réalité, quelques pistes mériteraient d’être explorées afin de garantir que les orientations en matière de santé globale reflètent au mieux la réalité des besoins et les aspirations des pays.

How the Nouvelle Vague Invented the DVD: Cinephilia, new waves and film culture in the age of digital dissemination

Directory of Open Access Journals (Sweden)

Malte Hagener

2014-01-01

Full Text Available Whereas the currently emerging configurations of audiovisualcy in the age of digital networks are often addressed in terms of absolute novelty and innovation, this article wishes to shift the focus slightly, articulating instead the new in terms of the old. This essay proposes the argument that it was within the Nouvelle Vague and the French film culture of the 1960s that the DVD was “invented”. Obviously, this is a contrafactual argument, but if we understand the DVD as a discursive construction articulating a specific perspective on film, then the DVD simulates and emulates some key features of 1960s cinephilia that emerged within the context of the new waves. On the other hand, the Nouvelle Vague is understood as a broad discursive movement encompassing all segments of the institution cinema rather than five auteur-directors — Truffaut, Godard, Chabrol, Rohmer and Rivette — and their respective films. By arguing for the continuing importance of film history and culture, this article wishes to underline the fact that technological as well as aesthetic transformations are central to our understanding of media culture.

Instrumentos específicos para avaliar a qualidade de vida em crianças e adolescentes com asma

OpenAIRE

Cristian Roncada; Rita Mattiello; Paulo M. Pitrez; Edgar E. Sarria

2013-01-01

OBJETIVO: Identificar e descrever os instrumentos específicos que avaliam a QVRS de crianças e adolescentes com asma. FONTES DOS DADOS: Realizamos buscas nas bases de dados PubMed, Ovid e LILACS utilizando várias combinações de descritores (MeSH terms), selecionando artigos originais sobre desenvolvimento de questionários específicos de QVRS, publicados em inglês, português ou espanhol, entre 1990 e 2012. SÍNTESE DOS DADOS: Foram identificados 15 instrumentos que preencheram os critérios de i...

Funcionamiento neurocognitivo global y específico en niños y adolescentes con infección VIH

OpenAIRE

Martos Nicio, Patricia

2013-01-01

Introducción: la enfermedad VIH y el SIDA pediátrico, presentan características específicas y diferentes a las del adulto. La infección VIH en los niños se produce en una etapa temprana afectando a varios sistemas en desarrollo, entre ellos, el sistema nervioso central (SNC). Es por ello que las manifestaciones neurológicas y alteraciones neurocognitivas asociadas a dicha infección, son frecuentes en ausencia de tratamiento específico. En los últimos años la introducción del Tratamiento AntiR...

The Mosquitoes of the Subgenus Culex in Southwestern Asia and Egypt (Diptera: Culicidae) (Contributions of the American Entomological Institute. Volume 24, Number 1, 1988)

Science.gov (United States)

1988-01-01

Pathol. Exot. 53: 531-542. 1968. Contribution a I’etude des moustiques du Maroc (Diptera, Culicidae) six especes nouvelles pour le pays. Cah. ORSTOM...quelques moustiques du Maroc. Arch. inst. Pasteur Maroc 2: 361-365. 1957. Sur Culex torrentium Martini. Ann. Parasitol. Hum. Comp. 32: 438-442...De Grandpre, A.D. and D. D’E. De Charmoy 1900(1901). Les moustiques : anatomie et biologie. Contribution a I’etude des Culicides et principalement

La incidencia de la pragmática en el francés para fines específicos

Directory of Open Access Journals (Sweden)

José Ruiz Moreno

2011-04-01

Full Text Available Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Las relaciones conceptuales y prácticas entre la pragmática y el francés para fines específicos, y por extensión entre ésta y cualquier lengua para fines específicos, son abundantes y dignas de resaltarse. Las características más relevantes, tanto lingüísticas como didácticas del francés para fines específicos, tienen que ver con dos componentes preeminentes que son los usuarios de la lengua y el acto comunicativo, dos componentes que son a su vez fundamentales para la pragmática en la medida en que ésta estudia el lenguaje en acción. Nuestros objetivos en este artículo son dos; en un primer momento, realizamos diversas consideraciones teóricas explicativas de la ciencia pragmática que puedan servimos para una mejor comprensión del francés para fines específicos; en segundo lugar, intentamos clarificar de qué manera la pragmática incide en los mecanismos de enseñanza del francés para fines específicos.

Riscos ocupacionais em UTI: proteção específica

Directory of Open Access Journals (Sweden)

Maria da Natividade Abreu da Costa

1989-12-01

Full Text Available Aponta os riscos ocupacionais que a equipe multiprofissional se expõe diariamente. Na tentativa de minimizar os riscos existentes são traçadas medidas de proteção especffica que se estendem desde a planta física ao preparo técnico dos funcionários. São utilizadas como variáveis o trinomio ambiente/paciente/equipe de enfermagem, relacionando assim os riscos e a proteção específica.

Le programme ARTEMIS : nouvel outil pour la datation radiocarbone AMS (Spectromètre de Masse par Accélérateur et nouvelles problématiques

Directory of Open Access Journals (Sweden)

Cyrille Billard

2012-04-01

Full Text Available La mise en route du nouvel équipement ARTEMIS (Accélérateur pour la Recherche en sciences de la Terre, Environnement, Muséologie, Implanté à Saclay à partir de 2004 ouvre de nouvelles perspectives scientifiques et conduit à de nouvelles procédures de soumission des échantillons destinés à une datation 14C. Le MCC dispose aujourd’hui de droits alloués aux services régionaux de l'archéologie, services du ministère de la Culture, confrontés à ce type de demandes (musées, monuments historiques. Il impose désormais une nouvelle démarche de programmation scientifique des datations, associant une analyse critique des demandes.Since 2004, the availability at Saclay of a new ARTEMIS installation (Accélérateur pour la Recherche en sciences de la Terre, Environnement, Muséologie has opened new scientific perspectives and led to new procedures for submitting samples for carbon-14 dating. The French Ministry of Culture has the possibility of using this tool for radiocarbon dating at the request of its regional archaeological services or other services, such as museums and the historic monuments administration. This use now implies a new approach to the scientific planning for dating problems, associated with a critical analysis of the requests.

Relation de service, rapport social de service : Quelle grille d’analyse ? Analysing service relationships and service-based social relationships. Debate with the editors of the Nouvelle Revue du Travail Relación de servicio, vínculo social de servicio: ¿qué modelo analítico? Debate con la redacción de la Nouvelle Revue du Travail

Directory of Open Access Journals (Sweden)

Guillaume Tiffon

2013-03-01

Full Text Available Dans un échange avec la Nouvelle Revue du Travail, Pascal Ughetto et Philippe Zarifian prolongent la controverse sur les grilles d’analyse des services, en discutant les pré-requis sur lesquels reposent leurs postures respectives. Ce débat fait suite à leurs contributions dans le dossier Controverses de ce numéro « Relation de service, rapport social de service. Quelle grille d’analyse ? »In a conversation with the Nouvelle Revue du Travail, Pascal Ughetto and Philippe Zarifian address the controversy about service-related analytical grids, by focusing on the preconditions underlying each grid’s particular orientation. The debate follows their contributions to the Controverses special section found in a special issue called “Analysing service relationships and service-based social relationships”En una conversación con la Nouvelle Revue du Travail, Pascal Ughetto y Philippe Zarifian prolongan la controversia sobre los modelos analíticos de los servicios, debatiendo sobre los prerrequisitos en los cuales se apoyan sus respectivas posturas. Ese debate ha surgido tras sus contribuciones al número especial Controverses de esta edición “Relación de servicio, vínculo social de servicio. ¿Qué modelo analítico ?

Revisión sistemática de intervenciones comunitarias sobre actividad física en grupos específicos.

OpenAIRE

Gladys Espinosa; John Duperly; Gustavo Alonso Cabrera; Olga Lucía Gómez

2009-01-01

Objetivo. Documentar el desarrollo de intervenciones comunitarias dirigidas a promocionar la actividad física en grupos específicos. Materiales y métodos.Se realizó una revisión sistemática de intervenciones comunitarias para promocionar la actividad física en grupos específicos. Se revisaron las experiencias publicadas en artículos científicos desde enero de 1990 en las bases Lilacs, PubMed, Scientific Electronic Library on Line (SciELO). Resultados. De 30 intervenciones identificadas en la ...

Une Nouvelle Orientation Psychophysique dans la Pédagogie Théâtrale Contemporaine

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Vezio Ruggieri

2015-09-01

Full Text Available Cet article a pour but de présenter comment les apports du modèle psychophysiologique bio-existentialiste élaboré par Vezio Ruggieri et ses collaborateurs peuvent jeter une lumière nouvelle sur les processus sous-jacents le jeu de l’acteur tels que la présence scénique, le processus d’identification avec un personnage et le complexe mécanisme de la prosodie. Cet encadrement théorique, qui voit le rapport corps-esprit dans une relation circulaire, éclairera le lecteur sur les bases physiologiques de la perception et de l’imagination ainsi que sur le rôle fondamental que la structure musculaire joue dans la construction de ces phénomènes.

Teorías subjetivas de profesionales de escuelas de lenguaje en chile sobre el trastorno específico del lenguaje

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Luise von Keyserlingk

2013-08-01

Full Text Available OBJETIVO: comprender y reconstruir las teorías subjetivas de profesionales de escuelas de lenguaje en Chile, sobre las causas y el tratamiento del trastorno específico del lenguaje. MÉTODO: se utilizó métodos cualitativos para recolectar datos en profundidad. Se realizó entrevistas individuales semi-estructuradas con una muestra de cuatro fonoaudiólogas (logopedas y cuatro educadoras diferenciales de cuatro escuelas de lenguaje. Se grabó y transcribió las entrevistas, las que fueron analizadas con el programa informático Atlas.ti 5.0. Los resultados del análisis relacional se sintetizaron en tres modelos. RESULTADOS: para las fonoaudiólogas y educadoras diferenciales las causas principales del trastorno específico del lenguaje son factores sociales, originados en la familia de los niños afectados. Con respeto a la superación de este trastorno las entrevistadas destacaron con alta importancia el apoyo familiar para un tratamiento eficaz. CONCLUSIONES: entre las explicaciones subjetivas de las profesionales entrevistadas y las explicaciones científicas acerca las causas del trastorno específico del lenguaje, existen diferencias. Mientras las entrevistadas hablan de causas sociales, los enfoques científicos explican este trastorno por causas biológicas. Esta diferencia debería ser investigada en estudios posteriores. Las fonoaudiólogas y educadoras diferenciales ven la familia del niño como una de las causas principales del trastorno específico del lenguaje y al mismo tiempo consideran el apoyo familiar como un requisito crucial en el tratamiento. En la opinión de los profesionales de las escuelas de lenguaje el trastorno específico del lenguaje es un trastorno superable, si escuela y familia trabajan en conjunto.

'Grenelle de l'environnement ' : peut-on se passer d'une nouvelle fiscalité écologique ?

OpenAIRE

Eloi Laurent; Jacques Le Cacheux

2007-01-01

Contrairement à ce qu'a affirmé Al Gore quand il a appris la nouvelle de son Prix Nobel de la paix, la lutte contre le changement climatique n'est pas avant tout une affaire morale, mais bien un enjeu politique, et plus précisément d'économie politique. C'est le problème des moyens, des instruments et des incitations que doit désormais poser et résoudre l'action publique, les travaux des lauréats du " Prix Nobel d'économie " pouvant d'ailleurs se révéler fort utiles dans cette optique pratiqu...

Environmental assessment of no remedial action at the inactive uraniferous lignite ashing sites at Belfield and Bowman, North Dakota

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-06-01

The Belfield and Bowman sites were not included on the original congressional list of processing sites to be designated by the Secretary of Energy. Instead, the sites were nominated for designation by the Dakota Resource Council in a letter to the DOE (September 7, 1979). In a letter to the DOE (September 12, 1979), the state of North Dakota said that it did not believe the sites would qualify as processing sites under the Uranium Mill Tailings Radiation Control Act (UMTRCA) because the activities at the sites involved only the ashing of uraniferous lignite coal and the ash was shipped out of state for actual processing. Nevertheless, on October 11, 1979, the state of North Dakota agreed to the designation of the sites because they met the spirit of the law (reduce public exposure to radiation resulting from past uranium operations). Therefore, these sites were designated by the Secretary of Energy for remedial action. Because of the relatively low health impacts determined for these sites, they were ranked as low priority and scheduled to be included in the final group of sites to be remediated.

Environmental assessment of no remedial action at the inactive uraniferous lignite ashing sites at Belfield and Bowman, North Dakota

International Nuclear Information System (INIS)

1997-06-01

The Belfield and Bowman sites were not included on the original congressional list of processing sites to be designated by the Secretary of Energy. Instead, the sites were nominated for designation by the Dakota Resource Council in a letter to the DOE (September 7, 1979). In a letter to the DOE (September 12, 1979), the state of North Dakota said that it did not believe the sites would qualify as processing sites under the Uranium Mill Tailings Radiation Control Act (UMTRCA) because the activities at the sites involved only the ashing of uraniferous lignite coal and the ash was shipped out of state for actual processing. Nevertheless, on October 11, 1979, the state of North Dakota agreed to the designation of the sites because they met the spirit of the law (reduce public exposure to radiation resulting from past uranium operations). Therefore, these sites were designated by the Secretary of Energy for remedial action. Because of the relatively low health impacts determined for these sites, they were ranked as low priority and scheduled to be included in the final group of sites to be remediated

Un littoral sableux en progradation : le lido entre Leucate et Port-la-Nouvelle (Aude, Golfe du Lion, France

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Jean-Pierre Larue

2009-11-01

Full Text Available L'étude multichronique de photographies aériennes révèle que le lido entre Leucate et Port-la-Nouvelle (Aude a progradé d'environ 15 % en largeur, entre 1952 et 2008. L'analyse sédimentologique permet de montrer que cette progradation exceptionnelle en période d'élévation du niveau marin est due à la présence de barres pré-littorales volumineuses et bien alimentées par la dérive littorale et le transport éolien effectué par les vents de terre. Cependant, du fait de la montée actuelle du niveau marin (2,5 à 3 mm/an et malgré la poursuite de l'accrétion, le lido subit des inondations de plus en plus fréquentes entre le cordon actuel et l'ancien cordon romain.A kinematic study of vertical aerial photos taken between 1952 and 2008 reveals that the Leucate-Port-la-Nouvelle lido (Aude has prograded of about 15 % in width. A sedimentological analysis allows us to explain this accretion caused by drift and wind which supply abundant nearshore bars. In spite of this progradation, frequent floodings, favoured by sea level rise (2.5 to 3 mm-1.year, occur between the present coastal bar and the Roman barrier.

Superficie Específica y Estado Vital de la Materia

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J. Hernando Ordoñez

1992-03-01

Full Text Available

Se propone reemplazar el término de materia viva por el de estado vital de la materia por considerarlo adecuado, pues la materia es la misma, lo que cambia es su estado. Se estudia la relación entre la superficie específica y el estado vital de la materia. Constante del estado vital y el valor crítico de la superficie específica. Qué es la fuerza de inducción vital? Diferenciación funcional de las células. Cómo regula la unidad biológica su superficie específica? La materia que piensa es el fenómeno más grandioso de la creación.

Sin entrar en disquisiciones sobre la naturaleza, manifestaciones y formas de la energía, me permito hacer unas a manera de divagaciones sobre los diferentes estados de la materia, que es una forma de la energía.

Estados de la materia

Sabemos que la mínima porción de la materia es el átomo, que tiene una composición compleja, que no es del caso estudiar. Los átomos pueden existir aislados y estar en lo que llamamos estado iónico. Si los átomos se juntan, forman moléculas, y su existencia constituye el estado molecular. Si las moléculas se juntan, forman complejos más grandes y tendremos las micelas, que constituyen el estado coloidal.

Hasta aquí nuestros conocimientos nos son familiares, triviales. Pero hay un estado más complejo, en el cual entra materia en estado iónico, molecular y coloidal entrelazados entre sí, con propiedades totalmente diferentes. La materia en este estado adquiere caracteres extraordinarios tales como el de crecer, reproducirse, independizarse de las leyes físicas, puede autorregular su composición química, autorregular sus manifestaciones físicas, reaccionar ante los estímulos más variados, puede llegar hasta alturas inconcebibles integrando ideas. A este estado fue al que llamé en publicación anterior (1 estado vital, concepto que fue corroborado más ‘tarde por J.R. Brown (2 cuando me coment

O inventário das curiosidades botânicas da Nouvelle France de Pierre-François-Xavier de Charlevoix (1744 The inventory of botanical curiosities in Pierre-François-Xavier de Charlevoix's Nouvelle France (1744

Directory of Open Access Journals (Sweden)

Michel Kobelinski

2013-03-01

Full Text Available Verifica a extensão dos aportes botânicos de Pierre-François-Xavier de Charlevoix em Histoire et description générale de la Nouvelle France em relação a trabalhos de pesquisadores anteriores, suas valorações das representações iconográficas e discursivas e aplicabilidade no projeto de colonização francesa. Investiga-se o que o levou a preterir o modelo taxionômico de Lineu e o que pretendia com seu catálogo de curiosidades botânicas. O desenlace de sua trajetória filosófico-religiosa permite compreender seu posicionamento no quadro de classificação da natureza, os sentidos das informações etnológicas, as formas de apropriação intelectual e os usos da iconografia botânica e do discurso como propaganda político-emotiva para incentivar a ocupação colonial.The article explores the botanical contributions of Pierre-François-Xavier de Charlevoix's book Histoire et description générale de la Nouvelle France vis-à-vis the contributions of previous researchers, his use of iconographic and discursive representations and its relevance to the project of French colonization. It investigates why he refused Linnaeus' taxonomic model and what he intended with his catalogue of botanical curiosities. The unfolding of his philosophical and religious trajectory allows to understand his stance regarding the classification of nature, the meanings of ethnological information, his forms of intellectual appropriation, and his use of discourse and botanical iconography as political and emotional propaganda to encourage colonial settlement.

Nouvelle procédure pour l'augmentation du temps d'usinage simulé en coupe orthogonale

OpenAIRE

Guediche , Mayssa; Mabrouki , Tarek; Donnet , Christophe; Bergheau , Jean-Michel; Hamdi , Hedi

2015-01-01

International audience; Cette étude présente une nouvelle méthodologie visant à augmenter le temps d'usinage simulé en coupe orthogonale .Le but est d'étudier ultérieurement l'évolution de l'usure des outils de coupe dans le cas de l'usinage de l'acier 42CD4. Un modèle lagrangien est donc développé sous le code de calcul ABAQUS simulant la formation du copeau. Une approche baptisée de « modélisation verticale » est développée dans le but d'augmenter le temps de coupe simulé tout en gardant un...

Nouvelle méthodologie de synthèse de molécules à potentiel diurétique

OpenAIRE

Ouellet, Simon

2007-01-01

[Synthèse combinatoire ]. Le présent mémoire propose l'élaboration d'une nouvelle méthodologie de synthèse de molécules ayant un potentiel diurétique, et ciblant plus particulièrement les cotransporteurs cations-chlorures, responsables du mouvement couplé des ions sodium et/ou potassium avec celui du chlorure dans plusieurs types de cellules dont celles des néphrons. La première partie est consacrée à une description de la chimie combinatoire, aux travaux antérieurs effectués dans notre la...

Le télé-achat : finalité ou usage par défaut des nouvelles convergences ?

OpenAIRE

Lenoir , Christophe

2000-01-01

HAL : hal-00558853; International audience; Le télé-achat relève-t-il d'une finalité ou d'un usage par défaut des nouvelles convergences ? A partir des questions de détermination technologique et d'indétermination des usages, cet article propose, au vu de l'évolution économique du secteur et de l'information économique véhiculée par ses agents, de s'interroger sur les conditions énonciatives de ces processus de communication et leurs conséquences sur le médium télévisuel.

Tratamiento farmacológico específico en la Enfermedad de Alzheimer

OpenAIRE

Simón Marrodán, Roberto

2016-01-01

La Enfermedad de Alzheimer es un proceso neurodegenerativo que conlleva un deterioro progresivo de la memoria y de otras funciones superiores. Es el tipo de demencia más común. En el 95% de los casos afecta a personas mayores de 65 años. Se ha realizado una revisión bibliográfica narrativa utilizando bases de datos, buscadores y páginas web, con el objetivo de conocer cuál es el tratamiento farmacológico específico en la Enfermedad de Alzheimer. Las palabras clave utiliza...

Tecnologie dell’informazione e nuovi processi di vittimizzazione / Nouvelles technologies et processus de victimisation / Information technologies and new processes of victimisation

Directory of Open Access Journals (Sweden)

Marotta Gemma

2012-08-01

Full Text Available New technologies, on the one hand, have produced undeniable positive effects, from the acceleration of cultural diffusion to the communication between "worlds" previously unknown; on the other hand, they have become now an instrument to commit new crimes and deviants acts.In the article we will discuss the processes of victimization related to specific offenses (digital identity theft, online paedopornography, cyberstalking and to new forms of addiction due to the new media. The aim is to highlight the dangers of the misuse or abuse of new technologies.S'il est vrai que les nouvelles technologies de communication ont produit des effets positifs indéniables, comme l'accélération de la diffusion culturelle et l'échange entre « mondes » jusque-là inconnus, elles n'en sont pas moins devenues un moyen de commettre des actes déviants et criminels nouveaux.Cet article expose les processus de victimisation liés à certains crimes (comme l'usurpation d'identité, la pédopornographie en ligne, le cyber-harcèlement, et de nouvelles formes de dépendance, afin de mettre en évidence les dangers d'un usage pervers ou délictueux des nouveaux médias.

Securite, dangerosite, biopolitique: trois versants d'une nouvelle pratique de pouvoir sur les individus

Directory of Open Access Journals (Sweden)

Jean-François Bert

2012-01-01

Full Text Available Le questionnement de Foucault sur la judiciarisation des sociétés contemporaines renvoie à plusieurs controverses qui, entre 1974 et 1976, ont spécifiquement concerné la question du vivant comme de son rapport au champ du droit et des institutions politiques. Ces polémiques se sont cristallisées autour d'affaires judiciaires retentissantes mais également autour d'un discours technique et politique qui donne une place nouvelle aux notions de dangerosité, de sécurité et à la question plus générale de la gestion du vivant. Trois discours qui, pour Foucault, sont révélateur d'un profond changement de société et de mode de gouvernement des individus.

Ansiedad social específica y generalizada: ¿variantes del mismo trastorno o categorías diferentes con características similares?

OpenAIRE

Ihab Zubeidat; Antonio Fernández-Parra; Juan Carlos Sierra; José María Salinas

2007-01-01

El objetivo de este estudio descriptivo transversal fue evaluar las diferencias y similitudes entre la ansiedad social específica y generalizada en una muestra de adolescentes españoles. Para ello, un total de 1.012 jóvenes fueron evaluados, en su entorno escolar, mediante una serie de pruebas que miden variables demográficas, ansiedad social, competencias psicosociales y distintos problemas clínicos. Dos grupos de ansiedad social (específica, n = 50; generalizada, n = 38) fuer...

Le décodage biologique. Diffusion d’une nouvelle médecine non-conventionnelle contre le cancer Biodecoding. Dissemination of a New Unconventional Therapy against Cancer

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Aline Sarradon-Eck

2011-05-01

Full Text Available De nouvelles médecines alternatives, regroupées sous l’appellation « décodage biologique », reposent sur une conception psychosomatique du cancer. Elles sont apparues en Europe dans les années 1990. Dans une perspective critique, l’article tente de comprendre la diffusion de ces nouvelles thérapies. S’inspirant du travail de D. Fassin sur les réseaux de l’ethnopsychiatrie, il analyse la construction d’une légitimation du décodage biologique et de ses praticiens, en décrivant les réseaux qui diffusent les théories et favorisent l’adoption de la pratique. L’article montre l’enracinement de ces nouvelles thérapies dans des représentations sociales et des modèles culturels de l’étiologie du cancer et du “faire face” à la maladie qui permettent ou renforcent l’adoption et l’appropriation de la pensée psychosomatique alternative.New alternative therapy called « bio-decoding » based on a psychosomatic perception of cancer appeared in the 1990s. Using a critical approach, the article aims to understand the therapy’s growth. Drawing on D. Fassin’s work about ethnopsychiatric networks, this paper analyses the construction of bio-decoding and bio-therapist legitimacy, by unravelling the networks which allow for theory dissemination and enable the practice’s growth. The article shows that these new therapies are deeply rooted in social and cultural models of cancer etiology and coping, which allow or reinforce approval and appropriation of alternative psychosomatic thought.

Applications of prospecting geochemical techniques to the search for and to the study of uranium deposits in metropolitan France; Applications des techniques geochimiques de prospection a la recherche et a l'etude des gites uraniferes en France metropolitaine

Energy Technology Data Exchange (ETDEWEB)

Grimbert, Arnold

1957-07-01

After having recalled facts which leaded the CEA to use new geochemical techniques for the prospecting of uranium deposits through sampling and analysis of soils and waters, the author describes the organisation and methods implemented for this prospecting activity: team composition for sampling and analysis, role of each engineer and technician in the prospecting stages (preliminary study, routine prospecting, result interpretation), sampling and analysis processes. He also reports campaigns of geochemical prospecting: study of the La Chapelle Largeau deposit (objectives, geological context, preliminary study, routine prospecting, study of geochemical anomalies), tactical research on Verneix indices (study of radioactivity anomaly discovered by radio-prospecting), strategical searches in a non prospected area in the South of Avallon. The author discusses the issues of efficiency and cost price of this geochemical prospecting technique in soils and in waters. Appendices present the equipment and operation modality for soil sampling, and for soil sample preparation, and principles, equipment and products for soil analysis and for water analysis [French] A la suite des resultats satisfaisants obtenus dans la recherche de methodes de dosage adaptees au cas de l'uranium, la Direction des Recherches Minieres du Commissariat a l'Energie atomique a decide, en decembre 1954, d'utiliser, conjointement avec les methodes classiques de prospection, les techniques geochimiques pour la recherche et l'etude des gites uraniferes. Ces applications pratiques ont ete confiees a une Section de Geochimie dont l'organisation, les moyens en personnel et en materiel, ainsi que les methodes de travail, font l'objet d'un expose detaille. Quelques exemples de prospection, en France metropolitaine, montrent la nature des problemes poses (etude d'un gisement connu, recherche tactique sur des indices, recherche strategique dans une region non prospectee), les methodes utilisees pour les

Literaire strategieën: de drie satellieten van La Nouvelle Revue Française (1910-1914

Directory of Open Access Journals (Sweden)

Maaike Koffeman

2000-12-01

Full Text Available La Nouvelle Revue Française, opgericht in 1908 door een groep schrijvers rond André Gide, is het belangrijkste Franse literaire maandblad van het interbellum geweest. In de jaren voorafgaand aan de Eerste Wereldoorlog is de reputatie van het tijdschrift nog relatief bescheiden, maar er is al wel een duidelijke progressie te constateren. Deze is niet alleen toe te schrijven aan de inhoudelijke kwaliteit van de bijdragen, maar vooral ook aan de manier waaorp de redactie het tijdschrift promoot. De oprichters bedienen zich van een 'mutimedia-strategie': zij ontwikkelen rond de NRF verschillende nevenactiviteiten om de naamsbekendheid van het tijdschrift te vergroten en zijn literatuuropvattingen onder een breder publiek te verspreiden. 

Environmental assessment of remedial action at the inactive uraniferous lignite ashing sites at Belfield and Bowman, North Dakota

International Nuclear Information System (INIS)

1993-09-01

The Uranium Mill Tailings Radiation Control Act (UMTRCA) of 1978 authorized the US Department of Energy (DOE) to perform remedial actions at Belfield and Bowman inactive lignite ashing sites in southwestern North Dakota to reduce the potential public health impacts from the residual radioactivity remaining at the sites. The US Environmental Protection Agency (EPA) promulgated standards (40 CFR 192) that contain measures to control the residual radioactive materials and other contaminated materials, and proposed standards to protect the groundwater from further degradation. Remedial action at the Belfield and Bowman sites must be performed in accordance with these standards and with the concurrence of the US Nuclear Regulatory Commission (NRC) and the state of North Dakota. The Belfield and Bowman designated sites were used by Union Carbide and Kerr-McGee, respectively, to process uraniferous lignite in the 1960s. Uranium-rich ash from rotary kiln processing of the lignite was loaded into rail cars and transported to uranium mills in Rifle, Colorado, and Ambrosia Lake, New Mexico, respectively. As a result of the ashing process, there is a total of 158,400 cubic yards (yd 3 ) [121,100 cubic meters (m 3 )] of radioactive ash-contaminated soils at the two sites. Windblown ash-contaminated soil covers an additional 21 acres (8.5 ha) around the site, which includes grazing land, wetlands, and a wooded habitat

Method of research and study of uranium deposits; Methode de recherches et d'etude des gites uraniferes

Energy Technology Data Exchange (ETDEWEB)

Lenoble, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1955-07-01

In a first part, the author gives a fast retrospective of the evaluations of the uranium deposits in the French Union. The author established a method of prospecting and studying, modifiable at all times following the experiences and the results, permitting to make the general inventory of uranium resources on the territory. The method is based on: 1 - the determination of geological guides in order to mark the most promising deposits, 2 - the definition of a methodology adapted to every steps of the research, 3 - the choice of the material adapted for each of the steps. This method, originally established for the prospecting in crystalline massifs, is adaptable to the prospecting of the sedimentary formations. (M.B.) [French] Dans une premiere partie, l'auteur donne une retrospective rapide des estimations des gites uraniferes dans l'Union Francaise. L'auteur a etabli une methode de prospection et d'etude, modifiable a tout instant suivant les experiences et les resultats, permettant de faire l'inventaire general des ressources en uranium du territoire. La methode est base sur: 1 - la determination de guides geologiques afin de reperer les gisements les plus prometteurs, 2 - la definition d'une methodologie adaptee a chaque stade de la recherche, 3 - le choix du materiel adapte pour chacun des stades. Cette methode, a l'origine etablie pour la prospection en massifs cristallins, est adaptable a la prospection des formations sedimentaires. (M.B.)

Radionuclide release from simulated waste material after biogeochemical leaching of uraniferous mineral samples

International Nuclear Information System (INIS)

Williamson, Aimee Lynn; Caron, François; Spiers, Graeme

2014-01-01

Biogeochemical mineral dissolution is a promising method for the released of metals in low-grade host mineralization that contain sulphidic minerals. The application of biogeochemical mineral dissolution to engineered leach heap piles in the Elliot Lake region may be considered as a promising passive technology for the economic recovery of low grade Uranium-bearing ores. In the current investigation, the decrease of radiological activity of uraniferous mineral material after biogeochemical mineral dissolution is quantified by gamma spectroscopy and compared to the results from digestion/ICP-MS analysis of the ore materials to determine if gamma spectroscopy is a simple, viable alternative quantification method for heavy nuclides. The potential release of Uranium (U) and Radium-226 ( 226 Ra) to the aqueous environment from samples that have been treated to represent various stages of leaching and passive closure processes are assessed. Dissolution of U from the solid phase has occurred during biogeochemical mineral dissolution in the presence of Acidithiobacillus ferrooxidans, with gamma spectroscopy indicating an 84% decrease in Uranium-235 ( 235 U) content, a value in accordance with the data obtained by dissolution chemistry. Gamma spectroscopy data indicate that only 30% of the 226 Ra was removed during the biogeochemical mineral dissolution. Chemical inhibition and passivation treatments of waste materials following the biogeochemical mineral dissolution offer greater protection against residual U and 226 Ra leaching. Pacified samples resist the release of 226 Ra contained in the mineral phase and may offer more protection to the aqueous environment for the long term, compared to untreated or inhibited residues, and should be taken into account for future decommissioning. - Highlights: • Gamma counting showed an 84% decrease in 235 U after biogeochemical mineral leaching. • Chemical digestion/ICP-MS analysis also showed an 84% decrease in total U. • Over

Superficie específica de una bentonita mediante la adsorción de azul de metileno

OpenAIRE

Pinzón Bello, Jorge Alejo

2010-01-01

Se estudió la determinación de la superficie específica de una bentonita colombiana, procedente del Valle del Cauca, mediante la adsorción de azul de metileno, a 298 K. Este método se comparó con el de la adsorción de nitrógeno a 77 K.

Detección de linfocitos T citotóxicos específicos anti-53 en pacientes con cáncer de mama

OpenAIRE

Álvarez Busto, Iñaki; Tres Sánchez, Alejandro; Mayordomo Cámara, José Ignacio

2009-01-01

El gen P53 es el más frecuentemente mutado en tumores humanos ( 50%). Su proteina producto, la proteina P53, se acumula cuando sufre una mutación. Esta circunstancia posibilita su presentación al sistema inmunológico y el desarrollo de una respuesta celular específica medida por linfocitos T CD8. En este trabajo por primera vez, ha sido posible desarrollar la existencia de una respuesta inmune celular específica "in vivo" en pacientes con cancer de mama. Las implicaciones de este hallazgo par...

La mosquée en Algérie.Figures nouvelles et pratiques reconstituées

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Abderrahmane Moussaoui

2012-07-01

Full Text Available La « globalisation » des discours de la mosquée casse les frontières érigées historiquement par les différentes écoles, et tend à réduire la fracture inaugurale entre sunnisme et chiisme. Aujourd’hui il y a un retour à la Salafiya qui ne reconnaît que les fondamentaux. Tout le reste est considéré comme de l’ordre de l’historique et donc non sacré et à ce titre susceptible d’être laissé de côté ou changé. La Salafiya continue cependant à être divisée entre djâmida et djihâdiya.Les pratiques au sein de la mosquée procèdent également par pluralisation où l’individu cherche à la fois à signaler son individualité mais aussi à s’inscrire dans des tendances plus globales. Les récits de vie de différents imams laisse transparaître une sorte de sécularisation interne de la mosquée et une plus grande latitude dans la ré interprétation de l’initial.Les changements sont perceptibles également au niveau des acteurs De nouvelles figures concurrencent celle classique de l’imam. Le prédicateur, sans être une figure tout à fait nouvelle, ni une invention récente, demeure une figure réinventée. Au Maghreb, on connaît l’imam, le mufti, le taleb, mais moins le dâ`îya que les chaînes de télévision à thématique religieuse ont fini par imposer.Ce sont toutes ces transformations qui se déroulent au cœur de l’institution la plus significative de l’Islam que tente d’examiner cette contribution.

El Trastorno Específico del Lenguaje: estado de la cuestión

OpenAIRE

Vernengo, Luciana

2011-01-01

Este trabajo ofrece una revisión sobre diversos estudios relativos al Trastorno Específico del Lenguaje (TEL). Dicha tema, es abordado desde diversas disciplinas de las cuales las más relevantes son la psicolingüística, la neurofisiología y la psicología. Desde la psicolingüística, se plantean dos grandes teorías sobre la causa del TEL. La primera, como consecuencia de alteraciones en el procesamiento del lenguaje; la segunda, lo concibe como un trastorno modular del lenguaje.

SEMINAIRE DE L'ENSEIGNEMENT TECHNIQUE Nouvelles Technologies en Tuyauteries Multicouches - French version only

CERN Multimedia

Davide Vitè

2002-01-01

Mardi 28 mai, mercredi 29 mai 28 mai, 9:30 - 12:00 - Training Centre Auditorium, Room 11, bldg. 593 28 mai, 14:00 - 17:00; 29 mai, 9:00 - 12:00 - Training Centre Rooms 13 and 15, bldg. 593 Nouvelles Technologies en Tuyauteries Multicouches Jacques Dougoud / GEBERIT SA, Lausanne, Suisse Mario Bettini / GEORG FISCHER PFCI S.r.l., Peschiera del Garda, Brescia, Italie Christian Tacco / VALSIR S.P.A., Vestone, Brescia, Italie Depuis quelques années l'apparition de tubes multicouches a changé radicalement la conception des tuyauteries, tant pour les applications industrielles que domestiques. Les utilisations au CERN concernent pratiquement tous les fluides, c'est-à-dire eau sanitaire, eau déminéralisée, air comprimé, fluorocarbones liquides ou gazeux, et tous les gaz, depuis l'hélium jusqu'au xénon. Ce séminaire de l'Enseignement Technique est adressé à toute personne concern&eac...

Superficie específica de una bentonita mediante la adsorción de azul de metileno

Directory of Open Access Journals (Sweden)

Jorge Alejo Pinzón Bello

2010-07-01

Full Text Available Se estudió la determinación de la superficie específica de una bentonita colombiana, procedente del Valle del Cauca, mediante la adsorción de azul de metileno, a 298 K. Este método se comparó con el de la adsorción de nitrógeno a 77 K.

Energy and greenhouse gas profile of the Nouvelle Aquitaine region. Release 2017

International Nuclear Information System (INIS)

Rousset, Alain; Poitevin, Lionel; Loeb, Amandine; Philippot, Herve; Rebouillat, Lea; Jacquelin, Antoine

2017-06-01

This publication first proposes graphs and comments characterising final energy consumption of the Nouvelle Aquitaine region: regional situation in 2015 (analysis per sector and per energy), primary resources, social-economic analysis (energy bill, level of energy poverty, burden due to old housing and commuting for households), evolution of energy consumption between 2005 and 2015 (per sector, per source of energy, evolution of energy intensity and of the energy bill). The next part addresses greenhouse gas emissions: regional situation in 2015 (distribution in terms of emission type and per gas), evolutions between 1990 and 2015, evolutions per sector. The third part addresses renewable energies: regional situation for the different types of renewable energy, comparison with final energy consumption, comparison with national data, production evolutions, focus per sector (wood and wood by-products, heat pumps in the housing sector, urban waste valorisation units, biogas valorisation, bio-fuels, wind energy, hydroelectricity, solar photovoltaic). The last part recalls national objectives related to energy, to greenhouse gas emissions for France and for the region, in relationship with the law on energy transition and for a green growth

Medida de calor específico e lei de resfriamento de Newton: um refinamento na análise dos dados experimentais

Directory of Open Access Journals (Sweden)

Silva Wilton Pereira da

2003-01-01

Full Text Available Uma das técnicas para a determinação do calor específico de sólidos e líquidos dispensa o uso de um calorímetro e utiliza a lei de resfriamento de Newton na análise dos dados experimentais. O sucesso desta técnica pressupõe que seja possível determinar, com pequenas incertezas, as temperaturas do sistema imediatamente antes e imediatamente depois das transferências internas de calor devido à imersão do corpo (dujo calor específico se deseja medir em um recipiente contendo água quente. Neste artigo é proposto um refinamento desta técnica utilizando-se dois ajustes de curvas para a função que descreve a lei de resfriamento, com pequenas extrapolações, para de determinar essas temperaturas e também as suas incertezas. Isto possibilita determinar não só o valor médio do calor específico, mas também a incerteza deste valor médio, por propagação de erros. O ajuste da própria função que descreve a lei de resfriamento aos dados possibilitou a comparação imediata dos parâmetros obtidos experimentalmente com aqueles previstos pela teoria, e há uma grande concerdânciaentre eles. A aplicaçãodeste refinamento na determinação do calor específico do alumínio indica que tal procedimento é eficaz mesmo quando se trabalha com instrumentos de baixo custo, voltados para o ensino.

Tratamiento de una sesión de la fobia específica a las arañas en niños

OpenAIRE

Graciela Bermúdez-Ornelas; Laura Hernández-Guzmán

2008-01-01

Este estudio se propuso explorar el efecto del tratamiento de una sesión conductual de la fobia específica, diseñado por Öst, sobre las conductas de acercamiento y manipulación de las arañas por parte de niños con diagnóstico de fobia específica y su ansiedad, según la percepción de sus padres, una semana, tres y seis meses después del tratamiento. El estudio cuasiexperimental empleó un diseño de serie temporal interrumpida simple. Se aplicó la intervención en forma individual a 10 niños, ent...

Une voix dans un chœur risque de n’être point entendue. André Gide et La Nouvelle Revue française, 1908-1914

NARCIS (Netherlands)

Koffeman, M.N.; Wittmann, Jean-Michel

2017-01-01

Cet article étudie la tension entre l’individualisme gidien et la collectivité littéraire que forme la première Nouvelle revue française. Entreprise commune par excellence, la revue gagne à être considérée dans son ensemble. Une lecture des sommaires de la NRF relativise le rôle de Gide et met en

Test des photomultiplicateurs en silicium couplés à un scintillateur plastique pour la nouvelle Tape Station

CERN Document Server

sekal, Smain

2014-01-01

L’une des parties essentielles de la l’installation ISOLDE est la tape Station (contrôleur de bandes), qui permet la vérification de la qualité du faisceau délivré aux expériences. On prévoit à ISOLDE de remplacer l’ancienne Tape Station, par une nouvelle Tape station; et l’un des paramètres essentiels pour la performance de la tape Station est l’efficacité de détection. Le but de ce travail est de vérifier l’efficacité des détecteurs de particules bêta, composés par l’association des photomultiplicateurs en Silicium à un scintillateur plastique pour differentes distances.

Yankaya Dilek, La nouvelle bourgeoisie islamique. Le modèle turc, Presses universitaires de France, coll. Proche Orient, 2013, 216 p.

OpenAIRE

Özatalay , Cem

2014-01-01

International audience; Paru en mars 2013, le livre de Dilek Yankaya intitulé La nouvelle bourgeoisie islamique. Le modèle turc apporte une contribution remarquable pour comprendre les dynamiques sociales qui sous-tendent la polarisation politique et culturelle qui marque tout autant l’histoire récente de la Turquie que les événements de Gezi. En mettant en lumière les aspirations et la conscience de classe de la bourgeoisie islamique en formation, Yankaya essaie de montrer dans son ouvrage c...

Origin of acid orthoderived and paraderived geologic formations of the central part of the province of Limousin (France). A possible source for uraniferous leucogranite

International Nuclear Information System (INIS)

Bourguignon, A.

1988-01-01

Important metamorphic formations of the central part of the province of Limousin are studied by chemical investigations for characterization of their primary signature. Four large orthoderived formations are compared: Dronne, Meuzac, and Thaurion arcs and leptynite formations. The typology of the parent magmatism of orthogneiss and leptynite allows to find leack most of plutonic associations known in the Variscan chain (subalkaline, calcoalkaline, aluminous). Interpretation of primary geochemical fractionation in rocks from the Dronne are suggests cogenetism of the whole facies following a fractionated crystallization process. Moreover rocks from the Dronne arc have a peraluminous character with high U and Th content related to subalkaline magmatism which make of them a potential source of uraniferous peraluminous leucogranites. Paraderived formations are represented by 3 mica schist formations and 2 gneiss formations. Each unit is individualized by geochemical study of mica schist. Gneiss formation are chemically distinct. These differences confirm that they belong to distinct lithologic units. Trace elements are used to precise the paleogeotectonic context of original sediment deposition [fr

Anatomía y densidad o peso específico de la madera

OpenAIRE

León Hernández, Williams J.

2010-01-01

El presente trabajo trata sobre la relación que existe entre las características anatómicas de la madera y su densidad o peso específico. Tomando en consideración la importancia de esta propiedad física y su relación con otras propiedades físico-mecánicas de la madera, es necesario conocer cuáles son los elementos celulares que influyen sobre la misma. En el caso de maderas de coníferas, las características de las traqueidas definen el valor promedio y el patrón de variac...

Estudo comparativo da massa específica aparente e retratibilidade da madeira de pau-brasil (Caesalpinia echinata LAM. nativa e de reflorestamento

Directory of Open Access Journals (Sweden)

Sinval dos Santos Marques

2012-04-01

Full Text Available Entre as propriedades físicas da madeira, a massa específica aparente e a retratibilidade são características importantes na avaliação da qualidade da madeira para ampla gama de uso. A massa específica aparente, ou densidade aparente, está relacionada a uma série de outras características, principalmente àquelas relacionadas às propriedades mecânicas e anatômicas da madeira. Do mesmo modo, a retratibilidade também é importante característica, pois avalia a estabilidade dimensional das madeiras, sendo de grande importância para aplicações em que a madeira não deve apresentar contrações excessivas durante sua utilização. Com base nisso, este estudo teve como objetivo comparar a massa específica aparente e a retratibilidade da madeira de pau-brasil, proveniente de áreas naturais e de reflorestamentos com 10, 15, 20, 26 e 30 anos. Tais avaliações foram realizadas segundo a metodologia preconizada pelo Método Brasileiro 26/1940 da Associação Brasileira de Normas Técnicas. Os resultados indicaram que houve variação na massa específica aparente nas diferentes idades, com os maiores valores para a madeira de 30 anos de idade, que foram próximos aos encontrados para amostras de madeira nativa. A retratibilidade volumétrica total também variou em função da idade, não apresentando grande diferença em relação à madeira proveniente de áreas naturais.

Efectivitat de la teràpia craneosacral en el dolor lumbar crònic no específic: estudi experimental i aleatoritzat.

OpenAIRE

Grañó Martí, Sílvia

2015-01-01

Pregunta clínica: És més efectiu el tractament convencional del dolor crònic lumbar no específic en l'edat adulta si li afegim el tractament amb teràpia craneosacral? Objectiu: Valorar l'efectivitat de la teràpia craneosacral en persones en edat adulta amb dolor crònic lumbar no específic. Metodologia: Es realitzarà un estudi experimental a partir d'un assaig clínic aleatoritzat i amb un simple cec. Es durà a terme durant l'any 2016 i mitjans de 2017 a la població de Lleida. La mostra e...

MOOCs et mobilités étudiantes : vers une nouvelle circulation des connaissances ? Observations au regard de l&8217;Afrique francophone

OpenAIRE

Meyer, Jean-Baptiste

2017-01-01

Les discours actuels sur l'internationalisation de l'enseignement supérieur font grand cas des cours à distance en diffusion libre et massive. Ils offrent des possibilités nouvelles de transmettre des connaissances élaborées, à un grand nombre de personnes, et sans recours à d'autres supports qu'un ordinateur connecté. Ces modalités en font un outil prometteur de transfert ou de partage international, puisque les frontières des pays sont effacées par la transmission numérique. Elles peuvent d...

Spectrophotometric titrations: Application to the determination of some elements in uranium solutions; Les titrages spectrophotometriques: Application a la determination de quelques elements dans les solutions d'uranium

Energy Technology Data Exchange (ETDEWEB)

L' Her, M [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1967-01-01

The aim of this work is the application of spectrophotometric titrations to the analysis of uranium-containing solutions. We have been led to examine the general principles involved in these titrations, and we give a brief outline of these principles. In the first part we deal therefore with spectrophotometric titrations from a general point of view, examining their fundamental principle, their practical execution as well as the various possibilities of the method. The advantage of the titration are examined, in particular that of lending itself simultaneous determination of two species. The possibility of applying these spectrophotometric titrations to the analysis of uranium-containing solutions is the subject of the second part of this report: the dosage of a few species in uranium (VI) solutions is described. To this second part is added an experimental appendix consisting of a description of the apparatus, as well as of the operational techniques used for certain titrations, in particular those involving solutions containing uranium. (author) [French] Le but de ce travail est l'application des titrages spectrophotometriques a l'analyse des solutions uraniferes. Nous avons ete amenes a examiner les principes generaux de ces titrages, principes qu'il nous est apparu necessaire de rappeler. Dans une premiere partie nous traiterons donc d'une facon generale des titrages spectrophotometriques, en examinant leur principe fondamental, leur mise en oeuvre ainsi que les possibilites diverses de dosage. Nous examinerons aussi les avantages de la methode de titrage, en insistant notamment sur la possibilite de faire des dosages successifs. La possibilite d'application de ces titrages spectrophotometriques a l'analyse des solutions uraniferes sera le sujet de la deuxieme partie: nous y decrivons le dosage de quelques especes, dans les solutions d'uranium (VI). A cette deuxieme partie nous joindrons une annexe experimentale comportant une description de l'appareillage que

Lenguaje específico de dominio para aplicaciones de modelación glaciológica

OpenAIRE

Gel, Matías; Urciuolo, Adriana Beatriz; Iturraspe, Rodolfo Javier

2014-01-01

Las aplicaciones de software de modelado de la naturaleza se caracterizan por la complejidad propia de la información y procesos ambientales. Se requiere un nivel de abstracción adecuado y flexibilidad para la modelación de los procesos naturales. Algunas limitaciones del software del dominio provienen del uso de herramientas y lenguajes que carecen de facilidades para representar los conceptos particulares de estas aplicaciones. El Modelado específico del dominio (DSM) propone elevar el nive...

Tradition et innovations esthétiques dans la nouvelle yéménite contemporaine Tradition and aesthetic innovations in contemporary Yemeni short stories

Directory of Open Access Journals (Sweden)

Géraldine Jenvrin

2008-04-01

Full Text Available Le nouveau recueil de Mu/hammad ‘Abd al-Wakîl Jâzim témoigne d’une transformation capitale dans la littérature yéménite contemporaine :  le passage d’une forme expérimentale en rupture avec les règles de la nouvelle traditionnelle et avec la réalité yéménite, à une autre forme plus accomplie dans laquelle les principes traditionnels de la nouvelle sont ici associés sans complexe aux formes renouvelées du genre.  La nouvelle intitulée Le maître des vautours, présente, dans une structure narrative traditionnelle, un conte fantastique moderne qui mêle réalisme, symbolisme et poésie, et dans lequel l’auteur traite à sa manière les thèmes littéraires contemporains de la dualité du rêve et de la réalité, du désenchantement et de l’enfermement perpétuel.  C’est notamment en s’inspirant de la langue, des pratiques orales, des croyances et de l’imaginaire populaire, que l’auteur, soucieux de donner un ancrage au texte dans la réalité yéménite, transfigure cette expérience existentielle moderne.The latest collection of short stories by Mu/hammad 'Abd al-Wakîl signals a major shift in contemporary Yemeni literature: from an experimental form, breaking away from both traditional short story conventions and Yemeni reality, to another, more accomplished form, unabashedly mixing traditional short story principles with renewed genre forms. The short story entitled The Vulture Master presents us, from within a traditional narrative structure, with a modern fantasy tale blending in realism, symbolism and poetry, and where the writer deals in his own way with such contemporary literary themes as disenchantment, perpetual captivity, and the duality of dream and reality. Drawing his inspiration from language itself, oral practices, beliefs and popular imagery, the writer, seeking to set his tale firmly in Yemeni reality, manages to transfigure this modern existential experiment.

Ansiedad social específica y generalizada: ¿variantes del mismo trastorno o categorías diferentes con características similares?

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Ihab Zubeidat

2007-01-01

Full Text Available El objetivo de este estudio descriptivo transversal fue evaluar las diferencias y similitudes entre la ansiedad social específica y generalizada en una muestra de adolescentes españoles. Para ello, un total de 1.012 jóvenes fueron evaluados, en su entorno escolar, mediante una serie de pruebas que miden variables demográficas, ansiedad social, competencias psicosociales y distintos problemas clínicos. Dos grupos de ansiedad social (específica, n = 50; generalizada, n = 38 fueron establecidos en función de un doble criterio cuantitativo mediante la Escala de Ansiedad en Interacción Social. Los resultados indicaron que no había diferencias significativas entre los dos grupos respecto a las variables demográficas y competencias psicosociales evaluadas. Las únicas diferencias significativas encontradas fueron obtenidas en las variables referidas a la actuación e interacción en situaciones sociales, donde los adolescentes con ansiedad social generalizada puntaron más alto que los que presentaban ansiedad social específica. Parece ser que el patrón de las diferencias en los niveles de ansiedad va asociado a las propias situaciones de actuación e interacción social.

Multielement statistical evidence for uraniferous hydrothermal activity in sandstones overlying the Phoenix uranium deposit, Athabasca Basin, Canada

Science.gov (United States)

Chen, Shishi; Hattori, Keiko; Grunsky, Eric C.

2018-04-01

The Phoenix U deposit, with indicated resources of 70.2 M lb U3O8, occurs along the unconformity between the Proterozoic Athabasca Group sandstones and the crystalline basement rocks. Principal component analysis (PCA) is applied to the compositions of sandstones overlying the deposit. Among PCs, PC1 accounts for the largest variability of U and shows a positive association of U with rare earth elements (REEs) + Y + Cu + B + Na + Mg + Ni + Be. The evidence suggests that U was dispersed into sandstones together with these elements during the uraniferous hydrothermal activity. Uranium shows an inverse association with Zr, Hf, Th, Fe, and Ti. Since they are common in detrital heavy minerals, such heavy minerals are not the major host of U. The elements positively associated with U are high in concentrations above the deposit, forming a "chimney-like" or "hump-like" distribution in a vertical section. Their enrichment patterns are explained by the ascent of basement fluids through faults to sandstones and the circulation of basinal fluids around the deposit. The Pb isotope compositions of whole rocks are similar to expected values calculated from the concentrations of U, Th, and Pb except for sandstones close to the deposit. The data suggest that in situ decay of U and Th is responsible for the Pb isotope compositions of most sandstones and that highly radiogenic Pb dispersed from the deposit to the proximal sandstones long after the mineralization. This secondary dispersion is captured in PC8, which has low eigenvalue. The data suggests that the secondary dispersion has minor effect on the overall lithogeochemistry of sandstones.

Baseline risk assessment of ground water contamination at the inactive uraniferous lignite ashing site near Belfield, North Dakota

International Nuclear Information System (INIS)

1994-08-01

This Baseline Risk Assessment of Ground Water Contamination at the Inactive Uraniferous Lignite Ashing Site Near Belfield, North Dakota, evaluates potential impacts to public health or the environment resulting from ground water contamination at the site where coal containing uranium was burned to produce uranium. The US Department of Energy's Uranium Mill Tailings Remedial Action (UMTRA) Project is evaluating plans to remedy soil and ground water contamination at the site. Phase I of the UMTRA Project consists of determining the extent of soil contamination. Phase II of the UMTRA Project consists of evaluating ground water contamination. Under Phase II, results of this risk assessment will help determine what remedial actions may be necessary for contaminated ground water at the site. This risk assessment evaluates the potential risks to human health and the environment resulting from exposure to contaminated ground water as it relates to historic processing activities at the site. Potential risk is quantified for constituents introduced from the processing activities, and not for those constituents naturally occurring in water quality in the site vicinity. Background ground water quality has the potential to cause adverse health effects from exposure through drinking. Any risks associated with contaminants attributable to site activities are incremental to these risks from background ground water quality. This incremental risk from site-related contaminants is quantified in this risk assessment. The baseline risk from background water quality is incorporated only into the assessment of potential chemical interactions and the definition of the overall site condition

Obtención y caracterización de un anticuerpo específico contra la hormona luteinizante humana

Directory of Open Access Journals (Sweden)

Adriana Umaña

1996-12-01

Full Text Available En el presente trabajo se describe la obtención del anticuerpo policlonal específico contra la hormona luteinizante humana (HL. La hormona fue purificada a partir de una fracción rica en glicoproteínas, obtenida de hipófisis humanas, siguiendo el método desarrollado previamente en el proyecto basado en diferencias de solubilidad y constante dieléctrica entre las diferentes proteínas. El antisuero específico se obtuvo por inoculación del antígeno en conejos raza Nueva Zelanda y su producción controlada valorando el título por RIA. La caracterización parcial del antisuero se realizó mediante la determinación del título óptimo, afinidad, especificidad y su aplicabilidad para la cuantificación en términos de curva estándar y control de calidad, en comparación con un antisuero de referencia internacional. Los resultados indicaron que el anticuerpo obtenido puede emplearse en la cuantificación de HL por RIA.

Qualidade de vida de crianças e adolescentes com insuficiência renal crônica em hemodiálise: construção do Módulo Específico DISABKIDS®

OpenAIRE

Isabella Schroeder Abreu

2014-01-01

Estudos envolvendo a mensuração da qualidade de vida relacionada à saúde (QVRS) de crianças e adolescentes com insuficiência renal crônica (IRC) são escassos no Brasil, o que pode ser resultado, da ausência de instrumentos específicos para este fim. Muitos estudos, nesse sentido, são desenvolvidos utilizando-se instrumentos específicos para adultos com IRC ou instrumentos genéricos de QVRS, não específicos para esta condição crônica (CC). A presente pesquisa trata-se de um estudo metod...

Hostelería para fines específicos en el aula de E/LE

OpenAIRE

Giménez Folqués, David

2011-01-01

Cuando un alumno extranjero se dispone a estudiar un nuevo idioma, tiene la esperanza de volver a su país sabiendo al menos desenvolverse en los ámbitos más esenciales: en una conversación cotidiana, en el banco, en una entrevista de trabajo o,por qué no, en un restaurante. Así pues, hemos seleccionado la Hostelería para fines específicos en el aula de E/LE como proyecto con el fin de auxiliar al alumno en este campo. Este objetivo lo llevamos a cabo mediante un enfoque por tareas, es decir,a...

Relación entre el rendimiento académico y las competencias específicas en la asignatura de Actividad Física para Poblaciones Especiales.

OpenAIRE

Cardona González, Claudia Andrea; Esteve Lanao, Jonathan; Larumbe Zabala, Eneko; Álvarez Carnero, Elvis

2012-01-01

OBJETIVOS: relacionar el rendimiento en la calificación acumulada con la percepción que tiene el alumnado de adquisición de las competencias específicas de la asignatura a lo largo del curso académico. MÉTODO: Participaron 50 alumnos de la asignatura Poblaciones Especiales del Grado en Ciencias del Deporte del curso 2011-2012. Su rendimiento académico se comparó con el resultado de una encuesta sobre el grado adquisición de las competencias específicas de la asignatura. RESULTADOS: No se hall...

Les théosophes et l’organisation internationale de l’éducation nouvelle (1911-1921

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Sylvain Wagnon

2017-01-01

Full Text Available The historic importance of Theosophy within the realm of education is due to their presence in their reflexions and educational endeavours are at the origins of that nebulous movement called the New Education (éducation nouvelle. Their presence at the beginning of the organization of the New Education has been explored by several pioneering papers, but remains the blind spot in this area. In fact Theosophy’s influence has been felt but rarely analysed as the matrix of the nebulous international organization of new education. If the Theosophists’ influence were to be recognised, we think that their role, their persistent work that brought on not only the rise of new education, more specifically, the constitution of the International League of New Education but was also the making of educators of Theosophy teachings such as María Montessori and Rudolf Steiner who were not only the roots of the new education but also its main components.

La utilización de software específico y Apps móviles para el control del entrenamiento en deportes cíclicos de resistencia

OpenAIRE

Javaloyes Torres, Alejandro; Sarabia, José Manuel; Hernández-Davó, Jose Luis; Sabido, Rafael; López-Grueso, Raúl

2017-01-01

El control del entrenamiento es un proceso fundamental en la mejora de las cualidades físicas específicas de aquellos deportistas practicantes de cualquier deporte. Esta tarea es llevada a cabo por los correspondientes entrenadores y/o preparadores físicos, siendo este control específico para cada deporte. Controlar aquellos aspectos relacionados con la fatiga producida, la adaptación a las cargas de trabajo y la asimilación de las sesiones de entrenamiento es de vital importancia en la conse...

Impacto de la maduración y de los puestos específicos en la condición física en jóvenes futbolistas

OpenAIRE

Massuça, Luis; Soarez, Helena; Fragoso, Isabel; Barrigas, Carlos

2012-01-01

Objetivo Describir las características condicionales de una población de deportistas jóvenes, tanto por nivel madurativo como por puestos específicos. Muestra Se han estudiado 95 jugadores de fútbol (13-16 años) pertenecientes a escuelas deportivas de futbol. Métodos Las variables utilizadas en este estudio han sido: edad, puesto específico (medio, defesa, delantero, portero), peso, altura, maduración, capacidad aeróbica, fuerza isométrica máxima del tren superior, ...

Intervención en un trastorno específico del lenguaje: un estudio de caso

OpenAIRE

Toral Buena, Sergio

2017-01-01

El lenguaje es un instrumento útil de socialización que permite la comunicación entre las personas, satisfacer las necesidades básicas, expresar sentimientos y regular el comportamiento de los demás. En este trabajo se efectúa una revisión del concepto del lenguaje y sus dificultades, en concreto, del Trastorno Específico del Lenguaje. Analizaremos el estudio de caso de un alumno con TEL y la comorbilidad de distintos trastornos con los que también cuenta. Finalmente se presenta una pro...

específico en la sierra norte de Sevilla

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Rafael Garzón García

2008-01-01

Full Text Available La primera parte del artículo ofrece una visión panorámica de la política de fomento del uso público en la Red de Espacios Naturales Protegidos de Andalucía desde su origen hasta nuestros días, con especial incidencia en cuestiones tales como el papel preponderante asumido por la figura de Parque Natural, el desequilibrio territorial de las intervenciones planteadas, o la necesaria ordenación y planificación de la actividad. Ello conforma el contexto idóneo para abordar, en segunda instancia, un análisis particularizado de la gestión del uso público en el Parque Natural Sierra Norte de Sevilla. La elección de este ámbito territorial se fundamenta tanto en sus especiales condicionantes para el fomento de esta línea de acción (privilegiada situación, existencia de una demanda tradicional asociada a determinados enclaves, propiedad de la tierra… como en la singular gestión desarrollada desde la declaración del parque, destacando las nuevas perspectivas e incertidumbres que parecen despertarse a partir del impulso y aprobación de una planificación específica

Nouvelle application de control des cavités 200 MHz RF du PS (CERN)

CERN Document Server

Cotte, D

2011-01-01

Le système Radio Fréquence (RF) 200MHz du PS est un outil essentiel pour la préparation des faisceaux haute intensité du PS. Dans l’anneau PS on trouve 6 cavités 200 MHz utilisées pour contrôler : • l’émittance longitudinale des « bunches » • le processus de « Rebunching » du faisceau avant de l’envoyer au SPS. Chaque cavité est pilotée par des événements appelés « timing » et suit une fonction de tension programmée. Cependant, l’électronique utilisée pour piloter les cavités 200 MHz du PS est obsolète et sa fiabilité non garantie pour cause du manque de pièces de rechange. Ce document décrit le fonctionnement du nouveau programme d’application qui fait abstraction de l’ancienne matrice hardware. Elle suit les recommandations décrites dans l’étude d’une nouvelle structure pour le système RF 200MHz du PS. [1

Inglés para fines específicos: hacia una propuesta metodológica para la enseñanza de la comprensión lectora

OpenAIRE

García Rayego, Rosa; Martínez Victorio, Luis Javier

1991-01-01

El presente artículo recoge parte de las investigaciones realizadas en el campo de la Psicolingüística, y se apoya en sus logros para proponer una metodología de la comprensión lectora en un curso de Inglés para Fines Específicos (E.S.P.). La primera parte del trabajo introduce brevemente los rasgos distintivos que han venido definiendo los cursos de Inglés para Fines Específicos. En la segunda parte, se exponen los principales modelos teóricos del proceso de lectura ('bottom-up' y 'top down'...

Les nouvelles formes de la communication autour des projets urbains : modalités, impacts, enjeux pour un débat participatif

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Hélène Bailleul

2008-09-01

Full Text Available Dans cet article, nous observons les évolutions que l’usage des nouvelles technologies implique dans la communication autour des projets urbains. Notre analyse des nouvelles modalités qu’Internet a pu importer dans la participation des habitants aux projets urbains (partie 1 nous pousse à observer, plus spécifiquement, les modifications qui ont trait, dans ce contexte, à la nature et au statut de l’information sur l’espace. La démocratisation des techniques de représentation de l’espace par ordinateur (3D, simulation entraîne le recours quasi systématique à des images virtuelles du projet, d’une grande qualité (partie 2, mais dont on ne connaît que très peu les impacts sur la perception et la réception que les habitants font du projet (partie 3.In this article, we observe the evolutions involved by the use of new technology in the communication around urban projects. Our analysis of the new modalities, Internet was able to import in the participation of inhabitants in urban projects (chapter 1 urges us to examine, more specifically, the modifications concerning the nature and the status of the information about space. The democratization of computer-based spatial representation’s tools (3D, simulation entails more and more systematic recourse to virtual images of the project, with high definition (chapter 2. But, nowadays, we still know little about their impacts on the perception and the reception, the inhabitants make of the project (chapter 3.

Instrumentos específicos para avaliar a qualidade de vida em crianças e adolescentes com asma

Directory of Open Access Journals (Sweden)

Cristian Roncada

2013-06-01

Full Text Available OBJETIVO: Identificar e descrever os instrumentos específicos que avaliam a QVRS de crianças e adolescentes com asma. FONTES DOS DADOS: Realizamos buscas nas bases de dados PubMed, Ovid e LILACS utilizando várias combinações de descritores (MeSH terms, selecionando artigos originais sobre desenvolvimento de questionários específicos de QVRS, publicados em inglês, português ou espanhol, entre 1990 e 2012. SÍNTESE DOS DADOS: Foram identificados 15 instrumentos que preencheram os critérios de inclusão. A maioria dos estudos avaliou confiabilidade mediante consistência interna e/ou reprodutibilidade e/ou sensibilidade às mudanças. A validade foi avaliada mediante a comparação com hígidos (validade discordante ou análise fatorial. CONCLUSÕES: Dos 15 instrumentos, três são os mais utilizados, o PAQLQ, o PedsQL-Asthma e DISABKIDS. Em geral, estes três instrumentos possuem características psicométricas adequadas e são práticos de aplicar, mas apenas o PAQLQ completou a adaptação cultural para o Brasil.

Thermal reduction and U-recovery from uraniferous phosphorite concentrate of phosphatic sandstone deposit of G. Qatrani, western desert, Egypt

International Nuclear Information System (INIS)

Abdel Monem, H.M.

1988-01-01

The produced uraniferous phosphorite concentrate from cationic floatation of phosphatic sandstone of G. Qatrani contain 32.01% P 2 O 5 , 0.39% eU and 5.65% SiO 2 . Thermal reduction technique using a high calorific hydrocarbon (Mazout) is used to recover U and P 2 O 5 . At elevated temperature ranging from 500 to 800 0 C, reducing gases mainly, Co are evolved due to mazout cracking; beside a carbon film is precipitated around the treated phosphate grains. These conditions have proved quite beneficial in reducing U+6 into U+4, as well as creating a sufficiently low redox potential below 350 mV in the subsequent leach solution. The effect of different relevant factors are studied and optimized as 700 C, 30 minutes and 20% (wt/wt) ratio for reducing temperature, duration time and amount of reductant added respectively. Hydrochloric acid of 8 N appears to offer the best potential for acidulation of the reduced phosphates at room temperature (25 0 C) and 30 minutes retention time of agitation leaching. The results showed that, more than 98% of P 2 O 5 reports in solution as phosphoric acid and about 97% of uranium is retained in an insoluble form (U+4). Applying oxidizing roast of the leached reduced materials at 800 0 C in the presence of 2% NaCl, would result in both removing the carbon content and oxidizing the contained U+4 to U+6. By subsequent leaching with dilute acidic solution (2N HCl) more than 98% of the contained U+6 is readily soluble

Calor específico a bajas temperaturas de alcoholes sólidos vítreos y cristalinos

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Talón, C.

2004-02-01

Full Text Available We present and discuss in this work specific-heat experiments at low temperature that we have conducted on different molecular (hydrogenbonded glasses and crystals. Specifically, we have measured the low-temperature specific heat Cp(T for a set of solid alcohols: normal and fully-deuterated ethanol, 1−and 2−propanol, and glycerol. Ethanol exhibits a very interesting polymorphism presenting three different solid phases at low temperature: a fully-ordered (monoclinic crystal, an orientationally-disordered (cubic crystal or “orientational glass”, and the canonical (amorphous structural glass. By measuring and comparing the low-temperature specific heat of the three phases, in the boson peak range, 2−10 K, as well as in the tunneling-states range, below 1K, we are able to provide a quantitative confirmation that “glassy behavior” is not an exclusive property of amorphous solids. On the other hand, propanol is the simplest monoalcohol with two different stereoisomers (1−and 2−propanol, which allows us to study directly the influence of the spatial rearrangement of atoms on the universal properties of glasses. We have measured the specific heat of both isomers, finding a noteworthy quantitative difference between them. Finally, low-temperature specific-heat data of glassy and crystalline glycerol have also been obtained.

En este trabajo, presentamos y discutimos experimentos de calorimetría a bajas temperaturas que hemos realizado en diferentes vidrios y cristales moleculares (de puentes de hidrógeno. En concreto, hemos medido el calor específico a bajas temperaturas Cp(T para un conjunto de alcoholes sólidos: etanol normal y completamente deuterado, 1−y 2−propanol, y glicerol. El etanol presenta un muy interesante polimorfismo, con tres fases sólidas diferentes a bajas temperaturas: un cristal estable perfectamente ordenado (monoclínico, un cristal (cúbico con desorden orientacional o “vidrio orientacional”, y

The English Democrats Party ou l’émergence d’une nouvelle mouvance : le nationalisme autonomiste anglais

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Claude BARBANTI

2011-03-01

Full Text Available La réforme dite de dévolution (décentralisation, votée en 1997, a entraîné de multiples conséquences et transformations dans la vie politique britannique. Le système traditionnellement unitaire de Westminster s’en est trouvé profondément bouleversé. Pourtant, tandis que de nombreuses études furent menées sur les divers nouveaux aspects d’une Grande-Bretagne dévolue, peu se sont penchées sur les conséquences de cette nouvelle asymétrie constitutionnelle sur l’Angleterre. Lorsque des députés de circonscriptions « celtiques » (en Écosse ou au pays de Galles arrivent à influencer le résultat de votes sur des affaires exclusivement anglaises, certains députés d’Angleterre, à Westminster, ne peuvent que se sentir désarmés face au manque de dispositions constitutionnelles garantissant un statut particulier pour ce territoire. Dès lors, de cette « question anglaise » (« English Question », naîtra toute une nouvelle mouvance autonomiste entièrement dédiée à l’obtention d’un Parlement anglais.Devolution at the end of the 1990s has led to numerous consequences and transformations in British politics. The traditional and centralised Westminster system has been turned upside down, and many studies have been carried out on the various aspects of this new “devolved Britain”.Yet, few have paid attention to the English case. However, the constitutional asymmetry thus created has indeed also affected England. When Celtic MPs succeed to influence the outcome of votes on exclusively English matters, one can realise that there is no such thing as an English government. Therefore, some English MPs have felt the need to ask for an option of “English Votes on English Laws”. This article tries to demonstrate that a feeling of “resentment” emerges from this situation and leads to the birth of a new “English” nationalism, entirely dedicated to obtaining an English Parliament.

“Sí quiero”: propuesta didáctica de español para fines específicos

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María Eugenia Brime Bertrand

2012-08-01

Full Text Available Esta actividad ha sido creada para trabajar con un grupo de 30 estudiantes italianos de economía del turismo con un nivel A1 del MCRE. El curso tenía una duración de 30 horas divididas en 15 sesiones de dos horas cada una, durante las cuales se trabajaba el lenguaje específico del turismo a través de diferentes situaciones comunicativas. Para ello se creó una WebQuest (a partir de ahora WQ instalada en un Wiki.

“Sí quiero”: propuesta didáctica de español para fines específicos

Directory of Open Access Journals (Sweden)

María Eugenia Brime Bertrand

2012-01-01

Full Text Available Esta actividad ha sido creada para trabajar con un grupo de 30 estudiantes italianos de economía del turismo con un nivel A1 del MCRE. El curso tenía una duración de 30 horas divididas en 15 sesiones de dos horas cada una, durante las cuales se trabajaba el lenguaje específico del turismo a través de diferentes situaciones comunicativas. Para ello se creó una WebQuest (a partir de ahora WQ instalada en un Wiki.

Efeitos do treinamento de força específico no desempenho de nadadores velocistas treinados com parachute

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Danilo Sales Bocalini

2010-09-01

Full Text Available OBJETIVO: verificar os efeitos do treinamento de força específico no desempenho de nadadores velocistas. METODOLOGIA: dois grupos de nadadores randomizados em treinados sem (TSP, n: 8 e com parachute (TCP, n: 12 foram submetidos a treinamento de 12 semanas (6 x semana; 1 sessão de 2 h/dia, sendo avaliados a força muscular (FMMI; a força específica (FE e o tempo de sustentação de força (TSF; o número de braçadas em 50m (NB 50m; o tempo e a velocidade de nado em 15 (V 15m e 50m (V 50m, antes e após o protocolo. RESULTADOS: após o programa de treinamento, não ocorreram modificações na FMMI e V 15m para ambos os grupos. Nas demais variáveis houve melhora significante (p 18%; FE (> 30%; TSF (> 35%; NB 50m ( 16%. O grupo TSP apresentou melhora no TSF (> 9%. CONCLUSÃO: o emprego do parachute foi eficiente em melhorar os parâmetros de força e no desempenho no teste de 50m

Iniciadores específicos para detectar las especies de Colletotrichum causantes de la antracnosis de los olivos

OpenAIRE

Martín, María P.; García-Figueres, F.; Trapero, Antonio

2002-01-01

Colletotrichum acutatum y C. gloeosporioides son los agentes causantes de la antracnosis de los olivos en España. En este trabajo se presentan los iniciadores específicos diseñados que, junto con el iniciador general ITS4, permiten discriminar a ambas especies mediante la reacción en cadena de la polimerasa (PCR). Colletotrichum acutatum and C. gloeosporioides are the causal agents of the anthracnose on olive trees from Spain. In this work, the specific primers designed to discriminate bo...

Tratamiento de una sesión de la fobia específica a las arañas en niños

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Graciela Bermúdez-Ornelas

2008-01-01

Full Text Available Este estudio se propuso explorar el efecto del tratamiento de una sesión conductual de la fobia específica, diseñado por Öst, sobre las conductas de acercamiento y manipulación de las arañas por parte de niños con diagnóstico de fobia específica y su ansiedad, según la percepción de sus padres, una semana, tres y seis meses después del tratamiento. El estudio cuasiexperimental empleó un diseño de serie temporal interrumpida simple. Se aplicó la intervención en forma individual a 10 niños, entre 7 y 12 años, diagnosticados con fobia específica a las arañas. Se evaluó, antes, una semana después del tratamiento, tres y seis meses después, la respuesta de aproximación de los niños a las arañas y su ansiedad/depresión de acuerdo con el informe de sus padres. Se observaron mejoras estadística y clínicamente significativas después del tratamiento y tres meses después en todos los niños. La mejoría se mantuvo a los seis meses después del tratamiento para seis de los siete niños que terminaron el estudio. Los hallazgos se discuten a la luz de su relevancia clínica. Se repiten los resultados de estudios anteriores sobre la eficacia del tratamiento de una sesión en niños latinoamericanos.

Une nouvelle orientation dans l’enseignement supérieur au vietnam: de la mémoire à la résolution de problèmes

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TRƯƠNG Quang Dũng

2016-12-01

Full Text Available L’enseignement supérieur traditionnel est essentiellement basé sur la transmission du savoir et occasionnellement sur celle du savoir-faire. Il se réclame donc des disciplines universitaires (mathématiques, physique, chimie, géologie.... dispensées dans les universités et grandes écoles. Or, la réussite professionnelle et sociale dans le monde moderne exige d’autres acquis plus probants que des connaissances pures. Plusieurs recherches récentes ont ainsi montré que la résolution de bien des problèmes requiert des qualités pragmatiques d’efficacité indispensables pour l’accomplissement d’un travail créatif. Résoudre un problème revient alors à apprendre à maitriser une démarche méthodique composée de plusieurs phases, depuis l’identification du problème jusqu’à sa solution finale en passant par l’analyse judicieuse des causes. Il faut également maîtriser l’utilisation d’outils conceptuels et Méthodologiques tels que, entre autres, la « loi de Pareto », le questionnement systématique et le brainstorming . Au Vietnam on peut espérer la mise en application de ces nouvelles orientations dans un enseignement supérieur qui doit absolument se fixer comme objectif d’améliorer la qualité du travail social pour répondre aux nouvelles exigences de développement du pays.

L'auteure mise en scène et mise à nu. Sur les fausses confessions de La nouvelle pornographie

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Joëlle Papillon

2010-11-01

Full Text Available L'inclusion dans La nouvelle pornographie (2000 du nom propre de l'auteure est perçue comme une implication qui la met en danger. La métalepse est utilisée pour inscrire le roman dans la mouvance des confessions sexuelles et se jouer de leurs codes. Comme le discours publicitaire, Marie Nimier utilise la rhétorique pornographique afin de « vendre » un contenu domestique : la pornographie de surface dissimule un récit qui réinscrit l'amour comme moteur du désir féminin. Nimier joue de la métalepse pour déjouer les scènes pornographiques et séduire le lecteur par l'intelligence de ses manipulations plutôt que par ses dévoilements.

Desarrollo de la memoria autobiográfica en niños a través del recuerdo de eventos específicos. Incidencia del repaso visual y verbal

OpenAIRE

Mateo Gómez, Alonso

2016-01-01

Esta tesis se plantea como principal objetivo estudiar la memoria autobiográfica sobre eventos específicos en niños de edad preescolar mediante un diseño experimental. La memoria autobiográfica (MA) comienza a desarrollarse durante la primera infancia. En esta línea, se ha considerado que la capacidad de recordar eventos de tipo específico no aparece hasta los tres años de edad y que, por tanto, los niños en edad preescolar presentan problemas para recuperar este tipo de recuerdos. Este trab...

Adoption et retombées d'une nouvelle technologie de dépistage des infections à ERV en contexte hospitalier québécois

OpenAIRE

Attieh, Randa

2015-01-01

La « Polymerase Chain Reaction» (PCR) est une technologie moléculaire qui se veut performante pour détecter les entérocoques résistants à la vancomycine (ERV) en contexte hospitalier. La traduction de cette technologie dans les pratiques professionnelles des acteurs est conceptualisée comme un processus d’adaptation et d’ajustements des rôles entre la technologie et le milieu hospitalier. Par souci de mieux comprendre la traduction de la nouvelle technologie de dépistage PCR dans les pratique...

Patrones espaciales de la riqueza específica de las culebras Thamnophis en México Spatial patterns of species richness of garter snakes Thamnophis in Mexico

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Crystian Sadiel Venegas-Barrera

2011-03-01

Full Text Available Se identificaron tanto las áreas de mayor riqueza específica de las culebras del género Thamnophis y su presencia en las provincias biogeográficas y las Regiones Terrestres Prioritarias (RTP, como los factores antropogénicos que pueden influir en su distribución. Con la combinación de mapas de distribución potencial de las especies se creó un mapa de riqueza específica para calcular el porcentaje de celdas ocupadas por el género dentro de cada provincia biogeográfica, de cada RTP y conocer el tipo de uso de suelo. Además, se obtuvo la complementariedad de especies y la ordenación de las RTP a partir de su composición específica. El género se distribuyó en el 80.5% de México, en todas sus provincias biogeográficas. Los estados de Durango, Michoacán, Puebla, Veracruz y Oaxaca presentaron la mayor riqueza específica. Potencialmente, el género puede encontrarse en el 96% de las RTP de México con un patrón altitudinal y climático. De 6 grupos de las RTP, el grupo oriental presentó la mayor riqueza específica. El 25.8% de la distribución potencial del género se encontró en áreas modificadas por el hombre. Se discuten los patrones de distribución bajo una perspectiva ecológica, biogeográfica y de conservación y se sugiere comprobar la riqueza específica potencial con estudios de campo.We identified areas of high species richness of snakes of the genus Thamnophis, their presence within biogeographic provinces and Terrestrial Priority Regions (TPR. We also identified anthropogenic factors that may influence their distribution. We created a map of species richness from the combination of potential distribution maps of species to calculate the percentage of cells occupied by the genus within each biogeographic province, TPR and type of land use. In addition, we obtained the complementarity of species and the ordination of TPR from its species composition. The genus is distributed in 80.5% of Mexico, in all biogeographic

U-Pb, Pb-Pb, and K-Ar isotopic study and petrography of uraniferous phosphate-bearing rocks in the Thelon Formation, Dubawnt Group, Northwest Territories, Canada

International Nuclear Information System (INIS)

Miller, A.R.; Cumming, G.L.; Krstic, D.

1989-01-01

The Thelon Formation, uppermost unit of the Dubawnt Group, overlies a regionally extensive paleoweathered zone developed on a wide range of lithochronological units including formations in the lower Dubawnt Group. Authigenic uraniferous phosphate minerals, fluorapatite and goyazite, cementing Thelon conglomerate - sandstone and filling fractures in the underlying paleoweathered zone, were dated in an attempt to better constrain the age of Thelon sedimentation and diagenesis. The oldest age, 1720 ± 6 Ma, derived from phosphate-cemented sediments, is interpreted as a minimum age for diagenesis and therefore brackets initial Thelon sedimentation between emplacement of fluorite-bearing granites at 1753 Ma and authigenic phosphate cementation at 1720 Ma. Additional ages of 1685 ± 4 and 1647 Ma are interpreted as remobilization or subsequent cementation events. K-Ar ages on illite, 1386 ± 37 and 1266 ± 31 Ma, from the paleoweathered zone and basal conglomerate, respectively, are significantly younger than ages derived from coexisting phosphate. These K-Ar ages recorded hydrothermal events that may be related to processes associated with unconformity-type uranium mineralization at approximately 1400-1300 Ma. Ages from the Thelon Basin permit geochronologic correlations with the Athabasca and Hornby basins, long correlated on the basis of similarities in sedimentation, stratigraphy, and tectonic setting

Contact metamorphic effects of the basic intrusive rocks on the Proterozoic uraniferous dolostone in Cuddapah basin, Andhra Pradesh: implications on uranium mobilisation

International Nuclear Information System (INIS)

Roy, Minati; Panda, Arjuna; Dhana Raju, R.

1997-01-01

Mafic intrusive rocks in the Vempalle formation of the mid-Proterozoic Cuddapah basin occur as sills and dykes. These include minor bodies of gabbro, olivine gabbro, olivine norite, basalt and mainly dolerite with basaltic andesite. The metamorphic effects of these intrusive rocks on the uraniferous phosphatic siliceous dolostone are mainly mineralogical (thermal) with subordinate changes in chemistry. These are manifested by (a) formation of plagioclase-hornblende hornfels, (b) notable mineralogical changes in the dolostone leading to enrichment of magnetite, epidote, anatase and de-dolomitised calcite, (c) decrease in specific gravity of dolostone from 3.0 to 2.8 due to volatilisation reaction products of epidote and smectite, and (d) formation of wollastonite, chalcedony, and secondary uranium minerals (autunite and uranophane) at places, in the contact aureole that led to notable changes in the chemistry of the intrusive body and the host rock. Intrusive rocks at the contact show enrichment in Fe 2+ , Mg, Cu, Cr, Pb, Zn, Ni, and depletion in Ca and Fe 3+ , whereas the dolostone shows enrichment in Ti, Ca, and depletion in Si, Al, alkalies and P. Depletion of uranium in the affected parts (0.003% U 3 O 8 ) of mineralised dolostone (0.062% U 3 O 8 ) adjacent to the basic intrusive rocks suggests its mobilisation, due to increase in temperature, resulting in baking. This phenomenon is also manifested, at places, in the formation of secondary uranium minerals - result of remobilisation of uranium from primary phases and its subsequent precipitation. (author)

New method of determining the thermal utilization factor of a cell; Nouvelle methode de determination du facteur d'utilisation thermique d'une cellule

Energy Technology Data Exchange (ETDEWEB)

Amouyal, A; Benoist, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1956-07-01

A new formula for the thermal utilization factor is derived, which, while comparable in simplicity to the formula given by elementary diffusion theory, furnishes much more precise results. This is clearly brought out by comparison with the results given by the S{sub n} and spherical harmonics methods. (author) [French] Une nouvelle expression du facteur d'utilisation thermique, d'une simplicite comparable a celle de Ia theorie elementaire, est etablie. La comparaison avec les resultats fournis par la methode S{sub n} et les methodes d'harmoniques spheriques montre que la precision obtenue par cette formule est tres superieure a celle que donne la theorie elementaire. (auteur)

Développement des compétences interprofessionnelles de la nouvelle infirmière diplômée: revue de littérature

OpenAIRE

Meyer, Agnès,; Hauser, Christine,; Bulliard Verville, Danielle

2017-01-01

La pénurie infirmière qui touche actuellement la Suisse sera comblée en grande partie par les nouvelles diplômées infirmières1, d’ici quelques années. Cependant, un taux important de turnover dans les équipes peut mettre en péril leur encadrement. Leur processus d’insertion étant particulièrement éprouvant dans les premiers mois de pratique, il en résulte que nombre d’entre elles quittent précocement la profession. Comme stratégie pour pallier ce problème, la littérature montre les effets pos...

Treatment of uranium ores by natural leaching in Portugal; Traitement par lixiviation naturelle des minerais uraniferes portugais

Energy Technology Data Exchange (ETDEWEB)

Lacerda, J de [Junta de Energia Nuclear, Lisbonne (Portugal)

1967-06-15

The technique described for treating uranium ores by natural leaching has been developed as a result of research carried out in Portugal with a view to determining and eliminating the causes of uranium migration in ores stored in the open. With the natural leaching method, which has been successfully applied to primary uranium ores, the ore is piled up on a waterproof surface and sprayed intermittently with mine water. Pyrite and ferrous sulphate are used as solid reagents and are mixed with the ore in amounts averaging 0.4% and 0.2% respectively. Over 70 000 tons of ore with a U{sub 3}O{sub 8} content of between 0.076 and 0.150% have been treated at five natural leaching plants. The average recovery in these operations was between 57.7 and 85.9%. The average cost was US $3.31/lb U{sub 3}O{sub 8}. (author) [French] Le traitement des minerais uraniferes par lixiviation naturelle est le fruit des recherches effectuees au Portugal dans le but de determiner et d'eliminer les causes de la migration de l'uranium contenu dans les minerais emmagasines a ciel ouvert. La methode de lixiviation naturelle, appliquee avec succes aux mineraux primaires d'uranium, consiste essentiellement en l'arrosage intermittent, avec l'eau des mines, du minerai entasse sur des aires impermeabilisees. On utilise comme reactifs solides la pyrite et le sulfate ferreux melanges avec le minerai a raison de 0,4% et 0,2% respectivement en moyenne. Plus de 70 000 t de minerai, dont les teneurs en U{sub 3}O{sub 8} etaient comprises entre 0,076% et 0,150%, ont ete traitees dans cinq installations de lixiviation naturelle ou on a obtenu des recuperations moyennes oscillant entre 57,7% et 85,9%, pour le prix de revient moyen de 3,31 dollars par livre de U{sub 3}O{sub 8}. (author)

Uraniferous minerals - uraninite and derived or related uraniferous minerals; Mineraux uraniferes - uraninite et mineraux uraniferes derives ou associes

Energy Technology Data Exchange (ETDEWEB)

Lebrun, P.; Cesbron, F.; Le Cleac' h, J.M.; Lebocey, J.

2009-07-01

This special issue of 'Mineraux et Fossiles' journal (no.28) proposes a real trip in the uranium world with the exception of the industrial and military applications. The book comprises 6 chapters fully illustrated with figures and photos of minerals dealing with: 1 - a brief history of uranium (including radioactivity); 2 - crystallo-chemistry of some uranium minerals; 3 - uranium minerals with a presentation of the most important species ('remarkable' species); 4 - classification of uranium deposits; 5 - most famous uranium deposits which played an important role in the development of nuclear industry (Jachymov deposit in Czech Republic, Shinkolobwe in Katanga, Oklo in Gabon etc); 6 - uranium usages, in particular in glass and ceramics coloring and in geochronology. (J.S.)

Alteration of uraniferous and native copper concretions in the Permian mudrocks of south Devon, United Kingdom

Energy Technology Data Exchange (ETDEWEB)

Milodowski, A.E.; Styles, M.T.; Horstwood, M.S.A.; Kemp, S.J. [British Geological Survey, Nottingham (United Kingdom)

2002-03-01

very variable, both from one sample to another and from one point on a sample to another. This study largely confirms the observations reported in the pilot study. The alteration of the copper is dominated by copper oxides. This the earliest alteration product observed and comprises principally cuprite (Cu{sub 2}O), with probable minor tenorite (CuO). The cuprite typically forms colloform layers on the copper surface, and localised lobate embayments or corrosion pits that 'eat' more deeply into the copper metal. Microchemical observations reveal evidence for the enrichment of copper in the mudstone matrix immediately adjacent to the altered copper sheets. The copper concentration drops from around 100% in the cuprite rims of the sheets down to around 1 wt % over a distance of about 20 gm from the altered sheets. With increasing distances away from the sheets there is a more gradual decrease in copper concentration over distances of 100-200 {mu}m to the local background level of the host rock - which may be as high as 2-3 wt % in some places but is generally of the order of 0. 1 wt % Cu{sub 2}0. The high copper concentration could be due to redistribution of copper from the corroded sheets. Alternatively, it could represent a diffusive 'halo' of copper enhancement around the original mineralised structure (bedding laminae or fracture) that formed at the same time as the copper sheets. In both cases, the observations indicate that diffusion occurred over distances of only a few hundreds of micro metres in the mudstone or siltstone matrix. The uraniferous 'fish-eye' concretions contain high concentration of uranium within their cores. Most of the uranium is concentrated in the outer edges of the dark vanadium-rich core of the concretion and subsequent concentric bands of vanadium enriched diffusion bands, and associated fin-like structures. Here, it is present largely as uranium silicate and subordinate uraninite (pitchblende), closely

Clay minerals in uraniferous deposit of Imouraren (Tim Mersoi basin, Niger): implications on genesis of deposit and on ore treatment process

International Nuclear Information System (INIS)

Billon, Sophie

2014-01-01

Nigerian uraniferous deposits are located in carboniferous and Jurassic formations of Tim Mersoi basin. AREVA is shareholder of 3 mine sites in this area: SOMAIR and COMINAK, both in exploitation since 1960's and IMOURAREN, 80 km further South, whose exploitation is planned for 2015. Mineralization of Imouraren deposit is included in the fluvial formation of Tchirezrine 2 (Jurassic), composed of channels and flood plains. Facies of channel in-fillings range from coarse sandstones to siltstones, while overflow facies are composed of analcimolites. Secondary mineralogy was acquired during 2 stages: 1- diagenesis, with formation of clay minerals, analcime, secondary quartz and albites, and 2- stage of fluids circulations, which induced alteration of detrital and diagenetic minerals, formation of new phases and uranium deposition. A mineralogical zoning, at the scale of deposit resulted from this alteration. The heterogeneity of Tchirezrine 2, at the level of both facies and mineralogy, is also evidenced during ore treatment, as ore reacts differently depending on its source, with sometimes problems of U recovery. Ore treatment tests showed that analcimes and chlorites were both penalizing minerals, because of 1- the sequestration of U-bearing minerals into analcimes, 2- their dissolution which trends to move away from U solubilization conditions (pH and Eh) and to form numerous sulfates, and 3- problems of percolation. A detection method of analcime-rich ores, based on infrared spectroscopy, was developed in order to optimize ore blending and so to reduce negative effects during ore treatment process. (author)

Hostelería para fines específicos en el aula de E/LE

Directory of Open Access Journals (Sweden)

David Giménez Folqués

2011-01-01

Full Text Available Cuando un alumno extranjero se dispone a estudiar un nuevo idioma, tiene la esperanza de volver a su país sabiendo al menos desenvolverse en los ámbitos más esenciales: en una conversación cotidiana, en el banco, en una entrevista de trabajo o,por qué no, en un restaurante. Así pues, hemos seleccionado la Hostelería para fines específicos en el aula de E/LE como proyecto con el fin de auxiliar al alumno en este campo. Este objetivo lo llevamos a cabo mediante un enfoque por tareas, es decir,adquiriremos las herramientas necesarias antes de emprender la tarea que nos interesa:saber desenvolvernos en un restaurante. Para ello, hemos seleccionado los tiempos verbales y el vocabulario que hemos considerado esenciales para el desarrollo de nuestro objetivo.

Recovery of uranium by chlorination

International Nuclear Information System (INIS)

Komoto, Shigetoshi; Taki, Tomihiro

1988-01-01

The recovery of uranium from uraniferous phosphate by conventional process is generally uneconomic, except that uranium is recovered as a by-product. If an economical process by which uranium is recovered efficiently as a chief product is discovered, uraniferous phosphate will be used effectively as uranium ore. By using chiorination which will be expected to be favorable in comparison with conventional process, the recovery of uranium from uraniferous phosphate has been carried out. The paper describes the reaction machanism and general characteristics of the uranium chiorination, and the research done so for. (author)

Atención del profesorado universitario a estudiantes con necesidades educativas específicas

Directory of Open Access Journals (Sweden)

Pedro Ricardo Álvarez-Pérez

2015-05-01

Full Text Available Esta investigación analiza el rol que desempeña el profesorado en la puesta en práctica de un enfoque inclusivo de la enseñanza y las dificultades que encuentra en su labor educativa y orientadora. Participaron en el estudio una muestra de 111 docentes universitarios, que durante el curso 2012/2013 atendieron a estudiantes con necesidades educativas específicas. Respondieron a un cuestionario estructurado en torno a cuatro dimensiones básicas: 1 información y formación; 2 apoyos y recursos; 3 actuaciones en el aula; 4 actuaciones en las tutorías. Los resultados evidenciaron que el profesorado universitario no está preparado para dar una respuesta educativa adaptada a la diversidad, que demandaba formación en el uso de estrategias y recursos que les permitieran una atención personalizada de todo el alumnado.

Nouvelles Techniques d'Intervention sur la Corrosion des Armatures du Béton Armé

CERN Document Server

Colloca, C

1999-01-01

Les principaux dégâts constatés dans les armatures passives du béton armé sont la corrosion généralisée et la corrosion locale. Ces dégradations sont provoquées soit par la carbonatation du béton soit par le contact avec l'eau pure ou l'eau chargée de chlorures pénétrant dans les pores et dans les fissures de surface. Ce document présente de nouvelles techniques d'intervention, fondées sur d'anciens principes, introduites pour le traitement électrochimique des zones altérées liées aux différentes conditions. La réalcalinisation (dans le cas de béton carbonaté) permet d'augmenter le pH du béton et de rétablir un niveau de basicité garantissant la passivation de l'armature. La désalification (dans le cas de béton entamé par les chlorures) provoque l'élimination des ions chlorure à travers la surface du béton. Les avantages de ces traitements, par rapport aux anciennes techniques, sont appréciables si l'on considère la durée d'exécution et leur coût moins élevé.

El tratamiento de la fobia social específica y generalizada en Europa : un estudio meta-analítico

OpenAIRE

Sánchez Meca, Julio; Rosa Alcázar, Ana Isabel; Olivares Rodríguez, José

2004-01-01

En este trabajo se presentan los resultados de un meta-análisis sobre la eficacia de las intervenciones conductuales en la fobia social específica y generalizada. Se incluyen un total de 15 artículos europeos que cumplieron con los criterios de selección, dando lugar a 35 estudios independientes, sobre los que se calculó la diferencia media tipificada entre el pretest-postest y pretest-seguimiento. El tamaño del efecto medio en la variable fobia social en el po...

Perspectiva histórica de simulación y juego como estrategia docente: de la guerra al aula de lenguas para fines específicos

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Amparo García-Carbonell

2007-04-01

Full Text Available Simulación y juego es una estrategia de formación que comparte los principios que predica el socioconstructivismo y que responde a necesidades específicas de formación del paradigma actual de educación. La consolidación del uso de la simulación o el juego como herramientas docentes es el resultado de una larga trayectoria que culmina con la convergencia entre las teorías de enseñanzaaprendizaje y un enfoque pedagógico más pragmático, basado en la experiencia, que brinda como resultado un aprendizaje más significativo. Este trabajo investiga cómo el carácter puramente lúdico con el que nacen los primeros juegos se transforma en instrumental. Con este objetivo, se hace un recorrido por las diferentes aplicaciones de la simulación y el juego desde sus orígenes, como juegos de guerra y posteriormente juegos de empresa, hasta su afianzamiento como estrategia docente en numerosas disciplinas y actividades de formación. La posibilidad de vivir una experiencia sin riesgos en una situación bajo un escenario real o simulado nutre un enfoque docente basado en “aprender haciendo”. Desde finales de los años cincuenta, estrategias de formación de uso tradicionalmente militar se prodigan entre numerosas disciplinas y entornos específicos de formación, entre las que se incluye el aprendizaje de lenguas para fines específicos.

¿Música? No, gracias. Identificación de individuos con insensibilidad específica a la música

OpenAIRE

Ernest Mas-Herrero; Antoni Rodriguez-Fornells; Robert Zatorre; Josep Marco-Pallarés

2014-01-01

Aunque existe un consenso implícito sobre el hecho de que la mayoría de las personas disfrutan de la música, esta afirmación no se ha demostrado nunca empíricamente. En un estudio reciente, nuestro grupo de investigación ha descrito personas con anhedonia musical específica, es decir, personas sin ningún déficit perceptivo musical y que no sienten placer ante la música, pero tienen una sensibilidad normal ante el resto de estímulos placenteros. Este descubrimiento pone de manifiesto que los d...

El efecto Mateo en niños con dificultades específicas de aprendizaje de las matemáticas

OpenAIRE

Blanco Pérez, Margarita; Bermejo Fernández, Vicente

2009-01-01

En el presente trabajo se intentó determinar si la presencia de Dificultades Específicas de Aprendizaje en Matemáticas (DAM) se asociaba con la caída de las puntuaciones en las pruebas psicométricas empleadas para valorar el Cociente Intelectual (CI) que con el paso de los cursos se observa en estos niños, tal como sostienen algunos autores con las Dificultades en Lectura y Matemáticas. Además, se evaluó si las diferencias en CI se relacionaban con rendimientos matemáticos igualmente diferen...

Nouvelles perspectives dans la littérature brésilienne contemporaine : Vozes-Mulheres et Quantos filhos Natalina teve ? de Conceição Evaristo

OpenAIRE

Champagnat, Pauline

2017-01-01

Cet article se propose d’analyser une des manifestations du féminisme brésilien contemporain dans les oeuvres Vozes-Mulheres (1990) et Quantos filhos Natalina teve ? (2015) de Conceição Evaristo sous le prisme des études de genre et des études post-coloniales. Dans un premier temps, nous questionnerons une nouvelle branche du féminisme brésilien : l’intersectionnalité. Après une brève définition du concept, nous expliquerons de quelle manière il s’insère dans le contexte du féminisme brésilie...

Prueba de campo específica de valoración de la resistencia en tenis: respuesta cardiaca y efectividad técnica en jugadores de competición

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Ernest Baiget

2008-09-01

Full Text Available Aunque la resistencia específica del jugador tiene una influencia directa sobre el rendimiento en el tenis, un deporte intermitente de larga duración, las pruebas utilizadas para valorarla no suelen incluir tareas motrices próximas a situaciones de juego reales y pueden ser consideradas de baja especificidad. El objetivo de este estudio es desarrollar una prueba de campo de valoración de la resistencia específica en tenis (Specific Endurance Tennis Test, SET-Test, analizando el comportamiento de la frecuencia cardiaca (FC y de parámetros de efectividad técnica (ET, con el fin de averiguar una posible relación entre ambos parámetros y de éstos con el rendimiento deportivo en jugadores de competición. Participaron siete tenistas masculinos, a los cuales les fue administrada una prueba triangular, progresiva, continua y de intensidad máxima conducida por una máquina lanzapelotas, durante la cual se registró la FC y, al mismo tiempo, parámetros objetivos de ET (precisión y potencia mediante el cálculo de porcentaje de aciertos y errores. Se observa un punto de deflexión de la FC (PDFC en un 86% de los sujetos estudiados, previo o coincidente con una disminución de la ET (punto de deflexión de la eficiencia técnica, PDET. Estos dos puntos analizados de forma simultánea a lo largo de la prueba se muestran relacionados con el rendimiento competitivo de los jugadores estudiados. Se concluye que la prueba propuesta puede ser un método específico y válido para evaluar la resistencia específica y la condición aeróbica en tenistas, aunque son necesarios más estudios con el fin de confirmar las hipótesis planteadas y la validez externa de la prueba.

Print Culture and the New Maritime Frontier in Rangoon and Penang Culture de l’imprimé et nouvelle frontière maritime à Rangoon et Penang

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Su Lin Lewis

2012-10-01

Full Text Available From the mid-19th century, vast improvements in steamship and communication technology created an interlinked network of port-cities in the Indian Ocean and maritime Asia. Though Rangoon and Penang had starkly different relationships to colonial rule, they shared a lineage as multi-ethnic ports where various communities had existed side-by-side for centuries. The advent of the Victorian era fostered new class and racial divisions between them, yet also created a new feuilleton culture in the port-city with the mushrooming of newspapers, books, and a new reading public. Diverse ethnic and linguistic communities sought platforms to articulate their concerns and inform themselves of the affairs of the world, and their place within it. Burmese in Rangoon, imbued with a renewed sense of cultural pride, absorbed the rising tide of anticolonialism nationalism echoing throughout the world. Penangites transformed their society using the liberal, cosmopolitan tenants of imperial citizenship to make political and cultural claims for a multi-ethnic society. The vibrant, outward-looking atmosphere of the colonial port-city as a node of information and cultural exchange made Penang and Rangoon the intellectual staging grounds for new visions of the nation.À compter du milieu du xixe siècle, d’importantes améliorations dans la navigation à vapeur et les technologies des communications ont créé un réseau de villes portuaires dans l’Océan indien et l’Asie maritime. Même si Rangoon et Penang avaient des relations divergentes avec la puissance coloniale, elles participaient d’un type identique comme ports où cohabitaient depuis des siècles des communautés d’ethnies différentes. L’ère victorienne conduisit à de nouvelles divisions sociales et ethniques, mais suscita dans la ville portuaire une nouvelle culture littéraire avec le foisonnement des journaux, des livres et un nouveau lectorat. Les communautés ethniques et linguistiques �

New methods and applications in emission spectroscopy (1960); Methodes et applications nouvelles en spectroscopie d'emission (1960)

Energy Technology Data Exchange (ETDEWEB)

Baudin, G [Commissariat a l' Energie Atomique, Grenoble (France).Centre d' Etudes Nucleaires

1960-07-01

Emission spectroscopy, are already well-established instrumental analytical technique, has in recent years known important developments. Two mains factors are responsible; firstly the demands of metallurgy for purer and purer materials or alloys which are increasingly complex and difficult to analyse by chemical means; secondly, progress in optics, especially in the production of gratings, and in electronics in the field of photomultiplier tubes. We will not here catalogue all the new applications and methods, but we will consider a few amongst the most representative outside the conventional field. (author) [French] La spectroscopie d'emission, technique analytique instrumentale deja ancienne, a pris, depuis quelques annees, une extension notable. Deux facteurs principaux ont contribue a ce succes: d'une part, l'exigence de la metallurgie en materiaux de plus en plus pur ou en alliages de plus en plus complexes, difficiles a analyser chimiquement, d'autre part, les progres realises en optique, principalement dans la fabrication des reseaux, et en electronique dans le domaine des tubes photomultiplicateurs. Nous ne ferons pas ici le recensement de toutes les applications ou methodes nouvelles, mais nous en choisirons quelques unes des plus representatives hors du domaine classique. (auteur)

Gestion par projets et risques pour la santé psychologique au travail dans la nouvelle économie

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Marie-Josée Legault

2006-05-01

Full Text Available Y a-t-il des problèmes de santé mentale propres au travail dans la nouvelle économie ? Quoiqu’on puisse constater que le modèle de demande psychologique - autonomie décisionnelle de Karasek et Theorell- trouve aussi son application dans les milieux de travail qui empruntent cette forme, on observe, en fait, des formes particulières de ces facteurs dans la forme d’organisation du travail propre à la gestion par projets. Assimilables à « l’hypersollicitation par le client » comme il a été repéré par Christophe Dejours, ces formes ont été observées lors d’une enquête menée récemment sur la conciliation entre la vie privée et la vie professionnelle dans sept organisations montréalaises. La recherche qualitative a recueilli en tout le discours de 88 répondants distribués également selon le sexe et exerçant des fonctions liées au génie informatique. Ces observations permettent d’envisager une nuance au modèle théorique de la santé mentale ci-haut mentionné, visant à tenir compte des effets délétères d’une très grande latitude décisionnelle assortie de très grandes responsabilités chez des travailleurs hautement qualifiés.Are there distinct mental health problems among workers in the new economy? Although we may observe that the psychological demand - decision latitude model of Karakek and Theorell is appropriate and also finds its application in this type of workplace, we also notice some particular forms that these factors take in the management-by-project work organization model. Akin to the so-called "client’s hyper-demanding activity" as identified by Christophe Dejours, these forms were observed during a recent field study about balancing work and family in seven Montreal organizations. The qualitative study collected data from 88 individual interviews of information technology engineers, evenly distributed by gender. These observations allow a nuance of the above-mentioned theoretical

¿Música? No, gracias. Identificación de individuos con insensibilidad específica a la música

Directory of Open Access Journals (Sweden)

Ernest Mas-Herrero

2014-10-01

Full Text Available Aunque existe un consenso implícito sobre el hecho de que la mayoría de las personas disfrutan de la música, esta afirmación no se ha demostrado nunca empíricamente. En un estudio reciente, nuestro grupo de investigación ha descrito personas con anhedonia musical específica, es decir, personas sin ningún déficit perceptivo musical y que no sienten placer ante la música, pero tienen una sensibilidad normal ante el resto de estímulos placenteros. Este descubrimiento pone de manifiesto que los diversos estímulos reforzadores pueden tener diferentes accesos al sistema de recompensa.

Les nouvelles perspectives d'analyse spatiale des nuisances sonores. Le projet SIGAUR (Système d'Information Géographique et Acoustique URbaine

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Erwan Quesseveur

1999-06-01

Full Text Available Ce rapport présente un projet de recherche sur l’intégration d’une couche d’information de nuisances acoustiques dans un système d’information géographique.Après un développement sur l’état de la pollution et des moyens aujourd’hui en vigueur pour la combattre, on va montrer les nouvelles perspectives offertes pour l’analyse spatiale du bruit. En confrontant cette nuisance aux enjeux du territoire, elle peut devenir un véritable critère de décision en aménagement du territoire.Ce projet résulte d’une collaboration entre le Centre Scientifique et Technique du Bâtiment C.S.T.B. et l’équipe " S.I.G. " de l'Institut de Géographie Alpine (IGA

The Importance of the Idealist Discourse in Defence of American Foreign Policy Initiatives: beyond rhetoric towards a new form of imperialism L’importance du discours idéaliste pour défendre la politique étrangère américaine : vers une nouvelle forme d’impérialisme

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Andrew Ives

2009-10-01

Full Text Available Les États-Unis font rarement appel à un discours basé sur la défense de leurs propres intérêts nationaux pour défendre sa politique étrangère. Dans leur discours officiel, ils tentent plutôt de subordonner l’intérêt national aux objectifs plus nobles de défendre les droits de l’homme ou la démocratie. Cet article commence par retracer les origines de ce discours idéaliste américain. Puis, il tente d’analyser le rôle important joué par ce discours, suggérant qu’il est révélateur d’une nouvelle forme d’impérialisme. Elle est nouvelle dans la mesure où l’État-nation dominant se présente comme l’incarnation de la démocratie libérale faisant en sorte que ses propres intérêts coïncident avec ceux de la démocratie libérale. Le discours idéaliste serait, selon l’auteur, non pas une façade, mais plutôt un élément essentiel d’une nouvelle forme d’impérialisme car la relation étroite qui s’établit entre démocratie libérale et interventionnisme américain renforcerait les intérêts du capitalisme moderne.  

Method of uranium prospecting in a mining division: development and results; La methode de prospection de l'uranium dans une division miniere: sa mise au point - ses resultats

Energy Technology Data Exchange (ETDEWEB)

Carrat, G. [Commissariat a l' energie atomique et aux energies alternatives - Service des Recherches a la Division Grury CEA (France)

1959-07-01

'expose des diverses techniques qui se relaient pour aboutir aux travaux miniers et a l'individualisation d'un tonnage d'uranium exploitable, est presente l'aspect synthetique de l'operation realisee depuis douze annees. La methode de prospection a fait l'objet de modifications profondes depuis le debut des travaux. Au cours des annees, elle a evolue en fonction de la connaissance progressivement acquise du mode de gisement des indices et des gisements uraniferes. En outre, elle s'est diversifiee en adaptant au terrain la merveilleuse technique nouvelle que nous appelons la radiometrie ou etude des radioactivites superficielles. Elle a egalement utilise un certain nombre de techniques geophysiques ou geochimiques, realisant ainsi sur le terrain une gamme de travaux qui permettent une reconnaissance poussee du sous-sol avant le debut des travaux miniers. Mais a aucun moment elle n'a songe a abandonner la conception classique et fondamentale du leve geologique de terrain au marteau et a la boussole. Dans ce domaine, elle a tente de tirer parti des enseignements fournis par un leve geomorphologique et tectonique precis. La plupart de ces travaux ont ete effectues sur les terrains granitiques du Morvan et les gisements qui sont consideres dans cette etude sont tous typiquement hydrothermaux. Reproduction d'un article publie dans 'Annales des Mines', Mars 1959.

Alteration of uraniferous and native copper concretions in the Permian mudrocks of south Devon, United Kingdom

International Nuclear Information System (INIS)

Milodowski, A.E.; Styles, M.T.; Horstwood, M.S.A.; Kemp, S.J.

2002-03-01

very variable, both from one sample to another and from one point on a sample to another. This study largely confirms the observations reported in the pilot study. The alteration of the copper is dominated by copper oxides. This the earliest alteration product observed and comprises principally cuprite (Cu 2 O), with probable minor tenorite (CuO). The cuprite typically forms colloform layers on the copper surface, and localised lobate embayments or corrosion pits that 'eat' more deeply into the copper metal. Microchemical observations reveal evidence for the enrichment of copper in the mudstone matrix immediately adjacent to the altered copper sheets. The copper concentration drops from around 100% in the cuprite rims of the sheets down to around 1 wt % over a distance of about 20 gm from the altered sheets. With increasing distances away from the sheets there is a more gradual decrease in copper concentration over distances of 100-200 μm to the local background level of the host rock - which may be as high as 2-3 wt % in some places but is generally of the order of 0. 1 wt % Cu 2 0. The high copper concentration could be due to redistribution of copper from the corroded sheets. Alternatively, it could represent a diffusive 'halo' of copper enhancement around the original mineralised structure (bedding laminae or fracture) that formed at the same time as the copper sheets. In both cases, the observations indicate that diffusion occurred over distances of only a few hundreds of micro metres in the mudstone or siltstone matrix. The uraniferous 'fish-eye' concretions contain high concentration of uranium within their cores. Most of the uranium is concentrated in the outer edges of the dark vanadium-rich core of the concretion and subsequent concentric bands of vanadium enriched diffusion bands, and associated fin-like structures. Here, it is present largely as uranium silicate and subordinate uraninite (pitchblende), closely associated with copper, nickel and cobalt

IMPACT DE L’ORIENTATION SUR LE CONFORT THERMIQUE INTERIEUR DANS L’HABITATION COLLECTIVE : Cas de la nouvelle ville Ali Mendjeli, Constantine

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S BELLARA LOUAFI

2009-06-01

Une étude est effectuée sur le site de la nouvelle ville ALI MENDJELI de Constantine afin de comparer et de chercher la relation entre les éléments du climat et l’orientation. Une investigation sur terrain (relevé des températures, humidité relatives, températures de surfaces est entreprise pour évaluer la réponse quantitative globale pour ce type de climat (semi aride. Parallèlement à cela une simulation à l’aide d’un logiciel TRNSYS (version 14.1 a été effectuée pour tester plusieurs possibilités d’orientations et d’améliorations afin de déterminer les éléments qui peuvent servir à des conditions meilleures. Les résultats montrent que la prise en compte du critère orientation fait participer le bâtiment à une conception plus performante thermiquement et plus économe énergétiquement.

La « Nouvelle Mosquée » d’Alger. Le déroulement d’une procédure constructive au xviie siècle

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Samia Chergui

2012-01-01

Full Text Available « La Nouvelle Mosquée » est érigée, à la fin du xviie siècle, dans la seule perspective de doter le rite hanéfite de sa propre Grande Mosquée. Cette nouvelle édification relève, à l’évidence, d’une procédure collective exceptionnelle, celle qu’entreprend la milice d’Alger, en l’occurrence le corps des janissaires, en puisant dans les fonds des Subul al-Khayrât. L’examen du livre de comptes qu’avait tenu cette institution ḥabûs, responsable de la gestion de la plupart des mosquées hanéfites et de leurs awqâf, aussitôt après le lancement du chantier, a permis de suivre le déroulement des travaux sur une période de presque dix années, soit de 1067/1656-1657 à 1076/1665-1666. Ce rôle de chantier apporte des éclairages significatifs notamment sur la nature, la provenance, la quantité et le coût des matériaux employés à la construction. Ils ne manquent pas non plus de documenter les aspects concernant leur fabrication, voire leur préparation, et quelque rares fois leur mise en œuvre ; une mise en œuvre qui, ici, revient à la dextérité de nombreux hommes, mobilisés dans le cadre corporatif. La comptabilité salariale, tenue en cette occasion, compte d’ailleurs parmi les rares initiatives de gestion qui ont permis, durant au moins une décennie, de consigner les plus amples détails non seulement sur le profil distinctif de l’ensemble de ces intervenants, mais également sur leur origine géographique, voire confessionnelle.

Técnica para aislamiento de bacteriófagos específicos para E.coli DH5α a partir de aguas residuales

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Gabriel Gaviria A.

2012-04-01

Full Text Available Objetivo. Establecer una técnica para el aislamiento de bacteriófagos a partir de aguas residuales específicos para E. coli DH5α. Materiales y métodos. Se tomó como base el método 1601 de la Agencia de Protección Ambiental de los Estados Unidos de América y un método de obtención de enterovirus a partir de aguas residuales. En el desarrollo del protocolo se realizaron múltiples pruebas utilizando como control positivo el bacteriófago T4 y los aislamientos de bacteriófagos obtenidos a partir de aguas residuales. Resultados. Se observó la formación de unidades formadoras de placa (UFP, se obtuvó la titulación de los bacteriófagos presentes en cada uno de los cultivos de E.coli DH5α, se determinaron las relaciones que existen entre la cuantificación de la formación de unidades formadoras de placa (UFP del tratamiento control y el tratamiento experimental y las respectivas características de las (UFP en cada uno de los experimentos realizados. Conclusiones. Se logró establecer un protocolo microbiológico para el aislamiento de bacteriófagos específicos para E. coli DH5α.

Producción de café (Coffea arabica L. en respuesta al manejo específico de la fertilidad del suelo

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Luz Adriana Lince Salazar

2015-12-01

Full Text Available El estudio de la variabilidad espacial es el principal insumo para el manejo específico por sitio-MES, con fines de optimizar los recursos, al reducir los costos de producción de los cultivos y el impacto negativo sobre el ambiente. Con el objetivo de determinar el efecto del MES en la producción del café, durante los años 2011 y 2012 se realizó un experimento del manejo de la fertilidad del suelo en café (Coffea arabica L., Variedad Castillo® en lotes con áreas diferentes (1,0, 2,0 y 3,5 ha, ubicados en tres fincas del departamento del Quindío, Colombia. Se evaluó el efecto de tres tratamientos en la producción de café cereza: i testigo sin fertilización; ii manejo de acuerdo a los resultados de los análisis de suelo, logrados mediante un muestreo convencional en zigzag y, iii manejo por sitio específico conforme lo indicaron las áreas homogéneas, obtenidas mediante mapas de variabilidad espacial. En ninguno de los lotes hubo efecto de los tratamientos, respuesta que se relacionó con uno o más de los siguientes factores: tiempo relativamente corto de evaluación, fertilidad del suelo, reservas de los nutrientes en las plantas, y el número reducido de repeticiones (tres por tratamiento.

Modelado específico de procedimientos en el dominio de la Administración Electrónica

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Aquilino Adolfo Juan Fuente

2012-06-01

Full Text Available Debido a la complejidad que reviste el dominio de la Administración Electrónica (AE, las desarrolladas deberán ser capaces de integrarse con la multitud de plataformas y sistemas que componen dicho dominio. El impacto de esta integración además mejorar la tramitación de procedimientos. En el presente trabajo se propone un lenguaje de modelado gráfico (DSL para la tramitación de procedimientos en el dominio específico de la AE. Este lenguaje parte de la definición de un metamodelo de AE que identifica sus principales entidades y define sus relaciones. Además se construyó una herramienta gráfica de modelado la cual fue probada con dos casos de estudio reales.

Uraniferous preconcentrations

International Nuclear Information System (INIS)

Pagel, M.

1983-01-01

Models applied to discordance deposit genesis are generally based on superficial or deep leaching of uranium rich metamorphic, granitic or sedimentary rocks. Available data on Saskatchewan North East Australia are compared. They are essentially on geochemistry and accurate mineralogic data are needed [fr

A new method for dosing uranium in biological media; Nouvelle methode de dosage de l'uranium dans les milieux biologiques

Energy Technology Data Exchange (ETDEWEB)

Henry, Ph; Kobisch, Ch [Commissariat a l' Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d' Etudes Nucleaires

1964-07-01

This report describes a new method for dosing uranium in biological media based on measurement of alpha activity. After treatment of the sample with a mineral acid, the uranium is reduced to the valency four by trivalent titanium and is precipitated as phosphate in acid solution. The uranium is then separated from the titanium by precipitation as UF{sub 4} with lanthanum as carrier. A slight modification, unnecessary in the case of routine analyses, makes it possible to eliminate other possible alpha emitters (thorium and transuranic elements). (authors) [French] Ce rapport decrit une nouvelle methode de dosage de l'uranium dans les milieux biologiques par mesure de l'activite alpha. Apres mineralisation de l'echantillon, l'uranium est reduit a la valence IV par le titane trivalent et precipite en milieu acide sous forme de phosphate. L'uranium est ensuite separe du titane par precipitation a l'etat d'UF{sub 4} avec du lanthane entraineur. Une legere modification, inutile dans le cas d'analyses de routine, permet d'effectuer l'elimination d'autres emetteurs alpha eventuels (thorium et transuraniens). (auteurs)

Le commerce transnational « informel », vecteur d’une nouvelle hiérarchie de lieux. L’exemple de la périphérie urbaine de Salé (Maroc)

OpenAIRE

Bennafla, Karine

2016-01-01

Cet article examine les implications spatiales du commerce transnational dans les pays intermédiaires tel le Maroc. Si l’accentuation des réformes néo-libérales entraîne l’ouverture de grandes surfaces, de magasins franchisés ou de malls, elle ne signe pas la fin du commerce « informel », tout aussi globalisé. La nouvelle hiérarchisation de lieux sous l’effet du commerce transnational est peu abordée dans la littérature sur le commerce informel marocain. L’exemple d’une centralité marchande i...

Tratamiento con inmunoterapia específica en niños con Rinitis Alérgica y/o Asma Bronquial. Área Norte. 2005 - 2007.

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Matilde Iraida Morera Franco

2007-10-01

Full Text Available Se realizó un estudio descriptivo longitudinal durante el período Enero 2005_ Enero 2007 en el Policlínico Norte del municipio Sancti Spíritus. El universo estuvo constituido por el total de niños con edades de 2_15 años con enfermedades alérgicas, a los que se realizó pruebas de alergia e indicó tratamiento con inmunoterapia específica por vía subcutánea, la muestra estuvo formada por 75 pacientes con asma bronquial, rinitis alérgica y/o ambas enfermedades, con el objetivo de determinar el comportamiento del tratamiento con inmunoterapia específica se aplicó el método porcentual para el análisis de resultados, donde el grupo etáreo que predominó fue de 2 _5 años, más del 65 % de los pacientes tratados refirieron mejoría de los síntomas las causas más frecuentes de abandono de tratamiento fue la aparición de infecciones intercurrentes, no ocurrió reacción anafiláctica en ninguno de los casos estudiados, el tratamiento con inmunoterapia puede reducir el uso de otros tratamientos asociados como Intal, antihistamínicos, broncodilatadores y esteroides.

Sensibilidade espécie-específica aos anti-inflamatórios não esteroidais: humanos X animais de companhia

Directory of Open Access Journals (Sweden)

E. Riboldi

2012-02-01

Full Text Available Este estudo forneceu subsídios para o melhor entendimento das intoxicações pelos anti-inflamatórios não esteroidais (AINES em humanos e animais de companhia. Os principais focos foram a diferença espécie-específica e os serviços prestados por Centros de Informação Toxicológica. Para tanto, foram utilizados dados referentes às intoxicações por AINES em pessoas, cães e gatos reportadas ao CIT/RS entre 2005 e 2009. Além disso, foram abordados, comparativamente, os dados do American Association of Poison Centers (AAPCC entre 2004 e 2008, bem como as referências na literatura acerca da sensibilidade espécie-específica. Constatou-se que a maioria das intoxicações por AINES, independentemente da espécie, abrangeu o cetoprofeno, o ibuprofeno e o diclofenaco, sendo 54% destes intencionais em humanos, destacando-se o diclofenaco. Em se tratando de animais de companhia, 73% das intoxicações em cães ocorreram pelo diclofenaco, e 60% dos acidentes em gatos foram ocasionados pelo ibuprofeno. Chama-se a atenção para a importância dos Centros de Informação Toxicológica como forma de assistência e prevenção desses acidentes, bem como para a venda indiscriminada desses fármacos, aliados à medicação extraprescrição - que leva, na maioria das vezes, cães e gatos ao óbito.

Educación física en los libros de texto escolares anteriores al franquismo (II) : cartillas y manuales específicos

OpenAIRE

Galera, Antonio D.

2017-01-01

Las obras específicas para la Educación Física escolar anteriores a 1939 recomiendan como principales contenidos los juegos y la gimnasia educativa y en menor medida los paseos y excursiones, y el canto y la música; encontramos asimismo un aspecto avanzado de interdisciplinariedad: la recomendación de intercalar pausas activas entre materias no corporales, que sería recogida por el plan de 1937 de la República, pero nunca más posteriormente. No existen diferencias señaladas entre obras genera...

Evaluación de la autopercepción del nivel de competencia profesional docente específica en robótica educativa

OpenAIRE

Fernandez Ruiz, Rosanna

2016-01-01

Como consecuencia de la creciente presencia de la robótica educativa en la educación formal, surge la pregunta de si el profesorado, artífice responsable del proceso de aprendizaje, se siente preparado para hacer frente a la incorporación generalizada en el aula de esta temática multidisciplinar. El presente estudio plantea una aproximación a la investigación en este tema; su objetivo principal es evaluar el nivel de autopercepción de las competencias profesionales docentes específicas en rob...

Uranium mineralization in the ring complex of Taperuaba, CE, Brazil

International Nuclear Information System (INIS)

Haddad, R.C.

1981-01-01

The study of the uraniferous deposit in the Northeast has been increased in last year, because of the discovery of many anomalies containing phosphate uraniferous mineralization. The anomalies in vila de Taperuaba at Ceara were examined. The petrografic, structural and geochemical study of the Taperuaba Ring complex, is made, in an attempt to estabilish the ore genesis and its probable controls. (L.H.L.L.) [pt

Aplicación del sistema de recombinación específica de secuencia β-six al estudio de la regulación de la expresión génica en células eucariotas y modelos animales

OpenAIRE

Servert del Río, Pilar

2016-01-01

Las recombinasas específicas de secuencia son herramientas muy valiosas en la generación de modificaciones génicas condicionales. Estos sistemas permiten controlar la recombinación de forma específica de tejido, temporalmente, o ambas, y sortean diversas limitaciones de los sistemas de knockout (KO) convencionales, como la letalidad embrionaria o la generación de mecanismos compensatorios. Actualmente los sistemas Cre/loxP y Flp/FRT son los más empleados tanto en modelos animales como vegetal...

Optimización del flujo de aire específico para la lixiviación estándar QT del mineral reducido en el proceso Caron

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Antonio R. Chang-Cardona

2013-03-01

Full Text Available El propósito del artículo fue fundamentar experimentalmente la optimización del flujo de aire específico, para las condiciones de la prueba QT, a partir del contenido de Fe (II en el mineral reducido, aportado por la medición de los potenciales redox en la pulpa antes de airearla. Se estableció un procedimiento gráfico rápido, efectivo y económico que permite decidir la región óptima de los flujos de aire específicos para iniciar la lixiviación de la prueba QT y se demuestra la ventaja técnico-económica de utilizar valores del flujo de aire entre 1,3 y 1,8 m3/(t∙min, según varíe el contenido de Fe (II en el mineral reducido, con los que se garantizan máximos extractables de cobalto y de níquel. Se obtuvieron, además, los modelos empíricos (regresión polinómica de segundo orden que permiten predecir los extractables máximos de ambos metales bajo las condiciones experimentales estudiadas

Trastorno del espectro autista y trastorno específico del lenguaje ¿Dos entidades diferentes o un continuo de manifestaciones neuropsicológicas?

OpenAIRE

Newra Tellechea Rotta

2013-01-01

El estudio de los niños con retraso en el desarrollo del lenguaje amerita un gran conocimiento del desarrollo neurológico típico; muchas veces, niños con retraso del lenguaje pueden presentar dificultades sociales y conductuales y puede ser difícil, en especial en etapas tempranas, diferenciar entre trastorno del espectro autista (TEA) y trastorno específico del lenguaje (TEL). Justamente por ello, teniendo en cuenta que muchas veces comparten síntomas comunes se ha postulado que estos trasto...

Técnicas de utilização de dicionário como material didático na aula de LE para fins específicos

Directory of Open Access Journals (Sweden)

Camila Höfling

2006-01-01

Full Text Available Este artigo apresenta uma metodologia de trabalho relacionado ao uso do dicionário como material didático na aula de língua estrangeira com fins específicos, em atividades como desenvolvimento de vocabulário, gramática, pronúncia, uso de língua, cultura, leitura e interpretação de texto. Com certas técnicas, os professores podem aproveitar esse material em suas aulas e orientar seus alunos sobre qual dicionário adquirir e como empregá-lo de maneira eficiente. Oferecemos algumas sugestões de atividades para serem realizadas com o dicionário, seja em aulas para alunos particulares ou em cursos profissionalizantes em áreas específicas.This paper presents a methodology related to the use of dictionary as a pedagogic resource in the foreign language for specific purposes class, in activities developing vocabulary, grammar, pronunciation, language use, culture, and reading comprehension. By using some techniques, teachers can benefit from this resource in class and instruct their students about how to choose and use a dictionary properly. We offer some suggestions of activities to be performed both in private classes (one-to-one and with groups of professionals with specific purposes.

Producción de café (Coffea Arabica L. en respuesta al manejo específico por sitio de la fertilidad del suelo

Directory of Open Access Journals (Sweden)

Luz Adriana Lince Salazar

2016-12-01

Full Text Available El estudio de la variabilidad espacial es el principal insumo para el manejo específico por sitio MES, con el fin de optimizar los recursos, al reducir los costos de producción de los cultivos y el impacto negativo sobre el ambiente. Con el objetivo de determinar el efecto del MES en la producción del café, durante los años 2011 y 2012 se realizó un experimento del manejo de la fertilidad del suelo en café (Coffea arabica L., Variedad Castillo® en lotes con áreas diferentes (1,0, 2,0 y 3,5 ha, ubicados en tres fincas del departamento del Quindío, Colombia. Se evaluó el efecto de tres tratamientos en la producción de café cereza: i testigo sin fertilización; ii manejo de acuerdo a los resultados de los análisis de suelo, logrados mediante un muestreo convencional en zigzag y, iii manejo por sitio específico conforme lo indicaron las áreas homogéneas, obtenidas mediante mapas de variabilidad espacial. En ninguno de los lotes hubo efecto de los tratamientos, respuesta que se relacionó con uno o más de los siguientes factores: tiempo relativamente corto de evaluación, fertilidad del suelo, reservas de los nutrientes en las plantas, y el número reducido de repeticiones (tres por tratamiento.

Propuesta de Intervención en el Trastorno Específico del Lenguaje en una Unidad de Educación Especial

OpenAIRE

Fumanal-Solé, Anna

2015-01-01

El presente trabajo fin de grado plantea una propuesta de intervención adaptada a un niño con Trastorno Específico del Lenguaje que se encuentra en una escuela ordinaria dentro de una Unidad de Educación Especial. Cada vez más nos encontramos en las aulas ordinarias con niños con este tipo de trastorno y la mayoría de las veces no se sabe cómo abordar esta situación. Los profesores, no tienen la suficiente información y/o formación para poder ayudar a estos niños a obtener un aprendizaje ó...

Metodología del entrenamiento de la resistencia específica en el tenis de competición. Revisión y propuesta

OpenAIRE

Baiget i Vidal, Ernest

2011-01-01

El principal objetivo del entrenamiento de la resistencia en el jugador de tenis de competición es mejorar la habilidad para realizar ejercicios de alta intensidad de manera repetida, recuperarse rápidamente de los esfuerzos y mantener dicha intensidad durante el juego, evitando o retardando de esta manera la aparición de la fatiga. Para el desarrollo de los sistemas energéticos específicos, el jugador debe dirigir los entrenamientos al desarrollo de las vías energéticas y patrones de movimie...

Presença de auto-anticorpos não-tireóide-específicos no soro de pacientes com hipotireoidismo auto-imune

OpenAIRE

Soares Débora Vieira; Vanderborght Bart O. M.; Vaisman Mário

2003-01-01

Auto-anticorpos contra componentes não-específicos da tireóide foram encontrados no soro de pacientes com doença auto-imune da tireóide. Neste estudo avaliamos a presença de auto-anticorpos antinucleares (ANA), antimúsculo liso (anti-ML) e antimitocôndria (anti-Mc) no soro de pacientes com hipotireoidismo auto-imune (HA), comparando-os a controles saudáveis. Estudamos 70 pacientes com hipotireoidismo auto-imune (tireoidite de Hashimoto ou tireoidite atrófica ) e 70 controles saudáveis (sem di...

Formación en género en la universidad: ¿materia de asignaturas específicas o de educación transversal?

OpenAIRE

Asián-Chaves, Rosario; Cabeza Verdugo, Francisca; Rodríguez Sosa, Vicente

2015-01-01

En este artículo se debaten los diferentes resultados de recibir una formación mediante asignaturas específicas o de forma transversal. La persistencia de estereotipos de género y la división sexual del trabajo están relacionadas con la falta de concienciación social, debida, entre otros factores, a la falta de formación en cuestiones de género. Esta formación es necesaria para reflexionar y "construir" los mensajes sobre género para develar las premisas ideológicas y...

« Société de l'information », deuxième époque ? Transformation du statut de l'usage des TIC au travers des nouvelles propriétés des objets communicants

OpenAIRE

Weygand, Félix

2007-01-01

Notre contribution présente brièvement ce qu'on décrit actuellement comme de nouvelles ruptures techniques en cours dans les TIC. Il s'agira d'une part de repérer les « effets de mode » contenus dans ces descriptions, qui reprennent des appréhensions ou des enthousiasmes récurrents dès que l'on est confronté à des ruptures techniques, d'autre part de s'interroger sur la pertinence de nos outils d'analyse des innovations face à ces éventuelles ruptures. En effet, indépendamment de l'opinion op...

Comparação dos efeitos da estimulação elétrica nervosa transcutânea em pacientes com lombalgia crônica não específica: ensaio clínico randomizado

OpenAIRE

Facci, Ligia Maria [UNIFESP

2007-01-01

Introdução: Os equipamentos de eletroterapia mais utilizados no tratamento da lombalgia crônica não-específica são a Estimulação Elétrica Nervosa Transcutânea (TENS) e a Corrente Interferencial (CI). Ainda são escassas, porém, as evidências que justifiquem a sua utilização na prática clínica. Objetivos: O objetivo deste estudo foi comparar os efeitos da Estimulação Elétrica Transcutânea (TENS) com os da Corrente Interferencial (CI) em pacientes com lombalgia crônica não-específica. Métodos: C...

Distúrbio Específico de Linguagem: Caracterização Neuropsicológica

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Sandra Coelho

2013-04-01

Full Text Available O presente estudo pretende caracterizar o funcionamento neuropsicológico de crianças com Distúrbio Específico de Linguagem (DEL nas áreas da memória visual e verbal, atenção/funções executivas e funções visuopercetivas. A amostra é constituída por 28 crianças com DEL e 28 crianças sem DEL, sendo ambos os grupos equiparáveis em termos de idade, género, ano de escolaridade e nível socioeconómico. Para o efeito, recorreu-se a testes da Bateria de Avaliação Neuropsicológica de Coimbra e os dados foram analisados através de testes estatísticos paramétricos e não paramétricos. De um modo geral, os resultados obtidos diferenciam os desempenhos das crianças com DEL dos observados em crianças sem DEL. Em concreto, e comparativamente ao grupo de controlo, o grupo de crianças com DEL apresentou resultados significativamente inferiores na memória visual e memória verbal, na atenção seletiva e sustentada, nas funções executivas, na fluência verbal semântica, nas funções visuopercetivas e na velocidade de processamento.

Teoría de situación específica de autotrascendencia en dependientes del alcohol en proceso de recuperación

OpenAIRE

Linda Azucena Rodríguez-Puente; María Magdalena Alonso-Castillo

2016-01-01

La creación de modelos y teorías de enfermería, enfocadas en fenómenos específicos, contribuye a la práctica y el desarrollo de la dis-ciplina de enfermería.Objetivo:presentar una derivación teórica y proponer un modelo sobre la teoría de autotrascendencia en personasdependientes del alcohol en proceso de recuperación.Materiales y métodos:se realizó una derivación teórica mediante la metodologíapropuesta por Walker y Avant.Resultados:adaptación del Modelo de Autotrascendencia en personas depe...

Teoría de situación específica de autotrascendencia en dependientes del alcohol en proceso de recuperación

OpenAIRE

Rodríguez-Puente, Linda Azucena; Alonso-Castillo, María Magdalena

2016-01-01

La creación de modelos y teorías de enfermería, enfocadas en fenómenos específicos, contribuye a la práctica y el desarrollo de la disciplina de enfermería. Objetivo: presentar una derivación teórica y proponer un modelo sobre la teoría de autotrascendencia en personas dependientes del alcohol en proceso de recuperación. Materiales y métodos: se realizó una derivación teórica mediante la metodología propuesta por Walker y Avant. Resultados: adaptación del Modelo de Autotrascendencia en person...

Modelo de gestión para cambio de plataforma tecnológica en entidades financieras.Caso específico Banco mediano del sector comercial

OpenAIRE

Sinmaleza Ramírez, Geoconda

2014-01-01

176 hojas : ilustraciones, 29 x 21 cm + CD-ROM 2163 La presente tesis corresponde a la implementación del Modelo de Gestión para el cambio de plataforma tecnológica en entidades financieras. Caso específico Banco mediano del sector comercial. El Banco en Análisis es una institución del sistema financiero nacional, clasificada por la Superintendencia de Bancos como un Banco mediano del segmento comercial, el mismo mantiene una alianza estratégica con un Banco de Alianza del sistema fina...

Caracterización neuropsicológica en niños con diagnóstico de trastorno específico de aprendizaje en Cali, Colombia

OpenAIRE

María Cristina Quijano Martínez; Mónica Aponte Henao; Diana María Alejandra Suarez García; María Teresa Cuervo Cuesta

2013-01-01

El objetivo de este estudio fue comparar las funciones cognitivas en niños con antecedente de Trastorno Específico de Aprendizaje (TEA) en colegios privados de la ciudad de Cali, Colombia con un grupo control (GC). La muestra estuvo conformada por 37 sujetos con TEA y 28 sujetos en el grupo control (GC), de estrato socioeco- nómico medio-alto. La edad promedio fue de 9 años y la escolaridad de 4°. Los instrumentos utilizados para selección de los grupos fueron el Cuestionario de problemas de...

Isotopic exchange between molecular hydrogen and liquid ammonia catalysed by alkali amides; Echange isotopique entre l'hydrogene moleculaire et l'ammoniac liquide catalyse par les amidures alcalins

Energy Technology Data Exchange (ETDEWEB)

Delmas, R [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1968-06-15

The catalytic action of alkali amides on the isotopic exchange between hydrogen and liquid ammonia has been reinvestigated. It was clear before this work that the reaction is homogeneous and first order with respect to the concentration of dissolved hydrogen, but the nature of the catalytic species was still subject to discussion. On one hand new precise kinetic measurements have been made with sodium, potassium, rubidium and cesium amide. On the other hand, the dissociation of these salts has been calculated with the help of the FUOSS-ONSAGER equation. If the rate of exchange is plotted as a function of the concentration of the free amide ion, a linear relationship is obtained. In our experimental conditions, primary salt effects are negligible and the concentration has to be used in the rate equations. This shows that only the free amide ion is acting as a catalytic species. Experiments on common ion effects and secondary salt effects support this conclusion. The results are in agreement with an associative mechanism. (author) [French] Une nouvelle etude de l'echange isotopique entre l'hydrogene et l'ammoniac liquide catalyse par les amidures alcalins a ete effectuee. II etait bien etabli avant le present travail que la reaction etait homogene et que sa vitesse etait du premier ordre par rapport a la concentration d'hydrogene dissous, mais la nature de l'espece catalytique etait encore controversee. De nouvelles mesures cinetiques precises ont ete faites avec les amidures de sodium, de potassium, de rubidium et de cesium. D'autre part, la dissociation de ces sels a ete calculee a l'aide de l'equation de FUOSS-ONSAGER. On constate que la vitesse d'echange est proportionnelle a la concentration de l'ion amidure libre. Dans nos conditions experimentales, les effets de sel primaires sont negligeables, l'equation de vitesse doit s'exprimer simplement en fonction des concentrations. Ceci indique que l'ion amidure libre est la seule espece catalytique. Des experiences d

Nematodes parasites de quatre especes de Carangoides (Osteichthyes: Carangidae) des eaux de Nouvelle-Caledonie, avec description de Philometra dispar n. sp. (Philometridae)

Czech Academy of Sciences Publication Activity Database

Moravec, František; Gey, D.; Justine, J.-L.

2016-01-01

Roč. 23, Sep 12 (2016), č. článku 40. ISSN 1252-607X R&D Projects: GA ČR(CZ) GBP505/12/G112 Institutional support: RVO:60077344 Keywords : parasitic nematode * new species * marine fish * New Caledonia * South Pacific Subject RIV: EG - Zoology Impact factor: 2.545, year: 2016

Análisis de la condición física en jóvenes jugadores de fútbol en función de la categoría de formación y del puesto específico

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Fernando Calahorro Cañada

2012-09-01

Full Text Available El objetivo principal de este trabajo es valorar el nivel de condición física en jugadores de 13 a 18 años, determinando posibles diferencias respecto a la categoría de formación (infantil, cadete y juvenil y el puesto específico (porteros, defensas, centrocampistas, delanteros. Se seleccionaron 66 jugadores (con una edad de 15,46 ± 1,83 años, una masa de 63,33 ± 9,51 kg, una estatura de 171,44 ± 8,38 cm y una experiencia previa competitiva de 9,16 ± 1,93 años. Se determinó la composición corporal (INBODY 720, flexibilidad isquiosural (test sit and reach, salto con contramovimiento y abalakov (plataforma nusclelab 4000, y consumo máximo de oxígeno (test de course navette. Se observan diferencias por puesto específico y categoría de formación en la composición corporal y condición física (infantiles respecto cadetes y juveniles, y se observan diferencias fundamentalmente entre los puestos específicos de defensas cadetes respecto a los juveniles, y entre el puesto especifico de categoría infantil respecto al resto.

IFP Energies nouvelles. 2016 Activity Report - Innovating for energy

International Nuclear Information System (INIS)

2017-01-01

IFP Energies Nouvelles is a major research and training player in the fields of energy, transport and the environment. From research to industry, technological innovation is central to all its activities, structured around three strategic priorities: sustainable mobility, new energies and responsible oil and gas. As part of the public-interest mission with which it has been tasked by the public authorities, IFPEN focuses on: - providing solutions to take up the challenges facing society in terms of energy and the climate, promoting the transition towards sustainable mobility and the emergence of a more diversified energy mix; - creating wealth and jobs by supporting French and European economic activity, and the competitiveness of related industrial sectors. An integral part of IFPEN, its graduate engineering school - IFP School - prepares future generations to take up these challenges. IFPEN has proven expertise across the entire value chain, from fundamental research to innovation. It is funded both by a state budget and by its own resources provided by industrial partners. The latter account for over 50% of IFPEN's total budget, a configuration that is quasi unique in France. The aim of IFPEN's R and I programs is to overcome existing scientific and technological challenges in order to develop innovations that can be used by industry. IFPEN's fundamental research program aims to create a bedrock of knowledge essential for the development of innovations. The scientific expertise of IFPEN's researchers is internationally recognized and they are regularly consulted by the public authorities to provide their insight in their specific fields to inform the decision-making process. IFPEN's economic model is based on the transfer to industry of the technologies developed by its researchers. This technology transfer to industry generates jobs and business, fostering the economic development of fields and approaches related to the mobility, energy and eco-industry sectors

Análisis de la influencia de la razón de transmisión en la velocidad específica de deslizamiento

Directory of Open Access Journals (Sweden)

Orestes González-Quintero

2010-01-01

Full Text Available Las transmisiones por engranajes pueden sufrir múltiples deterioros durante su funcionamiento y entre las fallas más comunes, propia de las transmisiones no lubricadas, se encuentra el desgaste, que se caracteriza por la disminución del espesor del diente en la zona de la cabeza y del pie, que es donde mayor velocidad de deslizamiento existe. En este trabajo se exponen las ecuaciones básicas para el cálculo de las velocidades de deslizamiento, de desplazamiento y específica de deslizamiento, finalmente, utilizando un programa elaborado en una Hoja de Cálculo de Excel y con el auxilio del software AutoCAD fueron evaluados cuatro casos de transmisiones por engranajes cilíndricos de dientes rectos, para determinar la influencia de la relación de transmisión en la velocidad específica de deslizamiento en ruedas dentadas cilíndricas de dientes rectos.Gear transmissions can suffer multiple fails during their operation, being wear one of the most common, this fail is characteristic of the not lubricated transmissions, and it is characterized by the decrease of the thickness of the tooth up and down the tooth height that is where main sliding velocity exists. In this work the essential equations for the calculation of the sliding, displacement and specific sliding velocity, are exposed, finally, using a program elaborated in a EXCEL spreadsheet and with the employment of the software AutoCAD, four cases of spur gear transmissions were evaluated, to determine the influence of the velocity ratio in the specific sliding velocity.

La evaluación específica del síndrome de Burnout en psicólogos: el "inventario de Burnout de psicólogos"

OpenAIRE

ANA MARIA T. BENEVIDES PEREIRA; BERNARDO MORENO-JIMÉNEZ; EVA GARROSA HERNANDEZ; JOSÉ LUIS GONZALEZ GUTIÉRREZ

2002-01-01

La investigación del "burnout" se ha extendido a una amplia variedad de profesiones, asistenciales y no asistenciales, sin embargo el estudio del burnout en psicólogos es relativamente escaso a pesar de ser una profesión con alto riesgo de burnout. El "Inventario de Burnout de Psicólogos" (IBP) es un instrumento elaborado específicamente para evaluar los procesos de burnout en los psicólogos que consta de tres partes: características profesionales, dimensiones del burnout y sintomatología de ...

Tratamiento con inmunoterapia específica en niños con Rinitis Alérgica y/o Asma Bronquial. Área Norte. 2005 - 2007.

OpenAIRE

Matilde Iraida Morera Franco; Rigoberto Antonio García Chang; María Mercedes Gómez Paz

2007-01-01

Se realizó un estudio descriptivo longitudinal durante el período Enero 2005_ Enero 2007 en el Policlínico Norte del municipio Sancti Spíritus. El universo estuvo constituido por el total de niños con edades de 2_15 años con enfermedades alérgicas, a los que se realizó pruebas de alergia e indicó tratamiento con inmunoterapia específica por vía subcutánea, la muestra estuvo formada por 75 pacientes con asma bronquial, rinitis alérgica y/o ambas enfermedades, con el objetivo de determinar ...

Valoración funcional y bioenergética de la resistencia específica en jugadores de tenis

Directory of Open Access Journals (Sweden)

Ernest Baiget Vidal

2008-12-01

Full Text Available La investigación consta de tres estudios interrelacionados. Un primer estudio comprende el diseño de una prueba en pista para evaluar la resistencia específica en tenis (SET-Test, Specífic Endurance Tennis Test, que se valida mediante un análisis de su fiabilidad –en 12 jugadores de competición– y de su validez –con una muestra de 38 jugadores. En un segundo estudio se describen las características funcionales de los tenistas de competición evaluadas mediante la aplicación del SET-Test en la muestra de 38 jugadores, clasificados según su ITN (International Tennis Number, y se analiza la capacidad predictiva de la prueba respecto del nivel competitivo de los tenistas. En el tercer estudio se caracterizan las demandas bioenergéticas de un partido de individuales mediante el registro de parámetros ergoespirométricos en competición simulada a lo largo de 20 sets y en 20 jugadores. Del diseño y validación de la prueba se concluye que el SET-Test es una prueba de campo objetiva, fiable y válida para evaluar la resistencia específica en tenistas, que permite realizar una evaluación directa de parámetros ergoespirométricos sin que eso afecte significativamente a los parámetros estudiados y que es válida para determinar de manera indirecta el segundo umbral ventilatorio (UV2. La variable de efectividad técnica, valorada como porcentaje de aciertos en precisión y potencia de los golpes durante la prueba, se muestra como el mejor indicador de rendimiento, seguido de cerca por los parámetros fisiológicos de resistencia y potencia aeróbica (UV2 y VO2màx, parámetros que explican buena parte de la variancia en el nivel competitivo de los jugadores (56 y 53%, respectivamente. Posiblemente el resto de la variabilidad pueda ser explicada por su nivel en habilidades tácticas, estratégicas o psicológicas. Se confirma la existencia de un punto de deflexión de la frecuencia cardiaca observable en el 92% de los sujetos

Wikis en lenguas para fines específicos y su traducción

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Raquel Lázaro Gutiérrez

2010-01-01

Full Text Available Las herramientas Wiki pueden llegar a ser muy útiles tanto en la enseñanza de lenguas en general como en la traducción, sobre todo si se tiene en cuenta que, hoy en día, dentro del nuevo marco del Espacio Europeo de Educación Superior, los docentes tienen que enfrentarse a dificultades como grupos numerosos de alumnos, pocas clases presenciales y competencias transversales añadidas al contenido de las materias. Por este motivo, que una herramienta como las wikis, que permita trabajar fuera del aula y con la cual el estudiante puede realizar trabajos individuales y en grupo, conectado y en contacto con el resto de sus compañeros y profesores, resulta especialmente útil. Mientras que la sencillez de estas herramientas permite al docente diseñar actividades atractivas y útiles con un esfuerzo y conocimientos tecnológicos relativamente mínimos, para los estudiantes supone una gran oportunidad para aprender a trabajar con las TIC y de manera grupal y colaborativa. En este capítulo se describen las tareas y actividades que se diseñaron y pusieron en práctica para las asignaturas del Máster Oficial en Comunicación Intercultural, Interpretación y Traducción en los Servicios Públicos y para las asignaturas de inglés para fines específicos del postgrado y grado de la Facultad de Derecho de la Universidad de Alcalá, centrándonos de manera especial en su diseño, las dificultades y ventajas que plantearon y la respuesta que se obtuvo por parte del alumnado.

Estudio sobre los procedimientos de identificación del trastorno específico del lenguaje

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Jesús Vera

2012-12-01

Full Text Available Los procedimientos de estudio y tratamiento de los Trastornos Específicos del Lenguaje (TEL son aspectos que son poco conocidos debido fundamentalmente a una serie de factores entre los que se encuentran un todavía no alcanzado consenso sobre la naturaleza del TEL, un amplio abanico de diferentes profesionales tratando de analizarlo desde posiciones marcadamente distantes como son la perspectiva clínica e investigadora y una abundante y en ocasiones contradictoria literatura relativa al mismo. Los objetivos perseguidos en este estudio han sido: a caracterizar el tipo de profesionales que en nuestro entorno identifican y tratan el TEL; b conocer la conceptualización del TEL que realizan dichos profesionales; c averiguar los tipos de procedimientos de identificación del TEL en relación a los modelos teóricos declarados. Mediante una encuesta elaborada al efecto se han obtenido resultados que permiten constatar la gran diversidad de profesionales que abordan el TEL en nuestro entorno cultural; que no existe un grado de consenso suficiente entre ellos ni sobre la caracterización del trastorno ni sobre los procedimientos diagnósticos utilizados y que los diagnósticos de dichos profesionales no responden a los tres criterios básicos que en la actualidad se utilizan en la identificación del TEL: discrepancia, especificidad y marcadores de riesgo.

Relação entre vocabulário receptivo e expressivo em crianças com transtorno específico do desenvolvimento da fala e da linguagem

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Aline Citino Armonia

2015-06-01

Full Text Available OBJETIVO: comparar os índices de vocabulário receptivo e expressivo de crianças com Transtorno Específico do Desenvolvimento da Fala e da Linguagem. MÉTODOS: trata-se de estudo transversal, com amostra constituída por 21 crianças com Transtorno Específico do Desenvolvimento da Fala e da Linguagem, avaliadas em clínica-escola de Fonoaudiologia, sendo 9 crianças do gênero feminino e 12 crianças do gênero masculino, com idades entre 3 e 11 anos. Para este estudo foi utilizada a Prova de Vocabulário do Teste ABFW e o Teste de Vocabulário por Imagem Peabody - TVIP. RESULTADOS: 80,95% das crianças apresentaram desempenho adequado na avaliação do vocabulário expressivo, enquanto 52,4% apresentaram desempenho compatível com a faixa etária na avaliação do vocabulário receptivo. Não houve significância estatística. CONCLUSÃO: as crianças apresentaram melhor desempenho em avaliação do vocabulário expressivo em relação ao vocabulário receptivo. Esses dados comprovam a necessidade de um olhar atento e investigativo do fonoaudiólogo para os aspectos tanto de produção quanto de compreensão da linguagem.

Redução da influência da massa específica na determinação do teor de umidade de sementes de trigo Density-independent moisture content measurement of wheat seed

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Pedro Amorim Berbert

1999-04-01

Full Text Available A medição da capacitância e da condutância de um capacitor contendo amostras de trigo permite a determinação de duas de suas propriedades dielétricas: a permissividade relativa (épsilon' e o fator de perda dielétrica (épsilon". A utilização dessas propriedades, medidas simultaneamente em duas freqüências de oscilação do campo elétrico, permite reduzir ou eliminar o efeito da massa específica aparente na determinação do teor de umidade do trigo. Tal procedimento torna possível o monitoramento contínuo e em tempo real, sem a necessidade de retirar amostras, do teor de umidade de uma coluna de grãos em movimento, situação em que ocorrem as maiores variações na massa específica do produto. O objetivo deste trabalho consistiu na obtenção de equações que permitam reduzir ou eliminar o efeito da massa específica na determinação em linha do teor de umidade do trigo. Foram utilizadas amostras das variedades Hussar, Mercia e Hereward com teor de umidade entre 11% e 22% b.u. e massa específica no intervalo 666 kg m-3 Measurement of the capacitance and conductance of a capacitor filled with samples of wheat allows the determination of two dielectric properties of the material: the relative permissivity (epsilon', and the dielectric loss factor (epsilon". The use of these two properties, measured simultaneously at two different frequencies of the electric field, permits bulk density-independent measurement of moisture content of wheat. This procedure makes it possible to monitor moisture content continuously, and on-line, of a moving column of grain, a situation where the greatest variations in bulk density are to be expected. The objective of the present research was the derivation of density-independent equations for the determination of moisture content of wheat. Samples of varieties Hussar, Mercia and Hereward at moisture contents ranging from 11% to 22% w.b., and bulk densities ranging from 666 to 873 kg m-3 have been

Q’eros, Perú: la regeneración de relaciones cosmológicas e identidades específicas a través de la música

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Holly Wissler

2010-12-01

Full Text Available Uno de los principales objetivos de la música de la comunidad andina Q’eros es re-generar y re-crear buenas relaciones con el cosmos y con el mundo espiritual en el que cree. En esta ponencia analizo el modo cómo tanto las canciones indígenas de Q’eros como la música y danza que la comunidad ha incorporado recientemente a la peregrinación más grande del Perú -Qoyllurit’i- logran la eficacia del propósito a través de similares técnicas de producción de sonido y estética. Aunque los rasgos específicos de ambos estilos (estructura, escala e instrumentación son significativamente diferentes, yo me ocupo de la forma en que la producción musical de ambos tipos comparte el mismo enfoque y sirve a la misma meta, ya sea que se trate de un ritual íntimo dentro de la comunidad o de uno compartido con miles de otras personas de la gran región. Además, la interpretación de los dos tipos de música sirve como indicador de identidad específica para los q’eros, dependiendo de su uso contextual y la identidad deseada en el momento. Es decir, las elecciones musicales les permiten cambiar de identidad entre la de q’eros tradicionales en su comunidad natal, y la de misti (mestizo en Qoyllurit’i.

IFP Energies Nouvelles. 2014 Activity report - Innovating for energy

International Nuclear Information System (INIS)

2015-01-01

As part of the public-interest mission with which it has been tasked by the public authorities, IFP Energies Nouvelles (IFPEN) focuses on: - providing solutions to take up the challenges facing society in terms of energy and the climate, promoting the emergence of a sustainable energy mix, - creating wealth and jobs by supporting French and European economic activity, and the competitiveness of related industrial sectors. Despite the current economic environment, 2014 was a good year for IFPEN. In the field of renewable energies, major milestones were reached in two significant projects dedicated to the production of second generation biofuels in which IFPEN is very actively involved: processes developed in Futurol TM are already in the pre-marketing phase, while the construction of the two pilot units for the BioTfueL project has just been launched. In the field of ocean energies, IFPEN research has led to the first partnership agreements relating to floating wind turbines anchor technologies and command control systems for wind energy and wave energy conversion. In the transport sector, game-changing concepts are beginning to emerge, such as smart battery charging and a Rankine cycle system for an internal combustion engine transforming combustion heat into energy. In addition, IFPEN have joined forces with innovative SMEs to boost their research in the fields of electric power-trains and power electronics. Finally, IFPEN launched an eco-driving application that has proved extremely popular with the public. Turning now to oil and gas, IFPEN continued to expand its range of basin and reservoir simulation, modeling and characterization software, and it signed several contracts in the field of chemical enhanced recovery solutions with its EOR (Enhanced Oil Recovery) Alliance TM partners. IFPEN also developed new generations of high-performance catalysts and improved the conversion rate of its processes to enable refiners to convert increasingly heavy crudes and

Caracterización neuropsicológica en niños con diagnóstico de trastorno específico de aprendizaje en Cali, Colombia

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María Cristina Quijano Martínez

2013-01-01

Full Text Available El objetivo de este estudio fue comparar las funciones cognitivas en niños con antecedente de Trastorno Específico de Aprendizaje (TEA en colegios privados de la ciudad de Cali, Colombia con un grupo control (GC. La muestra estuvo conformada por 37 sujetos con TEA y 28 sujetos en el grupo control (GC, de estrato socioeco- nómico medio-alto. La edad promedio fue de 9 años y la escolaridad de 4°. Los instrumentos utilizados para selección de los grupos fueron el Cuestionario de problemas de aprendizaje CEPA, subescalas de la Minientrevista neuropsiquiátrica internacional para niños y adolescentes (M.I.N.I.- N-A, la Escala de inteligencia de Wechsler para niños WISC-R y subescalas de lectura, escritura y aritmética de la Batería de Evalua- ción Neuropsicológica Infantil (ENI. Las funciones Cognitivas, fueron evaluadas con subescalas de la ENI. Los resultados muestran diferencias estadísticamente significativas (p≤0.05 entre las medianas de funciones cognitivas de atención, memoria (codificación y evocación, comprensión del lenguaje, habilidades construccionales, espaciales y funciones ejecutivas. En conclusión, los niños con TEA presentan alteraciones neuropsicológicas subyacentes, que interfieren en el desempeño de tareas escolares. Convencionalmente se hacen intervenciones en lectura, escritura y cálculo, y no en sus prerrequisitos, por tanto, los resultados sugieren que se debe orientar la intervención a la estimulación de los procesos cognitivos comprometidos y no al síntoma específico.

Isabel Georges et Yumi Garcia dos Santos, Les nouvelles politiques sociales brésiliennes dans la santé et l’assistance aux personnes – Production locale de service et rapports de genre (As novas políticas

OpenAIRE

Azaïs, Christian

2017-01-01

Cet ouvrage, publié en 2016 au Brésil, est le fruit de plusieurs années de recherches menées par deux sociologues. Il pose la question de l’émergence de « nouvelles » politiques sociales en Amérique latine et plus particulièrement au Brésil, ces vingt dernières années, et de leur signification une trentaine d’années après la redémocratisation du pays. Ce pays, souvent présenté comme le laboratoire d’expérimentation des politiques sociales, notamment avec le programme-phare Bolsa Família (Bour...

Diseño y validación de la plataforma PLEVALEX como respuesta a los retos de diseño de exámenes de lenguas para fines específicos

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Jesús García Laborda

2007-10-01

Full Text Available Este artículo describe las necesidades de diseño y validación que llevaron al desarrollo de la Plataforma de Evaluación Valenciana de Lenguas Extranjeras (PLEVALEX para exámenes orales y escritos a través de Internet. Aunque la plataforma es multilingüe, en este trabajo nos referiremos a su uso para exámenes de inglés con fines específicos. La plataforma fue desarrollada por el Grupo de Investigación en Lenguas para Fines Específicos (GILFE de la Universidad Politécnica de Valencia. La validación se hizo en cooperación con el Centro de Investigación en Tecnologías Gráficas (CITG de la misma universidad. La prueba de ergonomía se realizó a tres niveles: diseñadores, expertos y usuarios. El seguimiento realizado con estudiantes de comunicación audiovisual y profesores de la Universidad Politécnica de Valencia indicó una reacción positiva hacia la plataforma de exámenes en red.

Interoperabilidad entre el LMS Moodle y las aplicaciones educativas de propósito específico utilizando servicios del IMS-LTI

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Cynthia Guadalupe Soto Cardinault

2015-10-01

Full Text Available Compartir y reutilizar recursos digitales de alta calidad resulta una necesidad creciente en materia educativa; por ello, es conveniente conocer mecanismos de interoperabilidad con sistemas de gestión de aprendizaje transparentes de implementar y que permiten aprovechar al máximo las características propias de su diseño instruccional. En este artículo, presentamos una introducción al estándar de interoperabilidad IMS-LTI que ayuda a que esto sea posible y un breve análisis comparativo respecto al estándar SCORM, ambos ampliamente aceptados y usados en este contexto; asimismo, ejemplificamos el proceso de interoperabilidad entre una aplicación de aprendizaje de propósito específico (alojada en general en forma remota y Moodle, una plataforma educativa empleada en el ámbito educativo.

Une Nouvelle Forme d’Autobiographie dans Les Années d’Annie Ernaux: Autobiographie Impersonnelle

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Seçil Yücedağ

2017-12-01

Full Text Available Annie Ernaux, considérée comme l’une des femmes écrivaines les plus célèbres du XXIe siècle, a exprimé l’angoisse commune de son âge et de son passé en rédigeant Les Années. Elle n’avait pas non seulement le but de décrire sa vie, mais aussi d’esquisser l’histoire de la société française à laquelle elle appartient. Lorsqu’elle est venue au monde en 1940, le monde était au seuil de la Seconde Guerre mondiale. Etant élevée dans cette atmosphère chaotique, elle a appris beaucoup de choses de sa société, de sa famille et de son environnement. Annie Ernaux a découvert le monde comme une jeune fille, une mère, une épouse et une grand-mère. Ses expériences sociales et familiales l’ont beaucoup mûrie et elle a commencé à rédiger ses pensées. Ses souvenirs ont fait partie de ses écritures autobiographiques. Dans Les Années, Annie Ernaux a profité de toutes ses expériences personnelles et sociales avec de différents moyens. Elle a essayé d’établir des liens entre l’histoire de sa vie et celle de la société. Elle a accordé une importance à la vie sociale plutôt que sa propre vie dans Les Années. Elle y a développé des propres techniques d’écriture en se servant des photos familiales et personnelles, d’un film, d’une vidéo, des marques de publicité, des chansons, d’un tableau, des notes de journal ainsi que des événements sociologiques et historiques. Elle a ainsi créé une nouvelle forme d’autobiographie : autobiographie impersonnelle.

Estudo da massa específica básica e da variação dimensional da madeira de três espécies de eucalipto para a indústria moveleira

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Camila Santos Doubek Lopes

2011-06-01

Full Text Available A utilização da madeira de árvores de espécies de reflorestamento pela indústria moveleira tem apresentado tendência de crescimento nos últimos anos. Nesse sentido, no presente trabalho foram determinadas a massa específica básica e variação dimensional da madeira de árvores de Eucalyptus grandis, Eucalyptus dunnii e Eucalyptus urophylla, de 18 anos, para a aplicação como componentes de madeira maciça em movelaria. Os ensaios laboratoriais para a avaliação da massa específica básica e da variação dimensional da madeira nos sentidos radial e longitudinal do tronco das árvores de eucaliptos foram realizados de acordo com a NBR 7190/96. Os resultados da análise da madeira das espécies de eucalipto foram submetidos ao Teste de Homogeneidade, Análise de Variância, Teste de Tukey e Correlação de Pearson e comparados com o desempenho da madeira de sucupira (Bowdichia nitida e de cumaru (Dipteryx odorata utilizadas na indústria moveleira. Verificou-se para a madeira de Eucalyptus grandis menor valor de variação dimensional, sendo a mais indicada para componentes de móveis que exigem elevada estabilidade dimensional, além de peças de maior superfície. A madeira dessa espécie apresentou índice de variação dimensional compatível com o de espécies nativas utilizadas na indústria moveleira. Verificou-se, ainda, variação radial das propriedades da madeira, com alta correlação entre a massa específica básica e a variação dimensional. No sentido longitudinal, a base do tronco das árvores de eucalipto mostrou-se com a região de madeira de maior estabilidade dimensional.

Sobre conhecimento geral e específico: destaque substantivos e adjetivos para uma epistemologia da Enfermagem Sobre el conocimiento general y específico: destaques substantivos y adjetivos para una epistemología de la Enfermería General and specific knowledge: substantive and adjective detachs to an epistemology of nursing

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Vilma de Carvalho

2007-06-01

Full Text Available Temática: Trata de trabalho sobre o conhecimento geral e específico no interesse da Enfermagem - ensino e prática da arte de cuidar, com implicações para aspectos destacados de investigar a realidade e buscar respostas relativas à construção científica. Objetivo: Clarear definições pertinentes ao saber, ao conhecimento em si e à investigação na enfermagem. Metodologia discursiva com abordagem filosófica no que concerne a proposições e argumentos quanto aos aspectos teóricos e práticos que abrangem o saber, a consciência (subjetividade e a realidade (objeto estudado, no plano do pensamento e do conhecimento científico. Na análise dos aspectos destacados, alguns conceitos epistemológicos servem para conferir questões do saber profissional e da ciência enquanto correlacionadas à prática do ensino e da assistência na enfermagem. A problemática do conhecimento geral e específico condiz não só com dificuldades conceituais e de domínio do conhecimento em si, mas também com a experiência de formar a consciência crítica e a competência profissional frente aos desafios da prática total da enfermagem - ensino, pesquisa e extensão/assistência, com repercussões para a formação do perfil profissional na área da enfermagem.En este trabajo, se trata del conocimiento general y específico para la enfermería - enseñanza y práctica del arte de cuidar, con implicaciones para los aspectos importantes de la investigación de la realidad y la búsqueda de respuestas pertinentes a la construcción científica. Objetivo: Esclarecer las definiciones relacionadas al saber, al conocimiento en si y a la investigación de la enfermería. Metodología basada en el abordaje filosófico y discursivo en lo concerniente a las proposiciones y argumentos relacionados con los aspectos teóricos y prácticos que abarcan el saber, la conciencia (subjetividad y de la realidad (objeto estudiado, en el plano del pensamiento y conocimiento

La educación psicomotriz en su contribución al desarrollo del lenguaje en niños que presentan necesidades específicas de apoyo educativo

OpenAIRE

Rodríguez, María Teresa; Gómez, Isabel María; Prieto Ayuso, Alejandro; Pedro, Gil Madrona

2017-01-01

La presente investigación pretende mostrar la influencia y contribución de la intervención psicomotriz en el desarrollo del lenguaje en aquellos niños con necesidades específicas de apoyo educativo . Se lleva a cabo un programa intervención psicomotriz basado en el movimiento y el juego motor, como complemento a la intervención en logopedia durante tres meses de duración con tres niños de entre 4 y 5 años que presentan determinadas dificultades en el desarrollo del lenguaje como p...

Percepción del enfermero en procesos estrategicos de programas de protección específica y detección temprana en ips de bogota

OpenAIRE

Cruz Riveros, Jhonny Walyt; Gómez, Olga Janneth

2012-01-01

La investigación de "percepción del enfermero en procesos estratégicos de programas de protección específica y detección temprana", es un estudio descriptivo que muestra la percepción de profesionales de enfermería que se encuentran a cargo de estos programas en Bogotá, los procesos se describen desde los estándares del Sistema Único de Acreditación, reglamentado en el marco legal de las instituciones de salud en Colombia por el Decreto 1011 de 2006. Los estándares se aplicaron a una població...

Situaciones didácticas en el contexto de ingeniería civil: caso infiltración de agua en un suelo específico

OpenAIRE

Hernández, Hipólito; Rodríguez, Ruth; de la Cruz, Adriana

2010-01-01

En la presente investigación se abordó el problema de infiltración de agua en un suelo específico, en consecuencia se exploró una situación didáctica, considerando la noción de predicción como práctica social en la modelación matemática de este fenómeno físico. Se parte de la epistemología inicial del binomio de Newton y la serie de Taylor, como marco de referencia para el estudio del diseño de la situación, donde la práctica de predicción es incorporada de forma intencional. A la vez se repo...

Les Nouvelles Traversées Alpines : la “cité-Europe” à l’épreuve de l’acceptabilité alpine ? The New alpine crossings : The “city-Europe” faces up to the alpine acceptability

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Kevin Sutton

2012-12-01

Full Text Available La pensée des traversées alpines est indissociable de celle des réseaux urbains alpins et, au-delà, européens. La nouvelle phase de percée des tunnels de base le réaffirme : les “Nouvelles Traversées Alpines” se retrouvent au coeur de l’enjeu de connexion des réseaux ferroviaires européens à grande vitesse. L’invention de la “cité-Europe” passe ainsi par la réinvention d’un pacte alpin autour du dessein de franchissement entre les villes de piedmonts et les communautés montagnardes traversées. Ces dernières ont, en effet, la capacité de bloquer un projet par leur refus. L’exemple du projet Lyon-Turin l’illustre, en contre-point de la réussite du tunnel de base du Lötschberg. La réussite suisse semble tenir à la capacité de conjuguer les inventions technique et sociale du tunnel, ne niant pas la dimension territoriale de cet objet réticulaire.It is impossible to think about the alpine crossings without thinking about the alpine and European urban nets. The construction of the basis tunnels recalls it: the “New Alpine Crossings” are the kernel of the connection issue between the European high-speed railways nets. The invention of a “city-Europe” needs a reinvented pact, between the cities of the plains and the alpine communities, based on the reaffirmation of a common crossing destiny. The alpine communities can thwart the project by refusing it, as the example of the Lyon-Turin project shows, in contrast to the successful Lötschberg basis tunnel. The Swiss success seems to come from the capacity to mix technical and social inventions, replacing the territorial dimension in the reticular fundament.

Faciologic characterization of coal beds in the Cerquilho region, state of Sao Paulo, Brazil

International Nuclear Information System (INIS)

Nagalli, J.T.; Consoni, J.O.C.

1984-01-01

Since 1981, NUCLEBRAS, researches the Tubarao group in the state of Sao Paulo, in order to evaluate the uraniferous potential of carbonaceous sediments in the Parana Basin. This work discusses geologic information concerning the Cerquilho area, where, the faciologic and structural characterization of the coal beds (or seams) were analyzed, and the main targets for uranium concentration were identified. Such study was performed through detailed field observations, imagery and aerial photograph interpretation as well as well logging analysis. Results suggested that the uraniferous anomalies are controlled by fluvial channels cutting the coal beds, with periglacial influence. (Author) [pt

Nouvelles techniques de mise en valeur des ressources d'hydrocarbures New Techniques for Valorising Hydrocarbon Resources

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Boy De la Tour X.

2006-11-01

Full Text Available Après avoir montré l'importance des réserves de pétrole non conventionnel et l'enjeu que représente pour l'humanité la mise en exploitation de ces ressources, cette étude examine les axes actuels de recherches et l'état de la technologie pour chacune des sources de nouveau pétrole retenues : mers profondes, récupération assistée, huiles lourdes et sables asphaltiques, schistes bitumineux et conversion du charbon. Il en ressort que si les ressources de nouveau pétrole sont considérables, leur mise en valeur nécessitera des investissements très lourds, et le coût du pétrole ainsi produit restera élevé, comparé au coût actuel du pétrole conventionnel. Compte tenu des délais de mise en oeuvre, des problèmes technologiques restant à résoudre et de la nécessité de réaliser des pilotes semi-industriels très coûteux pour expérimenter les nouvelles techniques, il convient de consentir sans attendre un effort important de recherche technologique, impliquant un accroissement sensible des budgets de R&D, mais aussi des incitations financières appropriées. Cet effort de mise au point de technologies adaptées à ces sources d'hydrocarbures sera favorisé par les nouvelles conditions économiques créées par la rareté relative des réserves d'hydrocarbures classiques, à condition que les Etats, par leur politique, favorisent la production de ressources d'hydrocarbures à coût élevé. A l'heure actuelle, on peut évaluer la production de pétrole difficile à environ 100 Mt, l'essentiel étant réalisé dans le domaine des huiles lourdes et de la récupération assistée ; on estime que la production de nouveau pétrole pourrait représenter 200 à 350 Mt en 1990 et se situer entre 600 et 900 Mt en 2000, soit 5 à 8 % de la production de pétrole en 1990 et 15 à 20 % en 2000. Un tel objectif nécessiterait des investissements de l'ordre de 500 à 750 milliards de dollars 1980. After pointing out the importance of

Propuesta y resultados de una evaluación condicional específica para el entrenamiento de judo: La batería blasco aplicada en judokas españoles.

OpenAIRE

Blasco Lafarga, Cristina

2008-01-01

RESUMEN La evaluación condicional es un elemento básico en el ámbito del Alto Rendimiento cuando se centra en valoraciones específicas y relevantes, de ejecución sencilla y lectura simple, con resultados aplicables al proceso de entrenamiento. De la misma forma, junto a un análisis numérico o cuantitativo, la evaluación condicional debe permitir una lectura cualitativa que explique las capacidades del deportista desde una perspectiva global e integradora. Con el objeto de ajustarnos a esta...

Inexistência de diferenças de sexo no fator g (inteligência geral) e nas habilidades específicas em crianças de duas capitais brasileiras

OpenAIRE

Flores-Mendoza,Carmen E.; Mansur-Alves,Marcela; Lelé,Álvaro José; Bandeira,Denise Ruschel

2007-01-01

O presente trabalho pretendeu examinar diferenças relacionadas ao sexo no fator g (inteligência geral) e em habilidades específicas em crianças de duas cidades brasileiras: Belo Horizonte e Porto Alegre. No caso da amostra mineira (n=1,316), a idade compreendeu entre 5 e 11 anos de idade examinada através de uma bateria de testes a qual incluiu instrumentos de inteligência (Raven, Escala Verbal WISC III, R-2, DFH), de avaliação psicomotora (Bender) e de desempenho escolar (TDE). No caso da am...

Nouvelle manga, mon amour. Reflexiones sobre la narración gráfica de historias cotidianas

Directory of Open Access Journals (Sweden)

Olalla Hernández Ranz

2010-03-01

Full Text Available Desde sus primeras manifestaciones hace más de un siglo, el cómic se ha ido consolidando como un género popular sobretodo dirigido a un lector juvenil. Su evidente atractivo entre los lectores ha hecho que algunos padres, educadores y profesionales del ámbito de la promoción de la lectura se plantearan el por qué de dicha afición, llegando a conclusiones erróneas como la creencia de que se trata de una lectura menor, dirigida esencialmente a la pura distracción de quien los lee. El manga, en concreto, es el género dentro del cómic que más se consume en occidente. Se ha convertido en un fructífero producto de mercado que deriva en videojuegos, series de televisión, películas de cine… Su gran acogida entre el público infantil y juvenil preocupa a mediadores por la supuesta carga violenta y sexual y la baja calidad literaria de sus obras. El presente propuesta tratará de deshacer algunos tópicos en relación con la concepción errónea la historieta nipona, a partir del estudio de un corpus de obras creadas por autores japoneses y europeos que quieren aportar un cómic de calidad tanto en su forma como en el contenido, abriendo así las puertas a nuevas investigaciones de gran interés. La Novelle manga es un nuevo género dentro del cómic nipón que aúna las estrategias comunicativas más destacables de las novelas gráficas japonesas, el valor estético del cómic francés y la sencillez y el tono de las películas de cine francés dentro de la Nouvelle Vague para crear un cómic que narra historias cotidianas de gran valor literario y estético, muy recomendable para lectores juveniles y adultos.

IFP Energies nouvelles - 2013 Activity Report. 2013 financial report. Innovating for energy

International Nuclear Information System (INIS)

2014-01-01

IFP Energies nouvelles (IFPEN) is a public research and training player. It has an international scope, covering the fields of energy, transport and the environment. From research to industry, technological innovation is central to all its activities. As part of the public-interest mission with which it has been tasked by the public authorities, IFPEN focuses on: - providing solutions to take up the challenges facing society in terms of energy and the climate, promoting the emergence of a sustainable energy mix; - creating wealth and jobs by supporting French and European economic activity, and the competitiveness of related industrial sectors. IFPEN has proven expertise across the entire value chain, from fundamental research to industrial research and innovation. It is funded both by a state budget and by resources provided by French and foreign international partners. The aim of IFPEN's R and D programs is to overcome existing scientific and technological barriers in order to develop innovations that can be used by industry. Through its research and resulting innovations, IFPEN fosters the economic development of fields related to the energy, transport and eco-industry sectors. In so doing, it also contributes to creating wealth and jobs. IFPEN's innovations are developed industrially through close partnerships with industrial players and IFP Group subsidiaries. In both emerging and mature markets, IFPEN creates companies or acquires stakeholdings in companies of significant potential, either directly or via capital funds. In addition, IFPEN supports the development of SMEs and SMIs as part of collaboration agreements, contributing its technical and legal expertise. Representing over 50 professions, from geological engineers to power-train engineers, IFPEN's employees form a unique body of globally recognized scientific specialists and an unparalleled network of expertise. In order to carry out their research work at the cutting edge of innovation, they have

Trabajo en equipo en el clima organizacional de las empresas, en al área específica del talento humano

Directory of Open Access Journals (Sweden)

González Peláez, Dora Inés

2015-01-01

Full Text Available Históricamente el trabajo en equipo ha constituido una necesidad del hombre para el logro de sus metas, tanto a nivel personal como laboral. Su efectividad depende en gran medida de las relaciones interpersonales, de apoyo y colaboración que se desarrollan entre los miembros del equipo de trabajo. El presente artículo identifica y describe las causas y consecuencias que tiene éste en el clima organizacional de las empresas, específicamente en las áreas de Talento Humano. Entre los motivos más relevantes se evidencian el liderazgo, la comunicación y la cultura; aspectos que se traducen en relaciones armoniosas, compromiso y productividad; el otro aspecto que queda claro en la investigación, es el papel preponderante de las áreas y/o departamentos de gestión humana en las organizaciones y la preparación que requieren los profesionales de dichas áreas para asumir el nuevo rol de ser socio estratégico del negocio y gestor del cambio organizacional.

Intervención didáctica para la enseñanza de la farmacología en las clases de inglés con fines específicos

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Vladimir Molina Raad

2015-12-01

Full Text Available Se realizó un estudio cualitativo de intervención, con el objetivo de determinar el vocabulario relacionado con la farmacología, necesario para desarrollar las clases de inglés médico en la carrera de Medicina de la Universidad de Ciencias Médicas de Las Tunas. El grupo de estudio estuvo constituido por los estudiantes y profesores del 5to año de la carrera de Medicina del curso 2011-2012. Las variables fueron la preparación del colectivo de profesores, las afecciones clínicas incluidas en el programa, los grupos farmacológicos implicados y el nombre en inglés de medicamentos específicos. La información se obtuvo de los libros de textos y los trabajos independientes realizados por los estudiantes. Se constató que la preparación profesional de los docentes en el área de la farmacología depende de la disponibilidad de diccionarios actualizados y de los conocimientos que estos han ido adquiriendo de forma empírica. Se observó una tendencia en los estudiantes a relacionar nombres de medicamentos, cuyas pronunciaciones se desconocen, lo cual entorpece la adquisición correcta del contenido lingüístico en inglés. Se evidenció que cuando se trabajan los grupos farmacológicos con un limitado número de medicamentos específicos y reconocidos, se logra un mejor desempeño lingüístico en los estudiantes.

Geologic-radiometric techniques applied for uranium prospection at the Hierro-Cayo Largo area

International Nuclear Information System (INIS)

Gongora, L.E.; Olivera, J.

1995-01-01

Using geologic-radiometric techniques uraniferous anomalies were evaluated at the Hierro-Cayo Largo area located in Pinar del Rio province. During the uranium prospection works at most promising areas, geologic itineraries and gamma ray, radon emanation spectrometric survey were done. Trenches were made and some boreholes were drilled (up to 20-30 m depth). In addition a lot of samples were taken in order to determine the amount of U, Ra, Th, y K by spectrometric techniques. As result of this investigation, a geological placing, a mineralogical and geochemical characteristic of uraniferous mineralization was possible to find out. The appropriate prospection indications for uranium exploration at Esperanza geologic zone were defined

Elaboration de nouvelles approches micromecaniques pour l'optimisation des performances mecaniques des materiaux heterogenes

Science.gov (United States)

Aboutajeddine, Ahmed

Les modeles micromecaniques de transition d'echelles qui permettent de determiner les proprietes effectives des materiaux heterogenes a partir de la microstructure sont consideres dans ce travail. L'objectif est la prise en compte de la presence d'une interphase entre la matrice et le renforcement dans les modeles micromecaniques classiques, de meme que la reconsideration des approximations de base de ces modeles, afin de traiter les materiaux multiphasiques. Un nouveau modele micromecanique est alors propose pour tenir compte de la presence d'une interphase elastique mince lors de la determination des proprietes effectives. Ce modele a ete construit grace a l'apport de l'equation integrale, des operateurs interfaciaux de Hill et de la methode de Mori-Tanaka. Les expressions obtenues pour les modules globaux et les champs dans l'enrobage sont de nature analytique. L'approximation de base de ce modele est amelioree par la suite dans un nouveau modele qui s'interesse aux inclusions enrobees avec un enrobage mince ou epais. La resolution utilisee s'appuie sur une double homogeneisation realisee au niveau de l'inclusion enrobee et du materiau. Cette nouvelle demarche, permettra d'apprehender completement les implications des approximations de la modelisation. Les resultats obtenus sont exploites par la suite dans la solution de l'assemblage de Hashin. Ainsi, plusieurs modeles micromecaniques classiques d'origines differentes se voient unifier et rattacher, dans ce travail, a la representation geometrique de Hashin. En plus de pouvoir apprecier completement la pertinence de l'approximation de chaque modele dans cette vision unique, l'extension correcte de ces modeles aux materiaux multiphasiques est rendue possible. Plusieurs modeles analytiques et explicites sont alors proposee suivant des solutions de differents ordres de l'assemblage de Hashin. L'un des modeles explicite apparait comme une correction directe du modele de Mori-Tanaka, dans les cas ou celui ci echoue a

Migração específica de antioxidante de embalagens plásticas para alimentos Specific migration of antioxidant from plastic packages for food

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Leda Coltro

2011-01-01

Full Text Available O uso de aditivos em materiais plásticos é essencial para o processamento e desempenho dos plásticos, uma vez que os aditivos conferem características desejadas aos polímeros. No entanto, há restrições determinadas pela Agência Nacional de Vigilância Sanitária (ANVISA para as embalagens plásticas de alimentos, as quais devem ser avaliadas por meio de ensaios físicos, realizados por laboratório acreditado, para verificar se os requisitos estabelecidos pela ANVISA são atendidos. Sendo assim, o objetivo desse trabalho foi desenvolver metodologia que permita a avaliação da migração de 3-(3,5-di-terc-butil-4-hidroxifenil propionato de n-octadecila, antioxidante de nome comercial Irganox 1076, CAS 2082-79-3, presente em embalagens plásticas para contato com alimentos, empregando cromatografia líquida de alta eficiência. Esse estudo também teve como finalidade comprovar se o conteúdo de Irganox 1076 de amostras comerciais de filmes plásticos atende ao requisito de limite de migração específica estabelecido pela ANVISA para este aditivo. Os resultados obtidos indicam que a metodologia utilizada para os simulantes aquoso, ácido e gorduroso é satisfatória e adequada para a análise da migração específica do Irganox 1076, uma vez que todos os parâmetros necessários para a validação do método foram atingidos. As amostras de filme de PEBD e de EVA analisadas atendem ao limite de migração específica do Irganox 1076 para todos os simulantes avaliados.The use of additives in plastics is essential for the processing and performance of plastic products since the additives enhance the desired characteristics of the polymers. Nevertheless, there are restrictions established by the Brazilian Agency of Sanitary Surveillance (ANVISA for plastic packages intended to be in contact with foodstuffs which must be submitted to analyses at a proper laboratory in order to check the compliance with the requirements established

Características clínicas y tratamiento de la ansiedad académica y ante los exámenes como fobia específica de tipo situacional

OpenAIRE

Mondéjar García, Ángel

2010-01-01

L'ansietat acadèmica i davant els exàmens com a fòbia específica de tipus situacional és un trastorn infantil i juvenil d'efectes pertorbadors i negatius que repercuteixen sobre la salut mental i emocional, el rendiment acadèmic i la integració social de l'estudiant que la pateix. En aquest treball s'especifiquen les seves característiques clíniques. Així mateix, s'inclou un cas clínic d'un adolescent de 14 anys que patia d'aquest trastorn fòbic escolar, acompanyat de baixa autoestima persona...

Physiological and Comparative Genomic Analysis of Arthrobacter sp. SRS-W-1-2016 Provides Insights on Niche Adaptation for Survival in Uraniferous Soils

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Ashvini Chauhan

2018-01-01

Full Text Available Arthrobacter sp. strain SRS-W-1-2016 was isolated on high concentrations of uranium (U from the Savannah River Site (SRS that remains co-contaminated by radionuclides, heavy metals, and organics. SRS is located on the northeast bank of the Savannah River (South Carolina, USA, which is a U.S. Department of Energy (DOE managed ecosystem left historically contaminated from decades of nuclear weapons production activities. Predominant contaminants within the impacted SRS environment include U and Nickel (Ni, both of which can be transformed microbially into less toxic forms via metal complexation mechanisms. Strain SRS-W-1-2016 was isolated from the uraniferous SRS soils on high concentrations of U (4200 μM and Ni (8500 μM, but rapid growth was observed at much lower concentrations of 500 μM U and 1000 μM Ni, respectively. Microcosm studies established with strain SRS-W-1-2016 revealed a rapid decline in the concentration of spiked U such that it was almost undetectable in the supernatant by 72 h of incubation. Conversely, Ni concentrations remained unchanged, suggesting that the strain removed U but not Ni under the tested conditions. To obtain a deeper understanding of the metabolic potential, a draft genome sequence of strain SRS-W-1-2016 was obtained at a coverage of 90×, assembling into 93 contigs with an N50 contig length of 92,788 bases. The genomic size of strain SRS-W-1-2016 was found to be 4,564,701 bases with a total number of 4327 putative genes. An in-depth, genome-wide comparison between strain SRS-W-1-2016 and its four closest taxonomic relatives revealed 1159 distinct genes, representing 26.7% of its total genome; many associating with metal resistance proteins (e.g., for cadmium, cobalt, and zinc, transporter proteins, stress proteins, cytochromes, and drug resistance functions. Additionally, several gene homologues coding for resistance to metals were identified in the strain, such as outer membrane efflux pump proteins

Physiological and Comparative Genomic Analysis of Arthrobacter sp. SRS-W-1-2016 Provides Insights on Niche Adaptation for Survival in Uraniferous Soils.

Science.gov (United States)

Chauhan, Ashvini; Pathak, Ashish; Jaswal, Rajneesh; Edwards, Bobby; Chappell, Demario; Ball, Christopher; Garcia-Sillas, Reyna; Stothard, Paul; Seaman, John

2018-01-11

Arthrobacter sp. strain SRS-W-1-2016 was isolated on high concentrations of uranium (U) from the Savannah River Site (SRS) that remains co-contaminated by radionuclides, heavy metals, and organics. SRS is located on the northeast bank of the Savannah River (South Carolina, USA), which is a U.S. Department of Energy (DOE) managed ecosystem left historically contaminated from decades of nuclear weapons production activities. Predominant contaminants within the impacted SRS environment include U and Nickel (Ni), both of which can be transformed microbially into less toxic forms via metal complexation mechanisms. Strain SRS-W-1-2016 was isolated from the uraniferous SRS soils on high concentrations of U (4200 μM) and Ni (8500 μM), but rapid growth was observed at much lower concentrations of 500 μM U and 1000 μM Ni, respectively. Microcosm studies established with strain SRS-W-1-2016 revealed a rapid decline in the concentration of spiked U such that it was almost undetectable in the supernatant by 72 h of incubation. Conversely, Ni concentrations remained unchanged, suggesting that the strain removed U but not Ni under the tested conditions. To obtain a deeper understanding of the metabolic potential, a draft genome sequence of strain SRS-W-1-2016 was obtained at a coverage of 90×, assembling into 93 contigs with an N50 contig length of 92,788 bases. The genomic size of strain SRS-W-1-2016 was found to be 4,564,701 bases with a total number of 4327 putative genes. An in-depth, genome-wide comparison between strain SRS-W-1-2016 and its four closest taxonomic relatives revealed 1159 distinct genes, representing 26.7% of its total genome; many associating with metal resistance proteins (e.g., for cadmium, cobalt, and zinc), transporter proteins, stress proteins, cytochromes, and drug resistance functions. Additionally, several gene homologues coding for resistance to metals were identified in the strain, such as outer membrane efflux pump proteins, peptide

El concepto de tecnología escolar: una construcción de conocimiento profesional específico del profesorado de tecnología e informática

Directory of Open Access Journals (Sweden)

Jorge Mario Ortega Iglesias

2017-01-01

colectiva de creación y transformación del entorno, y un dispositivo de participación colectiva que afronta el hacer y saber hacer tecnológico en lo cotidiano. Esta comprensión del concepto de tecnología es la síntesis del sistema de ideas que integra el conocimiento específico del profesor, cuya integración obedece en principio al aula de clases como unidad representativa de significado, las fuentes de saber que nutren el conocimiento del profesor y sus respectivos estatutos epistemológicos, así como a un fenómeno discursivo de producción escolar de sentido.

La competencia comunicativa en el proceso de enseñanza aprendizaje del inglés con fines específicos en la carrera de estomatología

OpenAIRE

Acosta Ortega, Luisa Francisca

2012-01-01

El proceso de formación de los profesionales de la salud se sustenta en un modelo pedagógico para la formación de un profesional de amplio perfil. Un papel importante en este sentido corresponde al dominio del Idioma inglés que permita la actualización científico-técnica y el desempeño profesional en cualquier lugar del mundo. En la práctica actual se perciben insuficiencias en la formación de la competencia comunicativa en el Inglés con Fines Específicos en la carrera de Estomatología, para ...

Applications of Qualitative Microanalysis to the Determination of Secondary Species Associated with Uranium; Application de la microanalyse qualitative a la determination des especes secondaires d'uranium

Energy Technology Data Exchange (ETDEWEB)

Agrinier, H

1959-02-01

Microanalytical techniques are described which allow rapid determinations of secondary species associated with uranium. They consist in exposing the constituent elements of the ores by means of characteristic microchemical reactions. Because of their rapidity and the small amount of apparatus needed, these techniques can be used either in the field or in the laboratory. (author) [French] Les techniques de microanalyse decrites dans cet ouvrage permettent la determination rapide des especes secondaires d'uranium. Elles consistent a mettre en evidence les elements constitutifs des mineraux par des reactions microchimiques caracteristiques. En raison de leur rapidite et du peu de materiel qu'elles necessitent, ces techniques peuvent etre utilisees aussi bien sur le terrain qu'au laboratoire. (auteur)

Nouvelles formes de gouvernance dans le domaine de l’eau. Apports et limites de la coopération décentralisée dans les pays en développement

Directory of Open Access Journals (Sweden)

Raoudha Makkaoui

2010-09-01

Full Text Available La problématique de cet article porte sur le rôle de la coopération décentralisée dans le domaine de l’eau, dans la mesure où celle-ci semble pouvoir apporter des réponses concrètes au problème de l’accès universel à l’eau et constituer une nouvelle option pour la communauté internationale. Dans une première partie, on présentera les problèmes rencontrés par les différents modes de gestion de l’eau dans les pays en développement et la façon dont ils ont successivement tenté de satisfaire à certains objectifs bien précis (accès universel à l’eau, réduction des coûts, prise en compte des besoins prioritaires. Dans une deuxième partie, sur la base d’une initiative de coopération décentralisée entre le Conseil régional de Seine-Saint-Denis et la ville marocaine de Figuig, on s’interrogera sur les apports et limites de cette nouvelle forme de partenariat participatif afin d’en évaluer la pérennité ainsi que la « soutenabilité sociale », montrant, de ce fait, sa proximité avec l’économie solidaire.Our paper builds on this issue of decentralized cooperation in the field of water management. Cooperation between decentralized entities in order to ensure the access to safe drinking water for all now constitutes in many places a preferred water governance option. Therefore, in the first part, we will provide an overview of the current difficulties encountered by the various forms of water management in developing countries, showing the solutions that they successively brought to specific issues (access for all, cost reduction, priority needs. In the second part, we will address the particular case of decentralized cooperation between the General Council of Seine-Saint-Denis in the suburbs of Paris, France, in partnership with the city of Figuig in Morocco. We review the insights and limits of such processes that refer to the people’s capabilities, at both individual and collective levels, in

Secuencia reguladora de la expresión específica en antera de un gen y su empleo en la producción de plantas androestériles y semillas híbridas

OpenAIRE

Gómez Jiménez, María Dolores; Cañas Clemente, Luis Antonio; Madueño Albi, Francisco; Beltrán Porter, José Pío

2000-01-01

Agricultura. La presente invención se relaciona con la obtención de secuencias de ADN reguladoras (promotores) y, usando dichas secuencias, la construcción de nuevos genes quiméricos capaces de expresarse de forma específica en las anteras de plantas transgénicas. La invención también se refiere a la obtención de plantas androestériles y semillas híbridas.

Teoría de situación específica de autotrascendencia en dependientes del alcohol en proceso de recuperación

Directory of Open Access Journals (Sweden)

Linda Azucena Rodríguez-Puente

2016-01-01

Full Text Available La creación de modelos y teorías de enfermería, enfocadas en fenómenos específicos, contribuye a la práctica y el desarrollo de la dis-ciplina de enfermería.Objetivo:presentar una derivación teórica y proponer un modelo sobre la teoría de autotrascendencia en personasdependientes del alcohol en proceso de recuperación.Materiales y métodos:se realizó una derivación teórica mediante la metodologíapropuesta por Walker y Avant.Resultados:adaptación del Modelo de Autotrascendencia en personas dependientes del alcohol en proce-so de recuperación en Alcohólicos Anónimos.Conclusiones:el modelo puede ser útil para explicar cómo las personas dependientes delalcohol, que se encuentran en tratamiento, logran el bienestar y cuáles son los factores que influyen durante el proceso.

Contribuciones del factor general y de los factores específicos en la relación entre inteligencia y rendimiento escolar Contributions of the general and the specific factors for the intelligence and school achievement relationship

Directory of Open Access Journals (Sweden)

Leandro S. Almeida

2009-11-01

Full Text Available

En este artículo se pretende analizar en qué medida, factores más específicos de la cognición, asociados a contenido verbal, numérico o figurativo, complementan un factor más general de raciocinio en la predicción del rendimiento escolar de los alumnos, al inicio y final de la adolescencia. A una muestra de estudiantes portugueses (n=4.899 entre el 5º y el 12º año de escolaridad, se le aplicó una Batería de Pruebas de Raciocinio en sus tres versiones. El rendimiento escolar de los alumnos se estimó en base a sus clasificaciones en Lengua Portuguesa y Matemáticas. El modelo de ecuaciones estructurales mostró un mayor impacto del factor general (inteligencia fluida-inductiva asociado a todas las pruebas de la BPR en la predicción del rendimiento escolar, observándose que esa significación disminuía progresivamente a lo largo de la escolaridad. Por otro lado, elementos específicos de cada prueba entraron en un segundo modelo, especialmente, en el grupo de los alumnos más jóvenes (5º y 6º año. Entre el 7º y el 9º año las contribuciones específicas de las pruebas se refieren, sobre todo, a la prueba de raciocinio verbal (la prueba de raciocinio numérico aparece también en el 9º año. Así, aún reconociendo la relevancia del factor g en la explicación del rendimiento académico, componentes cognitivos específicos pueden también contribuir para asociar inteligencia y realización académica.

Palabras clave: Inteligencia, factor g, factores específicos, Gf-Gc, rendimiento académico.

This paper aims to analyse the extent to which factors more specific cognition, content associated with verbal, numerical or figurative, complement a reasoning general factor in predicting students´ academic achievement at the beginning and the end of adolescence. Taking a Portuguese students sample (n=4,899 from 5th to 12th grades, the reasoning tests battery (BPR – Bateria de Provas de Raciocínio was administrated

Aspectos psicológicos específicos del cáncer en las mujeres

Directory of Open Access Journals (Sweden)

Die Trill, María

2015-06-01

Full Text Available The differences in the psychosocial aspects of different types of cancer in men and women are mainly based on gender variables. However, the specific way in which gender influences adaptation to cancer is not completely defined and it has also been very poorly studied. Gender differences are not only evident in the physical impact of cancer, but also in quality of life, in the psychosocial differences, in the confronting styles and in the adaptation of the patient’s partners to the process of the disease. It is necessary to identify women’s specific psychosocial needs in more detail in order to be able to develop specific programs which keep in mind the gender differences in the way oncologic disease is confronted, as well as in the process of making clinical decisions and in the variables required to optimise their quality of life.Las diferencias en los aspectos psicosociales de diferentes tipos de cáncer en hombres y mujeres están basadas fundamentalmente en variables de género. Sin embargo, la forma concreta en la que influye el género en la adaptación al cáncer no está del todo definida, y desde luego, muy poco estudiada. Las diferencias de género no solo son evidentes en el impacto físico del cáncer sino también en la calidad de vida, en las diferencias psicosociales, en los estilos de afrontamiento y en la adaptación de las parejas de los pacientes al proceso de enfermedad. Es necesario identificar con más detalle las necesidades psicosociales específicas de la mujer con el fin de poder desarrollar programas concretos que tengan en cuenta las diferencias de género en el afrontamiento de la enfermedad oncológica, en el proceso de toma de decisiones médicas, y en las variables necesarias para la optimización de su calidad de vida.

Detección de Anticuerpos IgG Específicos para Sarampión mediante la Técnica de Inmunofluorescencia Indirecta

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Mónica Nieto Z

2000-01-01

Full Text Available La técnica de ínmunofluorescencia indirecta para detectar anticuerpos IgG específicos a sarampión (IFI-IgG fue evaluada con la prueba de neutralización por reducción de placas (PRN con 128 muestras de suero de personas con edades entre 0 y 15 años, 64 con antecedente de vacunación y 64 sin éste antecedente. El IFI-IgG alcanzó una sensibilidad de 80,4% y una especificidad de 100,0%, mostrando ser una prueba sencilla, reproducible, y tener correlación con PRN, aunque menos sensible que ésta última, especialmente cuando la PRN estimó títulos bajos de anticuerpos. Se concluye que la técnica IFI-IgG puede ser usada como método de rutina para la confirmación de sarampión en muestras de fase aguda y convalesciente de la enfermedad (sueros pareados, así como para estudios de prevalencia de anticuerpos en la comunidad, aunque no reemplazaría a la PRN.

Ressonância magnética do fígado com contraste hepato-específico: experiência clínica inicial no Brasil

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Leonardo Kayat Bittencourt

2013-06-01

Full Text Available Os autores relatam a experiência clínica inicial em um serviço privado no Brasil do uso do ácido gadoxético como meio de contraste hepato-específico em exames de ressonância magnética (RM. Esta substância, recentemente liberada para uso comercial no país, pode ser especificamente captada pelos hepatócitos, atingindo um pico de concentração em cerca de 10-20 minutos após a administração endovenosa. Dentre as principais indicações para seu uso em exames de RM, figuram: diagnóstico de carcinoma hepatocelular, detecção e planejamento terapêutico de metástases hepáticas, e a diferenciação entre hiperplasia nodular focal e adenoma hepatocelular.

Contracción, hinchamiento y peso específico aparente de madera de eucalipto colorado (Eucalyptus tereticornis Smith

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Andrea Cardoso

2013-12-01

Full Text Available Con el objetivo de contribuir al conocimiento del comportamiento de la madera de Eucalyptus tereticornis en Uruguay, se estudió la contracción y el hinchamiento lineal y volumétrico para diferentes condiciones de humedad relativa, a una temperatura de 25 ºC. Se construyó una isoterma parcial dándole importancia a las condiciones de humedad de equilibrio en las que es posible encontrar productos realizados con esta madera en Uruguay, por ejemplo, pisos interiores o exteriores. De cinco árboles de una cortina de 50 años ubicada en el departamento de Durazno se seleccionaron discos a dos alturas. A partir de estas se prepararon probetas para las determinaciones de contracción e hinchamiento. Se encontró que el peso específico aparente básico fue de 0,630, al 12% de contenido de humedad fue de 0,859 y al 15 % de 0,872. La contracción radial, tangencial y volumétrica fue de 7,04%, 14,70% y 20,64%, respectivamente, y el hinchamiento radial fue de 7,61%, el tangencial de 17,61% y 26,62% el volumétrico. Sobre la isoterma se observó una diferencia esperable entre la curva de sorción y la de desorción en el rango de humedad relativa estudiado de 53% a 84%.

Construction of a differential thermal analysis installation; Realisation d'une installation d'analyse thermique differentielle

Energy Technology Data Exchange (ETDEWEB)

Branche, G; Chantret, F [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1959-07-01

The authors are indicating the characteristics of a D.T.A. installation they built. Experimental rooms, ovens, thermal regulation, recording methods are thoroughly described, with outlining of the requirements to obtain a high sensitivity. Numerous D.T.A. curves relating to argillaceous substances, bituminous shales, and uraniferous compounds are given. (author) [French] Les auteurs donnent les caracteristiques de l'installation d'Analyse Thermique Differentielle qu'ils ont construits. Ils decrivent en detail les chambres d'experiences, les fours, la regulation thermique, l'enregistrement, en insistant sur les conditions necessaires pour obtenir une sensibilite elevee. Ils donnent de nombreuses courbes differentielles relatives des produits argileux, des schistes bitumineux et des composes uraniferes. (auteur)

Conséquences industrielles et écologiques de l'introduction de nouvelles espèces dans les hydrosystèmes continentaux : la moule zébrée et autres espèces invasives

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KHALANSKI M.

1997-01-01

Full Text Available Les eaux de surface sont prélevées pour divers usages industriels, parmi lesquels la production d'énergie électrique représente une large part. Dans les circuits d'eau brute se fixent de nombreuses espèces d'organismes aquatiques, qui perturbent le fonctionnement des installations et sont susceptibles d'entraîner l'indisponibilité de certaines d'entre elles. Dans certains cas, l'irruption de nouvelles espèces pose un problème grave à l'industrie. L'introduction de deux espèces de moules zébrées (genre Dreissena dans les Grands Lacs américains, puis leur extension progressive vers le sud des États-Unis au cours des dernières années, se chiffre par un dommage pour l'industrie estimé à cinq milliards de dollars par an en 2000. L'impact écologique de la moule zébrée en Amérique du Nord a fait l'objet de nombreux travaux ; dans la phase d'extension rapide de l'espèce, il semble significatif. En Europe, la moule zébrée constitue aussi une menace pour les circuits industriels ; c'est pourquoi cette espèce a fait l'objet de nombreuses études, notamment en France sur la Seine, le Rhône et la Moselle. Deux nouvelles espèces invasives sont récemment apparues dans les cours d'eau européens : il s'agit du clam asiatique Corbicula fluminea et d'un amphipode : Corophium curvispinum. Elles s'ajoutent à la liste faunistique des organismes observés dans les circuits de centrales thermiques installées sur les cours d'eau français : spongiaires, hydraires, bryozoaires, mollusques. Pour assurer la disponibilité des circuits, il faut pouvoir contrôler le développement de ces espèces ; ce qui implique une connaissance approfondie de leur biologie et de leur écologie. Les méthodes de lutte actuellement mises en oeuvre au plan industriel, ou qui sont à l'étude, sont brièvement passées en revue.

Ore-forming environment and ore-forming system of carbonaceous-siliceous-pelitic rock type uranium deposit in China

International Nuclear Information System (INIS)

Qi Fucheng; Zhang Zilong; Li Zhixing; He Zhongbo; Wang Wenquan

2012-01-01

It is proposed that there are four types of ore-forming systems about carbonaceous-siliceous-pelitic rock type uranium deposit in China based on systematic study on structural environment and distribution regularity of uraniferous construction of marine carbonaceous-siliceous-pelitic rock in China: continental margin rift valley ore-forming systems, continental margin rifting deep fracture zone ore-forming systems, landmass boundary borderland basin ore-forming systems and epicontinental mobile belt downfaulted aulacogen ore-forming systems. It is propounded definitely that it is controlled by margin rift valley ore-forming systems and continental margin rifting deep fracture zone ore-forming systems for large-scale uranium mineralization of carbonaceous-siliceous-pelitic rock type uranium deposit in China, which is also controlled by uraniferous marine carbonaceous-siliceous-pelitic rock construction made up of silicalite, siliceous phosphorite and carbonaceous-siliceous-pelitic rock, which settled down accompany with submarine backwash and sub marine volcanic eruption in margin rift valley and continental margin rifting mineralizing environment. Continental mar gin rift valley and continental margin rifting thermal sedimentation or exhalation sedimentation is the mechanism of forming large-scale uraniferous marine carbonaceous-siliceous-pelitic rock construction Early Palaeozoic Era in China or large-scale uranium-polymetallic mineralization. (authors)

Determinaciones termogravimétricas y de calor específico de un concentrado comercial de ulexita, entre temperatura ambiente y 1.000 ºC

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Flores, H. R.

2006-12-01

Full Text Available The important amount of hydration water in the ulexite (NaCaB5O9.8H2O, allows using calcination methods to increase its B2O3 content. This paper analyses the thermal decomposition reaction of a preconcentrated ulexite through weight loss measurements, which occur during the heating of samples until 1000 ºC. Determinations of heat content at each temperature were made using an isoperibol calorimeter. The mean specific heat was calculated from these values, and its dependence on temperature was determined. The maximum weight loss was about 32.5 % and the specific heat obtained was 1,13 kJ/kgºC for solid samples and 1,38 kJ/kgºC for fluid samples.The results are useful for the design of the industrial process, in order to determine the thermal requirements for heating calcined ulexite, and to obtain smelted ulexite.

El elevado contenido de agua de hidratación de la ulexita (NaCaB5O9.8H2O permite utilizar la calcinación como método de concentración. En este trabajo se analiza la reacción de descomposición térmica de un preconcentrado de ulexita a través de determinaciones de la pérdida de peso ocurrida durante el calentamiento de la muestra hasta 1000 ºC. Por otra parte, se ha determinado el valor del calor sensible a cada temperatura ensayada mediante un calorímetro tipo isoperibol y se ha calculado el calor específico medio de la muestra calcinada, así como su variación con la temperatura. Se obtuvieron pérdidas de peso de 32,5 % y valores del calor específico de 1,13 kJ/kgºC para muestras sólidas y 1,38 kJ/kgºC para las fluidas. Los resultados son de utilidad para el diseño del proceso industrial, para la determinación del requerimiento térmico para el calentamiento de ulexita calcinada y para la obtención de una frita.

La regulación específica de las asociaciones de consumidores de ámbito autonómico: situación y reformas necesarias

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Jose-Gabriel Ruiz Gonzalez

2014-03-01

Full Text Available Dentro del marco fijado por la Ley Orgánica 1/2002, reguladora del derecho de asociación, tanto el Estado como las Comunidades Autónomas pueden normar por ley ordinaria dentro de sus respectivas competencias el régimen jurídico de las asociaciones de consumidores. Así ha hecho el Estado con la Ley 44/2006, de Mejora de la Protección de los Consumidores y Usuarios, que estableció el régimen jurídico básico de aplicación a todas las asociaciones de consumidores. También todas las Comunidades Autónomas, ejerciendo sus competencias, han dictado leyes estableciendo la regulación específica de las asociaciones de consumidores de ámbito autonómico. El objeto de este trabajo es analizar la regulación específica que han establecido las distintas Comunidades Autónomas respecto de las asociaciones de consumidores de ámbito autonómico, estudiar su adecuación a la legislación básica del Estado y plantear las reformas legislativas a acometer para que estas organizaciones puedan cumplir con su finalidad constitucional. Within the organic framework of the Organic Law 1/2002, which regulates the right of association, both the State and the self-governing communities may rule by means of statutory law and within their competences, their legal system. An example of this is the Improvement of Consumer and User Protection Act (44/2006, which established a basic legal basis applicable to all consumers’ associations, according to the powers vested the Spanish Constitution. Also the self-governing communities, in exercise of his competences for the protection of the consumer, have dictated laws that regulate the specific system of these associations when they have an area of regional action. The main aim of the present paper is to study this specific system established by the self-governing communities, his adequacy to the basic legislation of the State and determinate the legal reforms to realize in order that they could expire with his

Vegetative rhythm of some woody species; Rythmes de vegetation de quelques especes ligneuses

Energy Technology Data Exchange (ETDEWEB)

Gagnaire, J [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

1965-07-01

aeriennes se ralentissent. Dans les memes conditions climatiques naturelles chacune de ces phases debute et se termine a des dates variables selon l'espece et la variete consideree: - a Grenoble, la dormance absolue a commence en septembre chez les thuyas, en debut octobre chez les erables, un peu plus tard chez les epiceas, en debut novembre chez les peupliers. (auteurs)

Revisión de la utilización en el área de observación de urgencias: validez y fiabilidad de una adaptación específica del protocolo AEP.

OpenAIRE

Ferrer Tarrés, Joan Maria

2003-01-01

Fundamento: Los servicios de urgencia constituyen una de las principales puertas de acceso al sistema sanitario. La preocupación por el aumento de la demanda urgente y por su uso indiscriminado, estimula la necesidad de revisar la utilización y organizar áreas alternativas a la hospitalización convencional.Objetivo: Evaluar la aplicabilidad específica de los procedimientos de revisión de la utilización en la atención de las urgencias. Diseñar un protocolo AEP adaptado a las áreas de observaci...

Evolução do processo terapêutico fonoaudiológico no Distúrbio Específico de Linguagem (DEL: relato de caso

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Ana Paola Nicolielo

2014-10-01

Full Text Available O objetivo deste estudo foi descrever a evolução clínica de uma criança do gênero feminino, nove anos de idade, com diagnóstico de Distúrbio Específico da Linguagem atendida na Clínica de Linguagem Infantil da FOB-USP. Realizou-se acompanhamento longitudinal, por meio de análise de prontuário e filmagens. A intervenção fonoaudiológica iniciou quando a criança apresentava cinco anos com queixa de alterações fonológicas e prejuízos na inteligibilidade de fala. Constatou-se processos fonológicos não mais esperados para a idade, alterações semântico-lexicais, sintáticas, pragmáticas, e em processos perceptivos auditivos, estando a linguagem receptiva preservada. A intervenção teve como principal objetivo a organização dos subsistemas linguísticos principalmente da habilidade de processamento de informações. Após um ano, houve evolução dos aspectos trabalhados, exceto do aspecto fonológico, que teve evolução menos significante. Atividades direcionadas a linguagem escrita foram inseridas quando a criança iniciou o ensino fundamental. Após 42 meses de intervenção, houve evolução do aspecto fonológico. Entretanto, esta evolução ainda não é observada na fala espontânea. As alterações neste aspecto exercem grande influência no desempenho da linguagem escrita. A habilidade de consciência fonológica está adequada, entretanto, há dificuldade na conversão fonema/grafema, resultando em desempenho aquém do esperado na linguagem escrita. Ainda, há comprometimento no processamento da informação linguística, além de persistência nas alterações, que acarretam defasagens no processo de alfabetização. Acreditamos que para conduzir o processo terapêutico é necessário compreender a natureza das dificuldades linguísticas, desenvolvendo estratégias específicas voltadas principalmente ao processamento da informação linguística e a aprendizagem, proporcionando habilidades e capacitando o indiv

Characteristics of isotope geology of sandstone-type uranium deposit in Turpan-Hami Basin

International Nuclear Information System (INIS)

Liu Hanbin; Xia Yuliang; Lin Jinrong; Fan Guang

2003-01-01

This paper expounds the isotope characteristics of in-situ leachable sandstone-type uranium deposit of Shihongtan in the southwestern part of Turpan-Hami basin. The results suggest that uranium mineralization age of 48 ± 2 Ma and 28 ± 4 Ma are obtained. The ages of the porphyritic granite and gneissic granite from the southwestern area are 422 ± 5 Ma and 268 ± 23 Ma. The U-Pb age of clastic zircons from ore-bearing sandstone is 283 ± 67 Ma, which is corresponding to the age of gneissic granite of the provenance area indicating the material source of uraniferous sandstone.Based. The sources are uraniferous sandstone accumulated during the deposition and the uranium leached from provenance area rocks by weathering. (authors)

A Comparative Study of the Adoption of Three Types of Agricultural ...

African Journals Online (AJOL)

Celle-ci portait sur le taux d'adoption de nouvelles variétés du maïs et du manioc, l'adoption de nouvelles cultures dont le niébé et le soja, et enfin l'adoption des cultures en couloirs qui est une nouvelle technologie de gestion des champs. On est parti de l'idée que les trois types d'innovation technologique possèdent ...

Grants and awards: Gender equality and scaling digital innovation ...

International Development Research Centre (IDRC) Digital Library (Canada)

... gender equality is central to global development policy and practice. ... the provision of employment, and leadership development pathways. ... Perspectives asiatiques : Une nouvelle croissance reposant sur une nouvelle productivité.

Método para determinação de volume específico como padrão de qualidade do polvilho azedo e sucedâneos

Directory of Open Access Journals (Sweden)

Vitor Hugo dos Santos BRITO

2015-03-01

Full Text Available Objetivou-se estabelecer um método para a determinação da expansão como critério de qualidade do polvilho azedo e sucedâneos. Três tipos de amidos de mandioca foram avaliados: Polvilho Azedo (padrão, Expandex® e Amido Nativo. As amostras foram condicionadas diretamente em moldes de silicone e metal revestido com politetrafluoretileno e forneadas sob condições controladas de temperatura 200 ºC ou 250 °C e tempo 20 ou 25 minutos. O método proposto foi avaliado pela repetitividade do volume específico (relação volume:massa e os resultados foram comparados com os obtidos por método tradicional com manuseio dos ingredientes com água fervente e moldeamento manual em bolas, posteriormente forneadas em assadeira de alumínio untada, assadas nas mesmas condições. A seleção do melhor método levou em conta os maiores valores para volume específico (cm3 g–1 e menores variações entre as repetições. Para a fôrma de silicone, os melhores resultados foram obtidos nas condições de 200 °C e 25 min (8,89 cm3 g–1 com 1,46% de variabilidade, que proporcionou massas suficientemente resistentes ao manuseio para permitir as medidas. Para moldes de politetrafluoroetileno as melhores condições foram temperatura de 200 °C durante o tempo de 20 minutos (8,16 cm3 g–1 com 7,59% de variabilidade. A amostra de Expandex® apresentou a mesma resposta que o polvilho azedo às variáveis de temperatura de forno e tempo de assamento, porém com valores maiores. A presença residual de grânulos intactos mostrou que a gelatinização do amido não foi completa nas condições de forneamento. O método proposto apresentou facilidade na manipulação e o tempo necessário foi apenas aquele necessário para a elaboração da pasta com água e o forneamento.

Respuesta IgE específica anti-Blomia tropicalis en niños asmáticos residentes en Santa Marta, una ciudad del Caribe colombiano

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Dary Luz Mendoza Meza

2013-10-01

Full Text Available ResumenBlomia tropicalis es un ácaro intradomiciliario predominante en Colombia. Sin embargo, existe poca información disponible sobre la sensibilización a este y otros ácaros intradomiciliarios en pacientes asmáticos de Santa Marta. El propósito de este estudio fue establecer la respuesta IgE específica contra el ácaro B. tropicalis en pacientes pediátricos asmáticos de Santa Marta. La respuesta IgE específica se determinó por ELISA indirecto en 77 niños con diagnóstico de asma bronquial alérgica. Las fracciones alergénicas mayoritarias de B. tropicalis se identificaron por Western Blotting usando un extracto de proteínas de B. tropicalis. Setenta y seis (98.7% niños presentaron niveles elevados de IgE total, 48 (88% tenían IgE anti- B. tropicalis positiva. El Western Blot identificó 16 fracciones alergénicas con rango entre 80- 21 kDa. Estos resultados indican que los alérgenos del ácaro B. tropicalis deben incluirse en el diagnóstico exacto de la sensibilización a los ácaros del polvo doméstico en Santa Marta, Colombia. (DUAZARY 2011, 9 - 16AbstractBlomia tropicalis is the predominant indoor mite in Colombia, nevertheless there is not enough information about sensitization to this and other indoor mites, in the asthmatic patients living in Santa Marta. The purpose of this study was to establish the specific IgE responses against to B. tropicalis in pediatric asthmatic patients in Santa Marta. Specific IgE responses were determined by indirect ELISA in 77 children with bronchial asthma. The B. tropicalis major allergenic fractions were identified by Western Blotting using a B. tropicalis protein extract. Seventy six (98.7% children showed high levels of total IgE, 48 (88% had IgE anti-B. tropicalis positive. Sixteen allergenic fractions, between 80 – 21 kDa, were identified by Western Blotting. These results indicate that the B. tropicalisallergens must be included in the precise diagnosis of sensitization to house

Vie-Nouvelle

African Journals Online (AJOL)

Chrystelle ATINKPAHOUN

influent of wastewater treatment plant, greywater, etc. (Kafi et al. ... pollutant loadings related to suspended solids, bound metal ... treatment system for the domestic wastewater. (greywater and ...... thesis, Polytechnic Institute of Lorraine,. Nancy ...

Nouvelle cuisine

CERN Document Server

2007-01-01

Diners at CERN's Restaurant No. 1 have been adjusting to some temporary arrangements while building work takes place in the main service area. The essential renovation will bring many improvements in the near future. The restaurant before restoration. A huge white marquee erected on a green lawn greets the eye. The sight is familiar in the summer months, but the sharp chill in the air disrupts the scene. Instead of a mid-summer's day, it's actually the middle of January. This apparently strange reversal of seasons is a way of providing an additional dining and service area outside Restaurant No. 1. As renovations get underway inside, the mysterious hum of drills and the hollow echo of hammering behind scaffold boards raise our curiosity about what is in-store. 'Everything will be better,' says Mario Zanolini, head waiter of Restaurant No. 1. 'It will be more comfortable for the customers. The free-flow area will be bigger and there will be 7 tills instead of the previous 5.' These are just for starters. ...

Causas e soluções da desigualdade entre negros e brancos: raça ou classe? Políticas específicas ou políticas universalistas?

Directory of Open Access Journals (Sweden)

Wellington Gil Rodrigues

2017-01-01

Full Text Available Este artigo tem como objetivo apresentar os principais argumentos utilizados no debate sobre as causas das desigualdades entre negros e brancos no Brasil enfatizando as análises de classe e as análises de raça e as possíveis soluções para essa desigualdade, políticas universalistas e políticas específicas. Procura-se demonstrar que o antagonismo entre essas análises pode ser superado em favor de uma análise integradora a qual resulta na adoção de políticas públicas que garantam democraticamente igualdade de acesso ao ensino superior considerando as especificidades dos grupos excluídos sem descuidar das necessidades da população em geral.

Treatment of phosphorus-uraniferous solution

International Nuclear Information System (INIS)

Araujo Figueiredo, C. de.

1984-01-01

A solvent extraction process for the recovery of uranium from Itataia wet process phosphoric acid was studied. The proposed process consists of two extraction cycles. Uranium, reduced to its tetravalent state, is extracted in the first cycle using octylpyrosphoric acid (OPPA) in a kerosene type diluent. Stripping is accomplished with concentrated raffinate phosphoric acid and an oxidizing agent, in order to convert U (IV) to its hexavalent state. The strip solution from the first cycle is processed in the second cycle with the synergistic combination of di-( 2- ethylhexyl) phosphoric acid and tri-n-octylphosphine oxide (D2EHPA-TOPO). The extract is scrubbed and uranium is stripped with ammonium carbonate solution and recovered as a commercial concentrate. The results obtained from batch tests were used to set up a bench scale array of mixer settlers so as to demonstrate the process. (Author) [pt

Known uraniferous occurrences in Colombia

International Nuclear Information System (INIS)

Rodriguez, H.; Aluja, J.A.; Pfeiffer, J.; Cortes, L.A.

1981-01-01

On the basis of an internal report entitled 'Possibilities of Uranium in Colombia' compiled by the author in 1973, and as a result of work done by the foreign companies TOTAL-MINATOME (France) and ENUSA (Spain) using carborne radiometric techniques, ground surveys (plus occasional aerial prospecting) and geochemical methods (sediments and waters), approximately 260 uranium anomalies (in 1973 the figure was 106) have been discovered after covering 30% of the areas considered under priorities I, II and III (321,000 km 2 ), together with 16,000 km of the national road network (+-44,000 km). In addition to supporting the original selection, these results indicate considerable variation in the geological conditions and metallogenic associations, which IAN, MINATOME and ENUSA have now begun to evaluate in the hope of obtaining specific data by the end of 1980. (author)

Some carbonates from Lagoa Real uranium province, State of Bahia: studies on fluid inclusion and stable isotope

International Nuclear Information System (INIS)

Fuzikawa, K.

1982-01-01

The geochemical conditions of the uraniferous carbonates of Lagoa Real province were studied using the fluid inclusions method and the isotopic determinations of the carbon and oxygen of these carbonates. (A.B.) [pt

Lower respiratory tract infection caused by respiratory syncytial virus in infants: the role played by specific antibodies Infecção por virus sincicial respiratório: o papel dos anticorpos séricos específicos

Directory of Open Access Journals (Sweden)

Sandra E. Vieira

2007-01-01

conhecimento é importante para o desenvolvimento de medidas terapêuticas e profiláticas. OBJETIVOS: Avaliar: os tipos e genótipos do vírus sincicial que causam infecção respiratória em lactentes e a associação dos anticorpos séricos subtipo-específicos com a ocorrência de infecção; a presença de anticorpos subtipo-específicos nas mães e sua associação com o perfil de anticorpos da criança. MÉTODOS: Estudo prospectivo incluindo lactentes hospitalizados com infecção respiratória. Foi coletada secreção de nasofaringe para investigação viral usando imunofluorescência indireta e cultivo viral. Foi coletado sangue para pesquisa de anticorpos usando o sistema Luminex Multiplex. RESULTADOS: Avaliados 192 lactentes: 60,9% com vírus sincicial (73,5% - A e 20,5% - B. Seis genótipos de vírus sincicial respiratório foram identificados: A5,A2,B3,B5,A7 e B4. A soroprevalência dos anticorpos subtipos-específicos foi alta. A presença e o nível de anticorpos subtipos-específicos foram semelhantes, independentemente da presença de infecção, tipo e genótipo do vírus. As mães e as crianças apresentaram perfis semelhantes de anticorpos. CONCLUSÕES: A prevalência dos anticorpos subtipos-específicos foi elevada mas estes anticorpos não conferiram proteção, independentemente do tipo/genótipo do vírus. A semelhança dos perfis de anticorpos das mães e das crianças foi compatível com transmissão transplacentária.

La catalyse d'épuration des gaz d'échappement automobiles. Situation actuelle et nouvelles orientations Catalytic Automotive Exhaust Gas Depollution. Present Status and New Trends

Directory of Open Access Journals (Sweden)

Prigent M.

2006-11-01

Full Text Available Cet article passe en revue les différents systèmes catalytiques de post-traitement utilisés actuellement sur la plupart des automobiles pour limiter leurs rejets de polluants. Les systèmes sont différenciés par leur mode de fonctionnement, le type de moteur à dépolluer (deux-temps, quatre-temps, diesel ou essence ou par leur mode de réalisation. Les nouvelles orientations, prévues pour respecter les futures réglementations antipollution, sont également décrites. On montre que certains véhicules prototypes, équipés de moteurs à combustion interne, sont capables d'avoir des émissions très proches de zéro tout comme les véhicules électriques. A review is made of the various types of exhaust gas aftertreatment systems presently used on most vehicles to reduce pollutant emissions. The systems are differentiated by their mode of action, according to the engine type to be depolluted (two-stroke, four-stroke, diesel or spark-ignition, and by their type of make-up. The major developments foreseen in the future, in view of compliance with the new legislations, are described. It is shown that some prototype vehicles with internal combustion engines are able to emit pollutant quantities really close to zero, such as electric cars.

Diferencias en la distancia de lanzamiento y velocidad de balón según el puesto específico en jugadores de balonmano sub-18. (Differences in the throwing distance and ball velocity by playing position in under-18 handball players.

Directory of Open Access Journals (Sweden)

Javier Sampedro Molinuelo

2011-01-01

Full Text Available ResumenEl presente estudio ha analizado las diferencias entre puestos específicos ofensivos en la distancia delanzamiento con balón medicinal pesado y liviano y en la velocidad de lanzamiento con y sin oposición en jugadores en formación. Para ello, cincuenta y ocho jugadores realizaron pruebas de progresiva especificidad: lanzamiento con balón medicinal pesado (LBMP y ligero (LBML, velocidad de lanzamiento sin (VL y con oposición (VLO.VLO fue menor a VL en todos los puestos específicos, con diferencias significativas en los jugadores laterales (p AbstractThis study aims to analyze the differences in throwing distance with overweight ball and throwing velocity without and with opposition according to the playing positions in trainees handball players. For this purpose, fifty-eight players were assessed in four specific progress throwing situations: throwing with heavy medicinal ball (THMB and light medicinal ball (TLMB, throwing velocity without (TV and with opposition (TVO.TVO was less than TV in all playing positions, with significant differences in back (p doi:10.5232/ricyde2011.02202

Compared biokinetic and biological studies of chronic and acute inhalations of uranium compounds in the rat; Etudes biocinetique et biologique comparees d'inhalations chroniques et aigues de composes uraniferes chez le rat

Energy Technology Data Exchange (ETDEWEB)

Monleau, M

2005-12-15

Uranium is a natural, radioactive heavy metal, widely used in the nuclear industry in various chemical and isotopic forms. Its use in the fuel cycle involves the risk of radiological exposure for the workers, mainly via the inhalation of uranium particles. According to the workplace configuration, uranium contaminations can be acute or repeated, involve various chemical forms and different levels of enrichment, as well as involving one or several components. The dosimetric concepts and models available for workers' radiological protection, as well as most of the studies of the biological effects, correspond to acute exposure situations. Moreover the processes leading to pathological effects are little known in vivo. In this context, the main question is to know whether exposures due to repeated inhalation by rats induce the element kinetics and toxicity, which may be different from those observed after an acute exposure. In this study, comparison of the experimental and theoretical biokinetics of an insoluble uranium repeatedly inhaled over three weeks shows that a chronic contamination is correctly modelled, except for bone retention, by the sum of acute, successive and independent incorporations. Moreover, the kinetics of a soluble uranium inhaled irregularly can be modified by previous repeated exposure to an insoluble uranium. In certain cases therefore, exposure to uranium could modify its biokinetics during later exposures. At a toxicological level, the study demonstrates that the uranium particles inhaled repeatedly induce behavioural disruptions and genotoxic effects resulting in various sorts of DNA damage, in several cell types and certainly depending on the quantity inhaled. Exposures involving several uraniferous components produce a synergy effect. Moreover, repeated inhalations worsen the genotoxic effects in comparison to an acute exposure. This work demonstrates the importance of not ignoring the effects of the repetition of uranium exposure. It

Equipo adiabático para medida del coeficiente de absorción específico de un material sometido a un campo magnético alterno y método para realizar dicha medida

OpenAIRE

Mediano, Arturo; Natividad, Eva; Palacio, Fernando; Castro, Miguel

2007-01-01

Equipo adiabático para medida del coeficiente de absorción específico de un material sometido a un campo magnético alterno y método para realizar dicha medida. En esta patente se describe un equipo que permite medir de forma adiabática el incremento de temperatura experimentado por aquellos materiales que presentan mecanismos activos de disipación de calor al someterlos a un campo magnético alterno. Conocida esta magnitud y el tiempo de aplicación del campo y, conocien...

Nuevos adyuvantes en la inmunoterapia específica de las enfermedades alérgicas: estudio de aspectos inmunológicos, celulares y repercusión funcional respiratoria en un modelo animal de asma bronquial

OpenAIRE

Vázquez de la Torre Gaspar, María, María

2015-01-01

INTRODUCCIÓN: Las sales de aluminio se vienen utilizando tradicionalmente, como adyuvante de la ITE s.c. convencional. La identificación de adyuvantes alternativos que indujeran una respuesta Th1 y T reguladora, mejoraría la eficacia de la ITE como tratamiento para el asma y otras enfermedades alérgicas. OBJETIVOS: El objetivo general de este proyecto es la comparación de la eficacia, clínica e inmunológica, de diferentes adyuvantes para inmunoterapia específica de las enfermedades alérgicas...

Non increased neuron-specific enolase concentration in cerebrospinal fluid during first febrile seizures and a year follow-up in pediatric patients No incrementos en la concentración de enolasa específica de neurona en el líquido cefalorraquídeo durante el primer ataque febril y al año en pacientes pediátricos

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ALBERTO J. DORTA-CONTRERAS

1998-09-01

Full Text Available Febrile seizures are the commonest acute neurological disorder of early childhood. Studies suggested that febrile seizures are previous acute events from a more serious neurological problem. Due to neuron-specific enolase is generally accepted as a marker for neuropathological processes in the brain, 16 pediatric patients were studied during their first seizures and a year after it. Neuron-specific enolase in cerebrospinal fluid and blood were analysed by an immune enzyme assay. Non pathological neuron-specific enolase values were obtained in both periods in the group of patients. There were no significative differences when paired series statistics test was performed with 95% of confidence. Neuron-specific enolase appears not to be a marker for febrile seizures because its concentration not be increased in cerebrospinal fluid in this group of patients.Los ataques febriles constituyen el trastorno neurológico agudo más común en la infancia temprana. Existen estudios que sugieren que los ataques febriles son eventos agudos previos a problemas neurológicos más severos. Debido a que la enolasa específica de neurona está aceptada generalmente como marcador de procesos neuropatológicos en el cerebro, se estudiaran 16 pacientes pediátricos durante su primer ataque y al año de este. La enolasa específica de neurona en el líquido cefalorraquídeo y sangre fue analizada por una prueba inmunoenzimática. No se obtuvieron valores patológicos de enolasa específica de neurona en ambos períodos en el grupo de pacientes. No hubo diferencias significativas al aplicar el test de series apareadas con un 95% de confianza. La enolasa específica de neurona parece no ser un marcador para ataques febriles porque su concentración no se incrementa en este grupo de pacientes.

Curvas de fusión de regiones genómicas específicas: una herramienta prometedora para el diagnóstico y tipificación de las especies causantes de la leishmaniasis cutánea en Colombia.

Science.gov (United States)

Marin, Johana; Urrea, Daniel; Muskus, Carlos; Echeverry, María Clara; Mejía, Ana María; Triana, Omar

2017-12-01

Introducción. La leishmaniasis cutánea es una enfermedad causada por parásitos del género Leishmania que tiene gran incidencia en Colombia. El diagnóstico y la identificación de la especie infecciosa son factores críticos en el momento de escoger e iniciar el tratamiento. Actualmente, los métodos de diagnóstico y tipificación requieren procedimientos complejos, por lo que es necesario validar nuevos marcadores moleculares y métodos que simplifiquen el proceso.Objetivo. Desarrollar una herramienta basada en la reacción en cadena de la polimerasa (PCR) con curvas de fusión (High Resolution Melting; PCR-HRM) para el diagnóstico y tipificación de las tres especies de Leishmania de importancia epidemiológica en casos de leishmaniasis cutánea en Colombia.Materiales y métodos. Los genomas de Leishmania panamensis, L. braziliensis y L. guyanensis se compararon mediante métodos bioinformáticos. Las regiones específicas de especie identificadas se validaron mediante PCR. Para los marcadores seleccionados se diseñó una PCR-HRM y se estimaron algunos parámetros de validez y seguridad usando aislamientos de pacientes colombianos caracterizados previamente mediante PCR y análisis de polimorfismos en la longitud de los fragmentos de restricción (Restriction Fragment Length Polymorphism - RFLP; PCR-RFLP) del gen hsp70.Resultados. El análisis genómico comparativo mostró 24 regiones específicas de especie. Sin embargo, la validación mediante PCR solo identificó un marcador específico para cada especie de Leishmania. Los otros marcadores mostraron amplificación cruzada. El límite de detección para los tres marcadores seleccionados fue de un parásito, mientras que la sensibilidad, la especificidad, el valor predictivo positivo y el negativo fueron de 91,4, 100, 100 y 75 %, respectivamente.Conclusiones. Las tres regiones seleccionadas pueden emplearse como marcadores moleculares en el diagnóstico y tipificación de las especies causantes de la

The prospecting and - research of uranium in Brazil

International Nuclear Information System (INIS)

Forman, J.

1981-01-01

The Nuclebras methodology used for the uranium prospecting and uranium research is described. Tjhe uraniferous potential is evaluated and the historical aspects of the four mainly uranium reserves are presented. (L.H.L.L.) [pt

Precipitação média anual e vazão específica média de longa duração, na Bacia do São Francisco Specific yield discharge and mean precipitation in São Francisco Basin

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Fernando F. Pruski

2004-12-01

Full Text Available O Rio São Francisco abrange uma área de drenagem da ordem de 640.000 km² e é responsável pela sustentabilidade de 503 municípios situados na bacia, onde vivem cerca de 14 milhões de pessoas. Neste trabalho analisou-se a variação da precipitação média anual e da vazão específica média de longa duração na Bacia do São Francisco. Foram analisados os dados hidrológicos de 178 estações pluviométricas e 77 estações fluviométricas, sendo a vazão específica média de longa duração obtida dividindo-se a vazão média anual pela área de drenagem da estação fluviométrica considerada e a precipitação média em cada área de drenagem, calculada pelo método do Polígono de Thiessen. Os resultados obtidos permitiram as seguintes conclusões: as precipitações diminuem da nascente para a foz do São Francisco, e as vazões específicas médias de longa duração diminuem ao longo do Rio São Francisco, sendo a máxima vazão específica igual a 22,61 L s-1 km-2, em Iguatama, primeira estação situada neste, e a mínima, igual a 4,22 L s-1 km-2, em Traipu, última estação desse rio.The São Francisco River drains an area of 640,000 km² and is responsible for the sustainability of the 503 municipalities in the basin where 14 million people live. This study was undertaken to investigate the mean precipitation and the specific yield discharge in the São Francisco Basin. The analysis was made considering 178 rain-gauge stations and 77 stations to measure stream flow. The specific yield discharge was obtained by dividing the mean annual discharge by the drainage area upstream from the station, and the mean precipitation in the upstream area from each station was obtained by the Thiessen polygon method. The results indicated that the mean precipitation decreased from the Upper São Francisco to Lower São Francisco, and the specific yield discharge decreases along the river, the maximum specific discharge was 22.6 L s-1 km-2

New progress of the study on uranium-gold association

International Nuclear Information System (INIS)

Feng Mingyue; Sun Zhifu

1992-01-01

Through the study on heavy minerals from the uraniferous granite-pegmatite it is found that nature gold is associated with uraninite, which provides the new information for the study on uranium-gold association and its metallogenesis

New progress of the study on uranium-gold association

Energy Technology Data Exchange (ETDEWEB)

Mingyue, Feng; Zhifu, Sun [Beijing Research Inst. of Uranium Geology (China)

1992-07-01

Through the study on heavy minerals from the uraniferous granite-pegmatite it is found that nature gold is associated with uraninite, which provides the new information for the study on uranium-gold association and its metallogenesis.

Educación física en los libros de texto escolares anteriores al franquismo (II; Cartillas y manuales específicos. Physical education in Spanish school textbooks priior to Francoism (II: Ementary treatises and specific handbooks.

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Antonio David Galera Pérez

2017-06-01

Full Text Available (ES Las obras específicas para la Educación Física escolar anteriores a 1939 recomiendan como principales contenidos los juegos y la gimnasia educativa y en menor medida los paseos y excursiones, y el canto y la música; encontramos asimismo un aspecto avanzado de interdisciplinariedad: la recomendación de intercalar pausas activas entre materias no corporales, que sería recogida por el plan de 1937 de la República, pero nunca más posteriormente. No existen diferencias señaladas entre obras generales (estudiadas en un artículo anterior y las obras específicas aquí abordadas, así como tampoco entre las obras publicadas durante la I Restauración (1875-1931 y durante la II República (1931-1939. (EN Prior to 1939, most of Spanish textbooks specific for Physical Education matter in Elementary education mainly recommend games and gymnastics and to a smaller extent walks and outings, and singing and music; we also find an interdisciplinary advanced aspect: the recommendation for inserting the so-called active pauses, included in the 1937 curricular design but nevermore. There are no outstanding differences between general textbooks (revised in a previous article and the specific ones we are studying here, neither between works published during Spanish 1st. Restoration (1875-1931 nor during 2nd. Republic (1931-1939.

Uso e conhecimento ortográfico no transtorno específico da leitura Orthographic knowledge and use in children with dyslexia

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Rosana Siqueira Dias

2008-01-01

Full Text Available OBJETIVO: Investigar como escolares com Transtorno Específico de Leitura (TLE aplicam em suas escritas a regra de correspondência fono-grafêmica independente do contexto e como identificam e analisam os erros que produzem na escrita, segundo as variáveis: freqüência de aparecimento do item lingüístico e a série do escolar. MÉTODOS: Foram analisados e comparados os erros de escrita obtida a partir de ditado de palavras de alta e baixa freqüência e pseudopalavras, de escolares de 1ª a 4ª série da rede particular de ensino fundamental. Avaliaram-se 56 escolares: 28 com TLE constituíram o grupo pesquisa e 28 sem queixas ou alterações, pareados por idade, sexo e série, o grupo de comparação. Justificativas dos erros e acertos de escrita foram gravadas e comparadas. RESULTADOS: Os escolares do grupo pesquisa mostraram pior desempenho quando comparados com o de comparação. Além disso, observou-se diminuição dos erros, conforme a progressão da escolaridade, principalmente na escrita de palavras de alta freqüência. Os escolares do grupo pesquisa apresentaram maior dificuldade em analisar os itens lingüísticos escritos e reconhecer as escritas corretas. CONCLUSÕES: As crianças com transtorno específico de leitura apresentaram maior dificuldade em escrever e analisar a escrita de ortografia transparente. O efeito da freqüência do item lingüístico facilitou a identificação do erro. Nesse grupo de escolares os erros diminuíram com a progressão das séries e variaram conforme o item lingüístico.PURPOSE: To investigate how children with dyslexia use the phonographemic correspondence rule in their writing regardless of context and how they identify and analyze their writing mistakes according to the variables: frequency of occurrence of the linguistic item and school grade. METHODS: The writing errors observed on a task of dictation of high- and low-frequency words and pseudowords were analyzes and compared. Fifty

Estudio de la influencia de la superfície específica de los materiales reciclados procedentes de RCDS, en la medida del impacto ambiental a través de procesos de lixiviación

OpenAIRE

Sarmiento Mantilla, Adriana Carolina

2011-01-01

Desde la perspectiva ambiental, la peligrosidad de un elemento no siempre obedece a la cantidad total presente de este en un residuo, sino a la movilidad o capacidad de disolverse en contacto con agua y otras sustancias. Esta capacidad de lixiviar está determinada por parámetros químicos, ambientales y físicos, y entre estos últimos el tamaño de partícula y su superficie específica. Mediante este trabajo se pretende analizar la variabilidad de los compuestos lixiviados y su comportam...

Compared biokinetic and biological studies of chronic and acute inhalations of uranium compounds in the rat; Etudes biocinetique et biologique comparees d'inhalations chroniques et aigues de composes uraniferes chez le rat

Energy Technology Data Exchange (ETDEWEB)

Monleau, M

2005-12-15

Uranium is a natural, radioactive heavy metal, widely used in the nuclear industry in various chemical and isotopic forms. Its use in the fuel cycle involves the risk of radiological exposure for the workers, mainly via the inhalation of uranium particles. According to the workplace configuration, uranium contaminations can be acute or repeated, involve various chemical forms and different levels of enrichment, as well as involving one or several components. The dosimetric concepts and models available for workers' radiological protection, as well as most of the studies of the biological effects, correspond to acute exposure situations. Moreover the processes leading to pathological effects are little known in vivo. In this context, the main question is to know whether exposures due to repeated inhalation by rats induce the element kinetics and toxicity, which may be different from those observed after an acute exposure. In this study, comparison of the experimental and theoretical biokinetics of an insoluble uranium repeatedly inhaled over three weeks shows that a chronic contamination is correctly modelled, except for bone retention, by the sum of acute, successive and independent incorporations. Moreover, the kinetics of a soluble uranium inhaled irregularly can be modified by previous repeated exposure to an insoluble uranium. In certain cases therefore, exposure to uranium could modify its biokinetics during later exposures. At a toxicological level, the study demonstrates that the uranium particles inhaled repeatedly induce behavioural disruptions and genotoxic effects resulting in various sorts of DNA damage, in several cell types and certainly depending on the quantity inhaled. Exposures involving several uraniferous components produce a synergy effect. Moreover, repeated inhalations worsen the genotoxic effects in comparison to an acute exposure. This work demonstrates the importance of not ignoring the effects of the repetition of uranium exposure

Study of superconductors of the second type in the lead-thallium system; Etude des supraconducteurs de la deuxieme espece du systeme plomb-thallium

Energy Technology Data Exchange (ETDEWEB)

Bon Mardion, G [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

1965-07-01

The author has shown by magnetization measurements on lead-thallium alloys having from 5 to 70 atom per cent of thallium, that superconductors of the second type definitively exist. The results obtained, in particular on the upper critical field H{sub C2} are in good agreement with the models of Ginzburg, Landau, Abrikosov, Gorkov and Goodman. Finally resistivity measurements have confirmed the occurrence of a fourth upper critical field, the existence of which has been theoretically predicted by St James and de Gennes. (author) [French] L'auteur par des mesures d'aimantation sur les alliages plomb-thallium, de composition variant de 5 pour cent a 70 pour cent At. de thallium, a montre qu'il fallait admettre definitivement l'existence des supraconducteurs de la deuxieme espece. Les resultats obtenus, en particulier sur le champ critique superieur H{sub c2} sont en bon accord avec les modeles de Ginzburg, Landau, Abrikosov, Gorkov et Goodman. Enfin des mesures de resistivite ont confirme l'existence d'un quatrieme champ critique superieur H{sub c3}, existence prevue theoriquement par St James et de Gennes. (auteur)

Identificación y análisis de secuencias consenso de RNAs de transferencia aminoácido específicos, según la procedencia biológica

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Carolina Diaz Arenas

2003-01-01

Full Text Available Desde el descubrimiento del código genético se han llevado a cabo varios estudios sobre el tRNA, debido a su gran importancia en la síntesis de proteínas. En este sentido, se realiza el presente estudio sobre la estructura primaria de la molécula y su relación con la teoría de coevolución del código genético, propuesta por Wong (1975. Se construyó una base de datos específica para tRNAs aminoácido específicos, con 10.504 secuencias únicas. Las secuencias se obtuvieron del Genebank y de Mathias Sprinzl y se organizaron en grupos, como sigue: archaebacteria, eubacteria, unicelulares, animales, plantas y cloroplasto. Las secuencias se alinearon usando Clustal y se obtuvieron los consenso con Genedoc, respetando siempre los grupos establecidos. Se empleo una metodología alternativa, en la cual se exploraron homologías desde 100% hasta 60%, en intervalos de 5%. Las secuencias consenso se agruparon mediante el algoritmo Neighbour-joining de Clustal X. Se encontró que las secuencias consenso tienen en promedio 47.30 bases, esto representa el 63.90% de la longitud promedio (74 bases de las secuencias de tRNAs. Las secuencias consenso son ricas en bases con 100% de homología, lo cual representa cerca del 60.80% de la longitud total del consenso. Más aún, los consensos mostraron mayor proporción de bases CG en general. Los siguientes grupos son los más representativos: 1. "(ala,cys" se encontró en eubacteria, unicelulares, animales y cloroplastos. 2. "(ile,ala" se encontró en archaebacteria, eubacteria, unicelulares, plantas y cloroplastos. 3. "(ile,asn" en archaeacteria, unicelulares, animales, plantas y cloroplastos. 4. "(ala,asn" en archaebacteria, unicelulares, plantas y cloroplastos. Estos resultados muestran el alto grado de conservación de la estructura primaria de la molécula de tRNA y sugieren la existencia de huellas sobre el origen del código genético.

Uranium deposits in the Nord-Limousin; Les gites d'uranium du Nord-Limousin

Energy Technology Data Exchange (ETDEWEB)

Sarcia, J A; Sarcia, J A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1958-07-01

The authors briefly consider the region in its geographical and geological setting. They describe the main petrographic, metallogenic and tectonic characteristics of the sector investigated by the Atomic Energy Commission since 1947, stressing the form of uraniferous mineral deposits. This short account is intended as a general presentation of the detailed studies which will follow, of which that dealing with the mine Henriette is the first to be published. (author) [French] Les auteurs replacent rapidement la region dans son cadre geographique et geologique. Ils decrivent les principales caracteristiques petrographiques, metallogeniques et tectoniques du secteur etudie par le Commissariat a I'Energie atomique depuis 1947, en insistant sur le mode de gisement des mineralisations uraniferes. Ces quelques pages sont destinees a la presentation generale des etudes de detail qui suivront, dont celle qui concerne la Mine Henriette est la premiere publiee. (auteur)

Los inicios de la enseñanza de las lenguas para fines específicos en el Real Colegio de Cirugía de la Armada de Cádiz

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Manuel Botella Rodríguez

2007-10-01

Full Text Available En 1748 se funda en Cádiz (España el Real Colegio de Cirugía de la Armada. Uno de los legados más importantes que se conservan de aquella fundación es su valioso catálogo bibliográfico humanístico y científico. Hemos analizado diccionarios y manuales de gramática destinados al aprendizaje de lenguas extranjeras (fundamentalmente francés e inglés con el fin de llevar a cabo un estudio y recrear lo que pudo ser el método de adquisición de lenguas durante los siglos XVIII y XIX y encontrar un posible embrión del aprendizaje de lenguas para fines específicos en la Universidad de Cádiz.

Evaluación de una experiencia significativa en el diseño curricular de un curso de inglés específico con énfasis en TIC

Directory of Open Access Journals (Sweden)

Keiby Caro Oviedo

2015-10-01

Full Text Available Este artículo da cuenta de la evaluación de una experiencia significativa en el diseño curricular de un curso de inglés específico con énfasis en TIC (Tecnologías de la Información y la Comunicación nivel 1, ofrecido por el Centro de Idiomas de la Universidad Simón Bolívar a los estudiantes del programa de Ingeniería de Sistemas durante el segundo semestre de 2011. AbstractThis article reports on the evaluation of significant experience in curriculum design of a specific English course with emphasis on ICT (Information and Communication Technologies Level 1, offered by the Language Centre of the University Simon Bolivar students of Systems Engineering program during the second semester of 2011.

Intranasal sensitization with Blomia Tropicalis antigens induces allergic responses in mice characterized by elevated antigen-specific and non-specific serum ige and peripheral blood eosinophil counts Sensibilização intranasal com antígenos de Blomia tropicalis induz respostas alérgicas em camundos caracterizadas pela elevada contagem de soro IgE antígeno-específico e não específico e de eosinófilos no sangue periférico

Directory of Open Access Journals (Sweden)

Fumiko Takeda

2004-02-01

Full Text Available In order to evaluate the potential allergenicity of Blomia tropicalis (Bt antigen, IgE production of both specific and non-specific for Bt antigen was monitored in BALB/c mice after exposure to the antigen by nasal route. It was evidenced that B. tropicalis contains a functional allergen in its components. The allergenic components, however, when administered intranasally without any adjuvant, did not function to induce IgE response within a short period. On the other hand, intranasal inoculation of Bt antigens augmented serum IgE responses in mice pretreated by a subcutaneous priming injection of the same antigens. Inoculation of Bt antigen without subcutaneous priming injections induced IgE antibody production only when the antigen was continuously administered for a long period of over 24 weeks. Even when the priming injection was absent, the Bt antigen inoculated with cholera toxin (CT as a mucosal adjuvant also significantly augmented the Bt antigen-specific IgE responses depending on the dose of CT co-administered. The present study also demonstrated that Bt antigen/CT-inoculated mice showed increased non-specific serum IgE level and peripheral blood eosinophil rates without noticeable elevations of the total leukocyte counts. The immunoblot analysis demonstrated 5 main antigenic components reactive to IgE antibodies induced. These components at about 44-64 kDa position were considered to be an important candidate antigen for diagnosis of the mite-related allergy.Para avaliar a capacidade alergizante do antígeno da Blomia tropicalis (Bt a produção de IgE específica e não específica a antígeno Bt foi monitorada em camundongos BALB/c após exposição ao antígeno por via nasal. Foi evidenciado que Bt contem um alérgeno funcional em seus componentes. Os componentes alergênicos entretanto, quando administrados por via intra-nasal, sem qualquer adjuvante, não induzem resposta IgE durante um pequeno período. Por outro lado, a inocula

Endometriose de septo retovaginal: doença de diagnóstico e tratamento específicos Rectovaginal septum endometriosis: a disease with specific diagnosis and treatment

Directory of Open Access Journals (Sweden)

Mauricio Simões Abrão

2003-09-01

Full Text Available RACIONAL: O envolvimento do septo retovaginal, reto e sigmóide pela endometriose pode causar sintomas intensos como dismenorréia, dor pélvica, dispareunia de profundidade, tenesmo e proctorragia cíclicos, em mulheres em idade reprodutiva. O diagnóstico pode ser suspeitado diante da história clínica típica e exame ginecológico adequado, ou ainda através de exame retal, enema opaco ou colonoscopia, entre outros. As indicações cirúrgicas, em geral, estão relacionadas à intensidade dos sintomas e falha no tratamento conservador. No entanto, o tratamento de escolha, para este tipo de endometriose, é a ressecção cirúrgica do tecido acometido, a fim de aliviar os sintomas e evitar progressão da doença. A localização correta assim como a avaliação da presença de extensão do processo em direção ao reto, ligamentos uterossacros ou septo retovaginal é extremamente importante para se garantir um tratamento cirúrgico eficaz. OBJETIVO: Descrever os principais aspectos relacionados à endometriose de septo retovaginal e fornecer aos cirurgiões gerais algumas informações específicas sobre esta enigmática doença. CONCLUSÃO: A endometriose de septo retovaginal é doença freqüente, de diagnóstico e tratamento específicos.BACKGROUND: The involvement of the rectovaginal septum, of rectum and sigmoid by endometriosis leads to intense symptoms as dysmenorrhea, pelvic pain, deep dyspareunia, tenesmus and hematochezia in young and middle aged women during periods. The diagnosis can be made by tipycal history and vaginal examination, rectal examination, barium enema, proctoscopy and so on. The indications of operation include severe clinic symptoms and failed conservative therapy. The treatment of choice for this type of endometriosis is the surgical resection of affected tissue, in order to relieve patient symptoms, and avoid disease progression. The correct assessment as to the presence and extension of the endometriosis

Acordo Coletivo com propósito específico e o projeto de lei 4193/2012: as convergências em torno de uma pretensa desregulamentação trabalhista via negociação coletiva.

OpenAIRE

Ana Flavia Dantas Figueirêdo Silva

2014-01-01

A dissertação tem por objetivo analisar o anteprojeto de lei denominado Acordo Coletivo com propósito específico/ Acordo Coletivo Especial-ACE, criado pelo Sindicato dos Metalúrgicos do ABC e entregue no início de 2011 ao Poder Executivo Federal e o projeto de lei 4193 de 2012 de autoria do deputado Irajá Abreu. O anteprojeto propõe alteração legislativa com fim à concretização dos comitês sindicais de empresa, buscando uma suposta democratização nas relações de trabalho com a possibilidad...

Caracterização da comunidade bacteriana endofítica de citros por isolamento, PCR específico e DGGE Characterization of the endophytic bacterial community from citrus by isolation, specific PCR and DGGE

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Paulo Teixeira Lacava

2006-04-01

Full Text Available O objetivo deste trabalho foi caracterizar a comunidade bacteriana endofítica de plantas assintomáticas (escapes e afetadas pela clorose variegada dos citros (CVC por meio de isolamento em meio de cultura, técnica de gradiente desnaturante em gel de eletroforese (DGGE e detecção de Methylobacterium mesophilicum e Xyllela fastidiosa por meio de PCR específico, para estudar esta comunidade e sua relação com a ocorrência da CVC. A análise da comunidade bacteriana via DGGE permitiu a detecção de X. fastidiosa, bem como Klebsiella sp. e Acinetobacter sp. como endófitos de citros. Foram observados também Curtobacterium sp., Pseudomonas sp., Enterobacter sp. e Bacillus spp. Utilizando primers específicos, Methylobacterium mesophilicum e X. fastidiosa também foram observadas, reforçando hipóteses de que estas bactérias podem estar interagindo no interior da planta hospedeira.The aim of this work was to characterize endophytic bacterial community of assintomatic (escape and Citrus Variegated Chlorosis (CVC-affected citrus plants using isolation in culture medium, denaturing gradient gel electrophoresis (DGGE technique and Methylobacterium mesophilicum as well as Xylella fastidiosa specific PCR, allowing to assess this community and its interactions with CVC. The study of bacterial community by DGGE analysis allowed the detection of X. fastidiosa, as well as Klebsiella sp. e Acinetobacter sp., which were not detected previously. Curtobacterium sp., Pseudomonas sp., Enterobacter sp. and Bacillus spp. were also observed as endophyte in citrus plants. Using specific primers Methylobacterium mesophilicum and X. fastidiosa were observed, reinforcing that these bacteria could interact inside the host plant.

Le rapport Coopération pour le développement de l'OCDE souligne ...

International Development Research Centre (IDRC) Digital Library (Canada)

14 févr. 2018 ... Source: Rapport Coopération pour le développement 2017 de l'OCDE ... des nouvelles sources de données et des nouveaux types de données qui ... constituent quelques-unes des nouvelles sources d'information qui offrent ...

Injerto óseo del seno maxilar en la reparación de defectos craneofaciales específicos

Directory of Open Access Journals (Sweden)

José Manuel Díaz Fernández

1998-08-01

Full Text Available Se realizó un estudio retrospectivo a 56 pacientes con defectos anatómicos específicos del complejo craneofacial, en los cuales se emplearon procedimientos reconstructivos con injerto óseo autógeno de la pared anterior del seno maxilar, en el Servicio de Cirugía Maxilofacial del Hospital Provincial "Saturnino Lora" de Santiago de Cuba, desde 1986 hasta 1994. Este tipo de injerto demostró ser seguro en la reparación de las fracturas del suelo orbitario con extensión máxima de 2 x 3 cm, así como en las deficiencias circunscritas del contorno facial en áreas tales como: frontal, pirámide nasal, cuerpo cigomático, apoyo cigomático maxilar, cuerpo mandibular, reborde orbital superior o inferior. La morbilidad posoperatoria fue mínima y la vía de acceso evita la incisión y cicatriz externa y previene complicaciones como el neumotórax, la perforación de la duramadre y la dificultad en la ambulación, a veces presentes en las áreas donantes tradicionales.A retrospective study was performed of 56 patients who had specific craniofacial defects which were treated with reconstructive methods with the autogenous bone graft of the anterior maxillar sinus wall in the Maxillofacial Surgery Service at "Saturnino Lora" Provincial Hospital in Santiago de Cuba province from 1986 to 1994. This type of grafting proved to be safe in the reconstruction of maximum 2 cm long 3 cm wide orbitary floor fractures and of facial configuration defects in such areas as front, nasal pyramide, zigomatic corpus, zigomatic maxillary support, corpus mandibullae, and upper or low orbitary fissure. The post-operation morbility was minimum as well as the access path that prevents the external acarf and complications like pneumothorax, perforation of dura mater and movement difficulties sometimes present in the traditional donor areas.

Report on the progress of work in France [Processing of Low-Grade Uranium Ores]; Rapport sur l'etat d'avancement des travaux en France

Energy Technology Data Exchange (ETDEWEB)

Sugier, P [Direction des productions, CEA, Chatillon-sur-Bagneux (France)

1967-06-15

The uranium minerals dealt with in the mills in France come from districts belonging to the massive uraniferous Hercynian granitic essentially. Their uranium contents are relatively low, ranging mostly between 0,90 and 2%. the deposits occur as veins and stockworks or clusters.

Impact of a glacial uranium deposit on the groundwater quality at Key Lake, Saskatchewan (Canada)

International Nuclear Information System (INIS)

Unland, W.

1981-01-01

Concentrations of radionuclides derived from uraniferous material embedded in a pervious unconsolidated aquifer have been determined at Key Lake. It is concluded that dispersion and retardation can provide safe storage of radioactive waste in shallow aquifers over a long term period. (Auth.)

The photovoltaic ambitious of EDF

International Nuclear Information System (INIS)

Houot, G.

2008-01-01

Added to the wind energy, EDF develops the photovoltaic by its subsidiaries EDF Energies Nouvelles, for the big power plants and EDF Energies Nouvelles Reparties centralized on the market of small installations for roofs. The author analyzes the society management and project concerning the photovoltaic development. (A.L.B.)

Basic data for uranium prospecting in Argentina

International Nuclear Information System (INIS)

Belluco, A.; Rodriguez, E.; Martinez, C.; Marinkeff, K.

1977-01-01

After dealing briefly with the geochemical cycle of uranium in the earth's crust, and indicating the principal conditions under which different types of deposits are formed, the paper goes on to determine the uraniferous are of mainland Argentina (approximately 900000 km 2 ). Since evidence for the presence of uranium and other radioactive elements in many parts of the country has long been available, an attempt was made to systemize the existing information and classify the uraniferous sites so as to determine their temporal, spatial and genetic relationships with the different containing rocks. In addition, a study was made of the factors which contribute to the concentration of uranium in rocks which are accessible to prospecting (litho-stratigraphy, geological history, mettallogenic cycles, etc.). On the basis of these studies and considering the regional geology of Argentina, 21 ''regional environments'' were defined with varying degrees of probability of containing uranium; these environments will be submitted to long-term regional prospecting studies. It was necessary, however, to make a further sub-division into more homogeneous units with more clearly graded levels of priority, with the result that there are 65 ''prospecting units''. Each of these units, in order of priority, will be subjected to systematic prospecting. Exploratory work on a suitable scale will be carried out in the ''uraniferous'' districts of the ''prospecting units''. The main features of Argentine geology relating to the likelihood of uranium occurrences are briefly described, and maps of the large geotechtonic areas and the ''regional environments'' are included. (author)

La participation des acteurs locaux à l’élaboration et l’évaluation des politiques publiques de développement durable  en Nouvelle-Calédonie

Directory of Open Access Journals (Sweden)

Séverine Bouard

2008-11-01

Full Text Available L’objet de cet article est d’explorer les conditions et l’opérationnalité d’une réflexion participative sur le développement durable et ses implications pour élaborer et évaluer des politiques publiques de développement. Après une présentation succincte des controverses dont fait l’objet le concept de développement durable à l’échelle mondiale, nous tenterons de préciser les enjeux de durabilité dans le contexte de la Nouvelle-Calédonie. L’entrée privilégie les articulations entre les trois dimensions de la durabilité, en s’appuyant sur les formes localement perçues de la performance économique, de l’intégrité de l’environnement et de l’équité sociale. Pour illustrer ces enjeux, nous nous intéressons plus précisément à la gestion sociale des impacts d’un important projet industriel d’extraction et de traitement du nickel dans la province Nord de Nouvelle-Calédonie. L’article décrit ensuite les principes à respecter pour la mise en place d’un suivi évaluation concerté entre les différents acteurs, susceptible de faciliter la prise en charge de cette transversalité et la gestion sociale des impacts du projet. Nous partons pour cela des acquis d’un programme de recherche portant sur l’élaboration d’une méthode de suivi évaluation participatif des programmes de développement local en province Nord. Enfin, nous insisterons sur les contraintes à l’efficacité et à la pérennité de dispositifs réellement participatifs, mais aussi à l’application des principes du développement durable, notamment dans le contexte du Pacifique insulaire.The aim of this article is to investigate the conditions and the interests of a participatory reflexion on the sustainable development and its consequences to draw up and to assess development policies. After a brief display of the controversies carried out by the use and sense of the “sustainable development”, we explain what is at

OFFERS FOR OUR MEMBERS

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Association du personnel

2013-01-01

WALIBI Parking gratuit !! Et oui ! désormais le Parking au Parc Walibi est Gratuit !! 2 avantages à cela : - 5 euros d’économie par véhicule, une bonne nouvelle pour le budget ! - Plus d’attente à votre arrivée ! En effet vous êtes orienté à votre arrivée par notre équipe, mais plus d’arrêt ! N’hésitez pas à faire circuler cette bonne nouvelle et profitez-en pour découvrir nos 2 nouveautés 2013 ! - Les plongeurs de l’extrême dans un spectacle intitulé Wet Side Story !! - Une nouvelle attraction pour enfant !   * * * * *

Uraniferous surficial deposits in Southern Africa

International Nuclear Information System (INIS)

Hambleton-Jones, B.B.; Levin, M.; Wagener, G.F.

1986-01-01

Surficial uranium deposits are located in the north-western Cape Province of South Africa, in the Namib Desert east of Walvis Bay in South West Africa/Namibia and in the Serule Block of Botswana. They have been classified into the valley-fill, lacustrine, and pedogenic types. Carnotite is the main uranium-bearing mineral in the larger surficial deposits, with other minerals such as soddyite and phosphuranylite occurring locally. Uraninite or urano-organic complexes occur in the reducing environments of the diatomaceous earth, peat-rich deposits. Economically, the valley-fill type is the most important, with the largest deposits occurring in South West Africa/Namibia. In South West Africa/Namibia the valley-fill surficial uranium deposits occur in the Tumas and Langer Heinrich formations of the Teriary to Recent Namib Group. The Tubas, Langer Heinrich, and Welwitchia deposits are discussed: in them, carnotite occurs in calcareous and gypsiferous fluvial gravels. The pedogenic deposit at Mile 72 occurs in weathered granite and overlying gypcrete and has little economic potential. The economic potential of the surficial deposits in the north-western Cape Province is very limited in comparison with their South West African/Namibian counterparts, but the most important deposits are the lacustrine type, in particular those containing peat and diatomaceous earth. The mechanisms for the precipitation and preservation of the uranium are discussed

A new French uraniferous species: parsonsite

International Nuclear Information System (INIS)

Branche, G.; Chervet, J.; Guillemin, C.

1949-12-01

This report presents the mode of occurrence, the optical properties, the crystallography, and the chemical analysis of the first parsonsite (uranium and lead phosphate) samples found at Lachaux and Grury (Puy-de-Dome, France). The quantitative chemical analysis scheme is given in detail

Structural and Luminescent Characterization of Uraniferous ...

Indian Academy of Sciences (India)

68

information about the oxidation state and form of uranium in this region. ...... equation where A1 and A2 are pre-exponential factors and τ1 and τ2 stands for the lifetime of ..... Uranium, thorium and radium content in phosphate rocks and their.

Nouvelle structure de capteur à courants de Foucault et algorithme associé pour la mesure des propriétés électrique et magnétique d'un métal

Science.gov (United States)

Lê, Minh-Quang; Placko, Dominique

1995-06-01

This paper describes a new structure for eddy-current transducers which improves sensitivity while maintaining high lateral resolution. We have developed an analytical model to allow a model-based inversion from transducers signals to estimate thick and homogeneous plates electrical conductivity, magnetic permeability and/or lift-off. The inversion procedure is described and shows the possibility of a precise simultaneous estimation of the three parameters. Experiments were conducted with magnetic and non magnetic metals. Cet article décrit une nouvelle structure de capteur à courants de Foucault qui permet d'améliorer la sensibilité du capteur tout en conservant sa résolution latérale. Nous avons développé un modèle analytique de ce capteur qui peut être inversé pour estimer la conductivité électrique, la perméabilité magnétique d'une cible homogène et/ou la distance capteur-cible. La procédure d'inversion a été décrite et montre une possibilité d'estimer ces trois paramètres avec précision. L'expérience a été effectuée sur des métaux magnétiques et amagnétiques.

URGENCES NOUVELLE VERSION

CERN Multimedia

Medical Service

2002-01-01

The table of emergency numbers that appeared in Bulletin 10/2002 is out of date. The updated version provided by the Medical Service appears on the following page. Please disregard the previous version. URGENT NEED OF A DOCTOR GENEVAPATIENT NOT FIT TO BE MOVED: Call your family doctor Or SOS MEDECINS (24H/24H) 748 49 50 Or ASSOC. OF GENEVA DOCTORS (7H-23H) 322 20 20 PATIENT CAN BE MOVED: HOPITAL CANTONAL 24 Micheli du Crest 372 33 11 382 33 11 CHILDREN'S HOSPITAL 6 rue Willy Donzé 382 68 18 382 45 55 MATERNITY 24 Micheli du Crest 382 68 16 382 33 11 OPHTALMOLOGY 22 Alcide Jentzer 382 84 00 HOPITAL DE LA TOUR Meyrin 719 61 11 CENTRE MEDICAL DE MEYRIN Champs Fréchets 719 74 00 URGENCES : FIRE BRIGADE 118 FIRE BRIGADE CERN 767 44 44 BESOIN URGENT D'AMBULANCE (GENEVE ET VAUD) : 144 POLICE 117 ANTI-POISON CENTRE 24H/24H 01 251 51 510 EUROPEAN EMERGENCY CALL: 112 FRANCE PATIENT NOT FIT TO BE MOVED: call your family doctor PATIENT CAN BE MOVED: ST. JULIE...

Fobia específica: um estudo transversal com 103 pacientes tratados em ambulatório Specific phobia: a transversal study with one hundred and three outpatients

Directory of Open Access Journals (Sweden)

Mauro Barbosa Terra

2007-01-01

Full Text Available OBJETIVOS: Este estudo tem por objetivo investigar a presença de fobia específica (FE entre pacientes atendidos em um ambulatório de psiquiatria. MÉTODOS: Foi realizado um estudo transversal, no qual foi aplicado o SCID-I em 103 pacientes, para se examinar a ocorrência de fobia específica. Os dados foram analisados por meio de medidas descritivas e mediante os testes de independência baseados na estatística qui-quadrado de Pearson ou no teste exato de Fisher. RESULTADOS: Foi verificada FE em 26,2% dos pacientes. As mulheres tinham duas vezes maior chance de apresentar FE que os homens. Em 96,3% do total de fóbicos, a FE não havia sido identificada pelo psiquiatra com quem se consultavam, e esses pacientes não estavam recebendo tratamento para FE. Entre as comorbidades, o diagnóstico mais freqüente foi depressão, que apareceu em 15,6% da amostra. No total, identificamos 39 fobias, sendo 13 do tipo animal; 12 do tipo ambiente-natural; 3 do tipo sangue-injeção-ferimentos; e 11 do tipo situacional. CONCLUSÃO: A FE tem uma freqüência elevada entre pacientes ambulatoriais, sendo mais comum entre as mulheres. No entanto, na maioria das vezes, esse transtorno não é diagnosticado e assim não recebe tratamento adequado, já que o foco da atenção fica concentrado nas comorbidades.OBJECTIVES: The study was designed to investigate the presence of specific phobias (SP among psychiatric outpatients. METHODS: A transversal study was carried out in which SCID-I was applied to 103 patients to determine the occurrence of specific phobia. The data were reviewed through descriptive measures and independence tests based on Pearson's chi-square test or Fisher's exact test. RESULTS: Specific phobias were found in 26.2% of the patients. Females were twice as likely as males to present SP. In 96.3% of the phobic patients SP had not been diagnosed by their psychiatrists and thus was not being treated. The most common comorbidities among these

Analgésicos inibidores específicos da ciclooxigenase-2: avanços terapêuticos Analgésicos inhibidores específicos de la ciclooxigenase-2: avanzos terapéuticos Specific cyclooxygenase-2 inhibitor analgesics: therapeutic advances

Directory of Open Access Journals (Sweden)

Wilson Andrade Carvalho

2004-06-01

Full Text Available JUSTIFICATIVA E OBJETIVOS: Os antiinflamatórios não-esteroidais (AINE estão entre as drogas mais prescritas e usadas no mundo, incluindo a utilização em Anestesiologia. O propósito desta revisão é discutir alguns aspectos atuais da bioquímica da ciclooxigenase, que vem servindo de base para o desenvolvimento dos novos AINE. CONTEÚDO: Estas drogas exercem suas ações principalmente através da inibição da ciclooxigenase (COX, a enzima chave que catalisa a conversão de ácido araquidônico em prostaglandinas e tromboxanos. Pelo menos duas isoformas da COX já foram identificadas, a COX-1, que é constitutivamente expressa na maioria dos tecidos, e a COX-2, que é uma forma induzível da enzima localizada principalmente nas células e tecidos envolvidos em processos inflamatórios. Com a descoberta da COX-2 e a determinação de sua estrutura, foi possível desenvolver drogas mais seletivas que reduzem a inflamação sem afetar a COX-1, protetora do estômago e rins, dando origem a uma nova geração de compostos antiinflamatórios denominados de inibidores específicos da COX-2. CONCLUSÕES: Embora estes compostos de última geração apresentem menor toxicidade para o trato gastrintestinal, outros efeitos adversos graves têm sido observados, incluindo insuficiência renal e efeitos cardiovasculares, como o infarto agudo do miocárdio e a trombose. A despeito destes efeitos colaterais, estes novos fármacos estão sendo testados em outras condições clínicas, principalmente no tratamento preventivo do câncer e da doença de Alzheimer.JUSTIFICATIVA Y OBJETIVOS: Los antiinflamatorios no-esteroidales (AINE están entre las drogas más prescritas y usadas en el mundo, incluyendo la utilización en Anestesiología. El propósito de esta revisión es discutir algunos aspectos actuales de la bioquímica de la ciclooxigenasis, que viene sirviendo de base para el desenvolvimiento de los nuevos AINE. CONTENIDO: Estas drogas ejercen su acci

La vente des biens nationaux à la fin du XVIIIe siècle, nouvelle donne pour la ville The sale of national assets at the end of the 18th century – a gift to the city

Directory of Open Access Journals (Sweden)

François Antoine

2009-05-01

Full Text Available À la fin de l’Ancien Régime, les villes des Pays-Bas gardaient les traits de villes médiévales sans ordre et faites d’entrelacs de rues et de ruelles. Le caractère corporatif de la production limitait la présence de grands ensembles industriels et les couvents et leurs jardins occupaient une grande partie de la superficie intra et extra muros des cités. Par ailleurs, l’Église était propriétaire d’un important parc immobilier de petites demeures adossées à des églises jusqu’aux importants refuges d’abbayes dominant dans les campagnes de vastes espaces fonciers. Durant la deuxième moitié du xviiie, les autorités habsbourgeoises menèrent une politique tendant à moderniser les villes en faisant, en autres, tomber les enceintes et en donnant une nouvelle affectation aux couvents contemplatifs supprimés. La Révolution française bouleversa ces ensembles urbains en libérant d’un coup une masse très importante de biens immobiliers qui appartenait à l’Église et en modifiant radicalement les modes de production par la suppression des corporations de métiers. La bourgeoisie principalement négociante réussi habilement tirer tous les profits de cette nouvelle donne. Cet effet d’aubaine contribua grandement à faire passer nos régions dans un nouveau stade de leur démarrage industriel.At the end of the Ancien Régime, the towns of the Netherlands retained the characteristics of medieval towns, without any order and consisting of warrens of streets and alleys. The corporative nature of production limited the presence of major industrial complexes and the monasteries and convents, together with their gardens, covered a large part of the urban areas both within and outside city walls. In addition, the church had important property holdings, ranging from small residential properties attached to churches to major abbey residences dominating vast countryside estates. During the second half of the 18th century, the

Uranium and sulphate values from carbonate leach process

International Nuclear Information System (INIS)

Berger, B.

1983-01-01

The process concerns the recovery of uraniferous and sulphur values from liquor resulting from the attack of sulphur containing uraniferous ores by an alkaline solution of sodium carbonate and/or bicarbonate. Ammonia is introduced into the liquor to convert any HCO 3 - to CO 3 2- . The neutralised liquor from this step is then contacted with an anion exchange resin to fix the uranium and sulphate ions, leaving a liquor containing ammonia, sodium carbonate and/or bicarbonate in solution. Uranium and sulphate ions are eluted with an ammonia carbonate and/or bicarbonate solution to yield a solution of ammonium uranyl carbonate complex and ammonium sulphate. The solution is subjected to thermal treatment until a suspension of precipitated ammonium uranate and/or diuranate is obtained in a solution of the ammonium sulphate. Carbon dioxide, ammonia and water vapor are driven off. The precipitated ammonium uranate and/or diuranate is then separated from the solution of ammonium sulphate and the precipitate is calcined to yield uranium trioxide and ammonia

Possibility of applying the gamma-gamma method to the in situ determination of uranium-ore densities; Les possibilites d'application de la methode gamma-gamma a la determination en place de la densite des minerais d'uranium

Energy Technology Data Exchange (ETDEWEB)

Czubek, J; Guitton, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1965-07-01

The principles of the gamma-gamma method are reviewed. It is shown in particular that, under certain conditions, the method makes it possible to obtain a representative measurement of the electronic density. Chemical analyses have been carried out on samples obtained from uranium deposits. The results show that an exact correlation exists between the massive and electronic densities. It is possible to consider the possibility of measuring the density of uranium-containing rocks by the gamma-gamma method. (authors) [French] Les principes de la methode gamma-gamma sont rappeles. En particulier, il est montre que, dans certaines conditions, la methode permet une mesure representative de la densite electronique. Des analyses chimiques ont ete effectuees sur des echantillons provenant de gisements uraniferes. Les resultats indiquent qu'il existe une correlation precise entre leur densite massique et leur densite electronique. Il est possible d'envisager la mesure de la densite des roches uraniferes par la methode gamma-gamma.

Analisis del balance coronal y último nivel artrodesado en escoliosis idiopática lenke 5: parámetros radiográficos específicos

Directory of Open Access Journals (Sweden)

Nicolás Siderakis

2013-12-01

Full Text Available OBJETIVO: Determinar las modificaciones postoperatorias que se producen en el balance coronal de los pacientes con escoliosis idiopática del adolescente (EIA con curvas de Lenke tipo 5, realizando un análisis pre y postoperatorio de los siguientes parámetros radiológicos: último nivel vertebral artrodesado, inclinación de L4, traslación de vértebra apical, obliquidade lumbosacra, ángulo de Cobb y balance coronal previo. MÉTODOS: Se evaluaron 20 pacientes con diagnóstico de EIA con curvas de Lenke tipo 5, con un seguimiento promedio de 36 meses (R: 24 a 48. La edad promedio al momento de la cirugía fue de 15,3 años (R: 13 a 20 años, siendo la distribución por sexo de 16 mujeres y 4 hombres. RESULTADOS: En nuestra serie hemos detectado una correlación directa entre el AVTL y el LSTOA con el balance coronal postoperatorio, tanto en el grupo de los pacientes que mejoraron (14 pacientes, como en aquellos en los que el balance coronal empeoró (6 pacientes. CONCLUSIÓN: De la serie evaluada, fueron el AVTL y el LSTOA, los parámetros radiográficos específicos.

Le role de l'agriculteur dans la protection écologique de l'espace rural

Directory of Open Access Journals (Sweden)

Joseph Hudault

2015-01-01

Full Text Available La définition juridique de l'espace rural. Le rôle de l'agriculteur dans l'espace.Juriste parmi les plus prestigieux de l' Amérique latine, pétri de culture humaniste et fidele a la méthode de pensée d'inspiration romaniste dans laquelle la procédure est antérieure au droit et la loi, l'affirmation d'un principe général qu'il appartient a l'interprete de faire application a l'espece (da mihifaetum dabo tibijus, Adolfo GELSI BIDART a été l'un des premiers a mesurer l'influence du droit de l'environnement sur la substance du droit rural.C'est la raison pour laquelle 1'auteur de ces lignes dédie a la mémoire d'un ami regretté et affectionné ces quelques réflexions sur l' espace rural. Une nouvelle fois, il convient d' attirer l'attention des spécialistes du droit rural sur la nécessité de définir 1'espace rural de fa<;on a lui donner un statut juridique.

Consideraciones en torno a los llamados Bastones de Mando

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Rafael MENÉNDEZ GARCÍA

2009-12-01

Full Text Available RESUMEN: Se examinan las características de los bastones prehistóricos, valorando las especulaciones previas sobre su utilidad. Se establece mediante demostración teórica y práctica su uso como elemento esencial de un arma de caza. Específicamente, el bastón se utilizaría como un director a través del cual pasaba la flecha que era impulsada por la lanzadera.ABSTRACT: The study examines the characteristics of prehistoric batons, evaluates some previous speculations on their use and establishes a clear, practical and demonstrable determination of their purpose as an essential element of a hunting weapon. Specifically, the baton was used as a director through which the spear was passed, consequently projected by what has already been established as a spear thrower.RÉSUMÉ: On examine les caractéristiques des batons préhistoriques en évaluant l'état actuel des connaissances sur son usage. On essaie de prouver par la practique et la théorie une nouvelle hypothèse, selon laquelle le baton serait la partie dormente d'une arme et son but celui de diriger la sagaie qui passe par le trou et qui est impulsée par le propulseur.

Inglés con fines específicos: entonces y ahora English for Specific Purposes: A historical perspective

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Concepción Bueno Velazco

2002-04-01

Full Text Available La enseñanza del Inglés con Fines Específicos (IFE ha logrado ocupar un lugar respetable en el campo de la enseñanza del Inglés como lengua extranjera o como segunda lengua. En los momentos actuales resulta familiar para todos los relacionados con esta especialidad el concepto de Inglés para ingenieros, Inglés con fines turísticos, Inglés para empresarios y hombres de negocios, Inglés para médicos, para enfermeros y para estomatólogos. El presente trabajo tiene como objetivo ofrecer una panorámica de la evolución del IFE desde sus inicios. Para ello se ofrecen las condiciones que propiciaron el surgimiento del IFE hasta llegar a su definición partiendo de criterios inicialmente expuestos en la década del 80 hasta los más recientes aportes en este campo.Por último se abordan muy brevemente las tendencias lingüístico- metodológicas por las que ha atravesado el IFE y su situación en la época actualEnglish teaching with Specific Purposes (ESP has been able to reach a respectable place in the field of English teaching as a foreign or second language. Nowadays, it is familiar to those related to this specialty, the concept of English for engineers, English for tourism, English for managers and businessmen, English for doctors, for nurses and dentists. This work's objective is to offer a panorama of the evolution of ESP from its beginnings. To achieve that, the conditions that propitiated the emergence of the ESP are exposed and that analisis goes on until reaching its definition beginning from the approaches initially exposed in the 80s to the most recent contributions in this area. Finally, the current linguistic and methodological trends ESP has gone through and its current situation are presented

O tratamento da distonia tarefa-específica em músicos: aspectos motores e sensoriais envolvidos no processo

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Rita de Cássia dos Reis Moura

2016-03-01

Full Text Available A distonia é uma desordem de ordem neurológica, caracterizada por descontrole dos movimentos ou de posturas ou ambos, por contração intermitente ou de forma sustentada. A distonia do músico é considerada como uma distonia tarefa-específica, que é deflagrada somente durante a performance musical. Pode ocorrer em qualquer parte do corpo; frequentemente face, músculos do pescoço e membros superiores. O conhecimento dessa doença ocupacional entre a população de músicos no Brasil é pouco difundido. O objetivo deste trabalho é discorrer a respeito das estruturas cerebrais envolvidas no processo motor e da fisiologia envolvida na distonia do músico, bem como dos tratamentos disponíveis no intuito de enfatizar a importância de seu reconhecimento e tratamento precoce e apresentar pesquisa realizada com protocolo de tratamento. O método é um levantamento bibliográfico da fisiologia do controle motor, do desenvolvimento e tratamento da distonia do músico utilizando literatura nacional e internacional e aplicação de protocolo de tratamento estruturado. Como resultados, existe já um corpus bibliográfico consistente na língua inglesa, porém escasso em português, principalmente no quesito tratamento, podemos constatar melhora em diversos aspectos de padrão motor após protocolo de tratamento na avaliação após seis meses, tais como relaxamento, aquisição de maior consciência corporal ao tocar, instabilidade, tremor e dissociação de movimentos. Como conclusão, constata-se a necessidade de implementar a discussão e pesquisa nessa área, principalmente com relação aos tratamentos. Por outro lado, sabe-se que a melhor ferramenta contra esta afecção se encontra no tratamento mais precoce possível.

Análisis de límites y alcances de aranceles específicos y ad-valórem. Caso Alby store

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Stephanie Carolina Tierra Tierra

2015-06-01

Full Text Available Esta investigación tiene por objetivo analizar los límites y alcances de los aranceles y específicos ad-valórem aplicados a los importadores del sector textil y de calzado ecuatoriano, mediante el estudio de caso de las tiendas al detal Alby Store. Se compararon y analizaron las ventas en unidades de ropa y calzado, nacionales e importados desde Panamá, Perú, Colombia y Estados Unidos, entre el 2008 y agosto de 2014, con las variaciones de los aranceles aplicados en este rango de tiempo. De esta manera, se determinó que la salvaguardia de $6 por cada par de zapato impuesta en enero de 2009 afectó en mayor grado a las ventas del calzado que las impuestas a la ropa. En consecuencia, el calzado importado sí fue reemplazado casi en su totalidad por el calzado ecuatoriano en los siete años analizados, ya que los nuevos tributos incrementaron en un buen grado el precio de venta al público de la mercancía. En contraste, la ropa importada no se reemplazó por completo ya que la variedad de modelos es más extensa y moderna que la nacional, por lo que continuó siendo adquirida por los clientes de Alby Store y esto se reflejó en la recuperación en ventas desde el 2011. Palabras clave: Economía de la empresa, política pública y regulaciones

ÉTUDE DE CAS — Cuba : L'innovation agricole à Cuba | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

5 janv. 2011 ... La recherche de solutions de rechange viables. ... Ces observations résument bien une nouvelle approche et une nouvelle attitude à l'égard de la recherche agricole à Cuba, .... principal au CRDI, et Bob Stanley, rédacteur scientifique. ... voir le site de l'Institut international des ressources phytogénétiques ...

Case Studies on Africa and the Middle East | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

21 avr. 2016 ... Voir davantageUne nouvelle vision de la transition en Syrie · Ce que nous faisons · Financement · Ressources · À propos du CRDI. Savoir. Innovation. Solutions. Carrières · Communiquez avec nous · Plan du site. Abonnez-vous à notre bulletin pour recevoir les nouvelles du CRDI chaque mois. Abonnez- ...

Recuperation of uranium and gold in mineral pulps by adsorption

International Nuclear Information System (INIS)

Bruno, J.B.; Amorim, L.O.

1985-06-01

The technological routes for the treatment of the gold and uranium ores are presented. The results obtained during the continuous tests with the uraniferous Ores of Wabo in Somalia are presented. The utilization of 99% of the uranium content in the alkaline pulp is obtained. (C.B.) [pt

Exploration of Uranium. Report to the Government of the Eastern Republic of Uruguay; Prospeccion de uranio. Informe al gobierno de la Republica Oriental del Uruguay

Energy Technology Data Exchange (ETDEWEB)

Muset, J A [International Atomic Energy Agency, Vienna (Austria)

1979-07-01

The Government of Uruguay with IAEA assistance carried out the Uranium prospection project and the evolution of uraniferous minerals resources on this country soil. Several arrangement were did such as the recollection and analysis of the geologic material. The Uranium project began with radiometric anomalies and out crops.

Exploration of Uranium. Report to the Government of the Eastern Republic of Uruguay

International Nuclear Information System (INIS)

Muset, J.A.

1979-01-01

The Government of Uruguay with IAEA assistance carried out the Uranium prospection project and the evolution of uraniferous minerals resources on this country soil. Several arrangement were did such as the recollection and analysis of the geologic material. The Uranium project began with radiometric anomalies and out crops

Análisis de la influencia de la razón de transmisión en la velocidad específica de deslizamiento // Analysis of the influence of the transmission reason in the specific speed of slip

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Orestes González-Quintero

2010-01-01

Full Text Available ResumenLas transmisiones por engranajes pueden sufrir múltiples deterioros durante su funcionamiento yentre las fallas más comunes, propia de las transmisiones no lubricadas, se encuentra el desgaste,que se caracteriza por la disminución del espesor del diente en la zona de la cabeza y del pie, que esdonde mayor velocidad de deslizamiento existe. En este trabajo se exponen las ecuaciones básicaspara el cálculo de las velocidades de deslizamiento, de desplazamiento y específica dedeslizamiento, finalmente, utilizando un programa elaborado en una Hoja de Cálculo de Excel y conel auxilio del software AutoCAD fueron evaluados cuatro casos de transmisiones por engranajescilíndricos de dientes rectos, para determinar la influencia de la relación de transmisión en lavelocidad específica de deslizamiento en ruedas dentadas cilíndricas de dientes rectos.Palabras claves: Engranajes, velocidad de deslizamiento, velocidad de desplazamiento, velocidadespecífica de deslizamiento, desgaste.________________________________________________________________________AbstractGear transmissions can suffer multiple fails during their operation, being wear one of the mostcommon, this fail is characteristic of the not lubricated transmissions, and it is characterized by thedecrease of the thickness of the tooth up and down the tooth height that is where main slidingvelocity exists. In this work the essential equations for the calculation of the sliding, displacementand specific sliding velocity, are exposed, finally, using a program elaborated in a EXCELspreadsheet and with the employment of the software AutoCAD, four cases of spur geartransmissions were evaluated, to determine the influence of the velocity ratio in the specific slidingvelocity.Key words: Gearing, sliding velocity, displacement velocity, specific sliding velocity, wear

Prevalencia de anticuerpos IgG específicos dirigidos a Mycobacterium avium en caprinos y ovinos en el sur de la Guajira y norte del Cesar

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María Fernanda Cepeda

2016-06-01

Full Text Available Introducción: Los departamentos de la Guajira y Cesar son considerados los principales productores de ovinos y caprinos del país, según censo del Instituto Colombiano Agropecuario (ICA en el año 2015. Estas especies animales revisten interés desde el punto de vista sanitario, no solo por los productos obtenidos de ellos, sino también por la capacidad que tienen de ser reservorio de diferentes agentes infecciosos. A la fecha en Colombia no se encuentran reportes relacionados con la prevalencia de agentes infecciosos, como es el caso de Mycobacterium avium en estas poblaciones animales, razón por la cual, en 2015 se comienza a desarrollar un trabajo inter-institucional titulado: “Proyecto Piloto de Excelencia Sanitaria en Ganadería para la Guajira y el Cesar”, proyecto en el que participan entidades públicas y privadas, el cual, anida el presente trabajo. Objetivo: Determinar la prevalencia de M. avium en caprinos y ovinos, con el propósito de diseñar e implementar un perfil sanitario en los municipios del sur de la Guajira y el Norte del Cesar. Materiales y métodos: El presente trabajo corresponde a un estudio descriptivo de corte transversal, que tuvo como universo de estudio una población de 15.300 ovinos y caprinos del sur de la Guajira y norte del Cesar definida por Censo realizado en 2015 por el ICA. Tomado como base esta población, se calculó un tamaño muestral de 998 individuos mediante la herramienta WinEpi versión 2.0 (Zaragoza, España. La determinación de la prevalencia de M. avium se realizará mediante la determinación de la presencia de IgG sérica específica para este agente infeccioso mediante pruebas comerciales de ELISA indirecta, según las recomendaciones del fabricante. Las pruebas serán realizadas a sueros provenientes de muestras sanguíneas de animales incluidos en la muestra calculada, tomadas por veterinarios entrenados en municipios del sur de la Guajira y norte del Cesar, los cuales, fueron

Manual for the application of NURE 1974--1977 aerial gamma-ray spectrometer data

International Nuclear Information System (INIS)

Saunders, D.F.; Potts, M.J.

1977-09-01

This manual was prepared as an aid to those interested in the interpretation and application of high-sensitivity aerial gamma-ray spectrometer data in uranium exploration. Particular emphasis is on the first 10 radiometric surveys performed under the National Uranium Resource Evaluation (NURE) program. The primary purpose of aerial gamma-ray spectrometer surveys in the NURE program is to map regional distributions of near-surface natural radioelements, i.e., the uranium and thorium decay series, and potassium-40. These data along with an understanding of the geochemical behavior of the pertinent isotopes under a variety of conditions allow uranium-enriched areas of the earth's crust (uraniferous provinces) to be identified as part of the regional appraisal phase of prospecting. Uranium ore deposits tend to occur more frequently in these generally enriched regions than elsewhere, and, consequently, uraniferous provinces constitute preferred territory for follow-up exploration methods such as detailed aerial or surface radiometric prospecting, geological studies, etc., to define potential prospects. These in turn may be investigated by still more detailed surface geological studies perhaps supplemented by radon or uranium geochemical surveys and exploration drilling and logging. This manual outlines the fundamentals of uranium geology and geochemistry along with interpretive approaches which may be used to identify statistically and geochemically significant uranium anomalies and uraniferous provinces. Follow-up prospecting methods are summarized along with guides to recent literature. Specific suggestions are made as to interpretive approaches and applicable follow-up prospecting procedures tailored to fit the data characteristics and general environment of each of the first 10 NURE aerial gamma-ray spectrometer surveys performed by Geodata International, Inc. and Texas Instruments Incorporated

Enolasa específica de neurona en dos recién nacidos con depresión ligera al nacer Neuron- specific Enolase in two newborns presenting with moderate depression at birth

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Raisa Bu-Coifiu Fanego

2009-03-01

Full Text Available INTRODUCCIÓN. La enolasa específica de neurona es una isoenzima que se vierte al torrente sanguíneo después de un episodio de daño neuronal. En los procesos de hipoxia neonatal estos valores enzimáticos en suero suelen estar alterados. El objetivo del presente artículo fue estudiar la enolasa específica de neurona en suero de 2 recién nacidos con Apgar bajo y determinar si, en el seguimiento durante un año, dichos pacientes presentaban trastornos del desarrollo psicomotor. MÉTODOS. Se tomaron muestras de suero al momento del nacimiento y a las 72 h siguientes. Se determinaron los niveles de enolasa específica de neurona por un método inmunoenzimático de tipo ELISA. Cada muestra fue evaluada por el método de reacción en cadena de la polimerasa para citomegalovirus, en el Instituto de Inmunología de Wuersburg (Alemania. También se cuantificaron anticuerpos contra citomegalovirus de clase IgM e IgG, en el Laboratorio de Neuroquímica de la Universidad Georg August de Goettingen (Alemania. Se recogieron los datos clínicos de interés de cada recién nacido y al año se citaron a estos pacientes y se les realizó un examen físico para evaluar su neurodesarrollo. RESULTADOS. Las cifras de enolasa estuvieron incrementadas tanto al nacimiento como a las 72 h, con anticuerpos anticitomegalovirus de clase IgG que fueron transferidos de la madre a través de la placenta. No se encontró presencia de este virus en el momento del nacimiento. En el examen físico y neurológico realizado al año se constató que los niños evolucionaban satisfactoriamente hasta esa fecha. CONCLUSIONES. Se recomienda extender el estudio hasta los 3 años de vida y aumentar el número de pacientes estudiados, con énfasis en aquellos casos cuyo Apgar es menor de 5 a los 5 min del nacimiento.INTRODUCTION: Neuron-specific Enolase of is an isoenzyme present in blood stream after a neuronal damage episode. In processes of neonatal hypoxia, these enzymatic values

Declínio de desempenho motor no envelhecimento é específico à tarefa Caída del desempeño motor en el envejecimiento es específico a la tarea Task-specific performance decline in aging

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Luís Augusto Teixeira

2006-12-01

Full Text Available O declínio de desempenho motor característico do envelhecimento tem sido proposto ter como causa um fator único, originário de deterioração da capacidade de processamento central de informação. Por essa proposição, o desempenho motor em diferentes tarefas deveria ser prejudicado similarmente durante o envelhecimento. Para testar essa hipótese, o desempenho sensório-motor de indivíduos fisicamente ativos entre 19 e 73 anos de idade foi estudado em oito tarefas: tempo de reação, tempo de movimento no contato com um alvo, força manual máxima, sincronização, controle de força, toques repetidos com haste vertical, desenhos seqüenciais e toques entre os dedos. A análise dos resultados indicou perfis variáveis de desempenho entre as tarefas motoras na comparação entre as idades, com declínio motor a uma taxa moderada entre 20 e 60 anos para tempo de reação, quedas mais acentuadas de desempenho na transição entre 20 e 40 anos em tarefas requisitando velocidade de execução de movimentos simples ou precisão temporal, quedas mais acentuadas na transição entre 60 e 70 anos para força máxima e habilidade gráfica e manutenção da capacidade de desempenho com o envelhecimento para controle de força manual. Dessa forma, esses resultados revelam-se contraditórios com a hipótese de fator único e oferecem suporte à hipótese alternativa de que a taxa de declínio de desempenho sensório-motor durante o envelhecimento é específica à tarefa.El descenso del desempeño motor, característico del envejecimiento, ha sido propuesto tener como causa un factor único, originario de la deterioración de la capacidad del procesamiento central de información. Por esa proposición, el desempeño motor en diferentes tareas debería ser perjudicado similarmente durante el envejecimiento. Para probar esta hipótesis, el desempeño sensor-motor de individuos físicamente activos entre 19 y 73 años de edad fue estudiado en ocho

Study of new structures adapted to gas-graphite and gas-heavy water reactors; Etude de structures nouvelles adaptees aux reacteurs graphite-gaz et eau lourde-gaz

Energy Technology Data Exchange (ETDEWEB)

Martin, R; Roche, R [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1964-07-01

'EDF d'une part, les conclusions des etudes et essais effectues hors pile d'autre part, conduisent a un changement considerable de la physionomie des reacteurs de la filiere Graphite-Gaz, Les principales modifications envisagees sont analysees dans la communication. L'adoption d'un element combustible annulaire et d'un soufflage descendant permettront d'accroitre considerablement la puissance specifique et la puissance developpee par canal; il en resultera une reduction sensible du nombre des canaux et un accroissement correlatif de la maille du reseau - L'empilement de graphite devra etre adapte a ces nouvelles conditions - Des raisons de securite conduisent a generaliser l'emploi du beton precontraint pour la construction du caisson; elles pourront amener a integrer a l'interieur de celui-ci les echangeurs et l'appareil de manutention du combustible (dispositif dit: 'en grenier'). Une maquette en vraie grandeur de ce grenier a ete construite a Saclay avec la participation d'EURATOM; les resultats d'exploitation en sont presentes, ainsi que des idees de barres de controle de conception nouvelle. En ce qui concerne la filiere Eau-Lourde-Gaz, les etudes sont poursuivies dans deux voies principales; la premiere, qui conserverait l'usage de tubes de force horizontaux, tient compte de l'experience acquise au cours de la construction du reacteur EL4 dont elle constituerait une extrapolation; la seconde, inspiree des etudes poursuivies au titre de la filiere Graphite-Gaz, ferait appel a un caisson en beton precontraint pour tenir la pression, le moderateur etant sensiblement a la pression du fluide refrigerant et le combustible etant dispose dans des canaux verticaux. Les merites respectifs de ces deux variantes sont analyses dans la communication. (auteurs)

Relever le défi d'analyse statistique dans des études en ...

International Development Research Centre (IDRC) Digital Library (Canada)

Le CRDI et Cancer Research UK lancent une nouvelle initiative contre le tabagisme. Le CRDI et Cancer Research UK ont le plaisir d'annoncer le lancement d'une nouvelle initiative d'une durée de cinq ans visant la prévention des maladies liées au tabagisme. Voir davantageLe CRDI et Cancer Research UK lancent une ...

Consolidation d'un leadership concernant les démarches écosanté ...

International Development Research Centre (IDRC) Digital Library (Canada)

Le CRDI et Cancer Research UK lancent une nouvelle initiative contre le tabagisme. Le CRDI et Cancer Research UK ont le plaisir d'annoncer le lancement d'une nouvelle initiative d'une durée de cinq ans visant la prévention des maladies liées au tabagisme. Voir davantageLe CRDI et Cancer Research UK lancent une ...

Campagne antitabac de la Zambie | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Le CRDI et Cancer Research UK lancent une nouvelle initiative contre le tabagisme. Le CRDI et Cancer Research UK ont le plaisir d'annoncer le lancement d'une nouvelle initiative d'une durée de cinq ans visant la prévention des maladies liées au tabagisme. Voir davantageLe CRDI et Cancer Research UK lancent une ...

La evaluación específica del síndrome de Burnout en psicólogos: el "inventario de Burnout de psicólogos"

Directory of Open Access Journals (Sweden)

ANA MARIA T. BENEVIDES PEREIRA

2002-01-01

Full Text Available La investigación del "burnout" se ha extendido a una amplia variedad de profesiones, asistenciales y no asistenciales, sin embargo el estudio del burnout en psicólogos es relativamente escaso a pesar de ser una profesión con alto riesgo de burnout. El "Inventario de Burnout de Psicólogos" (IBP es un instrumento elaborado específicamente para evaluar los procesos de burnout en los psicólogos que consta de tres partes: características profesionales, dimensiones del burnout y sintomatología de estrés asociada. La aplicación del IBP a una muestra de 203 profesionales de la psicología, de lengua española y brasileña, ha mostrado claramente una estructura factorial de tres factores según el modelo asistencial clásico de burnout: cansancio emocional, despersonalización y falta de realización personal. La sintomatología asociada se factorializa en tres dimensiones: consecuencias psicológicas, físicas y sociales. Las tres partes del IBP están altamente asociadas de forma que las características profesionales se asocian al nivel de burnout y los niveles del burnout a la sintomatología percibida.

LA CONVIVENCIA ESCOLAR EN EL INSTITUTO DE EDUCACIÓN SECUNDARIA OBLIGATORIA “MIGUEL ESPINOSA” DE MURCIA. “La convivencia escolar en relación al alumnado con Necesidades Específicas de Apoyo Educativo escolarizado en el Programa de Cualificación Profesional Inicial Especial”

OpenAIRE

Alacid-Carrillo, Beatriz

2014-01-01

El presente Trabajo Fin de Máster consiste en un estudio que persigue la finalidad de conocer la percepción que tiene la comunidad educativa sobre la convivencia escolar en lo referente al alumnado con necesidades específicas de apoyo educativo escolarizado en un Instituto de Educación Secundaria Obligatoria. Es esencial analizar la convivencia escolar del alumnado con discapacidad escolarizado en dicho centro educativo, ya que nos encontramos con una sociedad heterogénea y diversa, tal y com...

Tirer avantage d'Office 2010, Expression Web et Lync

CERN Multimedia

CERN. Geneva

2012-01-01

Une attention particulière sera portée sur: Les changements de l'interface utilisateur comparé à Office 2007 et Sharepoint 2007. Les nouvelles fonctionnalités qui améliorent la productivité de l'utilisateur. Le but de cette session et de familiariser les utilisateurs à ces nouvelles versions de logiciels dans le contexte d'une migration vers Windows 7.

Évaluation du nouveau programme d'études du College of Health ...

International Development Research Centre (IDRC) Digital Library (Canada)

Ces changements étaient jugés nécessaires pour préparer les professionnels de la santé aux nouvelles exigences de la prestation de services de santé décentralisés, pour juguler les nouvelles pandémies comme celles du VIH/sida et du virus Ébola, ainsi que pour répondre aux besoins des malades dans les zones ...

Fonds canadien de recherche sur la sécurité alimentaire ...

International Development Research Centre (IDRC) Digital Library (Canada)

Les projets du FCRSAI génèrent des connaissances et des innovations telles que de nouvelles compétences et de nouveaux outils, des pratiques agricoles améliorées et de nouvelles façons d'accroître la productivité agricole durable, de favoriser les entreprises agroalimentaires dirigées par des jeunes et de diversifier les ...

Primera incursión en la obtención de curieles libre de patógenos específicos en Cuba

Directory of Open Access Journals (Sweden)

Bárbara O González Navarro

2014-01-01

Full Text Available Título corto: Primera incursión en la obtención de curieles SPF en Cuba Título en ingles: First foray into the production of specific pathogen-free guinea pigs in Cuba Resumen: Resultados confiables y económicos solo son obtenidos cuando los animales de experimentación son aislados de factores ambientales y biológicos, implantándose en el biomodelo una microbiota normal, lejos de la presencia de microorganismos patógenos. El objetivo de la investigación fue obtener curieles libre de patógenos específicos por cesárea aséptica, mantenidos en aisladores y alimentados con dietas estériles. Se realizaron 26 histerectomías. Los animales fueron alimentados con una fórmula modificada (L-477 en forma de papilla hasta los 21 días y permanentemente después la C-484 sólida y granulada, esterilizadas a 121oC/20 minutos o a 1,5Mrad. Además fueron suplementados con vitamina C y B1. El forraje o heno fue consumido a partir de la primera generación. La microbiota gastrointestinal se administró por vía oral en 0,5 ml de una dilución de 10-6/g de contenido de la porción final del íleon, ciego y principio del colon de curieles, a las 24 y 48 horas del nacimiento. Se utilizó para el monitoreo microbiológico caldo Tioglicolato, caldo Triptona Soya y caldo Saboraud incubados aeróbicamente a temperatura de 55, 37y 25oC respectivamente. Se obtuvieron 51 neonatos. La mortalidad más alta se registró entre los primeros 10 días de edad (58,8%. Se lograron 12 animales (3 machos y 9 hembras, 6 de las hembras se reprodujeron aproximadamente a los 9 meses de edad, lográndose 11 crías por parto normal. La metodología aplicada permitió obtener curieles libres de Salmonella sp, Pasteurella sp, Streptococcus del tipo A y C, Bordetella bronchiseptica, Toxoplasma gondii, Virus Sendai y parásitos internos y externos. Palabras clave: curieles, libre de patógenos específicos, aisladores, histerectomía y dietas estériles. Abstract

Desarrollo de un lenguaje de dominio específico para sistemas de gestión de aprendizaje y su herramienta de implementación “KiwiDSM” mediante ingeniería dirigida por modelos

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Carlos Enrique Montenegro Marín

2010-09-01

Full Text Available El artículo presenta la creación de KiwiDSM: herramienta de lenguaje de dominio específico (DSL, que apoyada en ingeniería dirigida por modelos (MDE, permite modelar módulos que conforman un sistema de gestión del aprendizaje (LMS en el área de comunicaciones; esta herramienta es independiente de la plataforma. La validación de la propuesta se realizó desplegando un modelo hecho con KiwiDSM sobre una plataforma LMS particular llamada Atutor. Las pruebas realizadas evidenciaron que al trabajar con MDE se reduce el tiempo y esfuerzo en la creación y despliegue de los módulos modelados sobre Atutor y que el metamodelo planteado es compatible con los requerimientos de dicho LMS.

The sedimentology of uranium-bearing sandstones on the farm Kaffersfontein 328, Beaufort West area

International Nuclear Information System (INIS)

Cole, D.I.

1979-10-01

The sedimentology of uranium-bearing sandstones on the farm Kaffersfontein 328 was studied by use of 23 vertical profiles measured across and adjacent to 3 mineralised deposits. The profiles consist of 18 field sections and 5 borehole logs. The vertical profiles basically consist of a succession of sedimentary facies. A total of 18 facies were recognised within the fluvial sandstone sequence according to the criteria of grain-size and sedimentary structures. Transitions between the facies were subjected to a Markov chain analysis in order to delineate Markov-dependent transitions. Uranium mineralisation coincides with areas of thicker sandstone, usually where channel over-deepening has taken place. It always occurs above the base of a channel, which often marks the base of the fluvial sandstone sequence. Irregularities in the base of the channel probably caused interruptions to the flow of uraniferous solutions and allowed sufficient time for the precipitation of the uranium. Carbonaceous debris is always associated with the mineralisation and most likely acted as an indirect reductant for the precipitation of uranium from solution. The direct reductant was most probably H 2 S produced by anaerobic bacteria acting on the carbonaceous debris. The mineralisation is confined to the coarser-grained sedimentary facies, which suggests that permeability was an important control on the mineralisation. These facies probably acted as suitable aquifers for the transport of uraniferous solutions. Horizontally bedded sandstone facies comprises 41 per cent of the total cumulative thickness of mineralisation. This facies represents a higher stream power and may consequently contain more carbonaceous material derived from plants, which were eroded from upstream areas. The nature of the bedding may also have provided a more effective permeability zone for the transport of uraniferous solutions prior to precipitation of the uranium

Exploración de diferencias de género en los predictores de dominio general y específico de las habilidades matemáticas tempranas

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Estíbaliz Aragón Mendizábal

2016-07-01

Full Text Available El objetivo de este trabajo consistió en el estudio de las diferencias de género en el conocimiento matemático temprano y en sus variables predictoras en 200 alumnos de 5 años de edad. Se evaluaron como variables de dominio general: alfabetización emergente, inteligencia fluida, memoria de trabajo y a corto plazo y funciones ejecutivas. Los contrastes estadísticos no arrojaron diferencias significativas entre niños y niñas. El análisis discriminante no mostró un patrón característico en función del género. Sin embargo, el análisis de regresión lineal por pasos indicó que aunque la alfabetización emergente y la inteligencia fluida explicaron la variación en el conocimiento matemático en niños(as, la tercera variable explicativa fue la memoria a corto plazo para las niñas y la memoria de trabajo en niños. Se concluye que las diferencias de género no fueron estadísticamente significativas en relación a las variables predictoras de dominio general y específico en las habilidades matemáticas tempranas.

Correlation of the activity of the {sup 238} U in soil and {sup 222} Rn in domiciles, with the rocks of cities of the Estado de Chihuahua; Correlacion de la actividad del {sup 238} U en suelo y {sup 222} Rn en domicilios, con las rocas de ciudades del Estado de Chihuahua

Energy Technology Data Exchange (ETDEWEB)

Colmenero S, L.; Villalba, L.; Montero C, M.E. [Centro de Investigacion en Materiales Avanzados (CIMAV), Av. Miguel de Cervantes 120 C.P. 31109 Chihuahua (Mexico)]. e-mail: luis.colmenero@cimav.edu.mx

2004-07-01

The state of Chihuahua has numerous locations of uranium, being Pena Blanca the great and more important location of the country. Diverse rock types with important quantities of uranium are distributed by the whole state. The igneous extrusive acid rocks are those that have bigger quantity of uranium, like they are the rhyolites and dacites and these rocks are located in enough proportion by the whole state. Some of the main cities of the state are near to locations or uraniferous rocks, as Aldama, Nuevo Casas Grandes, Chihuahua, Jimenez and Bocoyna, other important cities are not near important locations. It was determined specific activity by gamma spectroscopy of the series of the {sup 238} U in soils and determination of the radon concentration in domiciles of the main cities of the state. They were found high specific activity values in soil in eight of the thirteen analyzed cities and important radon concentrations in three cities. It was found relationship among the specific activity in soil in near cities to uraniferous locations. (Author)

Correlation of the activity of the 238 U in soil and 222 Rn in domiciles, with the rocks of cities of the Estado de Chihuahua

International Nuclear Information System (INIS)

Colmenero S, L.; Villalba, L.; Montero C, M.E.

2004-01-01

The state of Chihuahua has numerous locations of uranium, being Pena Blanca the great and more important location of the country. Diverse rock types with important quantities of uranium are distributed by the whole state. The igneous extrusive acid rocks are those that have bigger quantity of uranium, like they are the rhyolites and dacites and these rocks are located in enough proportion by the whole state. Some of the main cities of the state are near to locations or uraniferous rocks, as Aldama, Nuevo Casas Grandes, Chihuahua, Jimenez and Bocoyna, other important cities are not near important locations. It was determined specific activity by gamma spectroscopy of the series of the 238 U in soils and determination of the radon concentration in domiciles of the main cities of the state. They were found high specific activity values in soil in eight of the thirteen analyzed cities and important radon concentrations in three cities. It was found relationship among the specific activity in soil in near cities to uraniferous locations. (Author)

The sedimentology of uranium-bearing sandstones on the Waterval portion of the farm Brandewyns Gat 214, Beaufort West area

International Nuclear Information System (INIS)

Cole, D.I.

1980-08-01

The sedimentology of two uranium-bearing sandstones on the Waterval portion of the farm Brandewyns Gat 214 was studied by means of 36 vertical profiles measured across, through and adjacent to 4 mineralised deposits. The vertical profiles basically consist of a succession of sedimentary facies. A total of 19 facies was recognised within the fluvial sandstone sequence according to the criteria of grain-size and sedimentary structure. Transitions between the facies were subjected to a Markov chain analysis in order to delineate Markov-dependent transitions. Uranium mineralisation occurs mostly within the lower half of the fluvial sandstone sequence and is confined to the coarser-grained sedimentary facies. These facies probably acted as suitable aquifers for the transport of uraniferous solutions and permeability differences between the sandstone and the underlying mudstone and siltstone must have restricted these solutions to the lower half of the channel sandstone. The massive mudstone facies contains 13 per cent of the total cumulative thickness of mineralisation. This mineralisation probably originated from synchronously deposited tuffaceous material. Subsequent migration of uraniferous solutions may have concentrated the uranium

Unconventional uranium resources in China

International Nuclear Information System (INIS)

Qi Fucheng; Zhang Zilong; Li Zhixing; Wang Zhiming; He Zhongbo; Wang Wenquan

2011-01-01

Unconventional uranium resources in China mainly include black-rock series, peat, salt lake and evaporitic rocks. Among them, uraniferous black-rock series, uraniferous phosphorite and uranium-polymetallic phosphorite connected with black-rock series are important types for the sustainable support of uranium resources in China. Down-faulting and epocontinental rift in continental margin are the most important and beneficial ore-forming environment for unconventional uranium resources of black-rock series in China and produced a series of geochemistry combinations, such as, U-Cd, U-V-Mo, U-V-Re, U-V-Ni-Mo and U-V-Ni-Mo-Re-Tl. Unconventional uranium resources of black-rock series in China is related to uranium-rich marine black-rock series which are made up of hydrothermal sedimentary siliceous rocks, siliceous phospheorite and carbonaceous-siliceous-pelitic rock and settled in the continental margin down-faulting and epicontinental rift accompanied by submarine backwash and marine volcano eruption. Hydrothermal sedimentation or exhalation sedimentary is the mechanism to form unconventional uranium resources in black-rock series or large scale uranium-polymetallic mineralization in China. (authors)

Fatores de risco para a síndrome hipertensiva específica da gravidez - doi:10.5020/18061230.2009.p48

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Zélia Maria de Sousa Araújo Santos

2012-01-01

Full Text Available Objetivo: Identificar os fatores de risco da Síndrome Hipertensiva Específica da Gestação (SHEG em gestantes acompanhadas em núcleo de atenção médica integrada. Método: Estudo exploratório-descritivo realizado com 100 gestantes acompanhadas no ambulatório de pré-natal do Núcleo de Atenção Médica Integrada (NAMI da Universidade de Fortaleza (UNIFOR, em Fortaleza-CE, independentemente de idade, estado civil e renda familiar. Os dados foram coletados por meio de entrevista estruturada, entre março e abril de 2008, organizados em tabelas e analisados com base na literatura pertinente. Resultados: A amostra pesquisada tinha idade entre 17 a 31 anos, cor parda, união estável, renda familiar de 1 a 2 salários mínimos, ensino fundamental; eram prendas do lar, seguiam o catolicismo e habitavam moradia própria. Houve o predomínio da multigestação, da primiparidade e do abortamento na faixa etária de 17 a 21 anos. As gestantes apresentavam os fatores de risco da SHEG - idades extremas; multiparidade; alteração de pressão arterial na gravidez atual e na anterior; história familiar e pregressa de pré-eclâmpsia e eclâmpsia, entre a terceira e quarta gestações; conflitos emocionais e gestação múltipla. Conclusões: Constatou-se a presença de fatores de risco para a SHEG na amostra investigada, exceto a obesidade e a paternidade diversa; entre os dados obstétricos dessas mulheres, predominaram multigestação, primiparidade e abortamento.

Les chercheurs inquiets malgre les promesses de Claudie Haignere

CERN Multimedia

2003-01-01

"Le 9 avril, lors d'un colloque sur l'innovation, la ministre deleguee a la recherche et aux nouvelles technologies a annonce, "en plein accord, dit-elle, avec le premier ministre", que "les etablissements publics a caractere scientifique et technologique (EPST) ne connaitront en 2003 aucune nouvelle annulation de credits de paiement et d'autorisations de programme" et que "les reserves de precaution sont entierement levees" (1 page).

CRDI

International Development Research Centre (IDRC) Digital Library (Canada)

et des soins médicaux à l'étranger, et de nombreux Canadiens continuaient ..... de nouvelles variétés adaptées aux besoins des pauvres. C. R. D ..... médecine, par exemple —, qui se penchent, chacune à sa façon, sur ... de cette nouvelle vision, compte tenu de sa structure organi- .... cadre général quinquennal. Tout en ...

Nouvelles: KEK: B pour BELLE; NA48 mesure la violation directe de CP; LEL: le laser à électrons libres dépasse le kilowatt; Le LEP à 100 pour 100; Tour d'honneur au RHIC; Mesures de précision; Etude sur les modes de gestion du village planétaire; Conférence PANIC99 à Uppsala; Rencontre électron-noyau à HERA; LPP, Doubna célèbre une décennie; Les physiciens auscultent le photon; Aimants chauds venus du froid

CERN Multimedia

1999-01-01

Nouvelles: KEK: B pour BELLE; NA48 mesure la violation directe de CP; LEL: le laser à électrons libres dépasse le kilowatt; Le LEP à 100 pour 100; Tour d'honneur au RHIC; Mesures de précision; Etude sur les modes de gestion du village planétaire; Conférence PANIC99 à Uppsala; Rencontre électron-noyau à HERA; LPP, Doubna célèbre une décennie; Les physiciens auscultent le photon; Aimants chauds venus du froid

Uraniferous quartz-pebble conglomerates in South Africa

International Nuclear Information System (INIS)

von Backstroem, J.W.

1981-01-01

The purpose of this paper is to give a short background statement summarizing data on the Dominion Reef Group, the Witwatersrand Supergroup, and the Ventersdorp Contact Reef, with particular reference to the close relationship of gold and uranium with sedimentary features as well as the mineralization, conditions of deposition, and the nature of the quartz-pebble conglomerates

Combustion of uraniferous lignites in fluidized bed

International Nuclear Information System (INIS)

Morales, G.; Gasos, P.

1985-01-01

In this paper a description of the continuous fluid bed combustion pilot plant unit, installed in the Junta de Energia Nuclear facilities, is presented. Besides, this paper deals with some of the studies carried out in the pilot plant aimed at the recovery of uranium from lignites, high in sulfur and ashes, coming from Calaf basin (Barcelona). These studies include the recovery of the heating value of these lignites and the reduction of environmental effect of SO 2 . Based on these studies an application exercise is presented. 9 references, 5 figures, 5 tables

Thermodynamic consideration on chlorination of uraniferous phosphorite

International Nuclear Information System (INIS)

Itagaki, Kimio; Tozawa, Kazuteru; Taki, Tomihiro; Hirono, Shuichiro.

1989-01-01

The uranium ore of low grade which has apatite as a main mineral, but is different from the phosphorite used as the raw material for phosphoric acid production, exists in large amount in South America and Africa continents, and the importance of its effective utilization as future uranium resources is recognized. The Power Reactor and Nuclear Fuel Development Corp. took up the establishment of the treatment techniques to make this ore into resources as the subject of a project, and proposed the process of volatilizing the uranium in the ore as the chloride and recovering it, and at present, it attempts the experiment on the chlorination treatment. In this paper, the thermodynamic examination on the feasibility of this process, the optimum condition for leaving calcium existing in a large amount in the ore as the phosphate without chlorination and recovering only uranium by chlorination and volatilization, the phase reaction equilibrium chart and the calculation method according to thermodynamics concerning the behavior of chlorination of accompanying elements such as iron, silicon and aluminum and the effect of moisture in the ore are reported. (K.I.)

Trastorno del espectro autista y trastorno específico del lenguaje ¿Dos entidades diferentes o un continuo de manifestaciones neuropsicológicas?

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Newra Tellechea Rotta

2013-09-01

Full Text Available El estudio de los niños con retraso en el desarrollo del lenguaje amerita un gran conocimiento del desarrollo neurológico típico; muchas veces, niños con retraso del lenguaje pueden presentar dificultades sociales y conductuales y puede ser difícil, en especial en etapas tempranas, diferenciar entre trastorno del espectro autista (TEA y trastorno específico del lenguaje (TEL. Justamente por ello, teniendo en cuenta que muchas veces comparten síntomas comunes se ha postulado que estos trastornos podrían tener una base etiológica común. En este trabajo analizaré en base a una revisión de la literatura, los aspectos clínicos, los avances en técnicas de diagnóstico y las investigaciones más recientes en las áreas de los TEA y TEL con el objeto de aclarar aspectos que hagan a su diagnóstico más preciso. No obstante, a pesar de los importantes contribuciones en el área de la observación clínica y de estudios complementarios, quedan todavía muchas dificultades para poder identificar tempranamente a estos niños, en especial antes de los dos años de vida, momento en que aún no podemos definir más que si un niño está en riesgo de padecer autismo o si tiene solo un retraso en el desarrollo de su lenguaje con algunas dificultades sociales.

Expressão eficiente do gene reporter beta-glucuronidase nos tecidos vasculares de batata (Solanum tuberosum L. utilizando de um promotor específico (BRA3 de Agrobacterium rhizogenes Efficient expression of beta-glucuronidase reporter gene in vascular tissue of potato (Solanum tuberosum L. utilizing a specific promoter (BRA3 from Agrobacterium rhizogenes

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Antonio Carlos Torres

2003-06-01

Full Text Available Promotores tecido-específico controlam a transcrição de genes em diferentes tecidos vegetais bem como em diferentes estádios de desenvolvimento da planta, levando à indução de distintos níveis de atividade transiente e/ou estável do gene. Tais promotores podem ser empregados para a expressão seletiva de genes de interesse. O promotor rol A de Agrobacterium rhizogenes, por exemplo, é floema-específico, sugerindo que possa ser empregado em estratégias de defesa de plantas que são infectadas por vírus com replicação restrita ao floema. A expressão do gene marcador da ß-glucuronidase (gus dirigido pelo promotor rol A (pBRA3 foi observada em plantas transgênicas de batata (cvs. Macaca e Baronesa. Entrenós e secções de folhas foram submetidos ao cocultivo com A. tumefaciens. A atividade do gene gus avaliada em brotações resistentes à canamicina não se restringiu ao floema (alto nível de expressão do gene, mas também se manifestou no xilema dos caules. As expressões transiente e estável são, no entanto, tecido-específicas, localizadas sobretudo no sistema vascular de entrenós e ausente em raízes e folhas. As plantas gus positivas foram micropropagadas, plantadas em casa de vegetação e avaliadas por PCR, utilizando-se 'primers' específicos para o gene npt II. Nenhuma alteração fenotípica foi observada em plantas transgênicas, em relação às não transformadas.Tissue-especific promoters allow the modulation of gene transcription in different tissue types as well as in different stages of plant development, leading different levels of transient and stable activity of the gene product. These promoters have been employed for selective gene expression. The Agrobacterium rhizogenes rol A gene promoter (BRA3 controls phloem-specific expression indicating that this promoter might have an important role in plant defense strategies against virus which replicated only in the phloem. The expression of �

Prevalência da doença hipertensiva específica da gestação em hospital público de São Paulo Prevalencia de la enfermedad hipertensiva específica de la gestación em hospital publico de São Paulo Prevalence of specific hypertension diseasen in pregnancy in a public hospital of the city of São Paulo

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Roselane Gonçalves

2005-02-01

Full Text Available Pesquisa descritiva-exploratória, realizada de janeiro a julho de 2002, com o objetivo de conhecer a prevalência da Doença Hipertensiva Específica da Gestação (DHEG e suas complicações. Foram analisados retrospectivamente 604 prontuários de mulheres internadas e identificados 22, nos quais o diagnóstico médico foi DHEG, ou seja, 3,64% mulheres tiveram esse diagnóstico. Delas 45,45% eram adolescentes e 40,90% primigestas. Em 86,36% a patologia ocorreu após a 20ª. semana de gestação. Como complicações identificou-se a eclampsia, a crise hipertensiva, o óbito fetal intrauterino, o óbito neonatal, o sofrimento fetal crônico e a prematuridade. Conclui-se que a assistência à saúde perinatal prestada às gestantes da região deve ser revista, sobretudo, a das adolescente com vistas em melhores indicadores de saúde perinatal.Pesquisa descriptiva-exploratoria realizada de enero a julio de 2002, con el objetivo de conocer la prevalencia de la Enfermedad Hipertensiva Específica de la Gestación (EHEG y sus complicaciones. Fueron analizados retrospectivamente 604 prontuarios de mujeres internadas e identificados 22 de los cuales el diagnóstico médico fue la EHEG, o sea, 3.64% mujeres tuvieron este diagnóstico. Entre estas, 45.45% eran adolescentes y 40.90% eran primigestas. En 86.36% la patología ocurrió después de la 20 semana de gestación. Como complicaciones se identificó la eclampsia, la crisis hipertensiva, el óbito fetal intrauterino, el óbito neonatal, el sufrimiento fetal crónico y la prematuridad. Concluyese que la asistencia a la salud prenatal prestada a las mujeres embarazadas de la región debe ser revista, sobretodo las adolescentes, con vistas para obtener mejores indicadores de salud perinatal.This is a descriptive-exploratory study carried out from January to July 2002 with the purpose to know the prevalence of Specific Hypertension Disease in pregnancy (SHD and its disorders. A total of 604 records of

Contribution to the study of french pitchblendes; Contribution a l'etude des pechblendes francaises

Energy Technology Data Exchange (ETDEWEB)

Geffroy, J [Commissariat a l' Energie Atomique, Lab. de Mineralogie, Centre de Chatillon (France). Centre d' Etudes Nucleaires; Sarcia, J A [Commissariat a l' Energie Atomique, Div. de la Crouzille, Haute Vienne (France). Centre d' Etudes Nucleaires

1955-07-01

The authors first review the characteristics of uraninite-pitchblende, as deduced of present literature. They set apart from typical pitchblende a black oxide aspect, which probably corresponds to neo-formations, and a 'para-pitchblende' aspect, which they relate to deep sur-oxidation of normal pitchblende. They insist on the easy replacement of pitchblende by silica. and give indications as to changes in vein stones (fluorite, quartz, etc...). A detailed study of paragenesis and successions in french uranium districts follows (including discussion of uranium of uranium-bearing coals). The authors attempt to classify french pitchblende veins. They are chiefly epithermal and poor in satellite ores. Three types of deposits are identified: massive - pitchblende type, silica type, fluorite type. These deposits, as those of Portugal, are included in granite, Central-European peri-batholitic types where uranium associates which Ni, Co, Bi and Ag, are in France both rare and poor. Finally, the authors attempt to bring out in the european Hercynian area a particular distribution of paragenetic types. (authors) [French] Les auteurs recapitulent d'abord les caracteres et les occurences de l'uraninite - pechblende, tels qu'ils peuvent etre degages de l'actuelle bibliographie. Ils exposent ensuite les faits qui du point de vue mineralogique seulement ressortent de l'etude mineralogique et chalcographique des pechblendes francaises et de leurs satellites. Ils distinguent de la pechblende-type un facies oxyde noir; correspondant probablement a une neoformation, et un facies parapechblende, qui est rapporte a une sur oxydation hypogene de la pechblende proprement dite. Ils insistent sur le facile remaniement de la pechblende par la slice; et donnent quelques precisions sur les modifications des gangues (fluorine, quartz, etc...). Suit l'etude detaillee des parageneses et des successions dans les districts uraniferes francais: Divisions du Limousin, de Grury, de Lachaux et de

Contribution to the study of french pitchblendes; Contribution a l'etude des pechblendes francaises

Energy Technology Data Exchange (ETDEWEB)

Geffroy, J. [Commissariat a l' Energie Atomique, Lab. de Mineralogie, Centre de Chatillon (France). Centre d' Etudes Nucleaires; Sarcia, J.A. [Commissariat a l' Energie Atomique, Div. de la Crouzille, Haute Vienne (France). Centre d' Etudes Nucleaires

1955-07-01

The authors first review the characteristics of uraninite-pitchblende, as deduced of present literature. They set apart from typical pitchblende a black oxide aspect, which probably corresponds to neo-formations, and a 'para-pitchblende' aspect, which they relate to deep sur-oxidation of normal pitchblende. They insist on the easy replacement of pitchblende by silica. and give indications as to changes in vein stones (fluorite, quartz, etc...). A detailed study of paragenesis and successions in french uranium districts follows (including discussion of uranium of uranium-bearing coals). The authors attempt to classify french pitchblende veins. They are chiefly epithermal and poor in satellite ores. Three types of deposits are identified: massive - pitchblende type, silica type, fluorite type. These deposits, as those of Portugal, are included in granite, Central-European peri-batholitic types where uranium associates which Ni, Co, Bi and Ag, are in France both rare and poor. Finally, the authors attempt to bring out in the european Hercynian area a particular distribution of paragenetic types. (authors) [French] Les auteurs recapitulent d'abord les caracteres et les occurences de l'uraninite - pechblende, tels qu'ils peuvent etre degages de l'actuelle bibliographie. Ils exposent ensuite les faits qui du point de vue mineralogique seulement ressortent de l'etude mineralogique et chalcographique des pechblendes francaises et de leurs satellites. Ils distinguent de la pechblende-type un facies oxyde noir; correspondant probablement a une neoformation, et un facies parapechblende, qui est rapporte a une sur oxydation hypogene de la pechblende proprement dite. Ils insistent sur le facile remaniement de la pechblende par la slice; et donnent quelques precisions sur les modifications des gangues (fluorine, quartz, etc...). Suit l'etude detaillee des parageneses et des successions dans les districts uraniferes francais: Divisions du

Neuroimaging in specific phobia disorder: a systematic review of the literature Neuroimagem do transtorno de fobia específica: uma revisão sistemática da literatura

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Ila M.P Linares

2012-03-01

Full Text Available OBJECTIVE: Specific phobia (SP is characterized by irrational fear associated with avoidance of specific stimuli. In recent years, neuroimaging techniques have been used in an attempt to better understand the neurobiology of anxiety disorders. The objective of this study was to perform a systematic review of articles that used neuroimaging techniques to study SP. METHOD:A literature search was conducted through electronic databases, using the keywords: imaging, neuroimaging, PET, spectroscopy, functional magnetic resonance, structural magnetic resonance, SPECT, MRI, DTI, and tractography, combined with simple phobia and specific phobia. One-hundred fifteen articles were found, of which 38 were selected for the present review. From these, 24 used fMRI, 11 used PET, 1 used SPECT, 2 used structural MRI, and none used spectroscopy. RESULT: The search showed that studies in this area were published recently and that the neuroanatomic substrate of SP has not yet been consolidated. CONCLUSION: In spite of methodological differences among studies, results converge to a greater activation in the insula, anterior cingulate cortex, amygdala, and prefrontal and orbitofrontal cortex of patients exposed to phobia-related situations compared to controls. These findings support the hypotheses of the hyperactivation of a neuroanatomic structural network involved in SP.A Fobia Específica (SP do inglês é caracterizada por medos irracionais associados à evitação de estímulos específicos. Nos últimos anos, técnicas de neuroimagem vêm sendo empregadas na tentativa de melhor compreender a neurobiologia dos transtornos de ansiedade. O objetivo do presente estudo é realizar uma revisão sistemática dos artigos que utilizaram neuroimagem para estudar a SP. A busca na literatura foi realizada por intermédio de indexadores eletrônicos, utilizando-se as palavras-chave: imaging, neuroimaging, PET, spectroscopy, functional magnetic ressonance, structural

Université de Genève - Planètes extra-solaires: des propriétés inattendues des planètes géantes à la chasse à une nouvelle Terre - French version only

CERN Multimedia

2006-01-01

Université de Genève Ecole de physique 24 quai Ernest Ansermet1211 Genève 4Tél : +41 22 379 6383 (secrétariat)Tél : +41 22 379 6256 (réception) Fax: +41 22 379 6922 Lundi 30 octobre 2006 COLLOQUE 17h00 - Auditoire Stueckelberg Planètes extra-solaires: des propriétés inattendues des planètes géantes à la chasse à une nouvelle Terre Dr S. Udry / Observatoire de Genève, Sauverny Depuis la détection de la première 'exoplanète' en orbite autour d'une étoile semblable à notre soleil, il y a un peu plus de 10 ans, près de 200 candidats planétaires ont été mis à jour, la plupart par spectroscopie Doppler. Les propriétés variées et inattendues de ces systèmes seront discutées ainsi que les contraintes qu'elles fournissent pour les modèles de formation planétaire. Si les planètes découvertes sont pour la plupart des géantes gazeuses ressemblant à Jupiter, un nouveau pas a été récemment franchi avec la détection de planètes plus légères (10-20 masses terrestres) et probabl...

Pneumonite intersticial não específica: entidade clínico-patológica, padrão histológico ou apenas grupo heterogéneo de pneumonites intersticiais não classificadas?

Directory of Open Access Journals (Sweden)

António Morais

2004-07-01

Full Text Available RESUMO: A pneumonite intersticial não específica (NSIP, descrita pela primeira vez em 1994 por Katzenstein e Fiorelli, apresenta-se como uma eventual entidade clínico-patológica individualizável dentro do grupo das pneumonites intersticiais idiopáticas (IIP. Aliada a alterações histológicas distintas, apresentauma evolução clínica mais favorável, com consequente melhor prognóstico do que a fibrose pulmonar idiopática (IPF, grupo onde geralmente estas alterações eram incluídas. Estas diferenças levam a que, apesar das dúvidas que ainda envolvem a NSIP, o seu reconhecimento seja importante, uma vez que as atitudes clínicas e terapêuticas se diferenciam da IPF. A NSIP engloba padrões histológicos diferentes, dividindo-se nomeadamente em casos de predomínio inflamatório (tipo celular ou de predomínio fibroso (tipo fibrosante, com os últimos a evidenciarem uma maior gravidade e pior prognóstico do que os primeiros. Os autores descrevem dois casos de NSIP, seguidos de uma revisão e discussão do tema.REV PORT PNEUMOL 2004; X (4: 331-345 ABSTRACT: Nonspecific interstitial pneumonitis (NSIP initially described by Katzenstein and Fiorelli in 1994, seems to be a distinct clinicopathologic entity among idiopathic interstitial pneumonitis (IIP. Besides different histologic features from other IIP, NSIP is characterized by a better long-term outcome, associated with a better steroids responsiveness than idiopathic pulmonar fibrosis (IPF, where usually were included. Thus, differentiating NSIP from other IIP, namely IPF is very significant, since it has important therapeutic and prognostic implications. NSIP encloses different pathologies, namely those with inflammatory predominance (cellular subtype or fibrous predominance (fibrosing subtype. NSIP is reviewed and discussed by the authors, after two clinical cases description.REV PORT PNEUMOL 2004; X (4: 331-345 Palavras chave: pneumonites intersticiais idiopáticas, pneumonite

Produtividade de madeira do eucalipto correlacionada com atributos do solo visando ao mapeamento de zonas específicas de manejo Eucalyptus wood productivity correlated with soil attributes aiming the mapping of management specifics regions

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Morel de Passos e Carvalho

2012-10-01

Full Text Available A correta intervenção espacial na administração da lavoura, decorrente das zonas específicas de manejo do solo, aumenta a produtividade e a lucratividade agrícola. No ano de 2010, em Selvíria, Mato Grosso do Sul, Brasil (20° 20' S lat.; 51° 24' W long. foram empregadas correlações, espaciais e de Pearson, entre dados da planta de eucalipto e alguns atributos físico-químicos do solo, visando encontrar aquele que se correlacionasse bem com a produtividade de madeira. Para tanto, instalou-se uma rede geoestatística para a coleta de dados de solo e planta, com 120 pontos amostrais, num talhão de Eucalyptus camaldulensis de 2 anos. O solo foi um Latossolo Vermelho distrófico (Haplic Acrustox com declive de 0,025m m-1. O diâmetro basal da copa e a densidade do solo, por resultarem estreitas correlações com o volume de madeira, evidenciaram zonas específicas de manejo do solo intimamente associadas à produção de madeira do eucalipto.The perfect spatial intervention to manage the cultivation of the land, deriving from specific regions of the soil mapping, increases the agricultural productivity, as well as its clear gain. The relationships, spatial and Pearson, between eucalyptus data plant with some physical and chemical attributes of soil, in the growing season of 2011, in Selviria County, Mato Grosso do Sul State, Brazil (20° 20' S lat.; 51° 24' W long., were studied in order to obtain the one that could have the best relationship in order to improve the wood productivity. Thus, a geostatistical grid was installed for the soil and plant data collection, it contained 120 sample points, in plantation of Eucalyptus camaldulensis of 2 years old. The soil was a Dystrophic Red Latosol (Haplic Acrustox whit slope of 0.025m m-1. Due to their excellent relationship with wood productivity, the basis diameter of the crown and the bulk density showed management specific regions of soil whit high relation to eucalyptus wood productivity.

La competencia informacional en la enseñanza obligatoria a partir de la articulación de un modelo específico

Directory of Open Access Journals (Sweden)

Blasco Olivares, Anna

2012-07-01

Full Text Available A three-phased model is proposed for addressing information competence in the context of compulsory education. The 3 basic phases are information searching, management and communication. A study of the current standard curriculum identified the objectives and content corresponding to the three phases, with the aim of assisting centres in establishing programs for each educational stage. The goal is to help improve the design of research projects that are carried out in the classroom as well as to develop information literacy using the school library. The text points to areas in which the school library can play an important role in supporting the curriculum for skills development.

Se propone una articulación curricular de la competencia informacional (o ALFIN en el contexto escolar de la Enseñanza Obligatoria a partir de un modelo específico centrado en las tres fases básicas que constituyen la esencia de esta competencia: la búsqueda, el tratamiento y la comunicación de la información. Se ha analizado en profundidad el currículum normativo actual y se han identificado objetivos y contenidos correspondientes a cada fase con el objetivo de facilitar a los centros la concreción de programaciones para cada etapa educativa. Se pretende con ello ayudar a mejorar el diseño de los proyectos de investigación que se realizan en las aulas, así como desarrollar de forma sistémica la competencia informacional en el centro educativo con la contribución de la biblioteca escolar. Se señalan aquellos aspectos principales en los que la biblioteca escolar puede aportar una función de apoyo curricular de gran importancia al desarrollo de las habilidades.

Interfon

CERN Multimedia

Interfon

2012-01-01

Une nouvelle année commence … En ce début de nouvelle année Interfon s’engage à continuer sa mission de service  afin de vous faire profiter des avantages que nos partenaires consentent tout spécialement à nos adhérents. L’année qui s’est achevée aura été une année  difficile sur le plan financier. La concurrence est rude, nos sociétaires ne nous sont pas toujours fidèles, mais nous restons à leur écoute et sommes toujours à la recherche de nouveaux services. Ne voulant pas nous laisser envahir par la morosité environnante, nous sommes déjà dans des perspectives nouvelles et notamment, très bientôt, par la mise en place d’un nouveau Site internet plus attractif, facilité par une arboresc...

Valor del tacto rectal y el antígeno prostático específico en el pesquisaje del adenocarcinoma de próstata

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Odalys Sandoval Jiménez

2002-12-01

Full Text Available Se realizó un estudio para valorar la utilidad del pesquisaje en el diagnóstico del adenocarcinoma de próstata, en 5 consultorios del médico de la familia, en el municipio Plaza de la Revolución, en el período de 1998 al 2000. El universo del estudio estuvo constituido por 97 varones, todos mayores de 50 años y supuestamente sanos. A todos los pacientes se les realizó una dosificación de antígeno prostático específico (PSA total y luego tacto rectal. En los casos cuando apareció alguna alteración o signo de sospecha de posible desarrollo de células malignas, se les practicó un mapeo citológico de la glándula prostática a través de la biopsia con aguja fina. Se constató en el estudio que el tacto rectal es un examen que mantiene utilidad para el diagnóstico del adenocarcinoma de próstata, y presentó en la investigación una positividad del 15 %. El PSA total se mostró alterado en 6 casos, y fue positivo de células malignas en los 3 pacientes cuando su valor era superior a 10 ng/mL. Aunque la muestra no fue selectiva, es de señalar la alta incidencia de adenocarcinoma de próstata (4,1 % que aparece en esta investigación

Impianti nucleari

CERN Document Server

Cumo, Maurizio

1976-01-01

L'energia nucleare nel panorama energetico ; risorse uranifere e impianti di lavorazione del combustibile ; ciclo del combustibilie ; schemi di impianto delle principali filiere di reattori ; reattori di potenza e di ricerca, applicazioni dell'energia nucleare ; elementi di progettazione nucleare, termoidraulica e tecnologica ; i combustibili nucleari ; componenti caratteristici dei reattori e disposizioni di impianto ; controllo e strumentazione nucleare ; problemi di sicurezza nei reattori.

Uranium prospecting through radon detection; La prospection de l'uranium par le radon

Energy Technology Data Exchange (ETDEWEB)

Pradel, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1956-07-01

Prospecting rests on the determination of the concentration of ground air in radon. Radon diffusing from deep uranium bearing layers is detected in upper ground layers. (author) [French] La prospection est basee sur l'etude de la concentration en radon dans l'air du sol. Dans les terrains superficiels, on decele le radon qui diffuse a partir des couches profondes uraniferes. (auteur)

Second Supplement to A Catalog of the Mosquitoes of the World (Diptera: Culicidae)

Science.gov (United States)

1984-01-01

104. Brunhes, J. 1977a. Les moustiques de l’archipel des Comores I. - Inventaire, &partition et description de quatre esptces ou sous-espscies...nouvelles. Cah. O.R.S.T.O.M. Ser. Entomol. Med. Parasitol. 15:131-152. Brunhes, J. 1977b. Les moustiques de l’archipel des Comores 11. - Description de...Dieng. 1978. Aedes (Stegomyia) neoafricanus un nouvelle espzcie de moustique capture’e au Sgne’gal Oriental (Diptera: Culicidae), Cah. O.R.S.T.O.M

La RSE : nouvelle forme de dé-marchandisation du monde ? CSR: a new way of de-marchanisation of the world?

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Richard Sobel

2010-12-01

Full Text Available Le mouvement dit de « RSE » entend concilier l’actuel mode d’accumulation à dominante financière avec certaines exigences sociales et environnementales. Or, ce mouvement s’inscrit assez bien dans l’analyse historique et institutionnaliste que Karl Polanyi a faite des limites de la marchandisation du monde. En effet, ce mouvement consiste à revenir sur la trop forte marchandisation du rapport à la nature et au travail qu’aurait entraîné le développement d’un capitalisme financiarisé. En réaction, ce mouvement mobilise l’engagement volontaire des entreprises pour bâtir une nouvelle « grande transformation », c’est-à-dire une forme inédite d’articulation entre le juste et l’efficace visant à assurer la viabilité du capitalisme. Cela revient à élargir l’engagement économique à autre chose que la simple maximisation des intérêts individuels de court terme. Cet article vise à exploiter cette proximité entre le mouvement de la RSE et l’analyse polanyienne de la marchandisation, proximité selon nous fructueuse et qui n’a jamais fait l’objet d’une analyse systématique. L’enjeu est de déterminer dans quelle mesure la RSE constitue aujourd’hui une réponse pertinente à la nécessaire gestion collective de la fiction que constitue la marchandisation apparente de la monnaie, de la terre et du travail.The movement says about "CSR" tries to reconcile the current financial mode of accumulation with certain social and environmental requirements. This movement joins well enough in the historic and institutionnalist analysis which Karl Polanyi made of the limits of marchandisation of the world. Indeed, this movement consists in returning on excess strong marchandisation of the relationship with the nature and with the work which would have pulled the new capitalism. In reaction, this movement mobilizes the individual commitment to build a new "great transformation", that is new articulation

Formation of neogenic ores on the dump-heaps of old uranium mines and on the mine-head of mines under exploitation; Formation de mineraux neogenes sur les haldes d'anciennes mines d'uranium et sur le carreau des mines en exploitation

Energy Technology Data Exchange (ETDEWEB)

Chervet, J [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1960-07-01

The aim of this preliminary study is to assess straight away the major degradations suffered by primary and secondary uranium ores under the weathering action of air and water. The uranium ores concerned in this case are those stored in the open air. The pyritic ores are the most vulnerable: the interactions between the pyrite, or rather its oxidation products, and the uraniferous compounds are liable to lead to the formation of neogenic ores, which are of considerable importance in the natural lixiviation of uranium ore stocks. (author) [French] Cette etude preliminaire a pour but de fixer des a present les degradations majeures que subissent les mineraux d'uranium primaires et secondaires, sous l'action de l'air et des eaux meteoriques. Il s'agit en l'occurence des mineraux d'uranium constituant les minerais entreposes a l'air libre. Les minerais pyriteux sont les plus vulnerables: les interactions entre la pyrite ou plutot de ses produits d'oxydation avec les composes uraniferes sont susceptibles de former des mineraux neogenes dont l'importance est considerable dans la lixiviation naturelle des stocks de minerais d'uranium. (auteur)

Influence of Uranium on Bacterial Communities: A Comparison of Natural Uranium-Rich Soils with Controls

Science.gov (United States)

Mondani, Laure; Benzerara, Karim; Carrière, Marie; Christen, Richard; Mamindy-Pajany, Yannick; Février, Laureline; Marmier, Nicolas; Achouak, Wafa; Nardoux, Pascal; Berthomieu, Catherine; Chapon, Virginie

2011-01-01

This study investigated the influence of uranium on the indigenous bacterial community structure in natural soils with high uranium content. Radioactive soil samples exhibiting 0.26% - 25.5% U in mass were analyzed and compared with nearby control soils containing trace uranium. EXAFS and XRD analyses of soils revealed the presence of U(VI) and uranium-phosphate mineral phases, identified as sabugalite and meta-autunite. A comparative analysis of bacterial community fingerprints using denaturing gradient gel electrophoresis (DGGE) revealed the presence of a complex population in both control and uranium-rich samples. However, bacterial communities inhabiting uraniferous soils exhibited specific fingerprints that were remarkably stable over time, in contrast to populations from nearby control samples. Representatives of Acidobacteria, Proteobacteria, and seven others phyla were detected in DGGE bands specific to uraniferous samples. In particular, sequences related to iron-reducing bacteria such as Geobacter and Geothrix were identified concomitantly with iron-oxidizing species such as Gallionella and Sideroxydans. All together, our results demonstrate that uranium exerts a permanent high pressure on soil bacterial communities and suggest the existence of a uranium redox cycle mediated by bacteria in the soil. PMID:21998695

Methodes de calcul des forces aerodynamiques pour les etudes des interactions aeroservoelastiques

Science.gov (United States)

Biskri, Djallel Eddine

L'aeroservoelasticite est un domaine ou interagissent la structure flexible d'un avion, l'aerodynamique et la commande de vol. De son cote, la commande du vol considere l'avion comme une structure rigide et etudie l'influence du systeme de commande sur la dynamique de vol. Dans cette these, nous avons code trois nouvelles methodes d'approximation de forces aerodynamiques: Moindres carres corriges, Etat minimal corrige et Etats combines. Dans les deux premieres methodes, les erreurs d'approximation entre les forces aerodynamiques approximees par les methodes classiques et celles obtenues par les nouvelles methodes ont les memes formes analytiques que celles des forces aerodynamiques calculees par LS ou MS. Quant a la troisieme methode, celle-ci combine les formulations des forces approximees avec les methodes standards LS et MS. Les vitesses et frequences de battement et les temps d'executions calcules par les nouvelles methodes versus ceux calcules par les methodes classiques ont ete analyses.

Diseño de la estrategia de Inglés con propósitos específicos en un contexto extracurricular para el aprendizaje del Inglés técnico médico en estudiantes de medicina de la Universidad Regional Autónoma de los Andes

OpenAIRE

Montes De Oca Sánchez, Irma Verónica

2017-01-01

1. Introducción. 2. Planteamiento de la propuesta de trabajo 3. Marco Teórico 4. Metodología 5. Resultados 6. Conclusiones y Recomendaciones. En el proceso de formación profesional del médico que realiza sus estudios en la Universidad Regional Autónoma de los Andes, se incluye la preparación en el dominio de competencias en inglés; misma que comprende el aprendizaje del inglés con propósitos generales (EGP) y no abarca el aprendizaje de aspectos específicos relacionados ...

POUR UN ÉCLAIRAGE STYLISTIQUE DE L’ŒUVRE DE FREUD : de l’opération médicale à la métaphore opérante dans la nouvelle édition intégrale des Lettres à Wilhelm Fliess

Directory of Open Access Journals (Sweden)

Laurence Aubry

2010-07-01

Full Text Available Cet article propose de reconsidérer les liens entre la psychanalyse, la littérature et les sciences du langage à partir d’une approche des textes analytiques centrée sur le détail de l’expression. Nous partons ici de la question de la métaphore, croisant celle de la tra-duction et de l’histoire des œuvres de Freud pour examiner un événement de lecture : la redécouverte des lettres à Flieβ dans la nouvelle traduction intégrale en français. Nous montrerons comment un complexe figural irradie à partir de la métaphore de l’opération, considérée comme une figure vive dans les énoncés concernant Emma Eckstein. Ainsi le style anticipe sur la découverte à venir de la cure, de l’Œdipe et du transfert. Comme l’écrivain absolument moderne, l’écriture est en avant de la science qu’elle prévoit et an-nonce. Aussi la question du style renoue-t-elle un dialogue où psychanalyse et littérature trouvent à s’enrichir mutuellement dans le respect de leur altérité.

El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI

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Rina Márceles de Sanz

2015-10-01

Full Text Available El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI se fundamentan en un proceso analítico, reflexivo y etnográfico, que determina en primera instancia algunos criterios importantes acerca del concepto de universidad para ver hacia dónde se proyecta. Este artículo analiza las concepciones de la práctica pedagógica bajo la luz de destacados autores como Olga Lucía Zuluaga, quien viene investigando el tema desde hace varias décadas y Basil Bernstein quien la estudia desde las relaciones sociales y de poder. Por último se hace una propuesta metodológica que se basa en la solución de problemas y la enseñanza problémica para lograr los cambios significativos que amerita la educación superior del siglo XXI.AbstractThe specific knowledge and the pedagogic practice in the higher/collage educational context of the XXI century is based on an analytical, reflexive and ethnographic process, that determines in first place some important criteria about the university concept to foresee where it is projected. This article focuses of teaching practices in light of authors such as Olga Lucia Zuluaga, who has been investigating the issue for several decades and Basil Berstein who has been studying the social and power relations. Finally a methodological proposal is being considered based on problem solutions and the teaching to achieve meaningful changes that Higher Education for the XXI century deserves. 

The effect of fine presence in flotation of phosphate from Itataia-Brazil

International Nuclear Information System (INIS)

Dantas, J.O.C.; Adamian, R.

1987-01-01

Some important aspects in the flotation of phosphorus-uraniferous ore from Itataia, Brazil, are presented. The effect of particle size and problems caused by the presence of calcite in the gangue which engages the selectivity of the process are studied. The mineral characterization, grinding tests and flotation tests were done. The Kinetic parameters: maximum extrapolated recovery and kinetic constant were calculated. (M.C.K.) [pt

Comportements spatio-temporels des touristes dans la région de Québec

OpenAIRE

Kercuku, Hava

2009-01-01

La pratique du tourisme urbain est un facteur important pour le développement économique et spatial de nombreuses villes et régions dans le monde. Cependant de nouvelles destinations et de nouvelles pratiques émergent constamment. D’une part, l’offre touristique urbaine se modifie et se diversifie constamment, et d’autre part, les pratiques touristiques se renouvellent, s’entrecroisent et se ressemblent en cherchant toujours plus, plus vite et plus personnalisé. La région touristique de Québe...

Conclusion du titre II

OpenAIRE

Nguyen, Minh Hang

2013-01-01

La qualification de la conciliation et de la médiation judiciaires en contrats de pourparlers judiciaires emporte d’importantes conséquences. 216. Consécration d’une nouvelle famille de contrats : les contrats de pourparlers judiciaires - Elle consacre tout d’abord une nouvelle famille de contrats : les contrats de pourparlers judiciaires. Ce faisant, elle apporte une pierre supplémentaire à l’édifice des figures hybrides qui mêlent le conventionnel et le judiciaire. 217. Les contrats de pour...

Study of the age of uranium-containing mineral deposits in the Limouzat, the bois-noir mountains (12963); Etude des ages des mineralisations uraniferes du gisement du Limouzat, Massif des bois-noirs (1963)

Energy Technology Data Exchange (ETDEWEB)

Durand, G [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1963-07-01

, alors que tous les chercheurs ont considere que les teneurs en plomb des mineraux uraniferes etaient negligeables et n'avaient aucune importance dans l'etude du spectre {gamma} des echantillons. Il est bien evident qu'une etude interessante doit etre entreprise sur les effets d'ecran des differents cations se trouvant au sein des mineraux. Nous pensons qu'on peut meme aboutir a la mise en evidence de certains elements directement par la spectrometrie {gamma}. Les ages mesures au spectrometre de masse presentent deux types de discordance mais ceux-ci ont pu etre expliques en considerant une premiere venue de plomb suivie d'un rearrangement et dans certains points d'une deuxieme venue a cette date. Enfin le gisement etudie subit une circulation d'uranium et de radon. (auteur)

Uranium hydrogeochemical and stream sediment reconnaissance of the Raton NTMS quadrangle, New Mexico

International Nuclear Information System (INIS)

Morgan, T.L.; Broxton, D.E.

1978-10-01

A total of 824 water and 1340 sediment samples were collected from 1844 sample locations in the Raton NTMS quadrangle and analyzed for uranium. Samples were collected at a nominal density of one per 10 km 2 . Notably high uranium values were found in both water and sediment samples collected from tributaries of Costilla Creek in the Culebra Range. Uranium contents in stream waters from this area range from individual high values of 145.1 and 76.1 to values slightly higher than the background concentrations in adjacent areas. Stream sediments range from 4.1 to 202.2 ppM uranium and average 30 ppM. The Culebra Range is a favorable setting for hard-rock type uranium mineralization. The uraniferous water and sediment samples call attention to this area as a possible exploration target. Numerous groups of ground waters with high uranium concentrations come from locations along the Cimarron and Sierra Grande Arches in the eastern part of the quadrangle. The Cimarron Arch is the locus of the largest group of uraniferous ground waters, with concentrations ranging between 5.2 and 103.3 ppB. Aquifers from which these samples were derived include the Fort Hays and Smoky Hill members of the Niobrara formation, the Pierre shale, and Quaternary surficial deposits. Most of the uraniferous ground waters along the Sierra Grande Arch occur in small, isolated groups that probably represent minor, local sources of uranium. Carbonate complexing of uranium may contribute to the high uranium values seen in these samples. Stream sediment samples with high uranium concentrations (10.1 to 51.4 ppM) were found in several drainages from the western front of the Taos Range. One group of locations providing high-uranium sediments is near known uranium occurrence in the vicinity of Cabresto and Latir Peaks. The western Taos Range is a favorable setting for hard rock uranium mineralization and may also warrant further study

Contribution to the study of recoil species produced by potassium ferrocyanide neutron irradiation; Contribution a l'etude de la reactivite des especes de recul dans le ferrocyanure de potassium irradie aux neutrons thermiques

Energy Technology Data Exchange (ETDEWEB)

Meriadec Vernier de Byans, B. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1969-04-01

The chemical species produced by potassium ferrocyanide neutron irradiation were separated and identified. The study of their behaviour upon thermal annealing has allowed to establish a scheme of reaction as well as a kinetic treatment of the data. Activation energies are determined in different conditions and the effects of radiation dose, oxygen and water of crystallisation upon the activation energies were studied. Preliminary E.S.R. data and its relevance to the decomposition process is also discussed. (authors) [French] On a separe et identifie les differentes especes chimiques produites par irradiation neutronique de ferrocyanure de potassium. L'etude de leur comportement au cours du recuit thermique a permis l'application de differentes cinetiques et l'etablissement d'un schema de reaction. On a deterrmine la valeur des energies d'activation dans differentes conditions de recuit ainsi que l'influence de la dose de radiations, de l'oxygene et de l'eau de cristallisation sur ces energies. Une serie de mesures de resonance paramagnetique electronique a complete cette etude. (auteurs)

Formación en Género en la Universidad: ¿Materia de asignaturas específicas o de educación transversal?

Directory of Open Access Journals (Sweden)

Rosario Asián Chaves

2015-01-01

Full Text Available En este artículo se debaten los diferentes resultados de recibir una formación mediante asignaturas específicas o de forma transversal. La persistencia de estereotipos de género y la división sexual del trabajo están relacionadas con la falta de concienciación social, debida, entre otros factores, a la falta de formación en cuestiones de género. Esta formación es necesaria para reflexionar y "reconstruir" los mensajes sobre género para develar las premisas ideológicas y las jerarquías subyacentes en los mensajes. El objetivo principal es constatar la importancia de recibir formación en género en la Universidad. Para ello se propone comparar los resultados de las encuestas dirigidas al alumnado de las licenciaturas en Ciencias del Trabajo y en Administración y Dirección de Empresas y observar si existen diferencias entre ambos grupos, tanto en relación con su formación sobre la materia, como con su comportamiento y actitud frente a determinadas cuestiones relacionadas con el género. Además, se trataría de ver, si existe diferencia, en qué medida puede derivarse de la formación recibida. Se han pasado encuestas a una muestra representativa de alumnas/os de ambas titulaciones y se han aplicado las oportunas técnicas estadísticas a través del software SPSS. Los resultados del trabajo refuerzan la idea inicial de la necesidad de incorporar asignaturas que den formación en género en programas y titulaciones universitarias y plantear no sólo conocimientos disciplinares orientados al "saber" y profesionales orientados al "saber hacer", sino también actitudes para un compromiso ético orientadas a la equidad de género.

Composição específica e abundância da ictiofauna do rio dos Padres, bacia do rio Iguaçu, Brasil = Specific composition and abundance of the ichthyofauna from Padres’ river, Iguaçu river basin, Brazil

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Alessandro Gasparetto Bifi

2006-07-01

Full Text Available A composição e estrutura das comunidades de peixes podem ser consideradas como indicadores ecológicos e ambientais, constituindo-se desta forma como ferramenta para o manejo de bacias hidrográficas. O presente estudo objetivou levantar informaçõessobre a composição específica e abundância da ictiofauna do rio dos Padres. Foram realizadas amostragens trimestrais pelo método da pesca elétrica em dois pontos de coleta, um próximo à nascente e outro nas proximidades da foz. As coletas resultaram na captura de 7.026 exemplares pertencentes a 12 espécies distribuídas em sete famílias. A nascente apresentou uma alta densidade em número de indivíduos e menores valores de diversidade, eqüitabilidade e riqueza de espécies em relação à foz. O levantamento da composição específica e abundância da ictiofauna de um rio é de grande importância, por fornecer subsídio a futuros manejos e monitoramentos, tanto da comunidade aquática quanto do ambiente.The composition and structure of fish community can be considered ecological and environmental indicators. The present study aimed to survey information about the specific composition and abundance of theichthyofauna from Padres’ River. Quarterly samplings were accomplished by the method of the electrofishing in two sample sites, one close to the headwater and another in the proximities of the mouth. The collections resulted in the capture of 7026 specimens belonging to 12 species, which, in turn, fit in seven different families. The headwater presented a high density in number of individuals and smaller values of diversity, evenness and richness of species in relation to the mouth. The raising of the specific composition and abundance of the ichthyofauna of a river is of great importance for supplying subsidy to future managements and accompaniment, as much of the aquatic community as of the environment.

Bilan et évolution de la mise en œuvre de géosynthétiques bentonitiques (GSB dans les ouvrages souterrains

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MAHUET, Jean-louis

2012-08-01

Full Text Available En France, les premières applications de procédés d’étanchéité à base de bentonite dans les ouvrages souterrains remontent à trente ans. L'évolution des procédés et l'arrivée de nouvelles normes ont conduit à établir de nouvelles spécifications de caractérisation et de presciption de mise en œuvre des géosynthétiques bentonitiques : cet article nous en présente les principales.

Drugi pored mene. Antologija priča i eseja pisaca Jugoistočne Evrope (anthologie éditée par Ričard Švarc

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Pieter Troch

2009-02-01

Full Text Available L’anthologie Drugi pored mene… (L’Autre à côté de moi. Anthologie de nouvelles et d’essais d’écrivains de l’Europe du sud-est comprend vingt et une nouvelles et essais écrits par des auteurs contemporains serbes (David Albahari, Vladimir Arsenijević, László Végel, Charles Simic, Biljana Srbljanović, Dragan Velikić, kosovars (Beqë Cufaj, croates (Slavenka Drakulić, Bora Ćosić, Miljenko Jergović, Irena Vrkljan, bulgares (Dimitré Dinev, Vladimir Zarev, bosniaques (Aleksandar Hemon, Saša Sta...

Analyse de Langues et cultures - Les TIC, enseignement et apprentissage

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Élisabeth Brodin

2006-04-01

Full Text Available 1. Introduction Cet ouvrage constitue les actes du colloque des IUFM (Institut Universitaire de Formation des Maîtres de décembre 2003, intitulé "Quelles nouvelles perspectives pour l'enseignement / apprentissage des langues et cultures ?" On peut déplorer a priori que le titre du livre, au demeurant ambitieux, et le sous-titre ne reprennent pas la question des nouvelles perspectives apportées par les Technologies de l'Information et de la Communication (TIC à l'enseignement des langues e...

Eleonora Pasotti, Political branding in cities. The decline of machine politics in Bogotá, Naples, and Chicago

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Gilles Pinson

2011-11-01

Full Text Available Au travers de cet ouvrage, Eleonora Pasotti, professeure de science politique à l’Université de Californie à Santa Cruz, renoue avec la grande tradition nord-américaine des travaux de science politique qui aborde la grande ville comme lieu d’invention et de repérage des nouvelles formes d’échange politique et de lien entre gouvernants et gouvernés. Le livre articule une analyse des nouveaux comportements électoraux et des nouvelles logiques de mobilisation électorale, d’une part, et une analy...

Café des Sciences - French version only

CERN Document Server

Café des Sciences

2006-01-01

Une langue sur le bout de la langue. L'apprentissage d'une langue ne s'arrête pas à des pages de vocabulaire, des règles de grammaire et des exercices de prononciation. Une langue, c'est une porte ouverte sur une nouvelle culture, une nouvelle façon de penser le monde, le rapport à l'autre, c'est élargir son environnement social, affectif, culturel. Actuellement, les nombreuses langues qui se côtoient dans notre société, nous font entrer dans une réalité multiculturelle, multilinguistique.

PCR with Paracoccidioides brasiliensis specific primers: potential use in ecological studies PCR com «primers» específicos de Paracoccidioides brasiliensis: uso potencial em estudos ecológicos

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S. DÍEZ

1999-11-01

Full Text Available The precise microenvironment of Paracoccidioides brasiliensis has not yet been discovered perhaps because the methods used are not sensitive enough. We applied to this purpose the polymerase chain reaction (PCR using three sets of specific primers corresponding to two P. brasiliensis genes. This fungus as well as several other fungi, were grown and their DNA obtained by mechanical disruption and a phenol chloroform isoamylalcohol-based purification method. The DNA served for a PCR reaction that employed specific primers from two P. brasiliensis genes that codify for antigenic proteins, namely, the 27 kDa and the 43 kDa. The lowest detection range for the 27 kDa gene was 3 pg. The amplification for both genes was positive only with DNA from P. brasiliensis; additionally, the mRNA for the 27 kDa gene was present only in P. brasiliensis, as indicated by the Northern analysis. The standardization of PCR technology permitted the amplification of P. brasiliensis DNA in artificially contaminated soils and in tissues of armadillos naturally infected with the fungus. These results indicate that PCR technology could play an important role in the search for P. brasiliensis’ habitat and could also be used in other ecological studies.O microambiente adequado do Paracoccidioides brasiliensis não foi ainda bem esclarecido, talvez porque os métodos utilizados não sejam suficientemente sensíveis. Aplicamos com este propósito, a reação em cadeia da polimerase (PCR usando três jogos de primers específicos do P. brasiliensis, correspondendo a dois dos genes do P. brasiliensis. Este fungo, assim como outros fungos, foram cultivados e seus DNAs obtidos por ruptura mecânica e purificados com mistura de fenol-clorofórmio com álcool isoamílico. Os DNAs serviram para a reação de PCR utilizando-se primers específicos para dois dos genes do P. brasiliensis que codificam para as proteínas antigênicas, denominadas, 27 kDa e 43 kDa. O limite mínimo de

Static leaching of uraniferous shales on open areas

International Nuclear Information System (INIS)

Hernandez Nieto, J.; Cordero, G.; Villarrubia, M.

1973-01-01

This report describes the tests on acid heap leaching with conventional (1.400 ppm U 3 O 8 ) crushed uranium ores. We use open circuits with low internal recycled. Using starving acidity in the leaching solutions we obtain a smooth solubilization of uranium and, at the same time, the pregnant liquors are good for the solvent extraction recovery. (Author)

Static leaching of uraniferous shales with countercurrent circuits

International Nuclear Information System (INIS)

Cordero, G.; Villarrubia, M.; Hernandez, J.

1973-01-01

We test different amounts of acid and the way of adding it in order to obtain the solubilization of uranium in static leaching. We also test the effects of the temperature. Finally we show the tests of solvent extraction considering the most important variables in it . In leaching we must work with 32 kg/t of acid and 40 d in order to obtain uraniums solubilization over 80%, The pregnant liquors have a high concentration of silica and we must use low organic liquid ( ≤ 3,5 % in amine) and fit the acidity of the pregnant Solutions to 4-8 g H 2 SO 4 /I. We show the economy of the process. (Author)

On the genesis of the uraniferous deposits I

International Nuclear Information System (INIS)

Mingarro, E.

1964-01-01

The main problems of the genesis of uranium deposits as hydro thermals are objectively considered here under three aspects: uranium source transport and deposition. The transport of uranium can be effected under a tetravalent form, or as complex ions of hexavalent uranium: as uranyl ion (UO 2 ) 2 + or under complex carbonic or sulfuric forms, such as UO 2 (XO n ) 2 2 - or UO 2 (XO n ) 3 4 -. These three ways of transport correspond to the three basic geochemical para genesis of uranium: uranium-titanium, uranium-cobalt, uranium. Deposition is currently made by reduction and in some way is no dependent of mineralogical association. (Author) 61 refs

Les Diaboliques de Barbey d’Aurevilly : Un éloge de la provocation. Regard sur la nouvelle Le bonheur dans le crime (Les Diaboliques, de Barbey d’Aurevilly: elogio de la provocación. Sobre la novela corta La dicha en el crimen

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Verónica Murillo Chinchilla

2015-09-01

Full Text Available Cet article analyse la nouvelle Le bonheur dans le crime de l’écrivain français, Barbey d’Aurevilly dans le but de mettre en exergue les trois axes sur lesquels se déplie l’idée esthétique de l’auteur : l’image de la femme, la notion d’amour et l’idéalisation de la transgression. L’intention moraliste à la base du recueil Les Diaboliques (auquel appartient Le Bonheur dans le crime, se transforme en une sorte d’éloge de la beauté du Mal. El presente artículo analiza la novela corta Le bonheur dans le crime (La dicha en el crimen del francés Barbey d’Aurevilly, con el objetivo de destacar los tres ejes en torno a los cuales se despliega la idea estética del autor: la imagen de la mujer, la noción de amor y la idealización de la transgresión. La intención moralista que dio origen a la recopilación de Les Diaboliques (al cual pertenece Le Bonheur dans le crime, se transforma de cierta manera en un elogio a la belleza del Mal.

Littérature arabe en Israël : vers une sensibilité nouvelle Arabic Literature in Israel: Towards a New Sensibility ספרות ערבית בישראל

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Sobhi Boustani

2011-10-01

Full Text Available La cause palestinienne chez les poètes arabes israéliens. Le présent article s’évertue à montrer les mouvements marquant l'évolution de la poésie arabe en Israël, dans un contexte contradictoire. Il souligne trois tendances principales. La première, explicitement militante, développée dans le giron de la Rakah, parti communiste israélien. Destinée à un public particulier et animée par une idéologie de combat, elle sacrifie parfois la poétique au profit de la politique. La deuxième tendance semble d'une nouvelle esthétique poétique basée sur l'individualité et l'expérience personnelle. La troisième voix poétique, profondément intimiste, est représentée par la poétesse Nida Khoury. Son approche de la résistance et du militantisme, ainsi que son approche originale de la langue révèle la profondeur d'une déchirure personnelle et la finesse d'un engagement subtilement exprimé.Enfin, le tiraillement intérieur entre deux appartenances et la recherche identitaire constituent l'un des principaux thèmes qui unissent les poètes de ces trois tendances.The present article focuses on showing the movements marking the evolution of Arabic poetry in Israel in a conflicting context. It points out three main tendencies. The first one, explicitly militant, developed in the lap of the Israeli communist party Rakah. Intended for a general public and animated by an ideology of fight, it sometimes sacrifices the poetics for the benefit of politics. The second tendency looks for a new poetic aesthetics based on individuality and personal experience. The third poetic voice, profoundly intimist, is represented by the poet Nidâ 'Khoury. Its approach of the resistance and the militancy as well as its original approach of the language reveal the depth of a personal tearing and the finesse of a subtly expressed commitment.Finally, the interior tugging between two belongings and the identical seeking constitute one of the main themes

Introduction à l'information quantique

CERN Document Server

Le Bellac, Michel

2005-01-01

La nouvelle science de l'information quantique est destinée à occuper, dans quelques années, une place importante en informatique. Les ordinateurs quantiques, encore de trop petite taille pour être utilisés efficacement, et la cryptographie quantique, opérationnelle depuis peu, représenteront alors une avancée décisive dans le domaine de la sécurité informatique. L'auteur de ce livre propose une introduction concise et précise, accessible pour l'essentiel aux non-spécialistes en physique, aux bases de cette nouvelle discipline. Un ouvrage important pour la jonction entre la communauté des informaticiens et celle des spécialistes de la physique quantique. "Le livre de Michel Le Bellac est promis à un beau succès. Il sera utile à tous ceux qui souhaitent comprendre les bases de la nouvelle science en train de naître. Bon voyage dans cet univers bizarre et mystérieux... qui est celui de notre avenir." Jean-Paul Delahaye

Supersymmetry and the unification of fundamental interactions.

Science.gov (United States)

Fayet, P.

Les physiciens élaborent progressivement une description unifée des lois de l'Univers, qui fait intervenir des principes de symétrie de plus en plus étendus. La supersymétrie, qui englobe la mécanique quantique et la relativité générale en opérant dans une extension de l'espace-temps ordinaire, appelée le superespace, est-elle l'un de ces principes fondamentaux? Dans cet article, l'auteur explique ce qu'est cette nouvelle symétrie, et comment, pour appliquer celle-ci au monde physique, il a été amené à envisager l'existence de toute une famille de nouvelles particules - comme les photinos, gluinos, squarks et sélectrons - que l'on recherche activement aujourd'hui. On espère parvenir à les détecter grâce aux nouvelles générations d'accélerateurs, et découvrir ainsi un nouveau principe auquel doivent satisfaire toutes les lois physiques, aussi fondamental que la relativité.

TECHNICAL TRAINING SEMINAR - French version only

CERN Multimedia

2003-01-01

Lundi 19 mai From 9:30 - 11:30 hrs - Training Centre Auditorium bât. 593, salle 11 PIPES 2003 - Introduction aux nouvelles méthodes de tuyauterie Michel Bosteels / CERN-ST-CV Depuis quelques années l'apparition de nouvelles méthodes de tuyauterie a changé radicalement leur conception, tant pour les applications industrielles que domestiques. Les utilisations au CERN concernent pratiquement tous les fluides, c'est-à-dire eau sanitaire, eau déminéralisée, air comprimé, fluorocarbones liquides ou gazeux, et tous les gaz, depuis l'hélium jusqu'au xénon. Ce séminaire de l'Enseignement Technique est adressé aux concepteurs et aux techniciens utilisant des tuyauteries de 2 mm jusqu'à 60 mm de diamètre: présentation des nouvelles techniques d'assemblage par sertissage sans soudure avec tubes en cuivre, inox et aluminium; applications, choix des raccords et calcul des diamètres pour tubes multicouches; utilisation du catalogue du magasin CERN. Langue: Français Séminaire libre, sans inscriptio...

TECHNICAL TRAINING SEMINAR - French version only

CERN Multimedia

2003-01-01

Lundi 19 mai From 9:30 - 11:30 hrs - Training Centre Auditorium bât. 593, salle 11 PIPES 2003 - Introduction aux nouvelles méthodes de tuyauterie Michel Bosteels / CERN-ST-CV Depuis quelques années l'apparition de nouvelles méthodes de tuyauterie a changé radicalement leur conception, tant pour les applications industrielles que domestiques. Les utilisations au CERN concernent pratiquement tous les fluides, c'est-à-dire eau sanitaire, eau déminéralisée, air comprimé, fluorocarbones liquides ou gazeux, et tous les gaz, depuis l'hélium jusqu'au xénon. Ce séminaire de l'Enseignement Technique est adressé aux concepteurs et aux techniciens utilisant des tuyauteries de 2 mm jusqu'à 60 mm de diamètre : présentation des nouvelles techniques d'assemblage par sertissage sans soudure avec tubes en cuivre, inox et aluminium ; applications, choix des raccords et calcul des diamètres pour tubes multicouches ; utilisation du catalogue du magasin CERN. Langue : Français Séminaire libre, sans inscr...

The diagnostic importance of species specific and cross-reactive components of Taenia solium, Echinococcus granulosus, and Hymenolepis nana Importância diagnóstica da reação cruzada espécie-específica de componentes da Taenia solium, Echinococcus granulosus e Hymenolepis nana

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Teresa Montenegro

1994-08-01

.nana a 49 e 66K-Da e no E.granulosus a 17-21 K-Da e 27-32 K-Da. No extrato não purificado de cisticercose uma banda específica não glicoproteica estava presente a 61-67 K-Da além das bandas de glicoproteínas específicas de 50, 42, 24, 21, 18, 14 e 13 K-Da. Nenhum destes soros de pacientes com infecção por H.nana ou E.granulosus reagiu de forma cruzada com estas sete bandas de glicoproteína consideradas específicas à infecção por T.solium

Developpement

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Fok Michel

2002-03-01

Full Text Available Cette contribution souligne le fait que la plupart des innovations techniques ont bénéficié d’arrangements institutionnels adaptés qui ont favorisé l’adoption de pratiques techniques nouvelles. Elle met en exergue la nécessité de considérer conjointement les innovations techniques et institutionnelles pour aider à réaliser un gain de productivité qui permettrait de renforcer la place des pays cotonniers de l’Afrique de l’Ouest et du Centre dans le monde. Malgré leur intérêt, les nouvelles technologies ne constituent pas la réponse unique, comme ce serait le cas dans les pays économiquement développés, dans la conception de nouvelles techniques culturales pour ces pays africains. Ces techniques doivent d’abord être conformes aux contraintes des paysans, par exemple, en termes de limitation de main-d’œuvre ou de finance. Le comportement des petits paysans face à l’incertitude et la limitation de leurs moyens est brièvement étudié. Cette analyse permet de mettre en évidence les éléments de cahier des charges des nouvelles techniques destinées à soulager les contraintes des paysans. Des exemples de techniques possibles sont présentés. Des cas spécifiques d’interaction entre innovation technique et innovation institutionnelle sont examinés. La mise au point de techniques efficaces et adaptées exige un changement dans le financement et dans la réalisation de la recherche.

Occurrence of tephra/volcanic tuff in the tertiary sediments of Himachal Himalaya from Tileli area, Mandi district, H.P.: implication for stratigraphy and uranium mineralization

International Nuclear Information System (INIS)

Pandey, Pradeep; Chabbra, Jyotsana; Joshi, G.B.; Parihar, P.S.

2014-01-01

Presence of Early Tertiary pyroclastic material (tephra) has been documented petrographically, for the first time, in the Mandi-Bilaspur Sector from Tileli area, Dharamsala basin of Himachal Pradesh. The tephra is reported from the red shale, identified as tuffaceous siltstone belonging to lower Dharamsala Formation that lies above the uraniferous sandstone body and occurs as thin layers of over 300m along the strike, close to the contact of lower and upper Dharamsala formations. The tuffaceous material shows crude but preferred orientation of minerals like biotite, muscovite, chlorite, clay, hematite and specularite. Various features indicating presence of tephra are, glass shards altered to clay but retaining 'U' shaped outline, spindle-shaped hematite with preferred orientation, spherical to sub-spherical clay and altered Fe oxide rich balls, clay groundmass with flow pattern, flaky minerals in association with clast depicting asymmetrical ramp structure. A zone of approximately 300 m length containing tuffaceous material has been established at Tileli overlying the uraniferous sandstone body. Identification of tephra at Tileli has significant implications as it enabled in demarcating the boundary between the upper and lower Dharamsala formations in central part of the basin in Bilaspur-Mandi Sector of HP Himalaya and also in guiding the uranium exploration programme in the lower Dharamsala Formation. (author)

Dillon quadrangle, Montana and Idaho

International Nuclear Information System (INIS)

Wodzicki, A.; Krason, J.

1981-04-01

All geologic conditions in the Dillon quadrangle (Montana and Idaho) have been thoroughly examined, and, using National Uranium Resource Evaluation criteria, environments are favorable for uranium deposits along fractured zones of Precambrian Y metasediments, in the McGowan Creek Formation, and in some Tertiary sedimentary basins. A 9-m-wide quartz-bearing fractured zone in Precambrian Y quartzites near Gibbonsville contains 175 ppM uranium, probably derived from formerly overlying Challis Volcanics by supergene processes. The Mississippian McGowan Creek Formation consists of uraniferous, black, siliceous mudstone and chert. In the Melrose district it has been fractured by a low-angle fault, and uranium has been further concentrated by circulating ground water in the 2- to 6-m-thick brecciated zones that in outcrop contain 90 to 170 ppM uranium. The Wise River, northern Divide Creek, Jefferson River, Salmon River, Horse Prairie, Beaverhead River, and upper Ruby River Basins are considered favorable for uranium deposits in sandstone. Present are suitable uraniferous source rocks such as the Boulder batholith, rhyolitic flow breccia, laharic deposits, or strongly welded tuffs; permeable sediments, including most sandstones and conglomerates, providing they do not contain devitrified glass; suitable reductants such as lignite, pyrite, or low-Eh geothermal water; and uranium occurrences

Uranium mineralization by ground water in sedimentary rocks, Japan

International Nuclear Information System (INIS)

Doi, K.; Hirono, S.; Sakamaki, Y.

1975-01-01

To solve the mechanism of uranium concentration in stratabound uranium deposits occurring in the basal part of Neogene sediments overlying granite basement, attention was paid to uranium leaching from weathered granite by circulating carbonated fissure waters, to effective adsorbents for fixing uranium from uraniferous ground waters, to structural features controlling the ground-water circulation, and other relevant factors. The evidence for uranium transportation by hydothermal solutions, including hot spring waters, is hard to observe. Conclusions are summarized as follows: Uranium in the deposits is supplied from surrounding source rocks, mostly from granite. Uranium is transported by circulating ground-water solutions. The uranium dissolved in ground water is fixed in minerals in various ways, the most important being adsorption by carbonaceous matter. Ore-grade uranium concentrated from very dilute solutions occurs by multiple repetition of a leaching-and-fixation cycle between minerals or adsorbents and circulating uraniferous ground water. Important factors for uranium mineralization are sufficient uranium, supplied mostly from granite, the existence of effective adsorbents such as carbonaceous matter in the host rocks, and favorable geological, geochemical, and geophysical environments. The last seem to require not only physical and chemical conditions but also correct flow and volume of ground water. (U.S.)

Bangalore, ville des nouvelles technologies

Directory of Open Access Journals (Sweden)

Clarisse Didelon

2003-06-01

Full Text Available Bangalore est devenue la Silicon Valley de l’Inde. Une partie de ses habitants y vit à l’occidentale mais le reste de la population souffre de la croissance spectaculaire de la ville. Face à l’insuffisance des infrastructures, Bangalore devient de moins en moins attractive pour les entreprises internationales.

Nouvelles mythologies : La GoPro

OpenAIRE

Tomasovic, Dick

2015-01-01

A la manière des mythologies de Roland Barthes, et à la demande de la rédaction du Focus Vif, une analyse des discours accompagnant la caméra "GoPro", mais aussi des pratiques audiovisuelles liées à cette caméra ultraportable ainsi qu'à l'esthétique et la circulation de ses images.

Transformation

OpenAIRE

Magnani, Eliana

2012-01-01

Avec le numéro 16, le Bucema inaugure une nouvelle formule éditoriale et de diffusion. Doté maintenant d’un comité de rédaction et d’un conseil scientifique, ayant mis en place une démarche d’évaluation des contributions, le Bucema devient une revue à comité de lecture consacrée aux études sur le Moyen Âge, tournée vers la communauté scientifique internationale. La nouvelle politique éditoriale de la revue, outre le souci d’exigence scientifique, met l’accent sur l’interdisciplinarité — scien...

Word of mouth, word of mouse : la campagne des Travaillistes à l'heure des « premières élections numériques » en Grande-Bretagne

OpenAIRE

Avril , Emmanuelle

2011-01-01

International audience; Les élections de 2010 ont été décrites comme « les premières élections numériques en Grande-Bretagne ». L’évolution des nouvelles technologies et de leur usage par les partis politiques depuis les élections de 2005 est frappante. Il est donc très important de se demander quel a été le poids véritable des nouveaux médias dans la campagne et dans quelle mesure les nouvelles technologies ont pu susciter un renouvellement des pratiques de campagne. Le parti travailliste, c...

Projet de conception d'un Espace multimédia à la Bibliothèque de la Ville de La Chaux-de-Fonds

OpenAIRE

Emmenegger, Isabelle; Schmutz, Thomas; Cotting, Patrick

2017-01-01

Cette étude a pour objectif de servir de base de travail pour la création et le développement d'un Espace multimédia à la Bibliothèque de la Ville de La Chaux-de-Fonds (BVCF). Elle décrit l'environnement général (contexte, état des lieux) des bibliothèques de lecture publique en Suisse et dans le monde, et aborde les problématiques des nouvelles technologies de l'information et de la communication (NTIC), des nouvelles pratiques de consommation de biens culturels audiovisuels ainsi que celles...

Uranium in Niger; L'uranium au Niger

Energy Technology Data Exchange (ETDEWEB)

Gabelmann, E

1978-03-15

This document presents government policy in the enhancement of uranium resources, existing mining companies and their productions, exploitation projects and economical outcome related to the uranium mining and auxiliary activities. [French] Le document presente la politique de l'Etat dans le cadre de la mise en valeur des ressources d'uranium, les societes minieres existantes et leurs productions, les projets d'exploitation d'uranium et les retombees economiques liees aux activites uraniferes et connexes.

Uranium band types in carbonaceous sediments with different diagenesis levels

International Nuclear Information System (INIS)

Borstel, D. von.

1984-01-01

Uraniferous peats, lignites and coals were studied by chemical and geological methods in order to determine the influence of carbonaceous substances with different diagenesis levels on uranium enrichment in sediments. It was found that the main factor of deposit genesis is not the chemical bending of uranium to the organic substance but rather the reduction from mobile U(VI) to immobile U(IV) in the course of diagenesis to epigenesis. (orig./PW) [de

Uranium deposits of Gabon and Oklo reactors. Metallogenic model for rich deposits of the lower proterozoic

International Nuclear Information System (INIS)

Gauthier-Lafaye, F.

1986-05-01

The geology of the Franceville basin (Gabon) is examined: stratigraphy, tectonics and geodynamics. The mobile zone of the Ogooue is specially studied: lithology, metamorphism and tectonics, isotopic geochronologic data are given. The different uranium deposits are described. A whole chapter is devoted to the study of Oklo natural nuclear reactor. A metallogenic model is proposed evidencing conditions required for deposit genesis. Tectonics, microstructures sedimentology, organic matter, diagenesis and uraniferous mineralizations are examined [fr

Uranium assessment for the Precambrian pebble conglomerates in southeastern Wyoming

International Nuclear Information System (INIS)

Borgman, L.E.; Sever, C.; Quimby, W.F.; Andrew, M.E.; Karlstrom, K.E.; Houston, R.S.

1981-03-01

This volume is a geostatistical resource estimate of uranium and thorium in quartz-pebble conglomerates, and is a companion to Volume 1: The Geology and Uranium Potential to Precambrian Conglomerates in the Medicine Bow Mountains and Sierra Madre of Southeastern Wyoming; and to Volume 2: Drill-Hole Data, Drill-Site Geology, and Geochemical Data from the Study of Precambrian Uraniferous Conglomerates of the Medicine Bow Mountains and the Sierra Madre of Southeastern Wyoming

Diversidad genética intra e inter-específica de ñame (Dioscorea spp. de la región Caribe de Colombia mediante marcadores AFLP

Directory of Open Access Journals (Sweden)

Hernando Javier Rivera-Jiménez

2011-12-01

Full Text Available Conocer la variabilidad genética del ñame, Dioscorea spp., permite apoyar estrategias de mejoramiento y conservación de este recurso fitogenético. El objetivo de este estudio fue la caracterización molecular de 20 accesiones de Dioscorea spp. mediante la técnica molecular de AFLP para determinar cómo se distribuye la variabilidad genética de manera intra e inter-específica. Los datos fueron analizados mediante los métodos de agrupación de correspondencia múltiple y análisis de similaridad de Dice, estableciendo los niveles de confiabilidad de los grupos genéticos mediante remuestreos. En términos de diversidad interespecífica, los valores promedios de similitud variaron entre 41.81% entre D. alata L. y D. rotundata Poir., y 33.51% entre D. trifida L.f. y D. esculenta (Lour. Burkill, lo que sugiere alta diversidad genética entre las accesiones estudiadas, que formaron cuatro grupos genéticos: D. alata, D. rotundata, D. esculenta y D. trifida, confirmando correspondencia entre la caracterización morfológica, clasificación botánica y la caracterización molecular. En términos de diversidad intraespecífica para la especie D. alata, el análisis también reveló una composición heterogénea en la región Caribe colombiana. Estos estudios ayudarán a definir una estrategia adecuada para fines de conservación y apoyar los esfuerzos futuros en los programas de mejoramiento genético.

Une ecole elementaire nouvelle pour une societe nouvelle (New Elementary Schools for a New Society).

Science.gov (United States)

Pare, Andre; Pelletier, Louise

1971-01-01

This article, translated into Spanish from the French, discusses changes and increasing complications in society which call for educational reform and improvement. Elementary education, traditionally based on memory skills, should become the setting for the development of mental processes and intellectual skills through the activity of problem…

Images de l’ennemi : Nouvelles et moins nouvelles figures du barbare et de la barbarie

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Raphaël Villatte

2013-01-01

Full Text Available Africa is not only a continent forgotten by international concern, but also by popular fiction. Since Africa draws creators’ attention, it arouses phantasms and provokes both modern and colonial-mythological fiction that reflects each other, where new representations of enemy and barbarous can be found regardless time, genres or media.

Presença de auto-anticorpos não-tireóide-específicos no soro de pacientes com hipotireoidismo auto-imune Presence of nonthyroid-specific autoantibodies in autoimmune hypothyroidism

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Débora Vieira Soares

2003-01-01

Full Text Available Auto-anticorpos contra componentes não-específicos da tireóide foram encontrados no soro de pacientes com doença auto-imune da tireóide. Neste estudo avaliamos a presença de auto-anticorpos antinucleares (ANA, antimúsculo liso (anti-ML e antimitocôndria (anti-Mc no soro de pacientes com hipotireoidismo auto-imune (HA, comparando-os a controles saudáveis. Estudamos 70 pacientes com hipotireoidismo auto-imune (tireoidite de Hashimoto ou tireoidite atrófica e 70 controles saudáveis (sem diagnóstico de doença auto-imune e tireoidiana, todos do sexo feminino, com média de idade de 50,2 anos (+ 15,9 e 49,6 anos (+ 14,4, respectivamente. O ANA, detectado através do sistema Inno-LIA™ ANA (Innogenetics, Bélgica, foi positivo em 26% dos pacientes com HA e em 14% dos controles, não sendo esta diferença significativa (p = 0,09. Não houve diferença entre tempo de doença ou idade entre os grupos ANA positivo ou negativo. Anticorpos anti-ML e anti-Mc foram negativos em todas as amostras, sendo analisados através de imunofluorescência indireta. Concluímos que pacientes com hipotireoidismo auto-imune não apresentaram maior incidência de auto-anticorpos não-específicos para tireóide do que controles saudáveis. Ressaltamos, contudo, que a associação entre doenças auto-imunes da tireóide e outras doenças auto-imunes é fato incontestável, podendo ocorrer em qualquer período no curso de sua evolução. Portanto avaliações regulares são recomendadas.Autoantibodies against nonthyroid-specific components were detected in sera of patients with autoimmune thyroid disease. In this study we investigated the presence of the antinuclear antibody (ANA, antismooth muscle antibody (anti-SM and antimitochondrial antibody (anti-Mc in the sera of patients with autoimmune hypothyroidism comparing them to a control group. We studied 70 patients with autoimmune hypothyroidism (Hashimoto's or atrophic thyroiditis and 70 healthy controls

Construção de iniciadores e otimização de ensaios de PCR e de nested-PCR para a detecção específica de Tritrichomonas foetus Primers design and optimization of PCR and nested-PCR assays for the specific detection of Tritrichomonas foetus

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Paula Rogério Fernandes

2008-09-01

Full Text Available Tritrichomonas foetus é um protozoário patogênico responsável por doença venérea em bovinos conhecida por tricomonose genital bovina. A tricomonose bovina é uma doença venérea causada pelo protozoário cujo habitat natural é o trato genital. Os protocolos já desenvolvidos para o diagnóstico deste parasito por PCR, apesar de serem eficazes na identificação do DNA genômico alvo, promovem algumas amplificações inespecíficas ou são incapazes de distinguir T. foetus das outras espécies do gênero. O presente trabalho foi desenvolvido com o objetivo de estabelecer e otimizar protocolos de ensaio de PCR e nested-PCR para o diagnóstico específico de T. foetus, empregando-se novos iniciadores, selecionados do alinhamento das seqüências dos genes 18S rRNA, 5,8S rRNA, 28S rRNA e dos espaços transcritos do rDNA (ITS1 e ITS2. Um par de iniciadores foi construído para amplificação gênero-específica de um fragmento de 648 pares de base e outros dois para a obtenção de produtos espécie- específicos de 343 e 429 pb. Nenhuma reação cruzada foi observada frente ao DNA genômico de Bos taurus ou de microrganismos responsáveis por infecções genitais. A sensibilidade dos ensaios de PCR e de nested-PCR apresentados neste estudo permitiu um limiar de detecção de até dois parasitos.Tritrichomonas foetus is a pathogenic protozoan that causes a venereal disease in cattle known as bovine genital tricomonosis. In spite of the efficacy to recognize the target genomic DNA, the protocols so far developed for the diagnosis of this organism by PCR promote some inespecific amplifications or they are unable to discriminate T. foetus against other species within the genus. The objective of this study was to assess and optimize PCR and nested-PCR assays for the specific diagnosis of T. foetus, using novel primers selected from the alignment of sequences of the genes 18S rRNA, 5.8S rRNA, 28S rRNA and of the internal transcribed spacers of the

Architecture and urban landscape as a Specific Globalization / Arquitectura y paisaje urbano como globalización específica

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Nikola Carevic

2012-09-01

de la esencia de la arquitectura. Para dar una respuesta, emerge el fenómeno de la “Globalización Específica” que se articula cuando varios proyectos arquitectónicos, son construidos por varios arquitectos, en el mismo espacio y al mismo tiempo simultáneamente, estableciendo relaciones mutuas entre sí y con el contexto socio–físico general; con el objetivo de crear un conjunto urbano contextual que refuerce la identidad de la ciudad. Esta globalización busca su especificidad en la manera de colocarse y adecuarse a cada lugar distinto en el nivel local, allí donde las ciudades globales pierden su interés, actúa y empieza a dotarse de contenido.

Blood carbonyl protein measurement as a specific oxidative stress biomarker after intestinal reperfusion in rats Dosagem da proteína carbonilada sanguínea como biomarcador específico do estresse oxidativo após reperfusão intestinal em ratos

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Márcio José Jamel

2010-02-01

Full Text Available PURPOSE: An experimental study was performed to investigate the use of protein carbonyl group as a specific biological marker for oxidative stress in a rat model of intestinal ischaemia-reperfusion. METHODS: Twenty four male Wistar rats were randomly distributed into three groups with eight animals each: Group 1 - Control group; Group 2 - Sham; Group 3 - Intestinal ischaemia by clamping ileal branches of the superior mesenteric artery for one hour, followed by another hour of reperfusion. Blood samples were taken in order to analyze the protein carbonyl level by Slot blotting assay. RESULTS: In group 3 a significant increase of protein carbonyl level was observed if compared to the homogenous levels of groups 1 and 2. CONCLUSION: From the results it may be concluded that the protein carbonylation may be used as a specific marker for measuring oxidative stress in rat intestinal reperfusion model.OBJETIVO: Realizou-se um estudo experimental com a finalidade de investigar o uso da proteína carbonilada como um marcador biológico específico do estresse oxidativo em um modelo de isquemia e reperfusão intestinal, em ratos. MÉTODOS: Vinte e quarto ratos da linhagem Wistar, machos foram distribuídos, aleatoriamente, em três grupos compostos por oito animais cada: Grupo 1 - Controle; Grupo 2 - Simulação e Grupo 3 - Submetido à isquemia, mediante clampeamento de ramos ileais da artéria mesentérica superior por uma hora, seguida de reperfusão, por igual período. Amostras sanguíneas obtidas foram utilizadas para analise dos níveis de proteína carbonilada, através do método Slot blotting. RESULTADOS: No grupo 3 houve uma elevação significante da concentração de proteína carbonilada sérica se comparada aos níveis sanguíneos homogêneos encontrados nos grupos 1 e 2. CONCLUSÃO: Fundamentado nos resultados é possível concluir que, a carbonilação protéica pode ser utilizada como um marcador específico para a mensuração do

Seminar on the news energy utilization in rural area of April 3 to March 24 , 1980 in Reo, Upper Volta[Energie renouvelable ; Zone rurale ; Gaz biologique ; Energie solaire ; Sechoir solaire]; Seminaire sur l'utilisation des energies nouvelles en zone rurale du 24 mars au3 avril 1980 a Reo, Haute Volta

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-04-15

volume of transport much more reduced. Mastering these new technologies will help fight efficiently against desertification, and fruits and vegetables rotting. [French] L'acces a l'energie par toutes les populations reste une des preoccupations du Gouvernement de Haute Volta (Burkina Faso). C'est ainsi que sous l'egide de la Communaute Economique de l Afrique de l'Ouest (CEAO), de l'Agence Canadienne de Developpement International et du Mouvement Scout, un seminaire sur l'utilisation des energies renouvelables en zone rurale y a ete organise. Il s'agit pour les participants venus de plusieurs pays, d'apprendre a mettre en pratique, l'utilisation des energies nouvelles telles la cuisiniere a feu ferme, le gaz biologique, le chauffe- eau solaire et le sechoir solaire. L'adoption de ces nouvelles sources d'energie par les populations permettrait de pallier les problemes de desertification lies au deboisement intensif dans le pays. Tous les participants a cette rencontre sont donc sensibilises pour qu'ils apportent leur contribution et celle des populations de leurs terroirs respectifs pour une meilleure conservation des ressources naturelles disponibles. Cela passe aussi par la construction de cuisinieres a feu ferme qui permettent d'avoir deux sources d'energie. Ce type de foyer est d'une construction facile et utilisable seulement trois jours apres. Il permet d'eviter la perte d'energie qui caracterisait le foyer traditionnel (pres de 95% de perte d'energie) ; ce qui revient a consommer moins de bois tout en assurant un rendement de l'ordre de 60 a 70%. Il s'est agi pour les participants aux travaux de s'initier a l'installation de gaz suivant des modeles chinois et indien . Ils ont donc ete inities a la realisation des technologies de production de gaz biologique a travers la maitrise du schema de principe du procede de fermentation discontinue. De meme, ils ont acquis le savoir- faire sur les techniques de mise en place du chauffe- eau solaire par insolateur et du

Inexistência de diferenças de sexo no fator g (inteligência geral e nas habilidades específicas em crianças de duas capitais brasileiras There are no sex differences on g factor and specific abilities in children from two Brazilian capitals

Directory of Open Access Journals (Sweden)

Carmen E. Flores-Mendoza

2007-01-01

Full Text Available O presente trabalho pretendeu examinar diferenças relacionadas ao sexo no fator g (inteligência geral e em habilidades específicas em crianças de duas cidades brasileiras: Belo Horizonte e Porto Alegre. No caso da amostra mineira (n=1,316, a idade compreendeu entre 5 e 11 anos de idade examinada através de uma bateria de testes a qual incluiu instrumentos de inteligência (Raven, Escala Verbal WISC III, R-2, DFH, de avaliação psicomotora (Bender e de desempenho escolar (TDE. No caso da amostra gaúcha (n=779, a idade compreendeu entre 5 e 11 anos, utilizando-se o teste Raven - Escala Colorida. A análise individual dos testes aponta que a maioria das diferenças nas habilidades específicas não é estatisticamente significativa. Na utilização do Método dos Vetores Correlacionados, uma análise mais sofisticada da inteligência geral, observa-se inexistência de diferenças de sexo. Tais resultados corroboram os registros internacionais sobre inexistência de diferenças cognitivas relacionadas ao sexo em crianças e adolescentes.This paper intended to verify sex differences on the g factor (general intelligence and specific abilities from a sample of children from two Brazilian cities: Belo Horizonte (BH and Porto Alegre (PA. The sample from BH (n=1.316 aged 5 to 11 years was examined with a battery of intelligence (CPM, Verbal Scale of WISC-III, R-2, psychomotor (Bender and school achievement tests. The sample from PA (n=779 aged 5 to 11 years was examined with Matrices Progressives Raven. The analysis from these tests shows that the majority of sex differences on specific abilities are not statistically significant. The use of Method Correlated Vectors, which is a most sophisticated method of analyzing general intelligence (g factor, indicates that there are no sex differences. These results support the international records about non-existence of cognitive difference relate to sex in childhood and adolescence.

Itataia project - Development of the process

International Nuclear Information System (INIS)

Coelho, S.V.

1987-01-01

A process for treating the phosphorus uraniferous ore, from Itataia-CE mine in Brazil, was developed, establishing the basic flow chart for recovery two products: uranium concentrate and phosphoric acid. The developed process consists in physical concentration, chemical separation, solvent extraction, and it presented, in laboratory and pilot scales, recovery levels which assure the project viability technicaly and economicaly. The consolidation of project and the description of installations are presented by a documentary film. (M.C.K.) [pt

Itataia project - Development of the process

International Nuclear Information System (INIS)

Coelho, S.V.

1987-01-01

A process for treating the phosphorous uraniferous ore, from Itataia-CE mine in Brazil, was developed, establishing the basic flow chart for recovery two products: uranium concentrate and phosphoric acid. The developed process consists in physical concentration, chemical separation, solvent extraction, and it presented, in laboratory and pilot scales, recovery leves which assure the project viability technically and economically. The consolidation of project and the description of installations are presented by a documentary film. (M.C.K.) [pt

Mineralogy and geochemistry of vanadium in the Colorado Plateau

Science.gov (United States)

Weeks, A.D.

1961-01-01

The chief domestic source of vanadium is uraniferous sandstone in the Colorado Plateau. Vanadium is 3-, 4-, or 5-valent in nature and, as oxides or combined with other elements, it forms more than 40 minerals in the Plateau ores. These ores have been studied with regard to the relative amounts of vanadium silicates and oxide-vanadates, uranium-vanadium ratios, the progressive oxidation of black low-valent ores to high-valent carnotite-type ores, and theories of origin. ?? 1961.

Works carried out in the south of Cerro Largo district. Uranium prospection programme. Preliminary report

International Nuclear Information System (INIS)

Goso, H.

1978-01-01

During the carried out work of radimetric preliminary Investigation in the northeast of the uraniferous country were detected radimetric anonalias which are associated to the formation San Gregorio and Tres Islas. Later the works of prospection ratified those anomalies to which they defined in the environs other anomalies. The studies of revision of these conducted anomalies they took to conclude the necessity to carry out a detailed study of the area to that district was denominated Cerro Largo Sur

Evaluation of selected geochemical anomalies in Colorado and the Southeastern US. Final report

International Nuclear Information System (INIS)

Carpenter, R.H.

1980-08-01

This study demonstrates the utility of HSSR geochemical data from stream sediment in exploration for uranium. In the southeastern US, four uraniferous occurrences and associated radiometric anomalies were identified in areas where uranium mineralization has not been previously reported. At two localities, assays of about .01% have been obtained from saprolite. There is some evidence which suggests that uranium may have been leached at these localities and that higher grades of U are likely at depth

Abattoirs et industrialisation de la production de la viande

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Anne-Elène Delavigne

2010-03-01

Full Text Available Une nouvelle ethnographie des abattoirsSaluons l'initiative de la collection « Natures sociales », dirigée par François Sigaut et Raphaël Larrère (édition MSH / Quae qui permet une nouvelle publication sur la thématique des abattoirs, vingt et un ans après l'ouvrage de Noélie Vialles, Le Sang et la Chair. Cet ouvrage qui a fait autorité en sciences sociales sur le sujet était d'ailleurs également publié par la Maison des Sciences de l'Homme. Depuis cette publication en 1987, le champ est tou...

« Women’s Studies » aux Etats-Unis : trente ans de succès et de contestation

OpenAIRE

BOXER, Marilyn

2006-01-01

Ces trente dernières années, les women’s studies se sont développées aux États-Unis et sont devenues un nouveau domaine du savoir dans l’enseignement supérieur. Entre 1978 et 1995, plus de 10 000 étudiants ont obtenu un diplôme doctoral fondé sur un travail de recherche dans ce domaine. Les women’s studies ont amené de nouvelles questions, de nouveaux concepts, de nouvelles catégories d’analyse et des interprétations révisées de la sagesse conventionnelle à beaucoup – si ce n’est à la plupart...

Étude du soudage LASER Yb : YAG homogène et hétérogène des superalliages Hastelloy X et Haynes 188

OpenAIRE

Graneix, Jérémie

2015-01-01

De nos jours, la complexité des pièces mécaniques est de plus en plus grande dans de nombreux secteurs industriels de pointes tels que l’aéronautique, l’aérospatiale ou bien encore le domaine médical. Pour répondre à ces nouvelles exigences, notamment en termes de géométrie, de nouvelles techniques de conception et de fabrication automatisées intègrant également une meilleure traçabilité des pièces, sont mises en place. Ce travail de thèse s’est inscrit dans un projet partenarial entre le Lab...

Modos subordinados de acceso a los clásicos en Los príncipes valientes de Javier Pérez Andújar

OpenAIRE

Cáliz Montes, Jessica

2015-01-01

Le présent article aborde la question de la diffusion de la culture savante à travers la culture visuelle en se centrant sur Los príncipes valientes (2007) de Javier Pérez Andújar. Concrètement, il analyse la cohabitation entre la tradition populaire, orale, et une nouvelle culture populaire, pendant la période du « tardo-franquisme ». Cette nouvelle culture est diffusée grâce à différents moyens, qui appartiennent à la « sous-culture » (Amorós) – la télévision, les bandes dessinées, le ciném...

‘Comprendre le mal extrême.’

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Christian Ruby

2003-10-01

Full Text Available Fondée sur l'exercice d'une terreur politique et sur un processus d'extermination radicale, une nouvelle forme de pouvoir d'État est née au 20 e  siècle. Afin de parler avec précision de cette nouvelle réalité, il fallait forger un concept encore inédit dans les typologies du pouvoir léguées par Platon et Montesquieu. La philosophe allemande (émigrée aux États-Unis, où elle prendra la nationalité américaine Hannah Arendt a proposé, en 1951, le concept de ...

Edgard Pisani (dir., 2007, Une politique mondiale pour nourrir le monde, Ed. Springer.

Directory of Open Access Journals (Sweden)

Benoît Lallau

2008-09-01

Full Text Available Voilà un ouvrage, qui, si j’ose dire, tombe bien. Ces derniers mois, les mauvaises nouvelles s’accumulent en effet sur la question alimentaire : renchérissement des denrées de base, grogne au Nord, émeutes de la faim au Sud. Des mauvaises nouvelles qui conduisent, il n’est que temps, à de nouveau débattre sérieusement de cette question. Et cet ouvrage apporte une contribution précieuse à ces débats, en avançant, dès son titre, une proposition essentielle : les tensions actuelles ne se résoudr...

Diagnóstico de ABPA em pacientes portadores de fibrose cística: utilidade clínica da pesquisa de IgE específica contra alérgenos recombinantes do Aspergillus fumigatus ABPA diagnosis in cystic fibrosis patients: the clinical utility of IgE specific to recombinant Aspergillus fumigatus allergens

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Marina B. Almeida

2006-06-01

Full Text Available OBJETIVO: A aspergilose broncopulmonar alérgica (ABPA é um fator complicador da fibrose cística que pode determinar uma combinação devastadora na evolução da doença pulmonar. A sobreposição de sinais e sintomas das duas enfermidades dificulta o diagnóstico, mesmo aplicando critérios padronizados. O objetivo deste trabalho foi identificar, em grupo de portadores de fibrose cística, os casos de ABPA através da detecção de IgE específica contra os alérgenos recombinantes do Aspergillus fumigatus e confrontar esse método com os critérios preconizados pela Cystic Fibrosis Foundation. MÉTODOS: Cinqüenta e quatro pacientes de 2 a 20 anos, com características que poderiam estar isoladamente presentes na ABPA, foram avaliados sistematicamente, incluindo: dados clínicos, tomografia computadorizada de tórax, teste cutâneo de hipersensibilidade imediata para A. fumigatus; dosagem de IgE sérica total, RAST para A. fumigatus, e IgE sérica específica para alérgenos recombinantes r Asp f1, f2, f3, f4 e f6. RESULTADOS: Foram elegíveis para o estudo 39 pacientes. Destes, 32 foram investigados. Houve sensibilização ao A. fumigatus em 34%. Ambos os métodos, o critério da Cystic Fibrosis Foundation e a pesquisa de IgE específica contra antígenos recombinantes, determinaram três casos de ABPA; entretanto, o diagnóstico foi concordante em apenas dois pacientes. CONCLUSÃO: A detecção de IgE específica contra antígenos recombinantes do A. fumigatus foi ferramenta útil para detecção precoce da sensibilização e diagnóstico de ABPA. No entanto, a confirmação diagnóstica não pôde ser desvinculada da condição clínica, e sua utilização para diagnóstico, detecção de recidivas e critério de cura ainda requer estudos longitudinais, envolvendo maior número de pacientes.OBJECTIVE: Allergic bronchopulmonary aspergillosis (ABPA is a complicating factor of cystic fibrosis which can result in a devastating combination as

Diversidad genética intra e inter-específica de ñame (Dioscorea spp. de la región Caribe de Colombia mediante marcadores AFLP

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Alvarez Soto Andres

2011-12-01

Full Text Available Conocer la variabilidad genética del ñame, Dioscorea spp., permite apoyar estrategias de mejoramiento y conservación de este recurso fitogenético. El objetivo de este estudio fue la caracterización molecular de 20 accesiones de Dioscorea spp. mediante la técnica molecular de AFLP para determinar cómo se distribuye la variabilidad genética de manera intra e inter-específica. Los datos fueron analizados mediante los métodos de agrupación de correspondencia múltiple y análisis de similaridad de Dice, estableciendo los niveles de confiabilidad de los grupos genéticos mediante remuestreos. En términos de diversidad interespecífica, los valores promedios de similitud variaron entre 41.81% entre D. alata L. y D. rotundata Poir., y 33.51% entre D. trifida L.f. y D. esculenta (Lour. Burkill, lo que sugiere alta diversidad genética entre las accesiones estudiadas, que formaron cuatro grupos genéticos: D. alata, D. rotundata, D. esculenta y D. trifida, confirmando correspondencia entre la caracterización morfológica, clasificación botánica y la caracterización molecular. En términos de diversidad intraespecífica para la especie D. alata, el análisis también reveló una composición heterogénea en la región Caribe colombiana. Estos estudios ayudarán a definir una estrategia adecuada para fines de conservación y apoyar los esfuerzos futuros en los programas de mejoramiento genético.

Distúrbio específico de linguagem: desempenho em testes de memória de trabalho fonológica e de habilidades auditivas

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Lidiane Yumi Sawasaki

2017-01-01

Full Text Available Hipóteses vêm sendo apontadas para explicar as dificuldades linguísticas de crianças com Distúrbio Específico de Linguagem (DEL, e, dentre elas, podemos citar alterações na memória de trabalho fonológica (MTF e no processamento auditivo temporal (PAT. Assim, o objetivo do presente estudo foi verificar o desempenho de sujeitos com DEL em testes de MTF, de PAT e de atenção auditiva sustentada (AAS e, ainda, verificar se há correlação entre eles. Foram selecionadas 12 crianças com idades entre 6 e 10 anos, sendo nove meninos, com diagnóstico de DEL da Clínica de Fonoaudiologia da FOBjUSP de Bauru. Foram aplicados os seguintes testes: prova de memória de trabalho fonológica (MTF não palavras e dígitos, teste da habilidade de resolução temporallZl Random Gap Detection Test (RGDT !li e teste de habilidade de atenção auditiva sustentada (THAAS. Nas três provas aplicadas IZIMTF, AAS e PAT !li foram encontrados resultados inferiores à normalidade. Na literatura há fortes evidências de que crianças com DEL apresentam desempenho inadequado em tarefas de MTF que envolvem o armazenamento de um estímulo verbal, fato também confirmado neste trabalho. Como se verificou neste trabalho, DEL pode também estar associado a dificuldades no processamento de elementos acústicos breves e na atenção sustentada. Foi possível verificar com este estudo que quadros de DEL podem apresentar dificuldades de MTF, de atenção sustentada e em habilidades de resolução temporal. Mesmo não havendo correlação entre os testes, a grande maioria das crianças com DEL apresentou desempenho deficitário nas habilidades testadas. O DEL decorre de uma dificuldade constitucional para o processamento neuropsicológico da linguagem, e, desse modo, pessoas com esse quadro podem apresentar disfunção em qualquer nível do processamento, incluindo o processamento auditivo.  

Uraniferous monazite from Ambativalasa, Vizianagaram District, Andhra Pradesh, India

International Nuclear Information System (INIS)

Ganga Rao, B.S.; Ramesh Kumar, P.V.; Raju, K.K.V.S.

1992-01-01

Monazite bearing cordierite gniesses of the Ambativalasa area are retrograde metamorphosed differentiates. X-ray diffraction patterns indicate that the new minerals produced were one phase multicomponent solid solutions containing U, Th and Y. Low cell parameters with high refractive index. La/Nd versus Σ(La+Ce+Pr) > 58 atom % suggesting LREE dominant with coupled substitution of Th and U by cerium family. (author). 9 refs., 2 tabs

Uraniferous leukogranites from the Namaqualand metamorphic complex: Pt. 1

International Nuclear Information System (INIS)

Robb, L.J.

1986-01-01

A number of small leucogranite or alaskite bodies intrude the Modderfontein augen gneiss on the farm Nooitgedacht, south-west of Springbok. These intrusions, correlated with the Kweekfontein Granite of the Spektakel Suite, are anomalously enriched in uranium and thorium, and certain of them have been assessed as potential low-grade deposits. The leucogranites are highly differentiated and are characterized by a pervasive alteration which has sericitized the feldspars and propylitized the biotite. Alteration was probably of a deuteric nature, associated with the late magmatic-early subsolidus stages, and was neither a low-temperature, open-system event, nor was it related to regional retrogressive metamorphism. The leucogranite bodies have I-type characteristics and appear to have been derived by partial melting of lower crustal material. A subset of eight leucogranites were analysed by neutron activation analysis for the rare-earth elements. Typical depleted lower crust is ruled out as a source, however, because of the necessity to markedly enrich the leucogranite magma in elements such as K, Rb, U, and Th. Scatter in Rb-Sr isotope ratios for the Nooitgedacht alaskites indicates that the source may have been heterogeneous and/or anomalously fertile in certain selected elements. In addition, a component of scatter was probably introduced during the extensive alteration of the rocks

Water management on the uraniferous mining sites of TCMF

International Nuclear Information System (INIS)

Humbert, J.; Ibos-Auge, J.S.; Polgaire, J.L.; Savin, B.

1992-01-01

The firm Total Compagnie Miniere France (TCMF) upgrades its ores on the sites of Jouac and Bertholene in cleaning plants. The operation of these sites is responsible for the production of solid and liquid waste which is deposited and/or processed to conform to the standard specifications in force. The treatment of this waste, whilst conforming to these standard specifications, is nevertheless an economical factor in the production, thanks to the recovery of uranium

Bulk division of metallogenetic region and uranium metallogenetic regularities in Heilongjiang basin and its adjacent areas

International Nuclear Information System (INIS)

Guo Hua; Zhao Fengmin; Hu Shaokang; Chen Zuyi

2002-01-01

On the base of the study in the working area, a conclusion is made that there are 36 combined types of tectonic-material and 6 basic tectonic units. According to radioactive geochemical quantitative and qualitative factors, which are relevant to rock composition and geological formation, 5 radioactive geochemical provinces and 8 radioactive geochemical differentiation regions could be marked out. The working area contains three hydrogeological fold belts and two hydrogeological artesian basins. It could also be divided into 9 metallogenetic provinces or 30 metallogenetic regions, or 206 ore districts. On the other hand, the area could be divided into 2 uranium metallogenetic provinces, 2 potential uranium metallogenetic provinces and 3 uraniferous provinces, which contain uranium properties or potential uranium properties or uraniferous properties. The authors systematically summary the geological environment and indicators of prospecting and predicting of fluorine-molybdenum-uranium formation, hydromorphic uranium deposit formation and poly-genetic uranium deposit formation which contains uranium-coal model, uranium-asphalt model, uranium-sulfuret model, etc. The metallogenetic potential among Aerdan uranium province, Aoliaokema uranium province, Bulieya-Jiamusi-Xingkai potential uranium province and Xihuote-Alin uranium province are assessed. On this base, the authors delineate 23 uranium metallogenetic prospective areas needing further exploration efforts. 8 uranium metallogenetic prospective areas in China are marked out, which are areas of interest for searching for exogenetic and epigenetic sandstone uranium deposits

Course design, action research and the use of computers: challanges in an ESP course Desenho de curso, pesquisa-ação e o uso do computador: desafios num curso de línguas para fins específicos

Directory of Open Access Journals (Sweden)

Silvia Matravolgyi Damião

2011-01-01

Full Text Available This paper presents the results of an action research project that focused on the design and teaching of an ESP course and on the collaborative construction and development of a website. In the first year of the study, the course plan was modified due to the feedback given by the students and the same happened to the site, which was uploaded and modified according to the students' productions within the period. The course plan was reformulated in the second year of the study based on the experience acquired in the first year, and tasks were introduced to fulfill the students' academic and future professional needs. At the end of the second year of the study, it was possible to confirm that the course plan, with the modifications that were introduced, was adequate, and that the site reflected the tasks prepared by the students within the period, therefore reaching the objectives proposed at the beginning of the study. It was also possible to propose new directions for ESP teaching at the Institution where the research was carried out.Este artigo descreve os resultados de uma pesquisa-ação que teve como objetivos desenvolver e acompanhar um curso de linglês para fins específicose sua docência, bem como a construção e desenvolvimento de um website. No primeiro ano do trabalho, o plano de curso foi modificado, devido ao retorno dado pelos alunos e o mesmo aconteceu com o site, que foi sendo alimentado e modificado de acordo com as produções dos alunos no período. O plano de curso foi reformulado no segundo ano do estudo, com base na experiência adquirida no ano anterior, e tarefas foram introduzidas para ir ao encontro das necessidades acadêmicas e futuras necessidades profissionais dos alunos. Ao final do segundo ano da pesquisa, foi possível confirmar que o plano de curso, com as modificações implementadas, era adequado e que o site refletia as tarefas feitas pelos alunos durante o curso, confirmando-se, assim, os objetivos

Love and Anxiety in the Early Postmodern World of Margaret Atwood’s Dancing Girls

Directory of Open Access Journals (Sweden)

Jennifer MURRAY

2010-09-01

Full Text Available Cet article se propose d’analyser le recueil de nouvelles Dancing Girls de Margaret Atwood (1977 par le biais de la thématique de l’angoisse ; de la crainte pour soi-même, l’angoisse évolue dans ces nouvelles vers d’autres formes d’angoisse liées à des questions d’éthique et au rapport aux autres. Une lecture minutieuse de plusieurs nouvelles permet de mettre en lumière une logique d’ensemble : l’angoisse qu’explore Atwood est étroitement liée aux relations entre les hommes et femmes à la période des années 60 et 70, où, malgré les promesses de libération sexuelle et féminine, un sentiment latent de vide, ressenti comme l’imminence d’un danger, pouvait être perceptible. Ce ressenti prend forme dans les nouvelles de Dancing Girls à travers des fantasmes de violence ou de victimisation, ainsi que des images associées au gothique et à la figure du double.This article analyses Margaret Atwood’s 1977 short story collection, Dancing Girls, looking at the evolution of forms of anxiety in the different texts, shifting as they do from individual, or self-directed anxiety, to more community-minded, altruistic forms. The article offers a close reading of some of the individual stories, showing how they contribute to an overall logic related (primarily, but not solely to male-female relations in the 1960s and 1970s. In spite of the promises of sexual and self liberation of the period, an underlying sense of emptiness, often experienced as impending danger, is perceptible and takes shape within Atwood’s stories as fantasies of violence or victimization, and appears in figures related to gothic imagery and doubleness.

Funções de pedotransferência para predição da umidade retida a potenciais específicos em solos do estado de Pernambuco

Directory of Open Access Journals (Sweden)

L. B. Oliveira

2002-06-01

Full Text Available Funções de pedotransferência são equações usadas para estimar características edáficas de difícil determinação a partir de outras mais facilmente obtidas. Apesar do bom número de equações disponíveis para estimativa da umidade retida a potenciais matriciais específicos, elas não devem ser usadas indiscriminadamente, pois, em sua maioria, foram desenvolvidas com solos de clima temperado e a partir de dados gerados por métodos diversos dos em uso nos laboratórios brasileiros. O presente trabalho teve por objetivos: (a elaborar funções de pedotransferência para estimar o conteúdo de água nos potenciais de -33 e -1.500 kPa e a água disponível, a partir de dados granulométricos e de densidade do solo, para solos do estado de Pernambuco e (b comparar a eficiência de predição das equações propostas em relação a equações similares, disponíveis na literatura. No desenvolvimento das equações, foi utilizada uma base de dados composta por 98 perfis de solos e 467 horizontes. Os perfis foram agrupados, de acordo com Sistema Brasileiro de Classificação de Solos, em 27 classes de terceiro nível categórico (grande grupo. As equações desenvolvidas apresentaram bons coeficientes de determinação e baixo erro de predição. A sistematização dos dados por atividade da fração argila ou grau aproximado de desenvolvimento ou classe textural não produziu melhorias na capacidade preditiva das pedofunções. As equações propostas em outros trabalhos apresentaram elevado erro de predição, o que restringe a sua utilização para solos do estado de Pernambuco.

The Blind River uranium deposits: the ores and their setting

International Nuclear Information System (INIS)

Robertson, J.A.

1976-01-01

The Matinenda Formation (basal Huronian) comprises northward-derived arkose, quartzite, and pyritic, uraniferous oligomictic conglomerate that contains 75 percent of Canada's uranium reserves. The conglomerate beds occur in southeasterly striking zones controlled by basement topography down-sedimentation from radioactive Archean granite. The mineralization is syngenetic, probably placer. Drab-coloured rocks, uranium and sulphide mineralization, and a post-Archean regolith formed under reducing conditions, suggest a reducing environment. Sedimentary features indicate deposition in fast-flowing shallow water, and possibly a cold climate. (author)

Evaluation of two processes for the production of phosphoric acid in pilot scale

International Nuclear Information System (INIS)

Santos Benedetto, J. dos.

1984-01-01

Two processes for the production of phosphoric acid, based on dihydrate route and hemihydrate route, have been evaluated. The processes were tested in a pilot plant using the concentrate obtained from phosphorus-uraniferous mineral from Itataia mines (CE, Brazil). Results were evaluated from the data obtained from phosphorus and uranium solubilizations. Also presented, although in a summarised way, are the description of the construction of the pilot plants and the analytical methods for the follow-up of processes. (Author) [pt